[libcxx] r224658 - Move test into test/std subdirectory.

[Eric Fiselier]

Added: libcxx/trunk/test/std/diagnostics/syserr/syserr.syserr/syserr.syserr.members/ctor_error_code_const_char_pointer.pass.cpp
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/test/std/diagnostics/syserr/syserr.syserr/syserr.syserr.members/ctor_error_code_const_char_pointer.pass.cpp?rev=224658&view=auto
==============================================================================
--- libcxx/trunk/test/std/diagnostics/syserr/syserr.syserr/syserr.syserr.members/ctor_error_code_const_char_pointer.pass.cpp (added)
+++ libcxx/trunk/test/std/diagnostics/syserr/syserr.syserr/syserr.syserr.members/ctor_error_code_const_char_pointer.pass.cpp Fri Dec 19 19:40:03 2014
@@ -0,0 +1,30 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <system_error>
+
+// class system_error
+
+// system_error(error_code ec, const char* what_arg);
+
+// Test is slightly non-portable
+
+#include <system_error>
+#include <string>
+#include <cassert>
+
+int main()
+{
+    std::string what_arg("test message");
+    std::system_error se(make_error_code(std::errc::not_a_directory), what_arg.c_str());
+    assert(se.code() == std::make_error_code(std::errc::not_a_directory));
+    std::string what_message(se.what());
+    assert(what_message.find(what_arg) != std::string::npos);
+    assert(what_message.find("Not a directory") != std::string::npos);
+}

Added: libcxx/trunk/test/std/diagnostics/syserr/syserr.syserr/syserr.syserr.members/ctor_error_code_string.pass.cpp
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/test/std/diagnostics/syserr/syserr.syserr/syserr.syserr.members/ctor_error_code_string.pass.cpp?rev=224658&view=auto
==============================================================================
--- libcxx/trunk/test/std/diagnostics/syserr/syserr.syserr/syserr.syserr.members/ctor_error_code_string.pass.cpp (added)
+++ libcxx/trunk/test/std/diagnostics/syserr/syserr.syserr/syserr.syserr.members/ctor_error_code_string.pass.cpp Fri Dec 19 19:40:03 2014
@@ -0,0 +1,30 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <system_error>
+
+// class system_error
+
+// system_error(error_code ec, const string& what_arg);
+
+// Test is slightly non-portable
+
+#include <system_error>
+#include <string>
+#include <cassert>
+
+int main()
+{
+    std::string what_arg("test message");
+    std::system_error se(make_error_code(std::errc::not_a_directory), what_arg);
+    assert(se.code() == std::make_error_code(std::errc::not_a_directory));
+    std::string what_message(se.what());
+    assert(what_message.find(what_arg) != std::string::npos);
+    assert(what_message.find("Not a directory") != std::string::npos);
+}

Added: libcxx/trunk/test/std/diagnostics/syserr/syserr.syserr/syserr.syserr.members/ctor_int_error_category.pass.cpp
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/test/std/diagnostics/syserr/syserr.syserr/syserr.syserr.members/ctor_int_error_category.pass.cpp?rev=224658&view=auto
==============================================================================
--- libcxx/trunk/test/std/diagnostics/syserr/syserr.syserr/syserr.syserr.members/ctor_int_error_category.pass.cpp (added)
+++ libcxx/trunk/test/std/diagnostics/syserr/syserr.syserr/syserr.syserr.members/ctor_int_error_category.pass.cpp Fri Dec 19 19:40:03 2014
@@ -0,0 +1,29 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <system_error>
+
+// class system_error
+
+// system_error(int ev, const error_category& ecat);
+
+// Test is slightly non-portable
+
+#include <system_error>
+#include <string>
+#include <cassert>
+
+int main()
+{
+    std::system_error se(static_cast<int>(std::errc::not_a_directory),
+                         std::generic_category());
+    assert(se.code() == std::make_error_code(std::errc::not_a_directory));
+    std::string what_message(se.what());
+    assert(what_message.find("Not a directory") != std::string::npos);
+}

Added: libcxx/trunk/test/std/diagnostics/syserr/syserr.syserr/syserr.syserr.members/ctor_int_error_category_const_char_pointer.pass.cpp
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/test/std/diagnostics/syserr/syserr.syserr/syserr.syserr.members/ctor_int_error_category_const_char_pointer.pass.cpp?rev=224658&view=auto
==============================================================================
--- libcxx/trunk/test/std/diagnostics/syserr/syserr.syserr/syserr.syserr.members/ctor_int_error_category_const_char_pointer.pass.cpp (added)
+++ libcxx/trunk/test/std/diagnostics/syserr/syserr.syserr/syserr.syserr.members/ctor_int_error_category_const_char_pointer.pass.cpp Fri Dec 19 19:40:03 2014
@@ -0,0 +1,31 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <system_error>
+
+// class system_error
+
+// system_error(int ev, const error_category& ecat, const char* what_arg);
+
+// Test is slightly non-portable
+
+#include <system_error>
+#include <string>
+#include <cassert>
+
+int main()
+{
+    std::string what_arg("test message");
+    std::system_error se(static_cast<int>(std::errc::not_a_directory),
+                         std::generic_category(), what_arg.c_str());
+    assert(se.code() == std::make_error_code(std::errc::not_a_directory));
+    std::string what_message(se.what());
+    assert(what_message.find(what_arg) != std::string::npos);
+    assert(what_message.find("Not a directory") != std::string::npos);
+}

Added: libcxx/trunk/test/std/diagnostics/syserr/syserr.syserr/syserr.syserr.members/ctor_int_error_category_string.pass.cpp
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/test/std/diagnostics/syserr/syserr.syserr/syserr.syserr.members/ctor_int_error_category_string.pass.cpp?rev=224658&view=auto
==============================================================================
--- libcxx/trunk/test/std/diagnostics/syserr/syserr.syserr/syserr.syserr.members/ctor_int_error_category_string.pass.cpp (added)
+++ libcxx/trunk/test/std/diagnostics/syserr/syserr.syserr/syserr.syserr.members/ctor_int_error_category_string.pass.cpp Fri Dec 19 19:40:03 2014
@@ -0,0 +1,31 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <system_error>
+
+// class system_error
+
+// system_error(int ev, const error_category& ecat, const string& what_arg);
+
+// Test is slightly non-portable
+
+#include <system_error>
+#include <string>
+#include <cassert>
+
+int main()
+{
+    std::string what_arg("test message");
+    std::system_error se(static_cast<int>(std::errc::not_a_directory),
+                         std::generic_category(), what_arg);
+    assert(se.code() == std::make_error_code(std::errc::not_a_directory));
+    std::string what_message(se.what());
+    assert(what_message.find(what_arg) != std::string::npos);
+    assert(what_message.find("Not a directory") != std::string::npos);
+}

Added: libcxx/trunk/test/std/diagnostics/syserr/syserr.syserr/syserr.syserr.overview/nothing_to_do.pass.cpp
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/test/std/diagnostics/syserr/syserr.syserr/syserr.syserr.overview/nothing_to_do.pass.cpp?rev=224658&view=auto
==============================================================================
--- libcxx/trunk/test/std/diagnostics/syserr/syserr.syserr/syserr.syserr.overview/nothing_to_do.pass.cpp (added)
+++ libcxx/trunk/test/std/diagnostics/syserr/syserr.syserr/syserr.syserr.overview/nothing_to_do.pass.cpp Fri Dec 19 19:40:03 2014
@@ -0,0 +1,12 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+int main()
+{
+}

Added: libcxx/trunk/test/std/diagnostics/syserr/version.pass.cpp
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/test/std/diagnostics/syserr/version.pass.cpp?rev=224658&view=auto
==============================================================================
--- libcxx/trunk/test/std/diagnostics/syserr/version.pass.cpp (added)
+++ libcxx/trunk/test/std/diagnostics/syserr/version.pass.cpp Fri Dec 19 19:40:03 2014
@@ -0,0 +1,20 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <system_error>
+
+#include <system_error>
+
+#ifndef _LIBCPP_VERSION
+#error _LIBCPP_VERSION not defined
+#endif
+
+int main()
+{
+}

Added: libcxx/trunk/test/std/experimental/nothing_to_do.pass.cpp
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/test/std/experimental/nothing_to_do.pass.cpp?rev=224658&view=auto
==============================================================================
--- libcxx/trunk/test/std/experimental/nothing_to_do.pass.cpp (added)
+++ libcxx/trunk/test/std/experimental/nothing_to_do.pass.cpp Fri Dec 19 19:40:03 2014
@@ -0,0 +1,12 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#include <experimental/string_view>
+
+int main () {}

Added: libcxx/trunk/test/std/experimental/optional/optional.bad_optional_access/default.pass.cpp
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/test/std/experimental/optional/optional.bad_optional_access/default.pass.cpp?rev=224658&view=auto
==============================================================================
--- libcxx/trunk/test/std/experimental/optional/optional.bad_optional_access/default.pass.cpp (added)
+++ libcxx/trunk/test/std/experimental/optional/optional.bad_optional_access/default.pass.cpp Fri Dec 19 19:40:03 2014
@@ -0,0 +1,23 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <optional>
+
+// class bad_optional_access is default constructible
+
+#include <experimental/optional>
+#include <type_traits>
+
+int main()
+{
+#if _LIBCPP_STD_VER > 11
+    using std::experimental::bad_optional_access;
+    bad_optional_access ex;
+#endif  // _LIBCPP_STD_VER > 11
+}

Added: libcxx/trunk/test/std/experimental/optional/optional.bad_optional_access/derive.pass.cpp
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/test/std/experimental/optional/optional.bad_optional_access/derive.pass.cpp?rev=224658&view=auto
==============================================================================
--- libcxx/trunk/test/std/experimental/optional/optional.bad_optional_access/derive.pass.cpp (added)
+++ libcxx/trunk/test/std/experimental/optional/optional.bad_optional_access/derive.pass.cpp Fri Dec 19 19:40:03 2014
@@ -0,0 +1,25 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <optional>
+
+// class bad_optional_access : public logic_error 
+
+#include <experimental/optional>
+#include <type_traits>
+
+int main()
+{
+#if _LIBCPP_STD_VER > 11
+    using std::experimental::bad_optional_access;
+
+    static_assert(std::is_base_of<std::logic_error, bad_optional_access>::value, "");
+    static_assert(std::is_convertible<bad_optional_access*, std::logic_error*>::value, "");
+#endif  // _LIBCPP_STD_VER > 11
+}

Added: libcxx/trunk/test/std/experimental/optional/optional.comp_with_t/equal.pass.cpp
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/test/std/experimental/optional/optional.comp_with_t/equal.pass.cpp?rev=224658&view=auto
==============================================================================
--- libcxx/trunk/test/std/experimental/optional/optional.comp_with_t/equal.pass.cpp (added)
+++ libcxx/trunk/test/std/experimental/optional/optional.comp_with_t/equal.pass.cpp Fri Dec 19 19:40:03 2014
@@ -0,0 +1,58 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <optional>
+
+// template <class T> constexpr bool operator==(const optional<T>& x, const T& v);
+// template <class T> constexpr bool operator==(const T& v, const optional<T>& x);
+
+#include <experimental/optional>
+
+#if _LIBCPP_STD_VER > 11
+
+using std::experimental::optional;
+
+struct X
+{
+    int i_;
+
+    constexpr X(int i) : i_(i) {}
+};
+
+constexpr bool operator == ( const X &lhs, const X &rhs )
+    { return lhs.i_ == rhs.i_ ; }
+    
+#endif
+
+int main()
+{
+#if _LIBCPP_STD_VER > 11
+    {
+    typedef X T;
+    typedef optional<T> O;
+    
+    constexpr T val(2);
+    constexpr O o1;       // disengaged
+    constexpr O o2{1};    // engaged
+    constexpr O o3{val};  // engaged
+
+    static_assert ( !(o1 == T(1)), "" );
+    static_assert (  (o2 == T(1)), "" );
+    static_assert ( !(o3 == T(1)), "" );
+    static_assert (  (o3 == T(2)), "" );
+    static_assert (  (o3 == val),  "" );
+        
+    static_assert ( !(T(1) == o1), "" );
+    static_assert (  (T(1) == o2), "" );
+    static_assert ( !(T(1) == o3), "" );
+    static_assert (  (T(2) == o3), "" );
+    static_assert (  (val  == o3), "" );
+    }
+#endif
+}

Added: libcxx/trunk/test/std/experimental/optional/optional.comp_with_t/greater.pass.cpp
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/test/std/experimental/optional/optional.comp_with_t/greater.pass.cpp?rev=224658&view=auto
==============================================================================
--- libcxx/trunk/test/std/experimental/optional/optional.comp_with_t/greater.pass.cpp (added)
+++ libcxx/trunk/test/std/experimental/optional/optional.comp_with_t/greater.pass.cpp Fri Dec 19 19:40:03 2014
@@ -0,0 +1,61 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <optional>
+
+// template <class T> constexpr bool operator>(const optional<T>& x, const T& v);
+// template <class T> constexpr bool operator>(const T& v, const optional<T>& x);
+
+#include <experimental/optional>
+
+#if _LIBCPP_STD_VER > 11
+
+using std::experimental::optional;
+
+struct X
+{
+    int i_;
+
+    constexpr X(int i) : i_(i) {}
+};
+
+constexpr bool operator < ( const X &lhs, const X &rhs )
+    { return lhs.i_ < rhs.i_ ; }
+    
+#endif
+
+int main()
+{
+#if _LIBCPP_STD_VER > 11
+
+    {
+    typedef X T;
+    typedef optional<T> O;
+
+    constexpr T val(2);
+    constexpr O o1;       // disengaged
+    constexpr O o2{1};    // engaged
+    constexpr O o3{val};  // engaged
+
+    static_assert ( !(o1 > T(1)), "" );
+    static_assert ( !(o2 > T(1)), "" );  // equal
+    static_assert (  (o3 > T(1)), "" );
+    static_assert ( !(o2 >  val), "" );
+    static_assert ( !(o3 >  val), "" );  // equal
+    static_assert ( !(o3 > T(3)), "" );
+
+    static_assert (   (T(1) > o1), "" );
+    static_assert (  !(T(1) > o2), "" ); // equal
+    static_assert (  !(T(1) > o3), "" );
+    static_assert (   (val  > o2), "" );
+    static_assert (  !(val  > o3), "" ); // equal
+    static_assert (   (T(3) > o3), "" );
+    }
+#endif
+}

Added: libcxx/trunk/test/std/experimental/optional/optional.comp_with_t/greater_equal.pass.cpp
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/test/std/experimental/optional/optional.comp_with_t/greater_equal.pass.cpp?rev=224658&view=auto
==============================================================================
--- libcxx/trunk/test/std/experimental/optional/optional.comp_with_t/greater_equal.pass.cpp (added)
+++ libcxx/trunk/test/std/experimental/optional/optional.comp_with_t/greater_equal.pass.cpp Fri Dec 19 19:40:03 2014
@@ -0,0 +1,61 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <optional>
+
+// template <class T> constexpr bool operator>=(const optional<T>& x, const T& v);
+// template <class T> constexpr bool operator>=(const T& v, const optional<T>& x);
+
+#include <experimental/optional>
+
+#if _LIBCPP_STD_VER > 11
+
+using std::experimental::optional;
+
+struct X
+{
+    int i_;
+
+    constexpr X(int i) : i_(i) {}
+};
+
+constexpr bool operator < ( const X &lhs, const X &rhs )
+    { return lhs.i_ < rhs.i_ ; }
+    
+#endif
+
+int main()
+{
+#if _LIBCPP_STD_VER > 11
+
+    {
+    typedef X T;
+    typedef optional<T> O;
+
+    constexpr T val(2);
+    constexpr O o1;       // disengaged
+    constexpr O o2{1};    // engaged
+    constexpr O o3{val};  // engaged
+
+    static_assert ( !(o1 >= T(1)), "" );
+    static_assert (  (o2 >= T(1)), "" );  // equal
+    static_assert (  (o3 >= T(1)), "" );
+    static_assert ( !(o2 >=  val), "" );
+    static_assert (  (o3 >=  val), "" );  // equal
+    static_assert ( !(o3 >= T(3)), "" );
+
+    static_assert (   (T(1) >= o1), "" );
+    static_assert (   (T(1) >= o2), "" ); // equal
+    static_assert (  !(T(1) >= o3), "" );
+    static_assert (   (val  >= o2), "" );
+    static_assert (   (val  >= o3), "" ); // equal
+    static_assert (   (T(3) >= o3), "" );
+    }
+#endif
+}

Added: libcxx/trunk/test/std/experimental/optional/optional.comp_with_t/less_equal.pass.cpp
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/test/std/experimental/optional/optional.comp_with_t/less_equal.pass.cpp?rev=224658&view=auto
==============================================================================
--- libcxx/trunk/test/std/experimental/optional/optional.comp_with_t/less_equal.pass.cpp (added)
+++ libcxx/trunk/test/std/experimental/optional/optional.comp_with_t/less_equal.pass.cpp Fri Dec 19 19:40:03 2014
@@ -0,0 +1,61 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <optional>
+
+// template <class T> constexpr bool operator<=(const optional<T>& x, const T& v);
+// template <class T> constexpr bool operator<=(const T& v, const optional<T>& x);
+
+#include <experimental/optional>
+
+#if _LIBCPP_STD_VER > 11
+
+using std::experimental::optional;
+
+struct X
+{
+    int i_;
+
+    constexpr X(int i) : i_(i) {}
+};
+
+constexpr bool operator < ( const X &lhs, const X &rhs )
+    { return lhs.i_ < rhs.i_ ; }
+    
+#endif
+
+int main()
+{
+#if _LIBCPP_STD_VER > 11
+
+    {
+    typedef X T;
+    typedef optional<T> O;
+
+    constexpr T val(2);
+    constexpr O o1;       // disengaged
+    constexpr O o2{1};    // engaged
+    constexpr O o3{val};  // engaged
+
+    static_assert (  (o1 <= T(1)), "" );
+    static_assert (  (o2 <= T(1)), "" );  // equal
+    static_assert ( !(o3 <= T(1)), "" );
+    static_assert (  (o2 <=  val), "" );
+    static_assert (  (o3 <=  val), "" );  // equal
+    static_assert (  (o3 <= T(3)), "" );
+
+    static_assert (  !(T(1) <= o1), "" );
+    static_assert (   (T(1) <= o2), "" ); // equal
+    static_assert (   (T(1) <= o3), "" );
+    static_assert (  !(val  <= o2), "" );
+    static_assert (   (val  <= o3), "" ); // equal
+    static_assert (  !(T(3) <= o3), "" );
+    }
+#endif
+}

Added: libcxx/trunk/test/std/experimental/optional/optional.comp_with_t/less_than.pass.cpp
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/test/std/experimental/optional/optional.comp_with_t/less_than.pass.cpp?rev=224658&view=auto
==============================================================================
--- libcxx/trunk/test/std/experimental/optional/optional.comp_with_t/less_than.pass.cpp (added)
+++ libcxx/trunk/test/std/experimental/optional/optional.comp_with_t/less_than.pass.cpp Fri Dec 19 19:40:03 2014
@@ -0,0 +1,61 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <optional>
+
+// template <class T> constexpr bool operator<(const optional<T>& x, const T& v);
+// template <class T> constexpr bool operator<(const T& v, const optional<T>& x);
+
+#include <experimental/optional>
+
+#if _LIBCPP_STD_VER > 11
+
+using std::experimental::optional;
+
+struct X
+{
+    int i_;
+
+    constexpr X(int i) : i_(i) {}
+};
+
+constexpr bool operator < ( const X &lhs, const X &rhs )
+    { return lhs.i_ < rhs.i_ ; }
+    
+#endif
+
+int main()
+{
+#if _LIBCPP_STD_VER > 11
+
+    {
+    typedef X T;
+    typedef optional<T> O;
+
+    constexpr T val(2);
+    constexpr O o1;       // disengaged
+    constexpr O o2{1};    // engaged
+    constexpr O o3{val};  // engaged
+
+    static_assert (  (o1 < T(1)), "" );
+    static_assert ( !(o2 < T(1)), "" );  // equal
+    static_assert ( !(o3 < T(1)), "" );
+    static_assert (  (o2 <  val), "" );
+    static_assert ( !(o3 <  val), "" );  // equal
+    static_assert (  (o3 < T(3)), "" );
+
+    static_assert (  !(T(1) < o1), "" );
+    static_assert (  !(T(1) < o2), "" ); // equal
+    static_assert (   (T(1) < o3), "" );
+    static_assert (  !(val  < o2), "" );
+    static_assert (  !(val  < o3), "" ); // equal
+    static_assert (  !(T(3) < o3), "" );
+    }
+#endif
+}

Added: libcxx/trunk/test/std/experimental/optional/optional.comp_with_t/not_equal.pass.cpp
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/test/std/experimental/optional/optional.comp_with_t/not_equal.pass.cpp?rev=224658&view=auto
==============================================================================
--- libcxx/trunk/test/std/experimental/optional/optional.comp_with_t/not_equal.pass.cpp (added)
+++ libcxx/trunk/test/std/experimental/optional/optional.comp_with_t/not_equal.pass.cpp Fri Dec 19 19:40:03 2014
@@ -0,0 +1,58 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <optional>
+
+// template <class T> constexpr bool operator!=(const optional<T>& x, const T& v);
+// template <class T> constexpr bool operator!=(const T& v, const optional<T>& x);
+
+#include <experimental/optional>
+
+#if _LIBCPP_STD_VER > 11
+
+using std::experimental::optional;
+
+struct X
+{
+    int i_;
+
+    constexpr X(int i) : i_(i) {}
+};
+
+constexpr bool operator == ( const X &lhs, const X &rhs )
+    { return lhs.i_ == rhs.i_ ; }
+    
+#endif
+
+int main()
+{
+#if _LIBCPP_STD_VER > 11
+    {
+    typedef X T;
+    typedef optional<T> O;
+    
+    constexpr T val(2);
+    constexpr O o1;       // disengaged
+    constexpr O o2{1};    // engaged
+    constexpr O o3{val};  // engaged
+
+    static_assert (  (o1 != T(1)), "" );
+    static_assert ( !(o2 != T(1)), "" );
+    static_assert (  (o3 != T(1)), "" );
+    static_assert ( !(o3 != T(2)), "" );
+    static_assert ( !(o3 != val),  "" );
+        
+    static_assert (  (T(1) != o1), "" );
+    static_assert ( !(T(1) != o2), "" );
+    static_assert (  (T(1) != o3), "" );
+    static_assert ( !(T(2) != o3), "" );
+    static_assert ( !(val  != o3), "" );
+    }
+#endif
+}

Added: libcxx/trunk/test/std/experimental/optional/optional.defs/tested_elsewhere.pass.cpp
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/test/std/experimental/optional/optional.defs/tested_elsewhere.pass.cpp?rev=224658&view=auto
==============================================================================
--- libcxx/trunk/test/std/experimental/optional/optional.defs/tested_elsewhere.pass.cpp (added)
+++ libcxx/trunk/test/std/experimental/optional/optional.defs/tested_elsewhere.pass.cpp Fri Dec 19 19:40:03 2014
@@ -0,0 +1,12 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+int main()
+{
+}

Added: libcxx/trunk/test/std/experimental/optional/optional.general/nothing_to_do.pass.cpp
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/test/std/experimental/optional/optional.general/nothing_to_do.pass.cpp?rev=224658&view=auto
==============================================================================
--- libcxx/trunk/test/std/experimental/optional/optional.general/nothing_to_do.pass.cpp (added)
+++ libcxx/trunk/test/std/experimental/optional/optional.general/nothing_to_do.pass.cpp Fri Dec 19 19:40:03 2014
@@ -0,0 +1,12 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+int main()
+{
+}

Added: libcxx/trunk/test/std/experimental/optional/optional.hash/hash.pass.cpp
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/test/std/experimental/optional/optional.hash/hash.pass.cpp?rev=224658&view=auto
==============================================================================
--- libcxx/trunk/test/std/experimental/optional/optional.hash/hash.pass.cpp (added)
+++ libcxx/trunk/test/std/experimental/optional/optional.hash/hash.pass.cpp Fri Dec 19 19:40:03 2014
@@ -0,0 +1,47 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <optional>
+
+// template <class T> struct hash<optional<T>>;
+
+#include <experimental/optional>
+#include <string>
+#include <memory>
+#include <cassert>
+
+
+int main()
+{
+#if _LIBCPP_STD_VER > 11
+    using std::experimental::optional;
+
+    {
+        typedef int T;
+        optional<T> opt;
+        assert(std::hash<optional<T>>{}(opt) == 0);
+        opt = 2;
+        assert(std::hash<optional<T>>{}(opt) == std::hash<T>{}(*opt));
+    }
+    {
+        typedef std::string T;
+        optional<T> opt;
+        assert(std::hash<optional<T>>{}(opt) == 0);
+        opt = std::string("123");
+        assert(std::hash<optional<T>>{}(opt) == std::hash<T>{}(*opt));
+    }
+    {
+        typedef std::unique_ptr<int> T;
+        optional<T> opt;
+        assert(std::hash<optional<T>>{}(opt) == 0);
+        opt = std::unique_ptr<int>(new int(3));
+        assert(std::hash<optional<T>>{}(opt) == std::hash<T>{}(*opt));
+    }
+#endif  // _LIBCPP_STD_VER > 11
+}

Added: libcxx/trunk/test/std/experimental/optional/optional.inplace/in_place_t.pass.cpp
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/test/std/experimental/optional/optional.inplace/in_place_t.pass.cpp?rev=224658&view=auto
==============================================================================
--- libcxx/trunk/test/std/experimental/optional/optional.inplace/in_place_t.pass.cpp (added)
+++ libcxx/trunk/test/std/experimental/optional/optional.inplace/in_place_t.pass.cpp Fri Dec 19 19:40:03 2014
@@ -0,0 +1,42 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <optional>
+
+// struct in_place_t{};
+// constexpr in_place_t in_place{};
+
+#include <experimental/optional>
+#include <type_traits>
+
+#if _LIBCPP_STD_VER > 11
+
+using std::experimental::optional;
+using std::experimental::in_place_t;
+using std::experimental::in_place;
+
+constexpr
+int
+test(const in_place_t&)
+{
+    return 3;
+}
+
+#endif
+
+int main()
+{
+#if _LIBCPP_STD_VER > 11
+
+    static_assert((std::is_class<in_place_t>::value), "");
+    static_assert((std::is_empty<in_place_t>::value), "");
+    
+    static_assert(test(in_place) == 3, "");
+#endif
+}

Added: libcxx/trunk/test/std/experimental/optional/optional.nullops/equal.pass.cpp
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/test/std/experimental/optional/optional.nullops/equal.pass.cpp?rev=224658&view=auto
==============================================================================
--- libcxx/trunk/test/std/experimental/optional/optional.nullops/equal.pass.cpp (added)
+++ libcxx/trunk/test/std/experimental/optional/optional.nullops/equal.pass.cpp Fri Dec 19 19:40:03 2014
@@ -0,0 +1,41 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+
+// <optional>
+
+// template <class T> constexpr bool operator==(const optional<T>& x, nullopt_t) noexcept;
+// template <class T> constexpr bool operator==(nullopt_t, const optional<T>& x) noexcept;
+
+#include <experimental/optional>
+
+int main()
+{
+#if _LIBCPP_STD_VER > 11
+    using std::experimental::optional;
+    using std::experimental::nullopt_t;
+    using std::experimental::nullopt;
+    
+    {
+    typedef int T;
+    typedef optional<T> O;
+    
+    constexpr O o1;     // disengaged
+    constexpr O o2{1};  // engaged
+
+    static_assert (  (nullopt == o1), "" );
+    static_assert ( !(nullopt == o2), "" );
+    static_assert (  (o1 == nullopt), "" );
+    static_assert ( !(o2 == nullopt), "" );
+
+    static_assert (noexcept(nullopt == o1), "");
+    static_assert (noexcept(o1 == nullopt), "");
+    }
+#endif
+}

Added: libcxx/trunk/test/std/experimental/optional/optional.nullops/greater.pass.cpp
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/test/std/experimental/optional/optional.nullops/greater.pass.cpp?rev=224658&view=auto
==============================================================================
--- libcxx/trunk/test/std/experimental/optional/optional.nullops/greater.pass.cpp (added)
+++ libcxx/trunk/test/std/experimental/optional/optional.nullops/greater.pass.cpp Fri Dec 19 19:40:03 2014
@@ -0,0 +1,41 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+
+// <optional>
+
+// template <class T> constexpr bool operator>(const optional<T>& x, nullopt_t) noexcept;
+// template <class T> constexpr bool operator>(nullopt_t, const optional<T>& x) noexcept;
+
+#include <experimental/optional>
+
+int main()
+{
+#if _LIBCPP_STD_VER > 11
+    using std::experimental::optional;
+    using std::experimental::nullopt_t;
+    using std::experimental::nullopt;
+
+    {
+    typedef int T;
+    typedef optional<T> O;
+    
+    constexpr O o1;     // disengaged
+    constexpr O o2{1};  // engaged
+
+    static_assert ( !(nullopt > o1), "" );
+    static_assert ( !(nullopt > o2), "" );
+    static_assert ( !(o1 > nullopt), "" );
+    static_assert (  (o2 > nullopt), "" );
+
+    static_assert (noexcept(nullopt > o1), "");
+    static_assert (noexcept(o1 > nullopt), "");
+    }
+#endif
+}

Added: libcxx/trunk/test/std/experimental/optional/optional.nullops/greater_equal.pass.cpp
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/test/std/experimental/optional/optional.nullops/greater_equal.pass.cpp?rev=224658&view=auto
==============================================================================
--- libcxx/trunk/test/std/experimental/optional/optional.nullops/greater_equal.pass.cpp (added)
+++ libcxx/trunk/test/std/experimental/optional/optional.nullops/greater_equal.pass.cpp Fri Dec 19 19:40:03 2014
@@ -0,0 +1,41 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+
+// <optional>
+
+// template <class T> constexpr bool operator>=(const optional<T>& x, nullopt_t) noexcept;
+// template <class T> constexpr bool operator>=(nullopt_t, const optional<T>& x) noexcept;
+
+#include <experimental/optional>
+
+int main()
+{
+#if _LIBCPP_STD_VER > 11
+    using std::experimental::optional;
+    using std::experimental::nullopt_t;
+    using std::experimental::nullopt;
+
+    {
+    typedef int T;
+    typedef optional<T> O;
+    
+    constexpr O o1;     // disengaged
+    constexpr O o2{1};  // engaged
+
+    static_assert (  (nullopt >= o1), "" );
+    static_assert ( !(nullopt >= o2), "" );
+    static_assert (  (o1 >= nullopt), "" );
+    static_assert (  (o2 >= nullopt), "" );
+
+    static_assert (noexcept(nullopt >= o1), "");
+    static_assert (noexcept(o1 >= nullopt), "");
+    }
+#endif
+}

Added: libcxx/trunk/test/std/experimental/optional/optional.nullops/less_equal.pass.cpp
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/test/std/experimental/optional/optional.nullops/less_equal.pass.cpp?rev=224658&view=auto
==============================================================================
--- libcxx/trunk/test/std/experimental/optional/optional.nullops/less_equal.pass.cpp (added)
+++ libcxx/trunk/test/std/experimental/optional/optional.nullops/less_equal.pass.cpp Fri Dec 19 19:40:03 2014
@@ -0,0 +1,41 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+
+// <optional>
+
+// template <class T> constexpr bool operator<=(const optional<T>& x, nullopt_t) noexcept;
+// template <class T> constexpr bool operator<=(nullopt_t, const optional<T>& x) noexcept;
+
+#include <experimental/optional>
+
+int main()
+{
+#if _LIBCPP_STD_VER > 11
+    using std::experimental::optional;
+    using std::experimental::nullopt_t;
+    using std::experimental::nullopt;
+
+    {
+    typedef int T;
+    typedef optional<T> O;
+    
+    constexpr O o1;     // disengaged
+    constexpr O o2{1};  // engaged
+
+    static_assert (  (nullopt <= o1), "" );
+    static_assert (  (nullopt <= o2), "" );
+    static_assert (  (o1 <= nullopt), "" );
+    static_assert ( !(o2 <= nullopt), "" );
+
+    static_assert (noexcept(nullopt <= o1), "");
+    static_assert (noexcept(o1 <= nullopt), "");
+    }
+#endif
+}

Added: libcxx/trunk/test/std/experimental/optional/optional.nullops/less_than.pass.cpp
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/test/std/experimental/optional/optional.nullops/less_than.pass.cpp?rev=224658&view=auto
==============================================================================
--- libcxx/trunk/test/std/experimental/optional/optional.nullops/less_than.pass.cpp (added)
+++ libcxx/trunk/test/std/experimental/optional/optional.nullops/less_than.pass.cpp Fri Dec 19 19:40:03 2014
@@ -0,0 +1,41 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+
+// <optional>
+
+// template <class T> constexpr bool operator<(const optional<T>& x, nullopt_t) noexcept;
+// template <class T> constexpr bool operator<(nullopt_t, const optional<T>& x) noexcept;
+
+#include <experimental/optional>
+
+int main()
+{
+#if _LIBCPP_STD_VER > 11
+    using std::experimental::optional;
+    using std::experimental::nullopt_t;
+    using std::experimental::nullopt;
+
+    {
+    typedef int T;
+    typedef optional<T> O;
+    
+    constexpr O o1;     // disengaged
+    constexpr O o2{1};  // engaged
+
+    static_assert ( !(nullopt < o1), "" );
+    static_assert (  (nullopt < o2), "" );
+    static_assert ( !(o1 < nullopt), "" );
+    static_assert ( !(o2 < nullopt), "" );
+
+    static_assert (noexcept(nullopt < o1), "");
+    static_assert (noexcept(o1 < nullopt), "");
+    }
+#endif
+}

Added: libcxx/trunk/test/std/experimental/optional/optional.nullops/not_equal.pass.cpp
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/test/std/experimental/optional/optional.nullops/not_equal.pass.cpp?rev=224658&view=auto
==============================================================================
--- libcxx/trunk/test/std/experimental/optional/optional.nullops/not_equal.pass.cpp (added)
+++ libcxx/trunk/test/std/experimental/optional/optional.nullops/not_equal.pass.cpp Fri Dec 19 19:40:03 2014
@@ -0,0 +1,41 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+
+// <optional>
+
+// template <class T> constexpr bool operator!=(const optional<T>& x, nullopt_t) noexcept;
+// template <class T> constexpr bool operator!=(nullopt_t, const optional<T>& x) noexcept;
+
+#include <experimental/optional>
+
+int main()
+{
+#if _LIBCPP_STD_VER > 11
+    using std::experimental::optional;
+    using std::experimental::nullopt_t;
+    using std::experimental::nullopt;
+    
+    {
+    typedef int T;
+    typedef optional<T> O;
+    
+    constexpr O o1;     // disengaged
+    constexpr O o2{1};  // engaged
+
+    static_assert ( !(nullopt != o1), "" );
+    static_assert (  (nullopt != o2), "" );
+    static_assert ( !(o1 != nullopt), "" );
+    static_assert (  (o2 != nullopt), "" );
+
+    static_assert (noexcept(nullopt != o1), "");
+    static_assert (noexcept(o1 != nullopt), "");
+    }
+#endif
+}

Added: libcxx/trunk/test/std/experimental/optional/optional.nullopt/nullopt_t.pass.cpp
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/test/std/experimental/optional/optional.nullopt/nullopt_t.pass.cpp?rev=224658&view=auto
==============================================================================
--- libcxx/trunk/test/std/experimental/optional/optional.nullopt/nullopt_t.pass.cpp (added)
+++ libcxx/trunk/test/std/experimental/optional/optional.nullopt/nullopt_t.pass.cpp Fri Dec 19 19:40:03 2014
@@ -0,0 +1,43 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <optional>
+
+// struct nullopt_t{see below};
+// constexpr nullopt_t nullopt(unspecified);
+
+#include <experimental/optional>
+#include <type_traits>
+
+#if _LIBCPP_STD_VER > 11
+
+using std::experimental::optional;
+using std::experimental::nullopt_t;
+using std::experimental::nullopt;
+
+constexpr
+int
+test(const nullopt_t&)
+{
+    return 3;
+}
+
+#endif
+
+int main()
+{
+#if _LIBCPP_STD_VER > 11
+    static_assert((std::is_class<nullopt_t>::value), "");
+    static_assert((std::is_empty<nullopt_t>::value), "");
+    static_assert((std::is_literal_type<nullopt_t>::value), "");
+    static_assert((!std::is_default_constructible<nullopt_t>::value), "");
+    
+    static_assert(test(nullopt) == 3, "");
+#endif
+}

Added: libcxx/trunk/test/std/experimental/optional/optional.object/optional.object.assign/assign_value.pass.cpp
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/test/std/experimental/optional/optional.object/optional.object.assign/assign_value.pass.cpp?rev=224658&view=auto
==============================================================================
--- libcxx/trunk/test/std/experimental/optional/optional.object/optional.object.assign/assign_value.pass.cpp (added)
+++ libcxx/trunk/test/std/experimental/optional/optional.object/optional.object.assign/assign_value.pass.cpp Fri Dec 19 19:40:03 2014
@@ -0,0 +1,72 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <optional>
+
+// template <class U> optional<T>& operator=(U&& v);
+
+#include <experimental/optional>
+#include <type_traits>
+#include <cassert>
+#include <memory>
+
+#if _LIBCPP_STD_VER > 11
+
+using std::experimental::optional;
+
+struct X
+{
+};
+
+#endif  // _LIBCPP_STD_VER > 11
+
+int main()
+{
+#if _LIBCPP_STD_VER > 11
+    static_assert(std::is_assignable<optional<int>, int>::value, "");
+    static_assert(std::is_assignable<optional<int>, int&>::value, "");
+    static_assert(std::is_assignable<optional<int>&, int>::value, "");
+    static_assert(std::is_assignable<optional<int>&, int&>::value, "");
+    static_assert(std::is_assignable<optional<int>&, const int&>::value, "");
+    static_assert(!std::is_assignable<const optional<int>&, const int&>::value, "");
+    static_assert(!std::is_assignable<optional<int>, X>::value, "");
+    {
+        optional<int> opt;
+        opt = 1;
+        assert(static_cast<bool>(opt) == true);
+        assert(*opt == 1);
+    }
+    {
+        optional<int> opt;
+        const int i = 2;
+        opt = i;
+        assert(static_cast<bool>(opt) == true);
+        assert(*opt == i);
+    }
+    {
+        optional<int> opt(3);
+        const int i = 2;
+        opt = i;
+        assert(static_cast<bool>(opt) == true);
+        assert(*opt == i);
+    }
+    {
+        optional<std::unique_ptr<int>> opt;
+        opt = std::unique_ptr<int>(new int(3));
+        assert(static_cast<bool>(opt) == true);
+        assert(**opt == 3);
+    }
+    {
+        optional<std::unique_ptr<int>> opt(std::unique_ptr<int>(new int(2)));
+        opt = std::unique_ptr<int>(new int(3));
+        assert(static_cast<bool>(opt) == true);
+        assert(**opt == 3);
+    }
+#endif  // _LIBCPP_STD_VER > 11
+}

Added: libcxx/trunk/test/std/experimental/optional/optional.object/optional.object.assign/copy.pass.cpp
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/test/std/experimental/optional/optional.object/optional.object.assign/copy.pass.cpp?rev=224658&view=auto
==============================================================================
--- libcxx/trunk/test/std/experimental/optional/optional.object/optional.object.assign/copy.pass.cpp (added)
+++ libcxx/trunk/test/std/experimental/optional/optional.object/optional.object.assign/copy.pass.cpp Fri Dec 19 19:40:03 2014
@@ -0,0 +1,90 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <optional>
+
+// optional<T>& operator=(const optional<T>& rhs);
+
+#include <experimental/optional>
+#include <type_traits>
+#include <cassert>
+
+#if _LIBCPP_STD_VER > 11
+
+using std::experimental::optional;
+
+struct X
+{
+    static bool throw_now;
+
+    X() = default;
+    X(const X&)
+    {
+        if (throw_now)
+            throw 6;
+    }
+};
+
+bool X::throw_now = false;
+
+#endif  // _LIBCPP_STD_VER > 11
+
+int main()
+{
+#if _LIBCPP_STD_VER > 11
+    {
+        optional<int> opt;
+        constexpr optional<int> opt2;
+        opt = opt2;
+        static_assert(static_cast<bool>(opt2) == false, "");
+        assert(static_cast<bool>(opt) == static_cast<bool>(opt2));
+    }
+    {
+        optional<int> opt;
+        constexpr optional<int> opt2(2);
+        opt = opt2;
+        static_assert(static_cast<bool>(opt2) == true, "");
+        static_assert(*opt2 == 2, "");
+        assert(static_cast<bool>(opt) == static_cast<bool>(opt2));
+        assert(*opt == *opt2);
+    }
+    {
+        optional<int> opt(3);
+        constexpr optional<int> opt2;
+        opt = opt2;
+        static_assert(static_cast<bool>(opt2) == false, "");
+        assert(static_cast<bool>(opt) == static_cast<bool>(opt2));
+    }
+    {
+        optional<int> opt(3);
+        constexpr optional<int> opt2(2);
+        opt = opt2;
+        static_assert(static_cast<bool>(opt2) == true, "");
+        static_assert(*opt2 == 2, "");
+        assert(static_cast<bool>(opt) == static_cast<bool>(opt2));
+        assert(*opt == *opt2);
+    }
+    {
+        optional<X> opt;
+        optional<X> opt2(X{});
+        assert(static_cast<bool>(opt2) == true);
+        try
+        {
+            X::throw_now = true;
+            opt = opt2;
+            assert(false);
+        }
+        catch (int i)
+        {
+            assert(i == 6);
+            assert(static_cast<bool>(opt) == false);
+        }
+    }
+#endif  // _LIBCPP_STD_VER > 11
+}

Added: libcxx/trunk/test/std/experimental/optional/optional.object/optional.object.assign/emplace.pass.cpp
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/test/std/experimental/optional/optional.object/optional.object.assign/emplace.pass.cpp?rev=224658&view=auto
==============================================================================
--- libcxx/trunk/test/std/experimental/optional/optional.object/optional.object.assign/emplace.pass.cpp (added)
+++ libcxx/trunk/test/std/experimental/optional/optional.object/optional.object.assign/emplace.pass.cpp Fri Dec 19 19:40:03 2014
@@ -0,0 +1,148 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <optional>
+
+// template <class... Args> void optional<T>::emplace(Args&&... args);
+
+#include <experimental/optional>
+#include <type_traits>
+#include <cassert>
+#include <memory>
+
+#if _LIBCPP_STD_VER > 11
+
+using std::experimental::optional;
+
+class X
+{
+    int i_;
+    int j_ = 0;
+public:
+    X() : i_(0) {}
+    X(int i) : i_(i) {}
+    X(int i, int j) : i_(i), j_(j) {}
+
+    friend bool operator==(const X& x, const X& y)
+        {return x.i_ == y.i_ && x.j_ == y.j_;}
+};
+
+class Y
+{
+public:
+    static bool dtor_called;
+    Y() = default;
+    ~Y() {dtor_called = true;}
+};
+
+bool Y::dtor_called = false;
+
+class Z
+{
+public:
+    static bool dtor_called;
+    Z() = default;
+    Z(int) {throw 6;}
+    ~Z() {dtor_called = true;}
+};
+
+bool Z::dtor_called = false;
+
+#endif  // _LIBCPP_STD_VER > 11
+
+int main()
+{
+#if _LIBCPP_STD_VER > 11
+    {
+        optional<int> opt;
+        opt.emplace();
+        assert(static_cast<bool>(opt) == true);
+        assert(*opt == 0);
+    }
+    {
+        optional<int> opt;
+        opt.emplace(1);
+        assert(static_cast<bool>(opt) == true);
+        assert(*opt == 1);
+    }
+    {
+        optional<int> opt(2);
+        opt.emplace();
+        assert(static_cast<bool>(opt) == true);
+        assert(*opt == 0);
+    }
+    {
+        optional<int> opt(2);
+        opt.emplace(1);
+        assert(static_cast<bool>(opt) == true);
+        assert(*opt == 1);
+    }
+    {
+        optional<X> opt;
+        opt.emplace();
+        assert(static_cast<bool>(opt) == true);
+        assert(*opt == X());
+    }
+    {
+        optional<X> opt;
+        opt.emplace(1);
+        assert(static_cast<bool>(opt) == true);
+        assert(*opt == X(1));
+    }
+    {
+        optional<X> opt;
+        opt.emplace(1, 2);
+        assert(static_cast<bool>(opt) == true);
+        assert(*opt == X(1, 2));
+    }
+    {
+        optional<X> opt(X{3});
+        opt.emplace();
+        assert(static_cast<bool>(opt) == true);
+        assert(*opt == X());
+    }
+    {
+        optional<X> opt(X{3});
+        opt.emplace(1);
+        assert(static_cast<bool>(opt) == true);
+        assert(*opt == X(1));
+    }
+    {
+        optional<X> opt(X{3});
+        opt.emplace(1, 2);
+        assert(static_cast<bool>(opt) == true);
+        assert(*opt == X(1, 2));
+    }
+    {
+        Y y;
+        {
+            optional<Y> opt(y);
+            assert(Y::dtor_called == false);
+            opt.emplace();
+            assert(Y::dtor_called == true);
+        }
+    }
+    {
+        Z z;
+        optional<Z> opt(z);
+        try
+        {
+            assert(static_cast<bool>(opt) == true);
+            assert(Z::dtor_called == false);
+            opt.emplace(1);
+        }
+        catch (int i)
+        {
+            assert(i == 6);
+            assert(static_cast<bool>(opt) == false);
+            assert(Z::dtor_called == true);
+        }
+    }
+#endif  // _LIBCPP_STD_VER > 11
+}

Added: libcxx/trunk/test/std/experimental/optional/optional.object/optional.object.assign/emplace_initializer_list.pass.cpp
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/test/std/experimental/optional/optional.object/optional.object.assign/emplace_initializer_list.pass.cpp?rev=224658&view=auto
==============================================================================
--- libcxx/trunk/test/std/experimental/optional/optional.object/optional.object.assign/emplace_initializer_list.pass.cpp (added)
+++ libcxx/trunk/test/std/experimental/optional/optional.object/optional.object.assign/emplace_initializer_list.pass.cpp Fri Dec 19 19:40:03 2014
@@ -0,0 +1,116 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <optional>
+
+// template <class U, class... Args>
+//   void optional<T>::emplace(initializer_list<U> il, Args&&... args);
+
+#include <experimental/optional>
+#include <type_traits>
+#include <cassert>
+#include <vector>
+
+#if _LIBCPP_STD_VER > 11
+
+using std::experimental::optional;
+
+class X
+{
+    int i_;
+    int j_ = 0;
+public:
+    static bool dtor_called;
+    constexpr X() : i_(0) {}
+    constexpr X(int i) : i_(i) {}
+    constexpr X(std::initializer_list<int> il) : i_(il.begin()[0]), j_(il.begin()[1]) {}
+    ~X() {dtor_called = true;}
+
+    friend constexpr bool operator==(const X& x, const X& y)
+        {return x.i_ == y.i_ && x.j_ == y.j_;}
+};
+
+bool X::dtor_called = false;
+
+class Y
+{
+    int i_;
+    int j_ = 0;
+public:
+    constexpr Y() : i_(0) {}
+    constexpr Y(int i) : i_(i) {}
+    constexpr Y(std::initializer_list<int> il) : i_(il.begin()[0]), j_(il.begin()[1]) {}
+
+    friend constexpr bool operator==(const Y& x, const Y& y)
+        {return x.i_ == y.i_ && x.j_ == y.j_;}
+};
+
+class Z
+{
+    int i_;
+    int j_ = 0;
+public:
+    static bool dtor_called;
+    constexpr Z() : i_(0) {}
+    constexpr Z(int i) : i_(i) {}
+    constexpr Z(std::initializer_list<int> il) : i_(il.begin()[0]), j_(il.begin()[1])
+        {throw 6;}
+    ~Z() {dtor_called = true;}
+
+    friend constexpr bool operator==(const Z& x, const Z& y)
+        {return x.i_ == y.i_ && x.j_ == y.j_;}
+};
+
+bool Z::dtor_called = false;
+
+#endif  // _LIBCPP_STD_VER > 11
+
+int main()
+{
+#if _LIBCPP_STD_VER > 11
+    {
+        X x;
+        {
+            optional<X> opt(x);
+            assert(X::dtor_called == false);
+            opt.emplace({1, 2});
+            assert(X::dtor_called == true);
+            assert(*opt == X({1, 2}));
+        }
+    }
+    {
+        optional<std::vector<int>> opt;
+        opt.emplace({1, 2, 3}, std::allocator<int>());
+        assert(static_cast<bool>(opt) == true);
+        assert(*opt == std::vector<int>({1, 2, 3}));
+    }
+    {
+        optional<Y> opt;
+        opt.emplace({1, 2});
+        assert(static_cast<bool>(opt) == true);
+        assert(*opt == Y({1, 2}));
+    }
+    {
+        Z z;
+        optional<Z> opt(z);
+        try
+        {
+            assert(static_cast<bool>(opt) == true);
+            assert(Z::dtor_called == false);
+            opt.emplace({1, 2});
+        }
+        catch (int i)
+        {
+            assert(i == 6);
+            assert(static_cast<bool>(opt) == false);
+            assert(Z::dtor_called == true);
+        }
+    }
+#endif  // _LIBCPP_STD_VER > 11
+}

Added: libcxx/trunk/test/std/experimental/optional/optional.object/optional.object.assign/move.pass.cpp
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/test/std/experimental/optional/optional.object/optional.object.assign/move.pass.cpp?rev=224658&view=auto
==============================================================================
--- libcxx/trunk/test/std/experimental/optional/optional.object/optional.object.assign/move.pass.cpp (added)
+++ libcxx/trunk/test/std/experimental/optional/optional.object/optional.object.assign/move.pass.cpp Fri Dec 19 19:40:03 2014
@@ -0,0 +1,103 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <optional>
+
+// optional<T>& operator=(optional<T>&& rhs)
+//     noexcept(is_nothrow_move_assignable<T>::value &&
+//              is_nothrow_move_constructible<T>::value);
+
+#include <experimental/optional>
+#include <type_traits>
+#include <cassert>
+
+#if _LIBCPP_STD_VER > 11
+
+using std::experimental::optional;
+
+struct X
+{
+    static bool throw_now;
+
+    X() = default;
+    X(X&&)
+    {
+        if (throw_now)
+            throw 6;
+    }
+    X& operator=(X&&) noexcept
+    {
+        return *this;
+    }
+};
+
+struct Y {};
+
+bool X::throw_now = false;
+
+#endif  // _LIBCPP_STD_VER > 11
+
+int main()
+{
+#if _LIBCPP_STD_VER > 11
+    {
+        static_assert(std::is_nothrow_move_assignable<optional<int>>::value, "");
+        optional<int> opt;
+        constexpr optional<int> opt2;
+        opt = std::move(opt2);
+        static_assert(static_cast<bool>(opt2) == false, "");
+        assert(static_cast<bool>(opt) == static_cast<bool>(opt2));
+    }
+    {
+        optional<int> opt;
+        constexpr optional<int> opt2(2);
+        opt = std::move(opt2);
+        static_assert(static_cast<bool>(opt2) == true, "");
+        static_assert(*opt2 == 2, "");
+        assert(static_cast<bool>(opt) == static_cast<bool>(opt2));
+        assert(*opt == *opt2);
+    }
+    {
+        optional<int> opt(3);
+        constexpr optional<int> opt2;
+        opt = std::move(opt2);
+        static_assert(static_cast<bool>(opt2) == false, "");
+        assert(static_cast<bool>(opt) == static_cast<bool>(opt2));
+    }
+    {
+        optional<int> opt(3);
+        constexpr optional<int> opt2(2);
+        opt = std::move(opt2);
+        static_assert(static_cast<bool>(opt2) == true, "");
+        static_assert(*opt2 == 2, "");
+        assert(static_cast<bool>(opt) == static_cast<bool>(opt2));
+        assert(*opt == *opt2);
+    }
+    {
+        static_assert(!std::is_nothrow_move_assignable<optional<X>>::value, "");
+        optional<X> opt;
+        optional<X> opt2(X{});
+        assert(static_cast<bool>(opt2) == true);
+        try
+        {
+            X::throw_now = true;
+            opt = std::move(opt2);
+            assert(false);
+        }
+        catch (int i)
+        {
+            assert(i == 6);
+            assert(static_cast<bool>(opt) == false);
+        }
+    }
+    {
+        static_assert(std::is_nothrow_move_assignable<optional<Y>>::value, "");
+    }
+#endif  // _LIBCPP_STD_VER > 11
+}

Added: libcxx/trunk/test/std/experimental/optional/optional.object/optional.object.assign/nullopt_t.pass.cpp
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/test/std/experimental/optional/optional.object/optional.object.assign/nullopt_t.pass.cpp?rev=224658&view=auto
==============================================================================
--- libcxx/trunk/test/std/experimental/optional/optional.object/optional.object.assign/nullopt_t.pass.cpp (added)
+++ libcxx/trunk/test/std/experimental/optional/optional.object/optional.object.assign/nullopt_t.pass.cpp Fri Dec 19 19:40:03 2014
@@ -0,0 +1,67 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <optional>
+
+// optional<T>& operator=(nullopt_t) noexcept;
+
+#include <experimental/optional>
+#include <type_traits>
+#include <cassert>
+
+#if _LIBCPP_STD_VER > 11
+
+using std::experimental::optional;
+using std::experimental::nullopt_t;
+using std::experimental::nullopt;
+
+struct X
+{
+    static bool dtor_called;
+    ~X() {dtor_called = true;}
+};
+
+bool X::dtor_called = false;
+
+#endif  // _LIBCPP_STD_VER > 11
+
+int main()
+{
+#if _LIBCPP_STD_VER > 11
+    {
+        optional<int> opt;
+        static_assert(noexcept(opt = nullopt) == true, "");
+        opt = nullopt;
+        assert(static_cast<bool>(opt) == false);
+    }
+    {
+        optional<int> opt(3);
+        opt = nullopt;
+        assert(static_cast<bool>(opt) == false);
+    }
+    {
+        optional<X> opt;
+        static_assert(noexcept(opt = nullopt) == true, "");
+        assert(X::dtor_called == false);
+        opt = nullopt;
+        assert(X::dtor_called == false);
+        assert(static_cast<bool>(opt) == false);
+    }
+    {
+        X x;
+        {
+            optional<X> opt(x);
+            assert(X::dtor_called == false);
+            opt = nullopt;
+            assert(X::dtor_called == true);
+            assert(static_cast<bool>(opt) == false);
+        }
+    }
+#endif  // _LIBCPP_STD_VER > 11
+}

Added: libcxx/trunk/test/std/experimental/optional/optional.object/optional.object.ctor/const_T.pass.cpp
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/test/std/experimental/optional/optional.object/optional.object.ctor/const_T.pass.cpp?rev=224658&view=auto
==============================================================================
--- libcxx/trunk/test/std/experimental/optional/optional.object/optional.object.ctor/const_T.pass.cpp (added)
+++ libcxx/trunk/test/std/experimental/optional/optional.object/optional.object.ctor/const_T.pass.cpp Fri Dec 19 19:40:03 2014
@@ -0,0 +1,117 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <optional>
+
+// constexpr optional(const T& v);
+
+#include <experimental/optional>
+#include <type_traits>
+#include <cassert>
+
+#if _LIBCPP_STD_VER > 11
+
+using std::experimental::optional;
+
+class X
+{
+    int i_;
+public:
+    X(int i) : i_(i) {}
+
+    friend bool operator==(const X& x, const X& y) {return x.i_ == y.i_;}
+};
+
+class Y
+{
+    int i_;
+public:
+    constexpr Y(int i) : i_(i) {}
+
+    friend constexpr bool operator==(const Y& x, const Y& y) {return x.i_ == y.i_;}
+};
+
+class Z
+{
+    int i_;
+public:
+    Z(int i) : i_(i) {}
+    Z(const Z&) {throw 6;}
+};
+
+
+#endif  // _LIBCPP_STD_VER > 11
+
+int main()
+{
+#if _LIBCPP_STD_VER > 11
+    {
+        typedef int T;
+        constexpr T t(5);
+        constexpr optional<T> opt(t);
+        static_assert(static_cast<bool>(opt) == true, "");
+        static_assert(*opt == 5, "");
+
+        struct test_constexpr_ctor
+            : public optional<T>
+        {
+            constexpr test_constexpr_ctor(const T&) {}
+        };
+
+    }
+    {
+        typedef double T;
+        constexpr T t(3);
+        constexpr optional<T> opt(t);
+        static_assert(static_cast<bool>(opt) == true, "");
+        static_assert(*opt == 3, "");
+
+        struct test_constexpr_ctor
+            : public optional<T>
+        {
+            constexpr test_constexpr_ctor(const T&) {}
+        };
+
+    }
+    {
+        typedef X T;
+        const T t(3);
+        optional<T> opt(t);
+        assert(static_cast<bool>(opt) == true);
+        assert(*opt == 3);
+    }
+    {
+        typedef Y T;
+        constexpr T t(3);
+        constexpr optional<T> opt(t);
+        static_assert(static_cast<bool>(opt) == true, "");
+        static_assert(*opt == 3, "");
+
+        struct test_constexpr_ctor
+            : public optional<T>
+        {
+            constexpr test_constexpr_ctor(const T&) {}
+        };
+
+    }
+    {
+        typedef Z T;
+        try
+        {
+            const T t(3);
+            optional<T> opt(t);
+            assert(false);
+        }
+        catch (int i)
+        {
+            assert(i == 6);
+        }
+    }
+#endif  // _LIBCPP_STD_VER > 11
+}

Added: libcxx/trunk/test/std/experimental/optional/optional.object/optional.object.ctor/copy.pass.cpp
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/test/std/experimental/optional/optional.object/optional.object.ctor/copy.pass.cpp?rev=224658&view=auto
==============================================================================
--- libcxx/trunk/test/std/experimental/optional/optional.object/optional.object.ctor/copy.pass.cpp (added)
+++ libcxx/trunk/test/std/experimental/optional/optional.object/optional.object.ctor/copy.pass.cpp Fri Dec 19 19:40:03 2014
@@ -0,0 +1,124 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <optional>
+
+// optional(const optional<T>& rhs);
+
+#include <experimental/optional>
+#include <type_traits>
+#include <cassert>
+
+#if _LIBCPP_STD_VER > 11
+
+using std::experimental::optional;
+
+template <class T>
+void
+test(const optional<T>& rhs, bool is_going_to_throw = false)
+{
+    bool rhs_engaged = static_cast<bool>(rhs);
+    try
+    {
+        optional<T> lhs = rhs;
+        assert(is_going_to_throw == false);
+        assert(static_cast<bool>(lhs) == rhs_engaged);
+        if (rhs_engaged)
+            assert(*lhs == *rhs);
+    }
+    catch (int i)
+    {
+        assert(i == 6);
+    }
+}
+
+class X
+{
+    int i_;
+public:
+    X(int i) : i_(i) {}
+    X(const X& x) : i_(x.i_) {}
+    ~X() {i_ = 0;}
+    friend bool operator==(const X& x, const X& y) {return x.i_ == y.i_;}
+};
+
+class Y
+{
+    int i_;
+public:
+    Y(int i) : i_(i) {}
+    Y(const Y& x) : i_(x.i_) {}
+
+    friend constexpr bool operator==(const Y& x, const Y& y) {return x.i_ == y.i_;}
+};
+
+int count = 0;
+
+class Z
+{
+    int i_;
+public:
+    Z(int i) : i_(i) {}
+    Z(const Z&)
+    {
+        if (++count == 2)
+            throw 6;
+    }
+
+    friend constexpr bool operator==(const Z& x, const Z& y) {return x.i_ == y.i_;}
+};
+
+
+#endif  // _LIBCPP_STD_VER > 11
+
+int main()
+{
+#if _LIBCPP_STD_VER > 11
+    {
+        typedef int T;
+        optional<T> rhs;
+        test(rhs);
+    }
+    {
+        typedef int T;
+        optional<T> rhs(3);
+        test(rhs);
+    }
+    {
+        typedef X T;
+        optional<T> rhs;
+        test(rhs);
+    }
+    {
+        typedef X T;
+        optional<T> rhs(X(3));
+        test(rhs);
+    }
+    {
+        typedef Y T;
+        optional<T> rhs;
+        test(rhs);
+    }
+    {
+        typedef Y T;
+        optional<T> rhs(Y(3));
+        test(rhs);
+    }
+    {
+        typedef Z T;
+        optional<T> rhs;
+        test(rhs);
+    }
+    {
+        typedef Z T;
+        optional<T> rhs(Z(3));
+        test(rhs, true);
+    }
+#endif  // _LIBCPP_STD_VER > 11
+}

Added: libcxx/trunk/test/std/experimental/optional/optional.object/optional.object.ctor/default.pass.cpp
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/test/std/experimental/optional/optional.object/optional.object.ctor/default.pass.cpp?rev=224658&view=auto
==============================================================================
--- libcxx/trunk/test/std/experimental/optional/optional.object/optional.object.ctor/default.pass.cpp (added)
+++ libcxx/trunk/test/std/experimental/optional/optional.object/optional.object.ctor/default.pass.cpp Fri Dec 19 19:40:03 2014
@@ -0,0 +1,67 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <optional>
+
+// constexpr optional() noexcept;
+
+#include <experimental/optional>
+#include <type_traits>
+#include <cassert>
+
+#if _LIBCPP_STD_VER > 11
+
+using std::experimental::optional;
+
+template <class Opt>
+void
+test_constexpr()
+{
+    static_assert(std::is_nothrow_default_constructible<Opt>::value, "");
+    constexpr Opt opt;
+    static_assert(static_cast<bool>(opt) == false, "");
+
+    struct test_constexpr_ctor
+        : public Opt
+    {
+        constexpr test_constexpr_ctor() {}
+    };
+
+}
+
+template <class Opt>
+void
+test()
+{
+    static_assert(std::is_nothrow_default_constructible<Opt>::value, "");
+    Opt opt;
+    assert(static_cast<bool>(opt) == false);
+
+    struct test_constexpr_ctor
+        : public Opt
+    {
+        constexpr test_constexpr_ctor() {}
+    };
+}
+
+struct X
+{
+    X();
+};
+
+#endif  // _LIBCPP_STD_VER > 11
+
+int main()
+{
+#if _LIBCPP_STD_VER > 11
+    test_constexpr<optional<int>>();
+    test_constexpr<optional<int*>>();
+    test<optional<X>>();
+#endif  // _LIBCPP_STD_VER > 11
+}

Added: libcxx/trunk/test/std/experimental/optional/optional.object/optional.object.ctor/in_place_t.pass.cpp
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/test/std/experimental/optional/optional.object/optional.object.ctor/in_place_t.pass.cpp?rev=224658&view=auto
==============================================================================
--- libcxx/trunk/test/std/experimental/optional/optional.object/optional.object.ctor/in_place_t.pass.cpp (added)
+++ libcxx/trunk/test/std/experimental/optional/optional.object/optional.object.ctor/in_place_t.pass.cpp Fri Dec 19 19:40:03 2014
@@ -0,0 +1,145 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <optional>
+
+// template <class... Args>
+//   constexpr explicit optional(in_place_t, Args&&... args);
+
+#include <experimental/optional>
+#include <type_traits>
+#include <cassert>
+
+#if _LIBCPP_STD_VER > 11
+
+using std::experimental::optional;
+using std::experimental::in_place_t;
+using std::experimental::in_place;
+
+class X
+{
+    int i_;
+    int j_ = 0;
+public:
+    X() : i_(0) {}
+    X(int i) : i_(i) {}
+    X(int i, int j) : i_(i), j_(j) {}
+
+    ~X() {}
+
+    friend bool operator==(const X& x, const X& y)
+        {return x.i_ == y.i_ && x.j_ == y.j_;}
+};
+
+class Y
+{
+    int i_;
+    int j_ = 0;
+public:
+    constexpr Y() : i_(0) {}
+    constexpr Y(int i) : i_(i) {}
+    constexpr Y(int i, int j) : i_(i), j_(j) {}
+
+    friend constexpr bool operator==(const Y& x, const Y& y)
+        {return x.i_ == y.i_ && x.j_ == y.j_;}
+};
+
+class Z
+{
+    int i_;
+public:
+    Z(int i) : i_(i) {throw 6;}
+};
+
+
+#endif  // _LIBCPP_STD_VER > 11
+
+int main()
+{
+#if _LIBCPP_STD_VER > 11
+    {
+        constexpr optional<int> opt(in_place, 5);
+        static_assert(static_cast<bool>(opt) == true, "");
+        static_assert(*opt == 5, "");
+
+        struct test_constexpr_ctor
+            : public optional<int>
+        {
+            constexpr test_constexpr_ctor(in_place_t, int i) 
+                : optional<int>(in_place, i) {}
+        };
+
+    }
+    {
+        const optional<X> opt(in_place);
+        assert(static_cast<bool>(opt) == true);
+        assert(*opt == X());
+    }
+    {
+        const optional<X> opt(in_place, 5);
+        assert(static_cast<bool>(opt) == true);
+        assert(*opt == X(5));
+    }
+    {
+        const optional<X> opt(in_place, 5, 4);
+        assert(static_cast<bool>(opt) == true);
+        assert(*opt == X(5, 4));
+    }
+    {
+        constexpr optional<Y> opt(in_place);
+        static_assert(static_cast<bool>(opt) == true, "");
+        static_assert(*opt == Y(), "");
+
+        struct test_constexpr_ctor
+            : public optional<Y>
+        {
+            constexpr test_constexpr_ctor(in_place_t) 
+                : optional<Y>(in_place) {}
+        };
+
+    }
+    {
+        constexpr optional<Y> opt(in_place, 5);
+        static_assert(static_cast<bool>(opt) == true, "");
+        static_assert(*opt == Y(5), "");
+
+        struct test_constexpr_ctor
+            : public optional<Y>
+        {
+            constexpr test_constexpr_ctor(in_place_t, int i) 
+                : optional<Y>(in_place, i) {}
+        };
+
+    }
+    {
+        constexpr optional<Y> opt(in_place, 5, 4);
+        static_assert(static_cast<bool>(opt) == true, "");
+        static_assert(*opt == Y(5, 4), "");
+
+        struct test_constexpr_ctor
+            : public optional<Y>
+        {
+            constexpr test_constexpr_ctor(in_place_t, int i, int j) 
+                : optional<Y>(in_place, i, j) {}
+        };
+
+    }
+    {
+        try
+        {
+            const optional<Z> opt(in_place, 1);
+            assert(false);
+        }
+        catch (int i)
+        {
+            assert(i == 6);
+        }
+    }
+#endif  // _LIBCPP_STD_VER > 11
+}

Added: libcxx/trunk/test/std/experimental/optional/optional.object/optional.object.ctor/initializer_list.pass.cpp
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/test/std/experimental/optional/optional.object/optional.object.ctor/initializer_list.pass.cpp?rev=224658&view=auto
==============================================================================
--- libcxx/trunk/test/std/experimental/optional/optional.object/optional.object.ctor/initializer_list.pass.cpp (added)
+++ libcxx/trunk/test/std/experimental/optional/optional.object/optional.object.ctor/initializer_list.pass.cpp Fri Dec 19 19:40:03 2014
@@ -0,0 +1,126 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <optional>
+
+// template <class U, class... Args>
+//     constexpr
+//     explicit optional(in_place_t, initializer_list<U> il, Args&&... args);
+
+#include <experimental/optional>
+#include <type_traits>
+#include <vector>
+#include <cassert>
+
+#if _LIBCPP_STD_VER > 11
+
+using std::experimental::optional;
+using std::experimental::in_place_t;
+using std::experimental::in_place;
+
+class X
+{
+    int i_;
+    int j_ = 0;
+public:
+    X() : i_(0) {}
+    X(int i) : i_(i) {}
+    X(int i, int j) : i_(i), j_(j) {}
+
+    ~X() {}
+
+    friend bool operator==(const X& x, const X& y)
+        {return x.i_ == y.i_ && x.j_ == y.j_;}
+};
+
+class Y
+{
+    int i_;
+    int j_ = 0;
+public:
+    constexpr Y() : i_(0) {}
+    constexpr Y(int i) : i_(i) {}
+    constexpr Y(std::initializer_list<int> il) : i_(il.begin()[0]), j_(il.begin()[1]) {}
+
+    friend constexpr bool operator==(const Y& x, const Y& y)
+        {return x.i_ == y.i_ && x.j_ == y.j_;}
+};
+
+class Z
+{
+    int i_;
+    int j_ = 0;
+public:
+    constexpr Z() : i_(0) {}
+    constexpr Z(int i) : i_(i) {}
+    constexpr Z(std::initializer_list<int> il) : i_(il.begin()[0]), j_(il.begin()[1])
+        {throw 6;}
+
+    friend constexpr bool operator==(const Z& x, const Z& y)
+        {return x.i_ == y.i_ && x.j_ == y.j_;}
+};
+
+
+#endif  // _LIBCPP_STD_VER > 11
+
+int main()
+{
+#if _LIBCPP_STD_VER > 11
+    {
+        static_assert(!std::is_constructible<X, std::initializer_list<int>&>::value, "");
+        static_assert(!std::is_constructible<optional<X>, std::initializer_list<int>&>::value, "");
+    }
+    {
+        optional<std::vector<int>> opt(in_place, {3, 1});
+        assert(static_cast<bool>(opt) == true);
+        assert((*opt == std::vector<int>{3, 1}));
+        assert(opt->size() == 2);
+    }
+    {
+        optional<std::vector<int>> opt(in_place, {3, 1}, std::allocator<int>());
+        assert(static_cast<bool>(opt) == true);
+        assert((*opt == std::vector<int>{3, 1}));
+        assert(opt->size() == 2);
+    }
+    {
+        static_assert(std::is_constructible<optional<Y>, std::initializer_list<int>&>::value, "");
+        constexpr optional<Y> opt(in_place, {3, 1});
+        static_assert(static_cast<bool>(opt) == true, "");
+        static_assert(*opt == Y{3, 1}, "");
+
+        struct test_constexpr_ctor
+            : public optional<Y>
+        {
+            constexpr test_constexpr_ctor(in_place_t, std::initializer_list<int> i) 
+                : optional<Y>(in_place, i) {}
+        };
+
+    }
+    {
+        static_assert(std::is_constructible<optional<Z>, std::initializer_list<int>&>::value, "");
+        try
+        {
+            optional<Z> opt(in_place, {3, 1});
+            assert(false);
+        }
+        catch (int i)
+        {
+            assert(i == 6);
+        }
+
+        struct test_constexpr_ctor
+            : public optional<Z>
+        {
+            constexpr test_constexpr_ctor(in_place_t, std::initializer_list<int> i) 
+                : optional<Z>(in_place, i) {}
+        };
+
+    }
+#endif  // _LIBCPP_STD_VER > 11
+}

Added: libcxx/trunk/test/std/experimental/optional/optional.object/optional.object.ctor/move.pass.cpp
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/test/std/experimental/optional/optional.object/optional.object.ctor/move.pass.cpp?rev=224658&view=auto
==============================================================================
--- libcxx/trunk/test/std/experimental/optional/optional.object/optional.object.ctor/move.pass.cpp (added)
+++ libcxx/trunk/test/std/experimental/optional/optional.object/optional.object.ctor/move.pass.cpp Fri Dec 19 19:40:03 2014
@@ -0,0 +1,124 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <optional>
+
+// optional(optional<T>&& rhs) noexcept(is_nothrow_move_constructible<T>::value);
+
+#include <experimental/optional>
+#include <type_traits>
+#include <cassert>
+
+#if _LIBCPP_STD_VER > 11
+
+using std::experimental::optional;
+
+template <class T>
+void
+test(optional<T>& rhs, bool is_going_to_throw = false)
+{
+    static_assert(std::is_nothrow_move_constructible<optional<T>>::value ==
+                  std::is_nothrow_move_constructible<T>::value, "");
+    bool rhs_engaged = static_cast<bool>(rhs);
+    try
+    {
+        optional<T> lhs = std::move(rhs);
+        assert(is_going_to_throw == false);
+        assert(static_cast<bool>(lhs) == rhs_engaged);
+    }
+    catch (int i)
+    {
+        assert(i == 6);
+    }
+}
+
+class X
+{
+    int i_;
+public:
+    X(int i) : i_(i) {}
+    X(X&& x) : i_(x.i_) {x.i_ = 0;}
+    ~X() {i_ = 0;}
+    friend bool operator==(const X& x, const X& y) {return x.i_ == y.i_;}
+};
+
+class Y
+{
+    int i_;
+public:
+    Y(int i) : i_(i) {}
+    Y(Y&& x) noexcept : i_(x.i_) {x.i_ = 0;}
+
+    friend constexpr bool operator==(const Y& x, const Y& y) {return x.i_ == y.i_;}
+};
+
+int count = 0;
+
+class Z
+{
+    int i_;
+public:
+    Z(int i) : i_(i) {}
+    Z(Z&&)
+    {
+        if (++count == 2)
+            throw 6;
+    }
+
+    friend constexpr bool operator==(const Z& x, const Z& y) {return x.i_ == y.i_;}
+};
+
+
+#endif  // _LIBCPP_STD_VER > 11
+
+int main()
+{
+#if _LIBCPP_STD_VER > 11
+    {
+        typedef int T;
+        optional<T> rhs;
+        test(rhs);
+    }
+    {
+        typedef int T;
+        optional<T> rhs(3);
+        test(rhs);
+    }
+    {
+        typedef X T;
+        optional<T> rhs;
+        test(rhs);
+    }
+    {
+        typedef X T;
+        optional<T> rhs(X(3));
+        test(rhs);
+    }
+    {
+        typedef Y T;
+        optional<T> rhs;
+        test(rhs);
+    }
+    {
+        typedef Y T;
+        optional<T> rhs(Y(3));
+        test(rhs);
+    }
+    {
+        typedef Z T;
+        optional<T> rhs;
+        test(rhs);
+    }
+    {
+        typedef Z T;
+        optional<T> rhs(Z(3));
+        test(rhs, true);
+    }
+#endif  // _LIBCPP_STD_VER > 11
+}

Added: libcxx/trunk/test/std/experimental/optional/optional.object/optional.object.ctor/nullopt_t.pass.cpp
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/test/std/experimental/optional/optional.object/optional.object.ctor/nullopt_t.pass.cpp?rev=224658&view=auto
==============================================================================
--- libcxx/trunk/test/std/experimental/optional/optional.object/optional.object.ctor/nullopt_t.pass.cpp (added)
+++ libcxx/trunk/test/std/experimental/optional/optional.object/optional.object.ctor/nullopt_t.pass.cpp Fri Dec 19 19:40:03 2014
@@ -0,0 +1,68 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <optional>
+
+// constexpr optional(nullopt_t) noexcept;
+
+#include <experimental/optional>
+#include <type_traits>
+#include <cassert>
+
+#if _LIBCPP_STD_VER > 11
+
+using std::experimental::optional;
+using std::experimental::nullopt_t;
+using std::experimental::nullopt;
+
+template <class Opt>
+void
+test_constexpr()
+{
+    static_assert(noexcept(Opt(nullopt)), "");
+    constexpr Opt opt(nullopt);
+    static_assert(static_cast<bool>(opt) == false, "");
+
+    struct test_constexpr_ctor
+        : public Opt
+    {
+        constexpr test_constexpr_ctor() {}
+    };
+}
+
+template <class Opt>
+void
+test()
+{
+    static_assert(noexcept(Opt(nullopt)), "");
+    Opt opt(nullopt);
+    assert(static_cast<bool>(opt) == false);
+
+    struct test_constexpr_ctor
+        : public Opt
+    {
+        constexpr test_constexpr_ctor() {}
+    };
+}
+
+struct X
+{
+    X();
+};
+
+#endif  // _LIBCPP_STD_VER > 11
+
+int main()
+{
+#if _LIBCPP_STD_VER > 11
+    test_constexpr<optional<int>>();
+    test_constexpr<optional<int*>>();
+    test<optional<X>>();
+#endif  // _LIBCPP_STD_VER > 11
+}

Added: libcxx/trunk/test/std/experimental/optional/optional.object/optional.object.ctor/rvalue_T.pass.cpp
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/test/std/experimental/optional/optional.object/optional.object.ctor/rvalue_T.pass.cpp?rev=224658&view=auto
==============================================================================
--- libcxx/trunk/test/std/experimental/optional/optional.object/optional.object.ctor/rvalue_T.pass.cpp (added)
+++ libcxx/trunk/test/std/experimental/optional/optional.object/optional.object.ctor/rvalue_T.pass.cpp Fri Dec 19 19:40:03 2014
@@ -0,0 +1,110 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <optional>
+
+// constexpr optional(T&& v);
+
+#include <experimental/optional>
+#include <type_traits>
+#include <cassert>
+
+#if _LIBCPP_STD_VER > 11
+
+using std::experimental::optional;
+
+class X
+{
+    int i_;
+public:
+    X(int i) : i_(i) {}
+    X(X&& x) : i_(x.i_) {}
+
+    friend bool operator==(const X& x, const X& y) {return x.i_ == y.i_;}
+};
+
+class Y
+{
+    int i_;
+public:
+    constexpr Y(int i) : i_(i) {}
+    constexpr Y(Y&& x) : i_(x.i_) {}
+
+    friend constexpr bool operator==(const Y& x, const Y& y) {return x.i_ == y.i_;}
+};
+
+class Z
+{
+    int i_;
+public:
+    Z(int i) : i_(i) {}
+    Z(Z&&) {throw 6;}
+};
+
+#endif  // _LIBCPP_STD_VER > 11
+
+int main()
+{
+#if _LIBCPP_STD_VER > 11
+    {
+        typedef int T;
+        constexpr optional<T> opt(T(5));
+        static_assert(static_cast<bool>(opt) == true, "");
+        static_assert(*opt == 5, "");
+
+        struct test_constexpr_ctor
+            : public optional<T>
+        {
+            constexpr test_constexpr_ctor(T&&) {}
+        };
+    }
+    {
+        typedef double T;
+        constexpr optional<T> opt(T(3));
+        static_assert(static_cast<bool>(opt) == true, "");
+        static_assert(*opt == 3, "");
+
+        struct test_constexpr_ctor
+            : public optional<T>
+        {
+            constexpr test_constexpr_ctor(T&&) {}
+        };
+    }
+    {
+        typedef X T;
+        optional<T> opt(T(3));
+        assert(static_cast<bool>(opt) == true);
+        assert(*opt == 3);
+    }
+    {
+        typedef Y T;
+        constexpr optional<T> opt(T(3));
+        static_assert(static_cast<bool>(opt) == true, "");
+        static_assert(*opt == 3, "");
+
+        struct test_constexpr_ctor
+            : public optional<T>
+        {
+            constexpr test_constexpr_ctor(T&&) {}
+        };
+    }
+    {
+        typedef Z T;
+        try
+        {
+            optional<T> opt(T(3));
+            assert(false);
+        }
+        catch (int i)
+        {
+            assert(i == 6);
+        }
+    }
+#endif  // _LIBCPP_STD_VER > 11
+}

Added: libcxx/trunk/test/std/experimental/optional/optional.object/optional.object.dtor/dtor.pass.cpp
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/test/std/experimental/optional/optional.object/optional.object.dtor/dtor.pass.cpp?rev=224658&view=auto
==============================================================================
--- libcxx/trunk/test/std/experimental/optional/optional.object/optional.object.dtor/dtor.pass.cpp (added)
+++ libcxx/trunk/test/std/experimental/optional/optional.object/optional.object.dtor/dtor.pass.cpp Fri Dec 19 19:40:03 2014
@@ -0,0 +1,59 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <optional>
+
+// ~optional();
+
+#include <experimental/optional>
+#include <type_traits>
+#include <cassert>
+
+#if _LIBCPP_STD_VER > 11
+
+using std::experimental::optional;
+
+class X
+{
+public:
+    static bool dtor_called;
+    X() = default;
+    ~X() {dtor_called = true;}
+};
+
+bool X::dtor_called = false;
+
+#endif  // _LIBCPP_STD_VER > 11
+
+int main()
+{
+#if _LIBCPP_STD_VER > 11
+    {
+        typedef int T;
+        static_assert(std::is_trivially_destructible<T>::value, "");
+        static_assert(std::is_trivially_destructible<optional<T>>::value, "");
+    }
+    {
+        typedef double T;
+        static_assert(std::is_trivially_destructible<T>::value, "");
+        static_assert(std::is_trivially_destructible<optional<T>>::value, "");
+    }
+    {
+        typedef X T;
+        static_assert(!std::is_trivially_destructible<T>::value, "");
+        static_assert(!std::is_trivially_destructible<optional<T>>::value, "");
+        {
+            X x;
+            optional<X> opt{x};
+            assert(X::dtor_called == false);
+        }
+        assert(X::dtor_called == true);
+    }
+#endif  // _LIBCPP_STD_VER > 11
+}

Added: libcxx/trunk/test/std/experimental/optional/optional.object/optional.object.observe/bool.pass.cpp
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/test/std/experimental/optional/optional.object/optional.object.observe/bool.pass.cpp?rev=224658&view=auto
==============================================================================
--- libcxx/trunk/test/std/experimental/optional/optional.object/optional.object.observe/bool.pass.cpp (added)
+++ libcxx/trunk/test/std/experimental/optional/optional.object/optional.object.observe/bool.pass.cpp Fri Dec 19 19:40:03 2014
@@ -0,0 +1,32 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <optional>
+
+// constexpr explicit optional<T>::operator bool() const noexcept;
+
+#include <experimental/optional>
+#include <type_traits>
+#include <cassert>
+
+int main()
+{
+#if _LIBCPP_STD_VER > 11
+    using std::experimental::optional;
+
+    {
+        constexpr optional<int> opt;
+        static_assert(!opt, "");
+    }
+    {
+        constexpr optional<int> opt(0);
+        static_assert(opt, "");
+    }
+#endif  // _LIBCPP_STD_VER > 11
+}

Added: libcxx/trunk/test/std/experimental/optional/optional.object/optional.object.observe/dereference.pass.cpp
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/test/std/experimental/optional/optional.object/optional.object.observe/dereference.pass.cpp?rev=224658&view=auto
==============================================================================
--- libcxx/trunk/test/std/experimental/optional/optional.object/optional.object.observe/dereference.pass.cpp (added)
+++ libcxx/trunk/test/std/experimental/optional/optional.object/optional.object.observe/dereference.pass.cpp Fri Dec 19 19:40:03 2014
@@ -0,0 +1,49 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <optional>
+
+// T& optional<T>::operator*();
+
+#ifdef _LIBCPP_DEBUG
+#define _LIBCPP_ASSERT(x, m) ((x) ? (void)0 : std::exit(0))
+#endif
+
+#include <experimental/optional>
+#include <type_traits>
+#include <cassert>
+
+#if _LIBCPP_STD_VER > 11
+
+using std::experimental::optional;
+
+struct X
+{
+    constexpr int test() const {return 3;}
+    int test() {return 4;}
+};
+
+#endif  // _LIBCPP_STD_VER > 11
+
+int main()
+{
+#if _LIBCPP_STD_VER > 11
+    {
+        optional<X> opt(X{});
+        assert((*opt).test() == 4);
+    }
+#ifdef _LIBCPP_DEBUG
+    {
+        optional<X> opt;
+        assert((*opt).test() == 3);
+        assert(false);
+    }
+#endif  // _LIBCPP_DEBUG
+#endif  // _LIBCPP_STD_VER > 11
+}

Added: libcxx/trunk/test/std/experimental/optional/optional.object/optional.object.observe/dereference_const.pass.cpp
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/test/std/experimental/optional/optional.object/optional.object.observe/dereference_const.pass.cpp?rev=224658&view=auto
==============================================================================
--- libcxx/trunk/test/std/experimental/optional/optional.object/optional.object.observe/dereference_const.pass.cpp (added)
+++ libcxx/trunk/test/std/experimental/optional/optional.object/optional.object.observe/dereference_const.pass.cpp Fri Dec 19 19:40:03 2014
@@ -0,0 +1,57 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <optional>
+
+// constexpr const T& optional<T>::operator*() const;
+
+#ifdef _LIBCPP_DEBUG
+#define _LIBCPP_ASSERT(x, m) ((x) ? (void)0 : std::exit(0))
+#endif
+
+#include <experimental/optional>
+#include <type_traits>
+#include <cassert>
+
+#if _LIBCPP_STD_VER > 11
+
+using std::experimental::optional;
+
+struct X
+{
+    constexpr int test() const {return 3;}
+};
+
+struct Y
+{
+    int test() const {return 2;}
+};
+
+#endif  // _LIBCPP_STD_VER > 11
+
+int main()
+{
+#if _LIBCPP_STD_VER > 11
+    {
+        constexpr optional<X> opt(X{});
+        static_assert((*opt).test() == 3, "");
+    }
+    {
+        constexpr optional<Y> opt(Y{});
+        assert((*opt).test() == 2);
+    }
+#ifdef _LIBCPP_DEBUG
+    {
+        const optional<X> opt;
+        assert((*opt).test() == 3);
+        assert(false);
+    }
+#endif  // _LIBCPP_DEBUG
+#endif  // _LIBCPP_STD_VER > 11
+}

Added: libcxx/trunk/test/std/experimental/optional/optional.object/optional.object.observe/op_arrow.pass.cpp
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/test/std/experimental/optional/optional.object/optional.object.observe/op_arrow.pass.cpp?rev=224658&view=auto
==============================================================================
--- libcxx/trunk/test/std/experimental/optional/optional.object/optional.object.observe/op_arrow.pass.cpp (added)
+++ libcxx/trunk/test/std/experimental/optional/optional.object/optional.object.observe/op_arrow.pass.cpp Fri Dec 19 19:40:03 2014
@@ -0,0 +1,52 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <optional>
+
+// constexpr T* optional<T>::operator->();
+
+#ifdef _LIBCPP_DEBUG
+#define _LIBCPP_ASSERT(x, m) ((x) ? (void)0 : std::exit(0))
+#endif
+
+#include <experimental/optional>
+#include <type_traits>
+#include <cassert>
+
+#if _LIBCPP_STD_VER > 11
+
+using std::experimental::optional;
+
+struct X
+{
+#if _LIBCPP_STD_VER > 14
+    constexpr int test() const {return 3;}
+#else
+    constexpr int test() {return 3;}
+#endif
+};
+
+#endif  // _LIBCPP_STD_VER > 11
+
+int main()
+{
+#if _LIBCPP_STD_VER > 11
+    {
+        constexpr optional<X> opt(X{});
+        static_assert(opt->test() == 3, "");
+    }
+#ifdef _LIBCPP_DEBUG
+    {
+        optional<X> opt;
+        assert(opt->test() == 3);
+        assert(false);
+    }
+#endif  // _LIBCPP_DEBUG
+#endif  // _LIBCPP_STD_VER > 11
+}

Added: libcxx/trunk/test/std/experimental/optional/optional.object/optional.object.observe/op_arrow_const.pass.cpp
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/test/std/experimental/optional/optional.object/optional.object.observe/op_arrow_const.pass.cpp?rev=224658&view=auto
==============================================================================
--- libcxx/trunk/test/std/experimental/optional/optional.object/optional.object.observe/op_arrow_const.pass.cpp (added)
+++ libcxx/trunk/test/std/experimental/optional/optional.object/optional.object.observe/op_arrow_const.pass.cpp Fri Dec 19 19:40:03 2014
@@ -0,0 +1,67 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <optional>
+
+// constexpr const T* optional<T>::operator->() const;
+
+#ifdef _LIBCPP_DEBUG
+#define _LIBCPP_ASSERT(x, m) ((x) ? (void)0 : std::exit(0))
+#endif
+
+#include <experimental/optional>
+#include <type_traits>
+#include <cassert>
+
+#if _LIBCPP_STD_VER > 11
+
+using std::experimental::optional;
+
+struct X
+{
+    constexpr int test() const {return 3;}
+};
+
+struct Y
+{
+    int test() const {return 2;}
+};
+
+struct Z
+{
+    const Z* operator&() const {return this;}
+    constexpr int test() const {return 1;}
+};
+
+#endif  // _LIBCPP_STD_VER > 11
+
+int main()
+{
+#if _LIBCPP_STD_VER > 11
+    {
+        constexpr optional<X> opt(X{});
+        static_assert(opt->test() == 3, "");
+    }
+    {
+        constexpr optional<Y> opt(Y{});
+        assert(opt->test() == 2);
+    }
+    {
+        constexpr optional<Z> opt(Z{});
+        assert(opt->test() == 1);
+    }
+#ifdef _LIBCPP_DEBUG
+    {
+        const optional<X> opt;
+        assert(opt->test() == 3);
+        assert(false);
+    }
+#endif  // _LIBCPP_DEBUG
+#endif  // _LIBCPP_STD_VER > 11
+}

Added: libcxx/trunk/test/std/experimental/optional/optional.object/optional.object.observe/value.pass.cpp
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/test/std/experimental/optional/optional.object/optional.object.observe/value.pass.cpp?rev=224658&view=auto
==============================================================================
--- libcxx/trunk/test/std/experimental/optional/optional.object/optional.object.observe/value.pass.cpp (added)
+++ libcxx/trunk/test/std/experimental/optional/optional.object/optional.object.observe/value.pass.cpp Fri Dec 19 19:40:03 2014
@@ -0,0 +1,53 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <optional>
+
+// T& optional<T>::value();
+
+#include <experimental/optional>
+#include <type_traits>
+#include <cassert>
+
+#if _LIBCPP_STD_VER > 11
+
+using std::experimental::optional;
+using std::experimental::bad_optional_access;
+
+struct X
+{
+    X() = default;
+    X(const X&) = delete;
+    constexpr int test() const {return 3;}
+    int test() {return 4;}
+};
+
+#endif  // _LIBCPP_STD_VER > 11
+
+int main()
+{
+#if _LIBCPP_STD_VER > 11
+    {
+        optional<X> opt;
+        opt.emplace();
+        assert(opt.value().test() == 4);
+    }
+    {
+        optional<X> opt;
+        try
+        {
+            opt.value();
+            assert(false);
+        }
+        catch (const bad_optional_access&)
+        {
+        }
+    }
+#endif  // _LIBCPP_STD_VER > 11
+}

Added: libcxx/trunk/test/std/experimental/optional/optional.object/optional.object.observe/value_const.fail.cpp
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/test/std/experimental/optional/optional.object/optional.object.observe/value_const.fail.cpp?rev=224658&view=auto
==============================================================================
--- libcxx/trunk/test/std/experimental/optional/optional.object/optional.object.observe/value_const.fail.cpp (added)
+++ libcxx/trunk/test/std/experimental/optional/optional.object/optional.object.observe/value_const.fail.cpp Fri Dec 19 19:40:03 2014
@@ -0,0 +1,40 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <optional>
+
+// constexpr const T& optional<T>::value() const;
+
+#include <experimental/optional>
+#include <type_traits>
+#include <cassert>
+
+#if _LIBCPP_STD_VER > 11
+
+using std::experimental::optional;
+
+struct X
+{
+    constexpr int test() const {return 3;}
+    int test() {return 4;}
+};
+
+#endif  // _LIBCPP_STD_VER > 11
+
+int main()
+{
+#if _LIBCPP_STD_VER > 11
+    {
+        constexpr optional<X> opt;
+        static_assert(opt.value().test() == 3, "");
+    }
+#else
+#error
+#endif  // _LIBCPP_STD_VER > 11
+}

Added: libcxx/trunk/test/std/experimental/optional/optional.object/optional.object.observe/value_const.pass.cpp
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/test/std/experimental/optional/optional.object/optional.object.observe/value_const.pass.cpp?rev=224658&view=auto
==============================================================================
--- libcxx/trunk/test/std/experimental/optional/optional.object/optional.object.observe/value_const.pass.cpp (added)
+++ libcxx/trunk/test/std/experimental/optional/optional.object/optional.object.observe/value_const.pass.cpp Fri Dec 19 19:40:03 2014
@@ -0,0 +1,58 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <optional>
+
+// constexpr const T& optional<T>::value() const;
+
+#include <experimental/optional>
+#include <type_traits>
+#include <cassert>
+
+#if _LIBCPP_STD_VER > 11
+
+using std::experimental::optional;
+using std::experimental::in_place_t;
+using std::experimental::in_place;
+using std::experimental::bad_optional_access;
+
+struct X
+{
+    X() = default;
+    X(const X&) = delete;
+   constexpr int test() const {return 3;}
+    int test() {return 4;}
+};
+
+#endif  // _LIBCPP_STD_VER > 11
+
+int main()
+{
+#if _LIBCPP_STD_VER > 11
+    {
+        constexpr optional<X> opt(in_place);
+        static_assert(opt.value().test() == 3, "");
+    }
+    {
+        const optional<X> opt(in_place);
+        assert(opt.value().test() == 3);
+    }
+    {
+        const optional<X> opt;
+        try
+        {
+            opt.value();
+            assert(false);
+        }
+        catch (const bad_optional_access&)
+        {
+        }
+    }
+#endif  // _LIBCPP_STD_VER > 11
+}

Added: libcxx/trunk/test/std/experimental/optional/optional.object/optional.object.observe/value_or.pass.cpp
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/test/std/experimental/optional/optional.object/optional.object.observe/value_or.pass.cpp?rev=224658&view=auto
==============================================================================
--- libcxx/trunk/test/std/experimental/optional/optional.object/optional.object.observe/value_or.pass.cpp (added)
+++ libcxx/trunk/test/std/experimental/optional/optional.object/optional.object.observe/value_or.pass.cpp Fri Dec 19 19:40:03 2014
@@ -0,0 +1,71 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <optional>
+
+// template <class U> T optional<T>::value_or(U&& v) &&;
+
+#include <experimental/optional>
+#include <type_traits>
+#include <cassert>
+
+#if _LIBCPP_STD_VER > 11
+
+using std::experimental::optional;
+using std::experimental::in_place_t;
+using std::experimental::in_place;
+
+struct Y
+{
+    int i_;
+
+    Y(int i) : i_(i) {}
+};
+
+struct X
+{
+    int i_;
+
+    X(int i) : i_(i) {}
+    X(X&& x) : i_(x.i_) {x.i_ = 0;}
+    X(const Y& y) : i_(y.i_) {}
+    X(Y&& y) : i_(y.i_+1) {}
+    friend constexpr bool operator==(const X& x, const X& y)
+        {return x.i_ == y.i_;}
+};
+
+#endif  // _LIBCPP_STD_VER > 11
+
+int main()
+{
+#if _LIBCPP_STD_VER > 11
+    {
+        optional<X> opt(in_place, 2);
+        Y y(3);
+        assert(std::move(opt).value_or(y) == 2);
+        assert(*opt == 0);
+    }
+    {
+        optional<X> opt(in_place, 2);
+        assert(std::move(opt).value_or(Y(3)) == 2);
+        assert(*opt == 0);
+    }
+    {
+        optional<X> opt;
+        Y y(3);
+        assert(std::move(opt).value_or(y) == 3);
+        assert(!opt);
+    }
+    {
+        optional<X> opt;
+        assert(std::move(opt).value_or(Y(3)) == 4);
+        assert(!opt);
+    }
+#endif  // _LIBCPP_STD_VER > 11
+}

Added: libcxx/trunk/test/std/experimental/optional/optional.object/optional.object.observe/value_or_const.pass.cpp
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/test/std/experimental/optional/optional.object/optional.object.observe/value_or_const.pass.cpp?rev=224658&view=auto
==============================================================================
--- libcxx/trunk/test/std/experimental/optional/optional.object/optional.object.observe/value_or_const.pass.cpp (added)
+++ libcxx/trunk/test/std/experimental/optional/optional.object/optional.object.observe/value_or_const.pass.cpp Fri Dec 19 19:40:03 2014
@@ -0,0 +1,82 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <optional>
+
+// template <class U> constexpr T optional<T>::value_or(U&& v) const&;
+
+#include <experimental/optional>
+#include <type_traits>
+#include <cassert>
+
+#if _LIBCPP_STD_VER > 11
+
+using std::experimental::optional;
+
+struct Y
+{
+    int i_;
+
+    constexpr Y(int i) : i_(i) {}
+};
+
+struct X
+{
+    int i_;
+
+    constexpr X(int i) : i_(i) {}
+    constexpr X(const Y& y) : i_(y.i_) {}
+    constexpr X(Y&& y) : i_(y.i_+1) {}
+    friend constexpr bool operator==(const X& x, const X& y)
+        {return x.i_ == y.i_;}
+};
+
+#endif  // _LIBCPP_STD_VER > 11
+
+int main()
+{
+#if _LIBCPP_STD_VER > 11
+    {
+        constexpr optional<X> opt(2);
+        constexpr Y y(3);
+        static_assert(opt.value_or(y) == 2, "");
+    }
+    {
+        constexpr optional<X> opt(2);
+        static_assert(opt.value_or(Y(3)) == 2, "");
+    }
+    {
+        constexpr optional<X> opt;
+        constexpr Y y(3);
+        static_assert(opt.value_or(y) == 3, "");
+    }
+    {
+        constexpr optional<X> opt;
+        static_assert(opt.value_or(Y(3)) == 4, "");
+    }
+    {
+        const optional<X> opt(2);
+        const Y y(3);
+        assert(opt.value_or(y) == 2);
+    }
+    {
+        const optional<X> opt(2);
+        assert(opt.value_or(Y(3)) == 2);
+    }
+    {
+        const optional<X> opt;
+        const Y y(3);
+        assert(opt.value_or(y) == 3);
+    }
+    {
+        const optional<X> opt;
+        assert(opt.value_or(Y(3)) == 4);
+    }
+#endif  // _LIBCPP_STD_VER > 11
+}

Added: libcxx/trunk/test/std/experimental/optional/optional.object/optional.object.swap/swap.pass.cpp
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/test/std/experimental/optional/optional.object/optional.object.swap/swap.pass.cpp?rev=224658&view=auto
==============================================================================
--- libcxx/trunk/test/std/experimental/optional/optional.object/optional.object.swap/swap.pass.cpp (added)
+++ libcxx/trunk/test/std/experimental/optional/optional.object/optional.object.swap/swap.pass.cpp Fri Dec 19 19:40:03 2014
@@ -0,0 +1,306 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <optional>
+
+// void swap(optional&)
+//     noexcept(is_nothrow_move_constructible<T>::value &&
+//              noexcept(swap(declval<T&>(), declval<T&>())));
+
+#include <experimental/optional>
+#include <type_traits>
+#include <cassert>
+
+#if _LIBCPP_STD_VER > 11
+
+using std::experimental::optional;
+
+class X
+{
+    int i_;
+public:
+    static unsigned dtor_called;
+    X(int i) : i_(i) {}
+    X(X&& x) = default;
+    X& operator=(X&&) = default;
+    ~X() {++dtor_called;}
+
+    friend bool operator==(const X& x, const X& y) {return x.i_ == y.i_;}
+};
+
+unsigned X::dtor_called = 0;
+
+class Y
+{
+    int i_;
+public:
+    static unsigned dtor_called;
+    Y(int i) : i_(i) {}
+    Y(Y&&) = default;
+    ~Y() {++dtor_called;}
+
+    friend constexpr bool operator==(const Y& x, const Y& y) {return x.i_ == y.i_;}
+    friend void swap(Y& x, Y& y) {std::swap(x.i_, y.i_);}
+};
+
+unsigned Y::dtor_called = 0;
+
+class Z
+{
+    int i_;
+public:
+    Z(int i) : i_(i) {}
+    Z(Z&&) {throw 7;}
+
+    friend constexpr bool operator==(const Z& x, const Z& y) {return x.i_ == y.i_;}
+    friend void swap(Z& x, Z& y) {throw 6;}
+};
+
+
+#endif  // _LIBCPP_STD_VER > 11
+
+int main()
+{
+#if _LIBCPP_STD_VER > 11
+    {
+        optional<int> opt1;
+        optional<int> opt2;
+        static_assert(noexcept(opt1.swap(opt2)) == true, "");
+        assert(static_cast<bool>(opt1) == false);
+        assert(static_cast<bool>(opt2) == false);
+        opt1.swap(opt2);
+        assert(static_cast<bool>(opt1) == false);
+        assert(static_cast<bool>(opt2) == false);
+    }
+    {
+        optional<int> opt1(1);
+        optional<int> opt2;
+        static_assert(noexcept(opt1.swap(opt2)) == true, "");
+        assert(static_cast<bool>(opt1) == true);
+        assert(*opt1 == 1);
+        assert(static_cast<bool>(opt2) == false);
+        opt1.swap(opt2);
+        assert(static_cast<bool>(opt1) == false);
+        assert(static_cast<bool>(opt2) == true);
+        assert(*opt2 == 1);
+    }
+    {
+        optional<int> opt1;
+        optional<int> opt2(2);
+        static_assert(noexcept(opt1.swap(opt2)) == true, "");
+        assert(static_cast<bool>(opt1) == false);
+        assert(static_cast<bool>(opt2) == true);
+        assert(*opt2 == 2);
+        opt1.swap(opt2);
+        assert(static_cast<bool>(opt1) == true);
+        assert(*opt1 == 2);
+        assert(static_cast<bool>(opt2) == false);
+    }
+    {
+        optional<int> opt1(1);
+        optional<int> opt2(2);
+        static_assert(noexcept(opt1.swap(opt2)) == true, "");
+        assert(static_cast<bool>(opt1) == true);
+        assert(*opt1 == 1);
+        assert(static_cast<bool>(opt2) == true);
+        assert(*opt2 == 2);
+        opt1.swap(opt2);
+        assert(static_cast<bool>(opt1) == true);
+        assert(*opt1 == 2);
+        assert(static_cast<bool>(opt2) == true);
+        assert(*opt2 == 1);
+    }
+    {
+        optional<X> opt1;
+        optional<X> opt2;
+        static_assert(noexcept(opt1.swap(opt2)) == true, "");
+        assert(static_cast<bool>(opt1) == false);
+        assert(static_cast<bool>(opt2) == false);
+        opt1.swap(opt2);
+        assert(static_cast<bool>(opt1) == false);
+        assert(static_cast<bool>(opt2) == false);
+        assert(X::dtor_called == 0);
+    }
+    {
+        optional<X> opt1(1);
+        optional<X> opt2;
+        static_assert(noexcept(opt1.swap(opt2)) == true, "");
+        assert(static_cast<bool>(opt1) == true);
+        assert(*opt1 == 1);
+        assert(static_cast<bool>(opt2) == false);
+        X::dtor_called = 0;
+        opt1.swap(opt2);
+        assert(X::dtor_called == 1);
+        assert(static_cast<bool>(opt1) == false);
+        assert(static_cast<bool>(opt2) == true);
+        assert(*opt2 == 1);
+    }
+    {
+        optional<X> opt1;
+        optional<X> opt2(2);
+        static_assert(noexcept(opt1.swap(opt2)) == true, "");
+        assert(static_cast<bool>(opt1) == false);
+        assert(static_cast<bool>(opt2) == true);
+        assert(*opt2 == 2);
+        X::dtor_called = 0;
+        opt1.swap(opt2);
+        assert(X::dtor_called == 1);
+        assert(static_cast<bool>(opt1) == true);
+        assert(*opt1 == 2);
+        assert(static_cast<bool>(opt2) == false);
+    }
+    {
+        optional<X> opt1(1);
+        optional<X> opt2(2);
+        static_assert(noexcept(opt1.swap(opt2)) == true, "");
+        assert(static_cast<bool>(opt1) == true);
+        assert(*opt1 == 1);
+        assert(static_cast<bool>(opt2) == true);
+        assert(*opt2 == 2);
+        X::dtor_called = 0;
+        opt1.swap(opt2);
+        assert(X::dtor_called == 1);  // from inside std::swap
+        assert(static_cast<bool>(opt1) == true);
+        assert(*opt1 == 2);
+        assert(static_cast<bool>(opt2) == true);
+        assert(*opt2 == 1);
+    }
+    {
+        optional<Y> opt1;
+        optional<Y> opt2;
+        static_assert(noexcept(opt1.swap(opt2)) == false, "");
+        assert(static_cast<bool>(opt1) == false);
+        assert(static_cast<bool>(opt2) == false);
+        opt1.swap(opt2);
+        assert(static_cast<bool>(opt1) == false);
+        assert(static_cast<bool>(opt2) == false);
+        assert(Y::dtor_called == 0);
+    }
+    {
+        optional<Y> opt1(1);
+        optional<Y> opt2;
+        static_assert(noexcept(opt1.swap(opt2)) == false, "");
+        assert(static_cast<bool>(opt1) == true);
+        assert(*opt1 == 1);
+        assert(static_cast<bool>(opt2) == false);
+        Y::dtor_called = 0;
+        opt1.swap(opt2);
+        assert(Y::dtor_called == 1);
+        assert(static_cast<bool>(opt1) == false);
+        assert(static_cast<bool>(opt2) == true);
+        assert(*opt2 == 1);
+    }
+    {
+        optional<Y> opt1;
+        optional<Y> opt2(2);
+        static_assert(noexcept(opt1.swap(opt2)) == false, "");
+        assert(static_cast<bool>(opt1) == false);
+        assert(static_cast<bool>(opt2) == true);
+        assert(*opt2 == 2);
+        Y::dtor_called = 0;
+        opt1.swap(opt2);
+        assert(Y::dtor_called == 1);
+        assert(static_cast<bool>(opt1) == true);
+        assert(*opt1 == 2);
+        assert(static_cast<bool>(opt2) == false);
+    }
+    {
+        optional<Y> opt1(1);
+        optional<Y> opt2(2);
+        static_assert(noexcept(opt1.swap(opt2)) == false, "");
+        assert(static_cast<bool>(opt1) == true);
+        assert(*opt1 == 1);
+        assert(static_cast<bool>(opt2) == true);
+        assert(*opt2 == 2);
+        Y::dtor_called = 0;
+        opt1.swap(opt2);
+        assert(Y::dtor_called == 0);
+        assert(static_cast<bool>(opt1) == true);
+        assert(*opt1 == 2);
+        assert(static_cast<bool>(opt2) == true);
+        assert(*opt2 == 1);
+    }
+    {
+        optional<Z> opt1;
+        optional<Z> opt2;
+        static_assert(noexcept(opt1.swap(opt2)) == false, "");
+        assert(static_cast<bool>(opt1) == false);
+        assert(static_cast<bool>(opt2) == false);
+        opt1.swap(opt2);
+        assert(static_cast<bool>(opt1) == false);
+        assert(static_cast<bool>(opt2) == false);
+    }
+    {
+        optional<Z> opt1;
+        opt1.emplace(1);
+        optional<Z> opt2;
+        static_assert(noexcept(opt1.swap(opt2)) == false, "");
+        assert(static_cast<bool>(opt1) == true);
+        assert(*opt1 == 1);
+        assert(static_cast<bool>(opt2) == false);
+        try
+        {
+            opt1.swap(opt2);
+            assert(false);
+        }
+        catch (int i)
+        {
+            assert(i == 7);
+        }
+        assert(static_cast<bool>(opt1) == true);
+        assert(*opt1 == 1);
+        assert(static_cast<bool>(opt2) == false);
+    }
+    {
+        optional<Z> opt1;
+        optional<Z> opt2;
+        opt2.emplace(2);
+        static_assert(noexcept(opt1.swap(opt2)) == false, "");
+        assert(static_cast<bool>(opt1) == false);
+        assert(static_cast<bool>(opt2) == true);
+        assert(*opt2 == 2);
+        try
+        {
+            opt1.swap(opt2);
+            assert(false);
+        }
+        catch (int i)
+        {
+            assert(i == 7);
+        }
+        assert(static_cast<bool>(opt1) == false);
+        assert(static_cast<bool>(opt2) == true);
+        assert(*opt2 == 2);
+    }
+    {
+        optional<Z> opt1;
+        opt1.emplace(1);
+        optional<Z> opt2;
+        opt2.emplace(2);
+        static_assert(noexcept(opt1.swap(opt2)) == false, "");
+        assert(static_cast<bool>(opt1) == true);
+        assert(*opt1 == 1);
+        assert(static_cast<bool>(opt2) == true);
+        assert(*opt2 == 2);
+        try
+        {
+            opt1.swap(opt2);
+            assert(false);
+        }
+        catch (int i)
+        {
+            assert(i == 6);
+        }
+        assert(static_cast<bool>(opt1) == true);
+        assert(*opt1 == 1);
+        assert(static_cast<bool>(opt2) == true);
+        assert(*opt2 == 2);
+    }
+#endif  // _LIBCPP_STD_VER > 11
+}

Added: libcxx/trunk/test/std/experimental/optional/optional.object/optional_const_void.fail.cpp
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/test/std/experimental/optional/optional.object/optional_const_void.fail.cpp?rev=224658&view=auto
==============================================================================
--- libcxx/trunk/test/std/experimental/optional/optional.object/optional_const_void.fail.cpp (added)
+++ libcxx/trunk/test/std/experimental/optional/optional.object/optional_const_void.fail.cpp Fri Dec 19 19:40:03 2014
@@ -0,0 +1,25 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <optional>
+
+// T shall be an object type and shall satisfy the requirements of Destructible
+
+#include <experimental/optional>
+
+int main()
+{
+#if _LIBCPP_STD_VER > 11
+    using std::experimental::optional;
+
+    optional<const void> opt;
+#else
+#error
+#endif  // _LIBCPP_STD_VER > 11
+}

Added: libcxx/trunk/test/std/experimental/optional/optional.object/optional_not_destructible.fail.cpp
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/test/std/experimental/optional/optional.object/optional_not_destructible.fail.cpp?rev=224658&view=auto
==============================================================================
--- libcxx/trunk/test/std/experimental/optional/optional.object/optional_not_destructible.fail.cpp (added)
+++ libcxx/trunk/test/std/experimental/optional/optional.object/optional_not_destructible.fail.cpp Fri Dec 19 19:40:03 2014
@@ -0,0 +1,35 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <optional>
+
+// T shall be an object type and shall satisfy the requirements of Destructible
+
+#include <experimental/optional>
+
+#if _LIBCPP_STD_VER > 11
+
+using std::experimental::optional;
+
+struct X
+{
+private:
+    ~X() {}
+};
+
+#endif  // _LIBCPP_STD_VER > 11
+
+int main()
+{
+#if _LIBCPP_STD_VER > 11
+    optional<X> opt;
+#else
+#error
+#endif  // _LIBCPP_STD_VER > 11
+}

Added: libcxx/trunk/test/std/experimental/optional/optional.object/optional_not_noexcept_destructible.fail.cpp
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/test/std/experimental/optional/optional.object/optional_not_noexcept_destructible.fail.cpp?rev=224658&view=auto
==============================================================================
--- libcxx/trunk/test/std/experimental/optional/optional.object/optional_not_noexcept_destructible.fail.cpp (added)
+++ libcxx/trunk/test/std/experimental/optional/optional.object/optional_not_noexcept_destructible.fail.cpp Fri Dec 19 19:40:03 2014
@@ -0,0 +1,34 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <optional>
+
+// T shall be an object type and shall satisfy the requirements of Destructible
+
+#include <experimental/optional>
+
+#if _LIBCPP_STD_VER > 11
+
+using std::experimental::optional;
+
+struct X
+{
+    ~X() noexcept(false) {}
+};
+
+#endif  // _LIBCPP_STD_VER > 11
+
+int main()
+{
+#if _LIBCPP_STD_VER > 11
+    optional<X> opt;
+#else
+#error
+#endif  // _LIBCPP_STD_VER > 11
+}

Added: libcxx/trunk/test/std/experimental/optional/optional.object/optional_void.fail.cpp
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/test/std/experimental/optional/optional.object/optional_void.fail.cpp?rev=224658&view=auto
==============================================================================
--- libcxx/trunk/test/std/experimental/optional/optional.object/optional_void.fail.cpp (added)
+++ libcxx/trunk/test/std/experimental/optional/optional.object/optional_void.fail.cpp Fri Dec 19 19:40:03 2014
@@ -0,0 +1,25 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <optional>
+
+// T shall be an object type and shall satisfy the requirements of Destructible
+
+#include <experimental/optional>
+
+int main()
+{
+#if _LIBCPP_STD_VER > 11
+    using std::experimental::optional;
+
+    optional<void> opt;
+#else
+#error
+#endif  // _LIBCPP_STD_VER > 11
+}

Added: libcxx/trunk/test/std/experimental/optional/optional.object/types.pass.cpp
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/test/std/experimental/optional/optional.object/types.pass.cpp?rev=224658&view=auto
==============================================================================
--- libcxx/trunk/test/std/experimental/optional/optional.object/types.pass.cpp (added)
+++ libcxx/trunk/test/std/experimental/optional/optional.object/types.pass.cpp Fri Dec 19 19:40:03 2014
@@ -0,0 +1,43 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <optional>
+
+// template <class T>
+// class optional
+// {
+// public:
+//     typedef T value_type;
+//     ...
+
+#include <experimental/optional>
+#include <type_traits>
+
+#if _LIBCPP_STD_VER > 11
+
+using std::experimental::optional;
+
+template <class Opt, class T>
+void
+test()
+{
+    static_assert(std::is_same<typename Opt::value_type, T>::value, "");
+}
+
+#endif  // _LIBCPP_STD_VER > 11
+
+int main()
+{
+#if _LIBCPP_STD_VER > 11
+    test<optional<int>, int>();
+    test<optional<const int>, const int>();
+    test<optional<double>, double>();
+    test<optional<const double>, const double>();
+#endif  // _LIBCPP_STD_VER > 11
+}

Added: libcxx/trunk/test/std/experimental/optional/optional.relops/equal.pass.cpp
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/test/std/experimental/optional/optional.relops/equal.pass.cpp?rev=224658&view=auto
==============================================================================
--- libcxx/trunk/test/std/experimental/optional/optional.relops/equal.pass.cpp (added)
+++ libcxx/trunk/test/std/experimental/optional/optional.relops/equal.pass.cpp Fri Dec 19 19:40:03 2014
@@ -0,0 +1,79 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <optional>
+
+// template <class T> constexpr bool operator==(const optional<T>& x, const optional<T>& y);
+
+#include <experimental/optional>
+#include <type_traits>
+#include <cassert>
+
+#if _LIBCPP_STD_VER > 11
+
+using std::experimental::optional;
+
+struct X
+{
+    int i_;
+
+    constexpr X(int i) : i_(i) {}
+};
+
+constexpr bool operator == ( const X &lhs, const X &rhs )
+    { return lhs.i_ == rhs.i_ ; }
+    
+#endif
+
+int main()
+{
+#if _LIBCPP_STD_VER > 11
+    {
+    typedef X T;
+    typedef optional<T> O;
+    
+    constexpr O o1;     // disengaged
+    constexpr O o2;     // disengaged
+    constexpr O o3{1};  // engaged
+    constexpr O o4{2};  // engaged
+    constexpr O o5{1};  // engaged
+
+    static_assert (   o1 == o1 , "" );
+    static_assert (   o1 == o2 , "" );
+    static_assert ( !(o1 == o3), "" );
+    static_assert ( !(o1 == o4), "" );
+    static_assert ( !(o1 == o5), "" );
+
+    static_assert (   o2 == o1 , "" );
+    static_assert (   o2 == o2 , "" );
+    static_assert ( !(o2 == o3), "" );
+    static_assert ( !(o2 == o4), "" );
+    static_assert ( !(o2 == o5), "" );
+
+    static_assert ( !(o3 == o1), "" );
+    static_assert ( !(o3 == o2), "" );
+    static_assert (   o3 == o3 , "" );
+    static_assert ( !(o3 == o4), "" );
+    static_assert (   o3 == o5 , "" );
+
+    static_assert ( !(o4 == o1), "" );
+    static_assert ( !(o4 == o2), "" );
+    static_assert ( !(o4 == o3), "" );
+    static_assert (   o4 == o4 , "" );
+    static_assert ( !(o4 == o5), "" );
+
+    static_assert ( !(o5 == o1), "" );
+    static_assert ( !(o5 == o2), "" );
+    static_assert (   o5 == o3 , "" );
+    static_assert ( !(o5 == o4), "" );
+    static_assert (   o5 == o5 , "" );
+
+    }
+#endif
+}

Added: libcxx/trunk/test/std/experimental/optional/optional.relops/greater_equal.pass.cpp
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/test/std/experimental/optional/optional.relops/greater_equal.pass.cpp?rev=224658&view=auto
==============================================================================
--- libcxx/trunk/test/std/experimental/optional/optional.relops/greater_equal.pass.cpp (added)
+++ libcxx/trunk/test/std/experimental/optional/optional.relops/greater_equal.pass.cpp Fri Dec 19 19:40:03 2014
@@ -0,0 +1,75 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <optional>
+
+// template <class T> constexpr bool operator>= (const optional<T>& x, const optional<T>& y);
+
+#include <experimental/optional>
+
+#if _LIBCPP_STD_VER > 11
+
+using std::experimental::optional;
+
+struct X
+{
+    int i_;
+
+    constexpr X(int i) : i_(i) {}
+};
+
+constexpr bool operator < ( const X &lhs, const X &rhs )
+    { return lhs.i_ < rhs.i_ ; }
+
+#endif
+
+int main()
+{
+#if _LIBCPP_STD_VER > 11
+    {
+    typedef optional<X> O;
+    
+    constexpr O o1;     // disengaged
+    constexpr O o2;     // disengaged
+    constexpr O o3{1};  // engaged
+    constexpr O o4{2};  // engaged
+    constexpr O o5{1};  // engaged
+    
+    static_assert (  (o1 >= o1), "" );
+    static_assert (  (o1 >= o2), "" );
+    static_assert ( !(o1 >= o3), "" );
+    static_assert ( !(o1 >= o4), "" );
+    static_assert ( !(o1 >= o5), "" );
+
+    static_assert (  (o2 >= o1), "" );
+    static_assert (  (o2 >= o2), "" );
+    static_assert ( !(o2 >= o3), "" );
+    static_assert ( !(o2 >= o4), "" );
+    static_assert ( !(o2 >= o5), "" );
+
+    static_assert (  (o3 >= o1), "" );
+    static_assert (  (o3 >= o2), "" );
+    static_assert (  (o3 >= o3), "" );
+    static_assert ( !(o3 >= o4), "" );
+    static_assert (  (o3 >= o5), "" );
+
+    static_assert (  (o4 >= o1), "" );
+    static_assert (  (o4 >= o2), "" );
+    static_assert (  (o4 >= o3), "" );
+    static_assert (  (o4 >= o4), "" );
+    static_assert (  (o4 >= o5), "" );
+
+    static_assert (  (o5 >= o1), "" );
+    static_assert (  (o5 >= o2), "" );
+    static_assert (  (o5 >= o3), "" );
+    static_assert ( !(o5 >= o4), "" );
+    static_assert (  (o5 >= o5), "" );
+    }
+#endif
+}

Added: libcxx/trunk/test/std/experimental/optional/optional.relops/greater_than.pass.cpp
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/test/std/experimental/optional/optional.relops/greater_than.pass.cpp?rev=224658&view=auto
==============================================================================
--- libcxx/trunk/test/std/experimental/optional/optional.relops/greater_than.pass.cpp (added)
+++ libcxx/trunk/test/std/experimental/optional/optional.relops/greater_than.pass.cpp Fri Dec 19 19:40:03 2014
@@ -0,0 +1,75 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <optional>
+
+// template <class T> constexpr bool operator> (const optional<T>& x, const optional<T>& y);
+
+#include <experimental/optional>
+
+#if _LIBCPP_STD_VER > 11
+
+using std::experimental::optional;
+
+struct X
+{
+    int i_;
+
+    constexpr X(int i) : i_(i) {}
+};
+
+constexpr bool operator < ( const X &lhs, const X &rhs )
+    { return lhs.i_ < rhs.i_ ; }
+
+#endif
+
+int main()
+{
+#if _LIBCPP_STD_VER > 11
+    {
+    typedef optional<X> O;
+    
+    constexpr O o1;     // disengaged
+    constexpr O o2;     // disengaged
+    constexpr O o3{1};  // engaged
+    constexpr O o4{2};  // engaged
+    constexpr O o5{1};  // engaged
+    
+    static_assert ( !(o1 > o1), "" );
+    static_assert ( !(o1 > o2), "" );
+    static_assert ( !(o1 > o3), "" );
+    static_assert ( !(o1 > o4), "" );
+    static_assert ( !(o1 > o5), "" );
+
+    static_assert ( !(o2 > o1), "" );
+    static_assert ( !(o2 > o2), "" );
+    static_assert ( !(o2 > o3), "" );
+    static_assert ( !(o2 > o4), "" );
+    static_assert ( !(o2 > o5), "" );
+
+    static_assert (  (o3 > o1), "" );
+    static_assert (  (o3 > o2), "" );
+    static_assert ( !(o3 > o3), "" );
+    static_assert ( !(o3 > o4), "" );
+    static_assert ( !(o3 > o5), "" );
+
+    static_assert (  (o4 > o1), "" );
+    static_assert (  (o4 > o2), "" );
+    static_assert (  (o4 > o3), "" );
+    static_assert ( !(o4 > o4), "" );
+    static_assert (  (o4 > o5), "" );
+
+    static_assert (  (o5 > o1), "" );
+    static_assert (  (o5 > o2), "" );
+    static_assert ( !(o5 > o3), "" );
+    static_assert ( !(o5 > o4), "" );
+    static_assert ( !(o5 > o5), "" );
+    }
+#endif
+}

Added: libcxx/trunk/test/std/experimental/optional/optional.relops/less_equal.pass.cpp
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/test/std/experimental/optional/optional.relops/less_equal.pass.cpp?rev=224658&view=auto
==============================================================================
--- libcxx/trunk/test/std/experimental/optional/optional.relops/less_equal.pass.cpp (added)
+++ libcxx/trunk/test/std/experimental/optional/optional.relops/less_equal.pass.cpp Fri Dec 19 19:40:03 2014
@@ -0,0 +1,75 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <optional>
+
+// template <class T> constexpr bool operator<= (const optional<T>& x, const optional<T>& y);
+
+#include <experimental/optional>
+
+#if _LIBCPP_STD_VER > 11
+
+using std::experimental::optional;
+
+struct X
+{
+    int i_;
+
+    constexpr X(int i) : i_(i) {}
+};
+
+constexpr bool operator < ( const X &lhs, const X &rhs )
+    { return lhs.i_ < rhs.i_ ; }
+
+#endif
+
+int main()
+{
+#if _LIBCPP_STD_VER > 11
+    {
+    typedef optional<X> O;
+    
+    constexpr O o1;     // disengaged
+    constexpr O o2;     // disengaged
+    constexpr O o3{1};  // engaged
+    constexpr O o4{2};  // engaged
+    constexpr O o5{1};  // engaged
+    
+    static_assert (  (o1 <= o1), "" );
+    static_assert (  (o1 <= o2), "" );
+    static_assert (  (o1 <= o3), "" );
+    static_assert (  (o1 <= o4), "" );
+    static_assert (  (o1 <= o5), "" );
+
+    static_assert (  (o2 <= o1), "" );
+    static_assert (  (o2 <= o2), "" );
+    static_assert (  (o2 <= o3), "" );
+    static_assert (  (o2 <= o4), "" );
+    static_assert (  (o2 <= o5), "" );
+
+    static_assert ( !(o3 <= o1), "" );
+    static_assert ( !(o3 <= o2), "" );
+    static_assert (  (o3 <= o3), "" );
+    static_assert (  (o3 <= o4), "" );
+    static_assert (  (o3 <= o5), "" );
+
+    static_assert ( !(o4 <= o1), "" );
+    static_assert ( !(o4 <= o2), "" );
+    static_assert ( !(o4 <= o3), "" );
+    static_assert (  (o4 <= o4), "" );
+    static_assert ( !(o4 <= o5), "" );
+
+    static_assert ( !(o5 <= o1), "" );
+    static_assert ( !(o5 <= o2), "" );
+    static_assert (  (o5 <= o3), "" );
+    static_assert (  (o5 <= o4), "" );
+    static_assert (  (o5 <= o5), "" );
+    }
+#endif
+}

Added: libcxx/trunk/test/std/experimental/optional/optional.relops/less_than.pass.cpp
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/test/std/experimental/optional/optional.relops/less_than.pass.cpp?rev=224658&view=auto
==============================================================================
--- libcxx/trunk/test/std/experimental/optional/optional.relops/less_than.pass.cpp (added)
+++ libcxx/trunk/test/std/experimental/optional/optional.relops/less_than.pass.cpp Fri Dec 19 19:40:03 2014
@@ -0,0 +1,75 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <optional>
+
+// template <class T> constexpr bool operator< (const optional<T>& x, const optional<T>& y);
+
+#include <experimental/optional>
+
+#if _LIBCPP_STD_VER > 11
+
+using std::experimental::optional;
+
+struct X
+{
+    int i_;
+
+    constexpr X(int i) : i_(i) {}
+};
+
+constexpr bool operator < ( const X &lhs, const X &rhs )
+    { return lhs.i_ < rhs.i_ ; }
+
+#endif
+
+int main()
+{
+#if _LIBCPP_STD_VER > 11
+    {
+    typedef optional<X> O;
+    
+    constexpr O o1;     // disengaged
+    constexpr O o2;     // disengaged
+    constexpr O o3{1};  // engaged
+    constexpr O o4{2};  // engaged
+    constexpr O o5{1};  // engaged
+    
+    static_assert ( !(o1 < o1), "" );
+    static_assert ( !(o1 < o2), "" );
+    static_assert (  (o1 < o3), "" );
+    static_assert (  (o1 < o4), "" );
+    static_assert (  (o1 < o5), "" );
+
+    static_assert ( !(o2 < o1), "" );
+    static_assert ( !(o2 < o2), "" );
+    static_assert (  (o2 < o3), "" );
+    static_assert (  (o2 < o4), "" );
+    static_assert (  (o2 < o5), "" );
+
+    static_assert ( !(o3 < o1), "" );
+    static_assert ( !(o3 < o2), "" );
+    static_assert ( !(o3 < o3), "" );
+    static_assert (  (o3 < o4), "" );
+    static_assert ( !(o3 < o5), "" );
+
+    static_assert ( !(o4 < o1), "" );
+    static_assert ( !(o4 < o2), "" );
+    static_assert ( !(o4 < o3), "" );
+    static_assert ( !(o4 < o4), "" );
+    static_assert ( !(o4 < o5), "" );
+
+    static_assert ( !(o5 < o1), "" );
+    static_assert ( !(o5 < o2), "" );
+    static_assert ( !(o5 < o3), "" );
+    static_assert (  (o5 < o4), "" );
+    static_assert ( !(o5 < o5), "" );
+    }
+#endif
+}

Added: libcxx/trunk/test/std/experimental/optional/optional.relops/not_equal.pass.cpp
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/test/std/experimental/optional/optional.relops/not_equal.pass.cpp?rev=224658&view=auto
==============================================================================
--- libcxx/trunk/test/std/experimental/optional/optional.relops/not_equal.pass.cpp (added)
+++ libcxx/trunk/test/std/experimental/optional/optional.relops/not_equal.pass.cpp Fri Dec 19 19:40:03 2014
@@ -0,0 +1,79 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <optional>
+
+// template <class T> constexpr bool operator!=(const optional<T>& x, const optional<T>& y);
+
+#include <experimental/optional>
+#include <type_traits>
+#include <cassert>
+
+#if _LIBCPP_STD_VER > 11
+
+using std::experimental::optional;
+
+struct X
+{
+    int i_;
+
+    constexpr X(int i) : i_(i) {}
+};
+
+constexpr bool operator == ( const X &lhs, const X &rhs )
+    { return lhs.i_ == rhs.i_ ; }
+    
+#endif
+
+int main()
+{
+#if _LIBCPP_STD_VER > 11
+    {
+    typedef X T;
+    typedef optional<T> O;
+    
+    constexpr O o1;     // disengaged
+    constexpr O o2;     // disengaged
+    constexpr O o3{1};  // engaged
+    constexpr O o4{2};  // engaged
+    constexpr O o5{1};  // engaged
+
+    static_assert ( !(o1 != o1), "" );
+    static_assert ( !(o1 != o2), "" );
+    static_assert (  (o1 != o3), "" );
+    static_assert (  (o1 != o4), "" );
+    static_assert (  (o1 != o5), "" );
+
+    static_assert ( !(o2 != o1), "" );
+    static_assert ( !(o2 != o2), "" );
+    static_assert (  (o2 != o3), "" );
+    static_assert (  (o2 != o4), "" );
+    static_assert (  (o2 != o5), "" );
+
+    static_assert (  (o3 != o1), "" );
+    static_assert (  (o3 != o2), "" );
+    static_assert ( !(o3 != o3), "" );
+    static_assert (  (o3 != o4), "" );
+    static_assert ( !(o3 != o5), "" );
+
+    static_assert (  (o4 != o1), "" );
+    static_assert (  (o4 != o2), "" );
+    static_assert (  (o4 != o3), "" );
+    static_assert ( !(o4 != o4), "" );
+    static_assert (  (o4 != o5), "" );
+
+    static_assert (  (o5 != o1), "" );
+    static_assert (  (o5 != o2), "" );
+    static_assert ( !(o5 != o3), "" );
+    static_assert (  (o5 != o4), "" );
+    static_assert ( !(o5 != o5), "" );
+
+    }
+#endif
+}

Added: libcxx/trunk/test/std/experimental/optional/optional.specalg/make_optional.pass.cpp
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/test/std/experimental/optional/optional.specalg/make_optional.pass.cpp?rev=224658&view=auto
==============================================================================
--- libcxx/trunk/test/std/experimental/optional/optional.specalg/make_optional.pass.cpp (added)
+++ libcxx/trunk/test/std/experimental/optional/optional.specalg/make_optional.pass.cpp Fri Dec 19 19:40:03 2014
@@ -0,0 +1,50 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <optional>
+
+// template <class T>
+//   constexpr
+//   optional<typename decay<T>::type>
+//   make_optional(T&& v);
+
+#include <experimental/optional>
+#include <string>
+#include <memory>
+#include <cassert>
+
+int main()
+{
+#if _LIBCPP_STD_VER > 11
+    using std::experimental::optional;
+    using std::experimental::make_optional;
+
+    {
+        optional<int> opt = make_optional(2);
+        assert(*opt == 2);
+    }
+    {
+        std::string s("123");
+        optional<std::string> opt = make_optional(s);
+        assert(*opt == s);
+    }
+    {
+        std::string s("123");
+        optional<std::string> opt = make_optional(std::move(s));
+        assert(*opt == "123");
+        assert(s.empty());
+    }
+    {
+        std::unique_ptr<int> s(new int(3));
+        optional<std::unique_ptr<int>> opt = make_optional(std::move(s));
+        assert(**opt == 3);
+        assert(s == nullptr);
+    }
+#endif  // _LIBCPP_STD_VER > 11
+}

Added: libcxx/trunk/test/std/experimental/optional/optional.specalg/swap.pass.cpp
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/test/std/experimental/optional/optional.specalg/swap.pass.cpp?rev=224658&view=auto
==============================================================================
--- libcxx/trunk/test/std/experimental/optional/optional.specalg/swap.pass.cpp (added)
+++ libcxx/trunk/test/std/experimental/optional/optional.specalg/swap.pass.cpp Fri Dec 19 19:40:03 2014
@@ -0,0 +1,305 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <optional>
+
+// template <class T> void swap(optional<T>& x, optional<T>& y)
+//     noexcept(noexcept(x.swap(y)));
+
+#include <experimental/optional>
+#include <type_traits>
+#include <cassert>
+
+#if _LIBCPP_STD_VER > 11
+
+using std::experimental::optional;
+
+class X
+{
+    int i_;
+public:
+    static unsigned dtor_called;
+    X(int i) : i_(i) {}
+    X(X&& x) = default;
+    X& operator=(X&&) = default;
+    ~X() {++dtor_called;}
+
+    friend bool operator==(const X& x, const X& y) {return x.i_ == y.i_;}
+};
+
+unsigned X::dtor_called = 0;
+
+class Y
+{
+    int i_;
+public:
+    static unsigned dtor_called;
+    Y(int i) : i_(i) {}
+    Y(Y&&) = default;
+    ~Y() {++dtor_called;}
+
+    friend constexpr bool operator==(const Y& x, const Y& y) {return x.i_ == y.i_;}
+    friend void swap(Y& x, Y& y) {std::swap(x.i_, y.i_);}
+};
+
+unsigned Y::dtor_called = 0;
+
+class Z
+{
+    int i_;
+public:
+    Z(int i) : i_(i) {}
+    Z(Z&&) {throw 7;}
+
+    friend constexpr bool operator==(const Z& x, const Z& y) {return x.i_ == y.i_;}
+    friend void swap(Z& x, Z& y) {throw 6;}
+};
+
+
+#endif  // _LIBCPP_STD_VER > 11
+
+int main()
+{
+#if _LIBCPP_STD_VER > 11
+    {
+        optional<int> opt1;
+        optional<int> opt2;
+        static_assert(noexcept(swap(opt1, opt2)) == true, "");
+        assert(static_cast<bool>(opt1) == false);
+        assert(static_cast<bool>(opt2) == false);
+        swap(opt1, opt2);
+        assert(static_cast<bool>(opt1) == false);
+        assert(static_cast<bool>(opt2) == false);
+    }
+    {
+        optional<int> opt1(1);
+        optional<int> opt2;
+        static_assert(noexcept(swap(opt1, opt2)) == true, "");
+        assert(static_cast<bool>(opt1) == true);
+        assert(*opt1 == 1);
+        assert(static_cast<bool>(opt2) == false);
+        swap(opt1, opt2);
+        assert(static_cast<bool>(opt1) == false);
+        assert(static_cast<bool>(opt2) == true);
+        assert(*opt2 == 1);
+    }
+    {
+        optional<int> opt1;
+        optional<int> opt2(2);
+        static_assert(noexcept(swap(opt1, opt2)) == true, "");
+        assert(static_cast<bool>(opt1) == false);
+        assert(static_cast<bool>(opt2) == true);
+        assert(*opt2 == 2);
+        swap(opt1, opt2);
+        assert(static_cast<bool>(opt1) == true);
+        assert(*opt1 == 2);
+        assert(static_cast<bool>(opt2) == false);
+    }
+    {
+        optional<int> opt1(1);
+        optional<int> opt2(2);
+        static_assert(noexcept(swap(opt1, opt2)) == true, "");
+        assert(static_cast<bool>(opt1) == true);
+        assert(*opt1 == 1);
+        assert(static_cast<bool>(opt2) == true);
+        assert(*opt2 == 2);
+        swap(opt1, opt2);
+        assert(static_cast<bool>(opt1) == true);
+        assert(*opt1 == 2);
+        assert(static_cast<bool>(opt2) == true);
+        assert(*opt2 == 1);
+    }
+    {
+        optional<X> opt1;
+        optional<X> opt2;
+        static_assert(noexcept(swap(opt1, opt2)) == true, "");
+        assert(static_cast<bool>(opt1) == false);
+        assert(static_cast<bool>(opt2) == false);
+        swap(opt1, opt2);
+        assert(static_cast<bool>(opt1) == false);
+        assert(static_cast<bool>(opt2) == false);
+        assert(X::dtor_called == 0);
+    }
+    {
+        optional<X> opt1(1);
+        optional<X> opt2;
+        static_assert(noexcept(swap(opt1, opt2)) == true, "");
+        assert(static_cast<bool>(opt1) == true);
+        assert(*opt1 == 1);
+        assert(static_cast<bool>(opt2) == false);
+        X::dtor_called = 0;
+        swap(opt1, opt2);
+        assert(X::dtor_called == 1);
+        assert(static_cast<bool>(opt1) == false);
+        assert(static_cast<bool>(opt2) == true);
+        assert(*opt2 == 1);
+    }
+    {
+        optional<X> opt1;
+        optional<X> opt2(2);
+        static_assert(noexcept(swap(opt1, opt2)) == true, "");
+        assert(static_cast<bool>(opt1) == false);
+        assert(static_cast<bool>(opt2) == true);
+        assert(*opt2 == 2);
+        X::dtor_called = 0;
+        swap(opt1, opt2);
+        assert(X::dtor_called == 1);
+        assert(static_cast<bool>(opt1) == true);
+        assert(*opt1 == 2);
+        assert(static_cast<bool>(opt2) == false);
+    }
+    {
+        optional<X> opt1(1);
+        optional<X> opt2(2);
+        static_assert(noexcept(swap(opt1, opt2)) == true, "");
+        assert(static_cast<bool>(opt1) == true);
+        assert(*opt1 == 1);
+        assert(static_cast<bool>(opt2) == true);
+        assert(*opt2 == 2);
+        X::dtor_called = 0;
+        swap(opt1, opt2);
+        assert(X::dtor_called == 1);  // from inside std::swap
+        assert(static_cast<bool>(opt1) == true);
+        assert(*opt1 == 2);
+        assert(static_cast<bool>(opt2) == true);
+        assert(*opt2 == 1);
+    }
+    {
+        optional<Y> opt1;
+        optional<Y> opt2;
+        static_assert(noexcept(swap(opt1, opt2)) == false, "");
+        assert(static_cast<bool>(opt1) == false);
+        assert(static_cast<bool>(opt2) == false);
+        swap(opt1, opt2);
+        assert(static_cast<bool>(opt1) == false);
+        assert(static_cast<bool>(opt2) == false);
+        assert(Y::dtor_called == 0);
+    }
+    {
+        optional<Y> opt1(1);
+        optional<Y> opt2;
+        static_assert(noexcept(swap(opt1, opt2)) == false, "");
+        assert(static_cast<bool>(opt1) == true);
+        assert(*opt1 == 1);
+        assert(static_cast<bool>(opt2) == false);
+        Y::dtor_called = 0;
+        swap(opt1, opt2);
+        assert(Y::dtor_called == 1);
+        assert(static_cast<bool>(opt1) == false);
+        assert(static_cast<bool>(opt2) == true);
+        assert(*opt2 == 1);
+    }
+    {
+        optional<Y> opt1;
+        optional<Y> opt2(2);
+        static_assert(noexcept(swap(opt1, opt2)) == false, "");
+        assert(static_cast<bool>(opt1) == false);
+        assert(static_cast<bool>(opt2) == true);
+        assert(*opt2 == 2);
+        Y::dtor_called = 0;
+        swap(opt1, opt2);
+        assert(Y::dtor_called == 1);
+        assert(static_cast<bool>(opt1) == true);
+        assert(*opt1 == 2);
+        assert(static_cast<bool>(opt2) == false);
+    }
+    {
+        optional<Y> opt1(1);
+        optional<Y> opt2(2);
+        static_assert(noexcept(swap(opt1, opt2)) == false, "");
+        assert(static_cast<bool>(opt1) == true);
+        assert(*opt1 == 1);
+        assert(static_cast<bool>(opt2) == true);
+        assert(*opt2 == 2);
+        Y::dtor_called = 0;
+        swap(opt1, opt2);
+        assert(Y::dtor_called == 0);
+        assert(static_cast<bool>(opt1) == true);
+        assert(*opt1 == 2);
+        assert(static_cast<bool>(opt2) == true);
+        assert(*opt2 == 1);
+    }
+    {
+        optional<Z> opt1;
+        optional<Z> opt2;
+        static_assert(noexcept(swap(opt1, opt2)) == false, "");
+        assert(static_cast<bool>(opt1) == false);
+        assert(static_cast<bool>(opt2) == false);
+        swap(opt1, opt2);
+        assert(static_cast<bool>(opt1) == false);
+        assert(static_cast<bool>(opt2) == false);
+    }
+    {
+        optional<Z> opt1;
+        opt1.emplace(1);
+        optional<Z> opt2;
+        static_assert(noexcept(swap(opt1, opt2)) == false, "");
+        assert(static_cast<bool>(opt1) == true);
+        assert(*opt1 == 1);
+        assert(static_cast<bool>(opt2) == false);
+        try
+        {
+            swap(opt1, opt2);
+            assert(false);
+        }
+        catch (int i)
+        {
+            assert(i == 7);
+        }
+        assert(static_cast<bool>(opt1) == true);
+        assert(*opt1 == 1);
+        assert(static_cast<bool>(opt2) == false);
+    }
+    {
+        optional<Z> opt1;
+        optional<Z> opt2;
+        opt2.emplace(2);
+        static_assert(noexcept(swap(opt1, opt2)) == false, "");
+        assert(static_cast<bool>(opt1) == false);
+        assert(static_cast<bool>(opt2) == true);
+        assert(*opt2 == 2);
+        try
+        {
+            swap(opt1, opt2);
+            assert(false);
+        }
+        catch (int i)
+        {
+            assert(i == 7);
+        }
+        assert(static_cast<bool>(opt1) == false);
+        assert(static_cast<bool>(opt2) == true);
+        assert(*opt2 == 2);
+    }
+    {
+        optional<Z> opt1;
+        opt1.emplace(1);
+        optional<Z> opt2;
+        opt2.emplace(2);
+        static_assert(noexcept(swap(opt1, opt2)) == false, "");
+        assert(static_cast<bool>(opt1) == true);
+        assert(*opt1 == 1);
+        assert(static_cast<bool>(opt2) == true);
+        assert(*opt2 == 2);
+        try
+        {
+            swap(opt1, opt2);
+            assert(false);
+        }
+        catch (int i)
+        {
+            assert(i == 6);
+        }
+        assert(static_cast<bool>(opt1) == true);
+        assert(*opt1 == 1);
+        assert(static_cast<bool>(opt2) == true);
+        assert(*opt2 == 2);
+    }
+#endif  // _LIBCPP_STD_VER > 11
+}

Added: libcxx/trunk/test/std/experimental/optional/optional.syn/optional_const_in_place_t.fail.cpp
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/test/std/experimental/optional/optional.syn/optional_const_in_place_t.fail.cpp?rev=224658&view=auto
==============================================================================
--- libcxx/trunk/test/std/experimental/optional/optional.syn/optional_const_in_place_t.fail.cpp (added)
+++ libcxx/trunk/test/std/experimental/optional/optional.syn/optional_const_in_place_t.fail.cpp Fri Dec 19 19:40:03 2014
@@ -0,0 +1,28 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <optional>
+
+// A program that necessitates the instantiation of template optional for
+// (possibly cv-qualified) in_place_t is ill-formed.
+
+#include <experimental/optional>
+
+int main()
+{
+#if _LIBCPP_STD_VER > 11
+    using std::experimental::optional;
+    using std::experimental::in_place_t;
+    using std::experimental::in_place;
+
+    optional<const in_place_t> opt;
+#else
+#error
+#endif  // _LIBCPP_STD_VER > 11
+}

Added: libcxx/trunk/test/std/experimental/optional/optional.syn/optional_const_lvalue_ref.fail.cpp
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/test/std/experimental/optional/optional.syn/optional_const_lvalue_ref.fail.cpp?rev=224658&view=auto
==============================================================================
--- libcxx/trunk/test/std/experimental/optional/optional.syn/optional_const_lvalue_ref.fail.cpp (added)
+++ libcxx/trunk/test/std/experimental/optional/optional.syn/optional_const_lvalue_ref.fail.cpp Fri Dec 19 19:40:03 2014
@@ -0,0 +1,26 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <optional>
+
+// A program that necessitates the instantiation of template optional for a
+// reference type is ill-formed.
+
+#include <experimental/optional>
+
+int main()
+{
+#if _LIBCPP_STD_VER > 11
+    using std::experimental::optional;
+
+    optional<const int&> opt;
+#else
+#error
+#endif  // _LIBCPP_STD_VER > 11
+}

Added: libcxx/trunk/test/std/experimental/optional/optional.syn/optional_const_nullopt_t.fail.cpp
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/test/std/experimental/optional/optional.syn/optional_const_nullopt_t.fail.cpp?rev=224658&view=auto
==============================================================================
--- libcxx/trunk/test/std/experimental/optional/optional.syn/optional_const_nullopt_t.fail.cpp (added)
+++ libcxx/trunk/test/std/experimental/optional/optional.syn/optional_const_nullopt_t.fail.cpp Fri Dec 19 19:40:03 2014
@@ -0,0 +1,28 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <optional>
+
+// A program that necessitates the instantiation of template optional for
+// (possibly cv-qualified) null_opt_t is ill-formed.
+
+#include <experimental/optional>
+
+int main()
+{
+#if _LIBCPP_STD_VER > 11
+    using std::experimental::optional;
+    using std::experimental::nullopt_t;
+    using std::experimental::nullopt;
+
+    optional<const nullopt_t> opt;
+#else
+#error
+#endif  // _LIBCPP_STD_VER > 11
+}

Added: libcxx/trunk/test/std/experimental/optional/optional.syn/optional_in_place_t.fail.cpp
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/test/std/experimental/optional/optional.syn/optional_in_place_t.fail.cpp?rev=224658&view=auto
==============================================================================
--- libcxx/trunk/test/std/experimental/optional/optional.syn/optional_in_place_t.fail.cpp (added)
+++ libcxx/trunk/test/std/experimental/optional/optional.syn/optional_in_place_t.fail.cpp Fri Dec 19 19:40:03 2014
@@ -0,0 +1,28 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <optional>
+
+// A program that necessitates the instantiation of template optional for
+// (possibly cv-qualified) in_place_t is ill-formed.
+
+#include <experimental/optional>
+
+int main()
+{
+#if _LIBCPP_STD_VER > 11
+    using std::experimental::optional;
+    using std::experimental::in_place_t;
+    using std::experimental::in_place;
+
+    optional<in_place_t> opt;
+#else
+#error
+#endif  // _LIBCPP_STD_VER > 11
+}

Added: libcxx/trunk/test/std/experimental/optional/optional.syn/optional_includes_initializer_list.pass.cpp
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/test/std/experimental/optional/optional.syn/optional_includes_initializer_list.pass.cpp?rev=224658&view=auto
==============================================================================
--- libcxx/trunk/test/std/experimental/optional/optional.syn/optional_includes_initializer_list.pass.cpp (added)
+++ libcxx/trunk/test/std/experimental/optional/optional.syn/optional_includes_initializer_list.pass.cpp Fri Dec 19 19:40:03 2014
@@ -0,0 +1,23 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <optional>
+
+// #include <initializer_list>
+
+#include <experimental/optional>
+
+int main()
+{
+#if _LIBCPP_STD_VER > 11
+    using std::experimental::optional;
+
+    std::initializer_list<int> list;
+#endif  // _LIBCPP_STD_VER > 11
+}

Added: libcxx/trunk/test/std/experimental/optional/optional.syn/optional_lvalue_ref.fail.cpp
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/test/std/experimental/optional/optional.syn/optional_lvalue_ref.fail.cpp?rev=224658&view=auto
==============================================================================
--- libcxx/trunk/test/std/experimental/optional/optional.syn/optional_lvalue_ref.fail.cpp (added)
+++ libcxx/trunk/test/std/experimental/optional/optional.syn/optional_lvalue_ref.fail.cpp Fri Dec 19 19:40:03 2014
@@ -0,0 +1,26 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <optional>
+
+// A program that necessitates the instantiation of template optional for a
+// reference type is ill-formed.
+
+#include <experimental/optional>
+
+int main()
+{
+#if _LIBCPP_STD_VER > 11
+    using std::experimental::optional;
+
+    optional<int&> opt;
+#else
+#error
+#endif  // _LIBCPP_STD_VER > 11
+}

Added: libcxx/trunk/test/std/experimental/optional/optional.syn/optional_nullopt_t.fail.cpp
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/test/std/experimental/optional/optional.syn/optional_nullopt_t.fail.cpp?rev=224658&view=auto
==============================================================================
--- libcxx/trunk/test/std/experimental/optional/optional.syn/optional_nullopt_t.fail.cpp (added)
+++ libcxx/trunk/test/std/experimental/optional/optional.syn/optional_nullopt_t.fail.cpp Fri Dec 19 19:40:03 2014
@@ -0,0 +1,28 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <optional>
+
+// A program that necessitates the instantiation of template optional for
+// (possibly cv-qualified) null_opt_t is ill-formed.
+
+#include <experimental/optional>
+
+int main()
+{
+#if _LIBCPP_STD_VER > 11
+    using std::experimental::optional;
+    using std::experimental::nullopt_t;
+    using std::experimental::nullopt;
+
+    optional<nullopt_t> opt;
+#else
+#error
+#endif  // _LIBCPP_STD_VER > 11
+}

Added: libcxx/trunk/test/std/experimental/optional/optional.syn/optional_rvalue_ref.fail.cpp
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/test/std/experimental/optional/optional.syn/optional_rvalue_ref.fail.cpp?rev=224658&view=auto
==============================================================================
--- libcxx/trunk/test/std/experimental/optional/optional.syn/optional_rvalue_ref.fail.cpp (added)
+++ libcxx/trunk/test/std/experimental/optional/optional.syn/optional_rvalue_ref.fail.cpp Fri Dec 19 19:40:03 2014
@@ -0,0 +1,26 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <optional>
+
+// A program that necessitates the instantiation of template optional for a
+// reference type is ill-formed.
+
+#include <experimental/optional>
+
+int main()
+{
+#if _LIBCPP_STD_VER > 11
+    using std::experimental::optional;
+
+    optional<int&&> opt;
+#else
+#error
+#endif  // _LIBCPP_STD_VER > 11
+}

Added: libcxx/trunk/test/std/experimental/optional/version.pass.cpp
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/test/std/experimental/optional/version.pass.cpp?rev=224658&view=auto
==============================================================================
--- libcxx/trunk/test/std/experimental/optional/version.pass.cpp (added)
+++ libcxx/trunk/test/std/experimental/optional/version.pass.cpp Fri Dec 19 19:40:03 2014
@@ -0,0 +1,20 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <optional>
+
+#include <experimental/optional>
+
+#ifndef _LIBCPP_VERSION
+#error _LIBCPP_VERSION not defined
+#endif
+
+int main()
+{
+}

Added: libcxx/trunk/test/std/experimental/string.view/nothing_to_do.pass.cpp
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/test/std/experimental/string.view/nothing_to_do.pass.cpp?rev=224658&view=auto
==============================================================================
--- libcxx/trunk/test/std/experimental/string.view/nothing_to_do.pass.cpp (added)
+++ libcxx/trunk/test/std/experimental/string.view/nothing_to_do.pass.cpp Fri Dec 19 19:40:03 2014
@@ -0,0 +1,12 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#include <experimental/string_view>
+
+int main () {}

Added: libcxx/trunk/test/std/experimental/string.view/string.view.access/at.pass.cpp
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/test/std/experimental/string.view/string.view.access/at.pass.cpp?rev=224658&view=auto
==============================================================================
--- libcxx/trunk/test/std/experimental/string.view/string.view.access/at.pass.cpp (added)
+++ libcxx/trunk/test/std/experimental/string.view/string.view.access/at.pass.cpp Fri Dec 19 19:40:03 2014
@@ -0,0 +1,57 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// NOTE: Older versions of clang have a bug where they fail to evalute
+// string_view::at as a constant expression.
+// XFAIL: apple-clang-6.0, clang-3.4, clang-3.3
+
+// <string_view>
+
+// constexpr const _CharT& at(size_type _pos) const;
+
+#include <experimental/string_view>
+#include <cassert>
+
+template <typename CharT>
+void test ( const CharT *s, size_t len ) {
+    std::experimental::basic_string_view<CharT> sv ( s, len );
+    assert ( sv.length() == len );
+    for ( size_t i = 0; i < len; ++i ) {
+        assert (  sv.at(i) == s[i] );
+        assert ( &sv.at(i) == s + i );
+        }
+
+    try { sv.at(len); } catch ( const std::out_of_range & ) { return ; }
+    assert ( false );
+    }
+    
+int main () {
+    test ( "ABCDE", 5 );
+    test ( "a", 1 );
+
+    test ( L"ABCDE", 5 );
+    test ( L"a", 1 );
+
+#if __cplusplus >= 201103L
+    test ( u"ABCDE", 5 );
+    test ( u"a", 1 );
+
+    test ( U"ABCDE", 5 );
+    test ( U"a", 1 );
+#endif
+
+#if __cplusplus >= 201103L
+    {
+    constexpr std::experimental::basic_string_view<char> sv ( "ABC", 2 );
+    static_assert ( sv.length() ==  2,  "" );
+    static_assert ( sv.at(0) == 'A', "" );
+    static_assert ( sv.at(1) == 'B', "" );
+    }
+#endif
+}

Added: libcxx/trunk/test/std/experimental/string.view/string.view.access/back.pass.cpp
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/test/std/experimental/string.view/string.view.access/back.pass.cpp?rev=224658&view=auto
==============================================================================
--- libcxx/trunk/test/std/experimental/string.view/string.view.access/back.pass.cpp (added)
+++ libcxx/trunk/test/std/experimental/string.view/string.view.access/back.pass.cpp Fri Dec 19 19:40:03 2014
@@ -0,0 +1,48 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+
+// <string_view>
+
+// constexpr const _CharT& front();
+
+#include <experimental/string_view>
+#include <cassert>
+
+template <typename CharT>
+bool test ( const CharT *s, size_t len ) {
+    std::experimental::basic_string_view<CharT> sv ( s, len );
+    assert ( sv.length() == len );
+    assert ( sv.back() == s[len-1] );
+    return &sv.back() == s + len - 1;
+    }
+    
+int main () {
+    assert ( test ( "ABCDE", 5 ));
+    assert ( test ( "a", 1 ));
+
+    assert ( test ( L"ABCDE", 5 ));
+    assert ( test ( L"a", 1 ));
+
+#if __cplusplus >= 201103L
+    assert ( test ( u"ABCDE", 5 ));
+    assert ( test ( u"a", 1 ));
+
+    assert ( test ( U"ABCDE", 5 ));
+    assert ( test ( U"a", 1 ));
+#endif
+
+#if __cplusplus >= 201103L
+    {
+    constexpr std::experimental::basic_string_view<char> sv ( "ABC", 2 );
+    static_assert ( sv.length() ==  2,  "" );
+    static_assert ( sv.back()  == 'B', "" );
+    }
+#endif
+}

Added: libcxx/trunk/test/std/experimental/string.view/string.view.access/data.pass.cpp
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/test/std/experimental/string.view/string.view.access/data.pass.cpp?rev=224658&view=auto
==============================================================================
--- libcxx/trunk/test/std/experimental/string.view/string.view.access/data.pass.cpp (added)
+++ libcxx/trunk/test/std/experimental/string.view/string.view.access/data.pass.cpp Fri Dec 19 19:40:03 2014
@@ -0,0 +1,48 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+
+// <string_view>
+
+// constexpr const _CharT* data() const noexcept;
+
+#include <experimental/string_view>
+#include <cassert>
+
+template <typename CharT>
+void test ( const CharT *s, size_t len ) {
+    std::experimental::basic_string_view<CharT> sv ( s, len );
+    assert ( sv.length() == len );
+    assert ( sv.data() == s );
+    }
+    
+int main () {
+    test ( "ABCDE", 5 );
+    test ( "a", 1 );
+
+    test ( L"ABCDE", 5 );
+    test ( L"a", 1 );
+
+#if __cplusplus >= 201103L
+    test ( u"ABCDE", 5 );
+    test ( u"a", 1 );
+
+    test ( U"ABCDE", 5 );
+    test ( U"a", 1 );
+#endif
+
+#if _LIBCPP_STD_VER > 11
+    {
+    constexpr const char *s = "ABC";
+    constexpr std::experimental::basic_string_view<char> sv( s, 2 );
+    static_assert( sv.length() ==  2,  "" );
+    static_assert( sv.data() == s, "" );
+    }
+#endif
+}

Added: libcxx/trunk/test/std/experimental/string.view/string.view.access/front.pass.cpp
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/test/std/experimental/string.view/string.view.access/front.pass.cpp?rev=224658&view=auto
==============================================================================
--- libcxx/trunk/test/std/experimental/string.view/string.view.access/front.pass.cpp (added)
+++ libcxx/trunk/test/std/experimental/string.view/string.view.access/front.pass.cpp Fri Dec 19 19:40:03 2014
@@ -0,0 +1,48 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+
+// <string_view>
+
+// constexpr const _CharT& back();
+
+#include <experimental/string_view>
+#include <cassert>
+
+template <typename CharT>
+bool test ( const CharT *s, size_t len ) {
+    std::experimental::basic_string_view<CharT> sv ( s, len );
+    assert ( sv.length() == len );
+    assert ( sv.front() == s[0] );
+    return &sv.front() == s;
+    }
+    
+int main () {
+    assert ( test ( "ABCDE", 5 ));
+    assert ( test ( "a", 1 ));
+
+    assert ( test ( L"ABCDE", 5 ));
+    assert ( test ( L"a", 1 ));
+
+#if __cplusplus >= 201103L
+    assert ( test ( u"ABCDE", 5 ));
+    assert ( test ( u"a", 1 ));
+
+    assert ( test ( U"ABCDE", 5 ));
+    assert ( test ( U"a", 1 ));
+#endif
+
+#if __cplusplus >= 201103L
+    {
+    constexpr std::experimental::basic_string_view<char> sv ( "ABC", 2 );
+    static_assert ( sv.length() ==  2,  "" );
+    static_assert ( sv.front()  == 'A', "" );
+    }
+#endif
+}

Added: libcxx/trunk/test/std/experimental/string.view/string.view.access/index.pass.cpp
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/test/std/experimental/string.view/string.view.access/index.pass.cpp?rev=224658&view=auto
==============================================================================
--- libcxx/trunk/test/std/experimental/string.view/string.view.access/index.pass.cpp (added)
+++ libcxx/trunk/test/std/experimental/string.view/string.view.access/index.pass.cpp Fri Dec 19 19:40:03 2014
@@ -0,0 +1,51 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+
+// <string_view>
+
+// constexpr const _CharT& operator[](size_type _pos) const;
+
+#include <experimental/string_view>
+#include <cassert>
+
+template <typename CharT>
+void test ( const CharT *s, size_t len ) {
+    std::experimental::basic_string_view<CharT> sv ( s, len );
+    assert ( sv.length() == len );
+    for ( size_t i = 0; i < len; ++i ) {
+        assert ( sv[i] == s[i] );
+        assert ( &sv[i] == s + i );
+        }
+    }
+    
+int main () {
+    test ( "ABCDE", 5 );
+    test ( "a", 1 );
+
+    test ( L"ABCDE", 5 );
+    test ( L"a", 1 );
+
+#if __cplusplus >= 201103L
+    test ( u"ABCDE", 5 );
+    test ( u"a", 1 );
+
+    test ( U"ABCDE", 5 );
+    test ( U"a", 1 );
+#endif
+
+#if _LIBCPP_STD_VER > 11
+    {
+    constexpr std::experimental::basic_string_view<char> sv ( "ABC", 2 );
+    static_assert ( sv.length() ==  2,  "" );
+    static_assert ( sv[0]  == 'A', "" );
+    static_assert ( sv[1]  == 'B', "" );
+    }
+#endif
+}

Added: libcxx/trunk/test/std/experimental/string.view/string.view.capacity/capacity.pass.cpp
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/test/std/experimental/string.view/string.view.capacity/capacity.pass.cpp?rev=224658&view=auto
==============================================================================
--- libcxx/trunk/test/std/experimental/string.view/string.view.capacity/capacity.pass.cpp (added)
+++ libcxx/trunk/test/std/experimental/string.view/string.view.capacity/capacity.pass.cpp Fri Dec 19 19:40:03 2014
@@ -0,0 +1,87 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+
+// <string_view>
+
+// [string.view.capacity], capacity
+// constexpr size_type size()     const noexcept;
+// constexpr size_type length()   const noexcept;
+// constexpr size_type max_size() const noexcept;
+// constexpr bool empty()         const noexcept;
+
+#include <experimental/string_view>
+#include <cassert>
+
+template<typename SV>
+void test1 () {
+#if _LIBCPP_STD_VER > 11
+    {
+    constexpr SV sv1;
+    static_assert ( sv1.size() == 0, "" );
+    static_assert ( sv1.empty(), "");
+    static_assert ( sv1.size() == sv1.length(), "" );
+    static_assert ( sv1.max_size() > sv1.size(), "");
+    }
+#endif
+    
+    {
+    SV sv1;
+    assert ( sv1.size() == 0 );
+    assert ( sv1.empty());
+    assert ( sv1.size() == sv1.length());
+    assert ( sv1.max_size() > sv1.size());
+    }
+}
+
+template<typename CharT>
+void test2 ( const CharT *s, size_t len ) {
+    {
+    std::experimental::basic_string_view<CharT> sv1 ( s );
+    assert ( sv1.size() == len );
+    assert ( sv1.data() == s );
+    assert ( sv1.empty() == (len == 0));
+    assert ( sv1.size() == sv1.length());
+    assert ( sv1.max_size() > sv1.size());
+    }
+}
+
+int main () {
+    typedef std::experimental::string_view    string_view;
+    typedef std::experimental::u16string_view u16string_view;
+    typedef std::experimental::u32string_view u32string_view;
+    typedef std::experimental::wstring_view   wstring_view;
+
+    test1<string_view> ();
+    test1<u16string_view> ();
+    test1<u32string_view> ();
+    test1<wstring_view> ();
+
+    test2 ( "ABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDE", 105 );
+    test2 ( "ABCDE", 5 );
+    test2 ( "a", 1 );
+    test2 ( "", 0 );
+
+    test2 ( L"ABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDE", 105 );
+    test2 ( L"ABCDE", 5 );
+    test2 ( L"a", 1 );
+    test2 ( L"", 0 );
+
+#if __cplusplus >= 201103L
+    test2 ( u"ABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDE", 105 );
+    test2 ( u"ABCDE", 5 );
+    test2 ( u"a", 1 );
+    test2 ( u"", 0 );
+
+    test2 ( U"ABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDE", 105 );
+    test2 ( U"ABCDE", 5 );
+    test2 ( U"a", 1 );
+    test2 ( U"", 0 );
+#endif
+}

Added: libcxx/trunk/test/std/experimental/string.view/string.view.comparison/opeq.string_view.pointer.pass.cpp
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/test/std/experimental/string.view/string.view.comparison/opeq.string_view.pointer.pass.cpp?rev=224658&view=auto
==============================================================================
--- libcxx/trunk/test/std/experimental/string.view/string.view.comparison/opeq.string_view.pointer.pass.cpp (added)
+++ libcxx/trunk/test/std/experimental/string.view/string.view.comparison/opeq.string_view.pointer.pass.cpp Fri Dec 19 19:40:03 2014
@@ -0,0 +1,68 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <string>
+
+// template<class charT, class traits>
+//   constexpr bool operator==(basic_string_view<charT,traits> lhs, const charT* rhs);
+// template<class charT, class traits>
+//   constexpr bool operator==(const charT* lhs, basic_string_view<charT,traits> rhs);
+
+#include <experimental/string_view>
+#include <cassert>
+
+#include "constexpr_char_traits.hpp"
+
+template <class S>
+void
+test(S lhs, const typename S::value_type* rhs, bool x)
+{
+    assert((lhs == rhs) == x);
+    assert((rhs == lhs) == x);
+}
+
+int main()
+{
+    {
+    typedef std::experimental::string_view S;
+    test(S(""), "", true);
+    test(S(""), "abcde", false);
+    test(S(""), "abcdefghij", false);
+    test(S(""), "abcdefghijklmnopqrst", false);
+    test(S("abcde"), "", false);
+    test(S("abcde"), "abcde", true);
+    test(S("abcde"), "abcdefghij", false);
+    test(S("abcde"), "abcdefghijklmnopqrst", false);
+    test(S("abcdefghij"), "", false);
+    test(S("abcdefghij"), "abcde", false);
+    test(S("abcdefghij"), "abcdefghij", true);
+    test(S("abcdefghij"), "abcdefghijklmnopqrst", false);
+    test(S("abcdefghijklmnopqrst"), "", false);
+    test(S("abcdefghijklmnopqrst"), "abcde", false);
+    test(S("abcdefghijklmnopqrst"), "abcdefghij", false);
+    test(S("abcdefghijklmnopqrst"), "abcdefghijklmnopqrst", true);
+    }
+
+#if _LIBCPP_STD_VER > 11
+    {
+    typedef std::experimental::basic_string_view<char, constexpr_char_traits<char>> SV;
+    constexpr SV  sv1;
+    constexpr SV  sv2 { "abcde", 5 };
+    static_assert (  sv1     == "", "" );
+    static_assert (  ""      == sv1, "" );
+    static_assert (!(sv1     == "abcde"), "" );
+    static_assert (!("abcde" == sv1), "" );
+    
+    static_assert (  sv2      == "abcde", "" );
+    static_assert (  "abcde"  == sv2, "" );
+    static_assert (!(sv2      == "abcde0"), "" );
+    static_assert (!("abcde0" == sv2), "" );
+    }
+#endif
+}

Added: libcxx/trunk/test/std/experimental/string.view/string.view.comparison/opeq.string_view.string.pass.cpp
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/test/std/experimental/string.view/string.view.comparison/opeq.string_view.string.pass.cpp?rev=224658&view=auto
==============================================================================
--- libcxx/trunk/test/std/experimental/string.view/string.view.comparison/opeq.string_view.string.pass.cpp (added)
+++ libcxx/trunk/test/std/experimental/string.view/string.view.comparison/opeq.string_view.string.pass.cpp Fri Dec 19 19:40:03 2014
@@ -0,0 +1,54 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <string>
+
+// template<class charT, class traits, class Allocator>
+//   bool operator==(const charT* lhs, const basic_string<charT,traits> rhs);
+// template<class charT, class traits, class Allocator>
+//   bool operator==(const basic_string_view<charT,traits> lhs, const CharT* rhs);
+
+#include <experimental/string_view>
+#include <cassert>
+
+#if _LIBCPP_STD_VER > 11
+
+template <class S>
+void
+test(const std::string &lhs, S rhs, bool x)
+{
+    assert((lhs == rhs) == x);
+    assert((rhs == lhs) == x);
+}
+
+int main()
+{
+    {
+    typedef std::experimental::string_view S;
+    test("", S(""), true);
+    test("", S("abcde"), false);
+    test("", S("abcdefghij"), false);
+    test("", S("abcdefghijklmnopqrst"), false);
+    test("abcde", S(""), false);
+    test("abcde", S("abcde"), true);
+    test("abcde", S("abcdefghij"), false);
+    test("abcde", S("abcdefghijklmnopqrst"), false);
+    test("abcdefghij", S(""), false);
+    test("abcdefghij", S("abcde"), false);
+    test("abcdefghij", S("abcdefghij"), true);
+    test("abcdefghij", S("abcdefghijklmnopqrst"), false);
+    test("abcdefghijklmnopqrst", S(""), false);
+    test("abcdefghijklmnopqrst", S("abcde"), false);
+    test("abcdefghijklmnopqrst", S("abcdefghij"), false);
+    test("abcdefghijklmnopqrst", S("abcdefghijklmnopqrst"), true);
+    }
+}
+#else
+int main () {}
+#endif

Added: libcxx/trunk/test/std/experimental/string.view/string.view.comparison/opeq.string_view.string_view.pass.cpp
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/test/std/experimental/string.view/string.view.comparison/opeq.string_view.string_view.pass.cpp?rev=224658&view=auto
==============================================================================
--- libcxx/trunk/test/std/experimental/string.view/string.view.comparison/opeq.string_view.string_view.pass.cpp (added)
+++ libcxx/trunk/test/std/experimental/string.view/string.view.comparison/opeq.string_view.string_view.pass.cpp Fri Dec 19 19:40:03 2014
@@ -0,0 +1,61 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <string_view>
+
+// template<class charT, class traits, class Allocator>
+//   constexpr bool operator==(const basic_string_view<charT,traits> lhs,
+//                   const basic_string_view<charT,traits> rhs);
+
+#include <experimental/string_view>
+#include <cassert>
+
+#include "constexpr_char_traits.hpp"
+
+template <class S>
+void
+test(S lhs, S rhs, bool x)
+{
+    assert((lhs == rhs) == x);
+    assert((rhs == lhs) == x);
+}
+
+int main()
+{
+    {
+    typedef std::experimental::string_view S;
+    test(S(""), S(""), true);
+    test(S(""), S("abcde"), false);
+    test(S(""), S("abcdefghij"), false);
+    test(S(""), S("abcdefghijklmnopqrst"), false);
+    test(S("abcde"), S(""), false);
+    test(S("abcde"), S("abcde"), true);
+    test(S("abcde"), S("abcdefghij"), false);
+    test(S("abcde"), S("abcdefghijklmnopqrst"), false);
+    test(S("abcdefghij"), S(""), false);
+    test(S("abcdefghij"), S("abcde"), false);
+    test(S("abcdefghij"), S("abcdefghij"), true);
+    test(S("abcdefghij"), S("abcdefghijklmnopqrst"), false);
+    test(S("abcdefghijklmnopqrst"), S(""), false);
+    test(S("abcdefghijklmnopqrst"), S("abcde"), false);
+    test(S("abcdefghijklmnopqrst"), S("abcdefghij"), false);
+    test(S("abcdefghijklmnopqrst"), S("abcdefghijklmnopqrst"), true);
+    }
+
+#if _LIBCPP_STD_VER > 11
+    {
+    typedef std::experimental::basic_string_view<char, constexpr_char_traits<char>> SV;
+    constexpr SV  sv1;
+    constexpr SV  sv2;
+    constexpr SV  sv3 { "abcde", 5 };
+    static_assert (  sv1 == sv2, "" );
+    static_assert (!(sv1 == sv3), "" );
+    }
+#endif
+}

Added: libcxx/trunk/test/std/experimental/string.view/string.view.comparison/opge.string_view.pointer.pass.cpp
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/test/std/experimental/string.view/string.view.comparison/opge.string_view.pointer.pass.cpp?rev=224658&view=auto
==============================================================================
--- libcxx/trunk/test/std/experimental/string.view/string.view.comparison/opge.string_view.pointer.pass.cpp (added)
+++ libcxx/trunk/test/std/experimental/string.view/string.view.comparison/opge.string_view.pointer.pass.cpp Fri Dec 19 19:40:03 2014
@@ -0,0 +1,71 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <string>
+
+// template<class charT, class traits, class Allocator>
+//   constexpr bool operator>=(const charT* lhs, basic_string_wiew<charT,traits> rhs);
+// template<class charT, class traits, class Allocator>
+//   constexpr bool operator>=(basic_string_wiew<charT,traits> lhs, const charT* rhs);
+
+#include <experimental/string_view>
+#include <cassert>
+
+#include "constexpr_char_traits.hpp"
+
+template <class S>
+void
+test(const typename S::value_type* lhs, const S& rhs, bool x, bool y)
+{
+    assert((lhs >= rhs) == x);
+    assert((rhs >= lhs) == y);
+}
+
+int main()
+{
+    {
+    typedef std::experimental::string_view S;
+    test("", S(""), true, true);
+    test("", S("abcde"), false, true);
+    test("", S("abcdefghij"), false, true);
+    test("", S("abcdefghijklmnopqrst"), false, true);
+    test("abcde", S(""), true, false);
+    test("abcde", S("abcde"), true, true);
+    test("abcde", S("abcdefghij"), false, true);
+    test("abcde", S("abcdefghijklmnopqrst"), false, true);
+    test("abcdefghij", S(""), true, false);
+    test("abcdefghij", S("abcde"), true, false);
+    test("abcdefghij", S("abcdefghij"), true, true);
+    test("abcdefghij", S("abcdefghijklmnopqrst"), false, true);
+    test("abcdefghijklmnopqrst", S(""), true, false);
+    test("abcdefghijklmnopqrst", S("abcde"), true, false);
+    test("abcdefghijklmnopqrst", S("abcdefghij"), true, false);
+    test("abcdefghijklmnopqrst", S("abcdefghijklmnopqrst"), true, true);
+    }
+
+#if _LIBCPP_STD_VER > 11
+    {
+    typedef std::experimental::basic_string_view<char, constexpr_char_traits<char>> SV;
+    constexpr SV  sv1;
+    constexpr SV  sv2 { "abcde", 5 };
+
+    static_assert (  sv1     >= "", "" );
+    static_assert (  ""      >= sv1, "" );
+    static_assert (!(sv1     >= "abcde"), "" );
+    static_assert (  "abcde" >= sv1, "" );
+    
+    static_assert (  sv2      >= "", "" );
+    static_assert (!(""       >= sv2), "" );
+    static_assert (  sv2      >= "abcde", "" );
+    static_assert (  "abcde"  >= sv2, "" );
+    static_assert (!(sv2      >= "abcde0"), "" );
+    static_assert (  "abcde0" >= sv2, "" );
+    }
+#endif
+}

Added: libcxx/trunk/test/std/experimental/string.view/string.view.comparison/opge.string_view.string.pass.cpp
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/test/std/experimental/string.view/string.view.comparison/opge.string_view.string.pass.cpp?rev=224658&view=auto
==============================================================================
--- libcxx/trunk/test/std/experimental/string.view/string.view.comparison/opge.string_view.string.pass.cpp (added)
+++ libcxx/trunk/test/std/experimental/string.view/string.view.comparison/opge.string_view.string.pass.cpp Fri Dec 19 19:40:03 2014
@@ -0,0 +1,50 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <string>
+
+// template<class charT, class traits, class Allocator>
+//   bool operator>=(const basic_string<charT,traits,Allocator>& lhs,
+//                   basic_string_view<charT,traits> rhs);
+//   bool operator>=(basic_string_view<charT,traits> lhs,
+//            const basic_string<charT,traits,Allocator>&  rhs);
+
+#include <experimental/string_view>
+#include <cassert>
+
+template <class S>
+void
+test(const S& lhs, const typename S::value_type* rhs, bool x, bool y)
+{
+    assert((lhs >= rhs) == x);
+    assert((rhs >= lhs) == y);
+}
+
+int main()
+{
+    {
+    typedef std::experimental::string_view S;
+    test(S(""), "", true, true);
+    test(S(""), "abcde", false, true);
+    test(S(""), "abcdefghij", false, true);
+    test(S(""), "abcdefghijklmnopqrst", false, true);
+    test(S("abcde"), "", true, false);
+    test(S("abcde"), "abcde", true, true);
+    test(S("abcde"), "abcdefghij", false, true);
+    test(S("abcde"), "abcdefghijklmnopqrst", false, true);
+    test(S("abcdefghij"), "", true, false);
+    test(S("abcdefghij"), "abcde", true, false);
+    test(S("abcdefghij"), "abcdefghij", true, true);
+    test(S("abcdefghij"), "abcdefghijklmnopqrst", false, true);
+    test(S("abcdefghijklmnopqrst"), "", true, false);
+    test(S("abcdefghijklmnopqrst"), "abcde", true, false);
+    test(S("abcdefghijklmnopqrst"), "abcdefghij", true, false);
+    test(S("abcdefghijklmnopqrst"), "abcdefghijklmnopqrst", true, true);
+    }
+}

Added: libcxx/trunk/test/std/experimental/string.view/string.view.comparison/opge.string_view.string_view.pass.cpp
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/test/std/experimental/string.view/string.view.comparison/opge.string_view.string_view.pass.cpp?rev=224658&view=auto
==============================================================================
--- libcxx/trunk/test/std/experimental/string.view/string.view.comparison/opge.string_view.string_view.pass.cpp (added)
+++ libcxx/trunk/test/std/experimental/string.view/string.view.comparison/opge.string_view.string_view.pass.cpp Fri Dec 19 19:40:03 2014
@@ -0,0 +1,64 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <string>
+
+// template<class charT, class traits>
+//   constexpr bool operator>=(basic_string_view<charT,traits> lhs,
+//                  basic_string_view<charT,traits> rhs);
+
+#include <experimental/string_view>
+#include <cassert>
+
+#include "constexpr_char_traits.hpp"
+
+template <class S>
+void
+test(const S& lhs, const S& rhs, bool x, bool y)
+{
+    assert((lhs >= rhs) == x);
+    assert((rhs >= lhs) == y);
+}
+
+int main()
+{
+    {
+    typedef std::experimental::string_view S;
+    test(S(""), S(""), true, true);
+    test(S(""), S("abcde"), false, true);
+    test(S(""), S("abcdefghij"), false, true);
+    test(S(""), S("abcdefghijklmnopqrst"), false, true);
+    test(S("abcde"), S(""), true, false);
+    test(S("abcde"), S("abcde"), true, true);
+    test(S("abcde"), S("abcdefghij"), false, true);
+    test(S("abcde"), S("abcdefghijklmnopqrst"), false, true);
+    test(S("abcdefghij"), S(""), true, false);
+    test(S("abcdefghij"), S("abcde"), true, false);
+    test(S("abcdefghij"), S("abcdefghij"), true, true);
+    test(S("abcdefghij"), S("abcdefghijklmnopqrst"), false, true);
+    test(S("abcdefghijklmnopqrst"), S(""), true, false);
+    test(S("abcdefghijklmnopqrst"), S("abcde"), true, false);
+    test(S("abcdefghijklmnopqrst"), S("abcdefghij"), true, false);
+    test(S("abcdefghijklmnopqrst"), S("abcdefghijklmnopqrst"), true, true);
+    }
+
+#if _LIBCPP_STD_VER > 11
+    {
+    typedef std::experimental::basic_string_view<char, constexpr_char_traits<char>> SV;
+    constexpr SV  sv1;
+    constexpr SV  sv2 { "abcde", 5 };
+
+    static_assert (  sv1 >= sv1,  "" );
+    static_assert (  sv2 >= sv2,  "" );
+
+    static_assert (!(sv1 >= sv2), "" );
+    static_assert (  sv2 >= sv1,  "" );
+    }
+#endif
+}

Added: libcxx/trunk/test/std/experimental/string.view/string.view.comparison/opgt.string_view.pointer.pass.cpp
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/test/std/experimental/string.view/string.view.comparison/opgt.string_view.pointer.pass.cpp?rev=224658&view=auto
==============================================================================
--- libcxx/trunk/test/std/experimental/string.view/string.view.comparison/opgt.string_view.pointer.pass.cpp (added)
+++ libcxx/trunk/test/std/experimental/string.view/string.view.comparison/opgt.string_view.pointer.pass.cpp Fri Dec 19 19:40:03 2014
@@ -0,0 +1,71 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <string>
+
+// constexpr template<class charT, class traits, class Allocator>
+//   bool operator>(const charT* lhs, basic_string_wiew<charT,traits> rhs);
+// constexpr template<class charT, class traits, class Allocator>
+//   bool operator>(basic_string_wiew<charT,traits> lhs, const charT* rhs);
+
+#include <experimental/string_view>
+#include <cassert>
+
+#include "constexpr_char_traits.hpp"
+
+template <class S>
+void
+test(const typename S::value_type* lhs, const S& rhs, bool x, bool y)
+{
+    assert((lhs > rhs) == x);
+    assert((rhs > lhs) == y);
+}
+
+int main()
+{
+    {
+    typedef std::experimental::string_view S;
+    test("", S(""), false, false);
+    test("", S("abcde"), false, true);
+    test("", S("abcdefghij"), false, true);
+    test("", S("abcdefghijklmnopqrst"), false, true);
+    test("abcde", S(""), true, false);
+    test("abcde", S("abcde"), false, false);
+    test("abcde", S("abcdefghij"), false, true);
+    test("abcde", S("abcdefghijklmnopqrst"), false, true);
+    test("abcdefghij", S(""), true, false);
+    test("abcdefghij", S("abcde"), true, false);
+    test("abcdefghij", S("abcdefghij"), false, false);
+    test("abcdefghij", S("abcdefghijklmnopqrst"), false, true);
+    test("abcdefghijklmnopqrst", S(""), true, false);
+    test("abcdefghijklmnopqrst", S("abcde"), true, false);
+    test("abcdefghijklmnopqrst", S("abcdefghij"), true, false);
+    test("abcdefghijklmnopqrst", S("abcdefghijklmnopqrst"), false, false);
+    }
+
+#if _LIBCPP_STD_VER > 11
+    {
+    typedef std::experimental::basic_string_view<char, constexpr_char_traits<char>> SV;
+    constexpr SV  sv1;
+    constexpr SV  sv2 { "abcde", 5 };
+
+    static_assert (!(sv1     > ""), "" );
+    static_assert (!(""      > sv1), "" );
+    static_assert (!(sv1     > "abcde"), "" );
+    static_assert (  "abcde" > sv1, "" );
+    
+    static_assert (  sv2      > "", "" );
+    static_assert (!(""       > sv2), "" );
+    static_assert (!(sv2      > "abcde"), "" );
+    static_assert (!("abcde"  > sv2), "" );
+    static_assert (!(sv2      > "abcde0"), "" );
+    static_assert (  "abcde0" > sv2, "" );
+    }
+#endif
+}

Added: libcxx/trunk/test/std/experimental/string.view/string.view.comparison/opgt.string_view.string.pass.cpp
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/test/std/experimental/string.view/string.view.comparison/opgt.string_view.string.pass.cpp?rev=224658&view=auto
==============================================================================
--- libcxx/trunk/test/std/experimental/string.view/string.view.comparison/opgt.string_view.string.pass.cpp (added)
+++ libcxx/trunk/test/std/experimental/string.view/string.view.comparison/opgt.string_view.string.pass.cpp Fri Dec 19 19:40:03 2014
@@ -0,0 +1,50 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <string>
+
+// template<class charT, class traits, class Allocator>
+//   bool operator>(const basic_string<charT,traits,Allocator>& lhs,
+//                   basic_string_view<charT,traits> rhs);
+//   bool operator>(basic_string_view<charT,traits> lhs,
+//            const basic_string<charT,traits,Allocator>&  rhs);
+
+#include <experimental/string_view>
+#include <cassert>
+
+template <class S>
+void
+test(const S& lhs, const typename S::value_type* rhs, bool x, bool y)
+{
+    assert((lhs > rhs) == x);
+    assert((rhs > lhs) == y);
+}
+
+int main()
+{
+    {
+    typedef std::experimental::string_view S;
+    test(S(""), "", false, false);
+    test(S(""), "abcde", false, true);
+    test(S(""), "abcdefghij", false, true);
+    test(S(""), "abcdefghijklmnopqrst", false, true);
+    test(S("abcde"), "", true, false);
+    test(S("abcde"), "abcde", false, false);
+    test(S("abcde"), "abcdefghij", false, true);
+    test(S("abcde"), "abcdefghijklmnopqrst", false, true);
+    test(S("abcdefghij"), "", true, false);
+    test(S("abcdefghij"), "abcde", true, false);
+    test(S("abcdefghij"), "abcdefghij", false, false);
+    test(S("abcdefghij"), "abcdefghijklmnopqrst", false, true);
+    test(S("abcdefghijklmnopqrst"), "", true, false);
+    test(S("abcdefghijklmnopqrst"), "abcde", true, false);
+    test(S("abcdefghijklmnopqrst"), "abcdefghij", true, false);
+    test(S("abcdefghijklmnopqrst"), "abcdefghijklmnopqrst", false, false);
+    }
+}

Added: libcxx/trunk/test/std/experimental/string.view/string.view.comparison/opgt.string_view.string_view.pass.cpp
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/test/std/experimental/string.view/string.view.comparison/opgt.string_view.string_view.pass.cpp?rev=224658&view=auto
==============================================================================
--- libcxx/trunk/test/std/experimental/string.view/string.view.comparison/opgt.string_view.string_view.pass.cpp (added)
+++ libcxx/trunk/test/std/experimental/string.view/string.view.comparison/opgt.string_view.string_view.pass.cpp Fri Dec 19 19:40:03 2014
@@ -0,0 +1,64 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <string>
+
+// template<class charT, class traits>
+//  constexpr bool operator>(basic_string_view<charT,traits> lhs,
+//                  basic_string_view<charT,traits> rhs);
+
+#include <experimental/string_view>
+#include <cassert>
+
+#include "constexpr_char_traits.hpp"
+
+template <class S>
+void
+test(const S& lhs, const S& rhs, bool x, bool y)
+{
+    assert((lhs > rhs) == x);
+    assert((rhs > lhs) == y);
+}
+
+int main()
+{
+    {
+    typedef std::experimental::string_view S;
+    test(S(""), S(""), false, false);
+    test(S(""), S("abcde"), false, true);
+    test(S(""), S("abcdefghij"), false, true);
+    test(S(""), S("abcdefghijklmnopqrst"), false, true);
+    test(S("abcde"), S(""), true, false);
+    test(S("abcde"), S("abcde"), false, false);
+    test(S("abcde"), S("abcdefghij"), false, true);
+    test(S("abcde"), S("abcdefghijklmnopqrst"), false, true);
+    test(S("abcdefghij"), S(""), true, false);
+    test(S("abcdefghij"), S("abcde"), true, false);
+    test(S("abcdefghij"), S("abcdefghij"), false, false);
+    test(S("abcdefghij"), S("abcdefghijklmnopqrst"), false, true);
+    test(S("abcdefghijklmnopqrst"), S(""), true, false);
+    test(S("abcdefghijklmnopqrst"), S("abcde"), true, false);
+    test(S("abcdefghijklmnopqrst"), S("abcdefghij"), true, false);
+    test(S("abcdefghijklmnopqrst"), S("abcdefghijklmnopqrst"), false, false);
+    }
+
+#if _LIBCPP_STD_VER > 11
+    {
+    typedef std::experimental::basic_string_view<char, constexpr_char_traits<char>> SV;
+    constexpr SV  sv1;
+    constexpr SV  sv2 { "abcde", 5 };
+
+    static_assert (!(sv1 > sv1), "" );
+    static_assert (!(sv2 > sv2), "" );
+
+    static_assert (!(sv1 > sv2), "" );
+    static_assert (  sv2 > sv1, "" );
+    }
+#endif
+}

Added: libcxx/trunk/test/std/experimental/string.view/string.view.comparison/ople.string_view.pointer.pass.cpp
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/test/std/experimental/string.view/string.view.comparison/ople.string_view.pointer.pass.cpp?rev=224658&view=auto
==============================================================================
--- libcxx/trunk/test/std/experimental/string.view/string.view.comparison/ople.string_view.pointer.pass.cpp (added)
+++ libcxx/trunk/test/std/experimental/string.view/string.view.comparison/ople.string_view.pointer.pass.cpp Fri Dec 19 19:40:03 2014
@@ -0,0 +1,71 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <string>
+
+// template<class charT, class traits, class Allocator>
+//   constexpr bool operator<=(const charT* lhs, basic_string_wiew<charT,traits> rhs);
+// template<class charT, class traits, class Allocator>
+//   constexpr bool operator<=(basic_string_wiew<charT,traits> lhs, const charT* rhs);
+
+#include <experimental/string_view>
+#include <cassert>
+
+#include "constexpr_char_traits.hpp"
+
+template <class S>
+void
+test(const typename S::value_type* lhs, const S& rhs, bool x, bool y)
+{
+    assert((lhs <= rhs) == x);
+    assert((rhs <= lhs) == y);
+}
+
+int main()
+{
+    {
+    typedef std::experimental::string_view S;
+    test("", S(""), true, true);
+    test("", S("abcde"), true, false);
+    test("", S("abcdefghij"), true, false);
+    test("", S("abcdefghijklmnopqrst"), true, false);
+    test("abcde", S(""), false, true);
+    test("abcde", S("abcde"), true, true);
+    test("abcde", S("abcdefghij"), true, false);
+    test("abcde", S("abcdefghijklmnopqrst"), true, false);
+    test("abcdefghij", S(""), false, true);
+    test("abcdefghij", S("abcde"), false, true);
+    test("abcdefghij", S("abcdefghij"), true, true);
+    test("abcdefghij", S("abcdefghijklmnopqrst"), true, false);
+    test("abcdefghijklmnopqrst", S(""), false, true);
+    test("abcdefghijklmnopqrst", S("abcde"), false, true);
+    test("abcdefghijklmnopqrst", S("abcdefghij"), false, true);
+    test("abcdefghijklmnopqrst", S("abcdefghijklmnopqrst"), true, true);
+    }
+
+#if _LIBCPP_STD_VER > 11
+    {
+    typedef std::experimental::basic_string_view<char, constexpr_char_traits<char>> SV;
+    constexpr SV  sv1;
+    constexpr SV  sv2 { "abcde", 5 };
+
+    static_assert (  sv1     <= "", "" );
+    static_assert (  ""      <= sv1, "" );
+    static_assert (  sv1     <= "abcde", "" );
+    static_assert (!("abcde" <= sv1), "" );
+    
+    static_assert (!(sv2      <= ""), "" );
+    static_assert (  ""       <= sv2, "" );
+    static_assert (  sv2      <= "abcde", "" );
+    static_assert (  "abcde"  <= sv2, "" );
+    static_assert (  sv2      <= "abcde0", "" );
+    static_assert (!("abcde0" <= sv2), "" );
+    }
+#endif
+}

Added: libcxx/trunk/test/std/experimental/string.view/string.view.comparison/ople.string_view.string.pass.cpp
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/test/std/experimental/string.view/string.view.comparison/ople.string_view.string.pass.cpp?rev=224658&view=auto
==============================================================================
--- libcxx/trunk/test/std/experimental/string.view/string.view.comparison/ople.string_view.string.pass.cpp (added)
+++ libcxx/trunk/test/std/experimental/string.view/string.view.comparison/ople.string_view.string.pass.cpp Fri Dec 19 19:40:03 2014
@@ -0,0 +1,50 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <string>
+
+// template<class charT, class traits, class Allocator>
+//   bool operator<=(const basic_string<charT,traits,Allocator>& lhs,
+//                   basic_string_view<charT,traits> rhs);
+//   bool operator<=(basic_string_view<charT,traits> lhs,
+//            const basic_string<charT,traits,Allocator>&  rhs);
+
+#include <experimental/string_view>
+#include <cassert>
+
+template <class S>
+void
+test(const S& lhs, const typename S::value_type* rhs, bool x, bool y)
+{
+    assert((lhs <= rhs) == x);
+    assert((rhs <= lhs) == y);
+}
+
+int main()
+{
+    {
+    typedef std::experimental::string_view S;
+    test(S(""), "", true, true);
+    test(S(""), "abcde", true, false);
+    test(S(""), "abcdefghij", true, false);
+    test(S(""), "abcdefghijklmnopqrst", true, false);
+    test(S("abcde"), "", false, true);
+    test(S("abcde"), "abcde", true, true);
+    test(S("abcde"), "abcdefghij", true, false);
+    test(S("abcde"), "abcdefghijklmnopqrst", true, false);
+    test(S("abcdefghij"), "", false, true);
+    test(S("abcdefghij"), "abcde", false, true);
+    test(S("abcdefghij"), "abcdefghij", true, true);
+    test(S("abcdefghij"), "abcdefghijklmnopqrst", true, false);
+    test(S("abcdefghijklmnopqrst"), "", false, true);
+    test(S("abcdefghijklmnopqrst"), "abcde", false, true);
+    test(S("abcdefghijklmnopqrst"), "abcdefghij", false, true);
+    test(S("abcdefghijklmnopqrst"), "abcdefghijklmnopqrst", true, true);
+    }
+}

Added: libcxx/trunk/test/std/experimental/string.view/string.view.comparison/ople.string_view.string_view.pass.cpp
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/test/std/experimental/string.view/string.view.comparison/ople.string_view.string_view.pass.cpp?rev=224658&view=auto
==============================================================================
--- libcxx/trunk/test/std/experimental/string.view/string.view.comparison/ople.string_view.string_view.pass.cpp (added)
+++ libcxx/trunk/test/std/experimental/string.view/string.view.comparison/ople.string_view.string_view.pass.cpp Fri Dec 19 19:40:03 2014
@@ -0,0 +1,64 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <string>
+
+// template<class charT, class traits>
+//   constexpr bool operator<=(basic_string_view<charT,traits> lhs,
+//                  basic_string_view<charT,traits> rhs);
+
+#include <experimental/string_view>
+#include <cassert>
+
+#include "constexpr_char_traits.hpp"
+
+template <class S>
+void
+test(const S& lhs, const S& rhs, bool x, bool y)
+{
+    assert((lhs <= rhs) == x);
+    assert((rhs <= lhs) == y);
+}
+
+int main()
+{
+    {
+    typedef std::experimental::string_view S;
+    test(S(""), S(""), true, true);
+    test(S(""), S("abcde"), true, false);
+    test(S(""), S("abcdefghij"), true, false);
+    test(S(""), S("abcdefghijklmnopqrst"), true, false);
+    test(S("abcde"), S(""), false, true);
+    test(S("abcde"), S("abcde"), true, true);
+    test(S("abcde"), S("abcdefghij"), true, false);
+    test(S("abcde"), S("abcdefghijklmnopqrst"), true, false);
+    test(S("abcdefghij"), S(""), false, true);
+    test(S("abcdefghij"), S("abcde"), false, true);
+    test(S("abcdefghij"), S("abcdefghij"), true, true);
+    test(S("abcdefghij"), S("abcdefghijklmnopqrst"), true, false);
+    test(S("abcdefghijklmnopqrst"), S(""), false, true);
+    test(S("abcdefghijklmnopqrst"), S("abcde"), false, true);
+    test(S("abcdefghijklmnopqrst"), S("abcdefghij"), false, true);
+    test(S("abcdefghijklmnopqrst"), S("abcdefghijklmnopqrst"), true, true);
+    }
+
+#if _LIBCPP_STD_VER > 11
+    {
+    typedef std::experimental::basic_string_view<char, constexpr_char_traits<char>> SV;
+    constexpr SV  sv1;
+    constexpr SV  sv2 { "abcde", 5 };
+
+    static_assert (  sv1 <= sv1,  "" );
+    static_assert (  sv2 <= sv2,  "" );
+
+    static_assert (  sv1 <= sv2,  "" );
+    static_assert (!(sv2 <= sv1), "" );
+    }
+#endif
+}

Added: libcxx/trunk/test/std/experimental/string.view/string.view.comparison/oplt.string_view.pointer.pass.cpp
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/test/std/experimental/string.view/string.view.comparison/oplt.string_view.pointer.pass.cpp?rev=224658&view=auto
==============================================================================
--- libcxx/trunk/test/std/experimental/string.view/string.view.comparison/oplt.string_view.pointer.pass.cpp (added)
+++ libcxx/trunk/test/std/experimental/string.view/string.view.comparison/oplt.string_view.pointer.pass.cpp Fri Dec 19 19:40:03 2014
@@ -0,0 +1,71 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <string>
+
+// template<class charT, class traits, class Allocator>
+//   constexpr bool operator<(const charT* lhs, basic_string_wiew<charT,traits> rhs);
+// template<class charT, class traits, class Allocator>
+//   constexpr bool operator<(basic_string_wiew<charT,traits> lhs, const charT* rhs);
+
+#include <experimental/string_view>
+#include <cassert>
+
+#include "constexpr_char_traits.hpp"
+
+template <class S>
+void
+test(const typename S::value_type* lhs, const S& rhs, bool x, bool y)
+{
+    assert((lhs < rhs) == x);
+    assert((rhs < lhs) == y);
+}
+
+int main()
+{
+    {
+    typedef std::experimental::string_view S;
+    test("", S(""), false, false);
+    test("", S("abcde"), true, false);
+    test("", S("abcdefghij"), true, false);
+    test("", S("abcdefghijklmnopqrst"), true, false);
+    test("abcde", S(""), false, true);
+    test("abcde", S("abcde"), false, false);
+    test("abcde", S("abcdefghij"), true, false);
+    test("abcde", S("abcdefghijklmnopqrst"), true, false);
+    test("abcdefghij", S(""), false, true);
+    test("abcdefghij", S("abcde"), false, true);
+    test("abcdefghij", S("abcdefghij"), false, false);
+    test("abcdefghij", S("abcdefghijklmnopqrst"), true, false);
+    test("abcdefghijklmnopqrst", S(""), false, true);
+    test("abcdefghijklmnopqrst", S("abcde"), false, true);
+    test("abcdefghijklmnopqrst", S("abcdefghij"), false, true);
+    test("abcdefghijklmnopqrst", S("abcdefghijklmnopqrst"), false, false);
+    }
+
+#if _LIBCPP_STD_VER > 11
+    {
+    typedef std::experimental::basic_string_view<char, constexpr_char_traits<char>> SV;
+    constexpr SV  sv1;
+    constexpr SV  sv2 { "abcde", 5 };
+
+    static_assert (!(sv1     < ""), "" );
+    static_assert (!(""      < sv1), "" );
+    static_assert (  sv1     < "abcde", "" );
+    static_assert (!("abcde" < sv1), "" );
+    
+    static_assert (!(sv2      < ""), "" );
+    static_assert (  ""       < sv2, "" );
+    static_assert (!(sv2      < "abcde"), "" );
+    static_assert (!("abcde"  < sv2), "" );
+    static_assert (  sv2      < "abcde0", "" );
+    static_assert (!("abcde0" < sv2), "" );
+    }
+#endif
+}

Added: libcxx/trunk/test/std/experimental/string.view/string.view.comparison/oplt.string_view.string.pass.cpp
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/test/std/experimental/string.view/string.view.comparison/oplt.string_view.string.pass.cpp?rev=224658&view=auto
==============================================================================
--- libcxx/trunk/test/std/experimental/string.view/string.view.comparison/oplt.string_view.string.pass.cpp (added)
+++ libcxx/trunk/test/std/experimental/string.view/string.view.comparison/oplt.string_view.string.pass.cpp Fri Dec 19 19:40:03 2014
@@ -0,0 +1,50 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <string>
+
+// template<class charT, class traits, class Allocator>
+//   bool operator<(const basic_string<charT,traits,Allocator>& lhs,
+//                   basic_string_view<charT,traits> rhs);
+//   bool operator<(basic_string_view<charT,traits> lhs,
+//            const basic_string<charT,traits,Allocator>&  rhs);
+
+#include <experimental/string_view>
+#include <cassert>
+
+template <class S>
+void
+test(const S& lhs, const typename S::value_type* rhs, bool x, bool y)
+{
+    assert((lhs < rhs) == x);
+    assert((rhs < lhs) == y);
+}
+
+int main()
+{
+    {
+    typedef std::experimental::string_view S;
+    test(S(""), "", false, false);
+    test(S(""), "abcde", true, false);
+    test(S(""), "abcdefghij", true, false);
+    test(S(""), "abcdefghijklmnopqrst", true, false);
+    test(S("abcde"), "", false, true);
+    test(S("abcde"), "abcde", false, false);
+    test(S("abcde"), "abcdefghij", true, false);
+    test(S("abcde"), "abcdefghijklmnopqrst", true, false);
+    test(S("abcdefghij"), "", false, true);
+    test(S("abcdefghij"), "abcde", false, true);
+    test(S("abcdefghij"), "abcdefghij", false, false);
+    test(S("abcdefghij"), "abcdefghijklmnopqrst", true, false);
+    test(S("abcdefghijklmnopqrst"), "", false, true);
+    test(S("abcdefghijklmnopqrst"), "abcde", false, true);
+    test(S("abcdefghijklmnopqrst"), "abcdefghij", false, true);
+    test(S("abcdefghijklmnopqrst"), "abcdefghijklmnopqrst", false, false);
+    }
+}

Added: libcxx/trunk/test/std/experimental/string.view/string.view.comparison/oplt.string_view.string_view.pass.cpp
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/test/std/experimental/string.view/string.view.comparison/oplt.string_view.string_view.pass.cpp?rev=224658&view=auto
==============================================================================
--- libcxx/trunk/test/std/experimental/string.view/string.view.comparison/oplt.string_view.string_view.pass.cpp (added)
+++ libcxx/trunk/test/std/experimental/string.view/string.view.comparison/oplt.string_view.string_view.pass.cpp Fri Dec 19 19:40:03 2014
@@ -0,0 +1,64 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <string>
+
+// template<class charT, class traits>
+//   constexpr bool operator<(basic_string_view<charT,traits> lhs,
+//                  basic_string_view<charT,traits> rhs);
+
+#include <experimental/string_view>
+#include <cassert>
+
+#include "constexpr_char_traits.hpp"
+
+template <class S>
+void
+test(const S& lhs, const S& rhs, bool x, bool y)
+{
+    assert((lhs < rhs) == x);
+    assert((rhs < lhs) == y);
+}
+
+int main()
+{
+    {
+    typedef std::experimental::string_view S;
+    test(S(""), S(""), false, false);
+    test(S(""), S("abcde"), true, false);
+    test(S(""), S("abcdefghij"), true, false);
+    test(S(""), S("abcdefghijklmnopqrst"), true, false);
+    test(S("abcde"), S(""), false, true);
+    test(S("abcde"), S("abcde"), false, false);
+    test(S("abcde"), S("abcdefghij"), true, false);
+    test(S("abcde"), S("abcdefghijklmnopqrst"), true, false);
+    test(S("abcdefghij"), S(""), false, true);
+    test(S("abcdefghij"), S("abcde"), false, true);
+    test(S("abcdefghij"), S("abcdefghij"), false, false);
+    test(S("abcdefghij"), S("abcdefghijklmnopqrst"), true, false);
+    test(S("abcdefghijklmnopqrst"), S(""), false, true);
+    test(S("abcdefghijklmnopqrst"), S("abcde"), false, true);
+    test(S("abcdefghijklmnopqrst"), S("abcdefghij"), false, true);
+    test(S("abcdefghijklmnopqrst"), S("abcdefghijklmnopqrst"), false, false);
+    }
+
+#if _LIBCPP_STD_VER > 11
+    {
+    typedef std::experimental::basic_string_view<char, constexpr_char_traits<char>> SV;
+    constexpr SV  sv1;
+    constexpr SV  sv2 { "abcde", 5 };
+
+    static_assert (!(sv1 < sv1), "" );
+    static_assert (!(sv2 < sv2), "" );
+
+    static_assert (  sv1 < sv2,  "" );
+    static_assert (!(sv2 < sv1), "" );
+    }
+#endif
+}

Added: libcxx/trunk/test/std/experimental/string.view/string.view.comparison/opne.string_view.pointer.pass.cpp
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/test/std/experimental/string.view/string.view.comparison/opne.string_view.pointer.pass.cpp?rev=224658&view=auto
==============================================================================
--- libcxx/trunk/test/std/experimental/string.view/string.view.comparison/opne.string_view.pointer.pass.cpp (added)
+++ libcxx/trunk/test/std/experimental/string.view/string.view.comparison/opne.string_view.pointer.pass.cpp Fri Dec 19 19:40:03 2014
@@ -0,0 +1,69 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <string>
+
+// template<class charT, class traits>
+//   constexpr bool operator!=(basic_string_view<charT,traits> lhs, const charT* rhs);
+// template<class charT, class traits>
+//   constexpr bool operator!=(const charT* lhs, basic_string_view<charT,traits> rhs);
+
+#include <experimental/string_view>
+#include <cassert>
+
+#include "constexpr_char_traits.hpp"
+
+template <class S>
+void
+test(S lhs, const typename S::value_type* rhs, bool x)
+{
+    assert((lhs != rhs) == x);
+    assert((rhs != lhs) == x);
+}
+
+int main()
+{
+    {
+    typedef std::experimental::string_view S;
+    test(S(""), "", false);
+    test(S(""), "abcde", true);
+    test(S(""), "abcdefghij", true);
+    test(S(""), "abcdefghijklmnopqrst", true);
+    test(S("abcde"), "", true);
+    test(S("abcde"), "abcde", false);
+    test(S("abcde"), "abcdefghij", true);
+    test(S("abcde"), "abcdefghijklmnopqrst", true);
+    test(S("abcdefghij"), "", true);
+    test(S("abcdefghij"), "abcde", true);
+    test(S("abcdefghij"), "abcdefghij", false);
+    test(S("abcdefghij"), "abcdefghijklmnopqrst", true);
+    test(S("abcdefghijklmnopqrst"), "", true);
+    test(S("abcdefghijklmnopqrst"), "abcde", true);
+    test(S("abcdefghijklmnopqrst"), "abcdefghij", true);
+    test(S("abcdefghijklmnopqrst"), "abcdefghijklmnopqrst", false);
+    }
+
+#if _LIBCPP_STD_VER > 11
+    {
+    typedef std::experimental::basic_string_view<char, constexpr_char_traits<char>> SV;
+    constexpr SV  sv1;
+    constexpr SV  sv2 { "abcde", 5 };
+
+    static_assert (!(sv1     != ""), "" );
+    static_assert (!(""      != sv1), "" );
+    static_assert (  sv1     != "abcde", "" );
+    static_assert (  "abcde" != sv1, "" );
+    
+    static_assert (!(sv2      != "abcde"), "" );
+    static_assert (!("abcde"  != sv2), "" );
+    static_assert (  sv2      != "abcde0",   "" );
+    static_assert (  "abcde0" != sv2, "" );
+    }
+#endif
+}

Added: libcxx/trunk/test/std/experimental/string.view/string.view.comparison/opne.string_view.string.pass.cpp
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/test/std/experimental/string.view/string.view.comparison/opne.string_view.string.pass.cpp?rev=224658&view=auto
==============================================================================
--- libcxx/trunk/test/std/experimental/string.view/string.view.comparison/opne.string_view.string.pass.cpp (added)
+++ libcxx/trunk/test/std/experimental/string.view/string.view.comparison/opne.string_view.string.pass.cpp Fri Dec 19 19:40:03 2014
@@ -0,0 +1,49 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <string>
+
+// template<class charT, class traits, class Allocator>
+//   bool operator!=(const basic_string<charT, traits, Allocator> &lhs, basic_string_view<charT,traits> rhs);
+// template<class charT, class traits, class Allocator>
+//   bool operator!=(basic_string_view<charT,traits> lhs, const basic_string<charT, traits, Allocator> &rhs);
+
+#include <experimental/string_view>
+#include <cassert>
+
+template <class S>
+void
+test(const std::string &lhs, S rhs, bool x)
+{
+    assert((lhs != rhs) == x);
+    assert((rhs != lhs) == x);
+}
+
+int main()
+{
+    {
+    typedef std::experimental::string_view S;
+    test("", S(""), false);
+    test("", S("abcde"), true);
+    test("", S("abcdefghij"), true);
+    test("", S("abcdefghijklmnopqrst"), true);
+    test("abcde", S(""), true);
+    test("abcde", S("abcde"), false);
+    test("abcde", S("abcdefghij"), true);
+    test("abcde", S("abcdefghijklmnopqrst"), true);
+    test("abcdefghij", S(""), true);
+    test("abcdefghij", S("abcde"), true);
+    test("abcdefghij", S("abcdefghij"), false);
+    test("abcdefghij", S("abcdefghijklmnopqrst"), true);
+    test("abcdefghijklmnopqrst", S(""), true);
+    test("abcdefghijklmnopqrst", S("abcde"), true);
+    test("abcdefghijklmnopqrst", S("abcdefghij"), true);
+    test("abcdefghijklmnopqrst", S("abcdefghijklmnopqrst"), false);
+    }
+}

Added: libcxx/trunk/test/std/experimental/string.view/string.view.comparison/opne.string_view.string_view.pass.cpp
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/test/std/experimental/string.view/string.view.comparison/opne.string_view.string_view.pass.cpp?rev=224658&view=auto
==============================================================================
--- libcxx/trunk/test/std/experimental/string.view/string.view.comparison/opne.string_view.string_view.pass.cpp (added)
+++ libcxx/trunk/test/std/experimental/string.view/string.view.comparison/opne.string_view.string_view.pass.cpp Fri Dec 19 19:40:03 2014
@@ -0,0 +1,61 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <string_view>
+
+// template<class charT, class traits, class Allocator>
+//   constexpr bool operator!=(const basic_string_view<charT,traits> lhs,
+//                   const basic_string_view<charT,traits> rhs);
+
+#include <experimental/string_view>
+#include <cassert>
+
+#include "constexpr_char_traits.hpp"
+
+template <class S>
+void
+test(S lhs, S rhs, bool x)
+{
+    assert((lhs != rhs) == x);
+    assert((rhs != lhs) == x);
+}
+
+int main()
+{
+    {
+    typedef std::experimental::string_view S;
+    test(S(""), S(""), false);
+    test(S(""), S("abcde"), true);
+    test(S(""), S("abcdefghij"), true);
+    test(S(""), S("abcdefghijklmnopqrst"), true);
+    test(S("abcde"), S(""), true);
+    test(S("abcde"), S("abcde"), false);
+    test(S("abcde"), S("abcdefghij"), true);
+    test(S("abcde"), S("abcdefghijklmnopqrst"), true);
+    test(S("abcdefghij"), S(""), true);
+    test(S("abcdefghij"), S("abcde"), true);
+    test(S("abcdefghij"), S("abcdefghij"), false);
+    test(S("abcdefghij"), S("abcdefghijklmnopqrst"), true);
+    test(S("abcdefghijklmnopqrst"), S(""), true);
+    test(S("abcdefghijklmnopqrst"), S("abcde"), true);
+    test(S("abcdefghijklmnopqrst"), S("abcdefghij"), true);
+    test(S("abcdefghijklmnopqrst"), S("abcdefghijklmnopqrst"), false);
+    }
+
+#if _LIBCPP_STD_VER > 11
+    {
+    typedef std::experimental::basic_string_view<char, constexpr_char_traits<char>> SV;
+    constexpr SV  sv1;
+    constexpr SV  sv2;
+    constexpr SV  sv3 { "abcde", 5 };
+    static_assert (!( sv1 != sv2), "" );
+    static_assert (   sv1 != sv3,  "" );
+    }
+#endif
+}

Added: libcxx/trunk/test/std/experimental/string.view/string.view.cons/default.pass.cpp
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/test/std/experimental/string.view/string.view.cons/default.pass.cpp?rev=224658&view=auto
==============================================================================
--- libcxx/trunk/test/std/experimental/string.view/string.view.cons/default.pass.cpp (added)
+++ libcxx/trunk/test/std/experimental/string.view/string.view.cons/default.pass.cpp Fri Dec 19 19:40:03 2014
@@ -0,0 +1,46 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+
+// <string_view>
+
+// constexpr basic_string_view () noexcept;
+
+#include <experimental/string_view>
+#include <cassert>
+
+template<typename T>
+void test () {
+#if _LIBCPP_STD_VER > 11
+    {
+    constexpr T sv1;
+    static_assert ( sv1.size() == 0, "" );
+    static_assert ( sv1.empty(), "");
+    }
+#endif
+    
+    {
+    T sv1;
+    assert ( sv1.size() == 0 );
+    assert ( sv1.empty());
+    }
+}
+
+int main () {
+    typedef std::experimental::string_view    string_view;
+    typedef std::experimental::u16string_view u16string_view;
+    typedef std::experimental::u32string_view u32string_view;
+    typedef std::experimental::wstring_view   wstring_view;
+
+    test<string_view> ();
+    test<u16string_view> ();
+    test<u32string_view> ();
+    test<wstring_view> ();
+
+}

Added: libcxx/trunk/test/std/experimental/string.view/string.view.cons/from_literal.pass.cpp
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/test/std/experimental/string.view/string.view.cons/from_literal.pass.cpp?rev=224658&view=auto
==============================================================================
--- libcxx/trunk/test/std/experimental/string.view/string.view.cons/from_literal.pass.cpp (added)
+++ libcxx/trunk/test/std/experimental/string.view/string.view.cons/from_literal.pass.cpp Fri Dec 19 19:40:03 2014
@@ -0,0 +1,64 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+
+// <string_view>
+
+// constexpr basic_string_view(const _CharT* _s)
+//    : __data (_s), __size(_Traits::length(_s)) {}
+
+
+#include <experimental/string_view>
+#include <string>
+#include <cassert>
+
+#include "constexpr_char_traits.hpp"
+
+template<typename CharT>
+size_t StrLen ( const CharT *s ) {
+    size_t retVal = 0;
+    while ( *s != 0 ) { ++retVal; ++s; }
+    return retVal;
+    }
+
+template<typename CharT>
+void test ( const CharT *s ) {
+    std::experimental::basic_string_view<CharT> sv1 ( s );
+    assert ( sv1.size() == StrLen( s ));
+    assert ( sv1.data() == s );
+    }
+
+
+int main () {
+
+    test ( "QBCDE" );
+    test ( "A" );
+    test ( "" );
+    
+    test ( L"QBCDE" );
+    test ( L"A" );
+    test ( L"" );
+
+#if __cplusplus >= 201103L
+    test ( u"QBCDE" );
+    test ( u"A" );
+    test ( u"" );
+
+    test ( U"QBCDE" );
+    test ( U"A" );
+    test ( U"" );
+#endif
+
+#if _LIBCPP_STD_VER > 11
+    {
+    constexpr std::experimental::basic_string_view<char, constexpr_char_traits<char>> sv1 ( "ABCDE" );
+    static_assert ( sv1.size() == 5, "");
+    }
+#endif
+}

Added: libcxx/trunk/test/std/experimental/string.view/string.view.cons/from_ptr_len.pass.cpp
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/test/std/experimental/string.view/string.view.cons/from_ptr_len.pass.cpp?rev=224658&view=auto
==============================================================================
--- libcxx/trunk/test/std/experimental/string.view/string.view.cons/from_ptr_len.pass.cpp (added)
+++ libcxx/trunk/test/std/experimental/string.view/string.view.cons/from_ptr_len.pass.cpp Fri Dec 19 19:40:03 2014
@@ -0,0 +1,81 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+
+// <string_view>
+
+//  constexpr basic_string_view(const _CharT* _s, size_type _len)
+//      : __data (_s), __size(_len) {}
+
+
+#include <experimental/string_view>
+#include <string>
+#include <cassert>
+
+template<typename CharT>
+void test ( const CharT *s, size_t sz ) {
+    {
+    std::experimental::basic_string_view<CharT> sv1 ( s, sz );
+    assert ( sv1.size() == sz );
+    assert ( sv1.data() == s );
+    }
+}
+
+int main () {
+
+    test ( "QBCDE", 5 );
+    test ( "QBCDE", 2 );
+    test ( "", 0 );
+#if _LIBCPP_STD_VER > 11
+    {
+    constexpr const char *s = "QBCDE";
+    constexpr std::experimental::basic_string_view<char> sv1 ( s, 2 );
+    static_assert ( sv1.size() == 2, "" );
+    static_assert ( sv1.data() == s, "" );
+    }
+#endif
+
+    test ( L"QBCDE", 5 );
+    test ( L"QBCDE", 2 );
+    test ( L"", 0 );
+#if _LIBCPP_STD_VER > 11
+    {
+    constexpr const wchar_t *s = L"QBCDE";
+    constexpr std::experimental::basic_string_view<wchar_t> sv1 ( s, 2 );
+    static_assert ( sv1.size() == 2, "" );
+    static_assert ( sv1.data() == s, "" );
+    }
+#endif
+
+#if __cplusplus >= 201103L
+    test ( u"QBCDE", 5 );
+    test ( u"QBCDE", 2 );
+    test ( u"", 0 );
+#if _LIBCPP_STD_VER > 11
+    {
+    constexpr const char16_t *s = u"QBCDE";
+    constexpr std::experimental::basic_string_view<char16_t> sv1 ( s, 2 );
+    static_assert ( sv1.size() == 2, "" );
+    static_assert ( sv1.data() == s, "" );
+    }
+#endif
+
+    test ( U"QBCDE", 5 );
+    test ( U"QBCDE", 2 );
+    test ( U"", 0 );
+#if _LIBCPP_STD_VER > 11
+    {
+    constexpr const char32_t *s = U"QBCDE";
+    constexpr std::experimental::basic_string_view<char32_t> sv1 ( s, 2 );
+    static_assert ( sv1.size() == 2, "" );
+    static_assert ( sv1.data() == s, "" );
+    }
+#endif
+#endif
+}

Added: libcxx/trunk/test/std/experimental/string.view/string.view.cons/from_string.pass.cpp
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/test/std/experimental/string.view/string.view.cons/from_string.pass.cpp?rev=224658&view=auto
==============================================================================
--- libcxx/trunk/test/std/experimental/string.view/string.view.cons/from_string.pass.cpp (added)
+++ libcxx/trunk/test/std/experimental/string.view/string.view.cons/from_string.pass.cpp Fri Dec 19 19:40:03 2014
@@ -0,0 +1,54 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+
+// <string_view>
+
+// template<class Allocator>
+// basic_string_view(const basic_string<_CharT, _Traits, Allocator>& _str) noexcept
+
+
+#include <experimental/string_view>
+#include <string>
+#include <cassert>
+
+struct dummy_char_traits : public std::char_traits<char> {};
+
+template<typename CharT, typename Traits>
+void test ( const std::basic_string<CharT, Traits> &str ) {
+    std::experimental::basic_string_view<CharT, Traits> sv1 ( str );
+    assert ( sv1.size() == str.size());
+    assert ( sv1.data() == str.data());
+}
+
+int main () {
+
+    test ( std::string("QBCDE") );
+    test ( std::string("") );
+    test ( std::string() );
+    
+    test ( std::wstring(L"QBCDE") );
+    test ( std::wstring(L"") );
+    test ( std::wstring() );
+
+#if __cplusplus >= 201103L
+    test ( std::u16string{u"QBCDE"} );
+    test ( std::u16string{u""} );
+    test ( std::u16string{} );
+
+    test ( std::u32string{U"QBCDE"} );
+    test ( std::u32string{U""} );
+    test ( std::u32string{} );
+#endif
+    
+    test ( std::basic_string<char, dummy_char_traits>("QBCDE") );
+    test ( std::basic_string<char, dummy_char_traits>("") );
+    test ( std::basic_string<char, dummy_char_traits>() );
+
+}

Added: libcxx/trunk/test/std/experimental/string.view/string.view.cons/from_string1.fail.cpp
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/test/std/experimental/string.view/string.view.cons/from_string1.fail.cpp?rev=224658&view=auto
==============================================================================
--- libcxx/trunk/test/std/experimental/string.view/string.view.cons/from_string1.fail.cpp (added)
+++ libcxx/trunk/test/std/experimental/string.view/string.view.cons/from_string1.fail.cpp Fri Dec 19 19:40:03 2014
@@ -0,0 +1,32 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+
+// <string_view>
+
+// template<class Allocator>
+// basic_string_view(const basic_string<_CharT, _Traits, Allocator>& _str) noexcept
+
+#include <experimental/string_view>
+#include <string>
+#include <cassert>
+
+struct dummy_char_traits : public std::char_traits<char> {};
+
+int main () {
+    using string_view = std::experimental::basic_string_view<char>;
+    using string      = std::              basic_string     <char, dummy_char_traits>;
+    
+    {
+    string s{"QBCDE"};
+    string_view sv1 ( s );
+    assert ( sv1.size() == s.size());
+    assert ( sv1.data() == s.data());
+    }
+}
\ No newline at end of file

Added: libcxx/trunk/test/std/experimental/string.view/string.view.cons/from_string2.fail.cpp
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/test/std/experimental/string.view/string.view.cons/from_string2.fail.cpp?rev=224658&view=auto
==============================================================================
--- libcxx/trunk/test/std/experimental/string.view/string.view.cons/from_string2.fail.cpp (added)
+++ libcxx/trunk/test/std/experimental/string.view/string.view.cons/from_string2.fail.cpp Fri Dec 19 19:40:03 2014
@@ -0,0 +1,32 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+
+// <string_view>
+
+// template<class Allocator>
+// basic_string_view(const basic_string<_CharT, _Traits, Allocator>& _str) noexcept
+
+#include <experimental/string_view>
+#include <string>
+#include <cassert>
+
+struct dummy_char_traits : public std::char_traits<char> {};
+
+int main () {
+    using string_view = std::experimental::basic_string_view<char, dummy_char_traits>;
+    using string      = std::              basic_string     <char>;
+    
+    {
+    string s{"QBCDE"};
+    string_view sv1 ( s );
+    assert ( sv1.size() == s.size());
+    assert ( sv1.data() == s.data());
+    }
+}

Added: libcxx/trunk/test/std/experimental/string.view/string.view.find/find_char_size.pass.cpp
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/test/std/experimental/string.view/string.view.find/find_char_size.pass.cpp?rev=224658&view=auto
==============================================================================
--- libcxx/trunk/test/std/experimental/string.view/string.view.find/find_char_size.pass.cpp (added)
+++ libcxx/trunk/test/std/experimental/string.view/string.view.find/find_char_size.pass.cpp Fri Dec 19 19:40:03 2014
@@ -0,0 +1,84 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <string_view>
+
+// constexpr size_type find(charT c, size_type pos = 0) const;
+
+#include <experimental/string_view>
+#include <cassert>
+
+#include "constexpr_char_traits.hpp"
+
+template <class S>
+void
+test(const S& s, typename S::value_type c, typename S::size_type pos,
+     typename S::size_type x)
+{
+    assert(s.find(c, pos) == x);
+    if (x != S::npos)
+        assert(pos <= x && x + 1 <= s.size());
+}
+
+template <class S>
+void
+test(const S& s, typename S::value_type c, typename S::size_type x)
+{
+    assert(s.find(c) == x);
+    if (x != S::npos)
+        assert(0 <= x && x + 1 <= s.size());
+}
+
+int main()
+{
+    {
+    typedef std::experimental::string_view S;
+    test(S(""), 'c', 0, S::npos);
+    test(S(""), 'c', 1, S::npos);
+    test(S("abcde"), 'c', 0, 2);
+    test(S("abcde"), 'c', 1, 2);
+    test(S("abcde"), 'c', 2, 2);
+    test(S("abcde"), 'c', 4, S::npos);
+    test(S("abcde"), 'c', 5, S::npos);
+    test(S("abcde"), 'c', 6, S::npos);
+    test(S("abcdeabcde"), 'c', 0, 2);
+    test(S("abcdeabcde"), 'c', 1, 2);
+    test(S("abcdeabcde"), 'c', 5, 7);
+    test(S("abcdeabcde"), 'c', 9, S::npos);
+    test(S("abcdeabcde"), 'c', 10, S::npos);
+    test(S("abcdeabcde"), 'c', 11, S::npos);
+    test(S("abcdeabcdeabcdeabcde"), 'c', 0, 2);
+    test(S("abcdeabcdeabcdeabcde"), 'c', 1, 2);
+    test(S("abcdeabcdeabcdeabcde"), 'c', 10, 12);
+    test(S("abcdeabcdeabcdeabcde"), 'c', 19, S::npos);
+    test(S("abcdeabcdeabcdeabcde"), 'c', 20, S::npos);
+    test(S("abcdeabcdeabcdeabcde"), 'c', 21, S::npos);
+
+    test(S(""), 'c', S::npos);
+    test(S("abcde"), 'c', 2);
+    test(S("abcdeabcde"), 'c', 2);
+    test(S("abcdeabcdeabcdeabcde"), 'c', 2);
+    }
+
+#if _LIBCPP_STD_VER > 11
+    {
+    typedef std::experimental::basic_string_view<char, constexpr_char_traits<char>> SV;
+    constexpr SV  sv1;
+    constexpr SV  sv2 { "abcde", 5 };
+
+    static_assert (sv1.find( 'c', 0 ) == SV::npos, "" );
+    static_assert (sv1.find( 'c', 1 ) == SV::npos, "" );
+    static_assert (sv2.find( 'c', 0 ) == 2, "" );
+    static_assert (sv2.find( 'c', 1 ) == 2, "" );
+    static_assert (sv2.find( 'c', 2 ) == 2, "" );
+    static_assert (sv2.find( 'c', 3 ) == SV::npos, "" );
+    static_assert (sv2.find( 'c', 4 ) == SV::npos, "" );
+    }
+#endif
+}

Added: libcxx/trunk/test/std/experimental/string.view/string.view.find/find_first_not_of_char_size.pass.cpp
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/test/std/experimental/string.view/string.view.find/find_first_not_of_char_size.pass.cpp?rev=224658&view=auto
==============================================================================
--- libcxx/trunk/test/std/experimental/string.view/string.view.find/find_first_not_of_char_size.pass.cpp (added)
+++ libcxx/trunk/test/std/experimental/string.view/string.view.find/find_first_not_of_char_size.pass.cpp Fri Dec 19 19:40:03 2014
@@ -0,0 +1,84 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <string_view>
+
+// constexpr size_type find_first_not_of(charT c, size_type pos = 0) const;
+
+#include <experimental/string_view>
+#include <cassert>
+
+#include "constexpr_char_traits.hpp"
+
+template <class S>
+void
+test(const S& s, typename S::value_type c, typename S::size_type pos,
+     typename S::size_type x)
+{
+    assert(s.find_first_not_of(c, pos) == x);
+    if (x != S::npos)
+        assert(pos <= x && x < s.size());
+}
+
+template <class S>
+void
+test(const S& s, typename S::value_type c, typename S::size_type x)
+{
+    assert(s.find_first_not_of(c) == x);
+    if (x != S::npos)
+        assert(x < s.size());
+}
+
+int main()
+{
+    {
+    typedef std::experimental::string_view S;
+    test(S(""), 'q', 0, S::npos);
+    test(S(""), 'q', 1, S::npos);
+    test(S("kitcj"), 'q', 0, 0);
+    test(S("qkamf"), 'q', 1, 1);
+    test(S("nhmko"), 'q', 2, 2);
+    test(S("tpsaf"), 'q', 4, 4);
+    test(S("lahfb"), 'q', 5, S::npos);
+    test(S("irkhs"), 'q', 6, S::npos);
+    test(S("gmfhdaipsr"), 'q', 0, 0);
+    test(S("kantesmpgj"), 'q', 1, 1);
+    test(S("odaftiegpm"), 'q', 5, 5);
+    test(S("oknlrstdpi"), 'q', 9, 9);
+    test(S("eolhfgpjqk"), 'q', 10, S::npos);
+    test(S("pcdrofikas"), 'q', 11, S::npos);
+    test(S("nbatdlmekrgcfqsophij"), 'q', 0, 0);
+    test(S("bnrpehidofmqtcksjgla"), 'q', 1, 1);
+    test(S("jdmciepkaqgotsrfnhlb"), 'q', 10, 10);
+    test(S("jtdaefblsokrmhpgcnqi"), 'q', 19, 19);
+    test(S("hkbgspofltajcnedqmri"), 'q', 20, S::npos);
+    test(S("oselktgbcapndfjihrmq"), 'q', 21, S::npos);
+
+    test(S(""), 'q', S::npos);
+    test(S("q"), 'q', S::npos);
+    test(S("qqq"), 'q', S::npos);
+    test(S("csope"), 'q', 0);
+    test(S("gfsmthlkon"), 'q', 0);
+    test(S("laenfsbridchgotmkqpj"), 'q', 0);
+    }
+
+#if _LIBCPP_STD_VER > 11
+    {
+    typedef std::experimental::basic_string_view<char, constexpr_char_traits<char>> SV;
+    constexpr SV  sv1;
+    constexpr SV  sv2 { "abcde", 5 };
+
+    static_assert (sv1.find_first_not_of( 'q', 0 ) == SV::npos, "" );
+    static_assert (sv1.find_first_not_of( 'q', 1 ) == SV::npos, "" );
+    static_assert (sv2.find_first_not_of( 'q', 0 ) == 0, "" );
+    static_assert (sv2.find_first_not_of( 'q', 1 ) == 1, "" );
+    static_assert (sv2.find_first_not_of( 'q', 5 ) == SV::npos, "" );
+    }
+#endif
+}

Added: libcxx/trunk/test/std/experimental/string.view/string.view.find/find_first_not_of_pointer_size.pass.cpp
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/test/std/experimental/string.view/string.view.find/find_first_not_of_pointer_size.pass.cpp?rev=224658&view=auto
==============================================================================
--- libcxx/trunk/test/std/experimental/string.view/string.view.find/find_first_not_of_pointer_size.pass.cpp (added)
+++ libcxx/trunk/test/std/experimental/string.view/string.view.find/find_first_not_of_pointer_size.pass.cpp Fri Dec 19 19:40:03 2014
@@ -0,0 +1,165 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <string_view>
+
+// constexpr size_type find_first_not_of(const charT* s, size_type pos = 0) const;
+
+#include <experimental/string_view>
+#include <cassert>
+
+#include "constexpr_char_traits.hpp"
+
+template <class S>
+void
+test(const S& s, const typename S::value_type* str, typename S::size_type pos,
+     typename S::size_type x)
+{
+    assert(s.find_first_not_of(str, pos) == x);
+    if (x != S::npos)
+        assert(pos <= x && x < s.size());
+}
+
+template <class S>
+void
+test(const S& s, const typename S::value_type* str, typename S::size_type x)
+{
+    assert(s.find_first_not_of(str) == x);
+    if (x != S::npos)
+        assert(x < s.size());
+}
+
+template <class S>
+void test0()
+{
+    test(S(""), "", 0, S::npos);
+    test(S(""), "laenf", 0, S::npos);
+    test(S(""), "pqlnkmbdjo", 0, S::npos);
+    test(S(""), "qkamfogpnljdcshbreti", 0, S::npos);
+    test(S(""), "", 1, S::npos);
+    test(S(""), "bjaht", 1, S::npos);
+    test(S(""), "hjlcmgpket", 1, S::npos);
+    test(S(""), "htaobedqikfplcgjsmrn", 1, S::npos);
+    test(S("fodgq"), "", 0, 0);
+    test(S("qanej"), "dfkap", 0, 0);
+    test(S("clbao"), "ihqrfebgad", 0, 0);
+    test(S("mekdn"), "ngtjfcalbseiqrphmkdo", 0, S::npos);
+    test(S("srdfq"), "", 1, 1);
+    test(S("oemth"), "ikcrq", 1, 1);
+    test(S("cdaih"), "dmajblfhsg", 1, 3);
+    test(S("qohtk"), "oqftjhdmkgsblacenirp", 1, S::npos);
+    test(S("cshmd"), "", 2, 2);
+    test(S("lhcdo"), "oebqi", 2, 2);
+    test(S("qnsoh"), "kojhpmbsfe", 2, S::npos);
+    test(S("pkrof"), "acbsjqogpltdkhinfrem", 2, S::npos);
+    test(S("fmtsp"), "", 4, 4);
+    test(S("khbpm"), "aobjd", 4, 4);
+    test(S("pbsji"), "pcbahntsje", 4, 4);
+    test(S("mprdj"), "fhepcrntkoagbmldqijs", 4, S::npos);
+    test(S("eqmpa"), "", 5, S::npos);
+    test(S("omigs"), "kocgb", 5, S::npos);
+    test(S("onmje"), "fbslrjiqkm", 5, S::npos);
+    test(S("oqmrj"), "jeidpcmalhfnqbgtrsko", 5, S::npos);
+    test(S("schfa"), "", 6, S::npos);
+    test(S("igdsc"), "qngpd", 6, S::npos);
+    test(S("brqgo"), "rodhqklgmb", 6, S::npos);
+    test(S("tnrph"), "thdjgafrlbkoiqcspmne", 6, S::npos);
+    test(S("hcjitbfapl"), "", 0, 0);
+    test(S("daiprenocl"), "ashjd", 0, 2);
+    test(S("litpcfdghe"), "mgojkldsqh", 0, 1);
+    test(S("aidjksrolc"), "imqnaghkfrdtlopbjesc", 0, S::npos);
+    test(S("qpghtfbaji"), "", 1, 1);
+    test(S("gfshlcmdjr"), "nadkh", 1, 1);
+    test(S("nkodajteqp"), "ofdrqmkebl", 1, 4);
+    test(S("gbmetiprqd"), "bdfjqgatlksriohemnpc", 1, S::npos);
+    test(S("crnklpmegd"), "", 5, 5);
+    test(S("jsbtafedoc"), "prqgn", 5, 5);
+    test(S("qnmodrtkeb"), "pejafmnokr", 5, 6);
+    test(S("cpebqsfmnj"), "odnqkgijrhabfmcestlp", 5, S::npos);
+    test(S("lmofqdhpki"), "", 9, 9);
+    test(S("hnefkqimca"), "rtjpa", 9, S::npos);
+    test(S("drtasbgmfp"), "ktsrmnqagd", 9, 9);
+    test(S("lsaijeqhtr"), "rtdhgcisbnmoaqkfpjle", 9, S::npos);
+    test(S("elgofjmbrq"), "", 10, S::npos);
+    test(S("mjqdgalkpc"), "dplqa", 10, S::npos);
+    test(S("kthqnfcerm"), "dkacjoptns", 10, S::npos);
+    test(S("dfsjhanorc"), "hqfimtrgnbekpdcsjalo", 10, S::npos);
+    test(S("eqsgalomhb"), "", 11, S::npos);
+    test(S("akiteljmoh"), "lofbc", 11, S::npos);
+    test(S("hlbdfreqjo"), "astoegbfpn", 11, S::npos);
+    test(S("taqobhlerg"), "pdgreqomsncafklhtibj", 11, S::npos);
+    test(S("snafbdlghrjkpqtoceim"), "", 0, 0);
+    test(S("aemtbrgcklhndjisfpoq"), "lbtqd", 0, 0);
+    test(S("pnracgfkjdiholtbqsem"), "tboimldpjh", 0, 1);
+    test(S("dicfltehbsgrmojnpkaq"), "slcerthdaiqjfnobgkpm", 0, S::npos);
+    test(S("jlnkraeodhcspfgbqitm"), "", 1, 1);
+    test(S("lhosrngtmfjikbqpcade"), "aqibs", 1, 1);
+    test(S("rbtaqjhgkneisldpmfoc"), "gtfblmqinc", 1, 3);
+    test(S("gpifsqlrdkbonjtmheca"), "mkqpbtdalgniorhfescj", 1, S::npos);
+    test(S("hdpkobnsalmcfijregtq"), "", 10, 10);
+    test(S("jtlshdgqaiprkbcoenfm"), "pblas", 10, 11);
+    test(S("fkdrbqltsgmcoiphneaj"), "arosdhcfme", 10, 13);
+    test(S("crsplifgtqedjohnabmk"), "blkhjeogicatqfnpdmsr", 10, S::npos);
+    test(S("niptglfbosehkamrdqcj"), "", 19, 19);
+    test(S("copqdhstbingamjfkler"), "djkqc", 19, 19);
+    test(S("mrtaefilpdsgocnhqbjk"), "lgokshjtpb", 19, S::npos);
+    test(S("kojatdhlcmigpbfrqnes"), "bqjhtkfepimcnsgrlado", 19, S::npos);
+    test(S("eaintpchlqsbdgrkjofm"), "", 20, S::npos);
+    test(S("gjnhidfsepkrtaqbmclo"), "nocfa", 20, S::npos);
+    test(S("spocfaktqdbiejlhngmr"), "bgtajmiedc", 20, S::npos);
+    test(S("rphmlekgfscndtaobiqj"), "lsckfnqgdahejiopbtmr", 20, S::npos);
+    test(S("liatsqdoegkmfcnbhrpj"), "", 21, S::npos);
+    test(S("binjagtfldkrspcomqeh"), "gfsrt", 21, S::npos);
+    test(S("latkmisecnorjbfhqpdg"), "pfsocbhjtm", 21, S::npos);
+    test(S("lecfratdjkhnsmqpoigb"), "tpflmdnoicjgkberhqsa", 21, S::npos);
+}
+
+template <class S>
+void test1()
+{
+    test(S(""), "", S::npos);
+    test(S(""), "laenf", S::npos);
+    test(S(""), "pqlnkmbdjo", S::npos);
+    test(S(""), "qkamfogpnljdcshbreti", S::npos);
+    test(S("nhmko"), "", 0);
+    test(S("lahfb"), "irkhs", 0);
+    test(S("gmfhd"), "kantesmpgj", 2);
+    test(S("odaft"), "oknlrstdpiqmjbaghcfe", S::npos);
+    test(S("eolhfgpjqk"), "", 0);
+    test(S("nbatdlmekr"), "bnrpe", 2);
+    test(S("jdmciepkaq"), "jtdaefblso", 2);
+    test(S("hkbgspoflt"), "oselktgbcapndfjihrmq", S::npos);
+    test(S("gprdcokbnjhlsfmtieqa"), "", 0);
+    test(S("qjghlnftcaismkropdeb"), "bjaht", 0);
+    test(S("pnalfrdtkqcmojiesbhg"), "hjlcmgpket", 1);
+    test(S("pniotcfrhqsmgdkjbael"), "htaobedqikfplcgjsmrn", S::npos);
+}
+
+int main()
+{
+    {
+    typedef std::experimental::string_view S;
+    test0<S>();
+    test1<S>();
+    }
+
+#if _LIBCPP_STD_VER > 11
+    {
+    typedef std::experimental::basic_string_view<char, constexpr_char_traits<char>> SV;
+    constexpr SV  sv1;
+    constexpr SV  sv2 { "abcde", 5 };
+
+    static_assert (sv1.find_first_not_of( "",      0) == SV::npos, "" );
+    static_assert (sv1.find_first_not_of( "irkhs", 0) == SV::npos, "" );
+    static_assert (sv2.find_first_not_of( "",      0) == 0, "" );
+    static_assert (sv2.find_first_not_of( "gfsrt", 0) == 0, "" );
+    static_assert (sv2.find_first_not_of( "lecar", 0) == 1, "" );
+    }
+#endif
+}

Added: libcxx/trunk/test/std/experimental/string.view/string.view.find/find_first_not_of_pointer_size_size.pass.cpp
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/test/std/experimental/string.view/string.view.find/find_first_not_of_pointer_size_size.pass.cpp?rev=224658&view=auto
==============================================================================
--- libcxx/trunk/test/std/experimental/string.view/string.view.find/find_first_not_of_pointer_size_size.pass.cpp (added)
+++ libcxx/trunk/test/std/experimental/string.view/string.view.find/find_first_not_of_pointer_size_size.pass.cpp Fri Dec 19 19:40:03 2014
@@ -0,0 +1,392 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <string_view>
+
+// constexpr size_type find_first_not_of(const charT* s, size_type pos, size_type n) const;
+
+#include <experimental/string_view>
+#include <cassert>
+
+#include "constexpr_char_traits.hpp"
+
+template <class S>
+void
+test(const S& s, const typename S::value_type* str, typename S::size_type pos,
+     typename S::size_type n, typename S::size_type x)
+{
+    assert(s.find_first_not_of(str, pos, n) == x);
+    if (x != S::npos)
+        assert(pos <= x && x < s.size());
+}
+
+template <class S>
+void test0()
+{
+    test(S(""), "", 0, 0, S::npos);
+    test(S(""), "irkhs", 0, 0, S::npos);
+    test(S(""), "kante", 0, 1, S::npos);
+    test(S(""), "oknlr", 0, 2, S::npos);
+    test(S(""), "pcdro", 0, 4, S::npos);
+    test(S(""), "bnrpe", 0, 5, S::npos);
+    test(S(""), "jtdaefblso", 0, 0, S::npos);
+    test(S(""), "oselktgbca", 0, 1, S::npos);
+    test(S(""), "eqgaplhckj", 0, 5, S::npos);
+    test(S(""), "bjahtcmnlp", 0, 9, S::npos);
+    test(S(""), "hjlcmgpket", 0, 10, S::npos);
+    test(S(""), "htaobedqikfplcgjsmrn", 0, 0, S::npos);
+    test(S(""), "hpqiarojkcdlsgnmfetb", 0, 1, S::npos);
+    test(S(""), "dfkaprhjloqetcsimnbg", 0, 10, S::npos);
+    test(S(""), "ihqrfebgadntlpmjksoc", 0, 19, S::npos);
+    test(S(""), "ngtjfcalbseiqrphmkdo", 0, 20, S::npos);
+    test(S(""), "", 1, 0, S::npos);
+    test(S(""), "lbtqd", 1, 0, S::npos);
+    test(S(""), "tboim", 1, 1, S::npos);
+    test(S(""), "slcer", 1, 2, S::npos);
+    test(S(""), "cbjfs", 1, 4, S::npos);
+    test(S(""), "aqibs", 1, 5, S::npos);
+    test(S(""), "gtfblmqinc", 1, 0, S::npos);
+    test(S(""), "mkqpbtdalg", 1, 1, S::npos);
+    test(S(""), "kphatlimcd", 1, 5, S::npos);
+    test(S(""), "pblasqogic", 1, 9, S::npos);
+    test(S(""), "arosdhcfme", 1, 10, S::npos);
+    test(S(""), "blkhjeogicatqfnpdmsr", 1, 0, S::npos);
+    test(S(""), "bmhineprjcoadgstflqk", 1, 1, S::npos);
+    test(S(""), "djkqcmetslnghpbarfoi", 1, 10, S::npos);
+    test(S(""), "lgokshjtpbemarcdqnfi", 1, 19, S::npos);
+    test(S(""), "bqjhtkfepimcnsgrlado", 1, 20, S::npos);
+    test(S("eaint"), "", 0, 0, 0);
+    test(S("binja"), "gfsrt", 0, 0, 0);
+    test(S("latkm"), "pfsoc", 0, 1, 0);
+    test(S("lecfr"), "tpflm", 0, 2, 0);
+    test(S("eqkst"), "sgkec", 0, 4, 1);
+    test(S("cdafr"), "romds", 0, 5, 0);
+    test(S("prbhe"), "qhjistlgmr", 0, 0, 0);
+    test(S("lbisk"), "pedfirsglo", 0, 1, 0);
+    test(S("hrlpd"), "aqcoslgrmk", 0, 5, 0);
+    test(S("ehmja"), "dabckmepqj", 0, 9, 1);
+    test(S("mhqgd"), "pqscrjthli", 0, 10, 0);
+    test(S("tgklq"), "kfphdcsjqmobliagtren", 0, 0, 0);
+    test(S("bocjs"), "rokpefncljibsdhqtagm", 0, 1, 0);
+    test(S("grbsd"), "afionmkphlebtcjqsgrd", 0, 10, 0);
+    test(S("ofjqr"), "aenmqplidhkofrjbctsg", 0, 19, S::npos);
+    test(S("btlfi"), "osjmbtcadhiklegrpqnf", 0, 20, S::npos);
+    test(S("clrgb"), "", 1, 0, 1);
+    test(S("tjmek"), "osmia", 1, 0, 1);
+    test(S("bgstp"), "ckonl", 1, 1, 1);
+    test(S("hstrk"), "ilcaj", 1, 2, 1);
+    test(S("kmspj"), "lasiq", 1, 4, 1);
+    test(S("tjboh"), "kfqmr", 1, 5, 1);
+    test(S("ilbcj"), "klnitfaobg", 1, 0, 1);
+    test(S("jkngf"), "gjhmdlqikp", 1, 1, 1);
+    test(S("gfcql"), "skbgtahqej", 1, 5, 1);
+    test(S("dqtlg"), "bjsdgtlpkf", 1, 9, 1);
+    test(S("bthpg"), "bjgfmnlkio", 1, 10, 1);
+    test(S("dgsnq"), "lbhepotfsjdqigcnamkr", 1, 0, 1);
+    test(S("rmfhp"), "tebangckmpsrqdlfojhi", 1, 1, 1);
+    test(S("jfdam"), "joflqbdkhtegimscpanr", 1, 10, 3);
+    test(S("edapb"), "adpmcohetfbsrjinlqkg", 1, 19, S::npos);
+    test(S("brfsm"), "iacldqjpfnogbsrhmetk", 1, 20, S::npos);
+    test(S("ndrhl"), "", 2, 0, 2);
+    test(S("mrecp"), "otkgb", 2, 0, 2);
+    test(S("qlasf"), "cqsjl", 2, 1, 2);
+    test(S("smaqd"), "dpifl", 2, 2, 2);
+    test(S("hjeni"), "oapht", 2, 4, 2);
+    test(S("ocmfj"), "cifts", 2, 5, 2);
+    test(S("hmftq"), "nmsckbgalo", 2, 0, 2);
+    test(S("fklad"), "tpksqhamle", 2, 1, 2);
+    test(S("dirnm"), "tpdrchmkji", 2, 5, 3);
+    test(S("hrgdc"), "ijagfkblst", 2, 9, 3);
+    test(S("ifakg"), "kpocsignjb", 2, 10, 2);
+    test(S("ebrgd"), "pecqtkjsnbdrialgmohf", 2, 0, 2);
+    test(S("rcjml"), "aiortphfcmkjebgsndql", 2, 1, 2);
+    test(S("peqmt"), "sdbkeamglhipojqftrcn", 2, 10, 2);
+    test(S("frehn"), "ljqncehgmfktroapidbs", 2, 19, S::npos);
+    test(S("tqolf"), "rtcfodilamkbenjghqps", 2, 20, S::npos);
+    test(S("cjgao"), "", 4, 0, 4);
+    test(S("kjplq"), "mabns", 4, 0, 4);
+    test(S("herni"), "bdnrp", 4, 1, 4);
+    test(S("tadrb"), "scidp", 4, 2, 4);
+    test(S("pkfeo"), "agbjl", 4, 4, 4);
+    test(S("hoser"), "jfmpr", 4, 5, S::npos);
+    test(S("kgrsp"), "rbpefghsmj", 4, 0, 4);
+    test(S("pgejb"), "apsfntdoqc", 4, 1, 4);
+    test(S("thlnq"), "ndkjeisgcl", 4, 5, 4);
+    test(S("nbmit"), "rnfpqatdeo", 4, 9, S::npos);
+    test(S("jgmib"), "bntjlqrfik", 4, 10, S::npos);
+    test(S("ncrfj"), "kcrtmpolnaqejghsfdbi", 4, 0, 4);
+    test(S("ncsik"), "lobheanpkmqidsrtcfgj", 4, 1, 4);
+    test(S("sgbfh"), "athdkljcnreqbgpmisof", 4, 10, S::npos);
+    test(S("dktbn"), "qkdmjialrscpbhefgont", 4, 19, S::npos);
+    test(S("fthqm"), "dmasojntqleribkgfchp", 4, 20, S::npos);
+    test(S("klopi"), "", 5, 0, S::npos);
+    test(S("dajhn"), "psthd", 5, 0, S::npos);
+    test(S("jbgno"), "rpmjd", 5, 1, S::npos);
+    test(S("hkjae"), "dfsmk", 5, 2, S::npos);
+}
+
+template <class S>
+void test1()
+{
+    test(S("gbhqo"), "skqne", 5, 4, S::npos);
+    test(S("ktdor"), "kipnf", 5, 5, S::npos);
+    test(S("ldprn"), "hmrnqdgifl", 5, 0, S::npos);
+    test(S("egmjk"), "fsmjcdairn", 5, 1, S::npos);
+    test(S("armql"), "pcdgltbrfj", 5, 5, S::npos);
+    test(S("cdhjo"), "aekfctpirg", 5, 9, S::npos);
+    test(S("jcons"), "ledihrsgpf", 5, 10, S::npos);
+    test(S("cbrkp"), "mqcklahsbtirgopefndj", 5, 0, S::npos);
+    test(S("fhgna"), "kmlthaoqgecrnpdbjfis", 5, 1, S::npos);
+    test(S("ejfcd"), "sfhbamcdptojlkrenqgi", 5, 10, S::npos);
+    test(S("kqjhe"), "pbniofmcedrkhlstgaqj", 5, 19, S::npos);
+    test(S("pbdjl"), "mongjratcskbhqiepfdl", 5, 20, S::npos);
+    test(S("gajqn"), "", 6, 0, S::npos);
+    test(S("stedk"), "hrnat", 6, 0, S::npos);
+    test(S("tjkaf"), "gsqdt", 6, 1, S::npos);
+    test(S("dthpe"), "bspkd", 6, 2, S::npos);
+    test(S("klhde"), "ohcmb", 6, 4, S::npos);
+    test(S("bhlki"), "heatr", 6, 5, S::npos);
+    test(S("lqmoh"), "pmblckedfn", 6, 0, S::npos);
+    test(S("mtqin"), "aceqmsrbik", 6, 1, S::npos);
+    test(S("dpqbr"), "lmbtdehjrn", 6, 5, S::npos);
+    test(S("kdhmo"), "teqmcrlgib", 6, 9, S::npos);
+    test(S("jblqp"), "njolbmspac", 6, 10, S::npos);
+    test(S("qmjgl"), "pofnhidklamecrbqjgst", 6, 0, S::npos);
+    test(S("rothp"), "jbhckmtgrqnosafedpli", 6, 1, S::npos);
+    test(S("ghknq"), "dobntpmqklicsahgjerf", 6, 10, S::npos);
+    test(S("eopfi"), "tpdshainjkbfoemlrgcq", 6, 19, S::npos);
+    test(S("dsnmg"), "oldpfgeakrnitscbjmqh", 6, 20, S::npos);
+    test(S("jnkrfhotgl"), "", 0, 0, 0);
+    test(S("dltjfngbko"), "rqegt", 0, 0, 0);
+    test(S("bmjlpkiqde"), "dashm", 0, 1, 0);
+    test(S("skrflobnqm"), "jqirk", 0, 2, 0);
+    test(S("jkpldtshrm"), "rckeg", 0, 4, 0);
+    test(S("ghasdbnjqo"), "jscie", 0, 5, 0);
+    test(S("igrkhpbqjt"), "efsphndliq", 0, 0, 0);
+    test(S("ikthdgcamf"), "gdicosleja", 0, 1, 0);
+    test(S("pcofgeniam"), "qcpjibosfl", 0, 5, 2);
+    test(S("rlfjgesqhc"), "lrhmefnjcq", 0, 9, 4);
+    test(S("itphbqsker"), "dtablcrseo", 0, 10, 0);
+    test(S("skjafcirqm"), "apckjsftedbhgomrnilq", 0, 0, 0);
+    test(S("tcqomarsfd"), "pcbrgflehjtiadnsokqm", 0, 1, 0);
+    test(S("rocfeldqpk"), "nsiadegjklhobrmtqcpf", 0, 10, 0);
+    test(S("cfpegndlkt"), "cpmajdqnolikhgsbretf", 0, 19, 1);
+    test(S("fqbtnkeasj"), "jcflkntmgiqrphdosaeb", 0, 20, S::npos);
+    test(S("shbcqnmoar"), "", 1, 0, 1);
+    test(S("bdoshlmfin"), "ontrs", 1, 0, 1);
+    test(S("khfrebnsgq"), "pfkna", 1, 1, 1);
+    test(S("getcrsaoji"), "ekosa", 1, 2, 2);
+    test(S("fjiknedcpq"), "anqhk", 1, 4, 1);
+    test(S("tkejgnafrm"), "jekca", 1, 5, 4);
+    test(S("jnakolqrde"), "ikemsjgacf", 1, 0, 1);
+    test(S("lcjptsmgbe"), "arolgsjkhm", 1, 1, 1);
+    test(S("itfsmcjorl"), "oftkbldhre", 1, 5, 3);
+    test(S("omchkfrjea"), "gbkqdoeftl", 1, 9, 1);
+    test(S("cigfqkated"), "sqcflrgtim", 1, 10, 5);
+    test(S("tscenjikml"), "fmhbkislrjdpanogqcet", 1, 0, 1);
+    test(S("qcpaemsinf"), "rnioadktqlgpbcjsmhef", 1, 1, 1);
+    test(S("gltkojeipd"), "oakgtnldpsefihqmjcbr", 1, 10, 5);
+    test(S("qistfrgnmp"), "gbnaelosidmcjqktfhpr", 1, 19, 5);
+    test(S("bdnpfcqaem"), "akbripjhlosndcmqgfet", 1, 20, S::npos);
+    test(S("ectnhskflp"), "", 5, 0, 5);
+    test(S("fgtianblpq"), "pijag", 5, 0, 5);
+    test(S("mfeqklirnh"), "jrckd", 5, 1, 5);
+    test(S("astedncjhk"), "qcloh", 5, 2, 5);
+    test(S("fhlqgcajbr"), "thlmp", 5, 4, 5);
+    test(S("epfhocmdng"), "qidmo", 5, 5, 5);
+    test(S("apcnsibger"), "lnegpsjqrd", 5, 0, 5);
+    test(S("aqkocrbign"), "rjqdablmfs", 5, 1, 6);
+    test(S("ijsmdtqgce"), "enkgpbsjaq", 5, 5, 5);
+    test(S("clobgsrken"), "kdsgoaijfh", 5, 9, 6);
+    test(S("jbhcfposld"), "trfqgmckbe", 5, 10, 5);
+    test(S("oqnpblhide"), "igetsracjfkdnpoblhqm", 5, 0, 5);
+    test(S("lroeasctif"), "nqctfaogirshlekbdjpm", 5, 1, 5);
+    test(S("bpjlgmiedh"), "csehfgomljdqinbartkp", 5, 10, 6);
+    test(S("pamkeoidrj"), "qahoegcmplkfsjbdnitr", 5, 19, 8);
+    test(S("espogqbthk"), "dpteiajrqmsognhlfbkc", 5, 20, S::npos);
+    test(S("shoiedtcjb"), "", 9, 0, 9);
+    test(S("ebcinjgads"), "tqbnh", 9, 0, 9);
+    test(S("dqmregkcfl"), "akmle", 9, 1, 9);
+    test(S("ngcrieqajf"), "iqfkm", 9, 2, 9);
+    test(S("qosmilgnjb"), "tqjsr", 9, 4, 9);
+    test(S("ikabsjtdfl"), "jplqg", 9, 5, S::npos);
+    test(S("ersmicafdh"), "oilnrbcgtj", 9, 0, 9);
+    test(S("fdnplotmgh"), "morkglpesn", 9, 1, 9);
+    test(S("fdbicojerm"), "dmicerngat", 9, 5, S::npos);
+    test(S("mbtafndjcq"), "radgeskbtc", 9, 9, 9);
+    test(S("mlenkpfdtc"), "ljikprsmqo", 9, 10, 9);
+    test(S("ahlcifdqgs"), "trqihkcgsjamfdbolnpe", 9, 0, 9);
+    test(S("bgjemaltks"), "lqmthbsrekajgnofcipd", 9, 1, 9);
+    test(S("pdhslbqrfc"), "jtalmedribkgqsopcnfh", 9, 10, 9);
+    test(S("dirhtsnjkc"), "spqfoiclmtagejbndkrh", 9, 19, S::npos);
+    test(S("dlroktbcja"), "nmotklspigjrdhcfaebq", 9, 20, S::npos);
+    test(S("ncjpmaekbs"), "", 10, 0, S::npos);
+    test(S("hlbosgmrak"), "hpmsd", 10, 0, S::npos);
+    test(S("pqfhsgilen"), "qnpor", 10, 1, S::npos);
+    test(S("gqtjsbdckh"), "otdma", 10, 2, S::npos);
+    test(S("cfkqpjlegi"), "efhjg", 10, 4, S::npos);
+    test(S("beanrfodgj"), "odpte", 10, 5, S::npos);
+    test(S("adtkqpbjfi"), "bctdgfmolr", 10, 0, S::npos);
+    test(S("iomkfthagj"), "oaklidrbqg", 10, 1, S::npos);
+}
+
+template <class S>
+void test2()
+{
+    test(S("sdpcilonqj"), "dnjfsagktr", 10, 5, S::npos);
+    test(S("gtfbdkqeml"), "nejaktmiqg", 10, 9, S::npos);
+    test(S("bmeqgcdorj"), "pjqonlebsf", 10, 10, S::npos);
+    test(S("etqlcanmob"), "dshmnbtolcjepgaikfqr", 10, 0, S::npos);
+    test(S("roqmkbdtia"), "iogfhpabtjkqlrnemcds", 10, 1, S::npos);
+    test(S("kadsithljf"), "ngridfabjsecpqltkmoh", 10, 10, S::npos);
+    test(S("sgtkpbfdmh"), "athmknplcgofrqejsdib", 10, 19, S::npos);
+    test(S("qgmetnabkl"), "ldobhmqcafnjtkeisgrp", 10, 20, S::npos);
+    test(S("cqjohampgd"), "", 11, 0, S::npos);
+    test(S("hobitmpsan"), "aocjb", 11, 0, S::npos);
+    test(S("tjehkpsalm"), "jbrnk", 11, 1, S::npos);
+    test(S("ngfbojitcl"), "tqedg", 11, 2, S::npos);
+    test(S("rcfkdbhgjo"), "nqskp", 11, 4, S::npos);
+    test(S("qghptonrea"), "eaqkl", 11, 5, S::npos);
+    test(S("hnprfgqjdl"), "reaoicljqm", 11, 0, S::npos);
+    test(S("hlmgabenti"), "lsftgajqpm", 11, 1, S::npos);
+    test(S("ofcjanmrbs"), "rlpfogmits", 11, 5, S::npos);
+    test(S("jqedtkornm"), "shkncmiaqj", 11, 9, S::npos);
+    test(S("rfedlasjmg"), "fpnatrhqgs", 11, 10, S::npos);
+    test(S("talpqjsgkm"), "sjclemqhnpdbgikarfot", 11, 0, S::npos);
+    test(S("lrkcbtqpie"), "otcmedjikgsfnqbrhpla", 11, 1, S::npos);
+    test(S("cipogdskjf"), "bonsaefdqiprkhlgtjcm", 11, 10, S::npos);
+    test(S("nqedcojahi"), "egpscmahijlfnkrodqtb", 11, 19, S::npos);
+    test(S("hefnrkmctj"), "kmqbfepjthgilscrndoa", 11, 20, S::npos);
+    test(S("atqirnmekfjolhpdsgcb"), "", 0, 0, 0);
+    test(S("echfkmlpribjnqsaogtd"), "prboq", 0, 0, 0);
+    test(S("qnhiftdgcleajbpkrosm"), "fjcqh", 0, 1, 0);
+    test(S("chamfknorbedjitgslpq"), "fmosa", 0, 2, 0);
+    test(S("njhqpibfmtlkaecdrgso"), "qdbok", 0, 4, 0);
+    test(S("ebnghfsqkprmdcljoiat"), "amslg", 0, 5, 0);
+    test(S("letjomsgihfrpqbkancd"), "smpltjneqb", 0, 0, 0);
+    test(S("nblgoipcrqeaktshjdmf"), "flitskrnge", 0, 1, 0);
+    test(S("cehkbngtjoiflqapsmrd"), "pgqihmlbef", 0, 5, 0);
+    test(S("mignapfoklbhcqjetdrs"), "cfpdqjtgsb", 0, 9, 0);
+    test(S("ceatbhlsqjgpnokfrmdi"), "htpsiaflom", 0, 10, 0);
+    test(S("ocihkjgrdelpfnmastqb"), "kpjfiaceghsrdtlbnomq", 0, 0, 0);
+    test(S("noelgschdtbrjfmiqkap"), "qhtbomidljgafneksprc", 0, 1, 0);
+    test(S("dkclqfombepritjnghas"), "nhtjobkcefldimpsaqgr", 0, 10, 0);
+    test(S("miklnresdgbhqcojftap"), "prabcjfqnoeskilmtgdh", 0, 19, 11);
+    test(S("htbcigojaqmdkfrnlsep"), "dtrgmchilkasqoebfpjn", 0, 20, S::npos);
+    test(S("febhmqtjanokscdirpgl"), "", 1, 0, 1);
+    test(S("loakbsqjpcrdhftniegm"), "sqome", 1, 0, 1);
+    test(S("reagphsqflbitdcjmkno"), "smfte", 1, 1, 1);
+    test(S("jitlfrqemsdhkopncabg"), "ciboh", 1, 2, 2);
+    test(S("mhtaepscdnrjqgbkifol"), "haois", 1, 4, 2);
+    test(S("tocesrfmnglpbjihqadk"), "abfki", 1, 5, 1);
+    test(S("lpfmctjrhdagneskbqoi"), "frdkocntmq", 1, 0, 1);
+    test(S("lsmqaepkdhncirbtjfgo"), "oasbpedlnr", 1, 1, 1);
+    test(S("epoiqmtldrabnkjhcfsg"), "kltqmhgand", 1, 5, 1);
+    test(S("emgasrilpknqojhtbdcf"), "gdtfjchpmr", 1, 9, 3);
+    test(S("hnfiagdpcklrjetqbsom"), "ponmcqblet", 1, 10, 2);
+    test(S("nsdfebgajhmtricpoklq"), "sgphqdnofeiklatbcmjr", 1, 0, 1);
+    test(S("atjgfsdlpobmeiqhncrk"), "ljqprsmigtfoneadckbh", 1, 1, 1);
+    test(S("sitodfgnrejlahcbmqkp"), "ligeojhafnkmrcsqtbdp", 1, 10, 2);
+    test(S("fraghmbiceknltjpqosd"), "lsimqfnjarbopedkhcgt", 1, 19, 13);
+    test(S("pmafenlhqtdbkirjsogc"), "abedmfjlghniorcqptks", 1, 20, S::npos);
+    test(S("pihgmoeqtnakrjslcbfd"), "", 10, 0, 10);
+    test(S("gjdkeprctqblnhiafsom"), "hqtoa", 10, 0, 10);
+    test(S("mkpnblfdsahrcqijteog"), "cahif", 10, 1, 10);
+    test(S("gckarqnelodfjhmbptis"), "kehis", 10, 2, 10);
+    test(S("gqpskidtbclomahnrjfe"), "kdlmh", 10, 4, 11);
+    test(S("pkldjsqrfgitbhmaecno"), "paeql", 10, 5, 10);
+    test(S("aftsijrbeklnmcdqhgop"), "aghoqiefnb", 10, 0, 10);
+    test(S("mtlgdrhafjkbiepqnsoc"), "jrbqaikpdo", 10, 1, 10);
+    test(S("pqgirnaefthokdmbsclj"), "smjonaeqcl", 10, 5, 10);
+    test(S("kpdbgjmtherlsfcqoina"), "eqbdrkcfah", 10, 9, 11);
+    test(S("jrlbothiknqmdgcfasep"), "kapmsienhf", 10, 10, 10);
+    test(S("mjogldqferckabinptsh"), "jpqotrlenfcsbhkaimdg", 10, 0, 10);
+    test(S("apoklnefbhmgqcdrisjt"), "jlbmhnfgtcqprikeados", 10, 1, 10);
+    test(S("ifeopcnrjbhkdgatmqls"), "stgbhfmdaljnpqoicker", 10, 10, 11);
+    test(S("ckqhaiesmjdnrgolbtpf"), "oihcetflbjagdsrkmqpn", 10, 19, 11);
+    test(S("bnlgapfimcoterskqdjh"), "adtclebmnpjsrqfkigoh", 10, 20, S::npos);
+    test(S("kgdlrobpmjcthqsafeni"), "", 19, 0, 19);
+    test(S("dfkechomjapgnslbtqir"), "beafg", 19, 0, 19);
+    test(S("rloadknfbqtgmhcsipje"), "iclat", 19, 1, 19);
+    test(S("mgjhkolrnadqbpetcifs"), "rkhnf", 19, 2, 19);
+    test(S("cmlfakiojdrgtbsphqen"), "clshq", 19, 4, 19);
+    test(S("kghbfipeomsntdalrqjc"), "dtcoj", 19, 5, S::npos);
+    test(S("eldiqckrnmtasbghjfpo"), "rqosnjmfth", 19, 0, 19);
+    test(S("abqjcfedgotihlnspkrm"), "siatdfqglh", 19, 1, 19);
+    test(S("qfbadrtjsimkolcenhpg"), "mrlshtpgjq", 19, 5, 19);
+    test(S("abseghclkjqifmtodrnp"), "adlcskgqjt", 19, 9, 19);
+    test(S("ibmsnlrjefhtdokacqpg"), "drshcjknaf", 19, 10, 19);
+    test(S("mrkfciqjebaponsthldg"), "etsaqroinghpkjdlfcbm", 19, 0, 19);
+    test(S("mjkticdeoqshpalrfbgn"), "sgepdnkqliambtrocfhj", 19, 1, 19);
+    test(S("rqnoclbdejgiphtfsakm"), "nlmcjaqgbsortfdihkpe", 19, 10, S::npos);
+    test(S("plkqbhmtfaeodjcrsing"), "racfnpmosldibqkghjet", 19, 19, S::npos);
+    test(S("oegalhmstjrfickpbndq"), "fjhdsctkqeiolagrnmbp", 19, 20, S::npos);
+    test(S("rdtgjcaohpblniekmsfq"), "", 20, 0, S::npos);
+    test(S("ofkqbnjetrmsaidphglc"), "ejanp", 20, 0, S::npos);
+    test(S("grkpahljcftesdmonqib"), "odife", 20, 1, S::npos);
+    test(S("jimlgbhfqkteospardcn"), "okaqd", 20, 2, S::npos);
+    test(S("gftenihpmslrjkqadcob"), "lcdbi", 20, 4, S::npos);
+    test(S("bmhldogtckrfsanijepq"), "fsqbj", 20, 5, S::npos);
+    test(S("nfqkrpjdesabgtlcmoih"), "bigdomnplq", 20, 0, S::npos);
+    test(S("focalnrpiqmdkstehbjg"), "apiblotgcd", 20, 1, S::npos);
+    test(S("rhqdspkmebiflcotnjga"), "acfhdenops", 20, 5, S::npos);
+    test(S("rahdtmsckfboqlpniegj"), "jopdeamcrk", 20, 9, S::npos);
+    test(S("fbkeiopclstmdqranjhg"), "trqncbkgmh", 20, 10, S::npos);
+    test(S("lifhpdgmbconstjeqark"), "tomglrkencbsfjqpihda", 20, 0, S::npos);
+}
+
+template <class S>
+void test3()
+{
+    test(S("pboqganrhedjmltsicfk"), "gbkhdnpoietfcmrslajq", 20, 1, S::npos);
+    test(S("klchabsimetjnqgorfpd"), "rtfnmbsglkjaichoqedp", 20, 10, S::npos);
+    test(S("sirfgmjqhctndbklaepo"), "ohkmdpfqbsacrtjnlgei", 20, 19, S::npos);
+    test(S("rlbdsiceaonqjtfpghkm"), "dlbrteoisgphmkncajfq", 20, 20, S::npos);
+    test(S("ecgdanriptblhjfqskom"), "", 21, 0, S::npos);
+    test(S("fdmiarlpgcskbhoteqjn"), "sjrlo", 21, 0, S::npos);
+    test(S("rlbstjqopignecmfadkh"), "qjpor", 21, 1, S::npos);
+    test(S("grjpqmbshektdolcafni"), "odhfn", 21, 2, S::npos);
+    test(S("sakfcohtqnibprjmlged"), "qtfin", 21, 4, S::npos);
+    test(S("mjtdglasihqpocebrfkn"), "hpqfo", 21, 5, S::npos);
+    test(S("okaplfrntghqbmeicsdj"), "fabmertkos", 21, 0, S::npos);
+    test(S("sahngemrtcjidqbklfpo"), "brqtgkmaej", 21, 1, S::npos);
+    test(S("dlmsipcnekhbgoaftqjr"), "nfrdeihsgl", 21, 5, S::npos);
+    test(S("ahegrmqnoiklpfsdbcjt"), "hlfrosekpi", 21, 9, S::npos);
+    test(S("hdsjbnmlegtkqripacof"), "atgbkrjdsm", 21, 10, S::npos);
+    test(S("pcnedrfjihqbalkgtoms"), "blnrptjgqmaifsdkhoec", 21, 0, S::npos);
+    test(S("qjidealmtpskrbfhocng"), "ctpmdahebfqjgknloris", 21, 1, S::npos);
+    test(S("qeindtagmokpfhsclrbj"), "apnkeqthrmlbfodiscgj", 21, 10, S::npos);
+    test(S("kpfegbjhsrnodltqciam"), "jdgictpframeoqlsbknh", 21, 19, S::npos);
+    test(S("hnbrcplsjfgiktoedmaq"), "qprlsfojamgndekthibc", 21, 20, S::npos);
+}
+
+int main()
+{
+    {
+    typedef std::experimental::string_view S;
+    test0<S>();
+    test1<S>();
+    test2<S>();
+    test3<S>();
+    }
+
+#if _LIBCPP_STD_VER > 11
+    {
+    typedef std::experimental::basic_string_view<char, constexpr_char_traits<char>> SV;
+    constexpr SV  sv1;
+    constexpr SV  sv2 { "abcde", 5 };
+
+    static_assert (sv1.find_first_not_of( "",      0, 0) == SV::npos, "" );
+    static_assert (sv1.find_first_not_of( "irkhs", 0, 5) == SV::npos, "" );
+    static_assert (sv2.find_first_not_of( "",      0, 0) == 0, "" );
+    static_assert (sv2.find_first_not_of( "gfsrt", 0, 5) == 0, "" );
+    static_assert (sv2.find_first_not_of( "lecar", 0, 5) == 1, "" );
+    }
+#endif
+}

Added: libcxx/trunk/test/std/experimental/string.view/string.view.find/find_first_not_of_string_view_size.pass.cpp
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/test/std/experimental/string.view/string.view.find/find_first_not_of_string_view_size.pass.cpp?rev=224658&view=auto
==============================================================================
--- libcxx/trunk/test/std/experimental/string.view/string.view.find/find_first_not_of_string_view_size.pass.cpp (added)
+++ libcxx/trunk/test/std/experimental/string.view/string.view.find/find_first_not_of_string_view_size.pass.cpp Fri Dec 19 19:40:03 2014
@@ -0,0 +1,148 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <string_view>
+
+// size_type find_first_not_of(const basic_string& str, size_type pos = 0) const;
+
+#include <experimental/string_view>
+#include <cassert>
+
+template <class S>
+void
+test(const S& s, const S& str, typename S::size_type pos, typename S::size_type x)
+{
+    assert(s.find_first_not_of(str, pos) == x);
+    if (x != S::npos)
+        assert(pos <= x && x < s.size());
+}
+
+template <class S>
+void
+test(const S& s, const S& str, typename S::size_type x)
+{
+    assert(s.find_first_not_of(str) == x);
+    if (x != S::npos)
+        assert(x < s.size());
+}
+
+template <class S>
+void test0()
+{
+    test(S(""), S(""), 0, S::npos);
+    test(S(""), S("laenf"), 0, S::npos);
+    test(S(""), S("pqlnkmbdjo"), 0, S::npos);
+    test(S(""), S("qkamfogpnljdcshbreti"), 0, S::npos);
+    test(S(""), S(""), 1, S::npos);
+    test(S(""), S("bjaht"), 1, S::npos);
+    test(S(""), S("hjlcmgpket"), 1, S::npos);
+    test(S(""), S("htaobedqikfplcgjsmrn"), 1, S::npos);
+    test(S("fodgq"), S(""), 0, 0);
+    test(S("qanej"), S("dfkap"), 0, 0);
+    test(S("clbao"), S("ihqrfebgad"), 0, 0);
+    test(S("mekdn"), S("ngtjfcalbseiqrphmkdo"), 0, S::npos);
+    test(S("srdfq"), S(""), 1, 1);
+    test(S("oemth"), S("ikcrq"), 1, 1);
+    test(S("cdaih"), S("dmajblfhsg"), 1, 3);
+    test(S("qohtk"), S("oqftjhdmkgsblacenirp"), 1, S::npos);
+    test(S("cshmd"), S(""), 2, 2);
+    test(S("lhcdo"), S("oebqi"), 2, 2);
+    test(S("qnsoh"), S("kojhpmbsfe"), 2, S::npos);
+    test(S("pkrof"), S("acbsjqogpltdkhinfrem"), 2, S::npos);
+    test(S("fmtsp"), S(""), 4, 4);
+    test(S("khbpm"), S("aobjd"), 4, 4);
+    test(S("pbsji"), S("pcbahntsje"), 4, 4);
+    test(S("mprdj"), S("fhepcrntkoagbmldqijs"), 4, S::npos);
+    test(S("eqmpa"), S(""), 5, S::npos);
+    test(S("omigs"), S("kocgb"), 5, S::npos);
+    test(S("onmje"), S("fbslrjiqkm"), 5, S::npos);
+    test(S("oqmrj"), S("jeidpcmalhfnqbgtrsko"), 5, S::npos);
+    test(S("schfa"), S(""), 6, S::npos);
+    test(S("igdsc"), S("qngpd"), 6, S::npos);
+    test(S("brqgo"), S("rodhqklgmb"), 6, S::npos);
+    test(S("tnrph"), S("thdjgafrlbkoiqcspmne"), 6, S::npos);
+    test(S("hcjitbfapl"), S(""), 0, 0);
+    test(S("daiprenocl"), S("ashjd"), 0, 2);
+    test(S("litpcfdghe"), S("mgojkldsqh"), 0, 1);
+    test(S("aidjksrolc"), S("imqnaghkfrdtlopbjesc"), 0, S::npos);
+    test(S("qpghtfbaji"), S(""), 1, 1);
+    test(S("gfshlcmdjr"), S("nadkh"), 1, 1);
+    test(S("nkodajteqp"), S("ofdrqmkebl"), 1, 4);
+    test(S("gbmetiprqd"), S("bdfjqgatlksriohemnpc"), 1, S::npos);
+    test(S("crnklpmegd"), S(""), 5, 5);
+    test(S("jsbtafedoc"), S("prqgn"), 5, 5);
+    test(S("qnmodrtkeb"), S("pejafmnokr"), 5, 6);
+    test(S("cpebqsfmnj"), S("odnqkgijrhabfmcestlp"), 5, S::npos);
+    test(S("lmofqdhpki"), S(""), 9, 9);
+    test(S("hnefkqimca"), S("rtjpa"), 9, S::npos);
+    test(S("drtasbgmfp"), S("ktsrmnqagd"), 9, 9);
+    test(S("lsaijeqhtr"), S("rtdhgcisbnmoaqkfpjle"), 9, S::npos);
+    test(S("elgofjmbrq"), S(""), 10, S::npos);
+    test(S("mjqdgalkpc"), S("dplqa"), 10, S::npos);
+    test(S("kthqnfcerm"), S("dkacjoptns"), 10, S::npos);
+    test(S("dfsjhanorc"), S("hqfimtrgnbekpdcsjalo"), 10, S::npos);
+    test(S("eqsgalomhb"), S(""), 11, S::npos);
+    test(S("akiteljmoh"), S("lofbc"), 11, S::npos);
+    test(S("hlbdfreqjo"), S("astoegbfpn"), 11, S::npos);
+    test(S("taqobhlerg"), S("pdgreqomsncafklhtibj"), 11, S::npos);
+    test(S("snafbdlghrjkpqtoceim"), S(""), 0, 0);
+    test(S("aemtbrgcklhndjisfpoq"), S("lbtqd"), 0, 0);
+    test(S("pnracgfkjdiholtbqsem"), S("tboimldpjh"), 0, 1);
+    test(S("dicfltehbsgrmojnpkaq"), S("slcerthdaiqjfnobgkpm"), 0, S::npos);
+    test(S("jlnkraeodhcspfgbqitm"), S(""), 1, 1);
+    test(S("lhosrngtmfjikbqpcade"), S("aqibs"), 1, 1);
+    test(S("rbtaqjhgkneisldpmfoc"), S("gtfblmqinc"), 1, 3);
+    test(S("gpifsqlrdkbonjtmheca"), S("mkqpbtdalgniorhfescj"), 1, S::npos);
+    test(S("hdpkobnsalmcfijregtq"), S(""), 10, 10);
+    test(S("jtlshdgqaiprkbcoenfm"), S("pblas"), 10, 11);
+    test(S("fkdrbqltsgmcoiphneaj"), S("arosdhcfme"), 10, 13);
+    test(S("crsplifgtqedjohnabmk"), S("blkhjeogicatqfnpdmsr"), 10, S::npos);
+    test(S("niptglfbosehkamrdqcj"), S(""), 19, 19);
+    test(S("copqdhstbingamjfkler"), S("djkqc"), 19, 19);
+    test(S("mrtaefilpdsgocnhqbjk"), S("lgokshjtpb"), 19, S::npos);
+    test(S("kojatdhlcmigpbfrqnes"), S("bqjhtkfepimcnsgrlado"), 19, S::npos);
+    test(S("eaintpchlqsbdgrkjofm"), S(""), 20, S::npos);
+    test(S("gjnhidfsepkrtaqbmclo"), S("nocfa"), 20, S::npos);
+    test(S("spocfaktqdbiejlhngmr"), S("bgtajmiedc"), 20, S::npos);
+    test(S("rphmlekgfscndtaobiqj"), S("lsckfnqgdahejiopbtmr"), 20, S::npos);
+    test(S("liatsqdoegkmfcnbhrpj"), S(""), 21, S::npos);
+    test(S("binjagtfldkrspcomqeh"), S("gfsrt"), 21, S::npos);
+    test(S("latkmisecnorjbfhqpdg"), S("pfsocbhjtm"), 21, S::npos);
+    test(S("lecfratdjkhnsmqpoigb"), S("tpflmdnoicjgkberhqsa"), 21, S::npos);
+}
+
+template <class S>
+void test1()
+{
+    test(S(""), S(""), S::npos);
+    test(S(""), S("laenf"), S::npos);
+    test(S(""), S("pqlnkmbdjo"), S::npos);
+    test(S(""), S("qkamfogpnljdcshbreti"), S::npos);
+    test(S("nhmko"), S(""), 0);
+    test(S("lahfb"), S("irkhs"), 0);
+    test(S("gmfhd"), S("kantesmpgj"), 2);
+    test(S("odaft"), S("oknlrstdpiqmjbaghcfe"), S::npos);
+    test(S("eolhfgpjqk"), S(""), 0);
+    test(S("nbatdlmekr"), S("bnrpe"), 2);
+    test(S("jdmciepkaq"), S("jtdaefblso"), 2);
+    test(S("hkbgspoflt"), S("oselktgbcapndfjihrmq"), S::npos);
+    test(S("gprdcokbnjhlsfmtieqa"), S(""), 0);
+    test(S("qjghlnftcaismkropdeb"), S("bjaht"), 0);
+    test(S("pnalfrdtkqcmojiesbhg"), S("hjlcmgpket"), 1);
+    test(S("pniotcfrhqsmgdkjbael"), S("htaobedqikfplcgjsmrn"), S::npos);
+}
+
+int main()
+{
+    {
+    typedef std::experimental::string_view S;
+    test0<S>();
+    test1<S>();
+    }
+}

Added: libcxx/trunk/test/std/experimental/string.view/string.view.find/find_first_of_char_size.pass.cpp
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/test/std/experimental/string.view/string.view.find/find_first_of_char_size.pass.cpp?rev=224658&view=auto
==============================================================================
--- libcxx/trunk/test/std/experimental/string.view/string.view.find/find_first_of_char_size.pass.cpp (added)
+++ libcxx/trunk/test/std/experimental/string.view/string.view.find/find_first_of_char_size.pass.cpp Fri Dec 19 19:40:03 2014
@@ -0,0 +1,82 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <string>
+
+// constexpr size_type find_first_of(charT c, size_type pos = 0) const;
+
+#include <experimental/string_view>
+#include <cassert>
+
+#include "constexpr_char_traits.hpp"
+
+template <class S>
+void
+test(const S& s, typename S::value_type c, typename S::size_type pos,
+     typename S::size_type x)
+{
+    assert(s.find_first_of(c, pos) == x);
+    if (x != S::npos)
+        assert(pos <= x && x < s.size());
+}
+
+template <class S>
+void
+test(const S& s, typename S::value_type c, typename S::size_type x)
+{
+    assert(s.find_first_of(c) == x);
+    if (x != S::npos)
+        assert(x < s.size());
+}
+
+int main()
+{
+    {
+    typedef std::experimental::string_view S;
+    test(S(""), 'e', 0, S::npos);
+    test(S(""), 'e', 1, S::npos);
+    test(S("kitcj"), 'e', 0, S::npos);
+    test(S("qkamf"), 'e', 1, S::npos);
+    test(S("nhmko"), 'e', 2, S::npos);
+    test(S("tpsaf"), 'e', 4, S::npos);
+    test(S("lahfb"), 'e', 5, S::npos);
+    test(S("irkhs"), 'e', 6, S::npos);
+    test(S("gmfhdaipsr"), 'e', 0, S::npos);
+    test(S("kantesmpgj"), 'e', 1, 4);
+    test(S("odaftiegpm"), 'e', 5, 6);
+    test(S("oknlrstdpi"), 'e', 9, S::npos);
+    test(S("eolhfgpjqk"), 'e', 10, S::npos);
+    test(S("pcdrofikas"), 'e', 11, S::npos);
+    test(S("nbatdlmekrgcfqsophij"), 'e', 0, 7);
+    test(S("bnrpehidofmqtcksjgla"), 'e', 1, 4);
+    test(S("jdmciepkaqgotsrfnhlb"), 'e', 10, S::npos);
+    test(S("jtdaefblsokrmhpgcnqi"), 'e', 19, S::npos);
+    test(S("hkbgspofltajcnedqmri"), 'e', 20, S::npos);
+    test(S("oselktgbcapndfjihrmq"), 'e', 21, S::npos);
+
+    test(S(""), 'e', S::npos);
+    test(S("csope"), 'e', 4);
+    test(S("gfsmthlkon"), 'e', S::npos);
+    test(S("laenfsbridchgotmkqpj"), 'e', 2);
+    }
+
+#if _LIBCPP_STD_VER > 11
+    {
+    typedef std::experimental::basic_string_view<char, constexpr_char_traits<char>> SV;
+    constexpr SV  sv1;
+    constexpr SV  sv2 { "abcde", 5 };
+
+    static_assert (sv1.find_first_of( 'e', 0 ) == SV::npos, "" );
+    static_assert (sv1.find_first_of( 'e', 1 ) == SV::npos, "" );
+    static_assert (sv2.find_first_of( 'q', 0 ) == SV::npos, "" );
+    static_assert (sv2.find_first_of( 'e', 1 ) == 4, "" );
+    static_assert (sv2.find_first_of( 'e', 5 ) == SV::npos, "" );
+    }
+#endif
+}

Added: libcxx/trunk/test/std/experimental/string.view/string.view.find/find_first_of_pointer_size.pass.cpp
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/test/std/experimental/string.view/string.view.find/find_first_of_pointer_size.pass.cpp?rev=224658&view=auto
==============================================================================
--- libcxx/trunk/test/std/experimental/string.view/string.view.find/find_first_of_pointer_size.pass.cpp (added)
+++ libcxx/trunk/test/std/experimental/string.view/string.view.find/find_first_of_pointer_size.pass.cpp Fri Dec 19 19:40:03 2014
@@ -0,0 +1,165 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <string>
+
+// constexpr size_type find_first_of(const charT* s, size_type pos = 0) const;
+
+#include <experimental/string_view>
+#include <cassert>
+
+#include "constexpr_char_traits.hpp"
+
+template <class S>
+void
+test(const S& s, const typename S::value_type* str, typename S::size_type pos,
+     typename S::size_type x)
+{
+    assert(s.find_first_of(str, pos) == x);
+    if (x != S::npos)
+        assert(pos <= x && x < s.size());
+}
+
+template <class S>
+void
+test(const S& s, const typename S::value_type* str, typename S::size_type x)
+{
+    assert(s.find_first_of(str) == x);
+    if (x != S::npos)
+        assert(x < s.size());
+}
+
+template <class S>
+void test0()
+{
+    test(S(""), "", 0, S::npos);
+    test(S(""), "laenf", 0, S::npos);
+    test(S(""), "pqlnkmbdjo", 0, S::npos);
+    test(S(""), "qkamfogpnljdcshbreti", 0, S::npos);
+    test(S(""), "", 1, S::npos);
+    test(S(""), "bjaht", 1, S::npos);
+    test(S(""), "hjlcmgpket", 1, S::npos);
+    test(S(""), "htaobedqikfplcgjsmrn", 1, S::npos);
+    test(S("fodgq"), "", 0, S::npos);
+    test(S("qanej"), "dfkap", 0, 1);
+    test(S("clbao"), "ihqrfebgad", 0, 2);
+    test(S("mekdn"), "ngtjfcalbseiqrphmkdo", 0, 0);
+    test(S("srdfq"), "", 1, S::npos);
+    test(S("oemth"), "ikcrq", 1, S::npos);
+    test(S("cdaih"), "dmajblfhsg", 1, 1);
+    test(S("qohtk"), "oqftjhdmkgsblacenirp", 1, 1);
+    test(S("cshmd"), "", 2, S::npos);
+    test(S("lhcdo"), "oebqi", 2, 4);
+    test(S("qnsoh"), "kojhpmbsfe", 2, 2);
+    test(S("pkrof"), "acbsjqogpltdkhinfrem", 2, 2);
+    test(S("fmtsp"), "", 4, S::npos);
+    test(S("khbpm"), "aobjd", 4, S::npos);
+    test(S("pbsji"), "pcbahntsje", 4, S::npos);
+    test(S("mprdj"), "fhepcrntkoagbmldqijs", 4, 4);
+    test(S("eqmpa"), "", 5, S::npos);
+    test(S("omigs"), "kocgb", 5, S::npos);
+    test(S("onmje"), "fbslrjiqkm", 5, S::npos);
+    test(S("oqmrj"), "jeidpcmalhfnqbgtrsko", 5, S::npos);
+    test(S("schfa"), "", 6, S::npos);
+    test(S("igdsc"), "qngpd", 6, S::npos);
+    test(S("brqgo"), "rodhqklgmb", 6, S::npos);
+    test(S("tnrph"), "thdjgafrlbkoiqcspmne", 6, S::npos);
+    test(S("hcjitbfapl"), "", 0, S::npos);
+    test(S("daiprenocl"), "ashjd", 0, 0);
+    test(S("litpcfdghe"), "mgojkldsqh", 0, 0);
+    test(S("aidjksrolc"), "imqnaghkfrdtlopbjesc", 0, 0);
+    test(S("qpghtfbaji"), "", 1, S::npos);
+    test(S("gfshlcmdjr"), "nadkh", 1, 3);
+    test(S("nkodajteqp"), "ofdrqmkebl", 1, 1);
+    test(S("gbmetiprqd"), "bdfjqgatlksriohemnpc", 1, 1);
+    test(S("crnklpmegd"), "", 5, S::npos);
+    test(S("jsbtafedoc"), "prqgn", 5, S::npos);
+    test(S("qnmodrtkeb"), "pejafmnokr", 5, 5);
+    test(S("cpebqsfmnj"), "odnqkgijrhabfmcestlp", 5, 5);
+    test(S("lmofqdhpki"), "", 9, S::npos);
+    test(S("hnefkqimca"), "rtjpa", 9, 9);
+    test(S("drtasbgmfp"), "ktsrmnqagd", 9, S::npos);
+    test(S("lsaijeqhtr"), "rtdhgcisbnmoaqkfpjle", 9, 9);
+    test(S("elgofjmbrq"), "", 10, S::npos);
+    test(S("mjqdgalkpc"), "dplqa", 10, S::npos);
+    test(S("kthqnfcerm"), "dkacjoptns", 10, S::npos);
+    test(S("dfsjhanorc"), "hqfimtrgnbekpdcsjalo", 10, S::npos);
+    test(S("eqsgalomhb"), "", 11, S::npos);
+    test(S("akiteljmoh"), "lofbc", 11, S::npos);
+    test(S("hlbdfreqjo"), "astoegbfpn", 11, S::npos);
+    test(S("taqobhlerg"), "pdgreqomsncafklhtibj", 11, S::npos);
+    test(S("snafbdlghrjkpqtoceim"), "", 0, S::npos);
+    test(S("aemtbrgcklhndjisfpoq"), "lbtqd", 0, 3);
+    test(S("pnracgfkjdiholtbqsem"), "tboimldpjh", 0, 0);
+    test(S("dicfltehbsgrmojnpkaq"), "slcerthdaiqjfnobgkpm", 0, 0);
+    test(S("jlnkraeodhcspfgbqitm"), "", 1, S::npos);
+    test(S("lhosrngtmfjikbqpcade"), "aqibs", 1, 3);
+    test(S("rbtaqjhgkneisldpmfoc"), "gtfblmqinc", 1, 1);
+    test(S("gpifsqlrdkbonjtmheca"), "mkqpbtdalgniorhfescj", 1, 1);
+    test(S("hdpkobnsalmcfijregtq"), "", 10, S::npos);
+    test(S("jtlshdgqaiprkbcoenfm"), "pblas", 10, 10);
+    test(S("fkdrbqltsgmcoiphneaj"), "arosdhcfme", 10, 10);
+    test(S("crsplifgtqedjohnabmk"), "blkhjeogicatqfnpdmsr", 10, 10);
+    test(S("niptglfbosehkamrdqcj"), "", 19, S::npos);
+    test(S("copqdhstbingamjfkler"), "djkqc", 19, S::npos);
+    test(S("mrtaefilpdsgocnhqbjk"), "lgokshjtpb", 19, 19);
+    test(S("kojatdhlcmigpbfrqnes"), "bqjhtkfepimcnsgrlado", 19, 19);
+    test(S("eaintpchlqsbdgrkjofm"), "", 20, S::npos);
+    test(S("gjnhidfsepkrtaqbmclo"), "nocfa", 20, S::npos);
+    test(S("spocfaktqdbiejlhngmr"), "bgtajmiedc", 20, S::npos);
+    test(S("rphmlekgfscndtaobiqj"), "lsckfnqgdahejiopbtmr", 20, S::npos);
+    test(S("liatsqdoegkmfcnbhrpj"), "", 21, S::npos);
+    test(S("binjagtfldkrspcomqeh"), "gfsrt", 21, S::npos);
+    test(S("latkmisecnorjbfhqpdg"), "pfsocbhjtm", 21, S::npos);
+    test(S("lecfratdjkhnsmqpoigb"), "tpflmdnoicjgkberhqsa", 21, S::npos);
+}
+
+template <class S>
+void test1()
+{
+    test(S(""), "", S::npos);
+    test(S(""), "laenf", S::npos);
+    test(S(""), "pqlnkmbdjo", S::npos);
+    test(S(""), "qkamfogpnljdcshbreti", S::npos);
+    test(S("nhmko"), "", S::npos);
+    test(S("lahfb"), "irkhs", 2);
+    test(S("gmfhd"), "kantesmpgj", 0);
+    test(S("odaft"), "oknlrstdpiqmjbaghcfe", 0);
+    test(S("eolhfgpjqk"), "", S::npos);
+    test(S("nbatdlmekr"), "bnrpe", 0);
+    test(S("jdmciepkaq"), "jtdaefblso", 0);
+    test(S("hkbgspoflt"), "oselktgbcapndfjihrmq", 0);
+    test(S("gprdcokbnjhlsfmtieqa"), "", S::npos);
+    test(S("qjghlnftcaismkropdeb"), "bjaht", 1);
+    test(S("pnalfrdtkqcmojiesbhg"), "hjlcmgpket", 0);
+    test(S("pniotcfrhqsmgdkjbael"), "htaobedqikfplcgjsmrn", 0);
+}
+
+int main()
+{
+    {
+    typedef std::experimental::string_view S;
+    test0<S>();
+    test1<S>();
+    }
+
+#if _LIBCPP_STD_VER > 11
+    {
+    typedef std::experimental::basic_string_view<char, constexpr_char_traits<char>> SV;
+    constexpr SV  sv1;
+    constexpr SV  sv2 { "abcde", 5 };
+
+    static_assert (sv1.find_first_of( "",      0) == SV::npos, "" );
+    static_assert (sv1.find_first_of( "irkhs", 0) == SV::npos, "" );
+    static_assert (sv2.find_first_of( "",      0) == SV::npos, "" );
+    static_assert (sv2.find_first_of( "gfsrt", 0) == SV::npos, "" );
+    static_assert (sv2.find_first_of( "lecar", 0) == 0, "" );
+    }
+#endif
+}

Added: libcxx/trunk/test/std/experimental/string.view/string.view.find/find_first_of_pointer_size_size.pass.cpp
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/test/std/experimental/string.view/string.view.find/find_first_of_pointer_size_size.pass.cpp?rev=224658&view=auto
==============================================================================
--- libcxx/trunk/test/std/experimental/string.view/string.view.find/find_first_of_pointer_size_size.pass.cpp (added)
+++ libcxx/trunk/test/std/experimental/string.view/string.view.find/find_first_of_pointer_size_size.pass.cpp Fri Dec 19 19:40:03 2014
@@ -0,0 +1,392 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <string>
+
+// constexpr size_type find_first_of(const charT* s, size_type pos, size_type n) const;
+
+#include <experimental/string_view>
+#include <cassert>
+
+#include "constexpr_char_traits.hpp"
+
+template <class S>
+void
+test(const S& s, const typename S::value_type* str, typename S::size_type pos,
+     typename S::size_type n, typename S::size_type x)
+{
+    assert(s.find_first_of(str, pos, n) == x);
+    if (x != S::npos)
+        assert(pos <= x && x < s.size());
+}
+
+template <class S>
+void test0()
+{
+    test(S(""), "", 0, 0, S::npos);
+    test(S(""), "irkhs", 0, 0, S::npos);
+    test(S(""), "kante", 0, 1, S::npos);
+    test(S(""), "oknlr", 0, 2, S::npos);
+    test(S(""), "pcdro", 0, 4, S::npos);
+    test(S(""), "bnrpe", 0, 5, S::npos);
+    test(S(""), "jtdaefblso", 0, 0, S::npos);
+    test(S(""), "oselktgbca", 0, 1, S::npos);
+    test(S(""), "eqgaplhckj", 0, 5, S::npos);
+    test(S(""), "bjahtcmnlp", 0, 9, S::npos);
+    test(S(""), "hjlcmgpket", 0, 10, S::npos);
+    test(S(""), "htaobedqikfplcgjsmrn", 0, 0, S::npos);
+    test(S(""), "hpqiarojkcdlsgnmfetb", 0, 1, S::npos);
+    test(S(""), "dfkaprhjloqetcsimnbg", 0, 10, S::npos);
+    test(S(""), "ihqrfebgadntlpmjksoc", 0, 19, S::npos);
+    test(S(""), "ngtjfcalbseiqrphmkdo", 0, 20, S::npos);
+    test(S(""), "", 1, 0, S::npos);
+    test(S(""), "lbtqd", 1, 0, S::npos);
+    test(S(""), "tboim", 1, 1, S::npos);
+    test(S(""), "slcer", 1, 2, S::npos);
+    test(S(""), "cbjfs", 1, 4, S::npos);
+    test(S(""), "aqibs", 1, 5, S::npos);
+    test(S(""), "gtfblmqinc", 1, 0, S::npos);
+    test(S(""), "mkqpbtdalg", 1, 1, S::npos);
+    test(S(""), "kphatlimcd", 1, 5, S::npos);
+    test(S(""), "pblasqogic", 1, 9, S::npos);
+    test(S(""), "arosdhcfme", 1, 10, S::npos);
+    test(S(""), "blkhjeogicatqfnpdmsr", 1, 0, S::npos);
+    test(S(""), "bmhineprjcoadgstflqk", 1, 1, S::npos);
+    test(S(""), "djkqcmetslnghpbarfoi", 1, 10, S::npos);
+    test(S(""), "lgokshjtpbemarcdqnfi", 1, 19, S::npos);
+    test(S(""), "bqjhtkfepimcnsgrlado", 1, 20, S::npos);
+    test(S("eaint"), "", 0, 0, S::npos);
+    test(S("binja"), "gfsrt", 0, 0, S::npos);
+    test(S("latkm"), "pfsoc", 0, 1, S::npos);
+    test(S("lecfr"), "tpflm", 0, 2, S::npos);
+    test(S("eqkst"), "sgkec", 0, 4, 0);
+    test(S("cdafr"), "romds", 0, 5, 1);
+    test(S("prbhe"), "qhjistlgmr", 0, 0, S::npos);
+    test(S("lbisk"), "pedfirsglo", 0, 1, S::npos);
+    test(S("hrlpd"), "aqcoslgrmk", 0, 5, S::npos);
+    test(S("ehmja"), "dabckmepqj", 0, 9, 0);
+    test(S("mhqgd"), "pqscrjthli", 0, 10, 1);
+    test(S("tgklq"), "kfphdcsjqmobliagtren", 0, 0, S::npos);
+    test(S("bocjs"), "rokpefncljibsdhqtagm", 0, 1, S::npos);
+    test(S("grbsd"), "afionmkphlebtcjqsgrd", 0, 10, S::npos);
+    test(S("ofjqr"), "aenmqplidhkofrjbctsg", 0, 19, 0);
+    test(S("btlfi"), "osjmbtcadhiklegrpqnf", 0, 20, 0);
+    test(S("clrgb"), "", 1, 0, S::npos);
+    test(S("tjmek"), "osmia", 1, 0, S::npos);
+    test(S("bgstp"), "ckonl", 1, 1, S::npos);
+    test(S("hstrk"), "ilcaj", 1, 2, S::npos);
+    test(S("kmspj"), "lasiq", 1, 4, 2);
+    test(S("tjboh"), "kfqmr", 1, 5, S::npos);
+    test(S("ilbcj"), "klnitfaobg", 1, 0, S::npos);
+    test(S("jkngf"), "gjhmdlqikp", 1, 1, 3);
+    test(S("gfcql"), "skbgtahqej", 1, 5, S::npos);
+    test(S("dqtlg"), "bjsdgtlpkf", 1, 9, 2);
+    test(S("bthpg"), "bjgfmnlkio", 1, 10, 4);
+    test(S("dgsnq"), "lbhepotfsjdqigcnamkr", 1, 0, S::npos);
+    test(S("rmfhp"), "tebangckmpsrqdlfojhi", 1, 1, S::npos);
+    test(S("jfdam"), "joflqbdkhtegimscpanr", 1, 10, 1);
+    test(S("edapb"), "adpmcohetfbsrjinlqkg", 1, 19, 1);
+    test(S("brfsm"), "iacldqjpfnogbsrhmetk", 1, 20, 1);
+    test(S("ndrhl"), "", 2, 0, S::npos);
+    test(S("mrecp"), "otkgb", 2, 0, S::npos);
+    test(S("qlasf"), "cqsjl", 2, 1, S::npos);
+    test(S("smaqd"), "dpifl", 2, 2, 4);
+    test(S("hjeni"), "oapht", 2, 4, S::npos);
+    test(S("ocmfj"), "cifts", 2, 5, 3);
+    test(S("hmftq"), "nmsckbgalo", 2, 0, S::npos);
+    test(S("fklad"), "tpksqhamle", 2, 1, S::npos);
+    test(S("dirnm"), "tpdrchmkji", 2, 5, 2);
+    test(S("hrgdc"), "ijagfkblst", 2, 9, 2);
+    test(S("ifakg"), "kpocsignjb", 2, 10, 3);
+    test(S("ebrgd"), "pecqtkjsnbdrialgmohf", 2, 0, S::npos);
+    test(S("rcjml"), "aiortphfcmkjebgsndql", 2, 1, S::npos);
+    test(S("peqmt"), "sdbkeamglhipojqftrcn", 2, 10, 3);
+    test(S("frehn"), "ljqncehgmfktroapidbs", 2, 19, 2);
+    test(S("tqolf"), "rtcfodilamkbenjghqps", 2, 20, 2);
+    test(S("cjgao"), "", 4, 0, S::npos);
+    test(S("kjplq"), "mabns", 4, 0, S::npos);
+    test(S("herni"), "bdnrp", 4, 1, S::npos);
+    test(S("tadrb"), "scidp", 4, 2, S::npos);
+    test(S("pkfeo"), "agbjl", 4, 4, S::npos);
+    test(S("hoser"), "jfmpr", 4, 5, 4);
+    test(S("kgrsp"), "rbpefghsmj", 4, 0, S::npos);
+    test(S("pgejb"), "apsfntdoqc", 4, 1, S::npos);
+    test(S("thlnq"), "ndkjeisgcl", 4, 5, S::npos);
+    test(S("nbmit"), "rnfpqatdeo", 4, 9, 4);
+    test(S("jgmib"), "bntjlqrfik", 4, 10, 4);
+    test(S("ncrfj"), "kcrtmpolnaqejghsfdbi", 4, 0, S::npos);
+    test(S("ncsik"), "lobheanpkmqidsrtcfgj", 4, 1, S::npos);
+    test(S("sgbfh"), "athdkljcnreqbgpmisof", 4, 10, 4);
+    test(S("dktbn"), "qkdmjialrscpbhefgont", 4, 19, 4);
+    test(S("fthqm"), "dmasojntqleribkgfchp", 4, 20, 4);
+    test(S("klopi"), "", 5, 0, S::npos);
+    test(S("dajhn"), "psthd", 5, 0, S::npos);
+    test(S("jbgno"), "rpmjd", 5, 1, S::npos);
+    test(S("hkjae"), "dfsmk", 5, 2, S::npos);
+}
+
+template <class S>
+void test1()
+{
+    test(S("gbhqo"), "skqne", 5, 4, S::npos);
+    test(S("ktdor"), "kipnf", 5, 5, S::npos);
+    test(S("ldprn"), "hmrnqdgifl", 5, 0, S::npos);
+    test(S("egmjk"), "fsmjcdairn", 5, 1, S::npos);
+    test(S("armql"), "pcdgltbrfj", 5, 5, S::npos);
+    test(S("cdhjo"), "aekfctpirg", 5, 9, S::npos);
+    test(S("jcons"), "ledihrsgpf", 5, 10, S::npos);
+    test(S("cbrkp"), "mqcklahsbtirgopefndj", 5, 0, S::npos);
+    test(S("fhgna"), "kmlthaoqgecrnpdbjfis", 5, 1, S::npos);
+    test(S("ejfcd"), "sfhbamcdptojlkrenqgi", 5, 10, S::npos);
+    test(S("kqjhe"), "pbniofmcedrkhlstgaqj", 5, 19, S::npos);
+    test(S("pbdjl"), "mongjratcskbhqiepfdl", 5, 20, S::npos);
+    test(S("gajqn"), "", 6, 0, S::npos);
+    test(S("stedk"), "hrnat", 6, 0, S::npos);
+    test(S("tjkaf"), "gsqdt", 6, 1, S::npos);
+    test(S("dthpe"), "bspkd", 6, 2, S::npos);
+    test(S("klhde"), "ohcmb", 6, 4, S::npos);
+    test(S("bhlki"), "heatr", 6, 5, S::npos);
+    test(S("lqmoh"), "pmblckedfn", 6, 0, S::npos);
+    test(S("mtqin"), "aceqmsrbik", 6, 1, S::npos);
+    test(S("dpqbr"), "lmbtdehjrn", 6, 5, S::npos);
+    test(S("kdhmo"), "teqmcrlgib", 6, 9, S::npos);
+    test(S("jblqp"), "njolbmspac", 6, 10, S::npos);
+    test(S("qmjgl"), "pofnhidklamecrbqjgst", 6, 0, S::npos);
+    test(S("rothp"), "jbhckmtgrqnosafedpli", 6, 1, S::npos);
+    test(S("ghknq"), "dobntpmqklicsahgjerf", 6, 10, S::npos);
+    test(S("eopfi"), "tpdshainjkbfoemlrgcq", 6, 19, S::npos);
+    test(S("dsnmg"), "oldpfgeakrnitscbjmqh", 6, 20, S::npos);
+    test(S("jnkrfhotgl"), "", 0, 0, S::npos);
+    test(S("dltjfngbko"), "rqegt", 0, 0, S::npos);
+    test(S("bmjlpkiqde"), "dashm", 0, 1, 8);
+    test(S("skrflobnqm"), "jqirk", 0, 2, 8);
+    test(S("jkpldtshrm"), "rckeg", 0, 4, 1);
+    test(S("ghasdbnjqo"), "jscie", 0, 5, 3);
+    test(S("igrkhpbqjt"), "efsphndliq", 0, 0, S::npos);
+    test(S("ikthdgcamf"), "gdicosleja", 0, 1, 5);
+    test(S("pcofgeniam"), "qcpjibosfl", 0, 5, 0);
+    test(S("rlfjgesqhc"), "lrhmefnjcq", 0, 9, 0);
+    test(S("itphbqsker"), "dtablcrseo", 0, 10, 1);
+    test(S("skjafcirqm"), "apckjsftedbhgomrnilq", 0, 0, S::npos);
+    test(S("tcqomarsfd"), "pcbrgflehjtiadnsokqm", 0, 1, S::npos);
+    test(S("rocfeldqpk"), "nsiadegjklhobrmtqcpf", 0, 10, 4);
+    test(S("cfpegndlkt"), "cpmajdqnolikhgsbretf", 0, 19, 0);
+    test(S("fqbtnkeasj"), "jcflkntmgiqrphdosaeb", 0, 20, 0);
+    test(S("shbcqnmoar"), "", 1, 0, S::npos);
+    test(S("bdoshlmfin"), "ontrs", 1, 0, S::npos);
+    test(S("khfrebnsgq"), "pfkna", 1, 1, S::npos);
+    test(S("getcrsaoji"), "ekosa", 1, 2, 1);
+    test(S("fjiknedcpq"), "anqhk", 1, 4, 4);
+    test(S("tkejgnafrm"), "jekca", 1, 5, 1);
+    test(S("jnakolqrde"), "ikemsjgacf", 1, 0, S::npos);
+    test(S("lcjptsmgbe"), "arolgsjkhm", 1, 1, S::npos);
+    test(S("itfsmcjorl"), "oftkbldhre", 1, 5, 1);
+    test(S("omchkfrjea"), "gbkqdoeftl", 1, 9, 4);
+    test(S("cigfqkated"), "sqcflrgtim", 1, 10, 1);
+    test(S("tscenjikml"), "fmhbkislrjdpanogqcet", 1, 0, S::npos);
+    test(S("qcpaemsinf"), "rnioadktqlgpbcjsmhef", 1, 1, S::npos);
+    test(S("gltkojeipd"), "oakgtnldpsefihqmjcbr", 1, 10, 1);
+    test(S("qistfrgnmp"), "gbnaelosidmcjqktfhpr", 1, 19, 1);
+    test(S("bdnpfcqaem"), "akbripjhlosndcmqgfet", 1, 20, 1);
+    test(S("ectnhskflp"), "", 5, 0, S::npos);
+    test(S("fgtianblpq"), "pijag", 5, 0, S::npos);
+    test(S("mfeqklirnh"), "jrckd", 5, 1, S::npos);
+    test(S("astedncjhk"), "qcloh", 5, 2, 6);
+    test(S("fhlqgcajbr"), "thlmp", 5, 4, S::npos);
+    test(S("epfhocmdng"), "qidmo", 5, 5, 6);
+    test(S("apcnsibger"), "lnegpsjqrd", 5, 0, S::npos);
+    test(S("aqkocrbign"), "rjqdablmfs", 5, 1, 5);
+    test(S("ijsmdtqgce"), "enkgpbsjaq", 5, 5, 7);
+    test(S("clobgsrken"), "kdsgoaijfh", 5, 9, 5);
+    test(S("jbhcfposld"), "trfqgmckbe", 5, 10, S::npos);
+    test(S("oqnpblhide"), "igetsracjfkdnpoblhqm", 5, 0, S::npos);
+    test(S("lroeasctif"), "nqctfaogirshlekbdjpm", 5, 1, S::npos);
+    test(S("bpjlgmiedh"), "csehfgomljdqinbartkp", 5, 10, 5);
+    test(S("pamkeoidrj"), "qahoegcmplkfsjbdnitr", 5, 19, 5);
+    test(S("espogqbthk"), "dpteiajrqmsognhlfbkc", 5, 20, 5);
+    test(S("shoiedtcjb"), "", 9, 0, S::npos);
+    test(S("ebcinjgads"), "tqbnh", 9, 0, S::npos);
+    test(S("dqmregkcfl"), "akmle", 9, 1, S::npos);
+    test(S("ngcrieqajf"), "iqfkm", 9, 2, S::npos);
+    test(S("qosmilgnjb"), "tqjsr", 9, 4, S::npos);
+    test(S("ikabsjtdfl"), "jplqg", 9, 5, 9);
+    test(S("ersmicafdh"), "oilnrbcgtj", 9, 0, S::npos);
+    test(S("fdnplotmgh"), "morkglpesn", 9, 1, S::npos);
+    test(S("fdbicojerm"), "dmicerngat", 9, 5, 9);
+    test(S("mbtafndjcq"), "radgeskbtc", 9, 9, S::npos);
+    test(S("mlenkpfdtc"), "ljikprsmqo", 9, 10, S::npos);
+    test(S("ahlcifdqgs"), "trqihkcgsjamfdbolnpe", 9, 0, S::npos);
+    test(S("bgjemaltks"), "lqmthbsrekajgnofcipd", 9, 1, S::npos);
+    test(S("pdhslbqrfc"), "jtalmedribkgqsopcnfh", 9, 10, S::npos);
+    test(S("dirhtsnjkc"), "spqfoiclmtagejbndkrh", 9, 19, 9);
+    test(S("dlroktbcja"), "nmotklspigjrdhcfaebq", 9, 20, 9);
+    test(S("ncjpmaekbs"), "", 10, 0, S::npos);
+    test(S("hlbosgmrak"), "hpmsd", 10, 0, S::npos);
+    test(S("pqfhsgilen"), "qnpor", 10, 1, S::npos);
+    test(S("gqtjsbdckh"), "otdma", 10, 2, S::npos);
+    test(S("cfkqpjlegi"), "efhjg", 10, 4, S::npos);
+    test(S("beanrfodgj"), "odpte", 10, 5, S::npos);
+    test(S("adtkqpbjfi"), "bctdgfmolr", 10, 0, S::npos);
+    test(S("iomkfthagj"), "oaklidrbqg", 10, 1, S::npos);
+}
+
+template <class S>
+void test2()
+{
+    test(S("sdpcilonqj"), "dnjfsagktr", 10, 5, S::npos);
+    test(S("gtfbdkqeml"), "nejaktmiqg", 10, 9, S::npos);
+    test(S("bmeqgcdorj"), "pjqonlebsf", 10, 10, S::npos);
+    test(S("etqlcanmob"), "dshmnbtolcjepgaikfqr", 10, 0, S::npos);
+    test(S("roqmkbdtia"), "iogfhpabtjkqlrnemcds", 10, 1, S::npos);
+    test(S("kadsithljf"), "ngridfabjsecpqltkmoh", 10, 10, S::npos);
+    test(S("sgtkpbfdmh"), "athmknplcgofrqejsdib", 10, 19, S::npos);
+    test(S("qgmetnabkl"), "ldobhmqcafnjtkeisgrp", 10, 20, S::npos);
+    test(S("cqjohampgd"), "", 11, 0, S::npos);
+    test(S("hobitmpsan"), "aocjb", 11, 0, S::npos);
+    test(S("tjehkpsalm"), "jbrnk", 11, 1, S::npos);
+    test(S("ngfbojitcl"), "tqedg", 11, 2, S::npos);
+    test(S("rcfkdbhgjo"), "nqskp", 11, 4, S::npos);
+    test(S("qghptonrea"), "eaqkl", 11, 5, S::npos);
+    test(S("hnprfgqjdl"), "reaoicljqm", 11, 0, S::npos);
+    test(S("hlmgabenti"), "lsftgajqpm", 11, 1, S::npos);
+    test(S("ofcjanmrbs"), "rlpfogmits", 11, 5, S::npos);
+    test(S("jqedtkornm"), "shkncmiaqj", 11, 9, S::npos);
+    test(S("rfedlasjmg"), "fpnatrhqgs", 11, 10, S::npos);
+    test(S("talpqjsgkm"), "sjclemqhnpdbgikarfot", 11, 0, S::npos);
+    test(S("lrkcbtqpie"), "otcmedjikgsfnqbrhpla", 11, 1, S::npos);
+    test(S("cipogdskjf"), "bonsaefdqiprkhlgtjcm", 11, 10, S::npos);
+    test(S("nqedcojahi"), "egpscmahijlfnkrodqtb", 11, 19, S::npos);
+    test(S("hefnrkmctj"), "kmqbfepjthgilscrndoa", 11, 20, S::npos);
+    test(S("atqirnmekfjolhpdsgcb"), "", 0, 0, S::npos);
+    test(S("echfkmlpribjnqsaogtd"), "prboq", 0, 0, S::npos);
+    test(S("qnhiftdgcleajbpkrosm"), "fjcqh", 0, 1, 4);
+    test(S("chamfknorbedjitgslpq"), "fmosa", 0, 2, 3);
+    test(S("njhqpibfmtlkaecdrgso"), "qdbok", 0, 4, 3);
+    test(S("ebnghfsqkprmdcljoiat"), "amslg", 0, 5, 3);
+    test(S("letjomsgihfrpqbkancd"), "smpltjneqb", 0, 0, S::npos);
+    test(S("nblgoipcrqeaktshjdmf"), "flitskrnge", 0, 1, 19);
+    test(S("cehkbngtjoiflqapsmrd"), "pgqihmlbef", 0, 5, 2);
+    test(S("mignapfoklbhcqjetdrs"), "cfpdqjtgsb", 0, 9, 2);
+    test(S("ceatbhlsqjgpnokfrmdi"), "htpsiaflom", 0, 10, 2);
+    test(S("ocihkjgrdelpfnmastqb"), "kpjfiaceghsrdtlbnomq", 0, 0, S::npos);
+    test(S("noelgschdtbrjfmiqkap"), "qhtbomidljgafneksprc", 0, 1, 16);
+    test(S("dkclqfombepritjnghas"), "nhtjobkcefldimpsaqgr", 0, 10, 1);
+    test(S("miklnresdgbhqcojftap"), "prabcjfqnoeskilmtgdh", 0, 19, 0);
+    test(S("htbcigojaqmdkfrnlsep"), "dtrgmchilkasqoebfpjn", 0, 20, 0);
+    test(S("febhmqtjanokscdirpgl"), "", 1, 0, S::npos);
+    test(S("loakbsqjpcrdhftniegm"), "sqome", 1, 0, S::npos);
+    test(S("reagphsqflbitdcjmkno"), "smfte", 1, 1, 6);
+    test(S("jitlfrqemsdhkopncabg"), "ciboh", 1, 2, 1);
+    test(S("mhtaepscdnrjqgbkifol"), "haois", 1, 4, 1);
+    test(S("tocesrfmnglpbjihqadk"), "abfki", 1, 5, 6);
+    test(S("lpfmctjrhdagneskbqoi"), "frdkocntmq", 1, 0, S::npos);
+    test(S("lsmqaepkdhncirbtjfgo"), "oasbpedlnr", 1, 1, 19);
+    test(S("epoiqmtldrabnkjhcfsg"), "kltqmhgand", 1, 5, 4);
+    test(S("emgasrilpknqojhtbdcf"), "gdtfjchpmr", 1, 9, 1);
+    test(S("hnfiagdpcklrjetqbsom"), "ponmcqblet", 1, 10, 1);
+    test(S("nsdfebgajhmtricpoklq"), "sgphqdnofeiklatbcmjr", 1, 0, S::npos);
+    test(S("atjgfsdlpobmeiqhncrk"), "ljqprsmigtfoneadckbh", 1, 1, 7);
+    test(S("sitodfgnrejlahcbmqkp"), "ligeojhafnkmrcsqtbdp", 1, 10, 1);
+    test(S("fraghmbiceknltjpqosd"), "lsimqfnjarbopedkhcgt", 1, 19, 1);
+    test(S("pmafenlhqtdbkirjsogc"), "abedmfjlghniorcqptks", 1, 20, 1);
+    test(S("pihgmoeqtnakrjslcbfd"), "", 10, 0, S::npos);
+    test(S("gjdkeprctqblnhiafsom"), "hqtoa", 10, 0, S::npos);
+    test(S("mkpnblfdsahrcqijteog"), "cahif", 10, 1, 12);
+    test(S("gckarqnelodfjhmbptis"), "kehis", 10, 2, S::npos);
+    test(S("gqpskidtbclomahnrjfe"), "kdlmh", 10, 4, 10);
+    test(S("pkldjsqrfgitbhmaecno"), "paeql", 10, 5, 15);
+    test(S("aftsijrbeklnmcdqhgop"), "aghoqiefnb", 10, 0, S::npos);
+    test(S("mtlgdrhafjkbiepqnsoc"), "jrbqaikpdo", 10, 1, S::npos);
+    test(S("pqgirnaefthokdmbsclj"), "smjonaeqcl", 10, 5, 11);
+    test(S("kpdbgjmtherlsfcqoina"), "eqbdrkcfah", 10, 9, 10);
+    test(S("jrlbothiknqmdgcfasep"), "kapmsienhf", 10, 10, 11);
+    test(S("mjogldqferckabinptsh"), "jpqotrlenfcsbhkaimdg", 10, 0, S::npos);
+    test(S("apoklnefbhmgqcdrisjt"), "jlbmhnfgtcqprikeados", 10, 1, 18);
+    test(S("ifeopcnrjbhkdgatmqls"), "stgbhfmdaljnpqoicker", 10, 10, 10);
+    test(S("ckqhaiesmjdnrgolbtpf"), "oihcetflbjagdsrkmqpn", 10, 19, 10);
+    test(S("bnlgapfimcoterskqdjh"), "adtclebmnpjsrqfkigoh", 10, 20, 10);
+    test(S("kgdlrobpmjcthqsafeni"), "", 19, 0, S::npos);
+    test(S("dfkechomjapgnslbtqir"), "beafg", 19, 0, S::npos);
+    test(S("rloadknfbqtgmhcsipje"), "iclat", 19, 1, S::npos);
+    test(S("mgjhkolrnadqbpetcifs"), "rkhnf", 19, 2, S::npos);
+    test(S("cmlfakiojdrgtbsphqen"), "clshq", 19, 4, S::npos);
+    test(S("kghbfipeomsntdalrqjc"), "dtcoj", 19, 5, 19);
+    test(S("eldiqckrnmtasbghjfpo"), "rqosnjmfth", 19, 0, S::npos);
+    test(S("abqjcfedgotihlnspkrm"), "siatdfqglh", 19, 1, S::npos);
+    test(S("qfbadrtjsimkolcenhpg"), "mrlshtpgjq", 19, 5, S::npos);
+    test(S("abseghclkjqifmtodrnp"), "adlcskgqjt", 19, 9, S::npos);
+    test(S("ibmsnlrjefhtdokacqpg"), "drshcjknaf", 19, 10, S::npos);
+    test(S("mrkfciqjebaponsthldg"), "etsaqroinghpkjdlfcbm", 19, 0, S::npos);
+    test(S("mjkticdeoqshpalrfbgn"), "sgepdnkqliambtrocfhj", 19, 1, S::npos);
+    test(S("rqnoclbdejgiphtfsakm"), "nlmcjaqgbsortfdihkpe", 19, 10, 19);
+    test(S("plkqbhmtfaeodjcrsing"), "racfnpmosldibqkghjet", 19, 19, 19);
+    test(S("oegalhmstjrfickpbndq"), "fjhdsctkqeiolagrnmbp", 19, 20, 19);
+    test(S("rdtgjcaohpblniekmsfq"), "", 20, 0, S::npos);
+    test(S("ofkqbnjetrmsaidphglc"), "ejanp", 20, 0, S::npos);
+    test(S("grkpahljcftesdmonqib"), "odife", 20, 1, S::npos);
+    test(S("jimlgbhfqkteospardcn"), "okaqd", 20, 2, S::npos);
+    test(S("gftenihpmslrjkqadcob"), "lcdbi", 20, 4, S::npos);
+    test(S("bmhldogtckrfsanijepq"), "fsqbj", 20, 5, S::npos);
+    test(S("nfqkrpjdesabgtlcmoih"), "bigdomnplq", 20, 0, S::npos);
+    test(S("focalnrpiqmdkstehbjg"), "apiblotgcd", 20, 1, S::npos);
+    test(S("rhqdspkmebiflcotnjga"), "acfhdenops", 20, 5, S::npos);
+    test(S("rahdtmsckfboqlpniegj"), "jopdeamcrk", 20, 9, S::npos);
+    test(S("fbkeiopclstmdqranjhg"), "trqncbkgmh", 20, 10, S::npos);
+    test(S("lifhpdgmbconstjeqark"), "tomglrkencbsfjqpihda", 20, 0, S::npos);
+}
+
+template <class S>
+void test3()
+{
+    test(S("pboqganrhedjmltsicfk"), "gbkhdnpoietfcmrslajq", 20, 1, S::npos);
+    test(S("klchabsimetjnqgorfpd"), "rtfnmbsglkjaichoqedp", 20, 10, S::npos);
+    test(S("sirfgmjqhctndbklaepo"), "ohkmdpfqbsacrtjnlgei", 20, 19, S::npos);
+    test(S("rlbdsiceaonqjtfpghkm"), "dlbrteoisgphmkncajfq", 20, 20, S::npos);
+    test(S("ecgdanriptblhjfqskom"), "", 21, 0, S::npos);
+    test(S("fdmiarlpgcskbhoteqjn"), "sjrlo", 21, 0, S::npos);
+    test(S("rlbstjqopignecmfadkh"), "qjpor", 21, 1, S::npos);
+    test(S("grjpqmbshektdolcafni"), "odhfn", 21, 2, S::npos);
+    test(S("sakfcohtqnibprjmlged"), "qtfin", 21, 4, S::npos);
+    test(S("mjtdglasihqpocebrfkn"), "hpqfo", 21, 5, S::npos);
+    test(S("okaplfrntghqbmeicsdj"), "fabmertkos", 21, 0, S::npos);
+    test(S("sahngemrtcjidqbklfpo"), "brqtgkmaej", 21, 1, S::npos);
+    test(S("dlmsipcnekhbgoaftqjr"), "nfrdeihsgl", 21, 5, S::npos);
+    test(S("ahegrmqnoiklpfsdbcjt"), "hlfrosekpi", 21, 9, S::npos);
+    test(S("hdsjbnmlegtkqripacof"), "atgbkrjdsm", 21, 10, S::npos);
+    test(S("pcnedrfjihqbalkgtoms"), "blnrptjgqmaifsdkhoec", 21, 0, S::npos);
+    test(S("qjidealmtpskrbfhocng"), "ctpmdahebfqjgknloris", 21, 1, S::npos);
+    test(S("qeindtagmokpfhsclrbj"), "apnkeqthrmlbfodiscgj", 21, 10, S::npos);
+    test(S("kpfegbjhsrnodltqciam"), "jdgictpframeoqlsbknh", 21, 19, S::npos);
+    test(S("hnbrcplsjfgiktoedmaq"), "qprlsfojamgndekthibc", 21, 20, S::npos);
+}
+
+int main()
+{
+    {
+    typedef std::experimental::string_view S;
+    test0<S>();
+    test1<S>();
+    test2<S>();
+    test3<S>();
+    }
+
+#if _LIBCPP_STD_VER > 11
+    {
+    typedef std::experimental::basic_string_view<char, constexpr_char_traits<char>> SV;
+    constexpr SV  sv1;
+    constexpr SV  sv2 { "abcde", 5 };
+
+    static_assert (sv1.find_first_of( "",      0, 0) == SV::npos, "" );
+    static_assert (sv1.find_first_of( "irkhs", 0, 5) == SV::npos, "" );
+    static_assert (sv2.find_first_of( "",      0, 0) == SV::npos, "" );
+    static_assert (sv2.find_first_of( "gfsrt", 0, 5) == SV::npos, "" );
+    static_assert (sv2.find_first_of( "lecar", 0, 5) == 0, "" );
+    }
+#endif
+}

Added: libcxx/trunk/test/std/experimental/string.view/string.view.find/find_first_of_string_view_size.pass.cpp
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/test/std/experimental/string.view/string.view.find/find_first_of_string_view_size.pass.cpp?rev=224658&view=auto
==============================================================================
--- libcxx/trunk/test/std/experimental/string.view/string.view.find/find_first_of_string_view_size.pass.cpp (added)
+++ libcxx/trunk/test/std/experimental/string.view/string.view.find/find_first_of_string_view_size.pass.cpp Fri Dec 19 19:40:03 2014
@@ -0,0 +1,148 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <string>
+
+// size_type find_first_of(const basic_string_view& str, size_type pos = 0) const;
+
+#include <experimental/string_view>
+#include <cassert>
+
+template <class S>
+void
+test(const S& s, const S& str, typename S::size_type pos, typename S::size_type x)
+{
+    assert(s.find_first_of(str, pos) == x);
+    if (x != S::npos)
+        assert(pos <= x && x < s.size());
+}
+
+template <class S>
+void
+test(const S& s, const S& str, typename S::size_type x)
+{
+    assert(s.find_first_of(str) == x);
+    if (x != S::npos)
+        assert(x < s.size());
+}
+
+template <class S>
+void test0()
+{
+    test(S(""), S(""), 0, S::npos);
+    test(S(""), S("laenf"), 0, S::npos);
+    test(S(""), S("pqlnkmbdjo"), 0, S::npos);
+    test(S(""), S("qkamfogpnljdcshbreti"), 0, S::npos);
+    test(S(""), S(""), 1, S::npos);
+    test(S(""), S("bjaht"), 1, S::npos);
+    test(S(""), S("hjlcmgpket"), 1, S::npos);
+    test(S(""), S("htaobedqikfplcgjsmrn"), 1, S::npos);
+    test(S("fodgq"), S(""), 0, S::npos);
+    test(S("qanej"), S("dfkap"), 0, 1);
+    test(S("clbao"), S("ihqrfebgad"), 0, 2);
+    test(S("mekdn"), S("ngtjfcalbseiqrphmkdo"), 0, 0);
+    test(S("srdfq"), S(""), 1, S::npos);
+    test(S("oemth"), S("ikcrq"), 1, S::npos);
+    test(S("cdaih"), S("dmajblfhsg"), 1, 1);
+    test(S("qohtk"), S("oqftjhdmkgsblacenirp"), 1, 1);
+    test(S("cshmd"), S(""), 2, S::npos);
+    test(S("lhcdo"), S("oebqi"), 2, 4);
+    test(S("qnsoh"), S("kojhpmbsfe"), 2, 2);
+    test(S("pkrof"), S("acbsjqogpltdkhinfrem"), 2, 2);
+    test(S("fmtsp"), S(""), 4, S::npos);
+    test(S("khbpm"), S("aobjd"), 4, S::npos);
+    test(S("pbsji"), S("pcbahntsje"), 4, S::npos);
+    test(S("mprdj"), S("fhepcrntkoagbmldqijs"), 4, 4);
+    test(S("eqmpa"), S(""), 5, S::npos);
+    test(S("omigs"), S("kocgb"), 5, S::npos);
+    test(S("onmje"), S("fbslrjiqkm"), 5, S::npos);
+    test(S("oqmrj"), S("jeidpcmalhfnqbgtrsko"), 5, S::npos);
+    test(S("schfa"), S(""), 6, S::npos);
+    test(S("igdsc"), S("qngpd"), 6, S::npos);
+    test(S("brqgo"), S("rodhqklgmb"), 6, S::npos);
+    test(S("tnrph"), S("thdjgafrlbkoiqcspmne"), 6, S::npos);
+    test(S("hcjitbfapl"), S(""), 0, S::npos);
+    test(S("daiprenocl"), S("ashjd"), 0, 0);
+    test(S("litpcfdghe"), S("mgojkldsqh"), 0, 0);
+    test(S("aidjksrolc"), S("imqnaghkfrdtlopbjesc"), 0, 0);
+    test(S("qpghtfbaji"), S(""), 1, S::npos);
+    test(S("gfshlcmdjr"), S("nadkh"), 1, 3);
+    test(S("nkodajteqp"), S("ofdrqmkebl"), 1, 1);
+    test(S("gbmetiprqd"), S("bdfjqgatlksriohemnpc"), 1, 1);
+    test(S("crnklpmegd"), S(""), 5, S::npos);
+    test(S("jsbtafedoc"), S("prqgn"), 5, S::npos);
+    test(S("qnmodrtkeb"), S("pejafmnokr"), 5, 5);
+    test(S("cpebqsfmnj"), S("odnqkgijrhabfmcestlp"), 5, 5);
+    test(S("lmofqdhpki"), S(""), 9, S::npos);
+    test(S("hnefkqimca"), S("rtjpa"), 9, 9);
+    test(S("drtasbgmfp"), S("ktsrmnqagd"), 9, S::npos);
+    test(S("lsaijeqhtr"), S("rtdhgcisbnmoaqkfpjle"), 9, 9);
+    test(S("elgofjmbrq"), S(""), 10, S::npos);
+    test(S("mjqdgalkpc"), S("dplqa"), 10, S::npos);
+    test(S("kthqnfcerm"), S("dkacjoptns"), 10, S::npos);
+    test(S("dfsjhanorc"), S("hqfimtrgnbekpdcsjalo"), 10, S::npos);
+    test(S("eqsgalomhb"), S(""), 11, S::npos);
+    test(S("akiteljmoh"), S("lofbc"), 11, S::npos);
+    test(S("hlbdfreqjo"), S("astoegbfpn"), 11, S::npos);
+    test(S("taqobhlerg"), S("pdgreqomsncafklhtibj"), 11, S::npos);
+    test(S("snafbdlghrjkpqtoceim"), S(""), 0, S::npos);
+    test(S("aemtbrgcklhndjisfpoq"), S("lbtqd"), 0, 3);
+    test(S("pnracgfkjdiholtbqsem"), S("tboimldpjh"), 0, 0);
+    test(S("dicfltehbsgrmojnpkaq"), S("slcerthdaiqjfnobgkpm"), 0, 0);
+    test(S("jlnkraeodhcspfgbqitm"), S(""), 1, S::npos);
+    test(S("lhosrngtmfjikbqpcade"), S("aqibs"), 1, 3);
+    test(S("rbtaqjhgkneisldpmfoc"), S("gtfblmqinc"), 1, 1);
+    test(S("gpifsqlrdkbonjtmheca"), S("mkqpbtdalgniorhfescj"), 1, 1);
+    test(S("hdpkobnsalmcfijregtq"), S(""), 10, S::npos);
+    test(S("jtlshdgqaiprkbcoenfm"), S("pblas"), 10, 10);
+    test(S("fkdrbqltsgmcoiphneaj"), S("arosdhcfme"), 10, 10);
+    test(S("crsplifgtqedjohnabmk"), S("blkhjeogicatqfnpdmsr"), 10, 10);
+    test(S("niptglfbosehkamrdqcj"), S(""), 19, S::npos);
+    test(S("copqdhstbingamjfkler"), S("djkqc"), 19, S::npos);
+    test(S("mrtaefilpdsgocnhqbjk"), S("lgokshjtpb"), 19, 19);
+    test(S("kojatdhlcmigpbfrqnes"), S("bqjhtkfepimcnsgrlado"), 19, 19);
+    test(S("eaintpchlqsbdgrkjofm"), S(""), 20, S::npos);
+    test(S("gjnhidfsepkrtaqbmclo"), S("nocfa"), 20, S::npos);
+    test(S("spocfaktqdbiejlhngmr"), S("bgtajmiedc"), 20, S::npos);
+    test(S("rphmlekgfscndtaobiqj"), S("lsckfnqgdahejiopbtmr"), 20, S::npos);
+    test(S("liatsqdoegkmfcnbhrpj"), S(""), 21, S::npos);
+    test(S("binjagtfldkrspcomqeh"), S("gfsrt"), 21, S::npos);
+    test(S("latkmisecnorjbfhqpdg"), S("pfsocbhjtm"), 21, S::npos);
+    test(S("lecfratdjkhnsmqpoigb"), S("tpflmdnoicjgkberhqsa"), 21, S::npos);
+}
+
+template <class S>
+void test1()
+{
+    test(S(""), S(""), S::npos);
+    test(S(""), S("laenf"), S::npos);
+    test(S(""), S("pqlnkmbdjo"), S::npos);
+    test(S(""), S("qkamfogpnljdcshbreti"), S::npos);
+    test(S("nhmko"), S(""), S::npos);
+    test(S("lahfb"), S("irkhs"), 2);
+    test(S("gmfhd"), S("kantesmpgj"), 0);
+    test(S("odaft"), S("oknlrstdpiqmjbaghcfe"), 0);
+    test(S("eolhfgpjqk"), S(""), S::npos);
+    test(S("nbatdlmekr"), S("bnrpe"), 0);
+    test(S("jdmciepkaq"), S("jtdaefblso"), 0);
+    test(S("hkbgspoflt"), S("oselktgbcapndfjihrmq"), 0);
+    test(S("gprdcokbnjhlsfmtieqa"), S(""), S::npos);
+    test(S("qjghlnftcaismkropdeb"), S("bjaht"), 1);
+    test(S("pnalfrdtkqcmojiesbhg"), S("hjlcmgpket"), 0);
+    test(S("pniotcfrhqsmgdkjbael"), S("htaobedqikfplcgjsmrn"), 0);
+}
+
+int main()
+{
+    {
+    typedef std::experimental::string_view S;
+    test0<S>();
+    test1<S>();
+    }
+}

Added: libcxx/trunk/test/std/experimental/string.view/string.view.find/find_last_not_of_char_size.pass.cpp
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/test/std/experimental/string.view/string.view.find/find_last_not_of_char_size.pass.cpp?rev=224658&view=auto
==============================================================================
--- libcxx/trunk/test/std/experimental/string.view/string.view.find/find_last_not_of_char_size.pass.cpp (added)
+++ libcxx/trunk/test/std/experimental/string.view/string.view.find/find_last_not_of_char_size.pass.cpp Fri Dec 19 19:40:03 2014
@@ -0,0 +1,82 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <string_view>
+
+// const size_type find_last_not_of(charT c, size_type pos = npos) const;
+
+#include <experimental/string_view>
+#include <cassert>
+
+#include "constexpr_char_traits.hpp"
+
+template <class S>
+void
+test(const S& s, typename S::value_type c, typename S::size_type pos,
+     typename S::size_type x)
+{
+    assert(s.find_last_not_of(c, pos) == x);
+    if (x != S::npos)
+        assert(x <= pos && x < s.size());
+}
+
+template <class S>
+void
+test(const S& s, typename S::value_type c, typename S::size_type x)
+{
+    assert(s.find_last_not_of(c) == x);
+    if (x != S::npos)
+        assert(x < s.size());
+}
+
+int main()
+{
+    {
+    typedef std::experimental::string_view S;
+    test(S(""), 'i', 0, S::npos);
+    test(S(""), 'i', 1, S::npos);
+    test(S("kitcj"), 'i', 0, 0);
+    test(S("qkamf"), 'i', 1, 1);
+    test(S("nhmko"), 'i', 2, 2);
+    test(S("tpsaf"), 'i', 4, 4);
+    test(S("lahfb"), 'i', 5, 4);
+    test(S("irkhs"), 'i', 6, 4);
+    test(S("gmfhdaipsr"), 'i', 0, 0);
+    test(S("kantesmpgj"), 'i', 1, 1);
+    test(S("odaftiegpm"), 'i', 5, 4);
+    test(S("oknlrstdpi"), 'i', 9, 8);
+    test(S("eolhfgpjqk"), 'i', 10, 9);
+    test(S("pcdrofikas"), 'i', 11, 9);
+    test(S("nbatdlmekrgcfqsophij"), 'i', 0, 0);
+    test(S("bnrpehidofmqtcksjgla"), 'i', 1, 1);
+    test(S("jdmciepkaqgotsrfnhlb"), 'i', 10, 10);
+    test(S("jtdaefblsokrmhpgcnqi"), 'i', 19, 18);
+    test(S("hkbgspofltajcnedqmri"), 'i', 20, 18);
+    test(S("oselktgbcapndfjihrmq"), 'i', 21, 19);
+
+    test(S(""), 'i', S::npos);
+    test(S("csope"), 'i', 4);
+    test(S("gfsmthlkon"), 'i', 9);
+    test(S("laenfsbridchgotmkqpj"), 'i', 19);
+    }
+
+#if _LIBCPP_STD_VER > 11
+    {
+    typedef std::experimental::basic_string_view<char, constexpr_char_traits<char>> SV;
+    constexpr SV  sv1;
+    constexpr SV  sv2 { "abcde", 5 };
+
+    static_assert (sv1.find_last_not_of( 'i', 0 ) == SV::npos, "" );
+    static_assert (sv1.find_last_not_of( 'i', 1 ) == SV::npos, "" );
+    static_assert (sv2.find_last_not_of( 'a', 0 ) == SV::npos, "" );
+    static_assert (sv2.find_last_not_of( 'a', 1 ) == 1, "" );
+    static_assert (sv2.find_last_not_of( 'e', 5 ) == 3, "" );
+    }
+#endif
+}

Added: libcxx/trunk/test/std/experimental/string.view/string.view.find/find_last_not_of_pointer_size.pass.cpp
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/test/std/experimental/string.view/string.view.find/find_last_not_of_pointer_size.pass.cpp?rev=224658&view=auto
==============================================================================
--- libcxx/trunk/test/std/experimental/string.view/string.view.find/find_last_not_of_pointer_size.pass.cpp (added)
+++ libcxx/trunk/test/std/experimental/string.view/string.view.find/find_last_not_of_pointer_size.pass.cpp Fri Dec 19 19:40:03 2014
@@ -0,0 +1,165 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <string_view>
+
+// constexpr size_type find_last_not_of(const charT* s, size_type pos = npos) const;
+
+#include <experimental/string_view>
+#include <cassert>
+
+#include "constexpr_char_traits.hpp"
+
+template <class S>
+void
+test(const S& s, const typename S::value_type* str, typename S::size_type pos,
+     typename S::size_type x)
+{
+    assert(s.find_last_not_of(str, pos) == x);
+    if (x != S::npos)
+        assert(x <= pos && x < s.size());
+}
+
+template <class S>
+void
+test(const S& s, const typename S::value_type* str, typename S::size_type x)
+{
+    assert(s.find_last_not_of(str) == x);
+    if (x != S::npos)
+        assert(x < s.size());
+}
+
+template <class S>
+void test0()
+{
+    test(S(""), "", 0, S::npos);
+    test(S(""), "laenf", 0, S::npos);
+    test(S(""), "pqlnkmbdjo", 0, S::npos);
+    test(S(""), "qkamfogpnljdcshbreti", 0, S::npos);
+    test(S(""), "", 1, S::npos);
+    test(S(""), "bjaht", 1, S::npos);
+    test(S(""), "hjlcmgpket", 1, S::npos);
+    test(S(""), "htaobedqikfplcgjsmrn", 1, S::npos);
+    test(S("fodgq"), "", 0, 0);
+    test(S("qanej"), "dfkap", 0, 0);
+    test(S("clbao"), "ihqrfebgad", 0, 0);
+    test(S("mekdn"), "ngtjfcalbseiqrphmkdo", 0, S::npos);
+    test(S("srdfq"), "", 1, 1);
+    test(S("oemth"), "ikcrq", 1, 1);
+    test(S("cdaih"), "dmajblfhsg", 1, 0);
+    test(S("qohtk"), "oqftjhdmkgsblacenirp", 1, S::npos);
+    test(S("cshmd"), "", 2, 2);
+    test(S("lhcdo"), "oebqi", 2, 2);
+    test(S("qnsoh"), "kojhpmbsfe", 2, 1);
+    test(S("pkrof"), "acbsjqogpltdkhinfrem", 2, S::npos);
+    test(S("fmtsp"), "", 4, 4);
+    test(S("khbpm"), "aobjd", 4, 4);
+    test(S("pbsji"), "pcbahntsje", 4, 4);
+    test(S("mprdj"), "fhepcrntkoagbmldqijs", 4, S::npos);
+    test(S("eqmpa"), "", 5, 4);
+    test(S("omigs"), "kocgb", 5, 4);
+    test(S("onmje"), "fbslrjiqkm", 5, 4);
+    test(S("oqmrj"), "jeidpcmalhfnqbgtrsko", 5, S::npos);
+    test(S("schfa"), "", 6, 4);
+    test(S("igdsc"), "qngpd", 6, 4);
+    test(S("brqgo"), "rodhqklgmb", 6, S::npos);
+    test(S("tnrph"), "thdjgafrlbkoiqcspmne", 6, S::npos);
+    test(S("hcjitbfapl"), "", 0, 0);
+    test(S("daiprenocl"), "ashjd", 0, S::npos);
+    test(S("litpcfdghe"), "mgojkldsqh", 0, S::npos);
+    test(S("aidjksrolc"), "imqnaghkfrdtlopbjesc", 0, S::npos);
+    test(S("qpghtfbaji"), "", 1, 1);
+    test(S("gfshlcmdjr"), "nadkh", 1, 1);
+    test(S("nkodajteqp"), "ofdrqmkebl", 1, 0);
+    test(S("gbmetiprqd"), "bdfjqgatlksriohemnpc", 1, S::npos);
+    test(S("crnklpmegd"), "", 5, 5);
+    test(S("jsbtafedoc"), "prqgn", 5, 5);
+    test(S("qnmodrtkeb"), "pejafmnokr", 5, 4);
+    test(S("cpebqsfmnj"), "odnqkgijrhabfmcestlp", 5, S::npos);
+    test(S("lmofqdhpki"), "", 9, 9);
+    test(S("hnefkqimca"), "rtjpa", 9, 8);
+    test(S("drtasbgmfp"), "ktsrmnqagd", 9, 9);
+    test(S("lsaijeqhtr"), "rtdhgcisbnmoaqkfpjle", 9, S::npos);
+    test(S("elgofjmbrq"), "", 10, 9);
+    test(S("mjqdgalkpc"), "dplqa", 10, 9);
+    test(S("kthqnfcerm"), "dkacjoptns", 10, 9);
+    test(S("dfsjhanorc"), "hqfimtrgnbekpdcsjalo", 10, S::npos);
+    test(S("eqsgalomhb"), "", 11, 9);
+    test(S("akiteljmoh"), "lofbc", 11, 9);
+    test(S("hlbdfreqjo"), "astoegbfpn", 11, 8);
+    test(S("taqobhlerg"), "pdgreqomsncafklhtibj", 11, S::npos);
+    test(S("snafbdlghrjkpqtoceim"), "", 0, 0);
+    test(S("aemtbrgcklhndjisfpoq"), "lbtqd", 0, 0);
+    test(S("pnracgfkjdiholtbqsem"), "tboimldpjh", 0, S::npos);
+    test(S("dicfltehbsgrmojnpkaq"), "slcerthdaiqjfnobgkpm", 0, S::npos);
+    test(S("jlnkraeodhcspfgbqitm"), "", 1, 1);
+    test(S("lhosrngtmfjikbqpcade"), "aqibs", 1, 1);
+    test(S("rbtaqjhgkneisldpmfoc"), "gtfblmqinc", 1, 0);
+    test(S("gpifsqlrdkbonjtmheca"), "mkqpbtdalgniorhfescj", 1, S::npos);
+    test(S("hdpkobnsalmcfijregtq"), "", 10, 10);
+    test(S("jtlshdgqaiprkbcoenfm"), "pblas", 10, 9);
+    test(S("fkdrbqltsgmcoiphneaj"), "arosdhcfme", 10, 9);
+    test(S("crsplifgtqedjohnabmk"), "blkhjeogicatqfnpdmsr", 10, S::npos);
+    test(S("niptglfbosehkamrdqcj"), "", 19, 19);
+    test(S("copqdhstbingamjfkler"), "djkqc", 19, 19);
+    test(S("mrtaefilpdsgocnhqbjk"), "lgokshjtpb", 19, 16);
+    test(S("kojatdhlcmigpbfrqnes"), "bqjhtkfepimcnsgrlado", 19, S::npos);
+    test(S("eaintpchlqsbdgrkjofm"), "", 20, 19);
+    test(S("gjnhidfsepkrtaqbmclo"), "nocfa", 20, 18);
+    test(S("spocfaktqdbiejlhngmr"), "bgtajmiedc", 20, 19);
+    test(S("rphmlekgfscndtaobiqj"), "lsckfnqgdahejiopbtmr", 20, S::npos);
+    test(S("liatsqdoegkmfcnbhrpj"), "", 21, 19);
+    test(S("binjagtfldkrspcomqeh"), "gfsrt", 21, 19);
+    test(S("latkmisecnorjbfhqpdg"), "pfsocbhjtm", 21, 19);
+    test(S("lecfratdjkhnsmqpoigb"), "tpflmdnoicjgkberhqsa", 21, S::npos);
+}
+
+template <class S>
+void test1()
+{
+    test(S(""), "", S::npos);
+    test(S(""), "laenf", S::npos);
+    test(S(""), "pqlnkmbdjo", S::npos);
+    test(S(""), "qkamfogpnljdcshbreti", S::npos);
+    test(S("nhmko"), "", 4);
+    test(S("lahfb"), "irkhs", 4);
+    test(S("gmfhd"), "kantesmpgj", 4);
+    test(S("odaft"), "oknlrstdpiqmjbaghcfe", S::npos);
+    test(S("eolhfgpjqk"), "", 9);
+    test(S("nbatdlmekr"), "bnrpe", 8);
+    test(S("jdmciepkaq"), "jtdaefblso", 9);
+    test(S("hkbgspoflt"), "oselktgbcapndfjihrmq", S::npos);
+    test(S("gprdcokbnjhlsfmtieqa"), "", 19);
+    test(S("qjghlnftcaismkropdeb"), "bjaht", 18);
+    test(S("pnalfrdtkqcmojiesbhg"), "hjlcmgpket", 17);
+    test(S("pniotcfrhqsmgdkjbael"), "htaobedqikfplcgjsmrn", S::npos);
+}
+
+int main()
+{
+    {
+    typedef std::experimental::string_view S;
+    test0<S>();
+    test1<S>();
+    }
+
+#if _LIBCPP_STD_VER > 11
+    {
+    typedef std::experimental::basic_string_view<char, constexpr_char_traits<char>> SV;
+    constexpr SV  sv1;
+    constexpr SV  sv2 { "abcde", 5 };
+
+    static_assert (sv1.find_last_not_of( "",      0) == SV::npos, "" );
+    static_assert (sv1.find_last_not_of( "irkhs", 5) == SV::npos, "" );
+    static_assert (sv2.find_last_not_of( "",      0) == 0, "" );
+    static_assert (sv2.find_last_not_of( "gfsrt", 5) == 4, "" );
+    static_assert (sv2.find_last_not_of( "lecar", 5) == 3, "" );
+    }
+#endif
+}

Added: libcxx/trunk/test/std/experimental/string.view/string.view.find/find_last_not_of_pointer_size_size.pass.cpp
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/test/std/experimental/string.view/string.view.find/find_last_not_of_pointer_size_size.pass.cpp?rev=224658&view=auto
==============================================================================
--- libcxx/trunk/test/std/experimental/string.view/string.view.find/find_last_not_of_pointer_size_size.pass.cpp (added)
+++ libcxx/trunk/test/std/experimental/string.view/string.view.find/find_last_not_of_pointer_size_size.pass.cpp Fri Dec 19 19:40:03 2014
@@ -0,0 +1,392 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <string>
+
+// constexpr size_type find_last_not_of(const charT* s, size_type pos, size_type n) const;
+
+#include <experimental/string_view>
+#include <cassert>
+
+#include "constexpr_char_traits.hpp"
+
+template <class S>
+void
+test(const S& s, const typename S::value_type* str, typename S::size_type pos,
+     typename S::size_type n, typename S::size_type x)
+{
+    assert(s.find_last_not_of(str, pos, n) == x);
+    if (x != S::npos)
+        assert(x <= pos && x < s.size());
+}
+
+template <class S>
+void test0()
+{
+    test(S(""), "", 0, 0, S::npos);
+    test(S(""), "irkhs", 0, 0, S::npos);
+    test(S(""), "kante", 0, 1, S::npos);
+    test(S(""), "oknlr", 0, 2, S::npos);
+    test(S(""), "pcdro", 0, 4, S::npos);
+    test(S(""), "bnrpe", 0, 5, S::npos);
+    test(S(""), "jtdaefblso", 0, 0, S::npos);
+    test(S(""), "oselktgbca", 0, 1, S::npos);
+    test(S(""), "eqgaplhckj", 0, 5, S::npos);
+    test(S(""), "bjahtcmnlp", 0, 9, S::npos);
+    test(S(""), "hjlcmgpket", 0, 10, S::npos);
+    test(S(""), "htaobedqikfplcgjsmrn", 0, 0, S::npos);
+    test(S(""), "hpqiarojkcdlsgnmfetb", 0, 1, S::npos);
+    test(S(""), "dfkaprhjloqetcsimnbg", 0, 10, S::npos);
+    test(S(""), "ihqrfebgadntlpmjksoc", 0, 19, S::npos);
+    test(S(""), "ngtjfcalbseiqrphmkdo", 0, 20, S::npos);
+    test(S(""), "", 1, 0, S::npos);
+    test(S(""), "lbtqd", 1, 0, S::npos);
+    test(S(""), "tboim", 1, 1, S::npos);
+    test(S(""), "slcer", 1, 2, S::npos);
+    test(S(""), "cbjfs", 1, 4, S::npos);
+    test(S(""), "aqibs", 1, 5, S::npos);
+    test(S(""), "gtfblmqinc", 1, 0, S::npos);
+    test(S(""), "mkqpbtdalg", 1, 1, S::npos);
+    test(S(""), "kphatlimcd", 1, 5, S::npos);
+    test(S(""), "pblasqogic", 1, 9, S::npos);
+    test(S(""), "arosdhcfme", 1, 10, S::npos);
+    test(S(""), "blkhjeogicatqfnpdmsr", 1, 0, S::npos);
+    test(S(""), "bmhineprjcoadgstflqk", 1, 1, S::npos);
+    test(S(""), "djkqcmetslnghpbarfoi", 1, 10, S::npos);
+    test(S(""), "lgokshjtpbemarcdqnfi", 1, 19, S::npos);
+    test(S(""), "bqjhtkfepimcnsgrlado", 1, 20, S::npos);
+    test(S("eaint"), "", 0, 0, 0);
+    test(S("binja"), "gfsrt", 0, 0, 0);
+    test(S("latkm"), "pfsoc", 0, 1, 0);
+    test(S("lecfr"), "tpflm", 0, 2, 0);
+    test(S("eqkst"), "sgkec", 0, 4, S::npos);
+    test(S("cdafr"), "romds", 0, 5, 0);
+    test(S("prbhe"), "qhjistlgmr", 0, 0, 0);
+    test(S("lbisk"), "pedfirsglo", 0, 1, 0);
+    test(S("hrlpd"), "aqcoslgrmk", 0, 5, 0);
+    test(S("ehmja"), "dabckmepqj", 0, 9, S::npos);
+    test(S("mhqgd"), "pqscrjthli", 0, 10, 0);
+    test(S("tgklq"), "kfphdcsjqmobliagtren", 0, 0, 0);
+    test(S("bocjs"), "rokpefncljibsdhqtagm", 0, 1, 0);
+    test(S("grbsd"), "afionmkphlebtcjqsgrd", 0, 10, 0);
+    test(S("ofjqr"), "aenmqplidhkofrjbctsg", 0, 19, S::npos);
+    test(S("btlfi"), "osjmbtcadhiklegrpqnf", 0, 20, S::npos);
+    test(S("clrgb"), "", 1, 0, 1);
+    test(S("tjmek"), "osmia", 1, 0, 1);
+    test(S("bgstp"), "ckonl", 1, 1, 1);
+    test(S("hstrk"), "ilcaj", 1, 2, 1);
+    test(S("kmspj"), "lasiq", 1, 4, 1);
+    test(S("tjboh"), "kfqmr", 1, 5, 1);
+    test(S("ilbcj"), "klnitfaobg", 1, 0, 1);
+    test(S("jkngf"), "gjhmdlqikp", 1, 1, 1);
+    test(S("gfcql"), "skbgtahqej", 1, 5, 1);
+    test(S("dqtlg"), "bjsdgtlpkf", 1, 9, 1);
+    test(S("bthpg"), "bjgfmnlkio", 1, 10, 1);
+    test(S("dgsnq"), "lbhepotfsjdqigcnamkr", 1, 0, 1);
+    test(S("rmfhp"), "tebangckmpsrqdlfojhi", 1, 1, 1);
+    test(S("jfdam"), "joflqbdkhtegimscpanr", 1, 10, S::npos);
+    test(S("edapb"), "adpmcohetfbsrjinlqkg", 1, 19, S::npos);
+    test(S("brfsm"), "iacldqjpfnogbsrhmetk", 1, 20, S::npos);
+    test(S("ndrhl"), "", 2, 0, 2);
+    test(S("mrecp"), "otkgb", 2, 0, 2);
+    test(S("qlasf"), "cqsjl", 2, 1, 2);
+    test(S("smaqd"), "dpifl", 2, 2, 2);
+    test(S("hjeni"), "oapht", 2, 4, 2);
+    test(S("ocmfj"), "cifts", 2, 5, 2);
+    test(S("hmftq"), "nmsckbgalo", 2, 0, 2);
+    test(S("fklad"), "tpksqhamle", 2, 1, 2);
+    test(S("dirnm"), "tpdrchmkji", 2, 5, 1);
+    test(S("hrgdc"), "ijagfkblst", 2, 9, 1);
+    test(S("ifakg"), "kpocsignjb", 2, 10, 2);
+    test(S("ebrgd"), "pecqtkjsnbdrialgmohf", 2, 0, 2);
+    test(S("rcjml"), "aiortphfcmkjebgsndql", 2, 1, 2);
+    test(S("peqmt"), "sdbkeamglhipojqftrcn", 2, 10, 2);
+    test(S("frehn"), "ljqncehgmfktroapidbs", 2, 19, S::npos);
+    test(S("tqolf"), "rtcfodilamkbenjghqps", 2, 20, S::npos);
+    test(S("cjgao"), "", 4, 0, 4);
+    test(S("kjplq"), "mabns", 4, 0, 4);
+    test(S("herni"), "bdnrp", 4, 1, 4);
+    test(S("tadrb"), "scidp", 4, 2, 4);
+    test(S("pkfeo"), "agbjl", 4, 4, 4);
+    test(S("hoser"), "jfmpr", 4, 5, 3);
+    test(S("kgrsp"), "rbpefghsmj", 4, 0, 4);
+    test(S("pgejb"), "apsfntdoqc", 4, 1, 4);
+    test(S("thlnq"), "ndkjeisgcl", 4, 5, 4);
+    test(S("nbmit"), "rnfpqatdeo", 4, 9, 3);
+    test(S("jgmib"), "bntjlqrfik", 4, 10, 2);
+    test(S("ncrfj"), "kcrtmpolnaqejghsfdbi", 4, 0, 4);
+    test(S("ncsik"), "lobheanpkmqidsrtcfgj", 4, 1, 4);
+    test(S("sgbfh"), "athdkljcnreqbgpmisof", 4, 10, 3);
+    test(S("dktbn"), "qkdmjialrscpbhefgont", 4, 19, 2);
+    test(S("fthqm"), "dmasojntqleribkgfchp", 4, 20, S::npos);
+    test(S("klopi"), "", 5, 0, 4);
+    test(S("dajhn"), "psthd", 5, 0, 4);
+    test(S("jbgno"), "rpmjd", 5, 1, 4);
+    test(S("hkjae"), "dfsmk", 5, 2, 4);
+}
+
+template <class S>
+void test1()
+{
+    test(S("gbhqo"), "skqne", 5, 4, 4);
+    test(S("ktdor"), "kipnf", 5, 5, 4);
+    test(S("ldprn"), "hmrnqdgifl", 5, 0, 4);
+    test(S("egmjk"), "fsmjcdairn", 5, 1, 4);
+    test(S("armql"), "pcdgltbrfj", 5, 5, 3);
+    test(S("cdhjo"), "aekfctpirg", 5, 9, 4);
+    test(S("jcons"), "ledihrsgpf", 5, 10, 3);
+    test(S("cbrkp"), "mqcklahsbtirgopefndj", 5, 0, 4);
+    test(S("fhgna"), "kmlthaoqgecrnpdbjfis", 5, 1, 4);
+    test(S("ejfcd"), "sfhbamcdptojlkrenqgi", 5, 10, 1);
+    test(S("kqjhe"), "pbniofmcedrkhlstgaqj", 5, 19, 2);
+    test(S("pbdjl"), "mongjratcskbhqiepfdl", 5, 20, S::npos);
+    test(S("gajqn"), "", 6, 0, 4);
+    test(S("stedk"), "hrnat", 6, 0, 4);
+    test(S("tjkaf"), "gsqdt", 6, 1, 4);
+    test(S("dthpe"), "bspkd", 6, 2, 4);
+    test(S("klhde"), "ohcmb", 6, 4, 4);
+    test(S("bhlki"), "heatr", 6, 5, 4);
+    test(S("lqmoh"), "pmblckedfn", 6, 0, 4);
+    test(S("mtqin"), "aceqmsrbik", 6, 1, 4);
+    test(S("dpqbr"), "lmbtdehjrn", 6, 5, 4);
+    test(S("kdhmo"), "teqmcrlgib", 6, 9, 4);
+    test(S("jblqp"), "njolbmspac", 6, 10, 3);
+    test(S("qmjgl"), "pofnhidklamecrbqjgst", 6, 0, 4);
+    test(S("rothp"), "jbhckmtgrqnosafedpli", 6, 1, 4);
+    test(S("ghknq"), "dobntpmqklicsahgjerf", 6, 10, 1);
+    test(S("eopfi"), "tpdshainjkbfoemlrgcq", 6, 19, S::npos);
+    test(S("dsnmg"), "oldpfgeakrnitscbjmqh", 6, 20, S::npos);
+    test(S("jnkrfhotgl"), "", 0, 0, 0);
+    test(S("dltjfngbko"), "rqegt", 0, 0, 0);
+    test(S("bmjlpkiqde"), "dashm", 0, 1, 0);
+    test(S("skrflobnqm"), "jqirk", 0, 2, 0);
+    test(S("jkpldtshrm"), "rckeg", 0, 4, 0);
+    test(S("ghasdbnjqo"), "jscie", 0, 5, 0);
+    test(S("igrkhpbqjt"), "efsphndliq", 0, 0, 0);
+    test(S("ikthdgcamf"), "gdicosleja", 0, 1, 0);
+    test(S("pcofgeniam"), "qcpjibosfl", 0, 5, S::npos);
+    test(S("rlfjgesqhc"), "lrhmefnjcq", 0, 9, S::npos);
+    test(S("itphbqsker"), "dtablcrseo", 0, 10, 0);
+    test(S("skjafcirqm"), "apckjsftedbhgomrnilq", 0, 0, 0);
+    test(S("tcqomarsfd"), "pcbrgflehjtiadnsokqm", 0, 1, 0);
+    test(S("rocfeldqpk"), "nsiadegjklhobrmtqcpf", 0, 10, 0);
+    test(S("cfpegndlkt"), "cpmajdqnolikhgsbretf", 0, 19, S::npos);
+    test(S("fqbtnkeasj"), "jcflkntmgiqrphdosaeb", 0, 20, S::npos);
+    test(S("shbcqnmoar"), "", 1, 0, 1);
+    test(S("bdoshlmfin"), "ontrs", 1, 0, 1);
+    test(S("khfrebnsgq"), "pfkna", 1, 1, 1);
+    test(S("getcrsaoji"), "ekosa", 1, 2, 0);
+    test(S("fjiknedcpq"), "anqhk", 1, 4, 1);
+    test(S("tkejgnafrm"), "jekca", 1, 5, 0);
+    test(S("jnakolqrde"), "ikemsjgacf", 1, 0, 1);
+    test(S("lcjptsmgbe"), "arolgsjkhm", 1, 1, 1);
+    test(S("itfsmcjorl"), "oftkbldhre", 1, 5, 0);
+    test(S("omchkfrjea"), "gbkqdoeftl", 1, 9, 1);
+    test(S("cigfqkated"), "sqcflrgtim", 1, 10, S::npos);
+    test(S("tscenjikml"), "fmhbkislrjdpanogqcet", 1, 0, 1);
+    test(S("qcpaemsinf"), "rnioadktqlgpbcjsmhef", 1, 1, 1);
+    test(S("gltkojeipd"), "oakgtnldpsefihqmjcbr", 1, 10, S::npos);
+    test(S("qistfrgnmp"), "gbnaelosidmcjqktfhpr", 1, 19, S::npos);
+    test(S("bdnpfcqaem"), "akbripjhlosndcmqgfet", 1, 20, S::npos);
+    test(S("ectnhskflp"), "", 5, 0, 5);
+    test(S("fgtianblpq"), "pijag", 5, 0, 5);
+    test(S("mfeqklirnh"), "jrckd", 5, 1, 5);
+    test(S("astedncjhk"), "qcloh", 5, 2, 5);
+    test(S("fhlqgcajbr"), "thlmp", 5, 4, 5);
+    test(S("epfhocmdng"), "qidmo", 5, 5, 5);
+    test(S("apcnsibger"), "lnegpsjqrd", 5, 0, 5);
+    test(S("aqkocrbign"), "rjqdablmfs", 5, 1, 4);
+    test(S("ijsmdtqgce"), "enkgpbsjaq", 5, 5, 5);
+    test(S("clobgsrken"), "kdsgoaijfh", 5, 9, 3);
+    test(S("jbhcfposld"), "trfqgmckbe", 5, 10, 5);
+    test(S("oqnpblhide"), "igetsracjfkdnpoblhqm", 5, 0, 5);
+    test(S("lroeasctif"), "nqctfaogirshlekbdjpm", 5, 1, 5);
+    test(S("bpjlgmiedh"), "csehfgomljdqinbartkp", 5, 10, 1);
+    test(S("pamkeoidrj"), "qahoegcmplkfsjbdnitr", 5, 19, S::npos);
+    test(S("espogqbthk"), "dpteiajrqmsognhlfbkc", 5, 20, S::npos);
+    test(S("shoiedtcjb"), "", 9, 0, 9);
+    test(S("ebcinjgads"), "tqbnh", 9, 0, 9);
+    test(S("dqmregkcfl"), "akmle", 9, 1, 9);
+    test(S("ngcrieqajf"), "iqfkm", 9, 2, 9);
+    test(S("qosmilgnjb"), "tqjsr", 9, 4, 9);
+    test(S("ikabsjtdfl"), "jplqg", 9, 5, 8);
+    test(S("ersmicafdh"), "oilnrbcgtj", 9, 0, 9);
+    test(S("fdnplotmgh"), "morkglpesn", 9, 1, 9);
+    test(S("fdbicojerm"), "dmicerngat", 9, 5, 8);
+    test(S("mbtafndjcq"), "radgeskbtc", 9, 9, 9);
+    test(S("mlenkpfdtc"), "ljikprsmqo", 9, 10, 9);
+    test(S("ahlcifdqgs"), "trqihkcgsjamfdbolnpe", 9, 0, 9);
+    test(S("bgjemaltks"), "lqmthbsrekajgnofcipd", 9, 1, 9);
+    test(S("pdhslbqrfc"), "jtalmedribkgqsopcnfh", 9, 10, 9);
+    test(S("dirhtsnjkc"), "spqfoiclmtagejbndkrh", 9, 19, 3);
+    test(S("dlroktbcja"), "nmotklspigjrdhcfaebq", 9, 20, S::npos);
+    test(S("ncjpmaekbs"), "", 10, 0, 9);
+    test(S("hlbosgmrak"), "hpmsd", 10, 0, 9);
+    test(S("pqfhsgilen"), "qnpor", 10, 1, 9);
+    test(S("gqtjsbdckh"), "otdma", 10, 2, 9);
+    test(S("cfkqpjlegi"), "efhjg", 10, 4, 9);
+    test(S("beanrfodgj"), "odpte", 10, 5, 9);
+    test(S("adtkqpbjfi"), "bctdgfmolr", 10, 0, 9);
+    test(S("iomkfthagj"), "oaklidrbqg", 10, 1, 9);
+}
+
+template <class S>
+void test2()
+{
+    test(S("sdpcilonqj"), "dnjfsagktr", 10, 5, 8);
+    test(S("gtfbdkqeml"), "nejaktmiqg", 10, 9, 9);
+    test(S("bmeqgcdorj"), "pjqonlebsf", 10, 10, 8);
+    test(S("etqlcanmob"), "dshmnbtolcjepgaikfqr", 10, 0, 9);
+    test(S("roqmkbdtia"), "iogfhpabtjkqlrnemcds", 10, 1, 9);
+    test(S("kadsithljf"), "ngridfabjsecpqltkmoh", 10, 10, 7);
+    test(S("sgtkpbfdmh"), "athmknplcgofrqejsdib", 10, 19, 5);
+    test(S("qgmetnabkl"), "ldobhmqcafnjtkeisgrp", 10, 20, S::npos);
+    test(S("cqjohampgd"), "", 11, 0, 9);
+    test(S("hobitmpsan"), "aocjb", 11, 0, 9);
+    test(S("tjehkpsalm"), "jbrnk", 11, 1, 9);
+    test(S("ngfbojitcl"), "tqedg", 11, 2, 9);
+    test(S("rcfkdbhgjo"), "nqskp", 11, 4, 9);
+    test(S("qghptonrea"), "eaqkl", 11, 5, 7);
+    test(S("hnprfgqjdl"), "reaoicljqm", 11, 0, 9);
+    test(S("hlmgabenti"), "lsftgajqpm", 11, 1, 9);
+    test(S("ofcjanmrbs"), "rlpfogmits", 11, 5, 9);
+    test(S("jqedtkornm"), "shkncmiaqj", 11, 9, 7);
+    test(S("rfedlasjmg"), "fpnatrhqgs", 11, 10, 8);
+    test(S("talpqjsgkm"), "sjclemqhnpdbgikarfot", 11, 0, 9);
+    test(S("lrkcbtqpie"), "otcmedjikgsfnqbrhpla", 11, 1, 9);
+    test(S("cipogdskjf"), "bonsaefdqiprkhlgtjcm", 11, 10, 8);
+    test(S("nqedcojahi"), "egpscmahijlfnkrodqtb", 11, 19, S::npos);
+    test(S("hefnrkmctj"), "kmqbfepjthgilscrndoa", 11, 20, S::npos);
+    test(S("atqirnmekfjolhpdsgcb"), "", 0, 0, 0);
+    test(S("echfkmlpribjnqsaogtd"), "prboq", 0, 0, 0);
+    test(S("qnhiftdgcleajbpkrosm"), "fjcqh", 0, 1, 0);
+    test(S("chamfknorbedjitgslpq"), "fmosa", 0, 2, 0);
+    test(S("njhqpibfmtlkaecdrgso"), "qdbok", 0, 4, 0);
+    test(S("ebnghfsqkprmdcljoiat"), "amslg", 0, 5, 0);
+    test(S("letjomsgihfrpqbkancd"), "smpltjneqb", 0, 0, 0);
+    test(S("nblgoipcrqeaktshjdmf"), "flitskrnge", 0, 1, 0);
+    test(S("cehkbngtjoiflqapsmrd"), "pgqihmlbef", 0, 5, 0);
+    test(S("mignapfoklbhcqjetdrs"), "cfpdqjtgsb", 0, 9, 0);
+    test(S("ceatbhlsqjgpnokfrmdi"), "htpsiaflom", 0, 10, 0);
+    test(S("ocihkjgrdelpfnmastqb"), "kpjfiaceghsrdtlbnomq", 0, 0, 0);
+    test(S("noelgschdtbrjfmiqkap"), "qhtbomidljgafneksprc", 0, 1, 0);
+    test(S("dkclqfombepritjnghas"), "nhtjobkcefldimpsaqgr", 0, 10, 0);
+    test(S("miklnresdgbhqcojftap"), "prabcjfqnoeskilmtgdh", 0, 19, S::npos);
+    test(S("htbcigojaqmdkfrnlsep"), "dtrgmchilkasqoebfpjn", 0, 20, S::npos);
+    test(S("febhmqtjanokscdirpgl"), "", 1, 0, 1);
+    test(S("loakbsqjpcrdhftniegm"), "sqome", 1, 0, 1);
+    test(S("reagphsqflbitdcjmkno"), "smfte", 1, 1, 1);
+    test(S("jitlfrqemsdhkopncabg"), "ciboh", 1, 2, 0);
+    test(S("mhtaepscdnrjqgbkifol"), "haois", 1, 4, 0);
+    test(S("tocesrfmnglpbjihqadk"), "abfki", 1, 5, 1);
+    test(S("lpfmctjrhdagneskbqoi"), "frdkocntmq", 1, 0, 1);
+    test(S("lsmqaepkdhncirbtjfgo"), "oasbpedlnr", 1, 1, 1);
+    test(S("epoiqmtldrabnkjhcfsg"), "kltqmhgand", 1, 5, 1);
+    test(S("emgasrilpknqojhtbdcf"), "gdtfjchpmr", 1, 9, 0);
+    test(S("hnfiagdpcklrjetqbsom"), "ponmcqblet", 1, 10, 0);
+    test(S("nsdfebgajhmtricpoklq"), "sgphqdnofeiklatbcmjr", 1, 0, 1);
+    test(S("atjgfsdlpobmeiqhncrk"), "ljqprsmigtfoneadckbh", 1, 1, 1);
+    test(S("sitodfgnrejlahcbmqkp"), "ligeojhafnkmrcsqtbdp", 1, 10, 0);
+    test(S("fraghmbiceknltjpqosd"), "lsimqfnjarbopedkhcgt", 1, 19, S::npos);
+    test(S("pmafenlhqtdbkirjsogc"), "abedmfjlghniorcqptks", 1, 20, S::npos);
+    test(S("pihgmoeqtnakrjslcbfd"), "", 10, 0, 10);
+    test(S("gjdkeprctqblnhiafsom"), "hqtoa", 10, 0, 10);
+    test(S("mkpnblfdsahrcqijteog"), "cahif", 10, 1, 10);
+    test(S("gckarqnelodfjhmbptis"), "kehis", 10, 2, 10);
+    test(S("gqpskidtbclomahnrjfe"), "kdlmh", 10, 4, 9);
+    test(S("pkldjsqrfgitbhmaecno"), "paeql", 10, 5, 10);
+    test(S("aftsijrbeklnmcdqhgop"), "aghoqiefnb", 10, 0, 10);
+    test(S("mtlgdrhafjkbiepqnsoc"), "jrbqaikpdo", 10, 1, 10);
+    test(S("pqgirnaefthokdmbsclj"), "smjonaeqcl", 10, 5, 10);
+    test(S("kpdbgjmtherlsfcqoina"), "eqbdrkcfah", 10, 9, 8);
+    test(S("jrlbothiknqmdgcfasep"), "kapmsienhf", 10, 10, 10);
+    test(S("mjogldqferckabinptsh"), "jpqotrlenfcsbhkaimdg", 10, 0, 10);
+    test(S("apoklnefbhmgqcdrisjt"), "jlbmhnfgtcqprikeados", 10, 1, 10);
+    test(S("ifeopcnrjbhkdgatmqls"), "stgbhfmdaljnpqoicker", 10, 10, 8);
+    test(S("ckqhaiesmjdnrgolbtpf"), "oihcetflbjagdsrkmqpn", 10, 19, S::npos);
+    test(S("bnlgapfimcoterskqdjh"), "adtclebmnpjsrqfkigoh", 10, 20, S::npos);
+    test(S("kgdlrobpmjcthqsafeni"), "", 19, 0, 19);
+    test(S("dfkechomjapgnslbtqir"), "beafg", 19, 0, 19);
+    test(S("rloadknfbqtgmhcsipje"), "iclat", 19, 1, 19);
+    test(S("mgjhkolrnadqbpetcifs"), "rkhnf", 19, 2, 19);
+    test(S("cmlfakiojdrgtbsphqen"), "clshq", 19, 4, 19);
+    test(S("kghbfipeomsntdalrqjc"), "dtcoj", 19, 5, 17);
+    test(S("eldiqckrnmtasbghjfpo"), "rqosnjmfth", 19, 0, 19);
+    test(S("abqjcfedgotihlnspkrm"), "siatdfqglh", 19, 1, 19);
+    test(S("qfbadrtjsimkolcenhpg"), "mrlshtpgjq", 19, 5, 19);
+    test(S("abseghclkjqifmtodrnp"), "adlcskgqjt", 19, 9, 19);
+    test(S("ibmsnlrjefhtdokacqpg"), "drshcjknaf", 19, 10, 19);
+    test(S("mrkfciqjebaponsthldg"), "etsaqroinghpkjdlfcbm", 19, 0, 19);
+    test(S("mjkticdeoqshpalrfbgn"), "sgepdnkqliambtrocfhj", 19, 1, 19);
+    test(S("rqnoclbdejgiphtfsakm"), "nlmcjaqgbsortfdihkpe", 19, 10, 18);
+    test(S("plkqbhmtfaeodjcrsing"), "racfnpmosldibqkghjet", 19, 19, 7);
+    test(S("oegalhmstjrfickpbndq"), "fjhdsctkqeiolagrnmbp", 19, 20, S::npos);
+    test(S("rdtgjcaohpblniekmsfq"), "", 20, 0, 19);
+    test(S("ofkqbnjetrmsaidphglc"), "ejanp", 20, 0, 19);
+    test(S("grkpahljcftesdmonqib"), "odife", 20, 1, 19);
+    test(S("jimlgbhfqkteospardcn"), "okaqd", 20, 2, 19);
+    test(S("gftenihpmslrjkqadcob"), "lcdbi", 20, 4, 18);
+    test(S("bmhldogtckrfsanijepq"), "fsqbj", 20, 5, 18);
+    test(S("nfqkrpjdesabgtlcmoih"), "bigdomnplq", 20, 0, 19);
+    test(S("focalnrpiqmdkstehbjg"), "apiblotgcd", 20, 1, 19);
+    test(S("rhqdspkmebiflcotnjga"), "acfhdenops", 20, 5, 18);
+    test(S("rahdtmsckfboqlpniegj"), "jopdeamcrk", 20, 9, 18);
+    test(S("fbkeiopclstmdqranjhg"), "trqncbkgmh", 20, 10, 17);
+    test(S("lifhpdgmbconstjeqark"), "tomglrkencbsfjqpihda", 20, 0, 19);
+}
+
+template <class S>
+void test3()
+{
+    test(S("pboqganrhedjmltsicfk"), "gbkhdnpoietfcmrslajq", 20, 1, 19);
+    test(S("klchabsimetjnqgorfpd"), "rtfnmbsglkjaichoqedp", 20, 10, 19);
+    test(S("sirfgmjqhctndbklaepo"), "ohkmdpfqbsacrtjnlgei", 20, 19, 1);
+    test(S("rlbdsiceaonqjtfpghkm"), "dlbrteoisgphmkncajfq", 20, 20, S::npos);
+    test(S("ecgdanriptblhjfqskom"), "", 21, 0, 19);
+    test(S("fdmiarlpgcskbhoteqjn"), "sjrlo", 21, 0, 19);
+    test(S("rlbstjqopignecmfadkh"), "qjpor", 21, 1, 19);
+    test(S("grjpqmbshektdolcafni"), "odhfn", 21, 2, 19);
+    test(S("sakfcohtqnibprjmlged"), "qtfin", 21, 4, 19);
+    test(S("mjtdglasihqpocebrfkn"), "hpqfo", 21, 5, 19);
+    test(S("okaplfrntghqbmeicsdj"), "fabmertkos", 21, 0, 19);
+    test(S("sahngemrtcjidqbklfpo"), "brqtgkmaej", 21, 1, 19);
+    test(S("dlmsipcnekhbgoaftqjr"), "nfrdeihsgl", 21, 5, 18);
+    test(S("ahegrmqnoiklpfsdbcjt"), "hlfrosekpi", 21, 9, 19);
+    test(S("hdsjbnmlegtkqripacof"), "atgbkrjdsm", 21, 10, 19);
+    test(S("pcnedrfjihqbalkgtoms"), "blnrptjgqmaifsdkhoec", 21, 0, 19);
+    test(S("qjidealmtpskrbfhocng"), "ctpmdahebfqjgknloris", 21, 1, 19);
+    test(S("qeindtagmokpfhsclrbj"), "apnkeqthrmlbfodiscgj", 21, 10, 19);
+    test(S("kpfegbjhsrnodltqciam"), "jdgictpframeoqlsbknh", 21, 19, 7);
+    test(S("hnbrcplsjfgiktoedmaq"), "qprlsfojamgndekthibc", 21, 20, S::npos);
+}
+
+int main()
+{
+    {
+    typedef std::experimental::string_view S;
+    test0<S>();
+    test1<S>();
+    test2<S>();
+    test3<S>();
+    }
+
+#if _LIBCPP_STD_VER > 11
+    {
+    typedef std::experimental::basic_string_view<char, constexpr_char_traits<char>> SV;
+    constexpr SV  sv1;
+    constexpr SV  sv2 { "abcde", 5 };
+
+    static_assert (sv1.find_last_not_of( "",      0, 0) == SV::npos, "" );
+    static_assert (sv1.find_last_not_of( "irkhs", 0, 5) == SV::npos, "" );
+    static_assert (sv2.find_last_not_of( "",      0, 0) == 0, "" );
+    static_assert (sv2.find_last_not_of( "gfsrt", 5, 0) == 4, "" );
+    static_assert (sv2.find_last_not_of( "lecar", 5, 0) == 4, "" );
+    }
+#endif
+}

Added: libcxx/trunk/test/std/experimental/string.view/string.view.find/find_last_not_of_string_view_size.pass.cpp
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/test/std/experimental/string.view/string.view.find/find_last_not_of_string_view_size.pass.cpp?rev=224658&view=auto
==============================================================================
--- libcxx/trunk/test/std/experimental/string.view/string.view.find/find_last_not_of_string_view_size.pass.cpp (added)
+++ libcxx/trunk/test/std/experimental/string.view/string.view.find/find_last_not_of_string_view_size.pass.cpp Fri Dec 19 19:40:03 2014
@@ -0,0 +1,148 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <string_view>
+
+// size_type find_last_not_of(const basic_string& str, size_type pos = npos) const;
+
+#include <experimental/string_view>
+#include <cassert>
+
+template <class S>
+void
+test(const S& s, const S& str, typename S::size_type pos, typename S::size_type x)
+{
+    assert(s.find_last_not_of(str, pos) == x);
+    if (x != S::npos)
+        assert(x <= pos && x < s.size());
+}
+
+template <class S>
+void
+test(const S& s, const S& str, typename S::size_type x)
+{
+    assert(s.find_last_not_of(str) == x);
+    if (x != S::npos)
+        assert(x < s.size());
+}
+
+template <class S>
+void test0()
+{
+    test(S(""), S(""), 0, S::npos);
+    test(S(""), S("laenf"), 0, S::npos);
+    test(S(""), S("pqlnkmbdjo"), 0, S::npos);
+    test(S(""), S("qkamfogpnljdcshbreti"), 0, S::npos);
+    test(S(""), S(""), 1, S::npos);
+    test(S(""), S("bjaht"), 1, S::npos);
+    test(S(""), S("hjlcmgpket"), 1, S::npos);
+    test(S(""), S("htaobedqikfplcgjsmrn"), 1, S::npos);
+    test(S("fodgq"), S(""), 0, 0);
+    test(S("qanej"), S("dfkap"), 0, 0);
+    test(S("clbao"), S("ihqrfebgad"), 0, 0);
+    test(S("mekdn"), S("ngtjfcalbseiqrphmkdo"), 0, S::npos);
+    test(S("srdfq"), S(""), 1, 1);
+    test(S("oemth"), S("ikcrq"), 1, 1);
+    test(S("cdaih"), S("dmajblfhsg"), 1, 0);
+    test(S("qohtk"), S("oqftjhdmkgsblacenirp"), 1, S::npos);
+    test(S("cshmd"), S(""), 2, 2);
+    test(S("lhcdo"), S("oebqi"), 2, 2);
+    test(S("qnsoh"), S("kojhpmbsfe"), 2, 1);
+    test(S("pkrof"), S("acbsjqogpltdkhinfrem"), 2, S::npos);
+    test(S("fmtsp"), S(""), 4, 4);
+    test(S("khbpm"), S("aobjd"), 4, 4);
+    test(S("pbsji"), S("pcbahntsje"), 4, 4);
+    test(S("mprdj"), S("fhepcrntkoagbmldqijs"), 4, S::npos);
+    test(S("eqmpa"), S(""), 5, 4);
+    test(S("omigs"), S("kocgb"), 5, 4);
+    test(S("onmje"), S("fbslrjiqkm"), 5, 4);
+    test(S("oqmrj"), S("jeidpcmalhfnqbgtrsko"), 5, S::npos);
+    test(S("schfa"), S(""), 6, 4);
+    test(S("igdsc"), S("qngpd"), 6, 4);
+    test(S("brqgo"), S("rodhqklgmb"), 6, S::npos);
+    test(S("tnrph"), S("thdjgafrlbkoiqcspmne"), 6, S::npos);
+    test(S("hcjitbfapl"), S(""), 0, 0);
+    test(S("daiprenocl"), S("ashjd"), 0, S::npos);
+    test(S("litpcfdghe"), S("mgojkldsqh"), 0, S::npos);
+    test(S("aidjksrolc"), S("imqnaghkfrdtlopbjesc"), 0, S::npos);
+    test(S("qpghtfbaji"), S(""), 1, 1);
+    test(S("gfshlcmdjr"), S("nadkh"), 1, 1);
+    test(S("nkodajteqp"), S("ofdrqmkebl"), 1, 0);
+    test(S("gbmetiprqd"), S("bdfjqgatlksriohemnpc"), 1, S::npos);
+    test(S("crnklpmegd"), S(""), 5, 5);
+    test(S("jsbtafedoc"), S("prqgn"), 5, 5);
+    test(S("qnmodrtkeb"), S("pejafmnokr"), 5, 4);
+    test(S("cpebqsfmnj"), S("odnqkgijrhabfmcestlp"), 5, S::npos);
+    test(S("lmofqdhpki"), S(""), 9, 9);
+    test(S("hnefkqimca"), S("rtjpa"), 9, 8);
+    test(S("drtasbgmfp"), S("ktsrmnqagd"), 9, 9);
+    test(S("lsaijeqhtr"), S("rtdhgcisbnmoaqkfpjle"), 9, S::npos);
+    test(S("elgofjmbrq"), S(""), 10, 9);
+    test(S("mjqdgalkpc"), S("dplqa"), 10, 9);
+    test(S("kthqnfcerm"), S("dkacjoptns"), 10, 9);
+    test(S("dfsjhanorc"), S("hqfimtrgnbekpdcsjalo"), 10, S::npos);
+    test(S("eqsgalomhb"), S(""), 11, 9);
+    test(S("akiteljmoh"), S("lofbc"), 11, 9);
+    test(S("hlbdfreqjo"), S("astoegbfpn"), 11, 8);
+    test(S("taqobhlerg"), S("pdgreqomsncafklhtibj"), 11, S::npos);
+    test(S("snafbdlghrjkpqtoceim"), S(""), 0, 0);
+    test(S("aemtbrgcklhndjisfpoq"), S("lbtqd"), 0, 0);
+    test(S("pnracgfkjdiholtbqsem"), S("tboimldpjh"), 0, S::npos);
+    test(S("dicfltehbsgrmojnpkaq"), S("slcerthdaiqjfnobgkpm"), 0, S::npos);
+    test(S("jlnkraeodhcspfgbqitm"), S(""), 1, 1);
+    test(S("lhosrngtmfjikbqpcade"), S("aqibs"), 1, 1);
+    test(S("rbtaqjhgkneisldpmfoc"), S("gtfblmqinc"), 1, 0);
+    test(S("gpifsqlrdkbonjtmheca"), S("mkqpbtdalgniorhfescj"), 1, S::npos);
+    test(S("hdpkobnsalmcfijregtq"), S(""), 10, 10);
+    test(S("jtlshdgqaiprkbcoenfm"), S("pblas"), 10, 9);
+    test(S("fkdrbqltsgmcoiphneaj"), S("arosdhcfme"), 10, 9);
+    test(S("crsplifgtqedjohnabmk"), S("blkhjeogicatqfnpdmsr"), 10, S::npos);
+    test(S("niptglfbosehkamrdqcj"), S(""), 19, 19);
+    test(S("copqdhstbingamjfkler"), S("djkqc"), 19, 19);
+    test(S("mrtaefilpdsgocnhqbjk"), S("lgokshjtpb"), 19, 16);
+    test(S("kojatdhlcmigpbfrqnes"), S("bqjhtkfepimcnsgrlado"), 19, S::npos);
+    test(S("eaintpchlqsbdgrkjofm"), S(""), 20, 19);
+    test(S("gjnhidfsepkrtaqbmclo"), S("nocfa"), 20, 18);
+    test(S("spocfaktqdbiejlhngmr"), S("bgtajmiedc"), 20, 19);
+    test(S("rphmlekgfscndtaobiqj"), S("lsckfnqgdahejiopbtmr"), 20, S::npos);
+    test(S("liatsqdoegkmfcnbhrpj"), S(""), 21, 19);
+    test(S("binjagtfldkrspcomqeh"), S("gfsrt"), 21, 19);
+    test(S("latkmisecnorjbfhqpdg"), S("pfsocbhjtm"), 21, 19);
+    test(S("lecfratdjkhnsmqpoigb"), S("tpflmdnoicjgkberhqsa"), 21, S::npos);
+}
+
+template <class S>
+void test1()
+{
+    test(S(""), S(""), S::npos);
+    test(S(""), S("laenf"), S::npos);
+    test(S(""), S("pqlnkmbdjo"), S::npos);
+    test(S(""), S("qkamfogpnljdcshbreti"), S::npos);
+    test(S("nhmko"), S(""), 4);
+    test(S("lahfb"), S("irkhs"), 4);
+    test(S("gmfhd"), S("kantesmpgj"), 4);
+    test(S("odaft"), S("oknlrstdpiqmjbaghcfe"), S::npos);
+    test(S("eolhfgpjqk"), S(""), 9);
+    test(S("nbatdlmekr"), S("bnrpe"), 8);
+    test(S("jdmciepkaq"), S("jtdaefblso"), 9);
+    test(S("hkbgspoflt"), S("oselktgbcapndfjihrmq"), S::npos);
+    test(S("gprdcokbnjhlsfmtieqa"), S(""), 19);
+    test(S("qjghlnftcaismkropdeb"), S("bjaht"), 18);
+    test(S("pnalfrdtkqcmojiesbhg"), S("hjlcmgpket"), 17);
+    test(S("pniotcfrhqsmgdkjbael"), S("htaobedqikfplcgjsmrn"), S::npos);
+}
+
+int main()
+{
+    {
+    typedef std::experimental::string_view S;
+    test0<S>();
+    test1<S>();
+    }
+}

Added: libcxx/trunk/test/std/experimental/string.view/string.view.find/find_last_of_char_size.pass.cpp
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/test/std/experimental/string.view/string.view.find/find_last_of_char_size.pass.cpp?rev=224658&view=auto
==============================================================================
--- libcxx/trunk/test/std/experimental/string.view/string.view.find/find_last_of_char_size.pass.cpp (added)
+++ libcxx/trunk/test/std/experimental/string.view/string.view.find/find_last_of_char_size.pass.cpp Fri Dec 19 19:40:03 2014
@@ -0,0 +1,82 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <string_view>
+
+// constexpr size_type find_last_of(charT c, size_type pos = npos) const;
+
+#include <experimental/string_view>
+#include <cassert>
+
+#include "constexpr_char_traits.hpp"
+
+template <class S>
+void
+test(const S& s, typename S::value_type c, typename S::size_type pos,
+     typename S::size_type x)
+{
+    assert(s.find_last_of(c, pos) == x);
+    if (x != S::npos)
+        assert(x <= pos && x < s.size());
+}
+
+template <class S>
+void
+test(const S& s, typename S::value_type c, typename S::size_type x)
+{
+    assert(s.find_last_of(c) == x);
+    if (x != S::npos)
+        assert(x < s.size());
+}
+
+int main()
+{
+    {
+    typedef std::experimental::string_view S;
+    test(S(""), 'm', 0, S::npos);
+    test(S(""), 'm', 1, S::npos);
+    test(S("kitcj"), 'm', 0, S::npos);
+    test(S("qkamf"), 'm', 1, S::npos);
+    test(S("nhmko"), 'm', 2, 2);
+    test(S("tpsaf"), 'm', 4, S::npos);
+    test(S("lahfb"), 'm', 5, S::npos);
+    test(S("irkhs"), 'm', 6, S::npos);
+    test(S("gmfhdaipsr"), 'm', 0, S::npos);
+    test(S("kantesmpgj"), 'm', 1, S::npos);
+    test(S("odaftiegpm"), 'm', 5, S::npos);
+    test(S("oknlrstdpi"), 'm', 9, S::npos);
+    test(S("eolhfgpjqk"), 'm', 10, S::npos);
+    test(S("pcdrofikas"), 'm', 11, S::npos);
+    test(S("nbatdlmekrgcfqsophij"), 'm', 0, S::npos);
+    test(S("bnrpehidofmqtcksjgla"), 'm', 1, S::npos);
+    test(S("jdmciepkaqgotsrfnhlb"), 'm', 10, 2);
+    test(S("jtdaefblsokrmhpgcnqi"), 'm', 19, 12);
+    test(S("hkbgspofltajcnedqmri"), 'm', 20, 17);
+    test(S("oselktgbcapndfjihrmq"), 'm', 21, 18);
+
+    test(S(""), 'm', S::npos);
+    test(S("csope"), 'm', S::npos);
+    test(S("gfsmthlkon"), 'm', 3);
+    test(S("laenfsbridchgotmkqpj"), 'm', 15);
+    }
+
+#if _LIBCPP_STD_VER > 11
+    {
+    typedef std::experimental::basic_string_view<char, constexpr_char_traits<char>> SV;
+    constexpr SV  sv1;
+    constexpr SV  sv2 { "abcde", 5 };
+
+    static_assert (sv1.find_last_of( 'i', 0 ) == SV::npos, "" );
+    static_assert (sv1.find_last_of( 'i', 1 ) == SV::npos, "" );
+    static_assert (sv2.find_last_of( 'a', 0 ) == 0, "" );
+    static_assert (sv2.find_last_of( 'a', 1 ) == 0, "" );
+    static_assert (sv2.find_last_of( 'e', 5 ) == 4, "" );
+    }
+#endif
+}

Added: libcxx/trunk/test/std/experimental/string.view/string.view.find/find_last_of_pointer_size.pass.cpp
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/test/std/experimental/string.view/string.view.find/find_last_of_pointer_size.pass.cpp?rev=224658&view=auto
==============================================================================
--- libcxx/trunk/test/std/experimental/string.view/string.view.find/find_last_of_pointer_size.pass.cpp (added)
+++ libcxx/trunk/test/std/experimental/string.view/string.view.find/find_last_of_pointer_size.pass.cpp Fri Dec 19 19:40:03 2014
@@ -0,0 +1,165 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <string_view>
+
+// constexpr size_type find_last_of(const charT* s, size_type pos = npos) const;
+
+#include <experimental/string_view>
+#include <cassert>
+
+#include "constexpr_char_traits.hpp"
+
+template <class S>
+void
+test(const S& s, const typename S::value_type* str, typename S::size_type pos,
+     typename S::size_type x)
+{
+    assert(s.find_last_of(str, pos) == x);
+    if (x != S::npos)
+        assert(x <= pos && x < s.size());
+}
+
+template <class S>
+void
+test(const S& s, const typename S::value_type* str, typename S::size_type x)
+{
+    assert(s.find_last_of(str) == x);
+    if (x != S::npos)
+        assert(x < s.size());
+}
+
+template <class S>
+void test0()
+{
+    test(S(""), "", 0, S::npos);
+    test(S(""), "laenf", 0, S::npos);
+    test(S(""), "pqlnkmbdjo", 0, S::npos);
+    test(S(""), "qkamfogpnljdcshbreti", 0, S::npos);
+    test(S(""), "", 1, S::npos);
+    test(S(""), "bjaht", 1, S::npos);
+    test(S(""), "hjlcmgpket", 1, S::npos);
+    test(S(""), "htaobedqikfplcgjsmrn", 1, S::npos);
+    test(S("fodgq"), "", 0, S::npos);
+    test(S("qanej"), "dfkap", 0, S::npos);
+    test(S("clbao"), "ihqrfebgad", 0, S::npos);
+    test(S("mekdn"), "ngtjfcalbseiqrphmkdo", 0, 0);
+    test(S("srdfq"), "", 1, S::npos);
+    test(S("oemth"), "ikcrq", 1, S::npos);
+    test(S("cdaih"), "dmajblfhsg", 1, 1);
+    test(S("qohtk"), "oqftjhdmkgsblacenirp", 1, 1);
+    test(S("cshmd"), "", 2, S::npos);
+    test(S("lhcdo"), "oebqi", 2, S::npos);
+    test(S("qnsoh"), "kojhpmbsfe", 2, 2);
+    test(S("pkrof"), "acbsjqogpltdkhinfrem", 2, 2);
+    test(S("fmtsp"), "", 4, S::npos);
+    test(S("khbpm"), "aobjd", 4, 2);
+    test(S("pbsji"), "pcbahntsje", 4, 3);
+    test(S("mprdj"), "fhepcrntkoagbmldqijs", 4, 4);
+    test(S("eqmpa"), "", 5, S::npos);
+    test(S("omigs"), "kocgb", 5, 3);
+    test(S("onmje"), "fbslrjiqkm", 5, 3);
+    test(S("oqmrj"), "jeidpcmalhfnqbgtrsko", 5, 4);
+    test(S("schfa"), "", 6, S::npos);
+    test(S("igdsc"), "qngpd", 6, 2);
+    test(S("brqgo"), "rodhqklgmb", 6, 4);
+    test(S("tnrph"), "thdjgafrlbkoiqcspmne", 6, 4);
+    test(S("hcjitbfapl"), "", 0, S::npos);
+    test(S("daiprenocl"), "ashjd", 0, 0);
+    test(S("litpcfdghe"), "mgojkldsqh", 0, 0);
+    test(S("aidjksrolc"), "imqnaghkfrdtlopbjesc", 0, 0);
+    test(S("qpghtfbaji"), "", 1, S::npos);
+    test(S("gfshlcmdjr"), "nadkh", 1, S::npos);
+    test(S("nkodajteqp"), "ofdrqmkebl", 1, 1);
+    test(S("gbmetiprqd"), "bdfjqgatlksriohemnpc", 1, 1);
+    test(S("crnklpmegd"), "", 5, S::npos);
+    test(S("jsbtafedoc"), "prqgn", 5, S::npos);
+    test(S("qnmodrtkeb"), "pejafmnokr", 5, 5);
+    test(S("cpebqsfmnj"), "odnqkgijrhabfmcestlp", 5, 5);
+    test(S("lmofqdhpki"), "", 9, S::npos);
+    test(S("hnefkqimca"), "rtjpa", 9, 9);
+    test(S("drtasbgmfp"), "ktsrmnqagd", 9, 7);
+    test(S("lsaijeqhtr"), "rtdhgcisbnmoaqkfpjle", 9, 9);
+    test(S("elgofjmbrq"), "", 10, S::npos);
+    test(S("mjqdgalkpc"), "dplqa", 10, 8);
+    test(S("kthqnfcerm"), "dkacjoptns", 10, 6);
+    test(S("dfsjhanorc"), "hqfimtrgnbekpdcsjalo", 10, 9);
+    test(S("eqsgalomhb"), "", 11, S::npos);
+    test(S("akiteljmoh"), "lofbc", 11, 8);
+    test(S("hlbdfreqjo"), "astoegbfpn", 11, 9);
+    test(S("taqobhlerg"), "pdgreqomsncafklhtibj", 11, 9);
+    test(S("snafbdlghrjkpqtoceim"), "", 0, S::npos);
+    test(S("aemtbrgcklhndjisfpoq"), "lbtqd", 0, S::npos);
+    test(S("pnracgfkjdiholtbqsem"), "tboimldpjh", 0, 0);
+    test(S("dicfltehbsgrmojnpkaq"), "slcerthdaiqjfnobgkpm", 0, 0);
+    test(S("jlnkraeodhcspfgbqitm"), "", 1, S::npos);
+    test(S("lhosrngtmfjikbqpcade"), "aqibs", 1, S::npos);
+    test(S("rbtaqjhgkneisldpmfoc"), "gtfblmqinc", 1, 1);
+    test(S("gpifsqlrdkbonjtmheca"), "mkqpbtdalgniorhfescj", 1, 1);
+    test(S("hdpkobnsalmcfijregtq"), "", 10, S::npos);
+    test(S("jtlshdgqaiprkbcoenfm"), "pblas", 10, 10);
+    test(S("fkdrbqltsgmcoiphneaj"), "arosdhcfme", 10, 10);
+    test(S("crsplifgtqedjohnabmk"), "blkhjeogicatqfnpdmsr", 10, 10);
+    test(S("niptglfbosehkamrdqcj"), "", 19, S::npos);
+    test(S("copqdhstbingamjfkler"), "djkqc", 19, 16);
+    test(S("mrtaefilpdsgocnhqbjk"), "lgokshjtpb", 19, 19);
+    test(S("kojatdhlcmigpbfrqnes"), "bqjhtkfepimcnsgrlado", 19, 19);
+    test(S("eaintpchlqsbdgrkjofm"), "", 20, S::npos);
+    test(S("gjnhidfsepkrtaqbmclo"), "nocfa", 20, 19);
+    test(S("spocfaktqdbiejlhngmr"), "bgtajmiedc", 20, 18);
+    test(S("rphmlekgfscndtaobiqj"), "lsckfnqgdahejiopbtmr", 20, 19);
+    test(S("liatsqdoegkmfcnbhrpj"), "", 21, S::npos);
+    test(S("binjagtfldkrspcomqeh"), "gfsrt", 21, 12);
+    test(S("latkmisecnorjbfhqpdg"), "pfsocbhjtm", 21, 17);
+    test(S("lecfratdjkhnsmqpoigb"), "tpflmdnoicjgkberhqsa", 21, 19);
+}
+
+template <class S>
+void test1()
+{
+    test(S(""), "", S::npos);
+    test(S(""), "laenf", S::npos);
+    test(S(""), "pqlnkmbdjo", S::npos);
+    test(S(""), "qkamfogpnljdcshbreti", S::npos);
+    test(S("nhmko"), "", S::npos);
+    test(S("lahfb"), "irkhs", 2);
+    test(S("gmfhd"), "kantesmpgj", 1);
+    test(S("odaft"), "oknlrstdpiqmjbaghcfe", 4);
+    test(S("eolhfgpjqk"), "", S::npos);
+    test(S("nbatdlmekr"), "bnrpe", 9);
+    test(S("jdmciepkaq"), "jtdaefblso", 8);
+    test(S("hkbgspoflt"), "oselktgbcapndfjihrmq", 9);
+    test(S("gprdcokbnjhlsfmtieqa"), "", S::npos);
+    test(S("qjghlnftcaismkropdeb"), "bjaht", 19);
+    test(S("pnalfrdtkqcmojiesbhg"), "hjlcmgpket", 19);
+    test(S("pniotcfrhqsmgdkjbael"), "htaobedqikfplcgjsmrn", 19);
+}
+
+int main()
+{
+    {
+    typedef std::experimental::string_view S;
+    test0<S>();
+    test1<S>();
+    }
+
+#if _LIBCPP_STD_VER > 11
+    {
+    typedef std::experimental::basic_string_view<char, constexpr_char_traits<char>> SV;
+    constexpr SV  sv1;
+    constexpr SV  sv2 { "abcde", 5 };
+
+    static_assert (sv1.find_last_of( "",      0) == SV::npos, "" );
+    static_assert (sv1.find_last_of( "irkhs", 5) == SV::npos, "" );
+    static_assert (sv2.find_last_of( "",      0) == SV::npos, "" );
+    static_assert (sv2.find_last_of( "gfsrt", 5) == SV::npos, "" );
+    static_assert (sv2.find_last_of( "lecar", 5) == 4, "" );
+    }
+#endif
+}

Added: libcxx/trunk/test/std/experimental/string.view/string.view.find/find_last_of_pointer_size_size.pass.cpp
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/test/std/experimental/string.view/string.view.find/find_last_of_pointer_size_size.pass.cpp?rev=224658&view=auto
==============================================================================
--- libcxx/trunk/test/std/experimental/string.view/string.view.find/find_last_of_pointer_size_size.pass.cpp (added)
+++ libcxx/trunk/test/std/experimental/string.view/string.view.find/find_last_of_pointer_size_size.pass.cpp Fri Dec 19 19:40:03 2014
@@ -0,0 +1,392 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <string_view>
+
+// constexpr size_type find_last_of(const charT* s, size_type pos, size_type n) const;
+
+#include <experimental/string_view>
+#include <cassert>
+
+#include "constexpr_char_traits.hpp"
+
+template <class S>
+void
+test(const S& s, const typename S::value_type* str, typename S::size_type pos,
+     typename S::size_type n, typename S::size_type x)
+{
+    assert(s.find_last_of(str, pos, n) == x);
+    if (x != S::npos)
+        assert(x <= pos && x < s.size());
+}
+
+template <class S>
+void test0()
+{
+    test(S(""), "", 0, 0, S::npos);
+    test(S(""), "irkhs", 0, 0, S::npos);
+    test(S(""), "kante", 0, 1, S::npos);
+    test(S(""), "oknlr", 0, 2, S::npos);
+    test(S(""), "pcdro", 0, 4, S::npos);
+    test(S(""), "bnrpe", 0, 5, S::npos);
+    test(S(""), "jtdaefblso", 0, 0, S::npos);
+    test(S(""), "oselktgbca", 0, 1, S::npos);
+    test(S(""), "eqgaplhckj", 0, 5, S::npos);
+    test(S(""), "bjahtcmnlp", 0, 9, S::npos);
+    test(S(""), "hjlcmgpket", 0, 10, S::npos);
+    test(S(""), "htaobedqikfplcgjsmrn", 0, 0, S::npos);
+    test(S(""), "hpqiarojkcdlsgnmfetb", 0, 1, S::npos);
+    test(S(""), "dfkaprhjloqetcsimnbg", 0, 10, S::npos);
+    test(S(""), "ihqrfebgadntlpmjksoc", 0, 19, S::npos);
+    test(S(""), "ngtjfcalbseiqrphmkdo", 0, 20, S::npos);
+    test(S(""), "", 1, 0, S::npos);
+    test(S(""), "lbtqd", 1, 0, S::npos);
+    test(S(""), "tboim", 1, 1, S::npos);
+    test(S(""), "slcer", 1, 2, S::npos);
+    test(S(""), "cbjfs", 1, 4, S::npos);
+    test(S(""), "aqibs", 1, 5, S::npos);
+    test(S(""), "gtfblmqinc", 1, 0, S::npos);
+    test(S(""), "mkqpbtdalg", 1, 1, S::npos);
+    test(S(""), "kphatlimcd", 1, 5, S::npos);
+    test(S(""), "pblasqogic", 1, 9, S::npos);
+    test(S(""), "arosdhcfme", 1, 10, S::npos);
+    test(S(""), "blkhjeogicatqfnpdmsr", 1, 0, S::npos);
+    test(S(""), "bmhineprjcoadgstflqk", 1, 1, S::npos);
+    test(S(""), "djkqcmetslnghpbarfoi", 1, 10, S::npos);
+    test(S(""), "lgokshjtpbemarcdqnfi", 1, 19, S::npos);
+    test(S(""), "bqjhtkfepimcnsgrlado", 1, 20, S::npos);
+    test(S("eaint"), "", 0, 0, S::npos);
+    test(S("binja"), "gfsrt", 0, 0, S::npos);
+    test(S("latkm"), "pfsoc", 0, 1, S::npos);
+    test(S("lecfr"), "tpflm", 0, 2, S::npos);
+    test(S("eqkst"), "sgkec", 0, 4, 0);
+    test(S("cdafr"), "romds", 0, 5, S::npos);
+    test(S("prbhe"), "qhjistlgmr", 0, 0, S::npos);
+    test(S("lbisk"), "pedfirsglo", 0, 1, S::npos);
+    test(S("hrlpd"), "aqcoslgrmk", 0, 5, S::npos);
+    test(S("ehmja"), "dabckmepqj", 0, 9, 0);
+    test(S("mhqgd"), "pqscrjthli", 0, 10, S::npos);
+    test(S("tgklq"), "kfphdcsjqmobliagtren", 0, 0, S::npos);
+    test(S("bocjs"), "rokpefncljibsdhqtagm", 0, 1, S::npos);
+    test(S("grbsd"), "afionmkphlebtcjqsgrd", 0, 10, S::npos);
+    test(S("ofjqr"), "aenmqplidhkofrjbctsg", 0, 19, 0);
+    test(S("btlfi"), "osjmbtcadhiklegrpqnf", 0, 20, 0);
+    test(S("clrgb"), "", 1, 0, S::npos);
+    test(S("tjmek"), "osmia", 1, 0, S::npos);
+    test(S("bgstp"), "ckonl", 1, 1, S::npos);
+    test(S("hstrk"), "ilcaj", 1, 2, S::npos);
+    test(S("kmspj"), "lasiq", 1, 4, S::npos);
+    test(S("tjboh"), "kfqmr", 1, 5, S::npos);
+    test(S("ilbcj"), "klnitfaobg", 1, 0, S::npos);
+    test(S("jkngf"), "gjhmdlqikp", 1, 1, S::npos);
+    test(S("gfcql"), "skbgtahqej", 1, 5, 0);
+    test(S("dqtlg"), "bjsdgtlpkf", 1, 9, 0);
+    test(S("bthpg"), "bjgfmnlkio", 1, 10, 0);
+    test(S("dgsnq"), "lbhepotfsjdqigcnamkr", 1, 0, S::npos);
+    test(S("rmfhp"), "tebangckmpsrqdlfojhi", 1, 1, S::npos);
+    test(S("jfdam"), "joflqbdkhtegimscpanr", 1, 10, 1);
+    test(S("edapb"), "adpmcohetfbsrjinlqkg", 1, 19, 1);
+    test(S("brfsm"), "iacldqjpfnogbsrhmetk", 1, 20, 1);
+    test(S("ndrhl"), "", 2, 0, S::npos);
+    test(S("mrecp"), "otkgb", 2, 0, S::npos);
+    test(S("qlasf"), "cqsjl", 2, 1, S::npos);
+    test(S("smaqd"), "dpifl", 2, 2, S::npos);
+    test(S("hjeni"), "oapht", 2, 4, 0);
+    test(S("ocmfj"), "cifts", 2, 5, 1);
+    test(S("hmftq"), "nmsckbgalo", 2, 0, S::npos);
+    test(S("fklad"), "tpksqhamle", 2, 1, S::npos);
+    test(S("dirnm"), "tpdrchmkji", 2, 5, 2);
+    test(S("hrgdc"), "ijagfkblst", 2, 9, 2);
+    test(S("ifakg"), "kpocsignjb", 2, 10, 0);
+    test(S("ebrgd"), "pecqtkjsnbdrialgmohf", 2, 0, S::npos);
+    test(S("rcjml"), "aiortphfcmkjebgsndql", 2, 1, S::npos);
+    test(S("peqmt"), "sdbkeamglhipojqftrcn", 2, 10, 1);
+    test(S("frehn"), "ljqncehgmfktroapidbs", 2, 19, 2);
+    test(S("tqolf"), "rtcfodilamkbenjghqps", 2, 20, 2);
+    test(S("cjgao"), "", 4, 0, S::npos);
+    test(S("kjplq"), "mabns", 4, 0, S::npos);
+    test(S("herni"), "bdnrp", 4, 1, S::npos);
+    test(S("tadrb"), "scidp", 4, 2, S::npos);
+    test(S("pkfeo"), "agbjl", 4, 4, S::npos);
+    test(S("hoser"), "jfmpr", 4, 5, 4);
+    test(S("kgrsp"), "rbpefghsmj", 4, 0, S::npos);
+    test(S("pgejb"), "apsfntdoqc", 4, 1, S::npos);
+    test(S("thlnq"), "ndkjeisgcl", 4, 5, 3);
+    test(S("nbmit"), "rnfpqatdeo", 4, 9, 4);
+    test(S("jgmib"), "bntjlqrfik", 4, 10, 4);
+    test(S("ncrfj"), "kcrtmpolnaqejghsfdbi", 4, 0, S::npos);
+    test(S("ncsik"), "lobheanpkmqidsrtcfgj", 4, 1, S::npos);
+    test(S("sgbfh"), "athdkljcnreqbgpmisof", 4, 10, 4);
+    test(S("dktbn"), "qkdmjialrscpbhefgont", 4, 19, 4);
+    test(S("fthqm"), "dmasojntqleribkgfchp", 4, 20, 4);
+    test(S("klopi"), "", 5, 0, S::npos);
+    test(S("dajhn"), "psthd", 5, 0, S::npos);
+    test(S("jbgno"), "rpmjd", 5, 1, S::npos);
+    test(S("hkjae"), "dfsmk", 5, 2, S::npos);
+}
+
+template <class S>
+void test1()
+{
+    test(S("gbhqo"), "skqne", 5, 4, 3);
+    test(S("ktdor"), "kipnf", 5, 5, 0);
+    test(S("ldprn"), "hmrnqdgifl", 5, 0, S::npos);
+    test(S("egmjk"), "fsmjcdairn", 5, 1, S::npos);
+    test(S("armql"), "pcdgltbrfj", 5, 5, 4);
+    test(S("cdhjo"), "aekfctpirg", 5, 9, 0);
+    test(S("jcons"), "ledihrsgpf", 5, 10, 4);
+    test(S("cbrkp"), "mqcklahsbtirgopefndj", 5, 0, S::npos);
+    test(S("fhgna"), "kmlthaoqgecrnpdbjfis", 5, 1, S::npos);
+    test(S("ejfcd"), "sfhbamcdptojlkrenqgi", 5, 10, 4);
+    test(S("kqjhe"), "pbniofmcedrkhlstgaqj", 5, 19, 4);
+    test(S("pbdjl"), "mongjratcskbhqiepfdl", 5, 20, 4);
+    test(S("gajqn"), "", 6, 0, S::npos);
+    test(S("stedk"), "hrnat", 6, 0, S::npos);
+    test(S("tjkaf"), "gsqdt", 6, 1, S::npos);
+    test(S("dthpe"), "bspkd", 6, 2, S::npos);
+    test(S("klhde"), "ohcmb", 6, 4, 2);
+    test(S("bhlki"), "heatr", 6, 5, 1);
+    test(S("lqmoh"), "pmblckedfn", 6, 0, S::npos);
+    test(S("mtqin"), "aceqmsrbik", 6, 1, S::npos);
+    test(S("dpqbr"), "lmbtdehjrn", 6, 5, 3);
+    test(S("kdhmo"), "teqmcrlgib", 6, 9, 3);
+    test(S("jblqp"), "njolbmspac", 6, 10, 4);
+    test(S("qmjgl"), "pofnhidklamecrbqjgst", 6, 0, S::npos);
+    test(S("rothp"), "jbhckmtgrqnosafedpli", 6, 1, S::npos);
+    test(S("ghknq"), "dobntpmqklicsahgjerf", 6, 10, 4);
+    test(S("eopfi"), "tpdshainjkbfoemlrgcq", 6, 19, 4);
+    test(S("dsnmg"), "oldpfgeakrnitscbjmqh", 6, 20, 4);
+    test(S("jnkrfhotgl"), "", 0, 0, S::npos);
+    test(S("dltjfngbko"), "rqegt", 0, 0, S::npos);
+    test(S("bmjlpkiqde"), "dashm", 0, 1, S::npos);
+    test(S("skrflobnqm"), "jqirk", 0, 2, S::npos);
+    test(S("jkpldtshrm"), "rckeg", 0, 4, S::npos);
+    test(S("ghasdbnjqo"), "jscie", 0, 5, S::npos);
+    test(S("igrkhpbqjt"), "efsphndliq", 0, 0, S::npos);
+    test(S("ikthdgcamf"), "gdicosleja", 0, 1, S::npos);
+    test(S("pcofgeniam"), "qcpjibosfl", 0, 5, 0);
+    test(S("rlfjgesqhc"), "lrhmefnjcq", 0, 9, 0);
+    test(S("itphbqsker"), "dtablcrseo", 0, 10, S::npos);
+    test(S("skjafcirqm"), "apckjsftedbhgomrnilq", 0, 0, S::npos);
+    test(S("tcqomarsfd"), "pcbrgflehjtiadnsokqm", 0, 1, S::npos);
+    test(S("rocfeldqpk"), "nsiadegjklhobrmtqcpf", 0, 10, S::npos);
+    test(S("cfpegndlkt"), "cpmajdqnolikhgsbretf", 0, 19, 0);
+    test(S("fqbtnkeasj"), "jcflkntmgiqrphdosaeb", 0, 20, 0);
+    test(S("shbcqnmoar"), "", 1, 0, S::npos);
+    test(S("bdoshlmfin"), "ontrs", 1, 0, S::npos);
+    test(S("khfrebnsgq"), "pfkna", 1, 1, S::npos);
+    test(S("getcrsaoji"), "ekosa", 1, 2, 1);
+    test(S("fjiknedcpq"), "anqhk", 1, 4, S::npos);
+    test(S("tkejgnafrm"), "jekca", 1, 5, 1);
+    test(S("jnakolqrde"), "ikemsjgacf", 1, 0, S::npos);
+    test(S("lcjptsmgbe"), "arolgsjkhm", 1, 1, S::npos);
+    test(S("itfsmcjorl"), "oftkbldhre", 1, 5, 1);
+    test(S("omchkfrjea"), "gbkqdoeftl", 1, 9, 0);
+    test(S("cigfqkated"), "sqcflrgtim", 1, 10, 1);
+    test(S("tscenjikml"), "fmhbkislrjdpanogqcet", 1, 0, S::npos);
+    test(S("qcpaemsinf"), "rnioadktqlgpbcjsmhef", 1, 1, S::npos);
+    test(S("gltkojeipd"), "oakgtnldpsefihqmjcbr", 1, 10, 1);
+    test(S("qistfrgnmp"), "gbnaelosidmcjqktfhpr", 1, 19, 1);
+    test(S("bdnpfcqaem"), "akbripjhlosndcmqgfet", 1, 20, 1);
+    test(S("ectnhskflp"), "", 5, 0, S::npos);
+    test(S("fgtianblpq"), "pijag", 5, 0, S::npos);
+    test(S("mfeqklirnh"), "jrckd", 5, 1, S::npos);
+    test(S("astedncjhk"), "qcloh", 5, 2, S::npos);
+    test(S("fhlqgcajbr"), "thlmp", 5, 4, 2);
+    test(S("epfhocmdng"), "qidmo", 5, 5, 4);
+    test(S("apcnsibger"), "lnegpsjqrd", 5, 0, S::npos);
+    test(S("aqkocrbign"), "rjqdablmfs", 5, 1, 5);
+    test(S("ijsmdtqgce"), "enkgpbsjaq", 5, 5, S::npos);
+    test(S("clobgsrken"), "kdsgoaijfh", 5, 9, 5);
+    test(S("jbhcfposld"), "trfqgmckbe", 5, 10, 4);
+    test(S("oqnpblhide"), "igetsracjfkdnpoblhqm", 5, 0, S::npos);
+    test(S("lroeasctif"), "nqctfaogirshlekbdjpm", 5, 1, S::npos);
+    test(S("bpjlgmiedh"), "csehfgomljdqinbartkp", 5, 10, 5);
+    test(S("pamkeoidrj"), "qahoegcmplkfsjbdnitr", 5, 19, 5);
+    test(S("espogqbthk"), "dpteiajrqmsognhlfbkc", 5, 20, 5);
+    test(S("shoiedtcjb"), "", 9, 0, S::npos);
+    test(S("ebcinjgads"), "tqbnh", 9, 0, S::npos);
+    test(S("dqmregkcfl"), "akmle", 9, 1, S::npos);
+    test(S("ngcrieqajf"), "iqfkm", 9, 2, 6);
+    test(S("qosmilgnjb"), "tqjsr", 9, 4, 8);
+    test(S("ikabsjtdfl"), "jplqg", 9, 5, 9);
+    test(S("ersmicafdh"), "oilnrbcgtj", 9, 0, S::npos);
+    test(S("fdnplotmgh"), "morkglpesn", 9, 1, 7);
+    test(S("fdbicojerm"), "dmicerngat", 9, 5, 9);
+    test(S("mbtafndjcq"), "radgeskbtc", 9, 9, 6);
+    test(S("mlenkpfdtc"), "ljikprsmqo", 9, 10, 5);
+    test(S("ahlcifdqgs"), "trqihkcgsjamfdbolnpe", 9, 0, S::npos);
+    test(S("bgjemaltks"), "lqmthbsrekajgnofcipd", 9, 1, 6);
+    test(S("pdhslbqrfc"), "jtalmedribkgqsopcnfh", 9, 10, 7);
+    test(S("dirhtsnjkc"), "spqfoiclmtagejbndkrh", 9, 19, 9);
+    test(S("dlroktbcja"), "nmotklspigjrdhcfaebq", 9, 20, 9);
+    test(S("ncjpmaekbs"), "", 10, 0, S::npos);
+    test(S("hlbosgmrak"), "hpmsd", 10, 0, S::npos);
+    test(S("pqfhsgilen"), "qnpor", 10, 1, 1);
+    test(S("gqtjsbdckh"), "otdma", 10, 2, 2);
+    test(S("cfkqpjlegi"), "efhjg", 10, 4, 7);
+    test(S("beanrfodgj"), "odpte", 10, 5, 7);
+    test(S("adtkqpbjfi"), "bctdgfmolr", 10, 0, S::npos);
+    test(S("iomkfthagj"), "oaklidrbqg", 10, 1, 1);
+}
+
+template <class S>
+void test2()
+{
+    test(S("sdpcilonqj"), "dnjfsagktr", 10, 5, 9);
+    test(S("gtfbdkqeml"), "nejaktmiqg", 10, 9, 8);
+    test(S("bmeqgcdorj"), "pjqonlebsf", 10, 10, 9);
+    test(S("etqlcanmob"), "dshmnbtolcjepgaikfqr", 10, 0, S::npos);
+    test(S("roqmkbdtia"), "iogfhpabtjkqlrnemcds", 10, 1, 8);
+    test(S("kadsithljf"), "ngridfabjsecpqltkmoh", 10, 10, 9);
+    test(S("sgtkpbfdmh"), "athmknplcgofrqejsdib", 10, 19, 9);
+    test(S("qgmetnabkl"), "ldobhmqcafnjtkeisgrp", 10, 20, 9);
+    test(S("cqjohampgd"), "", 11, 0, S::npos);
+    test(S("hobitmpsan"), "aocjb", 11, 0, S::npos);
+    test(S("tjehkpsalm"), "jbrnk", 11, 1, 1);
+    test(S("ngfbojitcl"), "tqedg", 11, 2, 7);
+    test(S("rcfkdbhgjo"), "nqskp", 11, 4, 3);
+    test(S("qghptonrea"), "eaqkl", 11, 5, 9);
+    test(S("hnprfgqjdl"), "reaoicljqm", 11, 0, S::npos);
+    test(S("hlmgabenti"), "lsftgajqpm", 11, 1, 1);
+    test(S("ofcjanmrbs"), "rlpfogmits", 11, 5, 7);
+    test(S("jqedtkornm"), "shkncmiaqj", 11, 9, 9);
+    test(S("rfedlasjmg"), "fpnatrhqgs", 11, 10, 9);
+    test(S("talpqjsgkm"), "sjclemqhnpdbgikarfot", 11, 0, S::npos);
+    test(S("lrkcbtqpie"), "otcmedjikgsfnqbrhpla", 11, 1, S::npos);
+    test(S("cipogdskjf"), "bonsaefdqiprkhlgtjcm", 11, 10, 9);
+    test(S("nqedcojahi"), "egpscmahijlfnkrodqtb", 11, 19, 9);
+    test(S("hefnrkmctj"), "kmqbfepjthgilscrndoa", 11, 20, 9);
+    test(S("atqirnmekfjolhpdsgcb"), "", 0, 0, S::npos);
+    test(S("echfkmlpribjnqsaogtd"), "prboq", 0, 0, S::npos);
+    test(S("qnhiftdgcleajbpkrosm"), "fjcqh", 0, 1, S::npos);
+    test(S("chamfknorbedjitgslpq"), "fmosa", 0, 2, S::npos);
+    test(S("njhqpibfmtlkaecdrgso"), "qdbok", 0, 4, S::npos);
+    test(S("ebnghfsqkprmdcljoiat"), "amslg", 0, 5, S::npos);
+    test(S("letjomsgihfrpqbkancd"), "smpltjneqb", 0, 0, S::npos);
+    test(S("nblgoipcrqeaktshjdmf"), "flitskrnge", 0, 1, S::npos);
+    test(S("cehkbngtjoiflqapsmrd"), "pgqihmlbef", 0, 5, S::npos);
+    test(S("mignapfoklbhcqjetdrs"), "cfpdqjtgsb", 0, 9, S::npos);
+    test(S("ceatbhlsqjgpnokfrmdi"), "htpsiaflom", 0, 10, S::npos);
+    test(S("ocihkjgrdelpfnmastqb"), "kpjfiaceghsrdtlbnomq", 0, 0, S::npos);
+    test(S("noelgschdtbrjfmiqkap"), "qhtbomidljgafneksprc", 0, 1, S::npos);
+    test(S("dkclqfombepritjnghas"), "nhtjobkcefldimpsaqgr", 0, 10, S::npos);
+    test(S("miklnresdgbhqcojftap"), "prabcjfqnoeskilmtgdh", 0, 19, 0);
+    test(S("htbcigojaqmdkfrnlsep"), "dtrgmchilkasqoebfpjn", 0, 20, 0);
+    test(S("febhmqtjanokscdirpgl"), "", 1, 0, S::npos);
+    test(S("loakbsqjpcrdhftniegm"), "sqome", 1, 0, S::npos);
+    test(S("reagphsqflbitdcjmkno"), "smfte", 1, 1, S::npos);
+    test(S("jitlfrqemsdhkopncabg"), "ciboh", 1, 2, 1);
+    test(S("mhtaepscdnrjqgbkifol"), "haois", 1, 4, 1);
+    test(S("tocesrfmnglpbjihqadk"), "abfki", 1, 5, S::npos);
+    test(S("lpfmctjrhdagneskbqoi"), "frdkocntmq", 1, 0, S::npos);
+    test(S("lsmqaepkdhncirbtjfgo"), "oasbpedlnr", 1, 1, S::npos);
+    test(S("epoiqmtldrabnkjhcfsg"), "kltqmhgand", 1, 5, S::npos);
+    test(S("emgasrilpknqojhtbdcf"), "gdtfjchpmr", 1, 9, 1);
+    test(S("hnfiagdpcklrjetqbsom"), "ponmcqblet", 1, 10, 1);
+    test(S("nsdfebgajhmtricpoklq"), "sgphqdnofeiklatbcmjr", 1, 0, S::npos);
+    test(S("atjgfsdlpobmeiqhncrk"), "ljqprsmigtfoneadckbh", 1, 1, S::npos);
+    test(S("sitodfgnrejlahcbmqkp"), "ligeojhafnkmrcsqtbdp", 1, 10, 1);
+    test(S("fraghmbiceknltjpqosd"), "lsimqfnjarbopedkhcgt", 1, 19, 1);
+    test(S("pmafenlhqtdbkirjsogc"), "abedmfjlghniorcqptks", 1, 20, 1);
+    test(S("pihgmoeqtnakrjslcbfd"), "", 10, 0, S::npos);
+    test(S("gjdkeprctqblnhiafsom"), "hqtoa", 10, 0, S::npos);
+    test(S("mkpnblfdsahrcqijteog"), "cahif", 10, 1, S::npos);
+    test(S("gckarqnelodfjhmbptis"), "kehis", 10, 2, 7);
+    test(S("gqpskidtbclomahnrjfe"), "kdlmh", 10, 4, 10);
+    test(S("pkldjsqrfgitbhmaecno"), "paeql", 10, 5, 6);
+    test(S("aftsijrbeklnmcdqhgop"), "aghoqiefnb", 10, 0, S::npos);
+    test(S("mtlgdrhafjkbiepqnsoc"), "jrbqaikpdo", 10, 1, 9);
+    test(S("pqgirnaefthokdmbsclj"), "smjonaeqcl", 10, 5, 5);
+    test(S("kpdbgjmtherlsfcqoina"), "eqbdrkcfah", 10, 9, 10);
+    test(S("jrlbothiknqmdgcfasep"), "kapmsienhf", 10, 10, 9);
+    test(S("mjogldqferckabinptsh"), "jpqotrlenfcsbhkaimdg", 10, 0, S::npos);
+    test(S("apoklnefbhmgqcdrisjt"), "jlbmhnfgtcqprikeados", 10, 1, S::npos);
+    test(S("ifeopcnrjbhkdgatmqls"), "stgbhfmdaljnpqoicker", 10, 10, 10);
+    test(S("ckqhaiesmjdnrgolbtpf"), "oihcetflbjagdsrkmqpn", 10, 19, 10);
+    test(S("bnlgapfimcoterskqdjh"), "adtclebmnpjsrqfkigoh", 10, 20, 10);
+    test(S("kgdlrobpmjcthqsafeni"), "", 19, 0, S::npos);
+    test(S("dfkechomjapgnslbtqir"), "beafg", 19, 0, S::npos);
+    test(S("rloadknfbqtgmhcsipje"), "iclat", 19, 1, 16);
+    test(S("mgjhkolrnadqbpetcifs"), "rkhnf", 19, 2, 7);
+    test(S("cmlfakiojdrgtbsphqen"), "clshq", 19, 4, 16);
+    test(S("kghbfipeomsntdalrqjc"), "dtcoj", 19, 5, 19);
+    test(S("eldiqckrnmtasbghjfpo"), "rqosnjmfth", 19, 0, S::npos);
+    test(S("abqjcfedgotihlnspkrm"), "siatdfqglh", 19, 1, 15);
+    test(S("qfbadrtjsimkolcenhpg"), "mrlshtpgjq", 19, 5, 17);
+    test(S("abseghclkjqifmtodrnp"), "adlcskgqjt", 19, 9, 16);
+    test(S("ibmsnlrjefhtdokacqpg"), "drshcjknaf", 19, 10, 16);
+    test(S("mrkfciqjebaponsthldg"), "etsaqroinghpkjdlfcbm", 19, 0, S::npos);
+    test(S("mjkticdeoqshpalrfbgn"), "sgepdnkqliambtrocfhj", 19, 1, 10);
+    test(S("rqnoclbdejgiphtfsakm"), "nlmcjaqgbsortfdihkpe", 19, 10, 19);
+    test(S("plkqbhmtfaeodjcrsing"), "racfnpmosldibqkghjet", 19, 19, 19);
+    test(S("oegalhmstjrfickpbndq"), "fjhdsctkqeiolagrnmbp", 19, 20, 19);
+    test(S("rdtgjcaohpblniekmsfq"), "", 20, 0, S::npos);
+    test(S("ofkqbnjetrmsaidphglc"), "ejanp", 20, 0, S::npos);
+    test(S("grkpahljcftesdmonqib"), "odife", 20, 1, 15);
+    test(S("jimlgbhfqkteospardcn"), "okaqd", 20, 2, 12);
+    test(S("gftenihpmslrjkqadcob"), "lcdbi", 20, 4, 19);
+    test(S("bmhldogtckrfsanijepq"), "fsqbj", 20, 5, 19);
+    test(S("nfqkrpjdesabgtlcmoih"), "bigdomnplq", 20, 0, S::npos);
+    test(S("focalnrpiqmdkstehbjg"), "apiblotgcd", 20, 1, 3);
+    test(S("rhqdspkmebiflcotnjga"), "acfhdenops", 20, 5, 19);
+    test(S("rahdtmsckfboqlpniegj"), "jopdeamcrk", 20, 9, 19);
+    test(S("fbkeiopclstmdqranjhg"), "trqncbkgmh", 20, 10, 19);
+    test(S("lifhpdgmbconstjeqark"), "tomglrkencbsfjqpihda", 20, 0, S::npos);
+}
+
+template <class S>
+void test3()
+{
+    test(S("pboqganrhedjmltsicfk"), "gbkhdnpoietfcmrslajq", 20, 1, 4);
+    test(S("klchabsimetjnqgorfpd"), "rtfnmbsglkjaichoqedp", 20, 10, 17);
+    test(S("sirfgmjqhctndbklaepo"), "ohkmdpfqbsacrtjnlgei", 20, 19, 19);
+    test(S("rlbdsiceaonqjtfpghkm"), "dlbrteoisgphmkncajfq", 20, 20, 19);
+    test(S("ecgdanriptblhjfqskom"), "", 21, 0, S::npos);
+    test(S("fdmiarlpgcskbhoteqjn"), "sjrlo", 21, 0, S::npos);
+    test(S("rlbstjqopignecmfadkh"), "qjpor", 21, 1, 6);
+    test(S("grjpqmbshektdolcafni"), "odhfn", 21, 2, 13);
+    test(S("sakfcohtqnibprjmlged"), "qtfin", 21, 4, 10);
+    test(S("mjtdglasihqpocebrfkn"), "hpqfo", 21, 5, 17);
+    test(S("okaplfrntghqbmeicsdj"), "fabmertkos", 21, 0, S::npos);
+    test(S("sahngemrtcjidqbklfpo"), "brqtgkmaej", 21, 1, 14);
+    test(S("dlmsipcnekhbgoaftqjr"), "nfrdeihsgl", 21, 5, 19);
+    test(S("ahegrmqnoiklpfsdbcjt"), "hlfrosekpi", 21, 9, 14);
+    test(S("hdsjbnmlegtkqripacof"), "atgbkrjdsm", 21, 10, 16);
+    test(S("pcnedrfjihqbalkgtoms"), "blnrptjgqmaifsdkhoec", 21, 0, S::npos);
+    test(S("qjidealmtpskrbfhocng"), "ctpmdahebfqjgknloris", 21, 1, 17);
+    test(S("qeindtagmokpfhsclrbj"), "apnkeqthrmlbfodiscgj", 21, 10, 17);
+    test(S("kpfegbjhsrnodltqciam"), "jdgictpframeoqlsbknh", 21, 19, 19);
+    test(S("hnbrcplsjfgiktoedmaq"), "qprlsfojamgndekthibc", 21, 20, 19);
+}
+
+int main()
+{
+    {
+    typedef std::experimental::string_view S;
+    test0<S>();
+    test1<S>();
+    test2<S>();
+    test3<S>();
+    }
+
+#if _LIBCPP_STD_VER > 11
+    {
+    typedef std::experimental::basic_string_view<char, constexpr_char_traits<char>> SV;
+    constexpr SV  sv1;
+    constexpr SV  sv2 { "abcde", 5 };
+
+    static_assert (sv1.find_last_of( "",      0, 0) == SV::npos, "" );
+    static_assert (sv1.find_last_of( "irkhs", 0, 5) == SV::npos, "" );
+    static_assert (sv2.find_last_of( "",      0, 0) == SV::npos, "" );
+    static_assert (sv2.find_last_of( "gfsrt", 5, 5) == SV::npos, "" );
+    static_assert (sv2.find_last_of( "lecar", 5, 5) == 4, "" );
+    }
+#endif
+}

Added: libcxx/trunk/test/std/experimental/string.view/string.view.find/find_last_of_string_view_size.pass.cpp
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/test/std/experimental/string.view/string.view.find/find_last_of_string_view_size.pass.cpp?rev=224658&view=auto
==============================================================================
--- libcxx/trunk/test/std/experimental/string.view/string.view.find/find_last_of_string_view_size.pass.cpp (added)
+++ libcxx/trunk/test/std/experimental/string.view/string.view.find/find_last_of_string_view_size.pass.cpp Fri Dec 19 19:40:03 2014
@@ -0,0 +1,148 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <string_view>
+
+// size_type find_last_of(const basic_string& str, size_type pos = npos) const;
+
+#include <experimental/string_view>
+#include <cassert>
+
+template <class S>
+void
+test(const S& s, const S& str, typename S::size_type pos, typename S::size_type x)
+{
+    assert(s.find_last_of(str, pos) == x);
+    if (x != S::npos)
+        assert(x <= pos && x < s.size());
+}
+
+template <class S>
+void
+test(const S& s, const S& str, typename S::size_type x)
+{
+    assert(s.find_last_of(str) == x);
+    if (x != S::npos)
+        assert(x < s.size());
+}
+
+template <class S>
+void test0()
+{
+    test(S(""), S(""), 0, S::npos);
+    test(S(""), S("laenf"), 0, S::npos);
+    test(S(""), S("pqlnkmbdjo"), 0, S::npos);
+    test(S(""), S("qkamfogpnljdcshbreti"), 0, S::npos);
+    test(S(""), S(""), 1, S::npos);
+    test(S(""), S("bjaht"), 1, S::npos);
+    test(S(""), S("hjlcmgpket"), 1, S::npos);
+    test(S(""), S("htaobedqikfplcgjsmrn"), 1, S::npos);
+    test(S("fodgq"), S(""), 0, S::npos);
+    test(S("qanej"), S("dfkap"), 0, S::npos);
+    test(S("clbao"), S("ihqrfebgad"), 0, S::npos);
+    test(S("mekdn"), S("ngtjfcalbseiqrphmkdo"), 0, 0);
+    test(S("srdfq"), S(""), 1, S::npos);
+    test(S("oemth"), S("ikcrq"), 1, S::npos);
+    test(S("cdaih"), S("dmajblfhsg"), 1, 1);
+    test(S("qohtk"), S("oqftjhdmkgsblacenirp"), 1, 1);
+    test(S("cshmd"), S(""), 2, S::npos);
+    test(S("lhcdo"), S("oebqi"), 2, S::npos);
+    test(S("qnsoh"), S("kojhpmbsfe"), 2, 2);
+    test(S("pkrof"), S("acbsjqogpltdkhinfrem"), 2, 2);
+    test(S("fmtsp"), S(""), 4, S::npos);
+    test(S("khbpm"), S("aobjd"), 4, 2);
+    test(S("pbsji"), S("pcbahntsje"), 4, 3);
+    test(S("mprdj"), S("fhepcrntkoagbmldqijs"), 4, 4);
+    test(S("eqmpa"), S(""), 5, S::npos);
+    test(S("omigs"), S("kocgb"), 5, 3);
+    test(S("onmje"), S("fbslrjiqkm"), 5, 3);
+    test(S("oqmrj"), S("jeidpcmalhfnqbgtrsko"), 5, 4);
+    test(S("schfa"), S(""), 6, S::npos);
+    test(S("igdsc"), S("qngpd"), 6, 2);
+    test(S("brqgo"), S("rodhqklgmb"), 6, 4);
+    test(S("tnrph"), S("thdjgafrlbkoiqcspmne"), 6, 4);
+    test(S("hcjitbfapl"), S(""), 0, S::npos);
+    test(S("daiprenocl"), S("ashjd"), 0, 0);
+    test(S("litpcfdghe"), S("mgojkldsqh"), 0, 0);
+    test(S("aidjksrolc"), S("imqnaghkfrdtlopbjesc"), 0, 0);
+    test(S("qpghtfbaji"), S(""), 1, S::npos);
+    test(S("gfshlcmdjr"), S("nadkh"), 1, S::npos);
+    test(S("nkodajteqp"), S("ofdrqmkebl"), 1, 1);
+    test(S("gbmetiprqd"), S("bdfjqgatlksriohemnpc"), 1, 1);
+    test(S("crnklpmegd"), S(""), 5, S::npos);
+    test(S("jsbtafedoc"), S("prqgn"), 5, S::npos);
+    test(S("qnmodrtkeb"), S("pejafmnokr"), 5, 5);
+    test(S("cpebqsfmnj"), S("odnqkgijrhabfmcestlp"), 5, 5);
+    test(S("lmofqdhpki"), S(""), 9, S::npos);
+    test(S("hnefkqimca"), S("rtjpa"), 9, 9);
+    test(S("drtasbgmfp"), S("ktsrmnqagd"), 9, 7);
+    test(S("lsaijeqhtr"), S("rtdhgcisbnmoaqkfpjle"), 9, 9);
+    test(S("elgofjmbrq"), S(""), 10, S::npos);
+    test(S("mjqdgalkpc"), S("dplqa"), 10, 8);
+    test(S("kthqnfcerm"), S("dkacjoptns"), 10, 6);
+    test(S("dfsjhanorc"), S("hqfimtrgnbekpdcsjalo"), 10, 9);
+    test(S("eqsgalomhb"), S(""), 11, S::npos);
+    test(S("akiteljmoh"), S("lofbc"), 11, 8);
+    test(S("hlbdfreqjo"), S("astoegbfpn"), 11, 9);
+    test(S("taqobhlerg"), S("pdgreqomsncafklhtibj"), 11, 9);
+    test(S("snafbdlghrjkpqtoceim"), S(""), 0, S::npos);
+    test(S("aemtbrgcklhndjisfpoq"), S("lbtqd"), 0, S::npos);
+    test(S("pnracgfkjdiholtbqsem"), S("tboimldpjh"), 0, 0);
+    test(S("dicfltehbsgrmojnpkaq"), S("slcerthdaiqjfnobgkpm"), 0, 0);
+    test(S("jlnkraeodhcspfgbqitm"), S(""), 1, S::npos);
+    test(S("lhosrngtmfjikbqpcade"), S("aqibs"), 1, S::npos);
+    test(S("rbtaqjhgkneisldpmfoc"), S("gtfblmqinc"), 1, 1);
+    test(S("gpifsqlrdkbonjtmheca"), S("mkqpbtdalgniorhfescj"), 1, 1);
+    test(S("hdpkobnsalmcfijregtq"), S(""), 10, S::npos);
+    test(S("jtlshdgqaiprkbcoenfm"), S("pblas"), 10, 10);
+    test(S("fkdrbqltsgmcoiphneaj"), S("arosdhcfme"), 10, 10);
+    test(S("crsplifgtqedjohnabmk"), S("blkhjeogicatqfnpdmsr"), 10, 10);
+    test(S("niptglfbosehkamrdqcj"), S(""), 19, S::npos);
+    test(S("copqdhstbingamjfkler"), S("djkqc"), 19, 16);
+    test(S("mrtaefilpdsgocnhqbjk"), S("lgokshjtpb"), 19, 19);
+    test(S("kojatdhlcmigpbfrqnes"), S("bqjhtkfepimcnsgrlado"), 19, 19);
+    test(S("eaintpchlqsbdgrkjofm"), S(""), 20, S::npos);
+    test(S("gjnhidfsepkrtaqbmclo"), S("nocfa"), 20, 19);
+    test(S("spocfaktqdbiejlhngmr"), S("bgtajmiedc"), 20, 18);
+    test(S("rphmlekgfscndtaobiqj"), S("lsckfnqgdahejiopbtmr"), 20, 19);
+    test(S("liatsqdoegkmfcnbhrpj"), S(""), 21, S::npos);
+    test(S("binjagtfldkrspcomqeh"), S("gfsrt"), 21, 12);
+    test(S("latkmisecnorjbfhqpdg"), S("pfsocbhjtm"), 21, 17);
+    test(S("lecfratdjkhnsmqpoigb"), S("tpflmdnoicjgkberhqsa"), 21, 19);
+}
+
+template <class S>
+void test1()
+{
+    test(S(""), S(""), S::npos);
+    test(S(""), S("laenf"), S::npos);
+    test(S(""), S("pqlnkmbdjo"), S::npos);
+    test(S(""), S("qkamfogpnljdcshbreti"), S::npos);
+    test(S("nhmko"), S(""), S::npos);
+    test(S("lahfb"), S("irkhs"), 2);
+    test(S("gmfhd"), S("kantesmpgj"), 1);
+    test(S("odaft"), S("oknlrstdpiqmjbaghcfe"), 4);
+    test(S("eolhfgpjqk"), S(""), S::npos);
+    test(S("nbatdlmekr"), S("bnrpe"), 9);
+    test(S("jdmciepkaq"), S("jtdaefblso"), 8);
+    test(S("hkbgspoflt"), S("oselktgbcapndfjihrmq"), 9);
+    test(S("gprdcokbnjhlsfmtieqa"), S(""), S::npos);
+    test(S("qjghlnftcaismkropdeb"), S("bjaht"), 19);
+    test(S("pnalfrdtkqcmojiesbhg"), S("hjlcmgpket"), 19);
+    test(S("pniotcfrhqsmgdkjbael"), S("htaobedqikfplcgjsmrn"), 19);
+}
+
+int main()
+{
+    {
+    typedef std::experimental::string_view S;
+    test0<S>();
+    test1<S>();
+    }
+}

Added: libcxx/trunk/test/std/experimental/string.view/string.view.find/find_pointer_size.pass.cpp
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/test/std/experimental/string.view/string.view.find/find_pointer_size.pass.cpp?rev=224658&view=auto
==============================================================================
--- libcxx/trunk/test/std/experimental/string.view/string.view.find/find_pointer_size.pass.cpp (added)
+++ libcxx/trunk/test/std/experimental/string.view/string.view.find/find_pointer_size.pass.cpp Fri Dec 19 19:40:03 2014
@@ -0,0 +1,171 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <string>
+
+// constexpr size_type find(const charT* s, size_type pos = 0) const;
+
+#include <experimental/string_view>
+#include <cassert>
+
+#include "constexpr_char_traits.hpp"
+
+template <class S>
+void
+test(const S& s, const typename S::value_type* str, typename S::size_type pos,
+     typename S::size_type x)
+{
+    assert(s.find(str, pos) == x);
+    if (x != S::npos)
+    {
+        typename S::size_type n = S::traits_type::length(str);
+        assert(pos <= x && x + n <= s.size());
+    }
+}
+
+template <class S>
+void
+test(const S& s, const typename S::value_type* str, typename S::size_type x)
+{
+    assert(s.find(str) == x);
+    if (x != S::npos)
+    {
+        typename S::size_type n = S::traits_type::length(str);
+        assert(0 <= x && x + n <= s.size());
+    }
+}
+
+template <class S>
+void test0()
+{
+    test(S(""), "", 0, 0);
+    test(S(""), "abcde", 0, S::npos);
+    test(S(""), "abcdeabcde", 0, S::npos);
+    test(S(""), "abcdeabcdeabcdeabcde", 0, S::npos);
+    test(S(""), "", 1, S::npos);
+    test(S(""), "abcde", 1, S::npos);
+    test(S(""), "abcdeabcde", 1, S::npos);
+    test(S(""), "abcdeabcdeabcdeabcde", 1, S::npos);
+    test(S("abcde"), "", 0, 0);
+    test(S("abcde"), "abcde", 0, 0);
+    test(S("abcde"), "abcdeabcde", 0, S::npos);
+    test(S("abcde"), "abcdeabcdeabcdeabcde", 0, S::npos);
+    test(S("abcde"), "", 1, 1);
+    test(S("abcde"), "abcde", 1, S::npos);
+    test(S("abcde"), "abcdeabcde", 1, S::npos);
+    test(S("abcde"), "abcdeabcdeabcdeabcde", 1, S::npos);
+    test(S("abcde"), "", 2, 2);
+    test(S("abcde"), "abcde", 2, S::npos);
+    test(S("abcde"), "abcdeabcde", 2, S::npos);
+    test(S("abcde"), "abcdeabcdeabcdeabcde", 2, S::npos);
+    test(S("abcde"), "", 4, 4);
+    test(S("abcde"), "abcde", 4, S::npos);
+    test(S("abcde"), "abcdeabcde", 4, S::npos);
+    test(S("abcde"), "abcdeabcdeabcdeabcde", 4, S::npos);
+    test(S("abcde"), "", 5, 5);
+    test(S("abcde"), "abcde", 5, S::npos);
+    test(S("abcde"), "abcdeabcde", 5, S::npos);
+    test(S("abcde"), "abcdeabcdeabcdeabcde", 5, S::npos);
+    test(S("abcde"), "", 6, S::npos);
+    test(S("abcde"), "abcde", 6, S::npos);
+    test(S("abcde"), "abcdeabcde", 6, S::npos);
+    test(S("abcde"), "abcdeabcdeabcdeabcde", 6, S::npos);
+    test(S("abcdeabcde"), "", 0, 0);
+    test(S("abcdeabcde"), "abcde", 0, 0);
+    test(S("abcdeabcde"), "abcdeabcde", 0, 0);
+    test(S("abcdeabcde"), "abcdeabcdeabcdeabcde", 0, S::npos);
+    test(S("abcdeabcde"), "", 1, 1);
+    test(S("abcdeabcde"), "abcde", 1, 5);
+    test(S("abcdeabcde"), "abcdeabcde", 1, S::npos);
+    test(S("abcdeabcde"), "abcdeabcdeabcdeabcde", 1, S::npos);
+    test(S("abcdeabcde"), "", 5, 5);
+    test(S("abcdeabcde"), "abcde", 5, 5);
+    test(S("abcdeabcde"), "abcdeabcde", 5, S::npos);
+    test(S("abcdeabcde"), "abcdeabcdeabcdeabcde", 5, S::npos);
+    test(S("abcdeabcde"), "", 9, 9);
+    test(S("abcdeabcde"), "abcde", 9, S::npos);
+    test(S("abcdeabcde"), "abcdeabcde", 9, S::npos);
+    test(S("abcdeabcde"), "abcdeabcdeabcdeabcde", 9, S::npos);
+    test(S("abcdeabcde"), "", 10, 10);
+    test(S("abcdeabcde"), "abcde", 10, S::npos);
+    test(S("abcdeabcde"), "abcdeabcde", 10, S::npos);
+    test(S("abcdeabcde"), "abcdeabcdeabcdeabcde", 10, S::npos);
+    test(S("abcdeabcde"), "", 11, S::npos);
+    test(S("abcdeabcde"), "abcde", 11, S::npos);
+    test(S("abcdeabcde"), "abcdeabcde", 11, S::npos);
+    test(S("abcdeabcde"), "abcdeabcdeabcdeabcde", 11, S::npos);
+    test(S("abcdeabcdeabcdeabcde"), "", 0, 0);
+    test(S("abcdeabcdeabcdeabcde"), "abcde", 0, 0);
+    test(S("abcdeabcdeabcdeabcde"), "abcdeabcde", 0, 0);
+    test(S("abcdeabcdeabcdeabcde"), "abcdeabcdeabcdeabcde", 0, 0);
+    test(S("abcdeabcdeabcdeabcde"), "", 1, 1);
+    test(S("abcdeabcdeabcdeabcde"), "abcde", 1, 5);
+    test(S("abcdeabcdeabcdeabcde"), "abcdeabcde", 1, 5);
+    test(S("abcdeabcdeabcdeabcde"), "abcdeabcdeabcdeabcde", 1, S::npos);
+    test(S("abcdeabcdeabcdeabcde"), "", 10, 10);
+    test(S("abcdeabcdeabcdeabcde"), "abcde", 10, 10);
+    test(S("abcdeabcdeabcdeabcde"), "abcdeabcde", 10, 10);
+    test(S("abcdeabcdeabcdeabcde"), "abcdeabcdeabcdeabcde", 10, S::npos);
+    test(S("abcdeabcdeabcdeabcde"), "", 19, 19);
+    test(S("abcdeabcdeabcdeabcde"), "abcde", 19, S::npos);
+    test(S("abcdeabcdeabcdeabcde"), "abcdeabcde", 19, S::npos);
+    test(S("abcdeabcdeabcdeabcde"), "abcdeabcdeabcdeabcde", 19, S::npos);
+    test(S("abcdeabcdeabcdeabcde"), "", 20, 20);
+    test(S("abcdeabcdeabcdeabcde"), "abcde", 20, S::npos);
+    test(S("abcdeabcdeabcdeabcde"), "abcdeabcde", 20, S::npos);
+    test(S("abcdeabcdeabcdeabcde"), "abcdeabcdeabcdeabcde", 20, S::npos);
+    test(S("abcdeabcdeabcdeabcde"), "", 21, S::npos);
+    test(S("abcdeabcdeabcdeabcde"), "abcde", 21, S::npos);
+    test(S("abcdeabcdeabcdeabcde"), "abcdeabcde", 21, S::npos);
+    test(S("abcdeabcdeabcdeabcde"), "abcdeabcdeabcdeabcde", 21, S::npos);
+}
+
+template <class S>
+void test1()
+{
+    test(S(""), "", 0);
+    test(S(""), "abcde", S::npos);
+    test(S(""), "abcdeabcde", S::npos);
+    test(S(""), "abcdeabcdeabcdeabcde", S::npos);
+    test(S("abcde"), "", 0);
+    test(S("abcde"), "abcde", 0);
+    test(S("abcde"), "abcdeabcde", S::npos);
+    test(S("abcde"), "abcdeabcdeabcdeabcde", S::npos);
+    test(S("abcdeabcde"), "", 0);
+    test(S("abcdeabcde"), "abcde", 0);
+    test(S("abcdeabcde"), "abcdeabcde", 0);
+    test(S("abcdeabcde"), "abcdeabcdeabcdeabcde", S::npos);
+    test(S("abcdeabcdeabcdeabcde"), "", 0);
+    test(S("abcdeabcdeabcdeabcde"), "abcde", 0);
+    test(S("abcdeabcdeabcdeabcde"), "abcdeabcde", 0);
+    test(S("abcdeabcdeabcdeabcde"), "abcdeabcdeabcdeabcde", 0);
+}
+
+int main()
+{
+    {
+    typedef std::experimental::string_view S;
+    test0<S>();
+    test1<S>();
+    }
+
+#if _LIBCPP_STD_VER > 11
+    {
+    typedef std::experimental::basic_string_view<char, constexpr_char_traits<char>> SV;
+    constexpr SV  sv1;
+    constexpr SV  sv2 { "abcde", 5 };
+
+    static_assert (sv1.find( "") == 0, "" );
+    static_assert (sv1.find( "abcde") == SV::npos, "" );
+    static_assert (sv2.find( "") == 0, "" );
+    static_assert (sv2.find( "abcde") == 0, "" );
+    static_assert (sv2.find( "abcde", 1) == SV::npos, "" );
+    }
+#endif
+}

Added: libcxx/trunk/test/std/experimental/string.view/string.view.find/find_pointer_size_size.pass.cpp
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/test/std/experimental/string.view/string.view.find/find_pointer_size_size.pass.cpp?rev=224658&view=auto
==============================================================================
--- libcxx/trunk/test/std/experimental/string.view/string.view.find/find_pointer_size_size.pass.cpp (added)
+++ libcxx/trunk/test/std/experimental/string.view/string.view.find/find_pointer_size_size.pass.cpp Fri Dec 19 19:40:03 2014
@@ -0,0 +1,393 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <string_view>
+
+// constexpr size_type find(const charT* s, size_type pos, size_type n) const;
+
+#include <experimental/string_view>
+#include <cassert>
+
+#include "constexpr_char_traits.hpp"
+
+template <class S>
+void
+test(const S& s, const typename S::value_type* str, typename S::size_type pos,
+     typename S::size_type n, typename S::size_type x)
+{
+    assert(s.find(str, pos, n) == x);
+    if (x != S::npos)
+        assert(pos <= x && x + n <= s.size());
+}
+
+template <class S>
+void test0()
+{
+    test(S(""), "", 0, 0, 0);
+    test(S(""), "abcde", 0, 0, 0);
+    test(S(""), "abcde", 0, 1, S::npos);
+    test(S(""), "abcde", 0, 2, S::npos);
+    test(S(""), "abcde", 0, 4, S::npos);
+    test(S(""), "abcde", 0, 5, S::npos);
+    test(S(""), "abcdeabcde", 0, 0, 0);
+    test(S(""), "abcdeabcde", 0, 1, S::npos);
+    test(S(""), "abcdeabcde", 0, 5, S::npos);
+    test(S(""), "abcdeabcde", 0, 9, S::npos);
+    test(S(""), "abcdeabcde", 0, 10, S::npos);
+    test(S(""), "abcdeabcdeabcdeabcde", 0, 0, 0);
+    test(S(""), "abcdeabcdeabcdeabcde", 0, 1, S::npos);
+    test(S(""), "abcdeabcdeabcdeabcde", 0, 10, S::npos);
+    test(S(""), "abcdeabcdeabcdeabcde", 0, 19, S::npos);
+    test(S(""), "abcdeabcdeabcdeabcde", 0, 20, S::npos);
+    test(S(""), "", 1, 0, S::npos);
+    test(S(""), "abcde", 1, 0, S::npos);
+    test(S(""), "abcde", 1, 1, S::npos);
+    test(S(""), "abcde", 1, 2, S::npos);
+    test(S(""), "abcde", 1, 4, S::npos);
+    test(S(""), "abcde", 1, 5, S::npos);
+    test(S(""), "abcdeabcde", 1, 0, S::npos);
+    test(S(""), "abcdeabcde", 1, 1, S::npos);
+    test(S(""), "abcdeabcde", 1, 5, S::npos);
+    test(S(""), "abcdeabcde", 1, 9, S::npos);
+    test(S(""), "abcdeabcde", 1, 10, S::npos);
+    test(S(""), "abcdeabcdeabcdeabcde", 1, 0, S::npos);
+    test(S(""), "abcdeabcdeabcdeabcde", 1, 1, S::npos);
+    test(S(""), "abcdeabcdeabcdeabcde", 1, 10, S::npos);
+    test(S(""), "abcdeabcdeabcdeabcde", 1, 19, S::npos);
+    test(S(""), "abcdeabcdeabcdeabcde", 1, 20, S::npos);
+    test(S("abcde"), "", 0, 0, 0);
+    test(S("abcde"), "abcde", 0, 0, 0);
+    test(S("abcde"), "abcde", 0, 1, 0);
+    test(S("abcde"), "abcde", 0, 2, 0);
+    test(S("abcde"), "abcde", 0, 4, 0);
+    test(S("abcde"), "abcde", 0, 5, 0);
+    test(S("abcde"), "abcdeabcde", 0, 0, 0);
+    test(S("abcde"), "abcdeabcde", 0, 1, 0);
+    test(S("abcde"), "abcdeabcde", 0, 5, 0);
+    test(S("abcde"), "abcdeabcde", 0, 9, S::npos);
+    test(S("abcde"), "abcdeabcde", 0, 10, S::npos);
+    test(S("abcde"), "abcdeabcdeabcdeabcde", 0, 0, 0);
+    test(S("abcde"), "abcdeabcdeabcdeabcde", 0, 1, 0);
+    test(S("abcde"), "abcdeabcdeabcdeabcde", 0, 10, S::npos);
+    test(S("abcde"), "abcdeabcdeabcdeabcde", 0, 19, S::npos);
+    test(S("abcde"), "abcdeabcdeabcdeabcde", 0, 20, S::npos);
+    test(S("abcde"), "", 1, 0, 1);
+    test(S("abcde"), "abcde", 1, 0, 1);
+    test(S("abcde"), "abcde", 1, 1, S::npos);
+    test(S("abcde"), "abcde", 1, 2, S::npos);
+    test(S("abcde"), "abcde", 1, 4, S::npos);
+    test(S("abcde"), "abcde", 1, 5, S::npos);
+    test(S("abcde"), "abcdeabcde", 1, 0, 1);
+    test(S("abcde"), "abcdeabcde", 1, 1, S::npos);
+    test(S("abcde"), "abcdeabcde", 1, 5, S::npos);
+    test(S("abcde"), "abcdeabcde", 1, 9, S::npos);
+    test(S("abcde"), "abcdeabcde", 1, 10, S::npos);
+    test(S("abcde"), "abcdeabcdeabcdeabcde", 1, 0, 1);
+    test(S("abcde"), "abcdeabcdeabcdeabcde", 1, 1, S::npos);
+    test(S("abcde"), "abcdeabcdeabcdeabcde", 1, 10, S::npos);
+    test(S("abcde"), "abcdeabcdeabcdeabcde", 1, 19, S::npos);
+    test(S("abcde"), "abcdeabcdeabcdeabcde", 1, 20, S::npos);
+    test(S("abcde"), "", 2, 0, 2);
+    test(S("abcde"), "abcde", 2, 0, 2);
+    test(S("abcde"), "abcde", 2, 1, S::npos);
+    test(S("abcde"), "abcde", 2, 2, S::npos);
+    test(S("abcde"), "abcde", 2, 4, S::npos);
+    test(S("abcde"), "abcde", 2, 5, S::npos);
+    test(S("abcde"), "abcdeabcde", 2, 0, 2);
+    test(S("abcde"), "abcdeabcde", 2, 1, S::npos);
+    test(S("abcde"), "abcdeabcde", 2, 5, S::npos);
+    test(S("abcde"), "abcdeabcde", 2, 9, S::npos);
+    test(S("abcde"), "abcdeabcde", 2, 10, S::npos);
+    test(S("abcde"), "abcdeabcdeabcdeabcde", 2, 0, 2);
+    test(S("abcde"), "abcdeabcdeabcdeabcde", 2, 1, S::npos);
+    test(S("abcde"), "abcdeabcdeabcdeabcde", 2, 10, S::npos);
+    test(S("abcde"), "abcdeabcdeabcdeabcde", 2, 19, S::npos);
+    test(S("abcde"), "abcdeabcdeabcdeabcde", 2, 20, S::npos);
+    test(S("abcde"), "", 4, 0, 4);
+    test(S("abcde"), "abcde", 4, 0, 4);
+    test(S("abcde"), "abcde", 4, 1, S::npos);
+    test(S("abcde"), "abcde", 4, 2, S::npos);
+    test(S("abcde"), "abcde", 4, 4, S::npos);
+    test(S("abcde"), "abcde", 4, 5, S::npos);
+    test(S("abcde"), "abcdeabcde", 4, 0, 4);
+    test(S("abcde"), "abcdeabcde", 4, 1, S::npos);
+    test(S("abcde"), "abcdeabcde", 4, 5, S::npos);
+    test(S("abcde"), "abcdeabcde", 4, 9, S::npos);
+    test(S("abcde"), "abcdeabcde", 4, 10, S::npos);
+    test(S("abcde"), "abcdeabcdeabcdeabcde", 4, 0, 4);
+    test(S("abcde"), "abcdeabcdeabcdeabcde", 4, 1, S::npos);
+    test(S("abcde"), "abcdeabcdeabcdeabcde", 4, 10, S::npos);
+    test(S("abcde"), "abcdeabcdeabcdeabcde", 4, 19, S::npos);
+    test(S("abcde"), "abcdeabcdeabcdeabcde", 4, 20, S::npos);
+    test(S("abcde"), "", 5, 0, 5);
+    test(S("abcde"), "abcde", 5, 0, 5);
+    test(S("abcde"), "abcde", 5, 1, S::npos);
+    test(S("abcde"), "abcde", 5, 2, S::npos);
+}
+
+template <class S>
+void test1()
+{
+    test(S("abcde"), "abcde", 5, 4, S::npos);
+    test(S("abcde"), "abcde", 5, 5, S::npos);
+    test(S("abcde"), "abcdeabcde", 5, 0, 5);
+    test(S("abcde"), "abcdeabcde", 5, 1, S::npos);
+    test(S("abcde"), "abcdeabcde", 5, 5, S::npos);
+    test(S("abcde"), "abcdeabcde", 5, 9, S::npos);
+    test(S("abcde"), "abcdeabcde", 5, 10, S::npos);
+    test(S("abcde"), "abcdeabcdeabcdeabcde", 5, 0, 5);
+    test(S("abcde"), "abcdeabcdeabcdeabcde", 5, 1, S::npos);
+    test(S("abcde"), "abcdeabcdeabcdeabcde", 5, 10, S::npos);
+    test(S("abcde"), "abcdeabcdeabcdeabcde", 5, 19, S::npos);
+    test(S("abcde"), "abcdeabcdeabcdeabcde", 5, 20, S::npos);
+    test(S("abcde"), "", 6, 0, S::npos);
+    test(S("abcde"), "abcde", 6, 0, S::npos);
+    test(S("abcde"), "abcde", 6, 1, S::npos);
+    test(S("abcde"), "abcde", 6, 2, S::npos);
+    test(S("abcde"), "abcde", 6, 4, S::npos);
+    test(S("abcde"), "abcde", 6, 5, S::npos);
+    test(S("abcde"), "abcdeabcde", 6, 0, S::npos);
+    test(S("abcde"), "abcdeabcde", 6, 1, S::npos);
+    test(S("abcde"), "abcdeabcde", 6, 5, S::npos);
+    test(S("abcde"), "abcdeabcde", 6, 9, S::npos);
+    test(S("abcde"), "abcdeabcde", 6, 10, S::npos);
+    test(S("abcde"), "abcdeabcdeabcdeabcde", 6, 0, S::npos);
+    test(S("abcde"), "abcdeabcdeabcdeabcde", 6, 1, S::npos);
+    test(S("abcde"), "abcdeabcdeabcdeabcde", 6, 10, S::npos);
+    test(S("abcde"), "abcdeabcdeabcdeabcde", 6, 19, S::npos);
+    test(S("abcde"), "abcdeabcdeabcdeabcde", 6, 20, S::npos);
+    test(S("abcdeabcde"), "", 0, 0, 0);
+    test(S("abcdeabcde"), "abcde", 0, 0, 0);
+    test(S("abcdeabcde"), "abcde", 0, 1, 0);
+    test(S("abcdeabcde"), "abcde", 0, 2, 0);
+    test(S("abcdeabcde"), "abcde", 0, 4, 0);
+    test(S("abcdeabcde"), "abcde", 0, 5, 0);
+    test(S("abcdeabcde"), "abcdeabcde", 0, 0, 0);
+    test(S("abcdeabcde"), "abcdeabcde", 0, 1, 0);
+    test(S("abcdeabcde"), "abcdeabcde", 0, 5, 0);
+    test(S("abcdeabcde"), "abcdeabcde", 0, 9, 0);
+    test(S("abcdeabcde"), "abcdeabcde", 0, 10, 0);
+    test(S("abcdeabcde"), "abcdeabcdeabcdeabcde", 0, 0, 0);
+    test(S("abcdeabcde"), "abcdeabcdeabcdeabcde", 0, 1, 0);
+    test(S("abcdeabcde"), "abcdeabcdeabcdeabcde", 0, 10, 0);
+    test(S("abcdeabcde"), "abcdeabcdeabcdeabcde", 0, 19, S::npos);
+    test(S("abcdeabcde"), "abcdeabcdeabcdeabcde", 0, 20, S::npos);
+    test(S("abcdeabcde"), "", 1, 0, 1);
+    test(S("abcdeabcde"), "abcde", 1, 0, 1);
+    test(S("abcdeabcde"), "abcde", 1, 1, 5);
+    test(S("abcdeabcde"), "abcde", 1, 2, 5);
+    test(S("abcdeabcde"), "abcde", 1, 4, 5);
+    test(S("abcdeabcde"), "abcde", 1, 5, 5);
+    test(S("abcdeabcde"), "abcdeabcde", 1, 0, 1);
+    test(S("abcdeabcde"), "abcdeabcde", 1, 1, 5);
+    test(S("abcdeabcde"), "abcdeabcde", 1, 5, 5);
+    test(S("abcdeabcde"), "abcdeabcde", 1, 9, S::npos);
+    test(S("abcdeabcde"), "abcdeabcde", 1, 10, S::npos);
+    test(S("abcdeabcde"), "abcdeabcdeabcdeabcde", 1, 0, 1);
+    test(S("abcdeabcde"), "abcdeabcdeabcdeabcde", 1, 1, 5);
+    test(S("abcdeabcde"), "abcdeabcdeabcdeabcde", 1, 10, S::npos);
+    test(S("abcdeabcde"), "abcdeabcdeabcdeabcde", 1, 19, S::npos);
+    test(S("abcdeabcde"), "abcdeabcdeabcdeabcde", 1, 20, S::npos);
+    test(S("abcdeabcde"), "", 5, 0, 5);
+    test(S("abcdeabcde"), "abcde", 5, 0, 5);
+    test(S("abcdeabcde"), "abcde", 5, 1, 5);
+    test(S("abcdeabcde"), "abcde", 5, 2, 5);
+    test(S("abcdeabcde"), "abcde", 5, 4, 5);
+    test(S("abcdeabcde"), "abcde", 5, 5, 5);
+    test(S("abcdeabcde"), "abcdeabcde", 5, 0, 5);
+    test(S("abcdeabcde"), "abcdeabcde", 5, 1, 5);
+    test(S("abcdeabcde"), "abcdeabcde", 5, 5, 5);
+    test(S("abcdeabcde"), "abcdeabcde", 5, 9, S::npos);
+    test(S("abcdeabcde"), "abcdeabcde", 5, 10, S::npos);
+    test(S("abcdeabcde"), "abcdeabcdeabcdeabcde", 5, 0, 5);
+    test(S("abcdeabcde"), "abcdeabcdeabcdeabcde", 5, 1, 5);
+    test(S("abcdeabcde"), "abcdeabcdeabcdeabcde", 5, 10, S::npos);
+    test(S("abcdeabcde"), "abcdeabcdeabcdeabcde", 5, 19, S::npos);
+    test(S("abcdeabcde"), "abcdeabcdeabcdeabcde", 5, 20, S::npos);
+    test(S("abcdeabcde"), "", 9, 0, 9);
+    test(S("abcdeabcde"), "abcde", 9, 0, 9);
+    test(S("abcdeabcde"), "abcde", 9, 1, S::npos);
+    test(S("abcdeabcde"), "abcde", 9, 2, S::npos);
+    test(S("abcdeabcde"), "abcde", 9, 4, S::npos);
+    test(S("abcdeabcde"), "abcde", 9, 5, S::npos);
+    test(S("abcdeabcde"), "abcdeabcde", 9, 0, 9);
+    test(S("abcdeabcde"), "abcdeabcde", 9, 1, S::npos);
+    test(S("abcdeabcde"), "abcdeabcde", 9, 5, S::npos);
+    test(S("abcdeabcde"), "abcdeabcde", 9, 9, S::npos);
+    test(S("abcdeabcde"), "abcdeabcde", 9, 10, S::npos);
+    test(S("abcdeabcde"), "abcdeabcdeabcdeabcde", 9, 0, 9);
+    test(S("abcdeabcde"), "abcdeabcdeabcdeabcde", 9, 1, S::npos);
+    test(S("abcdeabcde"), "abcdeabcdeabcdeabcde", 9, 10, S::npos);
+    test(S("abcdeabcde"), "abcdeabcdeabcdeabcde", 9, 19, S::npos);
+    test(S("abcdeabcde"), "abcdeabcdeabcdeabcde", 9, 20, S::npos);
+    test(S("abcdeabcde"), "", 10, 0, 10);
+    test(S("abcdeabcde"), "abcde", 10, 0, 10);
+    test(S("abcdeabcde"), "abcde", 10, 1, S::npos);
+    test(S("abcdeabcde"), "abcde", 10, 2, S::npos);
+    test(S("abcdeabcde"), "abcde", 10, 4, S::npos);
+    test(S("abcdeabcde"), "abcde", 10, 5, S::npos);
+    test(S("abcdeabcde"), "abcdeabcde", 10, 0, 10);
+    test(S("abcdeabcde"), "abcdeabcde", 10, 1, S::npos);
+}
+
+template <class S>
+void test2()
+{
+    test(S("abcdeabcde"), "abcdeabcde", 10, 5, S::npos);
+    test(S("abcdeabcde"), "abcdeabcde", 10, 9, S::npos);
+    test(S("abcdeabcde"), "abcdeabcde", 10, 10, S::npos);
+    test(S("abcdeabcde"), "abcdeabcdeabcdeabcde", 10, 0, 10);
+    test(S("abcdeabcde"), "abcdeabcdeabcdeabcde", 10, 1, S::npos);
+    test(S("abcdeabcde"), "abcdeabcdeabcdeabcde", 10, 10, S::npos);
+    test(S("abcdeabcde"), "abcdeabcdeabcdeabcde", 10, 19, S::npos);
+    test(S("abcdeabcde"), "abcdeabcdeabcdeabcde", 10, 20, S::npos);
+    test(S("abcdeabcde"), "", 11, 0, S::npos);
+    test(S("abcdeabcde"), "abcde", 11, 0, S::npos);
+    test(S("abcdeabcde"), "abcde", 11, 1, S::npos);
+    test(S("abcdeabcde"), "abcde", 11, 2, S::npos);
+    test(S("abcdeabcde"), "abcde", 11, 4, S::npos);
+    test(S("abcdeabcde"), "abcde", 11, 5, S::npos);
+    test(S("abcdeabcde"), "abcdeabcde", 11, 0, S::npos);
+    test(S("abcdeabcde"), "abcdeabcde", 11, 1, S::npos);
+    test(S("abcdeabcde"), "abcdeabcde", 11, 5, S::npos);
+    test(S("abcdeabcde"), "abcdeabcde", 11, 9, S::npos);
+    test(S("abcdeabcde"), "abcdeabcde", 11, 10, S::npos);
+    test(S("abcdeabcde"), "abcdeabcdeabcdeabcde", 11, 0, S::npos);
+    test(S("abcdeabcde"), "abcdeabcdeabcdeabcde", 11, 1, S::npos);
+    test(S("abcdeabcde"), "abcdeabcdeabcdeabcde", 11, 10, S::npos);
+    test(S("abcdeabcde"), "abcdeabcdeabcdeabcde", 11, 19, S::npos);
+    test(S("abcdeabcde"), "abcdeabcdeabcdeabcde", 11, 20, S::npos);
+    test(S("abcdeabcdeabcdeabcde"), "", 0, 0, 0);
+    test(S("abcdeabcdeabcdeabcde"), "abcde", 0, 0, 0);
+    test(S("abcdeabcdeabcdeabcde"), "abcde", 0, 1, 0);
+    test(S("abcdeabcdeabcdeabcde"), "abcde", 0, 2, 0);
+    test(S("abcdeabcdeabcdeabcde"), "abcde", 0, 4, 0);
+    test(S("abcdeabcdeabcdeabcde"), "abcde", 0, 5, 0);
+    test(S("abcdeabcdeabcdeabcde"), "abcdeabcde", 0, 0, 0);
+    test(S("abcdeabcdeabcdeabcde"), "abcdeabcde", 0, 1, 0);
+    test(S("abcdeabcdeabcdeabcde"), "abcdeabcde", 0, 5, 0);
+    test(S("abcdeabcdeabcdeabcde"), "abcdeabcde", 0, 9, 0);
+    test(S("abcdeabcdeabcdeabcde"), "abcdeabcde", 0, 10, 0);
+    test(S("abcdeabcdeabcdeabcde"), "abcdeabcdeabcdeabcde", 0, 0, 0);
+    test(S("abcdeabcdeabcdeabcde"), "abcdeabcdeabcdeabcde", 0, 1, 0);
+    test(S("abcdeabcdeabcdeabcde"), "abcdeabcdeabcdeabcde", 0, 10, 0);
+    test(S("abcdeabcdeabcdeabcde"), "abcdeabcdeabcdeabcde", 0, 19, 0);
+    test(S("abcdeabcdeabcdeabcde"), "abcdeabcdeabcdeabcde", 0, 20, 0);
+    test(S("abcdeabcdeabcdeabcde"), "", 1, 0, 1);
+    test(S("abcdeabcdeabcdeabcde"), "abcde", 1, 0, 1);
+    test(S("abcdeabcdeabcdeabcde"), "abcde", 1, 1, 5);
+    test(S("abcdeabcdeabcdeabcde"), "abcde", 1, 2, 5);
+    test(S("abcdeabcdeabcdeabcde"), "abcde", 1, 4, 5);
+    test(S("abcdeabcdeabcdeabcde"), "abcde", 1, 5, 5);
+    test(S("abcdeabcdeabcdeabcde"), "abcdeabcde", 1, 0, 1);
+    test(S("abcdeabcdeabcdeabcde"), "abcdeabcde", 1, 1, 5);
+    test(S("abcdeabcdeabcdeabcde"), "abcdeabcde", 1, 5, 5);
+    test(S("abcdeabcdeabcdeabcde"), "abcdeabcde", 1, 9, 5);
+    test(S("abcdeabcdeabcdeabcde"), "abcdeabcde", 1, 10, 5);
+    test(S("abcdeabcdeabcdeabcde"), "abcdeabcdeabcdeabcde", 1, 0, 1);
+    test(S("abcdeabcdeabcdeabcde"), "abcdeabcdeabcdeabcde", 1, 1, 5);
+    test(S("abcdeabcdeabcdeabcde"), "abcdeabcdeabcdeabcde", 1, 10, 5);
+    test(S("abcdeabcdeabcdeabcde"), "abcdeabcdeabcdeabcde", 1, 19, S::npos);
+    test(S("abcdeabcdeabcdeabcde"), "abcdeabcdeabcdeabcde", 1, 20, S::npos);
+    test(S("abcdeabcdeabcdeabcde"), "", 10, 0, 10);
+    test(S("abcdeabcdeabcdeabcde"), "abcde", 10, 0, 10);
+    test(S("abcdeabcdeabcdeabcde"), "abcde", 10, 1, 10);
+    test(S("abcdeabcdeabcdeabcde"), "abcde", 10, 2, 10);
+    test(S("abcdeabcdeabcdeabcde"), "abcde", 10, 4, 10);
+    test(S("abcdeabcdeabcdeabcde"), "abcde", 10, 5, 10);
+    test(S("abcdeabcdeabcdeabcde"), "abcdeabcde", 10, 0, 10);
+    test(S("abcdeabcdeabcdeabcde"), "abcdeabcde", 10, 1, 10);
+    test(S("abcdeabcdeabcdeabcde"), "abcdeabcde", 10, 5, 10);
+    test(S("abcdeabcdeabcdeabcde"), "abcdeabcde", 10, 9, 10);
+    test(S("abcdeabcdeabcdeabcde"), "abcdeabcde", 10, 10, 10);
+    test(S("abcdeabcdeabcdeabcde"), "abcdeabcdeabcdeabcde", 10, 0, 10);
+    test(S("abcdeabcdeabcdeabcde"), "abcdeabcdeabcdeabcde", 10, 1, 10);
+    test(S("abcdeabcdeabcdeabcde"), "abcdeabcdeabcdeabcde", 10, 10, 10);
+    test(S("abcdeabcdeabcdeabcde"), "abcdeabcdeabcdeabcde", 10, 19, S::npos);
+    test(S("abcdeabcdeabcdeabcde"), "abcdeabcdeabcdeabcde", 10, 20, S::npos);
+    test(S("abcdeabcdeabcdeabcde"), "", 19, 0, 19);
+    test(S("abcdeabcdeabcdeabcde"), "abcde", 19, 0, 19);
+    test(S("abcdeabcdeabcdeabcde"), "abcde", 19, 1, S::npos);
+    test(S("abcdeabcdeabcdeabcde"), "abcde", 19, 2, S::npos);
+    test(S("abcdeabcdeabcdeabcde"), "abcde", 19, 4, S::npos);
+    test(S("abcdeabcdeabcdeabcde"), "abcde", 19, 5, S::npos);
+    test(S("abcdeabcdeabcdeabcde"), "abcdeabcde", 19, 0, 19);
+    test(S("abcdeabcdeabcdeabcde"), "abcdeabcde", 19, 1, S::npos);
+    test(S("abcdeabcdeabcdeabcde"), "abcdeabcde", 19, 5, S::npos);
+    test(S("abcdeabcdeabcdeabcde"), "abcdeabcde", 19, 9, S::npos);
+    test(S("abcdeabcdeabcdeabcde"), "abcdeabcde", 19, 10, S::npos);
+    test(S("abcdeabcdeabcdeabcde"), "abcdeabcdeabcdeabcde", 19, 0, 19);
+    test(S("abcdeabcdeabcdeabcde"), "abcdeabcdeabcdeabcde", 19, 1, S::npos);
+    test(S("abcdeabcdeabcdeabcde"), "abcdeabcdeabcdeabcde", 19, 10, S::npos);
+    test(S("abcdeabcdeabcdeabcde"), "abcdeabcdeabcdeabcde", 19, 19, S::npos);
+    test(S("abcdeabcdeabcdeabcde"), "abcdeabcdeabcdeabcde", 19, 20, S::npos);
+    test(S("abcdeabcdeabcdeabcde"), "", 20, 0, 20);
+    test(S("abcdeabcdeabcdeabcde"), "abcde", 20, 0, 20);
+    test(S("abcdeabcdeabcdeabcde"), "abcde", 20, 1, S::npos);
+    test(S("abcdeabcdeabcdeabcde"), "abcde", 20, 2, S::npos);
+    test(S("abcdeabcdeabcdeabcde"), "abcde", 20, 4, S::npos);
+    test(S("abcdeabcdeabcdeabcde"), "abcde", 20, 5, S::npos);
+    test(S("abcdeabcdeabcdeabcde"), "abcdeabcde", 20, 0, 20);
+    test(S("abcdeabcdeabcdeabcde"), "abcdeabcde", 20, 1, S::npos);
+    test(S("abcdeabcdeabcdeabcde"), "abcdeabcde", 20, 5, S::npos);
+    test(S("abcdeabcdeabcdeabcde"), "abcdeabcde", 20, 9, S::npos);
+    test(S("abcdeabcdeabcdeabcde"), "abcdeabcde", 20, 10, S::npos);
+    test(S("abcdeabcdeabcdeabcde"), "abcdeabcdeabcdeabcde", 20, 0, 20);
+}
+
+template <class S>
+void test3()
+{
+    test(S("abcdeabcdeabcdeabcde"), "abcdeabcdeabcdeabcde", 20, 1, S::npos);
+    test(S("abcdeabcdeabcdeabcde"), "abcdeabcdeabcdeabcde", 20, 10, S::npos);
+    test(S("abcdeabcdeabcdeabcde"), "abcdeabcdeabcdeabcde", 20, 19, S::npos);
+    test(S("abcdeabcdeabcdeabcde"), "abcdeabcdeabcdeabcde", 20, 20, S::npos);
+    test(S("abcdeabcdeabcdeabcde"), "", 21, 0, S::npos);
+    test(S("abcdeabcdeabcdeabcde"), "abcde", 21, 0, S::npos);
+    test(S("abcdeabcdeabcdeabcde"), "abcde", 21, 1, S::npos);
+    test(S("abcdeabcdeabcdeabcde"), "abcde", 21, 2, S::npos);
+    test(S("abcdeabcdeabcdeabcde"), "abcde", 21, 4, S::npos);
+    test(S("abcdeabcdeabcdeabcde"), "abcde", 21, 5, S::npos);
+    test(S("abcdeabcdeabcdeabcde"), "abcdeabcde", 21, 0, S::npos);
+    test(S("abcdeabcdeabcdeabcde"), "abcdeabcde", 21, 1, S::npos);
+    test(S("abcdeabcdeabcdeabcde"), "abcdeabcde", 21, 5, S::npos);
+    test(S("abcdeabcdeabcdeabcde"), "abcdeabcde", 21, 9, S::npos);
+    test(S("abcdeabcdeabcdeabcde"), "abcdeabcde", 21, 10, S::npos);
+    test(S("abcdeabcdeabcdeabcde"), "abcdeabcdeabcdeabcde", 21, 0, S::npos);
+    test(S("abcdeabcdeabcdeabcde"), "abcdeabcdeabcdeabcde", 21, 1, S::npos);
+    test(S("abcdeabcdeabcdeabcde"), "abcdeabcdeabcdeabcde", 21, 10, S::npos);
+    test(S("abcdeabcdeabcdeabcde"), "abcdeabcdeabcdeabcde", 21, 19, S::npos);
+    test(S("abcdeabcdeabcdeabcde"), "abcdeabcdeabcdeabcde", 21, 20, S::npos);
+}
+
+int main()
+{
+    {
+    typedef std::experimental::string_view S;
+    test0<S>();
+    test1<S>();
+    test2<S>();
+    test3<S>();
+    }
+
+#if _LIBCPP_STD_VER > 11
+    {
+    typedef std::experimental::basic_string_view<char, constexpr_char_traits<char>> SV;
+    constexpr SV  sv1;
+    constexpr SV  sv2 { "abcde", 5 };
+
+    static_assert (sv1.find( "",      0, 0 ) == 0, "" );
+    static_assert (sv1.find( "abcde", 0, 0 ) == 0, "" );
+    static_assert (sv1.find( "abcde", 0, 1 ) == SV::npos, "" );
+    static_assert (sv2.find( "",      0, 0 ) == 0, "" );
+    static_assert (sv2.find( "abcde", 0, 0 ) == 0, "" );
+    static_assert (sv2.find( "abcde", 0, 1 ) == 0, "" );
+    }
+#endif
+}

Added: libcxx/trunk/test/std/experimental/string.view/string.view.find/find_string_view_size.pass.cpp
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/test/std/experimental/string.view/string.view.find/find_string_view_size.pass.cpp?rev=224658&view=auto
==============================================================================
--- libcxx/trunk/test/std/experimental/string.view/string.view.find/find_string_view_size.pass.cpp (added)
+++ libcxx/trunk/test/std/experimental/string.view/string.view.find/find_string_view_size.pass.cpp Fri Dec 19 19:40:03 2014
@@ -0,0 +1,164 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <string_view>
+
+// constexpr size_type find(const basic_string_view& str, size_type pos = 0) const;
+
+#include <experimental/string_view>
+#include <cassert>
+
+#include "constexpr_char_traits.hpp"
+
+template <class S>
+void
+test(const S& s, const S& str, typename S::size_type pos, typename S::size_type x)
+{
+    assert(s.find(str, pos) == x);
+    if (x != S::npos)
+        assert(pos <= x && x + str.size() <= s.size());
+}
+
+template <class S>
+void
+test(const S& s, const S& str, typename S::size_type x)
+{
+    assert(s.find(str) == x);
+    if (x != S::npos)
+        assert(0 <= x && x + str.size() <= s.size());
+}
+
+template <class S>
+void test0()
+{
+    test(S(""), S(""), 0, 0);
+    test(S(""), S("abcde"), 0, S::npos);
+    test(S(""), S("abcdeabcde"), 0, S::npos);
+    test(S(""), S("abcdeabcdeabcdeabcde"), 0, S::npos);
+    test(S(""), S(""), 1, S::npos);
+    test(S(""), S("abcde"), 1, S::npos);
+    test(S(""), S("abcdeabcde"), 1, S::npos);
+    test(S(""), S("abcdeabcdeabcdeabcde"), 1, S::npos);
+    test(S("abcde"), S(""), 0, 0);
+    test(S("abcde"), S("abcde"), 0, 0);
+    test(S("abcde"), S("abcdeabcde"), 0, S::npos);
+    test(S("abcde"), S("abcdeabcdeabcdeabcde"), 0, S::npos);
+    test(S("abcde"), S(""), 1, 1);
+    test(S("abcde"), S("abcde"), 1, S::npos);
+    test(S("abcde"), S("abcdeabcde"), 1, S::npos);
+    test(S("abcde"), S("abcdeabcdeabcdeabcde"), 1, S::npos);
+    test(S("abcde"), S(""), 2, 2);
+    test(S("abcde"), S("abcde"), 2, S::npos);
+    test(S("abcde"), S("abcdeabcde"), 2, S::npos);
+    test(S("abcde"), S("abcdeabcdeabcdeabcde"), 2, S::npos);
+    test(S("abcde"), S(""), 4, 4);
+    test(S("abcde"), S("abcde"), 4, S::npos);
+    test(S("abcde"), S("abcdeabcde"), 4, S::npos);
+    test(S("abcde"), S("abcdeabcdeabcdeabcde"), 4, S::npos);
+    test(S("abcde"), S(""), 5, 5);
+    test(S("abcde"), S("abcde"), 5, S::npos);
+    test(S("abcde"), S("abcdeabcde"), 5, S::npos);
+    test(S("abcde"), S("abcdeabcdeabcdeabcde"), 5, S::npos);
+    test(S("abcde"), S(""), 6, S::npos);
+    test(S("abcde"), S("abcde"), 6, S::npos);
+    test(S("abcde"), S("abcdeabcde"), 6, S::npos);
+    test(S("abcde"), S("abcdeabcdeabcdeabcde"), 6, S::npos);
+    test(S("abcdeabcde"), S(""), 0, 0);
+    test(S("abcdeabcde"), S("abcde"), 0, 0);
+    test(S("abcdeabcde"), S("abcdeabcde"), 0, 0);
+    test(S("abcdeabcde"), S("abcdeabcdeabcdeabcde"), 0, S::npos);
+    test(S("abcdeabcde"), S(""), 1, 1);
+    test(S("abcdeabcde"), S("abcde"), 1, 5);
+    test(S("abcdeabcde"), S("abcdeabcde"), 1, S::npos);
+    test(S("abcdeabcde"), S("abcdeabcdeabcdeabcde"), 1, S::npos);
+    test(S("abcdeabcde"), S(""), 5, 5);
+    test(S("abcdeabcde"), S("abcde"), 5, 5);
+    test(S("abcdeabcde"), S("abcdeabcde"), 5, S::npos);
+    test(S("abcdeabcde"), S("abcdeabcdeabcdeabcde"), 5, S::npos);
+    test(S("abcdeabcde"), S(""), 9, 9);
+    test(S("abcdeabcde"), S("abcde"), 9, S::npos);
+    test(S("abcdeabcde"), S("abcdeabcde"), 9, S::npos);
+    test(S("abcdeabcde"), S("abcdeabcdeabcdeabcde"), 9, S::npos);
+    test(S("abcdeabcde"), S(""), 10, 10);
+    test(S("abcdeabcde"), S("abcde"), 10, S::npos);
+    test(S("abcdeabcde"), S("abcdeabcde"), 10, S::npos);
+    test(S("abcdeabcde"), S("abcdeabcdeabcdeabcde"), 10, S::npos);
+    test(S("abcdeabcde"), S(""), 11, S::npos);
+    test(S("abcdeabcde"), S("abcde"), 11, S::npos);
+    test(S("abcdeabcde"), S("abcdeabcde"), 11, S::npos);
+    test(S("abcdeabcde"), S("abcdeabcdeabcdeabcde"), 11, S::npos);
+    test(S("abcdeabcdeabcdeabcde"), S(""), 0, 0);
+    test(S("abcdeabcdeabcdeabcde"), S("abcde"), 0, 0);
+    test(S("abcdeabcdeabcdeabcde"), S("abcdeabcde"), 0, 0);
+    test(S("abcdeabcdeabcdeabcde"), S("abcdeabcdeabcdeabcde"), 0, 0);
+    test(S("abcdeabcdeabcdeabcde"), S(""), 1, 1);
+    test(S("abcdeabcdeabcdeabcde"), S("abcde"), 1, 5);
+    test(S("abcdeabcdeabcdeabcde"), S("abcdeabcde"), 1, 5);
+    test(S("abcdeabcdeabcdeabcde"), S("abcdeabcdeabcdeabcde"), 1, S::npos);
+    test(S("abcdeabcdeabcdeabcde"), S(""), 10, 10);
+    test(S("abcdeabcdeabcdeabcde"), S("abcde"), 10, 10);
+    test(S("abcdeabcdeabcdeabcde"), S("abcdeabcde"), 10, 10);
+    test(S("abcdeabcdeabcdeabcde"), S("abcdeabcdeabcdeabcde"), 10, S::npos);
+    test(S("abcdeabcdeabcdeabcde"), S(""), 19, 19);
+    test(S("abcdeabcdeabcdeabcde"), S("abcde"), 19, S::npos);
+    test(S("abcdeabcdeabcdeabcde"), S("abcdeabcde"), 19, S::npos);
+    test(S("abcdeabcdeabcdeabcde"), S("abcdeabcdeabcdeabcde"), 19, S::npos);
+    test(S("abcdeabcdeabcdeabcde"), S(""), 20, 20);
+    test(S("abcdeabcdeabcdeabcde"), S("abcde"), 20, S::npos);
+    test(S("abcdeabcdeabcdeabcde"), S("abcdeabcde"), 20, S::npos);
+    test(S("abcdeabcdeabcdeabcde"), S("abcdeabcdeabcdeabcde"), 20, S::npos);
+    test(S("abcdeabcdeabcdeabcde"), S(""), 21, S::npos);
+    test(S("abcdeabcdeabcdeabcde"), S("abcde"), 21, S::npos);
+    test(S("abcdeabcdeabcdeabcde"), S("abcdeabcde"), 21, S::npos);
+    test(S("abcdeabcdeabcdeabcde"), S("abcdeabcdeabcdeabcde"), 21, S::npos);
+}
+
+template <class S>
+void test1()
+{
+    test(S(""), S(""), 0);
+    test(S(""), S("abcde"), S::npos);
+    test(S(""), S("abcdeabcde"), S::npos);
+    test(S(""), S("abcdeabcdeabcdeabcde"), S::npos);
+    test(S("abcde"), S(""), 0);
+    test(S("abcde"), S("abcde"), 0);
+    test(S("abcde"), S("abcdeabcde"), S::npos);
+    test(S("abcde"), S("abcdeabcdeabcdeabcde"), S::npos);
+    test(S("abcdeabcde"), S(""), 0);
+    test(S("abcdeabcde"), S("abcde"), 0);
+    test(S("abcdeabcde"), S("abcdeabcde"), 0);
+    test(S("abcdeabcde"), S("abcdeabcdeabcdeabcde"), S::npos);
+    test(S("abcdeabcdeabcdeabcde"), S(""), 0);
+    test(S("abcdeabcdeabcdeabcde"), S("abcde"), 0);
+    test(S("abcdeabcdeabcdeabcde"), S("abcdeabcde"), 0);
+    test(S("abcdeabcdeabcdeabcde"), S("abcdeabcdeabcdeabcde"), 0);
+}
+
+int main()
+{
+    {
+    typedef std::experimental::string_view S;
+    test0<S>();
+    test1<S>();
+    }
+
+#if _LIBCPP_STD_VER > 11
+    {
+    typedef std::experimental::basic_string_view<char, constexpr_char_traits<char>> SV;
+    constexpr SV  sv1;
+    constexpr SV  sv2 { "abcde", 5 };
+
+    static_assert (sv1.find(sv1) == 0, "" );
+    static_assert (sv1.find(sv2) == SV::npos, "" );
+    static_assert (sv2.find(sv1) == 0, "" );
+    static_assert (sv2.find(sv2) == 0, "" );
+    static_assert (sv2.find(sv2, 1 ) == SV::npos, "" );
+    }
+#endif
+}

Added: libcxx/trunk/test/std/experimental/string.view/string.view.find/rfind_char_size.pass.cpp
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/test/std/experimental/string.view/string.view.find/rfind_char_size.pass.cpp?rev=224658&view=auto
==============================================================================
--- libcxx/trunk/test/std/experimental/string.view/string.view.find/rfind_char_size.pass.cpp (added)
+++ libcxx/trunk/test/std/experimental/string.view/string.view.find/rfind_char_size.pass.cpp Fri Dec 19 19:40:03 2014
@@ -0,0 +1,83 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <string_view>
+// constexpr size_type rfind(charT c, size_type pos = npos) const;
+
+#include <experimental/string_view>
+#include <cassert>
+
+#include "constexpr_char_traits.hpp"
+
+template <class S>
+void
+test(const S& s, typename S::value_type c, typename S::size_type pos,
+     typename S::size_type x)
+{
+    assert(s.rfind(c, pos) == x);
+    if (x != S::npos)
+        assert(x <= pos && x + 1 <= s.size());
+}
+
+template <class S>
+void
+test(const S& s, typename S::value_type c, typename S::size_type x)
+{
+    assert(s.rfind(c) == x);
+    if (x != S::npos)
+        assert(x + 1 <= s.size());
+}
+
+int main()
+{
+    {
+    typedef std::experimental::string_view S;
+    test(S(""), 'b', 0, S::npos);
+    test(S(""), 'b', 1, S::npos);
+    test(S("abcde"), 'b', 0, S::npos);
+    test(S("abcde"), 'b', 1, 1);
+    test(S("abcde"), 'b', 2, 1);
+    test(S("abcde"), 'b', 4, 1);
+    test(S("abcde"), 'b', 5, 1);
+    test(S("abcde"), 'b', 6, 1);
+    test(S("abcdeabcde"), 'b', 0, S::npos);
+    test(S("abcdeabcde"), 'b', 1, 1);
+    test(S("abcdeabcde"), 'b', 5, 1);
+    test(S("abcdeabcde"), 'b', 9, 6);
+    test(S("abcdeabcde"), 'b', 10, 6);
+    test(S("abcdeabcde"), 'b', 11, 6);
+    test(S("abcdeabcdeabcdeabcde"), 'b', 0, S::npos);
+    test(S("abcdeabcdeabcdeabcde"), 'b', 1, 1);
+    test(S("abcdeabcdeabcdeabcde"), 'b', 10, 6);
+    test(S("abcdeabcdeabcdeabcde"), 'b', 19, 16);
+    test(S("abcdeabcdeabcdeabcde"), 'b', 20, 16);
+    test(S("abcdeabcdeabcdeabcde"), 'b', 21, 16);
+
+    test(S(""), 'b', S::npos);
+    test(S("abcde"), 'b', 1);
+    test(S("abcdeabcde"), 'b', 6);
+    test(S("abcdeabcdeabcdeabcde"), 'b', 16);
+    }
+
+#if _LIBCPP_STD_VER > 11
+    {
+    typedef std::experimental::basic_string_view<char, constexpr_char_traits<char>> SV;
+    constexpr SV  sv1;
+    constexpr SV  sv2 { "abcde", 5 };
+
+    static_assert (sv1.rfind( 'b', 0 ) == SV::npos, "" );
+    static_assert (sv1.rfind( 'b', 1 ) == SV::npos, "" );
+    static_assert (sv2.rfind( 'b', 0 ) == SV::npos, "" );
+    static_assert (sv2.rfind( 'b', 1 ) == 1, "" );
+    static_assert (sv2.rfind( 'b', 2 ) == 1, "" );
+    static_assert (sv2.rfind( 'b', 3 ) == 1, "" );
+    static_assert (sv2.rfind( 'b', 4 ) == 1, "" );
+    }
+#endif
+}

Added: libcxx/trunk/test/std/experimental/string.view/string.view.find/rfind_pointer_size.pass.cpp
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/test/std/experimental/string.view/string.view.find/rfind_pointer_size.pass.cpp?rev=224658&view=auto
==============================================================================
--- libcxx/trunk/test/std/experimental/string.view/string.view.find/rfind_pointer_size.pass.cpp (added)
+++ libcxx/trunk/test/std/experimental/string.view/string.view.find/rfind_pointer_size.pass.cpp Fri Dec 19 19:40:03 2014
@@ -0,0 +1,171 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <string_view>
+// constexpr size_type rfind(const charT* s, size_type pos = npos) const;
+
+#include <experimental/string_view>
+#include <cassert>
+
+#include "constexpr_char_traits.hpp"
+
+template <class S>
+void
+test(const S& s, const typename S::value_type* str, typename S::size_type pos,
+     typename S::size_type x)
+{
+    assert(s.rfind(str, pos) == x);
+    if (x != S::npos)
+    {
+        typename S::size_type n = S::traits_type::length(str);
+        assert(x <= pos && x + n <= s.size());
+    }
+}
+
+template <class S>
+void
+test(const S& s, const typename S::value_type* str, typename S::size_type x)
+{
+    assert(s.rfind(str) == x);
+    if (x != S::npos)
+    {
+        typename S::size_type pos = s.size();
+        typename S::size_type n = S::traits_type::length(str);
+        assert(x <= pos && x + n <= s.size());
+    }
+}
+
+template <class S>
+void test0()
+{
+    test(S(""), "", 0, 0);
+    test(S(""), "abcde", 0, S::npos);
+    test(S(""), "abcdeabcde", 0, S::npos);
+    test(S(""), "abcdeabcdeabcdeabcde", 0, S::npos);
+    test(S(""), "", 1, 0);
+    test(S(""), "abcde", 1, S::npos);
+    test(S(""), "abcdeabcde", 1, S::npos);
+    test(S(""), "abcdeabcdeabcdeabcde", 1, S::npos);
+    test(S("abcde"), "", 0, 0);
+    test(S("abcde"), "abcde", 0, 0);
+    test(S("abcde"), "abcdeabcde", 0, S::npos);
+    test(S("abcde"), "abcdeabcdeabcdeabcde", 0, S::npos);
+    test(S("abcde"), "", 1, 1);
+    test(S("abcde"), "abcde", 1, 0);
+    test(S("abcde"), "abcdeabcde", 1, S::npos);
+    test(S("abcde"), "abcdeabcdeabcdeabcde", 1, S::npos);
+    test(S("abcde"), "", 2, 2);
+    test(S("abcde"), "abcde", 2, 0);
+    test(S("abcde"), "abcdeabcde", 2, S::npos);
+    test(S("abcde"), "abcdeabcdeabcdeabcde", 2, S::npos);
+    test(S("abcde"), "", 4, 4);
+    test(S("abcde"), "abcde", 4, 0);
+    test(S("abcde"), "abcdeabcde", 4, S::npos);
+    test(S("abcde"), "abcdeabcdeabcdeabcde", 4, S::npos);
+    test(S("abcde"), "", 5, 5);
+    test(S("abcde"), "abcde", 5, 0);
+    test(S("abcde"), "abcdeabcde", 5, S::npos);
+    test(S("abcde"), "abcdeabcdeabcdeabcde", 5, S::npos);
+    test(S("abcde"), "", 6, 5);
+    test(S("abcde"), "abcde", 6, 0);
+    test(S("abcde"), "abcdeabcde", 6, S::npos);
+    test(S("abcde"), "abcdeabcdeabcdeabcde", 6, S::npos);
+    test(S("abcdeabcde"), "", 0, 0);
+    test(S("abcdeabcde"), "abcde", 0, 0);
+    test(S("abcdeabcde"), "abcdeabcde", 0, 0);
+    test(S("abcdeabcde"), "abcdeabcdeabcdeabcde", 0, S::npos);
+    test(S("abcdeabcde"), "", 1, 1);
+    test(S("abcdeabcde"), "abcde", 1, 0);
+    test(S("abcdeabcde"), "abcdeabcde", 1, 0);
+    test(S("abcdeabcde"), "abcdeabcdeabcdeabcde", 1, S::npos);
+    test(S("abcdeabcde"), "", 5, 5);
+    test(S("abcdeabcde"), "abcde", 5, 5);
+    test(S("abcdeabcde"), "abcdeabcde", 5, 0);
+    test(S("abcdeabcde"), "abcdeabcdeabcdeabcde", 5, S::npos);
+    test(S("abcdeabcde"), "", 9, 9);
+    test(S("abcdeabcde"), "abcde", 9, 5);
+    test(S("abcdeabcde"), "abcdeabcde", 9, 0);
+    test(S("abcdeabcde"), "abcdeabcdeabcdeabcde", 9, S::npos);
+    test(S("abcdeabcde"), "", 10, 10);
+    test(S("abcdeabcde"), "abcde", 10, 5);
+    test(S("abcdeabcde"), "abcdeabcde", 10, 0);
+    test(S("abcdeabcde"), "abcdeabcdeabcdeabcde", 10, S::npos);
+    test(S("abcdeabcde"), "", 11, 10);
+    test(S("abcdeabcde"), "abcde", 11, 5);
+    test(S("abcdeabcde"), "abcdeabcde", 11, 0);
+    test(S("abcdeabcde"), "abcdeabcdeabcdeabcde", 11, S::npos);
+    test(S("abcdeabcdeabcdeabcde"), "", 0, 0);
+    test(S("abcdeabcdeabcdeabcde"), "abcde", 0, 0);
+    test(S("abcdeabcdeabcdeabcde"), "abcdeabcde", 0, 0);
+    test(S("abcdeabcdeabcdeabcde"), "abcdeabcdeabcdeabcde", 0, 0);
+    test(S("abcdeabcdeabcdeabcde"), "", 1, 1);
+    test(S("abcdeabcdeabcdeabcde"), "abcde", 1, 0);
+    test(S("abcdeabcdeabcdeabcde"), "abcdeabcde", 1, 0);
+    test(S("abcdeabcdeabcdeabcde"), "abcdeabcdeabcdeabcde", 1, 0);
+    test(S("abcdeabcdeabcdeabcde"), "", 10, 10);
+    test(S("abcdeabcdeabcdeabcde"), "abcde", 10, 10);
+    test(S("abcdeabcdeabcdeabcde"), "abcdeabcde", 10, 10);
+    test(S("abcdeabcdeabcdeabcde"), "abcdeabcdeabcdeabcde", 10, 0);
+    test(S("abcdeabcdeabcdeabcde"), "", 19, 19);
+    test(S("abcdeabcdeabcdeabcde"), "abcde", 19, 15);
+    test(S("abcdeabcdeabcdeabcde"), "abcdeabcde", 19, 10);
+    test(S("abcdeabcdeabcdeabcde"), "abcdeabcdeabcdeabcde", 19, 0);
+    test(S("abcdeabcdeabcdeabcde"), "", 20, 20);
+    test(S("abcdeabcdeabcdeabcde"), "abcde", 20, 15);
+    test(S("abcdeabcdeabcdeabcde"), "abcdeabcde", 20, 10);
+    test(S("abcdeabcdeabcdeabcde"), "abcdeabcdeabcdeabcde", 20, 0);
+    test(S("abcdeabcdeabcdeabcde"), "", 21, 20);
+    test(S("abcdeabcdeabcdeabcde"), "abcde", 21, 15);
+    test(S("abcdeabcdeabcdeabcde"), "abcdeabcde", 21, 10);
+    test(S("abcdeabcdeabcdeabcde"), "abcdeabcdeabcdeabcde", 21, 0);
+}
+
+template <class S>
+void test1()
+{
+    test(S(""), "", 0);
+    test(S(""), "abcde", S::npos);
+    test(S(""), "abcdeabcde", S::npos);
+    test(S(""), "abcdeabcdeabcdeabcde", S::npos);
+    test(S("abcde"), "", 5);
+    test(S("abcde"), "abcde", 0);
+    test(S("abcde"), "abcdeabcde", S::npos);
+    test(S("abcde"), "abcdeabcdeabcdeabcde", S::npos);
+    test(S("abcdeabcde"), "", 10);
+    test(S("abcdeabcde"), "abcde", 5);
+    test(S("abcdeabcde"), "abcdeabcde", 0);
+    test(S("abcdeabcde"), "abcdeabcdeabcdeabcde", S::npos);
+    test(S("abcdeabcdeabcdeabcde"), "", 20);
+    test(S("abcdeabcdeabcdeabcde"), "abcde", 15);
+    test(S("abcdeabcdeabcdeabcde"), "abcdeabcde", 10);
+    test(S("abcdeabcdeabcdeabcde"), "abcdeabcdeabcdeabcde", 0);
+}
+
+int main()
+{
+    {
+    typedef std::experimental::string_view S;
+    test0<S>();
+    test1<S>();
+    }
+
+#if _LIBCPP_STD_VER > 11
+    {
+    typedef std::experimental::basic_string_view<char, constexpr_char_traits<char>> SV;
+    constexpr SV  sv1;
+    constexpr SV  sv2 { "abcde", 5 };
+
+    static_assert (sv1.rfind( "") == 0, "" );
+    static_assert (sv1.rfind( "abcde") == SV::npos, "" );
+    static_assert (sv2.rfind( "") == 5, "" );
+    static_assert (sv2.rfind( "abcde") == 0, "" );
+    static_assert (sv2.rfind( "abcde", 1) == 0, "" );
+    }
+#endif
+}

Added: libcxx/trunk/test/std/experimental/string.view/string.view.find/rfind_pointer_size_size.pass.cpp
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/test/std/experimental/string.view/string.view.find/rfind_pointer_size_size.pass.cpp?rev=224658&view=auto
==============================================================================
--- libcxx/trunk/test/std/experimental/string.view/string.view.find/rfind_pointer_size_size.pass.cpp (added)
+++ libcxx/trunk/test/std/experimental/string.view/string.view.find/rfind_pointer_size_size.pass.cpp Fri Dec 19 19:40:03 2014
@@ -0,0 +1,392 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <string_view>
+// constexpr size_type rfind(const charT* s, size_type pos, size_type n) const;
+
+#include <experimental/string_view>
+#include <cassert>
+
+#include "constexpr_char_traits.hpp"
+
+template <class S>
+void
+test(const S& s, const typename S::value_type* str, typename S::size_type pos,
+      typename S::size_type n, typename S::size_type x)
+{
+    assert(s.rfind(str, pos, n) == x);
+    if (x != S::npos)
+        assert(x <= pos && x + n <= s.size());
+}
+
+template <class S>
+void test0()
+{
+    test(S(""), "", 0, 0, 0);
+    test(S(""), "abcde", 0, 0, 0);
+    test(S(""), "abcde", 0, 1, S::npos);
+    test(S(""), "abcde", 0, 2, S::npos);
+    test(S(""), "abcde", 0, 4, S::npos);
+    test(S(""), "abcde", 0, 5, S::npos);
+    test(S(""), "abcdeabcde", 0, 0, 0);
+    test(S(""), "abcdeabcde", 0, 1, S::npos);
+    test(S(""), "abcdeabcde", 0, 5, S::npos);
+    test(S(""), "abcdeabcde", 0, 9, S::npos);
+    test(S(""), "abcdeabcde", 0, 10, S::npos);
+    test(S(""), "abcdeabcdeabcdeabcde", 0, 0, 0);
+    test(S(""), "abcdeabcdeabcdeabcde", 0, 1, S::npos);
+    test(S(""), "abcdeabcdeabcdeabcde", 0, 10, S::npos);
+    test(S(""), "abcdeabcdeabcdeabcde", 0, 19, S::npos);
+    test(S(""), "abcdeabcdeabcdeabcde", 0, 20, S::npos);
+    test(S(""), "", 1, 0, 0);
+    test(S(""), "abcde", 1, 0, 0);
+    test(S(""), "abcde", 1, 1, S::npos);
+    test(S(""), "abcde", 1, 2, S::npos);
+    test(S(""), "abcde", 1, 4, S::npos);
+    test(S(""), "abcde", 1, 5, S::npos);
+    test(S(""), "abcdeabcde", 1, 0, 0);
+    test(S(""), "abcdeabcde", 1, 1, S::npos);
+    test(S(""), "abcdeabcde", 1, 5, S::npos);
+    test(S(""), "abcdeabcde", 1, 9, S::npos);
+    test(S(""), "abcdeabcde", 1, 10, S::npos);
+    test(S(""), "abcdeabcdeabcdeabcde", 1, 0, 0);
+    test(S(""), "abcdeabcdeabcdeabcde", 1, 1, S::npos);
+    test(S(""), "abcdeabcdeabcdeabcde", 1, 10, S::npos);
+    test(S(""), "abcdeabcdeabcdeabcde", 1, 19, S::npos);
+    test(S(""), "abcdeabcdeabcdeabcde", 1, 20, S::npos);
+    test(S("abcde"), "", 0, 0, 0);
+    test(S("abcde"), "abcde", 0, 0, 0);
+    test(S("abcde"), "abcde", 0, 1, 0);
+    test(S("abcde"), "abcde", 0, 2, 0);
+    test(S("abcde"), "abcde", 0, 4, 0);
+    test(S("abcde"), "abcde", 0, 5, 0);
+    test(S("abcde"), "abcdeabcde", 0, 0, 0);
+    test(S("abcde"), "abcdeabcde", 0, 1, 0);
+    test(S("abcde"), "abcdeabcde", 0, 5, 0);
+    test(S("abcde"), "abcdeabcde", 0, 9, S::npos);
+    test(S("abcde"), "abcdeabcde", 0, 10, S::npos);
+    test(S("abcde"), "abcdeabcdeabcdeabcde", 0, 0, 0);
+    test(S("abcde"), "abcdeabcdeabcdeabcde", 0, 1, 0);
+    test(S("abcde"), "abcdeabcdeabcdeabcde", 0, 10, S::npos);
+    test(S("abcde"), "abcdeabcdeabcdeabcde", 0, 19, S::npos);
+    test(S("abcde"), "abcdeabcdeabcdeabcde", 0, 20, S::npos);
+    test(S("abcde"), "", 1, 0, 1);
+    test(S("abcde"), "abcde", 1, 0, 1);
+    test(S("abcde"), "abcde", 1, 1, 0);
+    test(S("abcde"), "abcde", 1, 2, 0);
+    test(S("abcde"), "abcde", 1, 4, 0);
+    test(S("abcde"), "abcde", 1, 5, 0);
+    test(S("abcde"), "abcdeabcde", 1, 0, 1);
+    test(S("abcde"), "abcdeabcde", 1, 1, 0);
+    test(S("abcde"), "abcdeabcde", 1, 5, 0);
+    test(S("abcde"), "abcdeabcde", 1, 9, S::npos);
+    test(S("abcde"), "abcdeabcde", 1, 10, S::npos);
+    test(S("abcde"), "abcdeabcdeabcdeabcde", 1, 0, 1);
+    test(S("abcde"), "abcdeabcdeabcdeabcde", 1, 1, 0);
+    test(S("abcde"), "abcdeabcdeabcdeabcde", 1, 10, S::npos);
+    test(S("abcde"), "abcdeabcdeabcdeabcde", 1, 19, S::npos);
+    test(S("abcde"), "abcdeabcdeabcdeabcde", 1, 20, S::npos);
+    test(S("abcde"), "", 2, 0, 2);
+    test(S("abcde"), "abcde", 2, 0, 2);
+    test(S("abcde"), "abcde", 2, 1, 0);
+    test(S("abcde"), "abcde", 2, 2, 0);
+    test(S("abcde"), "abcde", 2, 4, 0);
+    test(S("abcde"), "abcde", 2, 5, 0);
+    test(S("abcde"), "abcdeabcde", 2, 0, 2);
+    test(S("abcde"), "abcdeabcde", 2, 1, 0);
+    test(S("abcde"), "abcdeabcde", 2, 5, 0);
+    test(S("abcde"), "abcdeabcde", 2, 9, S::npos);
+    test(S("abcde"), "abcdeabcde", 2, 10, S::npos);
+    test(S("abcde"), "abcdeabcdeabcdeabcde", 2, 0, 2);
+    test(S("abcde"), "abcdeabcdeabcdeabcde", 2, 1, 0);
+    test(S("abcde"), "abcdeabcdeabcdeabcde", 2, 10, S::npos);
+    test(S("abcde"), "abcdeabcdeabcdeabcde", 2, 19, S::npos);
+    test(S("abcde"), "abcdeabcdeabcdeabcde", 2, 20, S::npos);
+    test(S("abcde"), "", 4, 0, 4);
+    test(S("abcde"), "abcde", 4, 0, 4);
+    test(S("abcde"), "abcde", 4, 1, 0);
+    test(S("abcde"), "abcde", 4, 2, 0);
+    test(S("abcde"), "abcde", 4, 4, 0);
+    test(S("abcde"), "abcde", 4, 5, 0);
+    test(S("abcde"), "abcdeabcde", 4, 0, 4);
+    test(S("abcde"), "abcdeabcde", 4, 1, 0);
+    test(S("abcde"), "abcdeabcde", 4, 5, 0);
+    test(S("abcde"), "abcdeabcde", 4, 9, S::npos);
+    test(S("abcde"), "abcdeabcde", 4, 10, S::npos);
+    test(S("abcde"), "abcdeabcdeabcdeabcde", 4, 0, 4);
+    test(S("abcde"), "abcdeabcdeabcdeabcde", 4, 1, 0);
+    test(S("abcde"), "abcdeabcdeabcdeabcde", 4, 10, S::npos);
+    test(S("abcde"), "abcdeabcdeabcdeabcde", 4, 19, S::npos);
+    test(S("abcde"), "abcdeabcdeabcdeabcde", 4, 20, S::npos);
+    test(S("abcde"), "", 5, 0, 5);
+    test(S("abcde"), "abcde", 5, 0, 5);
+    test(S("abcde"), "abcde", 5, 1, 0);
+    test(S("abcde"), "abcde", 5, 2, 0);
+}
+
+template <class S>
+void test1()
+{
+    test(S("abcde"), "abcde", 5, 4, 0);
+    test(S("abcde"), "abcde", 5, 5, 0);
+    test(S("abcde"), "abcdeabcde", 5, 0, 5);
+    test(S("abcde"), "abcdeabcde", 5, 1, 0);
+    test(S("abcde"), "abcdeabcde", 5, 5, 0);
+    test(S("abcde"), "abcdeabcde", 5, 9, S::npos);
+    test(S("abcde"), "abcdeabcde", 5, 10, S::npos);
+    test(S("abcde"), "abcdeabcdeabcdeabcde", 5, 0, 5);
+    test(S("abcde"), "abcdeabcdeabcdeabcde", 5, 1, 0);
+    test(S("abcde"), "abcdeabcdeabcdeabcde", 5, 10, S::npos);
+    test(S("abcde"), "abcdeabcdeabcdeabcde", 5, 19, S::npos);
+    test(S("abcde"), "abcdeabcdeabcdeabcde", 5, 20, S::npos);
+    test(S("abcde"), "", 6, 0, 5);
+    test(S("abcde"), "abcde", 6, 0, 5);
+    test(S("abcde"), "abcde", 6, 1, 0);
+    test(S("abcde"), "abcde", 6, 2, 0);
+    test(S("abcde"), "abcde", 6, 4, 0);
+    test(S("abcde"), "abcde", 6, 5, 0);
+    test(S("abcde"), "abcdeabcde", 6, 0, 5);
+    test(S("abcde"), "abcdeabcde", 6, 1, 0);
+    test(S("abcde"), "abcdeabcde", 6, 5, 0);
+    test(S("abcde"), "abcdeabcde", 6, 9, S::npos);
+    test(S("abcde"), "abcdeabcde", 6, 10, S::npos);
+    test(S("abcde"), "abcdeabcdeabcdeabcde", 6, 0, 5);
+    test(S("abcde"), "abcdeabcdeabcdeabcde", 6, 1, 0);
+    test(S("abcde"), "abcdeabcdeabcdeabcde", 6, 10, S::npos);
+    test(S("abcde"), "abcdeabcdeabcdeabcde", 6, 19, S::npos);
+    test(S("abcde"), "abcdeabcdeabcdeabcde", 6, 20, S::npos);
+    test(S("abcdeabcde"), "", 0, 0, 0);
+    test(S("abcdeabcde"), "abcde", 0, 0, 0);
+    test(S("abcdeabcde"), "abcde", 0, 1, 0);
+    test(S("abcdeabcde"), "abcde", 0, 2, 0);
+    test(S("abcdeabcde"), "abcde", 0, 4, 0);
+    test(S("abcdeabcde"), "abcde", 0, 5, 0);
+    test(S("abcdeabcde"), "abcdeabcde", 0, 0, 0);
+    test(S("abcdeabcde"), "abcdeabcde", 0, 1, 0);
+    test(S("abcdeabcde"), "abcdeabcde", 0, 5, 0);
+    test(S("abcdeabcde"), "abcdeabcde", 0, 9, 0);
+    test(S("abcdeabcde"), "abcdeabcde", 0, 10, 0);
+    test(S("abcdeabcde"), "abcdeabcdeabcdeabcde", 0, 0, 0);
+    test(S("abcdeabcde"), "abcdeabcdeabcdeabcde", 0, 1, 0);
+    test(S("abcdeabcde"), "abcdeabcdeabcdeabcde", 0, 10, 0);
+    test(S("abcdeabcde"), "abcdeabcdeabcdeabcde", 0, 19, S::npos);
+    test(S("abcdeabcde"), "abcdeabcdeabcdeabcde", 0, 20, S::npos);
+    test(S("abcdeabcde"), "", 1, 0, 1);
+    test(S("abcdeabcde"), "abcde", 1, 0, 1);
+    test(S("abcdeabcde"), "abcde", 1, 1, 0);
+    test(S("abcdeabcde"), "abcde", 1, 2, 0);
+    test(S("abcdeabcde"), "abcde", 1, 4, 0);
+    test(S("abcdeabcde"), "abcde", 1, 5, 0);
+    test(S("abcdeabcde"), "abcdeabcde", 1, 0, 1);
+    test(S("abcdeabcde"), "abcdeabcde", 1, 1, 0);
+    test(S("abcdeabcde"), "abcdeabcde", 1, 5, 0);
+    test(S("abcdeabcde"), "abcdeabcde", 1, 9, 0);
+    test(S("abcdeabcde"), "abcdeabcde", 1, 10, 0);
+    test(S("abcdeabcde"), "abcdeabcdeabcdeabcde", 1, 0, 1);
+    test(S("abcdeabcde"), "abcdeabcdeabcdeabcde", 1, 1, 0);
+    test(S("abcdeabcde"), "abcdeabcdeabcdeabcde", 1, 10, 0);
+    test(S("abcdeabcde"), "abcdeabcdeabcdeabcde", 1, 19, S::npos);
+    test(S("abcdeabcde"), "abcdeabcdeabcdeabcde", 1, 20, S::npos);
+    test(S("abcdeabcde"), "", 5, 0, 5);
+    test(S("abcdeabcde"), "abcde", 5, 0, 5);
+    test(S("abcdeabcde"), "abcde", 5, 1, 5);
+    test(S("abcdeabcde"), "abcde", 5, 2, 5);
+    test(S("abcdeabcde"), "abcde", 5, 4, 5);
+    test(S("abcdeabcde"), "abcde", 5, 5, 5);
+    test(S("abcdeabcde"), "abcdeabcde", 5, 0, 5);
+    test(S("abcdeabcde"), "abcdeabcde", 5, 1, 5);
+    test(S("abcdeabcde"), "abcdeabcde", 5, 5, 5);
+    test(S("abcdeabcde"), "abcdeabcde", 5, 9, 0);
+    test(S("abcdeabcde"), "abcdeabcde", 5, 10, 0);
+    test(S("abcdeabcde"), "abcdeabcdeabcdeabcde", 5, 0, 5);
+    test(S("abcdeabcde"), "abcdeabcdeabcdeabcde", 5, 1, 5);
+    test(S("abcdeabcde"), "abcdeabcdeabcdeabcde", 5, 10, 0);
+    test(S("abcdeabcde"), "abcdeabcdeabcdeabcde", 5, 19, S::npos);
+    test(S("abcdeabcde"), "abcdeabcdeabcdeabcde", 5, 20, S::npos);
+    test(S("abcdeabcde"), "", 9, 0, 9);
+    test(S("abcdeabcde"), "abcde", 9, 0, 9);
+    test(S("abcdeabcde"), "abcde", 9, 1, 5);
+    test(S("abcdeabcde"), "abcde", 9, 2, 5);
+    test(S("abcdeabcde"), "abcde", 9, 4, 5);
+    test(S("abcdeabcde"), "abcde", 9, 5, 5);
+    test(S("abcdeabcde"), "abcdeabcde", 9, 0, 9);
+    test(S("abcdeabcde"), "abcdeabcde", 9, 1, 5);
+    test(S("abcdeabcde"), "abcdeabcde", 9, 5, 5);
+    test(S("abcdeabcde"), "abcdeabcde", 9, 9, 0);
+    test(S("abcdeabcde"), "abcdeabcde", 9, 10, 0);
+    test(S("abcdeabcde"), "abcdeabcdeabcdeabcde", 9, 0, 9);
+    test(S("abcdeabcde"), "abcdeabcdeabcdeabcde", 9, 1, 5);
+    test(S("abcdeabcde"), "abcdeabcdeabcdeabcde", 9, 10, 0);
+    test(S("abcdeabcde"), "abcdeabcdeabcdeabcde", 9, 19, S::npos);
+    test(S("abcdeabcde"), "abcdeabcdeabcdeabcde", 9, 20, S::npos);
+    test(S("abcdeabcde"), "", 10, 0, 10);
+    test(S("abcdeabcde"), "abcde", 10, 0, 10);
+    test(S("abcdeabcde"), "abcde", 10, 1, 5);
+    test(S("abcdeabcde"), "abcde", 10, 2, 5);
+    test(S("abcdeabcde"), "abcde", 10, 4, 5);
+    test(S("abcdeabcde"), "abcde", 10, 5, 5);
+    test(S("abcdeabcde"), "abcdeabcde", 10, 0, 10);
+    test(S("abcdeabcde"), "abcdeabcde", 10, 1, 5);
+}
+
+template <class S>
+void test2()
+{
+    test(S("abcdeabcde"), "abcdeabcde", 10, 5, 5);
+    test(S("abcdeabcde"), "abcdeabcde", 10, 9, 0);
+    test(S("abcdeabcde"), "abcdeabcde", 10, 10, 0);
+    test(S("abcdeabcde"), "abcdeabcdeabcdeabcde", 10, 0, 10);
+    test(S("abcdeabcde"), "abcdeabcdeabcdeabcde", 10, 1, 5);
+    test(S("abcdeabcde"), "abcdeabcdeabcdeabcde", 10, 10, 0);
+    test(S("abcdeabcde"), "abcdeabcdeabcdeabcde", 10, 19, S::npos);
+    test(S("abcdeabcde"), "abcdeabcdeabcdeabcde", 10, 20, S::npos);
+    test(S("abcdeabcde"), "", 11, 0, 10);
+    test(S("abcdeabcde"), "abcde", 11, 0, 10);
+    test(S("abcdeabcde"), "abcde", 11, 1, 5);
+    test(S("abcdeabcde"), "abcde", 11, 2, 5);
+    test(S("abcdeabcde"), "abcde", 11, 4, 5);
+    test(S("abcdeabcde"), "abcde", 11, 5, 5);
+    test(S("abcdeabcde"), "abcdeabcde", 11, 0, 10);
+    test(S("abcdeabcde"), "abcdeabcde", 11, 1, 5);
+    test(S("abcdeabcde"), "abcdeabcde", 11, 5, 5);
+    test(S("abcdeabcde"), "abcdeabcde", 11, 9, 0);
+    test(S("abcdeabcde"), "abcdeabcde", 11, 10, 0);
+    test(S("abcdeabcde"), "abcdeabcdeabcdeabcde", 11, 0, 10);
+    test(S("abcdeabcde"), "abcdeabcdeabcdeabcde", 11, 1, 5);
+    test(S("abcdeabcde"), "abcdeabcdeabcdeabcde", 11, 10, 0);
+    test(S("abcdeabcde"), "abcdeabcdeabcdeabcde", 11, 19, S::npos);
+    test(S("abcdeabcde"), "abcdeabcdeabcdeabcde", 11, 20, S::npos);
+    test(S("abcdeabcdeabcdeabcde"), "", 0, 0, 0);
+    test(S("abcdeabcdeabcdeabcde"), "abcde", 0, 0, 0);
+    test(S("abcdeabcdeabcdeabcde"), "abcde", 0, 1, 0);
+    test(S("abcdeabcdeabcdeabcde"), "abcde", 0, 2, 0);
+    test(S("abcdeabcdeabcdeabcde"), "abcde", 0, 4, 0);
+    test(S("abcdeabcdeabcdeabcde"), "abcde", 0, 5, 0);
+    test(S("abcdeabcdeabcdeabcde"), "abcdeabcde", 0, 0, 0);
+    test(S("abcdeabcdeabcdeabcde"), "abcdeabcde", 0, 1, 0);
+    test(S("abcdeabcdeabcdeabcde"), "abcdeabcde", 0, 5, 0);
+    test(S("abcdeabcdeabcdeabcde"), "abcdeabcde", 0, 9, 0);
+    test(S("abcdeabcdeabcdeabcde"), "abcdeabcde", 0, 10, 0);
+    test(S("abcdeabcdeabcdeabcde"), "abcdeabcdeabcdeabcde", 0, 0, 0);
+    test(S("abcdeabcdeabcdeabcde"), "abcdeabcdeabcdeabcde", 0, 1, 0);
+    test(S("abcdeabcdeabcdeabcde"), "abcdeabcdeabcdeabcde", 0, 10, 0);
+    test(S("abcdeabcdeabcdeabcde"), "abcdeabcdeabcdeabcde", 0, 19, 0);
+    test(S("abcdeabcdeabcdeabcde"), "abcdeabcdeabcdeabcde", 0, 20, 0);
+    test(S("abcdeabcdeabcdeabcde"), "", 1, 0, 1);
+    test(S("abcdeabcdeabcdeabcde"), "abcde", 1, 0, 1);
+    test(S("abcdeabcdeabcdeabcde"), "abcde", 1, 1, 0);
+    test(S("abcdeabcdeabcdeabcde"), "abcde", 1, 2, 0);
+    test(S("abcdeabcdeabcdeabcde"), "abcde", 1, 4, 0);
+    test(S("abcdeabcdeabcdeabcde"), "abcde", 1, 5, 0);
+    test(S("abcdeabcdeabcdeabcde"), "abcdeabcde", 1, 0, 1);
+    test(S("abcdeabcdeabcdeabcde"), "abcdeabcde", 1, 1, 0);
+    test(S("abcdeabcdeabcdeabcde"), "abcdeabcde", 1, 5, 0);
+    test(S("abcdeabcdeabcdeabcde"), "abcdeabcde", 1, 9, 0);
+    test(S("abcdeabcdeabcdeabcde"), "abcdeabcde", 1, 10, 0);
+    test(S("abcdeabcdeabcdeabcde"), "abcdeabcdeabcdeabcde", 1, 0, 1);
+    test(S("abcdeabcdeabcdeabcde"), "abcdeabcdeabcdeabcde", 1, 1, 0);
+    test(S("abcdeabcdeabcdeabcde"), "abcdeabcdeabcdeabcde", 1, 10, 0);
+    test(S("abcdeabcdeabcdeabcde"), "abcdeabcdeabcdeabcde", 1, 19, 0);
+    test(S("abcdeabcdeabcdeabcde"), "abcdeabcdeabcdeabcde", 1, 20, 0);
+    test(S("abcdeabcdeabcdeabcde"), "", 10, 0, 10);
+    test(S("abcdeabcdeabcdeabcde"), "abcde", 10, 0, 10);
+    test(S("abcdeabcdeabcdeabcde"), "abcde", 10, 1, 10);
+    test(S("abcdeabcdeabcdeabcde"), "abcde", 10, 2, 10);
+    test(S("abcdeabcdeabcdeabcde"), "abcde", 10, 4, 10);
+    test(S("abcdeabcdeabcdeabcde"), "abcde", 10, 5, 10);
+    test(S("abcdeabcdeabcdeabcde"), "abcdeabcde", 10, 0, 10);
+    test(S("abcdeabcdeabcdeabcde"), "abcdeabcde", 10, 1, 10);
+    test(S("abcdeabcdeabcdeabcde"), "abcdeabcde", 10, 5, 10);
+    test(S("abcdeabcdeabcdeabcde"), "abcdeabcde", 10, 9, 10);
+    test(S("abcdeabcdeabcdeabcde"), "abcdeabcde", 10, 10, 10);
+    test(S("abcdeabcdeabcdeabcde"), "abcdeabcdeabcdeabcde", 10, 0, 10);
+    test(S("abcdeabcdeabcdeabcde"), "abcdeabcdeabcdeabcde", 10, 1, 10);
+    test(S("abcdeabcdeabcdeabcde"), "abcdeabcdeabcdeabcde", 10, 10, 10);
+    test(S("abcdeabcdeabcdeabcde"), "abcdeabcdeabcdeabcde", 10, 19, 0);
+    test(S("abcdeabcdeabcdeabcde"), "abcdeabcdeabcdeabcde", 10, 20, 0);
+    test(S("abcdeabcdeabcdeabcde"), "", 19, 0, 19);
+    test(S("abcdeabcdeabcdeabcde"), "abcde", 19, 0, 19);
+    test(S("abcdeabcdeabcdeabcde"), "abcde", 19, 1, 15);
+    test(S("abcdeabcdeabcdeabcde"), "abcde", 19, 2, 15);
+    test(S("abcdeabcdeabcdeabcde"), "abcde", 19, 4, 15);
+    test(S("abcdeabcdeabcdeabcde"), "abcde", 19, 5, 15);
+    test(S("abcdeabcdeabcdeabcde"), "abcdeabcde", 19, 0, 19);
+    test(S("abcdeabcdeabcdeabcde"), "abcdeabcde", 19, 1, 15);
+    test(S("abcdeabcdeabcdeabcde"), "abcdeabcde", 19, 5, 15);
+    test(S("abcdeabcdeabcdeabcde"), "abcdeabcde", 19, 9, 10);
+    test(S("abcdeabcdeabcdeabcde"), "abcdeabcde", 19, 10, 10);
+    test(S("abcdeabcdeabcdeabcde"), "abcdeabcdeabcdeabcde", 19, 0, 19);
+    test(S("abcdeabcdeabcdeabcde"), "abcdeabcdeabcdeabcde", 19, 1, 15);
+    test(S("abcdeabcdeabcdeabcde"), "abcdeabcdeabcdeabcde", 19, 10, 10);
+    test(S("abcdeabcdeabcdeabcde"), "abcdeabcdeabcdeabcde", 19, 19, 0);
+    test(S("abcdeabcdeabcdeabcde"), "abcdeabcdeabcdeabcde", 19, 20, 0);
+    test(S("abcdeabcdeabcdeabcde"), "", 20, 0, 20);
+    test(S("abcdeabcdeabcdeabcde"), "abcde", 20, 0, 20);
+    test(S("abcdeabcdeabcdeabcde"), "abcde", 20, 1, 15);
+    test(S("abcdeabcdeabcdeabcde"), "abcde", 20, 2, 15);
+    test(S("abcdeabcdeabcdeabcde"), "abcde", 20, 4, 15);
+    test(S("abcdeabcdeabcdeabcde"), "abcde", 20, 5, 15);
+    test(S("abcdeabcdeabcdeabcde"), "abcdeabcde", 20, 0, 20);
+    test(S("abcdeabcdeabcdeabcde"), "abcdeabcde", 20, 1, 15);
+    test(S("abcdeabcdeabcdeabcde"), "abcdeabcde", 20, 5, 15);
+    test(S("abcdeabcdeabcdeabcde"), "abcdeabcde", 20, 9, 10);
+    test(S("abcdeabcdeabcdeabcde"), "abcdeabcde", 20, 10, 10);
+    test(S("abcdeabcdeabcdeabcde"), "abcdeabcdeabcdeabcde", 20, 0, 20);
+}
+
+template <class S>
+void test3()
+{
+    test(S("abcdeabcdeabcdeabcde"), "abcdeabcdeabcdeabcde", 20, 1, 15);
+    test(S("abcdeabcdeabcdeabcde"), "abcdeabcdeabcdeabcde", 20, 10, 10);
+    test(S("abcdeabcdeabcdeabcde"), "abcdeabcdeabcdeabcde", 20, 19, 0);
+    test(S("abcdeabcdeabcdeabcde"), "abcdeabcdeabcdeabcde", 20, 20, 0);
+    test(S("abcdeabcdeabcdeabcde"), "", 21, 0, 20);
+    test(S("abcdeabcdeabcdeabcde"), "abcde", 21, 0, 20);
+    test(S("abcdeabcdeabcdeabcde"), "abcde", 21, 1, 15);
+    test(S("abcdeabcdeabcdeabcde"), "abcde", 21, 2, 15);
+    test(S("abcdeabcdeabcdeabcde"), "abcde", 21, 4, 15);
+    test(S("abcdeabcdeabcdeabcde"), "abcde", 21, 5, 15);
+    test(S("abcdeabcdeabcdeabcde"), "abcdeabcde", 21, 0, 20);
+    test(S("abcdeabcdeabcdeabcde"), "abcdeabcde", 21, 1, 15);
+    test(S("abcdeabcdeabcdeabcde"), "abcdeabcde", 21, 5, 15);
+    test(S("abcdeabcdeabcdeabcde"), "abcdeabcde", 21, 9, 10);
+    test(S("abcdeabcdeabcdeabcde"), "abcdeabcde", 21, 10, 10);
+    test(S("abcdeabcdeabcdeabcde"), "abcdeabcdeabcdeabcde", 21, 0, 20);
+    test(S("abcdeabcdeabcdeabcde"), "abcdeabcdeabcdeabcde", 21, 1, 15);
+    test(S("abcdeabcdeabcdeabcde"), "abcdeabcdeabcdeabcde", 21, 10, 10);
+    test(S("abcdeabcdeabcdeabcde"), "abcdeabcdeabcdeabcde", 21, 19, 0);
+    test(S("abcdeabcdeabcdeabcde"), "abcdeabcdeabcdeabcde", 21, 20, 0);
+}
+
+int main()
+{
+    {
+    typedef std::experimental::string_view S;
+    test0<S>();
+    test1<S>();
+    test2<S>();
+    test3<S>();
+    }
+
+#if _LIBCPP_STD_VER > 11
+    {
+    typedef std::experimental::basic_string_view<char, constexpr_char_traits<char>> SV;
+    constexpr SV  sv1;
+    constexpr SV  sv2 { "abcde", 5 };
+
+    static_assert (sv1.rfind( "",      0, 0 ) == 0, "" );
+    static_assert (sv1.rfind( "abcde", 0, 0 ) == 0, "" );
+    static_assert (sv1.rfind( "abcde", 0, 1 ) == SV::npos, "" );
+    static_assert (sv2.rfind( "",      0, 0 ) == 0, "" );
+    static_assert (sv2.rfind( "abcde", 0, 0 ) == 0, "" );
+    static_assert (sv2.rfind( "abcde", 0, 1 ) == 0, "" );
+    }
+#endif
+}

Added: libcxx/trunk/test/std/experimental/string.view/string.view.find/rfind_string_view_size.pass.cpp
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/test/std/experimental/string.view/string.view.find/rfind_string_view_size.pass.cpp?rev=224658&view=auto
==============================================================================
--- libcxx/trunk/test/std/experimental/string.view/string.view.find/rfind_string_view_size.pass.cpp (added)
+++ libcxx/trunk/test/std/experimental/string.view/string.view.find/rfind_string_view_size.pass.cpp Fri Dec 19 19:40:03 2014
@@ -0,0 +1,164 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <string_view>
+
+// constexpr size_type rfind(const basic_string& str, size_type pos = npos) const;
+
+#include <experimental/string_view>
+#include <cassert>
+
+#include "constexpr_char_traits.hpp"
+
+template <class S>
+void
+test(const S& s, const S& str, typename S::size_type pos, typename S::size_type x)
+{
+    assert(s.rfind(str, pos) == x);
+    if (x != S::npos)
+        assert(x <= pos && x + str.size() <= s.size());
+}
+
+template <class S>
+void
+test(const S& s, const S& str, typename S::size_type x)
+{
+    assert(s.rfind(str) == x);
+    if (x != S::npos)
+        assert(0 <= x && x + str.size() <= s.size());
+}
+
+template <class S>
+void test0()
+{
+    test(S(""), S(""), 0, 0);
+    test(S(""), S("abcde"), 0, S::npos);
+    test(S(""), S("abcdeabcde"), 0, S::npos);
+    test(S(""), S("abcdeabcdeabcdeabcde"), 0, S::npos);
+    test(S(""), S(""), 1, 0);
+    test(S(""), S("abcde"), 1, S::npos);
+    test(S(""), S("abcdeabcde"), 1, S::npos);
+    test(S(""), S("abcdeabcdeabcdeabcde"), 1, S::npos);
+    test(S("abcde"), S(""), 0, 0);
+    test(S("abcde"), S("abcde"), 0, 0);
+    test(S("abcde"), S("abcdeabcde"), 0, S::npos);
+    test(S("abcde"), S("abcdeabcdeabcdeabcde"), 0, S::npos);
+    test(S("abcde"), S(""), 1, 1);
+    test(S("abcde"), S("abcde"), 1, 0);
+    test(S("abcde"), S("abcdeabcde"), 1, S::npos);
+    test(S("abcde"), S("abcdeabcdeabcdeabcde"), 1, S::npos);
+    test(S("abcde"), S(""), 2, 2);
+    test(S("abcde"), S("abcde"), 2, 0);
+    test(S("abcde"), S("abcdeabcde"), 2, S::npos);
+    test(S("abcde"), S("abcdeabcdeabcdeabcde"), 2, S::npos);
+    test(S("abcde"), S(""), 4, 4);
+    test(S("abcde"), S("abcde"), 4, 0);
+    test(S("abcde"), S("abcdeabcde"), 4, S::npos);
+    test(S("abcde"), S("abcdeabcdeabcdeabcde"), 4, S::npos);
+    test(S("abcde"), S(""), 5, 5);
+    test(S("abcde"), S("abcde"), 5, 0);
+    test(S("abcde"), S("abcdeabcde"), 5, S::npos);
+    test(S("abcde"), S("abcdeabcdeabcdeabcde"), 5, S::npos);
+    test(S("abcde"), S(""), 6, 5);
+    test(S("abcde"), S("abcde"), 6, 0);
+    test(S("abcde"), S("abcdeabcde"), 6, S::npos);
+    test(S("abcde"), S("abcdeabcdeabcdeabcde"), 6, S::npos);
+    test(S("abcdeabcde"), S(""), 0, 0);
+    test(S("abcdeabcde"), S("abcde"), 0, 0);
+    test(S("abcdeabcde"), S("abcdeabcde"), 0, 0);
+    test(S("abcdeabcde"), S("abcdeabcdeabcdeabcde"), 0, S::npos);
+    test(S("abcdeabcde"), S(""), 1, 1);
+    test(S("abcdeabcde"), S("abcde"), 1, 0);
+    test(S("abcdeabcde"), S("abcdeabcde"), 1, 0);
+    test(S("abcdeabcde"), S("abcdeabcdeabcdeabcde"), 1, S::npos);
+    test(S("abcdeabcde"), S(""), 5, 5);
+    test(S("abcdeabcde"), S("abcde"), 5, 5);
+    test(S("abcdeabcde"), S("abcdeabcde"), 5, 0);
+    test(S("abcdeabcde"), S("abcdeabcdeabcdeabcde"), 5, S::npos);
+    test(S("abcdeabcde"), S(""), 9, 9);
+    test(S("abcdeabcde"), S("abcde"), 9, 5);
+    test(S("abcdeabcde"), S("abcdeabcde"), 9, 0);
+    test(S("abcdeabcde"), S("abcdeabcdeabcdeabcde"), 9, S::npos);
+    test(S("abcdeabcde"), S(""), 10, 10);
+    test(S("abcdeabcde"), S("abcde"), 10, 5);
+    test(S("abcdeabcde"), S("abcdeabcde"), 10, 0);
+    test(S("abcdeabcde"), S("abcdeabcdeabcdeabcde"), 10, S::npos);
+    test(S("abcdeabcde"), S(""), 11, 10);
+    test(S("abcdeabcde"), S("abcde"), 11, 5);
+    test(S("abcdeabcde"), S("abcdeabcde"), 11, 0);
+    test(S("abcdeabcde"), S("abcdeabcdeabcdeabcde"), 11, S::npos);
+    test(S("abcdeabcdeabcdeabcde"), S(""), 0, 0);
+    test(S("abcdeabcdeabcdeabcde"), S("abcde"), 0, 0);
+    test(S("abcdeabcdeabcdeabcde"), S("abcdeabcde"), 0, 0);
+    test(S("abcdeabcdeabcdeabcde"), S("abcdeabcdeabcdeabcde"), 0, 0);
+    test(S("abcdeabcdeabcdeabcde"), S(""), 1, 1);
+    test(S("abcdeabcdeabcdeabcde"), S("abcde"), 1, 0);
+    test(S("abcdeabcdeabcdeabcde"), S("abcdeabcde"), 1, 0);
+    test(S("abcdeabcdeabcdeabcde"), S("abcdeabcdeabcdeabcde"), 1, 0);
+    test(S("abcdeabcdeabcdeabcde"), S(""), 10, 10);
+    test(S("abcdeabcdeabcdeabcde"), S("abcde"), 10, 10);
+    test(S("abcdeabcdeabcdeabcde"), S("abcdeabcde"), 10, 10);
+    test(S("abcdeabcdeabcdeabcde"), S("abcdeabcdeabcdeabcde"), 10, 0);
+    test(S("abcdeabcdeabcdeabcde"), S(""), 19, 19);
+    test(S("abcdeabcdeabcdeabcde"), S("abcde"), 19, 15);
+    test(S("abcdeabcdeabcdeabcde"), S("abcdeabcde"), 19, 10);
+    test(S("abcdeabcdeabcdeabcde"), S("abcdeabcdeabcdeabcde"), 19, 0);
+    test(S("abcdeabcdeabcdeabcde"), S(""), 20, 20);
+    test(S("abcdeabcdeabcdeabcde"), S("abcde"), 20, 15);
+    test(S("abcdeabcdeabcdeabcde"), S("abcdeabcde"), 20, 10);
+    test(S("abcdeabcdeabcdeabcde"), S("abcdeabcdeabcdeabcde"), 20, 0);
+    test(S("abcdeabcdeabcdeabcde"), S(""), 21, 20);
+    test(S("abcdeabcdeabcdeabcde"), S("abcde"), 21, 15);
+    test(S("abcdeabcdeabcdeabcde"), S("abcdeabcde"), 21, 10);
+    test(S("abcdeabcdeabcdeabcde"), S("abcdeabcdeabcdeabcde"), 21, 0);
+}
+
+template <class S>
+void test1()
+{
+    test(S(""), S(""), 0);
+    test(S(""), S("abcde"), S::npos);
+    test(S(""), S("abcdeabcde"), S::npos);
+    test(S(""), S("abcdeabcdeabcdeabcde"), S::npos);
+    test(S("abcde"), S(""), 5);
+    test(S("abcde"), S("abcde"), 0);
+    test(S("abcde"), S("abcdeabcde"), S::npos);
+    test(S("abcde"), S("abcdeabcdeabcdeabcde"), S::npos);
+    test(S("abcdeabcde"), S(""), 10);
+    test(S("abcdeabcde"), S("abcde"), 5);
+    test(S("abcdeabcde"), S("abcdeabcde"), 0);
+    test(S("abcdeabcde"), S("abcdeabcdeabcdeabcde"), S::npos);
+    test(S("abcdeabcdeabcdeabcde"), S(""), 20);
+    test(S("abcdeabcdeabcdeabcde"), S("abcde"), 15);
+    test(S("abcdeabcdeabcdeabcde"), S("abcdeabcde"), 10);
+    test(S("abcdeabcdeabcdeabcde"), S("abcdeabcdeabcdeabcde"), 0);
+}
+
+int main()
+{
+    {
+    typedef std::experimental::string_view S;
+    test0<S>();
+    test1<S>();
+    }
+
+#if _LIBCPP_STD_VER > 11
+    {
+    typedef std::experimental::basic_string_view<char, constexpr_char_traits<char>> SV;
+    constexpr SV  sv1;
+    constexpr SV  sv2 { "abcde", 5 };
+
+    static_assert (sv1.rfind(sv1) == 0, "" );
+    static_assert (sv1.rfind(sv2) == SV::npos, "" );
+    static_assert (sv2.rfind(sv1) == 5, "" );
+    static_assert (sv2.rfind(sv2) == 0, "" );
+    static_assert (sv2.rfind(sv2, 1) == 0, "" );
+    }
+#endif
+}

Added: libcxx/trunk/test/std/experimental/string.view/string.view.hash/string_view.pass.cpp
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/test/std/experimental/string.view/string.view.hash/string_view.pass.cpp?rev=224658&view=auto
==============================================================================
--- libcxx/trunk/test/std/experimental/string.view/string.view.hash/string_view.pass.cpp (added)
+++ libcxx/trunk/test/std/experimental/string.view/string.view.hash/string_view.pass.cpp Fri Dec 19 19:40:03 2014
@@ -0,0 +1,55 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <functional>
+
+// template <class T>
+// struct hash
+//     : public unary_function<T, size_t>
+// {
+//     size_t operator()(T val) const;
+// };
+
+// Not very portable
+
+#include <experimental/string_view>
+#include <cassert>
+#include <type_traits>
+
+using std::experimental::string_view;
+
+template <class T>
+void
+test()
+{
+    typedef std::hash<T> H;
+    static_assert((std::is_base_of<std::unary_function<T, std::size_t>,
+                                   H>::value), "");
+    H h;
+//     std::string g1 = "1234567890";
+//     std::string g2 = "1234567891";
+    typedef typename T::value_type char_type;
+    char_type g1 [ 10 ];
+    char_type g2 [ 10 ];
+    for ( int i = 0; i < 10; ++i )
+        g1[i] = g2[9-i] = '0' + i;
+    T s1(g1, 10);
+    T s2(g2, 10);
+    assert(h(s1) != h(s2));
+}
+
+int main()
+{
+    test<std::experimental::string_view>();
+#ifndef _LIBCPP_HAS_NO_UNICODE_CHARS
+    test<std::experimental::u16string_view>();
+    test<std::experimental::u32string_view>();
+#endif  // _LIBCPP_HAS_NO_UNICODE_CHARS
+    test<std::experimental::wstring_view>();
+}

Added: libcxx/trunk/test/std/experimental/string.view/string.view.io/stream_insert.pass.cpp
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/test/std/experimental/string.view/string.view.io/stream_insert.pass.cpp?rev=224658&view=auto
==============================================================================
--- libcxx/trunk/test/std/experimental/string.view/string.view.io/stream_insert.pass.cpp (added)
+++ libcxx/trunk/test/std/experimental/string.view/string.view.io/stream_insert.pass.cpp Fri Dec 19 19:40:03 2014
@@ -0,0 +1,58 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <string>
+
+// template<class charT, class traits, class Allocator>
+//   basic_ostream<charT, traits>&
+//   operator<<(basic_ostream<charT, traits>& os,
+//              const basic_string_view<charT,traits> str);
+
+#include <experimental/string_view>
+#include <sstream>
+#include <cassert>
+
+using std::experimental::string_view;
+using std::experimental::wstring_view;
+
+int main()
+{
+    {
+        std::ostringstream out;
+        string_view sv("some text");
+        out << sv;
+        assert(out.good());
+        assert(sv == out.str());
+    }
+    {
+        std::ostringstream out;
+        std::string s("some text");
+        string_view sv(s);
+        out.width(12);
+        out << sv;
+        assert(out.good());
+        assert("   " + s == out.str());
+    }
+    {
+        std::wostringstream out;
+        wstring_view sv(L"some text");
+        out << sv;
+        assert(out.good());
+        assert(sv == out.str());
+    }
+    {
+        std::wostringstream out;
+        std::wstring s(L"some text");
+        wstring_view sv(s);
+        out.width(12);
+        out << sv;
+        assert(out.good());
+        assert(L"   " + s == out.str());
+    }
+}

Added: libcxx/trunk/test/std/experimental/string.view/string.view.iterators/begin.pass.cpp
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/test/std/experimental/string.view/string.view.iterators/begin.pass.cpp?rev=224658&view=auto
==============================================================================
--- libcxx/trunk/test/std/experimental/string.view/string.view.iterators/begin.pass.cpp (added)
+++ libcxx/trunk/test/std/experimental/string.view/string.view.iterators/begin.pass.cpp Fri Dec 19 19:40:03 2014
@@ -0,0 +1,77 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <string_view>
+
+// constexpr const_iterator begin() const;
+
+#include <experimental/string_view>
+#include <cassert>
+
+template <class S>
+void
+test(S s)
+{
+    const S& cs = s;
+    typename S::iterator b = s.begin();
+    typename S::const_iterator cb1 = cs.begin();
+    typename S::const_iterator cb2 = s.cbegin();
+    if (!s.empty())
+    {
+        assert(   *b ==  s[0]);
+        assert(  &*b == &s[0]);
+        assert( *cb1 ==  s[0]);
+        assert(&*cb1 == &s[0]);
+        assert( *cb2 ==  s[0]);
+        assert(&*cb2 == &s[0]);
+        
+    }
+    assert(  b == cb1);
+    assert(  b == cb2);
+    assert(cb1 == cb2);
+}
+
+
+int main()
+{
+    typedef std::experimental::string_view    string_view;
+    typedef std::experimental::u16string_view u16string_view;
+    typedef std::experimental::u32string_view u32string_view;
+    typedef std::experimental::wstring_view   wstring_view;
+
+    test(string_view   ());
+    test(u16string_view());
+    test(u32string_view());
+    test(wstring_view  ());
+    test(string_view   ( "123"));
+    test(wstring_view  (L"123"));
+#if __cplusplus >= 201103L
+    test(u16string_view{u"123"});
+    test(u32string_view{U"123"});
+#endif
+
+#if _LIBCPP_STD_VER > 11
+    {
+    constexpr string_view       sv { "123", 3 };
+    constexpr u16string_view u16sv {u"123", 3 };
+    constexpr u32string_view u32sv {U"123", 3 };
+    constexpr wstring_view     wsv {L"123", 3 };
+    
+    static_assert (    *sv.begin() ==    sv[0], "" );
+    static_assert ( *u16sv.begin() == u16sv[0], "" );
+    static_assert ( *u32sv.begin() == u32sv[0], "" );
+    static_assert (   *wsv.begin() ==   wsv[0], "" );
+
+    static_assert (    *sv.cbegin() ==    sv[0], "" );
+    static_assert ( *u16sv.cbegin() == u16sv[0], "" );
+    static_assert ( *u32sv.cbegin() == u32sv[0], "" );
+    static_assert (   *wsv.cbegin() ==   wsv[0], "" );
+    }
+#endif
+}

Added: libcxx/trunk/test/std/experimental/string.view/string.view.iterators/end.pass.cpp
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/test/std/experimental/string.view/string.view.iterators/end.pass.cpp?rev=224658&view=auto
==============================================================================
--- libcxx/trunk/test/std/experimental/string.view/string.view.iterators/end.pass.cpp (added)
+++ libcxx/trunk/test/std/experimental/string.view/string.view.iterators/end.pass.cpp Fri Dec 19 19:40:03 2014
@@ -0,0 +1,85 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <string_view>
+
+// constexpr const_iterator end() const;
+
+#include <experimental/string_view>
+#include <cassert>
+
+template <class S>
+void
+test(S s)
+{
+    const S& cs = s;
+    typename S::iterator e = s.end();
+    typename S::const_iterator ce1 = cs.end();
+    typename S::const_iterator ce2 = s.cend();
+
+    if (s.empty())
+    {
+        assert(  e ==  s.begin());
+        assert(ce1 == cs.begin());
+        assert(ce2 ==  s.begin());
+    }
+    else
+    {
+        assert(  e !=  s.begin());
+        assert(ce1 != cs.begin());
+        assert(ce2 !=  s.begin());
+    }
+    
+    assert(  e -  s.begin() == s.size());
+    assert(ce1 - cs.begin() == cs.size());
+    assert(ce2 - s.cbegin() == s.size());
+
+    assert(  e == ce1);
+    assert(  e == ce2);
+    assert(ce1 == ce2);
+}
+
+
+int main()
+{
+    typedef std::experimental::string_view    string_view;
+    typedef std::experimental::u16string_view u16string_view;
+    typedef std::experimental::u32string_view u32string_view;
+    typedef std::experimental::wstring_view   wstring_view;
+
+    test(string_view   ());
+    test(u16string_view());
+    test(u32string_view());
+    test(wstring_view  ());
+    test(string_view   ( "123"));
+    test(wstring_view  (L"123"));
+#if __cplusplus >= 201103L
+    test(u16string_view{u"123"});
+    test(u32string_view{U"123"});
+#endif
+
+#if _LIBCPP_STD_VER > 11
+    {
+    constexpr string_view       sv { "123", 3 };
+    constexpr u16string_view u16sv {u"123", 3 };
+    constexpr u32string_view u32sv {U"123", 3 };
+    constexpr wstring_view     wsv {L"123", 3 };
+    
+    static_assert (    sv.begin() !=    sv.end(), "" );
+    static_assert ( u16sv.begin() != u16sv.end(), "" );
+    static_assert ( u32sv.begin() != u32sv.end(), "" );
+    static_assert (   wsv.begin() !=   wsv.end(), "" );
+
+    static_assert (    sv.begin() !=    sv.cend(), "" );
+    static_assert ( u16sv.begin() != u16sv.cend(), "" );
+    static_assert ( u32sv.begin() != u32sv.cend(), "" );
+    static_assert (   wsv.begin() !=   wsv.cend(), "" );
+    }
+#endif
+}

Added: libcxx/trunk/test/std/experimental/string.view/string.view.iterators/rbegin.pass.cpp
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/test/std/experimental/string.view/string.view.iterators/rbegin.pass.cpp?rev=224658&view=auto
==============================================================================
--- libcxx/trunk/test/std/experimental/string.view/string.view.iterators/rbegin.pass.cpp (added)
+++ libcxx/trunk/test/std/experimental/string.view/string.view.iterators/rbegin.pass.cpp Fri Dec 19 19:40:03 2014
@@ -0,0 +1,59 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <string_view>
+
+// const_iterator rbegin() const;
+
+#include <experimental/string_view>
+#include <cassert>
+
+template <class S>
+void
+test(S s)
+{
+    const S& cs = s;
+    typename S::reverse_iterator b = s.rbegin();
+    typename S::const_reverse_iterator cb1 = cs.rbegin();
+    typename S::const_reverse_iterator cb2 = s.crbegin();
+    if (!s.empty())
+    {
+        const size_t last = s.size() - 1;
+        assert(   *b ==  s[last]);
+        assert(  &*b == &s[last]);
+        assert( *cb1 ==  s[last]);
+        assert(&*cb1 == &s[last]);
+        assert( *cb2 ==  s[last]);
+        assert(&*cb2 == &s[last]);
+        
+    }
+    assert(  b == cb1);
+    assert(  b == cb2);
+    assert(cb1 == cb2);
+}
+
+
+int main()
+{
+    typedef std::experimental::string_view    string_view;
+    typedef std::experimental::u16string_view u16string_view;
+    typedef std::experimental::u32string_view u32string_view;
+    typedef std::experimental::wstring_view   wstring_view;
+
+    test(string_view   ());
+    test(u16string_view());
+    test(u32string_view());
+    test(wstring_view  ());
+    test(string_view   ( "123"));
+    test(wstring_view  (L"123"));
+#if __cplusplus >= 201103L
+    test(u16string_view{u"123"});
+    test(u32string_view{U"123"});
+#endif
+}

Added: libcxx/trunk/test/std/experimental/string.view/string.view.iterators/rend.pass.cpp
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/test/std/experimental/string.view/string.view.iterators/rend.pass.cpp?rev=224658&view=auto
==============================================================================
--- libcxx/trunk/test/std/experimental/string.view/string.view.iterators/rend.pass.cpp (added)
+++ libcxx/trunk/test/std/experimental/string.view/string.view.iterators/rend.pass.cpp Fri Dec 19 19:40:03 2014
@@ -0,0 +1,66 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <string_view>
+
+// constexpr const_iterator rend() const;
+
+#include <experimental/string_view>
+#include <cassert>
+
+template <class S>
+void
+test(S s)
+{
+    const S& cs = s;
+    typename S::reverse_iterator e = s.rend();
+    typename S::const_reverse_iterator ce1 = cs.rend();
+    typename S::const_reverse_iterator ce2 = s.crend();
+
+    if (s.empty())
+    {
+        assert(  e ==  s.rbegin());
+        assert(ce1 == cs.rbegin());
+        assert(ce2 ==  s.rbegin());
+    }
+    else
+    {
+        assert(  e !=  s.rbegin());
+        assert(ce1 != cs.rbegin());
+        assert(ce2 !=  s.rbegin());
+    }
+    
+    assert(  e -  s.rbegin() == s.size());
+    assert(ce1 - cs.rbegin() == cs.size());
+    assert(ce2 - s.crbegin() == s.size());
+
+    assert(  e == ce1);
+    assert(  e == ce2);
+    assert(ce1 == ce2);
+}
+
+
+int main()
+{
+    typedef std::experimental::string_view    string_view;
+    typedef std::experimental::u16string_view u16string_view;
+    typedef std::experimental::u32string_view u32string_view;
+    typedef std::experimental::wstring_view   wstring_view;
+    
+    test(string_view   ());
+    test(u16string_view());
+    test(u32string_view());
+    test(wstring_view  ());
+    test(string_view   ( "123"));
+    test(wstring_view  (L"123"));
+#if __cplusplus >= 201103L
+    test(u16string_view{u"123"});
+    test(u32string_view{U"123"});
+#endif
+}

Added: libcxx/trunk/test/std/experimental/string.view/string.view.modifiers/clear.pass.cpp
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/test/std/experimental/string.view/string.view.modifiers/clear.pass.cpp?rev=224658&view=auto
==============================================================================
--- libcxx/trunk/test/std/experimental/string.view/string.view.modifiers/clear.pass.cpp (added)
+++ libcxx/trunk/test/std/experimental/string.view/string.view.modifiers/clear.pass.cpp Fri Dec 19 19:40:03 2014
@@ -0,0 +1,65 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+
+// <string_view>
+
+// void clear() noexcept
+
+#include <experimental/string_view>
+#include <cassert>
+
+template<typename CharT>
+void test ( const CharT *s, size_t len ) {
+    typedef std::experimental::basic_string_view<CharT> SV;
+    {
+    SV sv1 ( s );
+    assert ( sv1.size() == len );
+    assert ( sv1.data() == s );
+
+    sv1.clear ();
+    assert ( sv1.data() == nullptr );
+    assert ( sv1.size() == 0 );
+    assert ( sv1 == SV());
+    }
+}
+
+#if _LIBCPP_STD_VER > 11
+constexpr size_t test_ce ( size_t n ) {
+    typedef std::experimental::basic_string_view<char> SV;
+    SV sv1{ "ABCDEFGHIJKL", n };
+    sv1.clear();
+    return sv1.size();
+}
+#endif
+
+int main () {
+    test ( "ABCDE", 5 );
+    test ( "a", 1 );
+    test ( "", 0 );
+
+    test ( L"ABCDE", 5 );
+    test ( L"a", 1 );
+    test ( L"", 0 );
+
+#if __cplusplus >= 201103L
+    test ( u"ABCDE", 5 );
+    test ( u"a", 1 );
+    test ( u"", 0 );
+
+    test ( U"ABCDE", 5 );
+    test ( U"a", 1 );
+    test ( U"", 0 );
+#endif
+
+#if _LIBCPP_STD_VER > 11
+    static_assert ( test_ce (5) == 0, "" );
+#endif
+
+}

Added: libcxx/trunk/test/std/experimental/string.view/string.view.modifiers/remove_prefix.pass.cpp
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/test/std/experimental/string.view/string.view.modifiers/remove_prefix.pass.cpp?rev=224658&view=auto
==============================================================================
--- libcxx/trunk/test/std/experimental/string.view/string.view.modifiers/remove_prefix.pass.cpp (added)
+++ libcxx/trunk/test/std/experimental/string.view/string.view.modifiers/remove_prefix.pass.cpp Fri Dec 19 19:40:03 2014
@@ -0,0 +1,76 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+
+// <string_view>
+
+// void remove_prefix(size_type _n)
+
+#include <experimental/string_view>
+#include <cassert>
+#include <iostream>
+
+template<typename CharT>
+void test ( const CharT *s, size_t len ) {
+    typedef std::experimental::basic_string_view<CharT> SV;
+    {
+    SV sv1 ( s );
+    assert ( sv1.size() == len );
+    assert ( sv1.data() == s );
+
+    if ( len > 0 ) {
+        sv1.remove_prefix ( 1 );
+        assert ( sv1.size() == (len - 1));
+        assert ( sv1.data() == (s + 1));
+        sv1.remove_prefix ( len - 1 );
+    }
+    
+    assert ( sv1.size() == 0 );
+    sv1.remove_prefix ( 0 );
+    assert ( sv1.size() == 0 ); 
+    }
+}
+
+#if _LIBCPP_STD_VER > 11
+constexpr size_t test_ce ( size_t n, size_t k ) {
+    typedef std::experimental::basic_string_view<char> SV;
+    SV sv1{ "ABCDEFGHIJKL", n };
+    sv1.remove_prefix ( k );
+    return sv1.size();
+}
+#endif
+
+int main () {
+    test ( "ABCDE", 5 );
+    test ( "a", 1 );
+    test ( "", 0 );
+
+    test ( L"ABCDE", 5 );
+    test ( L"a", 1 );
+    test ( L"", 0 );
+
+#if __cplusplus >= 201103L
+    test ( u"ABCDE", 5 );
+    test ( u"a", 1 );
+    test ( u"", 0 );
+
+    test ( U"ABCDE", 5 );
+    test ( U"a", 1 );
+    test ( U"", 0 );
+#endif
+
+#if _LIBCPP_STD_VER > 11
+    {
+    static_assert ( test_ce ( 5, 0 ) == 5, "" );
+    static_assert ( test_ce ( 5, 1 ) == 4, "" );
+    static_assert ( test_ce ( 5, 5 ) == 0, "" );
+    static_assert ( test_ce ( 9, 3 ) == 6, "" );
+    }
+#endif
+}

Added: libcxx/trunk/test/std/experimental/string.view/string.view.modifiers/remove_suffix.pass.cpp
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/test/std/experimental/string.view/string.view.modifiers/remove_suffix.pass.cpp?rev=224658&view=auto
==============================================================================
--- libcxx/trunk/test/std/experimental/string.view/string.view.modifiers/remove_suffix.pass.cpp (added)
+++ libcxx/trunk/test/std/experimental/string.view/string.view.modifiers/remove_suffix.pass.cpp Fri Dec 19 19:40:03 2014
@@ -0,0 +1,76 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+
+// <string_view>
+
+// void remove_suffix(size_type _n)
+
+#include <experimental/string_view>
+#include <cassert>
+
+template<typename CharT>
+void test ( const CharT *s, size_t len ) {
+    typedef std::experimental::basic_string_view<CharT> SV;
+    {
+    SV sv1 ( s );
+    assert ( sv1.size() == len );
+    assert ( sv1.data() == s );
+
+    if ( len > 0 ) {
+        sv1.remove_suffix ( 1 );
+        assert ( sv1.size() == (len - 1));
+        assert ( sv1.data() == s);
+        sv1.remove_suffix ( len - 1 );
+        }
+        
+    assert ( sv1.size() == 0 );
+    sv1.remove_suffix ( 0 );
+    assert ( sv1.size() == 0 ); 
+    }
+
+}
+
+#if _LIBCPP_STD_VER > 11
+constexpr size_t test_ce ( size_t n, size_t k ) {
+    typedef std::experimental::basic_string_view<char> SV;
+    SV sv1{ "ABCDEFGHIJKL", n };
+    sv1.remove_suffix ( k );
+    return sv1.size();
+}
+#endif
+
+int main () {
+    test ( "ABCDE", 5 );
+    test ( "a", 1 );
+    test ( "", 0 );
+
+    test ( L"ABCDE", 5 );
+    test ( L"a", 1 );
+    test ( L"", 0 );
+
+#if __cplusplus >= 201103L
+    test ( u"ABCDE", 5 );
+    test ( u"a", 1 );
+    test ( u"", 0 );
+
+    test ( U"ABCDE", 5 );
+    test ( U"a", 1 );
+    test ( U"", 0 );
+#endif
+
+#if _LIBCPP_STD_VER > 11
+    {
+    static_assert ( test_ce ( 5, 0 ) == 5, "" );
+    static_assert ( test_ce ( 5, 1 ) == 4, "" );
+    static_assert ( test_ce ( 5, 5 ) == 0, "" );
+    static_assert ( test_ce ( 9, 3 ) == 6, "" );
+    }
+#endif
+}

Added: libcxx/trunk/test/std/experimental/string.view/string.view.modifiers/swap.pass.cpp
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/test/std/experimental/string.view/string.view.modifiers/swap.pass.cpp?rev=224658&view=auto
==============================================================================
--- libcxx/trunk/test/std/experimental/string.view/string.view.modifiers/swap.pass.cpp (added)
+++ libcxx/trunk/test/std/experimental/string.view/string.view.modifiers/swap.pass.cpp Fri Dec 19 19:40:03 2014
@@ -0,0 +1,74 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+
+// <string_view>
+
+// void swap(basic_string_view& _other) noexcept
+
+#include <experimental/string_view>
+#include <cassert>
+
+template<typename CharT>
+void test ( const CharT *s, size_t len ) {
+    typedef std::experimental::basic_string_view<CharT> SV;
+    {
+    SV sv1(s);
+    SV sv2;
+    
+    assert ( sv1.size() == len );
+    assert ( sv1.data() == s );
+    assert ( sv2.size() == 0 );
+
+    sv1.swap ( sv2 );
+    assert ( sv1.size() == 0 );
+    assert ( sv2.size() == len );
+    assert ( sv2.data() == s );
+    }
+
+}
+
+#if _LIBCPP_STD_VER > 11
+constexpr size_t test_ce ( size_t n, size_t k ) {
+    typedef std::experimental::basic_string_view<char> SV;
+    SV sv1{ "ABCDEFGHIJKL", n };
+    SV sv2 { sv1.data(), k };
+    sv1.swap ( sv2 );
+    return sv1.size();
+}
+#endif
+
+
+int main () {
+    test ( "ABCDE", 5 );
+    test ( "a", 1 );
+    test ( "", 0 );
+
+    test ( L"ABCDE", 5 );
+    test ( L"a", 1 );
+    test ( L"", 0 );
+
+#if __cplusplus >= 201103L
+    test ( u"ABCDE", 5 );
+    test ( u"a", 1 );
+    test ( u"", 0 );
+
+    test ( U"ABCDE", 5 );
+    test ( U"a", 1 );
+    test ( U"", 0 );
+#endif
+
+#if _LIBCPP_STD_VER > 11
+    {
+    static_assert ( test_ce (2, 3) == 3, "" );
+    static_assert ( test_ce (5, 3) == 3, "" );
+    static_assert ( test_ce (0, 1) == 1, "" );
+    }
+#endif
+}

Added: libcxx/trunk/test/std/experimental/string.view/string.view.nonmem/quoted.pass.cpp
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/test/std/experimental/string.view/string.view.nonmem/quoted.pass.cpp?rev=224658&view=auto
==============================================================================
--- libcxx/trunk/test/std/experimental/string.view/string.view.nonmem/quoted.pass.cpp (added)
+++ libcxx/trunk/test/std/experimental/string.view/string.view.nonmem/quoted.pass.cpp Fri Dec 19 19:40:03 2014
@@ -0,0 +1,212 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <iomanip>
+
+// quoted
+
+#include <iomanip>
+#include <sstream>
+#include <experimental/string_view>
+#include <cassert>
+
+#if _LIBCPP_STD_VER > 11
+// quoted is C++14 only
+
+bool is_skipws ( const std::istream *is ) {
+    return ( is->flags() & std::ios_base::skipws ) != 0;
+    }
+
+
+bool is_skipws ( const std::wistream *is ) {
+    return ( is->flags() & std::ios_base::skipws ) != 0;
+    }
+
+void round_trip ( const char *p ) {
+    std::stringstream ss;
+    bool skippingws = is_skipws ( &ss );
+    std::experimental::string_view sv {p};
+
+    ss << std::quoted(sv);
+    std::string s;
+    ss >> std::quoted(s);
+    assert ( s == sv );
+    assert ( skippingws == is_skipws ( &ss ));
+    }
+
+void round_trip_ws ( const char *p ) {
+    std::stringstream ss;
+    std::noskipws ( ss );
+    bool skippingws = is_skipws ( &ss );
+    std::experimental::string_view sv {p};
+
+    ss << std::quoted(sv);
+    std::string s;
+    ss >> std::quoted(s);
+    assert ( s == sv );
+    assert ( skippingws == is_skipws ( &ss ));
+    }
+
+void round_trip_d ( const char *p, char delim ) {
+    std::stringstream ss;
+    std::experimental::string_view sv {p};
+
+    ss << std::quoted(sv, delim);
+    std::string s;
+    ss >> std::quoted(s, delim);
+    assert ( s == sv );
+    }
+
+void round_trip_e ( const char *p, char escape ) {
+    std::stringstream ss;
+    std::experimental::string_view sv {p};
+
+    ss << std::quoted(sv, '"', escape );
+    std::string s;
+    ss >> std::quoted(s, '"', escape );
+    assert ( s == sv );
+    }
+
+
+
+std::string quote ( const char *p, char delim='"', char escape='\\' ) {
+    std::stringstream ss;
+    ss << std::quoted(p, delim, escape);
+    std::string s;
+    ss >> s;    // no quote
+    return s;
+}
+
+std::string unquote ( const char *p, char delim='"', char escape='\\' ) {
+    std::stringstream ss;
+    ss << p;
+    std::string s;
+    ss >> std::quoted(s, delim, escape);
+    return s;
+}
+
+
+void round_trip ( const wchar_t *p ) {
+    std::wstringstream ss;
+    bool skippingws = is_skipws ( &ss );
+    std::experimental::wstring_view sv {p};
+
+    ss << std::quoted(sv);
+    std::wstring s;
+    ss >> std::quoted(s);
+    assert ( s == sv );
+    assert ( skippingws == is_skipws ( &ss ));
+    }
+    
+
+void round_trip_ws ( const wchar_t *p ) {
+    std::wstringstream ss;
+    std::noskipws ( ss );
+    bool skippingws = is_skipws ( &ss );
+    std::experimental::wstring_view sv {p};
+
+    ss << std::quoted(sv);
+    std::wstring s;
+    ss >> std::quoted(s);
+    assert ( s == sv );
+    assert ( skippingws == is_skipws ( &ss ));
+    }
+
+void round_trip_d ( const wchar_t *p, wchar_t delim ) {
+    std::wstringstream ss;
+    std::experimental::wstring_view sv {p};
+
+    ss << std::quoted(sv, delim);
+    std::wstring s;
+    ss >> std::quoted(s, delim);
+    assert ( s == sv );
+    }
+
+void round_trip_e ( const wchar_t *p, wchar_t escape ) {
+    std::wstringstream ss;
+    std::experimental::wstring_view sv {p};
+
+    ss << std::quoted(sv, wchar_t('"'), escape );
+    std::wstring s;
+    ss >> std::quoted(s, wchar_t('"'), escape );
+    assert ( s == sv );
+    }
+
+
+std::wstring quote ( const wchar_t *p, wchar_t delim='"', wchar_t escape='\\' ) {
+    std::wstringstream ss;
+    std::experimental::wstring_view sv {p};
+
+    ss << std::quoted(sv, delim, escape);
+    std::wstring s;
+    ss >> s;    // no quote
+    return s;
+}
+
+std::wstring unquote ( const wchar_t *p, wchar_t delim='"', wchar_t escape='\\' ) {
+    std::wstringstream ss;
+    std::experimental::wstring_view sv {p};
+
+    ss << sv;
+    std::wstring s;
+    ss >> std::quoted(s, delim, escape);
+    return s;
+}
+
+int main()
+{
+    round_trip    (  "" );
+    round_trip_ws (  "" );
+    round_trip_d  (  "", 'q' );
+    round_trip_e  (  "", 'q' );
+    
+    round_trip    ( L"" );
+    round_trip_ws ( L"" );
+    round_trip_d  ( L"", 'q' );
+    round_trip_e  ( L"", 'q' );
+    
+    round_trip    (  "Hi" );
+    round_trip_ws (  "Hi" );
+    round_trip_d  (  "Hi", '!' );
+    round_trip_e  (  "Hi", '!' );
+    assert ( quote ( "Hi", '!' ) == "!Hi!" );
+    assert ( quote ( "Hi!", '!' ) == R"(!Hi\!!)" );
+    
+    round_trip    ( L"Hi" );
+    round_trip_ws ( L"Hi" );
+    round_trip_d  ( L"Hi", '!' );
+    round_trip_e  ( L"Hi", '!' );
+    assert ( quote ( L"Hi", '!' )  == L"!Hi!" );
+    assert ( quote ( L"Hi!", '!' ) == LR"(!Hi\!!)" );
+    
+    round_trip    (  "Hi Mom" );
+    round_trip_ws (  "Hi Mom" );
+    round_trip    ( L"Hi Mom" );
+    round_trip_ws ( L"Hi Mom" );
+    
+    assert ( quote (  "" )  ==  "\"\"" );
+    assert ( quote ( L"" )  == L"\"\"" );
+    assert ( quote (  "a" ) ==  "\"a\"" );
+    assert ( quote ( L"a" ) == L"\"a\"" );
+
+//  missing end quote - must not hang
+    assert ( unquote (  "\"abc" ) ==  "abc" );
+    assert ( unquote ( L"\"abc" ) == L"abc" );
+    
+    assert ( unquote (  "abc" ) == "abc" ); // no delimiter
+    assert ( unquote ( L"abc" ) == L"abc" ); // no delimiter
+    assert ( unquote (  "abc def" ) ==  "abc" ); // no delimiter
+    assert ( unquote ( L"abc def" ) == L"abc" ); // no delimiter
+
+    assert ( unquote (  "" ) ==  "" ); // nothing there
+    assert ( unquote ( L"" ) == L"" ); // nothing there
+    }
+#else
+int main() {}
+#endif

Added: libcxx/trunk/test/std/experimental/string.view/string.view.ops/basic_string.pass.cpp
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/test/std/experimental/string.view/string.view.ops/basic_string.pass.cpp?rev=224658&view=auto
==============================================================================
--- libcxx/trunk/test/std/experimental/string.view/string.view.ops/basic_string.pass.cpp (added)
+++ libcxx/trunk/test/std/experimental/string.view/string.view.ops/basic_string.pass.cpp Fri Dec 19 19:40:03 2014
@@ -0,0 +1,63 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+
+// <string_view>
+
+// template<class _Allocator>
+// explicit operator basic_string<_CharT, _Traits, _Allocator>() const
+
+#include <experimental/string_view>
+#include <cassert>
+
+template<typename CharT>
+void test ( const CharT *s ) {
+    typedef std::experimental::basic_string_view<CharT> string_view_t;
+    typedef std::basic_string<CharT> string_t;
+    
+    {
+    string_view_t sv1 ( s );
+    string_t      str = (string_t) sv1;
+
+    assert ( sv1.size() == str.size ());
+    assert ( std::char_traits<CharT>::compare ( sv1.data(), str.data(), sv1.size()) == 0 );
+    }
+
+    {
+    string_view_t sv1;
+    string_t      str = (string_t) sv1;
+
+    assert ( sv1.size() == str.size ());
+    assert ( std::char_traits<CharT>::compare ( sv1.data(), str.data(), sv1.size()) == 0 );
+    }
+}
+
+int main () {
+    test ( "ABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDE" );
+    test ( "ABCDE");
+    test ( "a" );
+    test ( "" );
+
+    test ( L"ABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDE" );
+    test ( L"ABCDE" );
+    test ( L"a" );
+    test ( L"" );
+
+#if __cplusplus >= 201103L
+    test ( u"ABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDE" );
+    test ( u"ABCDE" );
+    test ( u"a" );
+    test ( u"" );
+
+    test ( U"ABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDE" );
+    test ( U"ABCDE" );
+    test ( U"a" );
+    test ( U"" );
+#endif
+}

Added: libcxx/trunk/test/std/experimental/string.view/string.view.ops/compare.pointer.pass.cpp
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/test/std/experimental/string.view/string.view.ops/compare.pointer.pass.cpp?rev=224658&view=auto
==============================================================================
--- libcxx/trunk/test/std/experimental/string.view/string.view.ops/compare.pointer.pass.cpp (added)
+++ libcxx/trunk/test/std/experimental/string.view/string.view.ops/compare.pointer.pass.cpp Fri Dec 19 19:40:03 2014
@@ -0,0 +1,126 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <string_view>
+
+// constexpr int compare(const charT* s) const;
+
+#include <experimental/string_view>
+#include <cassert>
+
+#include "constexpr_char_traits.hpp"
+
+int sign ( int x ) { return x > 0 ? 1 : ( x < 0 ? -1 : 0 ); }
+
+template<typename CharT>
+void test1 ( std::experimental::basic_string_view<CharT> sv1, const CharT *s, int expected ) {
+    assert ( sign( sv1.compare(s)) == sign(expected));
+}
+
+template<typename CharT>
+void
+test( const CharT *s1, const CharT *s2, int expected)
+{
+    typedef std::experimental::basic_string_view<CharT> string_view_t;
+    string_view_t sv1 ( s1 );
+    test1 ( sv1, s2, expected );
+}
+
+int main()
+{
+    {
+    test("", "", 0);
+    test("", "abcde", -5);
+    test("", "abcdefghij", -10);
+    test("", "abcdefghijklmnopqrst", -20);
+    test("abcde", "", 5);
+    test("abcde", "abcde", 0);
+    test("abcde", "abcdefghij", -5);
+    test("abcde", "abcdefghijklmnopqrst", -15);
+    test("abcdefghij", "", 10);
+    test("abcdefghij", "abcde", 5);
+    test("abcdefghij", "abcdefghij", 0);
+    test("abcdefghij", "abcdefghijklmnopqrst", -10);
+    test("abcdefghijklmnopqrst", "", 20);
+    test("abcdefghijklmnopqrst", "abcde", 15);
+    test("abcdefghijklmnopqrst", "abcdefghij", 10);
+    test("abcdefghijklmnopqrst", "abcdefghijklmnopqrst", 0);
+    }
+
+    {
+    test(L"", L"", 0);
+    test(L"", L"abcde", -5);
+    test(L"", L"abcdefghij", -10);
+    test(L"", L"abcdefghijklmnopqrst", -20);
+    test(L"abcde", L"", 5);
+    test(L"abcde", L"abcde", 0);
+    test(L"abcde", L"abcdefghij", -5);
+    test(L"abcde", L"abcdefghijklmnopqrst", -15);
+    test(L"abcdefghij", L"", 10);
+    test(L"abcdefghij", L"abcde", 5);
+    test(L"abcdefghij", L"abcdefghij", 0);
+    test(L"abcdefghij", L"abcdefghijklmnopqrst", -10);
+    test(L"abcdefghijklmnopqrst", L"", 20);
+    test(L"abcdefghijklmnopqrst", L"abcde", 15);
+    test(L"abcdefghijklmnopqrst", L"abcdefghij", 10);
+    test(L"abcdefghijklmnopqrst", L"abcdefghijklmnopqrst", 0);
+    }
+
+#if __cplusplus >= 201103L
+    {
+    test(U"", U"", 0);
+    test(U"", U"abcde", -5);
+    test(U"", U"abcdefghij", -10);
+    test(U"", U"abcdefghijklmnopqrst", -20);
+    test(U"abcde", U"", 5);
+    test(U"abcde", U"abcde", 0);
+    test(U"abcde", U"abcdefghij", -5);
+    test(U"abcde", U"abcdefghijklmnopqrst", -15);
+    test(U"abcdefghij", U"", 10);
+    test(U"abcdefghij", U"abcde", 5);
+    test(U"abcdefghij", U"abcdefghij", 0);
+    test(U"abcdefghij", U"abcdefghijklmnopqrst", -10);
+    test(U"abcdefghijklmnopqrst", U"", 20);
+    test(U"abcdefghijklmnopqrst", U"abcde", 15);
+    test(U"abcdefghijklmnopqrst", U"abcdefghij", 10);
+    test(U"abcdefghijklmnopqrst", U"abcdefghijklmnopqrst", 0);
+    }
+
+    {
+    test(u"", u"", 0);
+    test(u"", u"abcde", -5);
+    test(u"", u"abcdefghij", -10);
+    test(u"", u"abcdefghijklmnopqrst", -20);
+    test(u"abcde", u"", 5);
+    test(u"abcde", u"abcde", 0);
+    test(u"abcde", u"abcdefghij", -5);
+    test(u"abcde", u"abcdefghijklmnopqrst", -15);
+    test(u"abcdefghij", u"", 10);
+    test(u"abcdefghij", u"abcde", 5);
+    test(u"abcdefghij", u"abcdefghij", 0);
+    test(u"abcdefghij", u"abcdefghijklmnopqrst", -10);
+    test(u"abcdefghijklmnopqrst", u"", 20);
+    test(u"abcdefghijklmnopqrst", u"abcde", 15);
+    test(u"abcdefghijklmnopqrst", u"abcdefghij", 10);
+    test(u"abcdefghijklmnopqrst", u"abcdefghijklmnopqrst", 0);
+    }
+#endif
+
+#if _LIBCPP_STD_VER > 11
+    {
+    typedef std::experimental::basic_string_view<char, constexpr_char_traits<char>> SV;
+    constexpr SV  sv1;
+    constexpr SV  sv2 { "abcde", 5 };
+    static_assert ( sv1.compare("") == 0, "" );
+    static_assert ( sv1.compare("abcde") == -1, "" );
+    static_assert ( sv2.compare("") == 1, "" );
+    static_assert ( sv2.compare("abcde") == 0, "" );
+    }
+#endif
+}

Added: libcxx/trunk/test/std/experimental/string.view/string.view.ops/compare.pointer_size.pass.cpp
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/test/std/experimental/string.view/string.view.ops/compare.pointer_size.pass.cpp?rev=224658&view=auto
==============================================================================
--- libcxx/trunk/test/std/experimental/string.view/string.view.ops/compare.pointer_size.pass.cpp (added)
+++ libcxx/trunk/test/std/experimental/string.view/string.view.ops/compare.pointer_size.pass.cpp Fri Dec 19 19:40:03 2014
@@ -0,0 +1,444 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <string_view>
+
+// constexpr int compare(size_type pos1, size_type n1, const charT* s) const;
+
+#include <experimental/string_view>
+#include <cassert>
+
+#include "constexpr_char_traits.hpp"
+
+int sign ( int x ) { return x > 0 ? 1 : ( x < 0 ? -1 : 0 ); }
+
+template<typename CharT>
+void test1 ( std::experimental::basic_string_view<CharT> sv1, 
+             size_t pos1, size_t n1, const CharT *s, int expected ) {
+    try {
+        assert(sign(sv1.compare(pos1, n1, s)) == sign(expected));
+        assert(pos1 <= sv1.size());
+    }
+    catch (const std::out_of_range&) { assert(pos1 > sv1.size()); }
+}
+
+template<typename CharT>
+void
+test( const CharT *s1, size_t pos1, size_t n1, const CharT *s2, int expected)
+{
+    typedef std::experimental::basic_string_view<CharT> string_view_t;
+    string_view_t sv1 ( s1 );
+    test1 ( sv1, pos1, n1, s2, expected );
+}
+
+void test0()
+{
+    test("", 0, 0, "", 0);
+    test("", 0, 0, "abcde", -5);
+    test("", 0, 0, "abcdefghij", -10);
+    test("", 0, 0, "abcdefghijklmnopqrst", -20);
+    test("", 0, 1, "", 0);
+    test("", 0, 1, "abcde", -5);
+    test("", 0, 1, "abcdefghij", -10);
+    test("", 0, 1, "abcdefghijklmnopqrst", -20);
+    test("", 1, 0, "", 0);
+    test("", 1, 0, "abcde", 0);
+    test("", 1, 0, "abcdefghij", 0);
+    test("", 1, 0, "abcdefghijklmnopqrst", 0);
+    test("abcde", 0, 0, "", 0);
+    test("abcde", 0, 0, "abcde", -5);
+    test("abcde", 0, 0, "abcdefghij", -10);
+    test("abcde", 0, 0, "abcdefghijklmnopqrst", -20);
+    test("abcde", 0, 1, "", 1);
+    test("abcde", 0, 1, "abcde", -4);
+    test("abcde", 0, 1, "abcdefghij", -9);
+    test("abcde", 0, 1, "abcdefghijklmnopqrst", -19);
+    test("abcde", 0, 2, "", 2);
+    test("abcde", 0, 2, "abcde", -3);
+    test("abcde", 0, 2, "abcdefghij", -8);
+    test("abcde", 0, 2, "abcdefghijklmnopqrst", -18);
+    test("abcde", 0, 4, "", 4);
+    test("abcde", 0, 4, "abcde", -1);
+    test("abcde", 0, 4, "abcdefghij", -6);
+    test("abcde", 0, 4, "abcdefghijklmnopqrst", -16);
+    test("abcde", 0, 5, "", 5);
+    test("abcde", 0, 5, "abcde", 0);
+    test("abcde", 0, 5, "abcdefghij", -5);
+    test("abcde", 0, 5, "abcdefghijklmnopqrst", -15);
+    test("abcde", 0, 6, "", 5);
+    test("abcde", 0, 6, "abcde", 0);
+    test("abcde", 0, 6, "abcdefghij", -5);
+    test("abcde", 0, 6, "abcdefghijklmnopqrst", -15);
+    test("abcde", 1, 0, "", 0);
+    test("abcde", 1, 0, "abcde", -5);
+    test("abcde", 1, 0, "abcdefghij", -10);
+    test("abcde", 1, 0, "abcdefghijklmnopqrst", -20);
+    test("abcde", 1, 1, "", 1);
+    test("abcde", 1, 1, "abcde", 1);
+    test("abcde", 1, 1, "abcdefghij", 1);
+    test("abcde", 1, 1, "abcdefghijklmnopqrst", 1);
+    test("abcde", 1, 2, "", 2);
+    test("abcde", 1, 2, "abcde", 1);
+    test("abcde", 1, 2, "abcdefghij", 1);
+    test("abcde", 1, 2, "abcdefghijklmnopqrst", 1);
+    test("abcde", 1, 3, "", 3);
+    test("abcde", 1, 3, "abcde", 1);
+    test("abcde", 1, 3, "abcdefghij", 1);
+    test("abcde", 1, 3, "abcdefghijklmnopqrst", 1);
+    test("abcde", 1, 4, "", 4);
+    test("abcde", 1, 4, "abcde", 1);
+    test("abcde", 1, 4, "abcdefghij", 1);
+    test("abcde", 1, 4, "abcdefghijklmnopqrst", 1);
+    test("abcde", 1, 5, "", 4);
+    test("abcde", 1, 5, "abcde", 1);
+    test("abcde", 1, 5, "abcdefghij", 1);
+    test("abcde", 1, 5, "abcdefghijklmnopqrst", 1);
+    test("abcde", 2, 0, "", 0);
+    test("abcde", 2, 0, "abcde", -5);
+    test("abcde", 2, 0, "abcdefghij", -10);
+    test("abcde", 2, 0, "abcdefghijklmnopqrst", -20);
+    test("abcde", 2, 1, "", 1);
+    test("abcde", 2, 1, "abcde", 2);
+    test("abcde", 2, 1, "abcdefghij", 2);
+    test("abcde", 2, 1, "abcdefghijklmnopqrst", 2);
+    test("abcde", 2, 2, "", 2);
+    test("abcde", 2, 2, "abcde", 2);
+    test("abcde", 2, 2, "abcdefghij", 2);
+    test("abcde", 2, 2, "abcdefghijklmnopqrst", 2);
+    test("abcde", 2, 3, "", 3);
+    test("abcde", 2, 3, "abcde", 2);
+    test("abcde", 2, 3, "abcdefghij", 2);
+    test("abcde", 2, 3, "abcdefghijklmnopqrst", 2);
+    test("abcde", 2, 4, "", 3);
+    test("abcde", 2, 4, "abcde", 2);
+    test("abcde", 2, 4, "abcdefghij", 2);
+    test("abcde", 2, 4, "abcdefghijklmnopqrst", 2);
+    test("abcde", 4, 0, "", 0);
+    test("abcde", 4, 0, "abcde", -5);
+    test("abcde", 4, 0, "abcdefghij", -10);
+    test("abcde", 4, 0, "abcdefghijklmnopqrst", -20);
+    test("abcde", 4, 1, "", 1);
+    test("abcde", 4, 1, "abcde", 4);
+    test("abcde", 4, 1, "abcdefghij", 4);
+    test("abcde", 4, 1, "abcdefghijklmnopqrst", 4);
+    test("abcde", 4, 2, "", 1);
+    test("abcde", 4, 2, "abcde", 4);
+    test("abcde", 4, 2, "abcdefghij", 4);
+    test("abcde", 4, 2, "abcdefghijklmnopqrst", 4);
+    test("abcde", 5, 0, "", 0);
+    test("abcde", 5, 0, "abcde", -5);
+    test("abcde", 5, 0, "abcdefghij", -10);
+    test("abcde", 5, 0, "abcdefghijklmnopqrst", -20);
+    test("abcde", 5, 1, "", 0);
+    test("abcde", 5, 1, "abcde", -5);
+    test("abcde", 5, 1, "abcdefghij", -10);
+    test("abcde", 5, 1, "abcdefghijklmnopqrst", -20);
+}
+
+void test1()
+{
+    test("abcde", 6, 0, "", 0);
+    test("abcde", 6, 0, "abcde", 0);
+    test("abcde", 6, 0, "abcdefghij", 0);
+    test("abcde", 6, 0, "abcdefghijklmnopqrst", 0);
+    test("abcdefghij", 0, 0, "", 0);
+    test("abcdefghij", 0, 0, "abcde", -5);
+    test("abcdefghij", 0, 0, "abcdefghij", -10);
+    test("abcdefghij", 0, 0, "abcdefghijklmnopqrst", -20);
+    test("abcdefghij", 0, 1, "", 1);
+    test("abcdefghij", 0, 1, "abcde", -4);
+    test("abcdefghij", 0, 1, "abcdefghij", -9);
+    test("abcdefghij", 0, 1, "abcdefghijklmnopqrst", -19);
+    test("abcdefghij", 0, 5, "", 5);
+    test("abcdefghij", 0, 5, "abcde", 0);
+    test("abcdefghij", 0, 5, "abcdefghij", -5);
+    test("abcdefghij", 0, 5, "abcdefghijklmnopqrst", -15);
+    test("abcdefghij", 0, 9, "", 9);
+    test("abcdefghij", 0, 9, "abcde", 4);
+    test("abcdefghij", 0, 9, "abcdefghij", -1);
+    test("abcdefghij", 0, 9, "abcdefghijklmnopqrst", -11);
+    test("abcdefghij", 0, 10, "", 10);
+    test("abcdefghij", 0, 10, "abcde", 5);
+    test("abcdefghij", 0, 10, "abcdefghij", 0);
+    test("abcdefghij", 0, 10, "abcdefghijklmnopqrst", -10);
+    test("abcdefghij", 0, 11, "", 10);
+    test("abcdefghij", 0, 11, "abcde", 5);
+    test("abcdefghij", 0, 11, "abcdefghij", 0);
+    test("abcdefghij", 0, 11, "abcdefghijklmnopqrst", -10);
+    test("abcdefghij", 1, 0, "", 0);
+    test("abcdefghij", 1, 0, "abcde", -5);
+    test("abcdefghij", 1, 0, "abcdefghij", -10);
+    test("abcdefghij", 1, 0, "abcdefghijklmnopqrst", -20);
+    test("abcdefghij", 1, 1, "", 1);
+    test("abcdefghij", 1, 1, "abcde", 1);
+    test("abcdefghij", 1, 1, "abcdefghij", 1);
+    test("abcdefghij", 1, 1, "abcdefghijklmnopqrst", 1);
+    test("abcdefghij", 1, 4, "", 4);
+    test("abcdefghij", 1, 4, "abcde", 1);
+    test("abcdefghij", 1, 4, "abcdefghij", 1);
+    test("abcdefghij", 1, 4, "abcdefghijklmnopqrst", 1);
+    test("abcdefghij", 1, 8, "", 8);
+    test("abcdefghij", 1, 8, "abcde", 1);
+    test("abcdefghij", 1, 8, "abcdefghij", 1);
+    test("abcdefghij", 1, 8, "abcdefghijklmnopqrst", 1);
+    test("abcdefghij", 1, 9, "", 9);
+    test("abcdefghij", 1, 9, "abcde", 1);
+    test("abcdefghij", 1, 9, "abcdefghij", 1);
+    test("abcdefghij", 1, 9, "abcdefghijklmnopqrst", 1);
+    test("abcdefghij", 1, 10, "", 9);
+    test("abcdefghij", 1, 10, "abcde", 1);
+    test("abcdefghij", 1, 10, "abcdefghij", 1);
+    test("abcdefghij", 1, 10, "abcdefghijklmnopqrst", 1);
+    test("abcdefghij", 5, 0, "", 0);
+    test("abcdefghij", 5, 0, "abcde", -5);
+    test("abcdefghij", 5, 0, "abcdefghij", -10);
+    test("abcdefghij", 5, 0, "abcdefghijklmnopqrst", -20);
+    test("abcdefghij", 5, 1, "", 1);
+    test("abcdefghij", 5, 1, "abcde", 5);
+    test("abcdefghij", 5, 1, "abcdefghij", 5);
+    test("abcdefghij", 5, 1, "abcdefghijklmnopqrst", 5);
+    test("abcdefghij", 5, 2, "", 2);
+    test("abcdefghij", 5, 2, "abcde", 5);
+    test("abcdefghij", 5, 2, "abcdefghij", 5);
+    test("abcdefghij", 5, 2, "abcdefghijklmnopqrst", 5);
+    test("abcdefghij", 5, 4, "", 4);
+    test("abcdefghij", 5, 4, "abcde", 5);
+    test("abcdefghij", 5, 4, "abcdefghij", 5);
+    test("abcdefghij", 5, 4, "abcdefghijklmnopqrst", 5);
+    test("abcdefghij", 5, 5, "", 5);
+    test("abcdefghij", 5, 5, "abcde", 5);
+    test("abcdefghij", 5, 5, "abcdefghij", 5);
+    test("abcdefghij", 5, 5, "abcdefghijklmnopqrst", 5);
+    test("abcdefghij", 5, 6, "", 5);
+    test("abcdefghij", 5, 6, "abcde", 5);
+    test("abcdefghij", 5, 6, "abcdefghij", 5);
+    test("abcdefghij", 5, 6, "abcdefghijklmnopqrst", 5);
+    test("abcdefghij", 9, 0, "", 0);
+    test("abcdefghij", 9, 0, "abcde", -5);
+    test("abcdefghij", 9, 0, "abcdefghij", -10);
+    test("abcdefghij", 9, 0, "abcdefghijklmnopqrst", -20);
+    test("abcdefghij", 9, 1, "", 1);
+    test("abcdefghij", 9, 1, "abcde", 9);
+    test("abcdefghij", 9, 1, "abcdefghij", 9);
+    test("abcdefghij", 9, 1, "abcdefghijklmnopqrst", 9);
+    test("abcdefghij", 9, 2, "", 1);
+    test("abcdefghij", 9, 2, "abcde", 9);
+    test("abcdefghij", 9, 2, "abcdefghij", 9);
+    test("abcdefghij", 9, 2, "abcdefghijklmnopqrst", 9);
+    test("abcdefghij", 10, 0, "", 0);
+    test("abcdefghij", 10, 0, "abcde", -5);
+    test("abcdefghij", 10, 0, "abcdefghij", -10);
+    test("abcdefghij", 10, 0, "abcdefghijklmnopqrst", -20);
+    test("abcdefghij", 10, 1, "", 0);
+    test("abcdefghij", 10, 1, "abcde", -5);
+    test("abcdefghij", 10, 1, "abcdefghij", -10);
+    test("abcdefghij", 10, 1, "abcdefghijklmnopqrst", -20);
+    test("abcdefghij", 11, 0, "", 0);
+    test("abcdefghij", 11, 0, "abcde", 0);
+    test("abcdefghij", 11, 0, "abcdefghij", 0);
+    test("abcdefghij", 11, 0, "abcdefghijklmnopqrst", 0);
+}
+
+void test2()
+{
+    test("abcdefghijklmnopqrst", 0, 0, "", 0);
+    test("abcdefghijklmnopqrst", 0, 0, "abcde", -5);
+    test("abcdefghijklmnopqrst", 0, 0, "abcdefghij", -10);
+    test("abcdefghijklmnopqrst", 0, 0, "abcdefghijklmnopqrst", -20);
+    test("abcdefghijklmnopqrst", 0, 1, "", 1);
+    test("abcdefghijklmnopqrst", 0, 1, "abcde", -4);
+    test("abcdefghijklmnopqrst", 0, 1, "abcdefghij", -9);
+    test("abcdefghijklmnopqrst", 0, 1, "abcdefghijklmnopqrst", -19);
+    test("abcdefghijklmnopqrst", 0, 10, "", 10);
+    test("abcdefghijklmnopqrst", 0, 10, "abcde", 5);
+    test("abcdefghijklmnopqrst", 0, 10, "abcdefghij", 0);
+    test("abcdefghijklmnopqrst", 0, 10, "abcdefghijklmnopqrst", -10);
+    test("abcdefghijklmnopqrst", 0, 19, "", 19);
+    test("abcdefghijklmnopqrst", 0, 19, "abcde", 14);
+    test("abcdefghijklmnopqrst", 0, 19, "abcdefghij", 9);
+    test("abcdefghijklmnopqrst", 0, 19, "abcdefghijklmnopqrst", -1);
+    test("abcdefghijklmnopqrst", 0, 20, "", 20);
+    test("abcdefghijklmnopqrst", 0, 20, "abcde", 15);
+    test("abcdefghijklmnopqrst", 0, 20, "abcdefghij", 10);
+    test("abcdefghijklmnopqrst", 0, 20, "abcdefghijklmnopqrst", 0);
+    test("abcdefghijklmnopqrst", 0, 21, "", 20);
+    test("abcdefghijklmnopqrst", 0, 21, "abcde", 15);
+    test("abcdefghijklmnopqrst", 0, 21, "abcdefghij", 10);
+    test("abcdefghijklmnopqrst", 0, 21, "abcdefghijklmnopqrst", 0);
+    test("abcdefghijklmnopqrst", 1, 0, "", 0);
+    test("abcdefghijklmnopqrst", 1, 0, "abcde", -5);
+    test("abcdefghijklmnopqrst", 1, 0, "abcdefghij", -10);
+    test("abcdefghijklmnopqrst", 1, 0, "abcdefghijklmnopqrst", -20);
+    test("abcdefghijklmnopqrst", 1, 1, "", 1);
+    test("abcdefghijklmnopqrst", 1, 1, "abcde", 1);
+    test("abcdefghijklmnopqrst", 1, 1, "abcdefghij", 1);
+    test("abcdefghijklmnopqrst", 1, 1, "abcdefghijklmnopqrst", 1);
+    test("abcdefghijklmnopqrst", 1, 9, "", 9);
+    test("abcdefghijklmnopqrst", 1, 9, "abcde", 1);
+    test("abcdefghijklmnopqrst", 1, 9, "abcdefghij", 1);
+    test("abcdefghijklmnopqrst", 1, 9, "abcdefghijklmnopqrst", 1);
+    test("abcdefghijklmnopqrst", 1, 18, "", 18);
+    test("abcdefghijklmnopqrst", 1, 18, "abcde", 1);
+    test("abcdefghijklmnopqrst", 1, 18, "abcdefghij", 1);
+    test("abcdefghijklmnopqrst", 1, 18, "abcdefghijklmnopqrst", 1);
+    test("abcdefghijklmnopqrst", 1, 19, "", 19);
+    test("abcdefghijklmnopqrst", 1, 19, "abcde", 1);
+    test("abcdefghijklmnopqrst", 1, 19, "abcdefghij", 1);
+    test("abcdefghijklmnopqrst", 1, 19, "abcdefghijklmnopqrst", 1);
+    test("abcdefghijklmnopqrst", 1, 20, "", 19);
+    test("abcdefghijklmnopqrst", 1, 20, "abcde", 1);
+    test("abcdefghijklmnopqrst", 1, 20, "abcdefghij", 1);
+    test("abcdefghijklmnopqrst", 1, 20, "abcdefghijklmnopqrst", 1);
+    test("abcdefghijklmnopqrst", 10, 0, "", 0);
+    test("abcdefghijklmnopqrst", 10, 0, "abcde", -5);
+    test("abcdefghijklmnopqrst", 10, 0, "abcdefghij", -10);
+    test("abcdefghijklmnopqrst", 10, 0, "abcdefghijklmnopqrst", -20);
+    test("abcdefghijklmnopqrst", 10, 1, "", 1);
+    test("abcdefghijklmnopqrst", 10, 1, "abcde", 10);
+    test("abcdefghijklmnopqrst", 10, 1, "abcdefghij", 10);
+    test("abcdefghijklmnopqrst", 10, 1, "abcdefghijklmnopqrst", 10);
+    test("abcdefghijklmnopqrst", 10, 5, "", 5);
+    test("abcdefghijklmnopqrst", 10, 5, "abcde", 10);
+    test("abcdefghijklmnopqrst", 10, 5, "abcdefghij", 10);
+    test("abcdefghijklmnopqrst", 10, 5, "abcdefghijklmnopqrst", 10);
+    test("abcdefghijklmnopqrst", 10, 9, "", 9);
+    test("abcdefghijklmnopqrst", 10, 9, "abcde", 10);
+    test("abcdefghijklmnopqrst", 10, 9, "abcdefghij", 10);
+    test("abcdefghijklmnopqrst", 10, 9, "abcdefghijklmnopqrst", 10);
+    test("abcdefghijklmnopqrst", 10, 10, "", 10);
+    test("abcdefghijklmnopqrst", 10, 10, "abcde", 10);
+    test("abcdefghijklmnopqrst", 10, 10, "abcdefghij", 10);
+    test("abcdefghijklmnopqrst", 10, 10, "abcdefghijklmnopqrst", 10);
+    test("abcdefghijklmnopqrst", 10, 11, "", 10);
+    test("abcdefghijklmnopqrst", 10, 11, "abcde", 10);
+    test("abcdefghijklmnopqrst", 10, 11, "abcdefghij", 10);
+    test("abcdefghijklmnopqrst", 10, 11, "abcdefghijklmnopqrst", 10);
+    test("abcdefghijklmnopqrst", 19, 0, "", 0);
+    test("abcdefghijklmnopqrst", 19, 0, "abcde", -5);
+    test("abcdefghijklmnopqrst", 19, 0, "abcdefghij", -10);
+    test("abcdefghijklmnopqrst", 19, 0, "abcdefghijklmnopqrst", -20);
+    test("abcdefghijklmnopqrst", 19, 1, "", 1);
+    test("abcdefghijklmnopqrst", 19, 1, "abcde", 19);
+    test("abcdefghijklmnopqrst", 19, 1, "abcdefghij", 19);
+    test("abcdefghijklmnopqrst", 19, 1, "abcdefghijklmnopqrst", 19);
+    test("abcdefghijklmnopqrst", 19, 2, "", 1);
+    test("abcdefghijklmnopqrst", 19, 2, "abcde", 19);
+    test("abcdefghijklmnopqrst", 19, 2, "abcdefghij", 19);
+    test("abcdefghijklmnopqrst", 19, 2, "abcdefghijklmnopqrst", 19);
+    test("abcdefghijklmnopqrst", 20, 0, "", 0);
+    test("abcdefghijklmnopqrst", 20, 0, "abcde", -5);
+    test("abcdefghijklmnopqrst", 20, 0, "abcdefghij", -10);
+    test("abcdefghijklmnopqrst", 20, 0, "abcdefghijklmnopqrst", -20);
+    test("abcdefghijklmnopqrst", 20, 1, "", 0);
+    test("abcdefghijklmnopqrst", 20, 1, "abcde", -5);
+    test("abcdefghijklmnopqrst", 20, 1, "abcdefghij", -10);
+    test("abcdefghijklmnopqrst", 20, 1, "abcdefghijklmnopqrst", -20);
+    test("abcdefghijklmnopqrst", 21, 0, "", 0);
+    test("abcdefghijklmnopqrst", 21, 0, "abcde", 0);
+    test("abcdefghijklmnopqrst", 21, 0, "abcdefghij", 0);
+    test("abcdefghijklmnopqrst", 21, 0, "abcdefghijklmnopqrst", 0);
+}
+
+
+int main()
+{
+    test0();
+    test1();
+    test2();
+
+    {
+    test("", 0, 0, "", 0);
+    test("", 0, 0, "abcde", -5);
+    test("", 0, 0, "abcdefghij", -10);
+    test("", 0, 0, "abcdefghijklmnopqrst", -20);
+    test("abcde", 0, 2, "", 5);
+    test("abcde", 0, 6,"abcde", 0);
+    test("abcde", 0, 6, "abcdefghij", -5);
+    test("abcde", 0, 6, "abcdefghijklmnopqrst", -15);
+    test("abcdefghij", 3, 3, "", 10);
+    test("abcdefghij", 3, 3,"abcde", 5);
+    test("abcdefghij", 3, 3, "def", 0);
+    test("abcdefghij", 0, 4, "abcdefghijklmnopqrst", -10);
+    test("abcdefghijklmnopqrst", 5, 5, "", 20);
+    test("abcdefghijklmnopqrst", 0, 8, "abcde", 15);
+    test("abcdefghijklmnopqrst", 0, 12, "abcdefghij", 10);
+    test("abcdefghijklmnopqrst", 0, -1, "abcdefghijklmnopqrst", 0);
+    }
+
+    {
+    test(L"", 0, 0, L"", 0);
+    test(L"", 0, 0, L"abcde", -5);
+    test(L"", 0, 0, L"abcdefghij", -10);
+    test(L"", 0, 0, L"abcdefghijklmnopqrst", -20);
+    test(L"abcde", 0, 2, L"", 5);
+    test(L"abcde", 0, 6, L"abcde", 0);
+    test(L"abcde", 0, 6, L"abcdefghij", -5);
+    test(L"abcde", 0, 6, L"abcdefghijklmnopqrst", -15);
+    test(L"abcdefghij", 3, 3, L"", 10);
+    test(L"abcdefghij", 3, 3, L"abcde", 5);
+    test(L"abcdefghij", 3, 3, L"def", 0);
+    test(L"abcdefghij", 0, 4, L"abcdefghijklmnopqrst", -10);
+    test(L"abcdefghijklmnopqrst", 5, 5, L"", 20);
+    test(L"abcdefghijklmnopqrst", 0, 8, L"abcde", 15);
+    test(L"abcdefghijklmnopqrst", 0, 12, L"abcdefghij", 10);
+    test(L"abcdefghijklmnopqrst", 0, -1, L"abcdefghijklmnopqrst", 0);
+    }
+
+#if __cplusplus >= 201103L
+    {
+    test(U"", 0, 0, U"", 0);
+    test(U"", 0, 0, U"abcde", -5);
+    test(U"", 0, 0, U"abcdefghij", -10);
+    test(U"", 0, 0, U"abcdefghijklmnopqrst", -20);
+    test(U"abcde", 0, 2, U"", 5);
+    test(U"abcde", 0, 6, U"abcde", 0);
+    test(U"abcde", 0, 6, U"abcdefghij", -5);
+    test(U"abcde", 0, 6, U"abcdefghijklmnopqrst", -15);
+    test(U"abcdefghij", 3, 3, U"", 10);
+    test(U"abcdefghij", 3, 3, U"abcde", 5);
+    test(U"abcdefghij", 3, 3, U"def", 0);
+    test(U"abcdefghij", 0, 4, U"abcdefghijklmnopqrst", -10);
+    test(U"abcdefghijklmnopqrst", 5, 5, U"", 20);
+    test(U"abcdefghijklmnopqrst", 0, 8, U"abcde", 15);
+    test(U"abcdefghijklmnopqrst", 0, 12, U"abcdefghij", 10);
+    test(U"abcdefghijklmnopqrst", 0, -1, U"abcdefghijklmnopqrst", 0);
+    }
+ 
+    {
+    test(u"", 0, 0, u"", 0);
+    test(u"", 0, 0, u"abcde", -5);
+    test(u"", 0, 0, u"abcdefghij", -10);
+    test(u"", 0, 0, u"abcdefghijklmnopqrst", -20);
+    test(u"abcde", 0, 2, u"", 5);
+    test(u"abcde", 0, 6, u"abcde", 0);
+    test(u"abcde", 0, 6, u"abcdefghij", -5);
+    test(u"abcde", 0, 6, u"abcdefghijklmnopqrst", -15);
+    test(u"abcdefghij", 3, 3, u"", 10);
+    test(u"abcdefghij", 3, 3, u"abcde", 5);
+    test(u"abcdefghij", 3, 3, u"def", 0);
+    test(u"abcdefghij", 0, 4, u"abcdefghijklmnopqrst", -10);
+    test(u"abcdefghijklmnopqrst", 5, 5, u"", 20);
+    test(u"abcdefghijklmnopqrst", 0, 8, u"abcde", 15);
+    test(u"abcdefghijklmnopqrst", 0, 12, u"abcdefghij", 10);
+    test(u"abcdefghijklmnopqrst", 0, -1, u"abcdefghijklmnopqrst", 0);
+    }
+#endif
+
+#if _LIBCPP_STD_VER > 11
+    {
+    typedef std::experimental::basic_string_view<char, constexpr_char_traits<char>> SV;
+    constexpr SV  sv1;
+    constexpr SV  sv2 { "abcde", 5 };
+    static_assert ( sv1.compare(0, 0, "") == 0, "" );
+    static_assert ( sv1.compare(0, 0, "abcde") == -1, "" );
+    static_assert ( sv2.compare(0, 2, "") == 1, "" );
+    static_assert ( sv2.compare(0, 6, "abcde") == 0, "" );
+    }
+#endif
+}

Added: libcxx/trunk/test/std/experimental/string.view/string.view.ops/compare.size_size_sv.pass.cpp
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/test/std/experimental/string.view/string.view.ops/compare.size_size_sv.pass.cpp?rev=224658&view=auto
==============================================================================
--- libcxx/trunk/test/std/experimental/string.view/string.view.ops/compare.size_size_sv.pass.cpp (added)
+++ libcxx/trunk/test/std/experimental/string.view/string.view.ops/compare.size_size_sv.pass.cpp Fri Dec 19 19:40:03 2014
@@ -0,0 +1,397 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+
+// <string_view>
+
+// constexpr int compare(size_type pos1, size_type n1, basic_string_view str) const;
+
+#include <experimental/string_view>
+#include <cassert>
+
+#include "constexpr_char_traits.hpp"
+
+int sign ( int x ) { return x > 0 ? 1 : ( x < 0 ? -1 : 0 ); }
+
+template<typename CharT>
+void test1 ( std::experimental::basic_string_view<CharT> sv1, size_t pos1, size_t n1,
+            std::experimental::basic_string_view<CharT> sv2, int expected ) {
+
+    try
+    {
+        assert ( sign( sv1.compare(pos1, n1, sv2)) == sign(expected));
+        assert(pos1 <= sv1.size());
+    }
+    catch (const std::out_of_range&) { assert(pos1 > sv1.size()); }
+}
+
+
+template<typename CharT>
+void test ( const CharT *s1, size_t pos1, size_t n1, const CharT  *s2, int expected ) {
+    typedef std::experimental::basic_string_view<CharT> string_view_t;
+    
+    string_view_t sv1 ( s1 );
+    string_view_t sv2 ( s2 );
+    test1(sv1, pos1, n1, sv2, expected);
+}
+
+void test0()
+{
+    test("", 0, 0, "", 0);
+    test("", 0, 0, "abcde", -5);
+    test("", 0, 0, "abcdefghij", -10);
+    test("", 0, 0, "abcdefghijklmnopqrst", -20);
+    test("", 0, 1, "", 0);
+    test("", 0, 1, "abcde", -5);
+    test("", 0, 1, "abcdefghij", -10);
+    test("", 0, 1, "abcdefghijklmnopqrst", -20);
+    test("", 1, 0, "", 0);
+    test("", 1, 0, "abcde", 0);
+    test("", 1, 0, "abcdefghij", 0);
+    test("", 1, 0, "abcdefghijklmnopqrst", 0);
+    test("abcde", 0, 0, "", 0);
+    test("abcde", 0, 0, "abcde", -5);
+    test("abcde", 0, 0, "abcdefghij", -10);
+    test("abcde", 0, 0, "abcdefghijklmnopqrst", -20);
+    test("abcde", 0, 1, "", 1);
+    test("abcde", 0, 1, "abcde", -4);
+    test("abcde", 0, 1, "abcdefghij", -9);
+    test("abcde", 0, 1, "abcdefghijklmnopqrst", -19);
+    test("abcde", 0, 2, "", 2);
+    test("abcde", 0, 2, "abcde", -3);
+    test("abcde", 0, 2, "abcdefghij", -8);
+    test("abcde", 0, 2, "abcdefghijklmnopqrst", -18);
+    test("abcde", 0, 4, "", 4);
+    test("abcde", 0, 4, "abcde", -1);
+    test("abcde", 0, 4, "abcdefghij", -6);
+    test("abcde", 0, 4, "abcdefghijklmnopqrst", -16);
+    test("abcde", 0, 5, "", 5);
+    test("abcde", 0, 5, "abcde", 0);
+    test("abcde", 0, 5, "abcdefghij", -5);
+    test("abcde", 0, 5, "abcdefghijklmnopqrst", -15);
+    test("abcde", 0, 6, "", 5);
+    test("abcde", 0, 6, "abcde", 0);
+    test("abcde", 0, 6, "abcdefghij", -5);
+    test("abcde", 0, 6, "abcdefghijklmnopqrst", -15);
+    test("abcde", 1, 0, "", 0);
+    test("abcde", 1, 0, "abcde", -5);
+    test("abcde", 1, 0, "abcdefghij", -10);
+    test("abcde", 1, 0, "abcdefghijklmnopqrst", -20);
+    test("abcde", 1, 1, "", 1);
+    test("abcde", 1, 1, "abcde", 1);
+    test("abcde", 1, 1, "abcdefghij", 1);
+    test("abcde", 1, 1, "abcdefghijklmnopqrst", 1);
+    test("abcde", 1, 2, "", 2);
+    test("abcde", 1, 2, "abcde", 1);
+    test("abcde", 1, 2, "abcdefghij", 1);
+    test("abcde", 1, 2, "abcdefghijklmnopqrst", 1);
+    test("abcde", 1, 3, "", 3);
+    test("abcde", 1, 3, "abcde", 1);
+    test("abcde", 1, 3, "abcdefghij", 1);
+    test("abcde", 1, 3, "abcdefghijklmnopqrst", 1);
+    test("abcde", 1, 4, "", 4);
+    test("abcde", 1, 4, "abcde", 1);
+    test("abcde", 1, 4, "abcdefghij", 1);
+    test("abcde", 1, 4, "abcdefghijklmnopqrst", 1);
+    test("abcde", 1, 5, "", 4);
+    test("abcde", 1, 5, "abcde", 1);
+    test("abcde", 1, 5, "abcdefghij", 1);
+    test("abcde", 1, 5, "abcdefghijklmnopqrst", 1);
+    test("abcde", 2, 0, "", 0);
+    test("abcde", 2, 0, "abcde", -5);
+    test("abcde", 2, 0, "abcdefghij", -10);
+    test("abcde", 2, 0, "abcdefghijklmnopqrst", -20);
+    test("abcde", 2, 1, "", 1);
+    test("abcde", 2, 1, "abcde", 2);
+    test("abcde", 2, 1, "abcdefghij", 2);
+    test("abcde", 2, 1, "abcdefghijklmnopqrst", 2);
+    test("abcde", 2, 2, "", 2);
+    test("abcde", 2, 2, "abcde", 2);
+    test("abcde", 2, 2, "abcdefghij", 2);
+    test("abcde", 2, 2, "abcdefghijklmnopqrst", 2);
+    test("abcde", 2, 3, "", 3);
+    test("abcde", 2, 3, "abcde", 2);
+    test("abcde", 2, 3, "abcdefghij", 2);
+    test("abcde", 2, 3, "abcdefghijklmnopqrst", 2);
+    test("abcde", 2, 4, "", 3);
+    test("abcde", 2, 4, "abcde", 2);
+    test("abcde", 2, 4, "abcdefghij", 2);
+    test("abcde", 2, 4, "abcdefghijklmnopqrst", 2);
+    test("abcde", 4, 0, "", 0);
+    test("abcde", 4, 0, "abcde", -5);
+    test("abcde", 4, 0, "abcdefghij", -10);
+    test("abcde", 4, 0, "abcdefghijklmnopqrst", -20);
+    test("abcde", 4, 1, "", 1);
+    test("abcde", 4, 1, "abcde", 4);
+    test("abcde", 4, 1, "abcdefghij", 4);
+    test("abcde", 4, 1, "abcdefghijklmnopqrst", 4);
+    test("abcde", 4, 2, "", 1);
+    test("abcde", 4, 2, "abcde", 4);
+    test("abcde", 4, 2, "abcdefghij", 4);
+    test("abcde", 4, 2, "abcdefghijklmnopqrst", 4);
+    test("abcde", 5, 0, "", 0);
+    test("abcde", 5, 0, "abcde", -5);
+    test("abcde", 5, 0, "abcdefghij", -10);
+    test("abcde", 5, 0, "abcdefghijklmnopqrst", -20);
+    test("abcde", 5, 1, "", 0);
+    test("abcde", 5, 1, "abcde", -5);
+    test("abcde", 5, 1, "abcdefghij", -10);
+    test("abcde", 5, 1, "abcdefghijklmnopqrst", -20);
+}
+
+void test1()
+{
+    test("abcde", 6, 0, "", 0);
+    test("abcde", 6, 0, "abcde", 0);
+    test("abcde", 6, 0, "abcdefghij", 0);
+    test("abcde", 6, 0, "abcdefghijklmnopqrst", 0);
+    test("abcdefghij", 0, 0, "", 0);
+    test("abcdefghij", 0, 0, "abcde", -5);
+    test("abcdefghij", 0, 0, "abcdefghij", -10);
+    test("abcdefghij", 0, 0, "abcdefghijklmnopqrst", -20);
+    test("abcdefghij", 0, 1, "", 1);
+    test("abcdefghij", 0, 1, "abcde", -4);
+    test("abcdefghij", 0, 1, "abcdefghij", -9);
+    test("abcdefghij", 0, 1, "abcdefghijklmnopqrst", -19);
+    test("abcdefghij", 0, 5, "", 5);
+    test("abcdefghij", 0, 5, "abcde", 0);
+    test("abcdefghij", 0, 5, "abcdefghij", -5);
+    test("abcdefghij", 0, 5, "abcdefghijklmnopqrst", -15);
+    test("abcdefghij", 0, 9, "", 9);
+    test("abcdefghij", 0, 9, "abcde", 4);
+    test("abcdefghij", 0, 9, "abcdefghij", -1);
+    test("abcdefghij", 0, 9, "abcdefghijklmnopqrst", -11);
+    test("abcdefghij", 0, 10, "", 10);
+    test("abcdefghij", 0, 10, "abcde", 5);
+    test("abcdefghij", 0, 10, "abcdefghij", 0);
+    test("abcdefghij", 0, 10, "abcdefghijklmnopqrst", -10);
+    test("abcdefghij", 0, 11, "", 10);
+    test("abcdefghij", 0, 11, "abcde", 5);
+    test("abcdefghij", 0, 11, "abcdefghij", 0);
+    test("abcdefghij", 0, 11, "abcdefghijklmnopqrst", -10);
+    test("abcdefghij", 1, 0, "", 0);
+    test("abcdefghij", 1, 0, "abcde", -5);
+    test("abcdefghij", 1, 0, "abcdefghij", -10);
+    test("abcdefghij", 1, 0, "abcdefghijklmnopqrst", -20);
+    test("abcdefghij", 1, 1, "", 1);
+    test("abcdefghij", 1, 1, "abcde", 1);
+    test("abcdefghij", 1, 1, "abcdefghij", 1);
+    test("abcdefghij", 1, 1, "abcdefghijklmnopqrst", 1);
+    test("abcdefghij", 1, 4, "", 4);
+    test("abcdefghij", 1, 4, "abcde", 1);
+    test("abcdefghij", 1, 4, "abcdefghij", 1);
+    test("abcdefghij", 1, 4, "abcdefghijklmnopqrst", 1);
+    test("abcdefghij", 1, 8, "", 8);
+    test("abcdefghij", 1, 8, "abcde", 1);
+    test("abcdefghij", 1, 8, "abcdefghij", 1);
+    test("abcdefghij", 1, 8, "abcdefghijklmnopqrst", 1);
+    test("abcdefghij", 1, 9, "", 9);
+    test("abcdefghij", 1, 9, "abcde", 1);
+    test("abcdefghij", 1, 9, "abcdefghij", 1);
+    test("abcdefghij", 1, 9, "abcdefghijklmnopqrst", 1);
+    test("abcdefghij", 1, 10, "", 9);
+    test("abcdefghij", 1, 10, "abcde", 1);
+    test("abcdefghij", 1, 10, "abcdefghij", 1);
+    test("abcdefghij", 1, 10, "abcdefghijklmnopqrst", 1);
+    test("abcdefghij", 5, 0, "", 0);
+    test("abcdefghij", 5, 0, "abcde", -5);
+    test("abcdefghij", 5, 0, "abcdefghij", -10);
+    test("abcdefghij", 5, 0, "abcdefghijklmnopqrst", -20);
+    test("abcdefghij", 5, 1, "", 1);
+    test("abcdefghij", 5, 1, "abcde", 5);
+    test("abcdefghij", 5, 1, "abcdefghij", 5);
+    test("abcdefghij", 5, 1, "abcdefghijklmnopqrst", 5);
+    test("abcdefghij", 5, 2, "", 2);
+    test("abcdefghij", 5, 2, "abcde", 5);
+    test("abcdefghij", 5, 2, "abcdefghij", 5);
+    test("abcdefghij", 5, 2, "abcdefghijklmnopqrst", 5);
+    test("abcdefghij", 5, 4, "", 4);
+    test("abcdefghij", 5, 4, "abcde", 5);
+    test("abcdefghij", 5, 4, "abcdefghij", 5);
+    test("abcdefghij", 5, 4, "abcdefghijklmnopqrst", 5);
+    test("abcdefghij", 5, 5, "", 5);
+    test("abcdefghij", 5, 5, "abcde", 5);
+    test("abcdefghij", 5, 5, "abcdefghij", 5);
+    test("abcdefghij", 5, 5, "abcdefghijklmnopqrst", 5);
+    test("abcdefghij", 5, 6, "", 5);
+    test("abcdefghij", 5, 6, "abcde", 5);
+    test("abcdefghij", 5, 6, "abcdefghij", 5);
+    test("abcdefghij", 5, 6, "abcdefghijklmnopqrst", 5);
+    test("abcdefghij", 9, 0, "", 0);
+    test("abcdefghij", 9, 0, "abcde", -5);
+    test("abcdefghij", 9, 0, "abcdefghij", -10);
+    test("abcdefghij", 9, 0, "abcdefghijklmnopqrst", -20);
+    test("abcdefghij", 9, 1, "", 1);
+    test("abcdefghij", 9, 1, "abcde", 9);
+    test("abcdefghij", 9, 1, "abcdefghij", 9);
+    test("abcdefghij", 9, 1, "abcdefghijklmnopqrst", 9);
+    test("abcdefghij", 9, 2, "", 1);
+    test("abcdefghij", 9, 2, "abcde", 9);
+    test("abcdefghij", 9, 2, "abcdefghij", 9);
+    test("abcdefghij", 9, 2, "abcdefghijklmnopqrst", 9);
+    test("abcdefghij", 10, 0, "", 0);
+    test("abcdefghij", 10, 0, "abcde", -5);
+    test("abcdefghij", 10, 0, "abcdefghij", -10);
+    test("abcdefghij", 10, 0, "abcdefghijklmnopqrst", -20);
+    test("abcdefghij", 10, 1, "", 0);
+    test("abcdefghij", 10, 1, "abcde", -5);
+    test("abcdefghij", 10, 1, "abcdefghij", -10);
+    test("abcdefghij", 10, 1, "abcdefghijklmnopqrst", -20);
+    test("abcdefghij", 11, 0, "", 0);
+    test("abcdefghij", 11, 0, "abcde", 0);
+    test("abcdefghij", 11, 0, "abcdefghij", 0);
+    test("abcdefghij", 11, 0, "abcdefghijklmnopqrst", 0);
+}
+
+void test2()
+{
+    test("abcdefghijklmnopqrst", 0, 0, "", 0);
+    test("abcdefghijklmnopqrst", 0, 0, "abcde", -5);
+    test("abcdefghijklmnopqrst", 0, 0, "abcdefghij", -10);
+    test("abcdefghijklmnopqrst", 0, 0, "abcdefghijklmnopqrst", -20);
+    test("abcdefghijklmnopqrst", 0, 1, "", 1);
+    test("abcdefghijklmnopqrst", 0, 1, "abcde", -4);
+    test("abcdefghijklmnopqrst", 0, 1, "abcdefghij", -9);
+    test("abcdefghijklmnopqrst", 0, 1, "abcdefghijklmnopqrst", -19);
+    test("abcdefghijklmnopqrst", 0, 10, "", 10);
+    test("abcdefghijklmnopqrst", 0, 10, "abcde", 5);
+    test("abcdefghijklmnopqrst", 0, 10, "abcdefghij", 0);
+    test("abcdefghijklmnopqrst", 0, 10, "abcdefghijklmnopqrst", -10);
+    test("abcdefghijklmnopqrst", 0, 19, "", 19);
+    test("abcdefghijklmnopqrst", 0, 19, "abcde", 14);
+    test("abcdefghijklmnopqrst", 0, 19, "abcdefghij", 9);
+    test("abcdefghijklmnopqrst", 0, 19, "abcdefghijklmnopqrst", -1);
+    test("abcdefghijklmnopqrst", 0, 20, "", 20);
+    test("abcdefghijklmnopqrst", 0, 20, "abcde", 15);
+    test("abcdefghijklmnopqrst", 0, 20, "abcdefghij", 10);
+    test("abcdefghijklmnopqrst", 0, 20, "abcdefghijklmnopqrst", 0);
+    test("abcdefghijklmnopqrst", 0, 21, "", 20);
+    test("abcdefghijklmnopqrst", 0, 21, "abcde", 15);
+    test("abcdefghijklmnopqrst", 0, 21, "abcdefghij", 10);
+    test("abcdefghijklmnopqrst", 0, 21, "abcdefghijklmnopqrst", 0);
+    test("abcdefghijklmnopqrst", 1, 0, "", 0);
+    test("abcdefghijklmnopqrst", 1, 0, "abcde", -5);
+    test("abcdefghijklmnopqrst", 1, 0, "abcdefghij", -10);
+    test("abcdefghijklmnopqrst", 1, 0, "abcdefghijklmnopqrst", -20);
+    test("abcdefghijklmnopqrst", 1, 1, "", 1);
+    test("abcdefghijklmnopqrst", 1, 1, "abcde", 1);
+    test("abcdefghijklmnopqrst", 1, 1, "abcdefghij", 1);
+    test("abcdefghijklmnopqrst", 1, 1, "abcdefghijklmnopqrst", 1);
+    test("abcdefghijklmnopqrst", 1, 9, "", 9);
+    test("abcdefghijklmnopqrst", 1, 9, "abcde", 1);
+    test("abcdefghijklmnopqrst", 1, 9, "abcdefghij", 1);
+    test("abcdefghijklmnopqrst", 1, 9, "abcdefghijklmnopqrst", 1);
+    test("abcdefghijklmnopqrst", 1, 18, "", 18);
+    test("abcdefghijklmnopqrst", 1, 18, "abcde", 1);
+    test("abcdefghijklmnopqrst", 1, 18, "abcdefghij", 1);
+    test("abcdefghijklmnopqrst", 1, 18, "abcdefghijklmnopqrst", 1);
+    test("abcdefghijklmnopqrst", 1, 19, "", 19);
+    test("abcdefghijklmnopqrst", 1, 19, "abcde", 1);
+    test("abcdefghijklmnopqrst", 1, 19, "abcdefghij", 1);
+    test("abcdefghijklmnopqrst", 1, 19, "abcdefghijklmnopqrst", 1);
+    test("abcdefghijklmnopqrst", 1, 20, "", 19);
+    test("abcdefghijklmnopqrst", 1, 20, "abcde", 1);
+    test("abcdefghijklmnopqrst", 1, 20, "abcdefghij", 1);
+    test("abcdefghijklmnopqrst", 1, 20, "abcdefghijklmnopqrst", 1);
+    test("abcdefghijklmnopqrst", 10, 0, "", 0);
+    test("abcdefghijklmnopqrst", 10, 0, "abcde", -5);
+    test("abcdefghijklmnopqrst", 10, 0, "abcdefghij", -10);
+    test("abcdefghijklmnopqrst", 10, 0, "abcdefghijklmnopqrst", -20);
+    test("abcdefghijklmnopqrst", 10, 1, "", 1);
+    test("abcdefghijklmnopqrst", 10, 1, "abcde", 10);
+    test("abcdefghijklmnopqrst", 10, 1, "abcdefghij", 10);
+    test("abcdefghijklmnopqrst", 10, 1, "abcdefghijklmnopqrst", 10);
+    test("abcdefghijklmnopqrst", 10, 5, "", 5);
+    test("abcdefghijklmnopqrst", 10, 5, "abcde", 10);
+    test("abcdefghijklmnopqrst", 10, 5, "abcdefghij", 10);
+    test("abcdefghijklmnopqrst", 10, 5, "abcdefghijklmnopqrst", 10);
+    test("abcdefghijklmnopqrst", 10, 9, "", 9);
+    test("abcdefghijklmnopqrst", 10, 9, "abcde", 10);
+    test("abcdefghijklmnopqrst", 10, 9, "abcdefghij", 10);
+    test("abcdefghijklmnopqrst", 10, 9, "abcdefghijklmnopqrst", 10);
+    test("abcdefghijklmnopqrst", 10, 10, "", 10);
+    test("abcdefghijklmnopqrst", 10, 10, "abcde", 10);
+    test("abcdefghijklmnopqrst", 10, 10, "abcdefghij", 10);
+    test("abcdefghijklmnopqrst", 10, 10, "abcdefghijklmnopqrst", 10);
+    test("abcdefghijklmnopqrst", 10, 11, "", 10);
+    test("abcdefghijklmnopqrst", 10, 11, "abcde", 10);
+    test("abcdefghijklmnopqrst", 10, 11, "abcdefghij", 10);
+    test("abcdefghijklmnopqrst", 10, 11, "abcdefghijklmnopqrst", 10);
+    test("abcdefghijklmnopqrst", 19, 0, "", 0);
+    test("abcdefghijklmnopqrst", 19, 0, "abcde", -5);
+    test("abcdefghijklmnopqrst", 19, 0, "abcdefghij", -10);
+    test("abcdefghijklmnopqrst", 19, 0, "abcdefghijklmnopqrst", -20);
+    test("abcdefghijklmnopqrst", 19, 1, "", 1);
+    test("abcdefghijklmnopqrst", 19, 1, "abcde", 19);
+    test("abcdefghijklmnopqrst", 19, 1, "abcdefghij", 19);
+    test("abcdefghijklmnopqrst", 19, 1, "abcdefghijklmnopqrst", 19);
+    test("abcdefghijklmnopqrst", 19, 2, "", 1);
+    test("abcdefghijklmnopqrst", 19, 2, "abcde", 19);
+    test("abcdefghijklmnopqrst", 19, 2, "abcdefghij", 19);
+    test("abcdefghijklmnopqrst", 19, 2, "abcdefghijklmnopqrst", 19);
+    test("abcdefghijklmnopqrst", 20, 0, "", 0);
+    test("abcdefghijklmnopqrst", 20, 0, "abcde", -5);
+    test("abcdefghijklmnopqrst", 20, 0, "abcdefghij", -10);
+    test("abcdefghijklmnopqrst", 20, 0, "abcdefghijklmnopqrst", -20);
+    test("abcdefghijklmnopqrst", 20, 1, "", 0);
+    test("abcdefghijklmnopqrst", 20, 1, "abcde", -5);
+    test("abcdefghijklmnopqrst", 20, 1, "abcdefghij", -10);
+    test("abcdefghijklmnopqrst", 20, 1, "abcdefghijklmnopqrst", -20);
+    test("abcdefghijklmnopqrst", 21, 0, "", 0);
+    test("abcdefghijklmnopqrst", 21, 0, "abcde", 0);
+    test("abcdefghijklmnopqrst", 21, 0, "abcdefghij", 0);
+    test("abcdefghijklmnopqrst", 21, 0, "abcdefghijklmnopqrst", 0);
+}
+
+
+int main () {
+    test0();
+    test1();
+    test2();
+    
+    {
+    test("abcde", 5, 1, "", 0);
+    test("abcde", 2, 4, "", 3);
+    test("abcde", 2, 4, "abcde", 2);
+    test("ABCde", 2, 4, "abcde", -1);
+    }
+
+    {
+    test(L"abcde", 5, 1, L"", 0);
+    test(L"abcde", 2, 4, L"", 3);
+    test(L"abcde", 2, 4, L"abcde", 2);
+    test(L"ABCde", 2, 4, L"abcde", -1);
+    }
+
+#if __cplusplus >= 201103L
+    {
+    test(u"abcde", 5, 1, u"", 0);
+    test(u"abcde", 2, 4, u"", 3);
+    test(u"abcde", 2, 4, u"abcde", 2);
+    test(u"ABCde", 2, 4, u"abcde", -1);
+    }
+
+    {
+    test(U"abcde", 5, 1, U"", 0);
+    test(U"abcde", 2, 4, U"", 3);
+    test(U"abcde", 2, 4, U"abcde", 2);
+    test(U"ABCde", 2, 4, U"abcde", -1);
+    }
+#endif
+
+#if _LIBCPP_STD_VER > 11
+    {
+    typedef std::experimental::basic_string_view<char, constexpr_char_traits<char>> SV;
+    constexpr SV  sv1 { "abcde", 5 };
+    constexpr SV  sv2 { "abcde", 0 };
+    static_assert ( sv1.compare(5, 1, sv2) == 0, "" );
+    static_assert ( sv1.compare(2, 4, sv2) == 1, "" );
+    }
+#endif
+}

Added: libcxx/trunk/test/std/experimental/string.view/string.view.ops/compare.size_size_sv_pointer_size.pass.cpp
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/test/std/experimental/string.view/string.view.ops/compare.size_size_sv_pointer_size.pass.cpp?rev=224658&view=auto
==============================================================================
--- libcxx/trunk/test/std/experimental/string.view/string.view.ops/compare.size_size_sv_pointer_size.pass.cpp (added)
+++ libcxx/trunk/test/std/experimental/string.view/string.view.ops/compare.size_size_sv_pointer_size.pass.cpp Fri Dec 19 19:40:03 2014
@@ -0,0 +1,1349 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+
+// <string_view>
+
+// constexpr int compare(size_type pos1, size_type n1,
+//             const charT* s, size_type n2) const;
+
+#include <experimental/string_view>
+#include <cassert>
+
+#include "constexpr_char_traits.hpp"
+
+int sign ( int x ) { return x > 0 ? 1 : ( x < 0 ? -1 : 0 ); }
+
+template<typename CharT>
+void test1 ( std::experimental::basic_string_view<CharT> sv1, size_t pos1, size_t n1,
+             const CharT *s2, size_t n2,
+             int expected ) {
+
+    try
+    {
+        assert ( sign( sv1.compare(pos1, n1, s2, n2)) == sign(expected));
+        assert(pos1 <= sv1.size());
+    }
+    catch (const std::out_of_range&) { assert(pos1 > sv1.size()); }
+}
+
+
+template<typename CharT>
+void test ( const CharT *s1, size_t pos1, size_t n1, 
+            const CharT *s2, size_t n2, 
+            int expected ) {
+    typedef std::experimental::basic_string_view<CharT> string_view_t;
+    
+    string_view_t sv1 ( s1 );
+    test1 (sv1, pos1, n1, s2, n2, expected);
+}
+
+
+void test0()
+{
+    test("", 0, 0, "", 0, 0);
+    test("", 0, 0, "abcde", 0, 0);
+    test("", 0, 0, "abcde", 1, -1);
+    test("", 0, 0, "abcde", 2, -2);
+    test("", 0, 0, "abcde", 4, -4);
+    test("", 0, 0, "abcde", 5, -5);
+    test("", 0, 0, "abcdefghij", 0, 0);
+    test("", 0, 0, "abcdefghij", 1, -1);
+    test("", 0, 0, "abcdefghij", 5, -5);
+    test("", 0, 0, "abcdefghij", 9, -9);
+    test("", 0, 0, "abcdefghij", 10, -10);
+    test("", 0, 0, "abcdefghijklmnopqrst", 0, 0);
+    test("", 0, 0, "abcdefghijklmnopqrst", 1, -1);
+    test("", 0, 0, "abcdefghijklmnopqrst", 10, -10);
+    test("", 0, 0, "abcdefghijklmnopqrst", 19, -19);
+    test("", 0, 0, "abcdefghijklmnopqrst", 20, -20);
+    test("", 0, 1, "", 0, 0);
+    test("", 0, 1, "abcde", 0, 0);
+    test("", 0, 1, "abcde", 1, -1);
+    test("", 0, 1, "abcde", 2, -2);
+    test("", 0, 1, "abcde", 4, -4);
+    test("", 0, 1, "abcde", 5, -5);
+    test("", 0, 1, "abcdefghij", 0, 0);
+    test("", 0, 1, "abcdefghij", 1, -1);
+    test("", 0, 1, "abcdefghij", 5, -5);
+    test("", 0, 1, "abcdefghij", 9, -9);
+    test("", 0, 1, "abcdefghij", 10, -10);
+    test("", 0, 1, "abcdefghijklmnopqrst", 0, 0);
+    test("", 0, 1, "abcdefghijklmnopqrst", 1, -1);
+    test("", 0, 1, "abcdefghijklmnopqrst", 10, -10);
+    test("", 0, 1, "abcdefghijklmnopqrst", 19, -19);
+    test("", 0, 1, "abcdefghijklmnopqrst", 20, -20);
+    test("", 1, 0, "", 0, 0);
+    test("", 1, 0, "abcde", 0, 0);
+    test("", 1, 0, "abcde", 1, 0);
+    test("", 1, 0, "abcde", 2, 0);
+    test("", 1, 0, "abcde", 4, 0);
+    test("", 1, 0, "abcde", 5, 0);
+    test("", 1, 0, "abcdefghij", 0, 0);
+    test("", 1, 0, "abcdefghij", 1, 0);
+    test("", 1, 0, "abcdefghij", 5, 0);
+    test("", 1, 0, "abcdefghij", 9, 0);
+    test("", 1, 0, "abcdefghij", 10, 0);
+    test("", 1, 0, "abcdefghijklmnopqrst", 0, 0);
+    test("", 1, 0, "abcdefghijklmnopqrst", 1, 0);
+    test("", 1, 0, "abcdefghijklmnopqrst", 10, 0);
+    test("", 1, 0, "abcdefghijklmnopqrst", 19, 0);
+    test("", 1, 0, "abcdefghijklmnopqrst", 20, 0);
+    test("abcde", 0, 0, "", 0, 0);
+    test("abcde", 0, 0, "abcde", 0, 0);
+    test("abcde", 0, 0, "abcde", 1, -1);
+    test("abcde", 0, 0, "abcde", 2, -2);
+    test("abcde", 0, 0, "abcde", 4, -4);
+    test("abcde", 0, 0, "abcde", 5, -5);
+    test("abcde", 0, 0, "abcdefghij", 0, 0);
+    test("abcde", 0, 0, "abcdefghij", 1, -1);
+    test("abcde", 0, 0, "abcdefghij", 5, -5);
+    test("abcde", 0, 0, "abcdefghij", 9, -9);
+    test("abcde", 0, 0, "abcdefghij", 10, -10);
+    test("abcde", 0, 0, "abcdefghijklmnopqrst", 0, 0);
+    test("abcde", 0, 0, "abcdefghijklmnopqrst", 1, -1);
+    test("abcde", 0, 0, "abcdefghijklmnopqrst", 10, -10);
+    test("abcde", 0, 0, "abcdefghijklmnopqrst", 19, -19);
+    test("abcde", 0, 0, "abcdefghijklmnopqrst", 20, -20);
+    test("abcde", 0, 1, "", 0, 1);
+    test("abcde", 0, 1, "abcde", 0, 1);
+    test("abcde", 0, 1, "abcde", 1, 0);
+    test("abcde", 0, 1, "abcde", 2, -1);
+    test("abcde", 0, 1, "abcde", 4, -3);
+    test("abcde", 0, 1, "abcde", 5, -4);
+    test("abcde", 0, 1, "abcdefghij", 0, 1);
+    test("abcde", 0, 1, "abcdefghij", 1, 0);
+    test("abcde", 0, 1, "abcdefghij", 5, -4);
+    test("abcde", 0, 1, "abcdefghij", 9, -8);
+    test("abcde", 0, 1, "abcdefghij", 10, -9);
+    test("abcde", 0, 1, "abcdefghijklmnopqrst", 0, 1);
+    test("abcde", 0, 1, "abcdefghijklmnopqrst", 1, 0);
+    test("abcde", 0, 1, "abcdefghijklmnopqrst", 10, -9);
+    test("abcde", 0, 1, "abcdefghijklmnopqrst", 19, -18);
+    test("abcde", 0, 1, "abcdefghijklmnopqrst", 20, -19);
+    test("abcde", 0, 2, "", 0, 2);
+    test("abcde", 0, 2, "abcde", 0, 2);
+    test("abcde", 0, 2, "abcde", 1, 1);
+    test("abcde", 0, 2, "abcde", 2, 0);
+    test("abcde", 0, 2, "abcde", 4, -2);
+    test("abcde", 0, 2, "abcde", 5, -3);
+    test("abcde", 0, 2, "abcdefghij", 0, 2);
+    test("abcde", 0, 2, "abcdefghij", 1, 1);
+    test("abcde", 0, 2, "abcdefghij", 5, -3);
+    test("abcde", 0, 2, "abcdefghij", 9, -7);
+    test("abcde", 0, 2, "abcdefghij", 10, -8);
+    test("abcde", 0, 2, "abcdefghijklmnopqrst", 0, 2);
+    test("abcde", 0, 2, "abcdefghijklmnopqrst", 1, 1);
+    test("abcde", 0, 2, "abcdefghijklmnopqrst", 10, -8);
+    test("abcde", 0, 2, "abcdefghijklmnopqrst", 19, -17);
+    test("abcde", 0, 2, "abcdefghijklmnopqrst", 20, -18);
+    test("abcde", 0, 4, "", 0, 4);
+    test("abcde", 0, 4, "abcde", 0, 4);
+    test("abcde", 0, 4, "abcde", 1, 3);
+    test("abcde", 0, 4, "abcde", 2, 2);
+}
+
+
+void test1()
+{
+    test("abcde", 0, 4, "abcde", 4, 0);
+    test("abcde", 0, 4, "abcde", 5, -1);
+    test("abcde", 0, 4, "abcdefghij", 0, 4);
+    test("abcde", 0, 4, "abcdefghij", 1, 3);
+    test("abcde", 0, 4, "abcdefghij", 5, -1);
+    test("abcde", 0, 4, "abcdefghij", 9, -5);
+    test("abcde", 0, 4, "abcdefghij", 10, -6);
+    test("abcde", 0, 4, "abcdefghijklmnopqrst", 0, 4);
+    test("abcde", 0, 4, "abcdefghijklmnopqrst", 1, 3);
+    test("abcde", 0, 4, "abcdefghijklmnopqrst", 10, -6);
+    test("abcde", 0, 4, "abcdefghijklmnopqrst", 19, -15);
+    test("abcde", 0, 4, "abcdefghijklmnopqrst", 20, -16);
+    test("abcde", 0, 5, "", 0, 5);
+    test("abcde", 0, 5, "abcde", 0, 5);
+    test("abcde", 0, 5, "abcde", 1, 4);
+    test("abcde", 0, 5, "abcde", 2, 3);
+    test("abcde", 0, 5, "abcde", 4, 1);
+    test("abcde", 0, 5, "abcde", 5, 0);
+    test("abcde", 0, 5, "abcdefghij", 0, 5);
+    test("abcde", 0, 5, "abcdefghij", 1, 4);
+    test("abcde", 0, 5, "abcdefghij", 5, 0);
+    test("abcde", 0, 5, "abcdefghij", 9, -4);
+    test("abcde", 0, 5, "abcdefghij", 10, -5);
+    test("abcde", 0, 5, "abcdefghijklmnopqrst", 0, 5);
+    test("abcde", 0, 5, "abcdefghijklmnopqrst", 1, 4);
+    test("abcde", 0, 5, "abcdefghijklmnopqrst", 10, -5);
+    test("abcde", 0, 5, "abcdefghijklmnopqrst", 19, -14);
+    test("abcde", 0, 5, "abcdefghijklmnopqrst", 20, -15);
+    test("abcde", 0, 6, "", 0, 5);
+    test("abcde", 0, 6, "abcde", 0, 5);
+    test("abcde", 0, 6, "abcde", 1, 4);
+    test("abcde", 0, 6, "abcde", 2, 3);
+    test("abcde", 0, 6, "abcde", 4, 1);
+    test("abcde", 0, 6, "abcde", 5, 0);
+    test("abcde", 0, 6, "abcdefghij", 0, 5);
+    test("abcde", 0, 6, "abcdefghij", 1, 4);
+    test("abcde", 0, 6, "abcdefghij", 5, 0);
+    test("abcde", 0, 6, "abcdefghij", 9, -4);
+    test("abcde", 0, 6, "abcdefghij", 10, -5);
+    test("abcde", 0, 6, "abcdefghijklmnopqrst", 0, 5);
+    test("abcde", 0, 6, "abcdefghijklmnopqrst", 1, 4);
+    test("abcde", 0, 6, "abcdefghijklmnopqrst", 10, -5);
+    test("abcde", 0, 6, "abcdefghijklmnopqrst", 19, -14);
+    test("abcde", 0, 6, "abcdefghijklmnopqrst", 20, -15);
+    test("abcde", 1, 0, "", 0, 0);
+    test("abcde", 1, 0, "abcde", 0, 0);
+    test("abcde", 1, 0, "abcde", 1, -1);
+    test("abcde", 1, 0, "abcde", 2, -2);
+    test("abcde", 1, 0, "abcde", 4, -4);
+    test("abcde", 1, 0, "abcde", 5, -5);
+    test("abcde", 1, 0, "abcdefghij", 0, 0);
+    test("abcde", 1, 0, "abcdefghij", 1, -1);
+    test("abcde", 1, 0, "abcdefghij", 5, -5);
+    test("abcde", 1, 0, "abcdefghij", 9, -9);
+    test("abcde", 1, 0, "abcdefghij", 10, -10);
+    test("abcde", 1, 0, "abcdefghijklmnopqrst", 0, 0);
+    test("abcde", 1, 0, "abcdefghijklmnopqrst", 1, -1);
+    test("abcde", 1, 0, "abcdefghijklmnopqrst", 10, -10);
+    test("abcde", 1, 0, "abcdefghijklmnopqrst", 19, -19);
+    test("abcde", 1, 0, "abcdefghijklmnopqrst", 20, -20);
+    test("abcde", 1, 1, "", 0, 1);
+    test("abcde", 1, 1, "abcde", 0, 1);
+    test("abcde", 1, 1, "abcde", 1, 1);
+    test("abcde", 1, 1, "abcde", 2, 1);
+    test("abcde", 1, 1, "abcde", 4, 1);
+    test("abcde", 1, 1, "abcde", 5, 1);
+    test("abcde", 1, 1, "abcdefghij", 0, 1);
+    test("abcde", 1, 1, "abcdefghij", 1, 1);
+    test("abcde", 1, 1, "abcdefghij", 5, 1);
+    test("abcde", 1, 1, "abcdefghij", 9, 1);
+    test("abcde", 1, 1, "abcdefghij", 10, 1);
+    test("abcde", 1, 1, "abcdefghijklmnopqrst", 0, 1);
+    test("abcde", 1, 1, "abcdefghijklmnopqrst", 1, 1);
+    test("abcde", 1, 1, "abcdefghijklmnopqrst", 10, 1);
+    test("abcde", 1, 1, "abcdefghijklmnopqrst", 19, 1);
+    test("abcde", 1, 1, "abcdefghijklmnopqrst", 20, 1);
+    test("abcde", 1, 2, "", 0, 2);
+    test("abcde", 1, 2, "abcde", 0, 2);
+    test("abcde", 1, 2, "abcde", 1, 1);
+    test("abcde", 1, 2, "abcde", 2, 1);
+    test("abcde", 1, 2, "abcde", 4, 1);
+    test("abcde", 1, 2, "abcde", 5, 1);
+    test("abcde", 1, 2, "abcdefghij", 0, 2);
+    test("abcde", 1, 2, "abcdefghij", 1, 1);
+    test("abcde", 1, 2, "abcdefghij", 5, 1);
+    test("abcde", 1, 2, "abcdefghij", 9, 1);
+    test("abcde", 1, 2, "abcdefghij", 10, 1);
+    test("abcde", 1, 2, "abcdefghijklmnopqrst", 0, 2);
+    test("abcde", 1, 2, "abcdefghijklmnopqrst", 1, 1);
+    test("abcde", 1, 2, "abcdefghijklmnopqrst", 10, 1);
+    test("abcde", 1, 2, "abcdefghijklmnopqrst", 19, 1);
+    test("abcde", 1, 2, "abcdefghijklmnopqrst", 20, 1);
+    test("abcde", 1, 3, "", 0, 3);
+    test("abcde", 1, 3, "abcde", 0, 3);
+    test("abcde", 1, 3, "abcde", 1, 1);
+    test("abcde", 1, 3, "abcde", 2, 1);
+    test("abcde", 1, 3, "abcde", 4, 1);
+    test("abcde", 1, 3, "abcde", 5, 1);
+    test("abcde", 1, 3, "abcdefghij", 0, 3);
+    test("abcde", 1, 3, "abcdefghij", 1, 1);
+}
+
+
+void test2()
+{
+    test("abcde", 1, 3, "abcdefghij", 5, 1);
+    test("abcde", 1, 3, "abcdefghij", 9, 1);
+    test("abcde", 1, 3, "abcdefghij", 10, 1);
+    test("abcde", 1, 3, "abcdefghijklmnopqrst", 0, 3);
+    test("abcde", 1, 3, "abcdefghijklmnopqrst", 1, 1);
+    test("abcde", 1, 3, "abcdefghijklmnopqrst", 10, 1);
+    test("abcde", 1, 3, "abcdefghijklmnopqrst", 19, 1);
+    test("abcde", 1, 3, "abcdefghijklmnopqrst", 20, 1);
+    test("abcde", 1, 4, "", 0, 4);
+    test("abcde", 1, 4, "abcde", 0, 4);
+    test("abcde", 1, 4, "abcde", 1, 1);
+    test("abcde", 1, 4, "abcde", 2, 1);
+    test("abcde", 1, 4, "abcde", 4, 1);
+    test("abcde", 1, 4, "abcde", 5, 1);
+    test("abcde", 1, 4, "abcdefghij", 0, 4);
+    test("abcde", 1, 4, "abcdefghij", 1, 1);
+    test("abcde", 1, 4, "abcdefghij", 5, 1);
+    test("abcde", 1, 4, "abcdefghij", 9, 1);
+    test("abcde", 1, 4, "abcdefghij", 10, 1);
+    test("abcde", 1, 4, "abcdefghijklmnopqrst", 0, 4);
+    test("abcde", 1, 4, "abcdefghijklmnopqrst", 1, 1);
+    test("abcde", 1, 4, "abcdefghijklmnopqrst", 10, 1);
+    test("abcde", 1, 4, "abcdefghijklmnopqrst", 19, 1);
+    test("abcde", 1, 4, "abcdefghijklmnopqrst", 20, 1);
+    test("abcde", 1, 5, "", 0, 4);
+    test("abcde", 1, 5, "abcde", 0, 4);
+    test("abcde", 1, 5, "abcde", 1, 1);
+    test("abcde", 1, 5, "abcde", 2, 1);
+    test("abcde", 1, 5, "abcde", 4, 1);
+    test("abcde", 1, 5, "abcde", 5, 1);
+    test("abcde", 1, 5, "abcdefghij", 0, 4);
+    test("abcde", 1, 5, "abcdefghij", 1, 1);
+    test("abcde", 1, 5, "abcdefghij", 5, 1);
+    test("abcde", 1, 5, "abcdefghij", 9, 1);
+    test("abcde", 1, 5, "abcdefghij", 10, 1);
+    test("abcde", 1, 5, "abcdefghijklmnopqrst", 0, 4);
+    test("abcde", 1, 5, "abcdefghijklmnopqrst", 1, 1);
+    test("abcde", 1, 5, "abcdefghijklmnopqrst", 10, 1);
+    test("abcde", 1, 5, "abcdefghijklmnopqrst", 19, 1);
+    test("abcde", 1, 5, "abcdefghijklmnopqrst", 20, 1);
+    test("abcde", 2, 0, "", 0, 0);
+    test("abcde", 2, 0, "abcde", 0, 0);
+    test("abcde", 2, 0, "abcde", 1, -1);
+    test("abcde", 2, 0, "abcde", 2, -2);
+    test("abcde", 2, 0, "abcde", 4, -4);
+    test("abcde", 2, 0, "abcde", 5, -5);
+    test("abcde", 2, 0, "abcdefghij", 0, 0);
+    test("abcde", 2, 0, "abcdefghij", 1, -1);
+    test("abcde", 2, 0, "abcdefghij", 5, -5);
+    test("abcde", 2, 0, "abcdefghij", 9, -9);
+    test("abcde", 2, 0, "abcdefghij", 10, -10);
+    test("abcde", 2, 0, "abcdefghijklmnopqrst", 0, 0);
+    test("abcde", 2, 0, "abcdefghijklmnopqrst", 1, -1);
+    test("abcde", 2, 0, "abcdefghijklmnopqrst", 10, -10);
+    test("abcde", 2, 0, "abcdefghijklmnopqrst", 19, -19);
+    test("abcde", 2, 0, "abcdefghijklmnopqrst", 20, -20);
+    test("abcde", 2, 1, "", 0, 1);
+    test("abcde", 2, 1, "abcde", 0, 1);
+    test("abcde", 2, 1, "abcde", 1, 2);
+    test("abcde", 2, 1, "abcde", 2, 2);
+    test("abcde", 2, 1, "abcde", 4, 2);
+    test("abcde", 2, 1, "abcde", 5, 2);
+    test("abcde", 2, 1, "abcdefghij", 0, 1);
+    test("abcde", 2, 1, "abcdefghij", 1, 2);
+    test("abcde", 2, 1, "abcdefghij", 5, 2);
+    test("abcde", 2, 1, "abcdefghij", 9, 2);
+    test("abcde", 2, 1, "abcdefghij", 10, 2);
+    test("abcde", 2, 1, "abcdefghijklmnopqrst", 0, 1);
+    test("abcde", 2, 1, "abcdefghijklmnopqrst", 1, 2);
+    test("abcde", 2, 1, "abcdefghijklmnopqrst", 10, 2);
+    test("abcde", 2, 1, "abcdefghijklmnopqrst", 19, 2);
+    test("abcde", 2, 1, "abcdefghijklmnopqrst", 20, 2);
+    test("abcde", 2, 2, "", 0, 2);
+    test("abcde", 2, 2, "abcde", 0, 2);
+    test("abcde", 2, 2, "abcde", 1, 2);
+    test("abcde", 2, 2, "abcde", 2, 2);
+    test("abcde", 2, 2, "abcde", 4, 2);
+    test("abcde", 2, 2, "abcde", 5, 2);
+    test("abcde", 2, 2, "abcdefghij", 0, 2);
+    test("abcde", 2, 2, "abcdefghij", 1, 2);
+    test("abcde", 2, 2, "abcdefghij", 5, 2);
+    test("abcde", 2, 2, "abcdefghij", 9, 2);
+    test("abcde", 2, 2, "abcdefghij", 10, 2);
+    test("abcde", 2, 2, "abcdefghijklmnopqrst", 0, 2);
+    test("abcde", 2, 2, "abcdefghijklmnopqrst", 1, 2);
+    test("abcde", 2, 2, "abcdefghijklmnopqrst", 10, 2);
+    test("abcde", 2, 2, "abcdefghijklmnopqrst", 19, 2);
+    test("abcde", 2, 2, "abcdefghijklmnopqrst", 20, 2);
+    test("abcde", 2, 3, "", 0, 3);
+    test("abcde", 2, 3, "abcde", 0, 3);
+    test("abcde", 2, 3, "abcde", 1, 2);
+    test("abcde", 2, 3, "abcde", 2, 2);
+    test("abcde", 2, 3, "abcde", 4, 2);
+    test("abcde", 2, 3, "abcde", 5, 2);
+    test("abcde", 2, 3, "abcdefghij", 0, 3);
+    test("abcde", 2, 3, "abcdefghij", 1, 2);
+    test("abcde", 2, 3, "abcdefghij", 5, 2);
+    test("abcde", 2, 3, "abcdefghij", 9, 2);
+    test("abcde", 2, 3, "abcdefghij", 10, 2);
+    test("abcde", 2, 3, "abcdefghijklmnopqrst", 0, 3);
+}
+
+
+void test3()
+{
+    test("abcde", 2, 3, "abcdefghijklmnopqrst", 1, 2);
+    test("abcde", 2, 3, "abcdefghijklmnopqrst", 10, 2);
+    test("abcde", 2, 3, "abcdefghijklmnopqrst", 19, 2);
+    test("abcde", 2, 3, "abcdefghijklmnopqrst", 20, 2);
+    test("abcde", 2, 4, "", 0, 3);
+    test("abcde", 2, 4, "abcde", 0, 3);
+    test("abcde", 2, 4, "abcde", 1, 2);
+    test("abcde", 2, 4, "abcde", 2, 2);
+    test("abcde", 2, 4, "abcde", 4, 2);
+    test("abcde", 2, 4, "abcde", 5, 2);
+    test("abcde", 2, 4, "abcdefghij", 0, 3);
+    test("abcde", 2, 4, "abcdefghij", 1, 2);
+    test("abcde", 2, 4, "abcdefghij", 5, 2);
+    test("abcde", 2, 4, "abcdefghij", 9, 2);
+    test("abcde", 2, 4, "abcdefghij", 10, 2);
+    test("abcde", 2, 4, "abcdefghijklmnopqrst", 0, 3);
+    test("abcde", 2, 4, "abcdefghijklmnopqrst", 1, 2);
+    test("abcde", 2, 4, "abcdefghijklmnopqrst", 10, 2);
+    test("abcde", 2, 4, "abcdefghijklmnopqrst", 19, 2);
+    test("abcde", 2, 4, "abcdefghijklmnopqrst", 20, 2);
+    test("abcde", 4, 0, "", 0, 0);
+    test("abcde", 4, 0, "abcde", 0, 0);
+    test("abcde", 4, 0, "abcde", 1, -1);
+    test("abcde", 4, 0, "abcde", 2, -2);
+    test("abcde", 4, 0, "abcde", 4, -4);
+    test("abcde", 4, 0, "abcde", 5, -5);
+    test("abcde", 4, 0, "abcdefghij", 0, 0);
+    test("abcde", 4, 0, "abcdefghij", 1, -1);
+    test("abcde", 4, 0, "abcdefghij", 5, -5);
+    test("abcde", 4, 0, "abcdefghij", 9, -9);
+    test("abcde", 4, 0, "abcdefghij", 10, -10);
+    test("abcde", 4, 0, "abcdefghijklmnopqrst", 0, 0);
+    test("abcde", 4, 0, "abcdefghijklmnopqrst", 1, -1);
+    test("abcde", 4, 0, "abcdefghijklmnopqrst", 10, -10);
+    test("abcde", 4, 0, "abcdefghijklmnopqrst", 19, -19);
+    test("abcde", 4, 0, "abcdefghijklmnopqrst", 20, -20);
+    test("abcde", 4, 1, "", 0, 1);
+    test("abcde", 4, 1, "abcde", 0, 1);
+    test("abcde", 4, 1, "abcde", 1, 4);
+    test("abcde", 4, 1, "abcde", 2, 4);
+    test("abcde", 4, 1, "abcde", 4, 4);
+    test("abcde", 4, 1, "abcde", 5, 4);
+    test("abcde", 4, 1, "abcdefghij", 0, 1);
+    test("abcde", 4, 1, "abcdefghij", 1, 4);
+    test("abcde", 4, 1, "abcdefghij", 5, 4);
+    test("abcde", 4, 1, "abcdefghij", 9, 4);
+    test("abcde", 4, 1, "abcdefghij", 10, 4);
+    test("abcde", 4, 1, "abcdefghijklmnopqrst", 0, 1);
+    test("abcde", 4, 1, "abcdefghijklmnopqrst", 1, 4);
+    test("abcde", 4, 1, "abcdefghijklmnopqrst", 10, 4);
+    test("abcde", 4, 1, "abcdefghijklmnopqrst", 19, 4);
+    test("abcde", 4, 1, "abcdefghijklmnopqrst", 20, 4);
+    test("abcde", 4, 2, "", 0, 1);
+    test("abcde", 4, 2, "abcde", 0, 1);
+    test("abcde", 4, 2, "abcde", 1, 4);
+    test("abcde", 4, 2, "abcde", 2, 4);
+    test("abcde", 4, 2, "abcde", 4, 4);
+    test("abcde", 4, 2, "abcde", 5, 4);
+    test("abcde", 4, 2, "abcdefghij", 0, 1);
+    test("abcde", 4, 2, "abcdefghij", 1, 4);
+    test("abcde", 4, 2, "abcdefghij", 5, 4);
+    test("abcde", 4, 2, "abcdefghij", 9, 4);
+    test("abcde", 4, 2, "abcdefghij", 10, 4);
+    test("abcde", 4, 2, "abcdefghijklmnopqrst", 0, 1);
+    test("abcde", 4, 2, "abcdefghijklmnopqrst", 1, 4);
+    test("abcde", 4, 2, "abcdefghijklmnopqrst", 10, 4);
+    test("abcde", 4, 2, "abcdefghijklmnopqrst", 19, 4);
+    test("abcde", 4, 2, "abcdefghijklmnopqrst", 20, 4);
+    test("abcde", 5, 0, "", 0, 0);
+    test("abcde", 5, 0, "abcde", 0, 0);
+    test("abcde", 5, 0, "abcde", 1, -1);
+    test("abcde", 5, 0, "abcde", 2, -2);
+    test("abcde", 5, 0, "abcde", 4, -4);
+    test("abcde", 5, 0, "abcde", 5, -5);
+    test("abcde", 5, 0, "abcdefghij", 0, 0);
+    test("abcde", 5, 0, "abcdefghij", 1, -1);
+    test("abcde", 5, 0, "abcdefghij", 5, -5);
+    test("abcde", 5, 0, "abcdefghij", 9, -9);
+    test("abcde", 5, 0, "abcdefghij", 10, -10);
+    test("abcde", 5, 0, "abcdefghijklmnopqrst", 0, 0);
+    test("abcde", 5, 0, "abcdefghijklmnopqrst", 1, -1);
+    test("abcde", 5, 0, "abcdefghijklmnopqrst", 10, -10);
+    test("abcde", 5, 0, "abcdefghijklmnopqrst", 19, -19);
+    test("abcde", 5, 0, "abcdefghijklmnopqrst", 20, -20);
+    test("abcde", 5, 1, "", 0, 0);
+    test("abcde", 5, 1, "abcde", 0, 0);
+    test("abcde", 5, 1, "abcde", 1, -1);
+    test("abcde", 5, 1, "abcde", 2, -2);
+    test("abcde", 5, 1, "abcde", 4, -4);
+    test("abcde", 5, 1, "abcde", 5, -5);
+    test("abcde", 5, 1, "abcdefghij", 0, 0);
+    test("abcde", 5, 1, "abcdefghij", 1, -1);
+    test("abcde", 5, 1, "abcdefghij", 5, -5);
+    test("abcde", 5, 1, "abcdefghij", 9, -9);
+    test("abcde", 5, 1, "abcdefghij", 10, -10);
+    test("abcde", 5, 1, "abcdefghijklmnopqrst", 0, 0);
+    test("abcde", 5, 1, "abcdefghijklmnopqrst", 1, -1);
+    test("abcde", 5, 1, "abcdefghijklmnopqrst", 10, -10);
+    test("abcde", 5, 1, "abcdefghijklmnopqrst", 19, -19);
+    test("abcde", 5, 1, "abcdefghijklmnopqrst", 20, -20);
+}
+
+
+void test4()
+{
+    test("abcde", 6, 0, "", 0, 0);
+    test("abcde", 6, 0, "abcde", 0, 0);
+    test("abcde", 6, 0, "abcde", 1, 0);
+    test("abcde", 6, 0, "abcde", 2, 0);
+    test("abcde", 6, 0, "abcde", 4, 0);
+    test("abcde", 6, 0, "abcde", 5, 0);
+    test("abcde", 6, 0, "abcdefghij", 0, 0);
+    test("abcde", 6, 0, "abcdefghij", 1, 0);
+    test("abcde", 6, 0, "abcdefghij", 5, 0);
+    test("abcde", 6, 0, "abcdefghij", 9, 0);
+    test("abcde", 6, 0, "abcdefghij", 10, 0);
+    test("abcde", 6, 0, "abcdefghijklmnopqrst", 0, 0);
+    test("abcde", 6, 0, "abcdefghijklmnopqrst", 1, 0);
+    test("abcde", 6, 0, "abcdefghijklmnopqrst", 10, 0);
+    test("abcde", 6, 0, "abcdefghijklmnopqrst", 19, 0);
+    test("abcde", 6, 0, "abcdefghijklmnopqrst", 20, 0);
+    test("abcdefghij", 0, 0, "", 0, 0);
+    test("abcdefghij", 0, 0, "abcde", 0, 0);
+    test("abcdefghij", 0, 0, "abcde", 1, -1);
+    test("abcdefghij", 0, 0, "abcde", 2, -2);
+    test("abcdefghij", 0, 0, "abcde", 4, -4);
+    test("abcdefghij", 0, 0, "abcde", 5, -5);
+    test("abcdefghij", 0, 0, "abcdefghij", 0, 0);
+    test("abcdefghij", 0, 0, "abcdefghij", 1, -1);
+    test("abcdefghij", 0, 0, "abcdefghij", 5, -5);
+    test("abcdefghij", 0, 0, "abcdefghij", 9, -9);
+    test("abcdefghij", 0, 0, "abcdefghij", 10, -10);
+    test("abcdefghij", 0, 0, "abcdefghijklmnopqrst", 0, 0);
+    test("abcdefghij", 0, 0, "abcdefghijklmnopqrst", 1, -1);
+    test("abcdefghij", 0, 0, "abcdefghijklmnopqrst", 10, -10);
+    test("abcdefghij", 0, 0, "abcdefghijklmnopqrst", 19, -19);
+    test("abcdefghij", 0, 0, "abcdefghijklmnopqrst", 20, -20);
+    test("abcdefghij", 0, 1, "", 0, 1);
+    test("abcdefghij", 0, 1, "abcde", 0, 1);
+    test("abcdefghij", 0, 1, "abcde", 1, 0);
+    test("abcdefghij", 0, 1, "abcde", 2, -1);
+    test("abcdefghij", 0, 1, "abcde", 4, -3);
+    test("abcdefghij", 0, 1, "abcde", 5, -4);
+    test("abcdefghij", 0, 1, "abcdefghij", 0, 1);
+    test("abcdefghij", 0, 1, "abcdefghij", 1, 0);
+    test("abcdefghij", 0, 1, "abcdefghij", 5, -4);
+    test("abcdefghij", 0, 1, "abcdefghij", 9, -8);
+    test("abcdefghij", 0, 1, "abcdefghij", 10, -9);
+    test("abcdefghij", 0, 1, "abcdefghijklmnopqrst", 0, 1);
+    test("abcdefghij", 0, 1, "abcdefghijklmnopqrst", 1, 0);
+    test("abcdefghij", 0, 1, "abcdefghijklmnopqrst", 10, -9);
+    test("abcdefghij", 0, 1, "abcdefghijklmnopqrst", 19, -18);
+    test("abcdefghij", 0, 1, "abcdefghijklmnopqrst", 20, -19);
+    test("abcdefghij", 0, 5, "", 0, 5);
+    test("abcdefghij", 0, 5, "abcde", 0, 5);
+    test("abcdefghij", 0, 5, "abcde", 1, 4);
+    test("abcdefghij", 0, 5, "abcde", 2, 3);
+    test("abcdefghij", 0, 5, "abcde", 4, 1);
+    test("abcdefghij", 0, 5, "abcde", 5, 0);
+    test("abcdefghij", 0, 5, "abcdefghij", 0, 5);
+    test("abcdefghij", 0, 5, "abcdefghij", 1, 4);
+    test("abcdefghij", 0, 5, "abcdefghij", 5, 0);
+    test("abcdefghij", 0, 5, "abcdefghij", 9, -4);
+    test("abcdefghij", 0, 5, "abcdefghij", 10, -5);
+    test("abcdefghij", 0, 5, "abcdefghijklmnopqrst", 0, 5);
+    test("abcdefghij", 0, 5, "abcdefghijklmnopqrst", 1, 4);
+    test("abcdefghij", 0, 5, "abcdefghijklmnopqrst", 10, -5);
+    test("abcdefghij", 0, 5, "abcdefghijklmnopqrst", 19, -14);
+    test("abcdefghij", 0, 5, "abcdefghijklmnopqrst", 20, -15);
+    test("abcdefghij", 0, 9, "", 0, 9);
+    test("abcdefghij", 0, 9, "abcde", 0, 9);
+    test("abcdefghij", 0, 9, "abcde", 1, 8);
+    test("abcdefghij", 0, 9, "abcde", 2, 7);
+    test("abcdefghij", 0, 9, "abcde", 4, 5);
+    test("abcdefghij", 0, 9, "abcde", 5, 4);
+    test("abcdefghij", 0, 9, "abcdefghij", 0, 9);
+    test("abcdefghij", 0, 9, "abcdefghij", 1, 8);
+    test("abcdefghij", 0, 9, "abcdefghij", 5, 4);
+    test("abcdefghij", 0, 9, "abcdefghij", 9, 0);
+    test("abcdefghij", 0, 9, "abcdefghij", 10, -1);
+    test("abcdefghij", 0, 9, "abcdefghijklmnopqrst", 0, 9);
+    test("abcdefghij", 0, 9, "abcdefghijklmnopqrst", 1, 8);
+    test("abcdefghij", 0, 9, "abcdefghijklmnopqrst", 10, -1);
+    test("abcdefghij", 0, 9, "abcdefghijklmnopqrst", 19, -10);
+    test("abcdefghij", 0, 9, "abcdefghijklmnopqrst", 20, -11);
+    test("abcdefghij", 0, 10, "", 0, 10);
+    test("abcdefghij", 0, 10, "abcde", 0, 10);
+    test("abcdefghij", 0, 10, "abcde", 1, 9);
+    test("abcdefghij", 0, 10, "abcde", 2, 8);
+    test("abcdefghij", 0, 10, "abcde", 4, 6);
+    test("abcdefghij", 0, 10, "abcde", 5, 5);
+    test("abcdefghij", 0, 10, "abcdefghij", 0, 10);
+    test("abcdefghij", 0, 10, "abcdefghij", 1, 9);
+    test("abcdefghij", 0, 10, "abcdefghij", 5, 5);
+    test("abcdefghij", 0, 10, "abcdefghij", 9, 1);
+    test("abcdefghij", 0, 10, "abcdefghij", 10, 0);
+    test("abcdefghij", 0, 10, "abcdefghijklmnopqrst", 0, 10);
+    test("abcdefghij", 0, 10, "abcdefghijklmnopqrst", 1, 9);
+    test("abcdefghij", 0, 10, "abcdefghijklmnopqrst", 10, 0);
+    test("abcdefghij", 0, 10, "abcdefghijklmnopqrst", 19, -9);
+    test("abcdefghij", 0, 10, "abcdefghijklmnopqrst", 20, -10);
+    test("abcdefghij", 0, 11, "", 0, 10);
+    test("abcdefghij", 0, 11, "abcde", 0, 10);
+    test("abcdefghij", 0, 11, "abcde", 1, 9);
+    test("abcdefghij", 0, 11, "abcde", 2, 8);
+}
+
+
+void test5()
+{
+    test("abcdefghij", 0, 11, "abcde", 4, 6);
+    test("abcdefghij", 0, 11, "abcde", 5, 5);
+    test("abcdefghij", 0, 11, "abcdefghij", 0, 10);
+    test("abcdefghij", 0, 11, "abcdefghij", 1, 9);
+    test("abcdefghij", 0, 11, "abcdefghij", 5, 5);
+    test("abcdefghij", 0, 11, "abcdefghij", 9, 1);
+    test("abcdefghij", 0, 11, "abcdefghij", 10, 0);
+    test("abcdefghij", 0, 11, "abcdefghijklmnopqrst", 0, 10);
+    test("abcdefghij", 0, 11, "abcdefghijklmnopqrst", 1, 9);
+    test("abcdefghij", 0, 11, "abcdefghijklmnopqrst", 10, 0);
+    test("abcdefghij", 0, 11, "abcdefghijklmnopqrst", 19, -9);
+    test("abcdefghij", 0, 11, "abcdefghijklmnopqrst", 20, -10);
+    test("abcdefghij", 1, 0, "", 0, 0);
+    test("abcdefghij", 1, 0, "abcde", 0, 0);
+    test("abcdefghij", 1, 0, "abcde", 1, -1);
+    test("abcdefghij", 1, 0, "abcde", 2, -2);
+    test("abcdefghij", 1, 0, "abcde", 4, -4);
+    test("abcdefghij", 1, 0, "abcde", 5, -5);
+    test("abcdefghij", 1, 0, "abcdefghij", 0, 0);
+    test("abcdefghij", 1, 0, "abcdefghij", 1, -1);
+    test("abcdefghij", 1, 0, "abcdefghij", 5, -5);
+    test("abcdefghij", 1, 0, "abcdefghij", 9, -9);
+    test("abcdefghij", 1, 0, "abcdefghij", 10, -10);
+    test("abcdefghij", 1, 0, "abcdefghijklmnopqrst", 0, 0);
+    test("abcdefghij", 1, 0, "abcdefghijklmnopqrst", 1, -1);
+    test("abcdefghij", 1, 0, "abcdefghijklmnopqrst", 10, -10);
+    test("abcdefghij", 1, 0, "abcdefghijklmnopqrst", 19, -19);
+    test("abcdefghij", 1, 0, "abcdefghijklmnopqrst", 20, -20);
+    test("abcdefghij", 1, 1, "", 0, 1);
+    test("abcdefghij", 1, 1, "abcde", 0, 1);
+    test("abcdefghij", 1, 1, "abcde", 1, 1);
+    test("abcdefghij", 1, 1, "abcde", 2, 1);
+    test("abcdefghij", 1, 1, "abcde", 4, 1);
+    test("abcdefghij", 1, 1, "abcde", 5, 1);
+    test("abcdefghij", 1, 1, "abcdefghij", 0, 1);
+    test("abcdefghij", 1, 1, "abcdefghij", 1, 1);
+    test("abcdefghij", 1, 1, "abcdefghij", 5, 1);
+    test("abcdefghij", 1, 1, "abcdefghij", 9, 1);
+    test("abcdefghij", 1, 1, "abcdefghij", 10, 1);
+    test("abcdefghij", 1, 1, "abcdefghijklmnopqrst", 0, 1);
+    test("abcdefghij", 1, 1, "abcdefghijklmnopqrst", 1, 1);
+    test("abcdefghij", 1, 1, "abcdefghijklmnopqrst", 10, 1);
+    test("abcdefghij", 1, 1, "abcdefghijklmnopqrst", 19, 1);
+    test("abcdefghij", 1, 1, "abcdefghijklmnopqrst", 20, 1);
+    test("abcdefghij", 1, 4, "", 0, 4);
+    test("abcdefghij", 1, 4, "abcde", 0, 4);
+    test("abcdefghij", 1, 4, "abcde", 1, 1);
+    test("abcdefghij", 1, 4, "abcde", 2, 1);
+    test("abcdefghij", 1, 4, "abcde", 4, 1);
+    test("abcdefghij", 1, 4, "abcde", 5, 1);
+    test("abcdefghij", 1, 4, "abcdefghij", 0, 4);
+    test("abcdefghij", 1, 4, "abcdefghij", 1, 1);
+    test("abcdefghij", 1, 4, "abcdefghij", 5, 1);
+    test("abcdefghij", 1, 4, "abcdefghij", 9, 1);
+    test("abcdefghij", 1, 4, "abcdefghij", 10, 1);
+    test("abcdefghij", 1, 4, "abcdefghijklmnopqrst", 0, 4);
+    test("abcdefghij", 1, 4, "abcdefghijklmnopqrst", 1, 1);
+    test("abcdefghij", 1, 4, "abcdefghijklmnopqrst", 10, 1);
+    test("abcdefghij", 1, 4, "abcdefghijklmnopqrst", 19, 1);
+    test("abcdefghij", 1, 4, "abcdefghijklmnopqrst", 20, 1);
+    test("abcdefghij", 1, 8, "", 0, 8);
+    test("abcdefghij", 1, 8, "abcde", 0, 8);
+    test("abcdefghij", 1, 8, "abcde", 1, 1);
+    test("abcdefghij", 1, 8, "abcde", 2, 1);
+    test("abcdefghij", 1, 8, "abcde", 4, 1);
+    test("abcdefghij", 1, 8, "abcde", 5, 1);
+    test("abcdefghij", 1, 8, "abcdefghij", 0, 8);
+    test("abcdefghij", 1, 8, "abcdefghij", 1, 1);
+    test("abcdefghij", 1, 8, "abcdefghij", 5, 1);
+    test("abcdefghij", 1, 8, "abcdefghij", 9, 1);
+    test("abcdefghij", 1, 8, "abcdefghij", 10, 1);
+    test("abcdefghij", 1, 8, "abcdefghijklmnopqrst", 0, 8);
+    test("abcdefghij", 1, 8, "abcdefghijklmnopqrst", 1, 1);
+    test("abcdefghij", 1, 8, "abcdefghijklmnopqrst", 10, 1);
+    test("abcdefghij", 1, 8, "abcdefghijklmnopqrst", 19, 1);
+    test("abcdefghij", 1, 8, "abcdefghijklmnopqrst", 20, 1);
+    test("abcdefghij", 1, 9, "", 0, 9);
+    test("abcdefghij", 1, 9, "abcde", 0, 9);
+    test("abcdefghij", 1, 9, "abcde", 1, 1);
+    test("abcdefghij", 1, 9, "abcde", 2, 1);
+    test("abcdefghij", 1, 9, "abcde", 4, 1);
+    test("abcdefghij", 1, 9, "abcde", 5, 1);
+    test("abcdefghij", 1, 9, "abcdefghij", 0, 9);
+    test("abcdefghij", 1, 9, "abcdefghij", 1, 1);
+    test("abcdefghij", 1, 9, "abcdefghij", 5, 1);
+    test("abcdefghij", 1, 9, "abcdefghij", 9, 1);
+    test("abcdefghij", 1, 9, "abcdefghij", 10, 1);
+    test("abcdefghij", 1, 9, "abcdefghijklmnopqrst", 0, 9);
+    test("abcdefghij", 1, 9, "abcdefghijklmnopqrst", 1, 1);
+    test("abcdefghij", 1, 9, "abcdefghijklmnopqrst", 10, 1);
+    test("abcdefghij", 1, 9, "abcdefghijklmnopqrst", 19, 1);
+    test("abcdefghij", 1, 9, "abcdefghijklmnopqrst", 20, 1);
+    test("abcdefghij", 1, 10, "", 0, 9);
+    test("abcdefghij", 1, 10, "abcde", 0, 9);
+    test("abcdefghij", 1, 10, "abcde", 1, 1);
+    test("abcdefghij", 1, 10, "abcde", 2, 1);
+    test("abcdefghij", 1, 10, "abcde", 4, 1);
+    test("abcdefghij", 1, 10, "abcde", 5, 1);
+    test("abcdefghij", 1, 10, "abcdefghij", 0, 9);
+    test("abcdefghij", 1, 10, "abcdefghij", 1, 1);
+}
+
+
+void test6()
+{
+    test("abcdefghij", 1, 10, "abcdefghij", 5, 1);
+    test("abcdefghij", 1, 10, "abcdefghij", 9, 1);
+    test("abcdefghij", 1, 10, "abcdefghij", 10, 1);
+    test("abcdefghij", 1, 10, "abcdefghijklmnopqrst", 0, 9);
+    test("abcdefghij", 1, 10, "abcdefghijklmnopqrst", 1, 1);
+    test("abcdefghij", 1, 10, "abcdefghijklmnopqrst", 10, 1);
+    test("abcdefghij", 1, 10, "abcdefghijklmnopqrst", 19, 1);
+    test("abcdefghij", 1, 10, "abcdefghijklmnopqrst", 20, 1);
+    test("abcdefghij", 5, 0, "", 0, 0);
+    test("abcdefghij", 5, 0, "abcde", 0, 0);
+    test("abcdefghij", 5, 0, "abcde", 1, -1);
+    test("abcdefghij", 5, 0, "abcde", 2, -2);
+    test("abcdefghij", 5, 0, "abcde", 4, -4);
+    test("abcdefghij", 5, 0, "abcde", 5, -5);
+    test("abcdefghij", 5, 0, "abcdefghij", 0, 0);
+    test("abcdefghij", 5, 0, "abcdefghij", 1, -1);
+    test("abcdefghij", 5, 0, "abcdefghij", 5, -5);
+    test("abcdefghij", 5, 0, "abcdefghij", 9, -9);
+    test("abcdefghij", 5, 0, "abcdefghij", 10, -10);
+    test("abcdefghij", 5, 0, "abcdefghijklmnopqrst", 0, 0);
+    test("abcdefghij", 5, 0, "abcdefghijklmnopqrst", 1, -1);
+    test("abcdefghij", 5, 0, "abcdefghijklmnopqrst", 10, -10);
+    test("abcdefghij", 5, 0, "abcdefghijklmnopqrst", 19, -19);
+    test("abcdefghij", 5, 0, "abcdefghijklmnopqrst", 20, -20);
+    test("abcdefghij", 5, 1, "", 0, 1);
+    test("abcdefghij", 5, 1, "abcde", 0, 1);
+    test("abcdefghij", 5, 1, "abcde", 1, 5);
+    test("abcdefghij", 5, 1, "abcde", 2, 5);
+    test("abcdefghij", 5, 1, "abcde", 4, 5);
+    test("abcdefghij", 5, 1, "abcde", 5, 5);
+    test("abcdefghij", 5, 1, "abcdefghij", 0, 1);
+    test("abcdefghij", 5, 1, "abcdefghij", 1, 5);
+    test("abcdefghij", 5, 1, "abcdefghij", 5, 5);
+    test("abcdefghij", 5, 1, "abcdefghij", 9, 5);
+    test("abcdefghij", 5, 1, "abcdefghij", 10, 5);
+    test("abcdefghij", 5, 1, "abcdefghijklmnopqrst", 0, 1);
+    test("abcdefghij", 5, 1, "abcdefghijklmnopqrst", 1, 5);
+    test("abcdefghij", 5, 1, "abcdefghijklmnopqrst", 10, 5);
+    test("abcdefghij", 5, 1, "abcdefghijklmnopqrst", 19, 5);
+    test("abcdefghij", 5, 1, "abcdefghijklmnopqrst", 20, 5);
+    test("abcdefghij", 5, 2, "", 0, 2);
+    test("abcdefghij", 5, 2, "abcde", 0, 2);
+    test("abcdefghij", 5, 2, "abcde", 1, 5);
+    test("abcdefghij", 5, 2, "abcde", 2, 5);
+    test("abcdefghij", 5, 2, "abcde", 4, 5);
+    test("abcdefghij", 5, 2, "abcde", 5, 5);
+    test("abcdefghij", 5, 2, "abcdefghij", 0, 2);
+    test("abcdefghij", 5, 2, "abcdefghij", 1, 5);
+    test("abcdefghij", 5, 2, "abcdefghij", 5, 5);
+    test("abcdefghij", 5, 2, "abcdefghij", 9, 5);
+    test("abcdefghij", 5, 2, "abcdefghij", 10, 5);
+    test("abcdefghij", 5, 2, "abcdefghijklmnopqrst", 0, 2);
+    test("abcdefghij", 5, 2, "abcdefghijklmnopqrst", 1, 5);
+    test("abcdefghij", 5, 2, "abcdefghijklmnopqrst", 10, 5);
+    test("abcdefghij", 5, 2, "abcdefghijklmnopqrst", 19, 5);
+    test("abcdefghij", 5, 2, "abcdefghijklmnopqrst", 20, 5);
+    test("abcdefghij", 5, 4, "", 0, 4);
+    test("abcdefghij", 5, 4, "abcde", 0, 4);
+    test("abcdefghij", 5, 4, "abcde", 1, 5);
+    test("abcdefghij", 5, 4, "abcde", 2, 5);
+    test("abcdefghij", 5, 4, "abcde", 4, 5);
+    test("abcdefghij", 5, 4, "abcde", 5, 5);
+    test("abcdefghij", 5, 4, "abcdefghij", 0, 4);
+    test("abcdefghij", 5, 4, "abcdefghij", 1, 5);
+    test("abcdefghij", 5, 4, "abcdefghij", 5, 5);
+    test("abcdefghij", 5, 4, "abcdefghij", 9, 5);
+    test("abcdefghij", 5, 4, "abcdefghij", 10, 5);
+    test("abcdefghij", 5, 4, "abcdefghijklmnopqrst", 0, 4);
+    test("abcdefghij", 5, 4, "abcdefghijklmnopqrst", 1, 5);
+    test("abcdefghij", 5, 4, "abcdefghijklmnopqrst", 10, 5);
+    test("abcdefghij", 5, 4, "abcdefghijklmnopqrst", 19, 5);
+    test("abcdefghij", 5, 4, "abcdefghijklmnopqrst", 20, 5);
+    test("abcdefghij", 5, 5, "", 0, 5);
+    test("abcdefghij", 5, 5, "abcde", 0, 5);
+    test("abcdefghij", 5, 5, "abcde", 1, 5);
+    test("abcdefghij", 5, 5, "abcde", 2, 5);
+    test("abcdefghij", 5, 5, "abcde", 4, 5);
+    test("abcdefghij", 5, 5, "abcde", 5, 5);
+    test("abcdefghij", 5, 5, "abcdefghij", 0, 5);
+    test("abcdefghij", 5, 5, "abcdefghij", 1, 5);
+    test("abcdefghij", 5, 5, "abcdefghij", 5, 5);
+    test("abcdefghij", 5, 5, "abcdefghij", 9, 5);
+    test("abcdefghij", 5, 5, "abcdefghij", 10, 5);
+    test("abcdefghij", 5, 5, "abcdefghijklmnopqrst", 0, 5);
+    test("abcdefghij", 5, 5, "abcdefghijklmnopqrst", 1, 5);
+    test("abcdefghij", 5, 5, "abcdefghijklmnopqrst", 10, 5);
+    test("abcdefghij", 5, 5, "abcdefghijklmnopqrst", 19, 5);
+    test("abcdefghij", 5, 5, "abcdefghijklmnopqrst", 20, 5);
+    test("abcdefghij", 5, 6, "", 0, 5);
+    test("abcdefghij", 5, 6, "abcde", 0, 5);
+    test("abcdefghij", 5, 6, "abcde", 1, 5);
+    test("abcdefghij", 5, 6, "abcde", 2, 5);
+    test("abcdefghij", 5, 6, "abcde", 4, 5);
+    test("abcdefghij", 5, 6, "abcde", 5, 5);
+    test("abcdefghij", 5, 6, "abcdefghij", 0, 5);
+    test("abcdefghij", 5, 6, "abcdefghij", 1, 5);
+    test("abcdefghij", 5, 6, "abcdefghij", 5, 5);
+    test("abcdefghij", 5, 6, "abcdefghij", 9, 5);
+    test("abcdefghij", 5, 6, "abcdefghij", 10, 5);
+    test("abcdefghij", 5, 6, "abcdefghijklmnopqrst", 0, 5);
+}
+
+
+void test7()
+{
+    test("abcdefghij", 5, 6, "abcdefghijklmnopqrst", 1, 5);
+    test("abcdefghij", 5, 6, "abcdefghijklmnopqrst", 10, 5);
+    test("abcdefghij", 5, 6, "abcdefghijklmnopqrst", 19, 5);
+    test("abcdefghij", 5, 6, "abcdefghijklmnopqrst", 20, 5);
+    test("abcdefghij", 9, 0, "", 0, 0);
+    test("abcdefghij", 9, 0, "abcde", 0, 0);
+    test("abcdefghij", 9, 0, "abcde", 1, -1);
+    test("abcdefghij", 9, 0, "abcde", 2, -2);
+    test("abcdefghij", 9, 0, "abcde", 4, -4);
+    test("abcdefghij", 9, 0, "abcde", 5, -5);
+    test("abcdefghij", 9, 0, "abcdefghij", 0, 0);
+    test("abcdefghij", 9, 0, "abcdefghij", 1, -1);
+    test("abcdefghij", 9, 0, "abcdefghij", 5, -5);
+    test("abcdefghij", 9, 0, "abcdefghij", 9, -9);
+    test("abcdefghij", 9, 0, "abcdefghij", 10, -10);
+    test("abcdefghij", 9, 0, "abcdefghijklmnopqrst", 0, 0);
+    test("abcdefghij", 9, 0, "abcdefghijklmnopqrst", 1, -1);
+    test("abcdefghij", 9, 0, "abcdefghijklmnopqrst", 10, -10);
+    test("abcdefghij", 9, 0, "abcdefghijklmnopqrst", 19, -19);
+    test("abcdefghij", 9, 0, "abcdefghijklmnopqrst", 20, -20);
+    test("abcdefghij", 9, 1, "", 0, 1);
+    test("abcdefghij", 9, 1, "abcde", 0, 1);
+    test("abcdefghij", 9, 1, "abcde", 1, 9);
+    test("abcdefghij", 9, 1, "abcde", 2, 9);
+    test("abcdefghij", 9, 1, "abcde", 4, 9);
+    test("abcdefghij", 9, 1, "abcde", 5, 9);
+    test("abcdefghij", 9, 1, "abcdefghij", 0, 1);
+    test("abcdefghij", 9, 1, "abcdefghij", 1, 9);
+    test("abcdefghij", 9, 1, "abcdefghij", 5, 9);
+    test("abcdefghij", 9, 1, "abcdefghij", 9, 9);
+    test("abcdefghij", 9, 1, "abcdefghij", 10, 9);
+    test("abcdefghij", 9, 1, "abcdefghijklmnopqrst", 0, 1);
+    test("abcdefghij", 9, 1, "abcdefghijklmnopqrst", 1, 9);
+    test("abcdefghij", 9, 1, "abcdefghijklmnopqrst", 10, 9);
+    test("abcdefghij", 9, 1, "abcdefghijklmnopqrst", 19, 9);
+    test("abcdefghij", 9, 1, "abcdefghijklmnopqrst", 20, 9);
+    test("abcdefghij", 9, 2, "", 0, 1);
+    test("abcdefghij", 9, 2, "abcde", 0, 1);
+    test("abcdefghij", 9, 2, "abcde", 1, 9);
+    test("abcdefghij", 9, 2, "abcde", 2, 9);
+    test("abcdefghij", 9, 2, "abcde", 4, 9);
+    test("abcdefghij", 9, 2, "abcde", 5, 9);
+    test("abcdefghij", 9, 2, "abcdefghij", 0, 1);
+    test("abcdefghij", 9, 2, "abcdefghij", 1, 9);
+    test("abcdefghij", 9, 2, "abcdefghij", 5, 9);
+    test("abcdefghij", 9, 2, "abcdefghij", 9, 9);
+    test("abcdefghij", 9, 2, "abcdefghij", 10, 9);
+    test("abcdefghij", 9, 2, "abcdefghijklmnopqrst", 0, 1);
+    test("abcdefghij", 9, 2, "abcdefghijklmnopqrst", 1, 9);
+    test("abcdefghij", 9, 2, "abcdefghijklmnopqrst", 10, 9);
+    test("abcdefghij", 9, 2, "abcdefghijklmnopqrst", 19, 9);
+    test("abcdefghij", 9, 2, "abcdefghijklmnopqrst", 20, 9);
+    test("abcdefghij", 10, 0, "", 0, 0);
+    test("abcdefghij", 10, 0, "abcde", 0, 0);
+    test("abcdefghij", 10, 0, "abcde", 1, -1);
+    test("abcdefghij", 10, 0, "abcde", 2, -2);
+    test("abcdefghij", 10, 0, "abcde", 4, -4);
+    test("abcdefghij", 10, 0, "abcde", 5, -5);
+    test("abcdefghij", 10, 0, "abcdefghij", 0, 0);
+    test("abcdefghij", 10, 0, "abcdefghij", 1, -1);
+    test("abcdefghij", 10, 0, "abcdefghij", 5, -5);
+    test("abcdefghij", 10, 0, "abcdefghij", 9, -9);
+    test("abcdefghij", 10, 0, "abcdefghij", 10, -10);
+    test("abcdefghij", 10, 0, "abcdefghijklmnopqrst", 0, 0);
+    test("abcdefghij", 10, 0, "abcdefghijklmnopqrst", 1, -1);
+    test("abcdefghij", 10, 0, "abcdefghijklmnopqrst", 10, -10);
+    test("abcdefghij", 10, 0, "abcdefghijklmnopqrst", 19, -19);
+    test("abcdefghij", 10, 0, "abcdefghijklmnopqrst", 20, -20);
+    test("abcdefghij", 10, 1, "", 0, 0);
+    test("abcdefghij", 10, 1, "abcde", 0, 0);
+    test("abcdefghij", 10, 1, "abcde", 1, -1);
+    test("abcdefghij", 10, 1, "abcde", 2, -2);
+    test("abcdefghij", 10, 1, "abcde", 4, -4);
+    test("abcdefghij", 10, 1, "abcde", 5, -5);
+    test("abcdefghij", 10, 1, "abcdefghij", 0, 0);
+    test("abcdefghij", 10, 1, "abcdefghij", 1, -1);
+    test("abcdefghij", 10, 1, "abcdefghij", 5, -5);
+    test("abcdefghij", 10, 1, "abcdefghij", 9, -9);
+    test("abcdefghij", 10, 1, "abcdefghij", 10, -10);
+    test("abcdefghij", 10, 1, "abcdefghijklmnopqrst", 0, 0);
+    test("abcdefghij", 10, 1, "abcdefghijklmnopqrst", 1, -1);
+    test("abcdefghij", 10, 1, "abcdefghijklmnopqrst", 10, -10);
+    test("abcdefghij", 10, 1, "abcdefghijklmnopqrst", 19, -19);
+    test("abcdefghij", 10, 1, "abcdefghijklmnopqrst", 20, -20);
+    test("abcdefghij", 11, 0, "", 0, 0);
+    test("abcdefghij", 11, 0, "abcde", 0, 0);
+    test("abcdefghij", 11, 0, "abcde", 1, 0);
+    test("abcdefghij", 11, 0, "abcde", 2, 0);
+    test("abcdefghij", 11, 0, "abcde", 4, 0);
+    test("abcdefghij", 11, 0, "abcde", 5, 0);
+    test("abcdefghij", 11, 0, "abcdefghij", 0, 0);
+    test("abcdefghij", 11, 0, "abcdefghij", 1, 0);
+    test("abcdefghij", 11, 0, "abcdefghij", 5, 0);
+    test("abcdefghij", 11, 0, "abcdefghij", 9, 0);
+    test("abcdefghij", 11, 0, "abcdefghij", 10, 0);
+    test("abcdefghij", 11, 0, "abcdefghijklmnopqrst", 0, 0);
+    test("abcdefghij", 11, 0, "abcdefghijklmnopqrst", 1, 0);
+    test("abcdefghij", 11, 0, "abcdefghijklmnopqrst", 10, 0);
+    test("abcdefghij", 11, 0, "abcdefghijklmnopqrst", 19, 0);
+    test("abcdefghij", 11, 0, "abcdefghijklmnopqrst", 20, 0);
+}
+
+void test8()
+{
+    test("abcdefghijklmnopqrst", 0, 0, "", 0, 0);
+    test("abcdefghijklmnopqrst", 0, 0, "abcde", 0, 0);
+    test("abcdefghijklmnopqrst", 0, 0, "abcde", 1, -1);
+    test("abcdefghijklmnopqrst", 0, 0, "abcde", 2, -2);
+    test("abcdefghijklmnopqrst", 0, 0, "abcde", 4, -4);
+    test("abcdefghijklmnopqrst", 0, 0, "abcde", 5, -5);
+    test("abcdefghijklmnopqrst", 0, 0, "abcdefghij", 0, 0);
+    test("abcdefghijklmnopqrst", 0, 0, "abcdefghij", 1, -1);
+    test("abcdefghijklmnopqrst", 0, 0, "abcdefghij", 5, -5);
+    test("abcdefghijklmnopqrst", 0, 0, "abcdefghij", 9, -9);
+    test("abcdefghijklmnopqrst", 0, 0, "abcdefghij", 10, -10);
+    test("abcdefghijklmnopqrst", 0, 0, "abcdefghijklmnopqrst", 0, 0);
+    test("abcdefghijklmnopqrst", 0, 0, "abcdefghijklmnopqrst", 1, -1);
+    test("abcdefghijklmnopqrst", 0, 0, "abcdefghijklmnopqrst", 10, -10);
+    test("abcdefghijklmnopqrst", 0, 0, "abcdefghijklmnopqrst", 19, -19);
+    test("abcdefghijklmnopqrst", 0, 0, "abcdefghijklmnopqrst", 20, -20);
+    test("abcdefghijklmnopqrst", 0, 1, "", 0, 1);
+    test("abcdefghijklmnopqrst", 0, 1, "abcde", 0, 1);
+    test("abcdefghijklmnopqrst", 0, 1, "abcde", 1, 0);
+    test("abcdefghijklmnopqrst", 0, 1, "abcde", 2, -1);
+    test("abcdefghijklmnopqrst", 0, 1, "abcde", 4, -3);
+    test("abcdefghijklmnopqrst", 0, 1, "abcde", 5, -4);
+    test("abcdefghijklmnopqrst", 0, 1, "abcdefghij", 0, 1);
+    test("abcdefghijklmnopqrst", 0, 1, "abcdefghij", 1, 0);
+    test("abcdefghijklmnopqrst", 0, 1, "abcdefghij", 5, -4);
+    test("abcdefghijklmnopqrst", 0, 1, "abcdefghij", 9, -8);
+    test("abcdefghijklmnopqrst", 0, 1, "abcdefghij", 10, -9);
+    test("abcdefghijklmnopqrst", 0, 1, "abcdefghijklmnopqrst", 0, 1);
+    test("abcdefghijklmnopqrst", 0, 1, "abcdefghijklmnopqrst", 1, 0);
+    test("abcdefghijklmnopqrst", 0, 1, "abcdefghijklmnopqrst", 10, -9);
+    test("abcdefghijklmnopqrst", 0, 1, "abcdefghijklmnopqrst", 19, -18);
+    test("abcdefghijklmnopqrst", 0, 1, "abcdefghijklmnopqrst", 20, -19);
+    test("abcdefghijklmnopqrst", 0, 10, "", 0, 10);
+    test("abcdefghijklmnopqrst", 0, 10, "abcde", 0, 10);
+    test("abcdefghijklmnopqrst", 0, 10, "abcde", 1, 9);
+    test("abcdefghijklmnopqrst", 0, 10, "abcde", 2, 8);
+    test("abcdefghijklmnopqrst", 0, 10, "abcde", 4, 6);
+    test("abcdefghijklmnopqrst", 0, 10, "abcde", 5, 5);
+    test("abcdefghijklmnopqrst", 0, 10, "abcdefghij", 0, 10);
+    test("abcdefghijklmnopqrst", 0, 10, "abcdefghij", 1, 9);
+    test("abcdefghijklmnopqrst", 0, 10, "abcdefghij", 5, 5);
+    test("abcdefghijklmnopqrst", 0, 10, "abcdefghij", 9, 1);
+    test("abcdefghijklmnopqrst", 0, 10, "abcdefghij", 10, 0);
+    test("abcdefghijklmnopqrst", 0, 10, "abcdefghijklmnopqrst", 0, 10);
+    test("abcdefghijklmnopqrst", 0, 10, "abcdefghijklmnopqrst", 1, 9);
+    test("abcdefghijklmnopqrst", 0, 10, "abcdefghijklmnopqrst", 10, 0);
+    test("abcdefghijklmnopqrst", 0, 10, "abcdefghijklmnopqrst", 19, -9);
+    test("abcdefghijklmnopqrst", 0, 10, "abcdefghijklmnopqrst", 20, -10);
+    test("abcdefghijklmnopqrst", 0, 19, "", 0, 19);
+    test("abcdefghijklmnopqrst", 0, 19, "abcde", 0, 19);
+    test("abcdefghijklmnopqrst", 0, 19, "abcde", 1, 18);
+    test("abcdefghijklmnopqrst", 0, 19, "abcde", 2, 17);
+    test("abcdefghijklmnopqrst", 0, 19, "abcde", 4, 15);
+    test("abcdefghijklmnopqrst", 0, 19, "abcde", 5, 14);
+    test("abcdefghijklmnopqrst", 0, 19, "abcdefghij", 0, 19);
+    test("abcdefghijklmnopqrst", 0, 19, "abcdefghij", 1, 18);
+    test("abcdefghijklmnopqrst", 0, 19, "abcdefghij", 5, 14);
+    test("abcdefghijklmnopqrst", 0, 19, "abcdefghij", 9, 10);
+    test("abcdefghijklmnopqrst", 0, 19, "abcdefghij", 10, 9);
+    test("abcdefghijklmnopqrst", 0, 19, "abcdefghijklmnopqrst", 0, 19);
+    test("abcdefghijklmnopqrst", 0, 19, "abcdefghijklmnopqrst", 1, 18);
+    test("abcdefghijklmnopqrst", 0, 19, "abcdefghijklmnopqrst", 10, 9);
+    test("abcdefghijklmnopqrst", 0, 19, "abcdefghijklmnopqrst", 19, 0);
+    test("abcdefghijklmnopqrst", 0, 19, "abcdefghijklmnopqrst", 20, -1);
+    test("abcdefghijklmnopqrst", 0, 20, "", 0, 20);
+    test("abcdefghijklmnopqrst", 0, 20, "abcde", 0, 20);
+    test("abcdefghijklmnopqrst", 0, 20, "abcde", 1, 19);
+    test("abcdefghijklmnopqrst", 0, 20, "abcde", 2, 18);
+    test("abcdefghijklmnopqrst", 0, 20, "abcde", 4, 16);
+    test("abcdefghijklmnopqrst", 0, 20, "abcde", 5, 15);
+    test("abcdefghijklmnopqrst", 0, 20, "abcdefghij", 0, 20);
+    test("abcdefghijklmnopqrst", 0, 20, "abcdefghij", 1, 19);
+    test("abcdefghijklmnopqrst", 0, 20, "abcdefghij", 5, 15);
+    test("abcdefghijklmnopqrst", 0, 20, "abcdefghij", 9, 11);
+    test("abcdefghijklmnopqrst", 0, 20, "abcdefghij", 10, 10);
+    test("abcdefghijklmnopqrst", 0, 20, "abcdefghijklmnopqrst", 0, 20);
+    test("abcdefghijklmnopqrst", 0, 20, "abcdefghijklmnopqrst", 1, 19);
+    test("abcdefghijklmnopqrst", 0, 20, "abcdefghijklmnopqrst", 10, 10);
+    test("abcdefghijklmnopqrst", 0, 20, "abcdefghijklmnopqrst", 19, 1);
+    test("abcdefghijklmnopqrst", 0, 20, "abcdefghijklmnopqrst", 20, 0);
+    test("abcdefghijklmnopqrst", 0, 21, "", 0, 20);
+    test("abcdefghijklmnopqrst", 0, 21, "abcde", 0, 20);
+    test("abcdefghijklmnopqrst", 0, 21, "abcde", 1, 19);
+    test("abcdefghijklmnopqrst", 0, 21, "abcde", 2, 18);
+    test("abcdefghijklmnopqrst", 0, 21, "abcde", 4, 16);
+    test("abcdefghijklmnopqrst", 0, 21, "abcde", 5, 15);
+    test("abcdefghijklmnopqrst", 0, 21, "abcdefghij", 0, 20);
+    test("abcdefghijklmnopqrst", 0, 21, "abcdefghij", 1, 19);
+    test("abcdefghijklmnopqrst", 0, 21, "abcdefghij", 5, 15);
+    test("abcdefghijklmnopqrst", 0, 21, "abcdefghij", 9, 11);
+    test("abcdefghijklmnopqrst", 0, 21, "abcdefghij", 10, 10);
+    test("abcdefghijklmnopqrst", 0, 21, "abcdefghijklmnopqrst", 0, 20);
+    test("abcdefghijklmnopqrst", 0, 21, "abcdefghijklmnopqrst", 1, 19);
+    test("abcdefghijklmnopqrst", 0, 21, "abcdefghijklmnopqrst", 10, 10);
+    test("abcdefghijklmnopqrst", 0, 21, "abcdefghijklmnopqrst", 19, 1);
+    test("abcdefghijklmnopqrst", 0, 21, "abcdefghijklmnopqrst", 20, 0);
+    test("abcdefghijklmnopqrst", 1, 0, "", 0, 0);
+    test("abcdefghijklmnopqrst", 1, 0, "abcde", 0, 0);
+    test("abcdefghijklmnopqrst", 1, 0, "abcde", 1, -1);
+    test("abcdefghijklmnopqrst", 1, 0, "abcde", 2, -2);
+}
+
+
+void test9()
+{
+    test("abcdefghijklmnopqrst", 1, 0, "abcde", 4, -4);
+    test("abcdefghijklmnopqrst", 1, 0, "abcde", 5, -5);
+    test("abcdefghijklmnopqrst", 1, 0, "abcdefghij", 0, 0);
+    test("abcdefghijklmnopqrst", 1, 0, "abcdefghij", 1, -1);
+    test("abcdefghijklmnopqrst", 1, 0, "abcdefghij", 5, -5);
+    test("abcdefghijklmnopqrst", 1, 0, "abcdefghij", 9, -9);
+    test("abcdefghijklmnopqrst", 1, 0, "abcdefghij", 10, -10);
+    test("abcdefghijklmnopqrst", 1, 0, "abcdefghijklmnopqrst", 0, 0);
+    test("abcdefghijklmnopqrst", 1, 0, "abcdefghijklmnopqrst", 1, -1);
+    test("abcdefghijklmnopqrst", 1, 0, "abcdefghijklmnopqrst", 10, -10);
+    test("abcdefghijklmnopqrst", 1, 0, "abcdefghijklmnopqrst", 19, -19);
+    test("abcdefghijklmnopqrst", 1, 0, "abcdefghijklmnopqrst", 20, -20);
+    test("abcdefghijklmnopqrst", 1, 1, "", 0, 1);
+    test("abcdefghijklmnopqrst", 1, 1, "abcde", 0, 1);
+    test("abcdefghijklmnopqrst", 1, 1, "abcde", 1, 1);
+    test("abcdefghijklmnopqrst", 1, 1, "abcde", 2, 1);
+    test("abcdefghijklmnopqrst", 1, 1, "abcde", 4, 1);
+    test("abcdefghijklmnopqrst", 1, 1, "abcde", 5, 1);
+    test("abcdefghijklmnopqrst", 1, 1, "abcdefghij", 0, 1);
+    test("abcdefghijklmnopqrst", 1, 1, "abcdefghij", 1, 1);
+    test("abcdefghijklmnopqrst", 1, 1, "abcdefghij", 5, 1);
+    test("abcdefghijklmnopqrst", 1, 1, "abcdefghij", 9, 1);
+    test("abcdefghijklmnopqrst", 1, 1, "abcdefghij", 10, 1);
+    test("abcdefghijklmnopqrst", 1, 1, "abcdefghijklmnopqrst", 0, 1);
+    test("abcdefghijklmnopqrst", 1, 1, "abcdefghijklmnopqrst", 1, 1);
+    test("abcdefghijklmnopqrst", 1, 1, "abcdefghijklmnopqrst", 10, 1);
+    test("abcdefghijklmnopqrst", 1, 1, "abcdefghijklmnopqrst", 19, 1);
+    test("abcdefghijklmnopqrst", 1, 1, "abcdefghijklmnopqrst", 20, 1);
+    test("abcdefghijklmnopqrst", 1, 9, "", 0, 9);
+    test("abcdefghijklmnopqrst", 1, 9, "abcde", 0, 9);
+    test("abcdefghijklmnopqrst", 1, 9, "abcde", 1, 1);
+    test("abcdefghijklmnopqrst", 1, 9, "abcde", 2, 1);
+    test("abcdefghijklmnopqrst", 1, 9, "abcde", 4, 1);
+    test("abcdefghijklmnopqrst", 1, 9, "abcde", 5, 1);
+    test("abcdefghijklmnopqrst", 1, 9, "abcdefghij", 0, 9);
+    test("abcdefghijklmnopqrst", 1, 9, "abcdefghij", 1, 1);
+    test("abcdefghijklmnopqrst", 1, 9, "abcdefghij", 5, 1);
+    test("abcdefghijklmnopqrst", 1, 9, "abcdefghij", 9, 1);
+    test("abcdefghijklmnopqrst", 1, 9, "abcdefghij", 10, 1);
+    test("abcdefghijklmnopqrst", 1, 9, "abcdefghijklmnopqrst", 0, 9);
+    test("abcdefghijklmnopqrst", 1, 9, "abcdefghijklmnopqrst", 1, 1);
+    test("abcdefghijklmnopqrst", 1, 9, "abcdefghijklmnopqrst", 10, 1);
+    test("abcdefghijklmnopqrst", 1, 9, "abcdefghijklmnopqrst", 19, 1);
+    test("abcdefghijklmnopqrst", 1, 9, "abcdefghijklmnopqrst", 20, 1);
+    test("abcdefghijklmnopqrst", 1, 18, "", 0, 18);
+    test("abcdefghijklmnopqrst", 1, 18, "abcde", 0, 18);
+    test("abcdefghijklmnopqrst", 1, 18, "abcde", 1, 1);
+    test("abcdefghijklmnopqrst", 1, 18, "abcde", 2, 1);
+    test("abcdefghijklmnopqrst", 1, 18, "abcde", 4, 1);
+    test("abcdefghijklmnopqrst", 1, 18, "abcde", 5, 1);
+    test("abcdefghijklmnopqrst", 1, 18, "abcdefghij", 0, 18);
+    test("abcdefghijklmnopqrst", 1, 18, "abcdefghij", 1, 1);
+    test("abcdefghijklmnopqrst", 1, 18, "abcdefghij", 5, 1);
+    test("abcdefghijklmnopqrst", 1, 18, "abcdefghij", 9, 1);
+    test("abcdefghijklmnopqrst", 1, 18, "abcdefghij", 10, 1);
+    test("abcdefghijklmnopqrst", 1, 18, "abcdefghijklmnopqrst", 0, 18);
+    test("abcdefghijklmnopqrst", 1, 18, "abcdefghijklmnopqrst", 1, 1);
+    test("abcdefghijklmnopqrst", 1, 18, "abcdefghijklmnopqrst", 10, 1);
+    test("abcdefghijklmnopqrst", 1, 18, "abcdefghijklmnopqrst", 19, 1);
+    test("abcdefghijklmnopqrst", 1, 18, "abcdefghijklmnopqrst", 20, 1);
+    test("abcdefghijklmnopqrst", 1, 19, "", 0, 19);
+    test("abcdefghijklmnopqrst", 1, 19, "abcde", 0, 19);
+    test("abcdefghijklmnopqrst", 1, 19, "abcde", 1, 1);
+    test("abcdefghijklmnopqrst", 1, 19, "abcde", 2, 1);
+    test("abcdefghijklmnopqrst", 1, 19, "abcde", 4, 1);
+    test("abcdefghijklmnopqrst", 1, 19, "abcde", 5, 1);
+    test("abcdefghijklmnopqrst", 1, 19, "abcdefghij", 0, 19);
+    test("abcdefghijklmnopqrst", 1, 19, "abcdefghij", 1, 1);
+    test("abcdefghijklmnopqrst", 1, 19, "abcdefghij", 5, 1);
+    test("abcdefghijklmnopqrst", 1, 19, "abcdefghij", 9, 1);
+    test("abcdefghijklmnopqrst", 1, 19, "abcdefghij", 10, 1);
+    test("abcdefghijklmnopqrst", 1, 19, "abcdefghijklmnopqrst", 0, 19);
+    test("abcdefghijklmnopqrst", 1, 19, "abcdefghijklmnopqrst", 1, 1);
+    test("abcdefghijklmnopqrst", 1, 19, "abcdefghijklmnopqrst", 10, 1);
+    test("abcdefghijklmnopqrst", 1, 19, "abcdefghijklmnopqrst", 19, 1);
+    test("abcdefghijklmnopqrst", 1, 19, "abcdefghijklmnopqrst", 20, 1);
+    test("abcdefghijklmnopqrst", 1, 20, "", 0, 19);
+    test("abcdefghijklmnopqrst", 1, 20, "abcde", 0, 19);
+    test("abcdefghijklmnopqrst", 1, 20, "abcde", 1, 1);
+    test("abcdefghijklmnopqrst", 1, 20, "abcde", 2, 1);
+    test("abcdefghijklmnopqrst", 1, 20, "abcde", 4, 1);
+    test("abcdefghijklmnopqrst", 1, 20, "abcde", 5, 1);
+    test("abcdefghijklmnopqrst", 1, 20, "abcdefghij", 0, 19);
+    test("abcdefghijklmnopqrst", 1, 20, "abcdefghij", 1, 1);
+    test("abcdefghijklmnopqrst", 1, 20, "abcdefghij", 5, 1);
+    test("abcdefghijklmnopqrst", 1, 20, "abcdefghij", 9, 1);
+    test("abcdefghijklmnopqrst", 1, 20, "abcdefghij", 10, 1);
+    test("abcdefghijklmnopqrst", 1, 20, "abcdefghijklmnopqrst", 0, 19);
+    test("abcdefghijklmnopqrst", 1, 20, "abcdefghijklmnopqrst", 1, 1);
+    test("abcdefghijklmnopqrst", 1, 20, "abcdefghijklmnopqrst", 10, 1);
+    test("abcdefghijklmnopqrst", 1, 20, "abcdefghijklmnopqrst", 19, 1);
+    test("abcdefghijklmnopqrst", 1, 20, "abcdefghijklmnopqrst", 20, 1);
+    test("abcdefghijklmnopqrst", 10, 0, "", 0, 0);
+    test("abcdefghijklmnopqrst", 10, 0, "abcde", 0, 0);
+    test("abcdefghijklmnopqrst", 10, 0, "abcde", 1, -1);
+    test("abcdefghijklmnopqrst", 10, 0, "abcde", 2, -2);
+    test("abcdefghijklmnopqrst", 10, 0, "abcde", 4, -4);
+    test("abcdefghijklmnopqrst", 10, 0, "abcde", 5, -5);
+    test("abcdefghijklmnopqrst", 10, 0, "abcdefghij", 0, 0);
+    test("abcdefghijklmnopqrst", 10, 0, "abcdefghij", 1, -1);
+}
+
+
+void test10()
+{
+    test("abcdefghijklmnopqrst", 10, 0, "abcdefghij", 5, -5);
+    test("abcdefghijklmnopqrst", 10, 0, "abcdefghij", 9, -9);
+    test("abcdefghijklmnopqrst", 10, 0, "abcdefghij", 10, -10);
+    test("abcdefghijklmnopqrst", 10, 0, "abcdefghijklmnopqrst", 0, 0);
+    test("abcdefghijklmnopqrst", 10, 0, "abcdefghijklmnopqrst", 1, -1);
+    test("abcdefghijklmnopqrst", 10, 0, "abcdefghijklmnopqrst", 10, -10);
+    test("abcdefghijklmnopqrst", 10, 0, "abcdefghijklmnopqrst", 19, -19);
+    test("abcdefghijklmnopqrst", 10, 0, "abcdefghijklmnopqrst", 20, -20);
+    test("abcdefghijklmnopqrst", 10, 1, "", 0, 1);
+    test("abcdefghijklmnopqrst", 10, 1, "abcde", 0, 1);
+    test("abcdefghijklmnopqrst", 10, 1, "abcde", 1, 10);
+    test("abcdefghijklmnopqrst", 10, 1, "abcde", 2, 10);
+    test("abcdefghijklmnopqrst", 10, 1, "abcde", 4, 10);
+    test("abcdefghijklmnopqrst", 10, 1, "abcde", 5, 10);
+    test("abcdefghijklmnopqrst", 10, 1, "abcdefghij", 0, 1);
+    test("abcdefghijklmnopqrst", 10, 1, "abcdefghij", 1, 10);
+    test("abcdefghijklmnopqrst", 10, 1, "abcdefghij", 5, 10);
+    test("abcdefghijklmnopqrst", 10, 1, "abcdefghij", 9, 10);
+    test("abcdefghijklmnopqrst", 10, 1, "abcdefghij", 10, 10);
+    test("abcdefghijklmnopqrst", 10, 1, "abcdefghijklmnopqrst", 0, 1);
+    test("abcdefghijklmnopqrst", 10, 1, "abcdefghijklmnopqrst", 1, 10);
+    test("abcdefghijklmnopqrst", 10, 1, "abcdefghijklmnopqrst", 10, 10);
+    test("abcdefghijklmnopqrst", 10, 1, "abcdefghijklmnopqrst", 19, 10);
+    test("abcdefghijklmnopqrst", 10, 1, "abcdefghijklmnopqrst", 20, 10);
+    test("abcdefghijklmnopqrst", 10, 5, "", 0, 5);
+    test("abcdefghijklmnopqrst", 10, 5, "abcde", 0, 5);
+    test("abcdefghijklmnopqrst", 10, 5, "abcde", 1, 10);
+    test("abcdefghijklmnopqrst", 10, 5, "abcde", 2, 10);
+    test("abcdefghijklmnopqrst", 10, 5, "abcde", 4, 10);
+    test("abcdefghijklmnopqrst", 10, 5, "abcde", 5, 10);
+    test("abcdefghijklmnopqrst", 10, 5, "abcdefghij", 0, 5);
+    test("abcdefghijklmnopqrst", 10, 5, "abcdefghij", 1, 10);
+    test("abcdefghijklmnopqrst", 10, 5, "abcdefghij", 5, 10);
+    test("abcdefghijklmnopqrst", 10, 5, "abcdefghij", 9, 10);
+    test("abcdefghijklmnopqrst", 10, 5, "abcdefghij", 10, 10);
+    test("abcdefghijklmnopqrst", 10, 5, "abcdefghijklmnopqrst", 0, 5);
+    test("abcdefghijklmnopqrst", 10, 5, "abcdefghijklmnopqrst", 1, 10);
+    test("abcdefghijklmnopqrst", 10, 5, "abcdefghijklmnopqrst", 10, 10);
+    test("abcdefghijklmnopqrst", 10, 5, "abcdefghijklmnopqrst", 19, 10);
+    test("abcdefghijklmnopqrst", 10, 5, "abcdefghijklmnopqrst", 20, 10);
+    test("abcdefghijklmnopqrst", 10, 9, "", 0, 9);
+    test("abcdefghijklmnopqrst", 10, 9, "abcde", 0, 9);
+    test("abcdefghijklmnopqrst", 10, 9, "abcde", 1, 10);
+    test("abcdefghijklmnopqrst", 10, 9, "abcde", 2, 10);
+    test("abcdefghijklmnopqrst", 10, 9, "abcde", 4, 10);
+    test("abcdefghijklmnopqrst", 10, 9, "abcde", 5, 10);
+    test("abcdefghijklmnopqrst", 10, 9, "abcdefghij", 0, 9);
+    test("abcdefghijklmnopqrst", 10, 9, "abcdefghij", 1, 10);
+    test("abcdefghijklmnopqrst", 10, 9, "abcdefghij", 5, 10);
+    test("abcdefghijklmnopqrst", 10, 9, "abcdefghij", 9, 10);
+    test("abcdefghijklmnopqrst", 10, 9, "abcdefghij", 10, 10);
+    test("abcdefghijklmnopqrst", 10, 9, "abcdefghijklmnopqrst", 0, 9);
+    test("abcdefghijklmnopqrst", 10, 9, "abcdefghijklmnopqrst", 1, 10);
+    test("abcdefghijklmnopqrst", 10, 9, "abcdefghijklmnopqrst", 10, 10);
+    test("abcdefghijklmnopqrst", 10, 9, "abcdefghijklmnopqrst", 19, 10);
+    test("abcdefghijklmnopqrst", 10, 9, "abcdefghijklmnopqrst", 20, 10);
+    test("abcdefghijklmnopqrst", 10, 10, "", 0, 10);
+    test("abcdefghijklmnopqrst", 10, 10, "abcde", 0, 10);
+    test("abcdefghijklmnopqrst", 10, 10, "abcde", 1, 10);
+    test("abcdefghijklmnopqrst", 10, 10, "abcde", 2, 10);
+    test("abcdefghijklmnopqrst", 10, 10, "abcde", 4, 10);
+    test("abcdefghijklmnopqrst", 10, 10, "abcde", 5, 10);
+    test("abcdefghijklmnopqrst", 10, 10, "abcdefghij", 0, 10);
+    test("abcdefghijklmnopqrst", 10, 10, "abcdefghij", 1, 10);
+    test("abcdefghijklmnopqrst", 10, 10, "abcdefghij", 5, 10);
+    test("abcdefghijklmnopqrst", 10, 10, "abcdefghij", 9, 10);
+    test("abcdefghijklmnopqrst", 10, 10, "abcdefghij", 10, 10);
+    test("abcdefghijklmnopqrst", 10, 10, "abcdefghijklmnopqrst", 0, 10);
+    test("abcdefghijklmnopqrst", 10, 10, "abcdefghijklmnopqrst", 1, 10);
+    test("abcdefghijklmnopqrst", 10, 10, "abcdefghijklmnopqrst", 10, 10);
+    test("abcdefghijklmnopqrst", 10, 10, "abcdefghijklmnopqrst", 19, 10);
+    test("abcdefghijklmnopqrst", 10, 10, "abcdefghijklmnopqrst", 20, 10);
+    test("abcdefghijklmnopqrst", 10, 11, "", 0, 10);
+    test("abcdefghijklmnopqrst", 10, 11, "abcde", 0, 10);
+    test("abcdefghijklmnopqrst", 10, 11, "abcde", 1, 10);
+    test("abcdefghijklmnopqrst", 10, 11, "abcde", 2, 10);
+    test("abcdefghijklmnopqrst", 10, 11, "abcde", 4, 10);
+    test("abcdefghijklmnopqrst", 10, 11, "abcde", 5, 10);
+    test("abcdefghijklmnopqrst", 10, 11, "abcdefghij", 0, 10);
+    test("abcdefghijklmnopqrst", 10, 11, "abcdefghij", 1, 10);
+    test("abcdefghijklmnopqrst", 10, 11, "abcdefghij", 5, 10);
+    test("abcdefghijklmnopqrst", 10, 11, "abcdefghij", 9, 10);
+    test("abcdefghijklmnopqrst", 10, 11, "abcdefghij", 10, 10);
+    test("abcdefghijklmnopqrst", 10, 11, "abcdefghijklmnopqrst", 0, 10);
+    test("abcdefghijklmnopqrst", 10, 11, "abcdefghijklmnopqrst", 1, 10);
+    test("abcdefghijklmnopqrst", 10, 11, "abcdefghijklmnopqrst", 10, 10);
+    test("abcdefghijklmnopqrst", 10, 11, "abcdefghijklmnopqrst", 19, 10);
+    test("abcdefghijklmnopqrst", 10, 11, "abcdefghijklmnopqrst", 20, 10);
+    test("abcdefghijklmnopqrst", 19, 0, "", 0, 0);
+    test("abcdefghijklmnopqrst", 19, 0, "abcde", 0, 0);
+    test("abcdefghijklmnopqrst", 19, 0, "abcde", 1, -1);
+    test("abcdefghijklmnopqrst", 19, 0, "abcde", 2, -2);
+    test("abcdefghijklmnopqrst", 19, 0, "abcde", 4, -4);
+    test("abcdefghijklmnopqrst", 19, 0, "abcde", 5, -5);
+    test("abcdefghijklmnopqrst", 19, 0, "abcdefghij", 0, 0);
+    test("abcdefghijklmnopqrst", 19, 0, "abcdefghij", 1, -1);
+    test("abcdefghijklmnopqrst", 19, 0, "abcdefghij", 5, -5);
+    test("abcdefghijklmnopqrst", 19, 0, "abcdefghij", 9, -9);
+    test("abcdefghijklmnopqrst", 19, 0, "abcdefghij", 10, -10);
+    test("abcdefghijklmnopqrst", 19, 0, "abcdefghijklmnopqrst", 0, 0);
+}
+
+
+void test11()
+{
+    test("abcdefghijklmnopqrst", 19, 0, "abcdefghijklmnopqrst", 1, -1);
+    test("abcdefghijklmnopqrst", 19, 0, "abcdefghijklmnopqrst", 10, -10);
+    test("abcdefghijklmnopqrst", 19, 0, "abcdefghijklmnopqrst", 19, -19);
+    test("abcdefghijklmnopqrst", 19, 0, "abcdefghijklmnopqrst", 20, -20);
+    test("abcdefghijklmnopqrst", 19, 1, "", 0, 1);
+    test("abcdefghijklmnopqrst", 19, 1, "abcde", 0, 1);
+    test("abcdefghijklmnopqrst", 19, 1, "abcde", 1, 19);
+    test("abcdefghijklmnopqrst", 19, 1, "abcde", 2, 19);
+    test("abcdefghijklmnopqrst", 19, 1, "abcde", 4, 19);
+    test("abcdefghijklmnopqrst", 19, 1, "abcde", 5, 19);
+    test("abcdefghijklmnopqrst", 19, 1, "abcdefghij", 0, 1);
+    test("abcdefghijklmnopqrst", 19, 1, "abcdefghij", 1, 19);
+    test("abcdefghijklmnopqrst", 19, 1, "abcdefghij", 5, 19);
+    test("abcdefghijklmnopqrst", 19, 1, "abcdefghij", 9, 19);
+    test("abcdefghijklmnopqrst", 19, 1, "abcdefghij", 10, 19);
+    test("abcdefghijklmnopqrst", 19, 1, "abcdefghijklmnopqrst", 0, 1);
+    test("abcdefghijklmnopqrst", 19, 1, "abcdefghijklmnopqrst", 1, 19);
+    test("abcdefghijklmnopqrst", 19, 1, "abcdefghijklmnopqrst", 10, 19);
+    test("abcdefghijklmnopqrst", 19, 1, "abcdefghijklmnopqrst", 19, 19);
+    test("abcdefghijklmnopqrst", 19, 1, "abcdefghijklmnopqrst", 20, 19);
+    test("abcdefghijklmnopqrst", 19, 2, "", 0, 1);
+    test("abcdefghijklmnopqrst", 19, 2, "abcde", 0, 1);
+    test("abcdefghijklmnopqrst", 19, 2, "abcde", 1, 19);
+    test("abcdefghijklmnopqrst", 19, 2, "abcde", 2, 19);
+    test("abcdefghijklmnopqrst", 19, 2, "abcde", 4, 19);
+    test("abcdefghijklmnopqrst", 19, 2, "abcde", 5, 19);
+    test("abcdefghijklmnopqrst", 19, 2, "abcdefghij", 0, 1);
+    test("abcdefghijklmnopqrst", 19, 2, "abcdefghij", 1, 19);
+    test("abcdefghijklmnopqrst", 19, 2, "abcdefghij", 5, 19);
+    test("abcdefghijklmnopqrst", 19, 2, "abcdefghij", 9, 19);
+    test("abcdefghijklmnopqrst", 19, 2, "abcdefghij", 10, 19);
+    test("abcdefghijklmnopqrst", 19, 2, "abcdefghijklmnopqrst", 0, 1);
+    test("abcdefghijklmnopqrst", 19, 2, "abcdefghijklmnopqrst", 1, 19);
+    test("abcdefghijklmnopqrst", 19, 2, "abcdefghijklmnopqrst", 10, 19);
+    test("abcdefghijklmnopqrst", 19, 2, "abcdefghijklmnopqrst", 19, 19);
+    test("abcdefghijklmnopqrst", 19, 2, "abcdefghijklmnopqrst", 20, 19);
+    test("abcdefghijklmnopqrst", 20, 0, "", 0, 0);
+    test("abcdefghijklmnopqrst", 20, 0, "abcde", 0, 0);
+    test("abcdefghijklmnopqrst", 20, 0, "abcde", 1, -1);
+    test("abcdefghijklmnopqrst", 20, 0, "abcde", 2, -2);
+    test("abcdefghijklmnopqrst", 20, 0, "abcde", 4, -4);
+    test("abcdefghijklmnopqrst", 20, 0, "abcde", 5, -5);
+    test("abcdefghijklmnopqrst", 20, 0, "abcdefghij", 0, 0);
+    test("abcdefghijklmnopqrst", 20, 0, "abcdefghij", 1, -1);
+    test("abcdefghijklmnopqrst", 20, 0, "abcdefghij", 5, -5);
+    test("abcdefghijklmnopqrst", 20, 0, "abcdefghij", 9, -9);
+    test("abcdefghijklmnopqrst", 20, 0, "abcdefghij", 10, -10);
+    test("abcdefghijklmnopqrst", 20, 0, "abcdefghijklmnopqrst", 0, 0);
+    test("abcdefghijklmnopqrst", 20, 0, "abcdefghijklmnopqrst", 1, -1);
+    test("abcdefghijklmnopqrst", 20, 0, "abcdefghijklmnopqrst", 10, -10);
+    test("abcdefghijklmnopqrst", 20, 0, "abcdefghijklmnopqrst", 19, -19);
+    test("abcdefghijklmnopqrst", 20, 0, "abcdefghijklmnopqrst", 20, -20);
+    test("abcdefghijklmnopqrst", 20, 1, "", 0, 0);
+    test("abcdefghijklmnopqrst", 20, 1, "abcde", 0, 0);
+    test("abcdefghijklmnopqrst", 20, 1, "abcde", 1, -1);
+    test("abcdefghijklmnopqrst", 20, 1, "abcde", 2, -2);
+    test("abcdefghijklmnopqrst", 20, 1, "abcde", 4, -4);
+    test("abcdefghijklmnopqrst", 20, 1, "abcde", 5, -5);
+    test("abcdefghijklmnopqrst", 20, 1, "abcdefghij", 0, 0);
+    test("abcdefghijklmnopqrst", 20, 1, "abcdefghij", 1, -1);
+    test("abcdefghijklmnopqrst", 20, 1, "abcdefghij", 5, -5);
+    test("abcdefghijklmnopqrst", 20, 1, "abcdefghij", 9, -9);
+    test("abcdefghijklmnopqrst", 20, 1, "abcdefghij", 10, -10);
+    test("abcdefghijklmnopqrst", 20, 1, "abcdefghijklmnopqrst", 0, 0);
+    test("abcdefghijklmnopqrst", 20, 1, "abcdefghijklmnopqrst", 1, -1);
+    test("abcdefghijklmnopqrst", 20, 1, "abcdefghijklmnopqrst", 10, -10);
+    test("abcdefghijklmnopqrst", 20, 1, "abcdefghijklmnopqrst", 19, -19);
+    test("abcdefghijklmnopqrst", 20, 1, "abcdefghijklmnopqrst", 20, -20);
+    test("abcdefghijklmnopqrst", 21, 0, "", 0, 0);
+    test("abcdefghijklmnopqrst", 21, 0, "abcde", 0, 0);
+    test("abcdefghijklmnopqrst", 21, 0, "abcde", 1, 0);
+    test("abcdefghijklmnopqrst", 21, 0, "abcde", 2, 0);
+    test("abcdefghijklmnopqrst", 21, 0, "abcde", 4, 0);
+    test("abcdefghijklmnopqrst", 21, 0, "abcde", 5, 0);
+    test("abcdefghijklmnopqrst", 21, 0, "abcdefghij", 0, 0);
+    test("abcdefghijklmnopqrst", 21, 0, "abcdefghij", 1, 0);
+    test("abcdefghijklmnopqrst", 21, 0, "abcdefghij", 5, 0);
+    test("abcdefghijklmnopqrst", 21, 0, "abcdefghij", 9, 0);
+    test("abcdefghijklmnopqrst", 21, 0, "abcdefghij", 10, 0);
+    test("abcdefghijklmnopqrst", 21, 0, "abcdefghijklmnopqrst", 0, 0);
+    test("abcdefghijklmnopqrst", 21, 0, "abcdefghijklmnopqrst", 1, 0);
+    test("abcdefghijklmnopqrst", 21, 0, "abcdefghijklmnopqrst", 10, 0);
+    test("abcdefghijklmnopqrst", 21, 0, "abcdefghijklmnopqrst", 19, 0);
+    test("abcdefghijklmnopqrst", 21, 0, "abcdefghijklmnopqrst", 20, 0);
+    }
+
+
+int main () {
+    test0();
+    test1();
+    test2();
+    test3();
+    test4();
+    test5();
+    test6();
+    test7();
+    test8();
+    test9();
+    test10();
+    test11();
+    
+    {
+    test("", 0, 0, "abcde", 0, 0);
+    test("", 0, 0, "abcde", 1, -1);
+    test("abcdefghijklmnopqrst", 21, 0, "abcde", 0, 0);
+    test("abcdefghijklmnopqrst", 21, 0, "abcde", 1, 0);
+    test("abcdefghijklmnopqrst", 10, 0, "abcdefghij", 10, -10);
+    }
+
+    {
+    test(L"", 0, 0, L"abcde", 0, 0);
+    test(L"", 0, 0, L"abcde", 1, -1);
+    test(L"abcdefghijklmnopqrst", 21, 0, L"abcde", 0, 0);
+    test(L"abcdefghijklmnopqrst", 21, 0, L"abcde", 1, 0);
+    test(L"abcdefghijklmnopqrst", 10, 0, L"abcdefghij", 10, -10);
+    }
+
+#if __cplusplus >= 201103L
+    {
+    test(U"", 0, 0, U"abcde", 0, 0);
+    test(U"", 0, 0, U"abcde", 1, -1);
+    test(U"abcdefghijklmnopqrst", 21, 0, U"abcde", 0, 0);
+    test(U"abcdefghijklmnopqrst", 21, 0, U"abcde", 1, 0);
+    test(U"abcdefghijklmnopqrst", 10, 0, U"abcdefghij", 10, -10);
+    }
+
+    {
+    test(U"", 0, 0, U"abcde", 0, 0);
+    test(U"", 0, 0, U"abcde", 1, -1);
+    test(U"abcdefghijklmnopqrst", 21, 0, U"abcde", 0, 0);
+    test(U"abcdefghijklmnopqrst", 21, 0, U"abcde", 1, 0);
+    test(U"abcdefghijklmnopqrst", 10, 0, U"abcdefghij", 10, -10);
+    }
+#endif
+
+#if _LIBCPP_STD_VER > 11
+    {
+    typedef std::experimental::basic_string_view<char, constexpr_char_traits<char>> SV;
+    constexpr SV  sv1;
+    constexpr SV  sv2 { "abcdefghijklmnopqrst", 21 };
+    static_assert ( sv1.compare(0, 0, "abcde", 0) == 0, "" );
+    static_assert ( sv1.compare(0, 0, "abcde", 1) == -1, "" );
+    static_assert ( sv2.compare(0, 0, "abcde", 1, 0) == 0, "" );
+    }
+#endif
+}

Added: libcxx/trunk/test/std/experimental/string.view/string.view.ops/compare.size_size_sv_size_size.pass.cpp
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/test/std/experimental/string.view/string.view.ops/compare.size_size_sv_size_size.pass.cpp?rev=224658&view=auto
==============================================================================
--- libcxx/trunk/test/std/experimental/string.view/string.view.ops/compare.size_size_sv_size_size.pass.cpp (added)
+++ libcxx/trunk/test/std/experimental/string.view/string.view.ops/compare.size_size_sv_size_size.pass.cpp Fri Dec 19 19:40:03 2014
@@ -0,0 +1,5843 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+
+// <string_view>
+
+// constexpr int compare(size_type pos1, size_type n1, basic_string_view str,
+//             size_type pos2, size_type n2) const;
+
+#include <experimental/string_view>
+#include <cassert>
+
+#include "constexpr_char_traits.hpp"
+
+int sign ( int x ) { return x > 0 ? 1 : ( x < 0 ? -1 : 0 ); }
+
+template<typename CharT>
+void test1 ( std::experimental::basic_string_view<CharT> sv1, size_t pos1, size_t n1,
+             std::experimental::basic_string_view<CharT> sv2, size_t pos2, size_t n2,
+             int expected ) {
+
+    try
+    {
+        assert ( sign( sv1.compare(pos1, n1, sv2, pos2, n2)) == sign(expected));
+        assert(pos1 <= sv1.size());
+        assert(pos2 <= sv2.size());
+    }
+    catch (const std::out_of_range&) { assert(pos1 > sv1.size() || pos2 > sv2.size()); }
+}
+
+
+template<typename CharT>
+void test ( const CharT *s1, size_t pos1, size_t n1, 
+            const CharT *s2, size_t pos2, size_t n2, 
+            int expected ) {
+    typedef std::experimental::basic_string_view<CharT> string_view_t;
+    
+    string_view_t sv1 ( s1 );
+    string_view_t sv2 ( s2 );
+    test1(sv1, pos1, n1, sv2, pos2, n2, expected);
+}
+
+void test0()
+{
+    test("", 0, 0, "", 0, 0, 0);
+    test("", 0, 0, "", 0, 1, 0);
+    test("", 0, 0, "", 1, 0, 0);
+    test("", 0, 0, "abcde", 0, 0, 0);
+    test("", 0, 0, "abcde", 0, 1, -1);
+    test("", 0, 0, "abcde", 0, 2, -2);
+    test("", 0, 0, "abcde", 0, 4, -4);
+    test("", 0, 0, "abcde", 0, 5, -5);
+    test("", 0, 0, "abcde", 0, 6, -5);
+    test("", 0, 0, "abcde", 1, 0, 0);
+    test("", 0, 0, "abcde", 1, 1, -1);
+    test("", 0, 0, "abcde", 1, 2, -2);
+    test("", 0, 0, "abcde", 1, 3, -3);
+    test("", 0, 0, "abcde", 1, 4, -4);
+    test("", 0, 0, "abcde", 1, 5, -4);
+    test("", 0, 0, "abcde", 2, 0, 0);
+    test("", 0, 0, "abcde", 2, 1, -1);
+    test("", 0, 0, "abcde", 2, 2, -2);
+    test("", 0, 0, "abcde", 2, 3, -3);
+    test("", 0, 0, "abcde", 2, 4, -3);
+    test("", 0, 0, "abcde", 4, 0, 0);
+    test("", 0, 0, "abcde", 4, 1, -1);
+    test("", 0, 0, "abcde", 4, 2, -1);
+    test("", 0, 0, "abcde", 5, 0, 0);
+    test("", 0, 0, "abcde", 5, 1, 0);
+    test("", 0, 0, "abcde", 6, 0, 0);
+    test("", 0, 0, "abcdefghij", 0, 0, 0);
+    test("", 0, 0, "abcdefghij", 0, 1, -1);
+    test("", 0, 0, "abcdefghij", 0, 5, -5);
+    test("", 0, 0, "abcdefghij", 0, 9, -9);
+    test("", 0, 0, "abcdefghij", 0, 10, -10);
+    test("", 0, 0, "abcdefghij", 0, 11, -10);
+    test("", 0, 0, "abcdefghij", 1, 0, 0);
+    test("", 0, 0, "abcdefghij", 1, 1, -1);
+    test("", 0, 0, "abcdefghij", 1, 4, -4);
+    test("", 0, 0, "abcdefghij", 1, 8, -8);
+    test("", 0, 0, "abcdefghij", 1, 9, -9);
+    test("", 0, 0, "abcdefghij", 1, 10, -9);
+    test("", 0, 0, "abcdefghij", 5, 0, 0);
+    test("", 0, 0, "abcdefghij", 5, 1, -1);
+    test("", 0, 0, "abcdefghij", 5, 2, -2);
+    test("", 0, 0, "abcdefghij", 5, 4, -4);
+    test("", 0, 0, "abcdefghij", 5, 5, -5);
+    test("", 0, 0, "abcdefghij", 5, 6, -5);
+    test("", 0, 0, "abcdefghij", 9, 0, 0);
+    test("", 0, 0, "abcdefghij", 9, 1, -1);
+    test("", 0, 0, "abcdefghij", 9, 2, -1);
+    test("", 0, 0, "abcdefghij", 10, 0, 0);
+    test("", 0, 0, "abcdefghij", 10, 1, 0);
+    test("", 0, 0, "abcdefghij", 11, 0, 0);
+    test("", 0, 0, "abcdefghijklmnopqrst", 0, 0, 0);
+    test("", 0, 0, "abcdefghijklmnopqrst", 0, 1, -1);
+    test("", 0, 0, "abcdefghijklmnopqrst", 0, 10, -10);
+    test("", 0, 0, "abcdefghijklmnopqrst", 0, 19, -19);
+    test("", 0, 0, "abcdefghijklmnopqrst", 0, 20, -20);
+    test("", 0, 0, "abcdefghijklmnopqrst", 0, 21, -20);
+    test("", 0, 0, "abcdefghijklmnopqrst", 1, 0, 0);
+    test("", 0, 0, "abcdefghijklmnopqrst", 1, 1, -1);
+    test("", 0, 0, "abcdefghijklmnopqrst", 1, 9, -9);
+    test("", 0, 0, "abcdefghijklmnopqrst", 1, 18, -18);
+    test("", 0, 0, "abcdefghijklmnopqrst", 1, 19, -19);
+    test("", 0, 0, "abcdefghijklmnopqrst", 1, 20, -19);
+    test("", 0, 0, "abcdefghijklmnopqrst", 10, 0, 0);
+    test("", 0, 0, "abcdefghijklmnopqrst", 10, 1, -1);
+    test("", 0, 0, "abcdefghijklmnopqrst", 10, 5, -5);
+    test("", 0, 0, "abcdefghijklmnopqrst", 10, 9, -9);
+    test("", 0, 0, "abcdefghijklmnopqrst", 10, 10, -10);
+    test("", 0, 0, "abcdefghijklmnopqrst", 10, 11, -10);
+    test("", 0, 0, "abcdefghijklmnopqrst", 19, 0, 0);
+    test("", 0, 0, "abcdefghijklmnopqrst", 19, 1, -1);
+    test("", 0, 0, "abcdefghijklmnopqrst", 19, 2, -1);
+    test("", 0, 0, "abcdefghijklmnopqrst", 20, 0, 0);
+    test("", 0, 0, "abcdefghijklmnopqrst", 20, 1, 0);
+    test("", 0, 0, "abcdefghijklmnopqrst", 21, 0, 0);
+    test("", 0, 1, "", 0, 0, 0);
+    test("", 0, 1, "", 0, 1, 0);
+    test("", 0, 1, "", 1, 0, 0);
+    test("", 0, 1, "abcde", 0, 0, 0);
+    test("", 0, 1, "abcde", 0, 1, -1);
+    test("", 0, 1, "abcde", 0, 2, -2);
+    test("", 0, 1, "abcde", 0, 4, -4);
+    test("", 0, 1, "abcde", 0, 5, -5);
+    test("", 0, 1, "abcde", 0, 6, -5);
+    test("", 0, 1, "abcde", 1, 0, 0);
+    test("", 0, 1, "abcde", 1, 1, -1);
+    test("", 0, 1, "abcde", 1, 2, -2);
+    test("", 0, 1, "abcde", 1, 3, -3);
+    test("", 0, 1, "abcde", 1, 4, -4);
+    test("", 0, 1, "abcde", 1, 5, -4);
+    test("", 0, 1, "abcde", 2, 0, 0);
+    test("", 0, 1, "abcde", 2, 1, -1);
+    test("", 0, 1, "abcde", 2, 2, -2);
+    test("", 0, 1, "abcde", 2, 3, -3);
+    test("", 0, 1, "abcde", 2, 4, -3);
+    test("", 0, 1, "abcde", 4, 0, 0);
+    test("", 0, 1, "abcde", 4, 1, -1);
+    test("", 0, 1, "abcde", 4, 2, -1);
+    test("", 0, 1, "abcde", 5, 0, 0);
+    test("", 0, 1, "abcde", 5, 1, 0);
+    test("", 0, 1, "abcde", 6, 0, 0);
+}
+
+void test1()
+{
+    test("", 0, 1, "abcdefghij", 0, 0, 0);
+    test("", 0, 1, "abcdefghij", 0, 1, -1);
+    test("", 0, 1, "abcdefghij", 0, 5, -5);
+    test("", 0, 1, "abcdefghij", 0, 9, -9);
+    test("", 0, 1, "abcdefghij", 0, 10, -10);
+    test("", 0, 1, "abcdefghij", 0, 11, -10);
+    test("", 0, 1, "abcdefghij", 1, 0, 0);
+    test("", 0, 1, "abcdefghij", 1, 1, -1);
+    test("", 0, 1, "abcdefghij", 1, 4, -4);
+    test("", 0, 1, "abcdefghij", 1, 8, -8);
+    test("", 0, 1, "abcdefghij", 1, 9, -9);
+    test("", 0, 1, "abcdefghij", 1, 10, -9);
+    test("", 0, 1, "abcdefghij", 5, 0, 0);
+    test("", 0, 1, "abcdefghij", 5, 1, -1);
+    test("", 0, 1, "abcdefghij", 5, 2, -2);
+    test("", 0, 1, "abcdefghij", 5, 4, -4);
+    test("", 0, 1, "abcdefghij", 5, 5, -5);
+    test("", 0, 1, "abcdefghij", 5, 6, -5);
+    test("", 0, 1, "abcdefghij", 9, 0, 0);
+    test("", 0, 1, "abcdefghij", 9, 1, -1);
+    test("", 0, 1, "abcdefghij", 9, 2, -1);
+    test("", 0, 1, "abcdefghij", 10, 0, 0);
+    test("", 0, 1, "abcdefghij", 10, 1, 0);
+    test("", 0, 1, "abcdefghij", 11, 0, 0);
+    test("", 0, 1, "abcdefghijklmnopqrst", 0, 0, 0);
+    test("", 0, 1, "abcdefghijklmnopqrst", 0, 1, -1);
+    test("", 0, 1, "abcdefghijklmnopqrst", 0, 10, -10);
+    test("", 0, 1, "abcdefghijklmnopqrst", 0, 19, -19);
+    test("", 0, 1, "abcdefghijklmnopqrst", 0, 20, -20);
+    test("", 0, 1, "abcdefghijklmnopqrst", 0, 21, -20);
+    test("", 0, 1, "abcdefghijklmnopqrst", 1, 0, 0);
+    test("", 0, 1, "abcdefghijklmnopqrst", 1, 1, -1);
+    test("", 0, 1, "abcdefghijklmnopqrst", 1, 9, -9);
+    test("", 0, 1, "abcdefghijklmnopqrst", 1, 18, -18);
+    test("", 0, 1, "abcdefghijklmnopqrst", 1, 19, -19);
+    test("", 0, 1, "abcdefghijklmnopqrst", 1, 20, -19);
+    test("", 0, 1, "abcdefghijklmnopqrst", 10, 0, 0);
+    test("", 0, 1, "abcdefghijklmnopqrst", 10, 1, -1);
+    test("", 0, 1, "abcdefghijklmnopqrst", 10, 5, -5);
+    test("", 0, 1, "abcdefghijklmnopqrst", 10, 9, -9);
+    test("", 0, 1, "abcdefghijklmnopqrst", 10, 10, -10);
+    test("", 0, 1, "abcdefghijklmnopqrst", 10, 11, -10);
+    test("", 0, 1, "abcdefghijklmnopqrst", 19, 0, 0);
+    test("", 0, 1, "abcdefghijklmnopqrst", 19, 1, -1);
+    test("", 0, 1, "abcdefghijklmnopqrst", 19, 2, -1);
+    test("", 0, 1, "abcdefghijklmnopqrst", 20, 0, 0);
+    test("", 0, 1, "abcdefghijklmnopqrst", 20, 1, 0);
+    test("", 0, 1, "abcdefghijklmnopqrst", 21, 0, 0);
+    test("", 1, 0, "", 0, 0, 0);
+    test("", 1, 0, "", 0, 1, 0);
+    test("", 1, 0, "", 1, 0, 0);
+    test("", 1, 0, "abcde", 0, 0, 0);
+    test("", 1, 0, "abcde", 0, 1, 0);
+    test("", 1, 0, "abcde", 0, 2, 0);
+    test("", 1, 0, "abcde", 0, 4, 0);
+    test("", 1, 0, "abcde", 0, 5, 0);
+    test("", 1, 0, "abcde", 0, 6, 0);
+    test("", 1, 0, "abcde", 1, 0, 0);
+    test("", 1, 0, "abcde", 1, 1, 0);
+    test("", 1, 0, "abcde", 1, 2, 0);
+    test("", 1, 0, "abcde", 1, 3, 0);
+    test("", 1, 0, "abcde", 1, 4, 0);
+    test("", 1, 0, "abcde", 1, 5, 0);
+    test("", 1, 0, "abcde", 2, 0, 0);
+    test("", 1, 0, "abcde", 2, 1, 0);
+    test("", 1, 0, "abcde", 2, 2, 0);
+    test("", 1, 0, "abcde", 2, 3, 0);
+    test("", 1, 0, "abcde", 2, 4, 0);
+    test("", 1, 0, "abcde", 4, 0, 0);
+    test("", 1, 0, "abcde", 4, 1, 0);
+    test("", 1, 0, "abcde", 4, 2, 0);
+    test("", 1, 0, "abcde", 5, 0, 0);
+    test("", 1, 0, "abcde", 5, 1, 0);
+    test("", 1, 0, "abcde", 6, 0, 0);
+    test("", 1, 0, "abcdefghij", 0, 0, 0);
+    test("", 1, 0, "abcdefghij", 0, 1, 0);
+    test("", 1, 0, "abcdefghij", 0, 5, 0);
+    test("", 1, 0, "abcdefghij", 0, 9, 0);
+    test("", 1, 0, "abcdefghij", 0, 10, 0);
+    test("", 1, 0, "abcdefghij", 0, 11, 0);
+    test("", 1, 0, "abcdefghij", 1, 0, 0);
+    test("", 1, 0, "abcdefghij", 1, 1, 0);
+    test("", 1, 0, "abcdefghij", 1, 4, 0);
+    test("", 1, 0, "abcdefghij", 1, 8, 0);
+    test("", 1, 0, "abcdefghij", 1, 9, 0);
+    test("", 1, 0, "abcdefghij", 1, 10, 0);
+    test("", 1, 0, "abcdefghij", 5, 0, 0);
+    test("", 1, 0, "abcdefghij", 5, 1, 0);
+    test("", 1, 0, "abcdefghij", 5, 2, 0);
+    test("", 1, 0, "abcdefghij", 5, 4, 0);
+    test("", 1, 0, "abcdefghij", 5, 5, 0);
+    test("", 1, 0, "abcdefghij", 5, 6, 0);
+    test("", 1, 0, "abcdefghij", 9, 0, 0);
+    test("", 1, 0, "abcdefghij", 9, 1, 0);
+    test("", 1, 0, "abcdefghij", 9, 2, 0);
+    test("", 1, 0, "abcdefghij", 10, 0, 0);
+    test("", 1, 0, "abcdefghij", 10, 1, 0);
+    test("", 1, 0, "abcdefghij", 11, 0, 0);
+    test("", 1, 0, "abcdefghijklmnopqrst", 0, 0, 0);
+    test("", 1, 0, "abcdefghijklmnopqrst", 0, 1, 0);
+}
+
+void test2()
+{
+    test("", 1, 0, "abcdefghijklmnopqrst", 0, 10, 0);
+    test("", 1, 0, "abcdefghijklmnopqrst", 0, 19, 0);
+    test("", 1, 0, "abcdefghijklmnopqrst", 0, 20, 0);
+    test("", 1, 0, "abcdefghijklmnopqrst", 0, 21, 0);
+    test("", 1, 0, "abcdefghijklmnopqrst", 1, 0, 0);
+    test("", 1, 0, "abcdefghijklmnopqrst", 1, 1, 0);
+    test("", 1, 0, "abcdefghijklmnopqrst", 1, 9, 0);
+    test("", 1, 0, "abcdefghijklmnopqrst", 1, 18, 0);
+    test("", 1, 0, "abcdefghijklmnopqrst", 1, 19, 0);
+    test("", 1, 0, "abcdefghijklmnopqrst", 1, 20, 0);
+    test("", 1, 0, "abcdefghijklmnopqrst", 10, 0, 0);
+    test("", 1, 0, "abcdefghijklmnopqrst", 10, 1, 0);
+    test("", 1, 0, "abcdefghijklmnopqrst", 10, 5, 0);
+    test("", 1, 0, "abcdefghijklmnopqrst", 10, 9, 0);
+    test("", 1, 0, "abcdefghijklmnopqrst", 10, 10, 0);
+    test("", 1, 0, "abcdefghijklmnopqrst", 10, 11, 0);
+    test("", 1, 0, "abcdefghijklmnopqrst", 19, 0, 0);
+    test("", 1, 0, "abcdefghijklmnopqrst", 19, 1, 0);
+    test("", 1, 0, "abcdefghijklmnopqrst", 19, 2, 0);
+    test("", 1, 0, "abcdefghijklmnopqrst", 20, 0, 0);
+    test("", 1, 0, "abcdefghijklmnopqrst", 20, 1, 0);
+    test("", 1, 0, "abcdefghijklmnopqrst", 21, 0, 0);
+    test("abcde", 0, 0, "", 0, 0, 0);
+    test("abcde", 0, 0, "", 0, 1, 0);
+    test("abcde", 0, 0, "", 1, 0, 0);
+    test("abcde", 0, 0, "abcde", 0, 0, 0);
+    test("abcde", 0, 0, "abcde", 0, 1, -1);
+    test("abcde", 0, 0, "abcde", 0, 2, -2);
+    test("abcde", 0, 0, "abcde", 0, 4, -4);
+    test("abcde", 0, 0, "abcde", 0, 5, -5);
+    test("abcde", 0, 0, "abcde", 0, 6, -5);
+    test("abcde", 0, 0, "abcde", 1, 0, 0);
+    test("abcde", 0, 0, "abcde", 1, 1, -1);
+    test("abcde", 0, 0, "abcde", 1, 2, -2);
+    test("abcde", 0, 0, "abcde", 1, 3, -3);
+    test("abcde", 0, 0, "abcde", 1, 4, -4);
+    test("abcde", 0, 0, "abcde", 1, 5, -4);
+    test("abcde", 0, 0, "abcde", 2, 0, 0);
+    test("abcde", 0, 0, "abcde", 2, 1, -1);
+    test("abcde", 0, 0, "abcde", 2, 2, -2);
+    test("abcde", 0, 0, "abcde", 2, 3, -3);
+    test("abcde", 0, 0, "abcde", 2, 4, -3);
+    test("abcde", 0, 0, "abcde", 4, 0, 0);
+    test("abcde", 0, 0, "abcde", 4, 1, -1);
+    test("abcde", 0, 0, "abcde", 4, 2, -1);
+    test("abcde", 0, 0, "abcde", 5, 0, 0);
+    test("abcde", 0, 0, "abcde", 5, 1, 0);
+    test("abcde", 0, 0, "abcde", 6, 0, 0);
+    test("abcde", 0, 0, "abcdefghij", 0, 0, 0);
+    test("abcde", 0, 0, "abcdefghij", 0, 1, -1);
+    test("abcde", 0, 0, "abcdefghij", 0, 5, -5);
+    test("abcde", 0, 0, "abcdefghij", 0, 9, -9);
+    test("abcde", 0, 0, "abcdefghij", 0, 10, -10);
+    test("abcde", 0, 0, "abcdefghij", 0, 11, -10);
+    test("abcde", 0, 0, "abcdefghij", 1, 0, 0);
+    test("abcde", 0, 0, "abcdefghij", 1, 1, -1);
+    test("abcde", 0, 0, "abcdefghij", 1, 4, -4);
+    test("abcde", 0, 0, "abcdefghij", 1, 8, -8);
+    test("abcde", 0, 0, "abcdefghij", 1, 9, -9);
+    test("abcde", 0, 0, "abcdefghij", 1, 10, -9);
+    test("abcde", 0, 0, "abcdefghij", 5, 0, 0);
+    test("abcde", 0, 0, "abcdefghij", 5, 1, -1);
+    test("abcde", 0, 0, "abcdefghij", 5, 2, -2);
+    test("abcde", 0, 0, "abcdefghij", 5, 4, -4);
+    test("abcde", 0, 0, "abcdefghij", 5, 5, -5);
+    test("abcde", 0, 0, "abcdefghij", 5, 6, -5);
+    test("abcde", 0, 0, "abcdefghij", 9, 0, 0);
+    test("abcde", 0, 0, "abcdefghij", 9, 1, -1);
+    test("abcde", 0, 0, "abcdefghij", 9, 2, -1);
+    test("abcde", 0, 0, "abcdefghij", 10, 0, 0);
+    test("abcde", 0, 0, "abcdefghij", 10, 1, 0);
+    test("abcde", 0, 0, "abcdefghij", 11, 0, 0);
+    test("abcde", 0, 0, "abcdefghijklmnopqrst", 0, 0, 0);
+    test("abcde", 0, 0, "abcdefghijklmnopqrst", 0, 1, -1);
+    test("abcde", 0, 0, "abcdefghijklmnopqrst", 0, 10, -10);
+    test("abcde", 0, 0, "abcdefghijklmnopqrst", 0, 19, -19);
+    test("abcde", 0, 0, "abcdefghijklmnopqrst", 0, 20, -20);
+    test("abcde", 0, 0, "abcdefghijklmnopqrst", 0, 21, -20);
+    test("abcde", 0, 0, "abcdefghijklmnopqrst", 1, 0, 0);
+    test("abcde", 0, 0, "abcdefghijklmnopqrst", 1, 1, -1);
+    test("abcde", 0, 0, "abcdefghijklmnopqrst", 1, 9, -9);
+    test("abcde", 0, 0, "abcdefghijklmnopqrst", 1, 18, -18);
+    test("abcde", 0, 0, "abcdefghijklmnopqrst", 1, 19, -19);
+    test("abcde", 0, 0, "abcdefghijklmnopqrst", 1, 20, -19);
+    test("abcde", 0, 0, "abcdefghijklmnopqrst", 10, 0, 0);
+    test("abcde", 0, 0, "abcdefghijklmnopqrst", 10, 1, -1);
+    test("abcde", 0, 0, "abcdefghijklmnopqrst", 10, 5, -5);
+    test("abcde", 0, 0, "abcdefghijklmnopqrst", 10, 9, -9);
+    test("abcde", 0, 0, "abcdefghijklmnopqrst", 10, 10, -10);
+    test("abcde", 0, 0, "abcdefghijklmnopqrst", 10, 11, -10);
+    test("abcde", 0, 0, "abcdefghijklmnopqrst", 19, 0, 0);
+    test("abcde", 0, 0, "abcdefghijklmnopqrst", 19, 1, -1);
+    test("abcde", 0, 0, "abcdefghijklmnopqrst", 19, 2, -1);
+    test("abcde", 0, 0, "abcdefghijklmnopqrst", 20, 0, 0);
+    test("abcde", 0, 0, "abcdefghijklmnopqrst", 20, 1, 0);
+    test("abcde", 0, 0, "abcdefghijklmnopqrst", 21, 0, 0);
+    test("abcde", 0, 1, "", 0, 0, 1);
+    test("abcde", 0, 1, "", 0, 1, 1);
+    test("abcde", 0, 1, "", 1, 0, 0);
+    test("abcde", 0, 1, "abcde", 0, 0, 1);
+}
+
+void test3()
+{
+    test("abcde", 0, 1, "abcde", 0, 1, 0);
+    test("abcde", 0, 1, "abcde", 0, 2, -1);
+    test("abcde", 0, 1, "abcde", 0, 4, -3);
+    test("abcde", 0, 1, "abcde", 0, 5, -4);
+    test("abcde", 0, 1, "abcde", 0, 6, -4);
+    test("abcde", 0, 1, "abcde", 1, 0, 1);
+    test("abcde", 0, 1, "abcde", 1, 1, -1);
+    test("abcde", 0, 1, "abcde", 1, 2, -1);
+    test("abcde", 0, 1, "abcde", 1, 3, -1);
+    test("abcde", 0, 1, "abcde", 1, 4, -1);
+    test("abcde", 0, 1, "abcde", 1, 5, -1);
+    test("abcde", 0, 1, "abcde", 2, 0, 1);
+    test("abcde", 0, 1, "abcde", 2, 1, -2);
+    test("abcde", 0, 1, "abcde", 2, 2, -2);
+    test("abcde", 0, 1, "abcde", 2, 3, -2);
+    test("abcde", 0, 1, "abcde", 2, 4, -2);
+    test("abcde", 0, 1, "abcde", 4, 0, 1);
+    test("abcde", 0, 1, "abcde", 4, 1, -4);
+    test("abcde", 0, 1, "abcde", 4, 2, -4);
+    test("abcde", 0, 1, "abcde", 5, 0, 1);
+    test("abcde", 0, 1, "abcde", 5, 1, 1);
+    test("abcde", 0, 1, "abcde", 6, 0, 0);
+    test("abcde", 0, 1, "abcdefghij", 0, 0, 1);
+    test("abcde", 0, 1, "abcdefghij", 0, 1, 0);
+    test("abcde", 0, 1, "abcdefghij", 0, 5, -4);
+    test("abcde", 0, 1, "abcdefghij", 0, 9, -8);
+    test("abcde", 0, 1, "abcdefghij", 0, 10, -9);
+    test("abcde", 0, 1, "abcdefghij", 0, 11, -9);
+    test("abcde", 0, 1, "abcdefghij", 1, 0, 1);
+    test("abcde", 0, 1, "abcdefghij", 1, 1, -1);
+    test("abcde", 0, 1, "abcdefghij", 1, 4, -1);
+    test("abcde", 0, 1, "abcdefghij", 1, 8, -1);
+    test("abcde", 0, 1, "abcdefghij", 1, 9, -1);
+    test("abcde", 0, 1, "abcdefghij", 1, 10, -1);
+    test("abcde", 0, 1, "abcdefghij", 5, 0, 1);
+    test("abcde", 0, 1, "abcdefghij", 5, 1, -5);
+    test("abcde", 0, 1, "abcdefghij", 5, 2, -5);
+    test("abcde", 0, 1, "abcdefghij", 5, 4, -5);
+    test("abcde", 0, 1, "abcdefghij", 5, 5, -5);
+    test("abcde", 0, 1, "abcdefghij", 5, 6, -5);
+    test("abcde", 0, 1, "abcdefghij", 9, 0, 1);
+    test("abcde", 0, 1, "abcdefghij", 9, 1, -9);
+    test("abcde", 0, 1, "abcdefghij", 9, 2, -9);
+    test("abcde", 0, 1, "abcdefghij", 10, 0, 1);
+    test("abcde", 0, 1, "abcdefghij", 10, 1, 1);
+    test("abcde", 0, 1, "abcdefghij", 11, 0, 0);
+    test("abcde", 0, 1, "abcdefghijklmnopqrst", 0, 0, 1);
+    test("abcde", 0, 1, "abcdefghijklmnopqrst", 0, 1, 0);
+    test("abcde", 0, 1, "abcdefghijklmnopqrst", 0, 10, -9);
+    test("abcde", 0, 1, "abcdefghijklmnopqrst", 0, 19, -18);
+    test("abcde", 0, 1, "abcdefghijklmnopqrst", 0, 20, -19);
+    test("abcde", 0, 1, "abcdefghijklmnopqrst", 0, 21, -19);
+    test("abcde", 0, 1, "abcdefghijklmnopqrst", 1, 0, 1);
+    test("abcde", 0, 1, "abcdefghijklmnopqrst", 1, 1, -1);
+    test("abcde", 0, 1, "abcdefghijklmnopqrst", 1, 9, -1);
+    test("abcde", 0, 1, "abcdefghijklmnopqrst", 1, 18, -1);
+    test("abcde", 0, 1, "abcdefghijklmnopqrst", 1, 19, -1);
+    test("abcde", 0, 1, "abcdefghijklmnopqrst", 1, 20, -1);
+    test("abcde", 0, 1, "abcdefghijklmnopqrst", 10, 0, 1);
+    test("abcde", 0, 1, "abcdefghijklmnopqrst", 10, 1, -10);
+    test("abcde", 0, 1, "abcdefghijklmnopqrst", 10, 5, -10);
+    test("abcde", 0, 1, "abcdefghijklmnopqrst", 10, 9, -10);
+    test("abcde", 0, 1, "abcdefghijklmnopqrst", 10, 10, -10);
+    test("abcde", 0, 1, "abcdefghijklmnopqrst", 10, 11, -10);
+    test("abcde", 0, 1, "abcdefghijklmnopqrst", 19, 0, 1);
+    test("abcde", 0, 1, "abcdefghijklmnopqrst", 19, 1, -19);
+    test("abcde", 0, 1, "abcdefghijklmnopqrst", 19, 2, -19);
+    test("abcde", 0, 1, "abcdefghijklmnopqrst", 20, 0, 1);
+    test("abcde", 0, 1, "abcdefghijklmnopqrst", 20, 1, 1);
+    test("abcde", 0, 1, "abcdefghijklmnopqrst", 21, 0, 0);
+    test("abcde", 0, 2, "", 0, 0, 2);
+    test("abcde", 0, 2, "", 0, 1, 2);
+    test("abcde", 0, 2, "", 1, 0, 0);
+    test("abcde", 0, 2, "abcde", 0, 0, 2);
+    test("abcde", 0, 2, "abcde", 0, 1, 1);
+    test("abcde", 0, 2, "abcde", 0, 2, 0);
+    test("abcde", 0, 2, "abcde", 0, 4, -2);
+    test("abcde", 0, 2, "abcde", 0, 5, -3);
+    test("abcde", 0, 2, "abcde", 0, 6, -3);
+    test("abcde", 0, 2, "abcde", 1, 0, 2);
+    test("abcde", 0, 2, "abcde", 1, 1, -1);
+    test("abcde", 0, 2, "abcde", 1, 2, -1);
+    test("abcde", 0, 2, "abcde", 1, 3, -1);
+    test("abcde", 0, 2, "abcde", 1, 4, -1);
+    test("abcde", 0, 2, "abcde", 1, 5, -1);
+    test("abcde", 0, 2, "abcde", 2, 0, 2);
+    test("abcde", 0, 2, "abcde", 2, 1, -2);
+    test("abcde", 0, 2, "abcde", 2, 2, -2);
+    test("abcde", 0, 2, "abcde", 2, 3, -2);
+    test("abcde", 0, 2, "abcde", 2, 4, -2);
+    test("abcde", 0, 2, "abcde", 4, 0, 2);
+    test("abcde", 0, 2, "abcde", 4, 1, -4);
+    test("abcde", 0, 2, "abcde", 4, 2, -4);
+    test("abcde", 0, 2, "abcde", 5, 0, 2);
+    test("abcde", 0, 2, "abcde", 5, 1, 2);
+    test("abcde", 0, 2, "abcde", 6, 0, 0);
+    test("abcde", 0, 2, "abcdefghij", 0, 0, 2);
+    test("abcde", 0, 2, "abcdefghij", 0, 1, 1);
+    test("abcde", 0, 2, "abcdefghij", 0, 5, -3);
+    test("abcde", 0, 2, "abcdefghij", 0, 9, -7);
+}
+
+void test4()
+{
+    test("abcde", 0, 2, "abcdefghij", 0, 10, -8);
+    test("abcde", 0, 2, "abcdefghij", 0, 11, -8);
+    test("abcde", 0, 2, "abcdefghij", 1, 0, 2);
+    test("abcde", 0, 2, "abcdefghij", 1, 1, -1);
+    test("abcde", 0, 2, "abcdefghij", 1, 4, -1);
+    test("abcde", 0, 2, "abcdefghij", 1, 8, -1);
+    test("abcde", 0, 2, "abcdefghij", 1, 9, -1);
+    test("abcde", 0, 2, "abcdefghij", 1, 10, -1);
+    test("abcde", 0, 2, "abcdefghij", 5, 0, 2);
+    test("abcde", 0, 2, "abcdefghij", 5, 1, -5);
+    test("abcde", 0, 2, "abcdefghij", 5, 2, -5);
+    test("abcde", 0, 2, "abcdefghij", 5, 4, -5);
+    test("abcde", 0, 2, "abcdefghij", 5, 5, -5);
+    test("abcde", 0, 2, "abcdefghij", 5, 6, -5);
+    test("abcde", 0, 2, "abcdefghij", 9, 0, 2);
+    test("abcde", 0, 2, "abcdefghij", 9, 1, -9);
+    test("abcde", 0, 2, "abcdefghij", 9, 2, -9);
+    test("abcde", 0, 2, "abcdefghij", 10, 0, 2);
+    test("abcde", 0, 2, "abcdefghij", 10, 1, 2);
+    test("abcde", 0, 2, "abcdefghij", 11, 0, 0);
+    test("abcde", 0, 2, "abcdefghijklmnopqrst", 0, 0, 2);
+    test("abcde", 0, 2, "abcdefghijklmnopqrst", 0, 1, 1);
+    test("abcde", 0, 2, "abcdefghijklmnopqrst", 0, 10, -8);
+    test("abcde", 0, 2, "abcdefghijklmnopqrst", 0, 19, -17);
+    test("abcde", 0, 2, "abcdefghijklmnopqrst", 0, 20, -18);
+    test("abcde", 0, 2, "abcdefghijklmnopqrst", 0, 21, -18);
+    test("abcde", 0, 2, "abcdefghijklmnopqrst", 1, 0, 2);
+    test("abcde", 0, 2, "abcdefghijklmnopqrst", 1, 1, -1);
+    test("abcde", 0, 2, "abcdefghijklmnopqrst", 1, 9, -1);
+    test("abcde", 0, 2, "abcdefghijklmnopqrst", 1, 18, -1);
+    test("abcde", 0, 2, "abcdefghijklmnopqrst", 1, 19, -1);
+    test("abcde", 0, 2, "abcdefghijklmnopqrst", 1, 20, -1);
+    test("abcde", 0, 2, "abcdefghijklmnopqrst", 10, 0, 2);
+    test("abcde", 0, 2, "abcdefghijklmnopqrst", 10, 1, -10);
+    test("abcde", 0, 2, "abcdefghijklmnopqrst", 10, 5, -10);
+    test("abcde", 0, 2, "abcdefghijklmnopqrst", 10, 9, -10);
+    test("abcde", 0, 2, "abcdefghijklmnopqrst", 10, 10, -10);
+    test("abcde", 0, 2, "abcdefghijklmnopqrst", 10, 11, -10);
+    test("abcde", 0, 2, "abcdefghijklmnopqrst", 19, 0, 2);
+    test("abcde", 0, 2, "abcdefghijklmnopqrst", 19, 1, -19);
+    test("abcde", 0, 2, "abcdefghijklmnopqrst", 19, 2, -19);
+    test("abcde", 0, 2, "abcdefghijklmnopqrst", 20, 0, 2);
+    test("abcde", 0, 2, "abcdefghijklmnopqrst", 20, 1, 2);
+    test("abcde", 0, 2, "abcdefghijklmnopqrst", 21, 0, 0);
+    test("abcde", 0, 4, "", 0, 0, 4);
+    test("abcde", 0, 4, "", 0, 1, 4);
+    test("abcde", 0, 4, "", 1, 0, 0);
+    test("abcde", 0, 4, "abcde", 0, 0, 4);
+    test("abcde", 0, 4, "abcde", 0, 1, 3);
+    test("abcde", 0, 4, "abcde", 0, 2, 2);
+    test("abcde", 0, 4, "abcde", 0, 4, 0);
+    test("abcde", 0, 4, "abcde", 0, 5, -1);
+    test("abcde", 0, 4, "abcde", 0, 6, -1);
+    test("abcde", 0, 4, "abcde", 1, 0, 4);
+    test("abcde", 0, 4, "abcde", 1, 1, -1);
+    test("abcde", 0, 4, "abcde", 1, 2, -1);
+    test("abcde", 0, 4, "abcde", 1, 3, -1);
+    test("abcde", 0, 4, "abcde", 1, 4, -1);
+    test("abcde", 0, 4, "abcde", 1, 5, -1);
+    test("abcde", 0, 4, "abcde", 2, 0, 4);
+    test("abcde", 0, 4, "abcde", 2, 1, -2);
+    test("abcde", 0, 4, "abcde", 2, 2, -2);
+    test("abcde", 0, 4, "abcde", 2, 3, -2);
+    test("abcde", 0, 4, "abcde", 2, 4, -2);
+    test("abcde", 0, 4, "abcde", 4, 0, 4);
+    test("abcde", 0, 4, "abcde", 4, 1, -4);
+    test("abcde", 0, 4, "abcde", 4, 2, -4);
+    test("abcde", 0, 4, "abcde", 5, 0, 4);
+    test("abcde", 0, 4, "abcde", 5, 1, 4);
+    test("abcde", 0, 4, "abcde", 6, 0, 0);
+    test("abcde", 0, 4, "abcdefghij", 0, 0, 4);
+    test("abcde", 0, 4, "abcdefghij", 0, 1, 3);
+    test("abcde", 0, 4, "abcdefghij", 0, 5, -1);
+    test("abcde", 0, 4, "abcdefghij", 0, 9, -5);
+    test("abcde", 0, 4, "abcdefghij", 0, 10, -6);
+    test("abcde", 0, 4, "abcdefghij", 0, 11, -6);
+    test("abcde", 0, 4, "abcdefghij", 1, 0, 4);
+    test("abcde", 0, 4, "abcdefghij", 1, 1, -1);
+    test("abcde", 0, 4, "abcdefghij", 1, 4, -1);
+    test("abcde", 0, 4, "abcdefghij", 1, 8, -1);
+    test("abcde", 0, 4, "abcdefghij", 1, 9, -1);
+    test("abcde", 0, 4, "abcdefghij", 1, 10, -1);
+    test("abcde", 0, 4, "abcdefghij", 5, 0, 4);
+    test("abcde", 0, 4, "abcdefghij", 5, 1, -5);
+    test("abcde", 0, 4, "abcdefghij", 5, 2, -5);
+    test("abcde", 0, 4, "abcdefghij", 5, 4, -5);
+    test("abcde", 0, 4, "abcdefghij", 5, 5, -5);
+    test("abcde", 0, 4, "abcdefghij", 5, 6, -5);
+    test("abcde", 0, 4, "abcdefghij", 9, 0, 4);
+    test("abcde", 0, 4, "abcdefghij", 9, 1, -9);
+    test("abcde", 0, 4, "abcdefghij", 9, 2, -9);
+    test("abcde", 0, 4, "abcdefghij", 10, 0, 4);
+    test("abcde", 0, 4, "abcdefghij", 10, 1, 4);
+    test("abcde", 0, 4, "abcdefghij", 11, 0, 0);
+    test("abcde", 0, 4, "abcdefghijklmnopqrst", 0, 0, 4);
+    test("abcde", 0, 4, "abcdefghijklmnopqrst", 0, 1, 3);
+    test("abcde", 0, 4, "abcdefghijklmnopqrst", 0, 10, -6);
+    test("abcde", 0, 4, "abcdefghijklmnopqrst", 0, 19, -15);
+    test("abcde", 0, 4, "abcdefghijklmnopqrst", 0, 20, -16);
+    test("abcde", 0, 4, "abcdefghijklmnopqrst", 0, 21, -16);
+}
+
+void test5()
+{
+    test("abcde", 0, 4, "abcdefghijklmnopqrst", 1, 0, 4);
+    test("abcde", 0, 4, "abcdefghijklmnopqrst", 1, 1, -1);
+    test("abcde", 0, 4, "abcdefghijklmnopqrst", 1, 9, -1);
+    test("abcde", 0, 4, "abcdefghijklmnopqrst", 1, 18, -1);
+    test("abcde", 0, 4, "abcdefghijklmnopqrst", 1, 19, -1);
+    test("abcde", 0, 4, "abcdefghijklmnopqrst", 1, 20, -1);
+    test("abcde", 0, 4, "abcdefghijklmnopqrst", 10, 0, 4);
+    test("abcde", 0, 4, "abcdefghijklmnopqrst", 10, 1, -10);
+    test("abcde", 0, 4, "abcdefghijklmnopqrst", 10, 5, -10);
+    test("abcde", 0, 4, "abcdefghijklmnopqrst", 10, 9, -10);
+    test("abcde", 0, 4, "abcdefghijklmnopqrst", 10, 10, -10);
+    test("abcde", 0, 4, "abcdefghijklmnopqrst", 10, 11, -10);
+    test("abcde", 0, 4, "abcdefghijklmnopqrst", 19, 0, 4);
+    test("abcde", 0, 4, "abcdefghijklmnopqrst", 19, 1, -19);
+    test("abcde", 0, 4, "abcdefghijklmnopqrst", 19, 2, -19);
+    test("abcde", 0, 4, "abcdefghijklmnopqrst", 20, 0, 4);
+    test("abcde", 0, 4, "abcdefghijklmnopqrst", 20, 1, 4);
+    test("abcde", 0, 4, "abcdefghijklmnopqrst", 21, 0, 0);
+    test("abcde", 0, 5, "", 0, 0, 5);
+    test("abcde", 0, 5, "", 0, 1, 5);
+    test("abcde", 0, 5, "", 1, 0, 0);
+    test("abcde", 0, 5, "abcde", 0, 0, 5);
+    test("abcde", 0, 5, "abcde", 0, 1, 4);
+    test("abcde", 0, 5, "abcde", 0, 2, 3);
+    test("abcde", 0, 5, "abcde", 0, 4, 1);
+    test("abcde", 0, 5, "abcde", 0, 5, 0);
+    test("abcde", 0, 5, "abcde", 0, 6, 0);
+    test("abcde", 0, 5, "abcde", 1, 0, 5);
+    test("abcde", 0, 5, "abcde", 1, 1, -1);
+    test("abcde", 0, 5, "abcde", 1, 2, -1);
+    test("abcde", 0, 5, "abcde", 1, 3, -1);
+    test("abcde", 0, 5, "abcde", 1, 4, -1);
+    test("abcde", 0, 5, "abcde", 1, 5, -1);
+    test("abcde", 0, 5, "abcde", 2, 0, 5);
+    test("abcde", 0, 5, "abcde", 2, 1, -2);
+    test("abcde", 0, 5, "abcde", 2, 2, -2);
+    test("abcde", 0, 5, "abcde", 2, 3, -2);
+    test("abcde", 0, 5, "abcde", 2, 4, -2);
+    test("abcde", 0, 5, "abcde", 4, 0, 5);
+    test("abcde", 0, 5, "abcde", 4, 1, -4);
+    test("abcde", 0, 5, "abcde", 4, 2, -4);
+    test("abcde", 0, 5, "abcde", 5, 0, 5);
+    test("abcde", 0, 5, "abcde", 5, 1, 5);
+    test("abcde", 0, 5, "abcde", 6, 0, 0);
+    test("abcde", 0, 5, "abcdefghij", 0, 0, 5);
+    test("abcde", 0, 5, "abcdefghij", 0, 1, 4);
+    test("abcde", 0, 5, "abcdefghij", 0, 5, 0);
+    test("abcde", 0, 5, "abcdefghij", 0, 9, -4);
+    test("abcde", 0, 5, "abcdefghij", 0, 10, -5);
+    test("abcde", 0, 5, "abcdefghij", 0, 11, -5);
+    test("abcde", 0, 5, "abcdefghij", 1, 0, 5);
+    test("abcde", 0, 5, "abcdefghij", 1, 1, -1);
+    test("abcde", 0, 5, "abcdefghij", 1, 4, -1);
+    test("abcde", 0, 5, "abcdefghij", 1, 8, -1);
+    test("abcde", 0, 5, "abcdefghij", 1, 9, -1);
+    test("abcde", 0, 5, "abcdefghij", 1, 10, -1);
+    test("abcde", 0, 5, "abcdefghij", 5, 0, 5);
+    test("abcde", 0, 5, "abcdefghij", 5, 1, -5);
+    test("abcde", 0, 5, "abcdefghij", 5, 2, -5);
+    test("abcde", 0, 5, "abcdefghij", 5, 4, -5);
+    test("abcde", 0, 5, "abcdefghij", 5, 5, -5);
+    test("abcde", 0, 5, "abcdefghij", 5, 6, -5);
+    test("abcde", 0, 5, "abcdefghij", 9, 0, 5);
+    test("abcde", 0, 5, "abcdefghij", 9, 1, -9);
+    test("abcde", 0, 5, "abcdefghij", 9, 2, -9);
+    test("abcde", 0, 5, "abcdefghij", 10, 0, 5);
+    test("abcde", 0, 5, "abcdefghij", 10, 1, 5);
+    test("abcde", 0, 5, "abcdefghij", 11, 0, 0);
+    test("abcde", 0, 5, "abcdefghijklmnopqrst", 0, 0, 5);
+    test("abcde", 0, 5, "abcdefghijklmnopqrst", 0, 1, 4);
+    test("abcde", 0, 5, "abcdefghijklmnopqrst", 0, 10, -5);
+    test("abcde", 0, 5, "abcdefghijklmnopqrst", 0, 19, -14);
+    test("abcde", 0, 5, "abcdefghijklmnopqrst", 0, 20, -15);
+    test("abcde", 0, 5, "abcdefghijklmnopqrst", 0, 21, -15);
+    test("abcde", 0, 5, "abcdefghijklmnopqrst", 1, 0, 5);
+    test("abcde", 0, 5, "abcdefghijklmnopqrst", 1, 1, -1);
+    test("abcde", 0, 5, "abcdefghijklmnopqrst", 1, 9, -1);
+    test("abcde", 0, 5, "abcdefghijklmnopqrst", 1, 18, -1);
+    test("abcde", 0, 5, "abcdefghijklmnopqrst", 1, 19, -1);
+    test("abcde", 0, 5, "abcdefghijklmnopqrst", 1, 20, -1);
+    test("abcde", 0, 5, "abcdefghijklmnopqrst", 10, 0, 5);
+    test("abcde", 0, 5, "abcdefghijklmnopqrst", 10, 1, -10);
+    test("abcde", 0, 5, "abcdefghijklmnopqrst", 10, 5, -10);
+    test("abcde", 0, 5, "abcdefghijklmnopqrst", 10, 9, -10);
+    test("abcde", 0, 5, "abcdefghijklmnopqrst", 10, 10, -10);
+    test("abcde", 0, 5, "abcdefghijklmnopqrst", 10, 11, -10);
+    test("abcde", 0, 5, "abcdefghijklmnopqrst", 19, 0, 5);
+    test("abcde", 0, 5, "abcdefghijklmnopqrst", 19, 1, -19);
+    test("abcde", 0, 5, "abcdefghijklmnopqrst", 19, 2, -19);
+    test("abcde", 0, 5, "abcdefghijklmnopqrst", 20, 0, 5);
+    test("abcde", 0, 5, "abcdefghijklmnopqrst", 20, 1, 5);
+    test("abcde", 0, 5, "abcdefghijklmnopqrst", 21, 0, 0);
+    test("abcde", 0, 6, "", 0, 0, 5);
+    test("abcde", 0, 6, "", 0, 1, 5);
+    test("abcde", 0, 6, "", 1, 0, 0);
+    test("abcde", 0, 6, "abcde", 0, 0, 5);
+    test("abcde", 0, 6, "abcde", 0, 1, 4);
+    test("abcde", 0, 6, "abcde", 0, 2, 3);
+    test("abcde", 0, 6, "abcde", 0, 4, 1);
+    test("abcde", 0, 6, "abcde", 0, 5, 0);
+}
+
+void test6()
+{
+    test("abcde", 0, 6, "abcde", 0, 6, 0);
+    test("abcde", 0, 6, "abcde", 1, 0, 5);
+    test("abcde", 0, 6, "abcde", 1, 1, -1);
+    test("abcde", 0, 6, "abcde", 1, 2, -1);
+    test("abcde", 0, 6, "abcde", 1, 3, -1);
+    test("abcde", 0, 6, "abcde", 1, 4, -1);
+    test("abcde", 0, 6, "abcde", 1, 5, -1);
+    test("abcde", 0, 6, "abcde", 2, 0, 5);
+    test("abcde", 0, 6, "abcde", 2, 1, -2);
+    test("abcde", 0, 6, "abcde", 2, 2, -2);
+    test("abcde", 0, 6, "abcde", 2, 3, -2);
+    test("abcde", 0, 6, "abcde", 2, 4, -2);
+    test("abcde", 0, 6, "abcde", 4, 0, 5);
+    test("abcde", 0, 6, "abcde", 4, 1, -4);
+    test("abcde", 0, 6, "abcde", 4, 2, -4);
+    test("abcde", 0, 6, "abcde", 5, 0, 5);
+    test("abcde", 0, 6, "abcde", 5, 1, 5);
+    test("abcde", 0, 6, "abcde", 6, 0, 0);
+    test("abcde", 0, 6, "abcdefghij", 0, 0, 5);
+    test("abcde", 0, 6, "abcdefghij", 0, 1, 4);
+    test("abcde", 0, 6, "abcdefghij", 0, 5, 0);
+    test("abcde", 0, 6, "abcdefghij", 0, 9, -4);
+    test("abcde", 0, 6, "abcdefghij", 0, 10, -5);
+    test("abcde", 0, 6, "abcdefghij", 0, 11, -5);
+    test("abcde", 0, 6, "abcdefghij", 1, 0, 5);
+    test("abcde", 0, 6, "abcdefghij", 1, 1, -1);
+    test("abcde", 0, 6, "abcdefghij", 1, 4, -1);
+    test("abcde", 0, 6, "abcdefghij", 1, 8, -1);
+    test("abcde", 0, 6, "abcdefghij", 1, 9, -1);
+    test("abcde", 0, 6, "abcdefghij", 1, 10, -1);
+    test("abcde", 0, 6, "abcdefghij", 5, 0, 5);
+    test("abcde", 0, 6, "abcdefghij", 5, 1, -5);
+    test("abcde", 0, 6, "abcdefghij", 5, 2, -5);
+    test("abcde", 0, 6, "abcdefghij", 5, 4, -5);
+    test("abcde", 0, 6, "abcdefghij", 5, 5, -5);
+    test("abcde", 0, 6, "abcdefghij", 5, 6, -5);
+    test("abcde", 0, 6, "abcdefghij", 9, 0, 5);
+    test("abcde", 0, 6, "abcdefghij", 9, 1, -9);
+    test("abcde", 0, 6, "abcdefghij", 9, 2, -9);
+    test("abcde", 0, 6, "abcdefghij", 10, 0, 5);
+    test("abcde", 0, 6, "abcdefghij", 10, 1, 5);
+    test("abcde", 0, 6, "abcdefghij", 11, 0, 0);
+    test("abcde", 0, 6, "abcdefghijklmnopqrst", 0, 0, 5);
+    test("abcde", 0, 6, "abcdefghijklmnopqrst", 0, 1, 4);
+    test("abcde", 0, 6, "abcdefghijklmnopqrst", 0, 10, -5);
+    test("abcde", 0, 6, "abcdefghijklmnopqrst", 0, 19, -14);
+    test("abcde", 0, 6, "abcdefghijklmnopqrst", 0, 20, -15);
+    test("abcde", 0, 6, "abcdefghijklmnopqrst", 0, 21, -15);
+    test("abcde", 0, 6, "abcdefghijklmnopqrst", 1, 0, 5);
+    test("abcde", 0, 6, "abcdefghijklmnopqrst", 1, 1, -1);
+    test("abcde", 0, 6, "abcdefghijklmnopqrst", 1, 9, -1);
+    test("abcde", 0, 6, "abcdefghijklmnopqrst", 1, 18, -1);
+    test("abcde", 0, 6, "abcdefghijklmnopqrst", 1, 19, -1);
+    test("abcde", 0, 6, "abcdefghijklmnopqrst", 1, 20, -1);
+    test("abcde", 0, 6, "abcdefghijklmnopqrst", 10, 0, 5);
+    test("abcde", 0, 6, "abcdefghijklmnopqrst", 10, 1, -10);
+    test("abcde", 0, 6, "abcdefghijklmnopqrst", 10, 5, -10);
+    test("abcde", 0, 6, "abcdefghijklmnopqrst", 10, 9, -10);
+    test("abcde", 0, 6, "abcdefghijklmnopqrst", 10, 10, -10);
+    test("abcde", 0, 6, "abcdefghijklmnopqrst", 10, 11, -10);
+    test("abcde", 0, 6, "abcdefghijklmnopqrst", 19, 0, 5);
+    test("abcde", 0, 6, "abcdefghijklmnopqrst", 19, 1, -19);
+    test("abcde", 0, 6, "abcdefghijklmnopqrst", 19, 2, -19);
+    test("abcde", 0, 6, "abcdefghijklmnopqrst", 20, 0, 5);
+    test("abcde", 0, 6, "abcdefghijklmnopqrst", 20, 1, 5);
+    test("abcde", 0, 6, "abcdefghijklmnopqrst", 21, 0, 0);
+    test("abcde", 1, 0, "", 0, 0, 0);
+    test("abcde", 1, 0, "", 0, 1, 0);
+    test("abcde", 1, 0, "", 1, 0, 0);
+    test("abcde", 1, 0, "abcde", 0, 0, 0);
+    test("abcde", 1, 0, "abcde", 0, 1, -1);
+    test("abcde", 1, 0, "abcde", 0, 2, -2);
+    test("abcde", 1, 0, "abcde", 0, 4, -4);
+    test("abcde", 1, 0, "abcde", 0, 5, -5);
+    test("abcde", 1, 0, "abcde", 0, 6, -5);
+    test("abcde", 1, 0, "abcde", 1, 0, 0);
+    test("abcde", 1, 0, "abcde", 1, 1, -1);
+    test("abcde", 1, 0, "abcde", 1, 2, -2);
+    test("abcde", 1, 0, "abcde", 1, 3, -3);
+    test("abcde", 1, 0, "abcde", 1, 4, -4);
+    test("abcde", 1, 0, "abcde", 1, 5, -4);
+    test("abcde", 1, 0, "abcde", 2, 0, 0);
+    test("abcde", 1, 0, "abcde", 2, 1, -1);
+    test("abcde", 1, 0, "abcde", 2, 2, -2);
+    test("abcde", 1, 0, "abcde", 2, 3, -3);
+    test("abcde", 1, 0, "abcde", 2, 4, -3);
+    test("abcde", 1, 0, "abcde", 4, 0, 0);
+    test("abcde", 1, 0, "abcde", 4, 1, -1);
+    test("abcde", 1, 0, "abcde", 4, 2, -1);
+    test("abcde", 1, 0, "abcde", 5, 0, 0);
+    test("abcde", 1, 0, "abcde", 5, 1, 0);
+    test("abcde", 1, 0, "abcde", 6, 0, 0);
+    test("abcde", 1, 0, "abcdefghij", 0, 0, 0);
+    test("abcde", 1, 0, "abcdefghij", 0, 1, -1);
+    test("abcde", 1, 0, "abcdefghij", 0, 5, -5);
+    test("abcde", 1, 0, "abcdefghij", 0, 9, -9);
+    test("abcde", 1, 0, "abcdefghij", 0, 10, -10);
+    test("abcde", 1, 0, "abcdefghij", 0, 11, -10);
+    test("abcde", 1, 0, "abcdefghij", 1, 0, 0);
+    test("abcde", 1, 0, "abcdefghij", 1, 1, -1);
+}
+
+void test7()
+{
+    test("abcde", 1, 0, "abcdefghij", 1, 4, -4);
+    test("abcde", 1, 0, "abcdefghij", 1, 8, -8);
+    test("abcde", 1, 0, "abcdefghij", 1, 9, -9);
+    test("abcde", 1, 0, "abcdefghij", 1, 10, -9);
+    test("abcde", 1, 0, "abcdefghij", 5, 0, 0);
+    test("abcde", 1, 0, "abcdefghij", 5, 1, -1);
+    test("abcde", 1, 0, "abcdefghij", 5, 2, -2);
+    test("abcde", 1, 0, "abcdefghij", 5, 4, -4);
+    test("abcde", 1, 0, "abcdefghij", 5, 5, -5);
+    test("abcde", 1, 0, "abcdefghij", 5, 6, -5);
+    test("abcde", 1, 0, "abcdefghij", 9, 0, 0);
+    test("abcde", 1, 0, "abcdefghij", 9, 1, -1);
+    test("abcde", 1, 0, "abcdefghij", 9, 2, -1);
+    test("abcde", 1, 0, "abcdefghij", 10, 0, 0);
+    test("abcde", 1, 0, "abcdefghij", 10, 1, 0);
+    test("abcde", 1, 0, "abcdefghij", 11, 0, 0);
+    test("abcde", 1, 0, "abcdefghijklmnopqrst", 0, 0, 0);
+    test("abcde", 1, 0, "abcdefghijklmnopqrst", 0, 1, -1);
+    test("abcde", 1, 0, "abcdefghijklmnopqrst", 0, 10, -10);
+    test("abcde", 1, 0, "abcdefghijklmnopqrst", 0, 19, -19);
+    test("abcde", 1, 0, "abcdefghijklmnopqrst", 0, 20, -20);
+    test("abcde", 1, 0, "abcdefghijklmnopqrst", 0, 21, -20);
+    test("abcde", 1, 0, "abcdefghijklmnopqrst", 1, 0, 0);
+    test("abcde", 1, 0, "abcdefghijklmnopqrst", 1, 1, -1);
+    test("abcde", 1, 0, "abcdefghijklmnopqrst", 1, 9, -9);
+    test("abcde", 1, 0, "abcdefghijklmnopqrst", 1, 18, -18);
+    test("abcde", 1, 0, "abcdefghijklmnopqrst", 1, 19, -19);
+    test("abcde", 1, 0, "abcdefghijklmnopqrst", 1, 20, -19);
+    test("abcde", 1, 0, "abcdefghijklmnopqrst", 10, 0, 0);
+    test("abcde", 1, 0, "abcdefghijklmnopqrst", 10, 1, -1);
+    test("abcde", 1, 0, "abcdefghijklmnopqrst", 10, 5, -5);
+    test("abcde", 1, 0, "abcdefghijklmnopqrst", 10, 9, -9);
+    test("abcde", 1, 0, "abcdefghijklmnopqrst", 10, 10, -10);
+    test("abcde", 1, 0, "abcdefghijklmnopqrst", 10, 11, -10);
+    test("abcde", 1, 0, "abcdefghijklmnopqrst", 19, 0, 0);
+    test("abcde", 1, 0, "abcdefghijklmnopqrst", 19, 1, -1);
+    test("abcde", 1, 0, "abcdefghijklmnopqrst", 19, 2, -1);
+    test("abcde", 1, 0, "abcdefghijklmnopqrst", 20, 0, 0);
+    test("abcde", 1, 0, "abcdefghijklmnopqrst", 20, 1, 0);
+    test("abcde", 1, 0, "abcdefghijklmnopqrst", 21, 0, 0);
+    test("abcde", 1, 1, "", 0, 0, 1);
+    test("abcde", 1, 1, "", 0, 1, 1);
+    test("abcde", 1, 1, "", 1, 0, 0);
+    test("abcde", 1, 1, "abcde", 0, 0, 1);
+    test("abcde", 1, 1, "abcde", 0, 1, 1);
+    test("abcde", 1, 1, "abcde", 0, 2, 1);
+    test("abcde", 1, 1, "abcde", 0, 4, 1);
+    test("abcde", 1, 1, "abcde", 0, 5, 1);
+    test("abcde", 1, 1, "abcde", 0, 6, 1);
+    test("abcde", 1, 1, "abcde", 1, 0, 1);
+    test("abcde", 1, 1, "abcde", 1, 1, 0);
+    test("abcde", 1, 1, "abcde", 1, 2, -1);
+    test("abcde", 1, 1, "abcde", 1, 3, -2);
+    test("abcde", 1, 1, "abcde", 1, 4, -3);
+    test("abcde", 1, 1, "abcde", 1, 5, -3);
+    test("abcde", 1, 1, "abcde", 2, 0, 1);
+    test("abcde", 1, 1, "abcde", 2, 1, -1);
+    test("abcde", 1, 1, "abcde", 2, 2, -1);
+    test("abcde", 1, 1, "abcde", 2, 3, -1);
+    test("abcde", 1, 1, "abcde", 2, 4, -1);
+    test("abcde", 1, 1, "abcde", 4, 0, 1);
+    test("abcde", 1, 1, "abcde", 4, 1, -3);
+    test("abcde", 1, 1, "abcde", 4, 2, -3);
+    test("abcde", 1, 1, "abcde", 5, 0, 1);
+    test("abcde", 1, 1, "abcde", 5, 1, 1);
+    test("abcde", 1, 1, "abcde", 6, 0, 0);
+    test("abcde", 1, 1, "abcdefghij", 0, 0, 1);
+    test("abcde", 1, 1, "abcdefghij", 0, 1, 1);
+    test("abcde", 1, 1, "abcdefghij", 0, 5, 1);
+    test("abcde", 1, 1, "abcdefghij", 0, 9, 1);
+    test("abcde", 1, 1, "abcdefghij", 0, 10, 1);
+    test("abcde", 1, 1, "abcdefghij", 0, 11, 1);
+    test("abcde", 1, 1, "abcdefghij", 1, 0, 1);
+    test("abcde", 1, 1, "abcdefghij", 1, 1, 0);
+    test("abcde", 1, 1, "abcdefghij", 1, 4, -3);
+    test("abcde", 1, 1, "abcdefghij", 1, 8, -7);
+    test("abcde", 1, 1, "abcdefghij", 1, 9, -8);
+    test("abcde", 1, 1, "abcdefghij", 1, 10, -8);
+    test("abcde", 1, 1, "abcdefghij", 5, 0, 1);
+    test("abcde", 1, 1, "abcdefghij", 5, 1, -4);
+    test("abcde", 1, 1, "abcdefghij", 5, 2, -4);
+    test("abcde", 1, 1, "abcdefghij", 5, 4, -4);
+    test("abcde", 1, 1, "abcdefghij", 5, 5, -4);
+    test("abcde", 1, 1, "abcdefghij", 5, 6, -4);
+    test("abcde", 1, 1, "abcdefghij", 9, 0, 1);
+    test("abcde", 1, 1, "abcdefghij", 9, 1, -8);
+    test("abcde", 1, 1, "abcdefghij", 9, 2, -8);
+    test("abcde", 1, 1, "abcdefghij", 10, 0, 1);
+    test("abcde", 1, 1, "abcdefghij", 10, 1, 1);
+    test("abcde", 1, 1, "abcdefghij", 11, 0, 0);
+    test("abcde", 1, 1, "abcdefghijklmnopqrst", 0, 0, 1);
+    test("abcde", 1, 1, "abcdefghijklmnopqrst", 0, 1, 1);
+    test("abcde", 1, 1, "abcdefghijklmnopqrst", 0, 10, 1);
+    test("abcde", 1, 1, "abcdefghijklmnopqrst", 0, 19, 1);
+    test("abcde", 1, 1, "abcdefghijklmnopqrst", 0, 20, 1);
+    test("abcde", 1, 1, "abcdefghijklmnopqrst", 0, 21, 1);
+    test("abcde", 1, 1, "abcdefghijklmnopqrst", 1, 0, 1);
+    test("abcde", 1, 1, "abcdefghijklmnopqrst", 1, 1, 0);
+    test("abcde", 1, 1, "abcdefghijklmnopqrst", 1, 9, -8);
+    test("abcde", 1, 1, "abcdefghijklmnopqrst", 1, 18, -17);
+}
+
+void test8()
+{
+    test("abcde", 1, 1, "abcdefghijklmnopqrst", 1, 19, -18);
+    test("abcde", 1, 1, "abcdefghijklmnopqrst", 1, 20, -18);
+    test("abcde", 1, 1, "abcdefghijklmnopqrst", 10, 0, 1);
+    test("abcde", 1, 1, "abcdefghijklmnopqrst", 10, 1, -9);
+    test("abcde", 1, 1, "abcdefghijklmnopqrst", 10, 5, -9);
+    test("abcde", 1, 1, "abcdefghijklmnopqrst", 10, 9, -9);
+    test("abcde", 1, 1, "abcdefghijklmnopqrst", 10, 10, -9);
+    test("abcde", 1, 1, "abcdefghijklmnopqrst", 10, 11, -9);
+    test("abcde", 1, 1, "abcdefghijklmnopqrst", 19, 0, 1);
+    test("abcde", 1, 1, "abcdefghijklmnopqrst", 19, 1, -18);
+    test("abcde", 1, 1, "abcdefghijklmnopqrst", 19, 2, -18);
+    test("abcde", 1, 1, "abcdefghijklmnopqrst", 20, 0, 1);
+    test("abcde", 1, 1, "abcdefghijklmnopqrst", 20, 1, 1);
+    test("abcde", 1, 1, "abcdefghijklmnopqrst", 21, 0, 0);
+    test("abcde", 1, 2, "", 0, 0, 2);
+    test("abcde", 1, 2, "", 0, 1, 2);
+    test("abcde", 1, 2, "", 1, 0, 0);
+    test("abcde", 1, 2, "abcde", 0, 0, 2);
+    test("abcde", 1, 2, "abcde", 0, 1, 1);
+    test("abcde", 1, 2, "abcde", 0, 2, 1);
+    test("abcde", 1, 2, "abcde", 0, 4, 1);
+    test("abcde", 1, 2, "abcde", 0, 5, 1);
+    test("abcde", 1, 2, "abcde", 0, 6, 1);
+    test("abcde", 1, 2, "abcde", 1, 0, 2);
+    test("abcde", 1, 2, "abcde", 1, 1, 1);
+    test("abcde", 1, 2, "abcde", 1, 2, 0);
+    test("abcde", 1, 2, "abcde", 1, 3, -1);
+    test("abcde", 1, 2, "abcde", 1, 4, -2);
+    test("abcde", 1, 2, "abcde", 1, 5, -2);
+    test("abcde", 1, 2, "abcde", 2, 0, 2);
+    test("abcde", 1, 2, "abcde", 2, 1, -1);
+    test("abcde", 1, 2, "abcde", 2, 2, -1);
+    test("abcde", 1, 2, "abcde", 2, 3, -1);
+    test("abcde", 1, 2, "abcde", 2, 4, -1);
+    test("abcde", 1, 2, "abcde", 4, 0, 2);
+    test("abcde", 1, 2, "abcde", 4, 1, -3);
+    test("abcde", 1, 2, "abcde", 4, 2, -3);
+    test("abcde", 1, 2, "abcde", 5, 0, 2);
+    test("abcde", 1, 2, "abcde", 5, 1, 2);
+    test("abcde", 1, 2, "abcde", 6, 0, 0);
+    test("abcde", 1, 2, "abcdefghij", 0, 0, 2);
+    test("abcde", 1, 2, "abcdefghij", 0, 1, 1);
+    test("abcde", 1, 2, "abcdefghij", 0, 5, 1);
+    test("abcde", 1, 2, "abcdefghij", 0, 9, 1);
+    test("abcde", 1, 2, "abcdefghij", 0, 10, 1);
+    test("abcde", 1, 2, "abcdefghij", 0, 11, 1);
+    test("abcde", 1, 2, "abcdefghij", 1, 0, 2);
+    test("abcde", 1, 2, "abcdefghij", 1, 1, 1);
+    test("abcde", 1, 2, "abcdefghij", 1, 4, -2);
+    test("abcde", 1, 2, "abcdefghij", 1, 8, -6);
+    test("abcde", 1, 2, "abcdefghij", 1, 9, -7);
+    test("abcde", 1, 2, "abcdefghij", 1, 10, -7);
+    test("abcde", 1, 2, "abcdefghij", 5, 0, 2);
+    test("abcde", 1, 2, "abcdefghij", 5, 1, -4);
+    test("abcde", 1, 2, "abcdefghij", 5, 2, -4);
+    test("abcde", 1, 2, "abcdefghij", 5, 4, -4);
+    test("abcde", 1, 2, "abcdefghij", 5, 5, -4);
+    test("abcde", 1, 2, "abcdefghij", 5, 6, -4);
+    test("abcde", 1, 2, "abcdefghij", 9, 0, 2);
+    test("abcde", 1, 2, "abcdefghij", 9, 1, -8);
+    test("abcde", 1, 2, "abcdefghij", 9, 2, -8);
+    test("abcde", 1, 2, "abcdefghij", 10, 0, 2);
+    test("abcde", 1, 2, "abcdefghij", 10, 1, 2);
+    test("abcde", 1, 2, "abcdefghij", 11, 0, 0);
+    test("abcde", 1, 2, "abcdefghijklmnopqrst", 0, 0, 2);
+    test("abcde", 1, 2, "abcdefghijklmnopqrst", 0, 1, 1);
+    test("abcde", 1, 2, "abcdefghijklmnopqrst", 0, 10, 1);
+    test("abcde", 1, 2, "abcdefghijklmnopqrst", 0, 19, 1);
+    test("abcde", 1, 2, "abcdefghijklmnopqrst", 0, 20, 1);
+    test("abcde", 1, 2, "abcdefghijklmnopqrst", 0, 21, 1);
+    test("abcde", 1, 2, "abcdefghijklmnopqrst", 1, 0, 2);
+    test("abcde", 1, 2, "abcdefghijklmnopqrst", 1, 1, 1);
+    test("abcde", 1, 2, "abcdefghijklmnopqrst", 1, 9, -7);
+    test("abcde", 1, 2, "abcdefghijklmnopqrst", 1, 18, -16);
+    test("abcde", 1, 2, "abcdefghijklmnopqrst", 1, 19, -17);
+    test("abcde", 1, 2, "abcdefghijklmnopqrst", 1, 20, -17);
+    test("abcde", 1, 2, "abcdefghijklmnopqrst", 10, 0, 2);
+    test("abcde", 1, 2, "abcdefghijklmnopqrst", 10, 1, -9);
+    test("abcde", 1, 2, "abcdefghijklmnopqrst", 10, 5, -9);
+    test("abcde", 1, 2, "abcdefghijklmnopqrst", 10, 9, -9);
+    test("abcde", 1, 2, "abcdefghijklmnopqrst", 10, 10, -9);
+    test("abcde", 1, 2, "abcdefghijklmnopqrst", 10, 11, -9);
+    test("abcde", 1, 2, "abcdefghijklmnopqrst", 19, 0, 2);
+    test("abcde", 1, 2, "abcdefghijklmnopqrst", 19, 1, -18);
+    test("abcde", 1, 2, "abcdefghijklmnopqrst", 19, 2, -18);
+    test("abcde", 1, 2, "abcdefghijklmnopqrst", 20, 0, 2);
+    test("abcde", 1, 2, "abcdefghijklmnopqrst", 20, 1, 2);
+    test("abcde", 1, 2, "abcdefghijklmnopqrst", 21, 0, 0);
+    test("abcde", 1, 3, "", 0, 0, 3);
+    test("abcde", 1, 3, "", 0, 1, 3);
+    test("abcde", 1, 3, "", 1, 0, 0);
+    test("abcde", 1, 3, "abcde", 0, 0, 3);
+    test("abcde", 1, 3, "abcde", 0, 1, 1);
+    test("abcde", 1, 3, "abcde", 0, 2, 1);
+    test("abcde", 1, 3, "abcde", 0, 4, 1);
+    test("abcde", 1, 3, "abcde", 0, 5, 1);
+    test("abcde", 1, 3, "abcde", 0, 6, 1);
+    test("abcde", 1, 3, "abcde", 1, 0, 3);
+    test("abcde", 1, 3, "abcde", 1, 1, 2);
+    test("abcde", 1, 3, "abcde", 1, 2, 1);
+}
+
+void test9()
+{
+    test("abcde", 1, 3, "abcde", 1, 3, 0);
+    test("abcde", 1, 3, "abcde", 1, 4, -1);
+    test("abcde", 1, 3, "abcde", 1, 5, -1);
+    test("abcde", 1, 3, "abcde", 2, 0, 3);
+    test("abcde", 1, 3, "abcde", 2, 1, -1);
+    test("abcde", 1, 3, "abcde", 2, 2, -1);
+    test("abcde", 1, 3, "abcde", 2, 3, -1);
+    test("abcde", 1, 3, "abcde", 2, 4, -1);
+    test("abcde", 1, 3, "abcde", 4, 0, 3);
+    test("abcde", 1, 3, "abcde", 4, 1, -3);
+    test("abcde", 1, 3, "abcde", 4, 2, -3);
+    test("abcde", 1, 3, "abcde", 5, 0, 3);
+    test("abcde", 1, 3, "abcde", 5, 1, 3);
+    test("abcde", 1, 3, "abcde", 6, 0, 0);
+    test("abcde", 1, 3, "abcdefghij", 0, 0, 3);
+    test("abcde", 1, 3, "abcdefghij", 0, 1, 1);
+    test("abcde", 1, 3, "abcdefghij", 0, 5, 1);
+    test("abcde", 1, 3, "abcdefghij", 0, 9, 1);
+    test("abcde", 1, 3, "abcdefghij", 0, 10, 1);
+    test("abcde", 1, 3, "abcdefghij", 0, 11, 1);
+    test("abcde", 1, 3, "abcdefghij", 1, 0, 3);
+    test("abcde", 1, 3, "abcdefghij", 1, 1, 2);
+    test("abcde", 1, 3, "abcdefghij", 1, 4, -1);
+    test("abcde", 1, 3, "abcdefghij", 1, 8, -5);
+    test("abcde", 1, 3, "abcdefghij", 1, 9, -6);
+    test("abcde", 1, 3, "abcdefghij", 1, 10, -6);
+    test("abcde", 1, 3, "abcdefghij", 5, 0, 3);
+    test("abcde", 1, 3, "abcdefghij", 5, 1, -4);
+    test("abcde", 1, 3, "abcdefghij", 5, 2, -4);
+    test("abcde", 1, 3, "abcdefghij", 5, 4, -4);
+    test("abcde", 1, 3, "abcdefghij", 5, 5, -4);
+    test("abcde", 1, 3, "abcdefghij", 5, 6, -4);
+    test("abcde", 1, 3, "abcdefghij", 9, 0, 3);
+    test("abcde", 1, 3, "abcdefghij", 9, 1, -8);
+    test("abcde", 1, 3, "abcdefghij", 9, 2, -8);
+    test("abcde", 1, 3, "abcdefghij", 10, 0, 3);
+    test("abcde", 1, 3, "abcdefghij", 10, 1, 3);
+    test("abcde", 1, 3, "abcdefghij", 11, 0, 0);
+    test("abcde", 1, 3, "abcdefghijklmnopqrst", 0, 0, 3);
+    test("abcde", 1, 3, "abcdefghijklmnopqrst", 0, 1, 1);
+    test("abcde", 1, 3, "abcdefghijklmnopqrst", 0, 10, 1);
+    test("abcde", 1, 3, "abcdefghijklmnopqrst", 0, 19, 1);
+    test("abcde", 1, 3, "abcdefghijklmnopqrst", 0, 20, 1);
+    test("abcde", 1, 3, "abcdefghijklmnopqrst", 0, 21, 1);
+    test("abcde", 1, 3, "abcdefghijklmnopqrst", 1, 0, 3);
+    test("abcde", 1, 3, "abcdefghijklmnopqrst", 1, 1, 2);
+    test("abcde", 1, 3, "abcdefghijklmnopqrst", 1, 9, -6);
+    test("abcde", 1, 3, "abcdefghijklmnopqrst", 1, 18, -15);
+    test("abcde", 1, 3, "abcdefghijklmnopqrst", 1, 19, -16);
+    test("abcde", 1, 3, "abcdefghijklmnopqrst", 1, 20, -16);
+    test("abcde", 1, 3, "abcdefghijklmnopqrst", 10, 0, 3);
+    test("abcde", 1, 3, "abcdefghijklmnopqrst", 10, 1, -9);
+    test("abcde", 1, 3, "abcdefghijklmnopqrst", 10, 5, -9);
+    test("abcde", 1, 3, "abcdefghijklmnopqrst", 10, 9, -9);
+    test("abcde", 1, 3, "abcdefghijklmnopqrst", 10, 10, -9);
+    test("abcde", 1, 3, "abcdefghijklmnopqrst", 10, 11, -9);
+    test("abcde", 1, 3, "abcdefghijklmnopqrst", 19, 0, 3);
+    test("abcde", 1, 3, "abcdefghijklmnopqrst", 19, 1, -18);
+    test("abcde", 1, 3, "abcdefghijklmnopqrst", 19, 2, -18);
+    test("abcde", 1, 3, "abcdefghijklmnopqrst", 20, 0, 3);
+    test("abcde", 1, 3, "abcdefghijklmnopqrst", 20, 1, 3);
+    test("abcde", 1, 3, "abcdefghijklmnopqrst", 21, 0, 0);
+    test("abcde", 1, 4, "", 0, 0, 4);
+    test("abcde", 1, 4, "", 0, 1, 4);
+    test("abcde", 1, 4, "", 1, 0, 0);
+    test("abcde", 1, 4, "abcde", 0, 0, 4);
+    test("abcde", 1, 4, "abcde", 0, 1, 1);
+    test("abcde", 1, 4, "abcde", 0, 2, 1);
+    test("abcde", 1, 4, "abcde", 0, 4, 1);
+    test("abcde", 1, 4, "abcde", 0, 5, 1);
+    test("abcde", 1, 4, "abcde", 0, 6, 1);
+    test("abcde", 1, 4, "abcde", 1, 0, 4);
+    test("abcde", 1, 4, "abcde", 1, 1, 3);
+    test("abcde", 1, 4, "abcde", 1, 2, 2);
+    test("abcde", 1, 4, "abcde", 1, 3, 1);
+    test("abcde", 1, 4, "abcde", 1, 4, 0);
+    test("abcde", 1, 4, "abcde", 1, 5, 0);
+    test("abcde", 1, 4, "abcde", 2, 0, 4);
+    test("abcde", 1, 4, "abcde", 2, 1, -1);
+    test("abcde", 1, 4, "abcde", 2, 2, -1);
+    test("abcde", 1, 4, "abcde", 2, 3, -1);
+    test("abcde", 1, 4, "abcde", 2, 4, -1);
+    test("abcde", 1, 4, "abcde", 4, 0, 4);
+    test("abcde", 1, 4, "abcde", 4, 1, -3);
+    test("abcde", 1, 4, "abcde", 4, 2, -3);
+    test("abcde", 1, 4, "abcde", 5, 0, 4);
+    test("abcde", 1, 4, "abcde", 5, 1, 4);
+    test("abcde", 1, 4, "abcde", 6, 0, 0);
+    test("abcde", 1, 4, "abcdefghij", 0, 0, 4);
+    test("abcde", 1, 4, "abcdefghij", 0, 1, 1);
+    test("abcde", 1, 4, "abcdefghij", 0, 5, 1);
+    test("abcde", 1, 4, "abcdefghij", 0, 9, 1);
+    test("abcde", 1, 4, "abcdefghij", 0, 10, 1);
+    test("abcde", 1, 4, "abcdefghij", 0, 11, 1);
+    test("abcde", 1, 4, "abcdefghij", 1, 0, 4);
+    test("abcde", 1, 4, "abcdefghij", 1, 1, 3);
+    test("abcde", 1, 4, "abcdefghij", 1, 4, 0);
+    test("abcde", 1, 4, "abcdefghij", 1, 8, -4);
+    test("abcde", 1, 4, "abcdefghij", 1, 9, -5);
+    test("abcde", 1, 4, "abcdefghij", 1, 10, -5);
+}
+
+void test10()
+{
+    test("abcde", 1, 4, "abcdefghij", 5, 0, 4);
+    test("abcde", 1, 4, "abcdefghij", 5, 1, -4);
+    test("abcde", 1, 4, "abcdefghij", 5, 2, -4);
+    test("abcde", 1, 4, "abcdefghij", 5, 4, -4);
+    test("abcde", 1, 4, "abcdefghij", 5, 5, -4);
+    test("abcde", 1, 4, "abcdefghij", 5, 6, -4);
+    test("abcde", 1, 4, "abcdefghij", 9, 0, 4);
+    test("abcde", 1, 4, "abcdefghij", 9, 1, -8);
+    test("abcde", 1, 4, "abcdefghij", 9, 2, -8);
+    test("abcde", 1, 4, "abcdefghij", 10, 0, 4);
+    test("abcde", 1, 4, "abcdefghij", 10, 1, 4);
+    test("abcde", 1, 4, "abcdefghij", 11, 0, 0);
+    test("abcde", 1, 4, "abcdefghijklmnopqrst", 0, 0, 4);
+    test("abcde", 1, 4, "abcdefghijklmnopqrst", 0, 1, 1);
+    test("abcde", 1, 4, "abcdefghijklmnopqrst", 0, 10, 1);
+    test("abcde", 1, 4, "abcdefghijklmnopqrst", 0, 19, 1);
+    test("abcde", 1, 4, "abcdefghijklmnopqrst", 0, 20, 1);
+    test("abcde", 1, 4, "abcdefghijklmnopqrst", 0, 21, 1);
+    test("abcde", 1, 4, "abcdefghijklmnopqrst", 1, 0, 4);
+    test("abcde", 1, 4, "abcdefghijklmnopqrst", 1, 1, 3);
+    test("abcde", 1, 4, "abcdefghijklmnopqrst", 1, 9, -5);
+    test("abcde", 1, 4, "abcdefghijklmnopqrst", 1, 18, -14);
+    test("abcde", 1, 4, "abcdefghijklmnopqrst", 1, 19, -15);
+    test("abcde", 1, 4, "abcdefghijklmnopqrst", 1, 20, -15);
+    test("abcde", 1, 4, "abcdefghijklmnopqrst", 10, 0, 4);
+    test("abcde", 1, 4, "abcdefghijklmnopqrst", 10, 1, -9);
+    test("abcde", 1, 4, "abcdefghijklmnopqrst", 10, 5, -9);
+    test("abcde", 1, 4, "abcdefghijklmnopqrst", 10, 9, -9);
+    test("abcde", 1, 4, "abcdefghijklmnopqrst", 10, 10, -9);
+    test("abcde", 1, 4, "abcdefghijklmnopqrst", 10, 11, -9);
+    test("abcde", 1, 4, "abcdefghijklmnopqrst", 19, 0, 4);
+    test("abcde", 1, 4, "abcdefghijklmnopqrst", 19, 1, -18);
+    test("abcde", 1, 4, "abcdefghijklmnopqrst", 19, 2, -18);
+    test("abcde", 1, 4, "abcdefghijklmnopqrst", 20, 0, 4);
+    test("abcde", 1, 4, "abcdefghijklmnopqrst", 20, 1, 4);
+    test("abcde", 1, 4, "abcdefghijklmnopqrst", 21, 0, 0);
+    test("abcde", 1, 5, "", 0, 0, 4);
+    test("abcde", 1, 5, "", 0, 1, 4);
+    test("abcde", 1, 5, "", 1, 0, 0);
+    test("abcde", 1, 5, "abcde", 0, 0, 4);
+    test("abcde", 1, 5, "abcde", 0, 1, 1);
+    test("abcde", 1, 5, "abcde", 0, 2, 1);
+    test("abcde", 1, 5, "abcde", 0, 4, 1);
+    test("abcde", 1, 5, "abcde", 0, 5, 1);
+    test("abcde", 1, 5, "abcde", 0, 6, 1);
+    test("abcde", 1, 5, "abcde", 1, 0, 4);
+    test("abcde", 1, 5, "abcde", 1, 1, 3);
+    test("abcde", 1, 5, "abcde", 1, 2, 2);
+    test("abcde", 1, 5, "abcde", 1, 3, 1);
+    test("abcde", 1, 5, "abcde", 1, 4, 0);
+    test("abcde", 1, 5, "abcde", 1, 5, 0);
+    test("abcde", 1, 5, "abcde", 2, 0, 4);
+    test("abcde", 1, 5, "abcde", 2, 1, -1);
+    test("abcde", 1, 5, "abcde", 2, 2, -1);
+    test("abcde", 1, 5, "abcde", 2, 3, -1);
+    test("abcde", 1, 5, "abcde", 2, 4, -1);
+    test("abcde", 1, 5, "abcde", 4, 0, 4);
+    test("abcde", 1, 5, "abcde", 4, 1, -3);
+    test("abcde", 1, 5, "abcde", 4, 2, -3);
+    test("abcde", 1, 5, "abcde", 5, 0, 4);
+    test("abcde", 1, 5, "abcde", 5, 1, 4);
+    test("abcde", 1, 5, "abcde", 6, 0, 0);
+    test("abcde", 1, 5, "abcdefghij", 0, 0, 4);
+    test("abcde", 1, 5, "abcdefghij", 0, 1, 1);
+    test("abcde", 1, 5, "abcdefghij", 0, 5, 1);
+    test("abcde", 1, 5, "abcdefghij", 0, 9, 1);
+    test("abcde", 1, 5, "abcdefghij", 0, 10, 1);
+    test("abcde", 1, 5, "abcdefghij", 0, 11, 1);
+    test("abcde", 1, 5, "abcdefghij", 1, 0, 4);
+    test("abcde", 1, 5, "abcdefghij", 1, 1, 3);
+    test("abcde", 1, 5, "abcdefghij", 1, 4, 0);
+    test("abcde", 1, 5, "abcdefghij", 1, 8, -4);
+    test("abcde", 1, 5, "abcdefghij", 1, 9, -5);
+    test("abcde", 1, 5, "abcdefghij", 1, 10, -5);
+    test("abcde", 1, 5, "abcdefghij", 5, 0, 4);
+    test("abcde", 1, 5, "abcdefghij", 5, 1, -4);
+    test("abcde", 1, 5, "abcdefghij", 5, 2, -4);
+    test("abcde", 1, 5, "abcdefghij", 5, 4, -4);
+    test("abcde", 1, 5, "abcdefghij", 5, 5, -4);
+    test("abcde", 1, 5, "abcdefghij", 5, 6, -4);
+    test("abcde", 1, 5, "abcdefghij", 9, 0, 4);
+    test("abcde", 1, 5, "abcdefghij", 9, 1, -8);
+    test("abcde", 1, 5, "abcdefghij", 9, 2, -8);
+    test("abcde", 1, 5, "abcdefghij", 10, 0, 4);
+    test("abcde", 1, 5, "abcdefghij", 10, 1, 4);
+    test("abcde", 1, 5, "abcdefghij", 11, 0, 0);
+    test("abcde", 1, 5, "abcdefghijklmnopqrst", 0, 0, 4);
+    test("abcde", 1, 5, "abcdefghijklmnopqrst", 0, 1, 1);
+    test("abcde", 1, 5, "abcdefghijklmnopqrst", 0, 10, 1);
+    test("abcde", 1, 5, "abcdefghijklmnopqrst", 0, 19, 1);
+    test("abcde", 1, 5, "abcdefghijklmnopqrst", 0, 20, 1);
+    test("abcde", 1, 5, "abcdefghijklmnopqrst", 0, 21, 1);
+    test("abcde", 1, 5, "abcdefghijklmnopqrst", 1, 0, 4);
+    test("abcde", 1, 5, "abcdefghijklmnopqrst", 1, 1, 3);
+    test("abcde", 1, 5, "abcdefghijklmnopqrst", 1, 9, -5);
+    test("abcde", 1, 5, "abcdefghijklmnopqrst", 1, 18, -14);
+    test("abcde", 1, 5, "abcdefghijklmnopqrst", 1, 19, -15);
+    test("abcde", 1, 5, "abcdefghijklmnopqrst", 1, 20, -15);
+    test("abcde", 1, 5, "abcdefghijklmnopqrst", 10, 0, 4);
+    test("abcde", 1, 5, "abcdefghijklmnopqrst", 10, 1, -9);
+}
+
+void test11()
+{
+    test("abcde", 1, 5, "abcdefghijklmnopqrst", 10, 5, -9);
+    test("abcde", 1, 5, "abcdefghijklmnopqrst", 10, 9, -9);
+    test("abcde", 1, 5, "abcdefghijklmnopqrst", 10, 10, -9);
+    test("abcde", 1, 5, "abcdefghijklmnopqrst", 10, 11, -9);
+    test("abcde", 1, 5, "abcdefghijklmnopqrst", 19, 0, 4);
+    test("abcde", 1, 5, "abcdefghijklmnopqrst", 19, 1, -18);
+    test("abcde", 1, 5, "abcdefghijklmnopqrst", 19, 2, -18);
+    test("abcde", 1, 5, "abcdefghijklmnopqrst", 20, 0, 4);
+    test("abcde", 1, 5, "abcdefghijklmnopqrst", 20, 1, 4);
+    test("abcde", 1, 5, "abcdefghijklmnopqrst", 21, 0, 0);
+    test("abcde", 2, 0, "", 0, 0, 0);
+    test("abcde", 2, 0, "", 0, 1, 0);
+    test("abcde", 2, 0, "", 1, 0, 0);
+    test("abcde", 2, 0, "abcde", 0, 0, 0);
+    test("abcde", 2, 0, "abcde", 0, 1, -1);
+    test("abcde", 2, 0, "abcde", 0, 2, -2);
+    test("abcde", 2, 0, "abcde", 0, 4, -4);
+    test("abcde", 2, 0, "abcde", 0, 5, -5);
+    test("abcde", 2, 0, "abcde", 0, 6, -5);
+    test("abcde", 2, 0, "abcde", 1, 0, 0);
+    test("abcde", 2, 0, "abcde", 1, 1, -1);
+    test("abcde", 2, 0, "abcde", 1, 2, -2);
+    test("abcde", 2, 0, "abcde", 1, 3, -3);
+    test("abcde", 2, 0, "abcde", 1, 4, -4);
+    test("abcde", 2, 0, "abcde", 1, 5, -4);
+    test("abcde", 2, 0, "abcde", 2, 0, 0);
+    test("abcde", 2, 0, "abcde", 2, 1, -1);
+    test("abcde", 2, 0, "abcde", 2, 2, -2);
+    test("abcde", 2, 0, "abcde", 2, 3, -3);
+    test("abcde", 2, 0, "abcde", 2, 4, -3);
+    test("abcde", 2, 0, "abcde", 4, 0, 0);
+    test("abcde", 2, 0, "abcde", 4, 1, -1);
+    test("abcde", 2, 0, "abcde", 4, 2, -1);
+    test("abcde", 2, 0, "abcde", 5, 0, 0);
+    test("abcde", 2, 0, "abcde", 5, 1, 0);
+    test("abcde", 2, 0, "abcde", 6, 0, 0);
+    test("abcde", 2, 0, "abcdefghij", 0, 0, 0);
+    test("abcde", 2, 0, "abcdefghij", 0, 1, -1);
+    test("abcde", 2, 0, "abcdefghij", 0, 5, -5);
+    test("abcde", 2, 0, "abcdefghij", 0, 9, -9);
+    test("abcde", 2, 0, "abcdefghij", 0, 10, -10);
+    test("abcde", 2, 0, "abcdefghij", 0, 11, -10);
+    test("abcde", 2, 0, "abcdefghij", 1, 0, 0);
+    test("abcde", 2, 0, "abcdefghij", 1, 1, -1);
+    test("abcde", 2, 0, "abcdefghij", 1, 4, -4);
+    test("abcde", 2, 0, "abcdefghij", 1, 8, -8);
+    test("abcde", 2, 0, "abcdefghij", 1, 9, -9);
+    test("abcde", 2, 0, "abcdefghij", 1, 10, -9);
+    test("abcde", 2, 0, "abcdefghij", 5, 0, 0);
+    test("abcde", 2, 0, "abcdefghij", 5, 1, -1);
+    test("abcde", 2, 0, "abcdefghij", 5, 2, -2);
+    test("abcde", 2, 0, "abcdefghij", 5, 4, -4);
+    test("abcde", 2, 0, "abcdefghij", 5, 5, -5);
+    test("abcde", 2, 0, "abcdefghij", 5, 6, -5);
+    test("abcde", 2, 0, "abcdefghij", 9, 0, 0);
+    test("abcde", 2, 0, "abcdefghij", 9, 1, -1);
+    test("abcde", 2, 0, "abcdefghij", 9, 2, -1);
+    test("abcde", 2, 0, "abcdefghij", 10, 0, 0);
+    test("abcde", 2, 0, "abcdefghij", 10, 1, 0);
+    test("abcde", 2, 0, "abcdefghij", 11, 0, 0);
+    test("abcde", 2, 0, "abcdefghijklmnopqrst", 0, 0, 0);
+    test("abcde", 2, 0, "abcdefghijklmnopqrst", 0, 1, -1);
+    test("abcde", 2, 0, "abcdefghijklmnopqrst", 0, 10, -10);
+    test("abcde", 2, 0, "abcdefghijklmnopqrst", 0, 19, -19);
+    test("abcde", 2, 0, "abcdefghijklmnopqrst", 0, 20, -20);
+    test("abcde", 2, 0, "abcdefghijklmnopqrst", 0, 21, -20);
+    test("abcde", 2, 0, "abcdefghijklmnopqrst", 1, 0, 0);
+    test("abcde", 2, 0, "abcdefghijklmnopqrst", 1, 1, -1);
+    test("abcde", 2, 0, "abcdefghijklmnopqrst", 1, 9, -9);
+    test("abcde", 2, 0, "abcdefghijklmnopqrst", 1, 18, -18);
+    test("abcde", 2, 0, "abcdefghijklmnopqrst", 1, 19, -19);
+    test("abcde", 2, 0, "abcdefghijklmnopqrst", 1, 20, -19);
+    test("abcde", 2, 0, "abcdefghijklmnopqrst", 10, 0, 0);
+    test("abcde", 2, 0, "abcdefghijklmnopqrst", 10, 1, -1);
+    test("abcde", 2, 0, "abcdefghijklmnopqrst", 10, 5, -5);
+    test("abcde", 2, 0, "abcdefghijklmnopqrst", 10, 9, -9);
+    test("abcde", 2, 0, "abcdefghijklmnopqrst", 10, 10, -10);
+    test("abcde", 2, 0, "abcdefghijklmnopqrst", 10, 11, -10);
+    test("abcde", 2, 0, "abcdefghijklmnopqrst", 19, 0, 0);
+    test("abcde", 2, 0, "abcdefghijklmnopqrst", 19, 1, -1);
+    test("abcde", 2, 0, "abcdefghijklmnopqrst", 19, 2, -1);
+    test("abcde", 2, 0, "abcdefghijklmnopqrst", 20, 0, 0);
+    test("abcde", 2, 0, "abcdefghijklmnopqrst", 20, 1, 0);
+    test("abcde", 2, 0, "abcdefghijklmnopqrst", 21, 0, 0);
+    test("abcde", 2, 1, "", 0, 0, 1);
+    test("abcde", 2, 1, "", 0, 1, 1);
+    test("abcde", 2, 1, "", 1, 0, 0);
+    test("abcde", 2, 1, "abcde", 0, 0, 1);
+    test("abcde", 2, 1, "abcde", 0, 1, 2);
+    test("abcde", 2, 1, "abcde", 0, 2, 2);
+    test("abcde", 2, 1, "abcde", 0, 4, 2);
+    test("abcde", 2, 1, "abcde", 0, 5, 2);
+    test("abcde", 2, 1, "abcde", 0, 6, 2);
+    test("abcde", 2, 1, "abcde", 1, 0, 1);
+    test("abcde", 2, 1, "abcde", 1, 1, 1);
+    test("abcde", 2, 1, "abcde", 1, 2, 1);
+    test("abcde", 2, 1, "abcde", 1, 3, 1);
+    test("abcde", 2, 1, "abcde", 1, 4, 1);
+    test("abcde", 2, 1, "abcde", 1, 5, 1);
+    test("abcde", 2, 1, "abcde", 2, 0, 1);
+}
+
+void test12()
+{
+    test("abcde", 2, 1, "abcde", 2, 1, 0);
+    test("abcde", 2, 1, "abcde", 2, 2, -1);
+    test("abcde", 2, 1, "abcde", 2, 3, -2);
+    test("abcde", 2, 1, "abcde", 2, 4, -2);
+    test("abcde", 2, 1, "abcde", 4, 0, 1);
+    test("abcde", 2, 1, "abcde", 4, 1, -2);
+    test("abcde", 2, 1, "abcde", 4, 2, -2);
+    test("abcde", 2, 1, "abcde", 5, 0, 1);
+    test("abcde", 2, 1, "abcde", 5, 1, 1);
+    test("abcde", 2, 1, "abcde", 6, 0, 0);
+    test("abcde", 2, 1, "abcdefghij", 0, 0, 1);
+    test("abcde", 2, 1, "abcdefghij", 0, 1, 2);
+    test("abcde", 2, 1, "abcdefghij", 0, 5, 2);
+    test("abcde", 2, 1, "abcdefghij", 0, 9, 2);
+    test("abcde", 2, 1, "abcdefghij", 0, 10, 2);
+    test("abcde", 2, 1, "abcdefghij", 0, 11, 2);
+    test("abcde", 2, 1, "abcdefghij", 1, 0, 1);
+    test("abcde", 2, 1, "abcdefghij", 1, 1, 1);
+    test("abcde", 2, 1, "abcdefghij", 1, 4, 1);
+    test("abcde", 2, 1, "abcdefghij", 1, 8, 1);
+    test("abcde", 2, 1, "abcdefghij", 1, 9, 1);
+    test("abcde", 2, 1, "abcdefghij", 1, 10, 1);
+    test("abcde", 2, 1, "abcdefghij", 5, 0, 1);
+    test("abcde", 2, 1, "abcdefghij", 5, 1, -3);
+    test("abcde", 2, 1, "abcdefghij", 5, 2, -3);
+    test("abcde", 2, 1, "abcdefghij", 5, 4, -3);
+    test("abcde", 2, 1, "abcdefghij", 5, 5, -3);
+    test("abcde", 2, 1, "abcdefghij", 5, 6, -3);
+    test("abcde", 2, 1, "abcdefghij", 9, 0, 1);
+    test("abcde", 2, 1, "abcdefghij", 9, 1, -7);
+    test("abcde", 2, 1, "abcdefghij", 9, 2, -7);
+    test("abcde", 2, 1, "abcdefghij", 10, 0, 1);
+    test("abcde", 2, 1, "abcdefghij", 10, 1, 1);
+    test("abcde", 2, 1, "abcdefghij", 11, 0, 0);
+    test("abcde", 2, 1, "abcdefghijklmnopqrst", 0, 0, 1);
+    test("abcde", 2, 1, "abcdefghijklmnopqrst", 0, 1, 2);
+    test("abcde", 2, 1, "abcdefghijklmnopqrst", 0, 10, 2);
+    test("abcde", 2, 1, "abcdefghijklmnopqrst", 0, 19, 2);
+    test("abcde", 2, 1, "abcdefghijklmnopqrst", 0, 20, 2);
+    test("abcde", 2, 1, "abcdefghijklmnopqrst", 0, 21, 2);
+    test("abcde", 2, 1, "abcdefghijklmnopqrst", 1, 0, 1);
+    test("abcde", 2, 1, "abcdefghijklmnopqrst", 1, 1, 1);
+    test("abcde", 2, 1, "abcdefghijklmnopqrst", 1, 9, 1);
+    test("abcde", 2, 1, "abcdefghijklmnopqrst", 1, 18, 1);
+    test("abcde", 2, 1, "abcdefghijklmnopqrst", 1, 19, 1);
+    test("abcde", 2, 1, "abcdefghijklmnopqrst", 1, 20, 1);
+    test("abcde", 2, 1, "abcdefghijklmnopqrst", 10, 0, 1);
+    test("abcde", 2, 1, "abcdefghijklmnopqrst", 10, 1, -8);
+    test("abcde", 2, 1, "abcdefghijklmnopqrst", 10, 5, -8);
+    test("abcde", 2, 1, "abcdefghijklmnopqrst", 10, 9, -8);
+    test("abcde", 2, 1, "abcdefghijklmnopqrst", 10, 10, -8);
+    test("abcde", 2, 1, "abcdefghijklmnopqrst", 10, 11, -8);
+    test("abcde", 2, 1, "abcdefghijklmnopqrst", 19, 0, 1);
+    test("abcde", 2, 1, "abcdefghijklmnopqrst", 19, 1, -17);
+    test("abcde", 2, 1, "abcdefghijklmnopqrst", 19, 2, -17);
+    test("abcde", 2, 1, "abcdefghijklmnopqrst", 20, 0, 1);
+    test("abcde", 2, 1, "abcdefghijklmnopqrst", 20, 1, 1);
+    test("abcde", 2, 1, "abcdefghijklmnopqrst", 21, 0, 0);
+    test("abcde", 2, 2, "", 0, 0, 2);
+    test("abcde", 2, 2, "", 0, 1, 2);
+    test("abcde", 2, 2, "", 1, 0, 0);
+    test("abcde", 2, 2, "abcde", 0, 0, 2);
+    test("abcde", 2, 2, "abcde", 0, 1, 2);
+    test("abcde", 2, 2, "abcde", 0, 2, 2);
+    test("abcde", 2, 2, "abcde", 0, 4, 2);
+    test("abcde", 2, 2, "abcde", 0, 5, 2);
+    test("abcde", 2, 2, "abcde", 0, 6, 2);
+    test("abcde", 2, 2, "abcde", 1, 0, 2);
+    test("abcde", 2, 2, "abcde", 1, 1, 1);
+    test("abcde", 2, 2, "abcde", 1, 2, 1);
+    test("abcde", 2, 2, "abcde", 1, 3, 1);
+    test("abcde", 2, 2, "abcde", 1, 4, 1);
+    test("abcde", 2, 2, "abcde", 1, 5, 1);
+    test("abcde", 2, 2, "abcde", 2, 0, 2);
+    test("abcde", 2, 2, "abcde", 2, 1, 1);
+    test("abcde", 2, 2, "abcde", 2, 2, 0);
+    test("abcde", 2, 2, "abcde", 2, 3, -1);
+    test("abcde", 2, 2, "abcde", 2, 4, -1);
+    test("abcde", 2, 2, "abcde", 4, 0, 2);
+    test("abcde", 2, 2, "abcde", 4, 1, -2);
+    test("abcde", 2, 2, "abcde", 4, 2, -2);
+    test("abcde", 2, 2, "abcde", 5, 0, 2);
+    test("abcde", 2, 2, "abcde", 5, 1, 2);
+    test("abcde", 2, 2, "abcde", 6, 0, 0);
+    test("abcde", 2, 2, "abcdefghij", 0, 0, 2);
+    test("abcde", 2, 2, "abcdefghij", 0, 1, 2);
+    test("abcde", 2, 2, "abcdefghij", 0, 5, 2);
+    test("abcde", 2, 2, "abcdefghij", 0, 9, 2);
+    test("abcde", 2, 2, "abcdefghij", 0, 10, 2);
+    test("abcde", 2, 2, "abcdefghij", 0, 11, 2);
+    test("abcde", 2, 2, "abcdefghij", 1, 0, 2);
+    test("abcde", 2, 2, "abcdefghij", 1, 1, 1);
+    test("abcde", 2, 2, "abcdefghij", 1, 4, 1);
+    test("abcde", 2, 2, "abcdefghij", 1, 8, 1);
+    test("abcde", 2, 2, "abcdefghij", 1, 9, 1);
+    test("abcde", 2, 2, "abcdefghij", 1, 10, 1);
+    test("abcde", 2, 2, "abcdefghij", 5, 0, 2);
+    test("abcde", 2, 2, "abcdefghij", 5, 1, -3);
+    test("abcde", 2, 2, "abcdefghij", 5, 2, -3);
+    test("abcde", 2, 2, "abcdefghij", 5, 4, -3);
+}
+
+void test13()
+{
+    test("abcde", 2, 2, "abcdefghij", 5, 5, -3);
+    test("abcde", 2, 2, "abcdefghij", 5, 6, -3);
+    test("abcde", 2, 2, "abcdefghij", 9, 0, 2);
+    test("abcde", 2, 2, "abcdefghij", 9, 1, -7);
+    test("abcde", 2, 2, "abcdefghij", 9, 2, -7);
+    test("abcde", 2, 2, "abcdefghij", 10, 0, 2);
+    test("abcde", 2, 2, "abcdefghij", 10, 1, 2);
+    test("abcde", 2, 2, "abcdefghij", 11, 0, 0);
+    test("abcde", 2, 2, "abcdefghijklmnopqrst", 0, 0, 2);
+    test("abcde", 2, 2, "abcdefghijklmnopqrst", 0, 1, 2);
+    test("abcde", 2, 2, "abcdefghijklmnopqrst", 0, 10, 2);
+    test("abcde", 2, 2, "abcdefghijklmnopqrst", 0, 19, 2);
+    test("abcde", 2, 2, "abcdefghijklmnopqrst", 0, 20, 2);
+    test("abcde", 2, 2, "abcdefghijklmnopqrst", 0, 21, 2);
+    test("abcde", 2, 2, "abcdefghijklmnopqrst", 1, 0, 2);
+    test("abcde", 2, 2, "abcdefghijklmnopqrst", 1, 1, 1);
+    test("abcde", 2, 2, "abcdefghijklmnopqrst", 1, 9, 1);
+    test("abcde", 2, 2, "abcdefghijklmnopqrst", 1, 18, 1);
+    test("abcde", 2, 2, "abcdefghijklmnopqrst", 1, 19, 1);
+    test("abcde", 2, 2, "abcdefghijklmnopqrst", 1, 20, 1);
+    test("abcde", 2, 2, "abcdefghijklmnopqrst", 10, 0, 2);
+    test("abcde", 2, 2, "abcdefghijklmnopqrst", 10, 1, -8);
+    test("abcde", 2, 2, "abcdefghijklmnopqrst", 10, 5, -8);
+    test("abcde", 2, 2, "abcdefghijklmnopqrst", 10, 9, -8);
+    test("abcde", 2, 2, "abcdefghijklmnopqrst", 10, 10, -8);
+    test("abcde", 2, 2, "abcdefghijklmnopqrst", 10, 11, -8);
+    test("abcde", 2, 2, "abcdefghijklmnopqrst", 19, 0, 2);
+    test("abcde", 2, 2, "abcdefghijklmnopqrst", 19, 1, -17);
+    test("abcde", 2, 2, "abcdefghijklmnopqrst", 19, 2, -17);
+    test("abcde", 2, 2, "abcdefghijklmnopqrst", 20, 0, 2);
+    test("abcde", 2, 2, "abcdefghijklmnopqrst", 20, 1, 2);
+    test("abcde", 2, 2, "abcdefghijklmnopqrst", 21, 0, 0);
+    test("abcde", 2, 3, "", 0, 0, 3);
+    test("abcde", 2, 3, "", 0, 1, 3);
+    test("abcde", 2, 3, "", 1, 0, 0);
+    test("abcde", 2, 3, "abcde", 0, 0, 3);
+    test("abcde", 2, 3, "abcde", 0, 1, 2);
+    test("abcde", 2, 3, "abcde", 0, 2, 2);
+    test("abcde", 2, 3, "abcde", 0, 4, 2);
+    test("abcde", 2, 3, "abcde", 0, 5, 2);
+    test("abcde", 2, 3, "abcde", 0, 6, 2);
+    test("abcde", 2, 3, "abcde", 1, 0, 3);
+    test("abcde", 2, 3, "abcde", 1, 1, 1);
+    test("abcde", 2, 3, "abcde", 1, 2, 1);
+    test("abcde", 2, 3, "abcde", 1, 3, 1);
+    test("abcde", 2, 3, "abcde", 1, 4, 1);
+    test("abcde", 2, 3, "abcde", 1, 5, 1);
+    test("abcde", 2, 3, "abcde", 2, 0, 3);
+    test("abcde", 2, 3, "abcde", 2, 1, 2);
+    test("abcde", 2, 3, "abcde", 2, 2, 1);
+    test("abcde", 2, 3, "abcde", 2, 3, 0);
+    test("abcde", 2, 3, "abcde", 2, 4, 0);
+    test("abcde", 2, 3, "abcde", 4, 0, 3);
+    test("abcde", 2, 3, "abcde", 4, 1, -2);
+    test("abcde", 2, 3, "abcde", 4, 2, -2);
+    test("abcde", 2, 3, "abcde", 5, 0, 3);
+    test("abcde", 2, 3, "abcde", 5, 1, 3);
+    test("abcde", 2, 3, "abcde", 6, 0, 0);
+    test("abcde", 2, 3, "abcdefghij", 0, 0, 3);
+    test("abcde", 2, 3, "abcdefghij", 0, 1, 2);
+    test("abcde", 2, 3, "abcdefghij", 0, 5, 2);
+    test("abcde", 2, 3, "abcdefghij", 0, 9, 2);
+    test("abcde", 2, 3, "abcdefghij", 0, 10, 2);
+    test("abcde", 2, 3, "abcdefghij", 0, 11, 2);
+    test("abcde", 2, 3, "abcdefghij", 1, 0, 3);
+    test("abcde", 2, 3, "abcdefghij", 1, 1, 1);
+    test("abcde", 2, 3, "abcdefghij", 1, 4, 1);
+    test("abcde", 2, 3, "abcdefghij", 1, 8, 1);
+    test("abcde", 2, 3, "abcdefghij", 1, 9, 1);
+    test("abcde", 2, 3, "abcdefghij", 1, 10, 1);
+    test("abcde", 2, 3, "abcdefghij", 5, 0, 3);
+    test("abcde", 2, 3, "abcdefghij", 5, 1, -3);
+    test("abcde", 2, 3, "abcdefghij", 5, 2, -3);
+    test("abcde", 2, 3, "abcdefghij", 5, 4, -3);
+    test("abcde", 2, 3, "abcdefghij", 5, 5, -3);
+    test("abcde", 2, 3, "abcdefghij", 5, 6, -3);
+    test("abcde", 2, 3, "abcdefghij", 9, 0, 3);
+    test("abcde", 2, 3, "abcdefghij", 9, 1, -7);
+    test("abcde", 2, 3, "abcdefghij", 9, 2, -7);
+    test("abcde", 2, 3, "abcdefghij", 10, 0, 3);
+    test("abcde", 2, 3, "abcdefghij", 10, 1, 3);
+    test("abcde", 2, 3, "abcdefghij", 11, 0, 0);
+    test("abcde", 2, 3, "abcdefghijklmnopqrst", 0, 0, 3);
+    test("abcde", 2, 3, "abcdefghijklmnopqrst", 0, 1, 2);
+    test("abcde", 2, 3, "abcdefghijklmnopqrst", 0, 10, 2);
+    test("abcde", 2, 3, "abcdefghijklmnopqrst", 0, 19, 2);
+    test("abcde", 2, 3, "abcdefghijklmnopqrst", 0, 20, 2);
+    test("abcde", 2, 3, "abcdefghijklmnopqrst", 0, 21, 2);
+    test("abcde", 2, 3, "abcdefghijklmnopqrst", 1, 0, 3);
+    test("abcde", 2, 3, "abcdefghijklmnopqrst", 1, 1, 1);
+    test("abcde", 2, 3, "abcdefghijklmnopqrst", 1, 9, 1);
+    test("abcde", 2, 3, "abcdefghijklmnopqrst", 1, 18, 1);
+    test("abcde", 2, 3, "abcdefghijklmnopqrst", 1, 19, 1);
+    test("abcde", 2, 3, "abcdefghijklmnopqrst", 1, 20, 1);
+    test("abcde", 2, 3, "abcdefghijklmnopqrst", 10, 0, 3);
+    test("abcde", 2, 3, "abcdefghijklmnopqrst", 10, 1, -8);
+    test("abcde", 2, 3, "abcdefghijklmnopqrst", 10, 5, -8);
+    test("abcde", 2, 3, "abcdefghijklmnopqrst", 10, 9, -8);
+    test("abcde", 2, 3, "abcdefghijklmnopqrst", 10, 10, -8);
+    test("abcde", 2, 3, "abcdefghijklmnopqrst", 10, 11, -8);
+}
+
+void test14()
+{
+    test("abcde", 2, 3, "abcdefghijklmnopqrst", 19, 0, 3);
+    test("abcde", 2, 3, "abcdefghijklmnopqrst", 19, 1, -17);
+    test("abcde", 2, 3, "abcdefghijklmnopqrst", 19, 2, -17);
+    test("abcde", 2, 3, "abcdefghijklmnopqrst", 20, 0, 3);
+    test("abcde", 2, 3, "abcdefghijklmnopqrst", 20, 1, 3);
+    test("abcde", 2, 3, "abcdefghijklmnopqrst", 21, 0, 0);
+    test("abcde", 2, 4, "", 0, 0, 3);
+    test("abcde", 2, 4, "", 0, 1, 3);
+    test("abcde", 2, 4, "", 1, 0, 0);
+    test("abcde", 2, 4, "abcde", 0, 0, 3);
+    test("abcde", 2, 4, "abcde", 0, 1, 2);
+    test("abcde", 2, 4, "abcde", 0, 2, 2);
+    test("abcde", 2, 4, "abcde", 0, 4, 2);
+    test("abcde", 2, 4, "abcde", 0, 5, 2);
+    test("abcde", 2, 4, "abcde", 0, 6, 2);
+    test("abcde", 2, 4, "abcde", 1, 0, 3);
+    test("abcde", 2, 4, "abcde", 1, 1, 1);
+    test("abcde", 2, 4, "abcde", 1, 2, 1);
+    test("abcde", 2, 4, "abcde", 1, 3, 1);
+    test("abcde", 2, 4, "abcde", 1, 4, 1);
+    test("abcde", 2, 4, "abcde", 1, 5, 1);
+    test("abcde", 2, 4, "abcde", 2, 0, 3);
+    test("abcde", 2, 4, "abcde", 2, 1, 2);
+    test("abcde", 2, 4, "abcde", 2, 2, 1);
+    test("abcde", 2, 4, "abcde", 2, 3, 0);
+    test("abcde", 2, 4, "abcde", 2, 4, 0);
+    test("abcde", 2, 4, "abcde", 4, 0, 3);
+    test("abcde", 2, 4, "abcde", 4, 1, -2);
+    test("abcde", 2, 4, "abcde", 4, 2, -2);
+    test("abcde", 2, 4, "abcde", 5, 0, 3);
+    test("abcde", 2, 4, "abcde", 5, 1, 3);
+    test("abcde", 2, 4, "abcde", 6, 0, 0);
+    test("abcde", 2, 4, "abcdefghij", 0, 0, 3);
+    test("abcde", 2, 4, "abcdefghij", 0, 1, 2);
+    test("abcde", 2, 4, "abcdefghij", 0, 5, 2);
+    test("abcde", 2, 4, "abcdefghij", 0, 9, 2);
+    test("abcde", 2, 4, "abcdefghij", 0, 10, 2);
+    test("abcde", 2, 4, "abcdefghij", 0, 11, 2);
+    test("abcde", 2, 4, "abcdefghij", 1, 0, 3);
+    test("abcde", 2, 4, "abcdefghij", 1, 1, 1);
+    test("abcde", 2, 4, "abcdefghij", 1, 4, 1);
+    test("abcde", 2, 4, "abcdefghij", 1, 8, 1);
+    test("abcde", 2, 4, "abcdefghij", 1, 9, 1);
+    test("abcde", 2, 4, "abcdefghij", 1, 10, 1);
+    test("abcde", 2, 4, "abcdefghij", 5, 0, 3);
+    test("abcde", 2, 4, "abcdefghij", 5, 1, -3);
+    test("abcde", 2, 4, "abcdefghij", 5, 2, -3);
+    test("abcde", 2, 4, "abcdefghij", 5, 4, -3);
+    test("abcde", 2, 4, "abcdefghij", 5, 5, -3);
+    test("abcde", 2, 4, "abcdefghij", 5, 6, -3);
+    test("abcde", 2, 4, "abcdefghij", 9, 0, 3);
+    test("abcde", 2, 4, "abcdefghij", 9, 1, -7);
+    test("abcde", 2, 4, "abcdefghij", 9, 2, -7);
+    test("abcde", 2, 4, "abcdefghij", 10, 0, 3);
+    test("abcde", 2, 4, "abcdefghij", 10, 1, 3);
+    test("abcde", 2, 4, "abcdefghij", 11, 0, 0);
+    test("abcde", 2, 4, "abcdefghijklmnopqrst", 0, 0, 3);
+    test("abcde", 2, 4, "abcdefghijklmnopqrst", 0, 1, 2);
+    test("abcde", 2, 4, "abcdefghijklmnopqrst", 0, 10, 2);
+    test("abcde", 2, 4, "abcdefghijklmnopqrst", 0, 19, 2);
+    test("abcde", 2, 4, "abcdefghijklmnopqrst", 0, 20, 2);
+    test("abcde", 2, 4, "abcdefghijklmnopqrst", 0, 21, 2);
+    test("abcde", 2, 4, "abcdefghijklmnopqrst", 1, 0, 3);
+    test("abcde", 2, 4, "abcdefghijklmnopqrst", 1, 1, 1);
+    test("abcde", 2, 4, "abcdefghijklmnopqrst", 1, 9, 1);
+    test("abcde", 2, 4, "abcdefghijklmnopqrst", 1, 18, 1);
+    test("abcde", 2, 4, "abcdefghijklmnopqrst", 1, 19, 1);
+    test("abcde", 2, 4, "abcdefghijklmnopqrst", 1, 20, 1);
+    test("abcde", 2, 4, "abcdefghijklmnopqrst", 10, 0, 3);
+    test("abcde", 2, 4, "abcdefghijklmnopqrst", 10, 1, -8);
+    test("abcde", 2, 4, "abcdefghijklmnopqrst", 10, 5, -8);
+    test("abcde", 2, 4, "abcdefghijklmnopqrst", 10, 9, -8);
+    test("abcde", 2, 4, "abcdefghijklmnopqrst", 10, 10, -8);
+    test("abcde", 2, 4, "abcdefghijklmnopqrst", 10, 11, -8);
+    test("abcde", 2, 4, "abcdefghijklmnopqrst", 19, 0, 3);
+    test("abcde", 2, 4, "abcdefghijklmnopqrst", 19, 1, -17);
+    test("abcde", 2, 4, "abcdefghijklmnopqrst", 19, 2, -17);
+    test("abcde", 2, 4, "abcdefghijklmnopqrst", 20, 0, 3);
+    test("abcde", 2, 4, "abcdefghijklmnopqrst", 20, 1, 3);
+    test("abcde", 2, 4, "abcdefghijklmnopqrst", 21, 0, 0);
+    test("abcde", 4, 0, "", 0, 0, 0);
+    test("abcde", 4, 0, "", 0, 1, 0);
+    test("abcde", 4, 0, "", 1, 0, 0);
+    test("abcde", 4, 0, "abcde", 0, 0, 0);
+    test("abcde", 4, 0, "abcde", 0, 1, -1);
+    test("abcde", 4, 0, "abcde", 0, 2, -2);
+    test("abcde", 4, 0, "abcde", 0, 4, -4);
+    test("abcde", 4, 0, "abcde", 0, 5, -5);
+    test("abcde", 4, 0, "abcde", 0, 6, -5);
+    test("abcde", 4, 0, "abcde", 1, 0, 0);
+    test("abcde", 4, 0, "abcde", 1, 1, -1);
+    test("abcde", 4, 0, "abcde", 1, 2, -2);
+    test("abcde", 4, 0, "abcde", 1, 3, -3);
+    test("abcde", 4, 0, "abcde", 1, 4, -4);
+    test("abcde", 4, 0, "abcde", 1, 5, -4);
+    test("abcde", 4, 0, "abcde", 2, 0, 0);
+    test("abcde", 4, 0, "abcde", 2, 1, -1);
+    test("abcde", 4, 0, "abcde", 2, 2, -2);
+    test("abcde", 4, 0, "abcde", 2, 3, -3);
+    test("abcde", 4, 0, "abcde", 2, 4, -3);
+}
+
+void test15()
+{
+    test("abcde", 4, 0, "abcde", 4, 0, 0);
+    test("abcde", 4, 0, "abcde", 4, 1, -1);
+    test("abcde", 4, 0, "abcde", 4, 2, -1);
+    test("abcde", 4, 0, "abcde", 5, 0, 0);
+    test("abcde", 4, 0, "abcde", 5, 1, 0);
+    test("abcde", 4, 0, "abcde", 6, 0, 0);
+    test("abcde", 4, 0, "abcdefghij", 0, 0, 0);
+    test("abcde", 4, 0, "abcdefghij", 0, 1, -1);
+    test("abcde", 4, 0, "abcdefghij", 0, 5, -5);
+    test("abcde", 4, 0, "abcdefghij", 0, 9, -9);
+    test("abcde", 4, 0, "abcdefghij", 0, 10, -10);
+    test("abcde", 4, 0, "abcdefghij", 0, 11, -10);
+    test("abcde", 4, 0, "abcdefghij", 1, 0, 0);
+    test("abcde", 4, 0, "abcdefghij", 1, 1, -1);
+    test("abcde", 4, 0, "abcdefghij", 1, 4, -4);
+    test("abcde", 4, 0, "abcdefghij", 1, 8, -8);
+    test("abcde", 4, 0, "abcdefghij", 1, 9, -9);
+    test("abcde", 4, 0, "abcdefghij", 1, 10, -9);
+    test("abcde", 4, 0, "abcdefghij", 5, 0, 0);
+    test("abcde", 4, 0, "abcdefghij", 5, 1, -1);
+    test("abcde", 4, 0, "abcdefghij", 5, 2, -2);
+    test("abcde", 4, 0, "abcdefghij", 5, 4, -4);
+    test("abcde", 4, 0, "abcdefghij", 5, 5, -5);
+    test("abcde", 4, 0, "abcdefghij", 5, 6, -5);
+    test("abcde", 4, 0, "abcdefghij", 9, 0, 0);
+    test("abcde", 4, 0, "abcdefghij", 9, 1, -1);
+    test("abcde", 4, 0, "abcdefghij", 9, 2, -1);
+    test("abcde", 4, 0, "abcdefghij", 10, 0, 0);
+    test("abcde", 4, 0, "abcdefghij", 10, 1, 0);
+    test("abcde", 4, 0, "abcdefghij", 11, 0, 0);
+    test("abcde", 4, 0, "abcdefghijklmnopqrst", 0, 0, 0);
+    test("abcde", 4, 0, "abcdefghijklmnopqrst", 0, 1, -1);
+    test("abcde", 4, 0, "abcdefghijklmnopqrst", 0, 10, -10);
+    test("abcde", 4, 0, "abcdefghijklmnopqrst", 0, 19, -19);
+    test("abcde", 4, 0, "abcdefghijklmnopqrst", 0, 20, -20);
+    test("abcde", 4, 0, "abcdefghijklmnopqrst", 0, 21, -20);
+    test("abcde", 4, 0, "abcdefghijklmnopqrst", 1, 0, 0);
+    test("abcde", 4, 0, "abcdefghijklmnopqrst", 1, 1, -1);
+    test("abcde", 4, 0, "abcdefghijklmnopqrst", 1, 9, -9);
+    test("abcde", 4, 0, "abcdefghijklmnopqrst", 1, 18, -18);
+    test("abcde", 4, 0, "abcdefghijklmnopqrst", 1, 19, -19);
+    test("abcde", 4, 0, "abcdefghijklmnopqrst", 1, 20, -19);
+    test("abcde", 4, 0, "abcdefghijklmnopqrst", 10, 0, 0);
+    test("abcde", 4, 0, "abcdefghijklmnopqrst", 10, 1, -1);
+    test("abcde", 4, 0, "abcdefghijklmnopqrst", 10, 5, -5);
+    test("abcde", 4, 0, "abcdefghijklmnopqrst", 10, 9, -9);
+    test("abcde", 4, 0, "abcdefghijklmnopqrst", 10, 10, -10);
+    test("abcde", 4, 0, "abcdefghijklmnopqrst", 10, 11, -10);
+    test("abcde", 4, 0, "abcdefghijklmnopqrst", 19, 0, 0);
+    test("abcde", 4, 0, "abcdefghijklmnopqrst", 19, 1, -1);
+    test("abcde", 4, 0, "abcdefghijklmnopqrst", 19, 2, -1);
+    test("abcde", 4, 0, "abcdefghijklmnopqrst", 20, 0, 0);
+    test("abcde", 4, 0, "abcdefghijklmnopqrst", 20, 1, 0);
+    test("abcde", 4, 0, "abcdefghijklmnopqrst", 21, 0, 0);
+    test("abcde", 4, 1, "", 0, 0, 1);
+    test("abcde", 4, 1, "", 0, 1, 1);
+    test("abcde", 4, 1, "", 1, 0, 0);
+    test("abcde", 4, 1, "abcde", 0, 0, 1);
+    test("abcde", 4, 1, "abcde", 0, 1, 4);
+    test("abcde", 4, 1, "abcde", 0, 2, 4);
+    test("abcde", 4, 1, "abcde", 0, 4, 4);
+    test("abcde", 4, 1, "abcde", 0, 5, 4);
+    test("abcde", 4, 1, "abcde", 0, 6, 4);
+    test("abcde", 4, 1, "abcde", 1, 0, 1);
+    test("abcde", 4, 1, "abcde", 1, 1, 3);
+    test("abcde", 4, 1, "abcde", 1, 2, 3);
+    test("abcde", 4, 1, "abcde", 1, 3, 3);
+    test("abcde", 4, 1, "abcde", 1, 4, 3);
+    test("abcde", 4, 1, "abcde", 1, 5, 3);
+    test("abcde", 4, 1, "abcde", 2, 0, 1);
+    test("abcde", 4, 1, "abcde", 2, 1, 2);
+    test("abcde", 4, 1, "abcde", 2, 2, 2);
+    test("abcde", 4, 1, "abcde", 2, 3, 2);
+    test("abcde", 4, 1, "abcde", 2, 4, 2);
+    test("abcde", 4, 1, "abcde", 4, 0, 1);
+    test("abcde", 4, 1, "abcde", 4, 1, 0);
+    test("abcde", 4, 1, "abcde", 4, 2, 0);
+    test("abcde", 4, 1, "abcde", 5, 0, 1);
+    test("abcde", 4, 1, "abcde", 5, 1, 1);
+    test("abcde", 4, 1, "abcde", 6, 0, 0);
+    test("abcde", 4, 1, "abcdefghij", 0, 0, 1);
+    test("abcde", 4, 1, "abcdefghij", 0, 1, 4);
+    test("abcde", 4, 1, "abcdefghij", 0, 5, 4);
+    test("abcde", 4, 1, "abcdefghij", 0, 9, 4);
+    test("abcde", 4, 1, "abcdefghij", 0, 10, 4);
+    test("abcde", 4, 1, "abcdefghij", 0, 11, 4);
+    test("abcde", 4, 1, "abcdefghij", 1, 0, 1);
+    test("abcde", 4, 1, "abcdefghij", 1, 1, 3);
+    test("abcde", 4, 1, "abcdefghij", 1, 4, 3);
+    test("abcde", 4, 1, "abcdefghij", 1, 8, 3);
+    test("abcde", 4, 1, "abcdefghij", 1, 9, 3);
+    test("abcde", 4, 1, "abcdefghij", 1, 10, 3);
+    test("abcde", 4, 1, "abcdefghij", 5, 0, 1);
+    test("abcde", 4, 1, "abcdefghij", 5, 1, -1);
+    test("abcde", 4, 1, "abcdefghij", 5, 2, -1);
+    test("abcde", 4, 1, "abcdefghij", 5, 4, -1);
+    test("abcde", 4, 1, "abcdefghij", 5, 5, -1);
+    test("abcde", 4, 1, "abcdefghij", 5, 6, -1);
+    test("abcde", 4, 1, "abcdefghij", 9, 0, 1);
+    test("abcde", 4, 1, "abcdefghij", 9, 1, -5);
+}
+
+void test16()
+{
+    test("abcde", 4, 1, "abcdefghij", 9, 2, -5);
+    test("abcde", 4, 1, "abcdefghij", 10, 0, 1);
+    test("abcde", 4, 1, "abcdefghij", 10, 1, 1);
+    test("abcde", 4, 1, "abcdefghij", 11, 0, 0);
+    test("abcde", 4, 1, "abcdefghijklmnopqrst", 0, 0, 1);
+    test("abcde", 4, 1, "abcdefghijklmnopqrst", 0, 1, 4);
+    test("abcde", 4, 1, "abcdefghijklmnopqrst", 0, 10, 4);
+    test("abcde", 4, 1, "abcdefghijklmnopqrst", 0, 19, 4);
+    test("abcde", 4, 1, "abcdefghijklmnopqrst", 0, 20, 4);
+    test("abcde", 4, 1, "abcdefghijklmnopqrst", 0, 21, 4);
+    test("abcde", 4, 1, "abcdefghijklmnopqrst", 1, 0, 1);
+    test("abcde", 4, 1, "abcdefghijklmnopqrst", 1, 1, 3);
+    test("abcde", 4, 1, "abcdefghijklmnopqrst", 1, 9, 3);
+    test("abcde", 4, 1, "abcdefghijklmnopqrst", 1, 18, 3);
+    test("abcde", 4, 1, "abcdefghijklmnopqrst", 1, 19, 3);
+    test("abcde", 4, 1, "abcdefghijklmnopqrst", 1, 20, 3);
+    test("abcde", 4, 1, "abcdefghijklmnopqrst", 10, 0, 1);
+    test("abcde", 4, 1, "abcdefghijklmnopqrst", 10, 1, -6);
+    test("abcde", 4, 1, "abcdefghijklmnopqrst", 10, 5, -6);
+    test("abcde", 4, 1, "abcdefghijklmnopqrst", 10, 9, -6);
+    test("abcde", 4, 1, "abcdefghijklmnopqrst", 10, 10, -6);
+    test("abcde", 4, 1, "abcdefghijklmnopqrst", 10, 11, -6);
+    test("abcde", 4, 1, "abcdefghijklmnopqrst", 19, 0, 1);
+    test("abcde", 4, 1, "abcdefghijklmnopqrst", 19, 1, -15);
+    test("abcde", 4, 1, "abcdefghijklmnopqrst", 19, 2, -15);
+    test("abcde", 4, 1, "abcdefghijklmnopqrst", 20, 0, 1);
+    test("abcde", 4, 1, "abcdefghijklmnopqrst", 20, 1, 1);
+    test("abcde", 4, 1, "abcdefghijklmnopqrst", 21, 0, 0);
+    test("abcde", 4, 2, "", 0, 0, 1);
+    test("abcde", 4, 2, "", 0, 1, 1);
+    test("abcde", 4, 2, "", 1, 0, 0);
+    test("abcde", 4, 2, "abcde", 0, 0, 1);
+    test("abcde", 4, 2, "abcde", 0, 1, 4);
+    test("abcde", 4, 2, "abcde", 0, 2, 4);
+    test("abcde", 4, 2, "abcde", 0, 4, 4);
+    test("abcde", 4, 2, "abcde", 0, 5, 4);
+    test("abcde", 4, 2, "abcde", 0, 6, 4);
+    test("abcde", 4, 2, "abcde", 1, 0, 1);
+    test("abcde", 4, 2, "abcde", 1, 1, 3);
+    test("abcde", 4, 2, "abcde", 1, 2, 3);
+    test("abcde", 4, 2, "abcde", 1, 3, 3);
+    test("abcde", 4, 2, "abcde", 1, 4, 3);
+    test("abcde", 4, 2, "abcde", 1, 5, 3);
+    test("abcde", 4, 2, "abcde", 2, 0, 1);
+    test("abcde", 4, 2, "abcde", 2, 1, 2);
+    test("abcde", 4, 2, "abcde", 2, 2, 2);
+    test("abcde", 4, 2, "abcde", 2, 3, 2);
+    test("abcde", 4, 2, "abcde", 2, 4, 2);
+    test("abcde", 4, 2, "abcde", 4, 0, 1);
+    test("abcde", 4, 2, "abcde", 4, 1, 0);
+    test("abcde", 4, 2, "abcde", 4, 2, 0);
+    test("abcde", 4, 2, "abcde", 5, 0, 1);
+    test("abcde", 4, 2, "abcde", 5, 1, 1);
+    test("abcde", 4, 2, "abcde", 6, 0, 0);
+    test("abcde", 4, 2, "abcdefghij", 0, 0, 1);
+    test("abcde", 4, 2, "abcdefghij", 0, 1, 4);
+    test("abcde", 4, 2, "abcdefghij", 0, 5, 4);
+    test("abcde", 4, 2, "abcdefghij", 0, 9, 4);
+    test("abcde", 4, 2, "abcdefghij", 0, 10, 4);
+    test("abcde", 4, 2, "abcdefghij", 0, 11, 4);
+    test("abcde", 4, 2, "abcdefghij", 1, 0, 1);
+    test("abcde", 4, 2, "abcdefghij", 1, 1, 3);
+    test("abcde", 4, 2, "abcdefghij", 1, 4, 3);
+    test("abcde", 4, 2, "abcdefghij", 1, 8, 3);
+    test("abcde", 4, 2, "abcdefghij", 1, 9, 3);
+    test("abcde", 4, 2, "abcdefghij", 1, 10, 3);
+    test("abcde", 4, 2, "abcdefghij", 5, 0, 1);
+    test("abcde", 4, 2, "abcdefghij", 5, 1, -1);
+    test("abcde", 4, 2, "abcdefghij", 5, 2, -1);
+    test("abcde", 4, 2, "abcdefghij", 5, 4, -1);
+    test("abcde", 4, 2, "abcdefghij", 5, 5, -1);
+    test("abcde", 4, 2, "abcdefghij", 5, 6, -1);
+    test("abcde", 4, 2, "abcdefghij", 9, 0, 1);
+    test("abcde", 4, 2, "abcdefghij", 9, 1, -5);
+    test("abcde", 4, 2, "abcdefghij", 9, 2, -5);
+    test("abcde", 4, 2, "abcdefghij", 10, 0, 1);
+    test("abcde", 4, 2, "abcdefghij", 10, 1, 1);
+    test("abcde", 4, 2, "abcdefghij", 11, 0, 0);
+    test("abcde", 4, 2, "abcdefghijklmnopqrst", 0, 0, 1);
+    test("abcde", 4, 2, "abcdefghijklmnopqrst", 0, 1, 4);
+    test("abcde", 4, 2, "abcdefghijklmnopqrst", 0, 10, 4);
+    test("abcde", 4, 2, "abcdefghijklmnopqrst", 0, 19, 4);
+    test("abcde", 4, 2, "abcdefghijklmnopqrst", 0, 20, 4);
+    test("abcde", 4, 2, "abcdefghijklmnopqrst", 0, 21, 4);
+    test("abcde", 4, 2, "abcdefghijklmnopqrst", 1, 0, 1);
+    test("abcde", 4, 2, "abcdefghijklmnopqrst", 1, 1, 3);
+    test("abcde", 4, 2, "abcdefghijklmnopqrst", 1, 9, 3);
+    test("abcde", 4, 2, "abcdefghijklmnopqrst", 1, 18, 3);
+    test("abcde", 4, 2, "abcdefghijklmnopqrst", 1, 19, 3);
+    test("abcde", 4, 2, "abcdefghijklmnopqrst", 1, 20, 3);
+    test("abcde", 4, 2, "abcdefghijklmnopqrst", 10, 0, 1);
+    test("abcde", 4, 2, "abcdefghijklmnopqrst", 10, 1, -6);
+    test("abcde", 4, 2, "abcdefghijklmnopqrst", 10, 5, -6);
+    test("abcde", 4, 2, "abcdefghijklmnopqrst", 10, 9, -6);
+    test("abcde", 4, 2, "abcdefghijklmnopqrst", 10, 10, -6);
+    test("abcde", 4, 2, "abcdefghijklmnopqrst", 10, 11, -6);
+    test("abcde", 4, 2, "abcdefghijklmnopqrst", 19, 0, 1);
+    test("abcde", 4, 2, "abcdefghijklmnopqrst", 19, 1, -15);
+    test("abcde", 4, 2, "abcdefghijklmnopqrst", 19, 2, -15);
+    test("abcde", 4, 2, "abcdefghijklmnopqrst", 20, 0, 1);
+}
+
+void test17()
+{
+    test("abcde", 4, 2, "abcdefghijklmnopqrst", 20, 1, 1);
+    test("abcde", 4, 2, "abcdefghijklmnopqrst", 21, 0, 0);
+    test("abcde", 5, 0, "", 0, 0, 0);
+    test("abcde", 5, 0, "", 0, 1, 0);
+    test("abcde", 5, 0, "", 1, 0, 0);
+    test("abcde", 5, 0, "abcde", 0, 0, 0);
+    test("abcde", 5, 0, "abcde", 0, 1, -1);
+    test("abcde", 5, 0, "abcde", 0, 2, -2);
+    test("abcde", 5, 0, "abcde", 0, 4, -4);
+    test("abcde", 5, 0, "abcde", 0, 5, -5);
+    test("abcde", 5, 0, "abcde", 0, 6, -5);
+    test("abcde", 5, 0, "abcde", 1, 0, 0);
+    test("abcde", 5, 0, "abcde", 1, 1, -1);
+    test("abcde", 5, 0, "abcde", 1, 2, -2);
+    test("abcde", 5, 0, "abcde", 1, 3, -3);
+    test("abcde", 5, 0, "abcde", 1, 4, -4);
+    test("abcde", 5, 0, "abcde", 1, 5, -4);
+    test("abcde", 5, 0, "abcde", 2, 0, 0);
+    test("abcde", 5, 0, "abcde", 2, 1, -1);
+    test("abcde", 5, 0, "abcde", 2, 2, -2);
+    test("abcde", 5, 0, "abcde", 2, 3, -3);
+    test("abcde", 5, 0, "abcde", 2, 4, -3);
+    test("abcde", 5, 0, "abcde", 4, 0, 0);
+    test("abcde", 5, 0, "abcde", 4, 1, -1);
+    test("abcde", 5, 0, "abcde", 4, 2, -1);
+    test("abcde", 5, 0, "abcde", 5, 0, 0);
+    test("abcde", 5, 0, "abcde", 5, 1, 0);
+    test("abcde", 5, 0, "abcde", 6, 0, 0);
+    test("abcde", 5, 0, "abcdefghij", 0, 0, 0);
+    test("abcde", 5, 0, "abcdefghij", 0, 1, -1);
+    test("abcde", 5, 0, "abcdefghij", 0, 5, -5);
+    test("abcde", 5, 0, "abcdefghij", 0, 9, -9);
+    test("abcde", 5, 0, "abcdefghij", 0, 10, -10);
+    test("abcde", 5, 0, "abcdefghij", 0, 11, -10);
+    test("abcde", 5, 0, "abcdefghij", 1, 0, 0);
+    test("abcde", 5, 0, "abcdefghij", 1, 1, -1);
+    test("abcde", 5, 0, "abcdefghij", 1, 4, -4);
+    test("abcde", 5, 0, "abcdefghij", 1, 8, -8);
+    test("abcde", 5, 0, "abcdefghij", 1, 9, -9);
+    test("abcde", 5, 0, "abcdefghij", 1, 10, -9);
+    test("abcde", 5, 0, "abcdefghij", 5, 0, 0);
+    test("abcde", 5, 0, "abcdefghij", 5, 1, -1);
+    test("abcde", 5, 0, "abcdefghij", 5, 2, -2);
+    test("abcde", 5, 0, "abcdefghij", 5, 4, -4);
+    test("abcde", 5, 0, "abcdefghij", 5, 5, -5);
+    test("abcde", 5, 0, "abcdefghij", 5, 6, -5);
+    test("abcde", 5, 0, "abcdefghij", 9, 0, 0);
+    test("abcde", 5, 0, "abcdefghij", 9, 1, -1);
+    test("abcde", 5, 0, "abcdefghij", 9, 2, -1);
+    test("abcde", 5, 0, "abcdefghij", 10, 0, 0);
+    test("abcde", 5, 0, "abcdefghij", 10, 1, 0);
+    test("abcde", 5, 0, "abcdefghij", 11, 0, 0);
+    test("abcde", 5, 0, "abcdefghijklmnopqrst", 0, 0, 0);
+    test("abcde", 5, 0, "abcdefghijklmnopqrst", 0, 1, -1);
+    test("abcde", 5, 0, "abcdefghijklmnopqrst", 0, 10, -10);
+    test("abcde", 5, 0, "abcdefghijklmnopqrst", 0, 19, -19);
+    test("abcde", 5, 0, "abcdefghijklmnopqrst", 0, 20, -20);
+    test("abcde", 5, 0, "abcdefghijklmnopqrst", 0, 21, -20);
+    test("abcde", 5, 0, "abcdefghijklmnopqrst", 1, 0, 0);
+    test("abcde", 5, 0, "abcdefghijklmnopqrst", 1, 1, -1);
+    test("abcde", 5, 0, "abcdefghijklmnopqrst", 1, 9, -9);
+    test("abcde", 5, 0, "abcdefghijklmnopqrst", 1, 18, -18);
+    test("abcde", 5, 0, "abcdefghijklmnopqrst", 1, 19, -19);
+    test("abcde", 5, 0, "abcdefghijklmnopqrst", 1, 20, -19);
+    test("abcde", 5, 0, "abcdefghijklmnopqrst", 10, 0, 0);
+    test("abcde", 5, 0, "abcdefghijklmnopqrst", 10, 1, -1);
+    test("abcde", 5, 0, "abcdefghijklmnopqrst", 10, 5, -5);
+    test("abcde", 5, 0, "abcdefghijklmnopqrst", 10, 9, -9);
+    test("abcde", 5, 0, "abcdefghijklmnopqrst", 10, 10, -10);
+    test("abcde", 5, 0, "abcdefghijklmnopqrst", 10, 11, -10);
+    test("abcde", 5, 0, "abcdefghijklmnopqrst", 19, 0, 0);
+    test("abcde", 5, 0, "abcdefghijklmnopqrst", 19, 1, -1);
+    test("abcde", 5, 0, "abcdefghijklmnopqrst", 19, 2, -1);
+    test("abcde", 5, 0, "abcdefghijklmnopqrst", 20, 0, 0);
+    test("abcde", 5, 0, "abcdefghijklmnopqrst", 20, 1, 0);
+    test("abcde", 5, 0, "abcdefghijklmnopqrst", 21, 0, 0);
+    test("abcde", 5, 1, "", 0, 0, 0);
+    test("abcde", 5, 1, "", 0, 1, 0);
+    test("abcde", 5, 1, "", 1, 0, 0);
+    test("abcde", 5, 1, "abcde", 0, 0, 0);
+    test("abcde", 5, 1, "abcde", 0, 1, -1);
+    test("abcde", 5, 1, "abcde", 0, 2, -2);
+    test("abcde", 5, 1, "abcde", 0, 4, -4);
+    test("abcde", 5, 1, "abcde", 0, 5, -5);
+    test("abcde", 5, 1, "abcde", 0, 6, -5);
+    test("abcde", 5, 1, "abcde", 1, 0, 0);
+    test("abcde", 5, 1, "abcde", 1, 1, -1);
+    test("abcde", 5, 1, "abcde", 1, 2, -2);
+    test("abcde", 5, 1, "abcde", 1, 3, -3);
+    test("abcde", 5, 1, "abcde", 1, 4, -4);
+    test("abcde", 5, 1, "abcde", 1, 5, -4);
+    test("abcde", 5, 1, "abcde", 2, 0, 0);
+    test("abcde", 5, 1, "abcde", 2, 1, -1);
+    test("abcde", 5, 1, "abcde", 2, 2, -2);
+    test("abcde", 5, 1, "abcde", 2, 3, -3);
+    test("abcde", 5, 1, "abcde", 2, 4, -3);
+    test("abcde", 5, 1, "abcde", 4, 0, 0);
+    test("abcde", 5, 1, "abcde", 4, 1, -1);
+    test("abcde", 5, 1, "abcde", 4, 2, -1);
+    test("abcde", 5, 1, "abcde", 5, 0, 0);
+}
+
+void test18()
+{
+    test("abcde", 5, 1, "abcde", 5, 1, 0);
+    test("abcde", 5, 1, "abcde", 6, 0, 0);
+    test("abcde", 5, 1, "abcdefghij", 0, 0, 0);
+    test("abcde", 5, 1, "abcdefghij", 0, 1, -1);
+    test("abcde", 5, 1, "abcdefghij", 0, 5, -5);
+    test("abcde", 5, 1, "abcdefghij", 0, 9, -9);
+    test("abcde", 5, 1, "abcdefghij", 0, 10, -10);
+    test("abcde", 5, 1, "abcdefghij", 0, 11, -10);
+    test("abcde", 5, 1, "abcdefghij", 1, 0, 0);
+    test("abcde", 5, 1, "abcdefghij", 1, 1, -1);
+    test("abcde", 5, 1, "abcdefghij", 1, 4, -4);
+    test("abcde", 5, 1, "abcdefghij", 1, 8, -8);
+    test("abcde", 5, 1, "abcdefghij", 1, 9, -9);
+    test("abcde", 5, 1, "abcdefghij", 1, 10, -9);
+    test("abcde", 5, 1, "abcdefghij", 5, 0, 0);
+    test("abcde", 5, 1, "abcdefghij", 5, 1, -1);
+    test("abcde", 5, 1, "abcdefghij", 5, 2, -2);
+    test("abcde", 5, 1, "abcdefghij", 5, 4, -4);
+    test("abcde", 5, 1, "abcdefghij", 5, 5, -5);
+    test("abcde", 5, 1, "abcdefghij", 5, 6, -5);
+    test("abcde", 5, 1, "abcdefghij", 9, 0, 0);
+    test("abcde", 5, 1, "abcdefghij", 9, 1, -1);
+    test("abcde", 5, 1, "abcdefghij", 9, 2, -1);
+    test("abcde", 5, 1, "abcdefghij", 10, 0, 0);
+    test("abcde", 5, 1, "abcdefghij", 10, 1, 0);
+    test("abcde", 5, 1, "abcdefghij", 11, 0, 0);
+    test("abcde", 5, 1, "abcdefghijklmnopqrst", 0, 0, 0);
+    test("abcde", 5, 1, "abcdefghijklmnopqrst", 0, 1, -1);
+    test("abcde", 5, 1, "abcdefghijklmnopqrst", 0, 10, -10);
+    test("abcde", 5, 1, "abcdefghijklmnopqrst", 0, 19, -19);
+    test("abcde", 5, 1, "abcdefghijklmnopqrst", 0, 20, -20);
+    test("abcde", 5, 1, "abcdefghijklmnopqrst", 0, 21, -20);
+    test("abcde", 5, 1, "abcdefghijklmnopqrst", 1, 0, 0);
+    test("abcde", 5, 1, "abcdefghijklmnopqrst", 1, 1, -1);
+    test("abcde", 5, 1, "abcdefghijklmnopqrst", 1, 9, -9);
+    test("abcde", 5, 1, "abcdefghijklmnopqrst", 1, 18, -18);
+    test("abcde", 5, 1, "abcdefghijklmnopqrst", 1, 19, -19);
+    test("abcde", 5, 1, "abcdefghijklmnopqrst", 1, 20, -19);
+    test("abcde", 5, 1, "abcdefghijklmnopqrst", 10, 0, 0);
+    test("abcde", 5, 1, "abcdefghijklmnopqrst", 10, 1, -1);
+    test("abcde", 5, 1, "abcdefghijklmnopqrst", 10, 5, -5);
+    test("abcde", 5, 1, "abcdefghijklmnopqrst", 10, 9, -9);
+    test("abcde", 5, 1, "abcdefghijklmnopqrst", 10, 10, -10);
+    test("abcde", 5, 1, "abcdefghijklmnopqrst", 10, 11, -10);
+    test("abcde", 5, 1, "abcdefghijklmnopqrst", 19, 0, 0);
+    test("abcde", 5, 1, "abcdefghijklmnopqrst", 19, 1, -1);
+    test("abcde", 5, 1, "abcdefghijklmnopqrst", 19, 2, -1);
+    test("abcde", 5, 1, "abcdefghijklmnopqrst", 20, 0, 0);
+    test("abcde", 5, 1, "abcdefghijklmnopqrst", 20, 1, 0);
+    test("abcde", 5, 1, "abcdefghijklmnopqrst", 21, 0, 0);
+    test("abcde", 6, 0, "", 0, 0, 0);
+    test("abcde", 6, 0, "", 0, 1, 0);
+    test("abcde", 6, 0, "", 1, 0, 0);
+    test("abcde", 6, 0, "abcde", 0, 0, 0);
+    test("abcde", 6, 0, "abcde", 0, 1, 0);
+    test("abcde", 6, 0, "abcde", 0, 2, 0);
+    test("abcde", 6, 0, "abcde", 0, 4, 0);
+    test("abcde", 6, 0, "abcde", 0, 5, 0);
+    test("abcde", 6, 0, "abcde", 0, 6, 0);
+    test("abcde", 6, 0, "abcde", 1, 0, 0);
+    test("abcde", 6, 0, "abcde", 1, 1, 0);
+    test("abcde", 6, 0, "abcde", 1, 2, 0);
+    test("abcde", 6, 0, "abcde", 1, 3, 0);
+    test("abcde", 6, 0, "abcde", 1, 4, 0);
+    test("abcde", 6, 0, "abcde", 1, 5, 0);
+    test("abcde", 6, 0, "abcde", 2, 0, 0);
+    test("abcde", 6, 0, "abcde", 2, 1, 0);
+    test("abcde", 6, 0, "abcde", 2, 2, 0);
+    test("abcde", 6, 0, "abcde", 2, 3, 0);
+    test("abcde", 6, 0, "abcde", 2, 4, 0);
+    test("abcde", 6, 0, "abcde", 4, 0, 0);
+    test("abcde", 6, 0, "abcde", 4, 1, 0);
+    test("abcde", 6, 0, "abcde", 4, 2, 0);
+    test("abcde", 6, 0, "abcde", 5, 0, 0);
+    test("abcde", 6, 0, "abcde", 5, 1, 0);
+    test("abcde", 6, 0, "abcde", 6, 0, 0);
+    test("abcde", 6, 0, "abcdefghij", 0, 0, 0);
+    test("abcde", 6, 0, "abcdefghij", 0, 1, 0);
+    test("abcde", 6, 0, "abcdefghij", 0, 5, 0);
+    test("abcde", 6, 0, "abcdefghij", 0, 9, 0);
+    test("abcde", 6, 0, "abcdefghij", 0, 10, 0);
+    test("abcde", 6, 0, "abcdefghij", 0, 11, 0);
+    test("abcde", 6, 0, "abcdefghij", 1, 0, 0);
+    test("abcde", 6, 0, "abcdefghij", 1, 1, 0);
+    test("abcde", 6, 0, "abcdefghij", 1, 4, 0);
+    test("abcde", 6, 0, "abcdefghij", 1, 8, 0);
+    test("abcde", 6, 0, "abcdefghij", 1, 9, 0);
+    test("abcde", 6, 0, "abcdefghij", 1, 10, 0);
+    test("abcde", 6, 0, "abcdefghij", 5, 0, 0);
+    test("abcde", 6, 0, "abcdefghij", 5, 1, 0);
+    test("abcde", 6, 0, "abcdefghij", 5, 2, 0);
+    test("abcde", 6, 0, "abcdefghij", 5, 4, 0);
+    test("abcde", 6, 0, "abcdefghij", 5, 5, 0);
+    test("abcde", 6, 0, "abcdefghij", 5, 6, 0);
+    test("abcde", 6, 0, "abcdefghij", 9, 0, 0);
+    test("abcde", 6, 0, "abcdefghij", 9, 1, 0);
+    test("abcde", 6, 0, "abcdefghij", 9, 2, 0);
+    test("abcde", 6, 0, "abcdefghij", 10, 0, 0);
+    test("abcde", 6, 0, "abcdefghij", 10, 1, 0);
+    test("abcde", 6, 0, "abcdefghij", 11, 0, 0);
+}
+
+void test19()
+{
+    test("abcde", 6, 0, "abcdefghijklmnopqrst", 0, 0, 0);
+    test("abcde", 6, 0, "abcdefghijklmnopqrst", 0, 1, 0);
+    test("abcde", 6, 0, "abcdefghijklmnopqrst", 0, 10, 0);
+    test("abcde", 6, 0, "abcdefghijklmnopqrst", 0, 19, 0);
+    test("abcde", 6, 0, "abcdefghijklmnopqrst", 0, 20, 0);
+    test("abcde", 6, 0, "abcdefghijklmnopqrst", 0, 21, 0);
+    test("abcde", 6, 0, "abcdefghijklmnopqrst", 1, 0, 0);
+    test("abcde", 6, 0, "abcdefghijklmnopqrst", 1, 1, 0);
+    test("abcde", 6, 0, "abcdefghijklmnopqrst", 1, 9, 0);
+    test("abcde", 6, 0, "abcdefghijklmnopqrst", 1, 18, 0);
+    test("abcde", 6, 0, "abcdefghijklmnopqrst", 1, 19, 0);
+    test("abcde", 6, 0, "abcdefghijklmnopqrst", 1, 20, 0);
+    test("abcde", 6, 0, "abcdefghijklmnopqrst", 10, 0, 0);
+    test("abcde", 6, 0, "abcdefghijklmnopqrst", 10, 1, 0);
+    test("abcde", 6, 0, "abcdefghijklmnopqrst", 10, 5, 0);
+    test("abcde", 6, 0, "abcdefghijklmnopqrst", 10, 9, 0);
+    test("abcde", 6, 0, "abcdefghijklmnopqrst", 10, 10, 0);
+    test("abcde", 6, 0, "abcdefghijklmnopqrst", 10, 11, 0);
+    test("abcde", 6, 0, "abcdefghijklmnopqrst", 19, 0, 0);
+    test("abcde", 6, 0, "abcdefghijklmnopqrst", 19, 1, 0);
+    test("abcde", 6, 0, "abcdefghijklmnopqrst", 19, 2, 0);
+    test("abcde", 6, 0, "abcdefghijklmnopqrst", 20, 0, 0);
+    test("abcde", 6, 0, "abcdefghijklmnopqrst", 20, 1, 0);
+    test("abcde", 6, 0, "abcdefghijklmnopqrst", 21, 0, 0);
+    test("abcdefghij", 0, 0, "", 0, 0, 0);
+    test("abcdefghij", 0, 0, "", 0, 1, 0);
+    test("abcdefghij", 0, 0, "", 1, 0, 0);
+    test("abcdefghij", 0, 0, "abcde", 0, 0, 0);
+    test("abcdefghij", 0, 0, "abcde", 0, 1, -1);
+    test("abcdefghij", 0, 0, "abcde", 0, 2, -2);
+    test("abcdefghij", 0, 0, "abcde", 0, 4, -4);
+    test("abcdefghij", 0, 0, "abcde", 0, 5, -5);
+    test("abcdefghij", 0, 0, "abcde", 0, 6, -5);
+    test("abcdefghij", 0, 0, "abcde", 1, 0, 0);
+    test("abcdefghij", 0, 0, "abcde", 1, 1, -1);
+    test("abcdefghij", 0, 0, "abcde", 1, 2, -2);
+    test("abcdefghij", 0, 0, "abcde", 1, 3, -3);
+    test("abcdefghij", 0, 0, "abcde", 1, 4, -4);
+    test("abcdefghij", 0, 0, "abcde", 1, 5, -4);
+    test("abcdefghij", 0, 0, "abcde", 2, 0, 0);
+    test("abcdefghij", 0, 0, "abcde", 2, 1, -1);
+    test("abcdefghij", 0, 0, "abcde", 2, 2, -2);
+    test("abcdefghij", 0, 0, "abcde", 2, 3, -3);
+    test("abcdefghij", 0, 0, "abcde", 2, 4, -3);
+    test("abcdefghij", 0, 0, "abcde", 4, 0, 0);
+    test("abcdefghij", 0, 0, "abcde", 4, 1, -1);
+    test("abcdefghij", 0, 0, "abcde", 4, 2, -1);
+    test("abcdefghij", 0, 0, "abcde", 5, 0, 0);
+    test("abcdefghij", 0, 0, "abcde", 5, 1, 0);
+    test("abcdefghij", 0, 0, "abcde", 6, 0, 0);
+    test("abcdefghij", 0, 0, "abcdefghij", 0, 0, 0);
+    test("abcdefghij", 0, 0, "abcdefghij", 0, 1, -1);
+    test("abcdefghij", 0, 0, "abcdefghij", 0, 5, -5);
+    test("abcdefghij", 0, 0, "abcdefghij", 0, 9, -9);
+    test("abcdefghij", 0, 0, "abcdefghij", 0, 10, -10);
+    test("abcdefghij", 0, 0, "abcdefghij", 0, 11, -10);
+    test("abcdefghij", 0, 0, "abcdefghij", 1, 0, 0);
+    test("abcdefghij", 0, 0, "abcdefghij", 1, 1, -1);
+    test("abcdefghij", 0, 0, "abcdefghij", 1, 4, -4);
+    test("abcdefghij", 0, 0, "abcdefghij", 1, 8, -8);
+    test("abcdefghij", 0, 0, "abcdefghij", 1, 9, -9);
+    test("abcdefghij", 0, 0, "abcdefghij", 1, 10, -9);
+    test("abcdefghij", 0, 0, "abcdefghij", 5, 0, 0);
+    test("abcdefghij", 0, 0, "abcdefghij", 5, 1, -1);
+    test("abcdefghij", 0, 0, "abcdefghij", 5, 2, -2);
+    test("abcdefghij", 0, 0, "abcdefghij", 5, 4, -4);
+    test("abcdefghij", 0, 0, "abcdefghij", 5, 5, -5);
+    test("abcdefghij", 0, 0, "abcdefghij", 5, 6, -5);
+    test("abcdefghij", 0, 0, "abcdefghij", 9, 0, 0);
+    test("abcdefghij", 0, 0, "abcdefghij", 9, 1, -1);
+    test("abcdefghij", 0, 0, "abcdefghij", 9, 2, -1);
+    test("abcdefghij", 0, 0, "abcdefghij", 10, 0, 0);
+    test("abcdefghij", 0, 0, "abcdefghij", 10, 1, 0);
+    test("abcdefghij", 0, 0, "abcdefghij", 11, 0, 0);
+    test("abcdefghij", 0, 0, "abcdefghijklmnopqrst", 0, 0, 0);
+    test("abcdefghij", 0, 0, "abcdefghijklmnopqrst", 0, 1, -1);
+    test("abcdefghij", 0, 0, "abcdefghijklmnopqrst", 0, 10, -10);
+    test("abcdefghij", 0, 0, "abcdefghijklmnopqrst", 0, 19, -19);
+    test("abcdefghij", 0, 0, "abcdefghijklmnopqrst", 0, 20, -20);
+    test("abcdefghij", 0, 0, "abcdefghijklmnopqrst", 0, 21, -20);
+    test("abcdefghij", 0, 0, "abcdefghijklmnopqrst", 1, 0, 0);
+    test("abcdefghij", 0, 0, "abcdefghijklmnopqrst", 1, 1, -1);
+    test("abcdefghij", 0, 0, "abcdefghijklmnopqrst", 1, 9, -9);
+    test("abcdefghij", 0, 0, "abcdefghijklmnopqrst", 1, 18, -18);
+    test("abcdefghij", 0, 0, "abcdefghijklmnopqrst", 1, 19, -19);
+    test("abcdefghij", 0, 0, "abcdefghijklmnopqrst", 1, 20, -19);
+    test("abcdefghij", 0, 0, "abcdefghijklmnopqrst", 10, 0, 0);
+    test("abcdefghij", 0, 0, "abcdefghijklmnopqrst", 10, 1, -1);
+    test("abcdefghij", 0, 0, "abcdefghijklmnopqrst", 10, 5, -5);
+    test("abcdefghij", 0, 0, "abcdefghijklmnopqrst", 10, 9, -9);
+    test("abcdefghij", 0, 0, "abcdefghijklmnopqrst", 10, 10, -10);
+    test("abcdefghij", 0, 0, "abcdefghijklmnopqrst", 10, 11, -10);
+    test("abcdefghij", 0, 0, "abcdefghijklmnopqrst", 19, 0, 0);
+    test("abcdefghij", 0, 0, "abcdefghijklmnopqrst", 19, 1, -1);
+    test("abcdefghij", 0, 0, "abcdefghijklmnopqrst", 19, 2, -1);
+    test("abcdefghij", 0, 0, "abcdefghijklmnopqrst", 20, 0, 0);
+    test("abcdefghij", 0, 0, "abcdefghijklmnopqrst", 20, 1, 0);
+    test("abcdefghij", 0, 0, "abcdefghijklmnopqrst", 21, 0, 0);
+    test("abcdefghij", 0, 1, "", 0, 0, 1);
+    test("abcdefghij", 0, 1, "", 0, 1, 1);
+}
+
+void test20()
+{
+    test("abcdefghij", 0, 1, "", 1, 0, 0);
+    test("abcdefghij", 0, 1, "abcde", 0, 0, 1);
+    test("abcdefghij", 0, 1, "abcde", 0, 1, 0);
+    test("abcdefghij", 0, 1, "abcde", 0, 2, -1);
+    test("abcdefghij", 0, 1, "abcde", 0, 4, -3);
+    test("abcdefghij", 0, 1, "abcde", 0, 5, -4);
+    test("abcdefghij", 0, 1, "abcde", 0, 6, -4);
+    test("abcdefghij", 0, 1, "abcde", 1, 0, 1);
+    test("abcdefghij", 0, 1, "abcde", 1, 1, -1);
+    test("abcdefghij", 0, 1, "abcde", 1, 2, -1);
+    test("abcdefghij", 0, 1, "abcde", 1, 3, -1);
+    test("abcdefghij", 0, 1, "abcde", 1, 4, -1);
+    test("abcdefghij", 0, 1, "abcde", 1, 5, -1);
+    test("abcdefghij", 0, 1, "abcde", 2, 0, 1);
+    test("abcdefghij", 0, 1, "abcde", 2, 1, -2);
+    test("abcdefghij", 0, 1, "abcde", 2, 2, -2);
+    test("abcdefghij", 0, 1, "abcde", 2, 3, -2);
+    test("abcdefghij", 0, 1, "abcde", 2, 4, -2);
+    test("abcdefghij", 0, 1, "abcde", 4, 0, 1);
+    test("abcdefghij", 0, 1, "abcde", 4, 1, -4);
+    test("abcdefghij", 0, 1, "abcde", 4, 2, -4);
+    test("abcdefghij", 0, 1, "abcde", 5, 0, 1);
+    test("abcdefghij", 0, 1, "abcde", 5, 1, 1);
+    test("abcdefghij", 0, 1, "abcde", 6, 0, 0);
+    test("abcdefghij", 0, 1, "abcdefghij", 0, 0, 1);
+    test("abcdefghij", 0, 1, "abcdefghij", 0, 1, 0);
+    test("abcdefghij", 0, 1, "abcdefghij", 0, 5, -4);
+    test("abcdefghij", 0, 1, "abcdefghij", 0, 9, -8);
+    test("abcdefghij", 0, 1, "abcdefghij", 0, 10, -9);
+    test("abcdefghij", 0, 1, "abcdefghij", 0, 11, -9);
+    test("abcdefghij", 0, 1, "abcdefghij", 1, 0, 1);
+    test("abcdefghij", 0, 1, "abcdefghij", 1, 1, -1);
+    test("abcdefghij", 0, 1, "abcdefghij", 1, 4, -1);
+    test("abcdefghij", 0, 1, "abcdefghij", 1, 8, -1);
+    test("abcdefghij", 0, 1, "abcdefghij", 1, 9, -1);
+    test("abcdefghij", 0, 1, "abcdefghij", 1, 10, -1);
+    test("abcdefghij", 0, 1, "abcdefghij", 5, 0, 1);
+    test("abcdefghij", 0, 1, "abcdefghij", 5, 1, -5);
+    test("abcdefghij", 0, 1, "abcdefghij", 5, 2, -5);
+    test("abcdefghij", 0, 1, "abcdefghij", 5, 4, -5);
+    test("abcdefghij", 0, 1, "abcdefghij", 5, 5, -5);
+    test("abcdefghij", 0, 1, "abcdefghij", 5, 6, -5);
+    test("abcdefghij", 0, 1, "abcdefghij", 9, 0, 1);
+    test("abcdefghij", 0, 1, "abcdefghij", 9, 1, -9);
+    test("abcdefghij", 0, 1, "abcdefghij", 9, 2, -9);
+    test("abcdefghij", 0, 1, "abcdefghij", 10, 0, 1);
+    test("abcdefghij", 0, 1, "abcdefghij", 10, 1, 1);
+    test("abcdefghij", 0, 1, "abcdefghij", 11, 0, 0);
+    test("abcdefghij", 0, 1, "abcdefghijklmnopqrst", 0, 0, 1);
+    test("abcdefghij", 0, 1, "abcdefghijklmnopqrst", 0, 1, 0);
+    test("abcdefghij", 0, 1, "abcdefghijklmnopqrst", 0, 10, -9);
+    test("abcdefghij", 0, 1, "abcdefghijklmnopqrst", 0, 19, -18);
+    test("abcdefghij", 0, 1, "abcdefghijklmnopqrst", 0, 20, -19);
+    test("abcdefghij", 0, 1, "abcdefghijklmnopqrst", 0, 21, -19);
+    test("abcdefghij", 0, 1, "abcdefghijklmnopqrst", 1, 0, 1);
+    test("abcdefghij", 0, 1, "abcdefghijklmnopqrst", 1, 1, -1);
+    test("abcdefghij", 0, 1, "abcdefghijklmnopqrst", 1, 9, -1);
+    test("abcdefghij", 0, 1, "abcdefghijklmnopqrst", 1, 18, -1);
+    test("abcdefghij", 0, 1, "abcdefghijklmnopqrst", 1, 19, -1);
+    test("abcdefghij", 0, 1, "abcdefghijklmnopqrst", 1, 20, -1);
+    test("abcdefghij", 0, 1, "abcdefghijklmnopqrst", 10, 0, 1);
+    test("abcdefghij", 0, 1, "abcdefghijklmnopqrst", 10, 1, -10);
+    test("abcdefghij", 0, 1, "abcdefghijklmnopqrst", 10, 5, -10);
+    test("abcdefghij", 0, 1, "abcdefghijklmnopqrst", 10, 9, -10);
+    test("abcdefghij", 0, 1, "abcdefghijklmnopqrst", 10, 10, -10);
+    test("abcdefghij", 0, 1, "abcdefghijklmnopqrst", 10, 11, -10);
+    test("abcdefghij", 0, 1, "abcdefghijklmnopqrst", 19, 0, 1);
+    test("abcdefghij", 0, 1, "abcdefghijklmnopqrst", 19, 1, -19);
+    test("abcdefghij", 0, 1, "abcdefghijklmnopqrst", 19, 2, -19);
+    test("abcdefghij", 0, 1, "abcdefghijklmnopqrst", 20, 0, 1);
+    test("abcdefghij", 0, 1, "abcdefghijklmnopqrst", 20, 1, 1);
+    test("abcdefghij", 0, 1, "abcdefghijklmnopqrst", 21, 0, 0);
+    test("abcdefghij", 0, 5, "", 0, 0, 5);
+    test("abcdefghij", 0, 5, "", 0, 1, 5);
+    test("abcdefghij", 0, 5, "", 1, 0, 0);
+    test("abcdefghij", 0, 5, "abcde", 0, 0, 5);
+    test("abcdefghij", 0, 5, "abcde", 0, 1, 4);
+    test("abcdefghij", 0, 5, "abcde", 0, 2, 3);
+    test("abcdefghij", 0, 5, "abcde", 0, 4, 1);
+    test("abcdefghij", 0, 5, "abcde", 0, 5, 0);
+    test("abcdefghij", 0, 5, "abcde", 0, 6, 0);
+    test("abcdefghij", 0, 5, "abcde", 1, 0, 5);
+    test("abcdefghij", 0, 5, "abcde", 1, 1, -1);
+    test("abcdefghij", 0, 5, "abcde", 1, 2, -1);
+    test("abcdefghij", 0, 5, "abcde", 1, 3, -1);
+    test("abcdefghij", 0, 5, "abcde", 1, 4, -1);
+    test("abcdefghij", 0, 5, "abcde", 1, 5, -1);
+    test("abcdefghij", 0, 5, "abcde", 2, 0, 5);
+    test("abcdefghij", 0, 5, "abcde", 2, 1, -2);
+    test("abcdefghij", 0, 5, "abcde", 2, 2, -2);
+    test("abcdefghij", 0, 5, "abcde", 2, 3, -2);
+    test("abcdefghij", 0, 5, "abcde", 2, 4, -2);
+    test("abcdefghij", 0, 5, "abcde", 4, 0, 5);
+    test("abcdefghij", 0, 5, "abcde", 4, 1, -4);
+    test("abcdefghij", 0, 5, "abcde", 4, 2, -4);
+    test("abcdefghij", 0, 5, "abcde", 5, 0, 5);
+    test("abcdefghij", 0, 5, "abcde", 5, 1, 5);
+    test("abcdefghij", 0, 5, "abcde", 6, 0, 0);
+    test("abcdefghij", 0, 5, "abcdefghij", 0, 0, 5);
+    test("abcdefghij", 0, 5, "abcdefghij", 0, 1, 4);
+}
+
+void test21()
+{
+    test("abcdefghij", 0, 5, "abcdefghij", 0, 5, 0);
+    test("abcdefghij", 0, 5, "abcdefghij", 0, 9, -4);
+    test("abcdefghij", 0, 5, "abcdefghij", 0, 10, -5);
+    test("abcdefghij", 0, 5, "abcdefghij", 0, 11, -5);
+    test("abcdefghij", 0, 5, "abcdefghij", 1, 0, 5);
+    test("abcdefghij", 0, 5, "abcdefghij", 1, 1, -1);
+    test("abcdefghij", 0, 5, "abcdefghij", 1, 4, -1);
+    test("abcdefghij", 0, 5, "abcdefghij", 1, 8, -1);
+    test("abcdefghij", 0, 5, "abcdefghij", 1, 9, -1);
+    test("abcdefghij", 0, 5, "abcdefghij", 1, 10, -1);
+    test("abcdefghij", 0, 5, "abcdefghij", 5, 0, 5);
+    test("abcdefghij", 0, 5, "abcdefghij", 5, 1, -5);
+    test("abcdefghij", 0, 5, "abcdefghij", 5, 2, -5);
+    test("abcdefghij", 0, 5, "abcdefghij", 5, 4, -5);
+    test("abcdefghij", 0, 5, "abcdefghij", 5, 5, -5);
+    test("abcdefghij", 0, 5, "abcdefghij", 5, 6, -5);
+    test("abcdefghij", 0, 5, "abcdefghij", 9, 0, 5);
+    test("abcdefghij", 0, 5, "abcdefghij", 9, 1, -9);
+    test("abcdefghij", 0, 5, "abcdefghij", 9, 2, -9);
+    test("abcdefghij", 0, 5, "abcdefghij", 10, 0, 5);
+    test("abcdefghij", 0, 5, "abcdefghij", 10, 1, 5);
+    test("abcdefghij", 0, 5, "abcdefghij", 11, 0, 0);
+    test("abcdefghij", 0, 5, "abcdefghijklmnopqrst", 0, 0, 5);
+    test("abcdefghij", 0, 5, "abcdefghijklmnopqrst", 0, 1, 4);
+    test("abcdefghij", 0, 5, "abcdefghijklmnopqrst", 0, 10, -5);
+    test("abcdefghij", 0, 5, "abcdefghijklmnopqrst", 0, 19, -14);
+    test("abcdefghij", 0, 5, "abcdefghijklmnopqrst", 0, 20, -15);
+    test("abcdefghij", 0, 5, "abcdefghijklmnopqrst", 0, 21, -15);
+    test("abcdefghij", 0, 5, "abcdefghijklmnopqrst", 1, 0, 5);
+    test("abcdefghij", 0, 5, "abcdefghijklmnopqrst", 1, 1, -1);
+    test("abcdefghij", 0, 5, "abcdefghijklmnopqrst", 1, 9, -1);
+    test("abcdefghij", 0, 5, "abcdefghijklmnopqrst", 1, 18, -1);
+    test("abcdefghij", 0, 5, "abcdefghijklmnopqrst", 1, 19, -1);
+    test("abcdefghij", 0, 5, "abcdefghijklmnopqrst", 1, 20, -1);
+    test("abcdefghij", 0, 5, "abcdefghijklmnopqrst", 10, 0, 5);
+    test("abcdefghij", 0, 5, "abcdefghijklmnopqrst", 10, 1, -10);
+    test("abcdefghij", 0, 5, "abcdefghijklmnopqrst", 10, 5, -10);
+    test("abcdefghij", 0, 5, "abcdefghijklmnopqrst", 10, 9, -10);
+    test("abcdefghij", 0, 5, "abcdefghijklmnopqrst", 10, 10, -10);
+    test("abcdefghij", 0, 5, "abcdefghijklmnopqrst", 10, 11, -10);
+    test("abcdefghij", 0, 5, "abcdefghijklmnopqrst", 19, 0, 5);
+    test("abcdefghij", 0, 5, "abcdefghijklmnopqrst", 19, 1, -19);
+    test("abcdefghij", 0, 5, "abcdefghijklmnopqrst", 19, 2, -19);
+    test("abcdefghij", 0, 5, "abcdefghijklmnopqrst", 20, 0, 5);
+    test("abcdefghij", 0, 5, "abcdefghijklmnopqrst", 20, 1, 5);
+    test("abcdefghij", 0, 5, "abcdefghijklmnopqrst", 21, 0, 0);
+    test("abcdefghij", 0, 9, "", 0, 0, 9);
+    test("abcdefghij", 0, 9, "", 0, 1, 9);
+    test("abcdefghij", 0, 9, "", 1, 0, 0);
+    test("abcdefghij", 0, 9, "abcde", 0, 0, 9);
+    test("abcdefghij", 0, 9, "abcde", 0, 1, 8);
+    test("abcdefghij", 0, 9, "abcde", 0, 2, 7);
+    test("abcdefghij", 0, 9, "abcde", 0, 4, 5);
+    test("abcdefghij", 0, 9, "abcde", 0, 5, 4);
+    test("abcdefghij", 0, 9, "abcde", 0, 6, 4);
+    test("abcdefghij", 0, 9, "abcde", 1, 0, 9);
+    test("abcdefghij", 0, 9, "abcde", 1, 1, -1);
+    test("abcdefghij", 0, 9, "abcde", 1, 2, -1);
+    test("abcdefghij", 0, 9, "abcde", 1, 3, -1);
+    test("abcdefghij", 0, 9, "abcde", 1, 4, -1);
+    test("abcdefghij", 0, 9, "abcde", 1, 5, -1);
+    test("abcdefghij", 0, 9, "abcde", 2, 0, 9);
+    test("abcdefghij", 0, 9, "abcde", 2, 1, -2);
+    test("abcdefghij", 0, 9, "abcde", 2, 2, -2);
+    test("abcdefghij", 0, 9, "abcde", 2, 3, -2);
+    test("abcdefghij", 0, 9, "abcde", 2, 4, -2);
+    test("abcdefghij", 0, 9, "abcde", 4, 0, 9);
+    test("abcdefghij", 0, 9, "abcde", 4, 1, -4);
+    test("abcdefghij", 0, 9, "abcde", 4, 2, -4);
+    test("abcdefghij", 0, 9, "abcde", 5, 0, 9);
+    test("abcdefghij", 0, 9, "abcde", 5, 1, 9);
+    test("abcdefghij", 0, 9, "abcde", 6, 0, 0);
+    test("abcdefghij", 0, 9, "abcdefghij", 0, 0, 9);
+    test("abcdefghij", 0, 9, "abcdefghij", 0, 1, 8);
+    test("abcdefghij", 0, 9, "abcdefghij", 0, 5, 4);
+    test("abcdefghij", 0, 9, "abcdefghij", 0, 9, 0);
+    test("abcdefghij", 0, 9, "abcdefghij", 0, 10, -1);
+    test("abcdefghij", 0, 9, "abcdefghij", 0, 11, -1);
+    test("abcdefghij", 0, 9, "abcdefghij", 1, 0, 9);
+    test("abcdefghij", 0, 9, "abcdefghij", 1, 1, -1);
+    test("abcdefghij", 0, 9, "abcdefghij", 1, 4, -1);
+    test("abcdefghij", 0, 9, "abcdefghij", 1, 8, -1);
+    test("abcdefghij", 0, 9, "abcdefghij", 1, 9, -1);
+    test("abcdefghij", 0, 9, "abcdefghij", 1, 10, -1);
+    test("abcdefghij", 0, 9, "abcdefghij", 5, 0, 9);
+    test("abcdefghij", 0, 9, "abcdefghij", 5, 1, -5);
+    test("abcdefghij", 0, 9, "abcdefghij", 5, 2, -5);
+    test("abcdefghij", 0, 9, "abcdefghij", 5, 4, -5);
+    test("abcdefghij", 0, 9, "abcdefghij", 5, 5, -5);
+    test("abcdefghij", 0, 9, "abcdefghij", 5, 6, -5);
+    test("abcdefghij", 0, 9, "abcdefghij", 9, 0, 9);
+    test("abcdefghij", 0, 9, "abcdefghij", 9, 1, -9);
+    test("abcdefghij", 0, 9, "abcdefghij", 9, 2, -9);
+    test("abcdefghij", 0, 9, "abcdefghij", 10, 0, 9);
+    test("abcdefghij", 0, 9, "abcdefghij", 10, 1, 9);
+    test("abcdefghij", 0, 9, "abcdefghij", 11, 0, 0);
+    test("abcdefghij", 0, 9, "abcdefghijklmnopqrst", 0, 0, 9);
+    test("abcdefghij", 0, 9, "abcdefghijklmnopqrst", 0, 1, 8);
+    test("abcdefghij", 0, 9, "abcdefghijklmnopqrst", 0, 10, -1);
+    test("abcdefghij", 0, 9, "abcdefghijklmnopqrst", 0, 19, -10);
+}
+
+void test22()
+{
+    test("abcdefghij", 0, 9, "abcdefghijklmnopqrst", 0, 20, -11);
+    test("abcdefghij", 0, 9, "abcdefghijklmnopqrst", 0, 21, -11);
+    test("abcdefghij", 0, 9, "abcdefghijklmnopqrst", 1, 0, 9);
+    test("abcdefghij", 0, 9, "abcdefghijklmnopqrst", 1, 1, -1);
+    test("abcdefghij", 0, 9, "abcdefghijklmnopqrst", 1, 9, -1);
+    test("abcdefghij", 0, 9, "abcdefghijklmnopqrst", 1, 18, -1);
+    test("abcdefghij", 0, 9, "abcdefghijklmnopqrst", 1, 19, -1);
+    test("abcdefghij", 0, 9, "abcdefghijklmnopqrst", 1, 20, -1);
+    test("abcdefghij", 0, 9, "abcdefghijklmnopqrst", 10, 0, 9);
+    test("abcdefghij", 0, 9, "abcdefghijklmnopqrst", 10, 1, -10);
+    test("abcdefghij", 0, 9, "abcdefghijklmnopqrst", 10, 5, -10);
+    test("abcdefghij", 0, 9, "abcdefghijklmnopqrst", 10, 9, -10);
+    test("abcdefghij", 0, 9, "abcdefghijklmnopqrst", 10, 10, -10);
+    test("abcdefghij", 0, 9, "abcdefghijklmnopqrst", 10, 11, -10);
+    test("abcdefghij", 0, 9, "abcdefghijklmnopqrst", 19, 0, 9);
+    test("abcdefghij", 0, 9, "abcdefghijklmnopqrst", 19, 1, -19);
+    test("abcdefghij", 0, 9, "abcdefghijklmnopqrst", 19, 2, -19);
+    test("abcdefghij", 0, 9, "abcdefghijklmnopqrst", 20, 0, 9);
+    test("abcdefghij", 0, 9, "abcdefghijklmnopqrst", 20, 1, 9);
+    test("abcdefghij", 0, 9, "abcdefghijklmnopqrst", 21, 0, 0);
+    test("abcdefghij", 0, 10, "", 0, 0, 10);
+    test("abcdefghij", 0, 10, "", 0, 1, 10);
+    test("abcdefghij", 0, 10, "", 1, 0, 0);
+    test("abcdefghij", 0, 10, "abcde", 0, 0, 10);
+    test("abcdefghij", 0, 10, "abcde", 0, 1, 9);
+    test("abcdefghij", 0, 10, "abcde", 0, 2, 8);
+    test("abcdefghij", 0, 10, "abcde", 0, 4, 6);
+    test("abcdefghij", 0, 10, "abcde", 0, 5, 5);
+    test("abcdefghij", 0, 10, "abcde", 0, 6, 5);
+    test("abcdefghij", 0, 10, "abcde", 1, 0, 10);
+    test("abcdefghij", 0, 10, "abcde", 1, 1, -1);
+    test("abcdefghij", 0, 10, "abcde", 1, 2, -1);
+    test("abcdefghij", 0, 10, "abcde", 1, 3, -1);
+    test("abcdefghij", 0, 10, "abcde", 1, 4, -1);
+    test("abcdefghij", 0, 10, "abcde", 1, 5, -1);
+    test("abcdefghij", 0, 10, "abcde", 2, 0, 10);
+    test("abcdefghij", 0, 10, "abcde", 2, 1, -2);
+    test("abcdefghij", 0, 10, "abcde", 2, 2, -2);
+    test("abcdefghij", 0, 10, "abcde", 2, 3, -2);
+    test("abcdefghij", 0, 10, "abcde", 2, 4, -2);
+    test("abcdefghij", 0, 10, "abcde", 4, 0, 10);
+    test("abcdefghij", 0, 10, "abcde", 4, 1, -4);
+    test("abcdefghij", 0, 10, "abcde", 4, 2, -4);
+    test("abcdefghij", 0, 10, "abcde", 5, 0, 10);
+    test("abcdefghij", 0, 10, "abcde", 5, 1, 10);
+    test("abcdefghij", 0, 10, "abcde", 6, 0, 0);
+    test("abcdefghij", 0, 10, "abcdefghij", 0, 0, 10);
+    test("abcdefghij", 0, 10, "abcdefghij", 0, 1, 9);
+    test("abcdefghij", 0, 10, "abcdefghij", 0, 5, 5);
+    test("abcdefghij", 0, 10, "abcdefghij", 0, 9, 1);
+    test("abcdefghij", 0, 10, "abcdefghij", 0, 10, 0);
+    test("abcdefghij", 0, 10, "abcdefghij", 0, 11, 0);
+    test("abcdefghij", 0, 10, "abcdefghij", 1, 0, 10);
+    test("abcdefghij", 0, 10, "abcdefghij", 1, 1, -1);
+    test("abcdefghij", 0, 10, "abcdefghij", 1, 4, -1);
+    test("abcdefghij", 0, 10, "abcdefghij", 1, 8, -1);
+    test("abcdefghij", 0, 10, "abcdefghij", 1, 9, -1);
+    test("abcdefghij", 0, 10, "abcdefghij", 1, 10, -1);
+    test("abcdefghij", 0, 10, "abcdefghij", 5, 0, 10);
+    test("abcdefghij", 0, 10, "abcdefghij", 5, 1, -5);
+    test("abcdefghij", 0, 10, "abcdefghij", 5, 2, -5);
+    test("abcdefghij", 0, 10, "abcdefghij", 5, 4, -5);
+    test("abcdefghij", 0, 10, "abcdefghij", 5, 5, -5);
+    test("abcdefghij", 0, 10, "abcdefghij", 5, 6, -5);
+    test("abcdefghij", 0, 10, "abcdefghij", 9, 0, 10);
+    test("abcdefghij", 0, 10, "abcdefghij", 9, 1, -9);
+    test("abcdefghij", 0, 10, "abcdefghij", 9, 2, -9);
+    test("abcdefghij", 0, 10, "abcdefghij", 10, 0, 10);
+    test("abcdefghij", 0, 10, "abcdefghij", 10, 1, 10);
+    test("abcdefghij", 0, 10, "abcdefghij", 11, 0, 0);
+    test("abcdefghij", 0, 10, "abcdefghijklmnopqrst", 0, 0, 10);
+    test("abcdefghij", 0, 10, "abcdefghijklmnopqrst", 0, 1, 9);
+    test("abcdefghij", 0, 10, "abcdefghijklmnopqrst", 0, 10, 0);
+    test("abcdefghij", 0, 10, "abcdefghijklmnopqrst", 0, 19, -9);
+    test("abcdefghij", 0, 10, "abcdefghijklmnopqrst", 0, 20, -10);
+    test("abcdefghij", 0, 10, "abcdefghijklmnopqrst", 0, 21, -10);
+    test("abcdefghij", 0, 10, "abcdefghijklmnopqrst", 1, 0, 10);
+    test("abcdefghij", 0, 10, "abcdefghijklmnopqrst", 1, 1, -1);
+    test("abcdefghij", 0, 10, "abcdefghijklmnopqrst", 1, 9, -1);
+    test("abcdefghij", 0, 10, "abcdefghijklmnopqrst", 1, 18, -1);
+    test("abcdefghij", 0, 10, "abcdefghijklmnopqrst", 1, 19, -1);
+    test("abcdefghij", 0, 10, "abcdefghijklmnopqrst", 1, 20, -1);
+    test("abcdefghij", 0, 10, "abcdefghijklmnopqrst", 10, 0, 10);
+    test("abcdefghij", 0, 10, "abcdefghijklmnopqrst", 10, 1, -10);
+    test("abcdefghij", 0, 10, "abcdefghijklmnopqrst", 10, 5, -10);
+    test("abcdefghij", 0, 10, "abcdefghijklmnopqrst", 10, 9, -10);
+    test("abcdefghij", 0, 10, "abcdefghijklmnopqrst", 10, 10, -10);
+    test("abcdefghij", 0, 10, "abcdefghijklmnopqrst", 10, 11, -10);
+    test("abcdefghij", 0, 10, "abcdefghijklmnopqrst", 19, 0, 10);
+    test("abcdefghij", 0, 10, "abcdefghijklmnopqrst", 19, 1, -19);
+    test("abcdefghij", 0, 10, "abcdefghijklmnopqrst", 19, 2, -19);
+    test("abcdefghij", 0, 10, "abcdefghijklmnopqrst", 20, 0, 10);
+    test("abcdefghij", 0, 10, "abcdefghijklmnopqrst", 20, 1, 10);
+    test("abcdefghij", 0, 10, "abcdefghijklmnopqrst", 21, 0, 0);
+    test("abcdefghij", 0, 11, "", 0, 0, 10);
+    test("abcdefghij", 0, 11, "", 0, 1, 10);
+    test("abcdefghij", 0, 11, "", 1, 0, 0);
+    test("abcdefghij", 0, 11, "abcde", 0, 0, 10);
+    test("abcdefghij", 0, 11, "abcde", 0, 1, 9);
+    test("abcdefghij", 0, 11, "abcde", 0, 2, 8);
+}
+
+void test23()
+{
+    test("abcdefghij", 0, 11, "abcde", 0, 4, 6);
+    test("abcdefghij", 0, 11, "abcde", 0, 5, 5);
+    test("abcdefghij", 0, 11, "abcde", 0, 6, 5);
+    test("abcdefghij", 0, 11, "abcde", 1, 0, 10);
+    test("abcdefghij", 0, 11, "abcde", 1, 1, -1);
+    test("abcdefghij", 0, 11, "abcde", 1, 2, -1);
+    test("abcdefghij", 0, 11, "abcde", 1, 3, -1);
+    test("abcdefghij", 0, 11, "abcde", 1, 4, -1);
+    test("abcdefghij", 0, 11, "abcde", 1, 5, -1);
+    test("abcdefghij", 0, 11, "abcde", 2, 0, 10);
+    test("abcdefghij", 0, 11, "abcde", 2, 1, -2);
+    test("abcdefghij", 0, 11, "abcde", 2, 2, -2);
+    test("abcdefghij", 0, 11, "abcde", 2, 3, -2);
+    test("abcdefghij", 0, 11, "abcde", 2, 4, -2);
+    test("abcdefghij", 0, 11, "abcde", 4, 0, 10);
+    test("abcdefghij", 0, 11, "abcde", 4, 1, -4);
+    test("abcdefghij", 0, 11, "abcde", 4, 2, -4);
+    test("abcdefghij", 0, 11, "abcde", 5, 0, 10);
+    test("abcdefghij", 0, 11, "abcde", 5, 1, 10);
+    test("abcdefghij", 0, 11, "abcde", 6, 0, 0);
+    test("abcdefghij", 0, 11, "abcdefghij", 0, 0, 10);
+    test("abcdefghij", 0, 11, "abcdefghij", 0, 1, 9);
+    test("abcdefghij", 0, 11, "abcdefghij", 0, 5, 5);
+    test("abcdefghij", 0, 11, "abcdefghij", 0, 9, 1);
+    test("abcdefghij", 0, 11, "abcdefghij", 0, 10, 0);
+    test("abcdefghij", 0, 11, "abcdefghij", 0, 11, 0);
+    test("abcdefghij", 0, 11, "abcdefghij", 1, 0, 10);
+    test("abcdefghij", 0, 11, "abcdefghij", 1, 1, -1);
+    test("abcdefghij", 0, 11, "abcdefghij", 1, 4, -1);
+    test("abcdefghij", 0, 11, "abcdefghij", 1, 8, -1);
+    test("abcdefghij", 0, 11, "abcdefghij", 1, 9, -1);
+    test("abcdefghij", 0, 11, "abcdefghij", 1, 10, -1);
+    test("abcdefghij", 0, 11, "abcdefghij", 5, 0, 10);
+    test("abcdefghij", 0, 11, "abcdefghij", 5, 1, -5);
+    test("abcdefghij", 0, 11, "abcdefghij", 5, 2, -5);
+    test("abcdefghij", 0, 11, "abcdefghij", 5, 4, -5);
+    test("abcdefghij", 0, 11, "abcdefghij", 5, 5, -5);
+    test("abcdefghij", 0, 11, "abcdefghij", 5, 6, -5);
+    test("abcdefghij", 0, 11, "abcdefghij", 9, 0, 10);
+    test("abcdefghij", 0, 11, "abcdefghij", 9, 1, -9);
+    test("abcdefghij", 0, 11, "abcdefghij", 9, 2, -9);
+    test("abcdefghij", 0, 11, "abcdefghij", 10, 0, 10);
+    test("abcdefghij", 0, 11, "abcdefghij", 10, 1, 10);
+    test("abcdefghij", 0, 11, "abcdefghij", 11, 0, 0);
+    test("abcdefghij", 0, 11, "abcdefghijklmnopqrst", 0, 0, 10);
+    test("abcdefghij", 0, 11, "abcdefghijklmnopqrst", 0, 1, 9);
+    test("abcdefghij", 0, 11, "abcdefghijklmnopqrst", 0, 10, 0);
+    test("abcdefghij", 0, 11, "abcdefghijklmnopqrst", 0, 19, -9);
+    test("abcdefghij", 0, 11, "abcdefghijklmnopqrst", 0, 20, -10);
+    test("abcdefghij", 0, 11, "abcdefghijklmnopqrst", 0, 21, -10);
+    test("abcdefghij", 0, 11, "abcdefghijklmnopqrst", 1, 0, 10);
+    test("abcdefghij", 0, 11, "abcdefghijklmnopqrst", 1, 1, -1);
+    test("abcdefghij", 0, 11, "abcdefghijklmnopqrst", 1, 9, -1);
+    test("abcdefghij", 0, 11, "abcdefghijklmnopqrst", 1, 18, -1);
+    test("abcdefghij", 0, 11, "abcdefghijklmnopqrst", 1, 19, -1);
+    test("abcdefghij", 0, 11, "abcdefghijklmnopqrst", 1, 20, -1);
+    test("abcdefghij", 0, 11, "abcdefghijklmnopqrst", 10, 0, 10);
+    test("abcdefghij", 0, 11, "abcdefghijklmnopqrst", 10, 1, -10);
+    test("abcdefghij", 0, 11, "abcdefghijklmnopqrst", 10, 5, -10);
+    test("abcdefghij", 0, 11, "abcdefghijklmnopqrst", 10, 9, -10);
+    test("abcdefghij", 0, 11, "abcdefghijklmnopqrst", 10, 10, -10);
+    test("abcdefghij", 0, 11, "abcdefghijklmnopqrst", 10, 11, -10);
+    test("abcdefghij", 0, 11, "abcdefghijklmnopqrst", 19, 0, 10);
+    test("abcdefghij", 0, 11, "abcdefghijklmnopqrst", 19, 1, -19);
+    test("abcdefghij", 0, 11, "abcdefghijklmnopqrst", 19, 2, -19);
+    test("abcdefghij", 0, 11, "abcdefghijklmnopqrst", 20, 0, 10);
+    test("abcdefghij", 0, 11, "abcdefghijklmnopqrst", 20, 1, 10);
+    test("abcdefghij", 0, 11, "abcdefghijklmnopqrst", 21, 0, 0);
+    test("abcdefghij", 1, 0, "", 0, 0, 0);
+    test("abcdefghij", 1, 0, "", 0, 1, 0);
+    test("abcdefghij", 1, 0, "", 1, 0, 0);
+    test("abcdefghij", 1, 0, "abcde", 0, 0, 0);
+    test("abcdefghij", 1, 0, "abcde", 0, 1, -1);
+    test("abcdefghij", 1, 0, "abcde", 0, 2, -2);
+    test("abcdefghij", 1, 0, "abcde", 0, 4, -4);
+    test("abcdefghij", 1, 0, "abcde", 0, 5, -5);
+    test("abcdefghij", 1, 0, "abcde", 0, 6, -5);
+    test("abcdefghij", 1, 0, "abcde", 1, 0, 0);
+    test("abcdefghij", 1, 0, "abcde", 1, 1, -1);
+    test("abcdefghij", 1, 0, "abcde", 1, 2, -2);
+    test("abcdefghij", 1, 0, "abcde", 1, 3, -3);
+    test("abcdefghij", 1, 0, "abcde", 1, 4, -4);
+    test("abcdefghij", 1, 0, "abcde", 1, 5, -4);
+    test("abcdefghij", 1, 0, "abcde", 2, 0, 0);
+    test("abcdefghij", 1, 0, "abcde", 2, 1, -1);
+    test("abcdefghij", 1, 0, "abcde", 2, 2, -2);
+    test("abcdefghij", 1, 0, "abcde", 2, 3, -3);
+    test("abcdefghij", 1, 0, "abcde", 2, 4, -3);
+    test("abcdefghij", 1, 0, "abcde", 4, 0, 0);
+    test("abcdefghij", 1, 0, "abcde", 4, 1, -1);
+    test("abcdefghij", 1, 0, "abcde", 4, 2, -1);
+    test("abcdefghij", 1, 0, "abcde", 5, 0, 0);
+    test("abcdefghij", 1, 0, "abcde", 5, 1, 0);
+    test("abcdefghij", 1, 0, "abcde", 6, 0, 0);
+    test("abcdefghij", 1, 0, "abcdefghij", 0, 0, 0);
+    test("abcdefghij", 1, 0, "abcdefghij", 0, 1, -1);
+    test("abcdefghij", 1, 0, "abcdefghij", 0, 5, -5);
+    test("abcdefghij", 1, 0, "abcdefghij", 0, 9, -9);
+    test("abcdefghij", 1, 0, "abcdefghij", 0, 10, -10);
+    test("abcdefghij", 1, 0, "abcdefghij", 0, 11, -10);
+}
+
+void test24()
+{
+    test("abcdefghij", 1, 0, "abcdefghij", 1, 0, 0);
+    test("abcdefghij", 1, 0, "abcdefghij", 1, 1, -1);
+    test("abcdefghij", 1, 0, "abcdefghij", 1, 4, -4);
+    test("abcdefghij", 1, 0, "abcdefghij", 1, 8, -8);
+    test("abcdefghij", 1, 0, "abcdefghij", 1, 9, -9);
+    test("abcdefghij", 1, 0, "abcdefghij", 1, 10, -9);
+    test("abcdefghij", 1, 0, "abcdefghij", 5, 0, 0);
+    test("abcdefghij", 1, 0, "abcdefghij", 5, 1, -1);
+    test("abcdefghij", 1, 0, "abcdefghij", 5, 2, -2);
+    test("abcdefghij", 1, 0, "abcdefghij", 5, 4, -4);
+    test("abcdefghij", 1, 0, "abcdefghij", 5, 5, -5);
+    test("abcdefghij", 1, 0, "abcdefghij", 5, 6, -5);
+    test("abcdefghij", 1, 0, "abcdefghij", 9, 0, 0);
+    test("abcdefghij", 1, 0, "abcdefghij", 9, 1, -1);
+    test("abcdefghij", 1, 0, "abcdefghij", 9, 2, -1);
+    test("abcdefghij", 1, 0, "abcdefghij", 10, 0, 0);
+    test("abcdefghij", 1, 0, "abcdefghij", 10, 1, 0);
+    test("abcdefghij", 1, 0, "abcdefghij", 11, 0, 0);
+    test("abcdefghij", 1, 0, "abcdefghijklmnopqrst", 0, 0, 0);
+    test("abcdefghij", 1, 0, "abcdefghijklmnopqrst", 0, 1, -1);
+    test("abcdefghij", 1, 0, "abcdefghijklmnopqrst", 0, 10, -10);
+    test("abcdefghij", 1, 0, "abcdefghijklmnopqrst", 0, 19, -19);
+    test("abcdefghij", 1, 0, "abcdefghijklmnopqrst", 0, 20, -20);
+    test("abcdefghij", 1, 0, "abcdefghijklmnopqrst", 0, 21, -20);
+    test("abcdefghij", 1, 0, "abcdefghijklmnopqrst", 1, 0, 0);
+    test("abcdefghij", 1, 0, "abcdefghijklmnopqrst", 1, 1, -1);
+    test("abcdefghij", 1, 0, "abcdefghijklmnopqrst", 1, 9, -9);
+    test("abcdefghij", 1, 0, "abcdefghijklmnopqrst", 1, 18, -18);
+    test("abcdefghij", 1, 0, "abcdefghijklmnopqrst", 1, 19, -19);
+    test("abcdefghij", 1, 0, "abcdefghijklmnopqrst", 1, 20, -19);
+    test("abcdefghij", 1, 0, "abcdefghijklmnopqrst", 10, 0, 0);
+    test("abcdefghij", 1, 0, "abcdefghijklmnopqrst", 10, 1, -1);
+    test("abcdefghij", 1, 0, "abcdefghijklmnopqrst", 10, 5, -5);
+    test("abcdefghij", 1, 0, "abcdefghijklmnopqrst", 10, 9, -9);
+    test("abcdefghij", 1, 0, "abcdefghijklmnopqrst", 10, 10, -10);
+    test("abcdefghij", 1, 0, "abcdefghijklmnopqrst", 10, 11, -10);
+    test("abcdefghij", 1, 0, "abcdefghijklmnopqrst", 19, 0, 0);
+    test("abcdefghij", 1, 0, "abcdefghijklmnopqrst", 19, 1, -1);
+    test("abcdefghij", 1, 0, "abcdefghijklmnopqrst", 19, 2, -1);
+    test("abcdefghij", 1, 0, "abcdefghijklmnopqrst", 20, 0, 0);
+    test("abcdefghij", 1, 0, "abcdefghijklmnopqrst", 20, 1, 0);
+    test("abcdefghij", 1, 0, "abcdefghijklmnopqrst", 21, 0, 0);
+    test("abcdefghij", 1, 1, "", 0, 0, 1);
+    test("abcdefghij", 1, 1, "", 0, 1, 1);
+    test("abcdefghij", 1, 1, "", 1, 0, 0);
+    test("abcdefghij", 1, 1, "abcde", 0, 0, 1);
+    test("abcdefghij", 1, 1, "abcde", 0, 1, 1);
+    test("abcdefghij", 1, 1, "abcde", 0, 2, 1);
+    test("abcdefghij", 1, 1, "abcde", 0, 4, 1);
+    test("abcdefghij", 1, 1, "abcde", 0, 5, 1);
+    test("abcdefghij", 1, 1, "abcde", 0, 6, 1);
+    test("abcdefghij", 1, 1, "abcde", 1, 0, 1);
+    test("abcdefghij", 1, 1, "abcde", 1, 1, 0);
+    test("abcdefghij", 1, 1, "abcde", 1, 2, -1);
+    test("abcdefghij", 1, 1, "abcde", 1, 3, -2);
+    test("abcdefghij", 1, 1, "abcde", 1, 4, -3);
+    test("abcdefghij", 1, 1, "abcde", 1, 5, -3);
+    test("abcdefghij", 1, 1, "abcde", 2, 0, 1);
+    test("abcdefghij", 1, 1, "abcde", 2, 1, -1);
+    test("abcdefghij", 1, 1, "abcde", 2, 2, -1);
+    test("abcdefghij", 1, 1, "abcde", 2, 3, -1);
+    test("abcdefghij", 1, 1, "abcde", 2, 4, -1);
+    test("abcdefghij", 1, 1, "abcde", 4, 0, 1);
+    test("abcdefghij", 1, 1, "abcde", 4, 1, -3);
+    test("abcdefghij", 1, 1, "abcde", 4, 2, -3);
+    test("abcdefghij", 1, 1, "abcde", 5, 0, 1);
+    test("abcdefghij", 1, 1, "abcde", 5, 1, 1);
+    test("abcdefghij", 1, 1, "abcde", 6, 0, 0);
+    test("abcdefghij", 1, 1, "abcdefghij", 0, 0, 1);
+    test("abcdefghij", 1, 1, "abcdefghij", 0, 1, 1);
+    test("abcdefghij", 1, 1, "abcdefghij", 0, 5, 1);
+    test("abcdefghij", 1, 1, "abcdefghij", 0, 9, 1);
+    test("abcdefghij", 1, 1, "abcdefghij", 0, 10, 1);
+    test("abcdefghij", 1, 1, "abcdefghij", 0, 11, 1);
+    test("abcdefghij", 1, 1, "abcdefghij", 1, 0, 1);
+    test("abcdefghij", 1, 1, "abcdefghij", 1, 1, 0);
+    test("abcdefghij", 1, 1, "abcdefghij", 1, 4, -3);
+    test("abcdefghij", 1, 1, "abcdefghij", 1, 8, -7);
+    test("abcdefghij", 1, 1, "abcdefghij", 1, 9, -8);
+    test("abcdefghij", 1, 1, "abcdefghij", 1, 10, -8);
+    test("abcdefghij", 1, 1, "abcdefghij", 5, 0, 1);
+    test("abcdefghij", 1, 1, "abcdefghij", 5, 1, -4);
+    test("abcdefghij", 1, 1, "abcdefghij", 5, 2, -4);
+    test("abcdefghij", 1, 1, "abcdefghij", 5, 4, -4);
+    test("abcdefghij", 1, 1, "abcdefghij", 5, 5, -4);
+    test("abcdefghij", 1, 1, "abcdefghij", 5, 6, -4);
+    test("abcdefghij", 1, 1, "abcdefghij", 9, 0, 1);
+    test("abcdefghij", 1, 1, "abcdefghij", 9, 1, -8);
+    test("abcdefghij", 1, 1, "abcdefghij", 9, 2, -8);
+    test("abcdefghij", 1, 1, "abcdefghij", 10, 0, 1);
+    test("abcdefghij", 1, 1, "abcdefghij", 10, 1, 1);
+    test("abcdefghij", 1, 1, "abcdefghij", 11, 0, 0);
+    test("abcdefghij", 1, 1, "abcdefghijklmnopqrst", 0, 0, 1);
+    test("abcdefghij", 1, 1, "abcdefghijklmnopqrst", 0, 1, 1);
+    test("abcdefghij", 1, 1, "abcdefghijklmnopqrst", 0, 10, 1);
+    test("abcdefghij", 1, 1, "abcdefghijklmnopqrst", 0, 19, 1);
+    test("abcdefghij", 1, 1, "abcdefghijklmnopqrst", 0, 20, 1);
+    test("abcdefghij", 1, 1, "abcdefghijklmnopqrst", 0, 21, 1);
+    test("abcdefghij", 1, 1, "abcdefghijklmnopqrst", 1, 0, 1);
+    test("abcdefghij", 1, 1, "abcdefghijklmnopqrst", 1, 1, 0);
+}
+
+void test25()
+{
+    test("abcdefghij", 1, 1, "abcdefghijklmnopqrst", 1, 9, -8);
+    test("abcdefghij", 1, 1, "abcdefghijklmnopqrst", 1, 18, -17);
+    test("abcdefghij", 1, 1, "abcdefghijklmnopqrst", 1, 19, -18);
+    test("abcdefghij", 1, 1, "abcdefghijklmnopqrst", 1, 20, -18);
+    test("abcdefghij", 1, 1, "abcdefghijklmnopqrst", 10, 0, 1);
+    test("abcdefghij", 1, 1, "abcdefghijklmnopqrst", 10, 1, -9);
+    test("abcdefghij", 1, 1, "abcdefghijklmnopqrst", 10, 5, -9);
+    test("abcdefghij", 1, 1, "abcdefghijklmnopqrst", 10, 9, -9);
+    test("abcdefghij", 1, 1, "abcdefghijklmnopqrst", 10, 10, -9);
+    test("abcdefghij", 1, 1, "abcdefghijklmnopqrst", 10, 11, -9);
+    test("abcdefghij", 1, 1, "abcdefghijklmnopqrst", 19, 0, 1);
+    test("abcdefghij", 1, 1, "abcdefghijklmnopqrst", 19, 1, -18);
+    test("abcdefghij", 1, 1, "abcdefghijklmnopqrst", 19, 2, -18);
+    test("abcdefghij", 1, 1, "abcdefghijklmnopqrst", 20, 0, 1);
+    test("abcdefghij", 1, 1, "abcdefghijklmnopqrst", 20, 1, 1);
+    test("abcdefghij", 1, 1, "abcdefghijklmnopqrst", 21, 0, 0);
+    test("abcdefghij", 1, 4, "", 0, 0, 4);
+    test("abcdefghij", 1, 4, "", 0, 1, 4);
+    test("abcdefghij", 1, 4, "", 1, 0, 0);
+    test("abcdefghij", 1, 4, "abcde", 0, 0, 4);
+    test("abcdefghij", 1, 4, "abcde", 0, 1, 1);
+    test("abcdefghij", 1, 4, "abcde", 0, 2, 1);
+    test("abcdefghij", 1, 4, "abcde", 0, 4, 1);
+    test("abcdefghij", 1, 4, "abcde", 0, 5, 1);
+    test("abcdefghij", 1, 4, "abcde", 0, 6, 1);
+    test("abcdefghij", 1, 4, "abcde", 1, 0, 4);
+    test("abcdefghij", 1, 4, "abcde", 1, 1, 3);
+    test("abcdefghij", 1, 4, "abcde", 1, 2, 2);
+    test("abcdefghij", 1, 4, "abcde", 1, 3, 1);
+    test("abcdefghij", 1, 4, "abcde", 1, 4, 0);
+    test("abcdefghij", 1, 4, "abcde", 1, 5, 0);
+    test("abcdefghij", 1, 4, "abcde", 2, 0, 4);
+    test("abcdefghij", 1, 4, "abcde", 2, 1, -1);
+    test("abcdefghij", 1, 4, "abcde", 2, 2, -1);
+    test("abcdefghij", 1, 4, "abcde", 2, 3, -1);
+    test("abcdefghij", 1, 4, "abcde", 2, 4, -1);
+    test("abcdefghij", 1, 4, "abcde", 4, 0, 4);
+    test("abcdefghij", 1, 4, "abcde", 4, 1, -3);
+    test("abcdefghij", 1, 4, "abcde", 4, 2, -3);
+    test("abcdefghij", 1, 4, "abcde", 5, 0, 4);
+    test("abcdefghij", 1, 4, "abcde", 5, 1, 4);
+    test("abcdefghij", 1, 4, "abcde", 6, 0, 0);
+    test("abcdefghij", 1, 4, "abcdefghij", 0, 0, 4);
+    test("abcdefghij", 1, 4, "abcdefghij", 0, 1, 1);
+    test("abcdefghij", 1, 4, "abcdefghij", 0, 5, 1);
+    test("abcdefghij", 1, 4, "abcdefghij", 0, 9, 1);
+    test("abcdefghij", 1, 4, "abcdefghij", 0, 10, 1);
+    test("abcdefghij", 1, 4, "abcdefghij", 0, 11, 1);
+    test("abcdefghij", 1, 4, "abcdefghij", 1, 0, 4);
+    test("abcdefghij", 1, 4, "abcdefghij", 1, 1, 3);
+    test("abcdefghij", 1, 4, "abcdefghij", 1, 4, 0);
+    test("abcdefghij", 1, 4, "abcdefghij", 1, 8, -4);
+    test("abcdefghij", 1, 4, "abcdefghij", 1, 9, -5);
+    test("abcdefghij", 1, 4, "abcdefghij", 1, 10, -5);
+    test("abcdefghij", 1, 4, "abcdefghij", 5, 0, 4);
+    test("abcdefghij", 1, 4, "abcdefghij", 5, 1, -4);
+    test("abcdefghij", 1, 4, "abcdefghij", 5, 2, -4);
+    test("abcdefghij", 1, 4, "abcdefghij", 5, 4, -4);
+    test("abcdefghij", 1, 4, "abcdefghij", 5, 5, -4);
+    test("abcdefghij", 1, 4, "abcdefghij", 5, 6, -4);
+    test("abcdefghij", 1, 4, "abcdefghij", 9, 0, 4);
+    test("abcdefghij", 1, 4, "abcdefghij", 9, 1, -8);
+    test("abcdefghij", 1, 4, "abcdefghij", 9, 2, -8);
+    test("abcdefghij", 1, 4, "abcdefghij", 10, 0, 4);
+    test("abcdefghij", 1, 4, "abcdefghij", 10, 1, 4);
+    test("abcdefghij", 1, 4, "abcdefghij", 11, 0, 0);
+    test("abcdefghij", 1, 4, "abcdefghijklmnopqrst", 0, 0, 4);
+    test("abcdefghij", 1, 4, "abcdefghijklmnopqrst", 0, 1, 1);
+    test("abcdefghij", 1, 4, "abcdefghijklmnopqrst", 0, 10, 1);
+    test("abcdefghij", 1, 4, "abcdefghijklmnopqrst", 0, 19, 1);
+    test("abcdefghij", 1, 4, "abcdefghijklmnopqrst", 0, 20, 1);
+    test("abcdefghij", 1, 4, "abcdefghijklmnopqrst", 0, 21, 1);
+    test("abcdefghij", 1, 4, "abcdefghijklmnopqrst", 1, 0, 4);
+    test("abcdefghij", 1, 4, "abcdefghijklmnopqrst", 1, 1, 3);
+    test("abcdefghij", 1, 4, "abcdefghijklmnopqrst", 1, 9, -5);
+    test("abcdefghij", 1, 4, "abcdefghijklmnopqrst", 1, 18, -14);
+    test("abcdefghij", 1, 4, "abcdefghijklmnopqrst", 1, 19, -15);
+    test("abcdefghij", 1, 4, "abcdefghijklmnopqrst", 1, 20, -15);
+    test("abcdefghij", 1, 4, "abcdefghijklmnopqrst", 10, 0, 4);
+    test("abcdefghij", 1, 4, "abcdefghijklmnopqrst", 10, 1, -9);
+    test("abcdefghij", 1, 4, "abcdefghijklmnopqrst", 10, 5, -9);
+    test("abcdefghij", 1, 4, "abcdefghijklmnopqrst", 10, 9, -9);
+    test("abcdefghij", 1, 4, "abcdefghijklmnopqrst", 10, 10, -9);
+    test("abcdefghij", 1, 4, "abcdefghijklmnopqrst", 10, 11, -9);
+    test("abcdefghij", 1, 4, "abcdefghijklmnopqrst", 19, 0, 4);
+    test("abcdefghij", 1, 4, "abcdefghijklmnopqrst", 19, 1, -18);
+    test("abcdefghij", 1, 4, "abcdefghijklmnopqrst", 19, 2, -18);
+    test("abcdefghij", 1, 4, "abcdefghijklmnopqrst", 20, 0, 4);
+    test("abcdefghij", 1, 4, "abcdefghijklmnopqrst", 20, 1, 4);
+    test("abcdefghij", 1, 4, "abcdefghijklmnopqrst", 21, 0, 0);
+    test("abcdefghij", 1, 8, "", 0, 0, 8);
+    test("abcdefghij", 1, 8, "", 0, 1, 8);
+    test("abcdefghij", 1, 8, "", 1, 0, 0);
+    test("abcdefghij", 1, 8, "abcde", 0, 0, 8);
+    test("abcdefghij", 1, 8, "abcde", 0, 1, 1);
+    test("abcdefghij", 1, 8, "abcde", 0, 2, 1);
+    test("abcdefghij", 1, 8, "abcde", 0, 4, 1);
+    test("abcdefghij", 1, 8, "abcde", 0, 5, 1);
+    test("abcdefghij", 1, 8, "abcde", 0, 6, 1);
+    test("abcdefghij", 1, 8, "abcde", 1, 0, 8);
+}
+
+void test26()
+{
+    test("abcdefghij", 1, 8, "abcde", 1, 1, 7);
+    test("abcdefghij", 1, 8, "abcde", 1, 2, 6);
+    test("abcdefghij", 1, 8, "abcde", 1, 3, 5);
+    test("abcdefghij", 1, 8, "abcde", 1, 4, 4);
+    test("abcdefghij", 1, 8, "abcde", 1, 5, 4);
+    test("abcdefghij", 1, 8, "abcde", 2, 0, 8);
+    test("abcdefghij", 1, 8, "abcde", 2, 1, -1);
+    test("abcdefghij", 1, 8, "abcde", 2, 2, -1);
+    test("abcdefghij", 1, 8, "abcde", 2, 3, -1);
+    test("abcdefghij", 1, 8, "abcde", 2, 4, -1);
+    test("abcdefghij", 1, 8, "abcde", 4, 0, 8);
+    test("abcdefghij", 1, 8, "abcde", 4, 1, -3);
+    test("abcdefghij", 1, 8, "abcde", 4, 2, -3);
+    test("abcdefghij", 1, 8, "abcde", 5, 0, 8);
+    test("abcdefghij", 1, 8, "abcde", 5, 1, 8);
+    test("abcdefghij", 1, 8, "abcde", 6, 0, 0);
+    test("abcdefghij", 1, 8, "abcdefghij", 0, 0, 8);
+    test("abcdefghij", 1, 8, "abcdefghij", 0, 1, 1);
+    test("abcdefghij", 1, 8, "abcdefghij", 0, 5, 1);
+    test("abcdefghij", 1, 8, "abcdefghij", 0, 9, 1);
+    test("abcdefghij", 1, 8, "abcdefghij", 0, 10, 1);
+    test("abcdefghij", 1, 8, "abcdefghij", 0, 11, 1);
+    test("abcdefghij", 1, 8, "abcdefghij", 1, 0, 8);
+    test("abcdefghij", 1, 8, "abcdefghij", 1, 1, 7);
+    test("abcdefghij", 1, 8, "abcdefghij", 1, 4, 4);
+    test("abcdefghij", 1, 8, "abcdefghij", 1, 8, 0);
+    test("abcdefghij", 1, 8, "abcdefghij", 1, 9, -1);
+    test("abcdefghij", 1, 8, "abcdefghij", 1, 10, -1);
+    test("abcdefghij", 1, 8, "abcdefghij", 5, 0, 8);
+    test("abcdefghij", 1, 8, "abcdefghij", 5, 1, -4);
+    test("abcdefghij", 1, 8, "abcdefghij", 5, 2, -4);
+    test("abcdefghij", 1, 8, "abcdefghij", 5, 4, -4);
+    test("abcdefghij", 1, 8, "abcdefghij", 5, 5, -4);
+    test("abcdefghij", 1, 8, "abcdefghij", 5, 6, -4);
+    test("abcdefghij", 1, 8, "abcdefghij", 9, 0, 8);
+    test("abcdefghij", 1, 8, "abcdefghij", 9, 1, -8);
+    test("abcdefghij", 1, 8, "abcdefghij", 9, 2, -8);
+    test("abcdefghij", 1, 8, "abcdefghij", 10, 0, 8);
+    test("abcdefghij", 1, 8, "abcdefghij", 10, 1, 8);
+    test("abcdefghij", 1, 8, "abcdefghij", 11, 0, 0);
+    test("abcdefghij", 1, 8, "abcdefghijklmnopqrst", 0, 0, 8);
+    test("abcdefghij", 1, 8, "abcdefghijklmnopqrst", 0, 1, 1);
+    test("abcdefghij", 1, 8, "abcdefghijklmnopqrst", 0, 10, 1);
+    test("abcdefghij", 1, 8, "abcdefghijklmnopqrst", 0, 19, 1);
+    test("abcdefghij", 1, 8, "abcdefghijklmnopqrst", 0, 20, 1);
+    test("abcdefghij", 1, 8, "abcdefghijklmnopqrst", 0, 21, 1);
+    test("abcdefghij", 1, 8, "abcdefghijklmnopqrst", 1, 0, 8);
+    test("abcdefghij", 1, 8, "abcdefghijklmnopqrst", 1, 1, 7);
+    test("abcdefghij", 1, 8, "abcdefghijklmnopqrst", 1, 9, -1);
+    test("abcdefghij", 1, 8, "abcdefghijklmnopqrst", 1, 18, -10);
+    test("abcdefghij", 1, 8, "abcdefghijklmnopqrst", 1, 19, -11);
+    test("abcdefghij", 1, 8, "abcdefghijklmnopqrst", 1, 20, -11);
+    test("abcdefghij", 1, 8, "abcdefghijklmnopqrst", 10, 0, 8);
+    test("abcdefghij", 1, 8, "abcdefghijklmnopqrst", 10, 1, -9);
+    test("abcdefghij", 1, 8, "abcdefghijklmnopqrst", 10, 5, -9);
+    test("abcdefghij", 1, 8, "abcdefghijklmnopqrst", 10, 9, -9);
+    test("abcdefghij", 1, 8, "abcdefghijklmnopqrst", 10, 10, -9);
+    test("abcdefghij", 1, 8, "abcdefghijklmnopqrst", 10, 11, -9);
+    test("abcdefghij", 1, 8, "abcdefghijklmnopqrst", 19, 0, 8);
+    test("abcdefghij", 1, 8, "abcdefghijklmnopqrst", 19, 1, -18);
+    test("abcdefghij", 1, 8, "abcdefghijklmnopqrst", 19, 2, -18);
+    test("abcdefghij", 1, 8, "abcdefghijklmnopqrst", 20, 0, 8);
+    test("abcdefghij", 1, 8, "abcdefghijklmnopqrst", 20, 1, 8);
+    test("abcdefghij", 1, 8, "abcdefghijklmnopqrst", 21, 0, 0);
+    test("abcdefghij", 1, 9, "", 0, 0, 9);
+    test("abcdefghij", 1, 9, "", 0, 1, 9);
+    test("abcdefghij", 1, 9, "", 1, 0, 0);
+    test("abcdefghij", 1, 9, "abcde", 0, 0, 9);
+    test("abcdefghij", 1, 9, "abcde", 0, 1, 1);
+    test("abcdefghij", 1, 9, "abcde", 0, 2, 1);
+    test("abcdefghij", 1, 9, "abcde", 0, 4, 1);
+    test("abcdefghij", 1, 9, "abcde", 0, 5, 1);
+    test("abcdefghij", 1, 9, "abcde", 0, 6, 1);
+    test("abcdefghij", 1, 9, "abcde", 1, 0, 9);
+    test("abcdefghij", 1, 9, "abcde", 1, 1, 8);
+    test("abcdefghij", 1, 9, "abcde", 1, 2, 7);
+    test("abcdefghij", 1, 9, "abcde", 1, 3, 6);
+    test("abcdefghij", 1, 9, "abcde", 1, 4, 5);
+    test("abcdefghij", 1, 9, "abcde", 1, 5, 5);
+    test("abcdefghij", 1, 9, "abcde", 2, 0, 9);
+    test("abcdefghij", 1, 9, "abcde", 2, 1, -1);
+    test("abcdefghij", 1, 9, "abcde", 2, 2, -1);
+    test("abcdefghij", 1, 9, "abcde", 2, 3, -1);
+    test("abcdefghij", 1, 9, "abcde", 2, 4, -1);
+    test("abcdefghij", 1, 9, "abcde", 4, 0, 9);
+    test("abcdefghij", 1, 9, "abcde", 4, 1, -3);
+    test("abcdefghij", 1, 9, "abcde", 4, 2, -3);
+    test("abcdefghij", 1, 9, "abcde", 5, 0, 9);
+    test("abcdefghij", 1, 9, "abcde", 5, 1, 9);
+    test("abcdefghij", 1, 9, "abcde", 6, 0, 0);
+    test("abcdefghij", 1, 9, "abcdefghij", 0, 0, 9);
+    test("abcdefghij", 1, 9, "abcdefghij", 0, 1, 1);
+    test("abcdefghij", 1, 9, "abcdefghij", 0, 5, 1);
+    test("abcdefghij", 1, 9, "abcdefghij", 0, 9, 1);
+    test("abcdefghij", 1, 9, "abcdefghij", 0, 10, 1);
+    test("abcdefghij", 1, 9, "abcdefghij", 0, 11, 1);
+    test("abcdefghij", 1, 9, "abcdefghij", 1, 0, 9);
+    test("abcdefghij", 1, 9, "abcdefghij", 1, 1, 8);
+    test("abcdefghij", 1, 9, "abcdefghij", 1, 4, 5);
+    test("abcdefghij", 1, 9, "abcdefghij", 1, 8, 1);
+}
+
+void test27()
+{
+    test("abcdefghij", 1, 9, "abcdefghij", 1, 9, 0);
+    test("abcdefghij", 1, 9, "abcdefghij", 1, 10, 0);
+    test("abcdefghij", 1, 9, "abcdefghij", 5, 0, 9);
+    test("abcdefghij", 1, 9, "abcdefghij", 5, 1, -4);
+    test("abcdefghij", 1, 9, "abcdefghij", 5, 2, -4);
+    test("abcdefghij", 1, 9, "abcdefghij", 5, 4, -4);
+    test("abcdefghij", 1, 9, "abcdefghij", 5, 5, -4);
+    test("abcdefghij", 1, 9, "abcdefghij", 5, 6, -4);
+    test("abcdefghij", 1, 9, "abcdefghij", 9, 0, 9);
+    test("abcdefghij", 1, 9, "abcdefghij", 9, 1, -8);
+    test("abcdefghij", 1, 9, "abcdefghij", 9, 2, -8);
+    test("abcdefghij", 1, 9, "abcdefghij", 10, 0, 9);
+    test("abcdefghij", 1, 9, "abcdefghij", 10, 1, 9);
+    test("abcdefghij", 1, 9, "abcdefghij", 11, 0, 0);
+    test("abcdefghij", 1, 9, "abcdefghijklmnopqrst", 0, 0, 9);
+    test("abcdefghij", 1, 9, "abcdefghijklmnopqrst", 0, 1, 1);
+    test("abcdefghij", 1, 9, "abcdefghijklmnopqrst", 0, 10, 1);
+    test("abcdefghij", 1, 9, "abcdefghijklmnopqrst", 0, 19, 1);
+    test("abcdefghij", 1, 9, "abcdefghijklmnopqrst", 0, 20, 1);
+    test("abcdefghij", 1, 9, "abcdefghijklmnopqrst", 0, 21, 1);
+    test("abcdefghij", 1, 9, "abcdefghijklmnopqrst", 1, 0, 9);
+    test("abcdefghij", 1, 9, "abcdefghijklmnopqrst", 1, 1, 8);
+    test("abcdefghij", 1, 9, "abcdefghijklmnopqrst", 1, 9, 0);
+    test("abcdefghij", 1, 9, "abcdefghijklmnopqrst", 1, 18, -9);
+    test("abcdefghij", 1, 9, "abcdefghijklmnopqrst", 1, 19, -10);
+    test("abcdefghij", 1, 9, "abcdefghijklmnopqrst", 1, 20, -10);
+    test("abcdefghij", 1, 9, "abcdefghijklmnopqrst", 10, 0, 9);
+    test("abcdefghij", 1, 9, "abcdefghijklmnopqrst", 10, 1, -9);
+    test("abcdefghij", 1, 9, "abcdefghijklmnopqrst", 10, 5, -9);
+    test("abcdefghij", 1, 9, "abcdefghijklmnopqrst", 10, 9, -9);
+    test("abcdefghij", 1, 9, "abcdefghijklmnopqrst", 10, 10, -9);
+    test("abcdefghij", 1, 9, "abcdefghijklmnopqrst", 10, 11, -9);
+    test("abcdefghij", 1, 9, "abcdefghijklmnopqrst", 19, 0, 9);
+    test("abcdefghij", 1, 9, "abcdefghijklmnopqrst", 19, 1, -18);
+    test("abcdefghij", 1, 9, "abcdefghijklmnopqrst", 19, 2, -18);
+    test("abcdefghij", 1, 9, "abcdefghijklmnopqrst", 20, 0, 9);
+    test("abcdefghij", 1, 9, "abcdefghijklmnopqrst", 20, 1, 9);
+    test("abcdefghij", 1, 9, "abcdefghijklmnopqrst", 21, 0, 0);
+    test("abcdefghij", 1, 10, "", 0, 0, 9);
+    test("abcdefghij", 1, 10, "", 0, 1, 9);
+    test("abcdefghij", 1, 10, "", 1, 0, 0);
+    test("abcdefghij", 1, 10, "abcde", 0, 0, 9);
+    test("abcdefghij", 1, 10, "abcde", 0, 1, 1);
+    test("abcdefghij", 1, 10, "abcde", 0, 2, 1);
+    test("abcdefghij", 1, 10, "abcde", 0, 4, 1);
+    test("abcdefghij", 1, 10, "abcde", 0, 5, 1);
+    test("abcdefghij", 1, 10, "abcde", 0, 6, 1);
+    test("abcdefghij", 1, 10, "abcde", 1, 0, 9);
+    test("abcdefghij", 1, 10, "abcde", 1, 1, 8);
+    test("abcdefghij", 1, 10, "abcde", 1, 2, 7);
+    test("abcdefghij", 1, 10, "abcde", 1, 3, 6);
+    test("abcdefghij", 1, 10, "abcde", 1, 4, 5);
+    test("abcdefghij", 1, 10, "abcde", 1, 5, 5);
+    test("abcdefghij", 1, 10, "abcde", 2, 0, 9);
+    test("abcdefghij", 1, 10, "abcde", 2, 1, -1);
+    test("abcdefghij", 1, 10, "abcde", 2, 2, -1);
+    test("abcdefghij", 1, 10, "abcde", 2, 3, -1);
+    test("abcdefghij", 1, 10, "abcde", 2, 4, -1);
+    test("abcdefghij", 1, 10, "abcde", 4, 0, 9);
+    test("abcdefghij", 1, 10, "abcde", 4, 1, -3);
+    test("abcdefghij", 1, 10, "abcde", 4, 2, -3);
+    test("abcdefghij", 1, 10, "abcde", 5, 0, 9);
+    test("abcdefghij", 1, 10, "abcde", 5, 1, 9);
+    test("abcdefghij", 1, 10, "abcde", 6, 0, 0);
+    test("abcdefghij", 1, 10, "abcdefghij", 0, 0, 9);
+    test("abcdefghij", 1, 10, "abcdefghij", 0, 1, 1);
+    test("abcdefghij", 1, 10, "abcdefghij", 0, 5, 1);
+    test("abcdefghij", 1, 10, "abcdefghij", 0, 9, 1);
+    test("abcdefghij", 1, 10, "abcdefghij", 0, 10, 1);
+    test("abcdefghij", 1, 10, "abcdefghij", 0, 11, 1);
+    test("abcdefghij", 1, 10, "abcdefghij", 1, 0, 9);
+    test("abcdefghij", 1, 10, "abcdefghij", 1, 1, 8);
+    test("abcdefghij", 1, 10, "abcdefghij", 1, 4, 5);
+    test("abcdefghij", 1, 10, "abcdefghij", 1, 8, 1);
+    test("abcdefghij", 1, 10, "abcdefghij", 1, 9, 0);
+    test("abcdefghij", 1, 10, "abcdefghij", 1, 10, 0);
+    test("abcdefghij", 1, 10, "abcdefghij", 5, 0, 9);
+    test("abcdefghij", 1, 10, "abcdefghij", 5, 1, -4);
+    test("abcdefghij", 1, 10, "abcdefghij", 5, 2, -4);
+    test("abcdefghij", 1, 10, "abcdefghij", 5, 4, -4);
+    test("abcdefghij", 1, 10, "abcdefghij", 5, 5, -4);
+    test("abcdefghij", 1, 10, "abcdefghij", 5, 6, -4);
+    test("abcdefghij", 1, 10, "abcdefghij", 9, 0, 9);
+    test("abcdefghij", 1, 10, "abcdefghij", 9, 1, -8);
+    test("abcdefghij", 1, 10, "abcdefghij", 9, 2, -8);
+    test("abcdefghij", 1, 10, "abcdefghij", 10, 0, 9);
+    test("abcdefghij", 1, 10, "abcdefghij", 10, 1, 9);
+    test("abcdefghij", 1, 10, "abcdefghij", 11, 0, 0);
+    test("abcdefghij", 1, 10, "abcdefghijklmnopqrst", 0, 0, 9);
+    test("abcdefghij", 1, 10, "abcdefghijklmnopqrst", 0, 1, 1);
+    test("abcdefghij", 1, 10, "abcdefghijklmnopqrst", 0, 10, 1);
+    test("abcdefghij", 1, 10, "abcdefghijklmnopqrst", 0, 19, 1);
+    test("abcdefghij", 1, 10, "abcdefghijklmnopqrst", 0, 20, 1);
+    test("abcdefghij", 1, 10, "abcdefghijklmnopqrst", 0, 21, 1);
+    test("abcdefghij", 1, 10, "abcdefghijklmnopqrst", 1, 0, 9);
+    test("abcdefghij", 1, 10, "abcdefghijklmnopqrst", 1, 1, 8);
+    test("abcdefghij", 1, 10, "abcdefghijklmnopqrst", 1, 9, 0);
+    test("abcdefghij", 1, 10, "abcdefghijklmnopqrst", 1, 18, -9);
+    test("abcdefghij", 1, 10, "abcdefghijklmnopqrst", 1, 19, -10);
+    test("abcdefghij", 1, 10, "abcdefghijklmnopqrst", 1, 20, -10);
+}
+
+void test28()
+{
+    test("abcdefghij", 1, 10, "abcdefghijklmnopqrst", 10, 0, 9);
+    test("abcdefghij", 1, 10, "abcdefghijklmnopqrst", 10, 1, -9);
+    test("abcdefghij", 1, 10, "abcdefghijklmnopqrst", 10, 5, -9);
+    test("abcdefghij", 1, 10, "abcdefghijklmnopqrst", 10, 9, -9);
+    test("abcdefghij", 1, 10, "abcdefghijklmnopqrst", 10, 10, -9);
+    test("abcdefghij", 1, 10, "abcdefghijklmnopqrst", 10, 11, -9);
+    test("abcdefghij", 1, 10, "abcdefghijklmnopqrst", 19, 0, 9);
+    test("abcdefghij", 1, 10, "abcdefghijklmnopqrst", 19, 1, -18);
+    test("abcdefghij", 1, 10, "abcdefghijklmnopqrst", 19, 2, -18);
+    test("abcdefghij", 1, 10, "abcdefghijklmnopqrst", 20, 0, 9);
+    test("abcdefghij", 1, 10, "abcdefghijklmnopqrst", 20, 1, 9);
+    test("abcdefghij", 1, 10, "abcdefghijklmnopqrst", 21, 0, 0);
+    test("abcdefghij", 5, 0, "", 0, 0, 0);
+    test("abcdefghij", 5, 0, "", 0, 1, 0);
+    test("abcdefghij", 5, 0, "", 1, 0, 0);
+    test("abcdefghij", 5, 0, "abcde", 0, 0, 0);
+    test("abcdefghij", 5, 0, "abcde", 0, 1, -1);
+    test("abcdefghij", 5, 0, "abcde", 0, 2, -2);
+    test("abcdefghij", 5, 0, "abcde", 0, 4, -4);
+    test("abcdefghij", 5, 0, "abcde", 0, 5, -5);
+    test("abcdefghij", 5, 0, "abcde", 0, 6, -5);
+    test("abcdefghij", 5, 0, "abcde", 1, 0, 0);
+    test("abcdefghij", 5, 0, "abcde", 1, 1, -1);
+    test("abcdefghij", 5, 0, "abcde", 1, 2, -2);
+    test("abcdefghij", 5, 0, "abcde", 1, 3, -3);
+    test("abcdefghij", 5, 0, "abcde", 1, 4, -4);
+    test("abcdefghij", 5, 0, "abcde", 1, 5, -4);
+    test("abcdefghij", 5, 0, "abcde", 2, 0, 0);
+    test("abcdefghij", 5, 0, "abcde", 2, 1, -1);
+    test("abcdefghij", 5, 0, "abcde", 2, 2, -2);
+    test("abcdefghij", 5, 0, "abcde", 2, 3, -3);
+    test("abcdefghij", 5, 0, "abcde", 2, 4, -3);
+    test("abcdefghij", 5, 0, "abcde", 4, 0, 0);
+    test("abcdefghij", 5, 0, "abcde", 4, 1, -1);
+    test("abcdefghij", 5, 0, "abcde", 4, 2, -1);
+    test("abcdefghij", 5, 0, "abcde", 5, 0, 0);
+    test("abcdefghij", 5, 0, "abcde", 5, 1, 0);
+    test("abcdefghij", 5, 0, "abcde", 6, 0, 0);
+    test("abcdefghij", 5, 0, "abcdefghij", 0, 0, 0);
+    test("abcdefghij", 5, 0, "abcdefghij", 0, 1, -1);
+    test("abcdefghij", 5, 0, "abcdefghij", 0, 5, -5);
+    test("abcdefghij", 5, 0, "abcdefghij", 0, 9, -9);
+    test("abcdefghij", 5, 0, "abcdefghij", 0, 10, -10);
+    test("abcdefghij", 5, 0, "abcdefghij", 0, 11, -10);
+    test("abcdefghij", 5, 0, "abcdefghij", 1, 0, 0);
+    test("abcdefghij", 5, 0, "abcdefghij", 1, 1, -1);
+    test("abcdefghij", 5, 0, "abcdefghij", 1, 4, -4);
+    test("abcdefghij", 5, 0, "abcdefghij", 1, 8, -8);
+    test("abcdefghij", 5, 0, "abcdefghij", 1, 9, -9);
+    test("abcdefghij", 5, 0, "abcdefghij", 1, 10, -9);
+    test("abcdefghij", 5, 0, "abcdefghij", 5, 0, 0);
+    test("abcdefghij", 5, 0, "abcdefghij", 5, 1, -1);
+    test("abcdefghij", 5, 0, "abcdefghij", 5, 2, -2);
+    test("abcdefghij", 5, 0, "abcdefghij", 5, 4, -4);
+    test("abcdefghij", 5, 0, "abcdefghij", 5, 5, -5);
+    test("abcdefghij", 5, 0, "abcdefghij", 5, 6, -5);
+    test("abcdefghij", 5, 0, "abcdefghij", 9, 0, 0);
+    test("abcdefghij", 5, 0, "abcdefghij", 9, 1, -1);
+    test("abcdefghij", 5, 0, "abcdefghij", 9, 2, -1);
+    test("abcdefghij", 5, 0, "abcdefghij", 10, 0, 0);
+    test("abcdefghij", 5, 0, "abcdefghij", 10, 1, 0);
+    test("abcdefghij", 5, 0, "abcdefghij", 11, 0, 0);
+    test("abcdefghij", 5, 0, "abcdefghijklmnopqrst", 0, 0, 0);
+    test("abcdefghij", 5, 0, "abcdefghijklmnopqrst", 0, 1, -1);
+    test("abcdefghij", 5, 0, "abcdefghijklmnopqrst", 0, 10, -10);
+    test("abcdefghij", 5, 0, "abcdefghijklmnopqrst", 0, 19, -19);
+    test("abcdefghij", 5, 0, "abcdefghijklmnopqrst", 0, 20, -20);
+    test("abcdefghij", 5, 0, "abcdefghijklmnopqrst", 0, 21, -20);
+    test("abcdefghij", 5, 0, "abcdefghijklmnopqrst", 1, 0, 0);
+    test("abcdefghij", 5, 0, "abcdefghijklmnopqrst", 1, 1, -1);
+    test("abcdefghij", 5, 0, "abcdefghijklmnopqrst", 1, 9, -9);
+    test("abcdefghij", 5, 0, "abcdefghijklmnopqrst", 1, 18, -18);
+    test("abcdefghij", 5, 0, "abcdefghijklmnopqrst", 1, 19, -19);
+    test("abcdefghij", 5, 0, "abcdefghijklmnopqrst", 1, 20, -19);
+    test("abcdefghij", 5, 0, "abcdefghijklmnopqrst", 10, 0, 0);
+    test("abcdefghij", 5, 0, "abcdefghijklmnopqrst", 10, 1, -1);
+    test("abcdefghij", 5, 0, "abcdefghijklmnopqrst", 10, 5, -5);
+    test("abcdefghij", 5, 0, "abcdefghijklmnopqrst", 10, 9, -9);
+    test("abcdefghij", 5, 0, "abcdefghijklmnopqrst", 10, 10, -10);
+    test("abcdefghij", 5, 0, "abcdefghijklmnopqrst", 10, 11, -10);
+    test("abcdefghij", 5, 0, "abcdefghijklmnopqrst", 19, 0, 0);
+    test("abcdefghij", 5, 0, "abcdefghijklmnopqrst", 19, 1, -1);
+    test("abcdefghij", 5, 0, "abcdefghijklmnopqrst", 19, 2, -1);
+    test("abcdefghij", 5, 0, "abcdefghijklmnopqrst", 20, 0, 0);
+    test("abcdefghij", 5, 0, "abcdefghijklmnopqrst", 20, 1, 0);
+    test("abcdefghij", 5, 0, "abcdefghijklmnopqrst", 21, 0, 0);
+    test("abcdefghij", 5, 1, "", 0, 0, 1);
+    test("abcdefghij", 5, 1, "", 0, 1, 1);
+    test("abcdefghij", 5, 1, "", 1, 0, 0);
+    test("abcdefghij", 5, 1, "abcde", 0, 0, 1);
+    test("abcdefghij", 5, 1, "abcde", 0, 1, 5);
+    test("abcdefghij", 5, 1, "abcde", 0, 2, 5);
+    test("abcdefghij", 5, 1, "abcde", 0, 4, 5);
+    test("abcdefghij", 5, 1, "abcde", 0, 5, 5);
+    test("abcdefghij", 5, 1, "abcde", 0, 6, 5);
+    test("abcdefghij", 5, 1, "abcde", 1, 0, 1);
+    test("abcdefghij", 5, 1, "abcde", 1, 1, 4);
+    test("abcdefghij", 5, 1, "abcde", 1, 2, 4);
+    test("abcdefghij", 5, 1, "abcde", 1, 3, 4);
+    test("abcdefghij", 5, 1, "abcde", 1, 4, 4);
+}
+
+void test29()
+{
+    test("abcdefghij", 5, 1, "abcde", 1, 5, 4);
+    test("abcdefghij", 5, 1, "abcde", 2, 0, 1);
+    test("abcdefghij", 5, 1, "abcde", 2, 1, 3);
+    test("abcdefghij", 5, 1, "abcde", 2, 2, 3);
+    test("abcdefghij", 5, 1, "abcde", 2, 3, 3);
+    test("abcdefghij", 5, 1, "abcde", 2, 4, 3);
+    test("abcdefghij", 5, 1, "abcde", 4, 0, 1);
+    test("abcdefghij", 5, 1, "abcde", 4, 1, 1);
+    test("abcdefghij", 5, 1, "abcde", 4, 2, 1);
+    test("abcdefghij", 5, 1, "abcde", 5, 0, 1);
+    test("abcdefghij", 5, 1, "abcde", 5, 1, 1);
+    test("abcdefghij", 5, 1, "abcde", 6, 0, 0);
+    test("abcdefghij", 5, 1, "abcdefghij", 0, 0, 1);
+    test("abcdefghij", 5, 1, "abcdefghij", 0, 1, 5);
+    test("abcdefghij", 5, 1, "abcdefghij", 0, 5, 5);
+    test("abcdefghij", 5, 1, "abcdefghij", 0, 9, 5);
+    test("abcdefghij", 5, 1, "abcdefghij", 0, 10, 5);
+    test("abcdefghij", 5, 1, "abcdefghij", 0, 11, 5);
+    test("abcdefghij", 5, 1, "abcdefghij", 1, 0, 1);
+    test("abcdefghij", 5, 1, "abcdefghij", 1, 1, 4);
+    test("abcdefghij", 5, 1, "abcdefghij", 1, 4, 4);
+    test("abcdefghij", 5, 1, "abcdefghij", 1, 8, 4);
+    test("abcdefghij", 5, 1, "abcdefghij", 1, 9, 4);
+    test("abcdefghij", 5, 1, "abcdefghij", 1, 10, 4);
+    test("abcdefghij", 5, 1, "abcdefghij", 5, 0, 1);
+    test("abcdefghij", 5, 1, "abcdefghij", 5, 1, 0);
+    test("abcdefghij", 5, 1, "abcdefghij", 5, 2, -1);
+    test("abcdefghij", 5, 1, "abcdefghij", 5, 4, -3);
+    test("abcdefghij", 5, 1, "abcdefghij", 5, 5, -4);
+    test("abcdefghij", 5, 1, "abcdefghij", 5, 6, -4);
+    test("abcdefghij", 5, 1, "abcdefghij", 9, 0, 1);
+    test("abcdefghij", 5, 1, "abcdefghij", 9, 1, -4);
+    test("abcdefghij", 5, 1, "abcdefghij", 9, 2, -4);
+    test("abcdefghij", 5, 1, "abcdefghij", 10, 0, 1);
+    test("abcdefghij", 5, 1, "abcdefghij", 10, 1, 1);
+    test("abcdefghij", 5, 1, "abcdefghij", 11, 0, 0);
+    test("abcdefghij", 5, 1, "abcdefghijklmnopqrst", 0, 0, 1);
+    test("abcdefghij", 5, 1, "abcdefghijklmnopqrst", 0, 1, 5);
+    test("abcdefghij", 5, 1, "abcdefghijklmnopqrst", 0, 10, 5);
+    test("abcdefghij", 5, 1, "abcdefghijklmnopqrst", 0, 19, 5);
+    test("abcdefghij", 5, 1, "abcdefghijklmnopqrst", 0, 20, 5);
+    test("abcdefghij", 5, 1, "abcdefghijklmnopqrst", 0, 21, 5);
+    test("abcdefghij", 5, 1, "abcdefghijklmnopqrst", 1, 0, 1);
+    test("abcdefghij", 5, 1, "abcdefghijklmnopqrst", 1, 1, 4);
+    test("abcdefghij", 5, 1, "abcdefghijklmnopqrst", 1, 9, 4);
+    test("abcdefghij", 5, 1, "abcdefghijklmnopqrst", 1, 18, 4);
+    test("abcdefghij", 5, 1, "abcdefghijklmnopqrst", 1, 19, 4);
+    test("abcdefghij", 5, 1, "abcdefghijklmnopqrst", 1, 20, 4);
+    test("abcdefghij", 5, 1, "abcdefghijklmnopqrst", 10, 0, 1);
+    test("abcdefghij", 5, 1, "abcdefghijklmnopqrst", 10, 1, -5);
+    test("abcdefghij", 5, 1, "abcdefghijklmnopqrst", 10, 5, -5);
+    test("abcdefghij", 5, 1, "abcdefghijklmnopqrst", 10, 9, -5);
+    test("abcdefghij", 5, 1, "abcdefghijklmnopqrst", 10, 10, -5);
+    test("abcdefghij", 5, 1, "abcdefghijklmnopqrst", 10, 11, -5);
+    test("abcdefghij", 5, 1, "abcdefghijklmnopqrst", 19, 0, 1);
+    test("abcdefghij", 5, 1, "abcdefghijklmnopqrst", 19, 1, -14);
+    test("abcdefghij", 5, 1, "abcdefghijklmnopqrst", 19, 2, -14);
+    test("abcdefghij", 5, 1, "abcdefghijklmnopqrst", 20, 0, 1);
+    test("abcdefghij", 5, 1, "abcdefghijklmnopqrst", 20, 1, 1);
+    test("abcdefghij", 5, 1, "abcdefghijklmnopqrst", 21, 0, 0);
+    test("abcdefghij", 5, 2, "", 0, 0, 2);
+    test("abcdefghij", 5, 2, "", 0, 1, 2);
+    test("abcdefghij", 5, 2, "", 1, 0, 0);
+    test("abcdefghij", 5, 2, "abcde", 0, 0, 2);
+    test("abcdefghij", 5, 2, "abcde", 0, 1, 5);
+    test("abcdefghij", 5, 2, "abcde", 0, 2, 5);
+    test("abcdefghij", 5, 2, "abcde", 0, 4, 5);
+    test("abcdefghij", 5, 2, "abcde", 0, 5, 5);
+    test("abcdefghij", 5, 2, "abcde", 0, 6, 5);
+    test("abcdefghij", 5, 2, "abcde", 1, 0, 2);
+    test("abcdefghij", 5, 2, "abcde", 1, 1, 4);
+    test("abcdefghij", 5, 2, "abcde", 1, 2, 4);
+    test("abcdefghij", 5, 2, "abcde", 1, 3, 4);
+    test("abcdefghij", 5, 2, "abcde", 1, 4, 4);
+    test("abcdefghij", 5, 2, "abcde", 1, 5, 4);
+    test("abcdefghij", 5, 2, "abcde", 2, 0, 2);
+    test("abcdefghij", 5, 2, "abcde", 2, 1, 3);
+    test("abcdefghij", 5, 2, "abcde", 2, 2, 3);
+    test("abcdefghij", 5, 2, "abcde", 2, 3, 3);
+    test("abcdefghij", 5, 2, "abcde", 2, 4, 3);
+    test("abcdefghij", 5, 2, "abcde", 4, 0, 2);
+    test("abcdefghij", 5, 2, "abcde", 4, 1, 1);
+    test("abcdefghij", 5, 2, "abcde", 4, 2, 1);
+    test("abcdefghij", 5, 2, "abcde", 5, 0, 2);
+    test("abcdefghij", 5, 2, "abcde", 5, 1, 2);
+    test("abcdefghij", 5, 2, "abcde", 6, 0, 0);
+    test("abcdefghij", 5, 2, "abcdefghij", 0, 0, 2);
+    test("abcdefghij", 5, 2, "abcdefghij", 0, 1, 5);
+    test("abcdefghij", 5, 2, "abcdefghij", 0, 5, 5);
+    test("abcdefghij", 5, 2, "abcdefghij", 0, 9, 5);
+    test("abcdefghij", 5, 2, "abcdefghij", 0, 10, 5);
+    test("abcdefghij", 5, 2, "abcdefghij", 0, 11, 5);
+    test("abcdefghij", 5, 2, "abcdefghij", 1, 0, 2);
+    test("abcdefghij", 5, 2, "abcdefghij", 1, 1, 4);
+    test("abcdefghij", 5, 2, "abcdefghij", 1, 4, 4);
+    test("abcdefghij", 5, 2, "abcdefghij", 1, 8, 4);
+    test("abcdefghij", 5, 2, "abcdefghij", 1, 9, 4);
+    test("abcdefghij", 5, 2, "abcdefghij", 1, 10, 4);
+    test("abcdefghij", 5, 2, "abcdefghij", 5, 0, 2);
+    test("abcdefghij", 5, 2, "abcdefghij", 5, 1, 1);
+}
+
+void test30()
+{
+    test("abcdefghij", 5, 2, "abcdefghij", 5, 2, 0);
+    test("abcdefghij", 5, 2, "abcdefghij", 5, 4, -2);
+    test("abcdefghij", 5, 2, "abcdefghij", 5, 5, -3);
+    test("abcdefghij", 5, 2, "abcdefghij", 5, 6, -3);
+    test("abcdefghij", 5, 2, "abcdefghij", 9, 0, 2);
+    test("abcdefghij", 5, 2, "abcdefghij", 9, 1, -4);
+    test("abcdefghij", 5, 2, "abcdefghij", 9, 2, -4);
+    test("abcdefghij", 5, 2, "abcdefghij", 10, 0, 2);
+    test("abcdefghij", 5, 2, "abcdefghij", 10, 1, 2);
+    test("abcdefghij", 5, 2, "abcdefghij", 11, 0, 0);
+    test("abcdefghij", 5, 2, "abcdefghijklmnopqrst", 0, 0, 2);
+    test("abcdefghij", 5, 2, "abcdefghijklmnopqrst", 0, 1, 5);
+    test("abcdefghij", 5, 2, "abcdefghijklmnopqrst", 0, 10, 5);
+    test("abcdefghij", 5, 2, "abcdefghijklmnopqrst", 0, 19, 5);
+    test("abcdefghij", 5, 2, "abcdefghijklmnopqrst", 0, 20, 5);
+    test("abcdefghij", 5, 2, "abcdefghijklmnopqrst", 0, 21, 5);
+    test("abcdefghij", 5, 2, "abcdefghijklmnopqrst", 1, 0, 2);
+    test("abcdefghij", 5, 2, "abcdefghijklmnopqrst", 1, 1, 4);
+    test("abcdefghij", 5, 2, "abcdefghijklmnopqrst", 1, 9, 4);
+    test("abcdefghij", 5, 2, "abcdefghijklmnopqrst", 1, 18, 4);
+    test("abcdefghij", 5, 2, "abcdefghijklmnopqrst", 1, 19, 4);
+    test("abcdefghij", 5, 2, "abcdefghijklmnopqrst", 1, 20, 4);
+    test("abcdefghij", 5, 2, "abcdefghijklmnopqrst", 10, 0, 2);
+    test("abcdefghij", 5, 2, "abcdefghijklmnopqrst", 10, 1, -5);
+    test("abcdefghij", 5, 2, "abcdefghijklmnopqrst", 10, 5, -5);
+    test("abcdefghij", 5, 2, "abcdefghijklmnopqrst", 10, 9, -5);
+    test("abcdefghij", 5, 2, "abcdefghijklmnopqrst", 10, 10, -5);
+    test("abcdefghij", 5, 2, "abcdefghijklmnopqrst", 10, 11, -5);
+    test("abcdefghij", 5, 2, "abcdefghijklmnopqrst", 19, 0, 2);
+    test("abcdefghij", 5, 2, "abcdefghijklmnopqrst", 19, 1, -14);
+    test("abcdefghij", 5, 2, "abcdefghijklmnopqrst", 19, 2, -14);
+    test("abcdefghij", 5, 2, "abcdefghijklmnopqrst", 20, 0, 2);
+    test("abcdefghij", 5, 2, "abcdefghijklmnopqrst", 20, 1, 2);
+    test("abcdefghij", 5, 2, "abcdefghijklmnopqrst", 21, 0, 0);
+    test("abcdefghij", 5, 4, "", 0, 0, 4);
+    test("abcdefghij", 5, 4, "", 0, 1, 4);
+    test("abcdefghij", 5, 4, "", 1, 0, 0);
+    test("abcdefghij", 5, 4, "abcde", 0, 0, 4);
+    test("abcdefghij", 5, 4, "abcde", 0, 1, 5);
+    test("abcdefghij", 5, 4, "abcde", 0, 2, 5);
+    test("abcdefghij", 5, 4, "abcde", 0, 4, 5);
+    test("abcdefghij", 5, 4, "abcde", 0, 5, 5);
+    test("abcdefghij", 5, 4, "abcde", 0, 6, 5);
+    test("abcdefghij", 5, 4, "abcde", 1, 0, 4);
+    test("abcdefghij", 5, 4, "abcde", 1, 1, 4);
+    test("abcdefghij", 5, 4, "abcde", 1, 2, 4);
+    test("abcdefghij", 5, 4, "abcde", 1, 3, 4);
+    test("abcdefghij", 5, 4, "abcde", 1, 4, 4);
+    test("abcdefghij", 5, 4, "abcde", 1, 5, 4);
+    test("abcdefghij", 5, 4, "abcde", 2, 0, 4);
+    test("abcdefghij", 5, 4, "abcde", 2, 1, 3);
+    test("abcdefghij", 5, 4, "abcde", 2, 2, 3);
+    test("abcdefghij", 5, 4, "abcde", 2, 3, 3);
+    test("abcdefghij", 5, 4, "abcde", 2, 4, 3);
+    test("abcdefghij", 5, 4, "abcde", 4, 0, 4);
+    test("abcdefghij", 5, 4, "abcde", 4, 1, 1);
+    test("abcdefghij", 5, 4, "abcde", 4, 2, 1);
+    test("abcdefghij", 5, 4, "abcde", 5, 0, 4);
+    test("abcdefghij", 5, 4, "abcde", 5, 1, 4);
+    test("abcdefghij", 5, 4, "abcde", 6, 0, 0);
+    test("abcdefghij", 5, 4, "abcdefghij", 0, 0, 4);
+    test("abcdefghij", 5, 4, "abcdefghij", 0, 1, 5);
+    test("abcdefghij", 5, 4, "abcdefghij", 0, 5, 5);
+    test("abcdefghij", 5, 4, "abcdefghij", 0, 9, 5);
+    test("abcdefghij", 5, 4, "abcdefghij", 0, 10, 5);
+    test("abcdefghij", 5, 4, "abcdefghij", 0, 11, 5);
+    test("abcdefghij", 5, 4, "abcdefghij", 1, 0, 4);
+    test("abcdefghij", 5, 4, "abcdefghij", 1, 1, 4);
+    test("abcdefghij", 5, 4, "abcdefghij", 1, 4, 4);
+    test("abcdefghij", 5, 4, "abcdefghij", 1, 8, 4);
+    test("abcdefghij", 5, 4, "abcdefghij", 1, 9, 4);
+    test("abcdefghij", 5, 4, "abcdefghij", 1, 10, 4);
+    test("abcdefghij", 5, 4, "abcdefghij", 5, 0, 4);
+    test("abcdefghij", 5, 4, "abcdefghij", 5, 1, 3);
+    test("abcdefghij", 5, 4, "abcdefghij", 5, 2, 2);
+    test("abcdefghij", 5, 4, "abcdefghij", 5, 4, 0);
+    test("abcdefghij", 5, 4, "abcdefghij", 5, 5, -1);
+    test("abcdefghij", 5, 4, "abcdefghij", 5, 6, -1);
+    test("abcdefghij", 5, 4, "abcdefghij", 9, 0, 4);
+    test("abcdefghij", 5, 4, "abcdefghij", 9, 1, -4);
+    test("abcdefghij", 5, 4, "abcdefghij", 9, 2, -4);
+    test("abcdefghij", 5, 4, "abcdefghij", 10, 0, 4);
+    test("abcdefghij", 5, 4, "abcdefghij", 10, 1, 4);
+    test("abcdefghij", 5, 4, "abcdefghij", 11, 0, 0);
+    test("abcdefghij", 5, 4, "abcdefghijklmnopqrst", 0, 0, 4);
+    test("abcdefghij", 5, 4, "abcdefghijklmnopqrst", 0, 1, 5);
+    test("abcdefghij", 5, 4, "abcdefghijklmnopqrst", 0, 10, 5);
+    test("abcdefghij", 5, 4, "abcdefghijklmnopqrst", 0, 19, 5);
+    test("abcdefghij", 5, 4, "abcdefghijklmnopqrst", 0, 20, 5);
+    test("abcdefghij", 5, 4, "abcdefghijklmnopqrst", 0, 21, 5);
+    test("abcdefghij", 5, 4, "abcdefghijklmnopqrst", 1, 0, 4);
+    test("abcdefghij", 5, 4, "abcdefghijklmnopqrst", 1, 1, 4);
+    test("abcdefghij", 5, 4, "abcdefghijklmnopqrst", 1, 9, 4);
+    test("abcdefghij", 5, 4, "abcdefghijklmnopqrst", 1, 18, 4);
+    test("abcdefghij", 5, 4, "abcdefghijklmnopqrst", 1, 19, 4);
+    test("abcdefghij", 5, 4, "abcdefghijklmnopqrst", 1, 20, 4);
+    test("abcdefghij", 5, 4, "abcdefghijklmnopqrst", 10, 0, 4);
+    test("abcdefghij", 5, 4, "abcdefghijklmnopqrst", 10, 1, -5);
+    test("abcdefghij", 5, 4, "abcdefghijklmnopqrst", 10, 5, -5);
+    test("abcdefghij", 5, 4, "abcdefghijklmnopqrst", 10, 9, -5);
+}
+
+void test31()
+{
+    test("abcdefghij", 5, 4, "abcdefghijklmnopqrst", 10, 10, -5);
+    test("abcdefghij", 5, 4, "abcdefghijklmnopqrst", 10, 11, -5);
+    test("abcdefghij", 5, 4, "abcdefghijklmnopqrst", 19, 0, 4);
+    test("abcdefghij", 5, 4, "abcdefghijklmnopqrst", 19, 1, -14);
+    test("abcdefghij", 5, 4, "abcdefghijklmnopqrst", 19, 2, -14);
+    test("abcdefghij", 5, 4, "abcdefghijklmnopqrst", 20, 0, 4);
+    test("abcdefghij", 5, 4, "abcdefghijklmnopqrst", 20, 1, 4);
+    test("abcdefghij", 5, 4, "abcdefghijklmnopqrst", 21, 0, 0);
+    test("abcdefghij", 5, 5, "", 0, 0, 5);
+    test("abcdefghij", 5, 5, "", 0, 1, 5);
+    test("abcdefghij", 5, 5, "", 1, 0, 0);
+    test("abcdefghij", 5, 5, "abcde", 0, 0, 5);
+    test("abcdefghij", 5, 5, "abcde", 0, 1, 5);
+    test("abcdefghij", 5, 5, "abcde", 0, 2, 5);
+    test("abcdefghij", 5, 5, "abcde", 0, 4, 5);
+    test("abcdefghij", 5, 5, "abcde", 0, 5, 5);
+    test("abcdefghij", 5, 5, "abcde", 0, 6, 5);
+    test("abcdefghij", 5, 5, "abcde", 1, 0, 5);
+    test("abcdefghij", 5, 5, "abcde", 1, 1, 4);
+    test("abcdefghij", 5, 5, "abcde", 1, 2, 4);
+    test("abcdefghij", 5, 5, "abcde", 1, 3, 4);
+    test("abcdefghij", 5, 5, "abcde", 1, 4, 4);
+    test("abcdefghij", 5, 5, "abcde", 1, 5, 4);
+    test("abcdefghij", 5, 5, "abcde", 2, 0, 5);
+    test("abcdefghij", 5, 5, "abcde", 2, 1, 3);
+    test("abcdefghij", 5, 5, "abcde", 2, 2, 3);
+    test("abcdefghij", 5, 5, "abcde", 2, 3, 3);
+    test("abcdefghij", 5, 5, "abcde", 2, 4, 3);
+    test("abcdefghij", 5, 5, "abcde", 4, 0, 5);
+    test("abcdefghij", 5, 5, "abcde", 4, 1, 1);
+    test("abcdefghij", 5, 5, "abcde", 4, 2, 1);
+    test("abcdefghij", 5, 5, "abcde", 5, 0, 5);
+    test("abcdefghij", 5, 5, "abcde", 5, 1, 5);
+    test("abcdefghij", 5, 5, "abcde", 6, 0, 0);
+    test("abcdefghij", 5, 5, "abcdefghij", 0, 0, 5);
+    test("abcdefghij", 5, 5, "abcdefghij", 0, 1, 5);
+    test("abcdefghij", 5, 5, "abcdefghij", 0, 5, 5);
+    test("abcdefghij", 5, 5, "abcdefghij", 0, 9, 5);
+    test("abcdefghij", 5, 5, "abcdefghij", 0, 10, 5);
+    test("abcdefghij", 5, 5, "abcdefghij", 0, 11, 5);
+    test("abcdefghij", 5, 5, "abcdefghij", 1, 0, 5);
+    test("abcdefghij", 5, 5, "abcdefghij", 1, 1, 4);
+    test("abcdefghij", 5, 5, "abcdefghij", 1, 4, 4);
+    test("abcdefghij", 5, 5, "abcdefghij", 1, 8, 4);
+    test("abcdefghij", 5, 5, "abcdefghij", 1, 9, 4);
+    test("abcdefghij", 5, 5, "abcdefghij", 1, 10, 4);
+    test("abcdefghij", 5, 5, "abcdefghij", 5, 0, 5);
+    test("abcdefghij", 5, 5, "abcdefghij", 5, 1, 4);
+    test("abcdefghij", 5, 5, "abcdefghij", 5, 2, 3);
+    test("abcdefghij", 5, 5, "abcdefghij", 5, 4, 1);
+    test("abcdefghij", 5, 5, "abcdefghij", 5, 5, 0);
+    test("abcdefghij", 5, 5, "abcdefghij", 5, 6, 0);
+    test("abcdefghij", 5, 5, "abcdefghij", 9, 0, 5);
+    test("abcdefghij", 5, 5, "abcdefghij", 9, 1, -4);
+    test("abcdefghij", 5, 5, "abcdefghij", 9, 2, -4);
+    test("abcdefghij", 5, 5, "abcdefghij", 10, 0, 5);
+    test("abcdefghij", 5, 5, "abcdefghij", 10, 1, 5);
+    test("abcdefghij", 5, 5, "abcdefghij", 11, 0, 0);
+    test("abcdefghij", 5, 5, "abcdefghijklmnopqrst", 0, 0, 5);
+    test("abcdefghij", 5, 5, "abcdefghijklmnopqrst", 0, 1, 5);
+    test("abcdefghij", 5, 5, "abcdefghijklmnopqrst", 0, 10, 5);
+    test("abcdefghij", 5, 5, "abcdefghijklmnopqrst", 0, 19, 5);
+    test("abcdefghij", 5, 5, "abcdefghijklmnopqrst", 0, 20, 5);
+    test("abcdefghij", 5, 5, "abcdefghijklmnopqrst", 0, 21, 5);
+    test("abcdefghij", 5, 5, "abcdefghijklmnopqrst", 1, 0, 5);
+    test("abcdefghij", 5, 5, "abcdefghijklmnopqrst", 1, 1, 4);
+    test("abcdefghij", 5, 5, "abcdefghijklmnopqrst", 1, 9, 4);
+    test("abcdefghij", 5, 5, "abcdefghijklmnopqrst", 1, 18, 4);
+    test("abcdefghij", 5, 5, "abcdefghijklmnopqrst", 1, 19, 4);
+    test("abcdefghij", 5, 5, "abcdefghijklmnopqrst", 1, 20, 4);
+    test("abcdefghij", 5, 5, "abcdefghijklmnopqrst", 10, 0, 5);
+    test("abcdefghij", 5, 5, "abcdefghijklmnopqrst", 10, 1, -5);
+    test("abcdefghij", 5, 5, "abcdefghijklmnopqrst", 10, 5, -5);
+    test("abcdefghij", 5, 5, "abcdefghijklmnopqrst", 10, 9, -5);
+    test("abcdefghij", 5, 5, "abcdefghijklmnopqrst", 10, 10, -5);
+    test("abcdefghij", 5, 5, "abcdefghijklmnopqrst", 10, 11, -5);
+    test("abcdefghij", 5, 5, "abcdefghijklmnopqrst", 19, 0, 5);
+    test("abcdefghij", 5, 5, "abcdefghijklmnopqrst", 19, 1, -14);
+    test("abcdefghij", 5, 5, "abcdefghijklmnopqrst", 19, 2, -14);
+    test("abcdefghij", 5, 5, "abcdefghijklmnopqrst", 20, 0, 5);
+    test("abcdefghij", 5, 5, "abcdefghijklmnopqrst", 20, 1, 5);
+    test("abcdefghij", 5, 5, "abcdefghijklmnopqrst", 21, 0, 0);
+    test("abcdefghij", 5, 6, "", 0, 0, 5);
+    test("abcdefghij", 5, 6, "", 0, 1, 5);
+    test("abcdefghij", 5, 6, "", 1, 0, 0);
+    test("abcdefghij", 5, 6, "abcde", 0, 0, 5);
+    test("abcdefghij", 5, 6, "abcde", 0, 1, 5);
+    test("abcdefghij", 5, 6, "abcde", 0, 2, 5);
+    test("abcdefghij", 5, 6, "abcde", 0, 4, 5);
+    test("abcdefghij", 5, 6, "abcde", 0, 5, 5);
+    test("abcdefghij", 5, 6, "abcde", 0, 6, 5);
+    test("abcdefghij", 5, 6, "abcde", 1, 0, 5);
+    test("abcdefghij", 5, 6, "abcde", 1, 1, 4);
+    test("abcdefghij", 5, 6, "abcde", 1, 2, 4);
+    test("abcdefghij", 5, 6, "abcde", 1, 3, 4);
+    test("abcdefghij", 5, 6, "abcde", 1, 4, 4);
+    test("abcdefghij", 5, 6, "abcde", 1, 5, 4);
+    test("abcdefghij", 5, 6, "abcde", 2, 0, 5);
+    test("abcdefghij", 5, 6, "abcde", 2, 1, 3);
+    test("abcdefghij", 5, 6, "abcde", 2, 2, 3);
+}
+
+void test32()
+{
+    test("abcdefghij", 5, 6, "abcde", 2, 3, 3);
+    test("abcdefghij", 5, 6, "abcde", 2, 4, 3);
+    test("abcdefghij", 5, 6, "abcde", 4, 0, 5);
+    test("abcdefghij", 5, 6, "abcde", 4, 1, 1);
+    test("abcdefghij", 5, 6, "abcde", 4, 2, 1);
+    test("abcdefghij", 5, 6, "abcde", 5, 0, 5);
+    test("abcdefghij", 5, 6, "abcde", 5, 1, 5);
+    test("abcdefghij", 5, 6, "abcde", 6, 0, 0);
+    test("abcdefghij", 5, 6, "abcdefghij", 0, 0, 5);
+    test("abcdefghij", 5, 6, "abcdefghij", 0, 1, 5);
+    test("abcdefghij", 5, 6, "abcdefghij", 0, 5, 5);
+    test("abcdefghij", 5, 6, "abcdefghij", 0, 9, 5);
+    test("abcdefghij", 5, 6, "abcdefghij", 0, 10, 5);
+    test("abcdefghij", 5, 6, "abcdefghij", 0, 11, 5);
+    test("abcdefghij", 5, 6, "abcdefghij", 1, 0, 5);
+    test("abcdefghij", 5, 6, "abcdefghij", 1, 1, 4);
+    test("abcdefghij", 5, 6, "abcdefghij", 1, 4, 4);
+    test("abcdefghij", 5, 6, "abcdefghij", 1, 8, 4);
+    test("abcdefghij", 5, 6, "abcdefghij", 1, 9, 4);
+    test("abcdefghij", 5, 6, "abcdefghij", 1, 10, 4);
+    test("abcdefghij", 5, 6, "abcdefghij", 5, 0, 5);
+    test("abcdefghij", 5, 6, "abcdefghij", 5, 1, 4);
+    test("abcdefghij", 5, 6, "abcdefghij", 5, 2, 3);
+    test("abcdefghij", 5, 6, "abcdefghij", 5, 4, 1);
+    test("abcdefghij", 5, 6, "abcdefghij", 5, 5, 0);
+    test("abcdefghij", 5, 6, "abcdefghij", 5, 6, 0);
+    test("abcdefghij", 5, 6, "abcdefghij", 9, 0, 5);
+    test("abcdefghij", 5, 6, "abcdefghij", 9, 1, -4);
+    test("abcdefghij", 5, 6, "abcdefghij", 9, 2, -4);
+    test("abcdefghij", 5, 6, "abcdefghij", 10, 0, 5);
+    test("abcdefghij", 5, 6, "abcdefghij", 10, 1, 5);
+    test("abcdefghij", 5, 6, "abcdefghij", 11, 0, 0);
+    test("abcdefghij", 5, 6, "abcdefghijklmnopqrst", 0, 0, 5);
+    test("abcdefghij", 5, 6, "abcdefghijklmnopqrst", 0, 1, 5);
+    test("abcdefghij", 5, 6, "abcdefghijklmnopqrst", 0, 10, 5);
+    test("abcdefghij", 5, 6, "abcdefghijklmnopqrst", 0, 19, 5);
+    test("abcdefghij", 5, 6, "abcdefghijklmnopqrst", 0, 20, 5);
+    test("abcdefghij", 5, 6, "abcdefghijklmnopqrst", 0, 21, 5);
+    test("abcdefghij", 5, 6, "abcdefghijklmnopqrst", 1, 0, 5);
+    test("abcdefghij", 5, 6, "abcdefghijklmnopqrst", 1, 1, 4);
+    test("abcdefghij", 5, 6, "abcdefghijklmnopqrst", 1, 9, 4);
+    test("abcdefghij", 5, 6, "abcdefghijklmnopqrst", 1, 18, 4);
+    test("abcdefghij", 5, 6, "abcdefghijklmnopqrst", 1, 19, 4);
+    test("abcdefghij", 5, 6, "abcdefghijklmnopqrst", 1, 20, 4);
+    test("abcdefghij", 5, 6, "abcdefghijklmnopqrst", 10, 0, 5);
+    test("abcdefghij", 5, 6, "abcdefghijklmnopqrst", 10, 1, -5);
+    test("abcdefghij", 5, 6, "abcdefghijklmnopqrst", 10, 5, -5);
+    test("abcdefghij", 5, 6, "abcdefghijklmnopqrst", 10, 9, -5);
+    test("abcdefghij", 5, 6, "abcdefghijklmnopqrst", 10, 10, -5);
+    test("abcdefghij", 5, 6, "abcdefghijklmnopqrst", 10, 11, -5);
+    test("abcdefghij", 5, 6, "abcdefghijklmnopqrst", 19, 0, 5);
+    test("abcdefghij", 5, 6, "abcdefghijklmnopqrst", 19, 1, -14);
+    test("abcdefghij", 5, 6, "abcdefghijklmnopqrst", 19, 2, -14);
+    test("abcdefghij", 5, 6, "abcdefghijklmnopqrst", 20, 0, 5);
+    test("abcdefghij", 5, 6, "abcdefghijklmnopqrst", 20, 1, 5);
+    test("abcdefghij", 5, 6, "abcdefghijklmnopqrst", 21, 0, 0);
+    test("abcdefghij", 9, 0, "", 0, 0, 0);
+    test("abcdefghij", 9, 0, "", 0, 1, 0);
+    test("abcdefghij", 9, 0, "", 1, 0, 0);
+    test("abcdefghij", 9, 0, "abcde", 0, 0, 0);
+    test("abcdefghij", 9, 0, "abcde", 0, 1, -1);
+    test("abcdefghij", 9, 0, "abcde", 0, 2, -2);
+    test("abcdefghij", 9, 0, "abcde", 0, 4, -4);
+    test("abcdefghij", 9, 0, "abcde", 0, 5, -5);
+    test("abcdefghij", 9, 0, "abcde", 0, 6, -5);
+    test("abcdefghij", 9, 0, "abcde", 1, 0, 0);
+    test("abcdefghij", 9, 0, "abcde", 1, 1, -1);
+    test("abcdefghij", 9, 0, "abcde", 1, 2, -2);
+    test("abcdefghij", 9, 0, "abcde", 1, 3, -3);
+    test("abcdefghij", 9, 0, "abcde", 1, 4, -4);
+    test("abcdefghij", 9, 0, "abcde", 1, 5, -4);
+    test("abcdefghij", 9, 0, "abcde", 2, 0, 0);
+    test("abcdefghij", 9, 0, "abcde", 2, 1, -1);
+    test("abcdefghij", 9, 0, "abcde", 2, 2, -2);
+    test("abcdefghij", 9, 0, "abcde", 2, 3, -3);
+    test("abcdefghij", 9, 0, "abcde", 2, 4, -3);
+    test("abcdefghij", 9, 0, "abcde", 4, 0, 0);
+    test("abcdefghij", 9, 0, "abcde", 4, 1, -1);
+    test("abcdefghij", 9, 0, "abcde", 4, 2, -1);
+    test("abcdefghij", 9, 0, "abcde", 5, 0, 0);
+    test("abcdefghij", 9, 0, "abcde", 5, 1, 0);
+    test("abcdefghij", 9, 0, "abcde", 6, 0, 0);
+    test("abcdefghij", 9, 0, "abcdefghij", 0, 0, 0);
+    test("abcdefghij", 9, 0, "abcdefghij", 0, 1, -1);
+    test("abcdefghij", 9, 0, "abcdefghij", 0, 5, -5);
+    test("abcdefghij", 9, 0, "abcdefghij", 0, 9, -9);
+    test("abcdefghij", 9, 0, "abcdefghij", 0, 10, -10);
+    test("abcdefghij", 9, 0, "abcdefghij", 0, 11, -10);
+    test("abcdefghij", 9, 0, "abcdefghij", 1, 0, 0);
+    test("abcdefghij", 9, 0, "abcdefghij", 1, 1, -1);
+    test("abcdefghij", 9, 0, "abcdefghij", 1, 4, -4);
+    test("abcdefghij", 9, 0, "abcdefghij", 1, 8, -8);
+    test("abcdefghij", 9, 0, "abcdefghij", 1, 9, -9);
+    test("abcdefghij", 9, 0, "abcdefghij", 1, 10, -9);
+    test("abcdefghij", 9, 0, "abcdefghij", 5, 0, 0);
+    test("abcdefghij", 9, 0, "abcdefghij", 5, 1, -1);
+    test("abcdefghij", 9, 0, "abcdefghij", 5, 2, -2);
+    test("abcdefghij", 9, 0, "abcdefghij", 5, 4, -4);
+    test("abcdefghij", 9, 0, "abcdefghij", 5, 5, -5);
+    test("abcdefghij", 9, 0, "abcdefghij", 5, 6, -5);
+}
+
+void test33()
+{
+    test("abcdefghij", 9, 0, "abcdefghij", 9, 0, 0);
+    test("abcdefghij", 9, 0, "abcdefghij", 9, 1, -1);
+    test("abcdefghij", 9, 0, "abcdefghij", 9, 2, -1);
+    test("abcdefghij", 9, 0, "abcdefghij", 10, 0, 0);
+    test("abcdefghij", 9, 0, "abcdefghij", 10, 1, 0);
+    test("abcdefghij", 9, 0, "abcdefghij", 11, 0, 0);
+    test("abcdefghij", 9, 0, "abcdefghijklmnopqrst", 0, 0, 0);
+    test("abcdefghij", 9, 0, "abcdefghijklmnopqrst", 0, 1, -1);
+    test("abcdefghij", 9, 0, "abcdefghijklmnopqrst", 0, 10, -10);
+    test("abcdefghij", 9, 0, "abcdefghijklmnopqrst", 0, 19, -19);
+    test("abcdefghij", 9, 0, "abcdefghijklmnopqrst", 0, 20, -20);
+    test("abcdefghij", 9, 0, "abcdefghijklmnopqrst", 0, 21, -20);
+    test("abcdefghij", 9, 0, "abcdefghijklmnopqrst", 1, 0, 0);
+    test("abcdefghij", 9, 0, "abcdefghijklmnopqrst", 1, 1, -1);
+    test("abcdefghij", 9, 0, "abcdefghijklmnopqrst", 1, 9, -9);
+    test("abcdefghij", 9, 0, "abcdefghijklmnopqrst", 1, 18, -18);
+    test("abcdefghij", 9, 0, "abcdefghijklmnopqrst", 1, 19, -19);
+    test("abcdefghij", 9, 0, "abcdefghijklmnopqrst", 1, 20, -19);
+    test("abcdefghij", 9, 0, "abcdefghijklmnopqrst", 10, 0, 0);
+    test("abcdefghij", 9, 0, "abcdefghijklmnopqrst", 10, 1, -1);
+    test("abcdefghij", 9, 0, "abcdefghijklmnopqrst", 10, 5, -5);
+    test("abcdefghij", 9, 0, "abcdefghijklmnopqrst", 10, 9, -9);
+    test("abcdefghij", 9, 0, "abcdefghijklmnopqrst", 10, 10, -10);
+    test("abcdefghij", 9, 0, "abcdefghijklmnopqrst", 10, 11, -10);
+    test("abcdefghij", 9, 0, "abcdefghijklmnopqrst", 19, 0, 0);
+    test("abcdefghij", 9, 0, "abcdefghijklmnopqrst", 19, 1, -1);
+    test("abcdefghij", 9, 0, "abcdefghijklmnopqrst", 19, 2, -1);
+    test("abcdefghij", 9, 0, "abcdefghijklmnopqrst", 20, 0, 0);
+    test("abcdefghij", 9, 0, "abcdefghijklmnopqrst", 20, 1, 0);
+    test("abcdefghij", 9, 0, "abcdefghijklmnopqrst", 21, 0, 0);
+    test("abcdefghij", 9, 1, "", 0, 0, 1);
+    test("abcdefghij", 9, 1, "", 0, 1, 1);
+    test("abcdefghij", 9, 1, "", 1, 0, 0);
+    test("abcdefghij", 9, 1, "abcde", 0, 0, 1);
+    test("abcdefghij", 9, 1, "abcde", 0, 1, 9);
+    test("abcdefghij", 9, 1, "abcde", 0, 2, 9);
+    test("abcdefghij", 9, 1, "abcde", 0, 4, 9);
+    test("abcdefghij", 9, 1, "abcde", 0, 5, 9);
+    test("abcdefghij", 9, 1, "abcde", 0, 6, 9);
+    test("abcdefghij", 9, 1, "abcde", 1, 0, 1);
+    test("abcdefghij", 9, 1, "abcde", 1, 1, 8);
+    test("abcdefghij", 9, 1, "abcde", 1, 2, 8);
+    test("abcdefghij", 9, 1, "abcde", 1, 3, 8);
+    test("abcdefghij", 9, 1, "abcde", 1, 4, 8);
+    test("abcdefghij", 9, 1, "abcde", 1, 5, 8);
+    test("abcdefghij", 9, 1, "abcde", 2, 0, 1);
+    test("abcdefghij", 9, 1, "abcde", 2, 1, 7);
+    test("abcdefghij", 9, 1, "abcde", 2, 2, 7);
+    test("abcdefghij", 9, 1, "abcde", 2, 3, 7);
+    test("abcdefghij", 9, 1, "abcde", 2, 4, 7);
+    test("abcdefghij", 9, 1, "abcde", 4, 0, 1);
+    test("abcdefghij", 9, 1, "abcde", 4, 1, 5);
+    test("abcdefghij", 9, 1, "abcde", 4, 2, 5);
+    test("abcdefghij", 9, 1, "abcde", 5, 0, 1);
+    test("abcdefghij", 9, 1, "abcde", 5, 1, 1);
+    test("abcdefghij", 9, 1, "abcde", 6, 0, 0);
+    test("abcdefghij", 9, 1, "abcdefghij", 0, 0, 1);
+    test("abcdefghij", 9, 1, "abcdefghij", 0, 1, 9);
+    test("abcdefghij", 9, 1, "abcdefghij", 0, 5, 9);
+    test("abcdefghij", 9, 1, "abcdefghij", 0, 9, 9);
+    test("abcdefghij", 9, 1, "abcdefghij", 0, 10, 9);
+    test("abcdefghij", 9, 1, "abcdefghij", 0, 11, 9);
+    test("abcdefghij", 9, 1, "abcdefghij", 1, 0, 1);
+    test("abcdefghij", 9, 1, "abcdefghij", 1, 1, 8);
+    test("abcdefghij", 9, 1, "abcdefghij", 1, 4, 8);
+    test("abcdefghij", 9, 1, "abcdefghij", 1, 8, 8);
+    test("abcdefghij", 9, 1, "abcdefghij", 1, 9, 8);
+    test("abcdefghij", 9, 1, "abcdefghij", 1, 10, 8);
+    test("abcdefghij", 9, 1, "abcdefghij", 5, 0, 1);
+    test("abcdefghij", 9, 1, "abcdefghij", 5, 1, 4);
+    test("abcdefghij", 9, 1, "abcdefghij", 5, 2, 4);
+    test("abcdefghij", 9, 1, "abcdefghij", 5, 4, 4);
+    test("abcdefghij", 9, 1, "abcdefghij", 5, 5, 4);
+    test("abcdefghij", 9, 1, "abcdefghij", 5, 6, 4);
+    test("abcdefghij", 9, 1, "abcdefghij", 9, 0, 1);
+    test("abcdefghij", 9, 1, "abcdefghij", 9, 1, 0);
+    test("abcdefghij", 9, 1, "abcdefghij", 9, 2, 0);
+    test("abcdefghij", 9, 1, "abcdefghij", 10, 0, 1);
+    test("abcdefghij", 9, 1, "abcdefghij", 10, 1, 1);
+    test("abcdefghij", 9, 1, "abcdefghij", 11, 0, 0);
+    test("abcdefghij", 9, 1, "abcdefghijklmnopqrst", 0, 0, 1);
+    test("abcdefghij", 9, 1, "abcdefghijklmnopqrst", 0, 1, 9);
+    test("abcdefghij", 9, 1, "abcdefghijklmnopqrst", 0, 10, 9);
+    test("abcdefghij", 9, 1, "abcdefghijklmnopqrst", 0, 19, 9);
+    test("abcdefghij", 9, 1, "abcdefghijklmnopqrst", 0, 20, 9);
+    test("abcdefghij", 9, 1, "abcdefghijklmnopqrst", 0, 21, 9);
+    test("abcdefghij", 9, 1, "abcdefghijklmnopqrst", 1, 0, 1);
+    test("abcdefghij", 9, 1, "abcdefghijklmnopqrst", 1, 1, 8);
+    test("abcdefghij", 9, 1, "abcdefghijklmnopqrst", 1, 9, 8);
+    test("abcdefghij", 9, 1, "abcdefghijklmnopqrst", 1, 18, 8);
+    test("abcdefghij", 9, 1, "abcdefghijklmnopqrst", 1, 19, 8);
+    test("abcdefghij", 9, 1, "abcdefghijklmnopqrst", 1, 20, 8);
+    test("abcdefghij", 9, 1, "abcdefghijklmnopqrst", 10, 0, 1);
+    test("abcdefghij", 9, 1, "abcdefghijklmnopqrst", 10, 1, -1);
+    test("abcdefghij", 9, 1, "abcdefghijklmnopqrst", 10, 5, -1);
+    test("abcdefghij", 9, 1, "abcdefghijklmnopqrst", 10, 9, -1);
+    test("abcdefghij", 9, 1, "abcdefghijklmnopqrst", 10, 10, -1);
+    test("abcdefghij", 9, 1, "abcdefghijklmnopqrst", 10, 11, -1);
+    test("abcdefghij", 9, 1, "abcdefghijklmnopqrst", 19, 0, 1);
+    test("abcdefghij", 9, 1, "abcdefghijklmnopqrst", 19, 1, -10);
+}
+
+void test34()
+{
+    test("abcdefghij", 9, 1, "abcdefghijklmnopqrst", 19, 2, -10);
+    test("abcdefghij", 9, 1, "abcdefghijklmnopqrst", 20, 0, 1);
+    test("abcdefghij", 9, 1, "abcdefghijklmnopqrst", 20, 1, 1);
+    test("abcdefghij", 9, 1, "abcdefghijklmnopqrst", 21, 0, 0);
+    test("abcdefghij", 9, 2, "", 0, 0, 1);
+    test("abcdefghij", 9, 2, "", 0, 1, 1);
+    test("abcdefghij", 9, 2, "", 1, 0, 0);
+    test("abcdefghij", 9, 2, "abcde", 0, 0, 1);
+    test("abcdefghij", 9, 2, "abcde", 0, 1, 9);
+    test("abcdefghij", 9, 2, "abcde", 0, 2, 9);
+    test("abcdefghij", 9, 2, "abcde", 0, 4, 9);
+    test("abcdefghij", 9, 2, "abcde", 0, 5, 9);
+    test("abcdefghij", 9, 2, "abcde", 0, 6, 9);
+    test("abcdefghij", 9, 2, "abcde", 1, 0, 1);
+    test("abcdefghij", 9, 2, "abcde", 1, 1, 8);
+    test("abcdefghij", 9, 2, "abcde", 1, 2, 8);
+    test("abcdefghij", 9, 2, "abcde", 1, 3, 8);
+    test("abcdefghij", 9, 2, "abcde", 1, 4, 8);
+    test("abcdefghij", 9, 2, "abcde", 1, 5, 8);
+    test("abcdefghij", 9, 2, "abcde", 2, 0, 1);
+    test("abcdefghij", 9, 2, "abcde", 2, 1, 7);
+    test("abcdefghij", 9, 2, "abcde", 2, 2, 7);
+    test("abcdefghij", 9, 2, "abcde", 2, 3, 7);
+    test("abcdefghij", 9, 2, "abcde", 2, 4, 7);
+    test("abcdefghij", 9, 2, "abcde", 4, 0, 1);
+    test("abcdefghij", 9, 2, "abcde", 4, 1, 5);
+    test("abcdefghij", 9, 2, "abcde", 4, 2, 5);
+    test("abcdefghij", 9, 2, "abcde", 5, 0, 1);
+    test("abcdefghij", 9, 2, "abcde", 5, 1, 1);
+    test("abcdefghij", 9, 2, "abcde", 6, 0, 0);
+    test("abcdefghij", 9, 2, "abcdefghij", 0, 0, 1);
+    test("abcdefghij", 9, 2, "abcdefghij", 0, 1, 9);
+    test("abcdefghij", 9, 2, "abcdefghij", 0, 5, 9);
+    test("abcdefghij", 9, 2, "abcdefghij", 0, 9, 9);
+    test("abcdefghij", 9, 2, "abcdefghij", 0, 10, 9);
+    test("abcdefghij", 9, 2, "abcdefghij", 0, 11, 9);
+    test("abcdefghij", 9, 2, "abcdefghij", 1, 0, 1);
+    test("abcdefghij", 9, 2, "abcdefghij", 1, 1, 8);
+    test("abcdefghij", 9, 2, "abcdefghij", 1, 4, 8);
+    test("abcdefghij", 9, 2, "abcdefghij", 1, 8, 8);
+    test("abcdefghij", 9, 2, "abcdefghij", 1, 9, 8);
+    test("abcdefghij", 9, 2, "abcdefghij", 1, 10, 8);
+    test("abcdefghij", 9, 2, "abcdefghij", 5, 0, 1);
+    test("abcdefghij", 9, 2, "abcdefghij", 5, 1, 4);
+    test("abcdefghij", 9, 2, "abcdefghij", 5, 2, 4);
+    test("abcdefghij", 9, 2, "abcdefghij", 5, 4, 4);
+    test("abcdefghij", 9, 2, "abcdefghij", 5, 5, 4);
+    test("abcdefghij", 9, 2, "abcdefghij", 5, 6, 4);
+    test("abcdefghij", 9, 2, "abcdefghij", 9, 0, 1);
+    test("abcdefghij", 9, 2, "abcdefghij", 9, 1, 0);
+    test("abcdefghij", 9, 2, "abcdefghij", 9, 2, 0);
+    test("abcdefghij", 9, 2, "abcdefghij", 10, 0, 1);
+    test("abcdefghij", 9, 2, "abcdefghij", 10, 1, 1);
+    test("abcdefghij", 9, 2, "abcdefghij", 11, 0, 0);
+    test("abcdefghij", 9, 2, "abcdefghijklmnopqrst", 0, 0, 1);
+    test("abcdefghij", 9, 2, "abcdefghijklmnopqrst", 0, 1, 9);
+    test("abcdefghij", 9, 2, "abcdefghijklmnopqrst", 0, 10, 9);
+    test("abcdefghij", 9, 2, "abcdefghijklmnopqrst", 0, 19, 9);
+    test("abcdefghij", 9, 2, "abcdefghijklmnopqrst", 0, 20, 9);
+    test("abcdefghij", 9, 2, "abcdefghijklmnopqrst", 0, 21, 9);
+    test("abcdefghij", 9, 2, "abcdefghijklmnopqrst", 1, 0, 1);
+    test("abcdefghij", 9, 2, "abcdefghijklmnopqrst", 1, 1, 8);
+    test("abcdefghij", 9, 2, "abcdefghijklmnopqrst", 1, 9, 8);
+    test("abcdefghij", 9, 2, "abcdefghijklmnopqrst", 1, 18, 8);
+    test("abcdefghij", 9, 2, "abcdefghijklmnopqrst", 1, 19, 8);
+    test("abcdefghij", 9, 2, "abcdefghijklmnopqrst", 1, 20, 8);
+    test("abcdefghij", 9, 2, "abcdefghijklmnopqrst", 10, 0, 1);
+    test("abcdefghij", 9, 2, "abcdefghijklmnopqrst", 10, 1, -1);
+    test("abcdefghij", 9, 2, "abcdefghijklmnopqrst", 10, 5, -1);
+    test("abcdefghij", 9, 2, "abcdefghijklmnopqrst", 10, 9, -1);
+    test("abcdefghij", 9, 2, "abcdefghijklmnopqrst", 10, 10, -1);
+    test("abcdefghij", 9, 2, "abcdefghijklmnopqrst", 10, 11, -1);
+    test("abcdefghij", 9, 2, "abcdefghijklmnopqrst", 19, 0, 1);
+    test("abcdefghij", 9, 2, "abcdefghijklmnopqrst", 19, 1, -10);
+    test("abcdefghij", 9, 2, "abcdefghijklmnopqrst", 19, 2, -10);
+    test("abcdefghij", 9, 2, "abcdefghijklmnopqrst", 20, 0, 1);
+    test("abcdefghij", 9, 2, "abcdefghijklmnopqrst", 20, 1, 1);
+    test("abcdefghij", 9, 2, "abcdefghijklmnopqrst", 21, 0, 0);
+    test("abcdefghij", 10, 0, "", 0, 0, 0);
+    test("abcdefghij", 10, 0, "", 0, 1, 0);
+    test("abcdefghij", 10, 0, "", 1, 0, 0);
+    test("abcdefghij", 10, 0, "abcde", 0, 0, 0);
+    test("abcdefghij", 10, 0, "abcde", 0, 1, -1);
+    test("abcdefghij", 10, 0, "abcde", 0, 2, -2);
+    test("abcdefghij", 10, 0, "abcde", 0, 4, -4);
+    test("abcdefghij", 10, 0, "abcde", 0, 5, -5);
+    test("abcdefghij", 10, 0, "abcde", 0, 6, -5);
+    test("abcdefghij", 10, 0, "abcde", 1, 0, 0);
+    test("abcdefghij", 10, 0, "abcde", 1, 1, -1);
+    test("abcdefghij", 10, 0, "abcde", 1, 2, -2);
+    test("abcdefghij", 10, 0, "abcde", 1, 3, -3);
+    test("abcdefghij", 10, 0, "abcde", 1, 4, -4);
+    test("abcdefghij", 10, 0, "abcde", 1, 5, -4);
+    test("abcdefghij", 10, 0, "abcde", 2, 0, 0);
+    test("abcdefghij", 10, 0, "abcde", 2, 1, -1);
+    test("abcdefghij", 10, 0, "abcde", 2, 2, -2);
+    test("abcdefghij", 10, 0, "abcde", 2, 3, -3);
+    test("abcdefghij", 10, 0, "abcde", 2, 4, -3);
+    test("abcdefghij", 10, 0, "abcde", 4, 0, 0);
+    test("abcdefghij", 10, 0, "abcde", 4, 1, -1);
+}
+
+void test35()
+{
+    test("abcdefghij", 10, 0, "abcde", 4, 2, -1);
+    test("abcdefghij", 10, 0, "abcde", 5, 0, 0);
+    test("abcdefghij", 10, 0, "abcde", 5, 1, 0);
+    test("abcdefghij", 10, 0, "abcde", 6, 0, 0);
+    test("abcdefghij", 10, 0, "abcdefghij", 0, 0, 0);
+    test("abcdefghij", 10, 0, "abcdefghij", 0, 1, -1);
+    test("abcdefghij", 10, 0, "abcdefghij", 0, 5, -5);
+    test("abcdefghij", 10, 0, "abcdefghij", 0, 9, -9);
+    test("abcdefghij", 10, 0, "abcdefghij", 0, 10, -10);
+    test("abcdefghij", 10, 0, "abcdefghij", 0, 11, -10);
+    test("abcdefghij", 10, 0, "abcdefghij", 1, 0, 0);
+    test("abcdefghij", 10, 0, "abcdefghij", 1, 1, -1);
+    test("abcdefghij", 10, 0, "abcdefghij", 1, 4, -4);
+    test("abcdefghij", 10, 0, "abcdefghij", 1, 8, -8);
+    test("abcdefghij", 10, 0, "abcdefghij", 1, 9, -9);
+    test("abcdefghij", 10, 0, "abcdefghij", 1, 10, -9);
+    test("abcdefghij", 10, 0, "abcdefghij", 5, 0, 0);
+    test("abcdefghij", 10, 0, "abcdefghij", 5, 1, -1);
+    test("abcdefghij", 10, 0, "abcdefghij", 5, 2, -2);
+    test("abcdefghij", 10, 0, "abcdefghij", 5, 4, -4);
+    test("abcdefghij", 10, 0, "abcdefghij", 5, 5, -5);
+    test("abcdefghij", 10, 0, "abcdefghij", 5, 6, -5);
+    test("abcdefghij", 10, 0, "abcdefghij", 9, 0, 0);
+    test("abcdefghij", 10, 0, "abcdefghij", 9, 1, -1);
+    test("abcdefghij", 10, 0, "abcdefghij", 9, 2, -1);
+    test("abcdefghij", 10, 0, "abcdefghij", 10, 0, 0);
+    test("abcdefghij", 10, 0, "abcdefghij", 10, 1, 0);
+    test("abcdefghij", 10, 0, "abcdefghij", 11, 0, 0);
+    test("abcdefghij", 10, 0, "abcdefghijklmnopqrst", 0, 0, 0);
+    test("abcdefghij", 10, 0, "abcdefghijklmnopqrst", 0, 1, -1);
+    test("abcdefghij", 10, 0, "abcdefghijklmnopqrst", 0, 10, -10);
+    test("abcdefghij", 10, 0, "abcdefghijklmnopqrst", 0, 19, -19);
+    test("abcdefghij", 10, 0, "abcdefghijklmnopqrst", 0, 20, -20);
+    test("abcdefghij", 10, 0, "abcdefghijklmnopqrst", 0, 21, -20);
+    test("abcdefghij", 10, 0, "abcdefghijklmnopqrst", 1, 0, 0);
+    test("abcdefghij", 10, 0, "abcdefghijklmnopqrst", 1, 1, -1);
+    test("abcdefghij", 10, 0, "abcdefghijklmnopqrst", 1, 9, -9);
+    test("abcdefghij", 10, 0, "abcdefghijklmnopqrst", 1, 18, -18);
+    test("abcdefghij", 10, 0, "abcdefghijklmnopqrst", 1, 19, -19);
+    test("abcdefghij", 10, 0, "abcdefghijklmnopqrst", 1, 20, -19);
+    test("abcdefghij", 10, 0, "abcdefghijklmnopqrst", 10, 0, 0);
+    test("abcdefghij", 10, 0, "abcdefghijklmnopqrst", 10, 1, -1);
+    test("abcdefghij", 10, 0, "abcdefghijklmnopqrst", 10, 5, -5);
+    test("abcdefghij", 10, 0, "abcdefghijklmnopqrst", 10, 9, -9);
+    test("abcdefghij", 10, 0, "abcdefghijklmnopqrst", 10, 10, -10);
+    test("abcdefghij", 10, 0, "abcdefghijklmnopqrst", 10, 11, -10);
+    test("abcdefghij", 10, 0, "abcdefghijklmnopqrst", 19, 0, 0);
+    test("abcdefghij", 10, 0, "abcdefghijklmnopqrst", 19, 1, -1);
+    test("abcdefghij", 10, 0, "abcdefghijklmnopqrst", 19, 2, -1);
+    test("abcdefghij", 10, 0, "abcdefghijklmnopqrst", 20, 0, 0);
+    test("abcdefghij", 10, 0, "abcdefghijklmnopqrst", 20, 1, 0);
+    test("abcdefghij", 10, 0, "abcdefghijklmnopqrst", 21, 0, 0);
+    test("abcdefghij", 10, 1, "", 0, 0, 0);
+    test("abcdefghij", 10, 1, "", 0, 1, 0);
+    test("abcdefghij", 10, 1, "", 1, 0, 0);
+    test("abcdefghij", 10, 1, "abcde", 0, 0, 0);
+    test("abcdefghij", 10, 1, "abcde", 0, 1, -1);
+    test("abcdefghij", 10, 1, "abcde", 0, 2, -2);
+    test("abcdefghij", 10, 1, "abcde", 0, 4, -4);
+    test("abcdefghij", 10, 1, "abcde", 0, 5, -5);
+    test("abcdefghij", 10, 1, "abcde", 0, 6, -5);
+    test("abcdefghij", 10, 1, "abcde", 1, 0, 0);
+    test("abcdefghij", 10, 1, "abcde", 1, 1, -1);
+    test("abcdefghij", 10, 1, "abcde", 1, 2, -2);
+    test("abcdefghij", 10, 1, "abcde", 1, 3, -3);
+    test("abcdefghij", 10, 1, "abcde", 1, 4, -4);
+    test("abcdefghij", 10, 1, "abcde", 1, 5, -4);
+    test("abcdefghij", 10, 1, "abcde", 2, 0, 0);
+    test("abcdefghij", 10, 1, "abcde", 2, 1, -1);
+    test("abcdefghij", 10, 1, "abcde", 2, 2, -2);
+    test("abcdefghij", 10, 1, "abcde", 2, 3, -3);
+    test("abcdefghij", 10, 1, "abcde", 2, 4, -3);
+    test("abcdefghij", 10, 1, "abcde", 4, 0, 0);
+    test("abcdefghij", 10, 1, "abcde", 4, 1, -1);
+    test("abcdefghij", 10, 1, "abcde", 4, 2, -1);
+    test("abcdefghij", 10, 1, "abcde", 5, 0, 0);
+    test("abcdefghij", 10, 1, "abcde", 5, 1, 0);
+    test("abcdefghij", 10, 1, "abcde", 6, 0, 0);
+    test("abcdefghij", 10, 1, "abcdefghij", 0, 0, 0);
+    test("abcdefghij", 10, 1, "abcdefghij", 0, 1, -1);
+    test("abcdefghij", 10, 1, "abcdefghij", 0, 5, -5);
+    test("abcdefghij", 10, 1, "abcdefghij", 0, 9, -9);
+    test("abcdefghij", 10, 1, "abcdefghij", 0, 10, -10);
+    test("abcdefghij", 10, 1, "abcdefghij", 0, 11, -10);
+    test("abcdefghij", 10, 1, "abcdefghij", 1, 0, 0);
+    test("abcdefghij", 10, 1, "abcdefghij", 1, 1, -1);
+    test("abcdefghij", 10, 1, "abcdefghij", 1, 4, -4);
+    test("abcdefghij", 10, 1, "abcdefghij", 1, 8, -8);
+    test("abcdefghij", 10, 1, "abcdefghij", 1, 9, -9);
+    test("abcdefghij", 10, 1, "abcdefghij", 1, 10, -9);
+    test("abcdefghij", 10, 1, "abcdefghij", 5, 0, 0);
+    test("abcdefghij", 10, 1, "abcdefghij", 5, 1, -1);
+    test("abcdefghij", 10, 1, "abcdefghij", 5, 2, -2);
+    test("abcdefghij", 10, 1, "abcdefghij", 5, 4, -4);
+    test("abcdefghij", 10, 1, "abcdefghij", 5, 5, -5);
+    test("abcdefghij", 10, 1, "abcdefghij", 5, 6, -5);
+    test("abcdefghij", 10, 1, "abcdefghij", 9, 0, 0);
+    test("abcdefghij", 10, 1, "abcdefghij", 9, 1, -1);
+    test("abcdefghij", 10, 1, "abcdefghij", 9, 2, -1);
+    test("abcdefghij", 10, 1, "abcdefghij", 10, 0, 0);
+}
+
+void test36()
+{
+    test("abcdefghij", 10, 1, "abcdefghij", 10, 1, 0);
+    test("abcdefghij", 10, 1, "abcdefghij", 11, 0, 0);
+    test("abcdefghij", 10, 1, "abcdefghijklmnopqrst", 0, 0, 0);
+    test("abcdefghij", 10, 1, "abcdefghijklmnopqrst", 0, 1, -1);
+    test("abcdefghij", 10, 1, "abcdefghijklmnopqrst", 0, 10, -10);
+    test("abcdefghij", 10, 1, "abcdefghijklmnopqrst", 0, 19, -19);
+    test("abcdefghij", 10, 1, "abcdefghijklmnopqrst", 0, 20, -20);
+    test("abcdefghij", 10, 1, "abcdefghijklmnopqrst", 0, 21, -20);
+    test("abcdefghij", 10, 1, "abcdefghijklmnopqrst", 1, 0, 0);
+    test("abcdefghij", 10, 1, "abcdefghijklmnopqrst", 1, 1, -1);
+    test("abcdefghij", 10, 1, "abcdefghijklmnopqrst", 1, 9, -9);
+    test("abcdefghij", 10, 1, "abcdefghijklmnopqrst", 1, 18, -18);
+    test("abcdefghij", 10, 1, "abcdefghijklmnopqrst", 1, 19, -19);
+    test("abcdefghij", 10, 1, "abcdefghijklmnopqrst", 1, 20, -19);
+    test("abcdefghij", 10, 1, "abcdefghijklmnopqrst", 10, 0, 0);
+    test("abcdefghij", 10, 1, "abcdefghijklmnopqrst", 10, 1, -1);
+    test("abcdefghij", 10, 1, "abcdefghijklmnopqrst", 10, 5, -5);
+    test("abcdefghij", 10, 1, "abcdefghijklmnopqrst", 10, 9, -9);
+    test("abcdefghij", 10, 1, "abcdefghijklmnopqrst", 10, 10, -10);
+    test("abcdefghij", 10, 1, "abcdefghijklmnopqrst", 10, 11, -10);
+    test("abcdefghij", 10, 1, "abcdefghijklmnopqrst", 19, 0, 0);
+    test("abcdefghij", 10, 1, "abcdefghijklmnopqrst", 19, 1, -1);
+    test("abcdefghij", 10, 1, "abcdefghijklmnopqrst", 19, 2, -1);
+    test("abcdefghij", 10, 1, "abcdefghijklmnopqrst", 20, 0, 0);
+    test("abcdefghij", 10, 1, "abcdefghijklmnopqrst", 20, 1, 0);
+    test("abcdefghij", 10, 1, "abcdefghijklmnopqrst", 21, 0, 0);
+    test("abcdefghij", 11, 0, "", 0, 0, 0);
+    test("abcdefghij", 11, 0, "", 0, 1, 0);
+    test("abcdefghij", 11, 0, "", 1, 0, 0);
+    test("abcdefghij", 11, 0, "abcde", 0, 0, 0);
+    test("abcdefghij", 11, 0, "abcde", 0, 1, 0);
+    test("abcdefghij", 11, 0, "abcde", 0, 2, 0);
+    test("abcdefghij", 11, 0, "abcde", 0, 4, 0);
+    test("abcdefghij", 11, 0, "abcde", 0, 5, 0);
+    test("abcdefghij", 11, 0, "abcde", 0, 6, 0);
+    test("abcdefghij", 11, 0, "abcde", 1, 0, 0);
+    test("abcdefghij", 11, 0, "abcde", 1, 1, 0);
+    test("abcdefghij", 11, 0, "abcde", 1, 2, 0);
+    test("abcdefghij", 11, 0, "abcde", 1, 3, 0);
+    test("abcdefghij", 11, 0, "abcde", 1, 4, 0);
+    test("abcdefghij", 11, 0, "abcde", 1, 5, 0);
+    test("abcdefghij", 11, 0, "abcde", 2, 0, 0);
+    test("abcdefghij", 11, 0, "abcde", 2, 1, 0);
+    test("abcdefghij", 11, 0, "abcde", 2, 2, 0);
+    test("abcdefghij", 11, 0, "abcde", 2, 3, 0);
+    test("abcdefghij", 11, 0, "abcde", 2, 4, 0);
+    test("abcdefghij", 11, 0, "abcde", 4, 0, 0);
+    test("abcdefghij", 11, 0, "abcde", 4, 1, 0);
+    test("abcdefghij", 11, 0, "abcde", 4, 2, 0);
+    test("abcdefghij", 11, 0, "abcde", 5, 0, 0);
+    test("abcdefghij", 11, 0, "abcde", 5, 1, 0);
+    test("abcdefghij", 11, 0, "abcde", 6, 0, 0);
+    test("abcdefghij", 11, 0, "abcdefghij", 0, 0, 0);
+    test("abcdefghij", 11, 0, "abcdefghij", 0, 1, 0);
+    test("abcdefghij", 11, 0, "abcdefghij", 0, 5, 0);
+    test("abcdefghij", 11, 0, "abcdefghij", 0, 9, 0);
+    test("abcdefghij", 11, 0, "abcdefghij", 0, 10, 0);
+    test("abcdefghij", 11, 0, "abcdefghij", 0, 11, 0);
+    test("abcdefghij", 11, 0, "abcdefghij", 1, 0, 0);
+    test("abcdefghij", 11, 0, "abcdefghij", 1, 1, 0);
+    test("abcdefghij", 11, 0, "abcdefghij", 1, 4, 0);
+    test("abcdefghij", 11, 0, "abcdefghij", 1, 8, 0);
+    test("abcdefghij", 11, 0, "abcdefghij", 1, 9, 0);
+    test("abcdefghij", 11, 0, "abcdefghij", 1, 10, 0);
+    test("abcdefghij", 11, 0, "abcdefghij", 5, 0, 0);
+    test("abcdefghij", 11, 0, "abcdefghij", 5, 1, 0);
+    test("abcdefghij", 11, 0, "abcdefghij", 5, 2, 0);
+    test("abcdefghij", 11, 0, "abcdefghij", 5, 4, 0);
+    test("abcdefghij", 11, 0, "abcdefghij", 5, 5, 0);
+    test("abcdefghij", 11, 0, "abcdefghij", 5, 6, 0);
+    test("abcdefghij", 11, 0, "abcdefghij", 9, 0, 0);
+    test("abcdefghij", 11, 0, "abcdefghij", 9, 1, 0);
+    test("abcdefghij", 11, 0, "abcdefghij", 9, 2, 0);
+    test("abcdefghij", 11, 0, "abcdefghij", 10, 0, 0);
+    test("abcdefghij", 11, 0, "abcdefghij", 10, 1, 0);
+    test("abcdefghij", 11, 0, "abcdefghij", 11, 0, 0);
+    test("abcdefghij", 11, 0, "abcdefghijklmnopqrst", 0, 0, 0);
+    test("abcdefghij", 11, 0, "abcdefghijklmnopqrst", 0, 1, 0);
+    test("abcdefghij", 11, 0, "abcdefghijklmnopqrst", 0, 10, 0);
+    test("abcdefghij", 11, 0, "abcdefghijklmnopqrst", 0, 19, 0);
+    test("abcdefghij", 11, 0, "abcdefghijklmnopqrst", 0, 20, 0);
+    test("abcdefghij", 11, 0, "abcdefghijklmnopqrst", 0, 21, 0);
+    test("abcdefghij", 11, 0, "abcdefghijklmnopqrst", 1, 0, 0);
+    test("abcdefghij", 11, 0, "abcdefghijklmnopqrst", 1, 1, 0);
+    test("abcdefghij", 11, 0, "abcdefghijklmnopqrst", 1, 9, 0);
+    test("abcdefghij", 11, 0, "abcdefghijklmnopqrst", 1, 18, 0);
+    test("abcdefghij", 11, 0, "abcdefghijklmnopqrst", 1, 19, 0);
+    test("abcdefghij", 11, 0, "abcdefghijklmnopqrst", 1, 20, 0);
+    test("abcdefghij", 11, 0, "abcdefghijklmnopqrst", 10, 0, 0);
+    test("abcdefghij", 11, 0, "abcdefghijklmnopqrst", 10, 1, 0);
+    test("abcdefghij", 11, 0, "abcdefghijklmnopqrst", 10, 5, 0);
+    test("abcdefghij", 11, 0, "abcdefghijklmnopqrst", 10, 9, 0);
+    test("abcdefghij", 11, 0, "abcdefghijklmnopqrst", 10, 10, 0);
+    test("abcdefghij", 11, 0, "abcdefghijklmnopqrst", 10, 11, 0);
+    test("abcdefghij", 11, 0, "abcdefghijklmnopqrst", 19, 0, 0);
+    test("abcdefghij", 11, 0, "abcdefghijklmnopqrst", 19, 1, 0);
+    test("abcdefghij", 11, 0, "abcdefghijklmnopqrst", 19, 2, 0);
+    test("abcdefghij", 11, 0, "abcdefghijklmnopqrst", 20, 0, 0);
+    test("abcdefghij", 11, 0, "abcdefghijklmnopqrst", 20, 1, 0);
+    test("abcdefghij", 11, 0, "abcdefghijklmnopqrst", 21, 0, 0);
+}
+
+void test37()
+{
+    test("abcdefghijklmnopqrst", 0, 0, "", 0, 0, 0);
+    test("abcdefghijklmnopqrst", 0, 0, "", 0, 1, 0);
+    test("abcdefghijklmnopqrst", 0, 0, "", 1, 0, 0);
+    test("abcdefghijklmnopqrst", 0, 0, "abcde", 0, 0, 0);
+    test("abcdefghijklmnopqrst", 0, 0, "abcde", 0, 1, -1);
+    test("abcdefghijklmnopqrst", 0, 0, "abcde", 0, 2, -2);
+    test("abcdefghijklmnopqrst", 0, 0, "abcde", 0, 4, -4);
+    test("abcdefghijklmnopqrst", 0, 0, "abcde", 0, 5, -5);
+    test("abcdefghijklmnopqrst", 0, 0, "abcde", 0, 6, -5);
+    test("abcdefghijklmnopqrst", 0, 0, "abcde", 1, 0, 0);
+    test("abcdefghijklmnopqrst", 0, 0, "abcde", 1, 1, -1);
+    test("abcdefghijklmnopqrst", 0, 0, "abcde", 1, 2, -2);
+    test("abcdefghijklmnopqrst", 0, 0, "abcde", 1, 3, -3);
+    test("abcdefghijklmnopqrst", 0, 0, "abcde", 1, 4, -4);
+    test("abcdefghijklmnopqrst", 0, 0, "abcde", 1, 5, -4);
+    test("abcdefghijklmnopqrst", 0, 0, "abcde", 2, 0, 0);
+    test("abcdefghijklmnopqrst", 0, 0, "abcde", 2, 1, -1);
+    test("abcdefghijklmnopqrst", 0, 0, "abcde", 2, 2, -2);
+    test("abcdefghijklmnopqrst", 0, 0, "abcde", 2, 3, -3);
+    test("abcdefghijklmnopqrst", 0, 0, "abcde", 2, 4, -3);
+    test("abcdefghijklmnopqrst", 0, 0, "abcde", 4, 0, 0);
+    test("abcdefghijklmnopqrst", 0, 0, "abcde", 4, 1, -1);
+    test("abcdefghijklmnopqrst", 0, 0, "abcde", 4, 2, -1);
+    test("abcdefghijklmnopqrst", 0, 0, "abcde", 5, 0, 0);
+    test("abcdefghijklmnopqrst", 0, 0, "abcde", 5, 1, 0);
+    test("abcdefghijklmnopqrst", 0, 0, "abcde", 6, 0, 0);
+    test("abcdefghijklmnopqrst", 0, 0, "abcdefghij", 0, 0, 0);
+    test("abcdefghijklmnopqrst", 0, 0, "abcdefghij", 0, 1, -1);
+    test("abcdefghijklmnopqrst", 0, 0, "abcdefghij", 0, 5, -5);
+    test("abcdefghijklmnopqrst", 0, 0, "abcdefghij", 0, 9, -9);
+    test("abcdefghijklmnopqrst", 0, 0, "abcdefghij", 0, 10, -10);
+    test("abcdefghijklmnopqrst", 0, 0, "abcdefghij", 0, 11, -10);
+    test("abcdefghijklmnopqrst", 0, 0, "abcdefghij", 1, 0, 0);
+    test("abcdefghijklmnopqrst", 0, 0, "abcdefghij", 1, 1, -1);
+    test("abcdefghijklmnopqrst", 0, 0, "abcdefghij", 1, 4, -4);
+    test("abcdefghijklmnopqrst", 0, 0, "abcdefghij", 1, 8, -8);
+    test("abcdefghijklmnopqrst", 0, 0, "abcdefghij", 1, 9, -9);
+    test("abcdefghijklmnopqrst", 0, 0, "abcdefghij", 1, 10, -9);
+    test("abcdefghijklmnopqrst", 0, 0, "abcdefghij", 5, 0, 0);
+    test("abcdefghijklmnopqrst", 0, 0, "abcdefghij", 5, 1, -1);
+    test("abcdefghijklmnopqrst", 0, 0, "abcdefghij", 5, 2, -2);
+    test("abcdefghijklmnopqrst", 0, 0, "abcdefghij", 5, 4, -4);
+    test("abcdefghijklmnopqrst", 0, 0, "abcdefghij", 5, 5, -5);
+    test("abcdefghijklmnopqrst", 0, 0, "abcdefghij", 5, 6, -5);
+    test("abcdefghijklmnopqrst", 0, 0, "abcdefghij", 9, 0, 0);
+    test("abcdefghijklmnopqrst", 0, 0, "abcdefghij", 9, 1, -1);
+    test("abcdefghijklmnopqrst", 0, 0, "abcdefghij", 9, 2, -1);
+    test("abcdefghijklmnopqrst", 0, 0, "abcdefghij", 10, 0, 0);
+    test("abcdefghijklmnopqrst", 0, 0, "abcdefghij", 10, 1, 0);
+    test("abcdefghijklmnopqrst", 0, 0, "abcdefghij", 11, 0, 0);
+    test("abcdefghijklmnopqrst", 0, 0, "abcdefghijklmnopqrst", 0, 0, 0);
+    test("abcdefghijklmnopqrst", 0, 0, "abcdefghijklmnopqrst", 0, 1, -1);
+    test("abcdefghijklmnopqrst", 0, 0, "abcdefghijklmnopqrst", 0, 10, -10);
+    test("abcdefghijklmnopqrst", 0, 0, "abcdefghijklmnopqrst", 0, 19, -19);
+    test("abcdefghijklmnopqrst", 0, 0, "abcdefghijklmnopqrst", 0, 20, -20);
+    test("abcdefghijklmnopqrst", 0, 0, "abcdefghijklmnopqrst", 0, 21, -20);
+    test("abcdefghijklmnopqrst", 0, 0, "abcdefghijklmnopqrst", 1, 0, 0);
+    test("abcdefghijklmnopqrst", 0, 0, "abcdefghijklmnopqrst", 1, 1, -1);
+    test("abcdefghijklmnopqrst", 0, 0, "abcdefghijklmnopqrst", 1, 9, -9);
+    test("abcdefghijklmnopqrst", 0, 0, "abcdefghijklmnopqrst", 1, 18, -18);
+    test("abcdefghijklmnopqrst", 0, 0, "abcdefghijklmnopqrst", 1, 19, -19);
+    test("abcdefghijklmnopqrst", 0, 0, "abcdefghijklmnopqrst", 1, 20, -19);
+    test("abcdefghijklmnopqrst", 0, 0, "abcdefghijklmnopqrst", 10, 0, 0);
+    test("abcdefghijklmnopqrst", 0, 0, "abcdefghijklmnopqrst", 10, 1, -1);
+    test("abcdefghijklmnopqrst", 0, 0, "abcdefghijklmnopqrst", 10, 5, -5);
+    test("abcdefghijklmnopqrst", 0, 0, "abcdefghijklmnopqrst", 10, 9, -9);
+    test("abcdefghijklmnopqrst", 0, 0, "abcdefghijklmnopqrst", 10, 10, -10);
+    test("abcdefghijklmnopqrst", 0, 0, "abcdefghijklmnopqrst", 10, 11, -10);
+    test("abcdefghijklmnopqrst", 0, 0, "abcdefghijklmnopqrst", 19, 0, 0);
+    test("abcdefghijklmnopqrst", 0, 0, "abcdefghijklmnopqrst", 19, 1, -1);
+    test("abcdefghijklmnopqrst", 0, 0, "abcdefghijklmnopqrst", 19, 2, -1);
+    test("abcdefghijklmnopqrst", 0, 0, "abcdefghijklmnopqrst", 20, 0, 0);
+    test("abcdefghijklmnopqrst", 0, 0, "abcdefghijklmnopqrst", 20, 1, 0);
+    test("abcdefghijklmnopqrst", 0, 0, "abcdefghijklmnopqrst", 21, 0, 0);
+    test("abcdefghijklmnopqrst", 0, 1, "", 0, 0, 1);
+    test("abcdefghijklmnopqrst", 0, 1, "", 0, 1, 1);
+    test("abcdefghijklmnopqrst", 0, 1, "", 1, 0, 0);
+    test("abcdefghijklmnopqrst", 0, 1, "abcde", 0, 0, 1);
+    test("abcdefghijklmnopqrst", 0, 1, "abcde", 0, 1, 0);
+    test("abcdefghijklmnopqrst", 0, 1, "abcde", 0, 2, -1);
+    test("abcdefghijklmnopqrst", 0, 1, "abcde", 0, 4, -3);
+    test("abcdefghijklmnopqrst", 0, 1, "abcde", 0, 5, -4);
+    test("abcdefghijklmnopqrst", 0, 1, "abcde", 0, 6, -4);
+    test("abcdefghijklmnopqrst", 0, 1, "abcde", 1, 0, 1);
+    test("abcdefghijklmnopqrst", 0, 1, "abcde", 1, 1, -1);
+    test("abcdefghijklmnopqrst", 0, 1, "abcde", 1, 2, -1);
+    test("abcdefghijklmnopqrst", 0, 1, "abcde", 1, 3, -1);
+    test("abcdefghijklmnopqrst", 0, 1, "abcde", 1, 4, -1);
+    test("abcdefghijklmnopqrst", 0, 1, "abcde", 1, 5, -1);
+    test("abcdefghijklmnopqrst", 0, 1, "abcde", 2, 0, 1);
+    test("abcdefghijklmnopqrst", 0, 1, "abcde", 2, 1, -2);
+    test("abcdefghijklmnopqrst", 0, 1, "abcde", 2, 2, -2);
+    test("abcdefghijklmnopqrst", 0, 1, "abcde", 2, 3, -2);
+    test("abcdefghijklmnopqrst", 0, 1, "abcde", 2, 4, -2);
+    test("abcdefghijklmnopqrst", 0, 1, "abcde", 4, 0, 1);
+    test("abcdefghijklmnopqrst", 0, 1, "abcde", 4, 1, -4);
+    test("abcdefghijklmnopqrst", 0, 1, "abcde", 4, 2, -4);
+    test("abcdefghijklmnopqrst", 0, 1, "abcde", 5, 0, 1);
+    test("abcdefghijklmnopqrst", 0, 1, "abcde", 5, 1, 1);
+    test("abcdefghijklmnopqrst", 0, 1, "abcde", 6, 0, 0);
+}
+
+void test38()
+{
+    test("abcdefghijklmnopqrst", 0, 1, "abcdefghij", 0, 0, 1);
+    test("abcdefghijklmnopqrst", 0, 1, "abcdefghij", 0, 1, 0);
+    test("abcdefghijklmnopqrst", 0, 1, "abcdefghij", 0, 5, -4);
+    test("abcdefghijklmnopqrst", 0, 1, "abcdefghij", 0, 9, -8);
+    test("abcdefghijklmnopqrst", 0, 1, "abcdefghij", 0, 10, -9);
+    test("abcdefghijklmnopqrst", 0, 1, "abcdefghij", 0, 11, -9);
+    test("abcdefghijklmnopqrst", 0, 1, "abcdefghij", 1, 0, 1);
+    test("abcdefghijklmnopqrst", 0, 1, "abcdefghij", 1, 1, -1);
+    test("abcdefghijklmnopqrst", 0, 1, "abcdefghij", 1, 4, -1);
+    test("abcdefghijklmnopqrst", 0, 1, "abcdefghij", 1, 8, -1);
+    test("abcdefghijklmnopqrst", 0, 1, "abcdefghij", 1, 9, -1);
+    test("abcdefghijklmnopqrst", 0, 1, "abcdefghij", 1, 10, -1);
+    test("abcdefghijklmnopqrst", 0, 1, "abcdefghij", 5, 0, 1);
+    test("abcdefghijklmnopqrst", 0, 1, "abcdefghij", 5, 1, -5);
+    test("abcdefghijklmnopqrst", 0, 1, "abcdefghij", 5, 2, -5);
+    test("abcdefghijklmnopqrst", 0, 1, "abcdefghij", 5, 4, -5);
+    test("abcdefghijklmnopqrst", 0, 1, "abcdefghij", 5, 5, -5);
+    test("abcdefghijklmnopqrst", 0, 1, "abcdefghij", 5, 6, -5);
+    test("abcdefghijklmnopqrst", 0, 1, "abcdefghij", 9, 0, 1);
+    test("abcdefghijklmnopqrst", 0, 1, "abcdefghij", 9, 1, -9);
+    test("abcdefghijklmnopqrst", 0, 1, "abcdefghij", 9, 2, -9);
+    test("abcdefghijklmnopqrst", 0, 1, "abcdefghij", 10, 0, 1);
+    test("abcdefghijklmnopqrst", 0, 1, "abcdefghij", 10, 1, 1);
+    test("abcdefghijklmnopqrst", 0, 1, "abcdefghij", 11, 0, 0);
+    test("abcdefghijklmnopqrst", 0, 1, "abcdefghijklmnopqrst", 0, 0, 1);
+    test("abcdefghijklmnopqrst", 0, 1, "abcdefghijklmnopqrst", 0, 1, 0);
+    test("abcdefghijklmnopqrst", 0, 1, "abcdefghijklmnopqrst", 0, 10, -9);
+    test("abcdefghijklmnopqrst", 0, 1, "abcdefghijklmnopqrst", 0, 19, -18);
+    test("abcdefghijklmnopqrst", 0, 1, "abcdefghijklmnopqrst", 0, 20, -19);
+    test("abcdefghijklmnopqrst", 0, 1, "abcdefghijklmnopqrst", 0, 21, -19);
+    test("abcdefghijklmnopqrst", 0, 1, "abcdefghijklmnopqrst", 1, 0, 1);
+    test("abcdefghijklmnopqrst", 0, 1, "abcdefghijklmnopqrst", 1, 1, -1);
+    test("abcdefghijklmnopqrst", 0, 1, "abcdefghijklmnopqrst", 1, 9, -1);
+    test("abcdefghijklmnopqrst", 0, 1, "abcdefghijklmnopqrst", 1, 18, -1);
+    test("abcdefghijklmnopqrst", 0, 1, "abcdefghijklmnopqrst", 1, 19, -1);
+    test("abcdefghijklmnopqrst", 0, 1, "abcdefghijklmnopqrst", 1, 20, -1);
+    test("abcdefghijklmnopqrst", 0, 1, "abcdefghijklmnopqrst", 10, 0, 1);
+    test("abcdefghijklmnopqrst", 0, 1, "abcdefghijklmnopqrst", 10, 1, -10);
+    test("abcdefghijklmnopqrst", 0, 1, "abcdefghijklmnopqrst", 10, 5, -10);
+    test("abcdefghijklmnopqrst", 0, 1, "abcdefghijklmnopqrst", 10, 9, -10);
+    test("abcdefghijklmnopqrst", 0, 1, "abcdefghijklmnopqrst", 10, 10, -10);
+    test("abcdefghijklmnopqrst", 0, 1, "abcdefghijklmnopqrst", 10, 11, -10);
+    test("abcdefghijklmnopqrst", 0, 1, "abcdefghijklmnopqrst", 19, 0, 1);
+    test("abcdefghijklmnopqrst", 0, 1, "abcdefghijklmnopqrst", 19, 1, -19);
+    test("abcdefghijklmnopqrst", 0, 1, "abcdefghijklmnopqrst", 19, 2, -19);
+    test("abcdefghijklmnopqrst", 0, 1, "abcdefghijklmnopqrst", 20, 0, 1);
+    test("abcdefghijklmnopqrst", 0, 1, "abcdefghijklmnopqrst", 20, 1, 1);
+    test("abcdefghijklmnopqrst", 0, 1, "abcdefghijklmnopqrst", 21, 0, 0);
+    test("abcdefghijklmnopqrst", 0, 10, "", 0, 0, 10);
+    test("abcdefghijklmnopqrst", 0, 10, "", 0, 1, 10);
+    test("abcdefghijklmnopqrst", 0, 10, "", 1, 0, 0);
+    test("abcdefghijklmnopqrst", 0, 10, "abcde", 0, 0, 10);
+    test("abcdefghijklmnopqrst", 0, 10, "abcde", 0, 1, 9);
+    test("abcdefghijklmnopqrst", 0, 10, "abcde", 0, 2, 8);
+    test("abcdefghijklmnopqrst", 0, 10, "abcde", 0, 4, 6);
+    test("abcdefghijklmnopqrst", 0, 10, "abcde", 0, 5, 5);
+    test("abcdefghijklmnopqrst", 0, 10, "abcde", 0, 6, 5);
+    test("abcdefghijklmnopqrst", 0, 10, "abcde", 1, 0, 10);
+    test("abcdefghijklmnopqrst", 0, 10, "abcde", 1, 1, -1);
+    test("abcdefghijklmnopqrst", 0, 10, "abcde", 1, 2, -1);
+    test("abcdefghijklmnopqrst", 0, 10, "abcde", 1, 3, -1);
+    test("abcdefghijklmnopqrst", 0, 10, "abcde", 1, 4, -1);
+    test("abcdefghijklmnopqrst", 0, 10, "abcde", 1, 5, -1);
+    test("abcdefghijklmnopqrst", 0, 10, "abcde", 2, 0, 10);
+    test("abcdefghijklmnopqrst", 0, 10, "abcde", 2, 1, -2);
+    test("abcdefghijklmnopqrst", 0, 10, "abcde", 2, 2, -2);
+    test("abcdefghijklmnopqrst", 0, 10, "abcde", 2, 3, -2);
+    test("abcdefghijklmnopqrst", 0, 10, "abcde", 2, 4, -2);
+    test("abcdefghijklmnopqrst", 0, 10, "abcde", 4, 0, 10);
+    test("abcdefghijklmnopqrst", 0, 10, "abcde", 4, 1, -4);
+    test("abcdefghijklmnopqrst", 0, 10, "abcde", 4, 2, -4);
+    test("abcdefghijklmnopqrst", 0, 10, "abcde", 5, 0, 10);
+    test("abcdefghijklmnopqrst", 0, 10, "abcde", 5, 1, 10);
+    test("abcdefghijklmnopqrst", 0, 10, "abcde", 6, 0, 0);
+    test("abcdefghijklmnopqrst", 0, 10, "abcdefghij", 0, 0, 10);
+    test("abcdefghijklmnopqrst", 0, 10, "abcdefghij", 0, 1, 9);
+    test("abcdefghijklmnopqrst", 0, 10, "abcdefghij", 0, 5, 5);
+    test("abcdefghijklmnopqrst", 0, 10, "abcdefghij", 0, 9, 1);
+    test("abcdefghijklmnopqrst", 0, 10, "abcdefghij", 0, 10, 0);
+    test("abcdefghijklmnopqrst", 0, 10, "abcdefghij", 0, 11, 0);
+    test("abcdefghijklmnopqrst", 0, 10, "abcdefghij", 1, 0, 10);
+    test("abcdefghijklmnopqrst", 0, 10, "abcdefghij", 1, 1, -1);
+    test("abcdefghijklmnopqrst", 0, 10, "abcdefghij", 1, 4, -1);
+    test("abcdefghijklmnopqrst", 0, 10, "abcdefghij", 1, 8, -1);
+    test("abcdefghijklmnopqrst", 0, 10, "abcdefghij", 1, 9, -1);
+    test("abcdefghijklmnopqrst", 0, 10, "abcdefghij", 1, 10, -1);
+    test("abcdefghijklmnopqrst", 0, 10, "abcdefghij", 5, 0, 10);
+    test("abcdefghijklmnopqrst", 0, 10, "abcdefghij", 5, 1, -5);
+    test("abcdefghijklmnopqrst", 0, 10, "abcdefghij", 5, 2, -5);
+    test("abcdefghijklmnopqrst", 0, 10, "abcdefghij", 5, 4, -5);
+    test("abcdefghijklmnopqrst", 0, 10, "abcdefghij", 5, 5, -5);
+    test("abcdefghijklmnopqrst", 0, 10, "abcdefghij", 5, 6, -5);
+    test("abcdefghijklmnopqrst", 0, 10, "abcdefghij", 9, 0, 10);
+    test("abcdefghijklmnopqrst", 0, 10, "abcdefghij", 9, 1, -9);
+    test("abcdefghijklmnopqrst", 0, 10, "abcdefghij", 9, 2, -9);
+    test("abcdefghijklmnopqrst", 0, 10, "abcdefghij", 10, 0, 10);
+    test("abcdefghijklmnopqrst", 0, 10, "abcdefghij", 10, 1, 10);
+    test("abcdefghijklmnopqrst", 0, 10, "abcdefghij", 11, 0, 0);
+    test("abcdefghijklmnopqrst", 0, 10, "abcdefghijklmnopqrst", 0, 0, 10);
+    test("abcdefghijklmnopqrst", 0, 10, "abcdefghijklmnopqrst", 0, 1, 9);
+}
+
+void test39()
+{
+    test("abcdefghijklmnopqrst", 0, 10, "abcdefghijklmnopqrst", 0, 10, 0);
+    test("abcdefghijklmnopqrst", 0, 10, "abcdefghijklmnopqrst", 0, 19, -9);
+    test("abcdefghijklmnopqrst", 0, 10, "abcdefghijklmnopqrst", 0, 20, -10);
+    test("abcdefghijklmnopqrst", 0, 10, "abcdefghijklmnopqrst", 0, 21, -10);
+    test("abcdefghijklmnopqrst", 0, 10, "abcdefghijklmnopqrst", 1, 0, 10);
+    test("abcdefghijklmnopqrst", 0, 10, "abcdefghijklmnopqrst", 1, 1, -1);
+    test("abcdefghijklmnopqrst", 0, 10, "abcdefghijklmnopqrst", 1, 9, -1);
+    test("abcdefghijklmnopqrst", 0, 10, "abcdefghijklmnopqrst", 1, 18, -1);
+    test("abcdefghijklmnopqrst", 0, 10, "abcdefghijklmnopqrst", 1, 19, -1);
+    test("abcdefghijklmnopqrst", 0, 10, "abcdefghijklmnopqrst", 1, 20, -1);
+    test("abcdefghijklmnopqrst", 0, 10, "abcdefghijklmnopqrst", 10, 0, 10);
+    test("abcdefghijklmnopqrst", 0, 10, "abcdefghijklmnopqrst", 10, 1, -10);
+    test("abcdefghijklmnopqrst", 0, 10, "abcdefghijklmnopqrst", 10, 5, -10);
+    test("abcdefghijklmnopqrst", 0, 10, "abcdefghijklmnopqrst", 10, 9, -10);
+    test("abcdefghijklmnopqrst", 0, 10, "abcdefghijklmnopqrst", 10, 10, -10);
+    test("abcdefghijklmnopqrst", 0, 10, "abcdefghijklmnopqrst", 10, 11, -10);
+    test("abcdefghijklmnopqrst", 0, 10, "abcdefghijklmnopqrst", 19, 0, 10);
+    test("abcdefghijklmnopqrst", 0, 10, "abcdefghijklmnopqrst", 19, 1, -19);
+    test("abcdefghijklmnopqrst", 0, 10, "abcdefghijklmnopqrst", 19, 2, -19);
+    test("abcdefghijklmnopqrst", 0, 10, "abcdefghijklmnopqrst", 20, 0, 10);
+    test("abcdefghijklmnopqrst", 0, 10, "abcdefghijklmnopqrst", 20, 1, 10);
+    test("abcdefghijklmnopqrst", 0, 10, "abcdefghijklmnopqrst", 21, 0, 0);
+    test("abcdefghijklmnopqrst", 0, 19, "", 0, 0, 19);
+    test("abcdefghijklmnopqrst", 0, 19, "", 0, 1, 19);
+    test("abcdefghijklmnopqrst", 0, 19, "", 1, 0, 0);
+    test("abcdefghijklmnopqrst", 0, 19, "abcde", 0, 0, 19);
+    test("abcdefghijklmnopqrst", 0, 19, "abcde", 0, 1, 18);
+    test("abcdefghijklmnopqrst", 0, 19, "abcde", 0, 2, 17);
+    test("abcdefghijklmnopqrst", 0, 19, "abcde", 0, 4, 15);
+    test("abcdefghijklmnopqrst", 0, 19, "abcde", 0, 5, 14);
+    test("abcdefghijklmnopqrst", 0, 19, "abcde", 0, 6, 14);
+    test("abcdefghijklmnopqrst", 0, 19, "abcde", 1, 0, 19);
+    test("abcdefghijklmnopqrst", 0, 19, "abcde", 1, 1, -1);
+    test("abcdefghijklmnopqrst", 0, 19, "abcde", 1, 2, -1);
+    test("abcdefghijklmnopqrst", 0, 19, "abcde", 1, 3, -1);
+    test("abcdefghijklmnopqrst", 0, 19, "abcde", 1, 4, -1);
+    test("abcdefghijklmnopqrst", 0, 19, "abcde", 1, 5, -1);
+    test("abcdefghijklmnopqrst", 0, 19, "abcde", 2, 0, 19);
+    test("abcdefghijklmnopqrst", 0, 19, "abcde", 2, 1, -2);
+    test("abcdefghijklmnopqrst", 0, 19, "abcde", 2, 2, -2);
+    test("abcdefghijklmnopqrst", 0, 19, "abcde", 2, 3, -2);
+    test("abcdefghijklmnopqrst", 0, 19, "abcde", 2, 4, -2);
+    test("abcdefghijklmnopqrst", 0, 19, "abcde", 4, 0, 19);
+    test("abcdefghijklmnopqrst", 0, 19, "abcde", 4, 1, -4);
+    test("abcdefghijklmnopqrst", 0, 19, "abcde", 4, 2, -4);
+    test("abcdefghijklmnopqrst", 0, 19, "abcde", 5, 0, 19);
+    test("abcdefghijklmnopqrst", 0, 19, "abcde", 5, 1, 19);
+    test("abcdefghijklmnopqrst", 0, 19, "abcde", 6, 0, 0);
+    test("abcdefghijklmnopqrst", 0, 19, "abcdefghij", 0, 0, 19);
+    test("abcdefghijklmnopqrst", 0, 19, "abcdefghij", 0, 1, 18);
+    test("abcdefghijklmnopqrst", 0, 19, "abcdefghij", 0, 5, 14);
+    test("abcdefghijklmnopqrst", 0, 19, "abcdefghij", 0, 9, 10);
+    test("abcdefghijklmnopqrst", 0, 19, "abcdefghij", 0, 10, 9);
+    test("abcdefghijklmnopqrst", 0, 19, "abcdefghij", 0, 11, 9);
+    test("abcdefghijklmnopqrst", 0, 19, "abcdefghij", 1, 0, 19);
+    test("abcdefghijklmnopqrst", 0, 19, "abcdefghij", 1, 1, -1);
+    test("abcdefghijklmnopqrst", 0, 19, "abcdefghij", 1, 4, -1);
+    test("abcdefghijklmnopqrst", 0, 19, "abcdefghij", 1, 8, -1);
+    test("abcdefghijklmnopqrst", 0, 19, "abcdefghij", 1, 9, -1);
+    test("abcdefghijklmnopqrst", 0, 19, "abcdefghij", 1, 10, -1);
+    test("abcdefghijklmnopqrst", 0, 19, "abcdefghij", 5, 0, 19);
+    test("abcdefghijklmnopqrst", 0, 19, "abcdefghij", 5, 1, -5);
+    test("abcdefghijklmnopqrst", 0, 19, "abcdefghij", 5, 2, -5);
+    test("abcdefghijklmnopqrst", 0, 19, "abcdefghij", 5, 4, -5);
+    test("abcdefghijklmnopqrst", 0, 19, "abcdefghij", 5, 5, -5);
+    test("abcdefghijklmnopqrst", 0, 19, "abcdefghij", 5, 6, -5);
+    test("abcdefghijklmnopqrst", 0, 19, "abcdefghij", 9, 0, 19);
+    test("abcdefghijklmnopqrst", 0, 19, "abcdefghij", 9, 1, -9);
+    test("abcdefghijklmnopqrst", 0, 19, "abcdefghij", 9, 2, -9);
+    test("abcdefghijklmnopqrst", 0, 19, "abcdefghij", 10, 0, 19);
+    test("abcdefghijklmnopqrst", 0, 19, "abcdefghij", 10, 1, 19);
+    test("abcdefghijklmnopqrst", 0, 19, "abcdefghij", 11, 0, 0);
+    test("abcdefghijklmnopqrst", 0, 19, "abcdefghijklmnopqrst", 0, 0, 19);
+    test("abcdefghijklmnopqrst", 0, 19, "abcdefghijklmnopqrst", 0, 1, 18);
+    test("abcdefghijklmnopqrst", 0, 19, "abcdefghijklmnopqrst", 0, 10, 9);
+    test("abcdefghijklmnopqrst", 0, 19, "abcdefghijklmnopqrst", 0, 19, 0);
+    test("abcdefghijklmnopqrst", 0, 19, "abcdefghijklmnopqrst", 0, 20, -1);
+    test("abcdefghijklmnopqrst", 0, 19, "abcdefghijklmnopqrst", 0, 21, -1);
+    test("abcdefghijklmnopqrst", 0, 19, "abcdefghijklmnopqrst", 1, 0, 19);
+    test("abcdefghijklmnopqrst", 0, 19, "abcdefghijklmnopqrst", 1, 1, -1);
+    test("abcdefghijklmnopqrst", 0, 19, "abcdefghijklmnopqrst", 1, 9, -1);
+    test("abcdefghijklmnopqrst", 0, 19, "abcdefghijklmnopqrst", 1, 18, -1);
+    test("abcdefghijklmnopqrst", 0, 19, "abcdefghijklmnopqrst", 1, 19, -1);
+    test("abcdefghijklmnopqrst", 0, 19, "abcdefghijklmnopqrst", 1, 20, -1);
+    test("abcdefghijklmnopqrst", 0, 19, "abcdefghijklmnopqrst", 10, 0, 19);
+    test("abcdefghijklmnopqrst", 0, 19, "abcdefghijklmnopqrst", 10, 1, -10);
+    test("abcdefghijklmnopqrst", 0, 19, "abcdefghijklmnopqrst", 10, 5, -10);
+    test("abcdefghijklmnopqrst", 0, 19, "abcdefghijklmnopqrst", 10, 9, -10);
+    test("abcdefghijklmnopqrst", 0, 19, "abcdefghijklmnopqrst", 10, 10, -10);
+    test("abcdefghijklmnopqrst", 0, 19, "abcdefghijklmnopqrst", 10, 11, -10);
+    test("abcdefghijklmnopqrst", 0, 19, "abcdefghijklmnopqrst", 19, 0, 19);
+    test("abcdefghijklmnopqrst", 0, 19, "abcdefghijklmnopqrst", 19, 1, -19);
+    test("abcdefghijklmnopqrst", 0, 19, "abcdefghijklmnopqrst", 19, 2, -19);
+    test("abcdefghijklmnopqrst", 0, 19, "abcdefghijklmnopqrst", 20, 0, 19);
+    test("abcdefghijklmnopqrst", 0, 19, "abcdefghijklmnopqrst", 20, 1, 19);
+    test("abcdefghijklmnopqrst", 0, 19, "abcdefghijklmnopqrst", 21, 0, 0);
+    test("abcdefghijklmnopqrst", 0, 20, "", 0, 0, 20);
+    test("abcdefghijklmnopqrst", 0, 20, "", 0, 1, 20);
+    test("abcdefghijklmnopqrst", 0, 20, "", 1, 0, 0);
+    test("abcdefghijklmnopqrst", 0, 20, "abcde", 0, 0, 20);
+}
+
+void test40()
+{
+    test("abcdefghijklmnopqrst", 0, 20, "abcde", 0, 1, 19);
+    test("abcdefghijklmnopqrst", 0, 20, "abcde", 0, 2, 18);
+    test("abcdefghijklmnopqrst", 0, 20, "abcde", 0, 4, 16);
+    test("abcdefghijklmnopqrst", 0, 20, "abcde", 0, 5, 15);
+    test("abcdefghijklmnopqrst", 0, 20, "abcde", 0, 6, 15);
+    test("abcdefghijklmnopqrst", 0, 20, "abcde", 1, 0, 20);
+    test("abcdefghijklmnopqrst", 0, 20, "abcde", 1, 1, -1);
+    test("abcdefghijklmnopqrst", 0, 20, "abcde", 1, 2, -1);
+    test("abcdefghijklmnopqrst", 0, 20, "abcde", 1, 3, -1);
+    test("abcdefghijklmnopqrst", 0, 20, "abcde", 1, 4, -1);
+    test("abcdefghijklmnopqrst", 0, 20, "abcde", 1, 5, -1);
+    test("abcdefghijklmnopqrst", 0, 20, "abcde", 2, 0, 20);
+    test("abcdefghijklmnopqrst", 0, 20, "abcde", 2, 1, -2);
+    test("abcdefghijklmnopqrst", 0, 20, "abcde", 2, 2, -2);
+    test("abcdefghijklmnopqrst", 0, 20, "abcde", 2, 3, -2);
+    test("abcdefghijklmnopqrst", 0, 20, "abcde", 2, 4, -2);
+    test("abcdefghijklmnopqrst", 0, 20, "abcde", 4, 0, 20);
+    test("abcdefghijklmnopqrst", 0, 20, "abcde", 4, 1, -4);
+    test("abcdefghijklmnopqrst", 0, 20, "abcde", 4, 2, -4);
+    test("abcdefghijklmnopqrst", 0, 20, "abcde", 5, 0, 20);
+    test("abcdefghijklmnopqrst", 0, 20, "abcde", 5, 1, 20);
+    test("abcdefghijklmnopqrst", 0, 20, "abcde", 6, 0, 0);
+    test("abcdefghijklmnopqrst", 0, 20, "abcdefghij", 0, 0, 20);
+    test("abcdefghijklmnopqrst", 0, 20, "abcdefghij", 0, 1, 19);
+    test("abcdefghijklmnopqrst", 0, 20, "abcdefghij", 0, 5, 15);
+    test("abcdefghijklmnopqrst", 0, 20, "abcdefghij", 0, 9, 11);
+    test("abcdefghijklmnopqrst", 0, 20, "abcdefghij", 0, 10, 10);
+    test("abcdefghijklmnopqrst", 0, 20, "abcdefghij", 0, 11, 10);
+    test("abcdefghijklmnopqrst", 0, 20, "abcdefghij", 1, 0, 20);
+    test("abcdefghijklmnopqrst", 0, 20, "abcdefghij", 1, 1, -1);
+    test("abcdefghijklmnopqrst", 0, 20, "abcdefghij", 1, 4, -1);
+    test("abcdefghijklmnopqrst", 0, 20, "abcdefghij", 1, 8, -1);
+    test("abcdefghijklmnopqrst", 0, 20, "abcdefghij", 1, 9, -1);
+    test("abcdefghijklmnopqrst", 0, 20, "abcdefghij", 1, 10, -1);
+    test("abcdefghijklmnopqrst", 0, 20, "abcdefghij", 5, 0, 20);
+    test("abcdefghijklmnopqrst", 0, 20, "abcdefghij", 5, 1, -5);
+    test("abcdefghijklmnopqrst", 0, 20, "abcdefghij", 5, 2, -5);
+    test("abcdefghijklmnopqrst", 0, 20, "abcdefghij", 5, 4, -5);
+    test("abcdefghijklmnopqrst", 0, 20, "abcdefghij", 5, 5, -5);
+    test("abcdefghijklmnopqrst", 0, 20, "abcdefghij", 5, 6, -5);
+    test("abcdefghijklmnopqrst", 0, 20, "abcdefghij", 9, 0, 20);
+    test("abcdefghijklmnopqrst", 0, 20, "abcdefghij", 9, 1, -9);
+    test("abcdefghijklmnopqrst", 0, 20, "abcdefghij", 9, 2, -9);
+    test("abcdefghijklmnopqrst", 0, 20, "abcdefghij", 10, 0, 20);
+    test("abcdefghijklmnopqrst", 0, 20, "abcdefghij", 10, 1, 20);
+    test("abcdefghijklmnopqrst", 0, 20, "abcdefghij", 11, 0, 0);
+    test("abcdefghijklmnopqrst", 0, 20, "abcdefghijklmnopqrst", 0, 0, 20);
+    test("abcdefghijklmnopqrst", 0, 20, "abcdefghijklmnopqrst", 0, 1, 19);
+    test("abcdefghijklmnopqrst", 0, 20, "abcdefghijklmnopqrst", 0, 10, 10);
+    test("abcdefghijklmnopqrst", 0, 20, "abcdefghijklmnopqrst", 0, 19, 1);
+    test("abcdefghijklmnopqrst", 0, 20, "abcdefghijklmnopqrst", 0, 20, 0);
+    test("abcdefghijklmnopqrst", 0, 20, "abcdefghijklmnopqrst", 0, 21, 0);
+    test("abcdefghijklmnopqrst", 0, 20, "abcdefghijklmnopqrst", 1, 0, 20);
+    test("abcdefghijklmnopqrst", 0, 20, "abcdefghijklmnopqrst", 1, 1, -1);
+    test("abcdefghijklmnopqrst", 0, 20, "abcdefghijklmnopqrst", 1, 9, -1);
+    test("abcdefghijklmnopqrst", 0, 20, "abcdefghijklmnopqrst", 1, 18, -1);
+    test("abcdefghijklmnopqrst", 0, 20, "abcdefghijklmnopqrst", 1, 19, -1);
+    test("abcdefghijklmnopqrst", 0, 20, "abcdefghijklmnopqrst", 1, 20, -1);
+    test("abcdefghijklmnopqrst", 0, 20, "abcdefghijklmnopqrst", 10, 0, 20);
+    test("abcdefghijklmnopqrst", 0, 20, "abcdefghijklmnopqrst", 10, 1, -10);
+    test("abcdefghijklmnopqrst", 0, 20, "abcdefghijklmnopqrst", 10, 5, -10);
+    test("abcdefghijklmnopqrst", 0, 20, "abcdefghijklmnopqrst", 10, 9, -10);
+    test("abcdefghijklmnopqrst", 0, 20, "abcdefghijklmnopqrst", 10, 10, -10);
+    test("abcdefghijklmnopqrst", 0, 20, "abcdefghijklmnopqrst", 10, 11, -10);
+    test("abcdefghijklmnopqrst", 0, 20, "abcdefghijklmnopqrst", 19, 0, 20);
+    test("abcdefghijklmnopqrst", 0, 20, "abcdefghijklmnopqrst", 19, 1, -19);
+    test("abcdefghijklmnopqrst", 0, 20, "abcdefghijklmnopqrst", 19, 2, -19);
+    test("abcdefghijklmnopqrst", 0, 20, "abcdefghijklmnopqrst", 20, 0, 20);
+    test("abcdefghijklmnopqrst", 0, 20, "abcdefghijklmnopqrst", 20, 1, 20);
+    test("abcdefghijklmnopqrst", 0, 20, "abcdefghijklmnopqrst", 21, 0, 0);
+    test("abcdefghijklmnopqrst", 0, 21, "", 0, 0, 20);
+    test("abcdefghijklmnopqrst", 0, 21, "", 0, 1, 20);
+    test("abcdefghijklmnopqrst", 0, 21, "", 1, 0, 0);
+    test("abcdefghijklmnopqrst", 0, 21, "abcde", 0, 0, 20);
+    test("abcdefghijklmnopqrst", 0, 21, "abcde", 0, 1, 19);
+    test("abcdefghijklmnopqrst", 0, 21, "abcde", 0, 2, 18);
+    test("abcdefghijklmnopqrst", 0, 21, "abcde", 0, 4, 16);
+    test("abcdefghijklmnopqrst", 0, 21, "abcde", 0, 5, 15);
+    test("abcdefghijklmnopqrst", 0, 21, "abcde", 0, 6, 15);
+    test("abcdefghijklmnopqrst", 0, 21, "abcde", 1, 0, 20);
+    test("abcdefghijklmnopqrst", 0, 21, "abcde", 1, 1, -1);
+    test("abcdefghijklmnopqrst", 0, 21, "abcde", 1, 2, -1);
+    test("abcdefghijklmnopqrst", 0, 21, "abcde", 1, 3, -1);
+    test("abcdefghijklmnopqrst", 0, 21, "abcde", 1, 4, -1);
+    test("abcdefghijklmnopqrst", 0, 21, "abcde", 1, 5, -1);
+    test("abcdefghijklmnopqrst", 0, 21, "abcde", 2, 0, 20);
+    test("abcdefghijklmnopqrst", 0, 21, "abcde", 2, 1, -2);
+    test("abcdefghijklmnopqrst", 0, 21, "abcde", 2, 2, -2);
+    test("abcdefghijklmnopqrst", 0, 21, "abcde", 2, 3, -2);
+    test("abcdefghijklmnopqrst", 0, 21, "abcde", 2, 4, -2);
+    test("abcdefghijklmnopqrst", 0, 21, "abcde", 4, 0, 20);
+    test("abcdefghijklmnopqrst", 0, 21, "abcde", 4, 1, -4);
+    test("abcdefghijklmnopqrst", 0, 21, "abcde", 4, 2, -4);
+    test("abcdefghijklmnopqrst", 0, 21, "abcde", 5, 0, 20);
+    test("abcdefghijklmnopqrst", 0, 21, "abcde", 5, 1, 20);
+    test("abcdefghijklmnopqrst", 0, 21, "abcde", 6, 0, 0);
+    test("abcdefghijklmnopqrst", 0, 21, "abcdefghij", 0, 0, 20);
+    test("abcdefghijklmnopqrst", 0, 21, "abcdefghij", 0, 1, 19);
+    test("abcdefghijklmnopqrst", 0, 21, "abcdefghij", 0, 5, 15);
+    test("abcdefghijklmnopqrst", 0, 21, "abcdefghij", 0, 9, 11);
+}
+
+void test41()
+{
+    test("abcdefghijklmnopqrst", 0, 21, "abcdefghij", 0, 10, 10);
+    test("abcdefghijklmnopqrst", 0, 21, "abcdefghij", 0, 11, 10);
+    test("abcdefghijklmnopqrst", 0, 21, "abcdefghij", 1, 0, 20);
+    test("abcdefghijklmnopqrst", 0, 21, "abcdefghij", 1, 1, -1);
+    test("abcdefghijklmnopqrst", 0, 21, "abcdefghij", 1, 4, -1);
+    test("abcdefghijklmnopqrst", 0, 21, "abcdefghij", 1, 8, -1);
+    test("abcdefghijklmnopqrst", 0, 21, "abcdefghij", 1, 9, -1);
+    test("abcdefghijklmnopqrst", 0, 21, "abcdefghij", 1, 10, -1);
+    test("abcdefghijklmnopqrst", 0, 21, "abcdefghij", 5, 0, 20);
+    test("abcdefghijklmnopqrst", 0, 21, "abcdefghij", 5, 1, -5);
+    test("abcdefghijklmnopqrst", 0, 21, "abcdefghij", 5, 2, -5);
+    test("abcdefghijklmnopqrst", 0, 21, "abcdefghij", 5, 4, -5);
+    test("abcdefghijklmnopqrst", 0, 21, "abcdefghij", 5, 5, -5);
+    test("abcdefghijklmnopqrst", 0, 21, "abcdefghij", 5, 6, -5);
+    test("abcdefghijklmnopqrst", 0, 21, "abcdefghij", 9, 0, 20);
+    test("abcdefghijklmnopqrst", 0, 21, "abcdefghij", 9, 1, -9);
+    test("abcdefghijklmnopqrst", 0, 21, "abcdefghij", 9, 2, -9);
+    test("abcdefghijklmnopqrst", 0, 21, "abcdefghij", 10, 0, 20);
+    test("abcdefghijklmnopqrst", 0, 21, "abcdefghij", 10, 1, 20);
+    test("abcdefghijklmnopqrst", 0, 21, "abcdefghij", 11, 0, 0);
+    test("abcdefghijklmnopqrst", 0, 21, "abcdefghijklmnopqrst", 0, 0, 20);
+    test("abcdefghijklmnopqrst", 0, 21, "abcdefghijklmnopqrst", 0, 1, 19);
+    test("abcdefghijklmnopqrst", 0, 21, "abcdefghijklmnopqrst", 0, 10, 10);
+    test("abcdefghijklmnopqrst", 0, 21, "abcdefghijklmnopqrst", 0, 19, 1);
+    test("abcdefghijklmnopqrst", 0, 21, "abcdefghijklmnopqrst", 0, 20, 0);
+    test("abcdefghijklmnopqrst", 0, 21, "abcdefghijklmnopqrst", 0, 21, 0);
+    test("abcdefghijklmnopqrst", 0, 21, "abcdefghijklmnopqrst", 1, 0, 20);
+    test("abcdefghijklmnopqrst", 0, 21, "abcdefghijklmnopqrst", 1, 1, -1);
+    test("abcdefghijklmnopqrst", 0, 21, "abcdefghijklmnopqrst", 1, 9, -1);
+    test("abcdefghijklmnopqrst", 0, 21, "abcdefghijklmnopqrst", 1, 18, -1);
+    test("abcdefghijklmnopqrst", 0, 21, "abcdefghijklmnopqrst", 1, 19, -1);
+    test("abcdefghijklmnopqrst", 0, 21, "abcdefghijklmnopqrst", 1, 20, -1);
+    test("abcdefghijklmnopqrst", 0, 21, "abcdefghijklmnopqrst", 10, 0, 20);
+    test("abcdefghijklmnopqrst", 0, 21, "abcdefghijklmnopqrst", 10, 1, -10);
+    test("abcdefghijklmnopqrst", 0, 21, "abcdefghijklmnopqrst", 10, 5, -10);
+    test("abcdefghijklmnopqrst", 0, 21, "abcdefghijklmnopqrst", 10, 9, -10);
+    test("abcdefghijklmnopqrst", 0, 21, "abcdefghijklmnopqrst", 10, 10, -10);
+    test("abcdefghijklmnopqrst", 0, 21, "abcdefghijklmnopqrst", 10, 11, -10);
+    test("abcdefghijklmnopqrst", 0, 21, "abcdefghijklmnopqrst", 19, 0, 20);
+    test("abcdefghijklmnopqrst", 0, 21, "abcdefghijklmnopqrst", 19, 1, -19);
+    test("abcdefghijklmnopqrst", 0, 21, "abcdefghijklmnopqrst", 19, 2, -19);
+    test("abcdefghijklmnopqrst", 0, 21, "abcdefghijklmnopqrst", 20, 0, 20);
+    test("abcdefghijklmnopqrst", 0, 21, "abcdefghijklmnopqrst", 20, 1, 20);
+    test("abcdefghijklmnopqrst", 0, 21, "abcdefghijklmnopqrst", 21, 0, 0);
+    test("abcdefghijklmnopqrst", 1, 0, "", 0, 0, 0);
+    test("abcdefghijklmnopqrst", 1, 0, "", 0, 1, 0);
+    test("abcdefghijklmnopqrst", 1, 0, "", 1, 0, 0);
+    test("abcdefghijklmnopqrst", 1, 0, "abcde", 0, 0, 0);
+    test("abcdefghijklmnopqrst", 1, 0, "abcde", 0, 1, -1);
+    test("abcdefghijklmnopqrst", 1, 0, "abcde", 0, 2, -2);
+    test("abcdefghijklmnopqrst", 1, 0, "abcde", 0, 4, -4);
+    test("abcdefghijklmnopqrst", 1, 0, "abcde", 0, 5, -5);
+    test("abcdefghijklmnopqrst", 1, 0, "abcde", 0, 6, -5);
+    test("abcdefghijklmnopqrst", 1, 0, "abcde", 1, 0, 0);
+    test("abcdefghijklmnopqrst", 1, 0, "abcde", 1, 1, -1);
+    test("abcdefghijklmnopqrst", 1, 0, "abcde", 1, 2, -2);
+    test("abcdefghijklmnopqrst", 1, 0, "abcde", 1, 3, -3);
+    test("abcdefghijklmnopqrst", 1, 0, "abcde", 1, 4, -4);
+    test("abcdefghijklmnopqrst", 1, 0, "abcde", 1, 5, -4);
+    test("abcdefghijklmnopqrst", 1, 0, "abcde", 2, 0, 0);
+    test("abcdefghijklmnopqrst", 1, 0, "abcde", 2, 1, -1);
+    test("abcdefghijklmnopqrst", 1, 0, "abcde", 2, 2, -2);
+    test("abcdefghijklmnopqrst", 1, 0, "abcde", 2, 3, -3);
+    test("abcdefghijklmnopqrst", 1, 0, "abcde", 2, 4, -3);
+    test("abcdefghijklmnopqrst", 1, 0, "abcde", 4, 0, 0);
+    test("abcdefghijklmnopqrst", 1, 0, "abcde", 4, 1, -1);
+    test("abcdefghijklmnopqrst", 1, 0, "abcde", 4, 2, -1);
+    test("abcdefghijklmnopqrst", 1, 0, "abcde", 5, 0, 0);
+    test("abcdefghijklmnopqrst", 1, 0, "abcde", 5, 1, 0);
+    test("abcdefghijklmnopqrst", 1, 0, "abcde", 6, 0, 0);
+    test("abcdefghijklmnopqrst", 1, 0, "abcdefghij", 0, 0, 0);
+    test("abcdefghijklmnopqrst", 1, 0, "abcdefghij", 0, 1, -1);
+    test("abcdefghijklmnopqrst", 1, 0, "abcdefghij", 0, 5, -5);
+    test("abcdefghijklmnopqrst", 1, 0, "abcdefghij", 0, 9, -9);
+    test("abcdefghijklmnopqrst", 1, 0, "abcdefghij", 0, 10, -10);
+    test("abcdefghijklmnopqrst", 1, 0, "abcdefghij", 0, 11, -10);
+    test("abcdefghijklmnopqrst", 1, 0, "abcdefghij", 1, 0, 0);
+    test("abcdefghijklmnopqrst", 1, 0, "abcdefghij", 1, 1, -1);
+    test("abcdefghijklmnopqrst", 1, 0, "abcdefghij", 1, 4, -4);
+    test("abcdefghijklmnopqrst", 1, 0, "abcdefghij", 1, 8, -8);
+    test("abcdefghijklmnopqrst", 1, 0, "abcdefghij", 1, 9, -9);
+    test("abcdefghijklmnopqrst", 1, 0, "abcdefghij", 1, 10, -9);
+    test("abcdefghijklmnopqrst", 1, 0, "abcdefghij", 5, 0, 0);
+    test("abcdefghijklmnopqrst", 1, 0, "abcdefghij", 5, 1, -1);
+    test("abcdefghijklmnopqrst", 1, 0, "abcdefghij", 5, 2, -2);
+    test("abcdefghijklmnopqrst", 1, 0, "abcdefghij", 5, 4, -4);
+    test("abcdefghijklmnopqrst", 1, 0, "abcdefghij", 5, 5, -5);
+    test("abcdefghijklmnopqrst", 1, 0, "abcdefghij", 5, 6, -5);
+    test("abcdefghijklmnopqrst", 1, 0, "abcdefghij", 9, 0, 0);
+    test("abcdefghijklmnopqrst", 1, 0, "abcdefghij", 9, 1, -1);
+    test("abcdefghijklmnopqrst", 1, 0, "abcdefghij", 9, 2, -1);
+    test("abcdefghijklmnopqrst", 1, 0, "abcdefghij", 10, 0, 0);
+    test("abcdefghijklmnopqrst", 1, 0, "abcdefghij", 10, 1, 0);
+    test("abcdefghijklmnopqrst", 1, 0, "abcdefghij", 11, 0, 0);
+    test("abcdefghijklmnopqrst", 1, 0, "abcdefghijklmnopqrst", 0, 0, 0);
+    test("abcdefghijklmnopqrst", 1, 0, "abcdefghijklmnopqrst", 0, 1, -1);
+    test("abcdefghijklmnopqrst", 1, 0, "abcdefghijklmnopqrst", 0, 10, -10);
+    test("abcdefghijklmnopqrst", 1, 0, "abcdefghijklmnopqrst", 0, 19, -19);
+    test("abcdefghijklmnopqrst", 1, 0, "abcdefghijklmnopqrst", 0, 20, -20);
+    test("abcdefghijklmnopqrst", 1, 0, "abcdefghijklmnopqrst", 0, 21, -20);
+}
+
+void test42()
+{
+    test("abcdefghijklmnopqrst", 1, 0, "abcdefghijklmnopqrst", 1, 0, 0);
+    test("abcdefghijklmnopqrst", 1, 0, "abcdefghijklmnopqrst", 1, 1, -1);
+    test("abcdefghijklmnopqrst", 1, 0, "abcdefghijklmnopqrst", 1, 9, -9);
+    test("abcdefghijklmnopqrst", 1, 0, "abcdefghijklmnopqrst", 1, 18, -18);
+    test("abcdefghijklmnopqrst", 1, 0, "abcdefghijklmnopqrst", 1, 19, -19);
+    test("abcdefghijklmnopqrst", 1, 0, "abcdefghijklmnopqrst", 1, 20, -19);
+    test("abcdefghijklmnopqrst", 1, 0, "abcdefghijklmnopqrst", 10, 0, 0);
+    test("abcdefghijklmnopqrst", 1, 0, "abcdefghijklmnopqrst", 10, 1, -1);
+    test("abcdefghijklmnopqrst", 1, 0, "abcdefghijklmnopqrst", 10, 5, -5);
+    test("abcdefghijklmnopqrst", 1, 0, "abcdefghijklmnopqrst", 10, 9, -9);
+    test("abcdefghijklmnopqrst", 1, 0, "abcdefghijklmnopqrst", 10, 10, -10);
+    test("abcdefghijklmnopqrst", 1, 0, "abcdefghijklmnopqrst", 10, 11, -10);
+    test("abcdefghijklmnopqrst", 1, 0, "abcdefghijklmnopqrst", 19, 0, 0);
+    test("abcdefghijklmnopqrst", 1, 0, "abcdefghijklmnopqrst", 19, 1, -1);
+    test("abcdefghijklmnopqrst", 1, 0, "abcdefghijklmnopqrst", 19, 2, -1);
+    test("abcdefghijklmnopqrst", 1, 0, "abcdefghijklmnopqrst", 20, 0, 0);
+    test("abcdefghijklmnopqrst", 1, 0, "abcdefghijklmnopqrst", 20, 1, 0);
+    test("abcdefghijklmnopqrst", 1, 0, "abcdefghijklmnopqrst", 21, 0, 0);
+    test("abcdefghijklmnopqrst", 1, 1, "", 0, 0, 1);
+    test("abcdefghijklmnopqrst", 1, 1, "", 0, 1, 1);
+    test("abcdefghijklmnopqrst", 1, 1, "", 1, 0, 0);
+    test("abcdefghijklmnopqrst", 1, 1, "abcde", 0, 0, 1);
+    test("abcdefghijklmnopqrst", 1, 1, "abcde", 0, 1, 1);
+    test("abcdefghijklmnopqrst", 1, 1, "abcde", 0, 2, 1);
+    test("abcdefghijklmnopqrst", 1, 1, "abcde", 0, 4, 1);
+    test("abcdefghijklmnopqrst", 1, 1, "abcde", 0, 5, 1);
+    test("abcdefghijklmnopqrst", 1, 1, "abcde", 0, 6, 1);
+    test("abcdefghijklmnopqrst", 1, 1, "abcde", 1, 0, 1);
+    test("abcdefghijklmnopqrst", 1, 1, "abcde", 1, 1, 0);
+    test("abcdefghijklmnopqrst", 1, 1, "abcde", 1, 2, -1);
+    test("abcdefghijklmnopqrst", 1, 1, "abcde", 1, 3, -2);
+    test("abcdefghijklmnopqrst", 1, 1, "abcde", 1, 4, -3);
+    test("abcdefghijklmnopqrst", 1, 1, "abcde", 1, 5, -3);
+    test("abcdefghijklmnopqrst", 1, 1, "abcde", 2, 0, 1);
+    test("abcdefghijklmnopqrst", 1, 1, "abcde", 2, 1, -1);
+    test("abcdefghijklmnopqrst", 1, 1, "abcde", 2, 2, -1);
+    test("abcdefghijklmnopqrst", 1, 1, "abcde", 2, 3, -1);
+    test("abcdefghijklmnopqrst", 1, 1, "abcde", 2, 4, -1);
+    test("abcdefghijklmnopqrst", 1, 1, "abcde", 4, 0, 1);
+    test("abcdefghijklmnopqrst", 1, 1, "abcde", 4, 1, -3);
+    test("abcdefghijklmnopqrst", 1, 1, "abcde", 4, 2, -3);
+    test("abcdefghijklmnopqrst", 1, 1, "abcde", 5, 0, 1);
+    test("abcdefghijklmnopqrst", 1, 1, "abcde", 5, 1, 1);
+    test("abcdefghijklmnopqrst", 1, 1, "abcde", 6, 0, 0);
+    test("abcdefghijklmnopqrst", 1, 1, "abcdefghij", 0, 0, 1);
+    test("abcdefghijklmnopqrst", 1, 1, "abcdefghij", 0, 1, 1);
+    test("abcdefghijklmnopqrst", 1, 1, "abcdefghij", 0, 5, 1);
+    test("abcdefghijklmnopqrst", 1, 1, "abcdefghij", 0, 9, 1);
+    test("abcdefghijklmnopqrst", 1, 1, "abcdefghij", 0, 10, 1);
+    test("abcdefghijklmnopqrst", 1, 1, "abcdefghij", 0, 11, 1);
+    test("abcdefghijklmnopqrst", 1, 1, "abcdefghij", 1, 0, 1);
+    test("abcdefghijklmnopqrst", 1, 1, "abcdefghij", 1, 1, 0);
+    test("abcdefghijklmnopqrst", 1, 1, "abcdefghij", 1, 4, -3);
+    test("abcdefghijklmnopqrst", 1, 1, "abcdefghij", 1, 8, -7);
+    test("abcdefghijklmnopqrst", 1, 1, "abcdefghij", 1, 9, -8);
+    test("abcdefghijklmnopqrst", 1, 1, "abcdefghij", 1, 10, -8);
+    test("abcdefghijklmnopqrst", 1, 1, "abcdefghij", 5, 0, 1);
+    test("abcdefghijklmnopqrst", 1, 1, "abcdefghij", 5, 1, -4);
+    test("abcdefghijklmnopqrst", 1, 1, "abcdefghij", 5, 2, -4);
+    test("abcdefghijklmnopqrst", 1, 1, "abcdefghij", 5, 4, -4);
+    test("abcdefghijklmnopqrst", 1, 1, "abcdefghij", 5, 5, -4);
+    test("abcdefghijklmnopqrst", 1, 1, "abcdefghij", 5, 6, -4);
+    test("abcdefghijklmnopqrst", 1, 1, "abcdefghij", 9, 0, 1);
+    test("abcdefghijklmnopqrst", 1, 1, "abcdefghij", 9, 1, -8);
+    test("abcdefghijklmnopqrst", 1, 1, "abcdefghij", 9, 2, -8);
+    test("abcdefghijklmnopqrst", 1, 1, "abcdefghij", 10, 0, 1);
+    test("abcdefghijklmnopqrst", 1, 1, "abcdefghij", 10, 1, 1);
+    test("abcdefghijklmnopqrst", 1, 1, "abcdefghij", 11, 0, 0);
+    test("abcdefghijklmnopqrst", 1, 1, "abcdefghijklmnopqrst", 0, 0, 1);
+    test("abcdefghijklmnopqrst", 1, 1, "abcdefghijklmnopqrst", 0, 1, 1);
+    test("abcdefghijklmnopqrst", 1, 1, "abcdefghijklmnopqrst", 0, 10, 1);
+    test("abcdefghijklmnopqrst", 1, 1, "abcdefghijklmnopqrst", 0, 19, 1);
+    test("abcdefghijklmnopqrst", 1, 1, "abcdefghijklmnopqrst", 0, 20, 1);
+    test("abcdefghijklmnopqrst", 1, 1, "abcdefghijklmnopqrst", 0, 21, 1);
+    test("abcdefghijklmnopqrst", 1, 1, "abcdefghijklmnopqrst", 1, 0, 1);
+    test("abcdefghijklmnopqrst", 1, 1, "abcdefghijklmnopqrst", 1, 1, 0);
+    test("abcdefghijklmnopqrst", 1, 1, "abcdefghijklmnopqrst", 1, 9, -8);
+    test("abcdefghijklmnopqrst", 1, 1, "abcdefghijklmnopqrst", 1, 18, -17);
+    test("abcdefghijklmnopqrst", 1, 1, "abcdefghijklmnopqrst", 1, 19, -18);
+    test("abcdefghijklmnopqrst", 1, 1, "abcdefghijklmnopqrst", 1, 20, -18);
+    test("abcdefghijklmnopqrst", 1, 1, "abcdefghijklmnopqrst", 10, 0, 1);
+    test("abcdefghijklmnopqrst", 1, 1, "abcdefghijklmnopqrst", 10, 1, -9);
+    test("abcdefghijklmnopqrst", 1, 1, "abcdefghijklmnopqrst", 10, 5, -9);
+    test("abcdefghijklmnopqrst", 1, 1, "abcdefghijklmnopqrst", 10, 9, -9);
+    test("abcdefghijklmnopqrst", 1, 1, "abcdefghijklmnopqrst", 10, 10, -9);
+    test("abcdefghijklmnopqrst", 1, 1, "abcdefghijklmnopqrst", 10, 11, -9);
+    test("abcdefghijklmnopqrst", 1, 1, "abcdefghijklmnopqrst", 19, 0, 1);
+    test("abcdefghijklmnopqrst", 1, 1, "abcdefghijklmnopqrst", 19, 1, -18);
+    test("abcdefghijklmnopqrst", 1, 1, "abcdefghijklmnopqrst", 19, 2, -18);
+    test("abcdefghijklmnopqrst", 1, 1, "abcdefghijklmnopqrst", 20, 0, 1);
+    test("abcdefghijklmnopqrst", 1, 1, "abcdefghijklmnopqrst", 20, 1, 1);
+    test("abcdefghijklmnopqrst", 1, 1, "abcdefghijklmnopqrst", 21, 0, 0);
+    test("abcdefghijklmnopqrst", 1, 9, "", 0, 0, 9);
+    test("abcdefghijklmnopqrst", 1, 9, "", 0, 1, 9);
+    test("abcdefghijklmnopqrst", 1, 9, "", 1, 0, 0);
+    test("abcdefghijklmnopqrst", 1, 9, "abcde", 0, 0, 9);
+    test("abcdefghijklmnopqrst", 1, 9, "abcde", 0, 1, 1);
+    test("abcdefghijklmnopqrst", 1, 9, "abcde", 0, 2, 1);
+    test("abcdefghijklmnopqrst", 1, 9, "abcde", 0, 4, 1);
+    test("abcdefghijklmnopqrst", 1, 9, "abcde", 0, 5, 1);
+}
+
+void test43()
+{
+    test("abcdefghijklmnopqrst", 1, 9, "abcde", 0, 6, 1);
+    test("abcdefghijklmnopqrst", 1, 9, "abcde", 1, 0, 9);
+    test("abcdefghijklmnopqrst", 1, 9, "abcde", 1, 1, 8);
+    test("abcdefghijklmnopqrst", 1, 9, "abcde", 1, 2, 7);
+    test("abcdefghijklmnopqrst", 1, 9, "abcde", 1, 3, 6);
+    test("abcdefghijklmnopqrst", 1, 9, "abcde", 1, 4, 5);
+    test("abcdefghijklmnopqrst", 1, 9, "abcde", 1, 5, 5);
+    test("abcdefghijklmnopqrst", 1, 9, "abcde", 2, 0, 9);
+    test("abcdefghijklmnopqrst", 1, 9, "abcde", 2, 1, -1);
+    test("abcdefghijklmnopqrst", 1, 9, "abcde", 2, 2, -1);
+    test("abcdefghijklmnopqrst", 1, 9, "abcde", 2, 3, -1);
+    test("abcdefghijklmnopqrst", 1, 9, "abcde", 2, 4, -1);
+    test("abcdefghijklmnopqrst", 1, 9, "abcde", 4, 0, 9);
+    test("abcdefghijklmnopqrst", 1, 9, "abcde", 4, 1, -3);
+    test("abcdefghijklmnopqrst", 1, 9, "abcde", 4, 2, -3);
+    test("abcdefghijklmnopqrst", 1, 9, "abcde", 5, 0, 9);
+    test("abcdefghijklmnopqrst", 1, 9, "abcde", 5, 1, 9);
+    test("abcdefghijklmnopqrst", 1, 9, "abcde", 6, 0, 0);
+    test("abcdefghijklmnopqrst", 1, 9, "abcdefghij", 0, 0, 9);
+    test("abcdefghijklmnopqrst", 1, 9, "abcdefghij", 0, 1, 1);
+    test("abcdefghijklmnopqrst", 1, 9, "abcdefghij", 0, 5, 1);
+    test("abcdefghijklmnopqrst", 1, 9, "abcdefghij", 0, 9, 1);
+    test("abcdefghijklmnopqrst", 1, 9, "abcdefghij", 0, 10, 1);
+    test("abcdefghijklmnopqrst", 1, 9, "abcdefghij", 0, 11, 1);
+    test("abcdefghijklmnopqrst", 1, 9, "abcdefghij", 1, 0, 9);
+    test("abcdefghijklmnopqrst", 1, 9, "abcdefghij", 1, 1, 8);
+    test("abcdefghijklmnopqrst", 1, 9, "abcdefghij", 1, 4, 5);
+    test("abcdefghijklmnopqrst", 1, 9, "abcdefghij", 1, 8, 1);
+    test("abcdefghijklmnopqrst", 1, 9, "abcdefghij", 1, 9, 0);
+    test("abcdefghijklmnopqrst", 1, 9, "abcdefghij", 1, 10, 0);
+    test("abcdefghijklmnopqrst", 1, 9, "abcdefghij", 5, 0, 9);
+    test("abcdefghijklmnopqrst", 1, 9, "abcdefghij", 5, 1, -4);
+    test("abcdefghijklmnopqrst", 1, 9, "abcdefghij", 5, 2, -4);
+    test("abcdefghijklmnopqrst", 1, 9, "abcdefghij", 5, 4, -4);
+    test("abcdefghijklmnopqrst", 1, 9, "abcdefghij", 5, 5, -4);
+    test("abcdefghijklmnopqrst", 1, 9, "abcdefghij", 5, 6, -4);
+    test("abcdefghijklmnopqrst", 1, 9, "abcdefghij", 9, 0, 9);
+    test("abcdefghijklmnopqrst", 1, 9, "abcdefghij", 9, 1, -8);
+    test("abcdefghijklmnopqrst", 1, 9, "abcdefghij", 9, 2, -8);
+    test("abcdefghijklmnopqrst", 1, 9, "abcdefghij", 10, 0, 9);
+    test("abcdefghijklmnopqrst", 1, 9, "abcdefghij", 10, 1, 9);
+    test("abcdefghijklmnopqrst", 1, 9, "abcdefghij", 11, 0, 0);
+    test("abcdefghijklmnopqrst", 1, 9, "abcdefghijklmnopqrst", 0, 0, 9);
+    test("abcdefghijklmnopqrst", 1, 9, "abcdefghijklmnopqrst", 0, 1, 1);
+    test("abcdefghijklmnopqrst", 1, 9, "abcdefghijklmnopqrst", 0, 10, 1);
+    test("abcdefghijklmnopqrst", 1, 9, "abcdefghijklmnopqrst", 0, 19, 1);
+    test("abcdefghijklmnopqrst", 1, 9, "abcdefghijklmnopqrst", 0, 20, 1);
+    test("abcdefghijklmnopqrst", 1, 9, "abcdefghijklmnopqrst", 0, 21, 1);
+    test("abcdefghijklmnopqrst", 1, 9, "abcdefghijklmnopqrst", 1, 0, 9);
+    test("abcdefghijklmnopqrst", 1, 9, "abcdefghijklmnopqrst", 1, 1, 8);
+    test("abcdefghijklmnopqrst", 1, 9, "abcdefghijklmnopqrst", 1, 9, 0);
+    test("abcdefghijklmnopqrst", 1, 9, "abcdefghijklmnopqrst", 1, 18, -9);
+    test("abcdefghijklmnopqrst", 1, 9, "abcdefghijklmnopqrst", 1, 19, -10);
+    test("abcdefghijklmnopqrst", 1, 9, "abcdefghijklmnopqrst", 1, 20, -10);
+    test("abcdefghijklmnopqrst", 1, 9, "abcdefghijklmnopqrst", 10, 0, 9);
+    test("abcdefghijklmnopqrst", 1, 9, "abcdefghijklmnopqrst", 10, 1, -9);
+    test("abcdefghijklmnopqrst", 1, 9, "abcdefghijklmnopqrst", 10, 5, -9);
+    test("abcdefghijklmnopqrst", 1, 9, "abcdefghijklmnopqrst", 10, 9, -9);
+    test("abcdefghijklmnopqrst", 1, 9, "abcdefghijklmnopqrst", 10, 10, -9);
+    test("abcdefghijklmnopqrst", 1, 9, "abcdefghijklmnopqrst", 10, 11, -9);
+    test("abcdefghijklmnopqrst", 1, 9, "abcdefghijklmnopqrst", 19, 0, 9);
+    test("abcdefghijklmnopqrst", 1, 9, "abcdefghijklmnopqrst", 19, 1, -18);
+    test("abcdefghijklmnopqrst", 1, 9, "abcdefghijklmnopqrst", 19, 2, -18);
+    test("abcdefghijklmnopqrst", 1, 9, "abcdefghijklmnopqrst", 20, 0, 9);
+    test("abcdefghijklmnopqrst", 1, 9, "abcdefghijklmnopqrst", 20, 1, 9);
+    test("abcdefghijklmnopqrst", 1, 9, "abcdefghijklmnopqrst", 21, 0, 0);
+    test("abcdefghijklmnopqrst", 1, 18, "", 0, 0, 18);
+    test("abcdefghijklmnopqrst", 1, 18, "", 0, 1, 18);
+    test("abcdefghijklmnopqrst", 1, 18, "", 1, 0, 0);
+    test("abcdefghijklmnopqrst", 1, 18, "abcde", 0, 0, 18);
+    test("abcdefghijklmnopqrst", 1, 18, "abcde", 0, 1, 1);
+    test("abcdefghijklmnopqrst", 1, 18, "abcde", 0, 2, 1);
+    test("abcdefghijklmnopqrst", 1, 18, "abcde", 0, 4, 1);
+    test("abcdefghijklmnopqrst", 1, 18, "abcde", 0, 5, 1);
+    test("abcdefghijklmnopqrst", 1, 18, "abcde", 0, 6, 1);
+    test("abcdefghijklmnopqrst", 1, 18, "abcde", 1, 0, 18);
+    test("abcdefghijklmnopqrst", 1, 18, "abcde", 1, 1, 17);
+    test("abcdefghijklmnopqrst", 1, 18, "abcde", 1, 2, 16);
+    test("abcdefghijklmnopqrst", 1, 18, "abcde", 1, 3, 15);
+    test("abcdefghijklmnopqrst", 1, 18, "abcde", 1, 4, 14);
+    test("abcdefghijklmnopqrst", 1, 18, "abcde", 1, 5, 14);
+    test("abcdefghijklmnopqrst", 1, 18, "abcde", 2, 0, 18);
+    test("abcdefghijklmnopqrst", 1, 18, "abcde", 2, 1, -1);
+    test("abcdefghijklmnopqrst", 1, 18, "abcde", 2, 2, -1);
+    test("abcdefghijklmnopqrst", 1, 18, "abcde", 2, 3, -1);
+    test("abcdefghijklmnopqrst", 1, 18, "abcde", 2, 4, -1);
+    test("abcdefghijklmnopqrst", 1, 18, "abcde", 4, 0, 18);
+    test("abcdefghijklmnopqrst", 1, 18, "abcde", 4, 1, -3);
+    test("abcdefghijklmnopqrst", 1, 18, "abcde", 4, 2, -3);
+    test("abcdefghijklmnopqrst", 1, 18, "abcde", 5, 0, 18);
+    test("abcdefghijklmnopqrst", 1, 18, "abcde", 5, 1, 18);
+    test("abcdefghijklmnopqrst", 1, 18, "abcde", 6, 0, 0);
+    test("abcdefghijklmnopqrst", 1, 18, "abcdefghij", 0, 0, 18);
+    test("abcdefghijklmnopqrst", 1, 18, "abcdefghij", 0, 1, 1);
+    test("abcdefghijklmnopqrst", 1, 18, "abcdefghij", 0, 5, 1);
+    test("abcdefghijklmnopqrst", 1, 18, "abcdefghij", 0, 9, 1);
+    test("abcdefghijklmnopqrst", 1, 18, "abcdefghij", 0, 10, 1);
+    test("abcdefghijklmnopqrst", 1, 18, "abcdefghij", 0, 11, 1);
+    test("abcdefghijklmnopqrst", 1, 18, "abcdefghij", 1, 0, 18);
+    test("abcdefghijklmnopqrst", 1, 18, "abcdefghij", 1, 1, 17);
+}
+
+void test44()
+{
+    test("abcdefghijklmnopqrst", 1, 18, "abcdefghij", 1, 4, 14);
+    test("abcdefghijklmnopqrst", 1, 18, "abcdefghij", 1, 8, 10);
+    test("abcdefghijklmnopqrst", 1, 18, "abcdefghij", 1, 9, 9);
+    test("abcdefghijklmnopqrst", 1, 18, "abcdefghij", 1, 10, 9);
+    test("abcdefghijklmnopqrst", 1, 18, "abcdefghij", 5, 0, 18);
+    test("abcdefghijklmnopqrst", 1, 18, "abcdefghij", 5, 1, -4);
+    test("abcdefghijklmnopqrst", 1, 18, "abcdefghij", 5, 2, -4);
+    test("abcdefghijklmnopqrst", 1, 18, "abcdefghij", 5, 4, -4);
+    test("abcdefghijklmnopqrst", 1, 18, "abcdefghij", 5, 5, -4);
+    test("abcdefghijklmnopqrst", 1, 18, "abcdefghij", 5, 6, -4);
+    test("abcdefghijklmnopqrst", 1, 18, "abcdefghij", 9, 0, 18);
+    test("abcdefghijklmnopqrst", 1, 18, "abcdefghij", 9, 1, -8);
+    test("abcdefghijklmnopqrst", 1, 18, "abcdefghij", 9, 2, -8);
+    test("abcdefghijklmnopqrst", 1, 18, "abcdefghij", 10, 0, 18);
+    test("abcdefghijklmnopqrst", 1, 18, "abcdefghij", 10, 1, 18);
+    test("abcdefghijklmnopqrst", 1, 18, "abcdefghij", 11, 0, 0);
+    test("abcdefghijklmnopqrst", 1, 18, "abcdefghijklmnopqrst", 0, 0, 18);
+    test("abcdefghijklmnopqrst", 1, 18, "abcdefghijklmnopqrst", 0, 1, 1);
+    test("abcdefghijklmnopqrst", 1, 18, "abcdefghijklmnopqrst", 0, 10, 1);
+    test("abcdefghijklmnopqrst", 1, 18, "abcdefghijklmnopqrst", 0, 19, 1);
+    test("abcdefghijklmnopqrst", 1, 18, "abcdefghijklmnopqrst", 0, 20, 1);
+    test("abcdefghijklmnopqrst", 1, 18, "abcdefghijklmnopqrst", 0, 21, 1);
+    test("abcdefghijklmnopqrst", 1, 18, "abcdefghijklmnopqrst", 1, 0, 18);
+    test("abcdefghijklmnopqrst", 1, 18, "abcdefghijklmnopqrst", 1, 1, 17);
+    test("abcdefghijklmnopqrst", 1, 18, "abcdefghijklmnopqrst", 1, 9, 9);
+    test("abcdefghijklmnopqrst", 1, 18, "abcdefghijklmnopqrst", 1, 18, 0);
+    test("abcdefghijklmnopqrst", 1, 18, "abcdefghijklmnopqrst", 1, 19, -1);
+    test("abcdefghijklmnopqrst", 1, 18, "abcdefghijklmnopqrst", 1, 20, -1);
+    test("abcdefghijklmnopqrst", 1, 18, "abcdefghijklmnopqrst", 10, 0, 18);
+    test("abcdefghijklmnopqrst", 1, 18, "abcdefghijklmnopqrst", 10, 1, -9);
+    test("abcdefghijklmnopqrst", 1, 18, "abcdefghijklmnopqrst", 10, 5, -9);
+    test("abcdefghijklmnopqrst", 1, 18, "abcdefghijklmnopqrst", 10, 9, -9);
+    test("abcdefghijklmnopqrst", 1, 18, "abcdefghijklmnopqrst", 10, 10, -9);
+    test("abcdefghijklmnopqrst", 1, 18, "abcdefghijklmnopqrst", 10, 11, -9);
+    test("abcdefghijklmnopqrst", 1, 18, "abcdefghijklmnopqrst", 19, 0, 18);
+    test("abcdefghijklmnopqrst", 1, 18, "abcdefghijklmnopqrst", 19, 1, -18);
+    test("abcdefghijklmnopqrst", 1, 18, "abcdefghijklmnopqrst", 19, 2, -18);
+    test("abcdefghijklmnopqrst", 1, 18, "abcdefghijklmnopqrst", 20, 0, 18);
+    test("abcdefghijklmnopqrst", 1, 18, "abcdefghijklmnopqrst", 20, 1, 18);
+    test("abcdefghijklmnopqrst", 1, 18, "abcdefghijklmnopqrst", 21, 0, 0);
+    test("abcdefghijklmnopqrst", 1, 19, "", 0, 0, 19);
+    test("abcdefghijklmnopqrst", 1, 19, "", 0, 1, 19);
+    test("abcdefghijklmnopqrst", 1, 19, "", 1, 0, 0);
+    test("abcdefghijklmnopqrst", 1, 19, "abcde", 0, 0, 19);
+    test("abcdefghijklmnopqrst", 1, 19, "abcde", 0, 1, 1);
+    test("abcdefghijklmnopqrst", 1, 19, "abcde", 0, 2, 1);
+    test("abcdefghijklmnopqrst", 1, 19, "abcde", 0, 4, 1);
+    test("abcdefghijklmnopqrst", 1, 19, "abcde", 0, 5, 1);
+    test("abcdefghijklmnopqrst", 1, 19, "abcde", 0, 6, 1);
+    test("abcdefghijklmnopqrst", 1, 19, "abcde", 1, 0, 19);
+    test("abcdefghijklmnopqrst", 1, 19, "abcde", 1, 1, 18);
+    test("abcdefghijklmnopqrst", 1, 19, "abcde", 1, 2, 17);
+    test("abcdefghijklmnopqrst", 1, 19, "abcde", 1, 3, 16);
+    test("abcdefghijklmnopqrst", 1, 19, "abcde", 1, 4, 15);
+    test("abcdefghijklmnopqrst", 1, 19, "abcde", 1, 5, 15);
+    test("abcdefghijklmnopqrst", 1, 19, "abcde", 2, 0, 19);
+    test("abcdefghijklmnopqrst", 1, 19, "abcde", 2, 1, -1);
+    test("abcdefghijklmnopqrst", 1, 19, "abcde", 2, 2, -1);
+    test("abcdefghijklmnopqrst", 1, 19, "abcde", 2, 3, -1);
+    test("abcdefghijklmnopqrst", 1, 19, "abcde", 2, 4, -1);
+    test("abcdefghijklmnopqrst", 1, 19, "abcde", 4, 0, 19);
+    test("abcdefghijklmnopqrst", 1, 19, "abcde", 4, 1, -3);
+    test("abcdefghijklmnopqrst", 1, 19, "abcde", 4, 2, -3);
+    test("abcdefghijklmnopqrst", 1, 19, "abcde", 5, 0, 19);
+    test("abcdefghijklmnopqrst", 1, 19, "abcde", 5, 1, 19);
+    test("abcdefghijklmnopqrst", 1, 19, "abcde", 6, 0, 0);
+    test("abcdefghijklmnopqrst", 1, 19, "abcdefghij", 0, 0, 19);
+    test("abcdefghijklmnopqrst", 1, 19, "abcdefghij", 0, 1, 1);
+    test("abcdefghijklmnopqrst", 1, 19, "abcdefghij", 0, 5, 1);
+    test("abcdefghijklmnopqrst", 1, 19, "abcdefghij", 0, 9, 1);
+    test("abcdefghijklmnopqrst", 1, 19, "abcdefghij", 0, 10, 1);
+    test("abcdefghijklmnopqrst", 1, 19, "abcdefghij", 0, 11, 1);
+    test("abcdefghijklmnopqrst", 1, 19, "abcdefghij", 1, 0, 19);
+    test("abcdefghijklmnopqrst", 1, 19, "abcdefghij", 1, 1, 18);
+    test("abcdefghijklmnopqrst", 1, 19, "abcdefghij", 1, 4, 15);
+    test("abcdefghijklmnopqrst", 1, 19, "abcdefghij", 1, 8, 11);
+    test("abcdefghijklmnopqrst", 1, 19, "abcdefghij", 1, 9, 10);
+    test("abcdefghijklmnopqrst", 1, 19, "abcdefghij", 1, 10, 10);
+    test("abcdefghijklmnopqrst", 1, 19, "abcdefghij", 5, 0, 19);
+    test("abcdefghijklmnopqrst", 1, 19, "abcdefghij", 5, 1, -4);
+    test("abcdefghijklmnopqrst", 1, 19, "abcdefghij", 5, 2, -4);
+    test("abcdefghijklmnopqrst", 1, 19, "abcdefghij", 5, 4, -4);
+    test("abcdefghijklmnopqrst", 1, 19, "abcdefghij", 5, 5, -4);
+    test("abcdefghijklmnopqrst", 1, 19, "abcdefghij", 5, 6, -4);
+    test("abcdefghijklmnopqrst", 1, 19, "abcdefghij", 9, 0, 19);
+    test("abcdefghijklmnopqrst", 1, 19, "abcdefghij", 9, 1, -8);
+    test("abcdefghijklmnopqrst", 1, 19, "abcdefghij", 9, 2, -8);
+    test("abcdefghijklmnopqrst", 1, 19, "abcdefghij", 10, 0, 19);
+    test("abcdefghijklmnopqrst", 1, 19, "abcdefghij", 10, 1, 19);
+    test("abcdefghijklmnopqrst", 1, 19, "abcdefghij", 11, 0, 0);
+    test("abcdefghijklmnopqrst", 1, 19, "abcdefghijklmnopqrst", 0, 0, 19);
+    test("abcdefghijklmnopqrst", 1, 19, "abcdefghijklmnopqrst", 0, 1, 1);
+    test("abcdefghijklmnopqrst", 1, 19, "abcdefghijklmnopqrst", 0, 10, 1);
+    test("abcdefghijklmnopqrst", 1, 19, "abcdefghijklmnopqrst", 0, 19, 1);
+    test("abcdefghijklmnopqrst", 1, 19, "abcdefghijklmnopqrst", 0, 20, 1);
+    test("abcdefghijklmnopqrst", 1, 19, "abcdefghijklmnopqrst", 0, 21, 1);
+    test("abcdefghijklmnopqrst", 1, 19, "abcdefghijklmnopqrst", 1, 0, 19);
+    test("abcdefghijklmnopqrst", 1, 19, "abcdefghijklmnopqrst", 1, 1, 18);
+    test("abcdefghijklmnopqrst", 1, 19, "abcdefghijklmnopqrst", 1, 9, 10);
+    test("abcdefghijklmnopqrst", 1, 19, "abcdefghijklmnopqrst", 1, 18, 1);
+}
+
+void test45()
+{
+    test("abcdefghijklmnopqrst", 1, 19, "abcdefghijklmnopqrst", 1, 19, 0);
+    test("abcdefghijklmnopqrst", 1, 19, "abcdefghijklmnopqrst", 1, 20, 0);
+    test("abcdefghijklmnopqrst", 1, 19, "abcdefghijklmnopqrst", 10, 0, 19);
+    test("abcdefghijklmnopqrst", 1, 19, "abcdefghijklmnopqrst", 10, 1, -9);
+    test("abcdefghijklmnopqrst", 1, 19, "abcdefghijklmnopqrst", 10, 5, -9);
+    test("abcdefghijklmnopqrst", 1, 19, "abcdefghijklmnopqrst", 10, 9, -9);
+    test("abcdefghijklmnopqrst", 1, 19, "abcdefghijklmnopqrst", 10, 10, -9);
+    test("abcdefghijklmnopqrst", 1, 19, "abcdefghijklmnopqrst", 10, 11, -9);
+    test("abcdefghijklmnopqrst", 1, 19, "abcdefghijklmnopqrst", 19, 0, 19);
+    test("abcdefghijklmnopqrst", 1, 19, "abcdefghijklmnopqrst", 19, 1, -18);
+    test("abcdefghijklmnopqrst", 1, 19, "abcdefghijklmnopqrst", 19, 2, -18);
+    test("abcdefghijklmnopqrst", 1, 19, "abcdefghijklmnopqrst", 20, 0, 19);
+    test("abcdefghijklmnopqrst", 1, 19, "abcdefghijklmnopqrst", 20, 1, 19);
+    test("abcdefghijklmnopqrst", 1, 19, "abcdefghijklmnopqrst", 21, 0, 0);
+    test("abcdefghijklmnopqrst", 1, 20, "", 0, 0, 19);
+    test("abcdefghijklmnopqrst", 1, 20, "", 0, 1, 19);
+    test("abcdefghijklmnopqrst", 1, 20, "", 1, 0, 0);
+    test("abcdefghijklmnopqrst", 1, 20, "abcde", 0, 0, 19);
+    test("abcdefghijklmnopqrst", 1, 20, "abcde", 0, 1, 1);
+    test("abcdefghijklmnopqrst", 1, 20, "abcde", 0, 2, 1);
+    test("abcdefghijklmnopqrst", 1, 20, "abcde", 0, 4, 1);
+    test("abcdefghijklmnopqrst", 1, 20, "abcde", 0, 5, 1);
+    test("abcdefghijklmnopqrst", 1, 20, "abcde", 0, 6, 1);
+    test("abcdefghijklmnopqrst", 1, 20, "abcde", 1, 0, 19);
+    test("abcdefghijklmnopqrst", 1, 20, "abcde", 1, 1, 18);
+    test("abcdefghijklmnopqrst", 1, 20, "abcde", 1, 2, 17);
+    test("abcdefghijklmnopqrst", 1, 20, "abcde", 1, 3, 16);
+    test("abcdefghijklmnopqrst", 1, 20, "abcde", 1, 4, 15);
+    test("abcdefghijklmnopqrst", 1, 20, "abcde", 1, 5, 15);
+    test("abcdefghijklmnopqrst", 1, 20, "abcde", 2, 0, 19);
+    test("abcdefghijklmnopqrst", 1, 20, "abcde", 2, 1, -1);
+    test("abcdefghijklmnopqrst", 1, 20, "abcde", 2, 2, -1);
+    test("abcdefghijklmnopqrst", 1, 20, "abcde", 2, 3, -1);
+    test("abcdefghijklmnopqrst", 1, 20, "abcde", 2, 4, -1);
+    test("abcdefghijklmnopqrst", 1, 20, "abcde", 4, 0, 19);
+    test("abcdefghijklmnopqrst", 1, 20, "abcde", 4, 1, -3);
+    test("abcdefghijklmnopqrst", 1, 20, "abcde", 4, 2, -3);
+    test("abcdefghijklmnopqrst", 1, 20, "abcde", 5, 0, 19);
+    test("abcdefghijklmnopqrst", 1, 20, "abcde", 5, 1, 19);
+    test("abcdefghijklmnopqrst", 1, 20, "abcde", 6, 0, 0);
+    test("abcdefghijklmnopqrst", 1, 20, "abcdefghij", 0, 0, 19);
+    test("abcdefghijklmnopqrst", 1, 20, "abcdefghij", 0, 1, 1);
+    test("abcdefghijklmnopqrst", 1, 20, "abcdefghij", 0, 5, 1);
+    test("abcdefghijklmnopqrst", 1, 20, "abcdefghij", 0, 9, 1);
+    test("abcdefghijklmnopqrst", 1, 20, "abcdefghij", 0, 10, 1);
+    test("abcdefghijklmnopqrst", 1, 20, "abcdefghij", 0, 11, 1);
+    test("abcdefghijklmnopqrst", 1, 20, "abcdefghij", 1, 0, 19);
+    test("abcdefghijklmnopqrst", 1, 20, "abcdefghij", 1, 1, 18);
+    test("abcdefghijklmnopqrst", 1, 20, "abcdefghij", 1, 4, 15);
+    test("abcdefghijklmnopqrst", 1, 20, "abcdefghij", 1, 8, 11);
+    test("abcdefghijklmnopqrst", 1, 20, "abcdefghij", 1, 9, 10);
+    test("abcdefghijklmnopqrst", 1, 20, "abcdefghij", 1, 10, 10);
+    test("abcdefghijklmnopqrst", 1, 20, "abcdefghij", 5, 0, 19);
+    test("abcdefghijklmnopqrst", 1, 20, "abcdefghij", 5, 1, -4);
+    test("abcdefghijklmnopqrst", 1, 20, "abcdefghij", 5, 2, -4);
+    test("abcdefghijklmnopqrst", 1, 20, "abcdefghij", 5, 4, -4);
+    test("abcdefghijklmnopqrst", 1, 20, "abcdefghij", 5, 5, -4);
+    test("abcdefghijklmnopqrst", 1, 20, "abcdefghij", 5, 6, -4);
+    test("abcdefghijklmnopqrst", 1, 20, "abcdefghij", 9, 0, 19);
+    test("abcdefghijklmnopqrst", 1, 20, "abcdefghij", 9, 1, -8);
+    test("abcdefghijklmnopqrst", 1, 20, "abcdefghij", 9, 2, -8);
+    test("abcdefghijklmnopqrst", 1, 20, "abcdefghij", 10, 0, 19);
+    test("abcdefghijklmnopqrst", 1, 20, "abcdefghij", 10, 1, 19);
+    test("abcdefghijklmnopqrst", 1, 20, "abcdefghij", 11, 0, 0);
+    test("abcdefghijklmnopqrst", 1, 20, "abcdefghijklmnopqrst", 0, 0, 19);
+    test("abcdefghijklmnopqrst", 1, 20, "abcdefghijklmnopqrst", 0, 1, 1);
+    test("abcdefghijklmnopqrst", 1, 20, "abcdefghijklmnopqrst", 0, 10, 1);
+    test("abcdefghijklmnopqrst", 1, 20, "abcdefghijklmnopqrst", 0, 19, 1);
+    test("abcdefghijklmnopqrst", 1, 20, "abcdefghijklmnopqrst", 0, 20, 1);
+    test("abcdefghijklmnopqrst", 1, 20, "abcdefghijklmnopqrst", 0, 21, 1);
+    test("abcdefghijklmnopqrst", 1, 20, "abcdefghijklmnopqrst", 1, 0, 19);
+    test("abcdefghijklmnopqrst", 1, 20, "abcdefghijklmnopqrst", 1, 1, 18);
+    test("abcdefghijklmnopqrst", 1, 20, "abcdefghijklmnopqrst", 1, 9, 10);
+    test("abcdefghijklmnopqrst", 1, 20, "abcdefghijklmnopqrst", 1, 18, 1);
+    test("abcdefghijklmnopqrst", 1, 20, "abcdefghijklmnopqrst", 1, 19, 0);
+    test("abcdefghijklmnopqrst", 1, 20, "abcdefghijklmnopqrst", 1, 20, 0);
+    test("abcdefghijklmnopqrst", 1, 20, "abcdefghijklmnopqrst", 10, 0, 19);
+    test("abcdefghijklmnopqrst", 1, 20, "abcdefghijklmnopqrst", 10, 1, -9);
+    test("abcdefghijklmnopqrst", 1, 20, "abcdefghijklmnopqrst", 10, 5, -9);
+    test("abcdefghijklmnopqrst", 1, 20, "abcdefghijklmnopqrst", 10, 9, -9);
+    test("abcdefghijklmnopqrst", 1, 20, "abcdefghijklmnopqrst", 10, 10, -9);
+    test("abcdefghijklmnopqrst", 1, 20, "abcdefghijklmnopqrst", 10, 11, -9);
+    test("abcdefghijklmnopqrst", 1, 20, "abcdefghijklmnopqrst", 19, 0, 19);
+    test("abcdefghijklmnopqrst", 1, 20, "abcdefghijklmnopqrst", 19, 1, -18);
+    test("abcdefghijklmnopqrst", 1, 20, "abcdefghijklmnopqrst", 19, 2, -18);
+    test("abcdefghijklmnopqrst", 1, 20, "abcdefghijklmnopqrst", 20, 0, 19);
+    test("abcdefghijklmnopqrst", 1, 20, "abcdefghijklmnopqrst", 20, 1, 19);
+    test("abcdefghijklmnopqrst", 1, 20, "abcdefghijklmnopqrst", 21, 0, 0);
+    test("abcdefghijklmnopqrst", 10, 0, "", 0, 0, 0);
+    test("abcdefghijklmnopqrst", 10, 0, "", 0, 1, 0);
+    test("abcdefghijklmnopqrst", 10, 0, "", 1, 0, 0);
+    test("abcdefghijklmnopqrst", 10, 0, "abcde", 0, 0, 0);
+    test("abcdefghijklmnopqrst", 10, 0, "abcde", 0, 1, -1);
+    test("abcdefghijklmnopqrst", 10, 0, "abcde", 0, 2, -2);
+    test("abcdefghijklmnopqrst", 10, 0, "abcde", 0, 4, -4);
+    test("abcdefghijklmnopqrst", 10, 0, "abcde", 0, 5, -5);
+    test("abcdefghijklmnopqrst", 10, 0, "abcde", 0, 6, -5);
+    test("abcdefghijklmnopqrst", 10, 0, "abcde", 1, 0, 0);
+    test("abcdefghijklmnopqrst", 10, 0, "abcde", 1, 1, -1);
+    test("abcdefghijklmnopqrst", 10, 0, "abcde", 1, 2, -2);
+}
+
+void test46()
+{
+    test("abcdefghijklmnopqrst", 10, 0, "abcde", 1, 3, -3);
+    test("abcdefghijklmnopqrst", 10, 0, "abcde", 1, 4, -4);
+    test("abcdefghijklmnopqrst", 10, 0, "abcde", 1, 5, -4);
+    test("abcdefghijklmnopqrst", 10, 0, "abcde", 2, 0, 0);
+    test("abcdefghijklmnopqrst", 10, 0, "abcde", 2, 1, -1);
+    test("abcdefghijklmnopqrst", 10, 0, "abcde", 2, 2, -2);
+    test("abcdefghijklmnopqrst", 10, 0, "abcde", 2, 3, -3);
+    test("abcdefghijklmnopqrst", 10, 0, "abcde", 2, 4, -3);
+    test("abcdefghijklmnopqrst", 10, 0, "abcde", 4, 0, 0);
+    test("abcdefghijklmnopqrst", 10, 0, "abcde", 4, 1, -1);
+    test("abcdefghijklmnopqrst", 10, 0, "abcde", 4, 2, -1);
+    test("abcdefghijklmnopqrst", 10, 0, "abcde", 5, 0, 0);
+    test("abcdefghijklmnopqrst", 10, 0, "abcde", 5, 1, 0);
+    test("abcdefghijklmnopqrst", 10, 0, "abcde", 6, 0, 0);
+    test("abcdefghijklmnopqrst", 10, 0, "abcdefghij", 0, 0, 0);
+    test("abcdefghijklmnopqrst", 10, 0, "abcdefghij", 0, 1, -1);
+    test("abcdefghijklmnopqrst", 10, 0, "abcdefghij", 0, 5, -5);
+    test("abcdefghijklmnopqrst", 10, 0, "abcdefghij", 0, 9, -9);
+    test("abcdefghijklmnopqrst", 10, 0, "abcdefghij", 0, 10, -10);
+    test("abcdefghijklmnopqrst", 10, 0, "abcdefghij", 0, 11, -10);
+    test("abcdefghijklmnopqrst", 10, 0, "abcdefghij", 1, 0, 0);
+    test("abcdefghijklmnopqrst", 10, 0, "abcdefghij", 1, 1, -1);
+    test("abcdefghijklmnopqrst", 10, 0, "abcdefghij", 1, 4, -4);
+    test("abcdefghijklmnopqrst", 10, 0, "abcdefghij", 1, 8, -8);
+    test("abcdefghijklmnopqrst", 10, 0, "abcdefghij", 1, 9, -9);
+    test("abcdefghijklmnopqrst", 10, 0, "abcdefghij", 1, 10, -9);
+    test("abcdefghijklmnopqrst", 10, 0, "abcdefghij", 5, 0, 0);
+    test("abcdefghijklmnopqrst", 10, 0, "abcdefghij", 5, 1, -1);
+    test("abcdefghijklmnopqrst", 10, 0, "abcdefghij", 5, 2, -2);
+    test("abcdefghijklmnopqrst", 10, 0, "abcdefghij", 5, 4, -4);
+    test("abcdefghijklmnopqrst", 10, 0, "abcdefghij", 5, 5, -5);
+    test("abcdefghijklmnopqrst", 10, 0, "abcdefghij", 5, 6, -5);
+    test("abcdefghijklmnopqrst", 10, 0, "abcdefghij", 9, 0, 0);
+    test("abcdefghijklmnopqrst", 10, 0, "abcdefghij", 9, 1, -1);
+    test("abcdefghijklmnopqrst", 10, 0, "abcdefghij", 9, 2, -1);
+    test("abcdefghijklmnopqrst", 10, 0, "abcdefghij", 10, 0, 0);
+    test("abcdefghijklmnopqrst", 10, 0, "abcdefghij", 10, 1, 0);
+    test("abcdefghijklmnopqrst", 10, 0, "abcdefghij", 11, 0, 0);
+    test("abcdefghijklmnopqrst", 10, 0, "abcdefghijklmnopqrst", 0, 0, 0);
+    test("abcdefghijklmnopqrst", 10, 0, "abcdefghijklmnopqrst", 0, 1, -1);
+    test("abcdefghijklmnopqrst", 10, 0, "abcdefghijklmnopqrst", 0, 10, -10);
+    test("abcdefghijklmnopqrst", 10, 0, "abcdefghijklmnopqrst", 0, 19, -19);
+    test("abcdefghijklmnopqrst", 10, 0, "abcdefghijklmnopqrst", 0, 20, -20);
+    test("abcdefghijklmnopqrst", 10, 0, "abcdefghijklmnopqrst", 0, 21, -20);
+    test("abcdefghijklmnopqrst", 10, 0, "abcdefghijklmnopqrst", 1, 0, 0);
+    test("abcdefghijklmnopqrst", 10, 0, "abcdefghijklmnopqrst", 1, 1, -1);
+    test("abcdefghijklmnopqrst", 10, 0, "abcdefghijklmnopqrst", 1, 9, -9);
+    test("abcdefghijklmnopqrst", 10, 0, "abcdefghijklmnopqrst", 1, 18, -18);
+    test("abcdefghijklmnopqrst", 10, 0, "abcdefghijklmnopqrst", 1, 19, -19);
+    test("abcdefghijklmnopqrst", 10, 0, "abcdefghijklmnopqrst", 1, 20, -19);
+    test("abcdefghijklmnopqrst", 10, 0, "abcdefghijklmnopqrst", 10, 0, 0);
+    test("abcdefghijklmnopqrst", 10, 0, "abcdefghijklmnopqrst", 10, 1, -1);
+    test("abcdefghijklmnopqrst", 10, 0, "abcdefghijklmnopqrst", 10, 5, -5);
+    test("abcdefghijklmnopqrst", 10, 0, "abcdefghijklmnopqrst", 10, 9, -9);
+    test("abcdefghijklmnopqrst", 10, 0, "abcdefghijklmnopqrst", 10, 10, -10);
+    test("abcdefghijklmnopqrst", 10, 0, "abcdefghijklmnopqrst", 10, 11, -10);
+    test("abcdefghijklmnopqrst", 10, 0, "abcdefghijklmnopqrst", 19, 0, 0);
+    test("abcdefghijklmnopqrst", 10, 0, "abcdefghijklmnopqrst", 19, 1, -1);
+    test("abcdefghijklmnopqrst", 10, 0, "abcdefghijklmnopqrst", 19, 2, -1);
+    test("abcdefghijklmnopqrst", 10, 0, "abcdefghijklmnopqrst", 20, 0, 0);
+    test("abcdefghijklmnopqrst", 10, 0, "abcdefghijklmnopqrst", 20, 1, 0);
+    test("abcdefghijklmnopqrst", 10, 0, "abcdefghijklmnopqrst", 21, 0, 0);
+    test("abcdefghijklmnopqrst", 10, 1, "", 0, 0, 1);
+    test("abcdefghijklmnopqrst", 10, 1, "", 0, 1, 1);
+    test("abcdefghijklmnopqrst", 10, 1, "", 1, 0, 0);
+    test("abcdefghijklmnopqrst", 10, 1, "abcde", 0, 0, 1);
+    test("abcdefghijklmnopqrst", 10, 1, "abcde", 0, 1, 10);
+    test("abcdefghijklmnopqrst", 10, 1, "abcde", 0, 2, 10);
+    test("abcdefghijklmnopqrst", 10, 1, "abcde", 0, 4, 10);
+    test("abcdefghijklmnopqrst", 10, 1, "abcde", 0, 5, 10);
+    test("abcdefghijklmnopqrst", 10, 1, "abcde", 0, 6, 10);
+    test("abcdefghijklmnopqrst", 10, 1, "abcde", 1, 0, 1);
+    test("abcdefghijklmnopqrst", 10, 1, "abcde", 1, 1, 9);
+    test("abcdefghijklmnopqrst", 10, 1, "abcde", 1, 2, 9);
+    test("abcdefghijklmnopqrst", 10, 1, "abcde", 1, 3, 9);
+    test("abcdefghijklmnopqrst", 10, 1, "abcde", 1, 4, 9);
+    test("abcdefghijklmnopqrst", 10, 1, "abcde", 1, 5, 9);
+    test("abcdefghijklmnopqrst", 10, 1, "abcde", 2, 0, 1);
+    test("abcdefghijklmnopqrst", 10, 1, "abcde", 2, 1, 8);
+    test("abcdefghijklmnopqrst", 10, 1, "abcde", 2, 2, 8);
+    test("abcdefghijklmnopqrst", 10, 1, "abcde", 2, 3, 8);
+    test("abcdefghijklmnopqrst", 10, 1, "abcde", 2, 4, 8);
+    test("abcdefghijklmnopqrst", 10, 1, "abcde", 4, 0, 1);
+    test("abcdefghijklmnopqrst", 10, 1, "abcde", 4, 1, 6);
+    test("abcdefghijklmnopqrst", 10, 1, "abcde", 4, 2, 6);
+    test("abcdefghijklmnopqrst", 10, 1, "abcde", 5, 0, 1);
+    test("abcdefghijklmnopqrst", 10, 1, "abcde", 5, 1, 1);
+    test("abcdefghijklmnopqrst", 10, 1, "abcde", 6, 0, 0);
+    test("abcdefghijklmnopqrst", 10, 1, "abcdefghij", 0, 0, 1);
+    test("abcdefghijklmnopqrst", 10, 1, "abcdefghij", 0, 1, 10);
+    test("abcdefghijklmnopqrst", 10, 1, "abcdefghij", 0, 5, 10);
+    test("abcdefghijklmnopqrst", 10, 1, "abcdefghij", 0, 9, 10);
+    test("abcdefghijklmnopqrst", 10, 1, "abcdefghij", 0, 10, 10);
+    test("abcdefghijklmnopqrst", 10, 1, "abcdefghij", 0, 11, 10);
+    test("abcdefghijklmnopqrst", 10, 1, "abcdefghij", 1, 0, 1);
+    test("abcdefghijklmnopqrst", 10, 1, "abcdefghij", 1, 1, 9);
+    test("abcdefghijklmnopqrst", 10, 1, "abcdefghij", 1, 4, 9);
+    test("abcdefghijklmnopqrst", 10, 1, "abcdefghij", 1, 8, 9);
+    test("abcdefghijklmnopqrst", 10, 1, "abcdefghij", 1, 9, 9);
+    test("abcdefghijklmnopqrst", 10, 1, "abcdefghij", 1, 10, 9);
+}
+
+void test47()
+{
+    test("abcdefghijklmnopqrst", 10, 1, "abcdefghij", 5, 0, 1);
+    test("abcdefghijklmnopqrst", 10, 1, "abcdefghij", 5, 1, 5);
+    test("abcdefghijklmnopqrst", 10, 1, "abcdefghij", 5, 2, 5);
+    test("abcdefghijklmnopqrst", 10, 1, "abcdefghij", 5, 4, 5);
+    test("abcdefghijklmnopqrst", 10, 1, "abcdefghij", 5, 5, 5);
+    test("abcdefghijklmnopqrst", 10, 1, "abcdefghij", 5, 6, 5);
+    test("abcdefghijklmnopqrst", 10, 1, "abcdefghij", 9, 0, 1);
+    test("abcdefghijklmnopqrst", 10, 1, "abcdefghij", 9, 1, 1);
+    test("abcdefghijklmnopqrst", 10, 1, "abcdefghij", 9, 2, 1);
+    test("abcdefghijklmnopqrst", 10, 1, "abcdefghij", 10, 0, 1);
+    test("abcdefghijklmnopqrst", 10, 1, "abcdefghij", 10, 1, 1);
+    test("abcdefghijklmnopqrst", 10, 1, "abcdefghij", 11, 0, 0);
+    test("abcdefghijklmnopqrst", 10, 1, "abcdefghijklmnopqrst", 0, 0, 1);
+    test("abcdefghijklmnopqrst", 10, 1, "abcdefghijklmnopqrst", 0, 1, 10);
+    test("abcdefghijklmnopqrst", 10, 1, "abcdefghijklmnopqrst", 0, 10, 10);
+    test("abcdefghijklmnopqrst", 10, 1, "abcdefghijklmnopqrst", 0, 19, 10);
+    test("abcdefghijklmnopqrst", 10, 1, "abcdefghijklmnopqrst", 0, 20, 10);
+    test("abcdefghijklmnopqrst", 10, 1, "abcdefghijklmnopqrst", 0, 21, 10);
+    test("abcdefghijklmnopqrst", 10, 1, "abcdefghijklmnopqrst", 1, 0, 1);
+    test("abcdefghijklmnopqrst", 10, 1, "abcdefghijklmnopqrst", 1, 1, 9);
+    test("abcdefghijklmnopqrst", 10, 1, "abcdefghijklmnopqrst", 1, 9, 9);
+    test("abcdefghijklmnopqrst", 10, 1, "abcdefghijklmnopqrst", 1, 18, 9);
+    test("abcdefghijklmnopqrst", 10, 1, "abcdefghijklmnopqrst", 1, 19, 9);
+    test("abcdefghijklmnopqrst", 10, 1, "abcdefghijklmnopqrst", 1, 20, 9);
+    test("abcdefghijklmnopqrst", 10, 1, "abcdefghijklmnopqrst", 10, 0, 1);
+    test("abcdefghijklmnopqrst", 10, 1, "abcdefghijklmnopqrst", 10, 1, 0);
+    test("abcdefghijklmnopqrst", 10, 1, "abcdefghijklmnopqrst", 10, 5, -4);
+    test("abcdefghijklmnopqrst", 10, 1, "abcdefghijklmnopqrst", 10, 9, -8);
+    test("abcdefghijklmnopqrst", 10, 1, "abcdefghijklmnopqrst", 10, 10, -9);
+    test("abcdefghijklmnopqrst", 10, 1, "abcdefghijklmnopqrst", 10, 11, -9);
+    test("abcdefghijklmnopqrst", 10, 1, "abcdefghijklmnopqrst", 19, 0, 1);
+    test("abcdefghijklmnopqrst", 10, 1, "abcdefghijklmnopqrst", 19, 1, -9);
+    test("abcdefghijklmnopqrst", 10, 1, "abcdefghijklmnopqrst", 19, 2, -9);
+    test("abcdefghijklmnopqrst", 10, 1, "abcdefghijklmnopqrst", 20, 0, 1);
+    test("abcdefghijklmnopqrst", 10, 1, "abcdefghijklmnopqrst", 20, 1, 1);
+    test("abcdefghijklmnopqrst", 10, 1, "abcdefghijklmnopqrst", 21, 0, 0);
+    test("abcdefghijklmnopqrst", 10, 5, "", 0, 0, 5);
+    test("abcdefghijklmnopqrst", 10, 5, "", 0, 1, 5);
+    test("abcdefghijklmnopqrst", 10, 5, "", 1, 0, 0);
+    test("abcdefghijklmnopqrst", 10, 5, "abcde", 0, 0, 5);
+    test("abcdefghijklmnopqrst", 10, 5, "abcde", 0, 1, 10);
+    test("abcdefghijklmnopqrst", 10, 5, "abcde", 0, 2, 10);
+    test("abcdefghijklmnopqrst", 10, 5, "abcde", 0, 4, 10);
+    test("abcdefghijklmnopqrst", 10, 5, "abcde", 0, 5, 10);
+    test("abcdefghijklmnopqrst", 10, 5, "abcde", 0, 6, 10);
+    test("abcdefghijklmnopqrst", 10, 5, "abcde", 1, 0, 5);
+    test("abcdefghijklmnopqrst", 10, 5, "abcde", 1, 1, 9);
+    test("abcdefghijklmnopqrst", 10, 5, "abcde", 1, 2, 9);
+    test("abcdefghijklmnopqrst", 10, 5, "abcde", 1, 3, 9);
+    test("abcdefghijklmnopqrst", 10, 5, "abcde", 1, 4, 9);
+    test("abcdefghijklmnopqrst", 10, 5, "abcde", 1, 5, 9);
+    test("abcdefghijklmnopqrst", 10, 5, "abcde", 2, 0, 5);
+    test("abcdefghijklmnopqrst", 10, 5, "abcde", 2, 1, 8);
+    test("abcdefghijklmnopqrst", 10, 5, "abcde", 2, 2, 8);
+    test("abcdefghijklmnopqrst", 10, 5, "abcde", 2, 3, 8);
+    test("abcdefghijklmnopqrst", 10, 5, "abcde", 2, 4, 8);
+    test("abcdefghijklmnopqrst", 10, 5, "abcde", 4, 0, 5);
+    test("abcdefghijklmnopqrst", 10, 5, "abcde", 4, 1, 6);
+    test("abcdefghijklmnopqrst", 10, 5, "abcde", 4, 2, 6);
+    test("abcdefghijklmnopqrst", 10, 5, "abcde", 5, 0, 5);
+    test("abcdefghijklmnopqrst", 10, 5, "abcde", 5, 1, 5);
+    test("abcdefghijklmnopqrst", 10, 5, "abcde", 6, 0, 0);
+    test("abcdefghijklmnopqrst", 10, 5, "abcdefghij", 0, 0, 5);
+    test("abcdefghijklmnopqrst", 10, 5, "abcdefghij", 0, 1, 10);
+    test("abcdefghijklmnopqrst", 10, 5, "abcdefghij", 0, 5, 10);
+    test("abcdefghijklmnopqrst", 10, 5, "abcdefghij", 0, 9, 10);
+    test("abcdefghijklmnopqrst", 10, 5, "abcdefghij", 0, 10, 10);
+    test("abcdefghijklmnopqrst", 10, 5, "abcdefghij", 0, 11, 10);
+    test("abcdefghijklmnopqrst", 10, 5, "abcdefghij", 1, 0, 5);
+    test("abcdefghijklmnopqrst", 10, 5, "abcdefghij", 1, 1, 9);
+    test("abcdefghijklmnopqrst", 10, 5, "abcdefghij", 1, 4, 9);
+    test("abcdefghijklmnopqrst", 10, 5, "abcdefghij", 1, 8, 9);
+    test("abcdefghijklmnopqrst", 10, 5, "abcdefghij", 1, 9, 9);
+    test("abcdefghijklmnopqrst", 10, 5, "abcdefghij", 1, 10, 9);
+    test("abcdefghijklmnopqrst", 10, 5, "abcdefghij", 5, 0, 5);
+    test("abcdefghijklmnopqrst", 10, 5, "abcdefghij", 5, 1, 5);
+    test("abcdefghijklmnopqrst", 10, 5, "abcdefghij", 5, 2, 5);
+    test("abcdefghijklmnopqrst", 10, 5, "abcdefghij", 5, 4, 5);
+    test("abcdefghijklmnopqrst", 10, 5, "abcdefghij", 5, 5, 5);
+    test("abcdefghijklmnopqrst", 10, 5, "abcdefghij", 5, 6, 5);
+    test("abcdefghijklmnopqrst", 10, 5, "abcdefghij", 9, 0, 5);
+    test("abcdefghijklmnopqrst", 10, 5, "abcdefghij", 9, 1, 1);
+    test("abcdefghijklmnopqrst", 10, 5, "abcdefghij", 9, 2, 1);
+    test("abcdefghijklmnopqrst", 10, 5, "abcdefghij", 10, 0, 5);
+    test("abcdefghijklmnopqrst", 10, 5, "abcdefghij", 10, 1, 5);
+    test("abcdefghijklmnopqrst", 10, 5, "abcdefghij", 11, 0, 0);
+    test("abcdefghijklmnopqrst", 10, 5, "abcdefghijklmnopqrst", 0, 0, 5);
+    test("abcdefghijklmnopqrst", 10, 5, "abcdefghijklmnopqrst", 0, 1, 10);
+    test("abcdefghijklmnopqrst", 10, 5, "abcdefghijklmnopqrst", 0, 10, 10);
+    test("abcdefghijklmnopqrst", 10, 5, "abcdefghijklmnopqrst", 0, 19, 10);
+    test("abcdefghijklmnopqrst", 10, 5, "abcdefghijklmnopqrst", 0, 20, 10);
+    test("abcdefghijklmnopqrst", 10, 5, "abcdefghijklmnopqrst", 0, 21, 10);
+    test("abcdefghijklmnopqrst", 10, 5, "abcdefghijklmnopqrst", 1, 0, 5);
+    test("abcdefghijklmnopqrst", 10, 5, "abcdefghijklmnopqrst", 1, 1, 9);
+    test("abcdefghijklmnopqrst", 10, 5, "abcdefghijklmnopqrst", 1, 9, 9);
+    test("abcdefghijklmnopqrst", 10, 5, "abcdefghijklmnopqrst", 1, 18, 9);
+    test("abcdefghijklmnopqrst", 10, 5, "abcdefghijklmnopqrst", 1, 19, 9);
+    test("abcdefghijklmnopqrst", 10, 5, "abcdefghijklmnopqrst", 1, 20, 9);
+    test("abcdefghijklmnopqrst", 10, 5, "abcdefghijklmnopqrst", 10, 0, 5);
+    test("abcdefghijklmnopqrst", 10, 5, "abcdefghijklmnopqrst", 10, 1, 4);
+}
+
+void test48()
+{
+    test("abcdefghijklmnopqrst", 10, 5, "abcdefghijklmnopqrst", 10, 5, 0);
+    test("abcdefghijklmnopqrst", 10, 5, "abcdefghijklmnopqrst", 10, 9, -4);
+    test("abcdefghijklmnopqrst", 10, 5, "abcdefghijklmnopqrst", 10, 10, -5);
+    test("abcdefghijklmnopqrst", 10, 5, "abcdefghijklmnopqrst", 10, 11, -5);
+    test("abcdefghijklmnopqrst", 10, 5, "abcdefghijklmnopqrst", 19, 0, 5);
+    test("abcdefghijklmnopqrst", 10, 5, "abcdefghijklmnopqrst", 19, 1, -9);
+    test("abcdefghijklmnopqrst", 10, 5, "abcdefghijklmnopqrst", 19, 2, -9);
+    test("abcdefghijklmnopqrst", 10, 5, "abcdefghijklmnopqrst", 20, 0, 5);
+    test("abcdefghijklmnopqrst", 10, 5, "abcdefghijklmnopqrst", 20, 1, 5);
+    test("abcdefghijklmnopqrst", 10, 5, "abcdefghijklmnopqrst", 21, 0, 0);
+    test("abcdefghijklmnopqrst", 10, 9, "", 0, 0, 9);
+    test("abcdefghijklmnopqrst", 10, 9, "", 0, 1, 9);
+    test("abcdefghijklmnopqrst", 10, 9, "", 1, 0, 0);
+    test("abcdefghijklmnopqrst", 10, 9, "abcde", 0, 0, 9);
+    test("abcdefghijklmnopqrst", 10, 9, "abcde", 0, 1, 10);
+    test("abcdefghijklmnopqrst", 10, 9, "abcde", 0, 2, 10);
+    test("abcdefghijklmnopqrst", 10, 9, "abcde", 0, 4, 10);
+    test("abcdefghijklmnopqrst", 10, 9, "abcde", 0, 5, 10);
+    test("abcdefghijklmnopqrst", 10, 9, "abcde", 0, 6, 10);
+    test("abcdefghijklmnopqrst", 10, 9, "abcde", 1, 0, 9);
+    test("abcdefghijklmnopqrst", 10, 9, "abcde", 1, 1, 9);
+    test("abcdefghijklmnopqrst", 10, 9, "abcde", 1, 2, 9);
+    test("abcdefghijklmnopqrst", 10, 9, "abcde", 1, 3, 9);
+    test("abcdefghijklmnopqrst", 10, 9, "abcde", 1, 4, 9);
+    test("abcdefghijklmnopqrst", 10, 9, "abcde", 1, 5, 9);
+    test("abcdefghijklmnopqrst", 10, 9, "abcde", 2, 0, 9);
+    test("abcdefghijklmnopqrst", 10, 9, "abcde", 2, 1, 8);
+    test("abcdefghijklmnopqrst", 10, 9, "abcde", 2, 2, 8);
+    test("abcdefghijklmnopqrst", 10, 9, "abcde", 2, 3, 8);
+    test("abcdefghijklmnopqrst", 10, 9, "abcde", 2, 4, 8);
+    test("abcdefghijklmnopqrst", 10, 9, "abcde", 4, 0, 9);
+    test("abcdefghijklmnopqrst", 10, 9, "abcde", 4, 1, 6);
+    test("abcdefghijklmnopqrst", 10, 9, "abcde", 4, 2, 6);
+    test("abcdefghijklmnopqrst", 10, 9, "abcde", 5, 0, 9);
+    test("abcdefghijklmnopqrst", 10, 9, "abcde", 5, 1, 9);
+    test("abcdefghijklmnopqrst", 10, 9, "abcde", 6, 0, 0);
+    test("abcdefghijklmnopqrst", 10, 9, "abcdefghij", 0, 0, 9);
+    test("abcdefghijklmnopqrst", 10, 9, "abcdefghij", 0, 1, 10);
+    test("abcdefghijklmnopqrst", 10, 9, "abcdefghij", 0, 5, 10);
+    test("abcdefghijklmnopqrst", 10, 9, "abcdefghij", 0, 9, 10);
+    test("abcdefghijklmnopqrst", 10, 9, "abcdefghij", 0, 10, 10);
+    test("abcdefghijklmnopqrst", 10, 9, "abcdefghij", 0, 11, 10);
+    test("abcdefghijklmnopqrst", 10, 9, "abcdefghij", 1, 0, 9);
+    test("abcdefghijklmnopqrst", 10, 9, "abcdefghij", 1, 1, 9);
+    test("abcdefghijklmnopqrst", 10, 9, "abcdefghij", 1, 4, 9);
+    test("abcdefghijklmnopqrst", 10, 9, "abcdefghij", 1, 8, 9);
+    test("abcdefghijklmnopqrst", 10, 9, "abcdefghij", 1, 9, 9);
+    test("abcdefghijklmnopqrst", 10, 9, "abcdefghij", 1, 10, 9);
+    test("abcdefghijklmnopqrst", 10, 9, "abcdefghij", 5, 0, 9);
+    test("abcdefghijklmnopqrst", 10, 9, "abcdefghij", 5, 1, 5);
+    test("abcdefghijklmnopqrst", 10, 9, "abcdefghij", 5, 2, 5);
+    test("abcdefghijklmnopqrst", 10, 9, "abcdefghij", 5, 4, 5);
+    test("abcdefghijklmnopqrst", 10, 9, "abcdefghij", 5, 5, 5);
+    test("abcdefghijklmnopqrst", 10, 9, "abcdefghij", 5, 6, 5);
+    test("abcdefghijklmnopqrst", 10, 9, "abcdefghij", 9, 0, 9);
+    test("abcdefghijklmnopqrst", 10, 9, "abcdefghij", 9, 1, 1);
+    test("abcdefghijklmnopqrst", 10, 9, "abcdefghij", 9, 2, 1);
+    test("abcdefghijklmnopqrst", 10, 9, "abcdefghij", 10, 0, 9);
+    test("abcdefghijklmnopqrst", 10, 9, "abcdefghij", 10, 1, 9);
+    test("abcdefghijklmnopqrst", 10, 9, "abcdefghij", 11, 0, 0);
+    test("abcdefghijklmnopqrst", 10, 9, "abcdefghijklmnopqrst", 0, 0, 9);
+    test("abcdefghijklmnopqrst", 10, 9, "abcdefghijklmnopqrst", 0, 1, 10);
+    test("abcdefghijklmnopqrst", 10, 9, "abcdefghijklmnopqrst", 0, 10, 10);
+    test("abcdefghijklmnopqrst", 10, 9, "abcdefghijklmnopqrst", 0, 19, 10);
+    test("abcdefghijklmnopqrst", 10, 9, "abcdefghijklmnopqrst", 0, 20, 10);
+    test("abcdefghijklmnopqrst", 10, 9, "abcdefghijklmnopqrst", 0, 21, 10);
+    test("abcdefghijklmnopqrst", 10, 9, "abcdefghijklmnopqrst", 1, 0, 9);
+    test("abcdefghijklmnopqrst", 10, 9, "abcdefghijklmnopqrst", 1, 1, 9);
+    test("abcdefghijklmnopqrst", 10, 9, "abcdefghijklmnopqrst", 1, 9, 9);
+    test("abcdefghijklmnopqrst", 10, 9, "abcdefghijklmnopqrst", 1, 18, 9);
+    test("abcdefghijklmnopqrst", 10, 9, "abcdefghijklmnopqrst", 1, 19, 9);
+    test("abcdefghijklmnopqrst", 10, 9, "abcdefghijklmnopqrst", 1, 20, 9);
+    test("abcdefghijklmnopqrst", 10, 9, "abcdefghijklmnopqrst", 10, 0, 9);
+    test("abcdefghijklmnopqrst", 10, 9, "abcdefghijklmnopqrst", 10, 1, 8);
+    test("abcdefghijklmnopqrst", 10, 9, "abcdefghijklmnopqrst", 10, 5, 4);
+    test("abcdefghijklmnopqrst", 10, 9, "abcdefghijklmnopqrst", 10, 9, 0);
+    test("abcdefghijklmnopqrst", 10, 9, "abcdefghijklmnopqrst", 10, 10, -1);
+    test("abcdefghijklmnopqrst", 10, 9, "abcdefghijklmnopqrst", 10, 11, -1);
+    test("abcdefghijklmnopqrst", 10, 9, "abcdefghijklmnopqrst", 19, 0, 9);
+    test("abcdefghijklmnopqrst", 10, 9, "abcdefghijklmnopqrst", 19, 1, -9);
+    test("abcdefghijklmnopqrst", 10, 9, "abcdefghijklmnopqrst", 19, 2, -9);
+    test("abcdefghijklmnopqrst", 10, 9, "abcdefghijklmnopqrst", 20, 0, 9);
+    test("abcdefghijklmnopqrst", 10, 9, "abcdefghijklmnopqrst", 20, 1, 9);
+    test("abcdefghijklmnopqrst", 10, 9, "abcdefghijklmnopqrst", 21, 0, 0);
+    test("abcdefghijklmnopqrst", 10, 10, "", 0, 0, 10);
+    test("abcdefghijklmnopqrst", 10, 10, "", 0, 1, 10);
+    test("abcdefghijklmnopqrst", 10, 10, "", 1, 0, 0);
+    test("abcdefghijklmnopqrst", 10, 10, "abcde", 0, 0, 10);
+    test("abcdefghijklmnopqrst", 10, 10, "abcde", 0, 1, 10);
+    test("abcdefghijklmnopqrst", 10, 10, "abcde", 0, 2, 10);
+    test("abcdefghijklmnopqrst", 10, 10, "abcde", 0, 4, 10);
+    test("abcdefghijklmnopqrst", 10, 10, "abcde", 0, 5, 10);
+    test("abcdefghijklmnopqrst", 10, 10, "abcde", 0, 6, 10);
+    test("abcdefghijklmnopqrst", 10, 10, "abcde", 1, 0, 10);
+    test("abcdefghijklmnopqrst", 10, 10, "abcde", 1, 1, 9);
+    test("abcdefghijklmnopqrst", 10, 10, "abcde", 1, 2, 9);
+    test("abcdefghijklmnopqrst", 10, 10, "abcde", 1, 3, 9);
+    test("abcdefghijklmnopqrst", 10, 10, "abcde", 1, 4, 9);
+    test("abcdefghijklmnopqrst", 10, 10, "abcde", 1, 5, 9);
+    test("abcdefghijklmnopqrst", 10, 10, "abcde", 2, 0, 10);
+}
+
+void test49()
+{
+    test("abcdefghijklmnopqrst", 10, 10, "abcde", 2, 1, 8);
+    test("abcdefghijklmnopqrst", 10, 10, "abcde", 2, 2, 8);
+    test("abcdefghijklmnopqrst", 10, 10, "abcde", 2, 3, 8);
+    test("abcdefghijklmnopqrst", 10, 10, "abcde", 2, 4, 8);
+    test("abcdefghijklmnopqrst", 10, 10, "abcde", 4, 0, 10);
+    test("abcdefghijklmnopqrst", 10, 10, "abcde", 4, 1, 6);
+    test("abcdefghijklmnopqrst", 10, 10, "abcde", 4, 2, 6);
+    test("abcdefghijklmnopqrst", 10, 10, "abcde", 5, 0, 10);
+    test("abcdefghijklmnopqrst", 10, 10, "abcde", 5, 1, 10);
+    test("abcdefghijklmnopqrst", 10, 10, "abcde", 6, 0, 0);
+    test("abcdefghijklmnopqrst", 10, 10, "abcdefghij", 0, 0, 10);
+    test("abcdefghijklmnopqrst", 10, 10, "abcdefghij", 0, 1, 10);
+    test("abcdefghijklmnopqrst", 10, 10, "abcdefghij", 0, 5, 10);
+    test("abcdefghijklmnopqrst", 10, 10, "abcdefghij", 0, 9, 10);
+    test("abcdefghijklmnopqrst", 10, 10, "abcdefghij", 0, 10, 10);
+    test("abcdefghijklmnopqrst", 10, 10, "abcdefghij", 0, 11, 10);
+    test("abcdefghijklmnopqrst", 10, 10, "abcdefghij", 1, 0, 10);
+    test("abcdefghijklmnopqrst", 10, 10, "abcdefghij", 1, 1, 9);
+    test("abcdefghijklmnopqrst", 10, 10, "abcdefghij", 1, 4, 9);
+    test("abcdefghijklmnopqrst", 10, 10, "abcdefghij", 1, 8, 9);
+    test("abcdefghijklmnopqrst", 10, 10, "abcdefghij", 1, 9, 9);
+    test("abcdefghijklmnopqrst", 10, 10, "abcdefghij", 1, 10, 9);
+    test("abcdefghijklmnopqrst", 10, 10, "abcdefghij", 5, 0, 10);
+    test("abcdefghijklmnopqrst", 10, 10, "abcdefghij", 5, 1, 5);
+    test("abcdefghijklmnopqrst", 10, 10, "abcdefghij", 5, 2, 5);
+    test("abcdefghijklmnopqrst", 10, 10, "abcdefghij", 5, 4, 5);
+    test("abcdefghijklmnopqrst", 10, 10, "abcdefghij", 5, 5, 5);
+    test("abcdefghijklmnopqrst", 10, 10, "abcdefghij", 5, 6, 5);
+    test("abcdefghijklmnopqrst", 10, 10, "abcdefghij", 9, 0, 10);
+    test("abcdefghijklmnopqrst", 10, 10, "abcdefghij", 9, 1, 1);
+    test("abcdefghijklmnopqrst", 10, 10, "abcdefghij", 9, 2, 1);
+    test("abcdefghijklmnopqrst", 10, 10, "abcdefghij", 10, 0, 10);
+    test("abcdefghijklmnopqrst", 10, 10, "abcdefghij", 10, 1, 10);
+    test("abcdefghijklmnopqrst", 10, 10, "abcdefghij", 11, 0, 0);
+    test("abcdefghijklmnopqrst", 10, 10, "abcdefghijklmnopqrst", 0, 0, 10);
+    test("abcdefghijklmnopqrst", 10, 10, "abcdefghijklmnopqrst", 0, 1, 10);
+    test("abcdefghijklmnopqrst", 10, 10, "abcdefghijklmnopqrst", 0, 10, 10);
+    test("abcdefghijklmnopqrst", 10, 10, "abcdefghijklmnopqrst", 0, 19, 10);
+    test("abcdefghijklmnopqrst", 10, 10, "abcdefghijklmnopqrst", 0, 20, 10);
+    test("abcdefghijklmnopqrst", 10, 10, "abcdefghijklmnopqrst", 0, 21, 10);
+    test("abcdefghijklmnopqrst", 10, 10, "abcdefghijklmnopqrst", 1, 0, 10);
+    test("abcdefghijklmnopqrst", 10, 10, "abcdefghijklmnopqrst", 1, 1, 9);
+    test("abcdefghijklmnopqrst", 10, 10, "abcdefghijklmnopqrst", 1, 9, 9);
+    test("abcdefghijklmnopqrst", 10, 10, "abcdefghijklmnopqrst", 1, 18, 9);
+    test("abcdefghijklmnopqrst", 10, 10, "abcdefghijklmnopqrst", 1, 19, 9);
+    test("abcdefghijklmnopqrst", 10, 10, "abcdefghijklmnopqrst", 1, 20, 9);
+    test("abcdefghijklmnopqrst", 10, 10, "abcdefghijklmnopqrst", 10, 0, 10);
+    test("abcdefghijklmnopqrst", 10, 10, "abcdefghijklmnopqrst", 10, 1, 9);
+    test("abcdefghijklmnopqrst", 10, 10, "abcdefghijklmnopqrst", 10, 5, 5);
+    test("abcdefghijklmnopqrst", 10, 10, "abcdefghijklmnopqrst", 10, 9, 1);
+    test("abcdefghijklmnopqrst", 10, 10, "abcdefghijklmnopqrst", 10, 10, 0);
+    test("abcdefghijklmnopqrst", 10, 10, "abcdefghijklmnopqrst", 10, 11, 0);
+    test("abcdefghijklmnopqrst", 10, 10, "abcdefghijklmnopqrst", 19, 0, 10);
+    test("abcdefghijklmnopqrst", 10, 10, "abcdefghijklmnopqrst", 19, 1, -9);
+    test("abcdefghijklmnopqrst", 10, 10, "abcdefghijklmnopqrst", 19, 2, -9);
+    test("abcdefghijklmnopqrst", 10, 10, "abcdefghijklmnopqrst", 20, 0, 10);
+    test("abcdefghijklmnopqrst", 10, 10, "abcdefghijklmnopqrst", 20, 1, 10);
+    test("abcdefghijklmnopqrst", 10, 10, "abcdefghijklmnopqrst", 21, 0, 0);
+    test("abcdefghijklmnopqrst", 10, 11, "", 0, 0, 10);
+    test("abcdefghijklmnopqrst", 10, 11, "", 0, 1, 10);
+    test("abcdefghijklmnopqrst", 10, 11, "", 1, 0, 0);
+    test("abcdefghijklmnopqrst", 10, 11, "abcde", 0, 0, 10);
+    test("abcdefghijklmnopqrst", 10, 11, "abcde", 0, 1, 10);
+    test("abcdefghijklmnopqrst", 10, 11, "abcde", 0, 2, 10);
+    test("abcdefghijklmnopqrst", 10, 11, "abcde", 0, 4, 10);
+    test("abcdefghijklmnopqrst", 10, 11, "abcde", 0, 5, 10);
+    test("abcdefghijklmnopqrst", 10, 11, "abcde", 0, 6, 10);
+    test("abcdefghijklmnopqrst", 10, 11, "abcde", 1, 0, 10);
+    test("abcdefghijklmnopqrst", 10, 11, "abcde", 1, 1, 9);
+    test("abcdefghijklmnopqrst", 10, 11, "abcde", 1, 2, 9);
+    test("abcdefghijklmnopqrst", 10, 11, "abcde", 1, 3, 9);
+    test("abcdefghijklmnopqrst", 10, 11, "abcde", 1, 4, 9);
+    test("abcdefghijklmnopqrst", 10, 11, "abcde", 1, 5, 9);
+    test("abcdefghijklmnopqrst", 10, 11, "abcde", 2, 0, 10);
+    test("abcdefghijklmnopqrst", 10, 11, "abcde", 2, 1, 8);
+    test("abcdefghijklmnopqrst", 10, 11, "abcde", 2, 2, 8);
+    test("abcdefghijklmnopqrst", 10, 11, "abcde", 2, 3, 8);
+    test("abcdefghijklmnopqrst", 10, 11, "abcde", 2, 4, 8);
+    test("abcdefghijklmnopqrst", 10, 11, "abcde", 4, 0, 10);
+    test("abcdefghijklmnopqrst", 10, 11, "abcde", 4, 1, 6);
+    test("abcdefghijklmnopqrst", 10, 11, "abcde", 4, 2, 6);
+    test("abcdefghijklmnopqrst", 10, 11, "abcde", 5, 0, 10);
+    test("abcdefghijklmnopqrst", 10, 11, "abcde", 5, 1, 10);
+    test("abcdefghijklmnopqrst", 10, 11, "abcde", 6, 0, 0);
+    test("abcdefghijklmnopqrst", 10, 11, "abcdefghij", 0, 0, 10);
+    test("abcdefghijklmnopqrst", 10, 11, "abcdefghij", 0, 1, 10);
+    test("abcdefghijklmnopqrst", 10, 11, "abcdefghij", 0, 5, 10);
+    test("abcdefghijklmnopqrst", 10, 11, "abcdefghij", 0, 9, 10);
+    test("abcdefghijklmnopqrst", 10, 11, "abcdefghij", 0, 10, 10);
+    test("abcdefghijklmnopqrst", 10, 11, "abcdefghij", 0, 11, 10);
+    test("abcdefghijklmnopqrst", 10, 11, "abcdefghij", 1, 0, 10);
+    test("abcdefghijklmnopqrst", 10, 11, "abcdefghij", 1, 1, 9);
+    test("abcdefghijklmnopqrst", 10, 11, "abcdefghij", 1, 4, 9);
+    test("abcdefghijklmnopqrst", 10, 11, "abcdefghij", 1, 8, 9);
+    test("abcdefghijklmnopqrst", 10, 11, "abcdefghij", 1, 9, 9);
+    test("abcdefghijklmnopqrst", 10, 11, "abcdefghij", 1, 10, 9);
+    test("abcdefghijklmnopqrst", 10, 11, "abcdefghij", 5, 0, 10);
+    test("abcdefghijklmnopqrst", 10, 11, "abcdefghij", 5, 1, 5);
+    test("abcdefghijklmnopqrst", 10, 11, "abcdefghij", 5, 2, 5);
+    test("abcdefghijklmnopqrst", 10, 11, "abcdefghij", 5, 4, 5);
+}
+
+void test50()
+{
+    test("abcdefghijklmnopqrst", 10, 11, "abcdefghij", 5, 5, 5);
+    test("abcdefghijklmnopqrst", 10, 11, "abcdefghij", 5, 6, 5);
+    test("abcdefghijklmnopqrst", 10, 11, "abcdefghij", 9, 0, 10);
+    test("abcdefghijklmnopqrst", 10, 11, "abcdefghij", 9, 1, 1);
+    test("abcdefghijklmnopqrst", 10, 11, "abcdefghij", 9, 2, 1);
+    test("abcdefghijklmnopqrst", 10, 11, "abcdefghij", 10, 0, 10);
+    test("abcdefghijklmnopqrst", 10, 11, "abcdefghij", 10, 1, 10);
+    test("abcdefghijklmnopqrst", 10, 11, "abcdefghij", 11, 0, 0);
+    test("abcdefghijklmnopqrst", 10, 11, "abcdefghijklmnopqrst", 0, 0, 10);
+    test("abcdefghijklmnopqrst", 10, 11, "abcdefghijklmnopqrst", 0, 1, 10);
+    test("abcdefghijklmnopqrst", 10, 11, "abcdefghijklmnopqrst", 0, 10, 10);
+    test("abcdefghijklmnopqrst", 10, 11, "abcdefghijklmnopqrst", 0, 19, 10);
+    test("abcdefghijklmnopqrst", 10, 11, "abcdefghijklmnopqrst", 0, 20, 10);
+    test("abcdefghijklmnopqrst", 10, 11, "abcdefghijklmnopqrst", 0, 21, 10);
+    test("abcdefghijklmnopqrst", 10, 11, "abcdefghijklmnopqrst", 1, 0, 10);
+    test("abcdefghijklmnopqrst", 10, 11, "abcdefghijklmnopqrst", 1, 1, 9);
+    test("abcdefghijklmnopqrst", 10, 11, "abcdefghijklmnopqrst", 1, 9, 9);
+    test("abcdefghijklmnopqrst", 10, 11, "abcdefghijklmnopqrst", 1, 18, 9);
+    test("abcdefghijklmnopqrst", 10, 11, "abcdefghijklmnopqrst", 1, 19, 9);
+    test("abcdefghijklmnopqrst", 10, 11, "abcdefghijklmnopqrst", 1, 20, 9);
+    test("abcdefghijklmnopqrst", 10, 11, "abcdefghijklmnopqrst", 10, 0, 10);
+    test("abcdefghijklmnopqrst", 10, 11, "abcdefghijklmnopqrst", 10, 1, 9);
+    test("abcdefghijklmnopqrst", 10, 11, "abcdefghijklmnopqrst", 10, 5, 5);
+    test("abcdefghijklmnopqrst", 10, 11, "abcdefghijklmnopqrst", 10, 9, 1);
+    test("abcdefghijklmnopqrst", 10, 11, "abcdefghijklmnopqrst", 10, 10, 0);
+    test("abcdefghijklmnopqrst", 10, 11, "abcdefghijklmnopqrst", 10, 11, 0);
+    test("abcdefghijklmnopqrst", 10, 11, "abcdefghijklmnopqrst", 19, 0, 10);
+    test("abcdefghijklmnopqrst", 10, 11, "abcdefghijklmnopqrst", 19, 1, -9);
+    test("abcdefghijklmnopqrst", 10, 11, "abcdefghijklmnopqrst", 19, 2, -9);
+    test("abcdefghijklmnopqrst", 10, 11, "abcdefghijklmnopqrst", 20, 0, 10);
+    test("abcdefghijklmnopqrst", 10, 11, "abcdefghijklmnopqrst", 20, 1, 10);
+    test("abcdefghijklmnopqrst", 10, 11, "abcdefghijklmnopqrst", 21, 0, 0);
+    test("abcdefghijklmnopqrst", 19, 0, "", 0, 0, 0);
+    test("abcdefghijklmnopqrst", 19, 0, "", 0, 1, 0);
+    test("abcdefghijklmnopqrst", 19, 0, "", 1, 0, 0);
+    test("abcdefghijklmnopqrst", 19, 0, "abcde", 0, 0, 0);
+    test("abcdefghijklmnopqrst", 19, 0, "abcde", 0, 1, -1);
+    test("abcdefghijklmnopqrst", 19, 0, "abcde", 0, 2, -2);
+    test("abcdefghijklmnopqrst", 19, 0, "abcde", 0, 4, -4);
+    test("abcdefghijklmnopqrst", 19, 0, "abcde", 0, 5, -5);
+    test("abcdefghijklmnopqrst", 19, 0, "abcde", 0, 6, -5);
+    test("abcdefghijklmnopqrst", 19, 0, "abcde", 1, 0, 0);
+    test("abcdefghijklmnopqrst", 19, 0, "abcde", 1, 1, -1);
+    test("abcdefghijklmnopqrst", 19, 0, "abcde", 1, 2, -2);
+    test("abcdefghijklmnopqrst", 19, 0, "abcde", 1, 3, -3);
+    test("abcdefghijklmnopqrst", 19, 0, "abcde", 1, 4, -4);
+    test("abcdefghijklmnopqrst", 19, 0, "abcde", 1, 5, -4);
+    test("abcdefghijklmnopqrst", 19, 0, "abcde", 2, 0, 0);
+    test("abcdefghijklmnopqrst", 19, 0, "abcde", 2, 1, -1);
+    test("abcdefghijklmnopqrst", 19, 0, "abcde", 2, 2, -2);
+    test("abcdefghijklmnopqrst", 19, 0, "abcde", 2, 3, -3);
+    test("abcdefghijklmnopqrst", 19, 0, "abcde", 2, 4, -3);
+    test("abcdefghijklmnopqrst", 19, 0, "abcde", 4, 0, 0);
+    test("abcdefghijklmnopqrst", 19, 0, "abcde", 4, 1, -1);
+    test("abcdefghijklmnopqrst", 19, 0, "abcde", 4, 2, -1);
+    test("abcdefghijklmnopqrst", 19, 0, "abcde", 5, 0, 0);
+    test("abcdefghijklmnopqrst", 19, 0, "abcde", 5, 1, 0);
+    test("abcdefghijklmnopqrst", 19, 0, "abcde", 6, 0, 0);
+    test("abcdefghijklmnopqrst", 19, 0, "abcdefghij", 0, 0, 0);
+    test("abcdefghijklmnopqrst", 19, 0, "abcdefghij", 0, 1, -1);
+    test("abcdefghijklmnopqrst", 19, 0, "abcdefghij", 0, 5, -5);
+    test("abcdefghijklmnopqrst", 19, 0, "abcdefghij", 0, 9, -9);
+    test("abcdefghijklmnopqrst", 19, 0, "abcdefghij", 0, 10, -10);
+    test("abcdefghijklmnopqrst", 19, 0, "abcdefghij", 0, 11, -10);
+    test("abcdefghijklmnopqrst", 19, 0, "abcdefghij", 1, 0, 0);
+    test("abcdefghijklmnopqrst", 19, 0, "abcdefghij", 1, 1, -1);
+    test("abcdefghijklmnopqrst", 19, 0, "abcdefghij", 1, 4, -4);
+    test("abcdefghijklmnopqrst", 19, 0, "abcdefghij", 1, 8, -8);
+    test("abcdefghijklmnopqrst", 19, 0, "abcdefghij", 1, 9, -9);
+    test("abcdefghijklmnopqrst", 19, 0, "abcdefghij", 1, 10, -9);
+    test("abcdefghijklmnopqrst", 19, 0, "abcdefghij", 5, 0, 0);
+    test("abcdefghijklmnopqrst", 19, 0, "abcdefghij", 5, 1, -1);
+    test("abcdefghijklmnopqrst", 19, 0, "abcdefghij", 5, 2, -2);
+    test("abcdefghijklmnopqrst", 19, 0, "abcdefghij", 5, 4, -4);
+    test("abcdefghijklmnopqrst", 19, 0, "abcdefghij", 5, 5, -5);
+    test("abcdefghijklmnopqrst", 19, 0, "abcdefghij", 5, 6, -5);
+    test("abcdefghijklmnopqrst", 19, 0, "abcdefghij", 9, 0, 0);
+    test("abcdefghijklmnopqrst", 19, 0, "abcdefghij", 9, 1, -1);
+    test("abcdefghijklmnopqrst", 19, 0, "abcdefghij", 9, 2, -1);
+    test("abcdefghijklmnopqrst", 19, 0, "abcdefghij", 10, 0, 0);
+    test("abcdefghijklmnopqrst", 19, 0, "abcdefghij", 10, 1, 0);
+    test("abcdefghijklmnopqrst", 19, 0, "abcdefghij", 11, 0, 0);
+    test("abcdefghijklmnopqrst", 19, 0, "abcdefghijklmnopqrst", 0, 0, 0);
+    test("abcdefghijklmnopqrst", 19, 0, "abcdefghijklmnopqrst", 0, 1, -1);
+    test("abcdefghijklmnopqrst", 19, 0, "abcdefghijklmnopqrst", 0, 10, -10);
+    test("abcdefghijklmnopqrst", 19, 0, "abcdefghijklmnopqrst", 0, 19, -19);
+    test("abcdefghijklmnopqrst", 19, 0, "abcdefghijklmnopqrst", 0, 20, -20);
+    test("abcdefghijklmnopqrst", 19, 0, "abcdefghijklmnopqrst", 0, 21, -20);
+    test("abcdefghijklmnopqrst", 19, 0, "abcdefghijklmnopqrst", 1, 0, 0);
+    test("abcdefghijklmnopqrst", 19, 0, "abcdefghijklmnopqrst", 1, 1, -1);
+    test("abcdefghijklmnopqrst", 19, 0, "abcdefghijklmnopqrst", 1, 9, -9);
+    test("abcdefghijklmnopqrst", 19, 0, "abcdefghijklmnopqrst", 1, 18, -18);
+    test("abcdefghijklmnopqrst", 19, 0, "abcdefghijklmnopqrst", 1, 19, -19);
+    test("abcdefghijklmnopqrst", 19, 0, "abcdefghijklmnopqrst", 1, 20, -19);
+    test("abcdefghijklmnopqrst", 19, 0, "abcdefghijklmnopqrst", 10, 0, 0);
+    test("abcdefghijklmnopqrst", 19, 0, "abcdefghijklmnopqrst", 10, 1, -1);
+    test("abcdefghijklmnopqrst", 19, 0, "abcdefghijklmnopqrst", 10, 5, -5);
+    test("abcdefghijklmnopqrst", 19, 0, "abcdefghijklmnopqrst", 10, 9, -9);
+    test("abcdefghijklmnopqrst", 19, 0, "abcdefghijklmnopqrst", 10, 10, -10);
+    test("abcdefghijklmnopqrst", 19, 0, "abcdefghijklmnopqrst", 10, 11, -10);
+}
+
+void test51()
+{
+    test("abcdefghijklmnopqrst", 19, 0, "abcdefghijklmnopqrst", 19, 0, 0);
+    test("abcdefghijklmnopqrst", 19, 0, "abcdefghijklmnopqrst", 19, 1, -1);
+    test("abcdefghijklmnopqrst", 19, 0, "abcdefghijklmnopqrst", 19, 2, -1);
+    test("abcdefghijklmnopqrst", 19, 0, "abcdefghijklmnopqrst", 20, 0, 0);
+    test("abcdefghijklmnopqrst", 19, 0, "abcdefghijklmnopqrst", 20, 1, 0);
+    test("abcdefghijklmnopqrst", 19, 0, "abcdefghijklmnopqrst", 21, 0, 0);
+    test("abcdefghijklmnopqrst", 19, 1, "", 0, 0, 1);
+    test("abcdefghijklmnopqrst", 19, 1, "", 0, 1, 1);
+    test("abcdefghijklmnopqrst", 19, 1, "", 1, 0, 0);
+    test("abcdefghijklmnopqrst", 19, 1, "abcde", 0, 0, 1);
+    test("abcdefghijklmnopqrst", 19, 1, "abcde", 0, 1, 19);
+    test("abcdefghijklmnopqrst", 19, 1, "abcde", 0, 2, 19);
+    test("abcdefghijklmnopqrst", 19, 1, "abcde", 0, 4, 19);
+    test("abcdefghijklmnopqrst", 19, 1, "abcde", 0, 5, 19);
+    test("abcdefghijklmnopqrst", 19, 1, "abcde", 0, 6, 19);
+    test("abcdefghijklmnopqrst", 19, 1, "abcde", 1, 0, 1);
+    test("abcdefghijklmnopqrst", 19, 1, "abcde", 1, 1, 18);
+    test("abcdefghijklmnopqrst", 19, 1, "abcde", 1, 2, 18);
+    test("abcdefghijklmnopqrst", 19, 1, "abcde", 1, 3, 18);
+    test("abcdefghijklmnopqrst", 19, 1, "abcde", 1, 4, 18);
+    test("abcdefghijklmnopqrst", 19, 1, "abcde", 1, 5, 18);
+    test("abcdefghijklmnopqrst", 19, 1, "abcde", 2, 0, 1);
+    test("abcdefghijklmnopqrst", 19, 1, "abcde", 2, 1, 17);
+    test("abcdefghijklmnopqrst", 19, 1, "abcde", 2, 2, 17);
+    test("abcdefghijklmnopqrst", 19, 1, "abcde", 2, 3, 17);
+    test("abcdefghijklmnopqrst", 19, 1, "abcde", 2, 4, 17);
+    test("abcdefghijklmnopqrst", 19, 1, "abcde", 4, 0, 1);
+    test("abcdefghijklmnopqrst", 19, 1, "abcde", 4, 1, 15);
+    test("abcdefghijklmnopqrst", 19, 1, "abcde", 4, 2, 15);
+    test("abcdefghijklmnopqrst", 19, 1, "abcde", 5, 0, 1);
+    test("abcdefghijklmnopqrst", 19, 1, "abcde", 5, 1, 1);
+    test("abcdefghijklmnopqrst", 19, 1, "abcde", 6, 0, 0);
+    test("abcdefghijklmnopqrst", 19, 1, "abcdefghij", 0, 0, 1);
+    test("abcdefghijklmnopqrst", 19, 1, "abcdefghij", 0, 1, 19);
+    test("abcdefghijklmnopqrst", 19, 1, "abcdefghij", 0, 5, 19);
+    test("abcdefghijklmnopqrst", 19, 1, "abcdefghij", 0, 9, 19);
+    test("abcdefghijklmnopqrst", 19, 1, "abcdefghij", 0, 10, 19);
+    test("abcdefghijklmnopqrst", 19, 1, "abcdefghij", 0, 11, 19);
+    test("abcdefghijklmnopqrst", 19, 1, "abcdefghij", 1, 0, 1);
+    test("abcdefghijklmnopqrst", 19, 1, "abcdefghij", 1, 1, 18);
+    test("abcdefghijklmnopqrst", 19, 1, "abcdefghij", 1, 4, 18);
+    test("abcdefghijklmnopqrst", 19, 1, "abcdefghij", 1, 8, 18);
+    test("abcdefghijklmnopqrst", 19, 1, "abcdefghij", 1, 9, 18);
+    test("abcdefghijklmnopqrst", 19, 1, "abcdefghij", 1, 10, 18);
+    test("abcdefghijklmnopqrst", 19, 1, "abcdefghij", 5, 0, 1);
+    test("abcdefghijklmnopqrst", 19, 1, "abcdefghij", 5, 1, 14);
+    test("abcdefghijklmnopqrst", 19, 1, "abcdefghij", 5, 2, 14);
+    test("abcdefghijklmnopqrst", 19, 1, "abcdefghij", 5, 4, 14);
+    test("abcdefghijklmnopqrst", 19, 1, "abcdefghij", 5, 5, 14);
+    test("abcdefghijklmnopqrst", 19, 1, "abcdefghij", 5, 6, 14);
+    test("abcdefghijklmnopqrst", 19, 1, "abcdefghij", 9, 0, 1);
+    test("abcdefghijklmnopqrst", 19, 1, "abcdefghij", 9, 1, 10);
+    test("abcdefghijklmnopqrst", 19, 1, "abcdefghij", 9, 2, 10);
+    test("abcdefghijklmnopqrst", 19, 1, "abcdefghij", 10, 0, 1);
+    test("abcdefghijklmnopqrst", 19, 1, "abcdefghij", 10, 1, 1);
+    test("abcdefghijklmnopqrst", 19, 1, "abcdefghij", 11, 0, 0);
+    test("abcdefghijklmnopqrst", 19, 1, "abcdefghijklmnopqrst", 0, 0, 1);
+    test("abcdefghijklmnopqrst", 19, 1, "abcdefghijklmnopqrst", 0, 1, 19);
+    test("abcdefghijklmnopqrst", 19, 1, "abcdefghijklmnopqrst", 0, 10, 19);
+    test("abcdefghijklmnopqrst", 19, 1, "abcdefghijklmnopqrst", 0, 19, 19);
+    test("abcdefghijklmnopqrst", 19, 1, "abcdefghijklmnopqrst", 0, 20, 19);
+    test("abcdefghijklmnopqrst", 19, 1, "abcdefghijklmnopqrst", 0, 21, 19);
+    test("abcdefghijklmnopqrst", 19, 1, "abcdefghijklmnopqrst", 1, 0, 1);
+    test("abcdefghijklmnopqrst", 19, 1, "abcdefghijklmnopqrst", 1, 1, 18);
+    test("abcdefghijklmnopqrst", 19, 1, "abcdefghijklmnopqrst", 1, 9, 18);
+    test("abcdefghijklmnopqrst", 19, 1, "abcdefghijklmnopqrst", 1, 18, 18);
+    test("abcdefghijklmnopqrst", 19, 1, "abcdefghijklmnopqrst", 1, 19, 18);
+    test("abcdefghijklmnopqrst", 19, 1, "abcdefghijklmnopqrst", 1, 20, 18);
+    test("abcdefghijklmnopqrst", 19, 1, "abcdefghijklmnopqrst", 10, 0, 1);
+    test("abcdefghijklmnopqrst", 19, 1, "abcdefghijklmnopqrst", 10, 1, 9);
+    test("abcdefghijklmnopqrst", 19, 1, "abcdefghijklmnopqrst", 10, 5, 9);
+    test("abcdefghijklmnopqrst", 19, 1, "abcdefghijklmnopqrst", 10, 9, 9);
+    test("abcdefghijklmnopqrst", 19, 1, "abcdefghijklmnopqrst", 10, 10, 9);
+    test("abcdefghijklmnopqrst", 19, 1, "abcdefghijklmnopqrst", 10, 11, 9);
+    test("abcdefghijklmnopqrst", 19, 1, "abcdefghijklmnopqrst", 19, 0, 1);
+    test("abcdefghijklmnopqrst", 19, 1, "abcdefghijklmnopqrst", 19, 1, 0);
+    test("abcdefghijklmnopqrst", 19, 1, "abcdefghijklmnopqrst", 19, 2, 0);
+    test("abcdefghijklmnopqrst", 19, 1, "abcdefghijklmnopqrst", 20, 0, 1);
+    test("abcdefghijklmnopqrst", 19, 1, "abcdefghijklmnopqrst", 20, 1, 1);
+    test("abcdefghijklmnopqrst", 19, 1, "abcdefghijklmnopqrst", 21, 0, 0);
+    test("abcdefghijklmnopqrst", 19, 2, "", 0, 0, 1);
+    test("abcdefghijklmnopqrst", 19, 2, "", 0, 1, 1);
+    test("abcdefghijklmnopqrst", 19, 2, "", 1, 0, 0);
+    test("abcdefghijklmnopqrst", 19, 2, "abcde", 0, 0, 1);
+    test("abcdefghijklmnopqrst", 19, 2, "abcde", 0, 1, 19);
+    test("abcdefghijklmnopqrst", 19, 2, "abcde", 0, 2, 19);
+    test("abcdefghijklmnopqrst", 19, 2, "abcde", 0, 4, 19);
+    test("abcdefghijklmnopqrst", 19, 2, "abcde", 0, 5, 19);
+    test("abcdefghijklmnopqrst", 19, 2, "abcde", 0, 6, 19);
+    test("abcdefghijklmnopqrst", 19, 2, "abcde", 1, 0, 1);
+    test("abcdefghijklmnopqrst", 19, 2, "abcde", 1, 1, 18);
+    test("abcdefghijklmnopqrst", 19, 2, "abcde", 1, 2, 18);
+    test("abcdefghijklmnopqrst", 19, 2, "abcde", 1, 3, 18);
+    test("abcdefghijklmnopqrst", 19, 2, "abcde", 1, 4, 18);
+    test("abcdefghijklmnopqrst", 19, 2, "abcde", 1, 5, 18);
+    test("abcdefghijklmnopqrst", 19, 2, "abcde", 2, 0, 1);
+    test("abcdefghijklmnopqrst", 19, 2, "abcde", 2, 1, 17);
+    test("abcdefghijklmnopqrst", 19, 2, "abcde", 2, 2, 17);
+    test("abcdefghijklmnopqrst", 19, 2, "abcde", 2, 3, 17);
+    test("abcdefghijklmnopqrst", 19, 2, "abcde", 2, 4, 17);
+}
+
+void test52()
+{
+    test("abcdefghijklmnopqrst", 19, 2, "abcde", 4, 0, 1);
+    test("abcdefghijklmnopqrst", 19, 2, "abcde", 4, 1, 15);
+    test("abcdefghijklmnopqrst", 19, 2, "abcde", 4, 2, 15);
+    test("abcdefghijklmnopqrst", 19, 2, "abcde", 5, 0, 1);
+    test("abcdefghijklmnopqrst", 19, 2, "abcde", 5, 1, 1);
+    test("abcdefghijklmnopqrst", 19, 2, "abcde", 6, 0, 0);
+    test("abcdefghijklmnopqrst", 19, 2, "abcdefghij", 0, 0, 1);
+    test("abcdefghijklmnopqrst", 19, 2, "abcdefghij", 0, 1, 19);
+    test("abcdefghijklmnopqrst", 19, 2, "abcdefghij", 0, 5, 19);
+    test("abcdefghijklmnopqrst", 19, 2, "abcdefghij", 0, 9, 19);
+    test("abcdefghijklmnopqrst", 19, 2, "abcdefghij", 0, 10, 19);
+    test("abcdefghijklmnopqrst", 19, 2, "abcdefghij", 0, 11, 19);
+    test("abcdefghijklmnopqrst", 19, 2, "abcdefghij", 1, 0, 1);
+    test("abcdefghijklmnopqrst", 19, 2, "abcdefghij", 1, 1, 18);
+    test("abcdefghijklmnopqrst", 19, 2, "abcdefghij", 1, 4, 18);
+    test("abcdefghijklmnopqrst", 19, 2, "abcdefghij", 1, 8, 18);
+    test("abcdefghijklmnopqrst", 19, 2, "abcdefghij", 1, 9, 18);
+    test("abcdefghijklmnopqrst", 19, 2, "abcdefghij", 1, 10, 18);
+    test("abcdefghijklmnopqrst", 19, 2, "abcdefghij", 5, 0, 1);
+    test("abcdefghijklmnopqrst", 19, 2, "abcdefghij", 5, 1, 14);
+    test("abcdefghijklmnopqrst", 19, 2, "abcdefghij", 5, 2, 14);
+    test("abcdefghijklmnopqrst", 19, 2, "abcdefghij", 5, 4, 14);
+    test("abcdefghijklmnopqrst", 19, 2, "abcdefghij", 5, 5, 14);
+    test("abcdefghijklmnopqrst", 19, 2, "abcdefghij", 5, 6, 14);
+    test("abcdefghijklmnopqrst", 19, 2, "abcdefghij", 9, 0, 1);
+    test("abcdefghijklmnopqrst", 19, 2, "abcdefghij", 9, 1, 10);
+    test("abcdefghijklmnopqrst", 19, 2, "abcdefghij", 9, 2, 10);
+    test("abcdefghijklmnopqrst", 19, 2, "abcdefghij", 10, 0, 1);
+    test("abcdefghijklmnopqrst", 19, 2, "abcdefghij", 10, 1, 1);
+    test("abcdefghijklmnopqrst", 19, 2, "abcdefghij", 11, 0, 0);
+    test("abcdefghijklmnopqrst", 19, 2, "abcdefghijklmnopqrst", 0, 0, 1);
+    test("abcdefghijklmnopqrst", 19, 2, "abcdefghijklmnopqrst", 0, 1, 19);
+    test("abcdefghijklmnopqrst", 19, 2, "abcdefghijklmnopqrst", 0, 10, 19);
+    test("abcdefghijklmnopqrst", 19, 2, "abcdefghijklmnopqrst", 0, 19, 19);
+    test("abcdefghijklmnopqrst", 19, 2, "abcdefghijklmnopqrst", 0, 20, 19);
+    test("abcdefghijklmnopqrst", 19, 2, "abcdefghijklmnopqrst", 0, 21, 19);
+    test("abcdefghijklmnopqrst", 19, 2, "abcdefghijklmnopqrst", 1, 0, 1);
+    test("abcdefghijklmnopqrst", 19, 2, "abcdefghijklmnopqrst", 1, 1, 18);
+    test("abcdefghijklmnopqrst", 19, 2, "abcdefghijklmnopqrst", 1, 9, 18);
+    test("abcdefghijklmnopqrst", 19, 2, "abcdefghijklmnopqrst", 1, 18, 18);
+    test("abcdefghijklmnopqrst", 19, 2, "abcdefghijklmnopqrst", 1, 19, 18);
+    test("abcdefghijklmnopqrst", 19, 2, "abcdefghijklmnopqrst", 1, 20, 18);
+    test("abcdefghijklmnopqrst", 19, 2, "abcdefghijklmnopqrst", 10, 0, 1);
+    test("abcdefghijklmnopqrst", 19, 2, "abcdefghijklmnopqrst", 10, 1, 9);
+    test("abcdefghijklmnopqrst", 19, 2, "abcdefghijklmnopqrst", 10, 5, 9);
+    test("abcdefghijklmnopqrst", 19, 2, "abcdefghijklmnopqrst", 10, 9, 9);
+    test("abcdefghijklmnopqrst", 19, 2, "abcdefghijklmnopqrst", 10, 10, 9);
+    test("abcdefghijklmnopqrst", 19, 2, "abcdefghijklmnopqrst", 10, 11, 9);
+    test("abcdefghijklmnopqrst", 19, 2, "abcdefghijklmnopqrst", 19, 0, 1);
+    test("abcdefghijklmnopqrst", 19, 2, "abcdefghijklmnopqrst", 19, 1, 0);
+    test("abcdefghijklmnopqrst", 19, 2, "abcdefghijklmnopqrst", 19, 2, 0);
+    test("abcdefghijklmnopqrst", 19, 2, "abcdefghijklmnopqrst", 20, 0, 1);
+    test("abcdefghijklmnopqrst", 19, 2, "abcdefghijklmnopqrst", 20, 1, 1);
+    test("abcdefghijklmnopqrst", 19, 2, "abcdefghijklmnopqrst", 21, 0, 0);
+    test("abcdefghijklmnopqrst", 20, 0, "", 0, 0, 0);
+    test("abcdefghijklmnopqrst", 20, 0, "", 0, 1, 0);
+    test("abcdefghijklmnopqrst", 20, 0, "", 1, 0, 0);
+    test("abcdefghijklmnopqrst", 20, 0, "abcde", 0, 0, 0);
+    test("abcdefghijklmnopqrst", 20, 0, "abcde", 0, 1, -1);
+    test("abcdefghijklmnopqrst", 20, 0, "abcde", 0, 2, -2);
+    test("abcdefghijklmnopqrst", 20, 0, "abcde", 0, 4, -4);
+    test("abcdefghijklmnopqrst", 20, 0, "abcde", 0, 5, -5);
+    test("abcdefghijklmnopqrst", 20, 0, "abcde", 0, 6, -5);
+    test("abcdefghijklmnopqrst", 20, 0, "abcde", 1, 0, 0);
+    test("abcdefghijklmnopqrst", 20, 0, "abcde", 1, 1, -1);
+    test("abcdefghijklmnopqrst", 20, 0, "abcde", 1, 2, -2);
+    test("abcdefghijklmnopqrst", 20, 0, "abcde", 1, 3, -3);
+    test("abcdefghijklmnopqrst", 20, 0, "abcde", 1, 4, -4);
+    test("abcdefghijklmnopqrst", 20, 0, "abcde", 1, 5, -4);
+    test("abcdefghijklmnopqrst", 20, 0, "abcde", 2, 0, 0);
+    test("abcdefghijklmnopqrst", 20, 0, "abcde", 2, 1, -1);
+    test("abcdefghijklmnopqrst", 20, 0, "abcde", 2, 2, -2);
+    test("abcdefghijklmnopqrst", 20, 0, "abcde", 2, 3, -3);
+    test("abcdefghijklmnopqrst", 20, 0, "abcde", 2, 4, -3);
+    test("abcdefghijklmnopqrst", 20, 0, "abcde", 4, 0, 0);
+    test("abcdefghijklmnopqrst", 20, 0, "abcde", 4, 1, -1);
+    test("abcdefghijklmnopqrst", 20, 0, "abcde", 4, 2, -1);
+    test("abcdefghijklmnopqrst", 20, 0, "abcde", 5, 0, 0);
+    test("abcdefghijklmnopqrst", 20, 0, "abcde", 5, 1, 0);
+    test("abcdefghijklmnopqrst", 20, 0, "abcde", 6, 0, 0);
+    test("abcdefghijklmnopqrst", 20, 0, "abcdefghij", 0, 0, 0);
+    test("abcdefghijklmnopqrst", 20, 0, "abcdefghij", 0, 1, -1);
+    test("abcdefghijklmnopqrst", 20, 0, "abcdefghij", 0, 5, -5);
+    test("abcdefghijklmnopqrst", 20, 0, "abcdefghij", 0, 9, -9);
+    test("abcdefghijklmnopqrst", 20, 0, "abcdefghij", 0, 10, -10);
+    test("abcdefghijklmnopqrst", 20, 0, "abcdefghij", 0, 11, -10);
+    test("abcdefghijklmnopqrst", 20, 0, "abcdefghij", 1, 0, 0);
+    test("abcdefghijklmnopqrst", 20, 0, "abcdefghij", 1, 1, -1);
+    test("abcdefghijklmnopqrst", 20, 0, "abcdefghij", 1, 4, -4);
+    test("abcdefghijklmnopqrst", 20, 0, "abcdefghij", 1, 8, -8);
+    test("abcdefghijklmnopqrst", 20, 0, "abcdefghij", 1, 9, -9);
+    test("abcdefghijklmnopqrst", 20, 0, "abcdefghij", 1, 10, -9);
+    test("abcdefghijklmnopqrst", 20, 0, "abcdefghij", 5, 0, 0);
+    test("abcdefghijklmnopqrst", 20, 0, "abcdefghij", 5, 1, -1);
+    test("abcdefghijklmnopqrst", 20, 0, "abcdefghij", 5, 2, -2);
+    test("abcdefghijklmnopqrst", 20, 0, "abcdefghij", 5, 4, -4);
+    test("abcdefghijklmnopqrst", 20, 0, "abcdefghij", 5, 5, -5);
+    test("abcdefghijklmnopqrst", 20, 0, "abcdefghij", 5, 6, -5);
+    test("abcdefghijklmnopqrst", 20, 0, "abcdefghij", 9, 0, 0);
+    test("abcdefghijklmnopqrst", 20, 0, "abcdefghij", 9, 1, -1);
+}
+
+void test53()
+{
+    test("abcdefghijklmnopqrst", 20, 0, "abcdefghij", 9, 2, -1);
+    test("abcdefghijklmnopqrst", 20, 0, "abcdefghij", 10, 0, 0);
+    test("abcdefghijklmnopqrst", 20, 0, "abcdefghij", 10, 1, 0);
+    test("abcdefghijklmnopqrst", 20, 0, "abcdefghij", 11, 0, 0);
+    test("abcdefghijklmnopqrst", 20, 0, "abcdefghijklmnopqrst", 0, 0, 0);
+    test("abcdefghijklmnopqrst", 20, 0, "abcdefghijklmnopqrst", 0, 1, -1);
+    test("abcdefghijklmnopqrst", 20, 0, "abcdefghijklmnopqrst", 0, 10, -10);
+    test("abcdefghijklmnopqrst", 20, 0, "abcdefghijklmnopqrst", 0, 19, -19);
+    test("abcdefghijklmnopqrst", 20, 0, "abcdefghijklmnopqrst", 0, 20, -20);
+    test("abcdefghijklmnopqrst", 20, 0, "abcdefghijklmnopqrst", 0, 21, -20);
+    test("abcdefghijklmnopqrst", 20, 0, "abcdefghijklmnopqrst", 1, 0, 0);
+    test("abcdefghijklmnopqrst", 20, 0, "abcdefghijklmnopqrst", 1, 1, -1);
+    test("abcdefghijklmnopqrst", 20, 0, "abcdefghijklmnopqrst", 1, 9, -9);
+    test("abcdefghijklmnopqrst", 20, 0, "abcdefghijklmnopqrst", 1, 18, -18);
+    test("abcdefghijklmnopqrst", 20, 0, "abcdefghijklmnopqrst", 1, 19, -19);
+    test("abcdefghijklmnopqrst", 20, 0, "abcdefghijklmnopqrst", 1, 20, -19);
+    test("abcdefghijklmnopqrst", 20, 0, "abcdefghijklmnopqrst", 10, 0, 0);
+    test("abcdefghijklmnopqrst", 20, 0, "abcdefghijklmnopqrst", 10, 1, -1);
+    test("abcdefghijklmnopqrst", 20, 0, "abcdefghijklmnopqrst", 10, 5, -5);
+    test("abcdefghijklmnopqrst", 20, 0, "abcdefghijklmnopqrst", 10, 9, -9);
+    test("abcdefghijklmnopqrst", 20, 0, "abcdefghijklmnopqrst", 10, 10, -10);
+    test("abcdefghijklmnopqrst", 20, 0, "abcdefghijklmnopqrst", 10, 11, -10);
+    test("abcdefghijklmnopqrst", 20, 0, "abcdefghijklmnopqrst", 19, 0, 0);
+    test("abcdefghijklmnopqrst", 20, 0, "abcdefghijklmnopqrst", 19, 1, -1);
+    test("abcdefghijklmnopqrst", 20, 0, "abcdefghijklmnopqrst", 19, 2, -1);
+    test("abcdefghijklmnopqrst", 20, 0, "abcdefghijklmnopqrst", 20, 0, 0);
+    test("abcdefghijklmnopqrst", 20, 0, "abcdefghijklmnopqrst", 20, 1, 0);
+    test("abcdefghijklmnopqrst", 20, 0, "abcdefghijklmnopqrst", 21, 0, 0);
+    test("abcdefghijklmnopqrst", 20, 1, "", 0, 0, 0);
+    test("abcdefghijklmnopqrst", 20, 1, "", 0, 1, 0);
+    test("abcdefghijklmnopqrst", 20, 1, "", 1, 0, 0);
+    test("abcdefghijklmnopqrst", 20, 1, "abcde", 0, 0, 0);
+    test("abcdefghijklmnopqrst", 20, 1, "abcde", 0, 1, -1);
+    test("abcdefghijklmnopqrst", 20, 1, "abcde", 0, 2, -2);
+    test("abcdefghijklmnopqrst", 20, 1, "abcde", 0, 4, -4);
+    test("abcdefghijklmnopqrst", 20, 1, "abcde", 0, 5, -5);
+    test("abcdefghijklmnopqrst", 20, 1, "abcde", 0, 6, -5);
+    test("abcdefghijklmnopqrst", 20, 1, "abcde", 1, 0, 0);
+    test("abcdefghijklmnopqrst", 20, 1, "abcde", 1, 1, -1);
+    test("abcdefghijklmnopqrst", 20, 1, "abcde", 1, 2, -2);
+    test("abcdefghijklmnopqrst", 20, 1, "abcde", 1, 3, -3);
+    test("abcdefghijklmnopqrst", 20, 1, "abcde", 1, 4, -4);
+    test("abcdefghijklmnopqrst", 20, 1, "abcde", 1, 5, -4);
+    test("abcdefghijklmnopqrst", 20, 1, "abcde", 2, 0, 0);
+    test("abcdefghijklmnopqrst", 20, 1, "abcde", 2, 1, -1);
+    test("abcdefghijklmnopqrst", 20, 1, "abcde", 2, 2, -2);
+    test("abcdefghijklmnopqrst", 20, 1, "abcde", 2, 3, -3);
+    test("abcdefghijklmnopqrst", 20, 1, "abcde", 2, 4, -3);
+    test("abcdefghijklmnopqrst", 20, 1, "abcde", 4, 0, 0);
+    test("abcdefghijklmnopqrst", 20, 1, "abcde", 4, 1, -1);
+    test("abcdefghijklmnopqrst", 20, 1, "abcde", 4, 2, -1);
+    test("abcdefghijklmnopqrst", 20, 1, "abcde", 5, 0, 0);
+    test("abcdefghijklmnopqrst", 20, 1, "abcde", 5, 1, 0);
+    test("abcdefghijklmnopqrst", 20, 1, "abcde", 6, 0, 0);
+    test("abcdefghijklmnopqrst", 20, 1, "abcdefghij", 0, 0, 0);
+    test("abcdefghijklmnopqrst", 20, 1, "abcdefghij", 0, 1, -1);
+    test("abcdefghijklmnopqrst", 20, 1, "abcdefghij", 0, 5, -5);
+    test("abcdefghijklmnopqrst", 20, 1, "abcdefghij", 0, 9, -9);
+    test("abcdefghijklmnopqrst", 20, 1, "abcdefghij", 0, 10, -10);
+    test("abcdefghijklmnopqrst", 20, 1, "abcdefghij", 0, 11, -10);
+    test("abcdefghijklmnopqrst", 20, 1, "abcdefghij", 1, 0, 0);
+    test("abcdefghijklmnopqrst", 20, 1, "abcdefghij", 1, 1, -1);
+    test("abcdefghijklmnopqrst", 20, 1, "abcdefghij", 1, 4, -4);
+    test("abcdefghijklmnopqrst", 20, 1, "abcdefghij", 1, 8, -8);
+    test("abcdefghijklmnopqrst", 20, 1, "abcdefghij", 1, 9, -9);
+    test("abcdefghijklmnopqrst", 20, 1, "abcdefghij", 1, 10, -9);
+    test("abcdefghijklmnopqrst", 20, 1, "abcdefghij", 5, 0, 0);
+    test("abcdefghijklmnopqrst", 20, 1, "abcdefghij", 5, 1, -1);
+    test("abcdefghijklmnopqrst", 20, 1, "abcdefghij", 5, 2, -2);
+    test("abcdefghijklmnopqrst", 20, 1, "abcdefghij", 5, 4, -4);
+    test("abcdefghijklmnopqrst", 20, 1, "abcdefghij", 5, 5, -5);
+    test("abcdefghijklmnopqrst", 20, 1, "abcdefghij", 5, 6, -5);
+    test("abcdefghijklmnopqrst", 20, 1, "abcdefghij", 9, 0, 0);
+    test("abcdefghijklmnopqrst", 20, 1, "abcdefghij", 9, 1, -1);
+    test("abcdefghijklmnopqrst", 20, 1, "abcdefghij", 9, 2, -1);
+    test("abcdefghijklmnopqrst", 20, 1, "abcdefghij", 10, 0, 0);
+    test("abcdefghijklmnopqrst", 20, 1, "abcdefghij", 10, 1, 0);
+    test("abcdefghijklmnopqrst", 20, 1, "abcdefghij", 11, 0, 0);
+    test("abcdefghijklmnopqrst", 20, 1, "abcdefghijklmnopqrst", 0, 0, 0);
+    test("abcdefghijklmnopqrst", 20, 1, "abcdefghijklmnopqrst", 0, 1, -1);
+    test("abcdefghijklmnopqrst", 20, 1, "abcdefghijklmnopqrst", 0, 10, -10);
+    test("abcdefghijklmnopqrst", 20, 1, "abcdefghijklmnopqrst", 0, 19, -19);
+    test("abcdefghijklmnopqrst", 20, 1, "abcdefghijklmnopqrst", 0, 20, -20);
+    test("abcdefghijklmnopqrst", 20, 1, "abcdefghijklmnopqrst", 0, 21, -20);
+    test("abcdefghijklmnopqrst", 20, 1, "abcdefghijklmnopqrst", 1, 0, 0);
+    test("abcdefghijklmnopqrst", 20, 1, "abcdefghijklmnopqrst", 1, 1, -1);
+    test("abcdefghijklmnopqrst", 20, 1, "abcdefghijklmnopqrst", 1, 9, -9);
+    test("abcdefghijklmnopqrst", 20, 1, "abcdefghijklmnopqrst", 1, 18, -18);
+    test("abcdefghijklmnopqrst", 20, 1, "abcdefghijklmnopqrst", 1, 19, -19);
+    test("abcdefghijklmnopqrst", 20, 1, "abcdefghijklmnopqrst", 1, 20, -19);
+    test("abcdefghijklmnopqrst", 20, 1, "abcdefghijklmnopqrst", 10, 0, 0);
+    test("abcdefghijklmnopqrst", 20, 1, "abcdefghijklmnopqrst", 10, 1, -1);
+    test("abcdefghijklmnopqrst", 20, 1, "abcdefghijklmnopqrst", 10, 5, -5);
+    test("abcdefghijklmnopqrst", 20, 1, "abcdefghijklmnopqrst", 10, 9, -9);
+    test("abcdefghijklmnopqrst", 20, 1, "abcdefghijklmnopqrst", 10, 10, -10);
+    test("abcdefghijklmnopqrst", 20, 1, "abcdefghijklmnopqrst", 10, 11, -10);
+    test("abcdefghijklmnopqrst", 20, 1, "abcdefghijklmnopqrst", 19, 0, 0);
+    test("abcdefghijklmnopqrst", 20, 1, "abcdefghijklmnopqrst", 19, 1, -1);
+    test("abcdefghijklmnopqrst", 20, 1, "abcdefghijklmnopqrst", 19, 2, -1);
+    test("abcdefghijklmnopqrst", 20, 1, "abcdefghijklmnopqrst", 20, 0, 0);
+}
+
+void test54()
+{
+    test("abcdefghijklmnopqrst", 20, 1, "abcdefghijklmnopqrst", 20, 1, 0);
+    test("abcdefghijklmnopqrst", 20, 1, "abcdefghijklmnopqrst", 21, 0, 0);
+    test("abcdefghijklmnopqrst", 21, 0, "", 0, 0, 0);
+    test("abcdefghijklmnopqrst", 21, 0, "", 0, 1, 0);
+    test("abcdefghijklmnopqrst", 21, 0, "", 1, 0, 0);
+    test("abcdefghijklmnopqrst", 21, 0, "abcde", 0, 0, 0);
+    test("abcdefghijklmnopqrst", 21, 0, "abcde", 0, 1, 0);
+    test("abcdefghijklmnopqrst", 21, 0, "abcde", 0, 2, 0);
+    test("abcdefghijklmnopqrst", 21, 0, "abcde", 0, 4, 0);
+    test("abcdefghijklmnopqrst", 21, 0, "abcde", 0, 5, 0);
+    test("abcdefghijklmnopqrst", 21, 0, "abcde", 0, 6, 0);
+    test("abcdefghijklmnopqrst", 21, 0, "abcde", 1, 0, 0);
+    test("abcdefghijklmnopqrst", 21, 0, "abcde", 1, 1, 0);
+    test("abcdefghijklmnopqrst", 21, 0, "abcde", 1, 2, 0);
+    test("abcdefghijklmnopqrst", 21, 0, "abcde", 1, 3, 0);
+    test("abcdefghijklmnopqrst", 21, 0, "abcde", 1, 4, 0);
+    test("abcdefghijklmnopqrst", 21, 0, "abcde", 1, 5, 0);
+    test("abcdefghijklmnopqrst", 21, 0, "abcde", 2, 0, 0);
+    test("abcdefghijklmnopqrst", 21, 0, "abcde", 2, 1, 0);
+    test("abcdefghijklmnopqrst", 21, 0, "abcde", 2, 2, 0);
+    test("abcdefghijklmnopqrst", 21, 0, "abcde", 2, 3, 0);
+    test("abcdefghijklmnopqrst", 21, 0, "abcde", 2, 4, 0);
+    test("abcdefghijklmnopqrst", 21, 0, "abcde", 4, 0, 0);
+    test("abcdefghijklmnopqrst", 21, 0, "abcde", 4, 1, 0);
+    test("abcdefghijklmnopqrst", 21, 0, "abcde", 4, 2, 0);
+    test("abcdefghijklmnopqrst", 21, 0, "abcde", 5, 0, 0);
+    test("abcdefghijklmnopqrst", 21, 0, "abcde", 5, 1, 0);
+    test("abcdefghijklmnopqrst", 21, 0, "abcde", 6, 0, 0);
+    test("abcdefghijklmnopqrst", 21, 0, "abcdefghij", 0, 0, 0);
+    test("abcdefghijklmnopqrst", 21, 0, "abcdefghij", 0, 1, 0);
+    test("abcdefghijklmnopqrst", 21, 0, "abcdefghij", 0, 5, 0);
+    test("abcdefghijklmnopqrst", 21, 0, "abcdefghij", 0, 9, 0);
+    test("abcdefghijklmnopqrst", 21, 0, "abcdefghij", 0, 10, 0);
+    test("abcdefghijklmnopqrst", 21, 0, "abcdefghij", 0, 11, 0);
+    test("abcdefghijklmnopqrst", 21, 0, "abcdefghij", 1, 0, 0);
+    test("abcdefghijklmnopqrst", 21, 0, "abcdefghij", 1, 1, 0);
+    test("abcdefghijklmnopqrst", 21, 0, "abcdefghij", 1, 4, 0);
+    test("abcdefghijklmnopqrst", 21, 0, "abcdefghij", 1, 8, 0);
+    test("abcdefghijklmnopqrst", 21, 0, "abcdefghij", 1, 9, 0);
+    test("abcdefghijklmnopqrst", 21, 0, "abcdefghij", 1, 10, 0);
+    test("abcdefghijklmnopqrst", 21, 0, "abcdefghij", 5, 0, 0);
+    test("abcdefghijklmnopqrst", 21, 0, "abcdefghij", 5, 1, 0);
+    test("abcdefghijklmnopqrst", 21, 0, "abcdefghij", 5, 2, 0);
+    test("abcdefghijklmnopqrst", 21, 0, "abcdefghij", 5, 4, 0);
+    test("abcdefghijklmnopqrst", 21, 0, "abcdefghij", 5, 5, 0);
+    test("abcdefghijklmnopqrst", 21, 0, "abcdefghij", 5, 6, 0);
+    test("abcdefghijklmnopqrst", 21, 0, "abcdefghij", 9, 0, 0);
+    test("abcdefghijklmnopqrst", 21, 0, "abcdefghij", 9, 1, 0);
+    test("abcdefghijklmnopqrst", 21, 0, "abcdefghij", 9, 2, 0);
+    test("abcdefghijklmnopqrst", 21, 0, "abcdefghij", 10, 0, 0);
+    test("abcdefghijklmnopqrst", 21, 0, "abcdefghij", 10, 1, 0);
+    test("abcdefghijklmnopqrst", 21, 0, "abcdefghij", 11, 0, 0);
+    test("abcdefghijklmnopqrst", 21, 0, "abcdefghijklmnopqrst", 0, 0, 0);
+    test("abcdefghijklmnopqrst", 21, 0, "abcdefghijklmnopqrst", 0, 1, 0);
+    test("abcdefghijklmnopqrst", 21, 0, "abcdefghijklmnopqrst", 0, 10, 0);
+    test("abcdefghijklmnopqrst", 21, 0, "abcdefghijklmnopqrst", 0, 19, 0);
+    test("abcdefghijklmnopqrst", 21, 0, "abcdefghijklmnopqrst", 0, 20, 0);
+    test("abcdefghijklmnopqrst", 21, 0, "abcdefghijklmnopqrst", 0, 21, 0);
+    test("abcdefghijklmnopqrst", 21, 0, "abcdefghijklmnopqrst", 1, 0, 0);
+    test("abcdefghijklmnopqrst", 21, 0, "abcdefghijklmnopqrst", 1, 1, 0);
+    test("abcdefghijklmnopqrst", 21, 0, "abcdefghijklmnopqrst", 1, 9, 0);
+    test("abcdefghijklmnopqrst", 21, 0, "abcdefghijklmnopqrst", 1, 18, 0);
+    test("abcdefghijklmnopqrst", 21, 0, "abcdefghijklmnopqrst", 1, 19, 0);
+    test("abcdefghijklmnopqrst", 21, 0, "abcdefghijklmnopqrst", 1, 20, 0);
+    test("abcdefghijklmnopqrst", 21, 0, "abcdefghijklmnopqrst", 10, 0, 0);
+    test("abcdefghijklmnopqrst", 21, 0, "abcdefghijklmnopqrst", 10, 1, 0);
+    test("abcdefghijklmnopqrst", 21, 0, "abcdefghijklmnopqrst", 10, 5, 0);
+    test("abcdefghijklmnopqrst", 21, 0, "abcdefghijklmnopqrst", 10, 9, 0);
+    test("abcdefghijklmnopqrst", 21, 0, "abcdefghijklmnopqrst", 10, 10, 0);
+    test("abcdefghijklmnopqrst", 21, 0, "abcdefghijklmnopqrst", 10, 11, 0);
+    test("abcdefghijklmnopqrst", 21, 0, "abcdefghijklmnopqrst", 19, 0, 0);
+    test("abcdefghijklmnopqrst", 21, 0, "abcdefghijklmnopqrst", 19, 1, 0);
+    test("abcdefghijklmnopqrst", 21, 0, "abcdefghijklmnopqrst", 19, 2, 0);
+    test("abcdefghijklmnopqrst", 21, 0, "abcdefghijklmnopqrst", 20, 0, 0);
+    test("abcdefghijklmnopqrst", 21, 0, "abcdefghijklmnopqrst", 20, 1, 0);
+    test("abcdefghijklmnopqrst", 21, 0, "abcdefghijklmnopqrst", 21, 0, 0);
+}
+
+
+int main () {
+    test0();
+    test1();
+    test2();
+    test3();
+    test4();
+    test5();
+    test6();
+    test7();
+    test8();
+    test9();
+    test10();
+    test11();
+    test12();
+    test13();
+    test14();
+    test15();
+    test16();
+    test17();
+    test18();
+    test19();
+    test20();
+    test21();
+    test22();
+    test23();
+    test24();
+    test25();
+    test26();
+    test27();
+    test28();
+    test29();
+    test30();
+    test31();
+    test32();
+    test33();
+    test34();
+    test35();
+    test36();
+    test37();
+    test38();
+    test39();
+    test40();
+    test41();
+    test42();
+    test43();
+    test44();
+    test45();
+    test46();
+    test47();
+    test48();
+    test49();
+    test50();
+    test51();
+    test52();
+    test53();
+    test54();
+
+    
+    {
+    test("abcde", 5, 1, "", 0, 0, 0);
+    test("abcde", 2, 4, "", 0, 0, 3);
+    test("abcde", 2, 4, "abcde", 3, 4, -2);
+    test("ABCde", 2, 4, "abcde", 2, 4, -1);
+    }
+
+    {
+    test(L"abcde", 5, 1, L"", 0, 0, 0);
+    test(L"abcde", 2, 4, L"", 0, 0, 3);
+    test(L"abcde", 2, 4, L"abcde", 3, 4, -2);
+    test(L"ABCde", 2, 4, L"abcde", 2, 4, -1);
+    }
+
+#if __cplusplus >= 201103L
+    {
+    test(u"abcde", 5, 1, u"", 0, 0, 0);
+    test(u"abcde", 2, 4, u"", 0, 0, 3);
+    test(u"abcde", 2, 4, u"abcde", 3, 4, -2);
+    test(u"ABCde", 2, 4, u"abcde", 2, 4, -1);
+    }
+
+    {
+    test(U"abcde", 5, 1, U"", 0, 0, 0);
+    test(U"abcde", 2, 4, U"", 0, 0, 3);
+    test(U"abcde", 2, 4, U"abcde", 3, 4, -2);
+    test(U"ABCde", 2, 4, U"abcde", 2, 4, -1);
+    }
+#endif
+
+#if _LIBCPP_STD_VER > 11
+    {
+    typedef std::experimental::basic_string_view<char, constexpr_char_traits<char>> SV;
+    constexpr SV  sv1 { "abcde", 5 };
+    static_assert ( sv1.compare(5, 1, "", 0, 0) == 0, "" );
+    static_assert ( sv1.compare(2, 4, "", 0, 0) == 1, "" );
+    static_assert ( sv1.compare(2, 4, "abcde", 3, 4) == -1, "" );
+    }
+#endif
+}

Added: libcxx/trunk/test/std/experimental/string.view/string.view.ops/compare.sv.pass.cpp
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/test/std/experimental/string.view/string.view.ops/compare.sv.pass.cpp?rev=224658&view=auto
==============================================================================
--- libcxx/trunk/test/std/experimental/string.view/string.view.ops/compare.sv.pass.cpp (added)
+++ libcxx/trunk/test/std/experimental/string.view/string.view.ops/compare.sv.pass.cpp Fri Dec 19 19:40:03 2014
@@ -0,0 +1,121 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+
+// <string_view>
+// constexpr int compare(basic_string_view str) const noexcept;
+
+#include <experimental/string_view>
+#include <cassert>
+
+#include "constexpr_char_traits.hpp"
+
+int sign ( int x ) { return x > 0 ? 1 : ( x < 0 ? -1 : 0 ); }
+
+template<typename CharT>
+void test1 ( std::experimental::basic_string_view<CharT> sv1, 
+            std::experimental::basic_string_view<CharT> sv2, int expected ) {
+    assert ( sign( sv1.compare(sv2)) == sign(expected));
+}
+
+
+template<typename CharT>
+void test ( const CharT *s1, const CharT  *s2, int expected ) {
+    typedef std::experimental::basic_string_view<CharT> string_view_t;
+    
+    string_view_t sv1 ( s1 );
+    string_view_t sv2 ( s2 );
+    test1(sv1, sv2, expected);
+}
+
+int main () {
+
+    test("",                     "", 0);
+    test("",                     "abcde", -5);
+    test("",                     "abcdefghij", -10);
+    test("",                     "abcdefghijklmnopqrst", -20);
+    test("abcde",                "", 5);
+    test("abcde",                "abcde", 0);
+    test("abcde",                "abcdefghij", -5);
+    test("abcde",                "abcdefghijklmnopqrst", -15);
+    test("abcdefghij",           "", 10);
+    test("abcdefghij",           "abcde", 5);
+    test("abcdefghij",           "abcdefghij", 0);
+    test("abcdefghij",           "abcdefghijklmnopqrst", -10);
+    test("abcdefghijklmnopqrst", "", 20);
+    test("abcdefghijklmnopqrst", "abcde", 15);
+    test("abcdefghijklmnopqrst", "abcdefghij", 10);
+    test("abcdefghijklmnopqrst", "abcdefghijklmnopqrst", 0);
+
+    test(L"",                     L"", 0);
+    test(L"",                     L"abcde", -5);
+    test(L"",                     L"abcdefghij", -10);
+    test(L"",                     L"abcdefghijklmnopqrst", -20);
+    test(L"abcde",                L"", 5);
+    test(L"abcde",                L"abcde", 0);
+    test(L"abcde",                L"abcdefghij", -5);
+    test(L"abcde",                L"abcdefghijklmnopqrst", -15);
+    test(L"abcdefghij",           L"", 10);
+    test(L"abcdefghij",           L"abcde", 5);
+    test(L"abcdefghij",           L"abcdefghij", 0);
+    test(L"abcdefghij",           L"abcdefghijklmnopqrst", -10);
+    test(L"abcdefghijklmnopqrst", L"", 20);
+    test(L"abcdefghijklmnopqrst", L"abcde", 15);
+    test(L"abcdefghijklmnopqrst", L"abcdefghij", 10);
+    test(L"abcdefghijklmnopqrst", L"abcdefghijklmnopqrst", 0);
+
+#if __cplusplus >= 201103L
+    test(u"",                     u"", 0);
+    test(u"",                     u"abcde", -5);
+    test(u"",                     u"abcdefghij", -10);
+    test(u"",                     u"abcdefghijklmnopqrst", -20);
+    test(u"abcde",                u"", 5);
+    test(u"abcde",                u"abcde", 0);
+    test(u"abcde",                u"abcdefghij", -5);
+    test(u"abcde",                u"abcdefghijklmnopqrst", -15);
+    test(u"abcdefghij",           u"", 10);
+    test(u"abcdefghij",           u"abcde", 5);
+    test(u"abcdefghij",           u"abcdefghij", 0);
+    test(u"abcdefghij",           u"abcdefghijklmnopqrst", -10);
+    test(u"abcdefghijklmnopqrst", u"", 20);
+    test(u"abcdefghijklmnopqrst", u"abcde", 15);
+    test(u"abcdefghijklmnopqrst", u"abcdefghij", 10);
+    test(u"abcdefghijklmnopqrst", u"abcdefghijklmnopqrst", 0);
+
+    test(U"",                     U"", 0);
+    test(U"",                     U"abcde", -5);
+    test(U"",                     U"abcdefghij", -10);
+    test(U"",                     U"abcdefghijklmnopqrst", -20);
+    test(U"abcde",                U"", 5);
+    test(U"abcde",                U"abcde", 0);
+    test(U"abcde",                U"abcdefghij", -5);
+    test(U"abcde",                U"abcdefghijklmnopqrst", -15);
+    test(U"abcdefghij",           U"", 10);
+    test(U"abcdefghij",           U"abcde", 5);
+    test(U"abcdefghij",           U"abcdefghij", 0);
+    test(U"abcdefghij",           U"abcdefghijklmnopqrst", -10);
+    test(U"abcdefghijklmnopqrst", U"", 20);
+    test(U"abcdefghijklmnopqrst", U"abcde", 15);
+    test(U"abcdefghijklmnopqrst", U"abcdefghij", 10);
+    test(U"abcdefghijklmnopqrst", U"abcdefghijklmnopqrst", 0);
+#endif
+    
+#if _LIBCPP_STD_VER > 11
+    {
+    typedef std::experimental::basic_string_view<char, constexpr_char_traits<char>> SV;
+    constexpr SV  sv1 { "abcde", 5 };
+    constexpr SV  sv2 { "abcde", 5 };
+    constexpr SV  sv3 { "edcba0", 6 };
+    static_assert ( sv1.compare(sv2) == 0, "" );
+    static_assert ( sv2.compare(sv1) == 0, "" );
+    static_assert ( sv3.compare(sv2)  > 0, "" );
+    static_assert ( sv2.compare(sv3)  < 0, "" );
+    }
+#endif    
+}

Added: libcxx/trunk/test/std/experimental/string.view/string.view.ops/copy.pass.cpp
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/test/std/experimental/string.view/string.view.ops/copy.pass.cpp?rev=224658&view=auto
==============================================================================
--- libcxx/trunk/test/std/experimental/string.view/string.view.ops/copy.pass.cpp (added)
+++ libcxx/trunk/test/std/experimental/string.view/string.view.ops/copy.pass.cpp Fri Dec 19 19:40:03 2014
@@ -0,0 +1,92 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+
+// <string_view>
+
+// size_type copy(charT* s, size_type n, size_type pos = 0) const;
+
+// Throws: out_of_range if pos > size().
+// Remarks: Let rlen be the smaller of n and size() - pos.
+// Requires: [s, s+rlen) is a valid range.
+// Effects: Equivalent to std::copy_n(begin() + pos, rlen, s).
+// Returns: rlen.
+
+
+#include <experimental/string_view>
+#include <cassert>
+
+template<typename CharT>
+void test1 ( std::experimental::basic_string_view<CharT> sv, size_t n, size_t pos ) {
+    const size_t rlen = std::min ( n, sv.size() - pos );
+
+    CharT *dest1 = new CharT [rlen + 1];    dest1[rlen] = 0;
+    CharT *dest2 = new CharT [rlen + 1];    dest2[rlen] = 0;
+    
+    try {
+        sv.copy(dest1, n, pos);
+        std::copy_n(sv.begin() + pos, rlen, dest2);
+
+        for ( size_t i = 0; i <= rlen; ++i )
+            assert ( dest1[i] == dest2[i] );
+        }
+    catch ( const std::out_of_range & ) { assert ( pos > sv.size()); }
+    delete [] dest1;
+    delete [] dest2;    
+}
+
+
+template<typename CharT>
+void test ( const CharT *s ) {
+    typedef std::experimental::basic_string_view<CharT> string_view_t;
+    
+    string_view_t sv1 ( s );
+
+    test1(sv1,  0, 0);
+    test1(sv1,  1, 0);
+    test1(sv1, 20, 0);
+    test1(sv1, sv1.size(), 0);
+    test1(sv1, 20, string_view_t::npos);
+    
+    test1(sv1,   0, 3);
+    test1(sv1,   2, 3);
+    test1(sv1, 100, 3);
+    test1(sv1, 100, string_view_t::npos);
+
+    test1(sv1, sv1.size(), string_view_t::npos);
+
+    test1(sv1, sv1.size() + 1, 0);
+    test1(sv1, sv1.size() + 1, 1);
+    test1(sv1, sv1.size() + 1, string_view_t::npos);
+
+}
+
+int main () {
+    test ( "ABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDE" );
+    test ( "ABCDE");
+    test ( "a" );
+    test ( "" );
+
+    test ( L"ABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDE" );
+    test ( L"ABCDE" );
+    test ( L"a" );
+    test ( L"" );
+
+#if __cplusplus >= 201103L
+    test ( u"ABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDE" );
+    test ( u"ABCDE" );
+    test ( u"a" );
+    test ( u"" );
+
+    test ( U"ABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDE" );
+    test ( U"ABCDE" );
+    test ( U"a" );
+    test ( U"" );
+#endif
+}

Added: libcxx/trunk/test/std/experimental/string.view/string.view.ops/substr.pass.cpp
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/test/std/experimental/string.view/string.view.ops/substr.pass.cpp?rev=224658&view=auto
==============================================================================
--- libcxx/trunk/test/std/experimental/string.view/string.view.ops/substr.pass.cpp (added)
+++ libcxx/trunk/test/std/experimental/string.view/string.view.ops/substr.pass.cpp Fri Dec 19 19:40:03 2014
@@ -0,0 +1,107 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+
+// <string_view>
+
+// constexpr basic_string_view substr(size_type pos = 0, size_type n = npos) const;
+
+// Throws: out_of_range if pos > size().
+// Effects: Determines the effective length rlen of the string to reference as the smaller of n and size() - pos.
+// Returns: basic_string_view(data()+pos, rlen).
+
+#include <experimental/string_view>
+#include <cassert>
+
+template<typename CharT>
+void test1 ( std::experimental::basic_string_view<CharT> sv, size_t n, size_t pos ) {
+    try {
+        std::experimental::basic_string_view<CharT> sv1 = sv.substr(pos, n);
+        const size_t rlen = std::min ( n, sv.size() - pos );
+        assert ( sv1.size() == rlen );
+        for ( size_t i = 0; i <= rlen; ++i )
+            assert ( sv[pos+i] == sv1[i] );
+        }
+    catch ( const std::out_of_range & ) { assert ( pos > sv.size()); }
+}
+
+
+template<typename CharT>
+void test ( const CharT *s ) {
+    typedef std::experimental::basic_string_view<CharT> string_view_t;
+    
+    string_view_t sv1 ( s );
+
+    test1(sv1,  0, 0);
+    test1(sv1,  1, 0);
+    test1(sv1, 20, 0);
+    test1(sv1, sv1.size(), 0);
+    
+    test1(sv1,   0, 3);
+    test1(sv1,   2, 3);
+    test1(sv1, 100, 3);
+
+    test1(sv1, 0, string_view_t::npos);
+    test1(sv1, 2, string_view_t::npos);
+    test1(sv1, sv1.size(), string_view_t::npos);
+
+    test1(sv1, sv1.size() + 1, 0);
+    test1(sv1, sv1.size() + 1, 1);
+    test1(sv1, sv1.size() + 1, string_view_t::npos);
+}
+
+int main () {
+    test ( "ABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDE" );
+    test ( "ABCDE");
+    test ( "a" );
+    test ( "" );
+
+    test ( L"ABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDE" );
+    test ( L"ABCDE" );
+    test ( L"a" );
+    test ( L"" );
+
+#if __cplusplus >= 201103L
+    test ( u"ABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDE" );
+    test ( u"ABCDE" );
+    test ( u"a" );
+    test ( u"" );
+
+    test ( U"ABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDE" );
+    test ( U"ABCDE" );
+    test ( U"a" );
+    test ( U"" );
+#endif
+    
+#if _LIBCPP_STD_VER > 11
+    {
+    constexpr std::experimental::string_view sv1 { "ABCDE", 5 };
+
+    {
+    constexpr std::experimental::string_view sv2 = sv1.substr ( 0, 3 );
+    static_assert ( sv2.size() == 3, "" );
+    static_assert ( sv2[0] == 'A', "" );
+    static_assert ( sv2[1] == 'B', "" );
+    static_assert ( sv2[2] == 'C', "" );
+    }
+    
+    {
+    constexpr std::experimental::string_view sv2 = sv1.substr ( 3, 0 );
+    static_assert ( sv2.size() == 0, "" );
+    }
+
+    {
+    constexpr std::experimental::string_view sv2 = sv1.substr ( 3, 3 );
+    static_assert ( sv2.size() == 2, "" );
+    static_assert ( sv2[0] == 'D', "" );
+    static_assert ( sv2[1] == 'E', "" );
+    }
+    }
+#endif
+}
\ No newline at end of file

Added: libcxx/trunk/test/std/experimental/string.view/string.view.ops/to_string.pass.cpp
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/test/std/experimental/string.view/string.view.ops/to_string.pass.cpp?rev=224658&view=auto
==============================================================================
--- libcxx/trunk/test/std/experimental/string.view/string.view.ops/to_string.pass.cpp (added)
+++ libcxx/trunk/test/std/experimental/string.view/string.view.ops/to_string.pass.cpp Fri Dec 19 19:40:03 2014
@@ -0,0 +1,77 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+
+// <string_view>
+
+//  template<class Allocator>
+//  explicit operator basic_string<_CharT, _Traits, Allocator> () const;
+//  template<class _CharT, class _Traits = char_traits<_CharT>, class Allocator = allocator<_CharT> >
+//  basic_string<_CharT, _Traits, Allocator> to_string (
+//          basic_string_view<_CharT, _Traits> _sv, const Allocator& _a = Allocator()) const;
+
+#include <experimental/string_view>
+#include <cassert>
+#include "min_allocator.h"
+
+template<typename CharT>
+void test ( const CharT *s ) {
+    typedef std::basic_string<CharT> String ;
+    {
+    const std::experimental::basic_string_view<CharT> sv1 ( s );
+    String                                            str1 = (String) sv1;
+    
+    assert ( sv1.size() == str1.size ());
+    assert ( std::char_traits<CharT>::compare ( sv1.data(), str1.data(),  sv1.size()) == 0 );
+
+#if __cplusplus >= 201103L
+    auto str2 = sv1.to_string(min_allocator<CharT>());
+    assert ( sv1.size() == str2.size ());
+    assert ( std::char_traits<CharT>::compare ( sv1.data(), str2.data(), sv1.size()) == 0 );
+#endif
+    }
+
+    {
+    const std::experimental::basic_string_view<CharT> sv1;
+    String                                            str1 = (String) sv1;
+
+    assert ( sv1.size() == str1.size ());
+    assert ( std::char_traits<CharT>::compare ( sv1.data(), str1.data(), sv1.size()) == 0 );
+
+#if __cplusplus >= 201103L
+    auto str2 = sv1.to_string(min_allocator<CharT>());
+    assert ( sv1.size() == str2.size ());
+    assert ( std::char_traits<CharT>::compare ( sv1.data(), str2.data(), sv1.size()) == 0 );
+#endif
+    }
+}
+
+int main () {
+    test ( "ABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDE" );
+    test ( "ABCDE");
+    test ( "a" );
+    test ( "" );
+
+    test ( L"ABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDE" );
+    test ( L"ABCDE" );
+    test ( L"a" );
+    test ( L"" );
+
+#if __cplusplus >= 201103L
+    test ( u"ABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDE" );
+    test ( u"ABCDE" );
+    test ( u"a" );
+    test ( u"" );
+
+    test ( U"ABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDE" );
+    test ( U"ABCDE" );
+    test ( U"a" );
+    test ( U"" );
+#endif
+}

Added: libcxx/trunk/test/std/experimental/string.view/string.view.synop/nothing_to_do.pass.cpp
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/test/std/experimental/string.view/string.view.synop/nothing_to_do.pass.cpp?rev=224658&view=auto
==============================================================================
--- libcxx/trunk/test/std/experimental/string.view/string.view.synop/nothing_to_do.pass.cpp (added)
+++ libcxx/trunk/test/std/experimental/string.view/string.view.synop/nothing_to_do.pass.cpp Fri Dec 19 19:40:03 2014
@@ -0,0 +1,12 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#include <experimental/string_view>
+
+int main () {}

Added: libcxx/trunk/test/std/experimental/string.view/string.view.template/nothing_to_do.pass.cpp
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/test/std/experimental/string.view/string.view.template/nothing_to_do.pass.cpp?rev=224658&view=auto
==============================================================================
--- libcxx/trunk/test/std/experimental/string.view/string.view.template/nothing_to_do.pass.cpp (added)
+++ libcxx/trunk/test/std/experimental/string.view/string.view.template/nothing_to_do.pass.cpp Fri Dec 19 19:40:03 2014
@@ -0,0 +1,12 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#include <experimental/string_view>
+
+int main () {}

Added: libcxx/trunk/test/std/experimental/utilities/meta/meta.type.synop/includes.pass.cpp
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/test/std/experimental/utilities/meta/meta.type.synop/includes.pass.cpp?rev=224658&view=auto
==============================================================================
--- libcxx/trunk/test/std/experimental/utilities/meta/meta.type.synop/includes.pass.cpp (added)
+++ libcxx/trunk/test/std/experimental/utilities/meta/meta.type.synop/includes.pass.cpp Fri Dec 19 19:40:03 2014
@@ -0,0 +1,22 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <experimental/type_traits>
+
+#include <experimental/type_traits>
+
+#if _LIBCPP_STD_VER > 11
+# ifndef _LIBCPP_TYPE_TRAITS
+#   error "<experimental/type_traits> must include <type_traits>"
+# endif
+#endif
+
+int main()
+{
+}

Added: libcxx/trunk/test/std/experimental/utilities/meta/meta.type.synop/meta.rel.pass.cpp
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/test/std/experimental/utilities/meta/meta.type.synop/meta.rel.pass.cpp?rev=224658&view=auto
==============================================================================
--- libcxx/trunk/test/std/experimental/utilities/meta/meta.type.synop/meta.rel.pass.cpp (added)
+++ libcxx/trunk/test/std/experimental/utilities/meta/meta.type.synop/meta.rel.pass.cpp Fri Dec 19 19:40:03 2014
@@ -0,0 +1,65 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <experimental/type_traits>
+
+#include <experimental/type_traits>
+
+#if _LIBCPP_STD_VER > 11
+
+namespace ex = std::experimental;
+
+struct base_type {};
+struct derived_type : base_type {};
+
+int main()
+{
+    {
+        typedef int T;
+        typedef int U;
+        static_assert(ex::is_same_v<T, U>, "");
+        static_assert(std::is_same<decltype(ex::is_same_v<T, U>), const bool>::value, "");
+        static_assert(ex::is_same_v<T, U> == std::is_same<T, U>::value, "");
+    }
+    {
+        typedef int T;
+        typedef long U;
+        static_assert(!ex::is_same_v<T, U>, "");
+        static_assert(ex::is_same_v<T, U> == std::is_same<T, U>::value, "");
+    }
+    {
+        typedef base_type T;
+        typedef derived_type U;
+        static_assert(ex::is_base_of_v<T, U>, "");
+        static_assert(std::is_same<decltype(ex::is_base_of_v<T, U>), const bool>::value, "");
+        static_assert(ex::is_base_of_v<T, U> == std::is_base_of<T, U>::value, "");
+    }
+    {
+        typedef int T;
+        typedef int U;
+        static_assert(!ex::is_base_of_v<T, U>, "");
+        static_assert(ex::is_base_of_v<T, U> == std::is_base_of<T, U>::value, "");
+    }
+    {
+        typedef int T;
+        typedef long U;
+        static_assert(ex::is_convertible_v<T, U>, "");
+        static_assert(std::is_same<decltype(ex::is_convertible_v<T, U>), const bool>::value, "");
+        static_assert(ex::is_convertible_v<T, U> == std::is_convertible<T, U>::value, "");
+    }
+    {
+        typedef void T;
+        typedef int U;
+        static_assert(!ex::is_convertible_v<T, U>, "");
+        static_assert(ex::is_convertible_v<T, U> == std::is_convertible<T, U>::value, "");
+    }
+}
+#else /* _LIBCPP_STD_VER <= 11 */
+int main() {}
+#endif /* _LIBCPP_STD_VER > 11 */

Added: libcxx/trunk/test/std/experimental/utilities/meta/meta.type.synop/meta.unary.cat.pass.cpp
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/test/std/experimental/utilities/meta/meta.type.synop/meta.unary.cat.pass.cpp?rev=224658&view=auto
==============================================================================
--- libcxx/trunk/test/std/experimental/utilities/meta/meta.type.synop/meta.unary.cat.pass.cpp (added)
+++ libcxx/trunk/test/std/experimental/utilities/meta/meta.type.synop/meta.unary.cat.pass.cpp Fri Dec 19 19:40:03 2014
@@ -0,0 +1,181 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <experimental/type_traits>
+
+#include <experimental/type_traits>
+
+#if _LIBCPP_STD_VER > 11
+
+namespace ex = std::experimental;
+
+struct class_type {};
+enum enum_type {};
+union union_type {};
+
+int main()
+{
+    {
+        typedef void T;
+        static_assert(ex::is_void_v<T>, "");
+        static_assert(std::is_same<decltype(ex::is_void_v<T>), const bool>::value, "");
+        static_assert(ex::is_void_v<T> == std::is_void<T>::value, "");
+    }
+    {
+        typedef int T;
+        static_assert(!ex::is_void_v<T>, "");
+        static_assert(ex::is_void_v<T> == std::is_void<T>::value, "");
+    }
+    {
+        typedef decltype(nullptr) T;
+        static_assert(ex::is_null_pointer_v<T>, "");
+        static_assert(std::is_same<decltype(ex::is_null_pointer_v<T>), const bool>::value, "");
+        static_assert(ex::is_null_pointer_v<T> == std::is_null_pointer<T>::value, "");
+    }
+    {
+        typedef int T;
+        static_assert(!ex::is_null_pointer_v<T>, "");
+        static_assert(ex::is_null_pointer_v<T> == std::is_null_pointer<T>::value, "");
+    }
+    {
+        typedef int T;
+        static_assert(ex::is_integral_v<T>, "");
+        static_assert(std::is_same<decltype(ex::is_integral_v<T>), const bool>::value, "");
+        static_assert(ex::is_integral_v<T> == std::is_integral<T>::value, "");
+    }
+    {
+        typedef void T;
+        static_assert(!ex::is_integral_v<T>, "");
+        static_assert(ex::is_integral_v<T> == std::is_integral<T>::value, "");
+    }
+    {
+        typedef float T;
+        static_assert(ex::is_floating_point_v<T>, "");
+        static_assert(std::is_same<decltype(ex::is_floating_point_v<T>), const bool>::value, "");
+        static_assert(ex::is_floating_point_v<T> == std::is_floating_point<T>::value, "");
+    }
+    {
+        typedef int T;
+        static_assert(!ex::is_floating_point_v<T>, "");
+        static_assert(ex::is_floating_point_v<T> == std::is_floating_point<T>::value, "");
+    }
+    {
+        typedef int(T)[42];
+        static_assert(ex::is_array_v<T>, "");
+        static_assert(std::is_same<decltype(ex::is_array_v<T>), const bool>::value, "");
+        static_assert(ex::is_array_v<T> == std::is_array<T>::value, "");
+    }
+    {
+        typedef int T;
+        static_assert(!ex::is_array_v<T>, "");
+        static_assert(ex::is_array_v<T> == std::is_array<T>::value, "");
+    }
+    {
+        typedef void* T;
+        static_assert(ex::is_pointer_v<T>, "");
+        static_assert(std::is_same<decltype(ex::is_pointer_v<T>), const bool>::value, "");
+        static_assert(ex::is_pointer_v<T> == std::is_pointer<T>::value, "");
+    }
+    {
+        typedef int T;
+        static_assert(!ex::is_pointer_v<T>, "");
+        static_assert(ex::is_pointer_v<T> == std::is_pointer<T>::value, "");
+    }
+    {
+        typedef int & T;
+        static_assert(ex::is_lvalue_reference_v<T>, "");
+        static_assert(std::is_same<decltype(ex::is_lvalue_reference_v<T>), const bool>::value, "");
+        static_assert(ex::is_lvalue_reference_v<T> == std::is_lvalue_reference<T>::value, "");
+    }
+    {
+        typedef int T;
+        static_assert(!ex::is_lvalue_reference_v<T>, "");
+        static_assert(ex::is_lvalue_reference_v<T> == std::is_lvalue_reference<T>::value, "");
+    }
+    {
+        typedef int && T;
+        static_assert(ex::is_rvalue_reference_v<T>, "");
+        static_assert(std::is_same<decltype(ex::is_rvalue_reference_v<T>), const bool>::value, "");
+        static_assert(ex::is_rvalue_reference_v<T> == std::is_rvalue_reference<T>::value, "");
+    }
+    {
+        typedef int T;
+        static_assert(!ex::is_rvalue_reference_v<T>, "");
+        static_assert(ex::is_rvalue_reference_v<T> == std::is_rvalue_reference<T>::value, "");
+    }
+    {
+        typedef int class_type::*T;
+        static_assert(ex::is_member_object_pointer_v<T>, "");
+        static_assert(std::is_same<decltype(ex::is_member_object_pointer_v<T>), const bool>::value, "");
+        static_assert(ex::is_member_object_pointer_v<T> == std::is_member_object_pointer<T>::value, "");
+    }
+    {
+        typedef int T;
+        static_assert(!ex::is_member_object_pointer_v<T>, "");
+        static_assert(ex::is_member_object_pointer_v<T> == std::is_member_object_pointer<T>::value, "");
+    }
+    {
+        typedef void(class_type::*T)();
+        static_assert(ex::is_member_function_pointer_v<T>, "");
+        static_assert(std::is_same<decltype(ex::is_member_function_pointer_v<T>), const bool>::value, "");
+        static_assert(ex::is_member_function_pointer_v<T> == std::is_member_function_pointer<T>::value, "");
+    }
+    {
+        typedef int T;
+        static_assert(!ex::is_member_function_pointer_v<T>, "");
+        static_assert(ex::is_member_function_pointer_v<T> == std::is_member_function_pointer<T>::value, "");
+    }
+    {
+        typedef enum_type T;
+        static_assert(ex::is_enum_v<T>, "");
+        static_assert(std::is_same<decltype(ex::is_enum_v<T>), const bool>::value, "");
+        static_assert(ex::is_enum_v<T> == std::is_enum<T>::value, "");
+    }
+    {
+        typedef int T;
+        static_assert(!ex::is_enum_v<T>, "");
+        static_assert(ex::is_enum_v<T> == std::is_enum<T>::value, "");
+    }
+    {
+        typedef union_type T;
+        static_assert(ex::is_union_v<T>, "");
+        static_assert(std::is_same<decltype(ex::is_union_v<T>), const bool>::value, "");
+        static_assert(ex::is_union_v<T> == std::is_union<T>::value, "");
+    }
+    {
+        typedef int T;
+        static_assert(!ex::is_union_v<T>, "");
+        static_assert(ex::is_union_v<T> == std::is_union<T>::value, "");
+    }
+    {
+        typedef class_type T;
+        static_assert(ex::is_class_v<T>, "");
+        static_assert(std::is_same<decltype(ex::is_class_v<T>), const bool>::value, "");
+        static_assert(ex::is_class_v<T> == std::is_class<T>::value, "");
+    }
+    {
+        typedef int T;
+        static_assert(!ex::is_class_v<T>, "");
+        static_assert(ex::is_class_v<T> == std::is_class<T>::value, "");
+    }
+    {
+        typedef void(T)();
+        static_assert(ex::is_function_v<T>, "");
+        static_assert(std::is_same<decltype(ex::is_function_v<T>), const bool>::value, "");
+        static_assert(ex::is_function_v<T> == std::is_function<T>::value, "");
+    }
+    {
+        typedef int T;
+        static_assert(!ex::is_function_v<T>, "");
+        static_assert(ex::is_function_v<T> == std::is_function<T>::value, "");
+    }
+}
+#else /* _LIBCPP_STD_VER <= 11 */
+int main() {}
+#endif /* _LIBCPP_STD_VER > 11 */

Added: libcxx/trunk/test/std/experimental/utilities/meta/meta.type.synop/meta.unary.comp.pass.cpp
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/test/std/experimental/utilities/meta/meta.type.synop/meta.unary.comp.pass.cpp?rev=224658&view=auto
==============================================================================
--- libcxx/trunk/test/std/experimental/utilities/meta/meta.type.synop/meta.unary.comp.pass.cpp (added)
+++ libcxx/trunk/test/std/experimental/utilities/meta/meta.type.synop/meta.unary.comp.pass.cpp Fri Dec 19 19:40:03 2014
@@ -0,0 +1,102 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <experimental/type_traits>
+
+#include <experimental/type_traits>
+
+#if _LIBCPP_STD_VER > 11
+
+namespace ex = std::experimental;
+
+struct class_type {};
+
+int main()
+{
+    {
+        typedef int & T;
+        static_assert(ex::is_reference_v<T>, "");
+        static_assert(std::is_same<decltype(ex::is_reference_v<T>), const bool>::value, "");
+        static_assert(ex::is_reference_v<T> == std::is_reference<T>::value, "");
+    }
+    {
+        typedef int T;
+        static_assert(!ex::is_reference_v<T>, "");
+        static_assert(ex::is_reference_v<T> == std::is_reference<T>::value, "");
+    }
+    {
+        typedef int T;
+        static_assert(ex::is_arithmetic_v<T>, "");
+        static_assert(std::is_same<decltype(ex::is_arithmetic_v<T>), const bool>::value, "");
+        static_assert(ex::is_arithmetic_v<T> == std::is_arithmetic<T>::value, "");
+    }
+    {
+        typedef void* T;
+        static_assert(!ex::is_arithmetic_v<T>, "");
+        static_assert(ex::is_arithmetic_v<T> == std::is_arithmetic<T>::value, "");
+    }
+    {
+        typedef int T;
+        static_assert(ex::is_fundamental_v<T>, "");
+        static_assert(std::is_same<decltype(ex::is_fundamental_v<T>), const bool>::value, "");
+        static_assert(ex::is_fundamental_v<T> == std::is_fundamental<T>::value, "");
+    }
+    {
+        typedef class_type T;
+        static_assert(!ex::is_fundamental_v<T>, "");
+        static_assert(ex::is_fundamental_v<T> == std::is_fundamental<T>::value, "");
+    }
+    {
+        typedef class_type T;
+        static_assert(ex::is_object_v<T>, "");
+        static_assert(std::is_same<decltype(ex::is_object_v<T>), const bool>::value, "");
+        static_assert(ex::is_object_v<T> == std::is_object<T>::value, "");
+    }
+    {
+        typedef void T;
+        static_assert(!ex::is_object_v<T>, "");
+        static_assert(ex::is_object_v<T> == std::is_object<T>::value, "");
+    }
+    {
+        typedef int T;
+        static_assert(ex::is_scalar_v<T>, "");
+        static_assert(std::is_same<decltype(ex::is_scalar_v<T>), const bool>::value, "");
+        static_assert(ex::is_scalar_v<T> == std::is_scalar<T>::value, "");
+    }
+    {
+        typedef void T;
+        static_assert(!ex::is_scalar_v<T>, "");
+        static_assert(ex::is_scalar_v<T> == std::is_scalar<T>::value, "");
+    }
+    {
+        typedef void* T;
+        static_assert(ex::is_compound_v<T>, "");
+        static_assert(std::is_same<decltype(ex::is_compound_v<T>), const bool>::value, "");
+        static_assert(ex::is_compound_v<T> == std::is_compound<T>::value, "");
+    }
+    {
+        typedef void T;
+        static_assert(!ex::is_compound_v<T>, "");
+        static_assert(ex::is_compound_v<T> == std::is_compound<T>::value, "");
+    }
+    {
+        typedef int class_type::*T;
+        static_assert(ex::is_member_pointer_v<T>, "");
+        static_assert(std::is_same<decltype(ex::is_member_pointer_v<T>), const bool>::value, "");
+        static_assert(ex::is_member_pointer_v<T> == std::is_member_pointer<T>::value, "");
+    }
+    {
+        typedef int T;
+        static_assert(!ex::is_member_pointer_v<T>, "");
+        static_assert(ex::is_member_pointer_v<T> == std::is_member_pointer<T>::value, "");
+    }
+}
+#else /* _LIBCPP_STD_VER <= 11 */
+int main() {}
+#endif /* _LIBCPP_STD_VER > 11 */

Added: libcxx/trunk/test/std/experimental/utilities/meta/meta.type.synop/meta.unary.prop.pass.cpp
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/test/std/experimental/utilities/meta/meta.type.synop/meta.unary.prop.pass.cpp?rev=224658&view=auto
==============================================================================
--- libcxx/trunk/test/std/experimental/utilities/meta/meta.type.synop/meta.unary.prop.pass.cpp (added)
+++ libcxx/trunk/test/std/experimental/utilities/meta/meta.type.synop/meta.unary.prop.pass.cpp Fri Dec 19 19:40:03 2014
@@ -0,0 +1,489 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <experimental/type_traits>
+
+#include <experimental/type_traits>
+
+#if _LIBCPP_STD_VER > 11
+
+namespace ex = std::experimental;
+
+struct non_literal_type { non_literal_type() {} };
+struct empty_type {};
+
+struct polymorphic_type
+{
+    virtual void foo() {}
+};
+
+struct abstract_type
+{
+    virtual void foo() = 0;
+};
+
+struct final_type final {};
+
+struct virtual_dtor_type
+{
+    virtual ~virtual_dtor_type() {}
+};
+
+void type_properties_test()
+{
+    {
+        typedef const int T;
+        static_assert(ex::is_const_v<T>, "");
+        static_assert(std::is_same<decltype(ex::is_const_v<T>), const bool>::value, "");
+        static_assert(ex::is_const_v<T> == std::is_const<T>::value, "");
+    }
+    {
+        typedef int T;
+        static_assert(!ex::is_const_v<T>, "");
+        static_assert(ex::is_const_v<T> == std::is_const<T>::value, "");
+    }
+    {
+        typedef volatile int T;
+        static_assert(ex::is_volatile_v<T>, "");
+        static_assert(std::is_same<decltype(ex::is_volatile_v<T>), const bool>::value, "");
+        static_assert(ex::is_volatile_v<T> == std::is_volatile<T>::value, "");
+    }
+    {
+        typedef int T;
+        static_assert(!ex::is_volatile_v<T>, "");
+        static_assert(ex::is_volatile_v<T> == std::is_volatile<T>::value, "");
+    }
+    {
+        typedef int T;
+        static_assert(ex::is_trivial_v<T>, "");
+        static_assert(std::is_same<decltype(ex::is_trivial_v<T>), const bool>::value, "");
+        static_assert(ex::is_trivial_v<T> == std::is_trivial<T>::value, "");
+    }
+    {
+        typedef int & T;
+        static_assert(!ex::is_trivial_v<T>, "");
+        static_assert(ex::is_trivial_v<T> == std::is_trivial<T>::value, "");
+    }
+    {
+        typedef int T;
+        static_assert(ex::is_trivially_copyable_v<T>, "");
+        static_assert(std::is_same<decltype(ex::is_trivially_copyable_v<T>), const bool>::value, "");
+        static_assert(ex::is_trivially_copyable_v<T> == std::is_trivially_copyable<T>::value, "");
+    }
+    {
+        typedef int & T;
+        static_assert(!ex::is_trivially_copyable_v<T>, "");
+        static_assert(ex::is_trivially_copyable_v<T> == std::is_trivially_copyable<T>::value, "");
+    }
+    {
+        typedef int T;
+        static_assert(ex::is_standard_layout_v<T>, "");
+        static_assert(std::is_same<decltype(ex::is_standard_layout_v<T>), const bool>::value, "");
+        static_assert(ex::is_standard_layout_v<T> == std::is_standard_layout<T>::value, "");
+    }
+    {
+        typedef int & T;
+        static_assert(!ex::is_standard_layout_v<T>, "");
+        static_assert(ex::is_standard_layout_v<T> == std::is_standard_layout<T>::value, "");
+    }
+    {
+        typedef int T;
+        static_assert(ex::is_pod_v<T>, "");
+        static_assert(std::is_same<decltype(ex::is_pod_v<T>), const bool>::value, "");
+        static_assert(ex::is_pod_v<T> == std::is_pod<T>::value, "");
+    }
+    {
+        typedef int & T;
+        static_assert(!ex::is_pod_v<T>, "");
+        static_assert(ex::is_pod_v<T> == std::is_pod<T>::value, "");
+    }
+    {
+        typedef int T;
+        static_assert(ex::is_literal_type_v<T>, "");
+        static_assert(std::is_same<decltype(ex::is_literal_type_v<T>), const bool>::value, "");
+        static_assert(ex::is_literal_type_v<T> == std::is_literal_type<T>::value, "");
+    }
+    {
+        typedef non_literal_type T;
+        static_assert(!ex::is_literal_type_v<T>, "");
+        static_assert(ex::is_literal_type_v<T> == std::is_literal_type<T>::value, "");
+    }
+    {
+        typedef empty_type T;
+        static_assert(ex::is_empty_v<T>, "");
+        static_assert(std::is_same<decltype(ex::is_empty_v<T>), const bool>::value, "");
+        static_assert(ex::is_empty_v<T> == std::is_empty<T>::value, "");
+    }
+    {
+        typedef int T;
+        static_assert(!ex::is_empty_v<T>, "");
+        static_assert(ex::is_empty_v<T> == std::is_empty<T>::value, "");
+    }
+    {
+        typedef polymorphic_type T;
+        static_assert(ex::is_polymorphic_v<T>, "");
+        static_assert(std::is_same<decltype(ex::is_polymorphic_v<T>), const bool>::value, "");
+        static_assert(ex::is_polymorphic_v<T> == std::is_polymorphic<T>::value, "");
+    }
+    {
+        typedef int T;
+        static_assert(!ex::is_polymorphic_v<T>, "");
+        static_assert(ex::is_polymorphic_v<T> == std::is_polymorphic<T>::value, "");
+    }
+    {
+        typedef abstract_type T;
+        static_assert(ex::is_abstract_v<T>, "");
+        static_assert(std::is_same<decltype(ex::is_abstract_v<T>), const bool>::value, "");
+        static_assert(ex::is_abstract_v<T> == std::is_abstract<T>::value, "");
+    }
+    {
+        typedef int T;
+        static_assert(!ex::is_abstract_v<T>, "");
+        static_assert(ex::is_abstract_v<T> == std::is_abstract<T>::value, "");
+    }
+    {
+        typedef final_type T;
+        static_assert(ex::is_final_v<T>, "");
+        static_assert(std::is_same<decltype(ex::is_final_v<T>), const bool>::value, "");
+        static_assert(ex::is_final_v<T> == std::is_final<T>::value, "");
+    }
+    {
+        typedef int T;
+        static_assert(!ex::is_final_v<T>, "");
+        static_assert(ex::is_final_v<T> == std::is_final<T>::value, "");
+    }
+    {
+        typedef int T;
+        static_assert(ex::is_signed_v<T>, "");
+        static_assert(std::is_same<decltype(ex::is_signed_v<T>), const bool>::value, "");
+        static_assert(ex::is_signed_v<T> == std::is_signed<T>::value, "");
+    }
+    {
+        typedef unsigned T;
+        static_assert(!ex::is_signed_v<T>, "");
+        static_assert(ex::is_signed_v<T> == std::is_signed<T>::value, "");
+    }
+    {
+        typedef unsigned T;
+        static_assert(ex::is_unsigned_v<T>, "");
+        static_assert(std::is_same<decltype(ex::is_unsigned_v<T>), const bool>::value, "");
+        static_assert(ex::is_unsigned_v<T> == std::is_unsigned<T>::value, "");
+    }
+    {
+        typedef int T;
+        static_assert(!ex::is_unsigned_v<T>, "");
+        static_assert(ex::is_unsigned_v<T> == std::is_unsigned<T>::value, "");
+    }
+}
+
+void is_constructible_and_assignable_test()
+{
+    {
+        typedef int T;
+        static_assert(ex::is_constructible_v<T, int>, "");
+        static_assert(std::is_same<decltype(ex::is_constructible_v<T, int>), const bool>::value, "");
+        static_assert(ex::is_constructible_v<T, int> == std::is_constructible<T, int>::value, "");
+    }
+    {
+        typedef void T;
+        static_assert(!ex::is_constructible_v<T, int>, "");
+        static_assert(ex::is_constructible_v<T, int> == std::is_constructible<T, int>::value, "");
+    }
+    {
+        typedef int T;
+        static_assert(ex::is_default_constructible_v<T>, "");
+        static_assert(std::is_same<decltype(ex::is_default_constructible_v<T>), const bool>::value, "");
+        static_assert(ex::is_default_constructible_v<T> == std::is_default_constructible<T>::value, "");
+    }
+    {
+        typedef int & T;
+        static_assert(!ex::is_default_constructible_v<T>, "");
+        static_assert(ex::is_default_constructible_v<T> == std::is_default_constructible<T>::value, "");
+    }
+    {
+        typedef int T;
+        static_assert(ex::is_copy_constructible_v<T>, "");
+        static_assert(std::is_same<decltype(ex::is_copy_constructible_v<T>), const bool>::value, "");
+        static_assert(ex::is_copy_constructible_v<T> == std::is_copy_constructible<T>::value, "");
+    }
+    {
+        typedef void T;
+        static_assert(!ex::is_copy_constructible_v<T>, "");
+        static_assert(ex::is_copy_constructible_v<T> == std::is_copy_constructible<T>::value, "");
+    }
+    {
+        typedef int T;
+        static_assert(ex::is_move_constructible_v<T>, "");
+        static_assert(std::is_same<decltype(ex::is_move_constructible_v<T>), const bool>::value, "");
+        static_assert(ex::is_move_constructible_v<T> == std::is_move_constructible<T>::value, "");
+    }
+    {
+        typedef void T;
+        static_assert(!ex::is_move_constructible_v<T>, "");
+        static_assert(ex::is_move_constructible_v<T> == std::is_move_constructible<T>::value, "");
+    }
+    {
+        typedef int & T;
+        typedef int U;
+        static_assert(ex::is_assignable_v<T, U>, "");
+        static_assert(std::is_same<decltype(ex::is_assignable_v<T, U>), const bool>::value, "");
+        static_assert(ex::is_assignable_v<T, U> == std::is_assignable<T, U>::value, "");
+    }
+    {
+        typedef int & T;
+        typedef void U;
+        static_assert(!ex::is_assignable_v<T, U>, "");
+        static_assert(ex::is_assignable_v<T, U> == std::is_assignable<T, U>::value, "");
+    }
+    {
+        typedef int T;
+        static_assert(ex::is_copy_assignable_v<T>, "");
+        static_assert(std::is_same<decltype(ex::is_copy_assignable_v<T>), const bool>::value, "");
+        static_assert(ex::is_copy_assignable_v<T> == std::is_copy_assignable<T>::value, "");
+    }
+    {
+        typedef void T;
+        static_assert(!ex::is_copy_assignable_v<T>, "");
+        static_assert(ex::is_copy_assignable_v<T> == std::is_copy_assignable<T>::value, "");
+    }
+    {
+        typedef int T;
+        static_assert(ex::is_move_assignable_v<T>, "");
+        static_assert(std::is_same<decltype(ex::is_move_assignable_v<T>), const bool>::value, "");
+        static_assert(ex::is_move_assignable_v<T> == std::is_move_assignable<T>::value, "");
+    }
+    {
+        typedef void T;
+        static_assert(!ex::is_move_assignable_v<T>, "");
+        static_assert(ex::is_move_assignable_v<T> == std::is_move_assignable<T>::value, "");
+    }
+    {
+        typedef int T;
+        static_assert(ex::is_destructible_v<T>, "");
+        static_assert(std::is_same<decltype(ex::is_destructible_v<T>), const bool>::value, "");
+        static_assert(ex::is_destructible_v<T> == std::is_destructible<T>::value, "");
+    }
+    {
+        typedef void T;
+        static_assert(!ex::is_destructible_v<T>, "");
+        static_assert(ex::is_destructible_v<T> == std::is_destructible<T>::value, "");
+    }
+}
+
+void is_trivially_constructible_and_assignable_test()
+{
+    {
+        typedef int T;
+        static_assert(ex::is_trivially_constructible_v<T, int>, "");
+        static_assert(std::is_same<decltype(ex::is_trivially_constructible_v<T, int>), const bool>::value, "");
+        static_assert(ex::is_trivially_constructible_v<T, int> == std::is_constructible<T, int>::value, "");
+    }
+    {
+        typedef void T;
+        static_assert(!ex::is_trivially_constructible_v<T, int>, "");
+        static_assert(ex::is_trivially_constructible_v<T, int> == std::is_constructible<T, int>::value, "");
+    }
+    {
+        typedef int T;
+        static_assert(ex::is_trivially_default_constructible_v<T>, "");
+        static_assert(std::is_same<decltype(ex::is_trivially_default_constructible_v<T>), const bool>::value, "");
+        static_assert(ex::is_trivially_default_constructible_v<T> == std::is_default_constructible<T>::value, "");
+    }
+    {
+        typedef int & T;
+        static_assert(!ex::is_trivially_default_constructible_v<T>, "");
+        static_assert(ex::is_trivially_default_constructible_v<T> == std::is_default_constructible<T>::value, "");
+    }
+    {
+        typedef int T;
+        static_assert(ex::is_trivially_copy_constructible_v<T>, "");
+        static_assert(std::is_same<decltype(ex::is_trivially_copy_constructible_v<T>), const bool>::value, "");
+        static_assert(ex::is_trivially_copy_constructible_v<T> == std::is_copy_constructible<T>::value, "");
+    }
+    {
+        typedef void T;
+        static_assert(!ex::is_trivially_copy_constructible_v<T>, "");
+        static_assert(ex::is_trivially_copy_constructible_v<T> == std::is_copy_constructible<T>::value, "");
+    }
+    {
+        typedef int T;
+        static_assert(ex::is_trivially_move_constructible_v<T>, "");
+        static_assert(std::is_same<decltype(ex::is_trivially_move_constructible_v<T>), const bool>::value, "");
+        static_assert(ex::is_trivially_move_constructible_v<T> == std::is_move_constructible<T>::value, "");
+    }
+    {
+        typedef void T;
+        static_assert(!ex::is_trivially_move_constructible_v<T>, "");
+        static_assert(ex::is_trivially_move_constructible_v<T> == std::is_move_constructible<T>::value, "");
+    }
+    {
+        typedef int & T;
+        typedef int U;
+        static_assert(ex::is_trivially_assignable_v<T, U>, "");
+        static_assert(std::is_same<decltype(ex::is_trivially_assignable_v<T, U>), const bool>::value, "");
+        static_assert(ex::is_trivially_assignable_v<T, U> == std::is_assignable<T, U>::value, "");
+    }
+    {
+        typedef int & T;
+        typedef void U;
+        static_assert(!ex::is_trivially_assignable_v<T, U>, "");
+        static_assert(ex::is_trivially_assignable_v<T, U> == std::is_assignable<T, U>::value, "");
+    }
+    {
+        typedef int T;
+        static_assert(ex::is_trivially_copy_assignable_v<T>, "");
+        static_assert(std::is_same<decltype(ex::is_trivially_copy_assignable_v<T>), const bool>::value, "");
+        static_assert(ex::is_trivially_copy_assignable_v<T> == std::is_copy_assignable<T>::value, "");
+    }
+    {
+        typedef void T;
+        static_assert(!ex::is_trivially_copy_assignable_v<T>, "");
+        static_assert(ex::is_trivially_copy_assignable_v<T> == std::is_copy_assignable<T>::value, "");
+    }
+    {
+        typedef int T;
+        static_assert(ex::is_trivially_move_assignable_v<T>, "");
+        static_assert(std::is_same<decltype(ex::is_trivially_move_assignable_v<T>), const bool>::value, "");
+        static_assert(ex::is_trivially_move_assignable_v<T> == std::is_move_assignable<T>::value, "");
+    }
+    {
+        typedef void T;
+        static_assert(!ex::is_trivially_move_assignable_v<T>, "");
+        static_assert(ex::is_trivially_move_assignable_v<T> == std::is_move_assignable<T>::value, "");
+    }
+    {
+        typedef int T;
+        static_assert(ex::is_trivially_destructible_v<T>, "");
+        static_assert(std::is_same<decltype(ex::is_trivially_destructible_v<T>), const bool>::value, "");
+        static_assert(ex::is_trivially_destructible_v<T> == std::is_destructible<T>::value, "");
+    }
+    {
+        typedef void T;
+        static_assert(!ex::is_trivially_destructible_v<T>, "");
+        static_assert(ex::is_trivially_destructible_v<T> == std::is_destructible<T>::value, "");
+    }
+}
+
+
+
+void is_nothrow_constructible_and_assignable_test()
+{
+    {
+        typedef int T;
+        static_assert(ex::is_nothrow_constructible_v<T, int>, "");
+        static_assert(std::is_same<decltype(ex::is_nothrow_constructible_v<T, int>), const bool>::value, "");
+        static_assert(ex::is_nothrow_constructible_v<T, int> == std::is_constructible<T, int>::value, "");
+    }
+    {
+        typedef void T;
+        static_assert(!ex::is_nothrow_constructible_v<T, int>, "");
+        static_assert(ex::is_nothrow_constructible_v<T, int> == std::is_constructible<T, int>::value, "");
+    }
+    {
+        typedef int T;
+        static_assert(ex::is_nothrow_default_constructible_v<T>, "");
+        static_assert(std::is_same<decltype(ex::is_nothrow_default_constructible_v<T>), const bool>::value, "");
+        static_assert(ex::is_nothrow_default_constructible_v<T> == std::is_default_constructible<T>::value, "");
+    }
+    {
+        typedef int & T;
+        static_assert(!ex::is_nothrow_default_constructible_v<T>, "");
+        static_assert(ex::is_nothrow_default_constructible_v<T> == std::is_default_constructible<T>::value, "");
+    }
+    {
+        typedef int T;
+        static_assert(ex::is_nothrow_copy_constructible_v<T>, "");
+        static_assert(std::is_same<decltype(ex::is_nothrow_copy_constructible_v<T>), const bool>::value, "");
+        static_assert(ex::is_nothrow_copy_constructible_v<T> == std::is_copy_constructible<T>::value, "");
+    }
+    {
+        typedef void T;
+        static_assert(!ex::is_nothrow_copy_constructible_v<T>, "");
+        static_assert(ex::is_nothrow_copy_constructible_v<T> == std::is_copy_constructible<T>::value, "");
+    }
+    {
+        typedef int T;
+        static_assert(ex::is_nothrow_move_constructible_v<T>, "");
+        static_assert(std::is_same<decltype(ex::is_nothrow_move_constructible_v<T>), const bool>::value, "");
+        static_assert(ex::is_nothrow_move_constructible_v<T> == std::is_move_constructible<T>::value, "");
+    }
+    {
+        typedef void T;
+        static_assert(!ex::is_nothrow_move_constructible_v<T>, "");
+        static_assert(ex::is_nothrow_move_constructible_v<T> == std::is_move_constructible<T>::value, "");
+    }
+    {
+        typedef int & T;
+        typedef int U;
+        static_assert(ex::is_nothrow_assignable_v<T, U>, "");
+        static_assert(std::is_same<decltype(ex::is_nothrow_assignable_v<T, U>), const bool>::value, "");
+        static_assert(ex::is_nothrow_assignable_v<T, U> == std::is_assignable<T, U>::value, "");
+    }
+    {
+        typedef int & T;
+        typedef void U;
+        static_assert(!ex::is_nothrow_assignable_v<T, U>, "");
+        static_assert(ex::is_nothrow_assignable_v<T, U> == std::is_assignable<T, U>::value, "");
+    }
+    {
+        typedef int T;
+        static_assert(ex::is_nothrow_copy_assignable_v<T>, "");
+        static_assert(std::is_same<decltype(ex::is_nothrow_copy_assignable_v<T>), const bool>::value, "");
+        static_assert(ex::is_nothrow_copy_assignable_v<T> == std::is_copy_assignable<T>::value, "");
+    }
+    {
+        typedef void T;
+        static_assert(!ex::is_nothrow_copy_assignable_v<T>, "");
+        static_assert(ex::is_nothrow_copy_assignable_v<T> == std::is_copy_assignable<T>::value, "");
+    }
+    {
+        typedef int T;
+        static_assert(ex::is_nothrow_move_assignable_v<T>, "");
+        static_assert(std::is_same<decltype(ex::is_nothrow_move_assignable_v<T>), const bool>::value, "");
+        static_assert(ex::is_nothrow_move_assignable_v<T> == std::is_move_assignable<T>::value, "");
+    }
+    {
+        typedef void T;
+        static_assert(!ex::is_nothrow_move_assignable_v<T>, "");
+        static_assert(ex::is_nothrow_move_assignable_v<T> == std::is_move_assignable<T>::value, "");
+    }
+    {
+        typedef int T;
+        static_assert(ex::is_nothrow_destructible_v<T>, "");
+        static_assert(std::is_same<decltype(ex::is_nothrow_destructible_v<T>), const bool>::value, "");
+        static_assert(ex::is_nothrow_destructible_v<T> == std::is_destructible<T>::value, "");
+    }
+    {
+        typedef void T;
+        static_assert(!ex::is_nothrow_destructible_v<T>, "");
+        static_assert(ex::is_nothrow_destructible_v<T> == std::is_destructible<T>::value, "");
+    }
+}
+
+int main()
+{
+    type_properties_test();
+    is_constructible_and_assignable_test();
+    is_trivially_constructible_and_assignable_test();
+    is_nothrow_constructible_and_assignable_test();
+    {
+        typedef virtual_dtor_type T;
+        static_assert(ex::has_virtual_destructor_v<T>, "");
+        static_assert(std::is_same<decltype(ex::has_virtual_destructor_v<T>), const bool>::value, "");
+        static_assert(ex::has_virtual_destructor_v<T> == std::has_virtual_destructor<T>::value, "");
+    }
+    {
+        typedef int T;
+        static_assert(!ex::has_virtual_destructor_v<T>, "");
+        static_assert(ex::has_virtual_destructor_v<T> == std::has_virtual_destructor<T>::value, "");
+    }
+}
+#else /* _LIBCPP_STD_VER <= 11 */
+int main() {}
+#endif /* _LIBCPP_STD_VER > 11 */

Added: libcxx/trunk/test/std/experimental/utilities/meta/meta.type.synop/meta.unary.prop.query.pass.cpp
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/test/std/experimental/utilities/meta/meta.type.synop/meta.unary.prop.query.pass.cpp?rev=224658&view=auto
==============================================================================
--- libcxx/trunk/test/std/experimental/utilities/meta/meta.type.synop/meta.unary.prop.query.pass.cpp (added)
+++ libcxx/trunk/test/std/experimental/utilities/meta/meta.type.synop/meta.unary.prop.query.pass.cpp Fri Dec 19 19:40:03 2014
@@ -0,0 +1,66 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <experimental/type_traits>
+
+#include <experimental/type_traits>
+
+#if _LIBCPP_STD_VER > 11
+
+namespace ex = std::experimental;
+
+int main()
+{
+    {
+        typedef char T;
+        static_assert(ex::alignment_of_v<T> == 1, "");
+        static_assert(std::is_same<decltype(ex::alignment_of_v<T>), const std::size_t>::value, "");
+        static_assert(ex::alignment_of_v<T> == std::alignment_of<T>::value, "");
+    }
+    {
+        typedef char(T)[1][1][1];
+        static_assert(ex::rank_v<T> == 3, "");
+        static_assert(std::is_same<decltype(ex::rank_v<T>), const std::size_t>::value, "");
+        static_assert(ex::rank_v<T> == std::rank<T>::value, "");
+    }
+    {
+        typedef void T;
+        static_assert(ex::rank_v<T> == 0, "");
+        static_assert(ex::rank_v<T> == std::rank<T>::value, "");
+    }
+    {
+        typedef char(T)[2][3][4];
+        static_assert(ex::extent_v<T> == 2, "");
+        static_assert(std::is_same<decltype(ex::extent_v<T>), const std::size_t>::value, "");
+        static_assert(ex::extent_v<T> == std::extent<T>::value, "");
+    }
+    {
+        typedef char(T)[2][3][4];
+        static_assert(ex::extent_v<T, 0> == 2, "");
+        static_assert(ex::extent_v<T, 0> == std::extent<T, 0>::value, "");
+    }
+    {
+        typedef char(T)[2][3][4];
+        static_assert(ex::extent_v<T, 1> == 3, "");
+        static_assert(ex::extent_v<T, 1> == std::extent<T, 1>::value, "");
+    }
+    {
+        typedef char(T)[2][3][4];
+        static_assert(ex::extent_v<T, 5> == 0, "");
+        static_assert(ex::extent_v<T, 5> == std::extent<T, 5>::value, "");
+    }
+    {
+        typedef void T;
+        static_assert(ex::extent_v<T, 0> == 0, "");
+        static_assert(ex::extent_v<T, 0> == std::extent<T, 0>::value, "");
+    }
+}
+#else /* _LIBCPP_STD_VER <= 11 */
+int main() {}
+#endif /* _LIBCPP_STD_VER > 11 */

Added: libcxx/trunk/test/std/experimental/utilities/meta/version.pass.cpp
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/test/std/experimental/utilities/meta/version.pass.cpp?rev=224658&view=auto
==============================================================================
--- libcxx/trunk/test/std/experimental/utilities/meta/version.pass.cpp (added)
+++ libcxx/trunk/test/std/experimental/utilities/meta/version.pass.cpp Fri Dec 19 19:40:03 2014
@@ -0,0 +1,20 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <experimental/type_traits>
+
+#include <experimental/type_traits>
+
+#ifndef _LIBCPP_VERSION
+#error _LIBCPP_VERSION not defined
+#endif
+
+int main()
+{
+}

Added: libcxx/trunk/test/std/experimental/utilities/nothing_to_do.pass.cpp
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/test/std/experimental/utilities/nothing_to_do.pass.cpp?rev=224658&view=auto
==============================================================================
--- libcxx/trunk/test/std/experimental/utilities/nothing_to_do.pass.cpp (added)
+++ libcxx/trunk/test/std/experimental/utilities/nothing_to_do.pass.cpp Fri Dec 19 19:40:03 2014
@@ -0,0 +1,13 @@
+// -*- C++ -*-
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+int main()
+{
+}

Added: libcxx/trunk/test/std/experimental/utilities/utility/utility.erased.type/erased_type.pass.cpp
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/test/std/experimental/utilities/utility/utility.erased.type/erased_type.pass.cpp?rev=224658&view=auto
==============================================================================
--- libcxx/trunk/test/std/experimental/utilities/utility/utility.erased.type/erased_type.pass.cpp (added)
+++ libcxx/trunk/test/std/experimental/utilities/utility/utility.erased.type/erased_type.pass.cpp Fri Dec 19 19:40:03 2014
@@ -0,0 +1,17 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <experimental/utility>
+
+#include <experimental/utility>
+
+int main()
+{
+    std::experimental::erased_type e();
+}

Added: libcxx/trunk/test/std/experimental/utilities/utility/utility.synop/includes.pass.cpp
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/test/std/experimental/utilities/utility/utility.synop/includes.pass.cpp?rev=224658&view=auto
==============================================================================
--- libcxx/trunk/test/std/experimental/utilities/utility/utility.synop/includes.pass.cpp (added)
+++ libcxx/trunk/test/std/experimental/utilities/utility/utility.synop/includes.pass.cpp Fri Dec 19 19:40:03 2014
@@ -0,0 +1,20 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <experimental/utility>
+
+#include <experimental/utility>
+
+#ifndef _LIBCPP_UTILITY
+#   error "<experimental/utility> must include <utility>"
+#endif
+
+int main()
+{
+}

Added: libcxx/trunk/test/std/experimental/utilities/utility/version.pass.cpp
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/test/std/experimental/utilities/utility/version.pass.cpp?rev=224658&view=auto
==============================================================================
--- libcxx/trunk/test/std/experimental/utilities/utility/version.pass.cpp (added)
+++ libcxx/trunk/test/std/experimental/utilities/utility/version.pass.cpp Fri Dec 19 19:40:03 2014
@@ -0,0 +1,20 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <experimental/utility>
+
+#include <experimental/utility>
+
+#ifndef _LIBCPP_VERSION
+#error _LIBCPP_VERSION not defined
+#endif
+
+int main()
+{
+}

Added: libcxx/trunk/test/std/extensions/hash/specializations.fail.cpp
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/test/std/extensions/hash/specializations.fail.cpp?rev=224658&view=auto
==============================================================================
--- libcxx/trunk/test/std/extensions/hash/specializations.fail.cpp (added)
+++ libcxx/trunk/test/std/extensions/hash/specializations.fail.cpp Fri Dec 19 19:40:03 2014
@@ -0,0 +1,17 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#include <assert.h>
+#include <ext/hash_map>
+#include <string>
+
+int main()
+{
+    assert(__gnu_cxx::hash<std::string>()(std::string()) == 0);  // error
+}

Added: libcxx/trunk/test/std/extensions/hash/specializations.pass.cpp
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/test/std/extensions/hash/specializations.pass.cpp?rev=224658&view=auto
==============================================================================
--- libcxx/trunk/test/std/extensions/hash/specializations.pass.cpp (added)
+++ libcxx/trunk/test/std/extensions/hash/specializations.pass.cpp Fri Dec 19 19:40:03 2014
@@ -0,0 +1,29 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#include <assert.h>
+#include <ext/hash_map>
+#include <string>
+
+int main()
+{
+    char str[] = "test";
+    assert(__gnu_cxx::hash<const char *>()("test") ==
+           std::hash<std::string>()("test"));
+    assert(__gnu_cxx::hash<char *>()(str) == std::hash<std::string>()("test"));
+    assert(__gnu_cxx::hash<char>()(42) == 42);
+    assert(__gnu_cxx::hash<signed char>()(42) == 42);
+    assert(__gnu_cxx::hash<unsigned char>()(42) == 42);
+    assert(__gnu_cxx::hash<short>()(42) == 42);
+    assert(__gnu_cxx::hash<unsigned short>()(42) == 42);
+    assert(__gnu_cxx::hash<int>()(42) == 42);
+    assert(__gnu_cxx::hash<unsigned int>()(42) == 42);
+    assert(__gnu_cxx::hash<long>()(42) == 42);
+    assert(__gnu_cxx::hash<unsigned long>()(42) == 42);
+}

Added: libcxx/trunk/test/std/extensions/hash_map/const_iterator.fail.cpp
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/test/std/extensions/hash_map/const_iterator.fail.cpp?rev=224658&view=auto
==============================================================================
--- libcxx/trunk/test/std/extensions/hash_map/const_iterator.fail.cpp (added)
+++ libcxx/trunk/test/std/extensions/hash_map/const_iterator.fail.cpp Fri Dec 19 19:40:03 2014
@@ -0,0 +1,18 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#include <ext/hash_map>
+
+int main()
+{
+    __gnu_cxx::hash_map<int, int> m;
+    m[1] = 1;
+    const __gnu_cxx::hash_map<int, int> &cm = m;
+    cm.find(1)->second = 2;  // error
+}

Added: libcxx/trunk/test/std/extensions/nothing_to_do.pass.cpp
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/test/std/extensions/nothing_to_do.pass.cpp?rev=224658&view=auto
==============================================================================
--- libcxx/trunk/test/std/extensions/nothing_to_do.pass.cpp (added)
+++ libcxx/trunk/test/std/extensions/nothing_to_do.pass.cpp Fri Dec 19 19:40:03 2014
@@ -0,0 +1,12 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+int main()
+{
+}