[libcxx] r222378 - Implement N4280 - 'Non-member size() and more'
Marshall Clow
mclow.lists at gmail.com
Wed Nov 19 11:43:24 PST 2014
Author: marshall
Date: Wed Nov 19 13:43:23 2014
New Revision: 222378
URL: http://llvm.org/viewvc/llvm-project?rev=222378&view=rev
Log:
Implement N4280 - 'Non-member size() and more'
Added:
libcxx/trunk/test/iterators/iterator.container/
libcxx/trunk/test/iterators/iterator.container/data.pass.cpp
libcxx/trunk/test/iterators/iterator.container/empty.pass.cpp
libcxx/trunk/test/iterators/iterator.container/size.pass.cpp
Modified:
libcxx/trunk/include/iterator
libcxx/trunk/www/cxx1z_status.html
Modified: libcxx/trunk/include/iterator
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/include/iterator?rev=222378&r1=222377&r2=222378&view=diff
==============================================================================
--- libcxx/trunk/include/iterator (original)
+++ libcxx/trunk/include/iterator Wed Nov 19 13:43:23 2014
@@ -324,6 +324,17 @@ template <class T, size_t N> reverse_ite
template <class C> auto crbegin(const C& c) -> decltype(std::rbegin(c)); // C++14
template <class C> auto crend(const C& c) -> decltype(std::rend(c)); // C++14
+// 24.8, container access:
+template <class C> constexpr auto size(const C& c) -> decltype(c.size()); // C++17
+template <class T, size_t N> constexpr size_t size(const T (&array)[N]) noexcept; // C++17
+template <class C> constexpr auto empty(const C& c) -> decltype(c.empty()); // C++17
+template <class T, size_t N> constexpr bool empty(const T (&array)[N]) noexcept; // C++17
+template <class E> constexpr bool empty(initializer_list<E> il) noexcept; // C++17
+template <class C> constexpr auto data(C& c) -> decltype(c.data()); // C++17
+template <class C> constexpr auto data(const C& c) -> decltype(c.data()); // C++17
+template <class T, size_t N> constexpr T* data(T (&array)[N]) noexcept; // C++17
+template <class E> constexpr const E* data(initializer_list<E> il) noexcept; // C++17
+
} // std
*/
@@ -1568,6 +1579,36 @@ end(const _Cp& __c)
#endif // !defined(_LIBCPP_HAS_NO_RVALUE_REFERENCES) && !defined(_LIBCPP_HAS_NO_TRAILING_RETURN)
+#if _LIBCPP_STD_VER > 14
+template <class _C>
+constexpr auto size(const _C& __c) -> decltype(__c.size()) { return __c.size(); }
+
+template <class _Tp, size_t _N>
+constexpr size_t size(const _Tp (&__array)[_N]) noexcept { return _N; }
+
+template <class _C>
+constexpr auto empty(const _C& __c) -> decltype(__c.empty()) { return __c.empty(); }
+
+template <class _Tp, size_t _N>
+constexpr bool empty(const _Tp (&__array)[_N]) noexcept { return false; }
+
+template <class _Ep>
+constexpr bool empty(initializer_list<_Ep> __il) noexcept { return __il.size() == 0; }
+
+template <class _C> constexpr
+auto data(_C& __c) -> decltype(__c.data()) { return __c.data(); }
+
+template <class _C> constexpr
+auto data(const _C& __c) -> decltype(__c.data()) { return __c.data(); }
+
+template <class _Tp, size_t _N>
+constexpr _Tp* data(_Tp (&__array)[_N]) noexcept { return __array; }
+
+template <class _Ep>
+constexpr const _Ep* data(initializer_list<_Ep> __il) noexcept { return __il.begin(); }
+#endif
+
+
_LIBCPP_END_NAMESPACE_STD
#endif // _LIBCPP_ITERATOR
Added: libcxx/trunk/test/iterators/iterator.container/data.pass.cpp
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/test/iterators/iterator.container/data.pass.cpp?rev=222378&view=auto
==============================================================================
--- libcxx/trunk/test/iterators/iterator.container/data.pass.cpp (added)
+++ libcxx/trunk/test/iterators/iterator.container/data.pass.cpp Wed Nov 19 13:43:23 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.
+//
+//===----------------------------------------------------------------------===//
+
+// <iterator>
+// template <class C> constexpr auto data(C& c) -> decltype(c.data()); // C++17
+// template <class C> constexpr auto data(const C& c) -> decltype(c.data()); // C++17
+// template <class T, size_t N> constexpr T* data(T (&array)[N]) noexcept; // C++17
+// template <class E> constexpr const E* data(initializer_list<E> il) noexcept; // C++17
+
+#if __cplusplus <= 201402L
+int main () {}
+#else
+
+
+#include <__config>
+
+#include <iterator>
+#include <cassert>
+#include <vector>
+#include <array>
+#include <initializer_list>
+
+template<typename C>
+void test_const_container( const C& c )
+{
+ assert ( std::data(c) == c.data());
+}
+
+template<typename T>
+void test_const_container( const std::initializer_list<T>& c )
+{
+ assert ( std::data(c) == c.begin());
+}
+
+template<typename C>
+void test_container( C& c )
+{
+ assert ( std::data(c) == c.data());
+}
+
+template<typename T>
+void test_container( std::initializer_list<T>& c)
+{
+ assert ( std::data(c) == c.begin());
+}
+
+template<typename T, size_t Sz>
+void test_const_array( const T (&array)[Sz] )
+{
+ assert ( std::data(array) == &array[0]);
+}
+
+int main()
+{
+ std::vector<int> v; v.push_back(1);
+ std::array<int, 1> a; a[0] = 3;
+ std::initializer_list<int> il = { 4 };
+
+ test_container ( v );
+ test_container ( a );
+ test_container ( il );
+
+ test_const_container ( v );
+ test_const_container ( a );
+ test_const_container ( il );
+
+ static constexpr int arrA [] { 1, 2, 3 };
+ test_const_array ( arrA );
+}
+
+#endif
Added: libcxx/trunk/test/iterators/iterator.container/empty.pass.cpp
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/test/iterators/iterator.container/empty.pass.cpp?rev=222378&view=auto
==============================================================================
--- libcxx/trunk/test/iterators/iterator.container/empty.pass.cpp (added)
+++ libcxx/trunk/test/iterators/iterator.container/empty.pass.cpp Wed Nov 19 13:43:23 2014
@@ -0,0 +1,80 @@
+//===----------------------------------------------------------------------===//
+//
+// 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.
+//
+//===----------------------------------------------------------------------===//
+
+// <iterator>
+// template <class C> constexpr auto empty(const C& c) -> decltype(c.empty()); // C++17
+// template <class T, size_t N> constexpr bool empty(const T (&array)[N]) noexcept; // C++17
+// template <class E> constexpr bool empty(initializer_list<E> il) noexcept; // C++17
+
+#if __cplusplus <= 201402L
+int main () {}
+#else
+
+
+#include <__config>
+
+#include <iterator>
+#include <cassert>
+#include <vector>
+#include <array>
+#include <list>
+#include <initializer_list>
+
+template<typename C>
+void test_const_container( const C& c )
+{
+ assert ( std::empty(c) == c.empty());
+}
+
+template<typename T>
+void test_const_container( const std::initializer_list<T>& c )
+{
+ assert ( std::empty(c) == (c.size() == 0));
+}
+
+template<typename C>
+void test_container( C& c )
+{
+ assert ( std::empty(c) == c.empty());
+}
+
+template<typename T>
+void test_container( std::initializer_list<T>& c )
+{
+ assert ( std::empty(c) == (c.size() == 0));
+}
+
+template<typename T, size_t Sz>
+void test_const_array( const T (&array)[Sz] )
+{
+ assert (!std::empty(array));
+}
+
+int main()
+{
+ std::vector<int> v; v.push_back(1);
+ std::list<int> l; l.push_back(2);
+ std::array<int, 1> a; a[0] = 3;
+ std::initializer_list<int> il = { 4 };
+
+ test_container ( v );
+ test_container ( l );
+ test_container ( a );
+ test_container ( il );
+
+ test_const_container ( v );
+ test_const_container ( l );
+ test_const_container ( a );
+ test_const_container ( il );
+
+ static constexpr int arrA [] { 1, 2, 3 };
+ test_const_array ( arrA );
+}
+
+#endif
Added: libcxx/trunk/test/iterators/iterator.container/size.pass.cpp
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/test/iterators/iterator.container/size.pass.cpp?rev=222378&view=auto
==============================================================================
--- libcxx/trunk/test/iterators/iterator.container/size.pass.cpp (added)
+++ libcxx/trunk/test/iterators/iterator.container/size.pass.cpp Wed Nov 19 13:43:23 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.
+//
+//===----------------------------------------------------------------------===//
+
+// <iterator>
+// template <class C> constexpr auto size(const C& c) -> decltype(c.size()); // C++17
+// template <class T, size_t N> constexpr size_t size(const T (&array)[N]) noexcept; // C++17
+
+#if __cplusplus <= 201402L
+int main () {}
+#else
+
+
+#include <__config>
+
+#include <iterator>
+#include <cassert>
+#include <vector>
+#include <array>
+#include <list>
+#include <initializer_list>
+
+template<typename C>
+void test_const_container( const C& c )
+{
+ assert ( std::size(c) == c.size());
+}
+
+template<typename T>
+void test_const_container( const std::initializer_list<T>& c)
+{
+ assert ( std::size(c) == c.size());
+}
+
+template<typename C>
+void test_container( C& c)
+{
+ assert ( std::size(c) == c.size());
+}
+
+template<typename T>
+void test_container( std::initializer_list<T>& c )
+{
+ assert ( std::size(c) == c.size());
+}
+
+template<typename T, size_t Sz>
+void test_const_array( const T (&array)[Sz] )
+{
+ assert ( std::size(array) == Sz );
+}
+
+int main()
+{
+ std::vector<int> v; v.push_back(1);
+ std::list<int> l; l.push_back(2);
+ std::array<int, 1> a; a[0] = 3;
+ std::initializer_list<int> il = { 4 };
+
+ test_container ( v );
+ test_container ( l );
+ test_container ( a );
+ test_container ( il );
+
+ test_const_container ( v );
+ test_const_container ( l );
+ test_const_container ( a );
+ test_const_container ( il );
+
+ static constexpr int arrA [] { 1, 2, 3 };
+ test_const_array ( arrA );
+}
+
+#endif
Modified: libcxx/trunk/www/cxx1z_status.html
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/www/cxx1z_status.html?rev=222378&r1=222377&r2=222378&view=diff
==============================================================================
--- libcxx/trunk/www/cxx1z_status.html (original)
+++ libcxx/trunk/www/cxx1z_status.html Wed Nov 19 13:43:23 2014
@@ -52,15 +52,15 @@
<!--
<tr><td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2012/n3346.pdf">3346</a></td><td>LWG</td><td>Terminology for Container Element Requirements - Rev 1</td><td>Kona</td><td>Complete</td><td>3.4</td></tr>
-->
- <tr><td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2014/n4190">N4190</a></td></td><td>LWG</td><td>Removing auto_ptr, random_shuffle(), And Old <functional> Stuff.</td><td>Urbana</td><td></td><td></td></tr>
- <tr><td><a href="http://wiki.edg.com/twiki/pub/Wg21urbana-champaign/StrawPolls/n4284.html">N4284</a></td><td>LWG</td></td><td>Contiguous Iterators.</td><td>Urbana</td><td></td><td></td></tr>
+ <tr><td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2014/n3911">N3911</a></td><td>LWG</td></td><td>TransformationTrait Alias <code>void_t</code>.</td><td>Urbana</td><td>Complete</td><td>3.6</td></tr>
<tr><td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2014/n4089">N4089</a></td><td>LWG</td></td><td>Safe conversions in <code>unique_ptr<T[]></code>.</td><td>Urbana</td><td></td><td></td></tr>
- <tr><td><a href="http://wiki.edg.com/twiki/pub/Wg21urbana-champaign/StrawPolls/N4277.html">N4277</a></td><td>LWG</td></td><td>TriviallyCopyable <code>reference_wrapper</code>.</td><td>Urbana</td><td>Complete</td><td>3.2</td></tr>
+ <tr><td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2014/n4169">N4169</a></td><td>LWG</td></td><td>A proposal to add invoke function template</td><td>Urbana</td><td></td><td></td></tr>
+ <tr><td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2014/n4190">N4190</a></td></td><td>LWG</td><td>Removing auto_ptr, random_shuffle(), And Old <functional> Stuff.</td><td>Urbana</td><td></td><td></td></tr>
<tr><td><a href="http://wiki.edg.com/twiki/pub/Wg21urbana-champaign/StrawPolls/n4258.pdf">N4258</a></td><td>LWG</td></td><td>Cleaning-up noexcept in the Library.</td><td>Urbana</td><td></td><td></td></tr>
+ <tr><td><a href="http://wiki.edg.com/twiki/pub/Wg21urbana-champaign/StrawPolls/N4277.html">N4277</a></td><td>LWG</td></td><td>TriviallyCopyable <code>reference_wrapper</code>.</td><td>Urbana</td><td>Complete</td><td>3.2</td></tr>
<tr><td><a href="http://wiki.edg.com/twiki/pub/Wg21urbana-champaign/StrawPolls/n4279.html">N4279</a></td><td>LWG</td></td><td>Improved insertion interface for unique-key maps.</td><td>Urbana</td><td></td><td></td></tr>
- <tr><td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2014/n3911">N3911</a></td><td>LWG</td></td><td>TransformationTrait Alias <code>void_t</code>.</td><td>Urbana</td><td>Complete</td><td>3.6</td></tr>
- <tr><td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2014/n4169">N4169</a></td><td>LWG</td></td><td>A proposal to add invoke function template</td><td>Urbana</td><td></td><td></td></tr>
- <tr><td><a href="http://wiki.edg.com/twiki/pub/Wg21urbana-champaign/StrawPolls/n4280.pdf">N4280</a></td><td>LWG</td></td><td>Non-member size() and more</td><td>Urbana</td><td></td><td></td></tr>
+ <tr><td><a href="http://wiki.edg.com/twiki/pub/Wg21urbana-champaign/StrawPolls/n4280.pdf">N4280</a></td><td>LWG</td></td><td>Non-member size() and more</td><td>Urbana</td><td>Complete</td><td>3.6</td></tr>
+ <tr><td><a href="http://wiki.edg.com/twiki/pub/Wg21urbana-champaign/StrawPolls/n4284.html">N4284</a></td><td>LWG</td></td><td>Contiguous Iterators.</td><td>Urbana</td><td></td><td></td></tr>
<!-- <tr><td></td><td></td><td></td><td></td><td></td><td></td></tr> -->
</table>
More information about the cfe-commits
mailing list