[libcxx] r187552 - Constrain fill_n -> memset operations to include implicit convertibility to unsigned char. This fixes http://llvm.org/bugs/show_bug.cgi?id=16764. Also a drive-by fix on a chrono test suite bug.

[Howard Hinnant]

Author: hhinnant
Date: Wed Jul 31 19:41:55 2013
New Revision: 187552

URL: http://llvm.org/viewvc/llvm-project?rev=187552&view=rev
Log:
Constrain fill_n -> memset operations to include implicit convertibility to unsigned char.  This fixes http://llvm.org/bugs/show_bug.cgi?id=16764.  Also a drive-by fix on a chrono test suite bug.

Modified:
    libcxx/trunk/include/algorithm
    libcxx/trunk/test/utilities/time/time.duration/time.duration.cons/default.pass.cpp

Modified: libcxx/trunk/include/algorithm
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/include/algorithm?rev=187552&r1=187551&r2=187552&view=diff
==============================================================================
--- libcxx/trunk/include/algorithm (original)
+++ libcxx/trunk/include/algorithm Wed Jul 31 19:41:55 2013
@@ -2012,6 +2012,7 @@ fill_n(_OutputIterator __first, _Size __
    return _VSTD::__fill_n(__first, __n, __value_, integral_constant<bool,
                                               is_pointer<_OutputIterator>::value &&
                                               is_trivially_assignable<typename remove_pointer<_OutputIterator>::type, _Tp>::value &&
+                                              is_convertible<_Tp, unsigned char>::value &&
                                               sizeof(typename remove_pointer<_OutputIterator>::type) == 1>());
 }
 

Modified: libcxx/trunk/test/utilities/time/time.duration/time.duration.cons/default.pass.cpp
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/test/utilities/time/time.duration/time.duration.cons/default.pass.cpp?rev=187552&r1=187551&r2=187552&view=diff
==============================================================================
--- libcxx/trunk/test/utilities/time/time.duration/time.duration.cons/default.pass.cpp (original)
+++ libcxx/trunk/test/utilities/time/time.duration/time.duration.cons/default.pass.cpp Wed Jul 31 19:41:55 2013
@@ -27,7 +27,7 @@ test()
     D d;
     assert(d.count() == typename D::rep());
 #ifndef _LIBCPP_HAS_NO_CONSTEXPR
-    constexpr D d2;
+    constexpr D d2 = D();
     static_assert(d2.count() == typename D::rep(), "");
 #endif
 }