1 files changed, 67 insertions, 0 deletions
diff --git a/libstdc++-v3/testsuite/21_strings/char_traits/requirements/constexpr_functions.cc b/libstdc++-v3/testsuite/21_strings/char_traits/requirements/constexpr_functions.cc
new file mode 100644
index 00000000000..ecb9a3e243a
--- /dev/null
+++ b/libstdc++-v3/testsuite/21_strings/char_traits/requirements/constexpr_functions.cc
@@ -0,0 +1,67 @@
+// { dg-do compile }
+// { dg-options "-std=gnu++0x" }
+
+// Copyright (C) 2010 Free Software Foundation, Inc.
+//
+// This file is part of the GNU ISO C++ Library.  This library is free
+// software; you can redistribute it and/or modify it under the
+// terms of the GNU General Public License as published by the
+// Free Software Foundation; either version 3, or (at your option)
+// any later version.
+
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License along
+// with this library; see the file COPYING3.  If not see
+// <http://www.gnu.org/licenses/>.
+
+#include <string>
+#include <testsuite_common_types.h>
+
+namespace __gnu_test
+{
+  struct constexpr_member_functions
+  {
+    template<typename _Ttesttype>
+      void
+      operator()()
+      {
+	struct _Concept
+	{
+	  void __constraint()
+	  { 
+	    typedef typename _Ttesttype::char_type char_type;
+	    typedef typename _Ttesttype::int_type int_type;
+	    const char_type c1(0);
+	    const char_type c2 = c1;
+	    const int_type i(0);
+	    constexpr auto v1(_Ttesttype::eq(c1, c2));
+	    constexpr auto v2(_Ttesttype::lt(c1, c2));
+	    constexpr auto v3(_Ttesttype::to_char_type(i));
+	    constexpr auto v4(_Ttesttype::to_int_type(c1));
+	    constexpr auto v5(_Ttesttype::eq_int_type(i, i));
+	    constexpr auto v6(_Ttesttype::eof());
+	    constexpr auto v7(_Ttesttype::not_eof(i));
+	  }
+	};
+
+	_Concept c;
+	c.__constraint();
+      }
+  };
+}
+
+int main()
+{
+  __gnu_test::constexpr_member_functions test;
+  test.operator()<std::char_traits<char>>();
+#ifdef _GLIBCXX_USE_WCHAR_T
+  test.operator()<std::char_traits<wchar_t>>();
+#endif
+  test.operator()<std::char_traits<char16_t>>();
+  test.operator()<std::char_traits<char32_t>>();
+  return 0;
+}