1// { dg-do compile }
2// { dg-options "-std=gnu++11" }
3
4// Copyright (C) 2010-2015 Free Software Foundation, Inc.
5//
6// This file is part of the GNU ISO C++ Library.  This library is free
7// software; you can redistribute it and/or modify it under the
8// terms of the GNU General Public License as published by the
9// Free Software Foundation; either version 3, or (at your option)
10// any later version.
11
12// This library is distributed in the hope that it will be useful,
13// but WITHOUT ANY WARRANTY; without even the implied warranty of
14// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15// GNU General Public License for more details.
16
17// You should have received a copy of the GNU General Public License along
18// with this library; see the file COPYING3.  If not see
19// <http://www.gnu.org/licenses/>.
20
21#include <chrono>
22#include <testsuite_common_types.h>
23
24namespace __gnu_test
25{
26  struct constexpr_member_data
27  {
28    template<typename _Ttesttype>
29      void
30      operator()()
31      {
32	struct _Concept
33	{
34	  void __constraint()
35	  {
36	    constexpr auto v1 __attribute__((unused))
37	      = _Ttesttype::is_steady;
38	  }
39	};
40
41	_Concept c;
42	c.__constraint();
43      }
44  };
45}
46
47int main()
48{
49  __gnu_test::constexpr_member_data test;
50  test.operator()<std::chrono::system_clock>();
51  return 0;
52}
53