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// { 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 <chrono>

#include <testsuite_common_types.h>

namespace __gnu_test

{

  struct constexpr_member_data

  {

    template<typename _Ttesttype>

      void

      operator()()

      {

        struct _Concept

        {

          void __constraint()

          {

            constexpr auto v1 __attribute__((unused))

              = _Ttesttype::is_steady;

          }

        };

        _Concept c;

        c.__constraint();

      }

  };

}

int main()

{

  __gnu_test::constexpr_member_data test;

  test.operator()<std::chrono::steady_clock>();

  return 0;

}