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