1// { dg-do compile } 2// { dg-options "-std=gnu++11" } 3 4// Copyright (C) 2011-2015 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_hooks.h> 23 24int main() 25{ 26 bool test __attribute__((unused)) = true; 27 using namespace std::chrono; 28 29 typedef time_point<system_clock> time_type; 30 31 constexpr time_type t1(seconds(1)); 32 constexpr time_type t2(seconds(30)); 33 constexpr time_type t3(seconds(60)); 34 35 constexpr duration<int> d0(12); 36 constexpr duration<int> d1(3); 37 38 constexpr auto r1 __attribute__((unused)) = t1 + d0; 39 constexpr auto r2 __attribute__((unused)) = d1 + t2; 40 41 constexpr auto r3 __attribute__((unused)) = t1 - d0; 42 constexpr auto r4 __attribute__((unused)) = t2 - t3; 43 44 return 0; 45} 46