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