1 // { dg-do compile { target c++11 } }
2
3 // Copyright (C) 2011-2018 Free Software Foundation, Inc.
4 //
5 // This file is part of the GNU ISO C++ Library. This library is free
6 // software; you can redistribute it and/or modify it under the
7 // terms of the GNU General Public License as published by the
8 // Free Software Foundation; either version 3, or (at your option)
9 // any later version.
10
11 // This library is distributed in the hope that it will be useful,
12 // but WITHOUT ANY WARRANTY; without even the implied warranty of
13 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 // GNU General Public License for more details.
15
16 // You should have received a copy of the GNU General Public License along
17 // with this library; see the file COPYING3. If not see
18 // <http://www.gnu.org/licenses/>.
19
20 #include <chrono>
21 #include <testsuite_common_types.h>
22
main()23 int main()
24 {
25 constexpr std::chrono::nanoseconds d1 { };
26 constexpr auto d2(+d1);
27 constexpr auto d3(-d2);
28 return 0;
29 }
30