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git.ipfire.org Git - thirdparty/gcc.git/blob - libstdc++-v3/testsuite/20_util/duration/arithmetic/constexpr_c++17.cc
1 // { dg-options "-std=gnu++17" }
2 // { dg-do compile { target c++17 } }
4 // Copyright (C) 2011-2018 Free Software Foundation, Inc.
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)
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.
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/>.
22 #include <testsuite_common_types.h>
24 #ifndef __cpp_lib_chrono
25 # error "Feature-test macro for constexpr <chrono> missing"
26 #elif __cpp_lib_chrono != 201611
27 # error "Feature-test macro for constexpr <chrono> has wrong value"
30 constexpr auto test_operators()
32 std::chrono::nanoseconds d1
{ 1 };
51 constexpr auto d4
= test_operators();