1 // { dg-do run } 2 // { dg-additional-options "-pthread" { target pthread } } 3 // { dg-require-effective-target c++11 } 4 // { dg-require-gthreads "" } 5 6 // Copyright (C) 2009-2021 Free Software Foundation, Inc. 7 // 8 // This file is part of the GNU ISO C++ Library. This library is free 9 // software; you can redistribute it and/or modify it under the 10 // terms of the GNU General Public License as published by the 11 // Free Software Foundation; either version 3, or (at your option) 12 // any later version. 13 14 // This library is distributed in the hope that it will be useful, 15 // but WITHOUT ANY WARRANTY; without even the implied warranty of 16 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 17 // GNU General Public License for more details. 18 19 // You should have received a copy of the GNU General Public License along 20 // with this library; see the file COPYING3. If not see 21 // <http://www.gnu.org/licenses/>. 22 23 24 #include <future> 25 #include <chrono> 26 #include <testsuite_hooks.h> 27 make_time(int i)28std::chrono::system_clock::time_point make_time(int i) 29 { 30 return std::chrono::system_clock::now() + std::chrono::milliseconds(i); 31 } 32 test01()33void test01() 34 { 35 std::promise<int> p1; 36 std::future<int> f1(p1.get_future()); 37 38 auto when = make_time(10); 39 VERIFY( f1.wait_until(when) == std::future_status::timeout ); 40 VERIFY( std::chrono::system_clock::now() >= when ); 41 42 p1.set_value(1); 43 44 when = make_time(100); 45 VERIFY( f1.wait_until(when) == std::future_status::ready ); 46 VERIFY( std::chrono::system_clock::now() < when ); 47 } 48 main()49int main() 50 { 51 test01(); 52 return 0; 53 } 54