1// { dg-do run { target *-*-freebsd* *-*-dragonfly* *-*-netbsd* *-*-linux* *-*-gnu* *-*-solaris* *-*-cygwin *-*-darwin* powerpc-ibm-aix* } } 2// { dg-options " -std=gnu++11 -pthread" { target *-*-freebsd* *-*-dragonfly* *-*-netbsd* *-*-linux* *-*-gnu* powerpc-ibm-aix* } } 3// { dg-options " -std=gnu++11 -pthreads" { target *-*-solaris* } } 4// { dg-options " -std=gnu++11 " { target *-*-cygwin *-*-darwin* } } 5// { dg-require-cstdint "" } 6// { dg-require-gthreads "" } 7// { dg-require-atomic-builtins "" } 8 9// Copyright (C) 2009-2015 Free Software Foundation, Inc. 10// 11// This file is part of the GNU ISO C++ Library. This library is free 12// software; you can redistribute it and/or modify it under the 13// terms of the GNU General Public License as published by the 14// Free Software Foundation; either version 3, or (at your option) 15// any later version. 16 17// This library is distributed in the hope that it will be useful, 18// but WITHOUT ANY WARRANTY; without even the implied warranty of 19// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 20// GNU General Public License for more details. 21 22// You should have received a copy of the GNU General Public License along 23// with this library; see the file COPYING3. If not see 24// <http://www.gnu.org/licenses/>. 25 26 27#include <future> 28#include <chrono> 29#include <testsuite_hooks.h> 30 31void test01() 32{ 33 bool test __attribute__((unused)) = true; 34 35 std::promise<int> p1; 36 std::shared_future<int> f1(p1.get_future()); 37 std::shared_future<int> f2(f1); 38 39 std::chrono::milliseconds delay(100); 40 41 VERIFY( f1.wait_for(delay) == std::future_status::timeout ); 42 VERIFY( f2.wait_for(delay) == std::future_status::timeout ); 43 44 p1.set_value(1); 45 46 auto before = std::chrono::system_clock::now(); 47 VERIFY( f1.wait_for(delay) == std::future_status::ready ); 48 VERIFY( f2.wait_for(delay) == std::future_status::ready ); 49 VERIFY( std::chrono::system_clock::now() < (before + 2*delay) ); 50} 51 52int main() 53{ 54 test01(); 55 return 0; 56} 57