1// { dg-do compile { target *-*-freebsd* *-*-dragonfly* *-*-netbsd* *-*-linux* *-*-gnu* *-*-solaris* *-*-cygwin *-*-darwin* powerpc-ibm-aix* hppa*-hp-hpux11* } } 2// { dg-options " -std=gnu++11 -pthread" { target *-*-freebsd* *-*-dragonfly* *-*-netbsd* *-*-linux* *-*-gnu* powerpc-ibm-aix* hppa*-hp-hpux11* } } 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 8// Copyright (C) 2012-2015 Free Software Foundation, Inc. 9// 10// This file is part of the GNU ISO C++ Library. This library is free 11// software; you can redistribute it and/or modify it under the 12// terms of the GNU General Public License as published by the 13// Free Software Foundation; either version 3, or (at your option) 14// any later version. 15 16// This library is distributed in the hope that it will be useful, 17// but WITHOUT ANY WARRANTY; without even the implied warranty of 18// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 19// GNU General Public License for more details. 20 21// You should have received a copy of the GNU General Public License along 22// with this library; see the file COPYING3. If not see 23// <http://www.gnu.org/licenses/>. 24 25// PR libstdc++/53841 26 27#include <chrono> 28#include <mutex> 29#include <condition_variable> 30 31namespace ch = std::chrono; 32 33struct FPClock : ch::system_clock 34{ 35 typedef double rep; 36 typedef std::ratio<1> period; 37 typedef ch::duration<rep, period> duration; 38 typedef ch::time_point<FPClock> time_point; 39 40 static time_point now() 41 { return time_point(duration(system_clock::now().time_since_epoch())); } 42}; 43 44void f() 45{ 46 std::mutex mx; 47 std::unique_lock<std::mutex> l(mx); 48 std::condition_variable cv; 49 cv.wait_until(l, FPClock::now()); 50} 51