libstdc++-v3/testsuite/30_threads/condition_variable/members/53841.cc

   1 // { dg-do compile { target *-*-freebsd* *-*-dragonfly* *-*-netbsd* *-*-linux* *-*-gnu* *-*-solaris* *-*-cygwin *-*-rtems* *-*-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 *-*-rtems* *-*-darwin* } }
   5 // { dg-require-cstdint "" }
   6 // { dg-require-gthreads "" }
   7
   8 // Copyright (C) 2012-2016 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
  31 namespace ch = std::chrono;
  32
  33 struct 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
  44 void 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 }