libstdc++-v3/testsuite/30_threads/packaged_task/members/reset.cc

   1 // { dg-do run { target *-*-freebsd* *-*-netbsd* *-*-linux* *-*-solaris* *-*-cygwin *-*-darwin* alpha*-*-osf* mips-sgi-irix6* } }
   2 // { dg-options " -std=gnu++0x -pthread" { target *-*-freebsd* *-*-netbsd* *-*-linux* alpha*-*-osf* mips-sgi-irix6* } }
   3 // { dg-options " -std=gnu++0x -pthreads" { target *-*-solaris* } }
   4 // { dg-options " -std=gnu++0x " { target *-*-cygwin *-*-darwin* } }
   5 // { dg-require-cstdint "" }
   6 // { dg-require-gthreads "" }
   7 // { dg-require-atomic-builtins "" }
   8
   9 // Copyright (C) 2009 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 <system_error>
  29 #include <testsuite_hooks.h>
  30
  31 int zero() { return 0; }
  32
  33 void test01()
  34 {
  35   bool test = false;
  36   using namespace std;
  37
  38   packaged_task<int()> p1(zero);
  39   unique_future<int> f1 = p1.get_future();
  40
  41   p1.reset();
  42   VERIFY( static_cast<bool>(p1) );
  43
  44   unique_future<int> f2 = p1.get_future();
  45   VERIFY( !f2.is_ready() );
  46
  47   VERIFY( f1.has_exception() );
  48   try
  49   {
  50     f1.get();
  51   }
  52   catch (future_error& e)
  53   {
  54     VERIFY( e.code() == make_error_code(future_errc::broken_promise) );
  55     test = true;
  56   }
  57
  58   VERIFY( test );
  59 }
  60
  61 int main()
  62 {
  63   test01();
  64   return 0;
  65 }