libstdc++-v3/testsuite/30_threads/promise/cons/move.cc

   1 // { dg-do run }
   2 // { dg-options "-pthread"  }
   3 // { dg-require-effective-target c++11 }
   4 // { dg-require-effective-target pthread }
   5 // { dg-require-cstdint "" }
   6 // { dg-require-gthreads "" }
   7
   8 // Copyright (C) 2009-2017 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
  26 #include <future>
  27 #include <testsuite_hooks.h>
  28
  29 void test01()
  30 {
  31   using namespace std;
  32
  33   // move assign
  34   promise<int> p1;
  35   p1.set_value(3);
  36   promise<int> p2(std::move(p1));
  37   VERIFY( p2.get_future().get() == 3 );
  38   try
  39   {
  40     p1.get_future();
  41     VERIFY( false );
  42   }
  43   catch (std::future_error& e)
  44   {
  45     VERIFY(e.code() == make_error_code(future_errc::no_state));
  46   }
  47 }
  48
  49 int main()
  50 {
  51   test01();
  52   return 0;
  53 }