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) 2009-2018 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 
test01()29 void test01()
30 {
31   std::promise<int> p1;
32   std::promise<int> p2;
33   p1.set_value(1);
34   p1.swap(p2);
35   auto delay = std::chrono::milliseconds(1);
36   VERIFY( p1.get_future().wait_for(delay) == std::future_status::timeout );
37   VERIFY( p2.get_future().wait_for(delay) == std::future_status::ready );
38 }
39 
main()40 int main()
41 {
42   test01();
43   return 0;
44 }
45