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d1236680 RO |
1 | // { dg-do run } |
2 | // { dg-options "-pthread" } | |
71c54f8e | 3 | // { dg-require-effective-target c++11 } |
d1236680 | 4 | // { dg-require-effective-target pthread } |
c910ceff | 5 | // { dg-require-gthreads "" } |
c910ceff | 6 | |
a5544970 | 7 | // Copyright (C) 2009-2019 Free Software Foundation, Inc. |
c910ceff JW |
8 | // |
9 | // This file is part of the GNU ISO C++ Library. This library is free | |
10 | // software; you can redistribute it and/or modify it under the | |
11 | // terms of the GNU General Public License as published by the | |
12 | // Free Software Foundation; either version 3, or (at your option) | |
13 | // any later version. | |
14 | ||
15 | // This library is distributed in the hope that it will be useful, | |
16 | // but WITHOUT ANY WARRANTY; without even the implied warranty of | |
17 | // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
18 | // GNU General Public License for more details. | |
19 | ||
20 | // You should have received a copy of the GNU General Public License along | |
21 | // with this library; see the file COPYING3. If not see | |
22 | // <http://www.gnu.org/licenses/>. | |
23 | ||
24 | ||
25 | #include <future> | |
26 | #include <testsuite_hooks.h> | |
27 | ||
28 | int& inc(int& i) { return ++i; } | |
29 | ||
30 | void test01() | |
31 | { | |
c910ceff | 32 | std::packaged_task<int&(int&)> p1(inc); |
b3eed6fe | 33 | std::future<int&> f1 = p1.get_future(); |
c910ceff | 34 | |
488b3e65 | 35 | std::chrono::milliseconds delay(1); |
b3eed6fe | 36 | VERIFY( f1.valid() ); |
488b3e65 | 37 | VERIFY( f1.wait_for(delay) == std::future_status::timeout ); |
c910ceff JW |
38 | |
39 | int i1 = 0; | |
40 | ||
41 | p1(i1); | |
42 | ||
43 | int& i2 = f1.get(); | |
44 | ||
45 | VERIFY( &i1 == &i2 ); | |
46 | VERIFY( i1 == 1 ); | |
47 | } | |
48 | ||
49 | int main() | |
50 | { | |
51 | test01(); | |
52 | return 0; | |
53 | } |