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1 | // { dg-do run } | |
2 | // { dg-options "-pthread" } | |
3 | // { dg-require-effective-target c++11 } | |
4 | // { dg-require-effective-target pthread } | |
5 | // { dg-require-gthreads "" } | |
6 | ||
7 | // Copyright (C) 2009-2020 Free Software Foundation, Inc. | |
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 value = 99; | |
29 | ||
30 | void test01() | |
31 | { | |
32 | std::promise<int> p1; | |
33 | const std::shared_future<int> f1(p1.get_future()); | |
34 | std::shared_future<int> f2(f1); | |
35 | ||
36 | p1.set_value(value); | |
37 | VERIFY( f1.get() == value ); | |
38 | VERIFY( f2.get() == value ); | |
39 | } | |
40 | ||
41 | void test02() | |
42 | { | |
43 | std::promise<int&> p1; | |
44 | const std::shared_future<int&> f1(p1.get_future()); | |
45 | std::shared_future<int&> f2(f1); | |
46 | ||
47 | p1.set_value(value); | |
48 | VERIFY( &f1.get() == &value ); | |
49 | VERIFY( &f2.get() == &value ); | |
50 | } | |
51 | ||
52 | void test03() | |
53 | { | |
54 | std::promise<void> p1; | |
55 | const std::shared_future<void> f1(p1.get_future()); | |
56 | std::shared_future<void> f2(f1); | |
57 | ||
58 | p1.set_value(); | |
59 | f1.get(); | |
60 | f2.get(); | |
61 | } | |
62 | ||
63 | int main() | |
64 | { | |
65 | test01(); | |
66 | test02(); | |
67 | test03(); | |
68 | ||
69 | return 0; | |
70 | } |