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62d19588 | 1 | // { dg-options "-std=gnu++2a" } |
83a1beee | 2 | // { dg-do run { target c++2a } } |
83a1beee | 3 | // { dg-require-gthreads "" } |
62d19588 | 4 | // { dg-additional-options "-pthread" { target pthread } } |
71dc5ae5 | 5 | // { dg-add-options libatomic } |
83a1beee | 6 | |
83ffe9cd | 7 | // Copyright (C) 2020-2023 Free Software Foundation, Inc. |
83a1beee TR |
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 | #include <atomic> | |
83a1beee TR |
25 | #include <thread> |
26 | ||
27 | #include <testsuite_hooks.h> | |
28 | ||
29 | int | |
30 | main() | |
31 | { | |
83a1beee | 32 | std::atomic_flag a; |
b52aef3a TR |
33 | VERIFY( !a.test() ); |
34 | a.wait(true); | |
83a1beee | 35 | std::thread t([&] |
b52aef3a TR |
36 | { |
37 | a.test_and_set(); | |
38 | a.notify_one(); | |
39 | }); | |
40 | a.wait(false); | |
83a1beee | 41 | t.join(); |
83a1beee TR |
42 | return 0; |
43 | } |