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93e79ed3 | 1 | // { dg-do run { target c++11 } } |
1e42d2f4 | 2 | // { dg-additional-options "-pthread" { target pthread } } |
4880236e | 3 | |
a945c346 | 4 | // Copyright (C) 2011-2024 Free Software Foundation, Inc. |
4880236e JW |
5 | // |
6 | // This file is part of the GNU ISO C++ Library. This library is free | |
7 | // software; you can redistribute it and/or modify it under the | |
8 | // terms of the GNU General Public License as published by the | |
9 | // Free Software Foundation; either version 3, or (at your option) | |
10 | // any later version. | |
11 | ||
12 | // This library is distributed in the hope that it will be useful, | |
13 | // but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | // GNU General Public License for more details. | |
16 | ||
17 | // You should have received a copy of the GNU General Public License along | |
18 | // with this library; see the file COPYING3. If not see | |
19 | // <http://www.gnu.org/licenses/>. | |
20 | ||
21 | #include <mutex> | |
22 | #include <functional> | |
23 | #include <testsuite_hooks.h> | |
24 | ||
25 | struct moveable | |
26 | { | |
27 | moveable() = default; | |
28 | moveable(moveable&&) = default; | |
29 | moveable(const moveable&) = delete; | |
30 | }; | |
31 | ||
32 | typedef decltype(std::placeholders::_1) placeholder_type; | |
33 | ||
34 | void f(moveable, placeholder_type, bool& b) { b = true; } | |
35 | ||
36 | void test01() | |
37 | { | |
38 | bool test = false; | |
39 | std::once_flag once; | |
40 | std::call_once(once, f, moveable(), std::placeholders::_1, std::ref(test)); | |
41 | VERIFY( test ); | |
42 | } | |
43 | ||
44 | int main() | |
45 | { | |
46 | test01(); | |
47 | } |