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37d13ae6 | 1 | // { dg-do run { target *-*-freebsd* *-*-dragonfly* *-*-netbsd* *-*-linux* *-*-gnu* *-*-solaris* *-*-cygwin *-*-rtems* *-*-darwin* powerpc-ibm-aix* } } |
71c54f8e JW |
2 | // { dg-options "-pthread" { target *-*-freebsd* *-*-dragonfly* *-*-netbsd* *-*-linux* *-*-gnu* powerpc-ibm-aix* *-*-solaris* } } |
3 | // { dg-require-effective-target c++11 } | |
be8de894 JW |
4 | // { dg-require-cstdint "" } |
5 | // { dg-require-gthreads "" } | |
6 | ||
818ab71a | 7 | // Copyright (C) 2014-2016 Free Software Foundation, Inc. |
be8de894 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 | #include <thread> | |
25 | #include <memory> | |
26 | #include <testsuite_hooks.h> | |
27 | ||
28 | struct leaddock | |
29 | { | |
30 | ~leaddock(); | |
31 | }; | |
32 | ||
33 | std::shared_ptr<leaddock> global; | |
34 | ||
35 | leaddock::~leaddock() | |
36 | { | |
37 | // If this destructor is called "inside" an atomic operation on global it | |
38 | // will deadlock, so this checks that the atomic_store is done atomically. | |
39 | auto copy = std::atomic_load(&global); | |
40 | VERIFY( !copy ); | |
41 | } | |
42 | ||
43 | void f() | |
44 | { | |
45 | std::atomic_store(&global, std::make_shared<leaddock>()); | |
46 | std::atomic_store(&global, {}); | |
47 | } | |
48 | ||
49 | int main() | |
50 | { | |
51 | std::thread{ f }.join(); | |
52 | } |