| // { dg-options "-std=gnu++2a" } |
| // { dg-do run { target c++2a } } |
| // { dg-require-gthreads "" } |
| // { dg-additional-options "-pthread" { target pthread } } |
| // { dg-add-options libatomic } |
| |
| // Copyright (C) 2020-2021 Free Software Foundation, Inc. |
| // |
| // This file is part of the GNU ISO C++ Library. This library is free |
| // software; you can redistribute it and/or modify it under the |
| // terms of the GNU General Public License as published by the |
| // Free Software Foundation; either version 3, or (at your option) |
| // any later version. |
| |
| // This library is distributed in the hope that it will be useful, |
| // but WITHOUT ANY WARRANTY; without even the implied warranty of |
| // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| // GNU General Public License for more details. |
| |
| // You should have received a copy of the GNU General Public License along |
| // with this library; see the file COPYING3. If not see |
| // <http://www.gnu.org/licenses/>. |
| |
| // This test is based on libcxx/test/std/thread/thread.barrier/completion.pass.cpp |
| //===----------------------------------------------------------------------===// |
| // |
| // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
| // See https://llvm.org/LICENSE.txt for license information. |
| // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #include <barrier> |
| #include <thread> |
| |
| #include <testsuite_hooks.h> |
| |
| int main(int, char**) |
| { |
| int x = 0; |
| auto comp = [&] { x += 1; }; |
| std::barrier<decltype(comp)> b(2, comp); |
| |
| std::thread t([&](){ |
| for(int i = 0; i < 10; ++i) |
| b.arrive_and_wait(); |
| }); |
| |
| for(int i = 0; i < 10; ++i) |
| b.arrive_and_wait(); |
| |
| VERIFY( x == 10 ); |
| t.join(); |
| } |