| // { dg-options "-std=gnu++2a -pthread" } |
| // { dg-do run { target c++2a } } |
| // { dg-require-effective-target pthread } |
| // { dg-require-gthreads "" } |
| // { 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/>. |
| |
| #include <atomic> |
| #include <thread> |
| |
| #include <testsuite_hooks.h> |
| |
| template<typename S> |
| void |
| test (S va, S vb) |
| { |
| if constexpr (std::atomic_ref<S>::is_always_lock_free) |
| { |
| S aa{ va }; |
| std::atomic_ref<S> a{ aa }; |
| a.wait(vb); |
| std::thread t([&] |
| { |
| a.store(vb); |
| a.notify_one(); |
| }); |
| a.wait(va); |
| t.join(); |
| } |
| } |
| |
| int |
| main () |
| { |
| test<int>(0, 42); |
| test<long>(0, 42); |
| test<unsigned>(0u, 42u); |
| test<float>(0.0f, 42.0f); |
| test<double>(0.0, 42.0); |
| test<void*>(nullptr, reinterpret_cast<void*>(42)); |
| |
| struct S{ int i; }; |
| test<S>(S{ 0 }, S{ 42 }); |
| return 0; |
| } |