43 lines · cpp
1//===----------------------------------------------------------------------===//2//3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.4// See https://llvm.org/LICENSE.txt for license information.5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception6//7//===----------------------------------------------------------------------===//8 9// <mutex>10 11// template <class Mutex> class unique_lock;12 13// mutex_type* release() noexcept;14 15#include <cassert>16#include <memory>17#include <mutex>18 19#include "checking_mutex.h"20#include "test_macros.h"21 22#if TEST_STD_VER >= 1123static_assert(noexcept(std::declval<std::unique_lock<checking_mutex>&>().release()), "");24#endif25 26int main(int, char**) {27 checking_mutex mux;28 std::unique_lock<checking_mutex> lock(mux);29 assert(lock.mutex() == std::addressof(mux));30 assert(lock.owns_lock());31 32 assert(mux.current_state == checking_mutex::locked_via_lock);33 34 assert(lock.release() == std::addressof(mux));35 assert(lock.mutex() == nullptr);36 assert(!lock.owns_lock());37 assert(mux.last_try == checking_mutex::locked_via_lock);38 assert(mux.current_state == checking_mutex::locked_via_lock);39 mux.unlock();40 41 return 0;42}43