33 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// unique_lock();14 15#include <cassert>16#include <mutex>17#include <type_traits>18 19#include "checking_mutex.h"20#include "test_macros.h"21 22#if TEST_STD_VER >= 1123static_assert(std::is_nothrow_default_constructible<std::unique_lock<checking_mutex>>::value, "");24#endif25 26int main(int, char**) {27 std::unique_lock<checking_mutex> ul;28 assert(!ul.owns_lock());29 assert(ul.mutex() == nullptr);30 31 return 0;32}33