42 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// UNSUPPORTED: no-threads10// UNSUPPORTED: c++03, c++11, c++1411 12// <mutex>13 14// scoped_lock15 16// Make sure that the implicitly-generated CTAD works.17 18#include <mutex>19 20#include "test_macros.h"21 22int main(int, char**) {23 std::mutex m1;24 std::recursive_mutex m2;25 std::recursive_timed_mutex m3;26 {27 std::scoped_lock lock(m1);28 ASSERT_SAME_TYPE(decltype(lock), std::scoped_lock<std::mutex>);29 }30 {31 std::scoped_lock lock(m1, m2);32 ASSERT_SAME_TYPE(decltype(lock), std::scoped_lock<std::mutex, std::recursive_mutex>);33 }34 {35 std::scoped_lock lock(m1, m2, m3);36 ASSERT_SAME_TYPE(decltype(lock), std::scoped_lock<std::mutex, std::recursive_mutex, std::recursive_timed_mutex>);37 }38 39 return 0;40}41 42