31 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// <shared_mutex>13 14// shared_lock15 16// Make sure that the implicitly-generated CTAD works.17 18#include <shared_mutex>19 20#include "test_macros.h"21 22int main(int, char**) {23 std::shared_mutex mutex;24 {25 std::shared_lock lock(mutex);26 ASSERT_SAME_TYPE(decltype(lock), std::shared_lock<std::shared_mutex>);27 }28 29 return 0;30}31