29 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: c++03, c++1110// <shared_mutex>11 12// template <class Mutex> class shared_lock;13 14// shared_lock& operator=(shared_lock const&) = delete;15 16#include <shared_mutex>17 18std::shared_timed_mutex m0;19std::shared_timed_mutex m1;20 21int main(int, char**)22{23 std::shared_lock<std::shared_timed_mutex> lk0(m0);24 std::shared_lock<std::shared_timed_mutex> lk1(m1);25 lk1 = lk0;26 27 return 0;28}29