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-exception
6//
7//===----------------------------------------------------------------------===//
8
9// <mutex>
10
11// template <class Mutex> class unique_lock;
12
13// unique_lock& operator=(unique_lock&& u);
14
15#include <cassert>
16#include <memory>
17#include <mutex>
18
19#include "checking_mutex.h"
20
21int main(int, char**) {
22 checking_mutex m0;
23 checking_mutex m1;
24 std::unique_lock<checking_mutex> lk0(m0);
25 std::unique_lock<checking_mutex> lk1(m1);
26
27 auto& result = (lk1 = std::move(lk0));
28
29 assert(&result == &lk1);
30 assert(lk1.mutex() == std::addressof(m0));
31 assert(lk1.owns_lock());
32 assert(lk0.mutex() == nullptr);
33 assert(!lk0.owns_lock());
34
35 return 0;
36}
37

source code of libcxx/test/std/thread/thread.mutex/thread.lock/thread.lock.unique/thread.lock.unique.cons/move_assign.pass.cpp