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(unique_lock&& u);
14 
15 #include <cassert>
16 #include <memory>
17 #include <mutex>
18 #include <type_traits>
19 
20 #include "checking_mutex.h"
21 #include "test_macros.h"
22 
23 #if TEST_STD_VER >= 11
24 static_assert(std::is_nothrow_move_constructible<std::unique_lock<checking_mutex>>::value, "");
25 #endif
26 
27 int main(int, char**) {
28   checking_mutex m;
29   std::unique_lock<checking_mutex> lk0(m);
30   std::unique_lock<checking_mutex> lk = std::move(lk0);
31 
32   assert(lk.mutex() == std::addressof(m));
33   assert(lk.owns_lock());
34   assert(lk0.mutex() == nullptr);
35   assert(!lk0.owns_lock());
36 
37   return 0;
38 }
39