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 // UNSUPPORTED: no-threads
10 // UNSUPPORTED: c++03, c++11
11 
12 // dylib support for shared_mutex was added in macosx10.12
13 // XFAIL: use_system_cxx_lib && target={{.+}}-apple-macosx10.{{9|10|11}}
14 
15 // <shared_mutex>
16 
17 // template <class Mutex> class shared_lock;
18 
19 // shared_lock(shared_lock&& u);
20 
21 #include <shared_mutex>
22 #include <cassert>
23 #include "nasty_containers.h"
24 
25 #include "test_macros.h"
26 
main(int,char **)27 int main(int, char**)
28 {
29     {
30     typedef std::shared_timed_mutex M;
31     M m;
32     std::shared_lock<M> lk0(m);
33     std::shared_lock<M> lk = std::move(lk0);
34     assert(lk.mutex() == std::addressof(m));
35     assert(lk.owns_lock() == true);
36     assert(lk0.mutex() == nullptr);
37     assert(lk0.owns_lock() == false);
38     }
39     {
40     typedef nasty_mutex M;
41     M m;
42     std::shared_lock<M> lk0(m);
43     std::shared_lock<M> lk = std::move(lk0);
44     assert(lk.mutex() == std::addressof(m));
45     assert(lk.owns_lock() == true);
46     assert(lk0.mutex() == nullptr);
47     assert(lk0.owns_lock() == false);
48     }
49 
50   return 0;
51 }
52