1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
|
//===----------------------------------------------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is dual licensed under the MIT and the University of Illinois Open
// Source Licenses. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
// <shared_mutex>
// template <class Mutex> class shared_lock;
// shared_lock(mutex_type& m, adopt_lock_t);
#include <shared_mutex>
#include <cassert>
int main()
{
#if _LIBCPP_STD_VER > 11
std::shared_timed_mutex m;
m.lock();
std::shared_lock<std::shared_timed_mutex> lk(m, std::adopt_lock);
assert(lk.mutex() == &m);
assert(lk.owns_lock() == true);
#endif // _LIBCPP_STD_VER > 11
}
|
