default.pass.cpp revision ba898e42081aec544a04d282834aa99b13d57803 
1//===----------------------------------------------------------------------===//
2//
3//                     The LLVM Compiler Infrastructure
4//
5// This file is dual licensed under the MIT and the University of Illinois Open
6// Source Licenses. See LICENSE.TXT for details.
7//
8//===----------------------------------------------------------------------===//
9
10// <shared_mutex>
11
12// template <class Mutex> class shared_lock;
13
14// shared_lock();
15
16#include <shared_mutex>
17#include <cassert>
18
19int main()
20{
21#if _LIBCPP_STD_VER > 11
22    std::shared_lock<std::shared_mutex> ul;
23    assert(!ul.owns_lock());
24    assert(ul.mutex() == nullptr);
25#endif  // _LIBCPP_STD_VER > 11
26}
27