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 // UNSUPPORTED: libcpp-has-no-threads
11 // UNSUPPORTED: c++03, c++98, c++11, c++14
12 
13 // <shared_mutex>
14 
15 // class shared_mutex;
16 
17 // shared_mutex();
18 
19 #include <shared_mutex>
20 
main()21 int main()
22 {
23     std::shared_mutex m;
24 }
25