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 // <mutex>
11
12 // class recursive_mutex;
13
14 // typedef pthread_mutex_t* native_handle_type;
15 // native_handle_type native_handle();
16
17 #include <mutex>
18 #include <cassert>
19
main()20 int main()
21 {
22 std::recursive_mutex m;
23 pthread_mutex_t* h = m.native_handle();
24 assert(h);
25 }
26