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 // <condition_variable>
11 
12 // class condition_variable_any;
13 
14 // template <class Lock>
15 //   void wait(Lock& lock);
16 
17 #include <condition_variable>
18 #include <mutex>
19 #include <thread>
20 #include <cassert>
21 
22 std::condition_variable_any cv;
23 
24 typedef std::timed_mutex L0;
25 typedef std::unique_lock<L0> L1;
26 
27 L0 m0;
28 
29 int test1 = 0;
30 int test2 = 0;
31 
32 void f()
33 {
34     L1 lk(m0);
35     assert(test2 == 0);
36     test1 = 1;
37     cv.notify_one();
38     while (test2 == 0)
39         cv.wait(lk);
40     assert(test2 != 0);
41 }
42 
43 int main()
44 {
45     L1 lk(m0);
46     std::thread t(f);
47     assert(test1 == 0);
48     while (test1 == 0)
49         cv.wait(lk);
50     assert(test1 != 0);
51     test2 = 1;
52     lk.unlock();
53     cv.notify_one();
54     t.join();
55 }
56