1 //===----------------------------------------------------------------------===//
2 //
3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4 // See https://llvm.org/LICENSE.txt for license information.
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6 //
7 //===----------------------------------------------------------------------===//
8 //
9 // UNSUPPORTED: libcpp-has-no-threads
10 
11 // <thread>
12 
13 // class thread::id
14 
15 // bool operator< (thread::id x, thread::id y);
16 // bool operator<=(thread::id x, thread::id y);
17 // bool operator> (thread::id x, thread::id y);
18 // bool operator>=(thread::id x, thread::id y);
19 
20 #include <thread>
21 #include <cassert>
22 
23 int main(int, char**)
24 {
25     std::thread::id id0;
26     std::thread::id id1;
27     std::thread::id id2 = std::this_thread::get_id();
28     assert(!(id0 <  id1));
29     assert( (id0 <= id1));
30     assert(!(id0 >  id1));
31     assert( (id0 >= id1));
32     assert(!(id0 == id2));
33     if (id0 < id2) {
34       assert( (id0 <= id2));
35       assert(!(id0 >  id2));
36       assert(!(id0 >= id2));
37     } else {
38       assert(!(id0 <= id2));
39       assert( (id0 >  id2));
40       assert( (id0 >= id2));
41     }
42 
43   return 0;
44 }
45