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 // test rel_ops
11 
12 #include <utility>
13 #include <cassert>
14 
15 struct A
16 {
17     int data_;
18 
19     explicit A(int data = -1) : data_(data) {}
20 };
21 
22 inline
23 bool
24 operator == (const A& x, const A& y)
25 {
26     return x.data_ == y.data_;
27 }
28 
29 inline
30 bool
31 operator < (const A& x, const A& y)
32 {
33     return x.data_ < y.data_;
34 }
35 
36 int main()
37 {
38     using namespace std::rel_ops;
39     A a1(1);
40     A a2(2);
41     assert(a1 == a1);
42     assert(a1 != a2);
43     assert(a1 < a2);
44     assert(a2 > a1);
45     assert(a1 <= a1);
46     assert(a1 <= a2);
47     assert(a2 >= a2);
48     assert(a2 >= a1);
49 }
50