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 // <chrono>
11 
12 // time_point
13 
14 // template <class Clock, class Duration1, class Duration2>
15 //   bool
16 //   operator==(const time_point<Clock, Duration1>& lhs, const time_point<Clock, Duration2>& rhs);
17 
18 // template <class Clock, class Duration1, class Duration2>
19 //   bool
20 //   operator!=(const time_point<Clock, Duration1>& lhs, const time_point<Clock, Duration2>& rhs);
21 
22 #include <chrono>
23 #include <cassert>
24 
25 int main()
26 {
27     typedef std::chrono::system_clock Clock;
28     typedef std::chrono::milliseconds Duration1;
29     typedef std::chrono::microseconds Duration2;
30     typedef std::chrono::time_point<Clock, Duration1> T1;
31     typedef std::chrono::time_point<Clock, Duration2> T2;
32 
33     {
34     T1 t1(Duration1(3));
35     T1 t2(Duration1(3));
36     assert( (t1 == t2));
37     assert(!(t1 != t2));
38     }
39     {
40     T1 t1(Duration1(3));
41     T1 t2(Duration1(4));
42     assert(!(t1 == t2));
43     assert( (t1 != t2));
44     }
45     {
46     T1 t1(Duration1(3));
47     T2 t2(Duration2(3000));
48     assert( (t1 == t2));
49     assert(!(t1 != t2));
50     }
51     {
52     T1 t1(Duration1(3));
53     T2 t2(Duration2(3001));
54     assert(!(t1 == t2));
55     assert( (t1 != t2));
56     }
57 
58 #if _LIBCPP_STD_VER > 11
59     {
60     constexpr T1 t1(Duration1(3));
61     constexpr T1 t2(Duration1(3));
62     static_assert( (t1 == t2), "");
63     static_assert(!(t1 != t2), "");
64     }
65     {
66     constexpr T1 t1(Duration1(3));
67     constexpr T1 t2(Duration1(4));
68     static_assert(!(t1 == t2), "");
69     static_assert( (t1 != t2), "");
70     }
71     {
72     constexpr T1 t1(Duration1(3));
73     constexpr T2 t2(Duration2(3000));
74     static_assert( (t1 == t2), "");
75     static_assert(!(t1 != t2), "");
76     }
77     {
78     constexpr T1 t1(Duration1(3));
79     constexpr T2 t2(Duration2(3001));
80     static_assert(!(t1 == t2), "");
81     static_assert( (t1 != t2), "");
82     }
83 #endif
84 }
85