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 // typename common_type<Duration1, Duration2>::type
16 // operator-(const time_point<Clock, Duration1>& lhs, const time_point<Clock, Duration2>& rhs);
17
18 #include <chrono>
19 #include <cassert>
20
21 #include "test_macros.h"
22
main()23 int main()
24 {
25 typedef std::chrono::system_clock Clock;
26 typedef std::chrono::milliseconds Duration1;
27 typedef std::chrono::microseconds Duration2;
28 {
29 std::chrono::time_point<Clock, Duration1> t1(Duration1(3));
30 std::chrono::time_point<Clock, Duration2> t2(Duration2(5));
31 assert((t1 - t2) == Duration2(2995));
32 }
33 #if TEST_STD_VER > 11
34 {
35 constexpr std::chrono::time_point<Clock, Duration1> t1(Duration1(3));
36 constexpr std::chrono::time_point<Clock, Duration2> t2(Duration2(5));
37 static_assert((t1 - t2) == Duration2(2995), "");
38 }
39 #endif
40 }
41