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 Rep2, class Period2>
15 // time_point<Clock, typename common_type<Duration1, duration<Rep2, Period2>>::type>
16 // operator+(const time_point<Clock, Duration1>& lhs, const duration<Rep2, Period2>& rhs);
17
18 // template <class Rep1, class Period1, class Clock, class Duration2>
19 // time_point<Clock, typename common_type<duration<Rep1, Period1>, Duration2>::type>
20 // operator+(const duration<Rep1, Period1>& lhs, const time_point<Clock, Duration2>& rhs);
21
22 #include <chrono>
23 #include <cassert>
24
main()25 int main()
26 {
27 typedef std::chrono::system_clock Clock;
28 typedef std::chrono::milliseconds Duration1;
29 typedef std::chrono::microseconds Duration2;
30 {
31 std::chrono::time_point<Clock, Duration1> t1(Duration1(3));
32 std::chrono::time_point<Clock, Duration2> t2 = t1 + Duration2(5);
33 assert(t2.time_since_epoch() == Duration2(3005));
34 t2 = Duration2(6) + t1;
35 assert(t2.time_since_epoch() == Duration2(3006));
36 }
37 #if _LIBCPP_STD_VER > 11
38 {
39 constexpr std::chrono::time_point<Clock, Duration1> t1(Duration1(3));
40 constexpr std::chrono::time_point<Clock, Duration2> t2 = t1 + Duration2(5);
41 static_assert(t2.time_since_epoch() == Duration2(3005), "");
42 constexpr std::chrono::time_point<Clock, Duration2> t3 = Duration2(6) + t1;
43 static_assert(t3.time_since_epoch() == Duration2(3006), "");
44 }
45 #endif
46 }
47