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// <chrono>
10
11// time_point
12
13// template <class Clock, class Duration1, class Rep2, class Period2>
14// time_point<Clock, typename common_type<Duration1, duration<Rep2, Period2>>::type>
15// operator+(const time_point<Clock, Duration1>& lhs, const duration<Rep2, Period2>& rhs);
16
17// template <class Rep1, class Period1, class Clock, class Duration2>
18// time_point<Clock, typename common_type<duration<Rep1, Period1>, Duration2>::type>
19// operator+(const duration<Rep1, Period1>& lhs, const time_point<Clock, Duration2>& rhs);
20
21#include <chrono>
22#include <cassert>
23
24#include "test_macros.h"
25
26int main(int, char**)
27{
28 typedef std::chrono::system_clock Clock;
29 typedef std::chrono::milliseconds Duration1;
30 typedef std::chrono::microseconds Duration2;
31 {
32 std::chrono::time_point<Clock, Duration1> t1(Duration1(3));
33 std::chrono::time_point<Clock, Duration2> t2 = t1 + Duration2(5);
34 assert(t2.time_since_epoch() == Duration2(3005));
35 t2 = Duration2(6) + t1;
36 assert(t2.time_since_epoch() == Duration2(3006));
37 }
38#if TEST_STD_VER > 11
39 {
40 constexpr std::chrono::time_point<Clock, Duration1> t1(Duration1(3));
41 constexpr std::chrono::time_point<Clock, Duration2> t2 = t1 + Duration2(5);
42 static_assert(t2.time_since_epoch() == Duration2(3005), "");
43 constexpr std::chrono::time_point<Clock, Duration2> t3 = Duration2(6) + t1;
44 static_assert(t3.time_since_epoch() == Duration2(3006), "");
45 }
46#endif
47
48 return 0;
49}
50

source code of libcxx/test/std/time/time.point/time.point.nonmember/op_+.pass.cpp