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

   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
  26 int 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 }