libcxx/test/std/time/time.point/time.point.cons/duration.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 // explicit time_point(const duration& d);
  14
  15 #include <chrono>
  16 #include <cassert>
  17
  18 #include "test_macros.h"
  19
  20 int main(int, char**)
  21 {
  22     typedef std::chrono::system_clock Clock;
  23     typedef std::chrono::milliseconds Duration;
  24     {
  25     std::chrono::time_point<Clock, Duration> t(Duration(3));
  26     assert(t.time_since_epoch() == Duration(3));
  27     }
  28     {
  29     std::chrono::time_point<Clock, Duration> t(std::chrono::seconds(3));
  30     assert(t.time_since_epoch() == Duration(3000));
  31     }
  32 #if TEST_STD_VER > 11
  33     {
  34     constexpr std::chrono::time_point<Clock, Duration> t(Duration(3));
  35     static_assert(t.time_since_epoch() == Duration(3), "");
  36     }
  37     {
  38     constexpr std::chrono::time_point<Clock, Duration> t(std::chrono::seconds(3));
  39     static_assert(t.time_since_epoch() == Duration(3000), "");
  40     }
  41 #endif
  42
  43   return 0;
  44 }