libcxx/test/std/time/time.point/time.point.cons/default.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 // time_point();
  14
  15 #include <chrono>
  16 #include <cassert>
  17 #include <ratio>
  18
  19 #include "test_macros.h"
  20 #include "../../rep.h"
  21
  22 int main(int, char**)
  23 {
  24     typedef std::chrono::system_clock Clock;
  25     typedef std::chrono::duration<Rep, std::milli> Duration;
  26     {
  27     std::chrono::time_point<Clock, Duration> t;
  28     assert(t.time_since_epoch() == Duration::zero());
  29     }
  30 #if TEST_STD_VER > 11
  31     {
  32     constexpr std::chrono::time_point<Clock, Duration> t;
  33     static_assert(t.time_since_epoch() == Duration::zero(), "");
  34     }
  35 #endif
  36
  37   return 0;
  38 }