xref: /llvm-project-15.0.7/libcxx/test/std/time/time.point/time.point.cons/duration.pass.cpp (revision 7738db2c)

//===----------------------------------------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//

// <chrono>

// time_point

// explicit time_point(const duration& d);

#include <chrono>
#include <cassert>

#include "test_macros.h"

int main(int, char**)
{
    typedef std::chrono::system_clock Clock;
    typedef std::chrono::milliseconds Duration;
    {
    std::chrono::time_point<Clock, Duration> t(Duration(3));
    assert(t.time_since_epoch() == Duration(3));
    }
    {
    std::chrono::time_point<Clock, Duration> t(std::chrono::seconds(3));
    assert(t.time_since_epoch() == Duration(3000));
    }
#if TEST_STD_VER > 11
    {
    constexpr std::chrono::time_point<Clock, Duration> t(Duration(3));
    static_assert(t.time_since_epoch() == Duration(3), "");
    }
    {
    constexpr std::chrono::time_point<Clock, Duration> t(std::chrono::seconds(3));
    static_assert(t.time_since_epoch() == Duration(3000), "");
    }
#endif

  return 0;
}