xref: /llvm-project-15.0.7/libcxx/test/std/time/time.duration/time.duration.cons/convert_inexact.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>

// duration

// template <class Rep2, class Period2>
//   duration(const duration<Rep2, Period2>& d);

// inexact conversions allowed for floating point reps

#include <chrono>
#include <cassert>
#include <ratio>

#include "test_macros.h"

int main(int, char**)
{
    {
    std::chrono::duration<double, std::micro> us(1);
    std::chrono::duration<double, std::milli> ms = us;
    assert(ms.count() == 1./1000);
    }
#if TEST_STD_VER >= 11
    {
    constexpr std::chrono::duration<double, std::micro> us(1);
    constexpr std::chrono::duration<double, std::milli> ms = us;
    static_assert(ms.count() == 1./1000, "");
    }
#endif

  return 0;
}