File: op_divide_duration.pass.cpp

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//===----------------------------------------------------------------------===//
//
// 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 Rep1, class Period1, class Rep2, class Period2>
//   constexpr
//   typename common_type<Rep1, Rep2>::type
//   operator/(const duration<Rep1, Period1>& lhs, const duration<Rep2, Period2>& rhs);

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

#include "test_macros.h"
#include "truncate_fp.h"
#include "../../rep.h"

int main(int, char**)
{
    {
    std::chrono::nanoseconds ns1(15);
    std::chrono::nanoseconds ns2(5);
    assert(ns1 / ns2 == 3);
    }
    {
    std::chrono::microseconds us1(15);
    std::chrono::nanoseconds ns2(5);
    assert(us1 / ns2 == 3000);
    }
    {
    std::chrono::duration<int, std::ratio<2, 3> > s1(30);
    std::chrono::duration<int, std::ratio<3, 5> > s2(5);
    assert(s1 / s2 == 6);
    }
    {
    std::chrono::duration<int, std::ratio<2, 3> > s1(30);
    std::chrono::duration<double, std::ratio<3, 5> > s2(5);
    assert(s1 / s2 == truncate_fp(20./3));
    }
#if TEST_STD_VER >= 11
    {
    constexpr std::chrono::nanoseconds ns1(15);
    constexpr std::chrono::nanoseconds ns2(5);
    static_assert(ns1 / ns2 == 3, "");
    }
    {
    constexpr std::chrono::microseconds us1(15);
    constexpr std::chrono::nanoseconds ns2(5);
    static_assert(us1 / ns2 == 3000, "");
    }
    {
    constexpr std::chrono::duration<int, std::ratio<2, 3> > s1(30);
    constexpr std::chrono::duration<int, std::ratio<3, 5> > s2(5);
    static_assert(s1 / s2 == 6, "");
    }
    {
    constexpr std::chrono::duration<int, std::ratio<2, 3> > s1(30);
    constexpr std::chrono::duration<double, std::ratio<3, 5> > s2(5);
    static_assert(s1 / s2 == 20./3, "");
    }
    {
      std::chrono::duration<int> d(5);
      RepConstConvertibleLWG3050 x;

      {
        auto r = d / x;
        assert(r.count() == 2);
        ASSERT_SAME_TYPE(std::chrono::duration<long>, decltype(r));
      }
    }
#endif // TEST_STD_VER >= 11

    return 0;
}