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// duration
12
13// template <class Rep2, class Period2>
14// duration(const duration<Rep2, Period2>& d);
15
16// inexact conversions allowed for floating point reps
17
18#include <chrono>
19#include <cassert>
20#include <ratio>
21
22#include "test_macros.h"
23
24int main(int, char**)
25{
26 {
27 std::chrono::duration<double, std::micro> us(1);
28 std::chrono::duration<double, std::milli> ms = us;
29 assert(ms.count() == 1./1000);
30 }
31#if TEST_STD_VER >= 11
32 {
33 constexpr std::chrono::duration<double, std::micro> us(1);
34 constexpr std::chrono::duration<double, std::milli> ms = us;
35 static_assert(ms.count() == 1./1000, "");
36 }
37#endif
38
39 return 0;
40}
41

source code of libcxx/test/std/time/time.duration/time.duration.cons/convert_inexact.pass.cpp