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
21 #include "test_macros.h"
22
main(int,char **)23 int main(int, char**)
24 {
25 {
26 std::chrono::duration<double, std::micro> us(1);
27 std::chrono::duration<double, std::milli> ms = us;
28 assert(ms.count() == 1./1000);
29 }
30 #if TEST_STD_VER >= 11
31 {
32 constexpr std::chrono::duration<double, std::micro> us(1);
33 constexpr std::chrono::duration<double, std::milli> ms = us;
34 static_assert(ms.count() == 1./1000, "");
35 }
36 #endif
37
38 return 0;
39 }
40