1//===----------------------------------------------------------------------===//
2//
3//                     The LLVM Compiler Infrastructure
4//
5// This file is dual licensed under the MIT and the University of Illinois Open
6// Source Licenses. See LICENSE.TXT for details.
7//
8//===----------------------------------------------------------------------===//
9
10// <chrono>
11
12// time_point
13
14// template <class Duration2>
15//   time_point(const time_point<clock, Duration2>& t);
16
17#include <chrono>
18#include <cassert>
19
20#include "test_macros.h"
21
22int main()
23{
24    typedef std::chrono::system_clock Clock;
25    typedef std::chrono::microseconds Duration1;
26    typedef std::chrono::milliseconds Duration2;
27    {
28    std::chrono::time_point<Clock, Duration2> t2(Duration2(3));
29    std::chrono::time_point<Clock, Duration1> t1 = t2;
30    assert(t1.time_since_epoch() == Duration1(3000));
31    }
32#if TEST_STD_VER > 11
33    {
34    constexpr std::chrono::time_point<Clock, Duration2> t2(Duration2(3));
35    constexpr std::chrono::time_point<Clock, Duration1> t1 = t2;
36    static_assert(t1.time_since_epoch() == Duration1(3000), "");
37    }
38#endif
39}
40