time_point.pass.cpp revision b64f8b07c104c6cc986570ac8ee0ed16a9f23976 
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// template <class Clock, class Duration1, class Duration2>
13// struct common_type<chrono::time_point<Clock, Duration1>, chrono::time_point<Clock, Duration2>>
14// {
15//     typedef chrono::time_point<Clock, typename common_type<Duration1, Duration2>::type> type;
16// };
17
18#include <chrono>
19
20template <class D1, class D2, class De>
21void
22test()
23{
24    typedef std::chrono::system_clock C;
25    typedef std::chrono::time_point<C, D1> T1;
26    typedef std::chrono::time_point<C, D2> T2;
27    typedef std::chrono::time_point<C, De> Te;
28    typedef typename std::common_type<T1, T2>::type Tc;
29    static_assert((std::is_same<Tc, Te>::value), "");
30}
31
32int main()
33{
34    test<std::chrono::duration<int, std::ratio<1, 100> >,
35         std::chrono::duration<long, std::ratio<1, 1000> >,
36         std::chrono::duration<long, std::ratio<1, 1000> > >();
37    test<std::chrono::duration<long, std::ratio<1, 100> >,
38         std::chrono::duration<int, std::ratio<1, 1000> >,
39         std::chrono::duration<long, std::ratio<1, 1000> > >();
40    test<std::chrono::duration<char, std::ratio<1, 30> >,
41         std::chrono::duration<short, std::ratio<1, 1000> >,
42         std::chrono::duration<int, std::ratio<1, 3000> > >();
43    test<std::chrono::duration<double, std::ratio<21, 1> >,
44         std::chrono::duration<short, std::ratio<15, 1> >,
45         std::chrono::duration<double, std::ratio<3, 1> > >();
46}
47