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 // duration
13 
14 // template <class Rep2>
15 //   explicit duration(const Rep2& r);
16 
17 #include <chrono>
18 #include <cassert>
19 
20 #include "../../rep.h"
21 
22 template <class D, class R>
23 void
test(R r)24 test(R r)
25 {
26     D d(r);
27     assert(d.count() == r);
28 #ifndef _LIBCPP_HAS_NO_CONSTEXPR
29     constexpr D d2(R(2));
30     static_assert(d2.count() == 2, "");
31 #endif
32 }
33 
main()34 int main()
35 {
36     test<std::chrono::duration<int> >(5);
37     test<std::chrono::duration<int, std::ratio<3, 2> > >(5);
38     test<std::chrono::duration<Rep, std::ratio<3, 2> > >(Rep(3));
39     test<std::chrono::duration<double, std::ratio<2, 3> > >(5.5);
40 }
41