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 // construct double with int
18 
19 #include <chrono>
20 #include <cassert>
21 
main()22 int main()
23 {
24     std::chrono::duration<double> d(5);
25     assert(d.count() == 5);
26 #ifndef _LIBCPP_HAS_NO_CONSTEXPR
27     constexpr std::chrono::duration<double> d2(5);
28     static_assert(d2.count() == 5, "");
29 #endif
30 }
31