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 // Period shall be a specialization of ratio, diagnostic required.
15 
16 #include <chrono>
17 
18 template <int N, int D = 1>
19 class Ratio
20 {
21 public:
22     static const int num = N;
23     static const int den = D;
24 };
25 
main()26 int main()
27 {
28     typedef std::chrono::duration<int, Ratio<1> > D;
29     D d;
30 }
31