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 // test ratio_multiply
11 
12 #include <ratio>
13 
14 int main()
15 {
16     {
17     typedef std::ratio<1, 1> R1;
18     typedef std::ratio<1, 1> R2;
19     typedef std::ratio_multiply<R1, R2>::type R;
20     static_assert(R::num == 1 && R::den == 1, "");
21     }
22     {
23     typedef std::ratio<1, 2> R1;
24     typedef std::ratio<1, 1> R2;
25     typedef std::ratio_multiply<R1, R2>::type R;
26     static_assert(R::num == 1 && R::den == 2, "");
27     }
28     {
29     typedef std::ratio<-1, 2> R1;
30     typedef std::ratio<1, 1> R2;
31     typedef std::ratio_multiply<R1, R2>::type R;
32     static_assert(R::num == -1 && R::den == 2, "");
33     }
34     {
35     typedef std::ratio<1, -2> R1;
36     typedef std::ratio<1, 1> R2;
37     typedef std::ratio_multiply<R1, R2>::type R;
38     static_assert(R::num == -1 && R::den == 2, "");
39     }
40     {
41     typedef std::ratio<1, 2> R1;
42     typedef std::ratio<-1, 1> R2;
43     typedef std::ratio_multiply<R1, R2>::type R;
44     static_assert(R::num == -1 && R::den == 2, "");
45     }
46     {
47     typedef std::ratio<1, 2> R1;
48     typedef std::ratio<1, -1> R2;
49     typedef std::ratio_multiply<R1, R2>::type R;
50     static_assert(R::num == -1 && R::den == 2, "");
51     }
52     {
53     typedef std::ratio<56987354, 467584654> R1;
54     typedef std::ratio<544668, 22145> R2;
55     typedef std::ratio_multiply<R1, R2>::type R;
56     static_assert(R::num == 15519594064236LL && R::den == 5177331081415LL, "");
57     }
58 }
59