libcxx/test/std/utilities/ratio/ratio.arithmetic/ratio_divide.pass.cpp

   1 //===----------------------------------------------------------------------===//
   2 //
   3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
   4 // See https://llvm.org/LICENSE.txt for license information.
   5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
   6 //
   7 //===----------------------------------------------------------------------===//
   8
   9 // test ratio_divide
  10
  11 #include <ratio>
  12
  13 #include "test_macros.h"
  14
  15 int main(int, char**)
  16 {
  17     {
  18     typedef std::ratio<1, 1> R1;
  19     typedef std::ratio<1, 1> R2;
  20     typedef std::ratio_divide<R1, R2>::type R;
  21     static_assert(R::num == 1 && R::den == 1, "");
  22     }
  23     {
  24     typedef std::ratio<1, 2> R1;
  25     typedef std::ratio<1, 1> R2;
  26     typedef std::ratio_divide<R1, R2>::type R;
  27     static_assert(R::num == 1 && R::den == 2, "");
  28     }
  29     {
  30     typedef std::ratio<-1, 2> R1;
  31     typedef std::ratio<1, 1> R2;
  32     typedef std::ratio_divide<R1, R2>::type R;
  33     static_assert(R::num == -1 && R::den == 2, "");
  34     }
  35     {
  36     typedef std::ratio<1, -2> R1;
  37     typedef std::ratio<1, 1> R2;
  38     typedef std::ratio_divide<R1, R2>::type R;
  39     static_assert(R::num == -1 && R::den == 2, "");
  40     }
  41     {
  42     typedef std::ratio<1, 2> R1;
  43     typedef std::ratio<-1, 1> R2;
  44     typedef std::ratio_divide<R1, R2>::type R;
  45     static_assert(R::num == -1 && R::den == 2, "");
  46     }
  47     {
  48     typedef std::ratio<1, 2> R1;
  49     typedef std::ratio<1, -1> R2;
  50     typedef std::ratio_divide<R1, R2>::type R;
  51     static_assert(R::num == -1 && R::den == 2, "");
  52     }
  53     {
  54     typedef std::ratio<56987354, 467584654> R1;
  55     typedef std::ratio<544668, 22145> R2;
  56     typedef std::ratio_divide<R1, R2>::type R;
  57     static_assert(R::num == 630992477165LL && R::den == 127339199162436LL, "");
  58     }
  59
  60   return 0;
  61 }