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  1. #include <iostream>
  2. #include <cmath>
  3.  
  4. using namespace std;
  5.  
  6. double my_remainder(double Value1, double Value2)
  7. {
  8.     const double Result = fmod(Value1, Value2);
  9.     return Value2 < 0.0 ? -Result : Result;
  10. }
  11.  
  12. void test(double a, double b)
  13. {
  14. 	double res1 = my_remainder(a, b);
  15. 	double res2 = remainder(a, b);
  16.  
  17. 	std::cout << a << "/" << b << "\n"
  18. 		<< " impl: " << res1 << "\n"
  19. 		<< "  std: " << res2 << "\n"
  20. 		<< ((res1 == res2) ? " pass\n" : " fail\n");
  21. }
  22.  
  23.  
  24.  
  25. int main()
  26. {
  27. 	test(5.3, 2);
  28. 	test(18.5, 4.2);
  29. 	test(-5.3, 2);
  30. 	test(-18.5, 4.2);
  31. 	test(5.3, -2);
  32. 	test(18.5, -4.2);
  33. 	test(-5.3, -2);
  34. 	test(-18.5, -4.2);
  35. }
Success #stdin #stdout 0s 3296KB
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stdin
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Standard input is empty
stdout
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5.3/2
 impl: 1.3
  std: -0.7
 fail
18.5/4.2
 impl: 1.7
  std: 1.7
 pass
-5.3/2
 impl: -1.3
  std: 0.7
 fail
-18.5/4.2
 impl: -1.7
  std: -1.7
 pass
5.3/-2
 impl: -1.3
  std: -0.7
 fail
18.5/-4.2
 impl: -1.7
  std: 1.7
 fail
-5.3/-2
 impl: 1.3
  std: 0.7
 fail
-18.5/-4.2
 impl: 1.7
  std: -1.7
 fail
https://ideone.com/eL7MuK
language:
C++14 (gcc 8.3)
created:
10 years ago
visibility:
secret

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