(C++) Fmod

 

Fmod is a math function to perform a modulus operation on doubles.

 

std::modf has a different purpose as Fmod: std::modf splits a double into its integer and a fractional part, for example it splits 12.34 into 12 and 0.34

 

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#include <cassert> double Fmod(const double x, const double mod) {   assert(mod != 0.0); //Cannot divide by zero   return x - (mod * static_cast<int>(x / mod)); }