How to make a modulo operation in objective-c / cocoa touch?

Question

% is for int or long, not float or double.

You can use fmod() or fmodf() from <math.h> instead.

Better is <tgmath.h> as suggested by the inventor of CGFloat.

If I remember correctly modulo requires 2 ints as its input so you'd need something like:

CGFloat moduloResult = (float)((int)valueB % (int)valueA);

Assuming that valueB and valueA are both floats