Which variables should I typecast when doing math operations in C/C++?

Question

For example, when I\'m dividing two ints and want a float returned, I superstitiously write something like this:

int a = 2, b = 3;
float c = (float)a / (floa         


        

Answer 1

You can just cast one of them. It doesn't matter which one though.

Whenever the types don't match, the "smaller" type is automatically promoted to the "larger" type, with floating point being "larger" than integer types.