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

Then there are older brain-damaged types like me who, having to use old-fashioned languages, just unthinkingly write stuff like

int a;
int b;
float z;

z = a*1.0*b;

Of course this isn't universal, good only for pretty much just this case.