Using function arguments as local variables

Question

Something like this (yes, this doesn\'t deal with some edge cases - that\'s not the point):

int CountDigits(int num) {
    int count = 1;
             


        

Answer 1

If I don't need a copy of the original value, I don't declare a new variable.

IMO I don't think mutating the parameter values is a bad practice in general,
it depends on how you're going to use it in your code.