c++ - Trying to take 1 random digit at a time

Question

I am new to cpp programing, and new to stackoverflow.

I have a simple situation and a problem that is taking more time than reasonable to solve, so I thought I'd ask it here.

I want to take one digit from a rand() at a time. I have managed to strip of the digit, but I can't convert it to an int which I need because it's used as an array index.

Can anyone help? I'd be appreciative.

Also if anyone has a good solution to get evenly-distributed-in-base-10 random numbers, I'd like that too... of course with a rand max that isn't all 9s we don't have that.

KTM

Answer 1

Well you can use the modulus operator to get the digit of what number rand returns.

int digit = rand()%10;

As for your first question, if you have a character digit you can subtract the value of '0' to get the digit.

int digit = char_digit - '0';