Question

I have an integer x that contains a 1-4 digit number. How can I convert it to a 4-character array of the digits (padded with zeroes if necessary)? That is, if x is 4, I want character array y to contain 0004

Answer 1

// Assume x is in the correct range (0 <= x <= 9999)
char target[5];
sprintf(target, "%04d", x);