src/common.c



    1 #include "common.h"
    2 
    3 /**
    4  * The complimentary function to the posix atoi. It turns an integer into a
    5  * string.
    6  *
    7  * @param i Integer to be converted to string
    8  * @param out Output char array. Be sure it has enough room for the output
    9  *            string.
   10  *
   11  * @return int The character count of the output char array
   12  */
   13 int itoa(int i, char* out) {
   14   // To keep track of where we are in the array
   15   int n = 0;
   16   while(i > 9) {
   17     printf("  %d\n", i);
   18     // This is some crazy simple math here
   19     out[n] = (i%10) + 48;
   20     // It's an int, so the last number will be stripped
   21     i = i/10;
   22     n++;
   23   }
   24   // Have to do this one more time to ensure we get the last number on
   25   // zero-ended ints
   26   out[n] = (i%10) + 48;
   27   // Account for the last char
   28   n++;
   29   // Annnd the null byte
   30   out[n] = '\0';
   31   n++;
   32   return n;
   33 }