int to char*

itoa.c

/*  taken from http://www.strudel.org.uk/itoa/ 
    cannot handle negative numbers */

char* itoa(int val, int base){
    static char buf[32] = {0};
    int i = 30;
    for(; val && i ; --i, val /= base)
        buf[i] = "0123456789abcdef"[val % base];
    return &buf[i+1];
}