#include "fmt.h"

unsigned int fmt_ulong(register char *s,register unsigned long u)

{

  register unsigned int len; register unsigned long q;

  len = 1; q = u;

  while (q > 9) { ++len; q /= 10; }

  if (s) {

    s += len;

    do { *--s = '0' + (u % 10); u /= 10; } while(u); /* handles u == 0 */

  }

  return len;

}