1 #include "fmt.h"

     2 

     3 unsigned int fmt_uint0(s,u,n) char *s; unsigned int u; unsigned int n;

     4 {

     5   unsigned int len;

     6   len = fmt_uint(FMT_LEN,u);

     7   while (len < n) { if (s) *s++ = '0'; ++len; }

     8   if (s) fmt_uint(s,u);

     9   return len;

    10 }