#include "fmt.h"

unsigned int fmt_uint0(s,u,n) char *s; unsigned int u; unsigned int n;
{
 unsigned int len;
 len = fmt_uint(FMT_LEN,u);
 while (len < n) { if (s) *s++ = '0'; ++len; }
 if (s) fmt_uint(s,u);
 return len;
}