1/* Public domain. */
 2
 3#include "fmt.h"
 4
 5unsigned int fmt_uint0(char *s,unsigned int u,unsigned int n)
 6{
 7  unsigned int len;
 8  len = fmt_uint(FMT_LEN,u);
 9  while (len < n) { if (s) *s++ = '0'; ++len; }
10  if (s) fmt_uint(s,u);
11  return len;
12}