1 /* Public domain. */
2 
3 #include "fmt.h"
4 
fmt_ulong(register char * s,register unsigned long u)5 unsigned int fmt_ulong(register char *s,register unsigned long u)
6 {
7   register unsigned int len; register unsigned long q;
8   len = 1; q = u;
9   while (q > 9) { ++len; q /= 10; }
10   if (s) {
11     s += len;
12     do { *--s = '0' + (u % 10); u /= 10; } while(u); /* handles u == 0 */
13   }
14   return len;
15 }
16