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#include "fmt.h"
unsigned int fmt_ulong0(char *dest,unsigned long i,unsigned int pad) {
register unsigned int len;
register unsigned long tmp;
/* first count the number of bytes needed */
for (len=1, tmp=i; tmp>9; ++len) tmp/=10;
/* now see if we need to pad */
if (dest) {
while (len<pad) { *dest='0'; ++dest; ++len; }
return len;
} else
return (len<pad?pad:len);