#include "scan.h"

unsigned int scan_ulong(s,u) register char *s; register unsigned long *u;

{

  register unsigned int pos; register unsigned long result;

  register unsigned long c;

  pos = 0; result = 0;

  while ((c = (unsigned long) (unsigned char) (s[pos] - '0')) < 10)

    { result = result * 10 + c; ++pos; }

  *u = result; return pos;

}