1File: UTIL.C                                                              Page       1
     1   atoi(as)
     2   char *as;
     3   {
     4   	register int n, sign;
     5   	register char *s;
     6    
     7   	s = as;
     8   	while( *s==' ' || *s=='\n' || *s == '\t')
     9   		s++;
    10   	sign = 1;
    11   	if( *s == '+' || *s == '-' )
    12   		sign = (*s++=='+') ? 1 : -1;
    13   	for( n = 0; *s >= '0' && *s <= '9'; s++ )
    14   		n = (n * 10) + (*s - '0');
    15   	return( sign * n );
    16   }