2.9BSD/usr/ingres/source/gutil/append.c

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/**
 **	BLOCK CONCATANATE
 **		block `b1' of length `l1' is concatenated to block
 **		`b2' of length `l2', giving `b3'.
 **
 **		Returns the address of the next byte available after
 **		the end of `b3'.
 **/

append(b1, l1, b2, l2, b3)
int	l1, l2;
char	*b1, *b2, *b3;
{
	register char	*p, *q;
	register int	n;

	p = b3;
	n = l1;
	q = b1;
	while (n-- > 0)
		*p++ = *q++;
	n = l2;
	q = b2;
	while (n-- > 0)
		*p++ = *q++;
	return (p);
}