[unix-history] / usr / src / usr.bin / pascal / libpc / IN.c

/* Copyright (c) 1979 Regents of the University of California */

static char sccsid[] = "@(#)IN.c 1.1 %G%";

#include "h00vars.h"

IN(element, lower, upper, setptr)

	int	element;	/* element to check */
	int	lower;		/* lowest element of set */
	int	upper;		/* upper - lower of set */
	char	setptr[];	/* pointer to set */
{
	int	indx;

	if ((indx = element - lower) < 0 || indx > upper)
		return FALSE;
	if (setptr[indx / BITSPERBYTE] & (1 << (indx % BITSPERBYTE)))
		return TRUE;
	return FALSE;
}
Commit	Line	Data
a16e27c5 KM	1	/* Copyright (c) 1979 Regents of the University of California */
	2
	3	static char sccsid[] = "@(#)IN.c 1.1 %G%";
	4
	5	#include "h00vars.h"
	6
	7	IN(element, lower, upper, setptr)
	8
	9	int element; /* element to check */
	10	int lower; /* lowest element of set */
	11	int upper; /* upper - lower of set */
	12	char setptr[]; /* pointer to set */
	13	{
	14	int indx;
	15
	16	if ((indx = element - lower) < 0 \|\| indx > upper)
	17	return FALSE;
	18	if (setptr[indx / BITSPERBYTE] & (1 << (indx % BITSPERBYTE)))
	19	return TRUE;
	20	return FALSE;
	21	}