11573Srgrimes/*-
21573Srgrimes * Copyright (c) 1992, 1993, 1994 Henry Spencer.
31573Srgrimes * Copyright (c) 1992, 1993, 1994
41573Srgrimes *	The Regents of the University of California.  All rights reserved.
51573Srgrimes *
61573Srgrimes * This code is derived from software contributed to Berkeley by
71573Srgrimes * Henry Spencer.
81573Srgrimes *
91573Srgrimes * Redistribution and use in source and binary forms, with or without
101573Srgrimes * modification, are permitted provided that the following conditions
111573Srgrimes * are met:
121573Srgrimes * 1. Redistributions of source code must retain the above copyright
131573Srgrimes *    notice, this list of conditions and the following disclaimer.
141573Srgrimes * 2. Redistributions in binary form must reproduce the above copyright
151573Srgrimes *    notice, this list of conditions and the following disclaimer in the
161573Srgrimes *    documentation and/or other materials provided with the distribution.
171573Srgrimes * 4. Neither the name of the University nor the names of its contributors
181573Srgrimes *    may be used to endorse or promote products derived from this software
191573Srgrimes *    without specific prior written permission.
201573Srgrimes *
211573Srgrimes * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
221573Srgrimes * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
231573Srgrimes * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
241573Srgrimes * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
251573Srgrimes * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
261573Srgrimes * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
271573Srgrimes * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
281573Srgrimes * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
291573Srgrimes * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
301573Srgrimes * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
311573Srgrimes * SUCH DAMAGE.
321573Srgrimes *
331573Srgrimes *	@(#)utils.h	8.3 (Berkeley) 3/20/94
3492991Sobrien * $FreeBSD$
351573Srgrimes */
361573Srgrimes
371573Srgrimes/* utility definitions */
381573Srgrimes#define	DUPMAX		_POSIX2_RE_DUP_MAX	/* xxx is this right? */
391573Srgrimes#define	INFINITY	(DUPMAX + 1)
401573Srgrimes#define	NC		(CHAR_MAX - CHAR_MIN + 1)
411573Srgrimestypedef unsigned char uch;
421573Srgrimes
431573Srgrimes/* switch off assertions (if not already off) if no REDEBUG */
441573Srgrimes#ifndef REDEBUG
451573Srgrimes#ifndef NDEBUG
461573Srgrimes#define	NDEBUG	/* no assertions please */
471573Srgrimes#endif
481573Srgrimes#endif
491573Srgrimes#include <assert.h>
501573Srgrimes
511573Srgrimes/* for old systems with bcopy() but no memmove() */
521573Srgrimes#ifdef USEBCOPY
531573Srgrimes#define	memmove(d, s, c)	bcopy(s, d, c)
541573Srgrimes#endif
55