xref: /openbsd-src/lib/libc/regex/utils.h (revision 6580fee3295c971a919cc04bfc3598c5f8bcd2b1)
1*6580fee3Smillert /*	$OpenBSD: utils.h,v 1.4 2003/06/02 20:18:36 millert Exp $	*/
2df930be7Sderaadt 
3df930be7Sderaadt /*-
4df930be7Sderaadt  * Copyright (c) 1992, 1993, 1994 Henry Spencer.
5df930be7Sderaadt  * Copyright (c) 1992, 1993, 1994
6df930be7Sderaadt  *	The Regents of the University of California.  All rights reserved.
7df930be7Sderaadt  *
8df930be7Sderaadt  * This code is derived from software contributed to Berkeley by
9df930be7Sderaadt  * Henry Spencer.
10df930be7Sderaadt  *
11df930be7Sderaadt  * Redistribution and use in source and binary forms, with or without
12df930be7Sderaadt  * modification, are permitted provided that the following conditions
13df930be7Sderaadt  * are met:
14df930be7Sderaadt  * 1. Redistributions of source code must retain the above copyright
15df930be7Sderaadt  *    notice, this list of conditions and the following disclaimer.
16df930be7Sderaadt  * 2. Redistributions in binary form must reproduce the above copyright
17df930be7Sderaadt  *    notice, this list of conditions and the following disclaimer in the
18df930be7Sderaadt  *    documentation and/or other materials provided with the distribution.
19*6580fee3Smillert  * 3. Neither the name of the University nor the names of its contributors
20df930be7Sderaadt  *    may be used to endorse or promote products derived from this software
21df930be7Sderaadt  *    without specific prior written permission.
22df930be7Sderaadt  *
23df930be7Sderaadt  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
24df930be7Sderaadt  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
25df930be7Sderaadt  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
26df930be7Sderaadt  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
27df930be7Sderaadt  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
28df930be7Sderaadt  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
29df930be7Sderaadt  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
30df930be7Sderaadt  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
31df930be7Sderaadt  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
32df930be7Sderaadt  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33df930be7Sderaadt  * SUCH DAMAGE.
34442a6afdSmillert  *
35442a6afdSmillert  *	@(#)utils.h	8.3 (Berkeley) 3/20/94
36df930be7Sderaadt  */
37df930be7Sderaadt 
38df930be7Sderaadt /* utility definitions */
39df930be7Sderaadt #define	DUPMAX		_POSIX2_RE_DUP_MAX	/* xxx is this right? */
40df930be7Sderaadt #define	INFINITY	(DUPMAX + 1)
41df930be7Sderaadt #define	NC		(CHAR_MAX - CHAR_MIN + 1)
42df930be7Sderaadt typedef unsigned char uch;
43df930be7Sderaadt 
44df930be7Sderaadt /* switch off assertions (if not already off) if no REDEBUG */
45df930be7Sderaadt #ifndef REDEBUG
46df930be7Sderaadt #ifndef NDEBUG
47df930be7Sderaadt #define	NDEBUG	/* no assertions please */
48df930be7Sderaadt #endif
49df930be7Sderaadt #endif
50df930be7Sderaadt #include <assert.h>
51df930be7Sderaadt 
52df930be7Sderaadt /* for old systems with bcopy() but no memmove() */
53df930be7Sderaadt #ifdef USEBCOPY
54df930be7Sderaadt #define	memmove(d, s, c)	bcopy(s, d, c)
55df930be7Sderaadt #endif
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