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1  /*	$OpenBSD: utils.h,v 1.4 2003/06/02 20:18:36 millert Exp $	*/
2  
3  /*-
4   * Copyright (c) 1992, 1993, 1994 Henry Spencer.
5   * Copyright (c) 1992, 1993, 1994
6   *	The Regents of the University of California.  All rights reserved.
7   *
8   * This code is derived from software contributed to Berkeley by
9   * Henry Spencer.
10   *
11   * Redistribution and use in source and binary forms, with or without
12   * modification, are permitted provided that the following conditions
13   * are met:
14   * 1. Redistributions of source code must retain the above copyright
15   *    notice, this list of conditions and the following disclaimer.
16   * 2. Redistributions in binary form must reproduce the above copyright
17   *    notice, this list of conditions and the following disclaimer in the
18   *    documentation and/or other materials provided with the distribution.
19   * 3. Neither the name of the University nor the names of its contributors
20   *    may be used to endorse or promote products derived from this software
21   *    without specific prior written permission.
22   *
23   * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
24   * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
25   * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
26   * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
27   * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
28   * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
29   * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
30   * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
31   * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
32   * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33   * SUCH DAMAGE.
34   *
35   *	@(#)utils.h	8.3 (Berkeley) 3/20/94
36   */
37  
38  /* utility definitions */
39  #define	DUPMAX		255
40  #define	INFINITY	(DUPMAX + 1)
41  #define	NC		(CHAR_MAX - CHAR_MIN + 1)
42  typedef unsigned char uch;
43  
44  /* switch off assertions (if not already off) if no REDEBUG */
45  #ifndef REDEBUG
46  #ifndef NDEBUG
47  #define	NDEBUG	/* no assertions please */
48  #endif
49  #endif
50  #include <assert.h>
51  
52  /* for old systems with bcopy() but no memmove() */
53  #ifdef USEBCOPY
54  #define	memmove(d, s, c)	bcopy(s, d, c)
55  #endif
56