xref: /freebsd/usr.bin/m4/stdd.h (revision 031beb4e239bfce798af17f5fe8dba8bcaf13d99)
1 /*	$OpenBSD: stdd.h,v 1.6 2010/09/07 19:58:09 marco Exp $	*/
2 /*	$NetBSD: stdd.h,v 1.2 1995/09/28 05:37:50 tls Exp $	*/
3 
4 /*-
5  * SPDX-License-Identifier: BSD-3-Clause
6  *
7  * Copyright (c) 1991, 1993
8  *	The Regents of the University of California.  All rights reserved.
9  *
10  * This code is derived from software contributed to Berkeley by
11  * Ozan Yigit at York University.
12  *
13  * Redistribution and use in source and binary forms, with or without
14  * modification, are permitted provided that the following conditions
15  * are met:
16  * 1. Redistributions of source code must retain the above copyright
17  *    notice, this list of conditions and the following disclaimer.
18  * 2. Redistributions in binary form must reproduce the above copyright
19  *    notice, this list of conditions and the following disclaimer in the
20  *    documentation and/or other materials provided with the distribution.
21  * 3. Neither the name of the University nor the names of its contributors
22  *    may be used to endorse or promote products derived from this software
23  *    without specific prior written permission.
24  *
25  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
26  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
27  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
28  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
29  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
30  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
31  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
32  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
33  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
34  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
35  * SUCH DAMAGE.
36  *
37  *	@(#)stdd.h	8.1 (Berkeley) 6/6/93
38  */
39 
40 /*
41  * standard defines
42  */
43 
44 #define max(a,b) ((a) > (b)? (a): (b))
45 #define min(a,b) ((a) < (b)? (a): (b))
46 
47 #define iswhite(c) ((c) == ' ' || (c) == '\t')
48 
49 /*
50  * STREQ is an optimised strcmp(a,b)==0
51  * STREQN is an optimised strncmp(a,b,n)==0; assumes n > 0
52  */
53 #define STREQ(a, b) ((a)[0] == (b)[0] && strcmp(a, b) == 0)
54 #define STREQN(a, b, n) ((a)[0] == (b)[0] && strncmp(a, b, n) == 0)
55 
56 #define YES 1
57 #define NO 0
58