[unix-history] / usr / src / usr.bin / m4 / stdd.h

/*-
 * Copyright (c) 1991, 1993
 *	The Regents of the University of California.  All rights reserved.
 *
 * This code is derived from software contributed to Berkeley by
 * Ozan Yigit at York University.
 *
 * %sccs.include.redist.c%
 *
 *	@(#)stdd.h	8.1 (Berkeley) %G%
 */

/*
 * standard defines
 */

#define max(a,b) ((a) > (b)? (a): (b))
#define min(a,b) ((a) < (b)? (a): (b))

#define iswhite(c) ((c) == ' ' || (c) == '\t')

/* 
 * STREQ is an optimised strcmp(a,b)==0 
 * STREQN is an optimised strncmp(a,b,n)==0; assumes n > 0 
 */
#define STREQ(a, b) ((a)[0] == (b)[0] && strcmp(a, b) == 0)
#define STREQN(a, b, n) ((a)[0] == (b)[0] && strncmp(a, b, n) == 0)

#define YES 1
#define NO 0
Commit	Line	Data
f645fe31	1	/*-
491c97d5 KB	2	* Copyright (c) 1991, 1993
491c97d5 KB	3	* The Regents of the University of California. All rights reserved.
f645fe31 KB	4	*
f645fe31 KB	5	* This code is derived from software contributed to Berkeley by
a93b814a	6	* Ozan Yigit at York University.
f645fe31 KB	7	*
	8	* %sccs.include.redist.c%
	9	*
491c97d5	10	* @(#)stdd.h 8.1 (Berkeley) %G%
f645fe31 KB	11	*/
	12
	13	/*
	14	* standard defines
	15	*/
	16
	17	#define max(a,b) ((a) > (b)? (a): (b))
	18	#define min(a,b) ((a) < (b)? (a): (b))
	19
	20	#define iswhite(c) ((c) == ' ' \|\| (c) == '\t')
	21
	22	/*
	23	* STREQ is an optimised strcmp(a,b)==0
	24	* STREQN is an optimised strncmp(a,b,n)==0; assumes n > 0
	25	*/
	26	#define STREQ(a, b) ((a)[0] == (b)[0] && strcmp(a, b) == 0)
	27	#define STREQN(a, b, n) ((a)[0] == (b)[0] && strncmp(a, b, n) == 0)
	28
	29	#define YES 1
	30	#define NO 0