2.11BSD#431 - /usr/src/usr.bin/m4/stdd.h

   1: /*-
   2:  * Copyright (c) 1991, 1993
   3:  *	The Regents of the University of California.  All rights reserved.
   4:  *
   5:  * This code is derived from software contributed to Berkeley by
   6:  * Ozan Yigit at York University.
   7:  *
   8:  * Redistribution and use in source and binary forms, with or without
   9:  * modification, are permitted provided that the following conditions
  10:  * are met:
  11:  * 1. Redistributions of source code must retain the above copyright
  12:  *    notice, this list of conditions and the following disclaimer.
  13:  * 2. Redistributions in binary form must reproduce the above copyright
  14:  *    notice, this list of conditions and the following disclaimer in the
  15:  *    documentation and/or other materials provided with the distribution.
  16:  * 3. All advertising materials mentioning features or use of this software
  17:  *    must display the following acknowledgement:
  18:  *	This product includes software developed by the University of
  19:  *	California, Berkeley and its contributors.
  20:  * 4. Neither the name of the University nor the names of its contributors
  21:  *    may be used to endorse or promote products derived from this software
  22:  *    without specific prior written permission.
  23:  *
  24:  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  25:  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  26:  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  27:  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  28:  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  29:  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  30:  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  31:  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  32:  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  33:  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  34:  * SUCH DAMAGE.
  35:  *
  36:  *	@(#)stdd.h	8.1 (Berkeley) 6/6/93
  37:  */
  38: 
  39: /*
  40:  * standard defines
  41:  */
  42: 
  43: #define max(a,b) ((a) > (b)? (a): (b))
  44: #define min(a,b) ((a) < (b)? (a): (b))
  45: 
  46: #define iswhite(c) ((c) == ' ' || (c) == '\t')
  47: 
  48: /*
  49:  * STREQ is an optimised strcmp(a,b)==0
  50:  * STREQN is an optimised strncmp(a,b,n)==0; assumes n > 0
  51:  */
  52: #define STREQ(a, b) ((a)[0] == (b)[0] && strcmp(a, b) == 0)
  53: #define STREQN(a, b, n) ((a)[0] == (b)[0] && strncmp(a, b, n) == 0)
  54: 
  55: #define YES 1
  56: #define NO 0
  57: 
  58: #define __P(protos) ()
  59: 
  60: extern  int errno;

Defined macros

Usage of this include