1 /* $NetBSD: defs.h,v 1.5 1999/12/24 09:08:49 agc Exp $ */ 2 3 /* 4 * Copyright (c) 1999 Alistair G. Crooks. All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 3. All advertising materials mentioning features or use of this software 15 * must display the following acknowledgement: 16 * This product includes software developed by Alistair G. Crooks. 17 * 4. The name of the author may not be used to endorse or promote 18 * products derived from this software without specific prior written 19 * permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS 22 * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 23 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY 25 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE 27 * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 28 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 29 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING 30 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS 31 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 32 */ 33 #ifndef DEFS_H_ 34 #define DEFS_H_ 35 36 #define NEWARRAY(type,ptr,size,action) do { \ 37 if ((ptr = (type *) calloc(sizeof(type), size)) == (type *) NULL) { \ 38 warn("can't allocate %ld bytes", (long)(size * sizeof(type))); \ 39 action; \ 40 } \ 41 } while( /* CONSTCOND */ 0) 42 43 #define RENEW(type,ptr,size,action) do { \ 44 if ((ptr = (type *) realloc(ptr, sizeof(type) * size)) == (type *) NULL) { \ 45 warn("can't realloc %ld bytes", (long)(size * sizeof(type))); \ 46 action; \ 47 } \ 48 } while( /* CONSTCOND */ 0) 49 50 #define NEW(type, ptr, action) NEWARRAY(type, ptr, 1, action) 51 52 #define FREE(ptr) (void) free(ptr) 53 54 #ifndef MIN 55 #define MIN(a,b) (((a) < (b)) ? (a) : (b)) 56 #endif 57 58 #ifndef MAX 59 #define MAX(a,b) (((a) > (b)) ? (a) : (b)) 60 #endif 61 62 #endif /* !DEFS_H_ */ 63