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/* $NetBSD: defs.h,v 1.2 2003/09/01 16:27:14 jlam Exp $ */
/*
* Copyright (c) 1999-2000 Alistair G. Crooks. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by Alistair G. Crooks.
* 4. The name of the author may not be used to endorse or promote
* products derived from this software without specific prior written
* permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
* OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
* GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef DEFS_H_
#define DEFS_H_
#include <nbcompat.h>
#if HAVE_CONFIG_H
#include "config.h"
#endif
#if HAVE_ERR_H
#include <err.h>
#endif
#if HAVE_STDLIB_H
#include <stdlib.h>
#endif
#if HAVE_STRING_H
#include <string.h>
#endif
#define NEWARRAY(type,ptr,size,where,action) do { \
if ((ptr = (type *) calloc(sizeof(type), (unsigned)(size))) == NULL) { \
warn("%s: can't allocate %lu bytes", where, \
(unsigned long)(size * sizeof(type))); \
action; \
} \
} while( /* CONSTCOND */ 0)
#define RENEW(type,ptr,size,where,action) do { \
type *newptr; \
if ((newptr = (type *) realloc(ptr, sizeof(type) * (size))) == NULL) { \
warn("%s: can't realloc %lu bytes", where, \
(unsigned long)(size * sizeof(type))); \
action; \
} \
ptr = newptr; \
} while( /* CONSTCOND */ 0)
#define NEW(type, ptr, where, action) NEWARRAY(type, ptr, 1, where, action)
#define FREE(ptr) (void) free(ptr)
#define ALLOC(type, v, size, c, init, where, action) do { \
if (size == 0) { \
size = init; \
NEWARRAY(type, v, size, where ": new", action); \
} else if (c == size) { \
size *= 2; \
RENEW(type, v, size, where ": renew", action); \
} \
} while( /* CONSTCOND */ 0)
#ifndef MIN
#define MIN(a,b) (((a) < (b)) ? (a) : (b))
#endif
#ifndef MAX
#define MAX(a,b) (((a) > (b)) ? (a) : (b))
#endif
#ifndef ABS
#define ABS(a) (((a) < 0) ? -(a) : (a))
#endif
#define STRNCPY(to, from, size) do { \
(void) strncpy(to, from, size); \
to[(size) - 1] = 0; \
} while( /* CONSTCOND */ 0)
#endif /* !DEFS_H_ */
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