[apple/system_cmds.git] / zic.tproj / ialloc.c

/*
 * Copyright (c) 1999 Apple Computer, Inc. All rights reserved.
 *
 * @APPLE_LICENSE_HEADER_START@
 * 
 * Copyright (c) 1999-2003 Apple Computer, Inc.  All Rights Reserved.
 * 
 * This file contains Original Code and/or Modifications of Original Code
 * as defined in and that are subject to the Apple Public Source License
 * Version 2.0 (the 'License'). You may not use this file except in
 * compliance with the License. Please obtain a copy of the License at
 * http://www.opensource.apple.com/apsl/ and read it before using this
 * file.
 * 
 * The Original Code and all software distributed under the License are
 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
 * Please see the License for the specific language governing rights and
 * limitations under the License.
 * 
 * @APPLE_LICENSE_HEADER_END@
 */
#if defined(LIBC_SCCS) && !defined(lint)
#if 0
static char	elsieid[] = "@(#)ialloc.c	8.28";
#else
static char rcsid[] = "$OpenBSD: ialloc.c,v 1.3 1997/01/14 03:16:45 millert Exp $";
#endif
#endif /* LIBC_SCCS and not lint */

/*LINTLIBRARY*/

#include "private.h"

#define nonzero(n)	(((n) == 0) ? 1 : (n))

char *	icalloc P((int nelem, int elsize));
char *	icatalloc P((char * old, const char * new));
char *	icpyalloc P((const char * string));
char *	imalloc P((int n));
void *	irealloc P((void * pointer, int size));
void	ifree P((char * pointer));

char *
imalloc(n)
const int	n;
{
	return malloc((size_t) nonzero(n));
}

char *
icalloc(nelem, elsize)
int	nelem;
int	elsize;
{
	if (nelem == 0 || elsize == 0)
		nelem = elsize = 1;
	return calloc((size_t) nelem, (size_t) elsize);
}

void *
irealloc(pointer, size)
void * const	pointer;
const int	size;
{
	if (pointer == NULL)
		return imalloc(size);
	return realloc((void *) pointer, (size_t) nonzero(size));
}

char *
icatalloc(old, new)
char * const		old;
const char * const	new;
{
	register char *	result;
	register int	oldsize, newsize;

	newsize = (new == NULL) ? 0 : strlen(new);
	if (old == NULL)
		oldsize = 0;
	else if (newsize == 0)
		return old;
	else	oldsize = strlen(old);
	if ((result = irealloc(old, oldsize + newsize + 1)) != NULL)
		if (new != NULL)
			(void) strcpy(result + oldsize, new);
	return result;
}

char *
icpyalloc(string)
const char * const	string;
{
	return icatalloc((char *) NULL, string);
}

void
ifree(p)
char * const	p;
{
	if (p != NULL)
		(void) free(p);
}

void
icfree(p)
char * const	p;
{
	if (p != NULL)
		(void) free(p);
}
Commit	Line	Data
1815bff5 A	1	/*
	2	* Copyright (c) 1999 Apple Computer, Inc. All rights reserved.
	3	*
	4	* @APPLE_LICENSE_HEADER_START@
	5	*
c3a08f59 A	6	* Copyright (c) 1999-2003 Apple Computer, Inc. All Rights Reserved.
	7	*
	8	* This file contains Original Code and/or Modifications of Original Code
	9	* as defined in and that are subject to the Apple Public Source License
	10	* Version 2.0 (the 'License'). You may not use this file except in
	11	* compliance with the License. Please obtain a copy of the License at
	12	* http://www.opensource.apple.com/apsl/ and read it before using this
	13	* file.
1815bff5 A	14	*
	15	* The Original Code and all software distributed under the License are
	16	* distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
	17	* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
	18	* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
c3a08f59 A	19	* FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
	20	* Please see the License for the specific language governing rights and
	21	* limitations under the License.
1815bff5 A	22	*
	23	* @APPLE_LICENSE_HEADER_END@
	24	*/
	25	#if defined(LIBC_SCCS) && !defined(lint)
	26	#if 0
	27	static char elsieid[] = "@(#)ialloc.c 8.28";
	28	#else
	29	static char rcsid[] = "$OpenBSD: ialloc.c,v 1.3 1997/01/14 03:16:45 millert Exp $";
	30	#endif
	31	#endif /* LIBC_SCCS and not lint */
	32
	33	/LINTLIBRARY/
	34
	35	#include "private.h"
	36
	37	#define nonzero(n) (((n) == 0) ? 1 : (n))
	38
	39	char * icalloc P((int nelem, int elsize));
	40	char * icatalloc P((char * old, const char * new));
	41	char * icpyalloc P((const char * string));
	42	char * imalloc P((int n));
	43	void * irealloc P((void * pointer, int size));
	44	void ifree P((char * pointer));
	45
	46	char *
	47	imalloc(n)
	48	const int n;
	49	{
	50	return malloc((size_t) nonzero(n));
	51	}
	52
	53	char *
	54	icalloc(nelem, elsize)
	55	int nelem;
	56	int elsize;
	57	{
	58	if (nelem == 0 \|\| elsize == 0)
	59	nelem = elsize = 1;
	60	return calloc((size_t) nelem, (size_t) elsize);
	61	}
	62
	63	void *
	64	irealloc(pointer, size)
	65	void * const pointer;
	66	const int size;
	67	{
	68	if (pointer == NULL)
	69	return imalloc(size);
	70	return realloc((void *) pointer, (size_t) nonzero(size));
	71	}
	72
	73	char *
	74	icatalloc(old, new)
	75	char * const old;
	76	const char * const new;
	77	{
	78	register char * result;
	79	register int oldsize, newsize;
	80
	81	newsize = (new == NULL) ? 0 : strlen(new);
	82	if (old == NULL)
	83	oldsize = 0;
	84	else if (newsize == 0)
	85	return old;
86	else oldsize = strlen(old);
87	if ((result = irealloc(old, oldsize + newsize + 1)) != NULL)
88	if (new != NULL)
89	(void) strcpy(result + oldsize, new);
90	return result;
91	}
92
93	char *
94	icpyalloc(string)
95	const char * const string;
96	{
97	return icatalloc((char *) NULL, string);
98	}
99
100	void
101	ifree(p)
102	char * const p;
103	{
104	if (p != NULL)
105	(void) free(p);
106	}
107
108	void
109	icfree(p)
110	char * const p;
111	{
112	if (p != NULL)
113	(void) free(p);
114	}