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/* $Id: memory.c,v 1.3 2005/10/18 21:06:26 ellson Exp $ $Revision: 1.3 $ */
/* vim:set shiftwidth=4 ts=8: */
/**********************************************************
* This software is part of the graphviz package *
* http://www.graphviz.org/ *
* *
* Copyright (c) 1994-2004 AT&T Corp. *
* and is licensed under the *
* Common Public License, Version 1.0 *
* by AT&T Corp. *
* *
* Information and Software Systems Research *
* AT&T Research, Florham Park NJ *
**********************************************************/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <stdio.h>
#include <string.h>
#include "memory.h"
void *zmalloc(size_t nbytes)
{
char *rv;
if (nbytes == 0)
return 0;
rv = gmalloc(nbytes);
memset(rv, 0, nbytes);
return rv;
}
void *zrealloc(void *ptr, size_t size, size_t elt, size_t osize)
{
void *p = realloc(ptr, size * elt);
if (p == NULL && size) {
fprintf(stderr, "out of memory\n");
abort();
}
if (osize < size)
memset((char *) p + (osize * elt), '\0', (size - osize) * elt);
return p;
}
void *gmalloc(size_t nbytes)
{
char *rv;
if (nbytes == 0)
return NULL;
rv = malloc(nbytes);
if (rv == NULL) {
fprintf(stderr, "out of memory\n");
abort();
}
return rv;
}
void *grealloc(void *ptr, size_t size)
{
void *p = realloc(ptr, size);
if (p == NULL && size) {
fprintf(stderr, "out of memory\n");
abort();
}
return p;
}
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