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/*
* Copyright (C) 1999, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2011,
* 2012, 2013 Free Software Foundation, Inc.
*
* This file is part of GNU libmatheval
*
* GNU libmatheval is free software: you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation, either version 3 of the
* License, or (at your option) any later version.
*
* GNU libmatheval is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with GNU libmatheval. If not, see
* <http://www.gnu.org/licenses/>.
*/
#if HAVE_CONFIG_H
#include "config.h"
#endif
#include "common.h"
#include "error.h"
#if !HAVE_BZERO && HAVE_MEMSET
#define bzero(buf, bytes) ((void) memset (buf, 0, bytes))
#endif
void *
xmalloc(size_t num)
{
/* Call malloc() and check return value. */
void *ptr_new = malloc(num);
if (!ptr_new)
error_fatal("unable to allocate memory");
return ptr_new;
}
void *
xrealloc(void *ptr, size_t num)
{
void *ptr_new;
/* If memory not already allocated, fall back to xmalloc(). */
if (!ptr)
return xmalloc(num);
/* Otherwise, call realloc() and check return value. */
ptr_new = realloc(ptr, num);
if (!ptr_new)
error_fatal("unable to allocate memory");
return ptr_new;
}
void *
xcalloc(size_t num, size_t size)
{
/* Allocate memory and fill with zeroes. */
void *ptr_new = xmalloc(num * size);
bzero(ptr_new, num * size);
return ptr_new;
}
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