shithub: sox

ref: 95abfaef0fd71ffa2e3a5e98dafe1bfafe5cdc55
dir: /src/xmalloc.c/

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/* SoX Memory allocation functions
 *
 * Copyright (c) 2005-2006 Reuben Thomas.  All rights reserved.
 *
 * This program 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 2 of the License, or (at your
 * option) any later version.
 *
 * This program 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 this program; if not, write to the Free Software Foundation, Inc.,
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 */

#include "sox_i.h"
#include <stdlib.h>

/* Resize an allocated memory area; abort if not possible.
 *
 * For malloc, `If the size of the space requested is zero, the behavior is
 * implementation defined: either a null pointer is returned, or the
 * behavior is as if the size were some nonzero value, except that the
 * returned pointer shall not be used to access an object'
 */
void *lsx_realloc(void *ptr, size_t newsize)
{
  if (ptr && newsize == 0) {
    free(ptr);
    return NULL;
  }

  if ((ptr = realloc(ptr, newsize)) == NULL) {
    sox_fail("out of memory");
    exit(2);
  }

  return ptr;
}