shithub: sox

ref: a26797de62057819c28732da90a48f18cb938e70
dir: /src/xmalloc.c/

/* Memory allocation functions
   Copyright (c) 2005-2006 Reuben Thomas.
   All rights reserved.

   This file is part of SoX.

   SoX 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, or (at your option) any later
   version.

   SoX 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 SoX; see the file COPYING.  If not, write to the Free
   Software Foundation, Fifth Floor, 51 Franklin Street, Boston, MA
   02111-1301, 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;
}