realloc.c

linux平台中

/* rpl_realloc.c -- a replacement for broken realloc implementations
   Copyright (C) 2001 Free Software Foundation, Inc.

   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, 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */

#include <stdlib.h>

void *
rpl_realloc(void *ptr, size_t size)
{
  if (!ptr)
    return malloc(size);
  if (!size)
    {
      if (ptr)
        free(ptr);
      return malloc(size);
    }
  return realloc(ptr, size);
}