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- /* safe-free.c: free with error checking.
-
- Copyright (C) 1992 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., 675 Mass Ave, Cambridge, MA 02139, USA. */
-
- #include "config.h"
-
-
- /* `free' itself does not return an error status. So all we can do here
- is check for nulls. */
-
- void
- safe_free (address *item)
- {
- if (item == NULL || *item == NULL)
- {
- fprintf (stderr, "safe_free: Attempt to free a null item.\n");
- abort ();
- }
-
- free (*item);
-
- *item = NULL;
- }
-