Deleting linked lists.

[Byron Warner]

Thanks to all of you who responded, to my post.
To summarize:

In general it is not safe to assume anything about the
contents of freed data.  Most people suggested using a
temporary variable, ie:


struct list *next;
while (ptr) { next = ptr->next; free(ptr); ptr = next; }

but also some one suggested recursion:
void listfree(List *l) {
		if (l->next != NULL)
			listfree(l->next);
		free(l->data);
		free(l);
	}

-- 
----
Byron F. Warner					warner at cs.unc.edu
University of North Carolina - Chapel Hill	Computer Sci Department
"The opinions expressed here should be yours."