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/* $NetBSD: tdelete.c,v 1.2 1999/09/16 11:45:37 lukem Exp $ */
/*
* Tree search generalized from Knuth (6.2.2) Algorithm T just like
* the AT&T man page says.
*
* The node_t structure is for internal use only, lint doesn't grok it.
*
* Written by reading the System V Interface Definition, not the code.
*
* Totally public domain.
*/
#include <sys/cdefs.h>
#if 0
#if defined(LIBC_SCCS) && !defined(lint)
__RCSID("$NetBSD: tdelete.c,v 1.2 1999/09/16 11:45:37 lukem Exp $");
#endif /* LIBC_SCCS and not lint */
#endif
#include <assert.h>
#define _SEARCH_PRIVATE
#include <search.h>
#include <stdlib.h>
/* Walk the nodes of a tree */
static void
trecurse(root, free_action)
node_t *root; /* Root of the tree to be walked */
void (*free_action)(void *);
{
if (root->llink != NULL)
trecurse(root->llink, free_action);
if (root->rlink != NULL)
trecurse(root->rlink, free_action);
(*free_action) ((void *) root->key);
free(root);
}
void
_DEFUN(tdestroy, (vrootp, freefct),
void *vrootp _AND
void (*freefct)(void *))
{
node_t *root = (node_t *) vrootp;
if (root != NULL)
trecurse(root, freefct);
}
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