mirror of
https://code.videolan.org/videolan/vlc
synced 2024-07-25 09:41:30 +02:00
47 lines
947 B
C
47 lines
947 B
C
|
/* $NetBSD: tdestroy.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.
|
||
|
|
*/
|
||
|
|
|
||
|
|
#define _SEARCH_PRIVATE
|
||
|
|
|
||
|
|
#ifdef HAVE_CONFIG_H
|
||
|
|
# include <config.h>
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#include <sys/cdefs.h>
|
||
|
|
#include <assert.h>
|
||
|
|
#include <stdlib.h>
|
||
|
|
|
||
|
|
/* Walk the nodes of a tree */
|
||
|
|
static void
|
||
|
|
trecurse(node_t* root, 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
|
||
|
|
tdestroy(vrootp, freefct)
|
||
|
|
void *vrootp;
|
||
|
|
void (*freefct)(void *);
|
||
|
|
{
|
||
|
|
node_t *root = (node_t *) vrootp;
|
||
|
|
|
||
|
|
if (root != NULL)
|
||
|
|
trecurse(root, freefct);
|
||
|
|
}
|