/**
* Detach node and all its sub-tree from a tree, making it the new root of
* a smaller tree.
*/
void
xnode_detach(xnode_t *xn)
{
etree_t t;
xnode_check(xn);
etree_init_root(&t, xn, TRUE, offsetof(xnode_t, node));
etree_detach(&t, xn);
}
/**
* Free sub-tree, destroying all its items and removing the reference in
* the parent node, if any.
*
* @param tree the tree descriptor
* @param item root item of sub-tree to remove
* @param fcb free routine for each item
*/
void
etree_sub_free(etree_t *tree, void *item, free_fn_t fcb)
{
etree_t dtree;
etree_check(tree);
etree_detach(tree, item);
etree_init_root(&dtree, item, etree_is_extended(tree), tree->offset);
etree_free(&dtree, fcb);
}
