Gets the number of nodes in the tree.
unsigned int rbtree_count(RBTree* tree);
| Name | Type | Description |
|---|---|---|
| tree | RBTree* | A pointer to the tree. |
Returns: The number of nodes (Key-Value pairs) in the tree.
RBTREE_DEFINE_H(ISTree, is_tree, int, char*)
RBTREE_DEFINE_C(ISTree, is_tree, int, char*, int_cmp) // The definition of int_cmp can be found in the RedBlackTree main page.
ISTree* tree = is_tree_create();
is_tree_add(tree, 0, "zero");
is_tree_add(tree, 1, "one");
unsigned int count = is_tree_count(tree);
printf("Number of items in the tree: %d\n", count);
is_tree_free(tree, true);
// Output:
// Number of items in the tree: 2