10-binary_tree_depth.c

#include "binary_trees.h"

/**
 * binary_tree_depth - measures the depth of a node in a binary tree
 * @tree: Pointer to the node to measure the depth
 *
 * Return: The depth or 0 if tree is NULL
 */

size_t binary_tree_depth(const binary_tree_t *tree)
{
	if (!tree)
		return (0);

	if (!tree->parent)
		return (0);

	return (1 + binary_tree_depth(tree->parent));
}