11-binary_tree_size.c

#include "binary_trees.h"

/**
 * binary_tree_size -  a function that measures the size of a binary tree
 * @tree: is a pointer to the root node of the tree to measure the size
 * Return: return size or 0 if failed
*/
size_t binary_tree_size(const binary_tree_t *tree)
{
	if (!tree)
		return (0);
	return (1 + binary_tree_size(tree->left) + binary_tree_size(tree->right));

}