11-binary_tree_size.c

#include "binary_trees.h"
/**
  * binary_tree_size - measures the size of the tree.
  * @tree: pointer to the root node of the tree to measure the size.
  *
  * Return: size of the tree or 0
  */
size_t binary_tree_size(const binary_tree_t *tree)
{
	size_t size;

	if (tree == NULL)
		return (0);

	size = binary_tree_size(tree->left) + binary_tree_size(tree->right) + 1;

	return (size);
}