1 files changed, 9 insertions, 0 deletions
diff --git a/collections/map/map.c b/collections/map/map.c
index 803b5ad..712a895 100644
--- a/collections/map/map.c
+++ b/collections/map/map.c
@@ -25,3 +25,12 @@ cmp_func cmp;
 
 	return tmp;
 }
+
+int map_size(root)
+map *root;
+{
+	if (!root || !root->key)
+		return 0;
+
+	return map_size(root->left) + map_size(root->right) + 1;
+}