Changed avl_get() to use loop instead of recursion

src/avltree.c

@@ -179,20 +179,20 @@ struct avltree_t *avl_remove(struct avltree_t *tree, int key)
 
 void *avl_get(struct avltree_t *tree, int key)
 {
-    if(tree == NULL)
+    while(tree != NULL)
     {
-        return NULL;
+        if(key < tree->key)
-    }
-    else if(key < tree->key)
         {
-        return avl_get(tree->left, key);
+            tree = tree->left;
         }
         else if(key > tree->key)
         {
-        return avl_get(tree->right, key);
+            tree = tree->right;
         }
         else
         {
             return tree->value;
         }
+    }
+    return NULL;
 }