- child->rb_parent = parent;
- if (parent)
- {
- if (parent->rb_left == node)
- parent->rb_left = child;
- else
- parent->rb_right = child;
- }
- else
- root->rb_node = child;
-
- if (node->rb_parent == old)
+ rb_set_parent(child, parent);
+ if (parent == old) {
+ parent->rb_right = child;