167     Node *rotateLeft(Node *Lower, Node *Higher);
168     Node *rotateRight(Node *Lower, Node *Higher);
666 RangeTree::Node *RangeTree::rotateLeft(Node *Lower, Node *Higher) {  in rotateLeft()  argument
667   assert(Higher->Right == Lower);  in rotateLeft()
674   Higher->Right = Lower->Left;  in rotateLeft()
675   update(Higher);  in rotateLeft()
676   Lower->Left = Higher;  in rotateLeft()
681 RangeTree::Node *RangeTree::rotateRight(Node *Lower, Node *Higher) {  in rotateRight()  argument
682   assert(Higher->Left == Lower);  in rotateRight()
689   Higher->Left = Lower->Right;  in rotateRight()
690   update(Higher);  in rotateRight()
691   Lower->Right = Higher;  in rotateRight()