Method replaceChild

templates/rb.cpp:73–81

        }

        void replaceChild(RBTreeNode* n, RBTreeNode* new_node)
        {
            if (n == left) {
                left = new_node;
            } else {
                right = new_node;
            }
            new_node->p = this;
        }

        void addChild(RBTree* t, RBTreeNode* z)
        {