Method delete_min

src/tree/binary/rb2.rs:136–147

(&mut self)

    }

    fn delete_min(&mut self) {
        let mut root = NodeQuery::new(self.root);
        if root.is_some() {
            if !root.left().is_red() && !root.right().is_red() {
                root.set_color(Color::Red);
            }
            root.node = del_min(root.node);
            root.set_color(Color::Black);
            self.root = root.node;
            self.set_size(self.size() - 1);
        }
    }

    fn delete_max(&mut self) {
        let mut root = NodeQuery::new(self.root);