c++ - 我要删除对象还是仅删除其指针

Question

我正在实现自己的队列练习版本，但想知道我是否在“pop()”函数中正确删除了元素。

我是C++的新手，我不确定是否只是删除指向要删除的节点的指针，而不是实际的节点本身。

#include <iostream>

template <typename T>
class Queue {
    struct Node {
        Node* next;
        Node* previous;
        T data;
        Node(T value){
            next = nullptr;
            previous = nullptr;
            data = value;
        }
    };

    Node* front;
    Node* back;

    public:
        Queue(){
            front = nullptr;
            back = nullptr;
        }

        void push_back(T data){
            Node* n = new Node(data);
            if(front == nullptr){
                front = n;
                back = n;
            } else {
                back->next = n;
                back = n;
            }
        }

        void print(){
            Node* cursor = front;
            while(cursor != nullptr){
                std::cout << cursor->data << '\n';
                cursor = cursor->next;
            }
        }

        T pop(){
            Node* temp = front;
            T element = temp->data;
            front = front->next;
            delete temp; // Is this deleting the pointer or the Node it points to?
            return element;
        }
};

int main(){
    Queue<int> q;
    q.push_back(1);
    q.push_back(2);
    q.push_back(3);
    q.print();
    int element = q.pop();
    q.print();
}

Answer 1

delete删除传递给它的指针所指向的对象。