nemtorol.cc

#include <vector>
#include <cstdio>

struct Node {
    int value;
    Node *next;

    Node(int _value, Node *_next): value(_value), next(_next) {}

    ~Node() {
        std::printf("Destroying %d\n", value);
    }
};

int main() {
    auto head = new Node(
        0, new Node (
            1, new Node(
                2, new Node(
                    3, nullptr
                )
            )
        )
    );

    auto tmp = head;
    auto next = head->next;

    while (next != nullptr) {
        delete tmp;
        tmp = next;
        next = next->next;
    }
}

// output:
// Destroying 0
// Destroying 1
// Destroying 2