Question

I was trying to use the overload operator method to copy the entries of one queue into another, but I am going wrong with my function. I don’t know how else to access the values of the queue “original” any other way than what I have below:

struct Node
{
   int item;
   Node* next;
};

class Queue
{
public:
    // Extra code here
    void operator = (const Queue &original);
protected:
    Node *front, *end;
};

void Queue::operator=(const Queue &original)
{
    //THIS IS WHERE IM GOING WRONG
    while(original.front->next != NULL) {
        front->item = original.front->item;
        front->next = new Node;
        front = front->next;
        original.front = original.front->next;
    }
}

Answer 1

void Queue::operator=(const Queue &original)
{
    Node* tmp = original.front;
    //THIS IS WHERE IM GOING WRONG
    while(tmp->next != NULL) {
        front->item = tmp->item;
        front->next = new Node;
        front = front->next;
        tmp = tmp->next;
    }
}