Hey there I have this doubly linked class I need help with t

 Hey there I have this doubly linked class, I need help with this copy constructor.   

 Here is the Node class:    

 class Node { private:     T data;     Node<T> *prev;     Node<T> *next; 

 public:   

 template<class T> Node<T> *Node<T>::getPrev() const { return prev; }  template<class T> Node<T> *Node<T>::getNext() const { return next; } 

  --------------------------------- Here is the header file:    

 template<class T> class DLinkedStack : public StackInterface<T> { 

 private:     Node<T> *headPtr;    // Pointer to first node in the chain;     Node<T> *topPtr;     // to the end  

 template<class T> DLinkedStack<T>::DLinkedStack(const DLinkedStack<T> &aStack) {     //TODO - Implement the copy constructor  }