template <class type> void append(node<type>** l,const type& elem)
{
	if(*l==NULL)
		insert_first(&*l,elem);
	else
	{
		node<type>*temp=*l;
		node<type> *Q=new node<type>;
		Q->data=elem;
		while(temp->next!=NULL)
		{
			temp=temp->next;
		}
		temp->next=Q;
		Q->prev=temp;
	}
}

int main(int argc, char** argv)
{
	node<int>* q=NULL;//Create Empty Pointer that Will point to the Head of the List
	insert_first(&q,2);
	append(&q,5); //Here is the test
	print_l(q);
	system("PAUSE");
	return 0;
}