template <class D>
class SLList {
	SLListNode<D> *Head; 
	SLListNode<D> *Tail; 
	public:
	friend class BSTree<D>;
	static int Count; 
	string Name; 
	SLList(string id); 
	~SLList(void); 
	int GetCount(void); 
	D GetRecord(void); 
	bool AddRecord(D record); 
	void Show(void); 
	bool RemoveRecord(void); 
	bool InputRecord(int num, bool sort); 
	SLList<D> operator+(SLList<D> ob2);
};
 
template <class D>
SLList<D> SLList<D>::operator+(SLList<D> ob2) {
	return *this;
}
 
template <class D>
SLList<D>::SLList(string id) {
	Name = id;
	Head = new SLListNode<D>;
	Tail = Head;
	Count++;
	return;
}
 
template <class D>
SLList<D>::~SLList(void) {
	SLListNode<D> *aux;
	aux = Head;
	while(aux!=Tail) {
		Head = Head->Next;
		delete aux;
		aux = Head;
	}
	delete aux;
	Count--;
	return;
}
 
int main(void) {
	SLList<int> list1("IntList1");
	SLList<int> list2("IntList2");
	list1.InputRecord(0, true);
	list1.Show();
	list2.InputRecord(0, true);
	list2.Show();
	list1 = list1 + list2;
        cout << endl << "// here the program evaluates 'list1 = list1 + list2;' " << endl;
       // from here on both list1 and list2 are all messed up
	list1.Show();
	list2.Show();
	cin.get();
	return EXIT_SUCCESS;
}

How many records would you like to add to the SLList 'IntList1'?
3
 
Please insert record [1]
1
 
Please insert record [2]
2
 
Please insert record [3]
3
 
The SLList 'IntList1' is:
{ 1, 2, 3 }
 
How many records would you like to add to the SLList 'IntList2'?
3
 
Please insert record [1]
4
 
Please insert record [2]
5
 
Please insert record [3]
6
 
The SLList 'IntList2' is:
{ 4, 5, 6 }
 
// here the program evaluates 'list1 = list1 + list2;'
 
The SLList 'IntList1' is:
{ 134525024, 134524960, 134525040 }
 
The SLList 'IntList2' is:
{ 134525072, 134525008, 134525088 }

template <class D>
bool SLList<D>::AddRecord(D record) {
	Tail->Data = record;
	Tail->Next = new SLListNode<D>;
	Tail = Tail->Next;
        return true;
}

template <class D>
SLList<D>& SLList<D>::operator+(SLList<D> &ob2) {
	return *this;
}