Thread: Accessing Iterator as private member of a class

My question is how can I access an iterator that is a private member of a class?

Code:

class Sequence
{
  friend ostream& operator<<(ostream& OUTPUT, const Sequence & s);
  
  public:
   
    ...

  private:
  list <int> intList;
  list <int> :: iterator ListIt;
}

...

ostream& operator<<(ostream& OUTPUT, const Sequence&  s)
{
  for(ListIt=s.intList.begin(); ListIt != intList.end(); ListIt++)
 {
  cout << *ListIt;
 }
 return OUTPUT;
}

I have tried the above, and several other ways and I keep getting a compilier error that ListIt is undeclared. Thanks.