Re: template class method with default params

I can't seem to make my compiler happy. Is it possible to have a
template class method that takes a default parameter?

Can that default value be set to a value returned by another method in
the same class?

Can that value type be a template class itself?

current code (snipped irrelevant code):

template <class T>
class GenericTree
{
  class GenericTreeNode
  {
  };

public:

  class Iterator_BreadthFirst
  {
     GenericTreeNode * m_node;

  public:
     Iterator_BreadthFirst(GenericTreeNode * node);
     Iterator_BreadthFirst(const Iterator_BreadthFirst & rhs);
  };

  Iterator_BreadthFirst begin();

  Iterator_BreadthFirst GetFirstOfDepth(int depth,
GenericTree<T>::Iterator_BreadthFirst start = begin());

};

template <class T>
typename GenericTree<T>::Iterator_BreadthFirst
GenericTree<T>::begin()
{
  return Iterator_BreadthFirst(m_root);
}

template <class T>
typename GenericTree<T>::Iterator_BreadthFirst
GenericTree<T>::GetFirstOfDepth(
  int depth, GenericTree<T>::Iterator_BreadthFirst start)
{
  return Iterator_BreadthFirst(0);
}