// Node.cpp
// templated node class for use with linked lists
// the header and implementation are combined because of templates

#ifndef _NODE_H
#define _NODE_H

// forward declarations, so Node can make them friends
template < class T > class Set;	
template < class T > class SetIter;


template < class T > class Node {
  private:
    T info;
    Node < T > *next;		// link to next node

  public:
    Node():next(0) {
        // implicitly calls default constructor for T info
	}

    Node(T n, Node * link = 0):info(n), next(link) {
    }

    friend class Set < T >;	// let Set access private members
    friend class SetIter < T >;	// let SetIter access private members

};  // end of class Node definition

#endif