**fig3_30.txt**

/* 1*/	#include <iostream.h>
/* 2*/	static const Default_Max_Size = 101;

/* 3*/	template <class Element_Type>
/* 4*/	class Cursor
/* 5*/	{
/* 6*/	  private:
/* 7*/	    unsigned int Space_Size;

/* 8*/	    struct Node
/* 9*/	    {
/*10*/	        Element_Type Element;
/*11*/	        unsigned int Next;
/*12*/	    };

/*13*/	    Node *Cursor_Space;
/*14*/	    friend class List<Element_Type>;

/*15*/	    void Init_Space( );
/*16*/	  public:
/*17*/	    // Constructors.
/*18*/	    Cursor( unsigned int Max_Size = Default_Max_Size );

/*19*/	    // Destructor.
/*20*/	    ~Cursor( ) { delete [ ] Cursor_Space; }

/*21*/	    // Member functions.
/*22*/	    unsigned int Cnew( Element_Type E = 0, unsigned int N = 0 );
/*23*/	    void Cdelete( unsigned int P );
/*24*/	};