/* Filename:  queue.h

   Programmer:  Br. David Carlson

   Date:  April 13, 1998

   This is the header file to provide the abstract base class called
   QueBaseClass.
*/

#include "itemtype.h"


class QueBaseClass
   {
   public:
      virtual void Insert(const ItemType & Item) = 0;
      virtual void Remove(ItemType & Item) = 0;
      virtual bool Empty(void) const = 0;
   };

// The = 0; means there is no code; these are "pure virtual" functions.