queue.h

《c＋＋大学教程》源码

// Fig. 17.13: queue.h
// Template Queue class definition derived from class List.
#ifndef QUEUE_H
#define QUEUE_H

#include "list.h"  // List class definition

template< class QUEUETYPE >
class Queue: private List< QUEUETYPE > {

public:
   // enqueue calls List function insertAtBack
   void enqueue( const QUEUETYPE &data ) 
   { 
      insertAtBack( data ); 
   
   } // end function enqueue

   // dequeue calls List function removeFromFront
   bool dequeue( QUEUETYPE &data ) 
   { 
      return removeFromFront( data ); 
   
   } // end function dequeue

   // isQueueEmpty calls List function isEmpty
   bool isQueueEmpty() const 
   {
      return isEmpty(); 
   
   } // end function isQueueEmpty

   // printQueue calls List function print
   void printQueue() const 
   { 
      print(); 
   
   } // end function printQueue

}; // end class Queue

#endif

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