stackcomposition.h

《c＋＋大学教程》源码

// Fig. 17.12: stackcomposition.h
// Template Stack class definition with composed List object.
#ifndef STACKCOMPOSITION
#define STACKCOMPOSITION

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

template< class STACKTYPE >
class Stack {

public:
   // no constructor; List constructor does initialization

   // push calls stackList object's insertAtFront function
   void push( const STACKTYPE &data ) 
   { 
      stackList.insertAtFront( data ); 
   
   } // end function push
   
   // pop calls stackList object's removeFromFront function
   bool pop( STACKTYPE &data ) 
   { 
      return stackList.removeFromFront( data ); 
   
   } // end function pop
   
   // isStackEmpty calls stackList object's isEmpty function
   bool isStackEmpty() const 
   { 
      return stackList.isEmpty(); 
   
   } // end function isStackEmpty
   
   // printStack calls stackList object's print function
   void printStack() const 
   { 
      stackList.print(); 
   
   } // end function printStack

private:
   List< STACKTYPE > stackList;  // composed List object

}; // end class Stack

#endif

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