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48 lines
1.5 KiB
C++
48 lines
1.5 KiB
C++
QueueAr.h - Header file for queue - array version
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#ifndef QUEUEAR_H
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#define QUEUEAR_H
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#include "vector.h"
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#include "dsexceptions.h"
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// Queue class -- array implementation
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//
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// CONSTRUCTION: with or without a capacity; default is 10
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//
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// ******************PUBLIC OPERATIONS*********************
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// void enqueue( x ) --> Insert x
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// void dequeue( ) --> Return and remove least recently inserted item
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// Object getFront( ) --> Return least recently inserted item
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// bool isEmpty( ) --> Return true if empty; else false
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// bool isFull( ) --> Return true if full; else false
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// void makeEmpty( ) --> Remove all items
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// ******************ERRORS********************************
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// Overflow and Underflow thrown as needed
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template <class Object>
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class Queue
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{
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public:
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explicit Queue( int capacity = 10 );
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bool isEmpty( ) const;
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bool isFull( ) const;
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const Object & getFront( ) const;
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void makeEmpty( );
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Object dequeue( );
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void enqueue( const Object & x );
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private:
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vector<Object> theArray;
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int currentSize;
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int front;
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int back;
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void increment( int & x );
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};
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#include "QueueAr.cpp"
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#endif
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