Qt Toolkit - QQueue Class

# QQueue Class Reference

The QQueue class is a template class that provides a queue. More...

`#include <qqueue.h>`

List of all member functions.

## Public Members

- QQueue ()
- QQueue ( const QQueue<type> & queue )
- ~QQueue ()
- QQueue<type>& operator= ( const QQueue<type> & queue )
- bool autoDelete () const
- void setAutoDelete ( bool enable )
- virtual uint count () const
- bool isEmpty () const
- void enqueue ( const type * d )
- type* dequeue ()
- bool remove ()
- virtual void clear ()
- type* head () const
- operator type* ()const
- type* current () const

## Detailed Description

The QQueue class is a template class that provides a queue.

QQueue is implemented as both a template and a macro class. Define a template instance QQueue<X> to create a queue that operates on pointers to X, or X*.

A stack is a collection that can be used to enqueue and dequeue items.

See also: Collection Classes

## Member Function Documentation

### QQueue::QQueue ()

Creates an empty queue.

### QQueue::QQueue ( const QQueue<type> & queue )

Creates a queue from another.

Only the pointers are copied.

### QQueue::~QQueue ()

Destroys the list. Items in the list are destroyed if autoDelete() is TRUE.

### QQueue::operator type* () const

Returns a reference to the first item in the queue. The queue is not changed.

### type* QQueue::current () const

Returns a reference to the first item in the queue. The queue is not changed.

### type* QQueue::dequeue ()

Removes the front item from the queue. Last in, last out.

### void QQueue::enqueue ( const type * d )

Adds an item to the queue. Last in, last out.

### type* QQueue::head () const

Returns a reference to the first item in the queue. The queue is not changed.

### bool QQueue::isEmpty () const

Returns TRUE if there are no items to be dequeued

### QQueue<type>& QQueue::operator= ( const QQueue<type> & queue )

Assigns queue to this queue and returns a reference to this queue.

This queue is first cleared, then each item in queue is enqueued to this queue. Only the pointers are copied (shallow copy).

### bool QQueue::remove ()

Removes the front item from the queue. Last in, last out. The item is deleted if autoDelete() is TRUE. Returns TRUE if there was an item to remove.

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This file is part of the Qt toolkit, copyright © 1995-99 Troll Tech, all rights reserved.

It was generated from the following files:

- qqueue.h: 1998/08/27
- qqueue.doc: 1997/08/06