source: trunk/src/qt3support/tools/q3ptrqueue.qdoc@ 792

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/*!
    \class Q3PtrQueue
    \brief The Q3PtrQueue class is a template class that provides a queue.
    \compat

    Q3ValueVector can be used as an STL-compatible alternative to this
    class.

    A template instance Q3PtrQueue\<X\> is a queue that operates on
    pointers to X (X*).

    A queue is a first in, first out structure. Items are added to the
    tail of the queue with enqueue() and retrieved from the head with
    dequeue(). You can peek at the head item without dequeing it using
    head().

    You can control the queue's deletion policy with setAutoDelete().

    For compatibility with the Q3PtrCollection classes, current() and
    remove() are provided; both operate on the head().

    \sa Q3PtrList Q3PtrStack
*/

/*!
    \fn Q3PtrQueue::Q3PtrQueue ()

    Creates an empty queue with autoDelete() set to FALSE.
*/

/*!
    \fn Q3PtrQueue::Q3PtrQueue( const Q3PtrQueue<type>& queue )

    Creates a queue from \a queue.

    Only the pointers are copied; the items are not. The autoDelete()
    flag is set to FALSE.
*/

/*!
    \fn Q3PtrQueue::~Q3PtrQueue()

    Destroys the queue. Items in the queue are deleted if autoDelete()
    is TRUE.
*/

/*!
    \fn Q3PtrQueue<type>& Q3PtrQueue::operator= (const Q3PtrQueue<type>& queue)

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

    This queue is first cleared and then each item in \a queue is
    enqueued to this queue. Only the pointers are copied.

    \warning The autoDelete() flag is not modified. If it is TRUE for
    both \a queue and this queue, deleting the two lists will cause \e
    double-deletion of the items.
*/

/*!
    \fn bool Q3PtrQueue::isEmpty() const

    Returns TRUE if the queue is empty; otherwise returns FALSE.