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QPtrStack(3qt)									   QPtrStack(3qt)

NAME
       QPtrStack - Template class that provides a stack

SYNOPSIS
       #include <qptrstack.h>

   Public Members
       QPtrStack ()
       QPtrStack ( const QPtrStack<type> & s )
       ~QPtrStack ()
       QPtrStack<type> & operator= ( const QPtrStack<type> & s )
       bool autoDelete () const
       void setAutoDelete ( bool enable )
       uint count () const
       bool isEmpty () const
       void push ( const type * d )
       type * pop ()
       bool remove ()
       void clear ()
       type * top () const
       operator type * () const
       type * current () const

   Protected Members
       virtual QDataStream & read ( QDataStream & s, QPtrCollection::Item & item )
       virtual QDataStream & write ( QDataStream & s, QPtrCollection::Item item ) const

DESCRIPTION
       The QPtrStack class is a template class that provides a stack.

       QValueStack is an STL-compatible alternative to this class.

       Define a template instance QPtrStack<X> to create a stack that operates on pointers to X,
       (X*).

       A stack is a last in, first out (LIFO) structure. Items are added to the top of the stack
       with push() and retrieved from the top with pop(). Use top() to get a reference to the top
       element without changing the stack.

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

       For compatibility with the QPtrCollection classes current() and remove() are provided;
       they both operate on the top().

       See also QPtrList, QPtrQueue, and Non-GUI Classes.

MEMBER FUNCTION DOCUMENTATION
QPtrStack::QPtrStack ()
       Creates an empty stack.

QPtrStack::QPtrStack ( const QPtrStack<type> & s )
       Creates a stack by making a shallow copy of another stack s.

QPtrStack::~QPtrStack ()
       Destroys the stack. All items will be deleted if autoDelete() is TRUE.

bool QPtrStack::autoDelete () const
       The same as QPtrCollection::autoDelete().

       See also setAutoDelete().

void QPtrStack::clear ()
       Removes all items from the stack, deleting them if autoDelete() is TRUE.

       See also remove().

uint QPtrStack::count () const
       Returns the number of items in the stack.

       See also isEmpty().

type * QPtrStack::current () const
       Returns a pointer to the top item on the stack (most recently pushed). The stack is not
       changed. Returns 0 if the stack is empty.

bool QPtrStack::isEmpty () const
       Returns TRUE if the stack contains no elements; otherwise returns FALSE.

QPtrStack::operator type * () const
       Returns a pointer to the top item on the stack (most recently pushed). The stack is not
       changed. Returns 0 if the stack is empty.

QPtrStack<;type> & QPtrStack::operator= ( const QPtrStack<type> & s )
       Sets the contents of this stack by making a shallow copy of another stack s. Elements
       currently in this stack will be deleted if autoDelete() is TRUE.

type * QPtrStack::pop ()
       Removes the top item from the stack and returns it. The stack must not be empty.

void QPtrStack::push ( const type * d )
       Adds an element d to the top of the stack. Last in, first out.

QDataStream &; QPtrStack::read ( QDataStream & s, QPtrCollection::Item & item ) [virtual
       protected]
       Reads a stack item, item, from the stream s and returns a reference to the stream.

       The default implementation sets item to 0.

       See also write().

bool QPtrStack::remove ()
       Removes the top item from the stack and deletes it if autoDelete() is TRUE. Returns TRUE
       if there was an item to pop; otherwise returns FALSE.

       See also clear().

void QPtrStack::setAutoDelete ( bool enable )
       Defines whether this stack auto-deletes its contents. The same as
       QPtrCollection::setAutoDelete().

       If enable is TRUE the stack auto-deletes its contents; if enable is FALSE the stack does
       not delete its contents.

       See also autoDelete().

type * QPtrStack::top () const
       Returns a pointer to the top item on the stack (most recently pushed). The stack is not
       changed. Returns 0 if the stack is empty.

QDataStream &; QPtrStack::write ( QDataStream & s, QPtrCollection::Item item ) const [virtual
       protected]
       Writes a stack item, item, to the stream s and returns a reference to the stream.

       The default implementation does nothing.

       See also read().

SEE ALSO
       http://doc.trolltech.com/qptrstack.html http://www.trolltech.com/faq/tech.html

COPYRIGHT
       Copyright 1992-2007 Trolltech ASA, http://www.trolltech.com.  See the license file
       included in the distribution for a complete license statement.

AUTHOR
       Generated automatically from the source code.

BUGS
       If you find a bug in Qt, please report it as described in
       http://doc.trolltech.com/bughowto.html.	Good bug reports help us to help you. Thank you.

       The definitive Qt documentation is provided in HTML format; it is located at
       $QTDIR/doc/html and can be read using Qt Assistant or with a web browser. This man page is
       provided as a convenience for those users who prefer man pages, although this format is
       not officially supported by Trolltech.

       If you find errors in this manual page, please report them to qt-bugs@trolltech.com.
       Please include the name of the manual page (qptrstack.3qt) and the Qt version (3.3.8).

Trolltech AS				 2 February 2007			   QPtrStack(3qt)
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