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RedHat 9 (Linux i386) - man page for qptrstack (redhat section 3qt)

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 is 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 1992-2001 Trolltech AS, 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 (3.1.1). Trolltech AS 9 December 2002 QPtrStack(3qt)


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