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-/****************************************************************************
-**
-** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
-** All rights reserved.
-** Contact: Nokia Corporation (qt-info@nokia.com)
-**
-** This file is part of the documentation of the Qt Toolkit.
-**
-** $QT_BEGIN_LICENSE:LGPL$
-** No Commercial Usage
-** This file contains pre-release code and may not be distributed.
-** You may use this file in accordance with the terms and conditions
-** contained in the Technology Preview License Agreement accompanying
-** this package.
-**
-** GNU Lesser General Public License Usage
-** Alternatively, this file may be used under the terms of the GNU Lesser
-** General Public License version 2.1 as published by the Free Software
-** Foundation and appearing in the file LICENSE.LGPL included in the
-** packaging of this file. Please review the following information to
-** ensure the GNU Lesser General Public License version 2.1 requirements
-** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
-**
-** In addition, as a special exception, Nokia gives you certain additional
-** rights. These rights are described in the Nokia Qt LGPL Exception
-** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
-**
-** If you have questions regarding the use of this file, please contact
-** Nokia at qt-info@nokia.com.
-**
-**
-**
-**
-**
-**
-**
-**
-** $QT_END_LICENSE$
-**
-****************************************************************************/
-
-/*!
- \class Q3ValueStack
- \brief The Q3ValueStack class is a value-based template class that provides a stack.
- \compat
-
- Define a template instance Q3ValueStack\<X\> to create a stack of
- values that all have the class X.
-
- Note that Q3ValueStack does not store pointers to the members of
- the stack; it holds a copy of every member. That is why these
- kinds of classes are called "value based"; Q3PtrStack, Q3PtrList,
- Q3Dict, etc., are "pointer based".
-
- 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(). The top() function provides access to the topmost item
- without removing it.
-
- Example:
- \snippet doc/src/snippets/code/doc_src_q3valuestack.qdoc 0
-
- Q3ValueStack is a specialized Q3ValueList provided for convenience.
- All of Q3ValueList's functionality also applies to Q3PtrStack, for
- example the facility to iterate over all elements using
- Q3ValueStack<T>::Iterator. See Q3ValueListIterator for further
- details.
-
- Some classes cannot be used within a Q3ValueStack, for example
- everything derived from QObject and thus all classes that
- implement widgets. Only values can be used in a Q3ValueStack. To
- qualify as a value, the class must provide
- \list
- \i a copy constructor;
- \i an assignment operator;
- \i a default constructor, i.e. a constructor that does not take any arguments.
- \endlist
-
- Note that C++ defaults to field-by-field assignment operators and
- copy constructors if no explicit version is supplied. In many
- cases this is sufficient.
-*/
-
-
-/*!
- \fn Q3ValueStack::Q3ValueStack()
-
- Constructs an empty stack.
-*/
-
-/*!
- \fn Q3ValueStack::~Q3ValueStack()
-
- Destroys the stack. References to the values in the stack and all
- iterators of this stack become invalidated. Because Q3ValueStack is
- highly tuned for performance, you won't see warnings if you use
- invalid iterators because it is impossible for an iterator to
- check whether or not it is valid.
-*/
-
-
-/*!
- \fn void Q3ValueStack::push( const T& d )
-
- Adds element, \a d, to the top of the stack. Last in, first out.
-
- This function is equivalent to append().
-
- \sa pop(), top()
-*/
-
-/*!
- \fn T& Q3ValueStack::top()
-
- Returns a reference to the top item of the stack or the item
- referenced by end() if no such item exists. Note that you must not
- change the value the end() iterator points to.
-
- This function is equivalent to last().
-
- \sa pop(), push(), Q3ValueList::fromLast()
-*/
-
-
-/*!
- \fn const T& Q3ValueStack::top() const
-
- \overload
-
- Returns a reference to the top item of the stack or the item
- referenced by end() if no such item exists.
-
- This function is equivalent to last().
-
- \sa pop(), push(), Q3ValueList::fromLast()
-*/
-
-/*!
- \fn T Q3ValueStack::pop()
-
- Removes the top item from the stack and returns it.
-
- \sa top() push()
-*/
-
-
-
-
-