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+++ b/src/qt3support/tools/q3valuestack.qdoc Mon Jan 11 14:00:40 2010 +0000
@@ -0,0 +1,149 @@
+/****************************************************************************
+**
+** 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()
+*/
+
+
+
+
+