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+/****************************************************************************
+**
+** QMap and QMapIterator class documentation
+**
+** Copyright (C) 1992-2008 Trolltech ASA.  All rights reserved.
+**
+** This file is part of the Qt GUI Toolkit.
+**
+** This file may be used under the terms of the GNU General
+** Public License versions 2.0 or 3.0 as published by the Free
+** Software Foundation and appearing in the files LICENSE.GPL2
+** and LICENSE.GPL3 included in the packaging of this file.
+** Alternatively you may (at your option) use any later version
+** of the GNU General Public License if such license has been
+** publicly approved by Trolltech ASA (or its successors, if any)
+** and the KDE Free Qt Foundation.
+**
+** Please review the following information to ensure GNU General
+** Public Licensing retquirements will be met:
+** http://trolltech.com/products/qt/licenses/licensing/opensource/.
+** If you are unsure which license is appropriate for your use, please
+** review the following information:
+** http://trolltech.com/products/qt/licenses/licensing/licensingoverview
+** or contact the sales department at [email protected].
+**
+** This file may be used under the terms of the Q Public License as
+** defined by Trolltech ASA and appearing in the file LICENSE.QPL
+** included in the packaging of this file.  Licensees holding valid Qt
+** Commercial licenses may use this file in accordance with the Qt
+** Commercial License Agreement provided with the Software.
+**
+** This file is provided "AS IS" with NO WARRANTY OF ANY KIND,
+** INCLUDING THE WARRANTIES OF DESIGN, MERCHANTABILITY AND FITNESS FOR
+** A PARTICULAR PURPOSE. Trolltech reserves all rights not granted
+** herein.
+**
+**********************************************************************/
+
+
+/*****************************************************************************
+  QMap documentation
+ *****************************************************************************/
+
+/*!
+    \class QMap qmap.h
+    \brief The QMap class is a value-based template class that
+    provides a dictionary.
+
+    \ingroup qtl
+    \ingroup tools
+    \ingroup shared
+    \mainclass
+
+    QMap is a Qt implementation of an STL-like map container. It can
+    be used in your application if the standard \c map is not
+    available on all your target platforms. QMap is part of the \link
+    qtl.html Qt Template Library\endlink.
+
+    QMap\<Key, Data\> defines a template instance to create a
+    dictionary with keys of type Key and values of type Data. QMap
+    does not store pointers to the members of the map; instead, it
+    holds a copy of every member. For this reason, QMap is
+    value-based, whereas QPtrList and QDict are pointer-based.
+
+    QMap contains and manages a collection of objects of type Data
+    with associated key values of type Key and provides iterators that
+    allow the contained objects to be addressed. QMap owns the
+    contained items.
+
+    Some classes cannot be used within a QMap. For example everything
+    derived from QObject and thus all classes that implement widgets.
+    Only values can be used in a QMap. 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.
+
+    The class used for the key retquires that the \c operator< is
+    implemented to define ordering of the keys.
+
+    QMap's function naming is consistent with the other Qt classes
+    (e.g., count(), isEmpty()). QMap also provides extra functions for
+    compatibility with STL algorithms, such as size() and empty().
+    Programmers already familiar with the STL \c map can use these
+    the STL-like functions if preferred.
+
+    Example:
+    \target qmap-eg
+    \code
+    #include <qstring.h>
+    #include <qmap.h>
+    #include <qstring.h>
+
+    class Employee
+    {
+    public:
+	Employee(): sn(0) {}
+	Employee( const QString& forename, const QString& surname, int salary )
+	    : fn(forename), sn(surname), sal(salary)
+	{ }
+
+	QString forename() const { return fn; }
+	QString surname() const { return sn; }
+	int salary() const { return sal; }
+	void setSalary( int salary ) { sal = salary; }
+
+    private:
+	QString fn;
+	QString sn;
+	int sal;
+    };
+
+    int main(int argc, char **argv)
+    {
+	QApplication app( argc, argv );
+
+	typedef QMap<QString, Employee> EmployeeMap;
+	EmployeeMap map;
+
+	map["JD001"] = Employee("John", "Doe", 50000);
+	map["JW002"] = Employee("Jane", "Williams", 80000);
+	map["TJ001"] = Employee("Tom", "Jones", 60000);
+
+	Employee sasha( "Sasha", "Hind", 50000 );
+	map["SH001"] = sasha;
+	sasha.setSalary( 40000 );
+
+	EmployeeMap::Iterator it;
+	for ( it = map.begin(); it != map.end(); ++it ) {
+	    printf( "%s: %s, %s earns %d\n",
+		    it.key().latin1(),
+		    it.data().surname().latin1(),
+		    it.data().forename().latin1(),
+		    it.data().salary() );
+	}
+	return 0;
+    }
+    \endcode
+
+    Program output:
+    \code
+    JD001: Doe, John earns 50000
+    JW002: Williams, Jane earns 80000
+    SH001: Hind, Sasha earns 50000
+    TJ001: Jones, Tom earns 60000
+    \endcode
+
+    The latest changes to Sasha's salary did not affect the value in
+    the list because the map created a copy of Sasha's entry. In
+    addition, notice that the items are sorted alphabetically (by key)
+    when iterating over the map.
+
+    There are several ways to find items in a map. The begin() and
+    end() functions return iterators to the beginning and end of the
+    map. The advantage of using an iterator is that you can move
+    forward or backward by incrementing/decrementing the iterator.
+    The iterator returned by end() points to the element which is one
+    past the last element in the container. The past-the-end iterator
+    is still associated with the map it belongs to, however it is \e
+    not dereferenceable; operator*() will not return a well-defined
+    value. If the map is empty, the iterator returned by begin() will
+    equal the iterator returned by end().
+
+    Another way to find an element in the map is by using the find()
+    function. This returns an iterator pointing to the desired item or
+    to the end() iterator if no such element exists.
+
+    Another approach uses the operator[]. But be warned: if the map
+    does not contain an entry for the element you are looking for,
+    operator[] inserts a default value. If you do not know that the
+    element you are searching for is really in the list, you should
+    not use operator[]. The following example illustrates this:
+
+    \code
+	QMap<QString,QString> map;
+	map["Clinton"] = "Bill";
+	str << map["Clinton"] << map["Bush"] << endl;
+    \endcode
+
+    The code fragment will print out "Clinton", "". Since the value
+    associated with the "Bush" key did not exist, the map inserted a
+    default value (in this case, an empty string). If you are not
+    sure whether a certain element is in the map, you should use
+    find() and iterators instead.
+
+    If you just want to know whether a certain key is contained in the
+    map, use the contains() function. In addition, count() tells you
+    how many keys are in the map.
+
+    It is safe to have multiple iterators at the same time. If some
+    member of the map is removed, only iterators pointing to the
+    removed member become invalid; inserting in the map does not
+    invalidate any iterators.
+
+    Since QMap is value-based, there is no need to be concerned about
+    deleting items in the map. The map holds its own copies and will
+    free them if the corresponding member or the map itself is
+    deleted.
+
+    QMap is implicitly shared. This means you can just make copies of
+    the map in time O(1). If multiple QMap instances share the same
+    data and one is modifying the map's data, this modifying instance
+    makes a copy and modifies its private copy: so it does not affect
+    other instances. If a QMap is being used in a multi-threaded
+    program, you must protect all access to the map. See \l QMutex.
+
+    There are a couple of ways of inserting new items into the map.
+    One uses the insert() method; the other uses operator[]:
+    \code
+    QMap<QString, QString> map;
+    map["Clinton"] = "Bill";
+    map.insert( "Bush", "George" );
+    \endcode
+
+    Items can also be removed from the map in several ways. One way is
+    to pass an iterator to remove(). Another way is to pass a key
+    value to remove(), which will delete the entry with the requested
+    key. In addition you can clear the entire map using the clear()
+    method.
+
+    \sa QMapIterator
+*/
+
+
+/*! \enum  QMap::key_type
+	The map's key type. */
+/*! \enum  QMap::mapped_type
+	The map's data type. */
+/*! \enum  QMap::value_type
+	Corresponds to QPair\<key_type, mapped_type\>. */
+/*! \enum  QMap::ValueType
+	Corresponds to QPair\<key_type, mapped_type\>, Qt style.*/
+/*! \enum  QMap::pointer
+	Pointer to value_type.*/
+/*! \enum  QMap::const_pointer
+	Const pointer to value_type.*/
+/*! \enum  QMap::reference
+	Reference to value_type.*/
+/*! \enum  QMap::const_reference
+	Const reference to value_type.*/
+/*! \enum  QMap::size_type
+	An unsigned integral type, used to represent various sizes. */
+/*! \enum  QMap::iterator
+	The map's iterator type.*/
+/*! \enum QMap::Iterator
+	The map's iterator type, Qt style. */
+/*! \enum  QMap::const_iterator
+	The map's const iterator type.*/
+/*! \enum  QMap::ConstIterator
+	The map's const iterator type, Qt style.*/
+/*! \enum QMap::difference_type
+    \internal */
+/*! \enum QMap::Priv
+    \internal */
+
+/*!
+    \fn QMap::QMap()
+
+    Constructs an empty map.
+*/
+
+/*!
+    \fn QMap::QMap( const QMap<Key,T>& m )
+
+    Constructs a copy of \a m.
+
+    This operation costs O(1) time because QMap is implicitly shared.
+    This makes returning a QMap from a function very fast. If a shared
+    instance is modified, it will be copied (copy-on-write), and this
+    takes O(n) time.
+*/
+
+/*!
+    \fn QMap::QMap( const std::map<Key,T>& m )
+
+    Constructs a copy of \a m.
+*/
+
+/*!
+    \fn QMap<Key,T>& QMap::operator= ( const std::map<Key,T>& m )
+
+    \overload
+
+    Assigns \a m to this map and returns a reference to this map.
+
+    All iterators of the current map become invalidated by this
+    operation.
+*/
+
+/*!
+    \fn QMap::~QMap()
+
+    Destroys the map. References to the values in the map and all
+    iterators of this map become invalidated. Since QMap is highly
+    tuned for performance you won't see warnings if you use invalid
+    iterators, because it is not possible for an iterator to check
+    whether it is valid or not.
+*/
+
+/*!
+    \fn QMap<Key, T>& QMap::operator= (const QMap<Key, T>& m)
+
+    Assigns \a m to this map and returns a reference to this map.
+
+    All iterators of the current map become invalidated by this
+    operation. The cost of such an assignment is O(1), because QMap is
+    implicitly shared.
+*/
+
+/*!
+    \fn T& QMap::operator[] ( const Key& k )
+
+    Returns the value associated with the key \a k. If no such key is
+    present, an empty item is inserted with this key and a reference
+    to the empty item is returned.
+
+    You can use this operator both for reading and writing:
+    \code
+    QMap<QString, QString> map;
+    map["Clinton"] = "Bill";
+    stream << map["Clinton"];
+    \endcode
+*/
+
+/*!
+    \fn void QMap::clear()
+
+    Removes all items from the map.
+
+    \sa remove()
+*/
+
+/*!
+    \fn Iterator QMap::find( const Key& k )
+
+    Returns an iterator pointing to the element with key \a k in the
+    map.
+
+    Returns end() if no key matched.
+
+    \sa QMapIterator
+*/
+
+/*!
+    \fn ConstIterator QMap::find( const Key& k ) const
+
+    \overload
+
+    Returns an iterator pointing to the element with key \a k in the
+    map.
+
+    Returns end() if no key matched.
+
+    \sa QMapConstIterator
+*/
+
+/*!
+    \fn Iterator QMap::begin()
+
+    Returns an iterator pointing to the first element in the map. This
+    iterator equals end() if the map is empty.
+
+    The items in the map are traversed in the order defined by
+    operator\<(Key, Key).
+
+    \sa end() QMapIterator
+*/
+
+/*!
+    \fn ConstIterator QMap::begin() const
+
+    \overload
+
+    \sa end() QMapConstIterator
+*/
+
+/*!
+    \fn ConstIterator QMap::constBegin() const
+
+    Returns an iterator pointing to the first element in the map. This
+    iterator equals end() if the map is empty.
+
+    The items in the map are traversed in the order defined by
+    operator\<(Key, Key).
+
+    \sa constEnd() QMapConstIterator
+*/
+
+/*!
+    \fn Iterator QMap::end()
+
+    The iterator returned by end() points to the element which is one
+    past the last element in the container. The past-the-end iterator
+    is still associated with the map it belongs to, but it is \e not
+    dereferenceable; operator*() will not return a well-defined value.
+
+    This iterator equals begin() if the map is empty.
+
+    \sa begin() QMapIterator
+*/
+
+/*!
+    \fn ConstIterator QMap::end() const
+
+    \overload
+*/
+
+/*!
+    \fn ConstIterator QMap::constEnd() const
+
+    The iterator returned by end() points to the element which is one
+    past the last element in the container. The past-the-end iterator
+    is still associated with the map it belongs to, but it is \e not
+    dereferenceable; operator*() will not return a well-defined value.
+
+    This iterator equals constBegin() if the map is empty.
+
+    \sa constBegin() QMapConstIterator
+*/
+
+/*!
+    \fn void QMap::detach()
+
+    If the map does not share its data with another QMap instance,
+    nothing happens; otherwise the function creates a new copy of this
+    map and detaches from the shared one. This function is called
+    whenever the map is modified. The implicit sharing mechanism is
+    implemented this way.
+*/
+
+
+/*!
+    \fn QDataStream& operator>>( QDataStream& s, QMap<Key,T>& m )
+
+    \relates QMap
+
+    Reads the map \a m from the stream \a s. The types \e Key and \e T
+    must implement the streaming operator as well.
+*/
+
+/*!
+    \fn QDataStream& operator<<( QDataStream& s, const QMap<Key,T>& m )
+
+    \relates QMap
+
+    Writes the map \a m to the stream \a s. The types \e Key and \e T
+    must implement the streaming operator as well.
+*/
+
+/*!
+    \fn size_type QMap::size() const
+
+    Returns the number of items in the map.
+
+    This function is provided for STL compatibility. It is equivalent
+    to count().
+
+    \sa empty()
+*/
+
+/*!
+    \fn bool QMap::empty() const
+
+    Returns TRUE if the map contains no items; otherwise returns
+    FALSE.
+
+    This function is provided for STL compatibility. It is equivalent
+    to isEmpty().
+
+    \sa size()
+*/
+
+/*!
+    \fn QPair<iterator,bool> QMap::insert( const value_type& x )
+
+    \overload
+
+    Inserts the (key, value) pair \a x into the map. \a x is a QPair
+    whose \c first element is a key to be inserted and whose \c second
+    element is the associated value to be inserted. Returns a pair
+    whose \c first element is an iterator pointing to the inserted
+    item and whose \c second element is a bool indicating TRUE if \a x
+    was inserted and FALSE if it was not inserted, e.g. because it was
+    already present.
+
+    \sa replace()
+*/
+
+/*!
+    \fn void QMap::erase( iterator it )
+
+    Removes the item associated with the iterator \a it from the map.
+
+    This function is provided for STL compatibility. It is equivalent
+    to remove().
+
+    \sa clear()
+*/
+
+/*!
+    \fn void QMap::erase( const key_type& k )
+
+    \overload
+
+    Removes the item with the key \a k from the map.
+*/
+
+/*!
+    \fn size_type QMap::count( const key_type& k ) const
+
+    Returns the number of items whose key is \a k. Since QMap does not
+    allow duplicate keys, the return value is always 0 or 1.
+
+    This function is provided for STL compatibility.
+*/
+
+/*!
+    \fn Iterator QMap::replace( const Key& k, const T& v )
+
+    Replaces the value of the element with key \a k, with the value \a
+    v.
+
+    \sa insert() remove()
+*/
+
+/*!
+    \fn const T& QMap::operator[] ( const Key& k ) const
+
+    \overload
+
+    \warning This function differs from the non-const version of the
+    same function. It will \e not insert an empty value if the key \a
+    k does not exist. This may lead to logic errors in your program.
+    You should check if the element exists before calling this
+    function.
+
+    Returns the value associated with the key \a k. If no such key is
+    present, a reference to an empty item is returned.
+*/
+
+/*!
+    \fn uint QMap::count() const
+
+    \overload
+
+    Returns the number of items in the map.
+
+    \sa isEmpty()
+*/
+
+/*!
+    \fn bool QMap::isEmpty() const
+
+    Returns TRUE if the map contains no items; otherwise returns
+    FALSE.
+
+    \sa count()
+*/
+
+/*!
+    \fn Iterator QMap::insert( const Key& key, const T& value, bool overwrite )
+
+    Inserts a new item with the key, \a key, and a value of \a value.
+    If there is already an item whose key is \a key, that item's value
+    is replaced with \a value, unless \a overwrite is FALSE (it is
+    TRUE by default). In this case an iterator to this item is
+    returned, else an iterator to the new item is returned.
+
+*/
+
+/*!
+    \fn void QMap::remove( iterator it )
+
+    Removes the item associated with the iterator \a it from the map.
+
+    \sa clear()
+*/
+
+/*!
+    \fn void QMap::remove( const Key& k )
+
+    \overload
+
+    Removes the item with the key \a k from the map.
+*/
+
+/*!
+    \fn bool QMap::contains( const Key& k ) const
+
+    Returns TRUE if the map contains an item with key \a k; otherwise
+    returns FALSE.
+*/
+
+
+/*****************************************************************************
+  QMapIterator documentation
+ *****************************************************************************/
+
+/*!
+    \class QMapIterator qmap.h
+    \brief The QMapIterator class provides an iterator for QMap.
+
+    \ingroup qtl
+    \ingroup tools
+
+    You cannot create an iterator by yourself. Instead, you must ask a
+    map to give you one. An iterator is as big as a pointer; on 32-bit
+    machines that means 4 bytes, on 64-bit machines, 8 bytes. That
+    makes copying iterators very fast. Iterators behave in a similar
+    way to pointers, and they are almost as fast as pointers. See the
+    \link qmap.html#qmap-eg QMap example\endlink.
+
+    QMap is highly optimized for performance and memory usage, but the
+    trade-off is that you must be more careful. The only way to
+    traverse a map is to use iterators. QMap does not know about its
+    iterators, and the iterators don't even know to which map they
+    belong. That makes things fast but a bit dangerous because it is
+    up to you to make sure that the iterators you are using are still
+    valid. QDictIterator will be able to give warnings, whereas
+    QMapIterator may end up in an undefined state.
+
+    For every Iterator there is also a ConstIterator. You must use the
+    ConstIterator to access a QMap in a const environment or if the
+    reference or pointer to the map is itself const. Its semantics are
+    the same, but it only returns const references to the item it
+    points to.
+
+    \sa QMap QMapConstIterator
+*/
+
+/*! \enum  QMapIterator::iterator_category
+	The type of iterator category, \c std::bidirectional_iterator_tag. */
+/*! \enum  QMapIterator::value_type
+	The type of value. */
+/*! \enum  QMapIterator::pointer
+	Pointer to value_type. */
+/*! \enum  QMapIterator::reference
+	Reference to value_type. */
+/*! \enum QMapIterator::difference_type
+    \internal */
+/*! \enum QMapIterator::NodePtr
+    \internal */
+
+/*!
+    \fn QMapIterator::QMapIterator()
+
+    Creates an uninitialized iterator.
+*/
+
+/*!
+    \fn QMapIterator::QMapIterator (QMapNode<K, T> * p)
+
+    Constructs an iterator starting at node \a p.
+*/
+
+/*!
+    \fn QMapIterator::QMapIterator( const QMapIterator<K,T>& it )
+
+    Constructs a copy of the iterator, \a it.
+*/
+
+/*!
+    \fn QMapIterator<K,T>& QMapIterator::operator++()
+
+    Prefix ++ makes the succeeding item current and returns an
+    iterator pointing to the new current item. The iterator cannot
+    check whether it reached the end of the map. Incrementing the
+    iterator returned by end() causes undefined results.
+*/
+
+/*!
+    \fn QMapIterator<K,T> QMapIterator::operator++(int)
+
+    \overload
+
+    Postfix ++ makes the succeeding item current and returns an
+    iterator pointing to the new current item. The iterator cannot
+    check whether it reached the end of the map. Incrementing the
+    iterator returned by end() causes undefined results.
+*/
+
+/*!
+    \fn QMapIterator<K,T>& QMapIterator::operator--()
+
+    Prefix -- makes the previous item current and returns an iterator
+    pointing to the new current item. The iterator cannot check
+    whether it reached the beginning of the map. Decrementing the
+    iterator returned by begin() causes undefined results.
+*/
+
+/*!
+    \fn QMapIterator<K,T> QMapIterator::operator--(int)
+
+    \overload
+
+    Postfix -- makes the previous item current and returns an iterator
+    pointing to the new current item. The iterator cannot check
+    whether it reached the beginning of the map. Decrementing the
+    iterator returned by begin() causes undefined results.
+*/
+
+/*!
+    \fn T& QMapIterator::operator*()
+
+    Dereference operator. Returns a reference to the current item's
+    data. The same as data().
+*/
+
+/*!
+    \fn const T& QMapIterator::operator*() const
+
+    \overload
+
+    Dereference operator. Returns a const reference to the current
+    item's data. The same as data().
+*/
+
+/*!
+    \fn bool QMapIterator::operator==( const QMapIterator<K,T>& it ) const
+
+    Compares the iterator to the \a it iterator and returns TRUE if
+    they point to the same item; otherwise returns FALSE.
+*/
+
+/*!
+    \fn bool QMapIterator::operator!=( const QMapIterator<K,T>& it ) const
+
+    Compares the iterator to the \a it iterator and returns FALSE if
+    they point to the same item; otherwise returns TRUE.
+*/
+
+/*!
+    \fn T& QMapIterator::data()
+
+    Returns a reference to the current item's data.
+*/
+
+/*!
+    \fn const T& QMapIterator::data() const
+
+    \overload
+
+    Returns a const reference to the current item's data.
+*/
+
+/*!
+    \fn const K& QMapIterator::key() const
+
+    Returns a const reference to the current item's key.
+*/
+
+/*!
+    \fn QValueList<Key> QMap::keys() const
+
+    Returns a list of all the keys in the map, in order.
+*/
+
+/*!
+    \fn QValueList<T> QMap::values() const
+
+    Returns a list of all the values in the map, in key order.
+*/
+
+/*****************************************************************************
+  QMapConstIterator documentation
+ *****************************************************************************/
+
+/*!
+    \class QMapConstIterator qmap.h
+    \brief The QMapConstIterator class provides an iterator for QMap.
+
+    \ingroup qtl
+    \ingroup tools
+
+    In contrast to QMapIterator, this class is used to iterate over a
+    const map. It does not allow you to modify the values of the map
+    because this would break the const semantics.
+
+    For more information on QMap iterators, see \l{QMapIterator} and
+    the \link qmap.html#qmap-eg QMap example\endlink.
+
+    \sa QMap QMapIterator
+*/
+
+/*! \enum  QMapConstIterator::iterator_category
+	The type of iterator category, \c std::bidirectional_iterator_tag. */
+/*! \enum  QMapConstIterator::value_type
+	The type of const value. */
+/*! \enum  QMapConstIterator::pointer
+	Const pointer to value_type. */
+/*! \enum  QMapConstIterator::reference
+	Const reference to value_type. */
+/*! \enum QMapConstIterator::difference_type
+    \internal */
+/*! \enum QMapConstIterator::NodePtr
+    \internal */
+
+
+/*!
+    \fn QMapConstIterator::QMapConstIterator()
+
+    Constructs an uninitialized iterator.
+*/
+
+/*!
+    \fn QMapConstIterator::QMapConstIterator (QMapNode<K, T> * p)
+
+    Constructs an iterator starting at node \a p.
+*/
+
+/*!
+    \fn QMapConstIterator::QMapConstIterator( const QMapConstIterator<K,T>& it )
+
+    Constructs a copy of the iterator, \a it.
+*/
+
+/*!
+    \fn QMapConstIterator::QMapConstIterator( const QMapIterator<K,T>& it )
+
+    Constructs a copy of the iterator, \a it.
+*/
+
+/*!
+    \fn QMapConstIterator<K,T>& QMapConstIterator::operator++()
+
+    Prefix ++ makes the succeeding item current and returns an
+    iterator pointing to the new current item. The iterator cannot
+    check whether it reached the end of the map. Incrementing the
+    iterator returned by end() causes undefined results.
+*/
+
+/*!
+    \fn QMapConstIterator<K,T> QMapConstIterator::operator++(int)
+
+    \overload
+
+    Postfix ++ makes the succeeding item current and returns an
+    iterator pointing to the new current item. The iterator cannot
+    check whether it reached the end of the map. Incrementing the
+    iterator returned by end() causes undefined results.
+*/
+
+/*!
+    \fn QMapConstIterator<K,T>& QMapConstIterator::operator--()
+
+    Prefix -- makes the previous item current and returns an iterator
+    pointing to the new current item. The iterator cannot check
+    whether it reached the beginning of the map. Decrementing the
+    iterator returned by begin() causes undefined results.
+*/
+
+/*!
+    \fn QMapConstIterator<K,T> QMapConstIterator::operator--(int)
+
+    \overload
+
+    Postfix -- makes the previous item current and returns an iterator
+    pointing to the new current item. The iterator cannot check
+    whether it reached the beginning of the map. Decrementing the
+    iterator returned by begin() causes undefined results.
+*/
+
+/*!
+    \fn const T& QMapConstIterator::operator*() const
+
+    Dereference operator. Returns a const reference to the current
+    item's data. The same as data().
+*/
+
+/*!
+    \fn bool QMapConstIterator::operator==( const QMapConstIterator<K,T>& it ) const
+
+    Compares the iterator to the \a it iterator and returns TRUE if
+    they point to the same item; otherwise returns FALSE.
+*/
+
+/*!
+    \fn bool QMapConstIterator::operator!=( const QMapConstIterator<K,T>& it ) const
+
+    Compares the iterator to the \a it iterator and returns FALSE if
+    they point to the same item; otherwise returns TRUE.
+*/
+
+/*!
+    \fn const T& QMapConstIterator::data() const
+
+    Returns a const reference to the current item's data.
+*/
+
+/*!
+    \fn const K& QMapConstIterator::key() const
+
+    Returns a const reference to the current item's key.
+*/