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diff --git a/doc/src/snippets/code/doc_src_qiterator.cpp b/doc/src/snippets/code/doc_src_qiterator.cpp
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+/****************************************************************************
+**
+** Copyright (C) 2011 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.
+**
+** $QT_BEGIN_LICENSE:BSD$
+** You may use this file under the terms of the BSD license as follows:
+**
+** "Redistribution and use in source and binary forms, with or without
+** modification, are permitted provided that the following conditions are
+** met:
+** * Redistributions of source code must retain the above copyright
+** notice, this list of conditions and the following disclaimer.
+** * Redistributions in binary form must reproduce the above copyright
+** notice, this list of conditions and the following disclaimer in
+** the documentation and/or other materials provided with the
+** distribution.
+** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor
+** the names of its contributors may be used to endorse or promote
+** products derived from this software without specific prior written
+** permission.
+**
+** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+//! [0]
+QList<float> list;
+...
+QListIterator<float> i(list);
+while (i.hasNext())
+ qDebug() << i.next();
+//! [0]
+
+
+//! [1]
+QListIterator<float> i(list);
+i.toBack();
+while (i.hasPrevious())
+ qDebug() << i.previous();
+//! [1]
+
+
+//! [2]
+QLinkedList<float> list;
+...
+QLinkedListIterator<float> i(list);
+while (i.hasNext())
+ qDebug() << i.next();
+//! [2]
+
+
+//! [3]
+QLinkedListIterator<float> i(list);
+i.toBack();
+while (i.hasPrevious())
+ qDebug() << i.previous();
+//! [3]
+
+
+//! [4]
+QVector<float> vector;
+...
+QVectorIterator<float> i(vector);
+while (i.hasNext())
+ qDebug() << i.next();
+//! [4]
+
+
+//! [5]
+QVectorIterator<float> i(vector);
+i.toBack();
+while (i.hasPrevious())
+ qDebug() << i.previous();
+//! [5]
+
+
+//! [6]
+QSet<QString> set;
+...
+QSetIterator<QString> i(set);
+while (i.hasNext())
+ qDebug() << i.next();
+//! [6]
+
+
+//! [7]
+QSetIterator<QString> i(set);
+i.toBack();
+while (i.hasPrevious())
+ qDebug() << i.previous();
+//! [7]
+
+
+//! [8]
+QList<float> list;
+...
+QMutableListIterator<float> i(list);
+while (i.hasNext())
+ qDebug() << i.next();
+//! [8]
+
+
+//! [9]
+QMutableListIterator<float> i(list);
+i.toBack();
+while (i.hasPrevious())
+ qDebug() << i.previous();
+//! [9]
+
+
+//! [10]
+QMutableListIterator<int> i(list);
+while (i.hasNext()) {
+ int val = i.next();
+ if (val < 0) {
+ i.setValue(-val);
+ } else if (val == 0) {
+ i.remove();
+ }
+}
+//! [10]
+
+
+//! [11]
+QLinkedList<float> list;
+...
+QMutableLinkedListIterator<float> i(list);
+while (i.hasNext())
+ qDebug() << i.next();
+//! [11]
+
+
+//! [12]
+QMutableLinkedListIterator<float> i(list);
+i.toBack();
+while (i.hasPrevious())
+ qDebug() << i.previous();
+//! [12]
+
+
+//! [13]
+QMutableLinkedListIterator<int> i(list);
+while (i.hasNext()) {
+ int val = i.next();
+ if (val < 0) {
+ i.setValue(-val);
+ } else if (val == 0) {
+ i.remove();
+ }
+}
+//! [13]
+
+
+//! [14]
+QVector<float> vector;
+...
+QMutableVectorIterator<float> i(vector);
+while (i.hasNext())
+ qDebug() << i.next();
+//! [14]
+
+
+//! [15]
+QMutableVectorIterator<float> i(vector);
+i.toBack();
+while (i.hasPrevious())
+ qDebug() << i.previous();
+//! [15]
+
+
+//! [16]
+QMutableVectorIterator<int> i(vector);
+while (i.hasNext()) {
+ int val = i.next();
+ if (val < 0) {
+ i.setValue(-val);
+ } else if (val == 0) {
+ i.remove();
+ }
+}
+//! [16]
+
+
+//! [17]
+QSet<float> set;
+...
+QMutableSetIterator<float> i(set);
+while (i.hasNext())
+ qDebug() << i.next();
+//! [17]
+
+
+//! [18]
+QMutableSetIterator<float> i(set);
+i.toBack();
+while (i.hasPrevious())
+ qDebug() << i.previous();
+//! [18]
+
+
+//! [19]
+QMutableListIterator<int> i(list);
+while (i.hasNext()) {
+ int val = i.next();
+ if (val < -32768 || val > 32767)
+ i.remove();
+}
+//! [19]
+
+
+//! [20]
+QMutableLinkedListIterator<int> i(list);
+while (i.hasNext()) {
+ int val = i.next();
+ if (val < -32768 || val > 32767)
+ i.remove();
+}
+//! [20]
+
+
+//! [21]
+QMutableVectorIterator<int> i(vector);
+while (i.hasNext()) {
+ int val = i.next();
+ if (val < -32768 || val > 32767)
+ i.remove();
+}
+//! [21]
+
+
+//! [22]
+QMutableSetIterator<int> i(set);
+while (i.hasNext()) {
+ int val = i.next();
+ if (val < -32768 || val > 32767)
+ i.remove();
+}
+//! [22]
+
+
+//! [23]
+QMutableListIterator<double> i(list);
+while (i.hasNext()) {
+ double val = i.next();
+ i.setValue(sqrt(val));
+}
+//! [23]
+
+
+//! [24]
+QMutableLinkedListIterator<double> i(list);
+while (i.hasNext()) {
+ double val = i.next();
+ i.setValue(sqrt(val));
+}
+//! [24]
+
+
+//! [25]
+QMutableVectorIterator<double> i(list);
+while (i.hasNext()) {
+ double val = i.next();
+ i.setValue(sqrt(val));
+}
+//! [25]
+
+
+//! [26]
+QMap<int, QWidget *> map;
+...
+QMapIterator<int, QWidget *> i(map);
+while (i.hasNext()) {
+ i.next();
+ qDebug() << i.key() << ": " << i.value();
+}
+//! [26]
+
+
+//! [27]
+QMapIterator<int, QWidget *> i(map);
+i.toBack();
+while (i.hasPrevious()) {
+ i.previous();
+ qDebug() << i.key() << ": " << i.value();
+}
+//! [27]
+
+
+//! [28]
+QMapIterator<int, QWidget *> i(map);
+while (i.findNext(widget)) {
+ qDebug() << "Found widget " << widget << " under key "
+ << i.key();
+}
+//! [28]
+
+
+//! [29]
+QHash<int, QWidget *> hash;
+...
+QHashIterator<int, QWidget *> i(hash);
+while (i.hasNext()) {
+ i.next();
+ qDebug() << i.key() << ": " << i.value();
+}
+//! [29]
+
+
+//! [30]
+QHashIterator<int, QWidget *> i(hash);
+i.toBack();
+while (i.hasPrevious()) {
+ i.previous();
+ qDebug() << i.key() << ": " << i.value();
+}
+//! [30]
+
+
+//! [31]
+QHashIterator<int, QWidget *> i(hash);
+while (i.findNext(widget)) {
+ qDebug() << "Found widget " << widget << " under key "
+ << i.key();
+}
+//! [31]
+
+
+//! [32]
+QMap<int, QWidget *> map;
+...
+QMutableMapIterator<int, QWidget *> i(map);
+while (i.hasNext()) {
+ i.next();
+ qDebug() << i.key() << ": " << i.value();
+}
+//! [32]
+
+
+//! [33]
+QMutableMapIterator<int, QWidget *> i(map);
+i.toBack();
+while (i.hasPrevious()) {
+ i.previous();
+ qDebug() << i.key() << ": " << i.value();
+}
+//! [33]
+
+
+//! [34]
+QMutableMapIterator<int, QWidget *> i(map);
+while (i.findNext(widget)) {
+ qDebug() << "Found widget " << widget << " under key "
+ << i.key();
+}
+//! [34]
+
+
+//! [35]
+QMutableMapIterator<QString, QString> i(map);
+while (i.hasNext()) {
+ i.next();
+ if (i.key() == i.value())
+ i.remove();
+}
+//! [35]
+
+
+//! [36]
+QHash<int, QWidget *> hash;
+...
+QMutableHashIterator<QString, QWidget *> i(hash);
+while (i.hasNext()) {
+ i.next();
+ qDebug() << i.key() << ": " << i.value();
+}
+//! [36]
+
+
+//! [37]
+QMutableHashIterator<int, QWidget *> i(hash);
+i.toBack();
+while (i.hasPrevious()) {
+ i.previous();
+ qDebug() << i.key() << ": " << i.value();
+}
+//! [37]
+
+
+//! [38]
+QMutableHashIterator<int, QWidget *> i(hash);
+while (i.findNext(widget)) {
+ qDebug() << "Found widget " << widget << " under key "
+ << i.key();
+}
+//! [38]
+
+
+//! [39]
+QMutableHashIterator<QString, QString> i(hash);
+while (i.hasNext()) {
+ i.next();
+ if (i.key() == i.value())
+ i.remove();
+}
+//! [39]