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diff --git a/src/corelib/io/qdatastream.h b/src/corelib/io/qdatastream.h
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+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** This file is part of the QtCore module 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 either Technology Preview License Agreement or the
+** Beta Release License Agreement.
+**
+** 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 1.0, included in the file LGPL_EXCEPTION.txt in this
+** package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at qt-sales@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef QDATASTREAM_H
+#define QDATASTREAM_H
+
+#include <QtCore/qiodevice.h>
+#include <QtCore/qglobal.h>
+
+#ifdef Status
+#error qdatastream.h must be included before any header file that defines Status
+#endif
+
+QT_BEGIN_HEADER
+
+QT_BEGIN_NAMESPACE
+
+QT_MODULE(Core)
+
+class QByteArray;
+class QIODevice;
+
+template <typename T> class QList;
+template <typename T> class QLinkedList;
+template <typename T> class QVector;
+template <typename T> class QSet;
+template <class Key, class T> class QHash;
+template <class Key, class T> class QMap;
+
+class QDataStreamPrivate;
+
+#ifndef QT_NO_DATASTREAM
+class Q_CORE_EXPORT QDataStream
+{
+public:
+    enum Version {
+        Qt_1_0 = 1,
+        Qt_2_0 = 2,
+        Qt_2_1 = 3,
+        Qt_3_0 = 4,
+        Qt_3_1 = 5,
+        Qt_3_3 = 6,
+        Qt_4_0 = 7,
+        Qt_4_1 = Qt_4_0,
+        Qt_4_2 = 8,
+        Qt_4_3 = 9,
+        Qt_4_4 = 10,
+        Qt_4_5 = 11
+#if QT_VERSION >= 0x040600
+#error Add the datastream version for this Qt version
+        , Qt_4_6 = Qt_4_5
+#endif
+    };
+
+    enum ByteOrder {
+        BigEndian = QSysInfo::BigEndian,
+        LittleEndian = QSysInfo::LittleEndian
+    };
+
+    enum Status {
+        Ok,
+        ReadPastEnd,
+	ReadCorruptData
+    };
+
+    QDataStream();
+    explicit QDataStream(QIODevice *);
+#ifdef QT3_SUPPORT
+    QDataStream(QByteArray *, int mode);
+#endif
+    QDataStream(QByteArray *, QIODevice::OpenMode flags);
+    QDataStream(const QByteArray &);
+    virtual ~QDataStream();
+
+    QIODevice *device() const;
+    void setDevice(QIODevice *);
+    void unsetDevice();
+
+    bool atEnd() const;
+#ifdef QT3_SUPPORT
+    inline QT3_SUPPORT bool eof() const { return atEnd(); }
+#endif
+
+    Status status() const;
+    void setStatus(Status status);
+    void resetStatus();
+
+    ByteOrder byteOrder() const;
+    void setByteOrder(ByteOrder);
+
+    int version() const;
+    void setVersion(int);
+
+    QDataStream &operator>>(qint8 &i);
+    QDataStream &operator>>(quint8 &i);
+    QDataStream &operator>>(qint16 &i);
+    QDataStream &operator>>(quint16 &i);
+    QDataStream &operator>>(qint32 &i);
+    QDataStream &operator>>(quint32 &i);
+    QDataStream &operator>>(qint64 &i);
+    QDataStream &operator>>(quint64 &i);
+
+    QDataStream &operator>>(bool &i);
+    QDataStream &operator>>(float &f);
+    QDataStream &operator>>(double &f);
+    QDataStream &operator>>(char *&str);
+
+    QDataStream &operator<<(qint8 i);
+    QDataStream &operator<<(quint8 i);
+    QDataStream &operator<<(qint16 i);
+    QDataStream &operator<<(quint16 i);
+    QDataStream &operator<<(qint32 i);
+    QDataStream &operator<<(quint32 i);
+    QDataStream &operator<<(qint64 i);
+    QDataStream &operator<<(quint64 i);
+    QDataStream &operator<<(bool i);
+    QDataStream &operator<<(float f);
+    QDataStream &operator<<(double f);
+    QDataStream &operator<<(const char *str);
+
+    QDataStream &readBytes(char *&, uint &len);
+    int readRawData(char *, int len);
+
+    QDataStream &writeBytes(const char *, uint len);
+    int writeRawData(const char *, int len);
+
+    int skipRawData(int len);
+
+#ifdef QT3_SUPPORT
+    inline QT3_SUPPORT QDataStream &readRawBytes(char *str, uint len)
+        { readRawData(str, static_cast<int>(len)); return *this; }
+    inline QT3_SUPPORT QDataStream &writeRawBytes(const char *str, uint len)
+        { writeRawData(str, static_cast<int>(len)); return *this; }
+    inline QT3_SUPPORT bool isPrintableData() const { return false; }
+    inline QT3_SUPPORT void setPrintableData(bool) {}
+#endif
+
+private:
+    Q_DISABLE_COPY(QDataStream)
+
+    QDataStreamPrivate *d;
+
+    QIODevice *dev;
+    bool owndev;
+    bool noswap;
+    ByteOrder byteorder;
+    int ver;
+    Status q_status;
+};
+
+
+/*****************************************************************************
+  QDataStream inline functions
+ *****************************************************************************/
+
+inline QIODevice *QDataStream::device() const
+{ return dev; }
+
+inline QDataStream::ByteOrder QDataStream::byteOrder() const
+{ return byteorder; }
+
+inline int QDataStream::version() const
+{ return ver; }
+
+inline void QDataStream::setVersion(int v)
+{ ver = v; }
+
+inline QDataStream &QDataStream::operator>>(quint8 &i)
+{ return *this >> reinterpret_cast<qint8&>(i); }
+
+inline QDataStream &QDataStream::operator>>(quint16 &i)
+{ return *this >> reinterpret_cast<qint16&>(i); }
+
+inline QDataStream &QDataStream::operator>>(quint32 &i)
+{ return *this >> reinterpret_cast<qint32&>(i); }
+
+inline QDataStream &QDataStream::operator>>(quint64 &i)
+{ return *this >> reinterpret_cast<qint64&>(i); }
+
+inline QDataStream &QDataStream::operator<<(quint8 i)
+{ return *this << qint8(i); }
+
+inline QDataStream &QDataStream::operator<<(quint16 i)
+{ return *this << qint16(i); }
+
+inline QDataStream &QDataStream::operator<<(quint32 i)
+{ return *this << qint32(i); }
+
+inline QDataStream &QDataStream::operator<<(quint64 i)
+{ return *this << qint64(i); }
+
+template <typename T>
+QDataStream& operator>>(QDataStream& s, QList<T>& l)
+{
+    l.clear();
+    quint32 c;
+    s >> c;
+    for(quint32 i = 0; i < c; ++i)
+    {
+        T t;
+        s >> t;
+        l.append(t);
+        if (s.atEnd())
+            break;
+    }
+    return s;
+}
+
+template <typename T>
+QDataStream& operator<<(QDataStream& s, const QList<T>& l)
+{
+    s << quint32(l.size());
+    for (int i = 0; i < l.size(); ++i)
+        s << l.at(i);
+    return s;
+}
+
+template <typename T>
+QDataStream& operator>>(QDataStream& s, QLinkedList<T>& l)
+{
+    l.clear();
+    quint32 c;
+    s >> c;
+    for(quint32 i = 0; i < c; ++i)
+    {
+        T t;
+        s >> t;
+        l.append(t);
+        if (s.atEnd())
+            break;
+    }
+    return s;
+}
+
+template <typename T>
+QDataStream& operator<<(QDataStream& s, const QLinkedList<T>& l)
+{
+    s << quint32(l.size());
+    typename QLinkedList<T>::ConstIterator it = l.constBegin();
+    for(; it != l.constEnd(); ++it)
+        s << *it;
+    return s;
+}
+
+template<typename T>
+QDataStream& operator>>(QDataStream& s, QVector<T>& v)
+{
+    v.clear();
+    quint32 c;
+    s >> c;
+    v.resize(c);
+    for(quint32 i = 0; i < c; ++i) {
+        T t;
+        s >> t;
+        v[i] = t;
+    }
+    return s;
+}
+
+template<typename T>
+QDataStream& operator<<(QDataStream& s, const QVector<T>& v)
+{
+    s << quint32(v.size());
+    for (typename QVector<T>::const_iterator it = v.begin(); it != v.end(); ++it)
+        s << *it;
+    return s;
+}
+
+template <typename T>
+QDataStream &operator>>(QDataStream &in, QSet<T> &set)
+{
+    set.clear();
+    quint32 c;
+    in >> c;
+    for (quint32 i = 0; i < c; ++i) {
+        T t;
+        in >> t;
+        set << t;
+        if (in.atEnd())
+            break;
+    }
+    return in;
+}
+
+template <typename T>
+QDataStream& operator<<(QDataStream &out, const QSet<T> &set)
+{
+    out << quint32(set.size());
+    typename QSet<T>::const_iterator i = set.constBegin();
+    while (i != set.constEnd()) {
+        out << *i;
+        ++i;
+    }
+    return out;
+}
+
+template <class Key, class T>
+Q_OUTOFLINE_TEMPLATE QDataStream &operator>>(QDataStream &in, QHash<Key, T> &hash)
+{
+    QDataStream::Status oldStatus = in.status();
+    in.resetStatus();
+    hash.clear();
+
+    quint32 n;
+    in >> n;
+
+    for (quint32 i = 0; i < n; ++i) {
+        if (in.status() != QDataStream::Ok)
+            break;
+
+        Key k;
+        T t;
+        in >> k >> t;
+        hash.insertMulti(k, t);
+    }
+
+    if (in.status() != QDataStream::Ok)
+        hash.clear();
+    if (oldStatus != QDataStream::Ok)
+        in.setStatus(oldStatus);
+    return in;
+}
+
+template <class Key, class T>
+Q_OUTOFLINE_TEMPLATE QDataStream &operator<<(QDataStream &out, const QHash<Key, T>& hash)
+{
+    out << quint32(hash.size());
+    typename QHash<Key, T>::ConstIterator it = hash.end();
+    typename QHash<Key, T>::ConstIterator begin = hash.begin();
+    while (it != begin) {
+        --it;
+        out << it.key() << it.value();
+    }
+    return out;
+}
+#ifdef qdoc
+template <class Key, class T>
+Q_OUTOFLINE_TEMPLATE QDataStream &operator>>(QDataStream &in, QMap<Key, T> &map)
+#else
+template <class aKey, class aT>
+Q_OUTOFLINE_TEMPLATE QDataStream &operator>>(QDataStream &in, QMap<aKey, aT> &map)
+#endif
+{
+    QDataStream::Status oldStatus = in.status();
+    in.resetStatus();
+    map.clear();
+
+    quint32 n;
+    in >> n;
+
+    map.detach();
+    map.setInsertInOrder(true);
+    for (quint32 i = 0; i < n; ++i) {
+        if (in.status() != QDataStream::Ok)
+            break;
+
+        aKey key;
+        aT value;
+        in >> key >> value;
+        map.insertMulti(key, value);
+    }
+    map.setInsertInOrder(false);
+    if (in.status() != QDataStream::Ok)
+        map.clear();
+    if (oldStatus != QDataStream::Ok)
+        in.setStatus(oldStatus);
+    return in;
+}
+
+template <class Key, class T>
+Q_OUTOFLINE_TEMPLATE QDataStream &operator<<(QDataStream &out, const QMap<Key, T> &map)
+{
+    out << quint32(map.size());
+    typename QMap<Key, T>::ConstIterator it = map.end();
+    typename QMap<Key, T>::ConstIterator begin = map.begin();
+    while (it != begin) {
+        --it;
+        out << it.key() << it.value();
+    }
+    return out;
+}
+
+#endif // QT_NO_DATASTREAM
+
+QT_END_NAMESPACE
+
+QT_END_HEADER
+
+#endif // QDATASTREAM_H