Missing documentation for the QDataStream methods listed below. If they are not meant to be accessible methods, perhaps Qt should make it "private." I stumbled upon them (accidently using them) by accident.

template <typename T>
QDataStream& operator>>(QDataStream& s, QList<T>& l);

template <typename T>
QDataStream& operator<<(QDataStream& s, const QList<T>& l);

template <typename T>
QDataStream& operator>>(QDataStream& s, QLinkedList<T>& l);

template <typename T>
QDataStream& operator<<(QDataStream& s, const QLinkedList<T>& l);

template<typename T>
QDataStream& operator>>(QDataStream& s, QVector<T>& v);
template<typename T>
QDataStream& operator<<(QDataStream& s, const QVector<T>& v);

template <typename T>
QDataStream &operator>>(QDataStream &in, QSet<T> &set);

template <typename T>
QDataStream& operator<<(QDataStream &out, const QSet<T> &set);

template <class Key, class T>
Q_OUTOFLINE_TEMPLATE QDataStream &operator>>(QDataStream &in, QHash<Key, T> &hash);
template <class Key, class T>
Q_OUTOFLINE_TEMPLATE QDataStream &operator<<(QDataStream &out, const QHash<Key, T>& hash);

template <class aKey, class aT>
Q_OUTOFLINE_TEMPLATE QDataStream &operator>>(QDataStream &in, QMap<aKey, aT> &map);

template <class Key, class T>
Q_OUTOFLINE_TEMPLATE QDataStream &operator<<(QDataStream &out, const QMap<Key, T> &map);