inline QDataStream &operator<<(QDataStream &out, const SignedId &signedId) { out << signedId.toInt(); return out; }
inline QDataStream &operator>>(QDataStream &in, SignedId &signedId) { in >> signedId.id; return in; }
inline QDataStream &operator<<(QDataStream &out, const SignedId &signedId) { out << signedId.toInt(); return out; }
inline QDataStream &operator>>(QDataStream &in, SignedId &signedId) { in >> signedId.id; return in; }