-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 QTextStream &operator<<(QTextStream &out, const SignedId &signedId) { out << QString::number(signedId.toInt()); return out; }
-inline QDebug operator<<(QDebug dbg, const SignedId &signedId) { dbg.space() << signedId.toInt(); return dbg; }
-inline uint qHash(const SignedId &id) { return qHash(id.toInt()); }
+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 QTextStream& operator<<(QTextStream& out, const SignedId& signedId)
+{
+ out << QString::number(signedId.toInt());
+ return out;
+}
+inline QDebug operator<<(QDebug dbg, const SignedId& signedId)
+{
+ dbg.space() << signedId.toInt();
+ return dbg;
+}
+inline uint qHash(const SignedId& id)
+{
+ return qHash(id.toInt());
+}
+
+class SignedId64
+{
+protected:
+ qint64 id;
+
+public:
+ inline SignedId64(qint64 _id = 0) { id = _id; }
+ inline qint64 toQint64() const { return id; }
+ inline bool isValid() const { return id > 0; }
+
+ inline bool operator==(const SignedId64& other) const { return id == other.id; }
+ inline bool operator!=(const SignedId64& other) const { return id != other.id; }
+ inline bool operator<(const SignedId64& other) const { return id < other.id; }
+ inline bool operator<=(const SignedId64& other) const { return id <= other.id; }
+ inline bool operator>(const SignedId64& other) const { return id > other.id; }
+ inline bool operator>=(const SignedId64& other) const { return id >= other.id; }
+ inline bool operator==(qint64 i) const { return id == i; }
+ inline bool operator!=(qint64 i) const { return id != i; }
+ inline bool operator<(qint64 i) const { return id < i; }
+ inline bool operator>(qint64 i) const { return id > i; }
+ inline bool operator<=(qint64 i) const { return id <= i; }
+
+ inline SignedId64 operator++(int)
+ {
+ id++;
+ return *this;
+ }
+ // inline operator int() const { return toQint64(); } // no automatic conversion!
+
+ friend QDataStream& operator>>(QDataStream& in, SignedId64& signedId);
+};