What does "of" when used with QOverload do?

[ActivateTheDroids]

Hi all,

I just setup my first QTimer successfully, but I was left with a question when i used this line of code:
connect(timer, &QTimer::timeout, this, QOverload<>::of(&NfcId::getIdFromSerial));

What exactly does the QOverload<>::of section of this do? I'm overloading something but its not very clear from Qt's usage guide, and why is of there?

thanks in advance.

[eyllanesc]

@ActivateTheDroids See the source code: https://github.com/qt/qtbase/blob/5.15.2/src/corelib/global/qglobal.h#L1246

[JKSH]

@ActivateTheDroids said in What does "of" when used with QOverload do?:

why is of there?

Because of limitations in C++11.

If you have C++14 support, then you don't need of: https://doc.qt.io/qt-5/signalsandslots-syntaxes.html#selecting-overloaded-signals-and-slots