operator<< has too many parameters

[Volebab]

I'm trying to override the operator << in order to implement a kind of to string using QDebug and for other usage cases, the problem is that I'm getting an error:

QDataStream& operator<<(QDataStream &stream, const Namer &namer)
{
    return stream << "hi";
}

Namer namer;
qDebug() << namer;

binary 'operator <<' has too many parameters
binary '<<' : no operator found which takes a left-hand operand of type 'QDebug' (or there is no acceptable conversion) ...

[SGaist]

Hi,

If you would like to send your class through QDebug you need to implement the stream operator for QDebug i.e.:

QDebug operator <<(QDebug dbg, const Name& namer)
{
dbg << namer.myNiceMethod();
return dbg;
}

[Volebab]

@SGaist It's not only for QDebug, but in cases of strings. I thought that QDataStream would do the job.

[SGaist]

If you want to support several streams then you have to implement them separately.

As for strings don't you mean QTextStream ?

[Volebab]

You are right, I checked a few sources and now it's working, thank you.