[Development] QOptional

[Poenitz Andre]

Milian Wolff [mail at milianw.de]
> On Thursday 21 August 2014 13:13:15 Иван Комиссаров wrote:
> > Of course, i can:)
> >
> > bool ok;
> > const int value = string.toInt(&ok);
> > if (ok)
> >     qDebug() << "value is" << value;
> >
> > // ====
> > const auto value = string.toInt();
> > if (value)
> >     qDebug() << "value is" << *value;
> 
> This is a source-incompatible change (and the bool* ok = 0 is optional). You
> cannot add such an API in Qt 5. You'd need to chose a different name.
> 
> While I agree that the existing API is not nice, coming up with new names
> won't be much nicer. In Qt 6, I we can just use std::optional and similar. In
> Qt 5, personally, I'd say lets stick with what we have and not try to reinvent
> yet another part of the STL.

Exactly my thinking.

Andre'

PS:
 
> But that's just me.

Doesn't look like it ;-)