On Thu, May 31, 2007 at 04:01:32PM -0400, Richard Heck wrote:
> Peter Kümmel wrote:
> >Richard Heck wrote:
> >
> >>I tried to do something like this so I didn't have the same code in two
> >>places:
> >>QModelIndex & QCitationDialog::getSelectedIndex(QListView *) {
> >> QModelIndexList const selIdx =
> >> availableLV->selectionModel()->selectedIndexes();
> >> if (selIdx.empty())
> >> return QModelIndex(); //this is an invalid one.
> >> return selIdx.first();
> >>}
> >>But that failed: warning: returns reference to temporary. Any ideas how
> >>to avoid this and still return a reference? Or could I return a smart
> >>
> >returning "const QModelIndex &" should be save. But you could also
> >return may value, copying QModelIndex isn't that expensive. The Qt
> >code return often by value, QModelIndex was designed for this.
> >
> Unfortunately, I can't return const. I'll try returning by value.
A const ref would have the same problem.
Andre'
