https://bugs.kde.org/show_bug.cgi?id=410714
--- Comment #2 from Markus <markus.haberlander...@gmail.com> --- (In reply to Sergio Martins from comment #1) > That QList is not a pointer > > It's doing axes(Qt::Horizontal).first(), not axes(Qt::Horizontal)->first() This is of course correct, sorry for being unclear in my description. I was referring to the contents of the QList - the QList contains pointers to the axes, and it is safe and intended to manipulate these via the returned temporary QList directly. I reported this because it just didn't make sense to me to see a warning in this case, for the following reasons: * The warning is specific to the call to QList::first(), which is likely to get called on small lists. Here it's a case where typically only one item is returned. * If the list contents are pointers, it's not so expensive to have a detaching copy, nor is it so problematic since the pointers in the list are still pointing to valid objects. * The warning is about a "detaching-temporary". This first made me think that "axes(..).first()" points to a temporary and not the real pointee. But this is not the case. * It seems to be the suggested way to use the API of QChart ... -- You are receiving this mail because: You are watching all bug changes.
