> currently QMap::keys() returns a QList<T>. Since some newer APIs already > using QVector, a conversion from QList to QVector is needed which > creates a double allocation when using the easy way (with a clazy > warning and hopefully a comment in the review). > So to avoid this, I have to write some code to put the keys into a > QVector. The problems I've with this solutions are > - everyone needs to write his own function > - it is (maybe) not catched during Qt6 porting, esp. when using auto, > and we do useless conversions > > Is it possible to add a helper function for this somewhere (or is it > already available) or another easier way?
I complained about a lack of a generic iterator class back in the spring of last year[1]. Thiago seems to have one waiting for Qt6, because as a developer, I don't want to to care what kind of iterable you pass to me, I just want to iterate on it. [1] http://lists.qt-project.org/pipermail/development/2017-April/029556.html _______________________________________________ Interest mailing list [email protected] http://lists.qt-project.org/mailman/listinfo/interest
