Il 27/03/2017 13:05, Philippe ha scritto: > QPolygon needs not be a QVector > QPolygon can be a QVector > QPolygon can be a QList
... which confirms the fallacy. > > ...but *today*, QPolygon is "implemented as a QVector" > Hence from the OO common dialect, QPolygon is-a QVector This subthread wasn't arguing with that (and you've already got an answer about why "implemented as a QVector" was a bad idea), but with the formal fallacies in the arguments exposed so far (four in four messages, and I'm not even counting the argument from authority when CS/Math were brought to the table without an invitation). Cheers, -- Giuseppe D'Angelo | [email protected] | Senior Software Engineer KDAB (UK) Ltd., a KDAB Group company | Tel: UK +44-1625-809908 KDAB - Qt, C++ and OpenGL Experts
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