A small detail question:   (Also) in the standard context new "names" can be introduced into existing classes:   c.Shape::width()   What if the class has a member named Shape? Which has precedence? Or does the double colon / namespace specifier uniquely specify whether a class concept or member was meant?   Especially with generic programming nameclashes could not always be avoided.     -----Ursprüngliche Nachricht----- Von:Михаил Найденов via Std-Proposals <std-proposals_at_[hidden]> Gesendet:So 27.08.2023 15:31 Betreff:[std-proposals] Draft Proposal for elaborate extension points Anlage:ClassConcept.html An:sotrdg sotrdg via Std-Proposals <std-proposals_at_[hidden]>; CC:Михаил Найденов <mihailnajdenov_at_[hidden]>; Hello,  Below is proposal draft for a "interface-like" class which would serve as an extension point.  It is a continuation of the https://lists.isocpp.org/std-proposals/2023/06/6894.php discussion.  Thank You Няма вирусиwww.avast.com -- Std-Proposals mailing list Std-Proposals_at_[hidden] https://lists.isocpp.org/mailman/listinfo.cgi/std-proposals (A