220 13207 <19267205-7e26-4c12-b9b4-f26ab2f99eb7@isocpp.org> article Path: news.gmane.org!not-for-mail From: gmisocpp@gmail.com Newsgroups: gmane.comp.lang.c++.isocpp.proposals Subject: Tighten rules for virtual override keyword combination Date: Sat, 27 Sep 2014 14:59:51 -0700 (PDT) Lines: 54 Approved: news@gmane.org Message-ID: <19267205-7e26-4c12-b9b4-f26ab2f99eb7@isocpp.org> Reply-To: std-proposals@isocpp.org NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_Part_2177_1670616247.1411855191475" X-Trace: ger.gmane.org 1411855201 16640 80.91.229.3 (27 Sep 2014 22:00:01 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Sat, 27 Sep 2014 22:00:01 +0000 (UTC) To: std-proposals@isocpp.org Original-X-From: std-proposals+bncBCM3TRNUXUDBBWPGTSQQKGQEHFI67HY@isocpp.org Sat Sep 27 23:59:56 2014 Return-path: Envelope-to: gclcip-std-proposals@m.gmane.org Original-Received: from mail-ig0-f200.google.com ([209.85.213.200]) by plane.gmane.org with esmtp (Exim 4.69) (envelope-from ) id 1XY01y-0003cJ-RO for gclcip-std-proposals@m.gmane.org; Sat, 27 Sep 2014 23:59:55 +0200 Original-Received: by mail-ig0-f200.google.com with SMTP id h3sf11855664igd.7 for ; Sat, 27 Sep 2014 14:59:54 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=date:from:to:message-id:subject:mime-version:x-original-sender :reply-to:precedence:mailing-list:list-id:list-post:list-help :list-archive:list-subscribe:list-unsubscribe:content-type; bh=wr52GFi814vzdlrJLA68C1BQlvMJYbIfFrHmnMeoE0k=; b=rlIq26Z3uRbMl3qS8CzZlydKl5abayVSwmEh7NBww83r0eNkewZcDcGH6wl2BLidi5 24YJp9pnLeIRhDd+oRfOqLCHfqtp9O18mtcQzBc1D5XAMyBSoXdR3oZxHIvn0bfR7hiy t5IvjV9AbUJ7oC89A5/eyVdrq9bSpUxdnTtU08kYh1TbMzIOdO0cxApOF0Um1URPtI9p KC7s2HGMWpZtwSes0aZQVoIrAWbAUl0gyvxgmFrzT9y6CMtcYHwS2FX/LQztu3y53Btq iEdHcjolQvU9LMlkD/kPl2cr4RKmsDHc23gqyS7eiaXfjWj7Q5MbJZpAlsxKJVjT49L+ Erkg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:date:from:to:message-id:subject:mime-version :x-original-sender:reply-to:precedence:mailing-list:list-id :list-post:list-help:list-archive:list-subscribe:list-unsubscribe :content-type; bh=wr52GFi814vzdlrJLA68C1BQlvMJYbIfFrHmnMeoE0k=; b=heOtLEeyzl1OTh4QTkzCUJogOCr3AtVzUYSHw/ib70InUvLdaRRwMC/FMsFW+5WJKI Gq8wK8hf4Q01wNGrs5oMa/LYcSV9R2Hu3Hae3811XMxtt/zA8LUlFn5oSHudc3WsxsoV boxvKzdNtGTLk4XKepK1fXBYJcikmm0qNaz4bqduNd/+yhhdOnXjjktBr2UWSD6tFtqb NyrYbRLUkDJNXfkC70HTmn37JWYlOHHZ49lWf0d7Mqu8RWWP7MJDlIh/2pgXhnm7hyi4 xlx187x85WnVFRAWnrHQmoBTdHkiJN7RFTSiL73TvQX051cMmJ9BYwYdtLxLhh0B7GA2 sCLw== X-Gm-Message-State: ALoCoQlku/h75ylIWHVggWO70F7uMcpJ4RpfeilXB8x8U4W2oLL5mx/EWUDvOh6PPi63xqFWfVmw X-Received: by 10.182.143.39 with SMTP id sb7mr25752484obb.47.1411855193937; Sat, 27 Sep 2014 14:59:53 -0700 (PDT) X-BeenThere: std-proposals@isocpp.org Original-Received: by 10.50.43.161 with SMTP id x1ls1361087igl.41.canary; Sat, 27 Sep 2014 14:59:53 -0700 (PDT) X-Received: by 10.50.41.103 with SMTP id e7mr891495igl.8.1411855193319; Sat, 27 Sep 2014 14:59:53 -0700 (PDT) X-Original-Sender: gmisocpp@gmail.com Precedence: list Mailing-list: list std-proposals@isocpp.org; contact std-proposals+owners@isocpp.org List-ID: X-Google-Group-Id: 399137483710 List-Post: , List-Help: , List-Archive: List-Subscribe: , List-Unsubscribe: , Xref: news.gmane.org gmane.comp.lang.c++.isocpp.proposals:13207 Archived-At: ------=_Part_2177_1670616247.1411855191475 Content-Type: text/plain; charset=UTF-8 C++ compilers allow the combination of virtual and override together. AFAIK it serves no purpose to allow that but does causes confusion, e.g.: http://www.reddit.com/r/cpp/comments/2hgp7i/do_you_repeat_the_virtual_keyword_in_derived/ I propose deprecating use of override and virtual together and/or requiring or recommending the compiler warn when both keywords are combined. A warning like 'virtual override combination not recommended. override is sufficient here.' -- --- You received this message because you are subscribed to the Google Groups "ISO C++ Standard - Future Proposals" group. To unsubscribe from this group and stop receiving emails from it, send an email to std-proposals+unsubscribe@isocpp.org. To post to this group, send email to std-proposals@isocpp.org. Visit this group at http://groups.google.com/a/isocpp.org/group/std-proposals/. ------=_Part_2177_1670616247.1411855191475 Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: quoted-printable
C++ compilers allow the combination of virtual a= nd override together. AFAIK it serves no purpose to allow that but doe= s causes confusion, e.g.:


I propose deprecating&n= bsp;use of override and virtual together and/or requiring or recommend= ing the compiler  warn when both keywords are combined.=  A warning like 'virtual override combination not recommended. ov= erride is sufficient here.'

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