220 33567 article Path: news.gmane.org!.POSTED!not-for-mail From: Ville Voutilainen Newsgroups: gmane.comp.lang.c++.isocpp.proposals Subject: Re: Re: Add type alias that mirrors given type Date: Thu, 3 Aug 2017 18:10:09 +0300 Lines: 36 Approved: news@gmane.org Message-ID: References: <20f365ce-2a24-4576-894f-923e7b9cd76e@isocpp.org> <03d0948e-506b-4e0b-b5e0-b255d3698cd5@isocpp.org> <7ba631a5-c4c5-cd5b-8e80-c583420cfca5@gmail.com> Reply-To: std-proposals@isocpp.org NNTP-Posting-Host: blaine.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset="UTF-8" X-Trace: blaine.gmane.org 1501773023 12979 195.159.176.226 (3 Aug 2017 15:10:23 GMT) X-Complaints-To: usenet@blaine.gmane.org NNTP-Posting-Date: Thu, 3 Aug 2017 15:10:23 +0000 (UTC) Cc: Nicol Bolas , antonio@perezexcelsior.com To: "ISO C++ Standard - Future Proposals" Original-X-From: std-proposals+bncBC5JHI7A7ALRBUXZRTGAKGQEMQZ7L4Q@isocpp.org Thu Aug 03 17:10:12 2017 Return-path: Envelope-to: gclcip-std-proposals@m.gmane.org Original-Received: from mail-yw0-f198.google.com ([209.85.161.198]) by blaine.gmane.org with esmtp (Exim 4.84_2) (envelope-from ) id 1ddHlL-0002S3-AW for gclcip-std-proposals@m.gmane.org; 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[2607:f8b0:400c:c08::22c]) by mx.google.com with ESMTPS id f10si18477699uaa.176.2017.08.03.08.10.10 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Thu, 03 Aug 2017 08:10:10 -0700 (PDT) Received-SPF: pass (google.com: domain of ville.voutilainen@gmail.com designates 2607:f8b0:400c:c08::22c as permitted sender) client-ip=2607:f8b0:400c:c08::22c; Original-Received: by mail-ua0-x22c.google.com with SMTP id 80so7458225uas.0 for ; Thu, 03 Aug 2017 08:10:10 -0700 (PDT) X-Received: by 10.176.2.205 with SMTP id 71mr1394726uah.161.1501773009998; Thu, 03 Aug 2017 08:10:09 -0700 (PDT) Original-Received: by 10.103.103.65 with HTTP; Thu, 3 Aug 2017 08:10:09 -0700 (PDT) In-Reply-To: <7ba631a5-c4c5-cd5b-8e80-c583420cfca5@gmail.com> X-Original-Sender: ville.voutilainen@gmail.com X-Original-Authentication-Results: mx.google.com; dkim=pass header.i=@gmail.com header.b=A0nJfThr; spf=pass (google.com: domain of ville.voutilainen@gmail.com designates 2607:f8b0:400c:c08::22c as permitted sender) smtp.mailfrom=ville.voutilainen@gmail.com; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=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:33567 Archived-At: On 3 August 2017 at 17:38, Matthew Woehlke wrote: >>>> template void print(std::typemirror& arr) >>> >>> Um... >>> >>> template >>> void print(T (&arr)[N]) >>> >>> ...? >>> >>> I don't see a motivating use case here... >> >> I think the motivation here is that that syntax looks *terrible* and quite >> a few people have no idea how to type that. > > Yes, it's esoteric, but if this is the *only* motivation for the > feature, IMHO it isn't worth a new library feature. > > (It's actually not *that* weird, either... function pointers aren't much > different...) Users of std::array have no such problems. I would recommend against getting any hopes up for improving raw arrays significantly in this area or any other area, when a far superior facility has been part of the standard for 6 years and ships in every implementation you could hope to adopt a language improvement. -- 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. To view this discussion on the web visit https://groups.google.com/a/isocpp.org/d/msgid/std-proposals/CAFk2RUb3t%2B8HOWGpCtMw%2Bj7LZC-f0WLQ7LMX9Lz6d%3DkZCQB_yQ%40mail.gmail.com. .