220 33734 <41733595.o4GQ0c89LU@tjmaciei-mobl1> article Path: news.gmane.org!.POSTED!not-for-mail From: Thiago Macieira Newsgroups: gmane.comp.lang.c++.isocpp.proposals Subject: Re: Re: A more advanced switch Date: Wed, 09 Aug 2017 12:38:43 -0700 Lines: 34 Approved: news@gmane.org Message-ID: <41733595.o4GQ0c89LU@tjmaciei-mobl1> References: <574320af-c1ae-4676-883c-ae4e91fcd874@isocpp.org> 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 1502307568 15847 195.159.176.226 (9 Aug 2017 19:39:28 GMT) X-Complaints-To: usenet@blaine.gmane.org NNTP-Posting-Date: Wed, 9 Aug 2017 19:39:28 +0000 (UTC) To: std-proposals@isocpp.org Original-X-From: std-proposals+bncBCB4TK757YBRBWWJVXGAKGQE6OCIAEA@isocpp.org Wed Aug 09 21:39:16 2017 Return-path: Envelope-to: gclcip-std-proposals@m.gmane.org Original-Received: from mail-lf0-f72.google.com ([209.85.215.72]) by blaine.gmane.org with esmtp (Exim 4.84_2) (envelope-from ) id 1dfWoy-0002jb-5p for gclcip-std-proposals@m.gmane.org; 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[78.47.120.188]) by mx.google.com with ESMTP id b20si4104246wrf.100.2017.08.09.12.39.05 for ; Wed, 09 Aug 2017 12:39:05 -0700 (PDT) Received-SPF: pass (google.com: domain of thiago@macieira.org designates 78.47.120.188 as permitted sender) client-ip=78.47.120.188; Original-Received: from tjmaciei-mobl1.localnet (unknown [134.134.139.76]) by gondolin.macieira.info (Postfix) with ESMTPSA id 0BEF511B6BB for ; Wed, 9 Aug 2017 12:38:45 -0700 (PDT) In-Reply-To: X-Original-Sender: thiago@macieira.org X-Original-Authentication-Results: mx.google.com; spf=pass (google.com: domain of thiago@macieira.org designates 78.47.120.188 as permitted sender) smtp.mailfrom=thiago@macieira.org 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:33734 Archived-At: On quarta-feira, 9 de agosto de 2017 10:08:14 PDT Tony V E wrote: > So you have a pointer s, which is just an int, right? > And all the cases are compile/link time constants... > I'm not sure that was valid C, but it worked. Many years ago. > > Tony Something like this? switch ("A") { case "A": return 0; case "B": return 1; default: return 2; } It doesn't compile in C: https://godbolt.org/g/m9Asnk (Clang) & https://godbolt.org/g/Uy1pKW (GCC) Even if it did, what do you think this would return? I'd say it's equally correct to return 0 or 2. -- Thiago Macieira - thiago (AT) macieira.info - thiago (AT) kde.org Software Architect - Intel Open Source Technology Center -- 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/41733595.o4GQ0c89LU%40tjmaciei-mobl1. .