220 33527 article Path: news.gmane.org!.POSTED!not-for-mail From: Bo Persson Newsgroups: gmane.comp.lang.c++.isocpp.proposals Subject: Re: A more advanced switch Date: Wed, 2 Aug 2017 11:20:39 +0200 Lines: 37 Approved: news@gmane.org Message-ID: References: <9d888362-46f2-4317-b4ea-4376159d8ef1@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"; format=flowed X-Trace: blaine.gmane.org 1501665659 9554 195.159.176.226 (2 Aug 2017 09:20:59 GMT) X-Complaints-To: usenet@blaine.gmane.org NNTP-Posting-Date: Wed, 2 Aug 2017 09:20:59 +0000 (UTC) User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:52.0) Gecko/20100101 Thunderbird/52.2.1 To: std-proposals@isocpp.org Original-X-From: std-proposals+bncBCZ6RLW3UIKBB5NSQ3GAKGQEZEYL4AI@isocpp.org Wed Aug 02 11:20:55 2017 Return-path: Envelope-to: gclcip-std-proposals@m.gmane.org Original-Received: from mail-lf0-f71.google.com ([209.85.215.71]) by blaine.gmane.org with esmtp (Exim 4.84_2) (envelope-from ) id 1dcppk-0001rp-1y for gclcip-std-proposals@m.gmane.org; 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Original-Received: from list by blaine.gmane.org with local (Exim 4.84_2) (envelope-from ) id 1dcppY-0001S1-0y for std-proposals@isocpp.org; Wed, 02 Aug 2017 11:20:40 +0200 X-Injected-Via-Gmane: http://gmane.org/ Original-Lines: 30 Original-X-Complaints-To: usenet@blaine.gmane.org In-Reply-To: <9d888362-46f2-4317-b4ea-4376159d8ef1@isocpp.org> Content-Language: sv X-Original-Sender: gclcip-std-proposals@m.gmane.org X-Original-Authentication-Results: mx.google.com; spf=neutral (google.com: 195.159.176.226 is neither permitted nor denied by best guess record for domain of gclcip-std-proposals@m.gmane.org) smtp.mailfrom=gclcip-std-proposals@m.gmane.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:33527 Archived-At: On 2017-08-01 23:53, Vishal Oza wrote: > I like the idea of adding new of adding to the switch statement but I think lets take it futher > switch (v) > { > case v= [1,5]: //incusive 1 to 5 1 <= v <= 5 > Dosomething(); > break; > case v = (5, 10): //exclusive range 5 < v < 10 > doSomethingelse1(); > break; > case v = (10, 50 ]: // 10 < v <= 50 > doSomethingElse2(); > break; > case v = (50,...) // 50 < v > doSomethingElse3(); > break; > case v = 50: > doSomethingElse4(); > break; > } > Valid for only if v is numeric also add multi variable values and strings > If you have large ranges, the compiler might translate that similar to an if-statement anyway. Especially the (50,...) cannot easily be used in a jump table. Bo Persson -- 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/ols5h1%24450%241%40blaine.gmane.org. .