220 15329 <1c016fbb-7268-4c69-b9ab-510fb78c4125@isocpp.org> article Path: news.gmane.org!not-for-mail From: Andy Prowl Newsgroups: gmane.comp.lang.c++.isocpp.proposals Subject: Re: Re: Isn't it time we had the bool std::[container]::contains() family of methods? Date: Fri, 26 Dec 2014 10:02:07 -0800 (PST) Lines: 64 Approved: news@gmane.org Message-ID: <1c016fbb-7268-4c69-b9ab-510fb78c4125@isocpp.org> References: <0959f2f8-acdd-4786-b6f3-0f05c62dcee6@isocpp.org> <2df86492-548f-42c8-86d6-fe1c8ba3a5a9@isocpp.org> <2f390ec3-b259-4150-9771-cd0d02860348@isocpp.org> <3743ebda-3367-4fc3-922a-f38d98e57889@isocpp.org> <1bccb2dd-4aa4-4f07-8958-b1d6bf092630@isocpp.org> <46cc4da5-98d1-471f-ab31-714ac5502853@isocpp.org> <6ad78bb4-b21b-4978-90be-b99ef6d15414@isocpp.org> Reply-To: std-proposals@isocpp.org NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="----=_Part_4421_2008359295.1419616927581" X-Trace: ger.gmane.org 1419616937 9241 80.91.229.3 (26 Dec 2014 18:02:17 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Fri, 26 Dec 2014 18:02:17 +0000 (UTC) To: std-proposals@isocpp.org Original-X-From: std-proposals+bncBCG63E4DYQKRBIGF62SAKGQE5RH3KMQ@isocpp.org Fri Dec 26 19:02:10 2014 Return-path: Envelope-to: gclcip-std-proposals@m.gmane.org Original-Received: from mail-pa0-f69.google.com ([209.85.220.69]) by plane.gmane.org with esmtp (Exim 4.69) (envelope-from ) id 1Y4ZDF-0006GA-Pq for gclcip-std-proposals@m.gmane.org; Fri, 26 Dec 2014 19:02:09 +0100 Original-Received: by mail-pa0-f69.google.com with SMTP id et14sf81971358pad.0 for ; Fri, 26 Dec 2014 10:02:08 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=date:from:to:message-id:in-reply-to:references:subject:mime-version :content-type:x-original-sender:reply-to:precedence:mailing-list :list-id:list-post:list-help:list-archive:list-subscribe :list-unsubscribe; bh=Ga2AYsSaH5TEgNuVCtOYKW5yaQKmUY78ygkwl689/kM=; b=VrIShS/Esvbd0kbkpZacUNQGW94N6t2+LzLrd2LOS3NidEq0ZMZN3iXi+WVRT6yo/6 FM7L4rLfEm5HvamtnQcXcho+vOh1HrTMEuWrQ7kvSZmA3ZimqjlGLlQRETwk/l/shsbi mYt3KFR6f50dBYHk7HOi4rJwCLPDnKiA8+rrwRFxfGKKd4MCMsw1y0vcETgQg7ELXYRR VSA5V5+sonN1B5cRGiS5I/CjLOpYyt3ZC8ccQ+YJeawemcLaO8gP7hxaWtATZZppKwH0 a+hwHJaA/EkbKrXG4/Nr0r0zs0D2SuHLGUjEfo84MJpda8ELDL39Yc0SOifnzWAxClrc MHsw== 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:in-reply-to:references :subject:mime-version:content-type:x-original-sender:reply-to :precedence:mailing-list:list-id:list-post:list-help:list-archive :list-subscribe:list-unsubscribe; bh=Ga2AYsSaH5TEgNuVCtOYKW5yaQKmUY78ygkwl689/kM=; b=ledn/ud9jupKBKcWhvEaUGMNJm4YJbh6+biCzfnlARfioWRbadQlw1OA9xUtm1tVdi qrSc0kESkv3v9Htjzj+SfB98XIqe6O8w8RcAlLf8ngsx6XT8vT0RiE7bAdBjsMRcAT7O k3udfMcOz0sWFzmGBcGgb8oPCTm2oV/x7h6vWkGdqg1ls3mE6LHHWY+2yPQ3cFxY0WAX idslZPcnkj4qtJR4kAawrTZrtWpA33RHnxVNPB3YYpKKolnVyCFIK69qYAXaG9eXjZTj 0D4Qmi+SSwRls+yhd0IEH/50lmN9jE2/bOw7ACcAy0dTQFQGtr5yKWU8xVRi8UQ60fpD bbCw== X-Gm-Message-State: ALoCoQkuaeCU7ANNtJlG5M2R0I7GhxYmDipjsGxsh2Kf+acEKapWriVPfYkMThY5Q39mxGHSlKpv X-Received: by 10.66.222.135 with SMTP id qm7mr35213837pac.20.1419616928697; Fri, 26 Dec 2014 10:02:08 -0800 (PST) X-BeenThere: std-proposals@isocpp.org Original-Received: by 10.140.93.102 with SMTP id c93ls1479155qge.18.gmail; Fri, 26 Dec 2014 10:02:07 -0800 (PST) X-Received: by 10.140.28.180 with SMTP id 49mr585465qgz.4.1419616927981; Fri, 26 Dec 2014 10:02:07 -0800 (PST) In-Reply-To: X-Original-Sender: andy.prowl@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:15329 Archived-At: ------=_Part_4421_2008359295.1419616927581 Content-Type: multipart/alternative; boundary="----=_Part_4422_990137522.1419616927586" ------=_Part_4422_990137522.1419616927586 Content-Type: text/plain; charset=UTF-8 While I agree with most of what has been written in the last few messages, I feel we are slowly diverging from the purpose of the original post, perhaps unnecessarily enlarging its scope. I think an algorithm like "contains()" for "containers" is such an obvious and elementary operation that it ought to be in the standard library: it is simpler, easier to teach, and easier to understand than the current "!= end()" idiom. IMO a proposal should be written for adding this function, and keeping its scope narrow may increase its chances to get accepted. Kind regards, Andy -- --- 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_4422_990137522.1419616927586 Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: quoted-printable
While I agree with most of what has been written in the la= st few messages, I feel we are slowly diverging from the purpose of the ori= ginal post, perhaps unnecessarily enlarging its scope.

I think an al= gorithm like "contains()" for "containers" is such an obvious and elementar= y operation that it ought to be in the standard library: it is simpler, eas= ier to teach, and easier to understand than the current "!=3D end()" idiom.=

IMO a proposal should be written for adding this function, and keep= ing its scope narrow may increase its chances to get accepted.

= Kind regards,

Andy

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