From mboxrd@z Thu Jan 1 00:00:00 1970 X-Spam-Checker-Version: SpamAssassin 3.4.4 (2020-01-24) on polar.synack.me X-Spam-Level: X-Spam-Status: No, score=-2.9 required=5.0 tests=BAYES_00,FREEMAIL_FROM, MAILING_LIST_MULTI autolearn=unavailable autolearn_force=no version=3.4.4 X-Google-Thread: 103376,1fa85f3df5841ae1 X-Google-Attributes: gid103376,public X-Google-Language: ENGLISH,ASCII-7-bit Path: g2news1.google.com!news1.google.com!proxad.net!usenet-fr.net!news.enst.fr!melchior!cuivre.fr.eu.org!melchior.frmug.org!not-for-mail From: Marius Amado Alves Newsgroups: comp.lang.ada Subject: Re: Ada.Containers.Vectors - querying multiple elements Date: Wed, 27 Apr 2005 00:21:33 +0100 Organization: Cuivre, Argent, Or Message-ID: References: <426e4c2b$0$7515$9b4e6d93@newsread2.arcor-online.net> <1114530273.185327.319710@z14g2000cwz.googlegroups.com> <1114531544.32583.142.camel@localhost.localdomain> <426E72C3.9070108@on2.com> <426e90ef$0$10506$9b4e6d93@newsread4.arcor-online.net> NNTP-Posting-Host: lovelace.ada-france.org Mime-Version: 1.0 (Apple Message framework v622) Content-Type: text/plain; charset=US-ASCII; format=flowed Content-Transfer-Encoding: 7bit X-Trace: melchior.cuivre.fr.eu.org 1114557719 37787 212.85.156.195 (26 Apr 2005 23:21:59 GMT) X-Complaints-To: usenet@melchior.cuivre.fr.eu.org NNTP-Posting-Date: Tue, 26 Apr 2005 23:21:59 +0000 (UTC) To: comp.lang.ada@ada-france.org Return-Path: In-Reply-To: X-Mailer: Apple Mail (2.622) X-OriginalArrivalTime: 26 Apr 2005 23:21:32.0662 (UTC) FILETIME=[AEC5A960:01C54AB6] X-Virus-Scanned: by amavisd-new-20030616-p10 (Debian) at ada-france.org X-BeenThere: comp.lang.ada@ada-france.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: "Gateway to the comp.lang.ada Usenet newsgroup" List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Xref: g2news1.google.com comp.lang.ada:10741 Date: 2005-04-27T00:21:33+01:00 On 26 Apr 2005, at 22:47, Dr. Adrian Wrigley wrote: > On Tue, 26 Apr 2005 21:05:28 +0200, Georg Bauhaus wrote: > >> Duncan Sands wrote: >> >>> But (IMHO) grabbing a "slice" of a >>> vector is a very normal thing to want to do. Why not support it as >>> efficiently as possible? >> >> I'm curious. Where is slicing a dynamically sized vector >> done frequently? > > recursive algorithms! > (and plenty of other places too.) Yes. I fought for slices in the ARG forum many months ago [1]. I was practically alone. Where were you guys? :-) You could have made the difference. It happened with indefinite elements. Here I pushed harder. It took three waves of discussion, at separate times. The final wave was started by a simple statement of need by someone else. Ada.Containers now have indefinite elements, but not slices. For slices there was only one wave. Now it's too late for Ada 2005. [1] Discussion archived at http://www.ada-auth.org/cgi-bin/cvsweb.cgi/AIs/AI-30302.TXT?rev=1.16