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=-1.0 required=5.0 tests=BAYES_00,FORGED_HOTMAIL_RCVD2, FREEMAIL_FROM autolearn=no autolearn_force=no version=3.4.4 X-Google-Thread: 103376,d04d2547435a643e X-Google-NewGroupId: yes X-Google-Attributes: gida07f3367d7,domainid0,public,usenet X-Google-Language: ENGLISH,ASCII-7-bit Received: by 10.68.191.225 with SMTP id hb1mr12291685pbc.5.1339929352416; Sun, 17 Jun 2012 03:35:52 -0700 (PDT) Path: l9ni60720pbj.0!nntp.google.com!news1.google.com!postnews.google.com!glegroupsg2000goo.googlegroups.com!not-for-mail From: adacrypt Newsgroups: comp.lang.ada Subject: Re: True or False ? Date: Sun, 17 Jun 2012 03:35:51 -0700 (PDT) Organization: http://groups.google.com Message-ID: <67e507a5-940f-4168-becb-0fd614709bea@googlegroups.com> References: <17029032-5398-4754-8a85-116d595ce59c@googlegroups.com> <87haual1o2.fsf@ludovic-brenta.org> NNTP-Posting-Host: 109.148.165.193 Mime-Version: 1.0 X-Trace: posting.google.com 1339929352 12267 127.0.0.1 (17 Jun 2012 10:35:52 GMT) X-Complaints-To: groups-abuse@google.com NNTP-Posting-Date: Sun, 17 Jun 2012 10:35:52 +0000 (UTC) In-Reply-To: <87haual1o2.fsf@ludovic-brenta.org> Complaints-To: groups-abuse@google.com Injection-Info: glegroupsg2000goo.googlegroups.com; posting-host=109.148.165.193; posting-account=pmkN8QoAAAAtIhXRUfydb0SCISnwaeyg User-Agent: G2/1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable Date: 2012-06-17T03:35:51-07:00 List-Id: On Sunday, June 17, 2012 10:37:17 AM UTC+1, Ludovic Brenta wrote: > Austin writes on comp.lang.ada: > > Do you know if these sort programs are used in real world programming > > today ? >=20 > In our two-million-line mission-critical software we use heap sort and > tree sort but not quick sort. >=20 > --=20 > Ludovic Brenta. Many thanks. I have never heard of heap save - is this to be found in academic books? I'm taking it then that there has not been any huge advance in sorting meth= ods over the past twenty years. Could I pick your brains a bit further. My scheme is ideal for accessing vast programs of millions of lines of sour= ce code like you mentioned - I tag every variable as it is being keyed in a= t the outset (at creation time) and then disable it until it is needed (I c= omment it out ) and if I do need it I simply uncomment it for sorting by a = specially developed sorting method. The tags can be stored up front or eve= n stored in a file in memory for systematic calling by the main program Perhaps you would have a look at this new method later when I go public. Question - would it call it a big asset to improve on sorting methods? - gi= ven that there is so much computer power available to day - poor or even ba= d methods are getting by without notice? Many thanks for your help again. Regards - Austin.