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=-1.9 required=5.0 tests=BAYES_00 autolearn=ham autolearn_force=no version=3.4.4 X-Google-Thread: a07f3367d7,73cb216d191f0fef X-Google-Attributes: gida07f3367d7,public,usenet X-Google-NewGroupId: yes X-Google-Language: ENGLISH,ASCII-7-bit X-Received: by 10.180.10.230 with SMTP id l6mr1281676wib.3.1363398964208; Fri, 15 Mar 2013 18:56:04 -0700 (PDT) Path: g1ni68399wig.0!nntp.google.com!feeder1.cambriumusenet.nl!82.197.223.108.MISMATCH!feeder2.cambriumusenet.nl!feed.tweaknews.nl!85.12.40.130.MISMATCH!xlned.com!feeder1.xlned.com!news.astraweb.com!border2.a.newsrouter.astraweb.com!newsfeed10.multikabel.net!multikabel.net!newsfeed20.multikabel.net!news.mi.ras.ru!goblin1!goblin2!goblin.stu.neva.ru!aioe.org!eternal-september.org!feeder.eternal-september.org!mx05.eternal-september.org!.POSTED!not-for-mail From: Simon Wright Newsgroups: comp.lang.ada Subject: Re: Is this expected behavior or not Date: Wed, 13 Mar 2013 17:45:56 +0000 Organization: A noiseless patient Spider Message-ID: References: <8klywqh2pf$.1f949flc1xeia.dlg@40tude.net> <513f6e2f$0$6572$9b4e6d93@newsspool3.arcor-online.net> <513faaf7$0$6626$9b4e6d93@newsspool2.arcor-online.net> <51408e81$0$6577$9b4e6d93@newsspool3.arcor-online.net> Mime-Version: 1.0 Injection-Info: mx05.eternal-september.org; posting-host="72a7bb6120f61bc7749e29c9c2e535af"; logging-data="3376"; mail-complaints-to="abuse@eternal-september.org"; posting-account="U2FsdGVkX1/4t4VcVlq/FULtoib3lICCpjTfI4/n+pc=" User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/24.2 (darwin) Cancel-Lock: sha1:uvBb2C/jgaEr7HX/hLFVtOuy72w= sha1:NzvsVl2Ul3iGxlN4uVndtvJlygU= Content-Type: text/plain Date: 2013-03-13T17:45:56+00:00 List-Id: Shark8 writes: > On Wednesday, March 13, 2013 8:34:41 AM UTC-6, Georg Bauhaus wrote: >> >> External observations inspired by whichever type theory do >> not apply when judging things from the Ada perspective. >> I'd find observations interesting only when someone is pondering >> language design, not when explaining properties of an existing >> language. Randy mentioned a time machine... > > I don't know, I think that if I could alter the the past (Ada 83) for > some minor alterations it would be to include null-exclusion on access > types... seems like that would have been far more useful in-practice > than mucking about with 'Pred/'Succ or 'First/'Last. -- child packages > would have been nice from the inception, but I don't think the > compiler-writers would have tolerated the added complexity there given > that as it was Ada 83 was pushing the bleeding-edge bounds of compiler > technology. I don't remember ever using 'Pred/'Succ, but I'd sorely miss 'First/'Last.