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=unavailable autolearn_force=no version=3.4.4 Path: eternal-september.org!reader01.eternal-september.org!reader02.eternal-september.org!news.eternal-september.org!mx02.eternal-september.org!.POSTED!not-for-mail From: "J-P. Rosen" Newsgroups: comp.lang.ada Subject: Re: Everything You Know Is Wrong Date: Wed, 2 Mar 2016 17:30:05 +0100 Organization: A noiseless patient Spider Message-ID: References: <87twkrpvcf.fsf@adaheads.sparre-andersen.dk> <9974be39-f94d-4293-819e-bd1c9a1ddd65@googlegroups.com> Mime-Version: 1.0 Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: 8bit Injection-Date: Wed, 2 Mar 2016 16:27:06 -0000 (UTC) Injection-Info: mx02.eternal-september.org; posting-host="45bffd6a911624777cad79aac3181090"; logging-data="29743"; mail-complaints-to="abuse@eternal-september.org"; posting-account="U2FsdGVkX181afOzbYOwr70TfIDzBLHP" User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:38.0) Gecko/20100101 Thunderbird/38.6.0 In-Reply-To: Cancel-Lock: sha1:TIUTCXVvZq2Di0QlmrppZNrLZiw= Xref: news.eternal-september.org comp.lang.ada:29649 Date: 2016-03-02T17:30:05+01:00 List-Id: Le 02/03/2016 16:44, Bob Brown a écrit : >> This was a deliberate decision, to make Ada compatible with various >> floating point models. Many (most? all?) number crunching machines do >> not have IEEE arithmetic, > > Really? Which one(s) are you talking about? I didn't even know there were > any number crunchers aside from the sad ones made from a kid's pool full > of Intel chips stuck together with tape and glue. All the real stuff like > CDC/Cray has been gone for ages. Well, true enough, I don't know for recent machines. Even Silicon Graphics has disappeared (not so long ago), and AFAIK, they were not IEEE. >> and there has been famous papers claiming that Java requiring IEEE >> arithmetic was a huge mistake. > > I would be interested in seeing the references if you have them at hand. > https://www.cs.berkeley.edu/~wkahan/JAVAhurt.pdf -- J-P. Rosen Adalog 2 rue du Docteur Lombard, 92441 Issy-les-Moulineaux CEDEX Tel: +33 1 45 29 21 52, Fax: +33 1 45 29 25 00 http://www.adalog.fr