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,MAILING_LIST_MULTI autolearn=unavailable autolearn_force=no version=3.4.4 X-Google-Thread: 103376,9742b7560760142d,start X-Google-Attributes: gid103376,public,usenet X-Google-Language: ENGLISH,ASCII-7-bit Path: g2news1.google.com!news3.google.com!proxad.net!feeder1-2.proxad.net!cleanfeed2-b.proxad.net!nnrp13-1.free.fr!not-for-mail Return-Path: X-Virus-Scanned: amavisd-new at ada-france.org Date: Mon, 09 Jul 2007 10:55:53 +0200 From: "Grein, Christoph (Fa. ESG)" Subject: WG: SI Units - has Ada missed the boat? To: comp.lang.ada@ada-france.org MIME-version: 1.0 X-MIMEOLE: Produced By Microsoft MimeOLE V6.00.3790.1830 Content-type: text/plain; charset=us-ascii Content-transfer-encoding: 7BIT Content-class: urn:content-classes:message Importance: normal Priority: normal Thread-topic: SI Units - has Ada missed the boat? Thread-index: AcfBc3YTU5O6ZpCjQ+61lPO4K0GcSQAfUAPAAAWH6+A= X-MS-Has-Attach: X-MS-TNEF-Correlator: X-OriginalArrivalTime: 09 Jul 2007 08:55:54.0959 (UTC) FILETIME=[F59C1DF0:01C7C206] X-BeenThere: comp.lang.ada@ada-france.org X-Mailman-Version: 2.1.9rc1 Precedence: list List-Id: "Gateway to the comp.lang.ada Usenet newsgroup" List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Newsgroups: comp.lang.ada Message-ID: X-Leafnode-NNTP-Posting-Host: 88.191.17.134 Organization: Guest of ProXad - France NNTP-Posting-Date: 09 Jul 2007 11:00:03 MEST NNTP-Posting-Host: 88.191.14.223 X-Trace: 1183971603 news-2.free.fr 26807 88.191.14.223:40591 X-Complaints-To: abuse@proxad.net Xref: g2news1.google.com comp.lang.ada:16436 Date: 2007-07-09T11:00:03+02:00 > One of my pet hopes for Ada2005 was that it would include some method > of automatically checking systems of units at compilation time or with > minimal run-time checking. Alas it was voted down due to time I have to admit that I was the main perpetrator who killed that proposal. > Is anyone still working on an Ada solution to this? I don't think so, if you mean a method to include in the Ada standard. But there are a lot of such methods distributed in some home pages, see Dmitry Kazakov, mine, ... (I guess there are plenty others) I don't know C++ and so I do not know how it deals mit rad, Newton Meters and Joule in Work [Joule] = Torque [Newton*Meter] * Angle [rad] Or sin x = x + x**3/3! + ... where x is in rad, sin x has dimension 1 (not rad). Or Bq = 1/s, Hz = 1/s, but Bq /= Hz. Eurocopter Deutschland GmbH Sitz der Gesellschaft/Registered Office: Donauwoerth Registergericht/Registration Court: Amtsgericht Augsburg HRB 16508 Vorsitzender des Aufsichtsrates/Chairman of the Supervisory Board: Dr. Lutz Bertling Geschaeftsfuehrung/Board of Management: Dr. Wolfgang Schoder, Vorsitzender/CEO; Friedrich-Wilhelm Hormel; Ralf Barnscheidt CONFIDENTIALITY NOTICE This communication and the information it contains is intended for the addressee(s) named above and for no other persons or organizations. It is confidential and may be legally privileged and protected by law. The unauthorized use, copying or disclosure of this communication or any part of it is prohibited and may be unlawful. If you have received this communication in error, kindly notify us by return e-mail and discard and/or delete the communication. Thank you very much. It is possible for e-mails to be intercepted or affected by viruses. Whilst we maintain virus checks on our e-mails, we accept no liability for viruses or other material which might be introduced with this message.