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: 103376,b860b4e8d00468ef X-Google-Attributes: gid103376,public X-Google-Language: ENGLISH,ASCII-7-bit Path: g2news1.google.com!news2.google.com!proxad.net!newsfeed.stueberl.de!newsr1.ipcore.viaginterkom.de!news-peer1!btnet-feed5!btnet!news.btopenworld.com!not-for-mail From: "Martin Dowie" Newsgroups: comp.lang.ada Subject: Re: Ada access vs C/C++ pointers and references Date: Thu, 19 Aug 2004 06:21:45 +0000 (UTC) Organization: BT Openworld Message-ID: References: <87657fso10.fsf@insalien.org> NNTP-Posting-Host: host81-154-190-170.range81-154.btcentralplus.com X-Trace: hercules.btinternet.com 1092896505 2174 81.154.190.170 (19 Aug 2004 06:21:45 GMT) X-Complaints-To: news-complaints@lists.btinternet.com NNTP-Posting-Date: Thu, 19 Aug 2004 06:21:45 +0000 (UTC) X-Newsreader: Microsoft Outlook Express 6.00.2800.1437 X-MSMail-Priority: Normal X-Priority: 3 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1441 Xref: g2news1.google.com comp.lang.ada:2837 Date: 2004-08-19T06:21:45+00:00 List-Id: "Ludovic Brenta" wrote in message news:87657fso10.fsf@insalien.org... > (Keith H Duggar) writes: > > Third, if Ada does not provide arithmetic pointers do you > > know if this has played any part in acceptance of Ada for > > systems programming or efficiency critical applications? > > Ada does provide for pointer arithmetic, but the fact that one can > avoid pointers altogether for most things does help with verification > and certification of safety-critical software. Pointer arithmetic is > usually confined to a few low-level device drivers. > > (I work in avionics) I also work in avionics (have done for 16 years now) and I've _never_ needed pointer arithmatic - there's usually a 'better' Ada way that produces acceptably fast results. But YMMV :-) Cheers -- Martin