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=-1.2 required=5.0 tests=BAYES_00,FROM_LOCAL_HEX, FROM_STARTS_WITH_NUMS autolearn=no autolearn_force=no version=3.4.4 X-Google-Thread: 103376,de40179562eb508d X-Google-NewGroupId: yes X-Google-Attributes: gida07f3367d7,domainid0,public,usenet X-Google-Language: ENGLISH,ASCII-7-bit Path: g2news2.google.com!news4.google.com!fu-berlin.de!uni-berlin.de!individual.net!not-for-mail From: "Vinzent Hoefler" <0439279208b62c95f1880bf0f8776eeb@t-domaingrabbing.de> Newsgroups: comp.lang.ada Subject: Re: A scapegoat once again :( Date: Sat, 21 May 2011 09:59:36 +0200 Message-ID: References: <9b0df7c4-e934-44ad-b388-19174df51343@r20g2000yqd.googlegroups.com> <4dd6904f$0$32104$a8266bb1@newsreader.readnews.com> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8; format=flowed; delsp=yes Content-Transfer-Encoding: 7bit X-Trace: individual.net Vdq5XvA6CPlvA+mdGyHZQwet1xE32ceWvg0ubbcqoQEbNx6vzo Cancel-Lock: sha1:7WAGugTFRSmktPrzs6WexMzgBIc= User-Agent: Opera Mail/11.11 (Win32) Xref: g2news2.google.com comp.lang.ada:20331 Date: 2011-05-21T09:59:36+02:00 List-Id: Hyman Rosen wrote: > But look at this: > [...] > XD Ada is the standard Ada development cross-compiler for the > four-nation Fighter Aircraft Replacement programme through the > Eurofighter consortia. In the USA, it was selected by Boeing for > their 777 and F-22 applications. Well, that info is a little bit outdated, I can assure you - at least for the European part. > Users of XD Ada can be assured of comprehensive, long-term support > on current or specific versions of the tools. > > How much do you want to bet that the F-22 software still needs to be > developed on this ancient programming environment? If so, it's hardly > any wonder that using it would cause significant delays. I can tell you about "delays" (actually it's more like a pipe-line) in software upgrades in Avionics. The paperwork to be done is enormous. Even if you "hack" in a little code to just change a minor aspect of the software it needs to get tested at various stages, formalized with a lot of design, test, and $whatever documentation and maybe it gets flight-tested at some point in time. But before it actually starts running inside a real customer-delivered aircraft, I'd estimate a time-span of 24 months since the first change in requirements were settled. And that's not likely to change with _any_ programming language. Vinzent. -- A C program is like a fast dance on a newly waxed dance floor by people carrying razors. -- Waldi Ravens