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: 103376,7e8cebf09cf80560 X-Google-NewGroupId: yes X-Google-Attributes: gida07f3367d7,domainid0,public,usenet X-Google-Language: ENGLISH,UTF8 Path: g2news1.google.com!news2.google.com!news.glorb.com!news2.glorb.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: How would Ariane 5 have behaved if overflow checking were not turned off? Date: Mon, 14 Mar 2011 19:29:42 +0100 Message-ID: References: Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8; format=flowed; delsp=yes Content-Transfer-Encoding: Quoted-Printable X-Trace: individual.net a9cmPjAmGadN6OZlTHHk/AxhcH5vA/YifsvK/bQ8NYwIxTF5UU Cancel-Lock: sha1:h1GBf3UOP5kYY+JNo1Kax0GXNEc= User-Agent: Opera Mail/11.01 (Win32) Xref: g2news1.google.com comp.lang.ada:18183 Date: 2011-03-14T19:29:42+01:00 List-Id: Elias Salom=C3=A3o Helou Neto wrote: > Since then I have been wondering. If compiler checking where actually > turned on, what would have happened? The same, according to the specification. > How could it avoid the disaster? Not at all. > Right now I think of three possibilities, the two former seem very > unlikely to me. > > a) It would, even if the problem went undetected during testing, have > made the developers actually develop code handling this exceptional > possibility. By handling it exactly the way it was supposed to be: Assuming a hardware error and leave control to the redundant subsystem. > Which one, if any, is close to reality? As it has been mentioned here many times before, the software behaved exactly as specified and it is very unlikely that _any_ error handling could have avoided the problem - unless the error handler were buggy. Vinzent. -- = A C program is like a fast dance on a newly waxed dance floor by people = carrying razors. -- Waldi Ravens