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!.POSTED!not-for-mail From: "J-P. Rosen" Newsgroups: comp.lang.ada Subject: Re: Mariner 1 / FORTRAN bug Date: Fri, 9 Aug 2019 08:28:01 +0200 Organization: Adalog Message-ID: References: <1992Dec4.141816.1@happy.colorado.edu> <86986725-f34e-46d7-9efc-d15d94379048@googlegroups.com> <97509e4d-05b9-4b6a-ab12-613abbe562b0@googlegroups.com> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit Injection-Date: Fri, 9 Aug 2019 06:27:59 -0000 (UTC) Injection-Info: reader02.eternal-september.org; posting-host="588782d7fe391940db2528bc663e629c"; logging-data="3781"; mail-complaints-to="abuse@eternal-september.org"; posting-account="U2FsdGVkX1+22csYfr7NWoj9dQDnyl3X" User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:60.0) Gecko/20100101 Thunderbird/60.8.0 Cancel-Lock: sha1:6sr79wnpEFc5TvBEL2kNLTcoeJM= In-Reply-To: <97509e4d-05b9-4b6a-ab12-613abbe562b0@googlegroups.com> Content-Language: fr Openpgp: preference=signencrypt Xref: reader01.eternal-september.org comp.lang.ada:57015 Date: 2019-08-09T08:28:01+02:00 List-Id: Le 09/08/2019 à 03:57, robin.vowels@gmail.com a écrit : >> While it probably didn't cause the failure of a space probe, people >> did get bitten by this language design flaw, which is an example of a >> single-character error (added, omitted, or changed) that results in valid >> code. > Single-character errors are still possible, whatever the language. > Of course, you can type "-" instead of "+" in any language. But outside of mathematical formulas, can you give an example of single-character error in Ada? -- 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