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!reader02.eternal-september.org!news.eternal-september.org!news.eternal-september.org!.POSTED!not-for-mail From: "J-P. Rosen" Newsgroups: comp.lang.ada Subject: Re: quiz for Sequential_IO Read Date: Mon, 4 Sep 2017 07:12:42 +0200 Organization: A noiseless patient Spider Message-ID: References: Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit Injection-Date: Mon, 4 Sep 2017 05:08:21 -0000 (UTC) Injection-Info: mx02.eternal-september.org; posting-host="2700b37b2435fc669d33de4584041a48"; logging-data="11995"; mail-complaints-to="abuse@eternal-september.org"; posting-account="U2FsdGVkX19pNctboy9pKq0XoRtUJAoZ" User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:52.0) Gecko/20100101 Thunderbird/52.3.0 In-Reply-To: Content-Language: fr Cancel-Lock: sha1:ZsDiESUJnSg0NlHFHDykLHj9yvo= Xref: news.eternal-september.org comp.lang.ada:47925 Date: 2017-09-04T07:12:42+02:00 List-Id: Le 03/09/2017 à 22:10, Frank Buss a écrit : >> In every language, the format of a binary file is known only to the >> compiler (I remember having been warned about this when I learned >> FORTRAN - a long time ago); the purpose of these files is to save data, >> then reread them from the same program, or at least the same language >> with the same compiler. > > This is nonsense. There are a lot of binary file specifications and of > course it should be possible to read and write these files, independent > of the programming language or the compiler. Imagine files like PNG > would only work, if you write/read them with a program, which was > compiled with exact the same compiler. I was talking about binary files defined by the language; if you use an external binary file (like .PNG), you need to use streams, whose format is well defined. -- 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