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: 103376,575dfcf6488662de X-Google-Attributes: gid103376,public X-Google-Language: ENGLISH,ASCII-7-bit Path: g2news1.google.com!news3.google.com!newshub.sdsu.edu!elnk-nf2-pas!newsfeed.earthlink.net!stamper.news.pas.earthlink.net!newsread1.news.pas.earthlink.net.POSTED!a6202946!not-for-mail From: Jeffrey Carter Organization: jrcarter commercial-at acm [period | full stop] org User-Agent: Mozilla/5.0 (Windows; U; Win98; en-US; rv:1.4) Gecko/20030624 X-Accept-Language: en-us, en MIME-Version: 1.0 Newsgroups: comp.lang.ada Subject: Re: Libraries written in Ada References: <18687975.p80OmDsB1I@linux1.krischik.com> <1464020.dFWPVBaaRG@linux1.krischik.com> <1966293.u6rVSTIjq0@linux1.krischik.com> <29776258.sBDdEVhOhy@linux1.krischik.com> In-Reply-To: Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Message-ID: Date: Tue, 23 Nov 2004 18:39:22 GMT NNTP-Posting-Host: 63.184.105.77 X-Complaints-To: abuse@earthlink.net X-Trace: newsread1.news.pas.earthlink.net 1101235162 63.184.105.77 (Tue, 23 Nov 2004 10:39:22 PST) NNTP-Posting-Date: Tue, 23 Nov 2004 10:39:22 PST Xref: g2news1.google.com comp.lang.ada:6387 Date: 2004-11-23T18:39:22+00:00 List-Id: It's certainly possible to write a package that can be used from C without worrying about runtime or initialization/finalization. Just follow some simple rules: * The package must be Pure or Preelaborate * The package cannot be generic * Do not use any tasking constructs * Do not propagate any exceptions * Any initialization and finalization must be provided by operations that must be explicitly called by the user. In other words, make it look just like a C library. This is an issue that must be considered by people working on Ada OSes, where the interface to the OS is in Ada, and other languages must use a binding to the Ada version. It would be interesting to hear how they deal with the matter. -- Jeff Carter "We use a large, vibrating egg." Annie Hall 44