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: 103376,7050446df2bdd3ac 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!newsread3.news.pas.earthlink.net.POSTED!a6202946!not-for-mail From: "Jeffrey R. Carter" Organization: jrcarter at acm dot org User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.7.12) Gecko/20050915 X-Accept-Language: en-us, en MIME-Version: 1.0 Newsgroups: comp.lang.ada Subject: Re: Interfacing to C and void* References: <43fa0960$0$505$9b4e6d93@newsread4.arcor-online.net> In-Reply-To: <43fa0960$0$505$9b4e6d93@newsread4.arcor-online.net> Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Message-ID: <2goKf.3760$JR6.1501@newsread3.news.pas.earthlink.net> Date: Mon, 20 Feb 2006 18:54:54 GMT NNTP-Posting-Host: 67.150.73.148 X-Complaints-To: abuse@earthlink.net X-Trace: newsread3.news.pas.earthlink.net 1140461694 67.150.73.148 (Mon, 20 Feb 2006 10:54:54 PST) NNTP-Posting-Date: Mon, 20 Feb 2006 10:54:54 PST Xref: g2news1.google.com comp.lang.ada:3018 Date: 2006-02-20T18:54:54+00:00 List-Id: Georg Bauhaus wrote: > Maciej Sobczak wrote: > >>Suppose I have the following two C functions: >> >>void * factory(); > > I have seen System.Address used for this. Not good practice, since System.Address need not correspond to a C pointer. Generally, void* is never dereferenced, so any C-convention access type is suitable. I usually use type Void_Ptr is access all Integer; pragma Convention (C, Void_Ptr); function Factory return Void_Ptr; pragma Import (C, Factory, "factory"); -- Jeff Carter "Alms for an ex-leper!" Monty Python's Life of Brian 75