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,a71fc4911021ed50 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:1.7.3) Gecko/20040910 X-Accept-Language: en-us, en MIME-Version: 1.0 Newsgroups: comp.lang.ada Subject: Re: Returning data from Ada to C References: <1115164192.585409.163780@z14g2000cwz.googlegroups.com> <9vYde.5480$GQ5.3731@newsread1.news.pas.earthlink.net> In-Reply-To: Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Message-ID: Date: Mon, 16 May 2005 05:03:30 GMT NNTP-Posting-Host: 4.240.240.230 X-Complaints-To: abuse@earthlink.net X-Trace: newsread1.news.pas.earthlink.net 1116219810 4.240.240.230 (Sun, 15 May 2005 22:03:30 PDT) NNTP-Posting-Date: Sun, 15 May 2005 22:03:30 PDT Xref: g2news1.google.com comp.lang.ada:11036 Date: 2005-05-16T05:03:30+00:00 List-Id: Dave Thompson wrote: > Not if Sols is a procedure-local variable, as in the OP's code, and > the (C) caller intends to dereference the resulting pointer, as it > does. For the storage to remain valid for the caller to access, it > needs either to be (in a package) at library level, or dynamically > allocated in Ada by 'new' (and some provision e.g. another callable > Ada routine for deallocating it if necessary) or by hand-built Ada > call to C's malloc in which case the C code can safely free() it. This was discussed in another message in the thread. -- Jeff Carter "You've got the brain of a four-year-old boy, and I bet he was glad to get rid of it." Horse Feathers 47