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-Language: ENGLISH,ASCII-7-bit X-Google-Thread: 103376,7350da5176edec2c X-Google-Attributes: gid103376,public X-Google-ArrivalTime: 2002-07-26 15:58:12 PST Path: archiver1.google.com!news1.google.com!newsfeed.stanford.edu!news-spur1.maxwell.syr.edu!news.maxwell.syr.edu!newsfeed.icl.net!newsfeed.fjserv.net!colt.net!kibo.news.demon.net!demon!peernews!peer.cwci.net!newspeer1-gui.server.ntli.net!ntli.net!newsfep3-gui.server.ntli.net.POSTED!53ab2750!not-for-mail From: "chris.danx" User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.1b) Gecko/20020721 X-Accept-Language: en-gb, en-us, en MIME-Version: 1.0 Newsgroups: comp.lang.ada Subject: Re: In a pickle. References: Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit X-Inktomi-Trace: pc3-bbrg1-2-cust234.ren.cable.ntl.com 1027724290 21136 80.5.140.234 (26 Jul 2002 22:58:10 GMT) Message-ID: <7uk09.2300$wc5.19148@newsfep3-gui.server.ntli.net> Date: Fri, 26 Jul 2002 23:57:33 +0100 NNTP-Posting-Host: 80.3.128.4 X-Complaints-To: abuse@ntlworld.com X-Trace: newsfep3-gui.server.ntli.net 1027724291 80.3.128.4 (Fri, 26 Jul 2002 23:58:11 BST) NNTP-Posting-Date: Fri, 26 Jul 2002 23:58:11 BST Organization: ntl News Service Xref: archiver1.google.com comp.lang.ada:27429 Date: 2002-07-26T23:57:33+01:00 List-Id: Grein, Christoph wrote: > See my paper about Safe_Pointers in my home page. Tis' very good. > http://home.T-online.de/home/Christ-Usch.Grein/Ada > > This discusses in great detail how reference counting pointers can be > implemented. This might help. This paper has appeared some time ago in > Ada Letters and also in Ada User Journal. ping (lightbulb)! I've constructed a rather contrived program using your safe pointers package dealing with the same situation as the iterators which works as required (I think). I will attempt to work out the details for the list and hopefully if the above program expresses the intent correctly, the iterator problem will be resolved. > HTH > > Christoph Grein Thanks Christoph, it was most helpful. -- to reply directly change 'spamoff' to 'chris'