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: a07f3367d7,8e11100f675ea2df X-Google-Attributes: gida07f3367d7,public,usenet X-Google-NewGroupId: yes X-Google-Language: ENGLISH,ASCII-7-bit X-Received: by 10.68.224.130 with SMTP id rc2mr13892632pbc.2.1357903104614; Fri, 11 Jan 2013 03:18:24 -0800 (PST) Path: s9ni101042pbb.0!nntp.google.com!npeer03.iad.highwinds-media.com!news.highwinds-media.com!feed-me.highwinds-media.com!news.astraweb.com!border5.newsrouter.astraweb.com!newspeer1.nac.net!newsfeed.xs4all.nl!newsfeed3.news.xs4all.nl!xs4all!feeder1.cambriumusenet.nl!82.197.223.103.MISMATCH!feeder3.cambriumusenet.nl!82.197.223.108.MISMATCH!feeder2.cambriumusenet.nl!feed.tweaknews.nl!94.232.116.11.MISMATCH!feed.xsnews.nl!border-1.ams.xsnews.nl!newsfeed.x-privat.org!news.swapon.de!eternal-september.org!feeder.eternal-september.org!mx04.eternal-september.org!.POSTED!not-for-mail From: Jeffrey Carter Newsgroups: comp.lang.ada Subject: Re: asynchronous task communication Date: Tue, 08 Jan 2013 15:52:59 -0700 Organization: Also freenews.netfront.net; news.tornevall.net Message-ID: References: <1c2dnd5E6PMDR33NnZ2dnUVZ_sednZ2d@earthlink.com> <7cudnYloBfQDw3_NnZ2dnUVZ_rKdnZ2d@earthlink.com> <6bqdndEYjoxeGHnNnZ2dnUVZ_sadnZ2d@earthlink.com> Mime-Version: 1.0 Injection-Date: Tue, 8 Jan 2013 22:53:02 +0000 (UTC) Injection-Info: mx04.eternal-september.org; posting-host="656ea2f23126f57fb36504d2d15a002c"; logging-data="20203"; mail-complaints-to="abuse@eternal-september.org"; posting-account="U2FsdGVkX1/209zWK1RFSS5hO0CE/6VaEx7grr7OM50=" User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:17.0) Gecko/17.0 Thunderbird/17.0 In-Reply-To: Cancel-Lock: sha1:M0EEN2y6RbTBAtnp1bOBueLfBt0= X-Received-Bytes: 2772 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Date: 2013-01-08T15:52:59-07:00 List-Id: On 01/08/2013 02:14 PM, Simon Wright wrote: > Jeffrey Carter writes: > >> To my mind, that is Cursor behaving similarly. Just as the index 3 is >> no longer the index of the item in question, so the Cursor should not >> be relied on. > > In AdaCore's implementation, yes. But another implementation might > validly raise PE. To my mind, that'd be preferable. Whether it gives you a different component, or raises an exception, it can't be relied on. -- Jeff Carter "Whatever it is, I'm against it." Horse Feathers 46