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: 103376,3a7c118fd2cc64f9 X-Google-NewGroupId: yes X-Google-Attributes: gida07f3367d7,domainid0,public,usenet X-Google-Language: ENGLISH,ASCII-7-bit Path: g2news1.google.com!news2.google.com!newsfeed2.dallas1.level3.net!news.level3.com!newsfeed-00.mathworks.com!nntp.TheWorld.com!not-for-mail From: Robert A Duff Newsgroups: comp.lang.ada Subject: Re: A hole in Ada type safety Date: Thu, 12 May 2011 08:09:42 -0400 Organization: The World Public Access UNIX, Brookline, MA Message-ID: References: <87oc3odtci.fsf@mid.deneb.enyo.de> <715a5498-095c-4e61-8a09-8510c19b2553@s16g2000prf.googlegroups.com> <6fc0d396-40ca-4f32-8840-8091b94d9ddf@s14g2000vbi.googlegroups.com> NNTP-Posting-Host: shell01.theworld.com Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-Trace: pcls6.std.com 1305202182 32337 192.74.137.71 (12 May 2011 12:09:42 GMT) X-Complaints-To: abuse@TheWorld.com NNTP-Posting-Date: Thu, 12 May 2011 12:09:42 +0000 (UTC) User-Agent: Gnus/5.1008 (Gnus v5.10.8) Emacs/21.3 (irix) Cancel-Lock: sha1:wncFLTQOll6vRQuFuoCIAQqyRNE= Xref: g2news1.google.com comp.lang.ada:19233 Date: 2011-05-12T08:09:42-04:00 List-Id: AdaMagica writes: >... (Being intrinsic, Unchecked_Conversion need > not be implemented in Ada. It's true that Unchecked_Conversion need not be implemented in Ada -- it can be implemented however the compiler writer likes. But it's got nothing to do with "intrinsic". Every feature can be implemented however the compiler writer likes. For example, Text_IO.Put_Line, which is not intrinsic, need not be implemented in Ada. Intrinsic just means you can't do 'Access and similar things. - Bob