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=-0.9 required=5.0 tests=BAYES_00,FORGED_GMAIL_RCVD, FREEMAIL_FROM autolearn=no autolearn_force=no version=3.4.4 X-Google-Thread: a07f3367d7,c9d5fc258548b22a X-Google-Attributes: gida07f3367d7,public,usenet X-Google-NewGroupId: yes X-Google-Language: ENGLISH,ASCII Path: g2news1.google.com!postnews.google.com!y36g2000pra.googlegroups.com!not-for-mail From: Shark8 Newsgroups: comp.lang.ada Subject: Re: How do I write directly to a memory address? Date: Wed, 9 Feb 2011 14:23:10 -0800 (PST) Organization: http://groups.google.com Message-ID: <9bff52ca-6213-41da-8fa4-3a4cdd8086d3@y36g2000pra.googlegroups.com> References: <67063a5b-f588-45ea-bf22-ca4ba0196ee6@l11g2000yqb.googlegroups.com> <4d51905c$0$19486$882e7ee2@usenet-news.net> <36212a7b-deab-45d9-ac45-aa29cd90c7bc@o18g2000prh.googlegroups.com> <4d51a7bb$0$19486$882e7ee2@usenet-news.net> <4d52b489$0$19486$882e7ee2@usenet-news.net> <9a8njlwvey1p.1a96yvvgdf6yu.dlg@40tude.net> <4d52c5e5$0$19486$882e7ee2@usenet-news.net> <720b7e8f-1ae2-4b3b-851e-12b08b3c99e0@r4g2000prm.googlegroups.com> <4d52dd97$0$18057$882e7ee2@usenet-news.net> <9a8f406d-05ca-4bf3-8487-918d4e0dd634@o18g2000prh.googlegroups.com> <4d52ee47$0$18057$882e7ee2@usenet-news.net> <4d5306a0$0$18057$882e7ee2@usenet-news.net> <76c123ab-7425-44d8-b26d-b2b41a9aa42b@o7g2000prn.googlegroups.com> <4d5310ab$0$18057$882e7ee2@usenet-news.net> NNTP-Posting-Host: 174.28.151.164 Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable X-Trace: posting.google.com 1297290190 1018 127.0.0.1 (9 Feb 2011 22:23:10 GMT) X-Complaints-To: groups-abuse@google.com NNTP-Posting-Date: Wed, 9 Feb 2011 22:23:10 +0000 (UTC) Complaints-To: groups-abuse@google.com Injection-Info: y36g2000pra.googlegroups.com; posting-host=174.28.151.164; posting-account=lJ3JNwoAAAAQfH3VV9vttJLkThaxtTfC User-Agent: G2/1.0 X-HTTP-UserAgent: Mozilla/5.0 (Windows; U; Windows NT 6.0; en-US; rv:1.9.2.13) Gecko/20101203 Firefox/3.6.13 ( .NET CLR 3.5.30729; .NET4.0E),gzip(gfe) Xref: g2news1.google.com comp.lang.ada:17179 Date: 2011-02-09T14:23:10-08:00 List-Id: On Feb 9, 3:09=A0pm, Hyman Rosen wrote: > On 2/9/2011 4:40 PM, Shark8 wrote: > > > What induction *CAN* do is tell you whether or not SumTo > > is correctly constructed and that, barring exceptions, is > > what guarantees the return-value to be correct. > > > IE It is a proof of correctness; not per se a returner of values. > > Oh. OK, then. But I need to know what my SumTo function is going to > do with a given value of N. I'm trying to reason about the behavior > of my code here, not abstract math. ...Ah, so then does this mean that when you're coding something up you don't care about "abstract logic"? I hate to tell you {not really} but you JUST used "abstract math" when you presented a subprogram which yields the same results for any given input. IOW, you have shot your own argument down.