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=unavailable autolearn_force=no version=3.4.4 Path: eternal-september.org!reader01.eternal-september.org!reader02.eternal-september.org!news.eternal-september.org!news.eternal-september.org!.POSTED!not-for-mail From: "Alejandro R. Mosteo" Newsgroups: comp.lang.ada Subject: Re: Ada 2012 Constraints (WRT an Ada IR) Date: Tue, 13 Dec 2016 18:38:00 +0100 Organization: A noiseless patient Spider Message-ID: References: <92ed75e9-baae-455c-9e34-53348dc6eaef@googlegroups.com> <03847fd7-5699-48de-bb3c-ef5512398f26@googlegroups.com> <3ef819e8-55f7-4ef7-9f37-77e6abc33f98@googlegroups.com> <47366b42-c0a3-41bf-a44a-5241c109d60f@googlegroups.com> Mime-Version: 1.0 Content-Type: text/plain; charset=iso-8859-15; format=flowed Content-Transfer-Encoding: 7bit Injection-Date: Tue, 13 Dec 2016 17:36:37 -0000 (UTC) Injection-Info: mx02.eternal-september.org; posting-host="05d53532b8e857d633012e02e9d3ce5e"; logging-data="20612"; mail-complaints-to="abuse@eternal-september.org"; posting-account="U2FsdGVkX1/C/2C55aXo7SB/K73EKK70" User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:45.0) Gecko/20100101 Thunderbird/45.5.1 In-Reply-To: Cancel-Lock: sha1:xaXds8kHRat7lEicoXs5pUxfq5U= Xref: news.eternal-september.org comp.lang.ada:32781 Date: 2016-12-13T18:38:00+01:00 List-Id: On 13/12/16 16:02, Dmitry A. Kazakov wrote: > On 13/12/2016 12:56, Alejandro R. Mosteo wrote: > >> Since it seems that usually is you, Dmitry, the one coming from a more >> theoretical (mathematical? purist?) POV into the arguments, perhaps you >> could recommend to me some reference(s) where I can better understand >> the principles involved in this discussion (the part about >> preconditions/predicates, not IR)? I confess to having only a >> superficial grasping of the situation, by way of using the Ada 2012 >> facilities. > > "The science of programming" by David Gries changed my world. > > https://www.amazon.com/Science-Programming-Monographs-Computer/dp/0387964800/ref=asap_bc?ie=UTF8 > > > The rest is just to exercise little grey cells, as Poirot used to say. Thanks, let's see if my little grey cells are up to the task :P