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: border2.nntp.dca1.giganews.com!border1.nntp.dca1.giganews.com!nntp.giganews.com!news.glorb.com!feeder.erje.net!1.eu.feeder.erje.net!eternal-september.org!feeder.eternal-september.org!mx02.eternal-september.org!.POSTED!not-for-mail From: Paul Rubin Newsgroups: comp.lang.ada Subject: Re: {Pre,Post}conditions and side effects Date: Fri, 08 May 2015 17:14:51 -0700 Organization: A noiseless patient Spider Message-ID: <87pp6a1u9w.fsf@jester.gateway.sonic.net> References: <2430252d-52a1-4609-acef-684864e6ca0c@googlegroups.com> <0a718b39-ebd3-4ab5-912e-f1229679dacc@googlegroups.com> <9ee5e186-5aaa-4d07-9490-0f9fdbb5ca18@googlegroups.com> <87tww5296f.fsf@adaheads.sparre-andersen.dk> <871tj9dp5b.fsf@theworld.com> Mime-Version: 1.0 Content-Type: text/plain Injection-Info: mx02.eternal-september.org; posting-host="bda44be170c76b3ef6d23fecd204a8fa"; logging-data="8848"; mail-complaints-to="abuse@eternal-september.org"; posting-account="U2FsdGVkX19ZcgCThHcDVwc47zDI1H7/" User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/24.3 (gnu/linux) Cancel-Lock: sha1:yLwC1npi9YIfWMlQpzVHNwgLsKU= sha1:2t18k66p4i0ieREBycS9sIC8t40= Xref: number.nntp.giganews.com comp.lang.ada:193091 Date: 2015-05-08T17:14:51-07:00 List-Id: "Randy Brukardt" writes: > For example, in this "Is_Sorted" example, if you are assuming that some > object is sorted, then it should have a predicate to that effect. Randy, is that a real possibility with SPARK--to have a predicate that says that an array is sorted and have it verified at compile time by the compiler? I thought SPARK mostly was for proving rather simpler conditions.