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From: "Randy Brukardt" <randy@rrsoftware.com>
Newsgroups: comp.lang.ada
Subject: Re: {Pre,Post}conditions and side effects
Date: Tue, 12 May 2015 17:01:45 -0500
Organization: Jacob Sparre Andersen Research & Innovation
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References: 
 <2430252d-52a1-4609-acef-684864e6ca0c@googlegroups.com><AnYlw.957256$Rp.242412@fx23.iad><0a718b39-ebd3-4ab5-912e-f1229679dacc@googlegroups.com><wccoaqucn51.fsf@shell01.TheWorld.com><9ee5e186-5aaa-4d07-9490-0f9fdbb5ca18@googlegroups.com><alpine.CYG.2.11.1412231747100.4196@WIL414CHAPIN.vtc.vsc.edu><wccegrpq2om.fsf@shell01.TheWorld.com><87tww5296f.fsf@adaheads.sparre-andersen.dk><871tj9dp5b.fsf@theworld.com><ce4af31e-d491-479f-a5b3-0b3eedea2a68@googlegroups.com><midvq5$2u3$1@loke.gir.dk><alpine.DEB.2.11.1505071103310.14859@debian><migc9a$jp8$1@loke.gir.dk><alpine.DEB.2.11.1505072052570.16448@debian><mijen0$1hj$1@loke.gir.dk>
 <87pp6a1u9w.fsf@jester.gateway.sonic.net><mirhjl$kvm$1@loke.gir.dk>
 <877fsd1xb5.fsf@jester.gateway.sonic.net>
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Xref: news.eternal-september.org comp.lang.ada:25853
Date: 2015-05-12T17:01:45-05:00
List-Id: <comp.lang.ada>

"Paul Rubin" <no.email@nospam.invalid> wrote in message 
news:877fsd1xb5.fsf@jester.gateway.sonic.net...
> "Randy Brukardt" <randy@rrsoftware.com> writes:
>>> Randy, is that a real possibility with SPARK--to have a predicate that
>>> says that an array is sorted
>> I have no idea, SPARK is not at all my idea of how Ada should work.
>
> Hmm, ok, I had been confused on that issue.
>
> So can you say what the predicate for a sorted array would look like in
> Janus/ADA, and how the compiler would verify it?

I answered that somewhere else in this thread (it just uses appropriate 
predicates, usually "Dynamic_Predicates" since static predicates cannot 
contain anything useful for composite types).

                       Randy.