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From: georg bauhaus <rmhost.bauhaus@maps.arcor.de>
Subject: Re: Ada2012 : When to use expression functions rather than function bodies?
Date: 17 Dec 2011 12:45:38 GMT
Date: 2011-12-17T13:45:38+01:00	[thread overview]
Message-ID: <1697334721345818104.523316rmhost.bauhaus-maps.arcor.de@news.arcor.de> (raw)
In-Reply-To: jcgqrb$cdv$1@munin.nbi.dk

"Randy Brukardt" <randy@rrsoftware.com> wrote:
.
> 
> You could write all of your preconditions like:
> 
>      procedure Do_It (A, B : in out Integer)
>          with Pre => Do_It_Precondition (A, B);
> 
> but no one would have any idea what the precondition is. 

I'm guessing that Dmitry will suggest

  Procedure Do_It (A, B: Int_Sats_Pre) with
    Pre => True;

will be safer and will convey the idea
of the precondition better: it is in the type system.
Whether this approach is feasible in general
I don't know.



  reply	other threads:[~2011-12-17 12:45 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-12-16 12:25 Ada2012 : When to use expression functions rather than function bodies? Martin
2011-12-16 13:24 ` Dmitry A. Kazakov
2011-12-17  1:03   ` Randy Brukardt
2011-12-16 18:03 ` Adam Beneschan
2011-12-16 20:36   ` Martin Dowie
2011-12-16 21:34     ` Adam Beneschan
2011-12-16 23:08       ` Adam Beneschan
2011-12-17 12:26   ` georg bauhaus
2011-12-16 22:01 ` Jeffrey Carter
2011-12-16 22:52   ` Adam Beneschan
2011-12-16 23:09     ` Adam Beneschan
2011-12-17  1:21     ` Randy Brukardt
2011-12-17 12:45       ` georg bauhaus [this message]
2011-12-17 13:11         ` Dmitry A. Kazakov
2011-12-19 23:34           ` Randy Brukardt
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