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From: "Dmitry A. Kazakov" <mailbox@dmitry-kazakov.de>
Subject: Re: Ada case-statement
Date: Wed, 14 Mar 2018 18:49:37 +0100
Date: 2018-03-14T18:49:37+01:00	[thread overview]
Message-ID: <p8bnbi$n0f$1@gioia.aioe.org> (raw)
In-Reply-To: 365d65ea-5f4b-4b6a-be9b-1bba146394ab@googlegroups.com

On 2018-03-14 18:35, Stephen Davies wrote:
> I guess that this has probably been considered before,
> but it would be nice if Ada allowed sub-cases, with
> coverage checking of the appropriate alternatives.
> This seems like a simpler change than some other recent
> ones (e.g. conditional expressions), and would remove
> one problem with not having non-contiguous subtypes.
> For example:
> 
>     case Calculate_Day is
>        when Mon .. Fri =>
>           ...
>        when Weekend : Sat | Sun =>
>           ...
>           case Weekend is
>              when Sat =>
>                 ...
>              when Sun =>
>                 ...
>           end case;
>     end case;
> 
> Ok, I know this isn't going to happen, I just wanted to
> put it out there anyway.

Great idea, would be useful for variant records and exception handlers too.

-- 
Regards,
Dmitry A. Kazakov
http://www.dmitry-kazakov.de


  reply	other threads:[~2018-03-14 17:49 UTC|newest]

Thread overview: 33+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-03-14 17:35 Ada case-statement Stephen Davies
2018-03-14 17:49 ` Dmitry A. Kazakov [this message]
2018-03-15  0:57   ` Robert I. Eachus
2018-03-15  3:10     ` Dan'l Miller
2018-03-15  5:54       ` J-P. Rosen
2018-03-15  7:56         ` Niklas Holsti
2018-03-15 12:21           ` Dan'l Miller
2018-03-15 17:22             ` Mill processor (Was: Re: Ada case-statement) Niklas Holsti
2018-03-15 21:50     ` Ada case-statement Randy Brukardt
2018-03-14 22:22 ` Mehdi Saada
2018-03-14 23:16 ` Randy Brukardt
2018-03-15  5:04   ` gautier_niouzes
2018-03-15  7:50   ` Jacob Sparre Andersen
2018-03-15 22:05     ` Randy Brukardt
2018-03-15  8:37   ` Dmitry A. Kazakov
2018-03-15 22:20     ` Randy Brukardt
2018-03-16  8:54       ` Dmitry A. Kazakov
2018-03-16 23:49         ` Randy Brukardt
2018-03-17  7:59           ` Dmitry A. Kazakov
2018-03-15 15:37   ` Stephen Davies
2018-03-15 16:33     ` J-P. Rosen
2018-03-15 17:01       ` Dmitry A. Kazakov
2018-03-15 18:41         ` Shark8
2018-03-15 21:12           ` Jeffrey R. Carter
2018-03-18  5:41             ` Robert I. Eachus
2018-03-18  6:57               ` Spiros Bousbouras
2018-03-18  9:17               ` Jeffrey R. Carter
2018-03-18 12:53                 ` Simon Wright
2018-03-15 18:50     ` Jere
2018-03-15 20:40       ` Anh Vo
2018-03-15 22:24     ` Randy Brukardt
2018-03-16  9:53       ` Stephen Davies
2018-04-03 17:56   ` marciant
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