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From: Adam Beneschan <adam@irvine.com>
Newsgroups: comp.lang.ada
Subject: Re: When a conditional expression is static, where can it be used?
Date: Wed, 30 Jun 2010 07:39:24 -0700 (PDT)
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Date: 2010-06-30T07:39:24-07:00
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On Jun 30, 3:39=A0am, Georg Bauhaus <rm.dash-bauh...@futureapps.de>
wrote:
> A totally meaningless example just to illustrate
> the question: =A0What is it that a compiler must report
> for the case statement below, if anything?

The choice "Sa" is not covered by any alternative.  Other than that, I
don't think there's anything wrong with the CASE statement, and if you
had included a "when others =3D>" alternative I think it would be
legal.  I'm not sure what potential problem you were trying to
illustrate.

                   -- Adam

>
> procedure CE is
>
> =A0 =A0type DOW is (Mo, Tu, We, Th, Fr, Sa, So);
>
> =A0 =A0procedure P is begin null; end P;
>
> =A0 =A0D: constant DOW :=3D We;
> begin
> =A0 =A0case D is
> =A0 =A0 =A0 when Mo | We | Fr =3D> P;
> =A0 =A0 =A0 when (if D =3D We or D =3D Fr then So else Sa) =3D> P;
> =A0 =A0 =A0 when Tu | Th =A0=3D> P;
> =A0 =A0end case;
> end CE;
>
> Georg