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Message-ID: <3A87A8E7.FA749BC8@baesystems.com>
Date: Mon, 12 Feb 2001 09:12:07 +0000
From: Stuart Palin <stuart.palin@baesystems.com>
Organization: BAE SYSTEMS Avionics, Rochester
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Subject: Re: Representation clause for enumeratives
References: <95tqbh$ag7$1@nnrp1.deja.com> <3A829EB8.A098925E@baesystems.com>
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Date: 2001-02-12T09:12:07+00:00
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Robert Dewar wrote:
> 
> In article <3A829EB8.A098925E@baesystems.com>,
>   Stuart Palin <stuart.palin@baesystems.com> wrote:
<snip some rubbish code>

> You could try it, but it would of course not compile :-)
<snip compiler response>
> 
> It is always a good idea to try compiling examples before
> you post them. I supposedly know Ada reasonably well, but I
> still find it easy to have a mind-slip now and then, and try
> to follow this discipline myself :-)

I plead guilty to ignoring Robert's oft given advice, and apologize to
the court :-)

I would write out the proper answer 100 times - but I don't think anyone
would like that; however, for the record I provide what I should have
written (checked with XD-Ada [83]).

  type TYP_ENUM is (C,A,B);
    -- NOTICE: 'C' has the lowest value representation and
    --         so must come first.

  for TYP_ENUM use(
     -16#80000000#,  -- NOTICE: the "-"
      16#00000002#,
      16#00000004#);

(other caveats and advice given elsewhere in this thread apply)

--
Stuart Palin