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From: dennison@telepath.com
Subject: Re: Can I have an array of variant records?
Date: 1999/04/22
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In article <87k8v5oazn.fsf@bglbv.my-dejanews.com>,
  bglbv@my-dejanews.com wrote:
> Robert Dewar <robert_dewar@my-dejanews.com> writes:
>
> > Of course typical compilers will allocate the maximum space
> > for each element, so if this is not acceptable, you will
> > indeed need to use pointers.
>
> Aha. So it isn't enough _in practice_ to give the discriminant a
> default value: one also needs to pick its subtype carefully.
> How big is Positive'Last on a typical implementation, I wonder?
> (>= 32767, I know.) Still, this looks cleaner than my Bounded_String
> suggestion.


Very perceptive of you. Yes, I have seen people get STORAGE_ERROR at runtime
(in Ada 83) for that exact reason. Some compilers are even smart enough to
point this out to you.

--
T.E.D.

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