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From: vldmr <vldmrrr@gmail.com>
Newsgroups: comp.lang.ada
Subject: Re: Variant record assignment fails discriminant check
Date: Wed, 2 Sep 2009 08:09:23 -0700 (PDT)
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Date: 2009-09-02T08:09:23-07:00
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On Sep 2, 9:52=A0am, Adam Beneschan <a...@irvine.com> wrote:
> On Sep 2, 7:25=A0am, vldmr <vldm...@gmail.com> wrote:
>
> Only if the actual parameter is mutable when you call the procedure.
...
>
> OK, so I'll bet your next question is: So how do I declare an object
> to be unconstrained (mutable), but give its discriminant an initial
> value other than the default (X520CommonName_teletexString)?
>
> =A0 =A0WXY : t_X520CommonName :=3D (choice_Id =3D>
> X520CommonName_printableString,
> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 others =3D> <=
>);
>
> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =
=A0 =A0 =A0 -- Adam

Oh, thank, make sense now. At least I see where my problem is. In my
case WXY is actually declared as access to record, and is initialized
using Unchecked_Conversion from external memory address, pointing to
zero filled memory.

Any advice how to declare an access to variant record to be mutable?

Thank you,

Vladimir