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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 09:09:49 -0700 (PDT)
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Date: 2009-09-02T09:09:49-07:00
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On Sep 2, 10:33=A0am, Adam Beneschan <a...@irvine.com> wrote:

> However, you can get around this by embedding the variant record
> inside another record:
>
> =A0 =A0type Rec is record
> =A0 =A0 =A0 Name : t_X520CommonName;
> =A0 =A0end record;
> =A0 =A0type Acc_Rec is access all Rec;
>
> Now, if X has type Acc_Rec, you can pass X.Name to your procedure, and
> it will be unconstrained (and therefore mutable).
>
> This is a workaround that I've used extensively in my own code, by the
> way.
>
> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =
=A0 -- Adam

Yup, that works. I can not say I quite understand why, so for sure I
would not be able to invent that by myself.

Thank you very much!

Vladimir