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From: dewar@merv.cs.nyu.edu (Robert Dewar)
Subject: Re: Representation of Variant record
Date: 1997/02/21
Message-ID: <dewar.856574035@merv>#1/1
X-Deja-AN: 220580913
References: <330DC254.7682@ccgate.hac.com>
Organization: New York University
Newsgroups: comp.lang.ada
Date: 1997-02-21T00:00:00+00:00
List-Id: <comp.lang.ada>


Ayman asks

<<How is a variant record implemented in Ada. I need to write a variant
record and then be able to read its contents and copy them into a C
union.>>

This is a misformed question. There is no general answer, you can only
ask how a variant record is implemented in a given implementation of 
Ada on a particular machine with a particular operating system, not
in general for the ada language.

However, there is probably a nice answer for you, which is look up
pragma Unchecked_Union, it is *specifically* intended for interfacing
to C unions.