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From: Florian Weimer <fw@deneb.enyo.de>
Newsgroups: comp.lang.ada
Subject: Re: Any way of persuading GNAT/GCC to implement a true overlay and
 not a pointer?
Date: Sat, 01 Apr 2006 19:08:30 +0200
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> I was under the impression that code of the following form :
>
> X : <Some Type>;
> Y : <Some Type>;
> for Y'Address use X'Address;
>
> would result in an overlay in the resulting code.

Could you show some more code?  Probably initialization is causing
your problems, which can be fixed with a pragma Import.