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From: "Randy Brukardt" <randy@rrsoftware.com>
Newsgroups: comp.lang.ada
Subject: Re: We should introduce aliased types
Date: Fri, 1 Aug 2014 14:47:41 -0500
Organization: Jacob Sparre Andersen Research & Innovation
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Date: 2014-08-01T14:47:41-05:00
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"Victor Porton" <porton@narod.ru> wrote in message 
news:lrgp2h$h3n$1@speranza.aioe.org...
...
> One situation in which we need aliased types (not a single aliased 
> variable)
> is Initialize() procedure for controlled types.

This is already true. Controlled types are by-reference, so it's legal to 
take 'Access of a subprogram parameter of the type. Specifically:

    procedure Initialize (Obj : T) is
    begin
         Obj.Ptr := T'Unchecked_Access;
    end Initialize;

is legal.

Did you actually try this before writing??

                                       Randy.