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From: Robert A Duff <bobduff@TheWorld.com>
Newsgroups: comp.lang.ada
Subject: Re: How to access an array using two different indexing schemes
Date: Fri, 24 Nov 2017 17:15:33 -0500
Organization: The World Public Access UNIX, Brookline, MA
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Date: 2017-11-24T17:15:33-05:00
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Jerry <list_email@icloud.com> writes:

> On Friday, November 24, 2017 at 10:37:30 AM UTC-7, A. Cervetti wrote:
>>    for Y'Address use X'Address; -- <<<<<<<<<<<<<<<<<<<<

> Nice. Thank you. That solves the "version control" or "bookkeeping"
> problem, but it still requires allocating double memory, for y.

No, X and Y are allocated at the same address.
That's the point of this low-level hack.

- Bob