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From: "Dmitry A. Kazakov" <mailbox@dmitry-kazakov.de>
Newsgroups: comp.lang.ada
Subject: Re: Efficient Sequential Access to Arrays
Date: Fri, 27 Jul 2012 10:50:41 +0200
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Date: 2012-07-27T10:50:41+02:00
List-Id: <comp.lang.ada>

On Fri, 27 Jul 2012 01:21:18 -0700 (PDT), Keean Schupke wrote:

> I am wondering if there is a way to use address arithmetic that would be
> just as safe as array indexing? What about something like:
> 
> 
> type Value_Type is limited private;
> type Index_Type is range <>;
> type Array_Type is array (Index_Type) of Value_Type;
> 
> A : Array_Type;
>  
> type Iterator = Address_Integer range A(A'First)'Address .. A(A'Last)'Address step Value_Type'Size;
> 
> This would be safe as it could only contain the address of a valid record
> in the array, and the syntax could be neat with automatic dereferencing.

Value_Type = Boolean

-- 
Regards,
Dmitry A. Kazakov
http://www.dmitry-kazakov.de