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From: lutz@iks-jena.de (Lutz Donnerhacke)
Newsgroups: comp.lang.ada
Subject: Re: Does a null pointer always raise Constraint_Error?
Date: 13 Dec 2000 08:58:27 GMT
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Date: 2000-12-13T08:58:27+00:00
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* Robert Dewar wrote:
[access to empty arrays represent as Null (System.Address)]
>   subtype n is string (1 .. 0);
>   type np is access n;
>   a, b : np;
>
>   if a.all = b.all then ...
>
>it is a common compiler bug to translate this as
>
>   for j in n'range loop
>     if a.all (j) = b.all (j) ....
>
>and the null loop causes no checks to be made :-)

I do not see the bug.

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