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From: Lutz Donnerhacke <lutz@iks-jena.de>
Newsgroups: comp.lang.ada
Subject: Re: Concatenation and Characters
Date: Wed, 23 Oct 2002 10:10:37 +0000 (UTC)
Organization: IKS GmbH Jena
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* Dmitry A Kazakov wrote:
> On Wed, 23 Oct 2002 09:08:24 +0000 (UTC), Lutz Donnerhacke
>>Then I use
>>   declare
>>      empty : Array_Type (Offset_Type'Last ..
>>                          Offset_Type'Pred(Offset_Type'Last));
>>   begin
>>      return empty;
>>   end;
> 
> There is a pathological case when this does not work:
> 
> type Index is new Integer range Integer'First..Integer'First;
> type Array_Type is array (Index range <>) of Integer;

Of course. I'd change this construct to:
   declare
      empty : Array_Type (Offset_Type'Last ..
                          Offset_Type'Base'Pred(Offset_Type'Last));
   begin
      return empty;
   end;

But really in the case of generics, I don't expect such functionality.
Requireing an generic empty variable is more approbriate.