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From: "Dmitry A. Kazakov" <mailbox@dmitry-kazakov.de>
Newsgroups: comp.lang.ada
Subject: Re: Question: dynamic rename?
Date: Sat, 3 Sep 2011 12:47:42 +0200
Organization: cbb software GmbH
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Date: 2011-09-03T12:47:42+02:00
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On Sat, 03 Sep 2011 11:04:05 +0100, Simon Wright wrote:

> "Dmitry A. Kazakov" <mailbox@dmitry-kazakov.de> writes:
> 
>> On Fri, 2 Sep 2011 19:28:38 -0700 (PDT), Darkwing wrote:
>>
>>> Is there an Ada elegant way to do something like the following:
>>> 
>>> signal : signal_type renames =>
>>> case configuration is
>>>  when one => signal_one;
>>>  when two => signal_two;
>>> end case;
>>
>> Nested subprogram taking signal as an argument.
> 
> I thought that, but what if signal_one, signal_two were variables and
> you needed an lvalue?

declare
   procedure Do_Things (Signal : in out Signal_Type) is
   begin
       ...
   end Do_Things;
begin
   case Configuration is
     when one =>
         Do_Things (Signal_one);
     when two =>
         Do_Things (Signal_two);
   end case;
   ...
?

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