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From: Kilgallen@SpamCop.net (Larry Kilgallen)
Newsgroups: comp.lang.ada
Subject: Re: Localized Variable Declaration
Date: 31 May 2002 12:04:05 -0600
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In article <adLJ8.776$i01.53350@news8-gui.server.ntli.net>, "martin.m.dowie" <martin.m.dowie@ntlworld.com> writes:
> "David Rasmussen" <pinkfloydhomer@yahoo.com> wrote in message
> news:3CF77CDA.3090805@yahoo.com...
>> Oh sure, but that is pretty tedious, compared to just a one line
>> variable declation. The point is, to be a bit extreme, that centralized
>> variable declations (e.g. at the "beginning" of the function) as done in
>> C and Pascal, are evil. Variables should be declared close to where they
>> are needed, IMO.
> 
> Sure, but that's what you get with a declare ... begin ... end. You also get
> to delimit the scope in the example I gave there could have been 100 more
> lines after the 'end' that just didn't need visibility of the local
> variable. Can
> you do that with a 'one line variable declaration'?

procedure Blah is
begin  -- Blah
   if Some_Function then
      declare Local_Variable : Integer; begin do_something; end;
   else
   end if;
end Blah;



Oh sure, but that is pretty tedious, compared to just a one line 
variable declation. The point is, to be a bit extreme, that centralized 
variable declations (e.g. at the "beginning" of the function) as done in 
C and Pascal, are evil. Variables should be declared close to where they 
are needed, IMO.

/David