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From: Stefan Skoglund <stetson@ebox.tninet.se>
Newsgroups: comp.lang.ada
Subject: Re: Localized Variable Declaration
Date: Sun, 02 Jun 2002 03:52:16 +0200
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To: David Rasmussen <pinkfloydhomer@yahoo.com>
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Date: 2002-06-02T03:52:16+02:00
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David Rasmussen wrote:
> excels at), is the ability to declare a variable "anywhere". In C++ we
> can declare a variable exactly when it is needed, which is easier to

ok everyone told you about declar .. begin .. end ;
like:
procedure foo is
i: integer;
begin
...
declare
  i:float;
begin
  -- i is now a float
  ..
end;
  -- is now an integer
end foo;

the other thing about declare is that you can control visibility
with it. Lets take ada.strings.bounded as an example
--
with ada.strings.bounded;

procedure foo is
 wanted_length: integer;
begin
   ada.integer_textio.get(wanted_length);
   -- now you need a bounded string with length 20
   
   declare
      the_string: string[wanted_length];  --  tadaam the discriminan
must be variable
                                          -- which it really isn't.
   begin
     do something with the_string
   end;
end foo;

Or was i wrong about things ???