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From: Georg Bauhaus <sb463ba@l1-hrz.uni-duisburg.de>
Newsgroups: comp.lang.ada
Subject: Re: Question about OO programming in Ada
Date: Tue, 9 Dec 2003 11:24:42 +0000 (UTC)
Organization: GMUGHDU
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Chad Bremmon <bremmon@acm.org> wrote:
: The state of the boolean is not kept in a variable.  The code I wrote 
: actually changes the register to turn the light on and off.  A boolean 
: is not necessary to keep track of the light.  Either the damn light is 
: on or off.

Though, if you are the maintainer of a program and see a record
with a boolean component that is never used, how do you, as a
maintainer of readable code, decide what the boolean is about?
All the more when the Boolean, by its name, is obviously related
to subprograms with similar names and "matching" parameter profile?
And then you learn that the author says, the Boolean is unnecessary?
(And this has nothing whatsoever to do with C++ or Ada, does it?)

I would have enjoyed the article more if it had stuck to
the interesting and clear explanation of why O-O is useful,
and how it is done in Ada.
I could imagine that due to its C++ bashing readers are
less likely to see advantages of Ada that you have depicted.

-- Georg