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From: Florian Weimer <fw@deneb.enyo.de>
Newsgroups: comp.lang.ada
Subject: Re: _Type vs no _Type
Date: Fri, 05 Nov 2010 18:49:07 +0100
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Date: 2010-11-05T18:49:07+01:00
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* Shark8:

> Consider this code:
>
> Type THIS is private;
> Procedure this( This: out THIS; THis : in THIS; THIs : in out THIS );
>
> Upon *hearing* your boss say "There is a problem in the program with
> this; fix it." what "this" is he talking about?

Given that Ada allows you to write this:

   Type TΗIS is private;
   Procedure this( Τhis: out TΗIS; ΤΗis : in TΗIS; THIs : in out TΗIS );

if you really want to, I find this argument totally out of place in
the Ada context.  (In any case, a program which is provable correct,
passes the compiler, and works as expected, can still be written in a
bad style.)

There is a considerable amount of wording in the standard to make the
example above legal, so I guess some people feel really strongly about
this language feature.  And it interacts very badly with case
insensitivity, by the way.