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Subject: Re: Ideas for Ada 200X
From: Bill Findlay <yaldnifw@blueyonder.co.uk>
Newsgroups: comp.lang.ada
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Date: Sat, 31 May 2003 19:23:01 +0100
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Date: 2003-05-31T19:23:01+01:00
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On 31/5/03 18:18, in article bbao0u$7icu0$1@ID-77047.news.dfncis.de, "Dmitry
A. Kazakov" <mailbox@dmitry-kazakov.de> wrote:

> Bill Findlay wrote:
> 
>> On 31/5/03 12:42, in article uisrrnxzk.fsf@wanadoo.fr, "Pascal Obry"
>> <p.obry@wanadoo.fr> wrote:
>>> 
>>> Right! I must be a bit tired to forget that :) So I think it could be
>>> /:= *:= +:= and -:= (operators before the :=).
>> 
>> What about and, or, xor, rem and mod? "mod:=" ? I hope not!
> 
> You forgot :**= and unary :+=, :-=, :not=. For example:
> 
> X :not=; -- C people will envious! (:-))

It was Freudian repression of the unacceptable. 8-)

> Rather tasteless, I would better allow:
> 
>  procedure "+" (L in out T; R : T);
> 
> then one could write:
> 
> declare
>  X : T := ...;
> begin
>  X + 1;

I think this *is* a bit error-prone.
We have a perfectly good syntax for changing a variable, namely assignment.
The fewer notations there are for the same thing, the better, surely.
 
> 
> And crowning:
> 
> 4.  I : Integer := idem + 1;  -- OK, just a joke

8-)

-- 
Bill-Findlay chez blue-yonder.co.uk ("-" => "")