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From: "Dmitry A. Kazakov" <mailbox@dmitry-kazakov.de>
Subject: Re: overloading predefined operators
Date: Fri, 24 Jun 2022 10:23:48 +0200	[thread overview]
Message-ID: <t93sak$10r4$1@gioia.aioe.org> (raw)
In-Reply-To: 1fabca7a-e3f0-41bb-9b51-9eabde85e800n@googlegroups.com

On 2022-06-24 10:10, L. B. wrote:
> I have a question regarding redefining of operators like "=". My dummy code is:
> 
> type my_float is new float;
> 
> -- This overloads the predefined equality operation:
> function "=" (left, right : in my_float) return boolean is begin
>   ....
> end "="
> 
> a, b : my_float;
> 
> a := 0.01
> b := 0.009;
> 
> -- This test uses the overloading equality test:
> if a = b then -- uses the new "="
>   null;
> end if;
> 
> -- For some reasons I still need access to the overloaded original "=" function:
> if a = b then -- shall use the original "="
>   null;
> end if;
> 
> What can I do ?

Rename the inherited operation before killing it:

    type M_Float is new Float;
    function Equal (Left, Right : M_Float) return Boolean renames "=";
    function "=" (Left, Right : M_Float) return Boolean;

-- 
Regards,
Dmitry A. Kazakov
http://www.dmitry-kazakov.de

       reply	other threads:[~2022-06-24  8:23 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <1fabca7a-e3f0-41bb-9b51-9eabde85e800n@googlegroups.com>
2022-06-24  8:23 ` Dmitry A. Kazakov [this message]
2022-06-24  9:44   ` overloading predefined operators L. B.
2022-06-25  3:18   ` Randy Brukardt
2022-06-25  5:58     ` L. B.
2022-06-25  6:21       ` G.B.
2022-06-24 10:47 ` Jeffrey R.Carter
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