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From: "Dmitry A. Kazakov" <mailbox@dmitry-kazakov.de>
Subject: Re: _Type vs no _Type
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Date: Sat, 6 Nov 2010 08:12:29 +0100
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Date: 2010-11-06T08:12:27+01:00
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On Fri, 05 Nov 2010 17:40:49 -0700, Jeffrey Carter wrote:

>>      function "+"(X, Y: T) return T;
>>
>> Named notation never, ever, ever makes sense for operators.
> 
> I agree, but use Left and Right for consistency.

Hmm, I would expect you arguing for

   function "/" (Dividend : T; Divisor : T) return T;

For commutative operations like "+" it becomes a bit difficult:

   function "+" (2 * Summand : T) return T;    -- (:-))

which BTW, illustrates another problem. The name meaningful for the client
is not necessarily meaningful for the implementation and conversely. For
the client of "+" operands are equivalent and names should reflect this
fact, but cannot. An implementation of "+" will have to distinguish
operands and Left/Right is a poor choice because unrelated to the
implementation. For primitive operations you even allowed to rename
arguments, which is looks very implementation-oriented.

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