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From: "Dmitry A. Kazakov" <mailbox@dmitry-kazakov.de>
Subject: Re: S-expression I/O in Ada
Newsgroups: comp.lang.ada
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Date: Tue, 10 Aug 2010 09:07:03 +0200
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Date: 2010-08-10T09:07:03+02:00
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On Tue, 10 Aug 2010 00:21:46 +0200, Georg Bauhaus wrote:

> Dmitry A. Kazakov wrote:
>> there is only one right way.
> 
> (There is one right way per person. Some agree on the right way.
> Even those who believe(!) in the one right way don't know(!)
> for sure ... ;-)

It is the purpose of science to find the right way. No, it wondered so
many, why is there only one mathematics, a product of pure imagination? But
it is out of comp.lang.ada scope.

>> ["+"] is broken in C because it contradicts to the
>> mathematical meaning of.
> 
> The mathematical meaning of "+" is ambiguous or context dependent.

It is exact in each context. C's authors didn't mean matrix addition when
they designed +.

> It depends on the definitions of "+" etc.

Meaning depends on definitions? There must be something wrong in this
sentence...

>  > So what do you propose? To keep it broken? Because
>> people better understand broken stuff? They don't.
> 
> Use operator symbols that clearly separate:
> 
> - traditional mathematical addition
> - computer addition

I don't know what computer addition is. Computer does not count. Computer
*models* counting. Function "+" is a model of what?
 
> int f() {}
> int (*g)() = f + 4;
> int main()
> {
>    return g();
> }

I have no problem with this. They don't model integers here. They do
software faults. As such + perfectly serves the purpose.  (:-))

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