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From: "Jed" <jehdiah@orbitway.net>
Newsgroups: comp.lang.c++,comp.lang.ada
Subject: Re: Why use C++?
Date: Sat, 13 Aug 2011 23:49:00 -0500
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Date: 2011-08-13T23:49:00-05:00
List-Id: <comp.lang.ada>

Dmitry A. Kazakov wrote:

> Choosing an implementation is an optimization
> issue,

Hmm. The truth of this is "easily" determined (by academics, not by me!). 
Starting in on the theory, the "register" keyword is a good starting 
point for thought. Yes, it decidedly does not belong in a language, for 
it is for a compiler to worry about. OTOH, (the other extreme), total 
abstraction from the machine is <something> because ... ah ha! I know 
why. :) OK, figured it out. "Nevermind".

> you can aim at memory use, at time, at best lock-free sharing
> and so on. Fixing a machine type makes your program potentially less
> efficient. More precisely you specify the semantics of required type,
> more knowledge the compiler has to generate efficient code.
>
>>> 2. I don't care about the platform, I care about what the program is
>>> supposed to do. The type's properties shall be defined by the
>>> application domain.
>>
>> Can you give an example of where that would be an issues not solved
>> by user defined types?
>
> BTW, the point was: don't use built-in numeric types.

OK, but after the hardware guys all conform to a standard. Till then, it 
ain't happenin.