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From: "Dmitry A. Kazakov" <mailbox@dmitry-kazakov.de>
Subject: Re: for S'Image use Func??
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Date: Tue, 11 May 2010 19:15:07 +0200
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Date: 2010-05-11T19:15:05+02:00
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On Tue, 11 May 2010 17:56:44 +0200, Yannick Duch�ne (Hibou57) wrote:

> Le Tue, 11 May 2010 10:35:24 +0200, Dmitry A. Kazakov  
> <mailbox@dmitry-kazakov.de> a �crit:
> 
>> On Mon, 10 May 2010 23:30:28 +0200, Ludovic Brenta wrote:
>>
>>> Maciej Sobczak <see.my.homepage@gmail.com> writes:
>>>> Coming back to I/O - what I miss in Ada is the equivalent of fread in
>>>> C - that is, an operation that reads *up to* the given number of
>>>> bytes. Or maybe there is something that I didn't notice? Such an
>>>> operation is an important basis for custom buffered input.
>>
>> It is a basis for creating inefficient time and space consuming programs.
>> But we had this discussion before.

> Can you tell more please ?

Buffering = making copies. A copy is always an overhead. It pays off if you
have asynchronous components (use them in parallel), or components with
high switching overhead, or faster memory (caching, indexing etc). If you
don't have that it is just a loss.

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