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From: "Randy Brukardt" <randy@rrsoftware.com>
Newsgroups: comp.lang.ada
Subject: Re: Performance of the Streams 'Read and 'Write
Date: Mon, 2 Nov 2009 15:32:51 -0600
Organization: Jacob Sparre Andersen
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Date: 2009-11-02T15:32:51-06:00
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"Jeffrey R. Carter" <spam.jrcarter.not@spam.acm.org> wrote in message 
news:hcfdpo$p62$1@news.tornevall.net...
> Gautier write-only wrote:
>> On 30 Okt., 01:39, "Jeffrey R. Carter"
>> <spam.jrcarter....@spam.acm.org> wrote:
>>
>>> And if you overlay the Stream_Element_Array onto the Buffer, thus 
>>> eliminating
>>> the copying and the stream attribute operations?
>>
>> With an Unchecked_conversion ?
>
> No, that still does a copy.

It doesn't have to, there is a permission to avoid copying in 13.9(12). So 
it depends on what the compiler is able to do optimization-wise.

                                           Randy.