From mboxrd@z Thu Jan  1 00:00:00 1970
X-Spam-Checker-Version: SpamAssassin 3.4.4 (2020-01-24) on polar.synack.me
X-Spam-Level: 
X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham
	autolearn_force=no version=3.4.4
X-Google-Thread: a07f3367d7,aa14979d20ba3045
X-Google-Attributes: gida07f3367d7,public,usenet
X-Google-NewGroupId: yes
X-Google-Language: ENGLISH,ASCII-7-bit
Path: 
 g2news2.google.com!news1.google.com!news.glorb.com!feeder.erje.net!news2.arglkargh.de!news.n-ix.net!news.bawue.net!not-for-mail
From: Philipp Riegger <news@anderedomain.de>
Newsgroups: comp.lang.ada
Subject: Re: Allocation question
Date: Mon, 11 May 2009 12:57:35 +0200
Organization: bawue.net - http://www.bawue.net
Message-ID: <20090511125735.1edd4b47@troy.s.riegger.name>
References: <4a07fc7a$0$2855$ba620e4c@news.skynet.be>
NNTP-Posting-Host: s_riegger_name.tunnel.bawue.de
Mime-Version: 1.0
Content-Type: text/plain; charset=US-ASCII
Content-Transfer-Encoding: 7bit
X-Trace: news.bawue.net 1242039532 8008 86.111.250.18 (11 May 2009 10:58:52
 GMT)
X-Complaints-To: abuse@news.bawue.net
NNTP-Posting-Date: Mon, 11 May 2009 10:58:52 +0000 (UTC)
X-Newsreader: Claws Mail 3.7.1 (GTK+ 2.16.1; i686-pc-linux-gnu)
Xref: g2news2.google.com comp.lang.ada:5756
Date: 2009-05-11T12:57:35+02:00
List-Id: <comp.lang.ada>

On Mon, 11 May 2009 12:23:11 +0200
Olivier Scalbert <olivier.scalbert@algosyn.com> wrote:

>      type Color_T is record
>          Red:   Integer;
>          Green: Integer;
>          Blue:  Integer;
>      end record;

You can force a Size of 2 bit for this type by "for Color_T'Size use
2;".

>      type Image_T is array(Positive range <>, Positive range <>) of
> Color_T;

"Pragma Pack (Image_T);" tells the compiler not to align the array to
words (4 byte, i guess) but to use the 2 bit for each Color_T. Slower, but decreases the stack usage.

Philipp