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=unavailable autolearn_force=no version=3.4.4
Path: 
 eternal-september.org!reader01.eternal-september.org!reader02.eternal-september.org!feeder.eternal-september.org!aioe.org!.POSTED!not-for-mail
From: "Dmitry A. Kazakov" <mailbox@dmitry-kazakov.de>
Newsgroups: comp.lang.ada
Subject: Re: Examining individual bytes of an integer
Date: Mon, 15 Oct 2018 09:42:19 +0200
Organization: Aioe.org NNTP Server
Message-ID: <pq1gcq$vpq$1@gioia.aioe.org>
References: <9d90fa3e-f800-4086-bf97-a65474a8140a@googlegroups.com>
NNTP-Posting-Host: MyFhHs417jM9AgzRpXn7yg.user.gioia.aioe.org
Mime-Version: 1.0
Content-Type: text/plain; charset=utf-8; format=flowed
Content-Transfer-Encoding: 8bit
X-Complaints-To: abuse@aioe.org
User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:52.0) Gecko/20100101
 Thunderbird/52.9.1
X-Notice: Filtered by postfilter v. 0.8.3
Content-Language: en-US
Xref: reader02.eternal-september.org comp.lang.ada:54577
Date: 2018-10-15T09:42:19+02:00
List-Id: <comp.lang.ada>

On 2018-10-14 21:15, Henrik Härkönen wrote:
> I'd like to examine individual bytes of larger (in bit size) integer type. In C would probably move byte pointer etc. Also I'd need to have a way to construct the integer from individual bytes.
> 
> Would this be "the Ada-way", the Unchecked_Conversion?

I would say no. I am customary using arithmetic operations in order to 
serialize and de-serialize integers to/from bit, octet, whatever medium 
stream. It is the only way which is 100% safe and portable.

As an example, here is stream I/O of signed integers using chain code 
representation:

    http://www.dmitry-kazakov.de/ada/strings_edit.htm#10.1

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