From mboxrd@z Thu Jan  1 00:00:00 1970
X-Spam-Checker-Version: SpamAssassin 3.4.5-pre1 (2020-06-20) on
	ip-172-31-74-118.ec2.internal
X-Spam-Level: 
X-Spam-Status: No, score=-1.9 required=3.0 tests=BAYES_00 autolearn=ham
	autolearn_force=no version=3.4.5-pre1
Path: eternal-september.org!reader02.eternal-september.org!news.szaf.org!news.karotte.org!news2.arglkargh.de!news.mixmin.net!aioe.org!JUN8/iIzeA71QWaIWFKODA.user.gioia.aioe.org.POSTED!not-for-mail
From: "Luke A. Guest" <laguest@archeia.com>
Newsgroups: comp.lang.ada
Subject: Re: Ada and Unicode
Date: Mon, 19 Apr 2021 13:13:17 +0100
Organization: Aioe.org NNTP Server
Message-ID: <s5js4k$dnb$1@gioia.aioe.org>
References: <607b5b20$0$27442$426a74cc@news.free.fr>
 <86mttuk5f0.fsf@stephe-leake.org> <s5jr59$1tkq$1@gioia.aioe.org>
NNTP-Posting-Host: JUN8/iIzeA71QWaIWFKODA.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 (X11; Linux x86_64; rv:78.0) Gecko/20100101
 Thunderbird/78.9.1
X-Notice: Filtered by postfilter v. 0.9.2
Content-Language: en-GB
Xref: reader02.eternal-september.org comp.lang.ada:61839
List-Id: <comp.lang.ada>


On 19/04/2021 12:56, Luke A. Guest wrote:

> 
> package Ada.Strings.UTF_Encoding
>    ...
>    subtype UTF_8_String is String;
>    ...
> end Ada.Strings.UTF_Encoding;
> 
> Was absolutely and totally wrong.

...and, before someone comes back with "but all the upper half of latin 
1" are represented and have the same values." Yes, they do, in Code 
points which is a 32 bit number. In UTF-8 they are encoded as 2 octets!