From mboxrd@z Thu Jan  1 00:00:00 1970
X-Spam-Checker-Version: SpamAssassin 4.0.1 (2024-03-25) on
	ip-172-31-91-241.ec2.internal
X-Spam-Level: 
X-Spam-Status: No, score=0.0 required=3.0 tests=none autolearn=ham
	autolearn_force=no version=4.0.1
Path: nntp.eternal-september.org!eternal-september.org!feeder.eternal-september.org!.POSTED!not-for-mail
From: Lawrence =?iso-8859-13?q?D=FFOliveiro?= <ldo@nz.invalid>
Newsgroups: comp.lang.ada
Subject: Re: In precision typing we trust
Date: Sat, 30 Aug 2025 22:29:49 -0000 (UTC)
Organization: A noiseless patient Spider
Message-ID: <108vu0t$2sngv$4@dont-email.me>
References: <107uv9g$3019a$1@dont-email.me> <107v1ji$303of$1@dont-email.me>
	<336fbb5f-a279-ea8e-67fd-f62bb00d6a89@irrt.De>
	<107vfb9$34cpj$1@dont-email.me> <mgmhbtF8u6bU1@mid.individual.net>
	<10855lq$gj8l$1@dont-email.me> <1088h1a$19635$1@dont-email.me>
	<1089p1i$1ig1d$1@dont-email.me> <108aq2p$1qo9o$1@dont-email.me>
	<b7a32260-7c15-7b63-6d39-0e5e809c7201@insomnia247.nl>
	<108dh2l$2f5h3$1@dont-email.me> <108ej11$2mbr8$1@dont-email.me>
	<108g1fv$32gqg$3@dont-email.me> <108h6b7$3a75k$3@dont-email.me>
	<108ijfj$3lihe$4@dont-email.me> <108jqcg$3ti12$2@dont-email.me>
	<87cy8im3kc.fsf@nightsong.com> <108kp8k$5pr0$1@dont-email.me>
	<878qj5my4l.fsf@nightsong.com> <108mde1$gv59$2@dont-email.me>
	<108o3ke$vok4$8@dont-email.me> <108p54d$16qn1$4@dont-email.me>
	<108r8eq$1osg9$5@dont-email.me> <108rma6$1rkon$1@dont-email.me>
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
Injection-Date: Sat, 30 Aug 2025 22:29:49 +0000 (UTC)
Injection-Info: dont-email.me; posting-host="c0b3afac58395fcfe10cd8a8a01c5d34";
	logging-data="3038751"; mail-complaints-to="abuse@eternal-september.org";	posting-account="U2FsdGVkX1+vcwJHbaImQHxNb3Lg/Bg1"
User-Agent: Pan/0.163 (Kryvyi Rih)
Cancel-Lock: sha1:QH2blIpaXB3K7EP5ttVFOK71fKU=
Xref: feeder.eternal-september.org comp.lang.ada:67003
List-Id: <comp.lang.ada>

On Fri, 29 Aug 2025 09:53:42 +0200, Dmitry A. Kazakov wrote:

> On 2025-08-29 05:57, Lawrence D’Oliveiro wrote:
> 
>> But the bug might be at the other end of a comms connection in somebody
>> else’s code, not at my end.
> 
> That is not an error in your code.

You were the one saying “errors are bugs”. Not changing your mind now, are 
you?

> You confuse errors with exceptional states.

Exceptions are a great way to handle a lot of error cases.

> No program can check correctness of itself.

Not sure what this is supposed to be relevant to, but surely a language as 
heavily used in safety-critical applications as Ada would typically see a 
lot of cross-checking happening in real-world programs.