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From: "Dmitry A. Kazakov" <mailbox@dmitry-kazakov.de>
Newsgroups: comp.lang.ada
Subject: Re: In precision typing we trust
Date: Sun, 31 Aug 2025 10:56:08 +0200
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On 2025-08-31 00:29, Lawrence D’Oliveiro wrote:
> 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?

Are you aware that there may exist more than one program? (:-))

>> You confuse errors with exceptional states.
> 
> Exceptions are a great way to handle a lot of error cases.

Bugs are handled by text editor. Exceptions are a program control flow 
mechanism.

>> 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.

None of which is a correctness check.

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