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From: Lawrence D'Oliveiro <ldo@nz.invalid>
Newsgroups: comp.lang.c
Subject: Re: C23 thoughts and opinions
Date: Sat, 15 Jun 2024 22:42:46 -0000 (UTC)
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On Fri, 14 Jun 2024 03:13:32 -0500, BGB wrote:

> On 6/14/2024 1:53 AM, Bonita Montero wrote:
>>
>> Am 13.06.2024 um 21:07 schrieb BGB:
>>>
>>> One possible justification (albeit a weak one) is that if one
>>> recompiles the program with optimizations turned on, in many cases
>>> this may subtly change the behavior of the program (particularly in
>>> relation to things like the contents of uninitialized variables and
>>> dangling pointers, etc...). ...
>> 
>> If you rely on that you're misusing the language anyway.
>> 
> It is a poor practice, but seemingly does occur in the wild (intentional
> or not).

It seems to me that kind of thing does tend to get flushed out of open-
source code. Because such code is often compiled with different compilers, 
on different architectures, using different tool chains etc. And 
assumptions like these tend not to survive such treatment.