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From: David Brown <david.brown@hesbynett.no>
Newsgroups: comp.lang.c
Subject: Re: "A diagram of C23 basic types"
Date: Thu, 3 Apr 2025 09:57:51 +0200
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On 03/04/2025 02:10, bart wrote:
> On 02/04/2025 17:20, Scott Lurndal wrote:
>> Muttley@dastardlyhq.com writes:
>>> On Wed, 2 Apr 2025 16:33:46 +0100
>>> bart <bc@freeuk.com> gabbled:
>>>> On 02/04/2025 16:12, Muttley@DastardlyHQ.org wrote:
>>>>> Meh.
>>>>
>>>> What's the problem with it? Here, tell me at a glance the magnitude of
>>>> this number:
>>>>
>>>>      10000000000
>>>
>>> And how often do you hard code values that large into a program? Almost
>>> never I imagine unless its some hex value to set flags in a word.
>>
>> Every day, several times a day. 16 hex digit constants are very
>> common in my work.  The digit separator really helps with readability,
>> although I would have preferred '_' over "'".
> 
> Oh, I thought C23 used '_', since Python uses that. I prefer single 
> quote as that is not shifted on my keyboard. (My language projects just 
> allow both!)

C++ uses single quotes - it is much more natural for C to copy C++ than 
to copy Python.

> 
> That fact that it is not widespread is a problem however, so I can't use 
> either without restricting the compilers that can be used.
> 
> For example gcc 14.x on Windows accepts it with -std=c23 only; gcc on 
> WSL doesn't; tcc doesn't.
> 

Surprisingly enough, this new C23 feature is only available when using 
C23 or later.