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From: Keith Thompson <Keith.S.Thompson+u@gmail.com>
Newsgroups: comp.lang.c
Subject: Re: C23 thoughts and opinions
Date: Thu, 23 May 2024 13:06:39 -0700
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David Brown <david.brown@hesbynett.no> writes:
> On 23/05/2024 14:11, bart wrote:
[...]
>> 'embed' was discussed a few months ago. I disagreed with the poor
>> way it was to be implemented: 'embed' notionally generates a list of 
>> comma-separated numbers as tokens, where you have to take care of
>> any trailing zero yourself if needed. It would also be hopelessly 
>> inefficient if actually implemented like that.
>
> Fortunately, it is /not/ actually implemented like that - it is only
> implemented "as if" it were like that.  Real prototype implementations 
> (for gcc and clang - I don't know about other tools) are extremely
> efficient at handling #embed.  And the comma-separated numbers can be 
> more flexible in less common use-cases.
[...]

I'm aware of a proposed implementation for clang:

https://github.com/llvm/llvm-project/pull/68620
https://github.com/ThePhD/llvm-project

I'm currently cloning the git repo, with the aim of building it so I can
try it out and test some corner cases.  It will take a while.

I'm not aware of any prototype implementation for gcc.  If you are, I'd
be very interested in trying it out.

(And thanks for starting this thread!)

-- 
Keith Thompson (The_Other_Keith) Keith.S.Thompson+u@gmail.com
void Void(void) { Void(); } /* The recursive call of the void */