On Wed, Nov 23, 2022 at 4:33 PM Jₑₙₛ Gustedt <jens.gustedt@inria.fr> wrote:
>
> 罗勇刚,
>
> on Wed, 23 Nov 2022 16:20:39 +0800 you (罗勇刚(Yonggang Luo)
> <luoyonggang@gmail.com>) wrote:
>
> > It's not because the compiler, it's because:
> > * when compiling C code, __cplusplus is not defined,
> > * when compiling C++ code, __STDC_VERSION__ is not defined
>
> sure
>
> As I said, this is a policy decision of the corresponding C library
> implementation. Whatever musl's policy here is, they will use
> that. (If even in that case, because changes to `NULL` are not
> mandatory.)

I am not worried about musl, just worried that someone else copied the code
from https://gustedt.gitlabpages.inria.fr/c23-library/
and leading to -Wundef, as c23 won't be usable in near future by standard
library, and people want c23 will polyfill it and reference
 https://gustedt.gitlabpages.inria.fr/c23-library/, that's what I am
worried.


>
> Thanks
> Jₑₙₛ
>
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--
         此致
礼
罗勇刚
Yours
    sincerely,
Yonggang Luo