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From: Tim Rentsch <tr.17687@z991.linuxsc.com>
Newsgroups: comp.lang.c
Subject: Re: Help requested with P99-based macro to create Wayland listeners
Date: Wed, 10 Apr 2024 09:05:48 -0700
Organization: A noiseless patient Spider
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James Kuyper <jameskuyper@alumni.caltech.edu> writes:

> On 4/8/24 20:36, Blue-Maned_Hawk wrote:
>
>> This macro doesn't work and i don't know why.  I've tried multiple
>> different things to try to delay the expansion of _0MAKE_LISTENER and none
>> of them have worked.  I don't know if there's a more idiomatic way to do
>> this.  I've tried looking at the output from putting it through ?cpp?  and
>> that didn't work because it errored out before i could see what it
>> expanded to.
>>
>> #define MAKE_LISTENER(object_type, ...) static const struct\
>> object_type##_listener object_type##_listener = { P99_SEQ(\
>
> This isn't a C problem, or at least,not entirely a C problem.  I'd
> thought that the P99 in your subject line might be a typo for C99, but I
> have no idea what P99_SEQ is.  Wikipedia knows 9 different meanings for
> P99.  [...]

Someone might tell James that it is entirely a C problem for
anyone with enough sense to search for P99_SEQ rather than
just P99.