[Bug preprocessor/127491] Variadic macro documentation incorrectly says , ## __VA_ARGS__ removes the comma for an empty argument

[pinskia at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=127491

Drea Pinski <pinskia at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |WAITING
     Ever confirmed|0                           |1
   Last reconfirmed|                            |2026-09-19

--- Comment #1 from Drea Pinski <pinskia at gcc dot gnu.org> ---

Hmm from https://gcc.gnu.org/onlinedocs/gcc-16.2.0/cpp/Variadic-Macros.html :

"This does not happen if you pass an empty argument, nor does it happen if the
token preceding ‘##’ is anything other than a comma."

I am trying to understand what is missing here.  Because the documentation is
clear on what it should do.