[Bug c/109214] extension to C language allowing void * to be cast to function pointer should be documented

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=109214

--- Comment #4 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
hmm:
https://thephd.dev/_vendor/future_cxx/papers/C%20-%20_Any_func.html#design.voidptr