[Bug tree-optimization/116481] [12/13/14/15 Regression] `arrays of functions are not meaningful` error message happens with -W -Wall -O2 even though there are no arrays of function types used

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=116481

--- Comment #6 from Richard Biener <rguenth at gcc dot gnu.org> ---
For portability you likely want to convert the function pointer to uintptr_t
and only that to char */long *.  That might also avoid GCCs diagnostic.