[Bug c/70753] missing diagnostic in C11 mode: sizeof, _Alignof of function type

[mpolacek at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=70753

--- Comment #3 from Marek Polacek <mpolacek at gcc dot gnu.org> ---
But you get the warning with -Wpedantic, right?