[Bug libstdc++/109049] std::declval gives wrong result for cv void

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=109049

--- Comment #1 from Jonathan Wakely <redi at gcc dot gnu.org> ---
Who cares? Taking the address of std::declval is forbidden, and you can't call
that specialization anyway.