[Bug c++/115361] "possibly dangling reference to a temporary" when object is_empty

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=115361

--- Comment #2 from Marek Polacek <mpolacek at gcc dot gnu.org> ---
I've moved -Wdangling-reference to -Wextra in r15-2703-g5ebfaf2d4994c1