[Bug c++/55203] No unused warning for variables of non-trivial types

[redi at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=55203

--- Comment #12 from Jonathan Wakely <redi at gcc dot gnu.org> ---
(In reply to Sergio Martins from comment #11)
> Did the patch for [warn_unused] get in ?

Yes: https://gcc.gnu.org/onlinedocs/gcc/C_002b_002b-Attributes.html