https://gcc.gnu.org/bugzilla/show_bug.cgi?id=89224
Andrew Pinski <pinskia at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |NEW Last reconfirmed| |2021-08-16 Ever confirmed|0 |1 --- Comment #2 from Andrew Pinski <pinskia at gcc dot gnu.org> --- And it was rejected correctly in GCC 6.4.0: <source>: In instantiation of 'void g(T&) [with T = const unsigned char]': <source>:8:9: required from here <source>:5:5: error: assignment of read-only reference 'x' x = 1; ~~^~~