[Bug c++/80456] calling constexpr member function from volatile-qualified member function: error: ‘this’ is not a constant expression

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=80456

--- Comment #6 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Oops, sorry Marek, seems you've said all that already, ignore my comment... :(.