[Bug c++/109763] GCC accepts invalid program involving decltype(classtype::memberfunction) when used with concepts

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=109763

--- Comment #2 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
I meant to write:
Concepts are not supposed to error out if there was an error in substitution.
So this is all by design of the language.