On Sat, 2 May 2026, 12:19 Muneem via Std-Proposals, <
std-proposals_at_[hidden]> wrote:

> Hi there, folks!
> I had this issue while working on a stateful metaprogramming technique
> (almost complete):
> "is_scoped_enum_v is not a member of std"
> https://godbolt.org/z/jqzdf4rvq
> as you can see, I am using c++23
>

No you aren't.

Your GCC trunk window is using c++20 and that's why you get that error.

This mailing list is not for help using GCC.


and according to:
> https://en.cppreference.com/cpp/types/is_scoped_enum
> it says:
>
> template< class T >struct is_scoped_enum;
>
> (since C++23)
> yet I am getting "a not found error". Any discussion on the potential
> issues would be appreciated and even more so if such discussion targets
> other issues in my technique/approach. I personally believe that this error
> is caused by some implementation issues, but what made me discuss this over
> here is that I face this issue in MSCV and in godbolt.
> --
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