Comment by uecker

In principle, the are supported already with gcc 12 or even earlier, but this is evolving. https://godbolt.org/z/88qv3jjTM

I use c23 features but also vm-types for bounds checking which are older (i need the statement expression extension though): https://godbolt.org/z/T96T89Yhc

yes, with us I mean wg14 (or just me).