[libc-commits] [libc] [libc][CPP] add cpp::start_lifetime_as (PR #193326)

[Michael Jones via libc-commits]

https://github.com/michaelrj-google commented:

Okay, having reviewed this it seems like there isn't a good way to make this work right now. It's also not implemented in libc++ yet. Given that would it make more sense to land a builtin in clang for use here before landing this PR?

https://github.com/llvm/llvm-project/pull/193326