[libcxx-commits] [libcxx] [libc++] P3379R1: Constrain `std::expected` equality operators (PR #117664)

[A. Jiang via libcxx-commits]

frederick-vs-ja wrote:

> > Should we backport this to C++23? If so, perhaps we should also backport the constraints introduced by [P2944R3](https://wg21.link/p2944r3) to old modes.
> 
> @frederick-vs-ja Do you mean the second part of the paper regarding the constrained equality operators which is not yet implemented?

Yes. I think these changes should be handled consistently.

https://github.com/llvm/llvm-project/pull/117664