[libcxx-commits] [libcxx] [libc++] Implement LWG4072: std::optional comparisons: constrain harder (PR #209968)

[A. Jiang via libcxx-commits]

frederick-vs-ja wrote:

I'd ask @jwakely what was wrong when initially P2944R3 in libc++. Was there actually infinite meta-recursion without LWG4072?

https://github.com/llvm/llvm-project/pull/209968