[libcxx-commits] [libcxx] [libc++] Implement C++20 atomic_ref (PR #76647)

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huixie90 wrote:

Hello sorry for the delay. I have merged the atomic wait refactoring and hopefully the wait and notify functions can be reused now.  Could you please rebase and add the atomic_watiable_traits for your type ? You can check atomic_base as an example 

https://github.com/llvm/llvm-project/pull/76647