jfb added inline comments. ================ Comment at: include/atomic:900 @@ +899,3 @@ +# if defined(_LIBCPP_LOCK_FREE_IS_SIZE_BASED) + static _LIBCPP_CONSTEXPR bool is_always_lock_free = __libcpp_always_lock_free<sizeof(_Tp)>; +# else ---------------- Actually, this should be based on `sizeof(__a_)` and *not* `sizeof(_Tp)`.
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