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

[Damien L-G via libcxx-commits]

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@@ -27,6 +30,21 @@
 
 _LIBCPP_BEGIN_NAMESPACE_STD
 
+template <class _Tp>
+struct __is_cxx_atomic_impl : false_type {};
+
+template <class _Tp>
+struct __is_cxx_atomic_impl<__cxx_atomic_impl<_Tp> > : true_type {};
+
+template <class _Tp>
+_LIBCPP_HIDE_FROM_ABI __enable_if_t<!__is_cxx_atomic_impl<__remove_cv_t<_Tp> >::value, _Tp>
+__cxx_atomic_load(_Tp* __ptr, memory_order __order) _NOEXCEPT {
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dalg24 wrote:

This is a hack to serve as a base for discussion of how we actually want to handle notify/wait.

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