[libcxx-commits] [libcxx] [libc++][RFC] Refactor attributes to [[attribute_macro]] (PR #130099)

[Mark de Wever via libcxx-commits]

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@@ -467,13 +467,13 @@ _LIBCPP_HIDE_FROM_ABI bool atomic_is_lock_free(const atomic<_Tp>* __o) _NOEXCEPT
 // atomic_init
 
 template <class _Tp>
-_LIBCPP_DEPRECATED_IN_CXX20 _LIBCPP_HIDE_FROM_ABI void
+[[__libcpp_deprecated_in_cxx20()]] _LIBCPP_HIDE_FROM_ABI void
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mordante wrote:

I think it's good to be able to provide a message. However there is not always a replacement in the Standard. So I rather have two macros one for that provides a message and one that doesn't. That avoids the `()` which looks bad to me.

https://github.com/llvm/llvm-project/pull/130099