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

[Nikolas Klauser via libcxx-commits]

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@@ -1255,9 +1255,9 @@ extern template class _LIBCPP_EXTERN_TEMPLATE_TYPE_VIS codecvt_byname<char, char
 #if _LIBCPP_HAS_WIDE_CHARACTERS
 extern template class _LIBCPP_EXTERN_TEMPLATE_TYPE_VIS codecvt_byname<wchar_t, char, mbstate_t>;
 #endif
-extern template class _LIBCPP_DEPRECATED_IN_CXX20
+extern template class __attribute__((__libcpp_deprecated_in_cxx20()))
 _LIBCPP_EXTERN_TEMPLATE_TYPE_VIS codecvt_byname<char16_t, char, mbstate_t>; // deprecated in C++20
-extern template class _LIBCPP_DEPRECATED_IN_CXX20
+extern template class __attribute__((__libcpp_deprecated_in_cxx20()))
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philnik777 wrote:

Note that I had to use `__attribute__` here, since the `[[]]` version isn't allowed anywhere. This is the only place though.

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