[libcxx-commits] [libcxx] [libcxxabi] [libc++] [libc++abi] Initialize exception directly in make_exception_ptr if __cxa_init_primary_exception is available in ABI-library (PR #65534)

[via libcxx-commits]

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@@ -293,4 +304,11 @@
 #   define _LIBCPP_AVAILABILITY_THROW_BAD_VARIANT_ACCESS  _LIBCPP_AVAILABILITY_BAD_VARIANT_ACCESS
 #endif
 
+// Define availability attributes that depend on both 
+// _LIBCPP_HAS_NO_EXCEPTIONS and _LIBCPP_HAS_NO_RTTI.
+#if defined(_LIBCPP_HAS_NO_EXCEPTIONS) || defined(_LIBCPP_HAS_NO_RTTI)
+#   undef _LIBCPP_AVAILABILITY_HAS_INIT_PRIMARY_EXCEPTION
+#   define _LIBCPP_AVAILABILITY_HAS_INIT_PRIMARY_EXCEPTION 0
+#endif
+
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itrofimow wrote:

The idea is to simplify the process for vendors: no matter how they define `_LIBCPP_AVAILABILITY_HAS_INIT_PRIMARY_EXCEPTION` it just doesn't work without `RTTI` (on an unrelated note i believe it actually works with `NO_EXCEPTIONS`).

https://github.com/llvm/llvm-project/pull/65534