[libcxx-commits] [libcxx] [libc++][ranges][abi-break] Fix `movable_box` overwriting memory of data that lives in the tail padding (PR #71314)

[Louis Dionne via libcxx-commits]

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@@ -200,6 +200,18 @@
 #    define _LIBCPP_ABI_BAD_FUNCTION_CALL_KEY_FUNCTION
 #  endif
 
+#  ifndef _LIBCPP_NO_ABI_TAG
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ldionne wrote:

`_LIBCPP_NO_ABI_TAG` is used specifically for disabling the ODR-related ABI tag we use. I wouldn't check it here, since the purpose is somewhat different.

https://github.com/llvm/llvm-project/pull/71314