[libcxx-commits] [libcxx] [libc++] Allows any types of size 4 and 8 to use native platform ulock_wait (Proof of Concept) (PR #161086)

[A. Jiang via libcxx-commits]

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@@ -11,6 +11,10 @@
 
 #include <__atomic/support.h>
 #include <__config>
+#include <__type_traits/enable_if.h>
+#include <__type_traits/integral_constant.h>
+#include <__type_traits/is_standard_layout.h>
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frederick-vs-ja wrote:

Use of `is_standard_layout` looks incorrect to me. I guess we want object types without paddings, which is orthogonal to the standard-layout property.

https://github.com/llvm/llvm-project/pull/161086