[libcxx-commits] [libcxx] [libc++] Implement P2830R10: Standardized Constexpr Type Ordering (PR #216616)

[Hristo Hristov via libcxx-commits]

================
@@ -161,6 +161,10 @@ namespace std {
 #    include <__compare/weak_order.h>
 #  endif // _LIBCPP_STD_VER >= 20
 
+#  if _LIBCPP_STD_VER >= 26 && __has_builtin(__builtin_type_order)
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Zingam wrote:

```suggestion
#  if _LIBCPP_STD_VER >= 26
```
This looks redundant. You check for the built-in in the granularized header.
I assume because this could be a list of multiple headers guarded here.

https://github.com/llvm/llvm-project/pull/216616