I notice that core::cmp::Ordering examples refer to std::cmp::Ordering.
Is this intentional? If so, why? Or is it a documentation bug?
This is sort-of intentional necessary evil, due to how core and std are implemented.
The actual type and documentation lives in core, and is only re-exported as-is by std. However, very few projects actually use core directly (it's for no-std crates). Most users will read these docs through docs of std, and it'd be equally confusing the other way if the std docs referred to core types.
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