Some further optree inspection suggests you are right; point taken. The point that, for those who care, scalar @_ compiles to 3 fewer ops than $#_ + 1 still stands though.

Makeshifts last the longest.

In reply to Re^4: Timing of Array-Size Determination Methods (UNOPs) by Aristotle
in thread Timing of Array-Size Determination Methods by Itatsumaki

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