This question has to do with the ref() built-in function and its return values.
I see that one possible return value is 'REF', which I am inferring to mean that the argument given to ref() is a reference to a scalar which is itself a reference. However, I have not seen this documented; could someone please (1) confirm or refute this (2) clarify if necessary and (3) point me to the relevant documentation. (The perlfunc page for ref() just lists possible return values, and not their meanings.)
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