Yes, "$ref" is always the same if $ref= \@array; for the same array. Just go ahead and use it as the key in a hash. This is how Tie::RefHash is able to work.

You can even use $hash{0+$ref} which is probably faster.

                - tye

In reply to Re: Marking an array as already seen (yes) by tye
in thread Marking an array as already seen by John M. Dlugosz

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