As long as no anonymous arrays are destroyed and defined during your examination there shouldn't be a risk of collisions of equally stringified refs.

I assume you know that the stringification of a reference is a one-way-function ... if you ever need to know the corresponding ref you should consider, writing  $hash{$ref} = $ref; instead.

(or using something like Tie::RefHash)

Cheers Rolf

In reply to Re: Reference as a hash key by LanX
in thread Reference as a hash key by Anonymous Monk

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