As noted above, you can put references in hash keys, but you cannot get them back as refs, because hash keys in normal hashes are always strings.

I believe you might want Tie::RefHash.

edit: though I've never had to use it - I generally find using an extra hash or array easier to understand.

Joost.

"What should it profit a man, if he should win a flame war, yet lose his cool?"

In reply to Re: Problem using object references as hash keys by Joost
in thread Problem using object references as hash keys by jlf

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