Try this instead 

my $atlas_copy = { %$atlas };

[download]
UPDATE: but a deep copy is the better choice here. I was assuming you were dealing with a simple hash structure and i failed to notice that you were copying to hash, not a hash ref. Nothing to see here ... move along. bad jeffa :)

jeffa

L-LL-L--L-LL-L--L-LL-L--
-R--R-RR-R--R-RR-R--R-RR
B--B--B--B--B--B--B--B--
H---H---H---H---H---H---
(the triplet paradiddle with high-hat)

In reply to Re: Local Copy of a member variable by jeffa
in thread Local Copy of a member variable by benrwebb

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