Note that just copying the hash doesn't work for data structure you have used. Values of hash are hashrefs themselves so new copy will reuse parts of copied data structure. Thus changes in copy of data structure affect original data structure.

--
Ilya Martynov (http://martynov.org/)

Yes, I know. I have to iterate over each hash and make copies. A simple $ref1 = $ref is not enough.
Thanks.

When I want to do deep cloning I just use dclone from Storable. Works for data structures of any complexity. There is also exist module Clone.

--
Ilya Martynov (http://martynov.org/)