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Re: Local Copy of a member variable

by TedYoung (Deacon)
on Oct 20, 2005 at 17:09 UTC ( #501739=note: print w/replies, xml ) Need Help??

in reply to Local Copy of a member variable

If it is a simple hash then changes to %atlas won't be seen in $self->{atlas}. Now, if the values of $self->{atlas} contain references (i.e. other hashes, arrays, object, etc) then changes to those will be seen. If you need to make a deep copy (clone) of a complex datastructure, you could use dclone method is Storable.

use Storable; my $aref = dclone($self->{atlas}); my %atlas = %$aref;

Ted Young

($$<<$$=>$$<=>$$<=$$>>$$) always returns 1. :-)

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Re^2: Local Copy of a member variable
by holli (Monsignor) on Oct 20, 2005 at 17:52 UTC
    From the docs of Storable:
    There is a Clone module available on CPAN which implements deep cloning natively, i.e. without freezing to memory and thawing the result.
    So I'd recomment Clone or Scalar::Util::Clone. There is also Clone::Any which is an interface for the existing clonecapable modules.

    Of course, Storable has the advantage that you can save your structures to disk (including code references).

    holli, /regexed monk/

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