Consider:

use strict;
use warnings;
use Data::Dump::Streamer;

my %devinfo = (1 => {a => 'apple', b => 'orange'});
my %datahash = (devinfo => {});

%{$datahash{"devinfo"}} = %devinfo;
Dump (\%devinfo, \%datahash, $datahash{devinfo});

[download]

Prints:

$HASH1 = { 1 => {
           a => 'apple',
           b => 'orange'
         } };
$HASH2 = { devinfo => 'A: $HASH3' };
$HASH3 = { 1 => $HASH1->{1} };
alias_hv(%$HASH2, 'devinfo', $HASH3);

[download]

The copy is a shallow copy. If any of the values of %devinfo are references then the copy simply duplicates the reference. You may find Storable's dclone helps if you are looking for a clone of the data.

DWIM is Perl's answer to Gödel

In reply to Re^3: Massive Perl Memory Leak by GrandFather
in thread Massive Perl Memory Leak by wagnerc

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