Hi Monks-

I'm a little embarrassed to ask this question, as I feel I should know the answer - however, I haven't been able to come up with a good answer (by searching or thinking) for 2 days! Please help - my mind is going...

I want to declare a hash-of-hashes, where some of the elements point to each other. Is it possible to do it in a declaration? Here is some code that makes it happen outside the declaration.

Any help is much appreciated!

Thanks

-Craig 

use strict;
use warnings;

use Data::Dumper;

my %fields = (
    version1 => {
        1 => 'Field 1',
        2 => 'Field 2',
        3 => 'Field 3',
    },
    version2 => {
        1 => 'Field 1',
        2 => 'Field 2',
        3 => 'Field 3',
        4 => 'Field 4',
    },
    version3 => {
        1 => 'Field 1',
        2 => 'Field 2',
        3 => 'Field 3',
        4 => 'Field 4',
        5 => 'Field 5',
    },
    version4 => {
        # What if version4 is exactly the same as version3.
        # How do I just make version4 point to verson3?
    },
);

print STDERR "fields Dump1:\n", Dumper(\%fields), "\n";

$fields{version4} = $fields{version3};

print STDERR "fields Dump2:\n", Dumper(\%fields), "\n";

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In reply to Creating pointers in a HoH declaration by cmv

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