Hippo! Thank you so much for that link on deep-copy mechanics. That's exactly what I needed :)

Fixed code

#!/usr/bin/perl
use strict;


my $Action;

my $piece;

   $piece->{this} = 123;
   $piece->{that} = 'some text';

   foreach my $other (111...113){
           my $thispiece = {%$piece};  # create a deep copy
           $thispiece->{theother} = $other;
           push(@{$Action}, $thispiece);
   }

   use Data::Dumper;
   print Dumper($Action);

[download]

And now the output looks like I expected it to:

$VAR1 = [
          {
            'that' => 'some text',
            'theother' => 111,
            'this' => 123
          },
          {
            'theother' => 112,
            'that' => 'some text',
            'this' => 123
          },
          {
            'this' => 123,
            'theother' => 113,
            'that' => 'some text'
          }
        ];

[download]

Hippo FTW!

oakbox

In reply to Re^2: Unwanted cloning of array elements by oakbox
in thread Unwanted cloning of array elements by oakbox

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