By saying,     my %h_ref = %{+shift}; in the sub, you make a copy of the hash which all your work goes into. Instead, 

    my $h_ref = shift;
    # ...
    $h_ref->{'one'}= 'thing_' . $tail;
    # etc

[download]
That works on the original external hash.

After Compline,
Zaxo

In reply to Re: Passing hashes by reference by Zaxo
in thread Passing hashes by reference by wolis

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