my %ref_hash = %{$ref};

When you do that you are creating a copy. Don't do that if you want to modify the arguments.

sub test {
    my ($ref) = @_;
    $ref->{'new'} = 'new_v';
    print join(",", keys (%$ref)),"\n";
}

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In reply to Re: passing hash ref to a function by hippo
in thread passing hash ref to a function by ovedpo15

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