How do I pass a hash to a function in Perl?

Question

I have a function that takes a variable and an associative array, but I can\'t seem to get them to pass right. I think this has something to do with function declarations, h

Answer 1

Alternatively:

sub PrintAA
{
    my $test       = shift;
    my %aa         = @_;
        print $test . "\n";
        foreach (keys %aa)
        {
                print $_ . " : " . $aa{$_} . "\n";
                $aa{$_} = $aa{$_} . "+";
        }
}

The thing you're fundamentally missing is that an associative array isn't a single argument (though an associative array reference is, as in Paul Tomblin's answer).