$ perl -Mstrict -Mwarnings -MData::Dumper -E '
> my @names = qw{ A B C D };
> my %order;
> foreach my $name ( @names )
> {
>     $order{ $name } = $name;
> }
> print Data::Dumper->Dumpxs( [ \ %order ], [ qw{ *order } ] );'
%order = (
           'A' => 'A',
           'D' => 'D',
           'C' => 'C',
           'B' => 'B'
         );
$