Brother Monks, I've Super Searched, I've Googled, and I've played with the smallest possible program (below) I could build, but I haven't been able to find how to deterime the size of a reference to an array (not a hash) 
use strict;

my @Header =
  (
   'Record Type               ',
   'File Generation Date/Time ',
   'Origin                    ',
  );

my @New;
my @Trailer;

my %Classes = (
        'NW' => { labels => \@New },
        'HD' => { labels => \@Header },
        'TR' => { labels => \@Trailer },
       );

my $type = 'HD';
Display( $Classes{ $type }->{labels} );

sub Display
  {
    my ( $Labels ) = @_;

    my $count = scalar( $Labels ); ### I know this doesn't work.

    print sprintf( "Display: %d '%s'\n", $count, $Labels->[1] );
  }

[download]
I realize if I was using an array (rather than an array reference) I could use $#name or scalar( @Name ).

Unfortunately, I need to use the contents of @Header sequentially, so using a hash isn't an option.

Thank you for your help in advance.

In reply to How do you determine the size of array reference? by apl

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