Re: Matching elements inside two array

[hdb]

In cases like this I prefer to first classify each label by setting a flag in which array it is present. I do this by using bits (1 for @input_array, 2 for @input_A, 4 for @input_B). In the second step the labels are processed based on their flags.

use strict;
use warnings;

my @input_array = qw( N1 N2 N3  N6  N7      );
my @input_A     = qw( N1 N3 N11 N11 N10 N16 );
my @input_B     = qw( N3 N6 N2  N7  N16 N19 );

my %flags;
$flags{$_} |= 1 for @input_array;
$flags{$_} |= 2 for @input_A;
$flags{$_} |= 4 for @input_B;

my %primaryCCO;
for (keys %flags) {
    next unless $flags{$_} & 1;
    print "$_: only 1 input is PI\n" if $flags{$_} == 3;
    print "$_: this is a wire\n" if $flags{$_} == 5;
    if( $flags{$_} == 7 ) {
        $primaryCCO{$_} = [1,1];
        print "$_: CCO = ( @{$primaryCCO{$_}} )\n";
    }
}

Remark: I have implied the desired logic from Athanasius output rather than studying your code, so I hope I got it right...

[hdb]

And a version based on a dispatch table (which is definitely overkill in a simple situation like this):

use strict;
use warnings;

my @input_array = qw( N1 N2 N3  N6  N7      );
my @input_A     = qw( N1 N3 N11 N11 N10 N16 );
my @input_B     = qw( N3 N6 N2  N7  N16 N19 );

my %flags;
$flags{$_} |= 1 for @input_array;
$flags{$_} |= 2 for @input_A;
$flags{$_} |= 4 for @input_B;

my %primaryCCO;
my %dispatch = (
    3 => sub { my $label = shift; print "$label: only 1 input is PI\n"
+ }, 
    5 => sub { my $label = shift; print "$label: this is a wire\n" },
    7 => sub { 
                my $label = shift;
                $primaryCCO{$label} = [1,1];
                print "$label: CCO = ( @{$primaryCCO{$label}} )\n"; 
            },
);

exists $dispatch{ $flags{$_}} and $dispatch{ $flags{$_} }->($_) for ke
+ys %flags;