I have an array that will be tested. In the example code below, @true should come out as 'true' and @false should come out as 'false';

A tested array will test true if elements in its list exist it both the @p_types and @c_types arrays.

If the tested array only contains elements from one of the lists and not the other, then it's false.

I'be been trying to do this elgantly for several hours with grep but can't quite get it. I'm just having brain block, I'm even embarassed to post this under my name. How do I get this code to work properly and look elegant?

True Code

#!/usr/bin/perl -w

use strict;

my @p_types = qw( pam php kph );
my @c_types = qw( cam c1 c2 );

my @true =  qw( pam c2 );  #  Gets true
my @false = qw( cam c2 );   #  Gets false



my @p_type = grep $_, @p_types foreach @true;
my @c_type = grep $_, @c_types foreach @true;


print "Array consists of elements from both arrays\n" if ( @p_type && 
+@c_type );
[download]

False Code

#!/usr/bin/perl -w

use strict;

my @p_types = qw( pam php kph );
my @c_types = qw( cam c1 c2 );

my @true =  qw( pam c2 );  #  Gets true
my @false = qw( cam c2 );   #  Gets false



my @p_type = grep $_, @p_types foreach @false;
my @c_type = grep $_, @c_types foreach @false;


print "Array consists of elements from both arrays\n" if ( @p_type && 
+@c_type );
[download]

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