Ok, the only data types in Perl are scalars, arrays and hashes from what I understand, but it is possible to simulate a user-defined data type using an anonymous hash. I don't think I have understood this concept in its entirety...

my resources are so limited. With resources I mean examples, so I am a bit shaky when it comes to holding a grip over simulating user-defined data types.

The code I have is presented underneath but I think I don't fully understand what a user-defined-data type is in terms of (why would it be there if the arrays, hashes, scalars and Perl overall have an intelligence capability) due to the concise nature of the code.

this code creates a data type called record that holds a value, its minimum possible and its maximum possible, I understood the mechanism of its working including the return of the anonymous hash and its reference thereof, but the concept is what I lack, so can a generous wiser monk make me understand why data types present themselves and what causes they do serve and how to get better at coming up with them.

sub record{
        ($value, $max, $min)=@_;
        if($value>=$min && $value<=$max){
                return{                     #returning an anonymous ha
+sh
                        value=>$value,
                        max  =>$max,
                        min  =>$min,
                        };
                }else{
                        return;
                        }
        }
        
$myrecord=record(100,1000,10);
print $myrecord->{max};

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In reply to Simulating user defined data types by biohisham

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