Fellow monks,

Please forgive the title if it's not quite descriptive enough but here's my dilema.

I'm writing a solitare game in Perl/Tk and I have 5 arrays with 5 elements each. I thought about using a 2 dimensional array, but I am unsure how you would unshift a value off that type of data structure, so for the present I'm sticking to the 5 arrays.

I'm trying to use eval to build the code to compare two array values, but I am getting an error saying that the index, that I am trying to concatenate with my array base name, needs to be defined.

Here's the code I've been playing with to test this: 

#!/usr/bin/perl -w

use strict;

my ($i, $j);
my @a1=(1,2,3,4,5);
my @a2=(2,1,3,5,4);
my @a3=(3,4,5,1,2);
my @a4=(4,2,3,5,1);
my @a5=(5,4,3,2,1);

for $i(1..4){
    for $j($i+1..5){
        if (eval{$a.$i}[0] == eval{$a.$j}[0]){
            print "Matched one!\n";
            last};
    };
};

[download]

Can someone possibly shed some light on how I can accomplish what I'm trying to do? I'd rather do it this way than a series of if match then last type of thing.

Thanks in advance!

Some people fall from grace. I prefer a running start...

In reply to Using eval to build array structure by Popcorn Dave

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