You want to compare each element of @a against the element of the same index in @b, right? This will do it.

print "Index: $_ => \@a: $a[$_], \@b: $b[$_]\n" 
    for grep { $a[$_] != $b[$_] } 0 .. $#a;

[download]

...or...

foreach( 0 .. $#a ) {
    print "Index: $_ => \@a: $a[$_], \@b: $b[$_]\n" if $a[$_] != $b[$_
+];
}

[download]

Which you choose kind of depends on whether you're more interested in keeping a list of indices to the dissimilar elements, or simply interested in processing the mismatches one by one. The grep version is handy for getting the list of mismatches.


Dave

In reply to Re: Compare two arrays by davido
in thread Compare two arrays by Anonymous Monk

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