On Solaris 5.6.1 I got 

michaela@drvdb2:michaela$ perl s.pl
There are 3 elements in @arr2
$arr2[2] is undefined

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In reply to Re^2: regexp list return 5.6 vs 5.8 by hipowls
in thread regexp list return 5.6 vs 5.8 by Sixtease

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