Re^2: Difference between two arrays

Thanks for your solution. It's pretty much what I was looking for. :-)

But.. are you sure if that code works for any input data one could think of? Couldn't the

$after->[$lo_1 + 1]
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result in an undefined value when $lo_1 equals $#{$after}?

Cheers, Flo

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Re^3: Difference between two arrays by reasonablekeith (Deacon) on Mar 23, 2006 at 10:30 UTC
$lo_1 would never be the last index in the array, so no. The highest order change is either moving element index 8 to 9 or moving 9 to 8. In either case $lo_1 will be 8, and $lo_1 + 1 will be 9, and in range. I think the above is the best solution here. --- my name's not Keith, and I'm not reasonable.	[reply]