That's an interesting thing to be doing. However, I think the person who asked me the question is actually trying to find out whether arrays and array slices are "equal" by using the "==" operator. I tried to explain how it was comparing the number of elements in arrays by using scalar context, but he suddenly went to bed. I was hoping there would be a function in List::Util to compare arrays and return if they are equal, but no luck there. Sorry for not making that clear before. What he wants to do is to 1) compare arrays to see if they have all the same elements in, and 2) compare array slices to see if they have all the same elements in. I think he should just write a subroutine to do it. But I sure think he shouldn't be using "==" to do it.