From: Julian Gall <julian.gall@...>
Date: 2006-03-03T22:37:52+09:00
Subject: Array comparison returning nil

I am comparing two arrays with:

original_item_ids.sort <=> new_item_ids.sort

However, this returns nil, which seems to be against the documentation 
which says the result will be -1, 0 or 1. Both arrays contain the same 
values, alhough in a different order, hence the sort.

Does anyone know of any circumstance that would cause this?

Thanks,

Julian

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