LINQ and set difference

Posted by Pierre on Stack Overflow See other posts from Stack Overflow or by Pierre
Published on 2010-05-26T05:31:18Z Indexed on 2010/05/26 5:41 UTC
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c#

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LINQ

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ienumerable

I have two collections a and b. I would like to compute the set of items in either a or b, but not in both (a logical exclusive or). With LINQ, I can come up with this:

IEnumerable<T> Delta<T>(IEnumerable<T> a, IEnumerable<T> b)
{
    return a.Except (b).Union (b.Except (a));
}

I wonder if there are other more efficient or more compact ways of producing the difference between the two collections.

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