[Haskell-cafe] Symmetric Difference for Data.Set and Data.IntSet?

[Ruben Astudillo]

On 20/06/15 21:49, Zemyla wrote:
> Alternatively, could we get a merge interface for Set and IntSet roughly
> matching Map and IntMap?

Could you expand on what you mean? I understand it as that having operations of
(Int)Map for (Int)Set, why don't just use (Int)Map then?