[Haskell-beginners] Searching for word in 2D array

Ozgur Akgun ozgurakgun at gmail.com
Fri Mar 23 16:41:36 CET 2012


On 23 March 2012 10:06, Lorenzo Bolla <lbolla at gmail.com> wrote:

> I'm not sure Data.Set would work, because afaik, Sets don't preserve
> ordering: so a row like "abc" and "cab" would be represented by the same
> Set.
>

What?

Yes, Data.Set doesn't preserve any ordering between the members of it. It
doesn't modify the members themselves and shuffle their content though. Try
it for yourself:

ghci> S.fromList ["abc", "cab"]
ghci> S.fromList ["abc", "cab", "abc"]

Ozgur
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