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Use newtype for Matrix

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Rnhmjoj 2015-03-08 01:34:03 +01:00
parent 13f8d05030
commit 18fe09a531
1 changed files with 2 additions and 2 deletions
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Matrix.hs
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@ -1,8 +1,8 @@
module Matrix where
import Data.List (intercalate)
data Mat a = Mat [[a]]
type Pos = (Int, Int)
newtype Mat a = Mat [[a]]
type Pos = (Int, Int)
instance Functor Mat where
fmap f (Mat m) = Mat ((map . map) f m)