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1-- conversion to/from Data.Vector.Storable
2-- from Roman Leshchinskiy "vector" package
3--
4-- In the future Data.Packed.Vector will be replaced by Data.Vector.Storable
5
6-------------------------------------------
7
8import Data.Packed as H
9import Data.Packed.Development(unsafeFromForeignPtr, unsafeToForeignPtr)
10import Foreign.Storable
11import qualified Data.Vector.Storable as V
12
13fromVector :: Storable t => V.Vector t -> H.Vector t
14fromVector v = unsafeFromForeignPtr p i n where
15 (p,i,n) = V.unsafeToForeignPtr (V.copy v)
16
17toVector :: H.Vector t -> V.Vector t
18toVector v = V.unsafeFromForeignPtr p i n where
19 (p,i,n) = unsafeToForeignPtr v
20
21-------------------------------------------
22
23v = V.slice 5 10 (V.fromList [1 .. 10::Double] V.++ V.replicate 10 7)
24
25w = linspace 5 (0,2)
26
27main = do
28 print $ fromVector v
29 print $ toVector w