blob: 12cbc42fe1908b932163d6461ebd8f2f7d9d850b (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
|
-- conversion to/from Data.Vector.Storable
-- from Roman Leshchinskiy "vector" package
--
-- In the future Data.Packed.Vector will be replaced by Data.Vector.Storable
-------------------------------------------
import Data.Packed as H
import Data.Packed.Development(unsafeFromForeignPtr, unsafeToForeignPtr)
import Foreign.Storable
import qualified Data.Vector.Storable as V
fromVector :: Storable t => V.Vector t -> H.Vector t
fromVector v = unsafeFromForeignPtr p i n where
(p,i,n) = V.unsafeToForeignPtr (V.copy v)
toVector :: H.Vector t -> V.Vector t
toVector v = V.unsafeFromForeignPtr p i n where
(p,i,n) = unsafeToForeignPtr v
-------------------------------------------
v = V.slice 5 10 (V.fromList [1 .. 10::Double] V.++ V.replicate 10 7)
w = linspace 5 (0,2)
main = do
print $ fromVector v
print $ toVector w
|
