Re: Passing a matrix from C to Haskell

Bulat Ziganshin wrote:

Hello Chris,

Wednesday, February 08, 2006, 2:35:39 AM, you wrote:

CK> You probably want Foreign.Marshal.Array

CK> http://www.haskell.org/ghc/docs/6.4.1/html/libraries/base/Foreign-Marshal-Ar...

CK> peekArray :: Storable a => Int -> Ptr a -> IO [a]

i think we should define "secret door" to construct StorableArray from a pointer to allow to use full power of MArray interface on foreign arrays

You mean this? -- |Construct a 'StorableArray' from an arbitrary 'ForeignPtr'. It is -- the caller's responsibility to ensure that the 'ForeignPtr' points to -- an area of memory sufficient for the specified bounds. unsafeForeignPtrToStorableArray :: ForeignPtr e -> (i,i) -> IO (StorableArray i e) Cheers, Simon