Simon Marlow wrote:
Bulat Ziganshin wrote: [...]
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)
It looks like this function is not available in GHC 6.4.1 (see http://www.haskell.org/ghc/docs/6.4.1/html/libraries/base/Data-Array-Storabl... ) It is, however, documented at http://www.haskell.org/HOpenGL/newAPI/base/Foreign-Storable.html but I don't know which version of GHC it applies to. Cheers, Cyril