On 21 April 2005 02:10, Paul Steckler wrote:
I recently needed to access C-like arrays from Haskell. Everyone pointed me to Data.Storable.Array, but that wasn't quite what I wanted. The MArray class that provides the interface for storable arrays insists that it create the storage via newArray or newArray_. But I already had the C storage I needed; I justed wanted to wrap that in Haskell.
I cons'ed up my own primitives, which work just fine, but it would be nice to just use something already in the libraries. Concretely, adding a way to create a storable array from an existing Ptr would've done the trick. I can see that's less safe, but sometimes you have to live dangerously!
Ok, I've added a suitable back door: unsafeForeignPtrToStorableArray :: ForeignPtr e -> (i,i) -> IO (StorableArray i e) Cheers, Simon