Re: [Haskell-cafe] Memory-mapped arrays?

joelr1:

Is there such a thing as memory-mapped arrays in GHC?

I'm looking for something that would let me memory-map a file of floats and access it as an array.

There's a commented out mmapFile for ByteString in Data.ByteString's source. Use that, and then extract the ForeignPtr from the resulting ByteString, and castPtr it to a Ptr CFloat, then you're in business. -- Don