Re: [Haskell-cafe] Num instance for Lazy ByteStrings (was: NumLazyByteString Package License)

Is NumLazyByteString a newtype around Bytestring.Lazy that interprets the bit stream represented by the ByteString as integer?

Not exactly. There is not newtype wrapper. NumLazyByteString is: instance Num L.ByteString where ... instance Enum L.ByteString where ... instance Integral L.ByteString where ... instance Bits L.ByteString where ...

If so, could this also be done using a newtype around [Integer], where appropriately large Integers are used? If yes, you may find  http://code.haskell.org/numeric-prelude/src/Number/Positional.hs  useful.

Thanks for the pointer.