Re: [Haskell-cafe] Help needed for converting IOArray to ByteString

On Tue, Feb 8, 2011 at 2:26 PM, Michael Snoyman wrote:

Your array contains machine-sized Ints, which in practice are likely either 32-bit or 64-bit, while a ByteString is the equivalent of an array or 8-bit values. So you'll need to somehow convert the Ints to Word8s. Do you know if you need big or little endian?

A basic approach would be:

* Use freeze to convert your IOArray into an IArray * Use putIArrayOf and put (from cereal) to generate a Putter value * Use runPut to generate a ByteString from that

Thanks Michael, Actually, I need an array of 8-bit words - Is that available? Also, would be hard to do it without cereal? Regards, Kashyap