[Haskell-cafe] Re: Bytes to float

[Simon Marlow]

Ivan Tikhonov wrote:
> Hello.
> 
> I have 4 bytes long String and i want to convert it to Float.
> How can i do this in Haskell? Don't want to use Ptr's.

Try this:

 > :m +Data.Array.IO Data.Word
 > x <- newListArray (0,3) [0,0,40,66] :: IO (IOUArray Int Word8)
 > y <- castIOUArray x :: IO (IOUArray Int Float)
 > readArray y 0 >>= print
42.0

Cheers,
	Simon