Actually, this is probably safer: import Foreign.Marshal.Alloc import Foreign.Ptr import Foreign.Storable import Data.Word import System.IO.Unsafe endianCheck = unsafePerformIO $ alloca $ \p -> poke p (0x01020304 :: Word32) >> peek (castPtr p :: Ptr Word8) littleEndian = endianCheck == 4 bigEndian = endianCheck == 1 -- ryan On Thu, Dec 18, 2008 at 4:33 AM, Ryan Ingram <ryani.spam@gmail.com> wrote:
I think something like this might work:
Prelude GHC.Exts GHC.Word> let W64# x = 0x100000002 in W32# (unsafeCoerce# x) 2
You should get 1 for big-endian and 2 for little-endian.
(Disclaimer: not particularily well-tested.)
-- ryan
On Thu, Dec 18, 2008 at 3:27 AM, Mauricio <briqueabraque@yahoo.com> wrote:
Hi,
Is there some way I can check the endianness of the machine my haskell code is running in?
Thanks, Maurício
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