On Mon, Jun 23, 2008 at 1:15 PM, Galchin, Vasili <[EMAIL PROTECTED]> wrote: > I tried to write a test value of Word8 without success. Can you give an > example?
I'm not quite sure what you would want in such an example. See [1] for the malloc function. Then you take the result and wrap it with [2]: fp <- mallocBytes nbytes >>= newForeignPtr finalizerFree When you want to use it, use [3] to unwrap fp and get a raw Ptr Word8. You can pass these to foreign functions any place they expect a uint8_t *, char * etc. [1] http://www.haskell.org/hoogle/hoodoc.cgi?module=Foreign.Marshal.Alloc&name=mallocBytes&mode=func [2] http://www.haskell.org/hoogle/hoodoc.cgi?module=Foreign.ForeignPtr&name=newForeignPtr&mode=func [3] http://www.haskell.org/hoogle/hoodoc.cgi?module=Foreign.ForeignPtr&name=withForeignPtr&mode=func -- Adam Langley [EMAIL PROTECTED] http://www.imperialviolet.org _______________________________________________ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
