On 25 April 2005 12:51, Simon Marlow wrote:

On 22 April 2005 16:18, Dimitry Golubovsky wrote:

...

I am trying to generalize my knowledge about FFI declarations when dealing with pointers to pointers (import from C to Haskell). Maybe these are silly questions, but It seems to me, I am missing some understanding.

Per the FFI Addendum:

For a variable, we use "&" import:

int bar;

foreign import ccall "&" bar :: Ptr CInt

The syntax you want is

foreign import ccall "&bar" :: Ptr CInt

oops, never mind. Your version was fine. Cheers, Simon