-{-# OPTIONS -fno-implicit-prelude #-}
+{-# OPTIONS_GHC -XNoImplicitPrelude #-}
-----------------------------------------------------------------------------
-- |
-- Module : Foreign.StablePtr
module Foreign.StablePtr
( -- * Stable references to Haskell values
- StablePtr, -- abstract
+ StablePtr -- abstract
, newStablePtr -- :: a -> IO (StablePtr a)
, deRefStablePtr -- :: StablePtr a -> IO a
, freeStablePtr -- :: StablePtr a -> IO ()
, castStablePtrToPtr -- :: StablePtr a -> Ptr ()
, castPtrToStablePtr -- :: Ptr () -> StablePtr a
- , -- ** The C-side interface
+ , -- ** The C-side interface
- -- $cinterface
+ -- $cinterface
) where
#ifdef __GLASGOW_HASKELL__
import GHC.Stable
-import GHC.Err
#endif
+#ifdef __HUGS__
+import Hugs.StablePtr
+#endif
+
+#ifdef __NHC__
+import NHC.FFI
+ ( StablePtr
+ , newStablePtr
+ , deRefStablePtr
+ , freeStablePtr
+ , castStablePtrToPtr
+ , castPtrToStablePtr
+ )
+#endif
-- $cinterface
--
-- pointers. In fact, they need not even be valid memory addresses. The only
-- guarantee provided is that if they are passed back to Haskell land, the
-- function 'deRefStablePtr' will be able to reconstruct the
--- Haskell value refereed to by the stable pointer.
+-- Haskell value referred to by the stable pointer.