Foreign.Ptr

{-# OPTIONS -fno-implicit-prelude #-}
-----------------------------------------------------------------------------
-- |
-- Module      :  Foreign.Ptr
-- Copyright   :  (c) The FFI task force 2001
-- License     :  BSD-style (see the file libraries/base/LICENSE)
-- 
-- Maintainer  :  ffi@haskell.org
-- Stability   :  provisional
-- Portability :  portable
--
-- This module provides typed pointers to foreign data.  It is part
-- of the Foreign Function Interface (FFI) and will normally be
-- imported via the "Foreign" module.
--
-----------------------------------------------------------------------------

module Foreign.Ptr (

    -- * Data pointers
    
    Ptr,      -- data Ptr a
    nullPtr,      -- :: Ptr a
    castPtr,      -- :: Ptr a -> Ptr b
    plusPtr,      -- :: Ptr a -> Int -> Ptr b
    alignPtr,     -- :: Ptr a -> Int -> Ptr a
    minusPtr,     -- :: Ptr a -> Ptr b -> Int
    
    -- * Function pointers
    
    FunPtr,      -- data FunPtr a
    nullFunPtr,      -- :: FunPtr a
    castFunPtr,      -- :: FunPtr a -> FunPtr b
    castFunPtrToPtr, -- :: FunPtr a -> Ptr b
    castPtrToFunPtr, -- :: Ptr a -> FunPtr b
    
    freeHaskellFunPtr, -- :: FunPtr a -> IO ()
    -- Free the function pointer created by foreign export dynamic.

 ) where

import Hugs.Ptr