-{-# OPTIONS -fno-implicit-prelude #-}
+{-# OPTIONS_GHC -XNoImplicitPrelude #-}
-----------------------------------------------------------------------------
-- |
-- Module : Foreign.Storable
-----------------------------------------------------------------------------
module Foreign.Storable
- ( Storable(
- sizeOf, -- :: a -> Int
- alignment, -- :: a -> Int
- peekElemOff, -- :: Ptr a -> Int -> IO a
- pokeElemOff, -- :: Ptr a -> Int -> a -> IO ()
- peekByteOff, -- :: Ptr b -> Int -> IO a
- pokeByteOff, -- :: Ptr b -> Int -> a -> IO ()
- peek, -- :: Ptr a -> IO a
- poke) -- :: Ptr a -> a -> IO ()
+ ( Storable(
+ sizeOf, -- :: a -> Int
+ alignment, -- :: a -> Int
+ peekElemOff, -- :: Ptr a -> Int -> IO a
+ pokeElemOff, -- :: Ptr a -> Int -> a -> IO ()
+ peekByteOff, -- :: Ptr b -> Int -> IO a
+ pokeByteOff, -- :: Ptr b -> Int -> a -> IO ()
+ peek, -- :: Ptr a -> IO a
+ poke) -- :: Ptr a -> a -> IO ()
) where
,Int8,Int16,Int32,Int64,Word8,Word16,Word32,Word64)
#else
-import Control.Monad ( liftM )
+import Control.Monad ( liftM )
#include "MachDeps.h"
-#include "config.h"
+#include "HsBaseConfig.h"
#ifdef __GLASGOW_HASKELL__
import GHC.Storable
-import GHC.Stable ( StablePtr )
+import GHC.Stable ( StablePtr )
+import GHC.IO() -- Instance Monad IO
import GHC.Num
import GHC.Int
import GHC.Word
-import GHC.Stable
import GHC.Ptr
-import GHC.Float
import GHC.Err
-import GHC.IOBase
import GHC.Base
#else
import Data.Int
import Data.Word
-import Foreign.Ptr
import Foreign.StablePtr
#endif
#ifdef __HUGS__
import Hugs.Prelude
+import Hugs.Ptr
import Hugs.Storable
#endif
boils down to translating Haskell data structures into the binary
representation of a corresponding data structure of the foreign
language and vice versa. To code this marshalling in Haskell, it is
-necessary to manipulate primtive data types stored in unstructured
+necessary to manipulate primitive data types stored in unstructured
memory blocks. The class 'Storable' facilitates this manipulation on
all types for which it is instantiated, which are the standard basic
types of Haskell, the fixed size @Int@ types ('Int8', 'Int16',
peekElemOff p i = liftM (/= (0::HTYPE_INT)) $ peekElemOff (castPtr p) i
pokeElemOff p i x = pokeElemOff (castPtr p) i (if x then 1 else 0::HTYPE_INT)
-#define STORABLE(T,size,align,read,write) \
-instance Storable (T) where { \
- sizeOf _ = size; \
- alignment _ = align; \
- peekElemOff = read; \
+#define STORABLE(T,size,align,read,write) \
+instance Storable (T) where { \
+ sizeOf _ = size; \
+ alignment _ = align; \
+ peekElemOff = read; \
pokeElemOff = write }
#ifdef __GLASGOW_HASKELL__
STORABLE(Char,SIZEOF_INT32,ALIGNMENT_INT32,
- readWideCharOffPtr,writeWideCharOffPtr)
+ readWideCharOffPtr,writeWideCharOffPtr)
#elif defined(__HUGS__)
STORABLE(Char,SIZEOF_HSCHAR,ALIGNMENT_HSCHAR,
- readCharOffPtr,writeCharOffPtr)
+ readCharOffPtr,writeCharOffPtr)
#endif
STORABLE(Int,SIZEOF_HSINT,ALIGNMENT_HSINT,
- readIntOffPtr,writeIntOffPtr)
+ readIntOffPtr,writeIntOffPtr)
-#ifdef __GLASGOW_HASKELL__
+#ifndef __NHC__
STORABLE(Word,SIZEOF_HSWORD,ALIGNMENT_HSWORD,
- readWordOffPtr,writeWordOffPtr)
+ readWordOffPtr,writeWordOffPtr)
#endif
STORABLE((Ptr a),SIZEOF_HSPTR,ALIGNMENT_HSPTR,
- readPtrOffPtr,writePtrOffPtr)
+ readPtrOffPtr,writePtrOffPtr)
STORABLE((FunPtr a),SIZEOF_HSFUNPTR,ALIGNMENT_HSFUNPTR,
- readFunPtrOffPtr,writeFunPtrOffPtr)
+ readFunPtrOffPtr,writeFunPtrOffPtr)
STORABLE((StablePtr a),SIZEOF_HSSTABLEPTR,ALIGNMENT_HSSTABLEPTR,
- readStablePtrOffPtr,writeStablePtrOffPtr)
+ readStablePtrOffPtr,writeStablePtrOffPtr)
STORABLE(Float,SIZEOF_HSFLOAT,ALIGNMENT_HSFLOAT,
- readFloatOffPtr,writeFloatOffPtr)
+ readFloatOffPtr,writeFloatOffPtr)
STORABLE(Double,SIZEOF_HSDOUBLE,ALIGNMENT_HSDOUBLE,
- readDoubleOffPtr,writeDoubleOffPtr)
+ readDoubleOffPtr,writeDoubleOffPtr)
STORABLE(Word8,SIZEOF_WORD8,ALIGNMENT_WORD8,
- readWord8OffPtr,writeWord8OffPtr)
+ readWord8OffPtr,writeWord8OffPtr)
STORABLE(Word16,SIZEOF_WORD16,ALIGNMENT_WORD16,
- readWord16OffPtr,writeWord16OffPtr)
+ readWord16OffPtr,writeWord16OffPtr)
STORABLE(Word32,SIZEOF_WORD32,ALIGNMENT_WORD32,
- readWord32OffPtr,writeWord32OffPtr)
+ readWord32OffPtr,writeWord32OffPtr)
STORABLE(Word64,SIZEOF_WORD64,ALIGNMENT_WORD64,
- readWord64OffPtr,writeWord64OffPtr)
+ readWord64OffPtr,writeWord64OffPtr)
STORABLE(Int8,SIZEOF_INT8,ALIGNMENT_INT8,
- readInt8OffPtr,writeInt8OffPtr)
+ readInt8OffPtr,writeInt8OffPtr)
STORABLE(Int16,SIZEOF_INT16,ALIGNMENT_INT16,
- readInt16OffPtr,writeInt16OffPtr)
+ readInt16OffPtr,writeInt16OffPtr)
STORABLE(Int32,SIZEOF_INT32,ALIGNMENT_INT32,
- readInt32OffPtr,writeInt32OffPtr)
+ readInt32OffPtr,writeInt32OffPtr)
STORABLE(Int64,SIZEOF_INT64,ALIGNMENT_INT64,
- readInt64OffPtr,writeInt64OffPtr)
+ readInt64OffPtr,writeInt64OffPtr)
#endif