[project @ 2003-07-31 10:48:50 by panne]

[ghc-base.git] / Foreign / C / Types.hs

diff --git a/Foreign/C/Types.hs b/Foreign/C/Types.hs
index 744d448..5d896ea 100644 (file)
--- a/Foreign/C/Types.hs
+++ b/Foreign/C/Types.hs
@@ -1,36 +1,68 @@
 {-# OPTIONS -fno-implicit-prelude #-}
 -----------------------------------------------------------------------------
--- 
+-- |
 -- Module      :  Foreign.C.Types
 -- Copyright   :  (c) The FFI task force 2001
--- License     :  BSD-style (see the file libraries/core/LICENSE)
+-- License     :  BSD-style (see the file libraries/base/LICENSE)
 -- 
 -- Maintainer  :  ffi@haskell.org
 -- Stability   :  provisional
 -- Portability :  portable
 --
--- $Id: Types.hs,v 1.2 2001/07/03 11:37:50 simonmar Exp $
---
--- Mapping of C types to corresponding Haskell types. A cool hack...
+-- Mapping of C types to corresponding Haskell types.
 --
 -----------------------------------------------------------------------------
 
 module Foreign.C.Types
+#ifndef __NHC__
        ( -- Integral types, instances of: Eq, Ord, Num, Read, Show, Enum,
          -- Typeable, Storable, Bounded, Real, Integral, Bits
-         CChar(..),    CSChar(..),  CUChar(..)
-       , CShort(..),   CUShort(..), CInt(..),    CUInt(..)
-       , CLong(..),    CULong(..),  CLLong(..),  CULLong(..)
+         CChar,  CSChar,  CUChar
+       , CShort, CUShort, CInt,   CUInt
+       , CLong,  CULong
+       , CPtrdiff, CSize, CWchar, CSigAtomic
+        , CLLong, CULLong
+         -- Numeric types, instances of: Eq, Ord, Num, Read, Show, Enum,
+         -- Typeable, Storable
+       , CClock,   CTime
 
          -- Floating types, instances of: Eq, Ord, Num, Read, Show, Enum,
-         -- Typeable, Storable, Real, Fractional, Floating, RealFrac, RealFloat
+         -- Typeable, Storable, Real, Fractional, Floating, RealFrac,
+         -- RealFloat 
+       , CFloat,  CDouble, CLDouble
+#else
+       ( -- Exported non-abstractly in nhc98 to fix an interface file problem.
+         CChar(..),    CSChar(..),  CUChar(..)
+       , CShort(..),   CUShort(..), CInt(..),   CUInt(..)
+       , CLong(..),    CULong(..)
+       , CPtrdiff(..), CSize(..),   CWchar(..), CSigAtomic(..)
+        , CLLong(..),   CULLong(..)
+       , CClock(..),   CTime(..)
        , CFloat(..),   CDouble(..), CLDouble(..)
+#endif
+
+          -- Instances of: Eq and Storable
+       , CFile,        CFpos,     CJmpBuf
        ) where
 
+#ifdef __NHC__
+import NHC.FFI
+  ( CChar(..),    CSChar(..),  CUChar(..)
+  , CShort(..),   CUShort(..), CInt(..),   CUInt(..)
+  , CLong(..),    CULong(..),  CLLong(..), CULLong(..)
+  , CPtrdiff(..), CSize(..),   CWchar(..), CSigAtomic(..)
+  , CClock(..),   CTime(..)
+  , CFloat(..),   CDouble(..), CLDouble(..)
+  , CFile,        CFpos,       CJmpBuf
+  , Storable(..)
+  )
+#else
+
+import Foreign.Storable
 import Data.Bits       ( Bits(..) )
 import Data.Int                ( Int8,  Int16,  Int32,  Int64  )
 import Data.Word       ( Word8, Word16, Word32, Word64 )
-import Data.Dynamic
+import Data.Typeable
 
 #ifdef __GLASGOW_HASKELL__
 import GHC.Base
@@ -40,8 +72,12 @@ import GHC.Real
 import GHC.Show
 import GHC.Read
 import GHC.Num
+#else
+import Control.Monad
+import Foreign.Ptr
 #endif
 
+#include "Typeable.h"
 #include "CTypes.h"
 
 INTEGRAL_TYPE(CChar,tyConCChar,"CChar",HTYPE_CHAR)
@@ -91,24 +127,32 @@ FLOATING_TYPE(CDouble,tyConCDouble,"CDouble",HTYPE_DOUBLE)
 -- HACK: Currently no long double in the FFI, so we simply re-use double
 FLOATING_TYPE(CLDouble,tyConCLDouble,"CLDouble",HTYPE_DOUBLE)
 
+INTEGRAL_TYPE(CPtrdiff,tyConCPtrdiff,"CPtrdiff",HTYPE_PTRDIFF_T)
+INTEGRAL_TYPE(CSize,tyConCSize,"CSize",HTYPE_SIZE_T)
+INTEGRAL_TYPE(CWchar,tyConCWchar,"CWchar",HTYPE_WCHAR_T)
+INTEGRAL_TYPE(CSigAtomic,tyConCSigAtomic,"CSigAtomic",HTYPE_SIG_ATOMIC_T)
 
-#include "Dynamic.h"
-INSTANCE_TYPEABLE0(CChar,cCharTc,"CChar")
-INSTANCE_TYPEABLE0(CSChar,cSCharTc,"CSChar")
-INSTANCE_TYPEABLE0(CUChar,cUCharTc,"CUChar")
-
-INSTANCE_TYPEABLE0(CShort,cShortTc,"CShort")
-INSTANCE_TYPEABLE0(CUShort,cUShortTc,"CUShort")
+{-# RULES
+"fromIntegral/a->CPtrdiff"   fromIntegral = \x -> CPtrdiff   (fromIntegral x)
+"fromIntegral/a->CSize"      fromIntegral = \x -> CSize      (fromIntegral x)
+"fromIntegral/a->CWchar"     fromIntegral = \x -> CWchar     (fromIntegral x)
+"fromIntegral/a->CSigAtomic" fromIntegral = \x -> CSigAtomic (fromIntegral x)
+
+"fromIntegral/CPtrdiff->a"   fromIntegral = \(CPtrdiff   x) -> fromIntegral x
+"fromIntegral/CSize->a"      fromIntegral = \(CSize      x) -> fromIntegral x
+"fromIntegral/CWchar->a"     fromIntegral = \(CWchar     x) -> fromIntegral x
+"fromIntegral/CSigAtomic->a" fromIntegral = \(CSigAtomic x) -> fromIntegral x
+ #-}
 
-INSTANCE_TYPEABLE0(CInt,cIntTc,"CInt")
-INSTANCE_TYPEABLE0(CUInt,cUIntTc,"CUInt")
+INTEGRAL_TYPE(CClock,tyConCClock,"CClock",HTYPE_CLOCK_T)
+INTEGRAL_TYPE(CTime,tyConCTime,"CTime",HTYPE_TIME_T)
 
-INSTANCE_TYPEABLE0(CLong,cLongTc,"CLong")
-INSTANCE_TYPEABLE0(CULong,cULongTc,"CULong")
+-- FIXME: Implement and provide instances for Eq and Storable
+data CFile = CFile
+data CFpos = CFpos
+data CJmpBuf = CJmpBuf
 
-INSTANCE_TYPEABLE0(CLLong,cLLongTc,"CLLong")
-INSTANCE_TYPEABLE0(CULLong,cULLongTc,"CULLong")
+-- C99 types which are still missing include:
+-- intptr_t, uintptr_t, intmax_t, uintmax_t, wint_t, wctrans_t, wctype_t
 
-INSTANCE_TYPEABLE0(CFloat,cFloatTc,"CFloat")
-INSTANCE_TYPEABLE0(CDouble,cDoubleTc,"CDouble")
-INSTANCE_TYPEABLE0(CLDouble,cLDoubleTc,"CLDouble")
+#endif