/* -----------------------------------------------------------------------------
- * $Id: CTypes.h,v 1.4 2002/08/20 10:03:05 simonmar Exp $
- *
* Dirty CPP hackery for CTypes/CTypesISO
*
* (c) The FFI task force, 2000
* -------------------------------------------------------------------------- */
-#include "MachDeps.h"
+#ifndef CTYPES__H
+#define CTYPES__H
+
+#include "Typeable.h"
/* As long as there is no automatic derivation of classes for newtypes we resort
to extremely dirty cpp-hackery. :-P Some care has to be taken when the
/* A hacked version for GHC follows the Haskell 98 version... */
#ifndef __GLASGOW_HASKELL__
-#define NUMERIC_TYPE(T,C,S,B) \
+#define ARITHMETIC_TYPE(T,C,S,B) \
newtype T = T B deriving (Eq, Ord) ; \
INSTANCE_NUM(T) ; \
-INSTANCE_READ(T) ; \
-INSTANCE_SHOW(T) ; \
+INSTANCE_REAL(T) ; \
+INSTANCE_READ(T,B) ; \
+INSTANCE_SHOW(T,B) ; \
INSTANCE_ENUM(T) ; \
+INSTANCE_STORABLE(T) ; \
INSTANCE_TYPEABLE0(T,C,S) ;
#define INTEGRAL_TYPE(T,C,S,B) \
-NUMERIC_TYPE(T,C,S,B) ; \
+ARITHMETIC_TYPE(T,C,S,B) ; \
INSTANCE_BOUNDED(T) ; \
-INSTANCE_REAL(T) ; \
INSTANCE_INTEGRAL(T) ; \
INSTANCE_BITS(T)
#define FLOATING_TYPE(T,C,S,B) \
-NUMERIC_TYPE(T,C,S,B) ; \
-INSTANCE_REAL(T) ; \
+ARITHMETIC_TYPE(T,C,S,B) ; \
INSTANCE_FRACTIONAL(T) ; \
INSTANCE_FLOATING(T) ; \
INSTANCE_REALFRAC(T) ; \
#define fakeMap map
#endif
-#define INSTANCE_READ(T) \
+#define INSTANCE_READ(T,B) \
instance Read T where { \
readsPrec p s = fakeMap (\(x, t) -> (T x, t)) (readsPrec p s) }
-#define INSTANCE_SHOW(T) \
+#define INSTANCE_SHOW(T,B) \
instance Show T where { \
showsPrec p (T x) = showsPrec p x }
isIEEE (T x) = isIEEE x ; \
(T x) `atan2` (T y) = T (x `atan2` y) }
+#define INSTANCE_STORABLE(T) \
+instance Storable T where { \
+ sizeOf (T x) = sizeOf x ; \
+ alignment (T x) = alignment x ; \
+ peekElemOff a i = liftM T (peekElemOff (castPtr a) i) ; \
+ pokeElemOff a i (T x) = pokeElemOff (castPtr a) i x }
+
#else /* __GLASGOW_HASKELL__ */
/* GHC can derive any class for a newtype, so we make use of that
* here...
*/
-#define NUMERIC_CLASSES Eq,Ord,Num,Enum
-#define INTEGRAL_CLASSES Bounded,Real,Integral,Bits
-#define FLOATING_CLASSES Real,Fractional,Floating,RealFrac,RealFloat
+#define ARITHMETIC_CLASSES Eq,Ord,Num,Enum,Storable,Real
+#define INTEGRAL_CLASSES Bounded,Integral,Bits
+#define FLOATING_CLASSES Fractional,Floating,RealFrac,RealFloat
-#define NUMERIC_TYPE(T,C,S,B) \
-newtype T = T B deriving (NUMERIC_CLASSES); \
+#define ARITHMETIC_TYPE(T,C,S,B) \
+newtype T = T B deriving (ARITHMETIC_CLASSES); \
INSTANCE_READ(T,B); \
INSTANCE_SHOW(T,B); \
INSTANCE_TYPEABLE0(T,C,S) ;
#define INTEGRAL_TYPE(T,C,S,B) \
-newtype T = T B deriving (NUMERIC_CLASSES, INTEGRAL_CLASSES); \
+newtype T = T B deriving (ARITHMETIC_CLASSES, INTEGRAL_CLASSES); \
INSTANCE_READ(T,B); \
INSTANCE_SHOW(T,B); \
INSTANCE_TYPEABLE0(T,C,S) ;
#define FLOATING_TYPE(T,C,S,B) \
-newtype T = T B deriving (NUMERIC_CLASSES, FLOATING_CLASSES); \
+newtype T = T B deriving (ARITHMETIC_CLASSES, FLOATING_CLASSES); \
INSTANCE_READ(T,B); \
INSTANCE_SHOW(T,B); \
INSTANCE_TYPEABLE0(T,C,S) ;
showList = unsafeCoerce# (showList :: [B] -> ShowS); }
#endif /* __GLASGOW_HASKELL__ */
+
+#endif