X-Git-Url: http://git.megacz.com/?a=blobdiff_plain;f=include%2FCTypes.h;h=f82faa8f0068bded177843c58cc19addf344fc0f;hb=e9e2a5412bb7cda8d13a063ac403d9f18ac97380;hp=a008e1571d2c59542bb0bce4cac22cc5ce633239;hpb=c4bfba7c3d39965a24ea6e7d3f2549979a1f2f85;p=ghc-base.git diff --git a/include/CTypes.h b/include/CTypes.h index a008e15..f82faa8 100644 --- a/include/CTypes.h +++ b/include/CTypes.h @@ -1,12 +1,13 @@ /* ----------------------------------------------------------------------------- - * $Id: CTypes.h,v 1.6 2002/09/04 16:46:40 ross 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 @@ -15,25 +16,24 @@ /* 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) ; \ @@ -43,11 +43,11 @@ INSTANCE_REALFLOAT(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 } @@ -172,24 +172,24 @@ instance Storable T where { \ * here... */ -#define NUMERIC_CLASSES Eq,Ord,Num,Enum,Storable -#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) ; @@ -206,3 +206,5 @@ instance Show T where { \ showList = unsafeCoerce# (showList :: [B] -> ShowS); } #endif /* __GLASGOW_HASKELL__ */ + +#endif