1 {-# OPTIONS -fno-implicit-prelude #-}
2 -----------------------------------------------------------------------------
4 -- Module : Foreign.C.TypesISO
5 -- Copyright : (c) The FFI task force 2001
6 -- License : BSD-style (see the file libraries/base/LICENSE)
8 -- Maintainer : ffi@haskell.org
9 -- Stability : provisional
10 -- Portability : portable
12 -- A mapping of C types defined by the ISO C standard to corresponding Haskell
13 -- types. Like CTypes, this is a cool hack...
15 -----------------------------------------------------------------------------
18 module Foreign.C.TypesISO
19 ( -- Integral types, instances of: Eq, Ord, Num, Read, Show, Enum,
20 -- Typeable, Storable, Bounded, Real, Integral, Bits
21 CPtrdiff, CSize, CWchar, CSigAtomic
23 -- Numeric types, instances of: Eq, Ord, Num, Read, Show, Enum,
27 -- Instances of: Eq and Storable
28 , CFile, CFpos, CJmpBuf
45 import Data.Bits ( Bits(..) )
49 import Foreign.Storable
51 #ifdef __GLASGOW_HASKELL__
66 INTEGRAL_TYPE(CPtrdiff,tyConCPtrdiff,"CPtrdiff",HTYPE_PTRDIFF_T)
67 INTEGRAL_TYPE(CSize,tyConCSize,"CSize",HTYPE_SIZE_T)
68 INTEGRAL_TYPE(CWchar,tyConCWchar,"CWchar",HTYPE_WCHAR_T)
69 INTEGRAL_TYPE(CSigAtomic,tyConCSigAtomic,"CSigAtomic",HTYPE_SIG_ATOMIC_T)
72 "fromIntegral/a->CPtrdiff" fromIntegral = \x -> CPtrdiff (fromIntegral x)
73 "fromIntegral/a->CSize" fromIntegral = \x -> CSize (fromIntegral x)
74 "fromIntegral/a->CWchar" fromIntegral = \x -> CWchar (fromIntegral x)
75 "fromIntegral/a->CSigAtomic" fromIntegral = \x -> CSigAtomic (fromIntegral x)
77 "fromIntegral/CPtrdiff->a" fromIntegral = \(CPtrdiff x) -> fromIntegral x
78 "fromIntegral/CSize->a" fromIntegral = \(CSize x) -> fromIntegral x
79 "fromIntegral/CWchar->a" fromIntegral = \(CWchar x) -> fromIntegral x
80 "fromIntegral/CSigAtomic->a" fromIntegral = \(CSigAtomic x) -> fromIntegral x
83 INTEGRAL_TYPE(CClock,tyConCClock,"CClock",HTYPE_CLOCK_T)
84 INTEGRAL_TYPE(CTime,tyConCTime,"CTime",HTYPE_TIME_T)
86 -- FIXME: Implement and provide instances for Eq and Storable
89 data CJmpBuf = CJmpBuf
91 -- C99 types which are still missing include:
92 -- intptr_t, uintptr_t, intmax_t, uintmax_t, wint_t, wctrans_t, wctype_t