1 /* -----------------------------------------------------------------------------
2 * $Id: HsFFI.h,v 1.1 2000/04/05 15:20:41 panne Exp $
4 * (c) The GHC Team, 2000
6 * A mapping for Haskell types to C types, including the corresponding bounds.
7 * Intended to be used in conjuction with the FFI.
9 * ---------------------------------------------------------------------------*/
14 /* get types from GHC's runtime system */
17 /* get limits for integral types */
18 /* NOTE: This is currently not as portable as it should be. Another route
19 would be including limits.h plus some #ifdef magic around the bounds of
20 types without a specified size. */
23 /* get limits for floating point types */
26 typedef StgChar HsChar;
28 typedef StgInt8 HsInt8;
29 typedef StgInt16 HsInt16;
30 typedef StgInt32 HsInt32;
31 typedef StgInt64 HsInt64;
32 typedef StgWord8 HsWord8;
33 typedef StgWord16 HsWord16;
34 typedef StgWord32 HsWord32;
35 typedef StgWord64 HsWord64;
36 typedef StgFloat HsFloat;
37 typedef StgDouble HsDouble;
38 typedef StgBool HsBool;
39 typedef void* HsAddr; /* this should better match StgAddr */
40 typedef void* HsForeignObj; /* ... and this StgForeignPtr */
41 typedef void* HsStablePtr; /* NOTE: THIS IS CURRENTLY WRONG!!! */
43 /* this should correspond to the type of StgChar in StgTypes.h */
45 #define HS_CHAR_MAX UINT8_MAX
47 /* this mirrors the distinction of cases in StgTypes.h */
48 #if SIZEOF_VOID_P == 8
49 #define HS_INT_MIN INT64_MIN
50 #define HS_INT_MAX INT64_MAX
51 #elif SIZEOF_VOID_P == 4
52 #define HS_INT_MIN INT32_MIN
53 #define HS_INT_MAX INT32_MAX
55 #error GHC untested on this architecture: sizeof(void *) != 4 or 8
58 #define HS_INT8_MIN INT8_MIN
59 #define HS_INT8_MAX INT8_MAX
60 #define HS_INT16_MIN INT16_MIN
61 #define HS_INT16_MAX INT16_MAX
62 #define HS_INT32_MIN INT32_MIN
63 #define HS_INT32_MAX INT32_MAX
64 #define HS_INT64_MIN INT64_MIN
65 #define HS_INT64_MAX INT64_MAX
66 #define HS_WORD8_MAX UINT8_MAX
67 #define HS_WORD16_MAX UINT16_MAX
68 #define HS_WORD32_MAX UINT32_MAX
69 #define HS_WORD64_MAX UINT64_MAX
71 #ifdef FLOATS_AS_DOUBLES
73 #define HS_FLOAT_RADIX DBL_RADIX
74 #define HS_FLOAT_ROUNDS DBL_ROUNDS
75 #define HS_FLOAT_EPSILON DBL_EPSILON
76 #define HS_FLOAT_DIG DBL_DIG
77 #define HS_FLOAT_MANT_DIG DBL_MANT_DIG
78 #define HS_FLOAT_MIN DBL_MIN
79 #define HS_FLOAT_MIN_EXP DBL_MIN_EXP
80 #define HS_FLOAT_MIN_10_EXP DBL_MIN_10_EXP
81 #define HS_FLOAT_MAX DBL_MAX
82 #define HS_FLOAT_MAX_EXP DBL_MAX_EXP
83 #define HS_FLOAT_MAX_10_EXP DBL_MAX_10_EXP
87 #define HS_FLOAT_RADIX FLT_RADIX
88 #define HS_FLOAT_ROUNDS FLT_ROUNDS
89 #define HS_FLOAT_EPSILON FLT_EPSILON
90 #define HS_FLOAT_DIG FLT_DIG
91 #define HS_FLOAT_MANT_DIG FLT_MANT_DIG
92 #define HS_FLOAT_MIN FLT_MIN
93 #define HS_FLOAT_MIN_EXP FLT_MIN_EXP
94 #define HS_FLOAT_MIN_10_EXP FLT_MIN_10_EXP
95 #define HS_FLOAT_MAX FLT_MAX
96 #define HS_FLOAT_MAX_EXP FLT_MAX_EXP
97 #define HS_FLOAT_MAX_10_EXP FLT_MAX_10_EXP
99 #endif /* FLOATS_AS_DOUBLES */
101 #define HS_DOUBLE_RADIX DBL_RADIX
102 #define HS_DOUBLE_ROUNDS DBL_ROUNDS
103 #define HS_DOUBLE_EPSILON DBL_EPSILON
104 #define HS_DOUBLE_DIG DBL_DIG
105 #define HS_DOUBLE_MANT_DIG DBL_MANT_DIG
106 #define HS_DOUBLE_MIN DBL_MIN
107 #define HS_DOUBLE_MIN_EXP DBL_MIN_EXP
108 #define HS_DOUBLE_MIN_10_EXP DBL_MIN_10_EXP
109 #define HS_DOUBLE_MAX DBL_MAX
110 #define HS_DOUBLE_MAX_EXP DBL_MAX_EXP
111 #define HS_DOUBLE_MAX_10_EXP DBL_MAX_10_EXP