1 /* -----------------------------------------------------------------------------
2 * $Id: HsFFI.h,v 1.9 2000/11/13 17:17:40 simonmar 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 * WARNING: Keep this file and StgTypes.h in synch!
11 * ---------------------------------------------------------------------------*/
16 /* get types from GHC's runtime system */
20 /* get limits for integral types */
23 * "C++ implementations should define these macros only when
24 * __STDC_LIMIT_MACROS is defined before <stdint.h> is included."
26 #define __STDC_LIMIT_MACROS
28 #elif defined(HAVE_INTTYPES_H)
31 /* second best guess (e.g. on Solaris) */
35 /* if we had no luck, let's do it for ourselves (assuming 64bit long longs) */
37 #define INT8_MIN (-128)
38 #define INT16_MIN (-32767-1)
39 #define INT32_MIN (-2147483647-1)
40 #define INT64_MIN (-9223372036854775807LL-1)
41 #define INT8_MAX (127)
42 #define INT16_MAX (32767)
43 #define INT32_MAX (2147483647)
44 #define INT64_MAX (9223372036854775807LL)
45 #define UINT8_MAX (255U)
46 #define UINT16_MAX (65535U)
47 #define UINT32_MAX (4294967295U)
48 #define UINT64_MAX (18446744073709551615ULL)
49 /* Define these types too. Some C 99 code may assume that if INT8_MIN
50 is defined then int8_t is also present. */
51 typedef StgInt8 int8_t;
52 typedef StgInt16 int16_t;
53 typedef StgInt32 int32_t;
54 typedef StgInt64 int64_t;
55 typedef StgWord8 uint8_t;
56 typedef StgWord16 uint16_t;
57 typedef StgWord32 uint32_t;
58 typedef StgWord64 uint64_t;
61 /* get limits for floating point types */
64 typedef StgChar HsChar;
66 typedef StgInt8 HsInt8;
67 typedef StgInt16 HsInt16;
68 typedef StgInt32 HsInt32;
69 typedef StgInt64 HsInt64;
70 typedef StgWord HsWord;
71 typedef StgWord8 HsWord8;
72 typedef StgWord16 HsWord16;
73 typedef StgWord32 HsWord32;
74 typedef StgWord64 HsWord64;
75 typedef StgFloat HsFloat;
76 typedef StgDouble HsDouble;
77 typedef StgBool HsBool;
78 typedef void* HsAddr; /* this should better match StgAddr */
79 typedef void* HsForeignObj; /* ... and this StgForeignPtr */
80 typedef void* HsStablePtr;
82 /* this should correspond to the type of StgChar in StgTypes.h */
84 #define HS_CHAR_MAX INT32_MAX
86 /* this mirrors the distinction of cases in StgTypes.h */
87 #if SIZEOF_VOID_P == 8
88 #define HS_INT_MIN INT64_MIN
89 #define HS_INT_MAX INT64_MAX
90 #elif SIZEOF_VOID_P == 4
91 #define HS_INT_MIN INT32_MIN
92 #define HS_INT_MAX INT32_MAX
94 #error GHC untested on this architecture: sizeof(void *) != 4 or 8
97 #define HS_INT8_MIN INT8_MIN
98 #define HS_INT8_MAX INT8_MAX
99 #define HS_INT16_MIN INT16_MIN
100 #define HS_INT16_MAX INT16_MAX
101 #define HS_INT32_MIN INT32_MIN
102 #define HS_INT32_MAX INT32_MAX
103 #define HS_INT64_MIN INT64_MIN
104 #define HS_INT64_MAX INT64_MAX
105 #define HS_WORD8_MAX UINT8_MAX
106 #define HS_WORD16_MAX UINT16_MAX
107 #define HS_WORD32_MAX UINT32_MAX
108 #define HS_WORD64_MAX UINT64_MAX
110 #define HS_FLOAT_RADIX FLT_RADIX
111 #define HS_FLOAT_ROUNDS FLT_ROUNDS
112 #define HS_FLOAT_EPSILON FLT_EPSILON
113 #define HS_FLOAT_DIG FLT_DIG
114 #define HS_FLOAT_MANT_DIG FLT_MANT_DIG
115 #define HS_FLOAT_MIN FLT_MIN
116 #define HS_FLOAT_MIN_EXP FLT_MIN_EXP
117 #define HS_FLOAT_MIN_10_EXP FLT_MIN_10_EXP
118 #define HS_FLOAT_MAX FLT_MAX
119 #define HS_FLOAT_MAX_EXP FLT_MAX_EXP
120 #define HS_FLOAT_MAX_10_EXP FLT_MAX_10_EXP
122 #define HS_DOUBLE_RADIX DBL_RADIX
123 #define HS_DOUBLE_ROUNDS DBL_ROUNDS
124 #define HS_DOUBLE_EPSILON DBL_EPSILON
125 #define HS_DOUBLE_DIG DBL_DIG
126 #define HS_DOUBLE_MANT_DIG DBL_MANT_DIG
127 #define HS_DOUBLE_MIN DBL_MIN
128 #define HS_DOUBLE_MIN_EXP DBL_MIN_EXP
129 #define HS_DOUBLE_MIN_10_EXP DBL_MIN_10_EXP
130 #define HS_DOUBLE_MAX DBL_MAX
131 #define HS_DOUBLE_MAX_EXP DBL_MAX_EXP
132 #define HS_DOUBLE_MAX_10_EXP DBL_MAX_10_EXP