/* -----------------------------------------------------------------------------
- * $Id: HsFFI.h,v 1.1 2000/04/05 15:20:41 panne Exp $
+ * $Id: HsFFI.h,v 1.2 2000/04/06 13:40:15 panne Exp $
*
* (c) The GHC Team, 2000
*
* A mapping for Haskell types to C types, including the corresponding bounds.
* Intended to be used in conjuction with the FFI.
*
+ * WARNING: Keep this file and StgTypes.h in synch!
+ *
* ---------------------------------------------------------------------------*/
#ifndef HSFFI_H
#include "StgTypes.h"
/* get limits for integral types */
-/* NOTE: This is currently not as portable as it should be. Another route
- would be including limits.h plus some #ifdef magic around the bounds of
- types without a specified size. */
+#ifdef HAVE_STDINT_H
+/* ISO C 99 requires this */
+#define __STDC_LIMIT_MACROS
#include <stdint.h>
+#else
+/* second best guess (e.g. on Solaris) */
+#include <limits.h>
+#endif
+
+/* if we had no luck, let's do it for ourselves (assuming 64bit long longs) */
+#ifndef INT8_MIN
+#define INT8_MIN (-128)
+#define INT16_MIN (-32767-1)
+#define INT32_MIN (-2147483647-1)
+#define INT64_MIN (-9223372036854775807LL-1)
+#define INT8_MAX (127)
+#define INT16_MAX (32767)
+#define INT32_MAX (2147483647)
+#define INT64_MAX (9223372036854775807LL)
+#define UINT8_MAX (255U)
+#define UINT16_MAX (65535U)
+#define UINT32_MAX (4294967295U)
+#define UINT64_MAX (18446744073709551615ULL)
+#endif
/* get limits for floating point types */
#include <float.h>
-typedef StgChar HsChar;
-typedef StgInt HsInt;
-typedef StgInt8 HsInt8;
-typedef StgInt16 HsInt16;
-typedef StgInt32 HsInt32;
-typedef StgInt64 HsInt64;
-typedef StgWord8 HsWord8;
-typedef StgWord16 HsWord16;
-typedef StgWord32 HsWord32;
-typedef StgWord64 HsWord64;
-typedef StgFloat HsFloat;
-typedef StgDouble HsDouble;
-typedef StgBool HsBool;
-typedef void* HsAddr; /* this should better match StgAddr */
-typedef void* HsForeignObj; /* ... and this StgForeignPtr */
-typedef void* HsStablePtr; /* NOTE: THIS IS CURRENTLY WRONG!!! */
+typedef StgChar HsChar;
+typedef StgInt HsInt;
+typedef StgInt8 HsInt8;
+typedef StgInt16 HsInt16;
+typedef StgInt32 HsInt32;
+typedef StgInt64 HsInt64;
+typedef StgWord8 HsWord8;
+typedef StgWord16 HsWord16;
+typedef StgWord32 HsWord32;
+typedef StgWord64 HsWord64;
+typedef StgFloat HsFloat;
+typedef StgDouble HsDouble;
+typedef StgBool HsBool;
+typedef void* HsAddr; /* this should better match StgAddr */
+typedef void* HsForeignObj; /* ... and this StgForeignPtr */
+typedef void* HsStablePtr; /* NOTE: THIS IS CURRENTLY WRONG!!! */
/* this should correspond to the type of StgChar in StgTypes.h */
-#define HS_CHAR_MIN 0
-#define HS_CHAR_MAX UINT8_MAX
+#define HS_CHAR_MIN (0)
+#define HS_CHAR_MAX UINT8_MAX
/* this mirrors the distinction of cases in StgTypes.h */
#if SIZEOF_VOID_P == 8
-#define HS_INT_MIN INT64_MIN
-#define HS_INT_MAX INT64_MAX
+#define HS_INT_MIN INT64_MIN
+#define HS_INT_MAX INT64_MAX
#elif SIZEOF_VOID_P == 4
-#define HS_INT_MIN INT32_MIN
-#define HS_INT_MAX INT32_MAX
+#define HS_INT_MIN INT32_MIN
+#define HS_INT_MAX INT32_MAX
#else
#error GHC untested on this architecture: sizeof(void *) != 4 or 8
#endif
-#define HS_INT8_MIN INT8_MIN
-#define HS_INT8_MAX INT8_MAX
-#define HS_INT16_MIN INT16_MIN
-#define HS_INT16_MAX INT16_MAX
-#define HS_INT32_MIN INT32_MIN
-#define HS_INT32_MAX INT32_MAX
-#define HS_INT64_MIN INT64_MIN
-#define HS_INT64_MAX INT64_MAX
-#define HS_WORD8_MAX UINT8_MAX
-#define HS_WORD16_MAX UINT16_MAX
-#define HS_WORD32_MAX UINT32_MAX
-#define HS_WORD64_MAX UINT64_MAX
+#define HS_INT8_MIN INT8_MIN
+#define HS_INT8_MAX INT8_MAX
+#define HS_INT16_MIN INT16_MIN
+#define HS_INT16_MAX INT16_MAX
+#define HS_INT32_MIN INT32_MIN
+#define HS_INT32_MAX INT32_MAX
+#define HS_INT64_MIN INT64_MIN
+#define HS_INT64_MAX INT64_MAX
+#define HS_WORD8_MAX UINT8_MAX
+#define HS_WORD16_MAX UINT16_MAX
+#define HS_WORD32_MAX UINT32_MAX
+#define HS_WORD64_MAX UINT64_MAX
#ifdef FLOATS_AS_DOUBLES
-#define HS_FLOAT_RADIX DBL_RADIX
-#define HS_FLOAT_ROUNDS DBL_ROUNDS
-#define HS_FLOAT_EPSILON DBL_EPSILON
-#define HS_FLOAT_DIG DBL_DIG
-#define HS_FLOAT_MANT_DIG DBL_MANT_DIG
-#define HS_FLOAT_MIN DBL_MIN
-#define HS_FLOAT_MIN_EXP DBL_MIN_EXP
-#define HS_FLOAT_MIN_10_EXP DBL_MIN_10_EXP
-#define HS_FLOAT_MAX DBL_MAX
-#define HS_FLOAT_MAX_EXP DBL_MAX_EXP
-#define HS_FLOAT_MAX_10_EXP DBL_MAX_10_EXP
+#define HS_FLOAT_RADIX DBL_RADIX
+#define HS_FLOAT_ROUNDS DBL_ROUNDS
+#define HS_FLOAT_EPSILON DBL_EPSILON
+#define HS_FLOAT_DIG DBL_DIG
+#define HS_FLOAT_MANT_DIG DBL_MANT_DIG
+#define HS_FLOAT_MIN DBL_MIN
+#define HS_FLOAT_MIN_EXP DBL_MIN_EXP
+#define HS_FLOAT_MIN_10_EXP DBL_MIN_10_EXP
+#define HS_FLOAT_MAX DBL_MAX
+#define HS_FLOAT_MAX_EXP DBL_MAX_EXP
+#define HS_FLOAT_MAX_10_EXP DBL_MAX_10_EXP
#else
-#define HS_FLOAT_RADIX FLT_RADIX
-#define HS_FLOAT_ROUNDS FLT_ROUNDS
-#define HS_FLOAT_EPSILON FLT_EPSILON
-#define HS_FLOAT_DIG FLT_DIG
-#define HS_FLOAT_MANT_DIG FLT_MANT_DIG
-#define HS_FLOAT_MIN FLT_MIN
-#define HS_FLOAT_MIN_EXP FLT_MIN_EXP
-#define HS_FLOAT_MIN_10_EXP FLT_MIN_10_EXP
-#define HS_FLOAT_MAX FLT_MAX
-#define HS_FLOAT_MAX_EXP FLT_MAX_EXP
-#define HS_FLOAT_MAX_10_EXP FLT_MAX_10_EXP
+#define HS_FLOAT_RADIX FLT_RADIX
+#define HS_FLOAT_ROUNDS FLT_ROUNDS
+#define HS_FLOAT_EPSILON FLT_EPSILON
+#define HS_FLOAT_DIG FLT_DIG
+#define HS_FLOAT_MANT_DIG FLT_MANT_DIG
+#define HS_FLOAT_MIN FLT_MIN
+#define HS_FLOAT_MIN_EXP FLT_MIN_EXP
+#define HS_FLOAT_MIN_10_EXP FLT_MIN_10_EXP
+#define HS_FLOAT_MAX FLT_MAX
+#define HS_FLOAT_MAX_EXP FLT_MAX_EXP
+#define HS_FLOAT_MAX_10_EXP FLT_MAX_10_EXP
#endif /* FLOATS_AS_DOUBLES */
-#define HS_DOUBLE_RADIX DBL_RADIX
-#define HS_DOUBLE_ROUNDS DBL_ROUNDS
-#define HS_DOUBLE_EPSILON DBL_EPSILON
-#define HS_DOUBLE_DIG DBL_DIG
-#define HS_DOUBLE_MANT_DIG DBL_MANT_DIG
-#define HS_DOUBLE_MIN DBL_MIN
-#define HS_DOUBLE_MIN_EXP DBL_MIN_EXP
-#define HS_DOUBLE_MIN_10_EXP DBL_MIN_10_EXP
-#define HS_DOUBLE_MAX DBL_MAX
-#define HS_DOUBLE_MAX_EXP DBL_MAX_EXP
-#define HS_DOUBLE_MAX_10_EXP DBL_MAX_10_EXP
+#define HS_DOUBLE_RADIX DBL_RADIX
+#define HS_DOUBLE_ROUNDS DBL_ROUNDS
+#define HS_DOUBLE_EPSILON DBL_EPSILON
+#define HS_DOUBLE_DIG DBL_DIG
+#define HS_DOUBLE_MANT_DIG DBL_MANT_DIG
+#define HS_DOUBLE_MIN DBL_MIN
+#define HS_DOUBLE_MIN_EXP DBL_MIN_EXP
+#define HS_DOUBLE_MIN_10_EXP DBL_MIN_10_EXP
+#define HS_DOUBLE_MAX DBL_MAX
+#define HS_DOUBLE_MAX_EXP DBL_MAX_EXP
+#define HS_DOUBLE_MAX_10_EXP DBL_MAX_10_EXP
#endif /* HSFFI_H */
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