/* Old async mechanism */
/* #define GUILE_OLD_ASYNC_CLICK */
-/* New scheme for garbage collection */
-#define GUILE_NEW_GC_SCHEME
-
/* #define GUILE_DEBUG_FREELIST */
/* If the compile FLAG `SCM_CAUTIOUS' is #defined then the number of
*/
#define BIGNUMS
-/* GC should relinquish empty cons-pair arenas.
- */
-#ifndef GUILE_NEW_GC_SCHEME
-#define GC_FREE_SEGMENTS
-#endif
+/* GC should relinquish empty cons-pair arenas. */
+/* cmm:FIXME look at this after done mangling the GC */
+/* #define GC_FREE_SEGMENTS */
/* Provide a scheme-accessible count-down timer that
* generates a pseudo-interrupt.
#define SCM_DEBUG 0
#endif
+/* If SCM_DEBUG_CELL_ACCESSES is set to 1, cell accesses will perform
+ * exhaustive parameter checking: It will be verified that cell parameters
+ * actually point to a valid heap cell. Note: If this option is enabled,
+ * guile will run about ten times slower than normally.
+ */
+#ifndef SCM_DEBUG_CELL_ACCESSES
+#define SCM_DEBUG_CELL_ACCESSES SCM_DEBUG
+#endif
+
/* If SCM_DEBUG_DEPRECATED is set to 1, deprecated code is not compiled. This
* can be used by developers to get rid of references to deprecated code.
*/
#define SCM_DEBUG_DEPRECATED SCM_DEBUG
#endif
-/* If SCM_DEBUG_REST_ARGUMENTS is set to 1, functions that take rest arguments
- * will check whether the rest arguments actually form a proper list.
- * Otherwise it is assumed that the rest arguments form a proper list and only
- * the parameters themselves, which are given as rest arguments, are checked.
+/* If SCM_DEBUG_REST_ARGUMENT is set to 1, functions that take rest arguments
+ * will check whether the rest arguments are actually passed as a proper list.
+ * Otherwise, if SCM_DEBUG_REST_ARGUMENT is 0, functions that take rest
+ * arguments will take it for granted that these are passed as a proper list.
*/
-#ifndef SCM_DEBUG_REST_ARGUMENTS
-#define SCM_DEBUG_REST_ARGUMENTS SCM_DEBUG
+#ifndef SCM_DEBUG_REST_ARGUMENT
+#define SCM_DEBUG_REST_ARGUMENT SCM_DEBUG
#endif
/* Use this for _compile time_ type checking only, since the compiled result
\f
-/* Define
+/* {Architecture and compiler properties}
*
- * SCM_CHAR_CODE_LIMIT == UCHAR_MAX + 1
- * SCM_MOST_POSITIVE_FIXNUM (LONG_MAX>>2)
- * SCM_MOST_NEGATIVE_FIXNUM == SCM_SRS((long)LONG_MIN, 2)
+ * Guile as of today can only work on systems which fulfill at least the
+ * following requirements:
+ * - long ints have at least 32 bits.
+ * Guile's type system is based on this assumption.
+ * - long ints consist of at least four characters.
+ * It is assumed that cells, i. e. pairs of long ints, are eight character
+ * aligned, because three bits of a cell pointer are used for type data.
+ * - sizeof (void*) == sizeof (long int)
+ * Pointers are stored in SCM objects, and sometimes SCM objects are passed
+ * as void*. Thus, there has to be a one-to-one correspondence.
+ * - numbers are encoded using two's complement.
+ * The implementation of the bitwise scheme level operations is based on
+ * this assumption.
+ * - ... add more
*/
#ifdef HAVE_LIMITS_H
# include <limits.h>
-# ifdef UCHAR_MAX
-# define SCM_CHAR_CODE_LIMIT (UCHAR_MAX+1L)
-# else
-# define SCM_CHAR_CODE_LIMIT 256L
-# endif /* def UCHAR_MAX */
-# define SCM_MOST_POSITIVE_FIXNUM (LONG_MAX>>2)
-# ifdef _UNICOS /* Stupid cray bug */
-# define SCM_MOST_NEGATIVE_FIXNUM ((long)LONG_MIN/4)
-# else
-# define SCM_MOST_NEGATIVE_FIXNUM SCM_SRS((long)LONG_MIN, 2)
-# endif /* UNICOS */
+#endif
+
+#ifdef CHAR_BIT
+# define SCM_CHAR_BIT CHAR_BIT
+#else
+# define SCM_CHAR_BIT 8
+#endif
+
+#ifdef LONG_BIT
+# define SCM_LONG_BIT LONG_BIT
+#else
+# define SCM_LONG_BIT (SCM_CHAR_BIT * sizeof (long) / sizeof (char))
+#endif
+
+#ifdef UCHAR_MAX
+# define SCM_CHAR_CODE_LIMIT (UCHAR_MAX + 1L)
#else
# define SCM_CHAR_CODE_LIMIT 256L
-# define SCM_MOST_POSITIVE_FIXNUM ((long)((unsigned long)~0L>>3))
-# if (0 != ~0)
-# define SCM_MOST_NEGATIVE_FIXNUM (-SCM_MOST_POSITIVE_FIXNUM-1)
-# else
-# define SCM_MOST_NEGATIVE_FIXNUM (-SCM_MOST_POSITIVE_FIXNUM)
-# endif /* (0 != ~0) */
-#endif /* def HAVE_LIMITS_H */
+#endif
+
\f
#ifdef STDC_HEADERS
#ifdef SCM_RECKLESS
#define SCM_ASSERT(_cond, _arg, _pos, _subr)
-#define SCM_ASSERT_TYPE(_cond, _arg, _pos, _subr)
+#define SCM_ASSERT_TYPE(_cond, _arg, _pos, _subr, _msg)
#define SCM_ASRTGO(_cond, _label)
#else
#define SCM_ASSERT(_cond, _arg, _pos, _subr) \
#define SCM_ARG5 5
#define SCM_ARG6 6
#define SCM_ARG7 7
- /* #define SCM_ARGERR(X) ((X) < SCM_WNA \
- ? (char *)(X) \
- : "wrong type argument")
- */
-/* Following must match entry indexes in scm_errmsgs[].
- * Also, SCM_WNA must follow the last SCM_ARGn in sequence.
+/* SCM_WNA must follow the last SCM_ARGn in sequence.
*/
#define SCM_WNA 8
- /* #define SCM_OVSCM_FLOW 9 */
-#define SCM_OUTOFRANGE 10
-#define SCM_NALLOC 11
- /* #define SCM_STACK_OVFLOW 12 */
- /* #define SCM_EXIT 13 */
-#endif /* SCM_MAGIC_SNARFER */
+#if (SCM_DEBUG_DEPRECATED == 0)
-/* (...still matching scm_errmsgs) These
- * are signals. Signals may become errors
- * but are distinguished because they first
- * try to invoke a handler that can resume
- * the interrupted routine.
- */
-#define SCM_HUP_SIGNAL 14
-#define SCM_INT_SIGNAL 15
-#define SCM_FPE_SIGNAL 16
-#define SCM_BUS_SIGNAL 17
-#define SCM_SEGV_SIGNAL 18
-#define SCM_ALRM_SIGNAL 19
-#define SCM_GC_SIGNAL 20
-#define SCM_TICK_SIGNAL 21
-
-#define SCM_SIG_ORD(X) ((X) - SCM_HUP_SIGNAL)
-#define SCM_ORD_SIG(X) ((X) + SCM_HUP_SIGNAL)
-#define SCM_NUM_SIGS (SCM_SIG_ORD (SCM_TICK_SIGNAL) + 1)
-
-#if 0
-struct errdesc
-{
- char *msg;
- char *s_response;
- short parent_err;
-};
-
-
-extern struct errdesc scm_errmsgs[];
-#endif
+/* Use SCM_ASSERT_RANGE or SCM_VALIDATE_XXX_RANGE instead of: */
+#define SCM_OUTOFRANGE 10
+
+/* Use scm_memory_error instead of: */
+#define SCM_NALLOC 11
+
+#define SCM_HUP_SIGNAL 14
+#define SCM_INT_SIGNAL 15
+#define SCM_FPE_SIGNAL 16
+#define SCM_BUS_SIGNAL 17
+#define SCM_SEGV_SIGNAL 18
+#define SCM_ALRM_SIGNAL 19
+#define SCM_GC_SIGNAL 20
+#define SCM_TICK_SIGNAL 21
+#define SCM_SIG_ORD(X) ((X) - SCM_HUP_SIGNAL)
+#define SCM_ORD_SIG(X) ((X) + SCM_HUP_SIGNAL)
+#define SCM_NUM_SIGS (SCM_SIG_ORD (SCM_TICK_SIGNAL) + 1)
+
+#endif /* SCM_DEBUG_DEPRECATED == 0 */
+
+#endif /* SCM_MAGIC_SNARFER */
\f
#endif /* def vms */
#endif /* ndef SCM_EXIT_FAILURE */
-
-
\f
#endif /* __SCMH */
HCoop / bpt / guile.git / blobdiff