/* classes: h_files */
-#ifndef NUMBERSH
-#define NUMBERSH
+#ifndef SCM_NUMBERS_H
+#define SCM_NUMBERS_H
+
/* Copyright (C) 1995,1996,1998,2000,2001 Free Software Foundation, Inc.
- *
+ *
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2, or (at your option)
* any later version.
- *
+ *
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
- *
+ *
* You should have received a copy of the GNU General Public License
* along with this software; see the file COPYING. If not, write to
* the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
* whether to permit this exception to apply to your modifications.
* If you do not wish that, delete this exception notice. */
-/* Software engineering face-lift by Greg J. Badros, 11-Dec-1999,
- gjb@cs.washington.edu, http://www.cs.washington.edu/homes/gjb */
\f
#include "libguile/__scm.h"
#include "libguile/print.h"
+#if defined (HAVE_FLOATINGPOINT_H)
+#include <floatingpoint.h>
+#endif
+
+#if defined (HAVE_IEEEFP_H)
+#include <ieeefp.h>
+#endif
+
+#if defined (HAVE_NAN_H)
+#if defined (SCO)
+#define _IEEE 1
+#endif
+#include <nan.h>
+#if defined (SCO)
+#undef _IEEE
+#endif
+#endif
+
\f
-/* Immediate Numbers
- *
- * Inums are exact integer data that fits within an SCM word.
+/* Immediate Numbers, also known as fixnums
*
- * SCM_INUMP applies only to values known to be Scheme objects.
- * In particular, SCM_INUMP (SCM_CAR (x)) is valid only if x is known
- * to be a SCM_CONSP. If x is only known to be a SCM_NIMP,
- * SCM_INUMP (SCM_CAR (x)) can give wrong answers.
- */
+ * Inums are exact integer data that fits within an SCM word. */
-#define SCM_I_FIXNUM_BIT (SCM_LONG_BIT - 2)
-#define SCM_MOST_POSITIVE_FIXNUM ((1L << (SCM_I_FIXNUM_BIT - 1)) - 1)
-#define SCM_MOST_NEGATIVE_FIXNUM (-SCM_MOST_POSITIVE_FIXNUM - 1)
+/* SCM_T_SIGNED_MAX is (- (expt 2 n) 1),
+ * SCM_MOST_POSITIVE_FIXNUM should be (- (expt 2 (- n 2)) 1)
+ * which is the same as (/ (- (expt 2 n) 4) 4)
+ */
+#define SCM_I_FIXNUM_BIT (SCM_LONG_BIT - 2)
+#define SCM_MOST_POSITIVE_FIXNUM ((SCM_T_SIGNED_BITS_MAX-3)/4)
+#define SCM_MOST_NEGATIVE_FIXNUM (-SCM_MOST_POSITIVE_FIXNUM-1)
/* SCM_SRS is signed right shift */
#if (-1 == (((-1) << 2) + 2) >> 2)
-# define SCM_SRS(x, y) ((scm_signed_bits_t)(x) >> (y))
+# define SCM_SRS(x, y) ((x) >> (y))
#else
-# define SCM_SRS(x, y) ((SCM_UNPACK (x) < 0) ? ~((~SCM_UNPACK (x)) >> (y)) : (SCM_UNPACK (x) >> (y)))
+# define SCM_SRS(x, y) ((x) < 0 ? ~((~(x)) >> (y)) : ((x) >> (y)))
#endif /* (-1 == (((-1) << 2) + 2) >> 2) */
#define SCM_INUMP(x) (2 & SCM_UNPACK (x))
#define SCM_NINUMP(x) (!SCM_INUMP (x))
-#define SCM_MAKINUM(x) (SCM_PACK (((x) << 2) + 2L))
-#define SCM_INUM(x) ((scm_signed_bits_t)(SCM_SRS (SCM_UNPACK (x), 2)))
+#define SCM_MAKINUM(x) (SCM_PACK ((((scm_t_signed_bits) (x)) << 2) + 2))
+#define SCM_INUM(x) (SCM_SRS ((scm_t_signed_bits) SCM_UNPACK (x), 2))
/* SCM_FIXABLE is true if its long argument can be encoded in an SCM_INUM. */
#define SCM_POSFIXABLE(n) ((n) <= SCM_MOST_POSITIVE_FIXNUM)
#define SCM_NEGFIXABLE(n) ((n) >= SCM_MOST_NEGATIVE_FIXNUM)
-#define SCM_FIXABLE(n) (SCM_POSFIXABLE(n) && SCM_NEGFIXABLE(n))
+#define SCM_FIXABLE(n) (SCM_POSFIXABLE (n) && SCM_NEGFIXABLE (n))
/* A name for 0. */
#define SCM_INUM0 (SCM_MAKINUM (0))
-/* SCM_MAXEXP is the maximum double precision expontent
+/* SCM_MAXEXP is the maximum double precision exponent
* SCM_FLTMAX is less than or scm_equal the largest single precision float
*/
#define SCM_SLOPPY_INEXACTP(x) (SCM_TYP16S (x) == scm_tc16_real)
#define SCM_SLOPPY_REALP(x) (SCM_TYP16 (x) == scm_tc16_real)
#define SCM_SLOPPY_COMPLEXP(x) (SCM_TYP16 (x) == scm_tc16_complex)
-#define SCM_INEXACTP(x) (SCM_NIMP (x) && SCM_TYP16S (x) == scm_tc16_real)
-#define SCM_REALP(x) (SCM_NIMP (x) && SCM_TYP16 (x) == scm_tc16_real)
-#define SCM_COMPLEXP(x) (SCM_NIMP (x) && SCM_TYP16 (x) == scm_tc16_complex)
+#define SCM_INEXACTP(x) (!SCM_IMP (x) && SCM_TYP16S (x) == scm_tc16_real)
+#define SCM_REALP(x) (!SCM_IMP (x) && SCM_TYP16 (x) == scm_tc16_real)
+#define SCM_COMPLEXP(x) (!SCM_IMP (x) && SCM_TYP16 (x) == scm_tc16_complex)
-#define SCM_REAL_VALUE(x) (((scm_double_t *) SCM2PTR (x))->real)
-#define SCM_COMPLEX_MEM(x) ((scm_complex_t *) SCM_CELL_WORD_1 (x))
+#define SCM_REAL_VALUE(x) (((scm_t_double *) SCM2PTR (x))->real)
+#define SCM_COMPLEX_MEM(x) ((scm_t_complex *) SCM_CELL_WORD_1 (x))
#define SCM_COMPLEX_REAL(x) (SCM_COMPLEX_MEM (x)->real)
#define SCM_COMPLEX_IMAG(x) (SCM_COMPLEX_MEM (x)->imag)
#define SCM_BDIGITS(x) ((SCM_BIGDIG *) (SCM_CELL_WORD_1 (x)))
#define SCM_SET_BIGNUM_BASE(n, b) (SCM_SET_CELL_WORD_1 ((n), (b)))
#define SCM_NUMDIGS(x) ((size_t) (SCM_CELL_WORD_0 (x) >> SCM_BIGSIZEFIELD))
+#define SCM_MAKE_BIGNUM_TAG(v, sign) \
+ (scm_tc16_big \
+ | ((sign) ? SCM_BIGSIGNFLAG : 0) \
+ | (((v) + 0L) << SCM_BIGSIZEFIELD))
#define SCM_SETNUMDIGS(x, v, sign) \
- SCM_SET_CELL_WORD_0 (x, \
- scm_tc16_big \
- | ((sign) ? SCM_BIGSIGNFLAG : 0) \
- | (((v) + 0L) << SCM_BIGSIZEFIELD))
+ SCM_SET_CELL_WORD_0 (x, SCM_MAKE_BIGNUM_TAG (v, sign))
\f
-typedef struct scm_double_t
+typedef struct scm_t_double
{
SCM type;
SCM pad;
double real;
-} scm_double_t;
+} scm_t_double;
-typedef struct scm_complex_t
+typedef struct scm_t_complex
{
double real;
double imag;
-} scm_complex_t;
+} scm_t_complex;
\f
-extern SCM scm_exact_p (SCM x);
-extern SCM scm_odd_p (SCM n);
-extern SCM scm_even_p (SCM n);
-extern SCM scm_abs (SCM x);
-extern SCM scm_quotient (SCM x, SCM y);
-extern SCM scm_remainder (SCM x, SCM y);
-extern SCM scm_modulo (SCM x, SCM y);
-extern SCM scm_gcd (SCM x, SCM y);
-extern SCM scm_lcm (SCM n1, SCM n2);
-extern SCM scm_logand (SCM n1, SCM n2);
-extern SCM scm_logior (SCM n1, SCM n2);
-extern SCM scm_logxor (SCM n1, SCM n2);
-extern SCM scm_logtest (SCM n1, SCM n2);
-extern SCM scm_logbit_p (SCM n1, SCM n2);
-extern SCM scm_lognot (SCM n);
-extern SCM scm_integer_expt (SCM z1, SCM z2);
-extern SCM scm_ash (SCM n, SCM cnt);
-extern SCM scm_bit_extract (SCM n, SCM start, SCM end);
-extern SCM scm_logcount (SCM n);
-extern SCM scm_integer_length (SCM n);
-extern SCM scm_i_mkbig (size_t nlen, int sign);
-extern SCM scm_i_big2inum (SCM b, size_t l);
-extern SCM scm_i_adjbig (SCM b, size_t nlen);
-extern SCM scm_i_normbig (SCM b);
-extern SCM scm_i_copybig (SCM b, int sign);
-extern SCM scm_i_short2big (short n);
-extern SCM scm_i_ushort2big (unsigned short n);
-extern SCM scm_i_int2big (int n);
-extern SCM scm_i_uint2big (unsigned int n);
-extern SCM scm_i_long2big (long n);
-extern SCM scm_i_ulong2big (unsigned long n);
-extern SCM scm_i_size2big (size_t n);
-extern SCM scm_i_ptrdiff2big (ptrdiff_t n);
-
-
-#if (SCM_DEBUG_DEPRECATED == 0)
-extern SCM scm_big2inum (SCM b, size_t l);
-extern SCM scm_mkbig (size_t nlen, int sign);
-extern SCM scm_adjbig (SCM b, size_t len);
-extern SCM scm_normbig (SCM b);
-extern SCM scm_copybig (SCM b, int sign);
-
-#define SCM_FIXNUM_BIT SCM_I_FIXNUM_BIT
-#endif
+SCM_API SCM scm_exact_p (SCM x);
+SCM_API SCM scm_odd_p (SCM n);
+SCM_API SCM scm_even_p (SCM n);
+SCM_API SCM scm_inf_p (SCM n);
+SCM_API SCM scm_nan_p (SCM n);
+SCM_API SCM scm_inf (void);
+SCM_API SCM scm_nan (void);
+SCM_API SCM scm_abs (SCM x);
+SCM_API SCM scm_quotient (SCM x, SCM y);
+SCM_API SCM scm_remainder (SCM x, SCM y);
+SCM_API SCM scm_modulo (SCM x, SCM y);
+SCM_API SCM scm_gcd (SCM x, SCM y);
+SCM_API SCM scm_lcm (SCM n1, SCM n2);
+SCM_API SCM scm_logand (SCM n1, SCM n2);
+SCM_API SCM scm_logior (SCM n1, SCM n2);
+SCM_API SCM scm_logxor (SCM n1, SCM n2);
+SCM_API SCM scm_logtest (SCM n1, SCM n2);
+SCM_API SCM scm_logbit_p (SCM n1, SCM n2);
+SCM_API SCM scm_lognot (SCM n);
+SCM_API SCM scm_integer_expt (SCM z1, SCM z2);
+SCM_API SCM scm_ash (SCM n, SCM cnt);
+SCM_API SCM scm_bit_extract (SCM n, SCM start, SCM end);
+SCM_API SCM scm_logcount (SCM n);
+SCM_API SCM scm_integer_length (SCM n);
+SCM_API SCM scm_i_mkbig (size_t nlen, int sign);
+SCM_API SCM scm_i_big2inum (SCM b, size_t l);
+SCM_API SCM scm_i_adjbig (SCM b, size_t nlen);
+SCM_API SCM scm_i_normbig (SCM b);
+SCM_API SCM scm_i_copybig (SCM b, int sign);
+SCM_API SCM scm_i_short2big (short n);
+SCM_API SCM scm_i_ushort2big (unsigned short n);
+SCM_API SCM scm_i_int2big (int n);
+SCM_API SCM scm_i_uint2big (unsigned int n);
+SCM_API SCM scm_i_long2big (long n);
+SCM_API SCM scm_i_ulong2big (unsigned long n);
+SCM_API SCM scm_i_size2big (size_t n);
+SCM_API SCM scm_i_ptrdiff2big (ptrdiff_t n);
#ifdef HAVE_LONG_LONGS
-extern SCM scm_i_long_long2big (long long n);
-extern SCM scm_i_ulong_long2big (unsigned long long n);
+SCM_API SCM scm_i_long_long2big (long long n);
+SCM_API SCM scm_i_ulong_long2big (unsigned long long n);
#endif
-#if (SCM_DEBUG_DEPRECATED == 0)
-extern SCM scm_2ulong2big (unsigned long * np);
-#endif
-
-extern int scm_bigcomp (SCM x, SCM y);
-extern long scm_pseudolong (long x);
-extern void scm_longdigs (long x, SCM_BIGDIG digs[]);
-extern SCM scm_addbig (SCM_BIGDIG *x, size_t nx, int xsgn, SCM bigy, int sgny);
-extern SCM scm_mulbig (SCM_BIGDIG *x, size_t nx, SCM_BIGDIG *y, size_t ny, int sgn);
-extern unsigned int scm_divbigdig (SCM_BIGDIG *ds, size_t h, SCM_BIGDIG div);
-extern size_t scm_iint2str (long num, int rad, char *p);
-extern SCM scm_number_to_string (SCM x, SCM radix);
-extern int scm_print_real (SCM sexp, SCM port, scm_print_state *pstate);
-extern int scm_print_complex (SCM sexp, SCM port, scm_print_state *pstate);
-extern int scm_bigprint (SCM exp, SCM port, scm_print_state *pstate);
-extern SCM scm_istr2int (char *str, long len, long radix);
-extern SCM scm_istr2flo (char *str, long len, long radix);
-extern SCM scm_istring2number (char *str, long len, long radix);
-extern SCM scm_string_to_number (SCM str, SCM radix);
-extern SCM scm_make_real (double x);
-extern SCM scm_make_complex (double x, double y);
-extern SCM scm_bigequal (SCM x, SCM y);
-extern SCM scm_real_equalp (SCM x, SCM y);
-extern SCM scm_complex_equalp (SCM x, SCM y);
-extern SCM scm_number_p (SCM x);
-extern SCM scm_real_p (SCM x);
-extern SCM scm_integer_p (SCM x);
-extern SCM scm_inexact_p (SCM x);
-extern SCM scm_num_eq_p (SCM x, SCM y);
-extern SCM scm_less_p (SCM x, SCM y);
-extern SCM scm_gr_p (SCM x, SCM y);
-extern SCM scm_leq_p (SCM x, SCM y);
-extern SCM scm_geq_p (SCM x, SCM y);
-extern SCM scm_zero_p (SCM z);
-extern SCM scm_positive_p (SCM x);
-extern SCM scm_negative_p (SCM x);
-extern SCM scm_max (SCM x, SCM y);
-extern SCM scm_min (SCM x, SCM y);
-extern SCM scm_sum (SCM x, SCM y);
-extern SCM scm_difference (SCM x, SCM y);
-extern SCM scm_product (SCM x, SCM y);
-extern double scm_num2dbl (SCM a, const char * why);
-extern SCM scm_divide (SCM x, SCM y);
-extern double scm_asinh (double x);
-extern double scm_acosh (double x);
-extern double scm_atanh (double x);
-extern double scm_truncate (double x);
-extern double scm_round (double x);
-extern double scm_exact_to_inexact (double z);
-extern SCM scm_sys_expt (SCM z1, SCM z2);
-extern SCM scm_sys_atan2 (SCM z1, SCM z2);
-extern SCM scm_make_rectangular (SCM z1, SCM z2);
-extern SCM scm_make_polar (SCM z1, SCM z2);
-extern SCM scm_real_part (SCM z);
-extern SCM scm_imag_part (SCM z);
-extern SCM scm_magnitude (SCM z);
-extern SCM scm_angle (SCM z);
-extern SCM scm_inexact_to_exact (SCM z);
-extern SCM scm_trunc (SCM x);
-extern SCM scm_i_dbl2big (double d);
-
-#if (SCM_DEBUG_DEPRECATED == 0)
-extern SCM scm_dbl2big (double d);
+SCM_API int scm_bigcomp (SCM x, SCM y);
+SCM_API long scm_pseudolong (long x);
+SCM_API void scm_longdigs (long x, SCM_BIGDIG digs[]);
+SCM_API SCM scm_addbig (SCM_BIGDIG *x, size_t nx, int xsgn, SCM bigy, int sgny);
+SCM_API SCM scm_mulbig (SCM_BIGDIG *x, size_t nx, SCM_BIGDIG *y, size_t ny, int sgn);
+SCM_API unsigned int scm_divbigdig (SCM_BIGDIG *ds, size_t h, SCM_BIGDIG div);
+SCM_API size_t scm_iint2str (long num, int rad, char *p);
+SCM_API SCM scm_number_to_string (SCM x, SCM radix);
+SCM_API int scm_print_real (SCM sexp, SCM port, scm_print_state *pstate);
+SCM_API int scm_print_complex (SCM sexp, SCM port, scm_print_state *pstate);
+SCM_API int scm_bigprint (SCM exp, SCM port, scm_print_state *pstate);
+SCM_API SCM scm_i_mem2number (const char *mem, size_t len, unsigned int radix);
+SCM_API SCM scm_string_to_number (SCM str, SCM radix);
+SCM_API SCM scm_make_real (double x);
+SCM_API SCM scm_make_complex (double x, double y);
+SCM_API SCM scm_bigequal (SCM x, SCM y);
+SCM_API SCM scm_real_equalp (SCM x, SCM y);
+SCM_API SCM scm_complex_equalp (SCM x, SCM y);
+SCM_API SCM scm_number_p (SCM x);
+SCM_API SCM scm_real_p (SCM x);
+SCM_API SCM scm_integer_p (SCM x);
+SCM_API SCM scm_inexact_p (SCM x);
+SCM_API SCM scm_num_eq_p (SCM x, SCM y);
+SCM_API SCM scm_less_p (SCM x, SCM y);
+SCM_API SCM scm_gr_p (SCM x, SCM y);
+SCM_API SCM scm_leq_p (SCM x, SCM y);
+SCM_API SCM scm_geq_p (SCM x, SCM y);
+SCM_API SCM scm_zero_p (SCM z);
+SCM_API SCM scm_positive_p (SCM x);
+SCM_API SCM scm_negative_p (SCM x);
+SCM_API SCM scm_max (SCM x, SCM y);
+SCM_API SCM scm_min (SCM x, SCM y);
+SCM_API SCM scm_sum (SCM x, SCM y);
+SCM_API SCM scm_difference (SCM x, SCM y);
+SCM_API SCM scm_product (SCM x, SCM y);
+SCM_API double scm_num2dbl (SCM a, const char * why);
+SCM_API SCM scm_divide (SCM x, SCM y);
+SCM_API double scm_asinh (double x);
+SCM_API double scm_acosh (double x);
+SCM_API double scm_atanh (double x);
+SCM_API double scm_truncate (double x);
+SCM_API double scm_round (double x);
+SCM_API SCM scm_sys_expt (SCM z1, SCM z2);
+SCM_API SCM scm_sys_atan2 (SCM z1, SCM z2);
+SCM_API SCM scm_make_rectangular (SCM z1, SCM z2);
+SCM_API SCM scm_make_polar (SCM z1, SCM z2);
+SCM_API SCM scm_real_part (SCM z);
+SCM_API SCM scm_imag_part (SCM z);
+SCM_API SCM scm_magnitude (SCM z);
+SCM_API SCM scm_angle (SCM z);
+SCM_API SCM scm_exact_to_inexact (SCM z);
+SCM_API SCM scm_inexact_to_exact (SCM z);
+SCM_API SCM scm_trunc (SCM x);
+SCM_API SCM scm_i_dbl2big (double d);
+SCM_API double scm_i_big2dbl (SCM b);
+
+SCM_API SCM scm_short2num (short n);
+SCM_API SCM scm_ushort2num (unsigned short n);
+SCM_API SCM scm_int2num (int n);
+SCM_API SCM scm_uint2num (unsigned int n);
+SCM_API SCM scm_long2num (long n);
+SCM_API SCM scm_ulong2num (unsigned long n);
+SCM_API SCM scm_size2num (size_t n);
+SCM_API SCM scm_ptrdiff2num (ptrdiff_t n);
+SCM_API short scm_num2short (SCM num, unsigned long int pos,
+ const char *s_caller);
+SCM_API unsigned short scm_num2ushort (SCM num, unsigned long int pos,
+ const char *s_caller);
+SCM_API int scm_num2int (SCM num, unsigned long int pos,
+ const char *s_caller);
+SCM_API unsigned int scm_num2uint (SCM num, unsigned long int pos,
+ const char *s_caller);
+SCM_API long scm_num2long (SCM num, unsigned long int pos,
+ const char *s_caller);
+SCM_API unsigned long scm_num2ulong (SCM num, unsigned long int pos,
+ const char *s_caller);
+SCM_API ptrdiff_t scm_num2ptrdiff (SCM num, unsigned long int pos,
+ const char *s_caller);
+SCM_API size_t scm_num2size (SCM num, unsigned long int pos,
+ const char *s_caller);
+#ifdef HAVE_LONG_LONGS
+SCM_API SCM scm_long_long2num (long long sl);
+SCM_API SCM scm_ulong_long2num (unsigned long long sl);
+SCM_API long long scm_num2long_long (SCM num, unsigned long int pos,
+ const char *s_caller);
+SCM_API unsigned long long scm_num2ulong_long (SCM num, unsigned long int pos,
+ const char *s_caller);
#endif
-extern double scm_i_big2dbl (SCM b);
+SCM_API SCM scm_float2num (float n);
+SCM_API SCM scm_double2num (double n);
+SCM_API float scm_num2float (SCM num, unsigned long int pos,
+ const char *s_caller);
+SCM_API double scm_num2double (SCM num, unsigned long int pos,
+ const char *s_caller);
-#if (SCM_DEBUG_DEPRECATED == 0)
-extern double scm_big2dbl (SCM b);
-#endif
-
-extern SCM scm_short2num (short n);
-extern SCM scm_ushort2num (unsigned short n);
-extern SCM scm_int2num (int n);
-extern SCM scm_uint2num (unsigned int n);
-extern SCM scm_long2num (long n);
-extern SCM scm_ulong2num (unsigned long n);
-extern SCM scm_size2num (size_t n);
-extern SCM scm_ptrdiff2num (ptrdiff_t n);
-extern short scm_num2short (SCM num, unsigned long int pos,
- const char *s_caller);
-extern unsigned short scm_num2ushort (SCM num, unsigned long int pos,
- const char *s_caller);
-extern int scm_num2int (SCM num, unsigned long int pos,
- const char *s_caller);
-extern unsigned int scm_num2uint (SCM num, unsigned long int pos,
- const char *s_caller);
-extern long scm_num2long (SCM num, unsigned long int pos,
- const char *s_caller);
-extern unsigned long scm_num2ulong (SCM num, unsigned long int pos,
- const char *s_caller);
-extern ptrdiff_t scm_num2ptrdiff (SCM num, unsigned long int pos,
- const char *s_caller);
-extern size_t scm_num2size (SCM num, unsigned long int pos,
- const char *s_caller);
-#ifdef HAVE_LONG_LONGS
-extern SCM scm_long_long2num (long long sl);
-extern SCM scm_ulong_long2num (unsigned long long sl);
-extern long long scm_num2long_long (SCM num, unsigned long int pos,
- const char *s_caller);
-extern unsigned long long scm_num2ulong_long (SCM num, unsigned long int pos,
- const char *s_caller);
+#ifdef GUILE_DEBUG
+SCM_API SCM scm_sys_check_number_conversions (void);
#endif
-extern void scm_init_numbers (void);
+SCM_API void scm_init_numbers (void);
-#endif /* NUMBERSH */
+#endif /* SCM_NUMBERS_H */
/*
Local Variables:
HCoop / bpt / guile.git / blobdiff