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0f2d19dd JB |
1 | /* classes: h_files */ |
2 | ||
3 | #ifndef NUMBERSH | |
4 | #define NUMBERSH | |
7a58e59f | 5 | /* Copyright (C) 1995, 1996, 1998, 2000 Free Software Foundation, Inc. |
0f2d19dd JB |
6 | * |
7 | * This program is free software; you can redistribute it and/or modify | |
8 | * it under the terms of the GNU General Public License as published by | |
9 | * the Free Software Foundation; either version 2, or (at your option) | |
10 | * any later version. | |
11 | * | |
12 | * This program is distributed in the hope that it will be useful, | |
13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | * GNU General Public License for more details. | |
16 | * | |
17 | * You should have received a copy of the GNU General Public License | |
18 | * along with this software; see the file COPYING. If not, write to | |
82892bed JB |
19 | * the Free Software Foundation, Inc., 59 Temple Place, Suite 330, |
20 | * Boston, MA 02111-1307 USA | |
0f2d19dd JB |
21 | * |
22 | * As a special exception, the Free Software Foundation gives permission | |
23 | * for additional uses of the text contained in its release of GUILE. | |
24 | * | |
25 | * The exception is that, if you link the GUILE library with other files | |
26 | * to produce an executable, this does not by itself cause the | |
27 | * resulting executable to be covered by the GNU General Public License. | |
28 | * Your use of that executable is in no way restricted on account of | |
29 | * linking the GUILE library code into it. | |
30 | * | |
31 | * This exception does not however invalidate any other reasons why | |
32 | * the executable file might be covered by the GNU General Public License. | |
33 | * | |
34 | * This exception applies only to the code released by the | |
35 | * Free Software Foundation under the name GUILE. If you copy | |
36 | * code from other Free Software Foundation releases into a copy of | |
37 | * GUILE, as the General Public License permits, the exception does | |
38 | * not apply to the code that you add in this way. To avoid misleading | |
39 | * anyone as to the status of such modified files, you must delete | |
40 | * this exception notice from them. | |
41 | * | |
42 | * If you write modifications of your own for GUILE, it is your choice | |
43 | * whether to permit this exception to apply to your modifications. | |
82892bed | 44 | * If you do not wish that, delete this exception notice. */ |
d3a6bc94 GB |
45 | |
46 | /* Software engineering face-lift by Greg J. Badros, 11-Dec-1999, | |
47 | gjb@cs.washington.edu, http://www.cs.washington.edu/homes/gjb */ | |
0f2d19dd JB |
48 | \f |
49 | ||
b4309c3c | 50 | #include "libguile/__scm.h" |
34f74fe1 MD |
51 | #include "libguile/print.h" |
52 | ||
0f2d19dd JB |
53 | \f |
54 | ||
55 | ||
56 | /* Immediate Numbers | |
57 | * | |
58 | * Inums are exact integer data that fits within an SCM word. | |
59 | * | |
60 | * SCM_INUMP applies only to values known to be Scheme objects. | |
61 | * In particular, SCM_INUMP (SCM_CAR (x)) is valid only if x is known | |
62 | * to be a SCM_CONSP. If x is only known to be a SCM_NIMP, | |
63 | * SCM_INUMP (SCM_CAR (x)) can give wrong answers. | |
64 | */ | |
65 | ||
56100716 DH |
66 | /* SCM_SRS is signed right shift */ |
67 | #if (-1 == (((-1) << 2) + 2) >> 2) | |
68 | # define SCM_SRS(x, y) ((x) >> (y)) | |
0f2d19dd | 69 | #else |
56100716 DH |
70 | # define SCM_SRS(x, y) ((SCM_UNPACK (x) < 0) ? ~((~SCM_UNPACK (x)) >> (y)) : (SCM_UNPACK (x) >> (y))) |
71 | #endif /* (-1 == (((-1) << 2) + 2) >> 2) */ | |
0f2d19dd JB |
72 | |
73 | ||
56100716 DH |
74 | #define SCM_INUMP(x) (2 & SCM_UNPACK (x)) |
75 | #define SCM_NINUMP(x) (!SCM_INUMP (x)) | |
76 | #define SCM_MAKINUM(x) (SCM_PACK (((x) << 2) + 2L)) | |
77 | #define SCM_INUM(x) (SCM_SRS (SCM_UNPACK (x), 2)) | |
0f2d19dd JB |
78 | |
79 | ||
894a712b DH |
80 | /* SCM_FIXABLE is true if its long argument can be encoded in an SCM_INUM. */ |
81 | #define SCM_POSFIXABLE(n) ((n) <= SCM_MOST_POSITIVE_FIXNUM) | |
82 | #define SCM_NEGFIXABLE(n) ((n) >= SCM_MOST_NEGATIVE_FIXNUM) | |
83 | #define SCM_FIXABLE(n) (SCM_POSFIXABLE(n) && SCM_NEGFIXABLE(n)) | |
84 | ||
85 | ||
56100716 | 86 | /* A name for 0. */ |
b82c6ce0 | 87 | #define SCM_INUM0 (SCM_MAKINUM (0)) |
0f2d19dd JB |
88 | |
89 | ||
88eb6852 MD |
90 | /* SCM_MAXEXP is the maximum double precision expontent |
91 | * SCM_FLTMAX is less than or scm_equal the largest single precision float | |
92 | */ | |
93 | ||
94 | #ifdef STDC_HEADERS | |
95 | #ifndef GO32 | |
96 | #include <float.h> | |
97 | #endif /* ndef GO32 */ | |
98 | #endif /* def STDC_HEADERS */ | |
99 | #ifdef DBL_MAX_10_EXP | |
100 | #define SCM_MAXEXP DBL_MAX_10_EXP | |
101 | #else | |
102 | #define SCM_MAXEXP 308 /* IEEE doubles */ | |
103 | #endif /* def DBL_MAX_10_EXP */ | |
104 | #ifdef FLT_MAX | |
105 | #define SCM_FLTMAX FLT_MAX | |
106 | #else | |
107 | #define SCM_FLTMAX 1e+23 | |
108 | #endif /* def FLT_MAX */ | |
109 | ||
0f2d19dd | 110 | |
0f2d19dd JB |
111 | /* SCM_INTBUFLEN is the maximum number of characters neccessary for the |
112 | * printed or scm_string representation of an exact immediate. | |
113 | */ | |
114 | ||
115 | #ifndef SCM_CHAR_BIT | |
116 | # define SCM_CHAR_BIT 8 | |
117 | #endif /* ndef SCM_CHAR_BIT */ | |
118 | #ifndef SCM_LONG_BIT | |
119 | # define SCM_LONG_BIT (SCM_CHAR_BIT*sizeof(long)/sizeof(char)) | |
120 | #endif /* ndef SCM_LONG_BIT */ | |
121 | #define SCM_INTBUFLEN (5+SCM_LONG_BIT) | |
122 | ||
0f2d19dd JB |
123 | |
124 | \f | |
125 | ||
126 | /* Numbers | |
127 | */ | |
128 | ||
88eb6852 MD |
129 | #define SCM_SLOPPY_INEXACTP(x) (SCM_TYP16S (x) == scm_tc16_real) |
130 | #define SCM_SLOPPY_REALP(x) (SCM_TYP16 (x) == scm_tc16_real) | |
131 | #define SCM_SLOPPY_COMPLEXP(x) (SCM_TYP16 (x) == scm_tc16_complex) | |
132 | #define SCM_INEXACTP(x) (SCM_NIMP (x) && SCM_TYP16S (x) == scm_tc16_real) | |
133 | #define SCM_REALP(x) (SCM_NIMP (x) && SCM_TYP16 (x) == scm_tc16_real) | |
134 | #define SCM_COMPLEXP(x) (SCM_NIMP (x) && SCM_TYP16 (x) == scm_tc16_complex) | |
135 | ||
88eb6852 | 136 | #define SCM_REAL_VALUE(x) (((scm_double_t *) SCM2PTR (x))->real) |
4260a7fc DH |
137 | #define SCM_COMPLEX_REAL(x) (((scm_complex_t *) SCM_CELL_WORD_1 (x))->real) |
138 | #define SCM_COMPLEX_IMAG(x) (((scm_complex_t *) SCM_CELL_WORD_1 (x))->imag) | |
0f2d19dd JB |
139 | |
140 | /* Define SCM_BIGDIG to an integer type whose size is smaller than long if | |
141 | * you want bignums. SCM_BIGRAD is one greater than the biggest SCM_BIGDIG. | |
142 | * | |
143 | * Define SCM_DIGSTOOBIG if the digits equivalent to a long won't fit in a long. | |
144 | */ | |
145 | #ifdef BIGNUMS | |
146 | # ifdef _UNICOS | |
147 | # define SCM_DIGSTOOBIG | |
148 | # if (1L << 31) <= SCM_USHRT_MAX | |
149 | # define SCM_BIGDIG unsigned short | |
150 | # else | |
151 | # define SCM_BIGDIG unsigned int | |
152 | # endif /* (1L << 31) <= USHRT_MAX */ | |
153 | # define SCM_BITSPERDIG 32 | |
154 | # else | |
155 | # define SCM_BIGDIG unsigned short | |
156 | # define SCM_BITSPERDIG (sizeof(SCM_BIGDIG)*SCM_CHAR_BIT) | |
157 | # endif /* def _UNICOS */ | |
158 | ||
159 | # define SCM_BIGRAD (1L << SCM_BITSPERDIG) | |
160 | # define SCM_DIGSPERLONG ((scm_sizet)((sizeof(long)*SCM_CHAR_BIT+SCM_BITSPERDIG-1)/SCM_BITSPERDIG)) | |
0f2d19dd | 161 | # define SCM_BIGUP(x) ((unsigned long)(x) << SCM_BITSPERDIG) |
08b5b88c | 162 | # define SCM_LONGLONGBIGUP(x) ((ulong_long)(x) << SCM_BITSPERDIG) |
0f2d19dd JB |
163 | # define SCM_BIGDN(x) ((x) >> SCM_BITSPERDIG) |
164 | # define SCM_BIGLO(x) ((x) & (SCM_BIGRAD-1)) | |
165 | #endif /* def BIGNUMS */ | |
166 | ||
167 | #ifndef SCM_BIGDIG | |
168 | /* Definition is not really used but helps various function | |
169 | * prototypes to compile with conditionalization. | |
170 | */ | |
171 | # define SCM_BIGDIG unsigned short | |
0f2d19dd JB |
172 | #endif /* ndef SCM_BIGDIG */ |
173 | ||
7a710745 | 174 | #define SCM_NUMBERP(x) (SCM_INUMP(x) || SCM_NUMP(x)) |
47457e8a | 175 | #define SCM_NUMP(x) (!SCM_IMP(x) && (0xfcff & SCM_CELL_TYPE (x)) == scm_tc7_smob) |
7272f6d8 | 176 | #define SCM_BIGP(x) (!SCM_IMP (x) && (SCM_TYP16 (x) == scm_tc16_big)) |
88eb6852 MD |
177 | #define SCM_BIGSIGNFLAG 0x10000L |
178 | #define SCM_BIGSIZEFIELD 17 | |
47457e8a DH |
179 | #define SCM_BIGSIGN(x) (SCM_CELL_WORD_0 (x) & SCM_BIGSIGNFLAG) |
180 | #define SCM_BDIGITS(x) ((SCM_BIGDIG *) (SCM_CELL_WORD_1 (x))) | |
181 | #define SCM_NUMDIGS(x) ((scm_sizet) (SCM_CELL_WORD_0 (x) >> SCM_BIGSIZEFIELD)) | |
88eb6852 | 182 | #define SCM_SETNUMDIGS(x, v, sign) \ |
4260a7fc | 183 | SCM_SET_CELL_WORD_0 (x, \ |
88eb6852 MD |
184 | scm_tc16_big \ |
185 | | ((sign) ? SCM_BIGSIGNFLAG : 0) \ | |
f81e080b | 186 | | (((v) + 0L) << SCM_BIGSIZEFIELD)) |
88eb6852 | 187 | |
0f2d19dd JB |
188 | \f |
189 | ||
88eb6852 | 190 | typedef struct scm_double_t |
0f2d19dd JB |
191 | { |
192 | SCM type; | |
88eb6852 MD |
193 | SCM pad; |
194 | double real; | |
195 | } scm_double_t; | |
0f2d19dd | 196 | |
88eb6852 | 197 | typedef struct scm_complex_t |
0f2d19dd | 198 | { |
88eb6852 MD |
199 | double real; |
200 | double imag; | |
201 | } scm_complex_t; | |
0f2d19dd | 202 | |
0f2d19dd | 203 | \f |
0f2d19dd | 204 | |
7866a09b GB |
205 | extern SCM scm_exact_p (SCM x); |
206 | extern SCM scm_odd_p (SCM n); | |
207 | extern SCM scm_even_p (SCM n); | |
208 | extern SCM scm_abs (SCM x); | |
209 | extern SCM scm_quotient (SCM x, SCM y); | |
210 | extern SCM scm_remainder (SCM x, SCM y); | |
211 | extern SCM scm_modulo (SCM x, SCM y); | |
212 | extern SCM scm_gcd (SCM x, SCM y); | |
213 | extern SCM scm_lcm (SCM n1, SCM n2); | |
214 | extern SCM scm_logand (SCM n1, SCM n2); | |
215 | extern SCM scm_logior (SCM n1, SCM n2); | |
216 | extern SCM scm_logxor (SCM n1, SCM n2); | |
217 | extern SCM scm_logtest (SCM n1, SCM n2); | |
218 | extern SCM scm_logbit_p (SCM n1, SCM n2); | |
219 | extern SCM scm_lognot (SCM n); | |
220 | extern SCM scm_integer_expt (SCM z1, SCM z2); | |
221 | extern SCM scm_ash (SCM n, SCM cnt); | |
222 | extern SCM scm_bit_extract (SCM n, SCM start, SCM end); | |
223 | extern SCM scm_logcount (SCM n); | |
224 | extern SCM scm_integer_length (SCM n); | |
225 | extern SCM scm_mkbig (scm_sizet nlen, int sign); | |
226 | extern SCM scm_big2inum (SCM b, scm_sizet l); | |
227 | extern SCM scm_adjbig (SCM b, scm_sizet nlen); | |
228 | extern SCM scm_normbig (SCM b); | |
229 | extern SCM scm_copybig (SCM b, int sign); | |
230 | extern SCM scm_long2big (long n); | |
231 | extern SCM scm_long_long2big (long_long n); | |
232 | extern SCM scm_2ulong2big (unsigned long * np); | |
233 | extern SCM scm_ulong2big (unsigned long n); | |
234 | extern int scm_bigcomp (SCM x, SCM y); | |
235 | extern long scm_pseudolong (long x); | |
236 | extern void scm_longdigs (long x, SCM_BIGDIG digs[]); | |
237 | extern SCM scm_addbig (SCM_BIGDIG *x, scm_sizet nx, int xsgn, SCM bigy, int sgny); | |
238 | extern SCM scm_mulbig (SCM_BIGDIG *x, scm_sizet nx, SCM_BIGDIG *y, scm_sizet ny, int sgn); | |
239 | extern unsigned int scm_divbigdig (SCM_BIGDIG *ds, scm_sizet h, SCM_BIGDIG div); | |
7866a09b GB |
240 | extern scm_sizet scm_iint2str (long num, int rad, char *p); |
241 | extern SCM scm_number_to_string (SCM x, SCM radix); | |
88eb6852 MD |
242 | extern int scm_print_real (SCM sexp, SCM port, scm_print_state *pstate); |
243 | extern int scm_print_complex (SCM sexp, SCM port, scm_print_state *pstate); | |
7866a09b GB |
244 | extern int scm_bigprint (SCM exp, SCM port, scm_print_state *pstate); |
245 | extern SCM scm_istr2int (char *str, long len, long radix); | |
246 | extern SCM scm_istr2flo (char *str, long len, long radix); | |
247 | extern SCM scm_istring2number (char *str, long len, long radix); | |
248 | extern SCM scm_string_to_number (SCM str, SCM radix); | |
88eb6852 MD |
249 | extern SCM scm_make_real (double x); |
250 | extern SCM scm_make_complex (double x, double y); | |
7866a09b | 251 | extern SCM scm_bigequal (SCM x, SCM y); |
88eb6852 MD |
252 | extern SCM scm_real_equalp (SCM x, SCM y); |
253 | extern SCM scm_complex_equalp (SCM x, SCM y); | |
7866a09b GB |
254 | extern SCM scm_number_p (SCM x); |
255 | extern SCM scm_real_p (SCM x); | |
256 | extern SCM scm_integer_p (SCM x); | |
257 | extern SCM scm_inexact_p (SCM x); | |
258 | extern SCM scm_num_eq_p (SCM x, SCM y); | |
259 | extern SCM scm_less_p (SCM x, SCM y); | |
260 | extern SCM scm_gr_p (SCM x, SCM y); | |
261 | extern SCM scm_leq_p (SCM x, SCM y); | |
262 | extern SCM scm_geq_p (SCM x, SCM y); | |
263 | extern SCM scm_zero_p (SCM z); | |
264 | extern SCM scm_positive_p (SCM x); | |
265 | extern SCM scm_negative_p (SCM x); | |
266 | extern SCM scm_max (SCM x, SCM y); | |
267 | extern SCM scm_min (SCM x, SCM y); | |
268 | extern SCM scm_sum (SCM x, SCM y); | |
269 | extern SCM scm_difference (SCM x, SCM y); | |
270 | extern SCM scm_product (SCM x, SCM y); | |
271 | extern double scm_num2dbl (SCM a, const char * why); | |
272 | extern SCM scm_divide (SCM x, SCM y); | |
273 | extern double scm_asinh (double x); | |
274 | extern double scm_acosh (double x); | |
275 | extern double scm_atanh (double x); | |
276 | extern double scm_truncate (double x); | |
277 | extern double scm_round (double x); | |
278 | extern double scm_exact_to_inexact (double z); | |
279 | extern SCM scm_sys_expt (SCM z1, SCM z2); | |
280 | extern SCM scm_sys_atan2 (SCM z1, SCM z2); | |
281 | extern SCM scm_make_rectangular (SCM z1, SCM z2); | |
282 | extern SCM scm_make_polar (SCM z1, SCM z2); | |
283 | extern SCM scm_real_part (SCM z); | |
284 | extern SCM scm_imag_part (SCM z); | |
285 | extern SCM scm_magnitude (SCM z); | |
286 | extern SCM scm_angle (SCM z); | |
287 | extern SCM scm_inexact_to_exact (SCM z); | |
288 | extern SCM scm_trunc (SCM x); | |
289 | extern SCM scm_dbl2big (double d); | |
290 | extern double scm_big2dbl (SCM b); | |
291 | extern SCM scm_long2num (long sl); | |
292 | extern SCM scm_long_long2num (long_long sl); | |
293 | extern SCM scm_ulong2num (unsigned long sl); | |
294 | extern long scm_num2long (SCM num, char *pos, const char *s_caller); | |
295 | extern long_long scm_num2long_long (SCM num, char *pos, | |
296 | const char *s_caller); | |
297 | extern unsigned long scm_num2ulong (SCM num, char *pos, | |
298 | const char *s_caller); | |
299 | extern void scm_init_numbers (void); | |
0f2d19dd | 300 | |
3a9809df DH |
301 | \f |
302 | ||
303 | #if (SCM_DEBUG_DEPRECATED == 0) | |
304 | ||
305 | typedef struct scm_dblproc | |
306 | { | |
307 | char *scm_string; | |
308 | double (*cproc) (); | |
309 | } scm_dblproc; | |
310 | ||
3a9809df | 311 | #define SCM_UNEGFIXABLE(n) ((n) <= -SCM_MOST_NEGATIVE_FIXNUM) |
3a9809df DH |
312 | #define SCM_FLOBUFLEN (10+2*(sizeof(double)/sizeof(char)*SCM_CHAR_BIT*3+9)/10) |
313 | #define SCM_INEXP(x) SCM_INEXACTP(x) | |
314 | #define SCM_CPLXP(x) SCM_COMPLEXP(x) | |
315 | #define SCM_REAL(x) (SCM_SLOPPY_REALP (x) ? SCM_REAL_VALUE (x) : SCM_COMPLEX_REAL (x)) | |
316 | #define SCM_IMAG(x) (SCM_SLOPPY_REALP (x) ? 0.0 : SCM_COMPLEX_IMAG (x)) | |
317 | #define SCM_REALPART(x) (SCM_SLOPPY_REALP (x) ? SCM_REAL_VALUE (x) : SCM_COMPLEX_REAL (x)) | |
318 | #define scm_makdbl scm_make_complex | |
319 | #define SCM_SINGP(x) 0 | |
320 | #define SCM_NUM2DBL(x) scm_num2dbl(x, "SCM_NUM2DBL") | |
321 | ||
322 | #ifndef SCM_BIGDIG | |
323 | # define SCM_NO_BIGDIG | |
324 | #endif | |
325 | ||
326 | #endif /* SCM_DEBUG_DEPRECATED == 0 */ | |
327 | ||
0f2d19dd | 328 | #endif /* NUMBERSH */ |
89e00824 ML |
329 | |
330 | /* | |
331 | Local Variables: | |
332 | c-file-style: "gnu" | |
333 | End: | |
334 | */ |