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f872b822 MD |
1 | /* Copyright (C) 1995,1996,1997,1998 Free Software Foundation, Inc. |
2 | ||
0f2d19dd JB |
3 | * This program is free software; you can redistribute it and/or modify |
4 | * it under the terms of the GNU General Public License as published by | |
5 | * the Free Software Foundation; either version 2, or (at your option) | |
6 | * any later version. | |
7 | * | |
8 | * This program is distributed in the hope that it will be useful, | |
9 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
10 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
11 | * GNU General Public License for more details. | |
12 | * | |
13 | * You should have received a copy of the GNU General Public License | |
14 | * along with this software; see the file COPYING. If not, write to | |
82892bed JB |
15 | * the Free Software Foundation, Inc., 59 Temple Place, Suite 330, |
16 | * Boston, MA 02111-1307 USA | |
0f2d19dd JB |
17 | * |
18 | * As a special exception, the Free Software Foundation gives permission | |
19 | * for additional uses of the text contained in its release of GUILE. | |
20 | * | |
21 | * The exception is that, if you link the GUILE library with other files | |
22 | * to produce an executable, this does not by itself cause the | |
23 | * resulting executable to be covered by the GNU General Public License. | |
24 | * Your use of that executable is in no way restricted on account of | |
25 | * linking the GUILE library code into it. | |
26 | * | |
27 | * This exception does not however invalidate any other reasons why | |
28 | * the executable file might be covered by the GNU General Public License. | |
29 | * | |
30 | * This exception applies only to the code released by the | |
31 | * Free Software Foundation under the name GUILE. If you copy | |
32 | * code from other Free Software Foundation releases into a copy of | |
33 | * GUILE, as the General Public License permits, the exception does | |
34 | * not apply to the code that you add in this way. To avoid misleading | |
35 | * anyone as to the status of such modified files, you must delete | |
36 | * this exception notice from them. | |
37 | * | |
38 | * If you write modifications of your own for GUILE, it is your choice | |
39 | * whether to permit this exception to apply to your modifications. | |
82892bed | 40 | * If you do not wish that, delete this exception notice. */ |
0f2d19dd JB |
41 | \f |
42 | ||
43 | #include <stdio.h> | |
44 | #include <math.h> | |
45 | #include "_scm.h" | |
20e6290e JB |
46 | #include "genio.h" |
47 | #include "unif.h" | |
dd856e23 | 48 | #include "feature.h" |
0f2d19dd | 49 | |
20e6290e | 50 | #include "numbers.h" |
0f2d19dd JB |
51 | \f |
52 | #define DIGITS '0':case '1':case '2':case '3':case '4':\ | |
53 | case '5':case '6':case '7':case '8':case '9' | |
54 | ||
55 | ||
56 | /* IS_INF tests its floating point number for infiniteness | |
57 | */ | |
58 | #ifndef IS_INF | |
f872b822 | 59 | #define IS_INF(x) ((x) == (x) / 2) |
0f2d19dd JB |
60 | #endif |
61 | ||
e6f3ef58 MD |
62 | /* Return true if X is not infinite and is not a NaN |
63 | */ | |
64 | #ifndef isfinite | |
65 | #define isfinite(x) (!IS_INF (x) && (x) == (x)) | |
66 | #endif | |
67 | ||
0f2d19dd JB |
68 | /* MAXEXP is the maximum double precision expontent |
69 | * FLTMAX is less than or scm_equal the largest single precision float | |
70 | */ | |
71 | ||
72 | #ifdef SCM_FLOATS | |
f872b822 MD |
73 | #ifdef STDC_HEADERS |
74 | #ifndef GO32 | |
75 | #include <float.h> | |
76 | #endif /* ndef GO32 */ | |
77 | #endif /* def STDC_HEADERS */ | |
78 | #ifdef DBL_MAX_10_EXP | |
79 | #define MAXEXP DBL_MAX_10_EXP | |
80 | #else | |
81 | #define MAXEXP 308 /* IEEE doubles */ | |
82 | #endif /* def DBL_MAX_10_EXP */ | |
83 | #ifdef FLT_MAX | |
84 | #define FLTMAX FLT_MAX | |
85 | #else | |
86 | #define FLTMAX 1e+23 | |
87 | #endif /* def FLT_MAX */ | |
0f2d19dd | 88 | #endif /* def SCM_FLOATS */ |
0f2d19dd JB |
89 | \f |
90 | ||
f872b822 MD |
91 | |
92 | SCM_PROC (s_exact_p, "exact?", 1, 0, 0, scm_exact_p); | |
1cc91f1b | 93 | |
0f2d19dd | 94 | SCM |
f872b822 | 95 | scm_exact_p (x) |
0f2d19dd | 96 | SCM x; |
0f2d19dd | 97 | { |
f872b822 MD |
98 | if (SCM_INUMP (x)) |
99 | return SCM_BOOL_T; | |
0f2d19dd | 100 | #ifdef SCM_BIGDIG |
f872b822 MD |
101 | if (SCM_NIMP (x) && SCM_BIGP (x)) |
102 | return SCM_BOOL_T; | |
0f2d19dd JB |
103 | #endif |
104 | return SCM_BOOL_F; | |
105 | } | |
106 | ||
f872b822 | 107 | SCM_PROC (s_odd_p, "odd?", 1, 0, 0, scm_odd_p); |
1cc91f1b | 108 | |
0f2d19dd | 109 | SCM |
f872b822 | 110 | scm_odd_p (n) |
0f2d19dd | 111 | SCM n; |
0f2d19dd JB |
112 | { |
113 | #ifdef SCM_BIGDIG | |
f872b822 MD |
114 | if (SCM_NINUMP (n)) |
115 | { | |
116 | SCM_ASSERT (SCM_NIMP (n) && SCM_BIGP (n), n, SCM_ARG1, s_odd_p); | |
117 | return (1 & SCM_BDIGITS (n)[0]) ? SCM_BOOL_T : SCM_BOOL_F; | |
118 | } | |
0f2d19dd | 119 | #else |
f872b822 | 120 | SCM_ASSERT (SCM_INUMP (n), n, SCM_ARG1, s_odd_p); |
0f2d19dd | 121 | #endif |
f872b822 | 122 | return (4 & (int) n) ? SCM_BOOL_T : SCM_BOOL_F; |
0f2d19dd JB |
123 | } |
124 | ||
f872b822 | 125 | SCM_PROC (s_even_p, "even?", 1, 0, 0, scm_even_p); |
1cc91f1b | 126 | |
0f2d19dd | 127 | SCM |
f872b822 | 128 | scm_even_p (n) |
0f2d19dd | 129 | SCM n; |
0f2d19dd JB |
130 | { |
131 | #ifdef SCM_BIGDIG | |
f872b822 MD |
132 | if (SCM_NINUMP (n)) |
133 | { | |
134 | SCM_ASSERT (SCM_NIMP (n) && SCM_BIGP (n), n, SCM_ARG1, s_even_p); | |
135 | return (1 & SCM_BDIGITS (n)[0]) ? SCM_BOOL_F : SCM_BOOL_T; | |
136 | } | |
0f2d19dd | 137 | #else |
f872b822 | 138 | SCM_ASSERT (SCM_INUMP (n), n, SCM_ARG1, s_even_p); |
0f2d19dd | 139 | #endif |
f872b822 | 140 | return (4 & (int) n) ? SCM_BOOL_F : SCM_BOOL_T; |
0f2d19dd JB |
141 | } |
142 | ||
f872b822 | 143 | SCM_PROC (s_abs, "abs", 1, 0, 0, scm_abs); |
1cc91f1b | 144 | |
0f2d19dd | 145 | SCM |
f872b822 | 146 | scm_abs (x) |
0f2d19dd | 147 | SCM x; |
0f2d19dd JB |
148 | { |
149 | #ifdef SCM_BIGDIG | |
f872b822 MD |
150 | if (SCM_NINUMP (x)) |
151 | { | |
152 | SCM_ASSERT (SCM_NIMP (x) && SCM_BIGP (x), x, SCM_ARG1, s_abs); | |
153 | if (SCM_TYP16 (x) == scm_tc16_bigpos) | |
154 | return x; | |
155 | return scm_copybig (x, 0); | |
156 | } | |
0f2d19dd | 157 | #else |
f872b822 | 158 | SCM_ASSERT (SCM_INUMP (x), x, SCM_ARG1, s_abs); |
0f2d19dd | 159 | #endif |
f872b822 MD |
160 | if (SCM_INUM (x) >= 0) |
161 | return x; | |
162 | x = - SCM_INUM (x); | |
163 | if (!SCM_POSFIXABLE (x)) | |
0f2d19dd | 164 | #ifdef SCM_BIGDIG |
f872b822 | 165 | return scm_long2big (x); |
0f2d19dd | 166 | #else |
52859adf | 167 | scm_num_overflow (s_abs); |
0f2d19dd | 168 | #endif |
f872b822 | 169 | return SCM_MAKINUM (x); |
0f2d19dd JB |
170 | } |
171 | ||
f872b822 | 172 | SCM_PROC (s_quotient, "quotient", 2, 0, 0, scm_quotient); |
1cc91f1b | 173 | |
0f2d19dd | 174 | SCM |
f872b822 | 175 | scm_quotient (x, y) |
0f2d19dd JB |
176 | SCM x; |
177 | SCM y; | |
0f2d19dd JB |
178 | { |
179 | register long z; | |
180 | #ifdef SCM_BIGDIG | |
f872b822 MD |
181 | if (SCM_NINUMP (x)) |
182 | { | |
183 | long w; | |
184 | SCM_ASSERT (SCM_NIMP (x) && SCM_BIGP (x), x, SCM_ARG1, s_quotient); | |
185 | if (SCM_NINUMP (y)) | |
186 | { | |
187 | SCM_ASRTGO (SCM_NIMP (y) && SCM_BIGP (y), bady); | |
188 | return scm_divbigbig (SCM_BDIGITS (x), SCM_NUMDIGS (x), | |
189 | SCM_BDIGITS (y), SCM_NUMDIGS (y), | |
190 | SCM_BIGSIGN (x) ^ SCM_BIGSIGN (y), 2); | |
191 | } | |
192 | z = SCM_INUM (y); | |
193 | SCM_ASRTGO (z, ov); | |
194 | if (1 == z) | |
195 | return x; | |
196 | if (z < 0) | |
197 | z = -z; | |
198 | if (z < SCM_BIGRAD) | |
199 | { | |
200 | w = scm_copybig (x, SCM_BIGSIGN (x) ? (y > 0) : (y < 0)); | |
201 | scm_divbigdig (SCM_BDIGITS (w), SCM_NUMDIGS (w), (SCM_BIGDIG) z); | |
202 | return scm_normbig (w); | |
203 | } | |
0f2d19dd | 204 | #ifndef SCM_DIGSTOOBIG |
f872b822 MD |
205 | w = scm_pseudolong (z); |
206 | return scm_divbigbig (SCM_BDIGITS (x), SCM_NUMDIGS (x), | |
207 | (SCM_BIGDIG *) & w, SCM_DIGSPERLONG, | |
208 | SCM_BIGSIGN (x) ? (y > 0) : (y < 0), 2); | |
0f2d19dd | 209 | #else |
f872b822 MD |
210 | { |
211 | SCM_BIGDIG zdigs[SCM_DIGSPERLONG]; | |
212 | scm_longdigs (z, zdigs); | |
213 | return scm_divbigbig (SCM_BDIGITS (x), SCM_NUMDIGS (x), | |
214 | zdigs, SCM_DIGSPERLONG, | |
215 | SCM_BIGSIGN (x) ? (y > 0) : (y < 0), 2); | |
216 | } | |
217 | #endif | |
0f2d19dd | 218 | } |
f872b822 MD |
219 | if (SCM_NINUMP (y)) |
220 | { | |
221 | #ifndef SCM_RECKLESS | |
222 | if (!(SCM_NIMP (y) && SCM_BIGP (y))) | |
223 | { | |
224 | bady: | |
225 | scm_wta (y, (char *) SCM_ARG2, s_quotient); | |
226 | } | |
0f2d19dd | 227 | #endif |
f872b822 MD |
228 | return SCM_INUM0; |
229 | } | |
0f2d19dd | 230 | #else |
f872b822 MD |
231 | SCM_ASSERT (SCM_INUMP (x), x, SCM_ARG1, s_quotient); |
232 | SCM_ASSERT (SCM_INUMP (y), y, SCM_ARG2, s_quotient); | |
0f2d19dd | 233 | #endif |
f872b822 MD |
234 | if ((z = SCM_INUM (y)) == 0) |
235 | { | |
236 | ov: | |
237 | scm_num_overflow (s_quotient); | |
238 | } | |
239 | z = SCM_INUM (x) / z; | |
0f2d19dd JB |
240 | #ifdef BADIVSGNS |
241 | { | |
f872b822 MD |
242 | #if (__TURBOC__ == 1) |
243 | long t = ((y < 0) ? -SCM_INUM (x) : SCM_INUM (x)) % SCM_INUM (y); | |
0f2d19dd | 244 | #else |
f872b822 | 245 | long t = SCM_INUM (x) % SCM_INUM (y); |
0f2d19dd | 246 | #endif |
f872b822 | 247 | if (t == 0); |
0f2d19dd | 248 | else if (t < 0) |
f872b822 MD |
249 | if (x < 0); |
250 | else | |
251 | z--; | |
252 | else if (x < 0) | |
253 | z++; | |
0f2d19dd JB |
254 | } |
255 | #endif | |
f872b822 | 256 | if (!SCM_FIXABLE (z)) |
0f2d19dd | 257 | #ifdef SCM_BIGDIG |
f872b822 | 258 | return scm_long2big (z); |
0f2d19dd | 259 | #else |
52859adf | 260 | scm_num_overflow (s_quotient); |
0f2d19dd | 261 | #endif |
f872b822 | 262 | return SCM_MAKINUM (z); |
0f2d19dd JB |
263 | } |
264 | ||
f872b822 | 265 | SCM_PROC (s_remainder, "remainder", 2, 0, 0, scm_remainder); |
1cc91f1b | 266 | |
0f2d19dd | 267 | SCM |
f872b822 | 268 | scm_remainder (x, y) |
0f2d19dd JB |
269 | SCM x; |
270 | SCM y; | |
0f2d19dd JB |
271 | { |
272 | register long z; | |
273 | #ifdef SCM_BIGDIG | |
f872b822 MD |
274 | if (SCM_NINUMP (x)) |
275 | { | |
276 | SCM_ASSERT (SCM_NIMP (x) && SCM_BIGP (x), x, SCM_ARG1, s_remainder); | |
277 | if (SCM_NINUMP (y)) | |
278 | { | |
279 | SCM_ASRTGO (SCM_NIMP (y) && SCM_BIGP (y), bady); | |
280 | return scm_divbigbig (SCM_BDIGITS (x), SCM_NUMDIGS (x), | |
281 | SCM_BDIGITS (y), SCM_NUMDIGS (y), | |
282 | SCM_BIGSIGN (x), 0); | |
283 | } | |
284 | if (!(z = SCM_INUM (y))) | |
285 | goto ov; | |
286 | return scm_divbigint (x, z, SCM_BIGSIGN (x), 0); | |
287 | } | |
288 | if (SCM_NINUMP (y)) | |
289 | { | |
290 | #ifndef SCM_RECKLESS | |
291 | if (!(SCM_NIMP (y) && SCM_BIGP (y))) | |
292 | { | |
293 | bady: | |
294 | scm_wta (y, (char *) SCM_ARG2, s_remainder); | |
295 | } | |
296 | #endif | |
297 | return x; | |
0f2d19dd | 298 | } |
0f2d19dd | 299 | #else |
f872b822 MD |
300 | SCM_ASSERT (SCM_INUMP (x), x, SCM_ARG1, s_remainder); |
301 | SCM_ASSERT (SCM_INUMP (y), y, SCM_ARG2, s_remainder); | |
0f2d19dd | 302 | #endif |
f872b822 MD |
303 | if (!(z = SCM_INUM (y))) |
304 | { | |
305 | ov: | |
306 | scm_num_overflow (s_remainder); | |
307 | } | |
308 | #if (__TURBOC__ == 1) | |
309 | if (z < 0) | |
310 | z = -z; | |
0f2d19dd | 311 | #endif |
f872b822 | 312 | z = SCM_INUM (x) % z; |
0f2d19dd | 313 | #ifdef BADIVSGNS |
f872b822 | 314 | if (!z); |
0f2d19dd | 315 | else if (z < 0) |
f872b822 MD |
316 | if (x < 0); |
317 | else | |
318 | z += SCM_INUM (y); | |
319 | else if (x < 0) | |
320 | z -= SCM_INUM (y); | |
0f2d19dd | 321 | #endif |
f872b822 | 322 | return SCM_MAKINUM (z); |
0f2d19dd JB |
323 | } |
324 | ||
f872b822 | 325 | SCM_PROC (s_modulo, "modulo", 2, 0, 0, scm_modulo); |
1cc91f1b | 326 | |
0f2d19dd | 327 | SCM |
f872b822 | 328 | scm_modulo (x, y) |
0f2d19dd JB |
329 | SCM x; |
330 | SCM y; | |
0f2d19dd JB |
331 | { |
332 | register long yy, z; | |
333 | #ifdef SCM_BIGDIG | |
f872b822 MD |
334 | if (SCM_NINUMP (x)) |
335 | { | |
336 | SCM_ASSERT (SCM_NIMP (x) && SCM_BIGP (x), x, SCM_ARG1, s_modulo); | |
337 | if (SCM_NINUMP (y)) | |
338 | { | |
339 | SCM_ASRTGO (SCM_NIMP (y) && SCM_BIGP (y), bady); | |
340 | return scm_divbigbig (SCM_BDIGITS (x), SCM_NUMDIGS (x), | |
341 | SCM_BDIGITS (y), SCM_NUMDIGS (y), | |
342 | SCM_BIGSIGN (y), | |
343 | (SCM_BIGSIGN (x) ^ SCM_BIGSIGN (y)) ? 1 : 0); | |
344 | } | |
345 | if (!(z = SCM_INUM (y))) | |
346 | goto ov; | |
347 | return scm_divbigint (x, z, y < 0, | |
348 | (SCM_BIGSIGN (x) ? (y > 0) : (y < 0)) ? 1 : 0); | |
349 | } | |
350 | if (SCM_NINUMP (y)) | |
351 | { | |
352 | #ifndef SCM_RECKLESS | |
353 | if (!(SCM_NIMP (y) && SCM_BIGP (y))) | |
354 | { | |
355 | bady: | |
356 | scm_wta (y, (char *) SCM_ARG2, s_modulo); | |
357 | } | |
358 | #endif | |
359 | return (SCM_BIGSIGN (y) ? (x > 0) : (x < 0)) ? scm_sum (x, y) : x; | |
0f2d19dd | 360 | } |
0f2d19dd | 361 | #else |
f872b822 MD |
362 | SCM_ASSERT (SCM_INUMP (x), x, SCM_ARG1, s_modulo); |
363 | SCM_ASSERT (SCM_INUMP (y), y, SCM_ARG2, s_modulo); | |
0f2d19dd | 364 | #endif |
f872b822 MD |
365 | if (!(yy = SCM_INUM (y))) |
366 | { | |
367 | ov: | |
368 | scm_num_overflow (s_modulo); | |
369 | } | |
0f2d19dd | 370 | #if (__TURBOC__==1) |
f872b822 MD |
371 | z = SCM_INUM (x); |
372 | z = ((yy < 0) ? -z : z) % yy; | |
0f2d19dd | 373 | #else |
f872b822 | 374 | z = SCM_INUM (x) % yy; |
0f2d19dd | 375 | #endif |
f872b822 | 376 | return SCM_MAKINUM (((yy < 0) ? (z > 0) : (z < 0)) ? z + yy : z); |
0f2d19dd JB |
377 | } |
378 | ||
379 | SCM_PROC1 (s_gcd, "gcd", scm_tc7_asubr, scm_gcd); | |
1cc91f1b | 380 | |
0f2d19dd | 381 | SCM |
f872b822 | 382 | scm_gcd (x, y) |
0f2d19dd JB |
383 | SCM x; |
384 | SCM y; | |
0f2d19dd JB |
385 | { |
386 | register long u, v, k, t; | |
f872b822 MD |
387 | if (SCM_UNBNDP (y)) |
388 | return SCM_UNBNDP (x) ? SCM_INUM0 : x; | |
0f2d19dd JB |
389 | tailrec: |
390 | #ifdef SCM_BIGDIG | |
f872b822 MD |
391 | if (SCM_NINUMP (x)) |
392 | { | |
393 | big_gcd: | |
394 | SCM_ASSERT (SCM_NIMP (x) && SCM_BIGP (x), x, SCM_ARG1, s_gcd); | |
395 | if (SCM_BIGSIGN (x)) | |
396 | x = scm_copybig (x, 0); | |
397 | newy: | |
398 | if (SCM_NINUMP (y)) | |
399 | { | |
400 | SCM_ASSERT (SCM_NIMP (y) && SCM_BIGP (y), y, SCM_ARG2, s_gcd); | |
401 | if (SCM_BIGSIGN (y)) | |
402 | y = scm_copybig (y, 0); | |
403 | switch (scm_bigcomp (x, y)) | |
404 | { | |
405 | case -1: | |
406 | swaprec: | |
407 | t = scm_remainder (x, y); | |
408 | x = y; | |
409 | y = t; | |
410 | goto tailrec; | |
411 | case 0: | |
412 | return x; | |
413 | case 1: | |
414 | y = scm_remainder (y, x); | |
415 | goto newy; | |
416 | } | |
417 | /* instead of the switch, we could just | |
418 | return scm_gcd (y, scm_modulo (x, y)); */ | |
419 | } | |
420 | if (SCM_INUM0 == y) | |
421 | return x; | |
422 | goto swaprec; | |
0f2d19dd | 423 | } |
f872b822 MD |
424 | if (SCM_NINUMP (y)) |
425 | { | |
426 | t = x; | |
427 | x = y; | |
428 | y = t; | |
429 | goto big_gcd; | |
430 | } | |
431 | #else | |
432 | SCM_ASSERT (SCM_INUMP (x), x, SCM_ARG1, s_gcd); | |
433 | SCM_ASSERT (SCM_INUMP (y), y, SCM_ARG2, s_gcd); | |
434 | #endif | |
435 | u = SCM_INUM (x); | |
436 | if (u < 0) | |
437 | u = -u; | |
438 | v = SCM_INUM (y); | |
439 | if (v < 0) | |
440 | v = -v; | |
441 | else if (0 == v) | |
442 | goto getout; | |
443 | if (0 == u) | |
444 | { | |
445 | u = v; | |
446 | goto getout; | |
447 | } | |
448 | for (k = 1; !(1 & ((int) u | (int) v)); k <<= 1, u >>= 1, v >>= 1); | |
449 | if (1 & (int) u) | |
450 | t = -v; | |
451 | else | |
452 | { | |
453 | t = u; | |
454 | b3: | |
455 | t = SCM_SRS (t, 1); | |
456 | } | |
457 | if (!(1 & (int) t)) | |
458 | goto b3; | |
459 | if (t > 0) | |
460 | u = t; | |
461 | else | |
462 | v = -t; | |
463 | if ((t = u - v)) | |
464 | goto b3; | |
465 | u = u * k; | |
0f2d19dd | 466 | getout: |
f872b822 | 467 | if (!SCM_POSFIXABLE (u)) |
0f2d19dd | 468 | #ifdef SCM_BIGDIG |
f872b822 | 469 | return scm_long2big (u); |
0f2d19dd | 470 | #else |
52859adf | 471 | scm_num_overflow (s_gcd); |
0f2d19dd | 472 | #endif |
f872b822 | 473 | return SCM_MAKINUM (u); |
0f2d19dd JB |
474 | } |
475 | ||
476 | SCM_PROC1 (s_lcm, "lcm", scm_tc7_asubr, scm_lcm); | |
1cc91f1b | 477 | |
0f2d19dd | 478 | SCM |
f872b822 | 479 | scm_lcm (n1, n2) |
0f2d19dd JB |
480 | SCM n1; |
481 | SCM n2; | |
0f2d19dd JB |
482 | { |
483 | SCM d; | |
f872b822 MD |
484 | if (SCM_UNBNDP (n2)) |
485 | { | |
486 | n2 = SCM_MAKINUM (1L); | |
487 | if (SCM_UNBNDP (n1)) | |
488 | return n2; | |
489 | } | |
490 | d = scm_gcd (n1, n2); | |
491 | if (SCM_INUM0 == d) | |
492 | return d; | |
493 | return scm_abs (scm_product (n1, scm_quotient (n2, d))); | |
0f2d19dd JB |
494 | } |
495 | ||
496 | #ifndef SCM_BIGDIG | |
f872b822 MD |
497 | #ifndef SCM_FLOATS |
498 | #define scm_long2num SCM_MAKINUM | |
499 | #endif | |
0f2d19dd JB |
500 | #endif |
501 | ||
502 | #ifndef scm_long2num | |
503 | SCM_PROC1 (s_logand, "logand", scm_tc7_asubr, scm_logand); | |
1cc91f1b | 504 | |
0f2d19dd | 505 | SCM |
f872b822 | 506 | scm_logand (n1, n2) |
0f2d19dd JB |
507 | SCM n1; |
508 | SCM n2; | |
0f2d19dd | 509 | { |
f872b822 | 510 | if (SCM_UNBNDP (n2)) |
d28da049 MD |
511 | { |
512 | if (SCM_UNBNDP (n1)) | |
513 | return SCM_MAKINUM (-1); | |
514 | return n1; | |
515 | } | |
f872b822 MD |
516 | return scm_ulong2num (scm_num2ulong (n1, (char *) SCM_ARG1, s_logand) |
517 | & scm_num2ulong (n2, (char *) SCM_ARG2, s_logand)); | |
0f2d19dd JB |
518 | } |
519 | ||
520 | SCM_PROC1 (s_logior, "logior", scm_tc7_asubr, scm_logior); | |
1cc91f1b | 521 | |
0f2d19dd | 522 | SCM |
f872b822 | 523 | scm_logior (n1, n2) |
0f2d19dd JB |
524 | SCM n1; |
525 | SCM n2; | |
0f2d19dd | 526 | { |
f872b822 | 527 | if (SCM_UNBNDP (n2)) |
d28da049 MD |
528 | { |
529 | if (SCM_UNBNDP (n1)) | |
530 | return SCM_INUM0; | |
531 | return n1; | |
532 | } | |
f872b822 MD |
533 | return scm_ulong2num (scm_num2ulong (n1, (char *) SCM_ARG1, s_logior) |
534 | | scm_num2ulong (n2, (char *) SCM_ARG2, s_logior)); | |
0f2d19dd JB |
535 | } |
536 | ||
537 | SCM_PROC1 (s_logxor, "logxor", scm_tc7_asubr, scm_logxor); | |
1cc91f1b | 538 | |
0f2d19dd | 539 | SCM |
f872b822 | 540 | scm_logxor (n1, n2) |
0f2d19dd JB |
541 | SCM n1; |
542 | SCM n2; | |
0f2d19dd | 543 | { |
f872b822 | 544 | if (SCM_UNBNDP (n2)) |
d28da049 MD |
545 | { |
546 | if (SCM_UNBNDP (n1)) | |
547 | return SCM_INUM0; | |
548 | return n1; | |
549 | } | |
f872b822 MD |
550 | return scm_ulong2num (scm_num2ulong (n1, (char *) SCM_ARG1, s_logxor) |
551 | ^ scm_num2ulong (n2, (char *) SCM_ARG2, s_logxor)); | |
0f2d19dd JB |
552 | } |
553 | ||
f872b822 | 554 | SCM_PROC (s_logtest, "logtest", 2, 0, 0, scm_logtest); |
1cc91f1b | 555 | |
0f2d19dd | 556 | SCM |
f872b822 | 557 | scm_logtest (n1, n2) |
0f2d19dd JB |
558 | SCM n1; |
559 | SCM n2; | |
0f2d19dd | 560 | { |
f872b822 MD |
561 | return ((scm_num2ulong (n1, (char *) SCM_ARG1, s_logtest) |
562 | & scm_num2ulong (n2, (char *) SCM_ARG2, s_logtest)) | |
0f2d19dd JB |
563 | ? SCM_BOOL_T : SCM_BOOL_F); |
564 | } | |
565 | ||
566 | ||
f872b822 | 567 | SCM_PROC (s_logbit_p, "logbit?", 2, 0, 0, scm_logbit_p); |
1cc91f1b | 568 | |
0f2d19dd | 569 | SCM |
f872b822 | 570 | scm_logbit_p (n1, n2) |
0f2d19dd JB |
571 | SCM n1; |
572 | SCM n2; | |
0f2d19dd | 573 | { |
f872b822 MD |
574 | return (((1 << scm_num2long (n1, (char *) SCM_ARG1, s_logtest)) |
575 | & scm_num2ulong (n2, (char *) SCM_ARG2, s_logtest)) | |
0f2d19dd JB |
576 | ? SCM_BOOL_T : SCM_BOOL_F); |
577 | } | |
578 | ||
579 | #else | |
580 | ||
581 | SCM_PROC1 (s_logand, "logand", scm_tc7_asubr, scm_logand); | |
1cc91f1b | 582 | |
0f2d19dd | 583 | SCM |
f872b822 | 584 | scm_logand (n1, n2) |
0f2d19dd JB |
585 | SCM n1; |
586 | SCM n2; | |
0f2d19dd | 587 | { |
f872b822 | 588 | if (SCM_UNBNDP (n2)) |
d28da049 MD |
589 | { |
590 | if (SCM_UNBNDP (n1)) | |
591 | return SCM_MAKINUM (-1); | |
592 | return n1; | |
593 | } | |
f872b822 | 594 | return SCM_MAKINUM (SCM_INUM (n1) & SCM_INUM (n2)); |
0f2d19dd JB |
595 | } |
596 | ||
597 | SCM_PROC1 (s_logior, "logior", scm_tc7_asubr, scm_logior); | |
1cc91f1b | 598 | |
0f2d19dd | 599 | SCM |
f872b822 | 600 | scm_logior (n1, n2) |
0f2d19dd JB |
601 | SCM n1; |
602 | SCM n2; | |
0f2d19dd | 603 | { |
f872b822 | 604 | if (SCM_UNBNDP (n2)) |
d28da049 MD |
605 | { |
606 | if (SCM_UNBNDP (n1)) | |
607 | return SCM_INUM0; | |
608 | return n1; | |
609 | } | |
f872b822 | 610 | return SCM_MAKINUM (SCM_INUM (n1) | SCM_INUM (n2)); |
0f2d19dd JB |
611 | } |
612 | ||
613 | SCM_PROC1 (s_logxor, "logxor", scm_tc7_asubr, scm_logxor); | |
1cc91f1b | 614 | |
0f2d19dd | 615 | SCM |
f872b822 | 616 | scm_logxor (n1, n2) |
0f2d19dd JB |
617 | SCM n1; |
618 | SCM n2; | |
0f2d19dd | 619 | { |
f872b822 | 620 | if (SCM_UNBNDP (n2)) |
d28da049 MD |
621 | { |
622 | if (SCM_UNBNDP (n1)) | |
623 | return SCM_INUM0; | |
624 | return n1; | |
625 | } | |
f872b822 | 626 | return SCM_MAKINUM (SCM_INUM (n1) ^ SCM_INUM (n2)); |
0f2d19dd JB |
627 | } |
628 | ||
f872b822 | 629 | SCM_PROC (s_logtest, "logtest", 2, 0, 0, scm_logtest); |
1cc91f1b | 630 | |
0f2d19dd | 631 | SCM |
f872b822 | 632 | scm_logtest (n1, n2) |
0f2d19dd JB |
633 | SCM n1; |
634 | SCM n2; | |
0f2d19dd | 635 | { |
f872b822 MD |
636 | SCM_ASSERT (SCM_INUMP (n1), n1, SCM_ARG1, s_logtest); |
637 | SCM_ASSERT (SCM_INUMP (n2), n2, SCM_ARG2, s_logtest); | |
638 | return (SCM_INUM (n1) & SCM_INUM (n2)) ? SCM_BOOL_T : SCM_BOOL_F; | |
0f2d19dd JB |
639 | } |
640 | ||
f872b822 | 641 | SCM_PROC (s_logbit_p, "logbit?", 2, 0, 0, scm_logbit_p); |
1cc91f1b | 642 | |
0f2d19dd | 643 | SCM |
f872b822 | 644 | scm_logbit_p (n1, n2) |
0f2d19dd JB |
645 | SCM n1; |
646 | SCM n2; | |
0f2d19dd | 647 | { |
f872b822 MD |
648 | SCM_ASSERT (SCM_INUMP (n1) && SCM_INUM (n1) >= 0, n1, SCM_ARG1, s_logbit_p); |
649 | SCM_ASSERT (SCM_INUMP (n2), n2, SCM_ARG2, s_logbit_p); | |
650 | return ((1 << SCM_INUM (n1)) & SCM_INUM (n2)) ? SCM_BOOL_T : SCM_BOOL_F; | |
0f2d19dd JB |
651 | } |
652 | #endif | |
653 | ||
f872b822 | 654 | SCM_PROC (s_lognot, "lognot", 1, 0, 0, scm_lognot); |
1cc91f1b | 655 | |
0f2d19dd | 656 | SCM |
f872b822 | 657 | scm_lognot (n) |
0f2d19dd | 658 | SCM n; |
0f2d19dd | 659 | { |
f872b822 MD |
660 | SCM_ASSERT (SCM_INUMP (n), n, SCM_ARG1, s_lognot); |
661 | return scm_difference (SCM_MAKINUM (-1L), n); | |
0f2d19dd JB |
662 | } |
663 | ||
f872b822 | 664 | SCM_PROC (s_integer_expt, "integer-expt", 2, 0, 0, scm_integer_expt); |
1cc91f1b | 665 | |
0f2d19dd | 666 | SCM |
f872b822 | 667 | scm_integer_expt (z1, z2) |
0f2d19dd JB |
668 | SCM z1; |
669 | SCM z2; | |
0f2d19dd | 670 | { |
f872b822 | 671 | SCM acc = SCM_MAKINUM (1L); |
0f2d19dd | 672 | #ifdef SCM_BIGDIG |
f872b822 MD |
673 | if (SCM_INUM0 == z1 || acc == z1) |
674 | return z1; | |
675 | else if (SCM_MAKINUM (-1L) == z1) | |
676 | return SCM_BOOL_F == scm_even_p (z2) ? z1 : acc; | |
0f2d19dd | 677 | #endif |
f872b822 MD |
678 | SCM_ASSERT (SCM_INUMP (z2), z2, SCM_ARG2, s_integer_expt); |
679 | z2 = SCM_INUM (z2); | |
680 | if (z2 < 0) | |
681 | { | |
682 | z2 = -z2; | |
683 | z1 = scm_divide (z1, SCM_UNDEFINED); | |
684 | } | |
685 | while (1) | |
686 | { | |
687 | if (0 == z2) | |
688 | return acc; | |
689 | if (1 == z2) | |
690 | return scm_product (acc, z1); | |
691 | if (z2 & 1) | |
692 | acc = scm_product (acc, z1); | |
693 | z1 = scm_product (z1, z1); | |
694 | z2 >>= 1; | |
695 | } | |
0f2d19dd JB |
696 | } |
697 | ||
f872b822 | 698 | SCM_PROC (s_ash, "ash", 2, 0, 0, scm_ash); |
1cc91f1b | 699 | |
0f2d19dd | 700 | SCM |
f872b822 | 701 | scm_ash (n, cnt) |
0f2d19dd JB |
702 | SCM n; |
703 | SCM cnt; | |
0f2d19dd | 704 | { |
f872b822 MD |
705 | SCM res = SCM_INUM (n); |
706 | SCM_ASSERT (SCM_INUMP (cnt), cnt, SCM_ARG2, s_ash); | |
0f2d19dd | 707 | #ifdef SCM_BIGDIG |
f872b822 MD |
708 | if (cnt < 0) |
709 | { | |
710 | res = scm_integer_expt (SCM_MAKINUM (2), SCM_MAKINUM (-SCM_INUM (cnt))); | |
711 | if (SCM_NFALSEP (scm_negative_p (n))) | |
712 | return scm_sum (SCM_MAKINUM (-1L), | |
713 | scm_quotient (scm_sum (SCM_MAKINUM (1L), n), res)); | |
714 | else | |
715 | return scm_quotient (n, res); | |
716 | } | |
717 | else | |
718 | return scm_product (n, scm_integer_expt (SCM_MAKINUM (2), cnt)); | |
0f2d19dd | 719 | #else |
f872b822 MD |
720 | SCM_ASSERT (SCM_INUMP (n), n, SCM_ARG1, s_ash); |
721 | cnt = SCM_INUM (cnt); | |
722 | if (cnt < 0) | |
723 | return SCM_MAKINUM (SCM_SRS (res, -cnt)); | |
724 | res = SCM_MAKINUM (res << cnt); | |
725 | if (SCM_INUM (res) >> cnt != SCM_INUM (n)) | |
52859adf | 726 | scm_num_overflow (s_ash); |
0f2d19dd JB |
727 | return res; |
728 | #endif | |
729 | } | |
730 | ||
f872b822 | 731 | SCM_PROC (s_bit_extract, "bit-extract", 3, 0, 0, scm_bit_extract); |
1cc91f1b | 732 | |
0f2d19dd | 733 | SCM |
f872b822 | 734 | scm_bit_extract (n, start, end) |
0f2d19dd JB |
735 | SCM n; |
736 | SCM start; | |
737 | SCM end; | |
0f2d19dd | 738 | { |
f872b822 MD |
739 | SCM_ASSERT (SCM_INUMP (start), start, SCM_ARG2, s_bit_extract); |
740 | SCM_ASSERT (SCM_INUMP (end), end, SCM_ARG3, s_bit_extract); | |
741 | start = SCM_INUM (start); | |
742 | end = SCM_INUM (end); | |
743 | SCM_ASSERT (end >= start, SCM_MAKINUM (end), SCM_OUTOFRANGE, s_bit_extract); | |
0f2d19dd | 744 | #ifdef SCM_BIGDIG |
f872b822 | 745 | if (SCM_NINUMP (n)) |
0f2d19dd | 746 | return |
f872b822 MD |
747 | scm_logand (scm_difference (scm_integer_expt (SCM_MAKINUM (2), |
748 | SCM_MAKINUM (end - start)), | |
749 | SCM_MAKINUM (1L)), | |
750 | scm_ash (n, SCM_MAKINUM (-start))); | |
0f2d19dd | 751 | #else |
f872b822 | 752 | SCM_ASSERT (SCM_INUMP (n), n, SCM_ARG1, s_bit_extract); |
0f2d19dd | 753 | #endif |
f872b822 | 754 | return SCM_MAKINUM ((SCM_INUM (n) >> start) & ((1L << (end - start)) - 1)); |
0f2d19dd JB |
755 | } |
756 | ||
e4755e5c JB |
757 | static const char scm_logtab[] = { |
758 | 0, 1, 1, 2, 1, 2, 2, 3, 1, 2, 2, 3, 2, 3, 3, 4 | |
759 | }; | |
f872b822 | 760 | SCM_PROC (s_logcount, "logcount", 1, 0, 0, scm_logcount); |
1cc91f1b | 761 | |
0f2d19dd | 762 | SCM |
f872b822 | 763 | scm_logcount (n) |
0f2d19dd | 764 | SCM n; |
0f2d19dd JB |
765 | { |
766 | register unsigned long c = 0; | |
767 | register long nn; | |
768 | #ifdef SCM_BIGDIG | |
f872b822 MD |
769 | if (SCM_NINUMP (n)) |
770 | { | |
771 | scm_sizet i; | |
772 | SCM_BIGDIG *ds, d; | |
773 | SCM_ASSERT (SCM_NIMP (n) && SCM_BIGP (n), n, SCM_ARG1, s_logcount); | |
774 | if (SCM_BIGSIGN (n)) | |
775 | return scm_logcount (scm_difference (SCM_MAKINUM (-1L), n)); | |
776 | ds = SCM_BDIGITS (n); | |
777 | for (i = SCM_NUMDIGS (n); i--;) | |
778 | for (d = ds[i]; d; d >>= 4) | |
779 | c += scm_logtab[15 & d]; | |
780 | return SCM_MAKINUM (c); | |
781 | } | |
0f2d19dd | 782 | #else |
f872b822 | 783 | SCM_ASSERT (SCM_INUMP (n), n, SCM_ARG1, s_logcount); |
0f2d19dd | 784 | #endif |
f872b822 MD |
785 | if ((nn = SCM_INUM (n)) < 0) |
786 | nn = -1 - nn; | |
787 | for (; nn; nn >>= 4) | |
788 | c += scm_logtab[15 & nn]; | |
789 | return SCM_MAKINUM (c); | |
0f2d19dd JB |
790 | } |
791 | ||
e4755e5c JB |
792 | static const char scm_ilentab[] = { |
793 | 0, 1, 2, 2, 3, 3, 3, 3, 4, 4, 4, 4, 4, 4, 4, 4 | |
794 | }; | |
f872b822 | 795 | SCM_PROC (s_integer_length, "integer-length", 1, 0, 0, scm_integer_length); |
1cc91f1b | 796 | |
0f2d19dd | 797 | SCM |
f872b822 | 798 | scm_integer_length (n) |
0f2d19dd | 799 | SCM n; |
0f2d19dd JB |
800 | { |
801 | register unsigned long c = 0; | |
802 | register long nn; | |
803 | unsigned int l = 4; | |
804 | #ifdef SCM_BIGDIG | |
f872b822 MD |
805 | if (SCM_NINUMP (n)) |
806 | { | |
807 | SCM_BIGDIG *ds, d; | |
808 | SCM_ASSERT (SCM_NIMP (n) && SCM_BIGP (n), n, SCM_ARG1, s_integer_length); | |
809 | if (SCM_BIGSIGN (n)) | |
810 | return scm_integer_length (scm_difference (SCM_MAKINUM (-1L), n)); | |
811 | ds = SCM_BDIGITS (n); | |
812 | d = ds[c = SCM_NUMDIGS (n) - 1]; | |
813 | for (c *= SCM_BITSPERDIG; d; d >>= 4) | |
814 | { | |
815 | c += 4; | |
816 | l = scm_ilentab[15 & d]; | |
817 | } | |
818 | return SCM_MAKINUM (c - 4 + l); | |
819 | } | |
0f2d19dd | 820 | #else |
f872b822 | 821 | SCM_ASSERT (SCM_INUMP (n), n, SCM_ARG1, s_integer_length); |
0f2d19dd | 822 | #endif |
f872b822 MD |
823 | if ((nn = SCM_INUM (n)) < 0) |
824 | nn = -1 - nn; | |
825 | for (; nn; nn >>= 4) | |
826 | { | |
827 | c += 4; | |
828 | l = scm_ilentab[15 & nn]; | |
829 | } | |
830 | return SCM_MAKINUM (c - 4 + l); | |
0f2d19dd JB |
831 | } |
832 | ||
833 | ||
834 | #ifdef SCM_BIGDIG | |
e4755e5c | 835 | static const char s_bignum[] = "bignum"; |
1cc91f1b | 836 | |
0f2d19dd | 837 | SCM |
f872b822 | 838 | scm_mkbig (nlen, sign) |
0f2d19dd JB |
839 | scm_sizet nlen; |
840 | int sign; | |
0f2d19dd JB |
841 | { |
842 | SCM v = nlen; | |
2bf746cc JB |
843 | /* Cast to SCM to avoid signed/unsigned comparison warnings. */ |
844 | if (((v << 16) >> 16) != (SCM) nlen) | |
e4755e5c | 845 | scm_wta (SCM_MAKINUM (nlen), (char *) SCM_NALLOC, s_bignum); |
f872b822 | 846 | SCM_NEWCELL (v); |
0f2d19dd | 847 | SCM_DEFER_INTS; |
f872b822 | 848 | SCM_SETCHARS (v, scm_must_malloc ((long) (nlen * sizeof (SCM_BIGDIG)), |
e4755e5c | 849 | s_bignum)); |
f872b822 | 850 | SCM_SETNUMDIGS (v, nlen, sign ? scm_tc16_bigneg : scm_tc16_bigpos); |
0f2d19dd JB |
851 | SCM_ALLOW_INTS; |
852 | return v; | |
853 | } | |
854 | ||
1cc91f1b | 855 | |
0f2d19dd | 856 | SCM |
f872b822 | 857 | scm_big2inum (b, l) |
0f2d19dd JB |
858 | SCM b; |
859 | scm_sizet l; | |
0f2d19dd JB |
860 | { |
861 | unsigned long num = 0; | |
f872b822 MD |
862 | SCM_BIGDIG *tmp = SCM_BDIGITS (b); |
863 | while (l--) | |
864 | num = SCM_BIGUP (num) + tmp[l]; | |
865 | if (SCM_TYP16 (b) == scm_tc16_bigpos) | |
866 | { | |
867 | if (SCM_POSFIXABLE (num)) | |
868 | return SCM_MAKINUM (num); | |
869 | } | |
870 | else if (SCM_UNEGFIXABLE (num)) | |
871 | return SCM_MAKINUM (-num); | |
0f2d19dd JB |
872 | return b; |
873 | } | |
874 | ||
875 | ||
e4755e5c | 876 | static const char s_adjbig[] = "scm_adjbig"; |
1cc91f1b | 877 | |
0f2d19dd | 878 | SCM |
f872b822 | 879 | scm_adjbig (b, nlen) |
0f2d19dd JB |
880 | SCM b; |
881 | scm_sizet nlen; | |
0f2d19dd | 882 | { |
2bf746cc JB |
883 | scm_sizet nsiz = nlen; |
884 | if (((nsiz << 16) >> 16) != nlen) | |
f872b822 | 885 | scm_wta (scm_ulong2num (nsiz), (char *) SCM_NALLOC, s_adjbig); |
2bf746cc | 886 | |
0f2d19dd | 887 | SCM_DEFER_INTS; |
2bf746cc JB |
888 | { |
889 | SCM_BIGDIG *digits | |
890 | = ((SCM_BIGDIG *) | |
f872b822 MD |
891 | scm_must_realloc ((char *) SCM_CHARS (b), |
892 | (long) (SCM_NUMDIGS (b) * sizeof (SCM_BIGDIG)), | |
893 | (long) (nsiz * sizeof (SCM_BIGDIG)), s_adjbig)); | |
2bf746cc JB |
894 | |
895 | SCM_SETCHARS (b, digits); | |
f872b822 | 896 | SCM_SETNUMDIGS (b, nsiz, SCM_TYP16 (b)); |
2bf746cc | 897 | } |
0f2d19dd JB |
898 | SCM_ALLOW_INTS; |
899 | return b; | |
900 | } | |
901 | ||
902 | ||
1cc91f1b | 903 | |
0f2d19dd | 904 | SCM |
f872b822 | 905 | scm_normbig (b) |
0f2d19dd | 906 | SCM b; |
0f2d19dd | 907 | { |
f872b822 MD |
908 | #ifndef _UNICOS |
909 | scm_sizet nlen = SCM_NUMDIGS (b); | |
0f2d19dd | 910 | #else |
f872b822 | 911 | int nlen = SCM_NUMDIGS (b); /* unsigned nlen breaks on Cray when nlen => 0 */ |
0f2d19dd | 912 | #endif |
f872b822 MD |
913 | SCM_BIGDIG *zds = SCM_BDIGITS (b); |
914 | while (nlen-- && !zds[nlen]); | |
915 | nlen++; | |
916 | if (nlen * SCM_BITSPERDIG / SCM_CHAR_BIT <= sizeof (SCM)) | |
917 | if (SCM_INUMP (b = scm_big2inum (b, (scm_sizet) nlen))) | |
918 | return b; | |
919 | if (SCM_NUMDIGS (b) == nlen) | |
920 | return b; | |
921 | return scm_adjbig (b, (scm_sizet) nlen); | |
0f2d19dd JB |
922 | } |
923 | ||
924 | ||
1cc91f1b | 925 | |
0f2d19dd | 926 | SCM |
f872b822 | 927 | scm_copybig (b, sign) |
0f2d19dd JB |
928 | SCM b; |
929 | int sign; | |
0f2d19dd | 930 | { |
f872b822 MD |
931 | scm_sizet i = SCM_NUMDIGS (b); |
932 | SCM ans = scm_mkbig (i, sign); | |
933 | SCM_BIGDIG *src = SCM_BDIGITS (b), *dst = SCM_BDIGITS (ans); | |
934 | while (i--) | |
935 | dst[i] = src[i]; | |
0f2d19dd JB |
936 | return ans; |
937 | } | |
938 | ||
939 | ||
1cc91f1b | 940 | |
0f2d19dd | 941 | SCM |
f872b822 | 942 | scm_long2big (n) |
0f2d19dd | 943 | long n; |
0f2d19dd JB |
944 | { |
945 | scm_sizet i = 0; | |
946 | SCM_BIGDIG *digits; | |
f872b822 MD |
947 | SCM ans = scm_mkbig (SCM_DIGSPERLONG, n < 0); |
948 | digits = SCM_BDIGITS (ans); | |
949 | if (n < 0) | |
950 | n = -n; | |
951 | while (i < SCM_DIGSPERLONG) | |
952 | { | |
953 | digits[i++] = SCM_BIGLO (n); | |
954 | n = SCM_BIGDN ((unsigned long) n); | |
955 | } | |
0f2d19dd JB |
956 | return ans; |
957 | } | |
958 | ||
959 | #ifdef LONGLONGS | |
1cc91f1b | 960 | |
0f2d19dd | 961 | SCM |
f872b822 | 962 | scm_long_long2big (n) |
0f2d19dd | 963 | long_long n; |
0f2d19dd JB |
964 | { |
965 | scm_sizet i; | |
966 | SCM_BIGDIG *digits; | |
967 | SCM ans; | |
968 | int n_digits; | |
969 | ||
970 | { | |
971 | long tn; | |
972 | tn = (long) n; | |
f872b822 | 973 | if ((long long) tn == n) |
0f2d19dd JB |
974 | return scm_long2big (tn); |
975 | } | |
976 | ||
977 | { | |
978 | long_long tn; | |
979 | ||
980 | for (tn = n, n_digits = 0; | |
981 | tn; | |
f872b822 | 982 | ++n_digits, tn = SCM_BIGDN ((ulong_long) tn)) |
0f2d19dd JB |
983 | ; |
984 | } | |
985 | ||
986 | i = 0; | |
f872b822 MD |
987 | ans = scm_mkbig (n_digits, n < 0); |
988 | digits = SCM_BDIGITS (ans); | |
0f2d19dd JB |
989 | if (n < 0) |
990 | n = -n; | |
f872b822 MD |
991 | while (i < n_digits) |
992 | { | |
993 | digits[i++] = SCM_BIGLO (n); | |
994 | n = SCM_BIGDN ((ulong_long) n); | |
995 | } | |
0f2d19dd JB |
996 | return ans; |
997 | } | |
998 | #endif | |
999 | ||
1cc91f1b | 1000 | |
0f2d19dd | 1001 | SCM |
f872b822 MD |
1002 | scm_2ulong2big (np) |
1003 | unsigned long *np; | |
0f2d19dd JB |
1004 | { |
1005 | unsigned long n; | |
1006 | scm_sizet i; | |
1007 | SCM_BIGDIG *digits; | |
1008 | SCM ans; | |
1009 | ||
f872b822 MD |
1010 | ans = scm_mkbig (2 * SCM_DIGSPERLONG, 0); |
1011 | digits = SCM_BDIGITS (ans); | |
0f2d19dd JB |
1012 | |
1013 | n = np[0]; | |
1014 | for (i = 0; i < SCM_DIGSPERLONG; ++i) | |
1015 | { | |
f872b822 MD |
1016 | digits[i] = SCM_BIGLO (n); |
1017 | n = SCM_BIGDN ((unsigned long) n); | |
0f2d19dd JB |
1018 | } |
1019 | n = np[1]; | |
1020 | for (i = 0; i < SCM_DIGSPERLONG; ++i) | |
1021 | { | |
f872b822 MD |
1022 | digits[i + SCM_DIGSPERLONG] = SCM_BIGLO (n); |
1023 | n = SCM_BIGDN ((unsigned long) n); | |
0f2d19dd JB |
1024 | } |
1025 | return ans; | |
1026 | } | |
1027 | ||
1028 | ||
1cc91f1b | 1029 | |
0f2d19dd | 1030 | SCM |
f872b822 | 1031 | scm_ulong2big (n) |
0f2d19dd | 1032 | unsigned long n; |
0f2d19dd JB |
1033 | { |
1034 | scm_sizet i = 0; | |
1035 | SCM_BIGDIG *digits; | |
f872b822 MD |
1036 | SCM ans = scm_mkbig (SCM_DIGSPERLONG, 0); |
1037 | digits = SCM_BDIGITS (ans); | |
1038 | while (i < SCM_DIGSPERLONG) | |
1039 | { | |
1040 | digits[i++] = SCM_BIGLO (n); | |
1041 | n = SCM_BIGDN (n); | |
1042 | } | |
0f2d19dd JB |
1043 | return ans; |
1044 | } | |
1045 | ||
1046 | ||
1cc91f1b | 1047 | |
0f2d19dd | 1048 | int |
f872b822 | 1049 | scm_bigcomp (x, y) |
0f2d19dd JB |
1050 | SCM x; |
1051 | SCM y; | |
0f2d19dd | 1052 | { |
f872b822 MD |
1053 | int xsign = SCM_BIGSIGN (x); |
1054 | int ysign = SCM_BIGSIGN (y); | |
0f2d19dd | 1055 | scm_sizet xlen, ylen; |
2bf746cc JB |
1056 | |
1057 | /* Look at the signs, first. */ | |
f872b822 MD |
1058 | if (ysign < xsign) |
1059 | return 1; | |
1060 | if (ysign > xsign) | |
1061 | return -1; | |
2bf746cc JB |
1062 | |
1063 | /* They're the same sign, so see which one has more digits. Note | |
1064 | that, if they are negative, the longer number is the lesser. */ | |
f872b822 MD |
1065 | ylen = SCM_NUMDIGS (y); |
1066 | xlen = SCM_NUMDIGS (x); | |
2bf746cc JB |
1067 | if (ylen > xlen) |
1068 | return (xsign) ? -1 : 1; | |
f872b822 MD |
1069 | if (ylen < xlen) |
1070 | return (xsign) ? 1 : -1; | |
2bf746cc JB |
1071 | |
1072 | /* They have the same number of digits, so find the most significant | |
1073 | digit where they differ. */ | |
1074 | while (xlen) | |
1075 | { | |
1076 | --xlen; | |
1077 | if (SCM_BDIGITS (y)[xlen] != SCM_BDIGITS (x)[xlen]) | |
1078 | /* Make the discrimination based on the digit that differs. */ | |
f872b822 MD |
1079 | return ((SCM_BDIGITS (y)[xlen] > SCM_BDIGITS (x)[xlen]) |
1080 | ? (xsign ? -1 : 1) | |
1081 | : (xsign ? 1 : -1)); | |
2bf746cc JB |
1082 | } |
1083 | ||
1084 | /* The numbers are identical. */ | |
1085 | return 0; | |
0f2d19dd JB |
1086 | } |
1087 | ||
1088 | #ifndef SCM_DIGSTOOBIG | |
1089 | ||
1cc91f1b | 1090 | |
0f2d19dd | 1091 | long |
f872b822 | 1092 | scm_pseudolong (x) |
0f2d19dd | 1093 | long x; |
0f2d19dd | 1094 | { |
f872b822 MD |
1095 | union |
1096 | { | |
0f2d19dd JB |
1097 | long l; |
1098 | SCM_BIGDIG bd[SCM_DIGSPERLONG]; | |
f872b822 MD |
1099 | } |
1100 | p; | |
0f2d19dd | 1101 | scm_sizet i = 0; |
f872b822 MD |
1102 | if (x < 0) |
1103 | x = -x; | |
1104 | while (i < SCM_DIGSPERLONG) | |
1105 | { | |
1106 | p.bd[i++] = SCM_BIGLO (x); | |
1107 | x = SCM_BIGDN (x); | |
1108 | } | |
0f2d19dd JB |
1109 | /* p.bd[0] = SCM_BIGLO(x); p.bd[1] = SCM_BIGDN(x); */ |
1110 | return p.l; | |
1111 | } | |
1112 | ||
1113 | #else | |
1114 | ||
1cc91f1b | 1115 | |
0f2d19dd | 1116 | void |
f872b822 | 1117 | scm_longdigs (x, digs) |
0f2d19dd JB |
1118 | long x; |
1119 | SCM_BIGDIG digs[]; | |
0f2d19dd JB |
1120 | { |
1121 | scm_sizet i = 0; | |
f872b822 MD |
1122 | if (x < 0) |
1123 | x = -x; | |
1124 | while (i < SCM_DIGSPERLONG) | |
1125 | { | |
1126 | digs[i++] = SCM_BIGLO (x); | |
1127 | x = SCM_BIGDN (x); | |
1128 | } | |
0f2d19dd JB |
1129 | } |
1130 | #endif | |
1131 | ||
1132 | ||
1cc91f1b | 1133 | |
0f2d19dd | 1134 | SCM |
f872b822 | 1135 | scm_addbig (x, nx, xsgn, bigy, sgny) |
0f2d19dd JB |
1136 | SCM_BIGDIG *x; |
1137 | scm_sizet nx; | |
1138 | int xsgn; | |
1139 | SCM bigy; | |
1140 | int sgny; | |
0f2d19dd JB |
1141 | { |
1142 | /* Assumes nx <= SCM_NUMDIGS(bigy) */ | |
1143 | /* Assumes xsgn and sgny scm_equal either 0 or 0x0100 */ | |
1144 | long num = 0; | |
f872b822 MD |
1145 | scm_sizet i = 0, ny = SCM_NUMDIGS (bigy); |
1146 | SCM z = scm_copybig (bigy, SCM_BIGSIGN (bigy) ^ sgny); | |
1147 | SCM_BIGDIG *zds = SCM_BDIGITS (z); | |
1148 | if (xsgn ^ SCM_BIGSIGN (z)) | |
1149 | { | |
1150 | do | |
1151 | { | |
1152 | num += (long) zds[i] - x[i]; | |
1153 | if (num < 0) | |
1154 | { | |
1155 | zds[i] = num + SCM_BIGRAD; | |
1156 | num = -1; | |
1157 | } | |
1158 | else | |
1159 | { | |
1160 | zds[i] = SCM_BIGLO (num); | |
1161 | num = 0; | |
1162 | } | |
1163 | } | |
1164 | while (++i < nx); | |
1165 | if (num && nx == ny) | |
1166 | { | |
1167 | num = 1; | |
1168 | i = 0; | |
1169 | SCM_SETCAR (z, SCM_CAR (z) ^ 0x0100); | |
1170 | do | |
1171 | { | |
1172 | num += (SCM_BIGRAD - 1) - zds[i]; | |
1173 | zds[i++] = SCM_BIGLO (num); | |
1174 | num = SCM_BIGDN (num); | |
1175 | } | |
1176 | while (i < ny); | |
1177 | } | |
1178 | else | |
1179 | while (i < ny) | |
1180 | { | |
1181 | num += zds[i]; | |
1182 | if (num < 0) | |
1183 | { | |
1184 | zds[i++] = num + SCM_BIGRAD; | |
1185 | num = -1; | |
1186 | } | |
1187 | else | |
1188 | { | |
1189 | zds[i++] = SCM_BIGLO (num); | |
1190 | num = 0; | |
1191 | } | |
1192 | } | |
1193 | } | |
1194 | else | |
1195 | { | |
1196 | do | |
1197 | { | |
1198 | num += (long) zds[i] + x[i]; | |
1199 | zds[i++] = SCM_BIGLO (num); | |
1200 | num = SCM_BIGDN (num); | |
1201 | } | |
1202 | while (i < nx); | |
1203 | if (!num) | |
1204 | return z; | |
1205 | while (i < ny) | |
1206 | { | |
1207 | num += zds[i]; | |
1208 | zds[i++] = SCM_BIGLO (num); | |
1209 | num = SCM_BIGDN (num); | |
1210 | if (!num) | |
1211 | return z; | |
1212 | } | |
1213 | if (num) | |
1214 | { | |
1215 | z = scm_adjbig (z, ny + 1); | |
1216 | SCM_BDIGITS (z)[ny] = num; | |
1217 | return z; | |
1218 | } | |
1219 | } | |
1220 | return scm_normbig (z); | |
0f2d19dd JB |
1221 | } |
1222 | ||
1cc91f1b | 1223 | |
0f2d19dd | 1224 | SCM |
f872b822 | 1225 | scm_mulbig (x, nx, y, ny, sgn) |
0f2d19dd JB |
1226 | SCM_BIGDIG *x; |
1227 | scm_sizet nx; | |
1228 | SCM_BIGDIG *y; | |
1229 | scm_sizet ny; | |
1230 | int sgn; | |
0f2d19dd JB |
1231 | { |
1232 | scm_sizet i = 0, j = nx + ny; | |
1233 | unsigned long n = 0; | |
f872b822 MD |
1234 | SCM z = scm_mkbig (j, sgn); |
1235 | SCM_BIGDIG *zds = SCM_BDIGITS (z); | |
1236 | while (j--) | |
1237 | zds[j] = 0; | |
1238 | do | |
1239 | { | |
1240 | j = 0; | |
1241 | if (x[i]) | |
1242 | { | |
1243 | do | |
1244 | { | |
1245 | n += zds[i + j] + ((unsigned long) x[i] * y[j]); | |
1246 | zds[i + j++] = SCM_BIGLO (n); | |
1247 | n = SCM_BIGDN (n); | |
1248 | } | |
1249 | while (j < ny); | |
1250 | if (n) | |
1251 | { | |
1252 | zds[i + j] = n; | |
1253 | n = 0; | |
1254 | } | |
1255 | } | |
0f2d19dd | 1256 | } |
f872b822 MD |
1257 | while (++i < nx); |
1258 | return scm_normbig (z); | |
0f2d19dd JB |
1259 | } |
1260 | ||
1cc91f1b | 1261 | |
805df3e8 JB |
1262 | /* Sun's compiler complains about the fact that this function has an |
1263 | ANSI prototype in numbers.h, but a K&R declaration here, and the | |
1264 | two specify different promotions for the third argument. I'm going | |
1265 | to turn this into an ANSI declaration, and see if anyone complains | |
1266 | about it not being K&R. */ | |
1267 | ||
0f2d19dd | 1268 | unsigned int |
f872b822 MD |
1269 | scm_divbigdig (SCM_BIGDIG * ds, |
1270 | scm_sizet h, | |
1271 | SCM_BIGDIG div) | |
0f2d19dd JB |
1272 | { |
1273 | register unsigned long t2 = 0; | |
f872b822 MD |
1274 | while (h--) |
1275 | { | |
1276 | t2 = SCM_BIGUP (t2) + ds[h]; | |
1277 | ds[h] = t2 / div; | |
1278 | t2 %= div; | |
1279 | } | |
0f2d19dd JB |
1280 | return t2; |
1281 | } | |
1282 | ||
1283 | ||
1cc91f1b | 1284 | |
0f2d19dd | 1285 | SCM |
f872b822 | 1286 | scm_divbigint (x, z, sgn, mode) |
0f2d19dd JB |
1287 | SCM x; |
1288 | long z; | |
1289 | int sgn; | |
1290 | int mode; | |
0f2d19dd | 1291 | { |
f872b822 MD |
1292 | if (z < 0) |
1293 | z = -z; | |
1294 | if (z < SCM_BIGRAD) | |
1295 | { | |
1296 | register unsigned long t2 = 0; | |
1297 | register SCM_BIGDIG *ds = SCM_BDIGITS (x); | |
1298 | scm_sizet nd = SCM_NUMDIGS (x); | |
1299 | while (nd--) | |
1300 | t2 = (SCM_BIGUP (t2) + ds[nd]) % z; | |
1301 | if (mode && t2) | |
1302 | t2 = z - t2; | |
1303 | return SCM_MAKINUM (sgn ? -t2 : t2); | |
1304 | } | |
0f2d19dd JB |
1305 | { |
1306 | #ifndef SCM_DIGSTOOBIG | |
f872b822 MD |
1307 | unsigned long t2 = scm_pseudolong (z); |
1308 | return scm_divbigbig (SCM_BDIGITS (x), SCM_NUMDIGS (x), | |
1309 | (SCM_BIGDIG *) & t2, SCM_DIGSPERLONG, | |
1310 | sgn, mode); | |
0f2d19dd JB |
1311 | #else |
1312 | SCM_BIGDIG t2[SCM_DIGSPERLONG]; | |
f872b822 MD |
1313 | scm_longdigs (z, t2); |
1314 | return scm_divbigbig (SCM_BDIGITS (x), SCM_NUMDIGS (x), | |
1315 | t2, SCM_DIGSPERLONG, | |
1316 | sgn, mode); | |
0f2d19dd JB |
1317 | #endif |
1318 | } | |
1319 | } | |
1320 | ||
1cc91f1b | 1321 | |
0f2d19dd | 1322 | SCM |
f872b822 | 1323 | scm_divbigbig (x, nx, y, ny, sgn, modes) |
0f2d19dd JB |
1324 | SCM_BIGDIG *x; |
1325 | scm_sizet nx; | |
1326 | SCM_BIGDIG *y; | |
1327 | scm_sizet ny; | |
1328 | int sgn; | |
1329 | int modes; | |
0f2d19dd JB |
1330 | { |
1331 | /* modes description | |
f872b822 MD |
1332 | 0 remainder |
1333 | 1 scm_modulo | |
1334 | 2 quotient | |
1335 | 3 quotient but returns 0 if division is not exact. */ | |
0f2d19dd JB |
1336 | scm_sizet i = 0, j = 0; |
1337 | long num = 0; | |
1338 | unsigned long t2 = 0; | |
1339 | SCM z, newy; | |
f872b822 | 1340 | SCM_BIGDIG d = 0, qhat, *zds, *yds; |
0f2d19dd JB |
1341 | /* algorithm requires nx >= ny */ |
1342 | if (nx < ny) | |
f872b822 MD |
1343 | switch (modes) |
1344 | { | |
1345 | case 0: /* remainder -- just return x */ | |
1346 | z = scm_mkbig (nx, sgn); | |
1347 | zds = SCM_BDIGITS (z); | |
1348 | do | |
1349 | { | |
1350 | zds[i] = x[i]; | |
1351 | } | |
1352 | while (++i < nx); | |
1353 | return z; | |
1354 | case 1: /* scm_modulo -- return y-x */ | |
1355 | z = scm_mkbig (ny, sgn); | |
1356 | zds = SCM_BDIGITS (z); | |
1357 | do | |
1358 | { | |
1359 | num += (long) y[i] - x[i]; | |
1360 | if (num < 0) | |
1361 | { | |
1362 | zds[i] = num + SCM_BIGRAD; | |
1363 | num = -1; | |
1364 | } | |
1365 | else | |
1366 | { | |
1367 | zds[i] = num; | |
1368 | num = 0; | |
1369 | } | |
1370 | } | |
1371 | while (++i < nx); | |
1372 | while (i < ny) | |
1373 | { | |
1374 | num += y[i]; | |
1375 | if (num < 0) | |
1376 | { | |
1377 | zds[i++] = num + SCM_BIGRAD; | |
1378 | num = -1; | |
1379 | } | |
1380 | else | |
1381 | { | |
1382 | zds[i++] = num; | |
1383 | num = 0; | |
1384 | } | |
1385 | } | |
1386 | goto doadj; | |
1387 | case 2: | |
1388 | return SCM_INUM0; /* quotient is zero */ | |
1389 | case 3: | |
1390 | return 0; /* the division is not exact */ | |
0f2d19dd | 1391 | } |
f872b822 MD |
1392 | |
1393 | z = scm_mkbig (nx == ny ? nx + 2 : nx + 1, sgn); | |
1394 | zds = SCM_BDIGITS (z); | |
1395 | if (nx == ny) | |
1396 | zds[nx + 1] = 0; | |
1397 | while (!y[ny - 1]) | |
1398 | ny--; /* in case y came in as a psuedolong */ | |
1399 | if (y[ny - 1] < (SCM_BIGRAD >> 1)) | |
1400 | { /* normalize operands */ | |
1401 | d = SCM_BIGRAD / (y[ny - 1] + 1); | |
1402 | newy = scm_mkbig (ny, 0); | |
1403 | yds = SCM_BDIGITS (newy); | |
1404 | while (j < ny) | |
1405 | { | |
1406 | t2 += (unsigned long) y[j] * d; | |
1407 | yds[j++] = SCM_BIGLO (t2); | |
1408 | t2 = SCM_BIGDN (t2); | |
1409 | } | |
1410 | y = yds; | |
1411 | j = 0; | |
1412 | t2 = 0; | |
1413 | while (j < nx) | |
1414 | { | |
1415 | t2 += (unsigned long) x[j] * d; | |
1416 | zds[j++] = SCM_BIGLO (t2); | |
1417 | t2 = SCM_BIGDN (t2); | |
1418 | } | |
1419 | zds[j] = t2; | |
1420 | } | |
1421 | else | |
1422 | { | |
1423 | zds[j = nx] = 0; | |
1424 | while (j--) | |
1425 | zds[j] = x[j]; | |
1426 | } | |
1427 | j = nx == ny ? nx + 1 : nx; /* dividend needs more digits than divisor */ | |
1428 | do | |
1429 | { /* loop over digits of quotient */ | |
1430 | if (zds[j] == y[ny - 1]) | |
1431 | qhat = SCM_BIGRAD - 1; | |
1432 | else | |
1433 | qhat = (SCM_BIGUP (zds[j]) + zds[j - 1]) / y[ny - 1]; | |
1434 | if (!qhat) | |
1435 | continue; | |
1436 | i = 0; | |
1437 | num = 0; | |
1438 | t2 = 0; | |
1439 | do | |
1440 | { /* multiply and subtract */ | |
1441 | t2 += (unsigned long) y[i] * qhat; | |
1442 | num += zds[j - ny + i] - SCM_BIGLO (t2); | |
1443 | if (num < 0) | |
1444 | { | |
1445 | zds[j - ny + i] = num + SCM_BIGRAD; | |
1446 | num = -1; | |
1447 | } | |
1448 | else | |
1449 | { | |
1450 | zds[j - ny + i] = num; | |
1451 | num = 0; | |
1452 | } | |
1453 | t2 = SCM_BIGDN (t2); | |
1454 | } | |
1455 | while (++i < ny); | |
1456 | num += zds[j - ny + i] - t2; /* borrow from high digit; don't update */ | |
1457 | while (num) | |
1458 | { /* "add back" required */ | |
1459 | i = 0; | |
1460 | num = 0; | |
1461 | qhat--; | |
1462 | do | |
1463 | { | |
1464 | num += (long) zds[j - ny + i] + y[i]; | |
1465 | zds[j - ny + i] = SCM_BIGLO (num); | |
1466 | num = SCM_BIGDN (num); | |
1467 | } | |
1468 | while (++i < ny); | |
1469 | num--; | |
1470 | } | |
1471 | if (modes & 2) | |
1472 | zds[j] = qhat; | |
1473 | } | |
1474 | while (--j >= ny); | |
1475 | switch (modes) | |
1476 | { | |
1477 | case 3: /* check that remainder==0 */ | |
1478 | for (j = ny; j && !zds[j - 1]; --j); | |
1479 | if (j) | |
1480 | return 0; | |
1481 | case 2: /* move quotient down in z */ | |
1482 | j = (nx == ny ? nx + 2 : nx + 1) - ny; | |
1483 | for (i = 0; i < j; i++) | |
1484 | zds[i] = zds[i + ny]; | |
1485 | ny = i; | |
1486 | break; | |
1487 | case 1: /* subtract for scm_modulo */ | |
1488 | i = 0; | |
1489 | num = 0; | |
1490 | j = 0; | |
1491 | do | |
1492 | { | |
1493 | num += y[i] - zds[i]; | |
1494 | j = j | zds[i]; | |
1495 | if (num < 0) | |
1496 | { | |
1497 | zds[i] = num + SCM_BIGRAD; | |
1498 | num = -1; | |
1499 | } | |
1500 | else | |
1501 | { | |
1502 | zds[i] = num; | |
1503 | num = 0; | |
1504 | } | |
1505 | } | |
1506 | while (++i < ny); | |
1507 | if (!j) | |
1508 | return SCM_INUM0; | |
1509 | case 0: /* just normalize remainder */ | |
1510 | if (d) | |
1511 | scm_divbigdig (zds, ny, d); | |
1512 | } | |
0f2d19dd | 1513 | doadj: |
f872b822 MD |
1514 | for (j = ny; j && !zds[j - 1]; --j); |
1515 | if (j * SCM_BITSPERDIG <= sizeof (SCM) * SCM_CHAR_BIT) | |
1516 | if (SCM_INUMP (z = scm_big2inum (z, j))) | |
1517 | return z; | |
1518 | return scm_adjbig (z, j); | |
0f2d19dd JB |
1519 | } |
1520 | #endif | |
f872b822 | 1521 | \f |
0f2d19dd JB |
1522 | |
1523 | ||
1524 | ||
0f2d19dd JB |
1525 | |
1526 | /*** NUMBERS -> STRINGS ***/ | |
1527 | #ifdef SCM_FLOATS | |
1528 | int scm_dblprec; | |
e4755e5c | 1529 | static const double fx[] = |
f872b822 MD |
1530 | { 0.0, 5e-1, 5e-2, 5e-3, 5e-4, 5e-5, |
1531 | 5e-6, 5e-7, 5e-8, 5e-9, 5e-10, | |
1532 | 5e-11, 5e-12, 5e-13, 5e-14, 5e-15, | |
1533 | 5e-16, 5e-17, 5e-18, 5e-19, 5e-20}; | |
0f2d19dd JB |
1534 | |
1535 | ||
1536 | ||
1cc91f1b JB |
1537 | |
1538 | static scm_sizet idbl2str SCM_P ((double f, char *a)); | |
1539 | ||
0f2d19dd | 1540 | static scm_sizet |
f872b822 | 1541 | idbl2str (f, a) |
0f2d19dd JB |
1542 | double f; |
1543 | char *a; | |
0f2d19dd JB |
1544 | { |
1545 | int efmt, dpt, d, i, wp = scm_dblprec; | |
1546 | scm_sizet ch = 0; | |
1547 | int exp = 0; | |
1548 | ||
f872b822 MD |
1549 | if (f == 0.0) |
1550 | goto zero; /*{a[0]='0'; a[1]='.'; a[2]='0'; return 3;} */ | |
1551 | if (f < 0.0) | |
1552 | { | |
1553 | f = -f; | |
1554 | a[ch++] = '-'; | |
1555 | } | |
1556 | else if (f > 0.0); | |
1557 | else | |
1558 | goto funny; | |
1559 | if (IS_INF (f)) | |
1560 | { | |
1561 | if (ch == 0) | |
1562 | a[ch++] = '+'; | |
1563 | funny: | |
1564 | a[ch++] = '#'; | |
1565 | a[ch++] = '.'; | |
1566 | a[ch++] = '#'; | |
1567 | return ch; | |
1568 | } | |
1569 | #ifdef DBL_MIN_10_EXP /* Prevent unnormalized values, as from | |
1570 | make-uniform-vector, from causing infinite loops. */ | |
1571 | while (f < 1.0) | |
1572 | { | |
1573 | f *= 10.0; | |
1574 | if (exp-- < DBL_MIN_10_EXP) | |
1575 | goto funny; | |
1576 | } | |
1577 | while (f > 10.0) | |
1578 | { | |
1579 | f *= 0.10; | |
1580 | if (exp++ > DBL_MAX_10_EXP) | |
1581 | goto funny; | |
1582 | } | |
1583 | #else | |
1584 | while (f < 1.0) | |
1585 | { | |
1586 | f *= 10.0; | |
1587 | exp--; | |
1588 | } | |
1589 | while (f > 10.0) | |
1590 | { | |
1591 | f /= 10.0; | |
1592 | exp++; | |
1593 | } | |
1594 | #endif | |
1595 | if (f + fx[wp] >= 10.0) | |
1596 | { | |
1597 | f = 1.0; | |
1598 | exp++; | |
1599 | } | |
0f2d19dd | 1600 | zero: |
f872b822 MD |
1601 | #ifdef ENGNOT |
1602 | dpt = (exp + 9999) % 3; | |
0f2d19dd JB |
1603 | exp -= dpt++; |
1604 | efmt = 1; | |
f872b822 MD |
1605 | #else |
1606 | efmt = (exp < -3) || (exp > wp + 2); | |
0f2d19dd | 1607 | if (!efmt) |
cda139a7 MD |
1608 | { |
1609 | if (exp < 0) | |
1610 | { | |
1611 | a[ch++] = '0'; | |
1612 | a[ch++] = '.'; | |
1613 | dpt = exp; | |
f872b822 MD |
1614 | while (++dpt) |
1615 | a[ch++] = '0'; | |
cda139a7 MD |
1616 | } |
1617 | else | |
f872b822 | 1618 | dpt = exp + 1; |
cda139a7 | 1619 | } |
0f2d19dd JB |
1620 | else |
1621 | dpt = 1; | |
f872b822 MD |
1622 | #endif |
1623 | ||
1624 | do | |
1625 | { | |
1626 | d = f; | |
1627 | f -= d; | |
1628 | a[ch++] = d + '0'; | |
1629 | if (f < fx[wp]) | |
1630 | break; | |
1631 | if (f + fx[wp] >= 1.0) | |
1632 | { | |
1633 | a[ch - 1]++; | |
1634 | break; | |
1635 | } | |
1636 | f *= 10.0; | |
1637 | if (!(--dpt)) | |
1638 | a[ch++] = '.'; | |
0f2d19dd | 1639 | } |
f872b822 | 1640 | while (wp--); |
0f2d19dd JB |
1641 | |
1642 | if (dpt > 0) | |
cda139a7 | 1643 | { |
f872b822 | 1644 | #ifndef ENGNOT |
cda139a7 MD |
1645 | if ((dpt > 4) && (exp > 6)) |
1646 | { | |
f872b822 | 1647 | d = (a[0] == '-' ? 2 : 1); |
cda139a7 | 1648 | for (i = ch++; i > d; i--) |
f872b822 | 1649 | a[i] = a[i - 1]; |
cda139a7 MD |
1650 | a[d] = '.'; |
1651 | efmt = 1; | |
1652 | } | |
1653 | else | |
f872b822 | 1654 | #endif |
cda139a7 | 1655 | { |
f872b822 MD |
1656 | while (--dpt) |
1657 | a[ch++] = '0'; | |
cda139a7 MD |
1658 | a[ch++] = '.'; |
1659 | } | |
1660 | } | |
f872b822 MD |
1661 | if (a[ch - 1] == '.') |
1662 | a[ch++] = '0'; /* trailing zero */ | |
1663 | if (efmt && exp) | |
1664 | { | |
1665 | a[ch++] = 'e'; | |
1666 | if (exp < 0) | |
1667 | { | |
1668 | exp = -exp; | |
1669 | a[ch++] = '-'; | |
1670 | } | |
1671 | for (i = 10; i <= exp; i *= 10); | |
1672 | for (i /= 10; i; i /= 10) | |
1673 | { | |
1674 | a[ch++] = exp / i + '0'; | |
1675 | exp %= i; | |
1676 | } | |
0f2d19dd | 1677 | } |
0f2d19dd JB |
1678 | return ch; |
1679 | } | |
1680 | ||
1cc91f1b JB |
1681 | |
1682 | static scm_sizet iflo2str SCM_P ((SCM flt, char *str)); | |
1683 | ||
0f2d19dd | 1684 | static scm_sizet |
f872b822 | 1685 | iflo2str (flt, str) |
0f2d19dd JB |
1686 | SCM flt; |
1687 | char *str; | |
0f2d19dd JB |
1688 | { |
1689 | scm_sizet i; | |
f872b822 MD |
1690 | #ifdef SCM_SINGLES |
1691 | if (SCM_SINGP (flt)) | |
1692 | i = idbl2str (SCM_FLO (flt), str); | |
0f2d19dd | 1693 | else |
f872b822 MD |
1694 | #endif |
1695 | i = idbl2str (SCM_REAL (flt), str); | |
1696 | if (SCM_CPLXP (flt)) | |
1697 | { | |
1698 | if (0 <= SCM_IMAG (flt)) /* jeh */ | |
1699 | str[i++] = '+'; /* jeh */ | |
1700 | i += idbl2str (SCM_IMAG (flt), &str[i]); | |
1701 | str[i++] = 'i'; | |
1702 | } | |
0f2d19dd JB |
1703 | return i; |
1704 | } | |
f872b822 | 1705 | #endif /* SCM_FLOATS */ |
0f2d19dd | 1706 | |
1cc91f1b | 1707 | |
0f2d19dd | 1708 | scm_sizet |
f872b822 | 1709 | scm_iint2str (num, rad, p) |
0f2d19dd JB |
1710 | long num; |
1711 | int rad; | |
1712 | char *p; | |
0f2d19dd JB |
1713 | { |
1714 | scm_sizet j; | |
1715 | register int i = 1, d; | |
1716 | register long n = num; | |
f872b822 MD |
1717 | if (n < 0) |
1718 | { | |
1719 | n = -n; | |
1720 | i++; | |
1721 | } | |
1722 | for (n /= rad; n > 0; n /= rad) | |
1723 | i++; | |
0f2d19dd JB |
1724 | j = i; |
1725 | n = num; | |
f872b822 MD |
1726 | if (n < 0) |
1727 | { | |
1728 | n = -n; | |
1729 | *p++ = '-'; | |
1730 | i--; | |
1731 | } | |
1732 | while (i--) | |
1733 | { | |
1734 | d = n % rad; | |
1735 | n /= rad; | |
1736 | p[i] = d + ((d < 10) ? '0' : 'a' - 10); | |
1737 | } | |
0f2d19dd JB |
1738 | return j; |
1739 | } | |
1740 | ||
1741 | ||
1742 | #ifdef SCM_BIGDIG | |
1cc91f1b JB |
1743 | |
1744 | static SCM big2str SCM_P ((SCM b, register unsigned int radix)); | |
1745 | ||
0f2d19dd | 1746 | static SCM |
f872b822 | 1747 | big2str (b, radix) |
0f2d19dd JB |
1748 | SCM b; |
1749 | register unsigned int radix; | |
0f2d19dd | 1750 | { |
f872b822 MD |
1751 | SCM t = scm_copybig (b, 0); /* sign of temp doesn't matter */ |
1752 | register SCM_BIGDIG *ds = SCM_BDIGITS (t); | |
1753 | scm_sizet i = SCM_NUMDIGS (t); | |
1754 | scm_sizet j = radix == 16 ? (SCM_BITSPERDIG * i) / 4 + 2 | |
1755 | : radix >= 10 ? (SCM_BITSPERDIG * i * 241L) / 800 + 2 | |
1756 | : (SCM_BITSPERDIG * i) + 2; | |
0f2d19dd JB |
1757 | scm_sizet k = 0; |
1758 | scm_sizet radct = 0; | |
1759 | scm_sizet ch; /* jeh */ | |
1760 | SCM_BIGDIG radpow = 1, radmod = 0; | |
f872b822 MD |
1761 | SCM ss = scm_makstr ((long) j, 0); |
1762 | char *s = SCM_CHARS (ss), c; | |
1763 | while ((long) radpow * radix < SCM_BIGRAD) | |
1764 | { | |
1765 | radpow *= radix; | |
1766 | radct++; | |
1767 | } | |
1768 | s[0] = scm_tc16_bigneg == SCM_TYP16 (b) ? '-' : '+'; | |
1769 | while ((i || radmod) && j) | |
1770 | { | |
1771 | if (k == 0) | |
1772 | { | |
1773 | radmod = (SCM_BIGDIG) scm_divbigdig (ds, i, radpow); | |
1774 | k = radct; | |
1775 | if (!ds[i - 1]) | |
1776 | i--; | |
1777 | } | |
1778 | c = radmod % radix; | |
1779 | radmod /= radix; | |
1780 | k--; | |
1781 | s[--j] = c < 10 ? c + '0' : c + 'a' - 10; | |
1782 | } | |
0f2d19dd | 1783 | ch = s[0] == '-' ? 1 : 0; /* jeh */ |
f872b822 MD |
1784 | if (ch < j) |
1785 | { /* jeh */ | |
1786 | for (i = j; j < SCM_LENGTH (ss); j++) | |
1787 | s[ch + j - i] = s[j]; /* jeh */ | |
1788 | scm_vector_set_length_x (ss, /* jeh */ | |
1789 | (SCM) SCM_MAKINUM (ch + SCM_LENGTH (ss) - i)); | |
1790 | } | |
b098016b JB |
1791 | |
1792 | return scm_return_first (ss, t); | |
0f2d19dd JB |
1793 | } |
1794 | #endif | |
1795 | ||
1796 | ||
f872b822 | 1797 | SCM_PROC (s_number_to_string, "number->string", 1, 1, 0, scm_number_to_string); |
1cc91f1b | 1798 | |
0f2d19dd | 1799 | SCM |
f872b822 | 1800 | scm_number_to_string (x, radix) |
0f2d19dd JB |
1801 | SCM x; |
1802 | SCM radix; | |
0f2d19dd | 1803 | { |
f872b822 MD |
1804 | if (SCM_UNBNDP (radix)) |
1805 | radix = SCM_MAKINUM (10L); | |
1806 | else | |
1807 | SCM_ASSERT (SCM_INUMP (radix), radix, SCM_ARG2, s_number_to_string); | |
0f2d19dd | 1808 | #ifdef SCM_FLOATS |
f872b822 MD |
1809 | if (SCM_NINUMP (x)) |
1810 | { | |
1811 | char num_buf[SCM_FLOBUFLEN]; | |
1812 | #ifdef SCM_BIGDIG | |
1813 | SCM_ASRTGO (SCM_NIMP (x), badx); | |
1814 | if (SCM_BIGP (x)) | |
1815 | return big2str (x, (unsigned int) SCM_INUM (radix)); | |
1816 | #ifndef SCM_RECKLESS | |
1817 | if (!(SCM_INEXP (x))) | |
1818 | { | |
1819 | badx: | |
1820 | scm_wta (x, (char *) SCM_ARG1, s_number_to_string); | |
1821 | } | |
1822 | #endif | |
0f2d19dd | 1823 | #else |
f872b822 MD |
1824 | SCM_ASSERT (SCM_NIMP (x) && SCM_INEXP (x), |
1825 | x, SCM_ARG1, s_number_to_string); | |
0f2d19dd | 1826 | #endif |
f872b822 MD |
1827 | return scm_makfromstr (num_buf, iflo2str (x, num_buf), 0); |
1828 | } | |
1829 | #else | |
1830 | #ifdef SCM_BIGDIG | |
1831 | if (SCM_NINUMP (x)) | |
1832 | { | |
1833 | SCM_ASSERT (SCM_NIMP (x) && SCM_BIGP (x), | |
1834 | x, SCM_ARG1, s_number_to_string); | |
1835 | return big2str (x, (unsigned int) SCM_INUM (radix)); | |
1836 | } | |
1837 | #else | |
1838 | SCM_ASSERT (SCM_INUMP (x), x, SCM_ARG1, s_number_to_string); | |
1839 | #endif | |
1840 | #endif | |
1841 | { | |
1842 | char num_buf[SCM_INTBUFLEN]; | |
1843 | return scm_makfromstr (num_buf, | |
1844 | scm_iint2str (SCM_INUM (x), | |
1845 | (int) SCM_INUM (radix), | |
1846 | num_buf), | |
1847 | 0); | |
0f2d19dd JB |
1848 | } |
1849 | } | |
1850 | ||
1851 | ||
1852 | /* These print routines are stubbed here so that scm_repl.c doesn't need | |
1853 | SCM_FLOATS or SCM_BIGDIGs conditionals */ | |
1cc91f1b | 1854 | |
0f2d19dd | 1855 | int |
f872b822 | 1856 | scm_floprint (sexp, port, pstate) |
0f2d19dd JB |
1857 | SCM sexp; |
1858 | SCM port; | |
19402679 | 1859 | scm_print_state *pstate; |
0f2d19dd JB |
1860 | { |
1861 | #ifdef SCM_FLOATS | |
1862 | char num_buf[SCM_FLOBUFLEN]; | |
f872b822 | 1863 | scm_lfwrite (num_buf, iflo2str (sexp, num_buf), port); |
0f2d19dd | 1864 | #else |
f872b822 | 1865 | scm_ipruk ("float", sexp, port); |
0f2d19dd JB |
1866 | #endif |
1867 | return !0; | |
1868 | } | |
1869 | ||
1870 | ||
1cc91f1b | 1871 | |
0f2d19dd | 1872 | int |
f872b822 | 1873 | scm_bigprint (exp, port, pstate) |
0f2d19dd JB |
1874 | SCM exp; |
1875 | SCM port; | |
19402679 | 1876 | scm_print_state *pstate; |
0f2d19dd JB |
1877 | { |
1878 | #ifdef SCM_BIGDIG | |
f872b822 MD |
1879 | exp = big2str (exp, (unsigned int) 10); |
1880 | scm_lfwrite (SCM_CHARS (exp), (scm_sizet) SCM_LENGTH (exp), port); | |
0f2d19dd | 1881 | #else |
f872b822 | 1882 | scm_ipruk ("bignum", exp, port); |
0f2d19dd JB |
1883 | #endif |
1884 | return !0; | |
1885 | } | |
1886 | /*** END nums->strs ***/ | |
1887 | ||
1888 | /*** STRINGS -> NUMBERS ***/ | |
2a8fecee | 1889 | |
1cc91f1b JB |
1890 | static SCM scm_small_istr2int SCM_P ((char *str, long len, long radix)); |
1891 | ||
2a8fecee | 1892 | static SCM |
f872b822 | 1893 | scm_small_istr2int (str, len, radix) |
2a8fecee JB |
1894 | char *str; |
1895 | long len; | |
1896 | long radix; | |
1897 | { | |
1898 | register long n = 0, ln; | |
1899 | register int c; | |
1900 | register int i = 0; | |
1901 | int lead_neg = 0; | |
f872b822 MD |
1902 | if (0 >= len) |
1903 | return SCM_BOOL_F; /* zero scm_length */ | |
1904 | switch (*str) | |
1905 | { /* leading sign */ | |
1906 | case '-': | |
1907 | lead_neg = 1; | |
1908 | case '+': | |
1909 | if (++i == len) | |
1910 | return SCM_BOOL_F; /* bad if lone `+' or `-' */ | |
1911 | } | |
2a8fecee | 1912 | |
f872b822 MD |
1913 | do |
1914 | { | |
1915 | switch (c = str[i++]) | |
1916 | { | |
1917 | case DIGITS: | |
1918 | c = c - '0'; | |
1919 | goto accumulate; | |
1920 | case 'A': | |
1921 | case 'B': | |
1922 | case 'C': | |
1923 | case 'D': | |
1924 | case 'E': | |
1925 | case 'F': | |
1926 | c = c - 'A' + 10; | |
1927 | goto accumulate; | |
1928 | case 'a': | |
1929 | case 'b': | |
1930 | case 'c': | |
1931 | case 'd': | |
1932 | case 'e': | |
1933 | case 'f': | |
1934 | c = c - 'a' + 10; | |
1935 | accumulate: | |
1936 | if (c >= radix) | |
1937 | return SCM_BOOL_F; /* bad digit for radix */ | |
1938 | ln = n; | |
1939 | n = n * radix - c; | |
1940 | /* Negation is a workaround for HP700 cc bug */ | |
1941 | if (n > ln || (-n > -SCM_MOST_NEGATIVE_FIXNUM)) | |
1942 | goto ovfl; | |
1943 | break; | |
1944 | default: | |
1945 | return SCM_BOOL_F; /* not a digit */ | |
1946 | } | |
2a8fecee | 1947 | } |
f872b822 MD |
1948 | while (i < len); |
1949 | if (!lead_neg) | |
1950 | if ((n = -n) > SCM_MOST_POSITIVE_FIXNUM) | |
1951 | goto ovfl; | |
1952 | return SCM_MAKINUM (n); | |
2a8fecee JB |
1953 | ovfl: /* overflow scheme integer */ |
1954 | return SCM_BOOL_F; | |
1955 | } | |
1956 | ||
1957 | ||
1cc91f1b | 1958 | |
0f2d19dd | 1959 | SCM |
f872b822 | 1960 | scm_istr2int (str, len, radix) |
0f2d19dd JB |
1961 | char *str; |
1962 | long len; | |
1963 | long radix; | |
0f2d19dd JB |
1964 | { |
1965 | scm_sizet j; | |
1966 | register scm_sizet k, blen = 1; | |
1967 | scm_sizet i = 0; | |
1968 | int c; | |
1969 | SCM res; | |
1970 | register SCM_BIGDIG *ds; | |
1971 | register unsigned long t2; | |
1972 | ||
f872b822 MD |
1973 | if (0 >= len) |
1974 | return SCM_BOOL_F; /* zero scm_length */ | |
2a8fecee JB |
1975 | |
1976 | /* Short numbers we parse directly into an int, to avoid the overhead | |
1977 | of creating a bignum. */ | |
1978 | if (len < 6) | |
1979 | return scm_small_istr2int (str, len, radix); | |
1980 | ||
f872b822 MD |
1981 | if (16 == radix) |
1982 | j = 1 + (4 * len * sizeof (char)) / (SCM_BITSPERDIG); | |
0f2d19dd | 1983 | else if (10 <= radix) |
f872b822 MD |
1984 | j = 1 + (84 * len * sizeof (char)) / (SCM_BITSPERDIG * 25); |
1985 | else | |
1986 | j = 1 + (len * sizeof (char)) / (SCM_BITSPERDIG); | |
1987 | switch (str[0]) | |
1988 | { /* leading sign */ | |
1989 | case '-': | |
1990 | case '+': | |
1991 | if (++i == (unsigned) len) | |
1992 | return SCM_BOOL_F; /* bad if lone `+' or `-' */ | |
1993 | } | |
1994 | res = scm_mkbig (j, '-' == str[0]); | |
1995 | ds = SCM_BDIGITS (res); | |
1996 | for (k = j; k--;) | |
1997 | ds[k] = 0; | |
1998 | do | |
1999 | { | |
2000 | switch (c = str[i++]) | |
2001 | { | |
2002 | case DIGITS: | |
2003 | c = c - '0'; | |
2004 | goto accumulate; | |
2005 | case 'A': | |
2006 | case 'B': | |
2007 | case 'C': | |
2008 | case 'D': | |
2009 | case 'E': | |
2010 | case 'F': | |
2011 | c = c - 'A' + 10; | |
2012 | goto accumulate; | |
2013 | case 'a': | |
2014 | case 'b': | |
2015 | case 'c': | |
2016 | case 'd': | |
2017 | case 'e': | |
2018 | case 'f': | |
2019 | c = c - 'a' + 10; | |
2020 | accumulate: | |
2021 | if (c >= radix) | |
2022 | return SCM_BOOL_F; /* bad digit for radix */ | |
2023 | k = 0; | |
2024 | t2 = c; | |
2025 | moretodo: | |
2026 | while (k < blen) | |
2027 | { | |
2028 | /* printf ("k = %d, blen = %d, t2 = %ld, ds[k] = %d\n", k, blen, t2, ds[k]); */ | |
2029 | t2 += ds[k] * radix; | |
2030 | ds[k++] = SCM_BIGLO (t2); | |
2031 | t2 = SCM_BIGDN (t2); | |
2032 | } | |
2033 | if (blen > j) | |
2034 | scm_num_overflow ("bignum"); | |
2035 | if (t2) | |
2036 | { | |
2037 | blen++; | |
2038 | goto moretodo; | |
2039 | } | |
2040 | break; | |
2041 | default: | |
2042 | return SCM_BOOL_F; /* not a digit */ | |
2043 | } | |
0f2d19dd | 2044 | } |
f872b822 MD |
2045 | while (i < (unsigned) len); |
2046 | if (blen * SCM_BITSPERDIG / SCM_CHAR_BIT <= sizeof (SCM)) | |
2047 | if (SCM_INUMP (res = scm_big2inum (res, blen))) | |
2048 | return res; | |
2049 | if (j == blen) | |
2050 | return res; | |
2051 | return scm_adjbig (res, blen); | |
0f2d19dd | 2052 | } |
0f2d19dd JB |
2053 | |
2054 | #ifdef SCM_FLOATS | |
1cc91f1b | 2055 | |
0f2d19dd | 2056 | SCM |
f872b822 | 2057 | scm_istr2flo (str, len, radix) |
0f2d19dd JB |
2058 | char *str; |
2059 | long len; | |
2060 | long radix; | |
0f2d19dd JB |
2061 | { |
2062 | register int c, i = 0; | |
2063 | double lead_sgn; | |
2064 | double res = 0.0, tmp = 0.0; | |
2065 | int flg = 0; | |
2066 | int point = 0; | |
2067 | SCM second; | |
2068 | ||
f872b822 MD |
2069 | if (i >= len) |
2070 | return SCM_BOOL_F; /* zero scm_length */ | |
0f2d19dd | 2071 | |
f872b822 MD |
2072 | switch (*str) |
2073 | { /* leading sign */ | |
2074 | case '-': | |
2075 | lead_sgn = -1.0; | |
2076 | i++; | |
2077 | break; | |
2078 | case '+': | |
2079 | lead_sgn = 1.0; | |
2080 | i++; | |
0f2d19dd JB |
2081 | break; |
2082 | default: | |
f872b822 | 2083 | lead_sgn = 0.0; |
0f2d19dd | 2084 | } |
f872b822 MD |
2085 | if (i == len) |
2086 | return SCM_BOOL_F; /* bad if lone `+' or `-' */ | |
2087 | ||
2088 | if (str[i] == 'i' || str[i] == 'I') | |
2089 | { /* handle `+i' and `-i' */ | |
2090 | if (lead_sgn == 0.0) | |
2091 | return SCM_BOOL_F; /* must have leading sign */ | |
2092 | if (++i < len) | |
2093 | return SCM_BOOL_F; /* `i' not last character */ | |
2094 | return scm_makdbl (0.0, lead_sgn); | |
2095 | } | |
2096 | do | |
2097 | { /* check initial digits */ | |
2098 | switch (c = str[i]) | |
2099 | { | |
2100 | case DIGITS: | |
2101 | c = c - '0'; | |
2102 | goto accum1; | |
2103 | case 'D': | |
2104 | case 'E': | |
2105 | case 'F': | |
2106 | if (radix == 10) | |
2107 | goto out1; /* must be exponent */ | |
2108 | case 'A': | |
2109 | case 'B': | |
2110 | case 'C': | |
2111 | c = c - 'A' + 10; | |
2112 | goto accum1; | |
2113 | case 'd': | |
2114 | case 'e': | |
2115 | case 'f': | |
2116 | if (radix == 10) | |
2117 | goto out1; | |
2118 | case 'a': | |
2119 | case 'b': | |
2120 | case 'c': | |
2121 | c = c - 'a' + 10; | |
2122 | accum1: | |
2123 | if (c >= radix) | |
2124 | return SCM_BOOL_F; /* bad digit for radix */ | |
2125 | res = res * radix + c; | |
2126 | flg = 1; /* res is valid */ | |
2127 | break; | |
2128 | default: | |
2129 | goto out1; | |
2130 | } | |
2131 | } | |
2132 | while (++i < len); | |
0f2d19dd JB |
2133 | out1: |
2134 | ||
2135 | /* if true, then we did see a digit above, and res is valid */ | |
f872b822 MD |
2136 | if (i == len) |
2137 | goto done; | |
0f2d19dd JB |
2138 | |
2139 | /* By here, must have seen a digit, | |
2140 | or must have next char be a `.' with radix==10 */ | |
2141 | if (!flg) | |
f872b822 | 2142 | if (!(str[i] == '.' && radix == 10)) |
0f2d19dd JB |
2143 | return SCM_BOOL_F; |
2144 | ||
f872b822 MD |
2145 | while (str[i] == '#') |
2146 | { /* optional sharps */ | |
2147 | res *= radix; | |
2148 | if (++i == len) | |
2149 | goto done; | |
0f2d19dd | 2150 | } |
0f2d19dd | 2151 | |
f872b822 MD |
2152 | if (str[i] == '/') |
2153 | { | |
2154 | while (++i < len) | |
2155 | { | |
2156 | switch (c = str[i]) | |
2157 | { | |
2158 | case DIGITS: | |
2159 | c = c - '0'; | |
2160 | goto accum2; | |
2161 | case 'A': | |
2162 | case 'B': | |
2163 | case 'C': | |
2164 | case 'D': | |
2165 | case 'E': | |
2166 | case 'F': | |
2167 | c = c - 'A' + 10; | |
2168 | goto accum2; | |
2169 | case 'a': | |
2170 | case 'b': | |
2171 | case 'c': | |
2172 | case 'd': | |
2173 | case 'e': | |
2174 | case 'f': | |
2175 | c = c - 'a' + 10; | |
2176 | accum2: | |
2177 | if (c >= radix) | |
2178 | return SCM_BOOL_F; | |
2179 | tmp = tmp * radix + c; | |
2180 | break; | |
2181 | default: | |
2182 | goto out2; | |
2183 | } | |
2184 | } | |
2185 | out2: | |
2186 | if (tmp == 0.0) | |
2187 | return SCM_BOOL_F; /* `slash zero' not allowed */ | |
2188 | if (i < len) | |
2189 | while (str[i] == '#') | |
2190 | { /* optional sharps */ | |
2191 | tmp *= radix; | |
2192 | if (++i == len) | |
2193 | break; | |
2194 | } | |
2195 | res /= tmp; | |
2196 | goto done; | |
0f2d19dd | 2197 | } |
f872b822 MD |
2198 | |
2199 | if (str[i] == '.') | |
2200 | { /* decimal point notation */ | |
2201 | if (radix != 10) | |
2202 | return SCM_BOOL_F; /* must be radix 10 */ | |
2203 | while (++i < len) | |
2204 | { | |
2205 | switch (c = str[i]) | |
2206 | { | |
2207 | case DIGITS: | |
2208 | point--; | |
2209 | res = res * 10.0 + c - '0'; | |
2210 | flg = 1; | |
2211 | break; | |
2212 | default: | |
2213 | goto out3; | |
2214 | } | |
2215 | } | |
2216 | out3: | |
2217 | if (!flg) | |
2218 | return SCM_BOOL_F; /* no digits before or after decimal point */ | |
2219 | if (i == len) | |
2220 | goto adjust; | |
2221 | while (str[i] == '#') | |
2222 | { /* ignore remaining sharps */ | |
2223 | if (++i == len) | |
2224 | goto adjust; | |
2225 | } | |
0f2d19dd | 2226 | } |
0f2d19dd | 2227 | |
f872b822 MD |
2228 | switch (str[i]) |
2229 | { /* exponent */ | |
2230 | case 'd': | |
2231 | case 'D': | |
2232 | case 'e': | |
2233 | case 'E': | |
2234 | case 'f': | |
2235 | case 'F': | |
2236 | case 'l': | |
2237 | case 'L': | |
2238 | case 's': | |
2239 | case 'S': | |
2240 | { | |
2241 | int expsgn = 1, expon = 0; | |
2242 | if (radix != 10) | |
2243 | return SCM_BOOL_F; /* only in radix 10 */ | |
2244 | if (++i == len) | |
2245 | return SCM_BOOL_F; /* bad exponent */ | |
2246 | switch (str[i]) | |
2247 | { | |
2248 | case '-': | |
2249 | expsgn = (-1); | |
2250 | case '+': | |
2251 | if (++i == len) | |
2252 | return SCM_BOOL_F; /* bad exponent */ | |
2253 | } | |
2254 | if (str[i] < '0' || str[i] > '9') | |
2255 | return SCM_BOOL_F; /* bad exponent */ | |
2256 | do | |
2257 | { | |
2258 | switch (c = str[i]) | |
2259 | { | |
2260 | case DIGITS: | |
2261 | expon = expon * 10 + c - '0'; | |
2262 | if (expon > MAXEXP) | |
2263 | return SCM_BOOL_F; /* exponent too large */ | |
2264 | break; | |
2265 | default: | |
2266 | goto out4; | |
2267 | } | |
2268 | } | |
2269 | while (++i < len); | |
2270 | out4: | |
2271 | point += expsgn * expon; | |
0f2d19dd | 2272 | } |
f872b822 | 2273 | } |
0f2d19dd JB |
2274 | |
2275 | adjust: | |
2276 | if (point >= 0) | |
f872b822 MD |
2277 | while (point--) |
2278 | res *= 10.0; | |
0f2d19dd | 2279 | else |
f872b822 MD |
2280 | #ifdef _UNICOS |
2281 | while (point++) | |
2282 | res *= 0.1; | |
2283 | #else | |
2284 | while (point++) | |
2285 | res /= 10.0; | |
2286 | #endif | |
0f2d19dd JB |
2287 | |
2288 | done: | |
2289 | /* at this point, we have a legitimate floating point result */ | |
f872b822 MD |
2290 | if (lead_sgn == -1.0) |
2291 | res = -res; | |
2292 | if (i == len) | |
2293 | return scm_makdbl (res, 0.0); | |
2294 | ||
2295 | if (str[i] == 'i' || str[i] == 'I') | |
2296 | { /* pure imaginary number */ | |
2297 | if (lead_sgn == 0.0) | |
2298 | return SCM_BOOL_F; /* must have leading sign */ | |
2299 | if (++i < len) | |
2300 | return SCM_BOOL_F; /* `i' not last character */ | |
2301 | return scm_makdbl (0.0, res); | |
2302 | } | |
0f2d19dd | 2303 | |
f872b822 MD |
2304 | switch (str[i++]) |
2305 | { | |
2306 | case '-': | |
2307 | lead_sgn = -1.0; | |
2308 | break; | |
2309 | case '+': | |
2310 | lead_sgn = 1.0; | |
2311 | break; | |
2312 | case '@': | |
2313 | { /* polar input for complex number */ | |
2314 | /* get a `real' for scm_angle */ | |
2315 | second = scm_istr2flo (&str[i], (long) (len - i), radix); | |
2316 | if (!(SCM_INEXP (second))) | |
2317 | return SCM_BOOL_F; /* not `real' */ | |
2318 | if (SCM_CPLXP (second)) | |
2319 | return SCM_BOOL_F; /* not `real' */ | |
2320 | tmp = SCM_REALPART (second); | |
2321 | return scm_makdbl (res * cos (tmp), res * sin (tmp)); | |
2322 | } | |
2323 | default: | |
2324 | return SCM_BOOL_F; | |
2325 | } | |
0f2d19dd JB |
2326 | |
2327 | /* at this point, last char must be `i' */ | |
f872b822 MD |
2328 | if (str[len - 1] != 'i' && str[len - 1] != 'I') |
2329 | return SCM_BOOL_F; | |
0f2d19dd | 2330 | /* handles `x+i' and `x-i' */ |
f872b822 MD |
2331 | if (i == (len - 1)) |
2332 | return scm_makdbl (res, lead_sgn); | |
0f2d19dd | 2333 | /* get a `ureal' for complex part */ |
f872b822 MD |
2334 | second = scm_istr2flo (&str[i], (long) ((len - i) - 1), radix); |
2335 | if (!(SCM_INEXP (second))) | |
2336 | return SCM_BOOL_F; /* not `ureal' */ | |
2337 | if (SCM_CPLXP (second)) | |
2338 | return SCM_BOOL_F; /* not `ureal' */ | |
2339 | tmp = SCM_REALPART (second); | |
2340 | if (tmp < 0.0) | |
2341 | return SCM_BOOL_F; /* not `ureal' */ | |
2342 | return scm_makdbl (res, (lead_sgn * tmp)); | |
0f2d19dd | 2343 | } |
f872b822 | 2344 | #endif /* SCM_FLOATS */ |
0f2d19dd JB |
2345 | |
2346 | ||
1cc91f1b | 2347 | |
0f2d19dd | 2348 | SCM |
f872b822 | 2349 | scm_istring2number (str, len, radix) |
0f2d19dd JB |
2350 | char *str; |
2351 | long len; | |
2352 | long radix; | |
0f2d19dd JB |
2353 | { |
2354 | int i = 0; | |
2355 | char ex = 0; | |
2356 | char ex_p = 0, rx_p = 0; /* Only allow 1 exactness and 1 radix prefix */ | |
2357 | SCM res; | |
f872b822 MD |
2358 | if (len == 1) |
2359 | if (*str == '+' || *str == '-') /* Catches lone `+' and `-' for speed */ | |
0f2d19dd JB |
2360 | return SCM_BOOL_F; |
2361 | ||
f872b822 MD |
2362 | while ((len - i) >= 2 && str[i] == '#' && ++i) |
2363 | switch (str[i++]) | |
2364 | { | |
2365 | case 'b': | |
2366 | case 'B': | |
2367 | if (rx_p++) | |
2368 | return SCM_BOOL_F; | |
2369 | radix = 2; | |
2370 | break; | |
2371 | case 'o': | |
2372 | case 'O': | |
2373 | if (rx_p++) | |
2374 | return SCM_BOOL_F; | |
2375 | radix = 8; | |
2376 | break; | |
2377 | case 'd': | |
2378 | case 'D': | |
2379 | if (rx_p++) | |
2380 | return SCM_BOOL_F; | |
2381 | radix = 10; | |
2382 | break; | |
2383 | case 'x': | |
2384 | case 'X': | |
2385 | if (rx_p++) | |
2386 | return SCM_BOOL_F; | |
2387 | radix = 16; | |
2388 | break; | |
2389 | case 'i': | |
2390 | case 'I': | |
2391 | if (ex_p++) | |
2392 | return SCM_BOOL_F; | |
2393 | ex = 2; | |
2394 | break; | |
2395 | case 'e': | |
2396 | case 'E': | |
2397 | if (ex_p++) | |
2398 | return SCM_BOOL_F; | |
2399 | ex = 1; | |
2400 | break; | |
2401 | default: | |
2402 | return SCM_BOOL_F; | |
2403 | } | |
2404 | ||
2405 | switch (ex) | |
2406 | { | |
2407 | case 1: | |
2408 | return scm_istr2int (&str[i], len - i, radix); | |
2409 | case 0: | |
2410 | res = scm_istr2int (&str[i], len - i, radix); | |
2411 | if (SCM_NFALSEP (res)) | |
2412 | return res; | |
0f2d19dd | 2413 | #ifdef SCM_FLOATS |
f872b822 MD |
2414 | case 2: |
2415 | return scm_istr2flo (&str[i], len - i, radix); | |
0f2d19dd | 2416 | #endif |
f872b822 | 2417 | } |
0f2d19dd JB |
2418 | return SCM_BOOL_F; |
2419 | } | |
2420 | ||
2421 | ||
f872b822 | 2422 | SCM_PROC (s_string_to_number, "string->number", 1, 1, 0, scm_string_to_number); |
1cc91f1b | 2423 | |
0f2d19dd | 2424 | SCM |
f872b822 | 2425 | scm_string_to_number (str, radix) |
0f2d19dd JB |
2426 | SCM str; |
2427 | SCM radix; | |
0f2d19dd JB |
2428 | { |
2429 | SCM answer; | |
f872b822 MD |
2430 | if (SCM_UNBNDP (radix)) |
2431 | radix = SCM_MAKINUM (10L); | |
2432 | else | |
2433 | SCM_ASSERT (SCM_INUMP (radix), radix, SCM_ARG2, s_string_to_number); | |
2434 | SCM_ASSERT (SCM_NIMP (str) && SCM_ROSTRINGP (str), | |
2435 | str, SCM_ARG1, s_string_to_number); | |
2436 | answer = scm_istring2number (SCM_ROCHARS (str), | |
2437 | SCM_ROLENGTH (str), | |
2438 | SCM_INUM (radix)); | |
0f2d19dd JB |
2439 | return scm_return_first (answer, str); |
2440 | } | |
2441 | /*** END strs->nums ***/ | |
2442 | ||
2443 | #ifdef SCM_FLOATS | |
1cc91f1b | 2444 | |
0f2d19dd JB |
2445 | SCM |
2446 | scm_makdbl (x, y) | |
2447 | double x; | |
2448 | double y; | |
0f2d19dd JB |
2449 | { |
2450 | SCM z; | |
f872b822 MD |
2451 | if ((y == 0.0) && (x == 0.0)) |
2452 | return scm_flo0; | |
2453 | SCM_NEWCELL (z); | |
0f2d19dd | 2454 | SCM_DEFER_INTS; |
f872b822 MD |
2455 | if (y == 0.0) |
2456 | { | |
2457 | #ifdef SCM_SINGLES | |
2458 | float fx = x; | |
2459 | #ifndef SCM_SINGLESONLY | |
2460 | if ((-FLTMAX < x) && (x < FLTMAX) && (fx == x)) | |
2461 | #endif | |
2462 | { | |
2463 | SCM_SETCAR (z, scm_tc_flo); | |
2464 | SCM_FLO (z) = x; | |
2465 | SCM_ALLOW_INTS; | |
2466 | return z; | |
2467 | } | |
2468 | #endif /* def SCM_SINGLES */ | |
2469 | SCM_SETCDR (z, (SCM) scm_must_malloc (1L * sizeof (double), "real")); | |
2470 | SCM_SETCAR (z, scm_tc_dblr); | |
2471 | } | |
2472 | else | |
2473 | { | |
2474 | SCM_SETCDR (z, (SCM) scm_must_malloc (2L * sizeof (double), "complex")); | |
2475 | SCM_SETCAR (z, scm_tc_dblc); | |
2476 | SCM_IMAG (z) = y; | |
2477 | } | |
2478 | SCM_REAL (z) = x; | |
0f2d19dd JB |
2479 | SCM_ALLOW_INTS; |
2480 | return z; | |
2481 | } | |
2482 | #endif | |
2483 | ||
2484 | ||
1cc91f1b | 2485 | |
0f2d19dd | 2486 | SCM |
f872b822 | 2487 | scm_bigequal (x, y) |
0f2d19dd JB |
2488 | SCM x; |
2489 | SCM y; | |
0f2d19dd JB |
2490 | { |
2491 | #ifdef SCM_BIGDIG | |
f872b822 MD |
2492 | if (0 == scm_bigcomp (x, y)) |
2493 | return SCM_BOOL_T; | |
0f2d19dd JB |
2494 | #endif |
2495 | return SCM_BOOL_F; | |
2496 | } | |
2497 | ||
2498 | ||
1cc91f1b | 2499 | |
0f2d19dd | 2500 | SCM |
f872b822 | 2501 | scm_floequal (x, y) |
0f2d19dd JB |
2502 | SCM x; |
2503 | SCM y; | |
0f2d19dd JB |
2504 | { |
2505 | #ifdef SCM_FLOATS | |
f872b822 MD |
2506 | if (SCM_REALPART (x) != SCM_REALPART (y)) |
2507 | return SCM_BOOL_F; | |
2508 | if (!(SCM_CPLXP (x) && (SCM_IMAG (x) != SCM_IMAG (y)))) | |
2509 | return SCM_BOOL_T; | |
0f2d19dd JB |
2510 | #endif |
2511 | return SCM_BOOL_F; | |
2512 | } | |
2513 | ||
2514 | ||
2515 | ||
2516 | ||
f872b822 MD |
2517 | SCM_PROC (s_number_p, "number?", 1, 0, 0, scm_number_p); |
2518 | SCM_PROC (s_complex_p, "complex?", 1, 0, 0, scm_number_p); | |
1cc91f1b | 2519 | |
0f2d19dd | 2520 | SCM |
f872b822 | 2521 | scm_number_p (x) |
0f2d19dd | 2522 | SCM x; |
0f2d19dd | 2523 | { |
f872b822 MD |
2524 | if (SCM_INUMP (x)) |
2525 | return SCM_BOOL_T; | |
0f2d19dd | 2526 | #ifdef SCM_FLOATS |
f872b822 MD |
2527 | if (SCM_NIMP (x) && SCM_NUMP (x)) |
2528 | return SCM_BOOL_T; | |
0f2d19dd | 2529 | #else |
f872b822 MD |
2530 | #ifdef SCM_BIGDIG |
2531 | if (SCM_NIMP (x) && SCM_NUMP (x)) | |
2532 | return SCM_BOOL_T; | |
2533 | #endif | |
0f2d19dd JB |
2534 | #endif |
2535 | return SCM_BOOL_F; | |
2536 | } | |
2537 | ||
2538 | ||
2539 | ||
2540 | #ifdef SCM_FLOATS | |
f872b822 MD |
2541 | SCM_PROC (s_real_p, "real?", 1, 0, 0, scm_real_p); |
2542 | SCM_PROC (s_rational_p, "rational?", 1, 0, 0, scm_real_p); | |
1cc91f1b | 2543 | |
0f2d19dd | 2544 | SCM |
f872b822 | 2545 | scm_real_p (x) |
0f2d19dd | 2546 | SCM x; |
0f2d19dd | 2547 | { |
f872b822 | 2548 | if (SCM_INUMP (x)) |
0f2d19dd | 2549 | return SCM_BOOL_T; |
f872b822 | 2550 | if (SCM_IMP (x)) |
0f2d19dd | 2551 | return SCM_BOOL_F; |
f872b822 | 2552 | if (SCM_REALP (x)) |
0f2d19dd | 2553 | return SCM_BOOL_T; |
f872b822 MD |
2554 | #ifdef SCM_BIGDIG |
2555 | if (SCM_BIGP (x)) | |
0f2d19dd | 2556 | return SCM_BOOL_T; |
f872b822 | 2557 | #endif |
0f2d19dd JB |
2558 | return SCM_BOOL_F; |
2559 | } | |
2560 | ||
2561 | ||
2562 | ||
f872b822 | 2563 | SCM_PROC (s_int_p, "integer?", 1, 0, 0, scm_integer_p); |
1cc91f1b | 2564 | |
0f2d19dd | 2565 | SCM |
f872b822 | 2566 | scm_integer_p (x) |
0f2d19dd | 2567 | SCM x; |
0f2d19dd JB |
2568 | { |
2569 | double r; | |
f872b822 MD |
2570 | if (SCM_INUMP (x)) |
2571 | return SCM_BOOL_T; | |
2572 | if (SCM_IMP (x)) | |
2573 | return SCM_BOOL_F; | |
2574 | #ifdef SCM_BIGDIG | |
2575 | if (SCM_BIGP (x)) | |
2576 | return SCM_BOOL_T; | |
2577 | #endif | |
2578 | if (!SCM_INEXP (x)) | |
2579 | return SCM_BOOL_F; | |
2580 | if (SCM_CPLXP (x)) | |
2581 | return SCM_BOOL_F; | |
2582 | r = SCM_REALPART (x); | |
2583 | if (r == floor (r)) | |
2584 | return SCM_BOOL_T; | |
0f2d19dd JB |
2585 | return SCM_BOOL_F; |
2586 | } | |
2587 | ||
2588 | ||
2589 | ||
f872b822 | 2590 | #endif /* SCM_FLOATS */ |
0f2d19dd | 2591 | |
f872b822 | 2592 | SCM_PROC (s_inexact_p, "inexact?", 1, 0, 0, scm_inexact_p); |
1cc91f1b | 2593 | |
0f2d19dd | 2594 | SCM |
f872b822 | 2595 | scm_inexact_p (x) |
0f2d19dd | 2596 | SCM x; |
0f2d19dd JB |
2597 | { |
2598 | #ifdef SCM_FLOATS | |
f872b822 MD |
2599 | if (SCM_NIMP (x) && SCM_INEXP (x)) |
2600 | return SCM_BOOL_T; | |
0f2d19dd JB |
2601 | #endif |
2602 | return SCM_BOOL_F; | |
2603 | } | |
2604 | ||
2605 | ||
2606 | ||
2607 | ||
f693191c | 2608 | SCM_PROC1 (s_eq_p, "=", scm_tc7_rpsubr, scm_num_eq_p); |
1cc91f1b | 2609 | |
0f2d19dd JB |
2610 | SCM |
2611 | scm_num_eq_p (x, y) | |
2612 | SCM x; | |
2613 | SCM y; | |
0f2d19dd JB |
2614 | { |
2615 | #ifdef SCM_FLOATS | |
2616 | SCM t; | |
f872b822 MD |
2617 | if (SCM_NINUMP (x)) |
2618 | { | |
2619 | #ifdef SCM_BIGDIG | |
2620 | #ifndef SCM_RECKLESS | |
2621 | if (!(SCM_NIMP (x))) | |
2622 | { | |
2623 | badx: | |
2624 | scm_wta (x, (char *) SCM_ARG1, s_eq_p); | |
2625 | } | |
2626 | #endif | |
2627 | if (SCM_BIGP (x)) | |
2628 | { | |
2629 | if (SCM_INUMP (y)) | |
2630 | return SCM_BOOL_F; | |
2631 | SCM_ASRTGO (SCM_NIMP (y), bady); | |
2632 | if (SCM_BIGP (y)) | |
2633 | return (0 == scm_bigcomp (x, y)) ? SCM_BOOL_T : SCM_BOOL_F; | |
2634 | SCM_ASRTGO (SCM_INEXP (y), bady); | |
2635 | bigreal: | |
2636 | return ((SCM_REALP (y) && (scm_big2dbl (x) == SCM_REALPART (y))) | |
2637 | ? SCM_BOOL_T | |
2638 | : SCM_BOOL_F); | |
2639 | } | |
2640 | SCM_ASRTGO (SCM_INEXP (x), badx); | |
0f2d19dd | 2641 | #else |
f872b822 MD |
2642 | SCM_ASSERT (SCM_NIMP (x) && SCM_INEXP (x), x, SCM_ARG1, s_eq_p); |
2643 | #endif | |
2644 | if (SCM_INUMP (y)) | |
2645 | { | |
2646 | t = x; | |
2647 | x = y; | |
2648 | y = t; | |
2649 | goto realint; | |
2650 | } | |
2651 | #ifdef SCM_BIGDIG | |
2652 | SCM_ASRTGO (SCM_NIMP (y), bady); | |
2653 | if (SCM_BIGP (y)) | |
2654 | { | |
2655 | t = x; | |
2656 | x = y; | |
2657 | y = t; | |
2658 | goto bigreal; | |
2659 | } | |
2660 | SCM_ASRTGO (SCM_INEXP (y), bady); | |
2661 | #else | |
2662 | SCM_ASRTGO (SCM_NIMP (y) && SCM_INEXP (y), bady); | |
2663 | #endif | |
2664 | if (SCM_REALPART (x) != SCM_REALPART (y)) | |
2665 | return SCM_BOOL_F; | |
2666 | if (SCM_CPLXP (x)) | |
2667 | return ((SCM_CPLXP (y) && (SCM_IMAG (x) == SCM_IMAG (y))) | |
2668 | ? SCM_BOOL_T | |
2669 | : SCM_BOOL_F); | |
2670 | return SCM_CPLXP (y) ? SCM_BOOL_F : SCM_BOOL_T; | |
2671 | } | |
2672 | if (SCM_NINUMP (y)) | |
2673 | { | |
2674 | #ifdef SCM_BIGDIG | |
2675 | SCM_ASRTGO (SCM_NIMP (y), bady); | |
2676 | if (SCM_BIGP (y)) | |
2677 | return SCM_BOOL_F; | |
2678 | #ifndef SCM_RECKLESS | |
2679 | if (!(SCM_INEXP (y))) | |
2680 | { | |
2681 | bady: | |
2682 | scm_wta (y, (char *) SCM_ARG2, s_eq_p); | |
2683 | } | |
2684 | #endif | |
2685 | #else | |
2686 | #ifndef SCM_RECKLESS | |
2687 | if (!(SCM_NIMP (y) && SCM_INEXP (y))) | |
2688 | { | |
2689 | bady: | |
2690 | scm_wta (y, (char *) SCM_ARG2, s_eq_p); | |
2691 | } | |
2692 | #endif | |
2693 | #endif | |
2694 | realint: | |
2695 | return ((SCM_REALP (y) && (((double) SCM_INUM (x)) == SCM_REALPART (y))) | |
2696 | ? SCM_BOOL_T | |
2697 | : SCM_BOOL_F); | |
2698 | } | |
2699 | #else | |
2700 | #ifdef SCM_BIGDIG | |
2701 | if (SCM_NINUMP (x)) | |
2702 | { | |
2703 | SCM_ASSERT (SCM_NIMP (x) && SCM_BIGP (x), x, SCM_ARG1, s_eq_p); | |
2704 | if (SCM_INUMP (y)) | |
2705 | return SCM_BOOL_F; | |
2706 | SCM_ASRTGO (SCM_NIMP (y) && SCM_BIGP (y), bady); | |
2707 | return (0 == scm_bigcomp (x, y)) ? SCM_BOOL_T : SCM_BOOL_F; | |
2708 | } | |
2709 | if (SCM_NINUMP (y)) | |
2710 | { | |
2711 | #ifndef SCM_RECKLESS | |
2712 | if (!(SCM_NIMP (y) && SCM_BIGP (y))) | |
2713 | { | |
2714 | bady: | |
2715 | scm_wta (y, (char *) SCM_ARG2, s_eq_p); | |
2716 | } | |
2717 | #endif | |
2718 | return SCM_BOOL_F; | |
2719 | } | |
2720 | #else | |
2721 | SCM_ASSERT (SCM_INUMP (x), x, SCM_ARG1, s_eq_p); | |
2722 | SCM_ASSERT (SCM_INUMP (y), y, SCM_ARG2, s_eq_p); | |
0f2d19dd | 2723 | #endif |
f872b822 MD |
2724 | #endif |
2725 | return ((long) x == (long) y) ? SCM_BOOL_T : SCM_BOOL_F; | |
0f2d19dd JB |
2726 | } |
2727 | ||
2728 | ||
2729 | ||
f693191c | 2730 | SCM_PROC1 (s_less_p, "<", scm_tc7_rpsubr, scm_less_p); |
1cc91f1b | 2731 | |
0f2d19dd | 2732 | SCM |
f872b822 | 2733 | scm_less_p (x, y) |
0f2d19dd JB |
2734 | SCM x; |
2735 | SCM y; | |
0f2d19dd JB |
2736 | { |
2737 | #ifdef SCM_FLOATS | |
f872b822 MD |
2738 | if (SCM_NINUMP (x)) |
2739 | { | |
2740 | #ifdef SCM_BIGDIG | |
2741 | #ifndef SCM_RECKLESS | |
2742 | if (!(SCM_NIMP (x))) | |
2743 | { | |
2744 | badx: | |
2745 | scm_wta (x, (char *) SCM_ARG1, s_less_p); | |
2746 | } | |
2747 | #endif | |
2748 | if (SCM_BIGP (x)) | |
2749 | { | |
2750 | if (SCM_INUMP (y)) | |
2751 | return SCM_BIGSIGN (x) ? SCM_BOOL_T : SCM_BOOL_F; | |
2752 | SCM_ASRTGO (SCM_NIMP (y), bady); | |
2753 | if (SCM_BIGP (y)) | |
2754 | return (1 == scm_bigcomp (x, y)) ? SCM_BOOL_T : SCM_BOOL_F; | |
2755 | SCM_ASRTGO (SCM_REALP (y), bady); | |
2756 | return ((scm_big2dbl (x) < SCM_REALPART (y)) | |
2757 | ? SCM_BOOL_T | |
2758 | : SCM_BOOL_F); | |
2759 | } | |
2760 | SCM_ASRTGO (SCM_REALP (x), badx); | |
0f2d19dd | 2761 | #else |
f872b822 MD |
2762 | SCM_ASSERT (SCM_NIMP (x) && SCM_REALP (x), x, SCM_ARG1, s_less_p); |
2763 | #endif | |
2764 | if (SCM_INUMP (y)) | |
2765 | return ((SCM_REALPART (x) < ((double) SCM_INUM (y))) | |
2766 | ? SCM_BOOL_T | |
2767 | : SCM_BOOL_F); | |
2768 | #ifdef SCM_BIGDIG | |
2769 | SCM_ASRTGO (SCM_NIMP (y), bady); | |
2770 | if (SCM_BIGP (y)) | |
2771 | return (SCM_REALPART (x) < scm_big2dbl (y)) ? SCM_BOOL_T : SCM_BOOL_F; | |
2772 | SCM_ASRTGO (SCM_REALP (y), bady); | |
2773 | #else | |
2774 | SCM_ASRTGO (SCM_NIMP (y) && SCM_REALP (y), bady); | |
2775 | #endif | |
2776 | return (SCM_REALPART (x) < SCM_REALPART (y)) ? SCM_BOOL_T : SCM_BOOL_F; | |
2777 | } | |
2778 | if (SCM_NINUMP (y)) | |
2779 | { | |
2780 | #ifdef SCM_BIGDIG | |
2781 | SCM_ASRTGO (SCM_NIMP (y), bady); | |
2782 | if (SCM_BIGP (y)) | |
2783 | return SCM_BIGSIGN (y) ? SCM_BOOL_F : SCM_BOOL_T; | |
2784 | #ifndef SCM_RECKLESS | |
2785 | if (!(SCM_REALP (y))) | |
2786 | { | |
2787 | bady: | |
2788 | scm_wta (y, (char *) SCM_ARG2, s_less_p); | |
2789 | } | |
2790 | #endif | |
2791 | #else | |
2792 | #ifndef SCM_RECKLESS | |
2793 | if (!(SCM_NIMP (y) && SCM_REALP (y))) | |
2794 | { | |
2795 | bady: | |
2796 | scm_wta (y, (char *) SCM_ARG2, s_less_p); | |
2797 | } | |
2798 | #endif | |
2799 | #endif | |
2800 | return ((((double) SCM_INUM (x)) < SCM_REALPART (y)) | |
2801 | ? SCM_BOOL_T | |
2802 | : SCM_BOOL_F); | |
2803 | } | |
2804 | #else | |
2805 | #ifdef SCM_BIGDIG | |
2806 | if (SCM_NINUMP (x)) | |
2807 | { | |
2808 | SCM_ASSERT (SCM_NIMP (x) && SCM_BIGP (x), x, SCM_ARG1, s_less_p); | |
2809 | if (SCM_INUMP (y)) | |
2810 | return SCM_BIGSIGN (x) ? SCM_BOOL_T : SCM_BOOL_F; | |
2811 | SCM_ASRTGO (SCM_NIMP (y) && SCM_BIGP (y), bady); | |
2812 | return (1 == scm_bigcomp (x, y)) ? SCM_BOOL_T : SCM_BOOL_F; | |
2813 | } | |
2814 | if (SCM_NINUMP (y)) | |
2815 | { | |
2816 | #ifndef SCM_RECKLESS | |
2817 | if (!(SCM_NIMP (y) && SCM_BIGP (y))) | |
2818 | { | |
2819 | bady: | |
2820 | scm_wta (y, (char *) SCM_ARG2, s_less_p); | |
2821 | } | |
2822 | #endif | |
2823 | return SCM_BIGSIGN (y) ? SCM_BOOL_F : SCM_BOOL_T; | |
2824 | } | |
2825 | #else | |
2826 | SCM_ASSERT (SCM_INUMP (x), x, SCM_ARG1, s_less_p); | |
2827 | SCM_ASSERT (SCM_INUMP (y), y, SCM_ARG2, s_less_p); | |
0f2d19dd | 2828 | #endif |
f872b822 MD |
2829 | #endif |
2830 | return ((long) x < (long) y) ? SCM_BOOL_T : SCM_BOOL_F; | |
0f2d19dd JB |
2831 | } |
2832 | ||
2833 | ||
f693191c | 2834 | SCM_PROC1 (s_gr_p, ">", scm_tc7_rpsubr, scm_gr_p); |
1cc91f1b | 2835 | |
0f2d19dd | 2836 | SCM |
f872b822 | 2837 | scm_gr_p (x, y) |
0f2d19dd JB |
2838 | SCM x; |
2839 | SCM y; | |
0f2d19dd | 2840 | { |
f872b822 | 2841 | return scm_less_p (y, x); |
0f2d19dd JB |
2842 | } |
2843 | ||
2844 | ||
2845 | ||
f693191c | 2846 | SCM_PROC1 (s_leq_p, "<=", scm_tc7_rpsubr, scm_leq_p); |
1cc91f1b | 2847 | |
0f2d19dd | 2848 | SCM |
f872b822 | 2849 | scm_leq_p (x, y) |
0f2d19dd JB |
2850 | SCM x; |
2851 | SCM y; | |
0f2d19dd | 2852 | { |
f872b822 | 2853 | return SCM_BOOL_NOT (scm_less_p (y, x)); |
0f2d19dd JB |
2854 | } |
2855 | ||
2856 | ||
2857 | ||
f693191c | 2858 | SCM_PROC1 (s_geq_p, ">=", scm_tc7_rpsubr, scm_geq_p); |
1cc91f1b | 2859 | |
0f2d19dd | 2860 | SCM |
f872b822 | 2861 | scm_geq_p (x, y) |
0f2d19dd JB |
2862 | SCM x; |
2863 | SCM y; | |
0f2d19dd | 2864 | { |
f872b822 | 2865 | return SCM_BOOL_NOT (scm_less_p (x, y)); |
0f2d19dd JB |
2866 | } |
2867 | ||
2868 | ||
2869 | ||
f872b822 | 2870 | SCM_PROC (s_zero_p, "zero?", 1, 0, 0, scm_zero_p); |
1cc91f1b | 2871 | |
0f2d19dd | 2872 | SCM |
f872b822 | 2873 | scm_zero_p (z) |
0f2d19dd | 2874 | SCM z; |
0f2d19dd JB |
2875 | { |
2876 | #ifdef SCM_FLOATS | |
f872b822 MD |
2877 | if (SCM_NINUMP (z)) |
2878 | { | |
2879 | #ifdef SCM_BIGDIG | |
2880 | SCM_ASRTGO (SCM_NIMP (z), badz); | |
2881 | if (SCM_BIGP (z)) | |
2882 | return SCM_BOOL_F; | |
2883 | #ifndef SCM_RECKLESS | |
2884 | if (!(SCM_INEXP (z))) | |
2885 | { | |
2886 | badz: | |
2887 | scm_wta (z, (char *) SCM_ARG1, s_zero_p); | |
2888 | } | |
2889 | #endif | |
0f2d19dd | 2890 | #else |
f872b822 MD |
2891 | SCM_ASSERT (SCM_NIMP (z) && SCM_INEXP (z), z, SCM_ARG1, s_zero_p); |
2892 | #endif | |
2893 | return (z == scm_flo0) ? SCM_BOOL_T : SCM_BOOL_F; | |
2894 | } | |
2895 | #else | |
2896 | #ifdef SCM_BIGDIG | |
2897 | if (SCM_NINUMP (z)) | |
2898 | { | |
2899 | SCM_ASSERT (SCM_NIMP (z) && SCM_BIGP (z), z, SCM_ARG1, s_zero_p); | |
2900 | return SCM_BOOL_F; | |
2901 | } | |
2902 | #else | |
2903 | SCM_ASSERT (SCM_INUMP (z), z, SCM_ARG1, s_zero_p); | |
0f2d19dd | 2904 | #endif |
f872b822 MD |
2905 | #endif |
2906 | return (z == SCM_INUM0) ? SCM_BOOL_T : SCM_BOOL_F; | |
0f2d19dd JB |
2907 | } |
2908 | ||
2909 | ||
2910 | ||
f872b822 | 2911 | SCM_PROC (s_positive_p, "positive?", 1, 0, 0, scm_positive_p); |
1cc91f1b | 2912 | |
0f2d19dd | 2913 | SCM |
f872b822 | 2914 | scm_positive_p (x) |
0f2d19dd | 2915 | SCM x; |
0f2d19dd JB |
2916 | { |
2917 | #ifdef SCM_FLOATS | |
f872b822 MD |
2918 | if (SCM_NINUMP (x)) |
2919 | { | |
2920 | #ifdef SCM_BIGDIG | |
2921 | SCM_ASRTGO (SCM_NIMP (x), badx); | |
2922 | if (SCM_BIGP (x)) | |
2923 | return SCM_TYP16 (x) == scm_tc16_bigpos ? SCM_BOOL_T : SCM_BOOL_F; | |
2924 | #ifndef SCM_RECKLESS | |
2925 | if (!(SCM_REALP (x))) | |
2926 | { | |
2927 | badx: | |
2928 | scm_wta (x, (char *) SCM_ARG1, s_positive_p); | |
2929 | } | |
2930 | #endif | |
0f2d19dd | 2931 | #else |
f872b822 MD |
2932 | SCM_ASSERT (SCM_NIMP (x) && SCM_REALP (x), x, SCM_ARG1, s_positive_p); |
2933 | #endif | |
2934 | return (SCM_REALPART (x) > 0.0) ? SCM_BOOL_T : SCM_BOOL_F; | |
2935 | } | |
2936 | #else | |
2937 | #ifdef SCM_BIGDIG | |
2938 | if (SCM_NINUMP (x)) | |
2939 | { | |
2940 | SCM_ASSERT (SCM_NIMP (x) && SCM_BIGP (x), x, SCM_ARG1, s_positive_p); | |
2941 | return SCM_TYP16 (x) == scm_tc16_bigpos ? SCM_BOOL_T : SCM_BOOL_F; | |
2942 | } | |
2943 | #else | |
2944 | SCM_ASSERT (SCM_INUMP (x), x, SCM_ARG1, s_positive_p); | |
2945 | #endif | |
0f2d19dd JB |
2946 | #endif |
2947 | return (x > SCM_INUM0) ? SCM_BOOL_T : SCM_BOOL_F; | |
2948 | } | |
2949 | ||
2950 | ||
2951 | ||
f872b822 | 2952 | SCM_PROC (s_negative_p, "negative?", 1, 0, 0, scm_negative_p); |
1cc91f1b | 2953 | |
0f2d19dd | 2954 | SCM |
f872b822 | 2955 | scm_negative_p (x) |
0f2d19dd | 2956 | SCM x; |
0f2d19dd JB |
2957 | { |
2958 | #ifdef SCM_FLOATS | |
f872b822 MD |
2959 | if (SCM_NINUMP (x)) |
2960 | { | |
2961 | #ifdef SCM_BIGDIG | |
2962 | SCM_ASRTGO (SCM_NIMP (x), badx); | |
2963 | if (SCM_BIGP (x)) | |
2964 | return SCM_TYP16 (x) == scm_tc16_bigpos ? SCM_BOOL_F : SCM_BOOL_T; | |
2965 | #ifndef SCM_RECKLESS | |
2966 | if (!(SCM_REALP (x))) | |
2967 | { | |
2968 | badx: | |
2969 | scm_wta (x, (char *) SCM_ARG1, s_negative_p); | |
2970 | } | |
2971 | #endif | |
0f2d19dd | 2972 | #else |
f872b822 | 2973 | SCM_ASSERT (SCM_NIMP (x) && SCM_REALP (x), x, SCM_ARG1, s_negative_p); |
0f2d19dd | 2974 | #endif |
f872b822 MD |
2975 | return (SCM_REALPART (x) < 0.0) ? SCM_BOOL_T : SCM_BOOL_F; |
2976 | } | |
2977 | #else | |
2978 | #ifdef SCM_BIGDIG | |
2979 | if (SCM_NINUMP (x)) | |
2980 | { | |
2981 | SCM_ASSERT (SCM_NIMP (x) && SCM_BIGP (x), x, SCM_ARG1, s_negative_p); | |
2982 | return (SCM_TYP16 (x) == scm_tc16_bigneg) ? SCM_BOOL_T : SCM_BOOL_F; | |
2983 | } | |
2984 | #else | |
2985 | SCM_ASSERT (SCM_INUMP (x), x, SCM_ARG1, s_negative_p); | |
2986 | #endif | |
2987 | #endif | |
2988 | return (x < SCM_INUM0) ? SCM_BOOL_T : SCM_BOOL_F; | |
0f2d19dd JB |
2989 | } |
2990 | ||
2991 | ||
2992 | SCM_PROC1 (s_max, "max", scm_tc7_asubr, scm_max); | |
1cc91f1b | 2993 | |
0f2d19dd | 2994 | SCM |
f872b822 | 2995 | scm_max (x, y) |
0f2d19dd JB |
2996 | SCM x; |
2997 | SCM y; | |
0f2d19dd JB |
2998 | { |
2999 | #ifdef SCM_FLOATS | |
3000 | double z; | |
3001 | #endif | |
f872b822 MD |
3002 | if (SCM_UNBNDP (y)) |
3003 | { | |
cf7c17e9 | 3004 | #ifndef SCM_RECKLESS |
f872b822 MD |
3005 | if (!(SCM_NUMBERP (x))) |
3006 | { | |
3007 | badx: | |
3008 | scm_wta (x, (char *) SCM_ARG1, s_max); | |
3009 | } | |
0f2d19dd | 3010 | #endif |
f872b822 MD |
3011 | return x; |
3012 | } | |
0f2d19dd | 3013 | #ifdef SCM_FLOATS |
f872b822 MD |
3014 | if (SCM_NINUMP (x)) |
3015 | { | |
3016 | #ifdef SCM_BIGDIG | |
3017 | SCM_ASRTGO (SCM_NIMP (x), badx); | |
3018 | if (SCM_BIGP (x)) | |
3019 | { | |
3020 | if (SCM_INUMP (y)) | |
3021 | return SCM_BIGSIGN (x) ? y : x; | |
3022 | SCM_ASRTGO (SCM_NIMP (y), bady); | |
3023 | if (SCM_BIGP (y)) | |
3024 | return (1 == scm_bigcomp (x, y)) ? y : x; | |
3025 | SCM_ASRTGO (SCM_REALP (y), bady); | |
3026 | z = scm_big2dbl (x); | |
3027 | return (z < SCM_REALPART (y)) ? y : scm_makdbl (z, 0.0); | |
3028 | } | |
3029 | SCM_ASRTGO (SCM_REALP (x), badx); | |
0f2d19dd | 3030 | #else |
f872b822 MD |
3031 | SCM_ASSERT (SCM_NIMP (x) && SCM_REALP (x), x, SCM_ARG1, s_max); |
3032 | #endif | |
3033 | if (SCM_INUMP (y)) | |
3034 | return ((SCM_REALPART (x) < (z = SCM_INUM (y))) | |
3035 | ? scm_makdbl (z, 0.0) | |
3036 | : x); | |
3037 | #ifdef SCM_BIGDIG | |
3038 | SCM_ASRTGO (SCM_NIMP (y), bady); | |
3039 | if (SCM_BIGP (y)) | |
3040 | return ((SCM_REALPART (x) < (z = scm_big2dbl (y))) | |
3041 | ? scm_makdbl (z, 0.0) | |
3042 | : x); | |
3043 | SCM_ASRTGO (SCM_REALP (y), bady); | |
3044 | #else | |
3045 | SCM_ASRTGO (SCM_NIMP (y) && SCM_REALP (y), bady); | |
3046 | #endif | |
3047 | return (SCM_REALPART (x) < SCM_REALPART (y)) ? y : x; | |
3048 | } | |
3049 | if (SCM_NINUMP (y)) | |
3050 | { | |
3051 | #ifdef SCM_BIGDIG | |
3052 | SCM_ASRTGO (SCM_NIMP (y), bady); | |
3053 | if (SCM_BIGP (y)) | |
3054 | return SCM_BIGSIGN (y) ? x : y; | |
3055 | #ifndef SCM_RECKLESS | |
3056 | if (!(SCM_REALP (y))) | |
3057 | { | |
3058 | bady: | |
3059 | scm_wta (y, (char *) SCM_ARG2, s_max); | |
3060 | } | |
0f2d19dd | 3061 | #endif |
f872b822 MD |
3062 | #else |
3063 | #ifndef SCM_RECKLESS | |
3064 | if (!(SCM_NIMP (y) && SCM_REALP (y))) | |
3065 | { | |
3066 | bady: | |
3067 | scm_wta (y, (char *) SCM_ARG2, s_max); | |
3068 | } | |
3069 | #endif | |
3070 | #endif | |
3071 | return (((z = SCM_INUM (x)) < SCM_REALPART (y)) | |
3072 | ? y | |
3073 | : scm_makdbl (z, 0.0)); | |
3074 | } | |
3075 | #else | |
3076 | #ifdef SCM_BIGDIG | |
3077 | if (SCM_NINUMP (x)) | |
3078 | { | |
3079 | SCM_ASSERT (SCM_NIMP (x) && SCM_BIGP (x), x, SCM_ARG1, s_max); | |
3080 | if (SCM_INUMP (y)) | |
3081 | return SCM_BIGSIGN (x) ? y : x; | |
3082 | SCM_ASRTGO (SCM_NIMP (y) && SCM_BIGP (y), bady); | |
3083 | return (1 == scm_bigcomp (x, y)) ? y : x; | |
3084 | } | |
3085 | if (SCM_NINUMP (y)) | |
3086 | { | |
3087 | #ifndef SCM_RECKLESS | |
3088 | if (!(SCM_NIMP (y) && SCM_BIGP (y))) | |
3089 | { | |
3090 | bady: | |
3091 | scm_wta (y, (char *) SCM_ARG2, s_max); | |
3092 | } | |
3093 | #endif | |
3094 | return SCM_BIGSIGN (y) ? x : y; | |
3095 | } | |
3096 | #else | |
3097 | SCM_ASSERT (SCM_INUMP (x), x, SCM_ARG1, s_max); | |
3098 | SCM_ASSERT (SCM_INUMP (y), y, SCM_ARG2, s_max); | |
3099 | #endif | |
3100 | #endif | |
3101 | return ((long) x < (long) y) ? y : x; | |
0f2d19dd JB |
3102 | } |
3103 | ||
3104 | ||
3105 | ||
3106 | ||
3107 | SCM_PROC1 (s_min, "min", scm_tc7_asubr, scm_min); | |
1cc91f1b | 3108 | |
0f2d19dd | 3109 | SCM |
f872b822 | 3110 | scm_min (x, y) |
0f2d19dd JB |
3111 | SCM x; |
3112 | SCM y; | |
0f2d19dd JB |
3113 | { |
3114 | #ifdef SCM_FLOATS | |
3115 | double z; | |
3116 | #endif | |
f872b822 MD |
3117 | if (SCM_UNBNDP (y)) |
3118 | { | |
cf7c17e9 | 3119 | #ifndef SCM_RECKLESS |
f872b822 MD |
3120 | if (!(SCM_NUMBERP (x))) |
3121 | { | |
3122 | badx: | |
3123 | scm_wta (x, (char *) SCM_ARG1, s_min); | |
3124 | } | |
0f2d19dd | 3125 | #endif |
f872b822 MD |
3126 | return x; |
3127 | } | |
0f2d19dd | 3128 | #ifdef SCM_FLOATS |
f872b822 MD |
3129 | if (SCM_NINUMP (x)) |
3130 | { | |
3131 | #ifdef SCM_BIGDIG | |
3132 | SCM_ASRTGO (SCM_NIMP (x), badx); | |
3133 | if (SCM_BIGP (x)) | |
3134 | { | |
3135 | if (SCM_INUMP (y)) | |
3136 | return SCM_BIGSIGN (x) ? x : y; | |
3137 | SCM_ASRTGO (SCM_NIMP (y), bady); | |
3138 | if (SCM_BIGP (y)) | |
3139 | return (-1 == scm_bigcomp (x, y)) ? y : x; | |
3140 | SCM_ASRTGO (SCM_REALP (y), bady); | |
3141 | z = scm_big2dbl (x); | |
3142 | return (z > SCM_REALPART (y)) ? y : scm_makdbl (z, 0.0); | |
3143 | } | |
3144 | SCM_ASRTGO (SCM_REALP (x), badx); | |
0f2d19dd | 3145 | #else |
f872b822 MD |
3146 | SCM_ASSERT (SCM_NIMP (x) && SCM_REALP (x), x, SCM_ARG1, s_min); |
3147 | #endif | |
3148 | if (SCM_INUMP (y)) | |
3149 | return ((SCM_REALPART (x) > (z = SCM_INUM (y))) | |
3150 | ? scm_makdbl (z, 0.0) | |
3151 | : x); | |
3152 | #ifdef SCM_BIGDIG | |
3153 | SCM_ASRTGO (SCM_NIMP (y), bady); | |
3154 | if (SCM_BIGP (y)) | |
3155 | return ((SCM_REALPART (x) > (z = scm_big2dbl (y))) | |
3156 | ? scm_makdbl (z, 0.0) | |
3157 | : x); | |
3158 | SCM_ASRTGO (SCM_REALP (y), bady); | |
3159 | #else | |
3160 | SCM_ASRTGO (SCM_NIMP (y) && SCM_REALP (y), bady); | |
3161 | #endif | |
3162 | return (SCM_REALPART (x) > SCM_REALPART (y)) ? y : x; | |
3163 | } | |
3164 | if (SCM_NINUMP (y)) | |
3165 | { | |
3166 | #ifdef SCM_BIGDIG | |
3167 | SCM_ASRTGO (SCM_NIMP (y), bady); | |
3168 | if (SCM_BIGP (y)) | |
3169 | return SCM_BIGSIGN (y) ? y : x; | |
3170 | #ifndef SCM_RECKLESS | |
3171 | if (!(SCM_REALP (y))) | |
3172 | { | |
3173 | bady: | |
3174 | scm_wta (y, (char *) SCM_ARG2, s_min); | |
3175 | } | |
3176 | #endif | |
3177 | #else | |
3178 | #ifndef SCM_RECKLESS | |
3179 | if (!(SCM_NIMP (y) && SCM_REALP (y))) | |
3180 | { | |
3181 | bady: | |
3182 | scm_wta (y, (char *) SCM_ARG2, s_min); | |
3183 | } | |
3184 | #endif | |
0f2d19dd | 3185 | #endif |
f872b822 MD |
3186 | return (((z = SCM_INUM (x)) > SCM_REALPART (y)) |
3187 | ? y | |
3188 | : scm_makdbl (z, 0.0)); | |
3189 | } | |
3190 | #else | |
3191 | #ifdef SCM_BIGDIG | |
3192 | if (SCM_NINUMP (x)) | |
3193 | { | |
3194 | SCM_ASSERT (SCM_NIMP (x) && SCM_BIGP (x), x, SCM_ARG1, s_min); | |
3195 | if (SCM_INUMP (y)) | |
3196 | return SCM_BIGSIGN (x) ? x : y; | |
3197 | SCM_ASRTGO (SCM_NIMP (y) && SCM_BIGP (y), bady); | |
3198 | return (-1 == scm_bigcomp (x, y)) ? y : x; | |
3199 | } | |
3200 | if (SCM_NINUMP (y)) | |
3201 | { | |
3202 | #ifndef SCM_RECKLESS | |
3203 | if (!(SCM_NIMP (y) && SCM_BIGP (y))) | |
3204 | { | |
3205 | bady: | |
3206 | scm_wta (y, (char *) SCM_ARG2, s_min); | |
3207 | } | |
3208 | #endif | |
3209 | return SCM_BIGSIGN (y) ? y : x; | |
3210 | } | |
3211 | #else | |
3212 | SCM_ASSERT (SCM_INUMP (x), x, SCM_ARG1, s_min); | |
3213 | SCM_ASSERT (SCM_INUMP (y), y, SCM_ARG2, s_min); | |
3214 | #endif | |
3215 | #endif | |
3216 | return ((long) x > (long) y) ? y : x; | |
0f2d19dd JB |
3217 | } |
3218 | ||
3219 | ||
3220 | ||
3221 | ||
3222 | SCM_PROC1 (s_sum, "+", scm_tc7_asubr, scm_sum); | |
1cc91f1b | 3223 | |
0f2d19dd | 3224 | SCM |
f872b822 | 3225 | scm_sum (x, y) |
0f2d19dd JB |
3226 | SCM x; |
3227 | SCM y; | |
0f2d19dd | 3228 | { |
f872b822 MD |
3229 | if (SCM_UNBNDP (y)) |
3230 | { | |
3231 | if (SCM_UNBNDP (x)) | |
3232 | return SCM_INUM0; | |
cf7c17e9 | 3233 | #ifndef SCM_RECKLESS |
f872b822 MD |
3234 | if (!(SCM_NUMBERP (x))) |
3235 | { | |
3236 | badx: | |
3237 | scm_wta (x, (char *) SCM_ARG1, s_sum); | |
3238 | } | |
0f2d19dd | 3239 | #endif |
f872b822 MD |
3240 | return x; |
3241 | } | |
0f2d19dd | 3242 | #ifdef SCM_FLOATS |
f872b822 MD |
3243 | if (SCM_NINUMP (x)) |
3244 | { | |
3245 | SCM t; | |
3246 | #ifdef SCM_BIGDIG | |
3247 | SCM_ASRTGO (SCM_NIMP (x), badx); | |
3248 | if (SCM_BIGP (x)) | |
3249 | { | |
3250 | if (SCM_INUMP (y)) | |
3251 | { | |
3252 | t = x; | |
3253 | x = y; | |
3254 | y = t; | |
3255 | goto intbig; | |
3256 | } | |
3257 | SCM_ASRTGO (SCM_NIMP (y), bady); | |
3258 | if (SCM_BIGP (y)) | |
3259 | { | |
3260 | if (SCM_NUMDIGS (x) > SCM_NUMDIGS (y)) | |
3261 | { | |
3262 | t = x; | |
3263 | x = y; | |
3264 | y = t; | |
3265 | } | |
3266 | return scm_addbig (SCM_BDIGITS (x), SCM_NUMDIGS (x), | |
3267 | SCM_BIGSIGN (x), | |
3268 | y, 0); | |
3269 | } | |
3270 | SCM_ASRTGO (SCM_INEXP (y), bady); | |
3271 | bigreal: | |
3272 | return scm_makdbl (scm_big2dbl (x) + SCM_REALPART (y), | |
3273 | SCM_CPLXP (y) ? SCM_IMAG (y) : 0.0); | |
3274 | } | |
3275 | SCM_ASRTGO (SCM_INEXP (x), badx); | |
3276 | #else | |
3277 | SCM_ASRTGO (SCM_NIMP (x) && SCM_INEXP (x), badx); | |
3278 | #endif | |
3279 | if (SCM_INUMP (y)) | |
3280 | { | |
3281 | t = x; | |
3282 | x = y; | |
3283 | y = t; | |
3284 | goto intreal; | |
3285 | } | |
3286 | #ifdef SCM_BIGDIG | |
3287 | SCM_ASRTGO (SCM_NIMP (y), bady); | |
3288 | if (SCM_BIGP (y)) | |
3289 | { | |
3290 | t = x; | |
3291 | x = y; | |
3292 | y = t; | |
3293 | goto bigreal; | |
3294 | } | |
3295 | #ifndef SCM_RECKLESS | |
3296 | else if (!(SCM_INEXP (y))) | |
3297 | { | |
3298 | bady: | |
3299 | scm_wta (y, (char *) SCM_ARG2, s_sum); | |
3300 | } | |
3301 | #endif | |
3302 | #else | |
3303 | #ifndef SCM_RECKLESS | |
3304 | if (!(SCM_NIMP (y) && SCM_INEXP (y))) | |
3305 | { | |
3306 | bady: | |
3307 | scm_wta (y, (char *) SCM_ARG2, s_sum); | |
3308 | } | |
3309 | #endif | |
3310 | #endif | |
3311 | { | |
3312 | double i = 0.0; | |
3313 | if (SCM_CPLXP (x)) | |
3314 | i = SCM_IMAG (x); | |
3315 | if (SCM_CPLXP (y)) | |
3316 | i += SCM_IMAG (y); | |
3317 | return scm_makdbl (SCM_REALPART (x) + SCM_REALPART (y), i); | |
0f2d19dd | 3318 | } |
f872b822 MD |
3319 | } |
3320 | if (SCM_NINUMP (y)) | |
3321 | { | |
3322 | #ifdef SCM_BIGDIG | |
3323 | SCM_ASRTGO (SCM_NIMP (y), bady); | |
3324 | if (SCM_BIGP (y)) | |
3325 | { | |
3326 | intbig: | |
3327 | { | |
3328 | #ifndef SCM_DIGSTOOBIG | |
3329 | long z = scm_pseudolong (SCM_INUM (x)); | |
3330 | return scm_addbig ((SCM_BIGDIG *) & z, | |
3331 | SCM_DIGSPERLONG, | |
3332 | (x < 0) ? 0x0100 : 0, | |
3333 | y, 0); | |
0f2d19dd | 3334 | #else |
f872b822 MD |
3335 | SCM_BIGDIG zdigs[SCM_DIGSPERLONG]; |
3336 | scm_longdigs (SCM_INUM (x), zdigs); | |
3337 | return scm_addbig (zdigs, SCM_DIGSPERLONG, (x < 0) ? 0x0100 : 0, | |
3338 | y, 0); | |
3339 | #endif | |
3340 | } | |
3341 | } | |
3342 | SCM_ASRTGO (SCM_INEXP (y), bady); | |
3343 | #else | |
3344 | SCM_ASRTGO (SCM_NIMP (y) && SCM_INEXP (y), bady); | |
3345 | #endif | |
3346 | intreal: | |
3347 | return scm_makdbl (SCM_INUM (x) + SCM_REALPART (y), | |
3348 | SCM_CPLXP (y) ? SCM_IMAG (y) : 0.0); | |
3349 | } | |
3350 | #else | |
3351 | #ifdef SCM_BIGDIG | |
3352 | if (SCM_NINUMP (x)) | |
3353 | { | |
3354 | SCM t; | |
3355 | SCM_ASRTGO (SCM_NIMP (x) && SCM_BIGP (x), badx); | |
3356 | if (SCM_INUMP (y)) | |
3357 | { | |
3358 | t = x; | |
3359 | x = y; | |
3360 | y = t; | |
3361 | goto intbig; | |
3362 | } | |
3363 | SCM_ASRTGO (SCM_NIMP (y) && SCM_BIGP (y), bady); | |
3364 | if (SCM_NUMDIGS (x) > SCM_NUMDIGS (y)) | |
3365 | { | |
3366 | t = x; | |
3367 | x = y; | |
3368 | y = t; | |
3369 | } | |
3370 | return scm_addbig (SCM_BDIGITS (x), SCM_NUMDIGS (x), SCM_BIGSIGN (x), | |
3371 | y, 0); | |
3372 | } | |
3373 | if (SCM_NINUMP (y)) | |
3374 | { | |
3375 | #ifndef SCM_RECKLESS | |
3376 | if (!(SCM_NIMP (y) && SCM_BIGP (y))) | |
3377 | { | |
3378 | bady: | |
3379 | scm_wta (y, (char *) SCM_ARG2, s_sum); | |
3380 | } | |
0f2d19dd | 3381 | #endif |
f872b822 MD |
3382 | intbig: |
3383 | { | |
3384 | #ifndef SCM_DIGSTOOBIG | |
3385 | long z = scm_pseudolong (SCM_INUM (x)); | |
3386 | return scm_addbig (&z, SCM_DIGSPERLONG, (x < 0) ? 0x0100 : 0, y, 0); | |
3387 | #else | |
3388 | SCM_BIGDIG zdigs[SCM_DIGSPERLONG]; | |
3389 | scm_longdigs (SCM_INUM (x), zdigs); | |
3390 | return scm_addbig (zdigs, SCM_DIGSPERLONG, (x < 0) ? 0x0100 : 0, y, 0); | |
3391 | #endif | |
3392 | } | |
3393 | } | |
3394 | #else | |
3395 | SCM_ASRTGO (SCM_INUMP (x), badx); | |
3396 | SCM_ASSERT (SCM_INUMP (y), y, SCM_ARG2, s_sum); | |
3397 | #endif | |
3398 | #endif | |
3399 | x = SCM_INUM (x) + SCM_INUM (y); | |
3400 | if (SCM_FIXABLE (x)) | |
3401 | return SCM_MAKINUM (x); | |
0f2d19dd | 3402 | #ifdef SCM_BIGDIG |
f872b822 MD |
3403 | return scm_long2big (x); |
3404 | #else | |
3405 | #ifdef SCM_FLOATS | |
3406 | return scm_makdbl ((double) x, 0.0); | |
0f2d19dd | 3407 | #else |
52859adf | 3408 | scm_num_overflow (s_sum); |
0f2d19dd | 3409 | return SCM_UNSPECIFIED; |
f872b822 | 3410 | #endif |
0f2d19dd JB |
3411 | #endif |
3412 | } | |
3413 | ||
3414 | ||
3415 | ||
3416 | ||
3417 | SCM_PROC1 (s_difference, "-", scm_tc7_asubr, scm_difference); | |
1cc91f1b | 3418 | |
0f2d19dd | 3419 | SCM |
f872b822 | 3420 | scm_difference (x, y) |
0f2d19dd JB |
3421 | SCM x; |
3422 | SCM y; | |
0f2d19dd JB |
3423 | { |
3424 | #ifdef SCM_FLOATS | |
f872b822 MD |
3425 | if (SCM_NINUMP (x)) |
3426 | { | |
3427 | #ifndef SCM_RECKLESS | |
3428 | if (!(SCM_NIMP (x))) | |
3429 | { | |
3430 | badx: | |
3431 | scm_wta (x, (char *) SCM_ARG1, s_difference); | |
3432 | } | |
3433 | #endif | |
3434 | if (SCM_UNBNDP (y)) | |
3435 | { | |
3436 | #ifdef SCM_BIGDIG | |
3437 | if (SCM_BIGP (x)) | |
3438 | { | |
3439 | x = scm_copybig (x, !SCM_BIGSIGN (x)); | |
3440 | return (SCM_NUMDIGS (x) * SCM_BITSPERDIG / SCM_CHAR_BIT | |
3441 | <= sizeof (SCM) | |
3442 | ? scm_big2inum (x, SCM_NUMDIGS (x)) | |
3443 | : x); | |
3444 | } | |
3445 | #endif | |
3446 | SCM_ASRTGO (SCM_INEXP (x), badx); | |
3447 | return scm_makdbl (- SCM_REALPART (x), | |
3448 | SCM_CPLXP (x) ? -SCM_IMAG (x) : 0.0); | |
3449 | } | |
3450 | if (SCM_INUMP (y)) | |
3451 | return scm_sum (x, SCM_MAKINUM (- SCM_INUM (y))); | |
3452 | #ifdef SCM_BIGDIG | |
3453 | SCM_ASRTGO (SCM_NIMP (y), bady); | |
3454 | if (SCM_BIGP (x)) | |
3455 | { | |
3456 | if (SCM_BIGP (y)) | |
3457 | return ((SCM_NUMDIGS (x) < SCM_NUMDIGS (y)) | |
3458 | ? scm_addbig (SCM_BDIGITS (x), SCM_NUMDIGS (x), | |
3459 | SCM_BIGSIGN (x), | |
3460 | y, 0x0100) | |
3461 | : scm_addbig (SCM_BDIGITS (y), SCM_NUMDIGS (y), | |
3462 | SCM_BIGSIGN (y) ^ 0x0100, | |
3463 | x, 0)); | |
3464 | SCM_ASRTGO (SCM_INEXP (y), bady); | |
3465 | return scm_makdbl (scm_big2dbl (x) - SCM_REALPART (y), | |
3466 | SCM_CPLXP (y) ? -SCM_IMAG (y) : 0.0); | |
3467 | } | |
3468 | SCM_ASRTGO (SCM_INEXP (x), badx); | |
3469 | if (SCM_BIGP (y)) | |
3470 | return scm_makdbl (SCM_REALPART (x) - scm_big2dbl (y), | |
3471 | SCM_CPLXP (x) ? SCM_IMAG (x) : 0.0); | |
3472 | SCM_ASRTGO (SCM_INEXP (y), bady); | |
3473 | #else | |
3474 | SCM_ASRTGO (SCM_INEXP (x), badx); | |
3475 | SCM_ASRTGO (SCM_NIMP (y) && SCM_INEXP (y), bady); | |
3476 | #endif | |
3477 | if (SCM_CPLXP (x)) | |
3478 | { | |
3479 | if (SCM_CPLXP (y)) | |
3480 | return scm_makdbl (SCM_REAL (x) - SCM_REAL (y), | |
3481 | SCM_IMAG (x) - SCM_IMAG (y)); | |
3482 | else | |
3483 | return scm_makdbl (SCM_REAL (x) - SCM_REALPART (y), SCM_IMAG (x)); | |
3484 | } | |
3485 | return scm_makdbl (SCM_REALPART (x) - SCM_REALPART (y), | |
3486 | SCM_CPLXP (y) ? - SCM_IMAG (y) : 0.0); | |
3487 | } | |
3488 | if (SCM_UNBNDP (y)) | |
3489 | { | |
3490 | x = -SCM_INUM (x); | |
3491 | goto checkx; | |
3492 | } | |
3493 | if (SCM_NINUMP (y)) | |
3494 | { | |
3495 | #ifdef SCM_BIGDIG | |
3496 | SCM_ASRTGO (SCM_NIMP (y), bady); | |
3497 | if (SCM_BIGP (y)) | |
3498 | { | |
3499 | #ifndef SCM_DIGSTOOBIG | |
3500 | long z = scm_pseudolong (SCM_INUM (x)); | |
3501 | return scm_addbig ((SCM_BIGDIG *) & z, SCM_DIGSPERLONG, | |
3502 | (x < 0) ? 0x0100 : 0, | |
3503 | y, 0x0100); | |
3504 | #else | |
3505 | SCM_BIGDIG zdigs[SCM_DIGSPERLONG]; | |
3506 | scm_longdigs (SCM_INUM (x), zdigs); | |
3507 | return scm_addbig (zdigs, SCM_DIGSPERLONG, (x < 0) ? 0x0100 : 0, | |
3508 | y, 0x0100); | |
3509 | #endif | |
3510 | } | |
3511 | #ifndef SCM_RECKLESS | |
3512 | if (!(SCM_INEXP (y))) | |
3513 | { | |
3514 | bady: | |
3515 | scm_wta (y, (char *) SCM_ARG2, s_difference); | |
3516 | } | |
3517 | #endif | |
3518 | #else | |
3519 | #ifndef SCM_RECKLESS | |
3520 | if (!(SCM_NIMP (y) && SCM_INEXP (y))) | |
3521 | { | |
3522 | bady: | |
3523 | scm_wta (y, (char *) SCM_ARG2, s_difference); | |
3524 | } | |
3525 | #endif | |
3526 | #endif | |
3527 | return scm_makdbl (SCM_INUM (x) - SCM_REALPART (y), | |
3528 | SCM_CPLXP (y) ? -SCM_IMAG (y) : 0.0); | |
3529 | } | |
3530 | #else | |
3531 | #ifdef SCM_BIGDIG | |
3532 | if (SCM_NINUMP (x)) | |
3533 | { | |
3534 | SCM_ASSERT (SCM_NIMP (x) && SCM_BIGP (x), x, SCM_ARG1, s_difference); | |
3535 | if (SCM_UNBNDP (y)) | |
3536 | { | |
3537 | x = scm_copybig (x, !SCM_BIGSIGN (x)); | |
3538 | return (SCM_NUMDIGS (x) * SCM_BITSPERDIG / SCM_CHAR_BIT | |
3539 | <= sizeof (SCM) | |
3540 | ? scm_big2inum (x, SCM_NUMDIGS (x)) | |
3541 | : x); | |
3542 | } | |
3543 | if (SCM_INUMP (y)) | |
3544 | { | |
3545 | #ifndef SCM_DIGSTOOBIG | |
3546 | long z = scm_pseudolong (SCM_INUM (y)); | |
3547 | return scm_addbig (&z, SCM_DIGSPERLONG, (y < 0) ? 0 : 0x0100, x, 0); | |
3548 | #else | |
3549 | SCM_BIGDIG zdigs[SCM_DIGSPERLONG]; | |
3550 | scm_longdigs (SCM_INUM (x), zdigs); | |
3551 | return scm_addbig (zdigs, SCM_DIGSPERLONG, (y < 0) ? 0 : 0x0100, | |
3552 | x, 0); | |
3553 | #endif | |
3554 | } | |
3555 | SCM_ASRTGO (SCM_NIMP (y) && SCM_BIGP (y), bady); | |
3556 | return (SCM_NUMDIGS (x) < SCM_NUMDIGS (y)) ? | |
3557 | scm_addbig (SCM_BDIGITS (x), SCM_NUMDIGS (x), SCM_BIGSIGN (x), | |
3558 | y, 0x0100) : | |
3559 | scm_addbig (SCM_BDIGITS (y), SCM_NUMDIGS (y), SCM_BIGSIGN (y) ^ 0x0100, | |
3560 | x, 0); | |
3561 | } | |
3562 | if (SCM_UNBNDP (y)) | |
3563 | { | |
3564 | x = -SCM_INUM (x); | |
3565 | goto checkx; | |
3566 | } | |
3567 | if (SCM_NINUMP (y)) | |
3568 | { | |
3569 | #ifndef SCM_RECKLESS | |
3570 | if (!(SCM_NIMP (y) && SCM_BIGP (y))) | |
3571 | { | |
3572 | bady: | |
3573 | scm_wta (y, (char *) SCM_ARG2, s_difference); | |
3574 | } | |
3575 | #endif | |
cda139a7 | 3576 | { |
f872b822 MD |
3577 | #ifndef SCM_DIGSTOOBIG |
3578 | long z = scm_pseudolong (SCM_INUM (x)); | |
3579 | return scm_addbig (&z, SCM_DIGSPERLONG, (x < 0) ? 0x0100 : 0, | |
3580 | y, 0x0100); | |
3581 | #else | |
3582 | SCM_BIGDIG zdigs[SCM_DIGSPERLONG]; | |
3583 | scm_longdigs (SCM_INUM (x), zdigs); | |
3584 | return scm_addbig (zdigs, SCM_DIGSPERLONG, (x < 0) ? 0x0100 : 0, | |
3585 | y, 0x0100); | |
3586 | #endif | |
cda139a7 | 3587 | } |
f872b822 | 3588 | } |
0f2d19dd | 3589 | #else |
f872b822 MD |
3590 | SCM_ASSERT (SCM_INUMP (x), x, SCM_ARG1, s_difference); |
3591 | if (SCM_UNBNDP (y)) | |
3592 | { | |
3593 | x = -SCM_INUM (x); | |
3594 | goto checkx; | |
0f2d19dd | 3595 | } |
f872b822 | 3596 | SCM_ASSERT (SCM_INUMP (y), y, SCM_ARG2, s_difference); |
0f2d19dd | 3597 | #endif |
f872b822 MD |
3598 | #endif |
3599 | x = SCM_INUM (x) - SCM_INUM (y); | |
0f2d19dd | 3600 | checkx: |
f872b822 MD |
3601 | if (SCM_FIXABLE (x)) |
3602 | return SCM_MAKINUM (x); | |
0f2d19dd | 3603 | #ifdef SCM_BIGDIG |
f872b822 MD |
3604 | return scm_long2big (x); |
3605 | #else | |
3606 | #ifdef SCM_FLOATS | |
3607 | return scm_makdbl ((double) x, 0.0); | |
0f2d19dd | 3608 | #else |
52859adf | 3609 | scm_num_overflow (s_difference); |
0f2d19dd | 3610 | return SCM_UNSPECIFIED; |
f872b822 | 3611 | #endif |
0f2d19dd JB |
3612 | #endif |
3613 | } | |
3614 | ||
3615 | ||
3616 | ||
3617 | ||
3618 | SCM_PROC1 (s_product, "*", scm_tc7_asubr, scm_product); | |
1cc91f1b | 3619 | |
0f2d19dd | 3620 | SCM |
f872b822 | 3621 | scm_product (x, y) |
0f2d19dd JB |
3622 | SCM x; |
3623 | SCM y; | |
0f2d19dd | 3624 | { |
f872b822 MD |
3625 | if (SCM_UNBNDP (y)) |
3626 | { | |
3627 | if (SCM_UNBNDP (x)) | |
3628 | return SCM_MAKINUM (1L); | |
cf7c17e9 | 3629 | #ifndef SCM_RECKLESS |
f872b822 MD |
3630 | if (!(SCM_NUMBERP (x))) |
3631 | { | |
3632 | badx: | |
3633 | scm_wta (x, (char *) SCM_ARG1, s_product); | |
3634 | } | |
0f2d19dd | 3635 | #endif |
f872b822 MD |
3636 | return x; |
3637 | } | |
0f2d19dd | 3638 | #ifdef SCM_FLOATS |
f872b822 MD |
3639 | if (SCM_NINUMP (x)) |
3640 | { | |
3641 | SCM t; | |
3642 | #ifdef SCM_BIGDIG | |
3643 | SCM_ASRTGO (SCM_NIMP (x), badx); | |
3644 | if (SCM_BIGP (x)) | |
3645 | { | |
3646 | if (SCM_INUMP (y)) | |
3647 | { | |
3648 | t = x; | |
3649 | x = y; | |
3650 | y = t; | |
3651 | goto intbig; | |
3652 | } | |
3653 | SCM_ASRTGO (SCM_NIMP (y), bady); | |
3654 | if (SCM_BIGP (y)) | |
3655 | return scm_mulbig (SCM_BDIGITS (x), SCM_NUMDIGS (x), | |
3656 | SCM_BDIGITS (y), SCM_NUMDIGS (y), | |
3657 | SCM_BIGSIGN (x) ^ SCM_BIGSIGN (y)); | |
3658 | SCM_ASRTGO (SCM_INEXP (y), bady); | |
3659 | bigreal: | |
3660 | { | |
3661 | double bg = scm_big2dbl (x); | |
3662 | return scm_makdbl (bg * SCM_REALPART (y), | |
3663 | SCM_CPLXP (y) ? bg * SCM_IMAG (y) : 0.0); | |
3664 | } | |
3665 | } | |
3666 | SCM_ASRTGO (SCM_INEXP (x), badx); | |
3667 | #else | |
3668 | SCM_ASRTGO (SCM_NIMP (x) && SCM_INEXP (x), badx); | |
3669 | #endif | |
3670 | if (SCM_INUMP (y)) | |
3671 | { | |
3672 | t = x; | |
3673 | x = y; | |
3674 | y = t; | |
3675 | goto intreal; | |
3676 | } | |
3677 | #ifdef SCM_BIGDIG | |
3678 | SCM_ASRTGO (SCM_NIMP (y), bady); | |
3679 | if (SCM_BIGP (y)) | |
3680 | { | |
3681 | t = x; | |
3682 | x = y; | |
3683 | y = t; | |
3684 | goto bigreal; | |
3685 | } | |
3686 | #ifndef SCM_RECKLESS | |
3687 | else if (!(SCM_INEXP (y))) | |
3688 | { | |
3689 | bady: | |
3690 | scm_wta (y, (char *) SCM_ARG2, s_product); | |
3691 | } | |
3692 | #endif | |
3693 | #else | |
3694 | #ifndef SCM_RECKLESS | |
3695 | if (!(SCM_NIMP (y) && SCM_INEXP (y))) | |
3696 | { | |
3697 | bady: | |
3698 | scm_wta (y, (char *) SCM_ARG2, s_product); | |
3699 | } | |
3700 | #endif | |
3701 | #endif | |
3702 | if (SCM_CPLXP (x)) | |
3703 | { | |
3704 | if (SCM_CPLXP (y)) | |
3705 | return scm_makdbl (SCM_REAL (x) * SCM_REAL (y) | |
3706 | - SCM_IMAG (x) * SCM_IMAG (y), | |
3707 | SCM_REAL (x) * SCM_IMAG (y) | |
3708 | + SCM_IMAG (x) * SCM_REAL (y)); | |
3709 | else | |
3710 | return scm_makdbl (SCM_REAL (x) * SCM_REALPART (y), | |
3711 | SCM_IMAG (x) * SCM_REALPART (y)); | |
3712 | } | |
3713 | return scm_makdbl (SCM_REALPART (x) * SCM_REALPART (y), | |
3714 | SCM_CPLXP (y) | |
3715 | ? SCM_REALPART (x) * SCM_IMAG (y) | |
3716 | : 0.0); | |
3717 | } | |
3718 | if (SCM_NINUMP (y)) | |
3719 | { | |
3720 | #ifdef SCM_BIGDIG | |
3721 | SCM_ASRTGO (SCM_NIMP (y), bady); | |
3722 | if (SCM_BIGP (y)) | |
3723 | { | |
3724 | intbig: | |
3725 | if (SCM_INUM0 == x) | |
3726 | return x; | |
3727 | if (SCM_MAKINUM (1L) == x) | |
3728 | return y; | |
3729 | { | |
3730 | #ifndef SCM_DIGSTOOBIG | |
3731 | long z = scm_pseudolong (SCM_INUM (x)); | |
3732 | return scm_mulbig ((SCM_BIGDIG *) & z, SCM_DIGSPERLONG, | |
3733 | SCM_BDIGITS (y), SCM_NUMDIGS (y), | |
3734 | SCM_BIGSIGN (y) ? (x > 0) : (x < 0)); | |
3735 | #else | |
3736 | SCM_BIGDIG zdigs[SCM_DIGSPERLONG]; | |
3737 | scm_longdigs (SCM_INUM (x), zdigs); | |
3738 | return scm_mulbig (zdigs, SCM_DIGSPERLONG, | |
3739 | SCM_BDIGITS (y), SCM_NUMDIGS (y), | |
3740 | SCM_BIGSIGN (y) ? (x > 0) : (x < 0)); | |
3741 | #endif | |
3742 | } | |
3743 | } | |
3744 | SCM_ASRTGO (SCM_INEXP (y), bady); | |
3745 | #else | |
3746 | SCM_ASRTGO (SCM_NIMP (y) && SCM_INEXP (y), bady); | |
3747 | #endif | |
3748 | intreal: | |
3749 | return scm_makdbl (SCM_INUM (x) * SCM_REALPART (y), | |
3750 | SCM_CPLXP (y) ? SCM_INUM (x) * SCM_IMAG (y) : 0.0); | |
3751 | } | |
3752 | #else | |
3753 | #ifdef SCM_BIGDIG | |
3754 | if (SCM_NINUMP (x)) | |
3755 | { | |
3756 | SCM_ASRTGO (SCM_NIMP (x) && SCM_BIGP (x), badx); | |
3757 | if (SCM_INUMP (y)) | |
3758 | { | |
3759 | SCM t = x; | |
3760 | x = y; | |
3761 | y = t; | |
3762 | goto intbig; | |
3763 | } | |
3764 | SCM_ASRTGO (SCM_NIMP (y) && SCM_BIGP (y), bady); | |
3765 | return scm_mulbig (SCM_BDIGITS (x), SCM_NUMDIGS (x), | |
3766 | SCM_BDIGITS (y), SCM_NUMDIGS (y), | |
3767 | SCM_BIGSIGN (x) ^ SCM_BIGSIGN (y)); | |
3768 | } | |
3769 | if (SCM_NINUMP (y)) | |
3770 | { | |
3771 | #ifndef SCM_RECKLESS | |
3772 | if (!(SCM_NIMP (y) && SCM_BIGP (y))) | |
3773 | { | |
3774 | bady: | |
3775 | scm_wta (y, (char *) SCM_ARG2, s_product); | |
3776 | } | |
3777 | #endif | |
3778 | intbig: | |
3779 | if (SCM_INUM0 == x) | |
3780 | return x; | |
3781 | if (SCM_MAKINUM (1L) == x) | |
3782 | return y; | |
0f2d19dd | 3783 | { |
f872b822 MD |
3784 | #ifndef SCM_DIGSTOOBIG |
3785 | long z = scm_pseudolong (SCM_INUM (x)); | |
3786 | return scm_mulbig (&z, SCM_DIGSPERLONG, | |
3787 | SCM_BDIGITS (y), SCM_NUMDIGS (y), | |
3788 | SCM_BIGSIGN (y) ? (x > 0) : (x < 0)); | |
3789 | #else | |
0f2d19dd | 3790 | SCM_BIGDIG zdigs[SCM_DIGSPERLONG]; |
f872b822 MD |
3791 | scm_longdigs (SCM_INUM (x), zdigs); |
3792 | return scm_mulbig (zdigs, SCM_DIGSPERLONG, | |
3793 | SCM_BDIGITS (y), SCM_NUMDIGS (y), | |
3794 | SCM_BIGSIGN (y) ? (x > 0) : (x < 0)); | |
3795 | #endif | |
0f2d19dd JB |
3796 | } |
3797 | } | |
0f2d19dd | 3798 | #else |
f872b822 MD |
3799 | SCM_ASRTGO (SCM_INUMP (x), badx); |
3800 | SCM_ASSERT (SCM_INUMP (y), y, SCM_ARG2, s_product); | |
3801 | #endif | |
0f2d19dd JB |
3802 | #endif |
3803 | { | |
3804 | long i, j, k; | |
f872b822 MD |
3805 | i = SCM_INUM (x); |
3806 | if (0 == i) | |
3807 | return x; | |
3808 | j = SCM_INUM (y); | |
0f2d19dd | 3809 | k = i * j; |
f872b822 MD |
3810 | y = SCM_MAKINUM (k); |
3811 | if (k != SCM_INUM (y) || k / i != j) | |
3812 | #ifdef SCM_BIGDIG | |
3813 | { | |
3814 | int sgn = (i < 0) ^ (j < 0); | |
3815 | #ifndef SCM_DIGSTOOBIG | |
3816 | i = scm_pseudolong (i); | |
3817 | j = scm_pseudolong (j); | |
3818 | return scm_mulbig ((SCM_BIGDIG *) & i, SCM_DIGSPERLONG, | |
3819 | (SCM_BIGDIG *) & j, SCM_DIGSPERLONG, sgn); | |
3820 | #else /* SCM_DIGSTOOBIG */ | |
0f2d19dd JB |
3821 | SCM_BIGDIG idigs[SCM_DIGSPERLONG]; |
3822 | SCM_BIGDIG jdigs[SCM_DIGSPERLONG]; | |
f872b822 MD |
3823 | scm_longdigs (i, idigs); |
3824 | scm_longdigs (j, jdigs); | |
3825 | return scm_mulbig (idigs, SCM_DIGSPERLONG, | |
3826 | jdigs, SCM_DIGSPERLONG, | |
3827 | sgn); | |
3828 | #endif | |
0f2d19dd JB |
3829 | } |
3830 | #else | |
f872b822 MD |
3831 | #ifdef SCM_FLOATS |
3832 | return scm_makdbl (((double) i) * ((double) j), 0.0); | |
3833 | #else | |
52859adf | 3834 | scm_num_overflow (s_product); |
f872b822 | 3835 | #endif |
0f2d19dd JB |
3836 | #endif |
3837 | return y; | |
3838 | } | |
3839 | } | |
3840 | ||
3841 | ||
1cc91f1b | 3842 | |
0f2d19dd JB |
3843 | double |
3844 | scm_num2dbl (a, why) | |
3845 | SCM a; | |
3eeba8d4 | 3846 | const char *why; |
0f2d19dd JB |
3847 | { |
3848 | if (SCM_INUMP (a)) | |
3849 | return (double) SCM_INUM (a); | |
3850 | #ifdef SCM_FLOATS | |
3851 | SCM_ASSERT (SCM_NIMP (a), a, "wrong type argument", why); | |
3852 | if (SCM_REALP (a)) | |
3853 | return (SCM_REALPART (a)); | |
3854 | #endif | |
3855 | #ifdef SCM_BIGDIG | |
3856 | return scm_big2dbl (a); | |
3857 | #endif | |
3858 | SCM_ASSERT (0, a, "wrong type argument", why); | |
3859 | return SCM_UNSPECIFIED; | |
3860 | } | |
3861 | ||
3862 | ||
0f2d19dd | 3863 | SCM_PROC1 (s_divide, "/", scm_tc7_asubr, scm_divide); |
1cc91f1b | 3864 | |
0f2d19dd | 3865 | SCM |
f872b822 | 3866 | scm_divide (x, y) |
0f2d19dd JB |
3867 | SCM x; |
3868 | SCM y; | |
0f2d19dd JB |
3869 | { |
3870 | #ifdef SCM_FLOATS | |
3871 | double d, r, i, a; | |
f872b822 MD |
3872 | if (SCM_NINUMP (x)) |
3873 | { | |
3874 | #ifndef SCM_RECKLESS | |
3875 | if (!(SCM_NIMP (x))) | |
3876 | { | |
3877 | badx: | |
3878 | scm_wta (x, (char *) SCM_ARG1, s_divide); | |
3879 | } | |
3880 | #endif | |
3881 | if (SCM_UNBNDP (y)) | |
3882 | { | |
3883 | #ifdef SCM_BIGDIG | |
3884 | if (SCM_BIGP (x)) | |
3885 | return scm_makdbl (1.0 / scm_big2dbl (x), 0.0); | |
3886 | #endif | |
3887 | SCM_ASRTGO (SCM_INEXP (x), badx); | |
3888 | if (SCM_REALP (x)) | |
3889 | return scm_makdbl (1.0 / SCM_REALPART (x), 0.0); | |
3890 | r = SCM_REAL (x); | |
3891 | i = SCM_IMAG (x); | |
3892 | d = r * r + i * i; | |
3893 | return scm_makdbl (r / d, -i / d); | |
3894 | } | |
3895 | #ifdef SCM_BIGDIG | |
3896 | if (SCM_BIGP (x)) | |
3897 | { | |
3898 | SCM z; | |
3899 | if (SCM_INUMP (y)) | |
3900 | { | |
3901 | z = SCM_INUM (y); | |
3902 | #ifndef SCM_RECKLESS | |
3903 | if (!z) | |
3904 | scm_num_overflow (s_divide); | |
3905 | #endif | |
3906 | if (1 == z) | |
3907 | return x; | |
3908 | if (z < 0) | |
3909 | z = -z; | |
3910 | if (z < SCM_BIGRAD) | |
3911 | { | |
3912 | SCM w = scm_copybig (x, SCM_BIGSIGN (x) ? (y > 0) : (y < 0)); | |
3913 | return (scm_divbigdig (SCM_BDIGITS (w), SCM_NUMDIGS (w), | |
3914 | (SCM_BIGDIG) z) | |
3915 | ? scm_makdbl (scm_big2dbl (x) / SCM_INUM (y), 0.0) | |
3916 | : scm_normbig (w)); | |
3917 | } | |
3918 | #ifndef SCM_DIGSTOOBIG | |
3919 | z = scm_pseudolong (z); | |
3920 | z = scm_divbigbig (SCM_BDIGITS (x), SCM_NUMDIGS (x), | |
3921 | (SCM_BIGDIG *) & z, SCM_DIGSPERLONG, | |
3922 | SCM_BIGSIGN (x) ? (y > 0) : (y < 0), 3); | |
3923 | #else | |
3924 | { | |
3925 | SCM_BIGDIG zdigs[SCM_DIGSPERLONG]; | |
3926 | scm_longdigs (z, zdigs); | |
3927 | z = scm_divbigbig (SCM_BDIGITS (x), SCM_NUMDIGS (x), | |
3928 | zdigs, SCM_DIGSPERLONG, | |
3929 | SCM_BIGSIGN (x) ? (y > 0) : (y < 0), 3); | |
3930 | } | |
3931 | #endif | |
3932 | return z ? z : scm_makdbl (scm_big2dbl (x) / SCM_INUM (y), 0.0); | |
3933 | } | |
3934 | SCM_ASRTGO (SCM_NIMP (y), bady); | |
3935 | if (SCM_BIGP (y)) | |
3936 | { | |
3937 | z = scm_divbigbig (SCM_BDIGITS (x), SCM_NUMDIGS (x), | |
3938 | SCM_BDIGITS (y), SCM_NUMDIGS (y), | |
3939 | SCM_BIGSIGN (x) ^ SCM_BIGSIGN (y), 3); | |
3940 | return z ? z : scm_makdbl (scm_big2dbl (x) / scm_big2dbl (y), | |
3941 | 0.0); | |
3942 | } | |
3943 | SCM_ASRTGO (SCM_INEXP (y), bady); | |
3944 | if (SCM_REALP (y)) | |
3945 | return scm_makdbl (scm_big2dbl (x) / SCM_REALPART (y), 0.0); | |
3946 | a = scm_big2dbl (x); | |
3947 | goto complex_div; | |
3948 | } | |
3949 | #endif | |
3950 | SCM_ASRTGO (SCM_INEXP (x), badx); | |
3951 | if (SCM_INUMP (y)) | |
3952 | { | |
3953 | d = SCM_INUM (y); | |
3954 | goto basic_div; | |
3955 | } | |
3956 | #ifdef SCM_BIGDIG | |
3957 | SCM_ASRTGO (SCM_NIMP (y), bady); | |
3958 | if (SCM_BIGP (y)) | |
3959 | { | |
3960 | d = scm_big2dbl (y); | |
3961 | goto basic_div; | |
3962 | } | |
3963 | SCM_ASRTGO (SCM_INEXP (y), bady); | |
3964 | #else | |
3965 | SCM_ASRTGO (SCM_NIMP (y) && SCM_INEXP (y), bady); | |
3966 | #endif | |
3967 | if (SCM_REALP (y)) | |
3968 | { | |
3969 | d = SCM_REALPART (y); | |
3970 | basic_div: | |
3971 | return scm_makdbl (SCM_REALPART (x) / d, | |
3972 | SCM_CPLXP (x) ? SCM_IMAG (x) / d : 0.0); | |
3973 | } | |
3974 | a = SCM_REALPART (x); | |
3975 | if (SCM_REALP (x)) | |
3976 | goto complex_div; | |
3977 | r = SCM_REAL (y); | |
3978 | i = SCM_IMAG (y); | |
3979 | d = r * r + i * i; | |
3980 | return scm_makdbl ((a * r + SCM_IMAG (x) * i) / d, | |
3981 | (SCM_IMAG (x) * r - a * i) / d); | |
3982 | } | |
3983 | if (SCM_UNBNDP (y)) | |
3984 | { | |
3985 | if ((SCM_MAKINUM (1L) == x) || (SCM_MAKINUM (-1L) == x)) | |
3986 | return x; | |
3987 | return scm_makdbl (1.0 / ((double) SCM_INUM (x)), 0.0); | |
3988 | } | |
3989 | if (SCM_NINUMP (y)) | |
3990 | { | |
3991 | #ifdef SCM_BIGDIG | |
3992 | SCM_ASRTGO (SCM_NIMP (y), bady); | |
3993 | if (SCM_BIGP (y)) | |
3994 | return scm_makdbl (SCM_INUM (x) / scm_big2dbl (y), 0.0); | |
3995 | #ifndef SCM_RECKLESS | |
3996 | if (!(SCM_INEXP (y))) | |
3997 | { | |
3998 | bady: | |
3999 | scm_wta (y, (char *) SCM_ARG2, s_divide); | |
4000 | } | |
4001 | #endif | |
4002 | #else | |
4003 | #ifndef SCM_RECKLESS | |
4004 | if (!(SCM_NIMP (y) && SCM_INEXP (y))) | |
4005 | { | |
4006 | bady: | |
4007 | scm_wta (y, (char *) SCM_ARG2, s_divide); | |
4008 | } | |
4009 | #endif | |
4010 | #endif | |
4011 | if (SCM_REALP (y)) | |
4012 | return scm_makdbl (SCM_INUM (x) / SCM_REALPART (y), 0.0); | |
4013 | a = SCM_INUM (x); | |
4014 | complex_div: | |
4015 | r = SCM_REAL (y); | |
4016 | i = SCM_IMAG (y); | |
4017 | d = r * r + i * i; | |
4018 | return scm_makdbl ((a * r) / d, (-a * i) / d); | |
4019 | } | |
4020 | #else | |
4021 | #ifdef SCM_BIGDIG | |
4022 | if (SCM_NINUMP (x)) | |
4023 | { | |
0f2d19dd | 4024 | SCM z; |
f872b822 MD |
4025 | SCM_ASSERT (SCM_NIMP (x) && SCM_BIGP (x), x, SCM_ARG1, s_divide); |
4026 | if (SCM_UNBNDP (y)) | |
4027 | goto ov; | |
4028 | if (SCM_INUMP (y)) | |
4029 | { | |
4030 | z = SCM_INUM (y); | |
4031 | if (!z) | |
4032 | goto ov; | |
4033 | if (1 == z) | |
4034 | return x; | |
4035 | if (z < 0) | |
4036 | z = -z; | |
4037 | if (z < SCM_BIGRAD) | |
4038 | { | |
4039 | SCM w = scm_copybig (x, SCM_BIGSIGN (x) ? (y > 0) : (y < 0)); | |
4040 | if (scm_divbigdig (SCM_BDIGITS (w), SCM_NUMDIGS (w), | |
4041 | (SCM_BIGDIG) z)) | |
4042 | goto ov; | |
4043 | return w; | |
4044 | } | |
4045 | #ifndef SCM_DIGSTOOBIG | |
4046 | z = scm_pseudolong (z); | |
4047 | z = scm_divbigbig (SCM_BDIGITS (x), SCM_NUMDIGS (x), | |
4048 | &z, SCM_DIGSPERLONG, | |
4049 | SCM_BIGSIGN (x) ? (y > 0) : (y < 0), 3); | |
4050 | #else | |
4051 | { | |
4052 | SCM_BIGDIG zdigs[SCM_DIGSPERLONG]; | |
4053 | scm_longdigs (z, zdigs); | |
4054 | z = scm_divbigbig (SCM_BDIGITS (x), SCM_NUMDIGS (x), | |
4055 | zdigs, SCM_DIGSPERLONG, | |
4056 | SCM_BIGSIGN (x) ? (y > 0) : (y < 0), 3); | |
4057 | } | |
4058 | #endif | |
4059 | } | |
4060 | else | |
4061 | { | |
4062 | SCM_ASRTGO (SCM_NIMP (y) && SCM_BIGP (y), bady); | |
4063 | z = scm_divbigbig (SCM_BDIGITS (x), SCM_NUMDIGS (x), | |
4064 | SCM_BDIGITS (y), SCM_NUMDIGS (y), | |
4065 | SCM_BIGSIGN (x) ^ SCM_BIGSIGN (y), 3); | |
4066 | } | |
4067 | if (!z) | |
4068 | goto ov; | |
4069 | return z; | |
4070 | } | |
4071 | if (SCM_UNBNDP (y)) | |
4072 | { | |
4073 | if ((SCM_MAKINUM (1L) == x) || (SCM_MAKINUM (-1L) == x)) | |
4074 | return x; | |
4075 | goto ov; | |
4076 | } | |
4077 | if (SCM_NINUMP (y)) | |
4078 | { | |
cf7c17e9 | 4079 | #ifndef SCM_RECKLESS |
f872b822 MD |
4080 | if (!(SCM_NIMP (y) && SCM_BIGP (y))) |
4081 | { | |
4082 | bady: | |
4083 | scm_wta (y, (char *) SCM_ARG2, s_divide); | |
4084 | } | |
4085 | #endif | |
4086 | goto ov; | |
4087 | } | |
0f2d19dd | 4088 | #else |
f872b822 MD |
4089 | SCM_ASSERT (SCM_INUMP (x), x, SCM_ARG1, s_divide); |
4090 | if (SCM_UNBNDP (y)) | |
4091 | { | |
4092 | if ((SCM_MAKINUM (1L) == x) || (SCM_MAKINUM (-1L) == x)) | |
4093 | return x; | |
4094 | goto ov; | |
4095 | } | |
4096 | SCM_ASSERT (SCM_INUMP (y), y, SCM_ARG2, s_divide); | |
4097 | #endif | |
0f2d19dd JB |
4098 | #endif |
4099 | { | |
f872b822 MD |
4100 | long z = SCM_INUM (y); |
4101 | if ((0 == z) || SCM_INUM (x) % z) | |
4102 | goto ov; | |
4103 | z = SCM_INUM (x) / z; | |
4104 | if (SCM_FIXABLE (z)) | |
4105 | return SCM_MAKINUM (z); | |
0f2d19dd | 4106 | #ifdef SCM_BIGDIG |
f872b822 | 4107 | return scm_long2big (z); |
0f2d19dd JB |
4108 | #endif |
4109 | #ifdef SCM_FLOATS | |
f872b822 MD |
4110 | ov: |
4111 | return scm_makdbl (((double) SCM_INUM (x)) / ((double) SCM_INUM (y)), 0.0); | |
0f2d19dd | 4112 | #else |
f872b822 MD |
4113 | ov: |
4114 | scm_num_overflow (s_divide); | |
0f2d19dd JB |
4115 | return SCM_UNSPECIFIED; |
4116 | #endif | |
4117 | } | |
4118 | } | |
4119 | ||
4120 | ||
4121 | ||
4122 | ||
4123 | #ifdef SCM_FLOATS | |
4124 | SCM_PROC1 (s_asinh, "$asinh", scm_tc7_cxr, (SCM (*)()) scm_asinh); | |
1cc91f1b | 4125 | |
0f2d19dd | 4126 | double |
f872b822 | 4127 | scm_asinh (x) |
0f2d19dd | 4128 | double x; |
0f2d19dd | 4129 | { |
f872b822 | 4130 | return log (x + sqrt (x * x + 1)); |
0f2d19dd JB |
4131 | } |
4132 | ||
4133 | ||
4134 | ||
4135 | ||
4136 | SCM_PROC1 (s_acosh, "$acosh", scm_tc7_cxr, (SCM (*)()) scm_acosh); | |
1cc91f1b | 4137 | |
0f2d19dd | 4138 | double |
f872b822 | 4139 | scm_acosh (x) |
0f2d19dd | 4140 | double x; |
0f2d19dd | 4141 | { |
f872b822 | 4142 | return log (x + sqrt (x * x - 1)); |
0f2d19dd JB |
4143 | } |
4144 | ||
4145 | ||
4146 | ||
4147 | ||
4148 | SCM_PROC1 (s_atanh, "$atanh", scm_tc7_cxr, (SCM (*)()) scm_atanh); | |
1cc91f1b | 4149 | |
0f2d19dd | 4150 | double |
f872b822 | 4151 | scm_atanh (x) |
0f2d19dd | 4152 | double x; |
0f2d19dd | 4153 | { |
f872b822 | 4154 | return 0.5 * log ((1 + x) / (1 - x)); |
0f2d19dd JB |
4155 | } |
4156 | ||
4157 | ||
4158 | ||
4159 | ||
4160 | SCM_PROC1 (s_truncate, "truncate", scm_tc7_cxr, (SCM (*)()) scm_truncate); | |
1cc91f1b | 4161 | |
0f2d19dd | 4162 | double |
f872b822 | 4163 | scm_truncate (x) |
0f2d19dd | 4164 | double x; |
0f2d19dd | 4165 | { |
f872b822 MD |
4166 | if (x < 0.0) |
4167 | return -floor (-x); | |
4168 | return floor (x); | |
0f2d19dd JB |
4169 | } |
4170 | ||
4171 | ||
4172 | ||
4173 | SCM_PROC1 (s_round, "round", scm_tc7_cxr, (SCM (*)()) scm_round); | |
1cc91f1b | 4174 | |
0f2d19dd | 4175 | double |
f872b822 | 4176 | scm_round (x) |
0f2d19dd | 4177 | double x; |
0f2d19dd JB |
4178 | { |
4179 | double plus_half = x + 0.5; | |
f872b822 | 4180 | double result = floor (plus_half); |
0f2d19dd | 4181 | /* Adjust so that the scm_round is towards even. */ |
f872b822 | 4182 | return (plus_half == result && plus_half / 2 != floor (plus_half / 2)) |
0f2d19dd JB |
4183 | ? result - 1 : result; |
4184 | } | |
4185 | ||
4186 | ||
4187 | ||
4188 | SCM_PROC1 (s_exact_to_inexact, "exact->inexact", scm_tc7_cxr, (SCM (*)()) scm_exact_to_inexact); | |
1cc91f1b | 4189 | |
0f2d19dd | 4190 | double |
f872b822 | 4191 | scm_exact_to_inexact (z) |
0f2d19dd | 4192 | double z; |
0f2d19dd JB |
4193 | { |
4194 | return z; | |
4195 | } | |
4196 | ||
4197 | ||
4198 | SCM_PROC1 (s_i_floor, "floor", scm_tc7_cxr, (SCM (*)()) floor); | |
4199 | SCM_PROC1 (s_i_ceil, "ceiling", scm_tc7_cxr, (SCM (*)()) ceil); | |
f872b822 MD |
4200 | SCM_PROC1 (s_i_sqrt, "$sqrt", scm_tc7_cxr, (SCM (*)()) sqrt); |
4201 | SCM_PROC1 (s_i_abs, "$abs", scm_tc7_cxr, (SCM (*)()) fabs); | |
4202 | SCM_PROC1 (s_i_exp, "$exp", scm_tc7_cxr, (SCM (*)()) exp); | |
4203 | SCM_PROC1 (s_i_log, "$log", scm_tc7_cxr, (SCM (*)()) log); | |
4204 | SCM_PROC1 (s_i_sin, "$sin", scm_tc7_cxr, (SCM (*)()) sin); | |
4205 | SCM_PROC1 (s_i_cos, "$cos", scm_tc7_cxr, (SCM (*)()) cos); | |
4206 | SCM_PROC1 (s_i_tan, "$tan", scm_tc7_cxr, (SCM (*)()) tan); | |
4207 | SCM_PROC1 (s_i_asin, "$asin", scm_tc7_cxr, (SCM (*)()) asin); | |
4208 | SCM_PROC1 (s_i_acos, "$acos", scm_tc7_cxr, (SCM (*)()) acos); | |
4209 | SCM_PROC1 (s_i_atan, "$atan", scm_tc7_cxr, (SCM (*)()) atan); | |
4210 | SCM_PROC1 (s_i_sinh, "$sinh", scm_tc7_cxr, (SCM (*)()) sinh); | |
4211 | SCM_PROC1 (s_i_cosh, "$cosh", scm_tc7_cxr, (SCM (*)()) cosh); | |
4212 | SCM_PROC1 (s_i_tanh, "$tanh", scm_tc7_cxr, (SCM (*)()) tanh); | |
4213 | ||
4214 | struct dpair | |
4215 | { | |
4216 | double x, y; | |
4217 | }; | |
4218 | ||
3eeba8d4 JB |
4219 | static void scm_two_doubles (SCM z1, |
4220 | SCM z2, | |
4221 | const char *sstring, | |
4222 | struct dpair * xy); | |
f872b822 MD |
4223 | |
4224 | static void | |
4225 | scm_two_doubles (z1, z2, sstring, xy) | |
0f2d19dd | 4226 | SCM z1, z2; |
3eeba8d4 | 4227 | const char *sstring; |
0f2d19dd JB |
4228 | struct dpair *xy; |
4229 | { | |
f872b822 MD |
4230 | if (SCM_INUMP (z1)) |
4231 | xy->x = SCM_INUM (z1); | |
4232 | else | |
4233 | { | |
4234 | #ifdef SCM_BIGDIG | |
4235 | SCM_ASRTGO (SCM_NIMP (z1), badz1); | |
4236 | if (SCM_BIGP (z1)) | |
4237 | xy->x = scm_big2dbl (z1); | |
4238 | else | |
4239 | { | |
4240 | #ifndef SCM_RECKLESS | |
4241 | if (!(SCM_REALP (z1))) | |
4242 | badz1:scm_wta (z1, (char *) SCM_ARG1, sstring); | |
4243 | #endif | |
4244 | xy->x = SCM_REALPART (z1); | |
4245 | } | |
4246 | #else | |
4247 | { | |
4248 | SCM_ASSERT (SCM_NIMP (z1) && SCM_REALP (z1), z1, SCM_ARG1, sstring); | |
4249 | xy->x = SCM_REALPART (z1); | |
4250 | } | |
4251 | #endif | |
4252 | } | |
4253 | if (SCM_INUMP (z2)) | |
4254 | xy->y = SCM_INUM (z2); | |
4255 | else | |
4256 | { | |
4257 | #ifdef SCM_BIGDIG | |
4258 | SCM_ASRTGO (SCM_NIMP (z2), badz2); | |
4259 | if (SCM_BIGP (z2)) | |
4260 | xy->y = scm_big2dbl (z2); | |
4261 | else | |
4262 | { | |
4263 | #ifndef SCM_RECKLESS | |
4264 | if (!(SCM_REALP (z2))) | |
4265 | badz2:scm_wta (z2, (char *) SCM_ARG2, sstring); | |
4266 | #endif | |
4267 | xy->y = SCM_REALPART (z2); | |
4268 | } | |
4269 | #else | |
4270 | { | |
4271 | SCM_ASSERT (SCM_NIMP (z2) && SCM_REALP (z2), z2, SCM_ARG2, sstring); | |
4272 | xy->y = SCM_REALPART (z2); | |
4273 | } | |
4274 | #endif | |
4275 | } | |
0f2d19dd JB |
4276 | } |
4277 | ||
4278 | ||
4279 | ||
4280 | ||
f872b822 | 4281 | SCM_PROC (s_sys_expt, "$expt", 2, 0, 0, scm_sys_expt); |
1cc91f1b | 4282 | |
0f2d19dd | 4283 | SCM |
f872b822 | 4284 | scm_sys_expt (z1, z2) |
0f2d19dd JB |
4285 | SCM z1; |
4286 | SCM z2; | |
0f2d19dd JB |
4287 | { |
4288 | struct dpair xy; | |
f872b822 MD |
4289 | scm_two_doubles (z1, z2, s_sys_expt, &xy); |
4290 | return scm_makdbl (pow (xy.x, xy.y), 0.0); | |
0f2d19dd JB |
4291 | } |
4292 | ||
4293 | ||
4294 | ||
f872b822 | 4295 | SCM_PROC (s_sys_atan2, "$atan2", 2, 0, 0, scm_sys_atan2); |
1cc91f1b | 4296 | |
0f2d19dd | 4297 | SCM |
f872b822 | 4298 | scm_sys_atan2 (z1, z2) |
0f2d19dd JB |
4299 | SCM z1; |
4300 | SCM z2; | |
0f2d19dd JB |
4301 | { |
4302 | struct dpair xy; | |
f872b822 MD |
4303 | scm_two_doubles (z1, z2, s_sys_atan2, &xy); |
4304 | return scm_makdbl (atan2 (xy.x, xy.y), 0.0); | |
0f2d19dd JB |
4305 | } |
4306 | ||
4307 | ||
4308 | ||
f872b822 | 4309 | SCM_PROC (s_make_rectangular, "make-rectangular", 2, 0, 0, scm_make_rectangular); |
1cc91f1b | 4310 | |
0f2d19dd | 4311 | SCM |
f872b822 | 4312 | scm_make_rectangular (z1, z2) |
0f2d19dd JB |
4313 | SCM z1; |
4314 | SCM z2; | |
0f2d19dd JB |
4315 | { |
4316 | struct dpair xy; | |
f872b822 MD |
4317 | scm_two_doubles (z1, z2, s_make_rectangular, &xy); |
4318 | return scm_makdbl (xy.x, xy.y); | |
0f2d19dd JB |
4319 | } |
4320 | ||
4321 | ||
4322 | ||
f872b822 | 4323 | SCM_PROC (s_make_polar, "make-polar", 2, 0, 0, scm_make_polar); |
1cc91f1b | 4324 | |
0f2d19dd | 4325 | SCM |
f872b822 | 4326 | scm_make_polar (z1, z2) |
0f2d19dd JB |
4327 | SCM z1; |
4328 | SCM z2; | |
0f2d19dd JB |
4329 | { |
4330 | struct dpair xy; | |
f872b822 MD |
4331 | scm_two_doubles (z1, z2, s_make_polar, &xy); |
4332 | return scm_makdbl (xy.x * cos (xy.y), xy.x * sin (xy.y)); | |
0f2d19dd JB |
4333 | } |
4334 | ||
4335 | ||
4336 | ||
4337 | ||
f872b822 | 4338 | SCM_PROC (s_real_part, "real-part", 1, 0, 0, scm_real_part); |
1cc91f1b | 4339 | |
0f2d19dd | 4340 | SCM |
f872b822 | 4341 | scm_real_part (z) |
0f2d19dd | 4342 | SCM z; |
0f2d19dd | 4343 | { |
f872b822 MD |
4344 | if (SCM_NINUMP (z)) |
4345 | { | |
4346 | #ifdef SCM_BIGDIG | |
4347 | SCM_ASRTGO (SCM_NIMP (z), badz); | |
4348 | if (SCM_BIGP (z)) | |
4349 | return z; | |
4350 | #ifndef SCM_RECKLESS | |
4351 | if (!(SCM_INEXP (z))) | |
4352 | { | |
4353 | badz: | |
4354 | scm_wta (z, (char *) SCM_ARG1, s_real_part); | |
4355 | } | |
4356 | #endif | |
4357 | #else | |
4358 | SCM_ASSERT (SCM_NIMP (z) && SCM_INEXP (z), z, SCM_ARG1, s_real_part); | |
4359 | #endif | |
4360 | if (SCM_CPLXP (z)) | |
4361 | return scm_makdbl (SCM_REAL (z), 0.0); | |
4362 | } | |
0f2d19dd JB |
4363 | return z; |
4364 | } | |
4365 | ||
4366 | ||
4367 | ||
f872b822 | 4368 | SCM_PROC (s_imag_part, "imag-part", 1, 0, 0, scm_imag_part); |
1cc91f1b | 4369 | |
0f2d19dd | 4370 | SCM |
f872b822 | 4371 | scm_imag_part (z) |
0f2d19dd | 4372 | SCM z; |
0f2d19dd | 4373 | { |
f872b822 MD |
4374 | if (SCM_INUMP (z)) |
4375 | return SCM_INUM0; | |
4376 | #ifdef SCM_BIGDIG | |
4377 | SCM_ASRTGO (SCM_NIMP (z), badz); | |
4378 | if (SCM_BIGP (z)) | |
4379 | return SCM_INUM0; | |
4380 | #ifndef SCM_RECKLESS | |
4381 | if (!(SCM_INEXP (z))) | |
4382 | { | |
4383 | badz: | |
4384 | scm_wta (z, (char *) SCM_ARG1, s_imag_part); | |
4385 | } | |
4386 | #endif | |
4387 | #else | |
4388 | SCM_ASSERT (SCM_NIMP (z) && SCM_INEXP (z), z, SCM_ARG1, s_imag_part); | |
4389 | #endif | |
4390 | if (SCM_CPLXP (z)) | |
4391 | return scm_makdbl (SCM_IMAG (z), 0.0); | |
0f2d19dd JB |
4392 | return scm_flo0; |
4393 | } | |
4394 | ||
4395 | ||
4396 | ||
f872b822 | 4397 | SCM_PROC (s_magnitude, "magnitude", 1, 0, 0, scm_magnitude); |
1cc91f1b | 4398 | |
0f2d19dd | 4399 | SCM |
f872b822 | 4400 | scm_magnitude (z) |
0f2d19dd | 4401 | SCM z; |
0f2d19dd | 4402 | { |
f872b822 MD |
4403 | if (SCM_INUMP (z)) |
4404 | return scm_abs (z); | |
4405 | #ifdef SCM_BIGDIG | |
4406 | SCM_ASRTGO (SCM_NIMP (z), badz); | |
4407 | if (SCM_BIGP (z)) | |
4408 | return scm_abs (z); | |
4409 | #ifndef SCM_RECKLESS | |
4410 | if (!(SCM_INEXP (z))) | |
4411 | { | |
4412 | badz: | |
4413 | scm_wta (z, (char *) SCM_ARG1, s_magnitude); | |
4414 | } | |
4415 | #endif | |
4416 | #else | |
4417 | SCM_ASSERT (SCM_NIMP (z) && SCM_INEXP (z), z, SCM_ARG1, s_magnitude); | |
4418 | #endif | |
4419 | if (SCM_CPLXP (z)) | |
0f2d19dd | 4420 | { |
f872b822 MD |
4421 | double i = SCM_IMAG (z), r = SCM_REAL (z); |
4422 | return scm_makdbl (sqrt (i * i + r * r), 0.0); | |
0f2d19dd | 4423 | } |
f872b822 | 4424 | return scm_makdbl (fabs (SCM_REALPART (z)), 0.0); |
0f2d19dd JB |
4425 | } |
4426 | ||
4427 | ||
4428 | ||
4429 | ||
f872b822 | 4430 | SCM_PROC (s_angle, "angle", 1, 0, 0, scm_angle); |
1cc91f1b | 4431 | |
0f2d19dd | 4432 | SCM |
f872b822 | 4433 | scm_angle (z) |
0f2d19dd | 4434 | SCM z; |
0f2d19dd JB |
4435 | { |
4436 | double x, y = 0.0; | |
f872b822 MD |
4437 | if (SCM_INUMP (z)) |
4438 | { | |
4439 | x = (z >= SCM_INUM0) ? 1.0 : -1.0; | |
4440 | goto do_angle; | |
4441 | } | |
4442 | #ifdef SCM_BIGDIG | |
4443 | SCM_ASRTGO (SCM_NIMP (z), badz); | |
4444 | if (SCM_BIGP (z)) | |
4445 | { | |
4446 | x = (SCM_TYP16 (z) == scm_tc16_bigpos) ? 1.0 : -1.0; | |
4447 | goto do_angle; | |
4448 | } | |
4449 | #ifndef SCM_RECKLESS | |
4450 | if (!(SCM_INEXP (z))) | |
4451 | { | |
4452 | badz: | |
4453 | scm_wta (z, (char *) SCM_ARG1, s_angle); | |
4454 | } | |
4455 | #endif | |
4456 | #else | |
4457 | SCM_ASSERT (SCM_NIMP (z) && SCM_INEXP (z), z, SCM_ARG1, s_angle); | |
4458 | #endif | |
4459 | if (SCM_REALP (z)) | |
4460 | { | |
4461 | x = SCM_REALPART (z); | |
0f2d19dd JB |
4462 | goto do_angle; |
4463 | } | |
f872b822 MD |
4464 | x = SCM_REAL (z); |
4465 | y = SCM_IMAG (z); | |
0f2d19dd | 4466 | do_angle: |
f872b822 | 4467 | return scm_makdbl (atan2 (y, x), 0.0); |
0f2d19dd JB |
4468 | } |
4469 | ||
4470 | ||
f872b822 | 4471 | SCM_PROC (s_inexact_to_exact, "inexact->exact", 1, 0, 0, scm_inexact_to_exact); |
1cc91f1b | 4472 | |
0f2d19dd | 4473 | SCM |
f872b822 | 4474 | scm_inexact_to_exact (z) |
0f2d19dd | 4475 | SCM z; |
0f2d19dd | 4476 | { |
f872b822 MD |
4477 | if (SCM_INUMP (z)) |
4478 | return z; | |
4479 | #ifdef SCM_BIGDIG | |
4480 | SCM_ASRTGO (SCM_NIMP (z), badz); | |
4481 | if (SCM_BIGP (z)) | |
4482 | return z; | |
4483 | #ifndef SCM_RECKLESS | |
4484 | if (!(SCM_REALP (z))) | |
4485 | { | |
4486 | badz: | |
4487 | scm_wta (z, (char *) SCM_ARG1, s_inexact_to_exact); | |
4488 | } | |
4489 | #endif | |
4490 | #else | |
4491 | SCM_ASSERT (SCM_NIMP (z) && SCM_REALP (z), z, SCM_ARG1, s_inexact_to_exact); | |
4492 | #endif | |
4493 | #ifdef SCM_BIGDIG | |
0f2d19dd | 4494 | { |
f872b822 MD |
4495 | double u = floor (SCM_REALPART (z) + 0.5); |
4496 | if ((u <= SCM_MOST_POSITIVE_FIXNUM) && (-u <= -SCM_MOST_NEGATIVE_FIXNUM)) | |
4497 | { | |
4498 | /* Negation is a workaround for HP700 cc bug */ | |
4499 | SCM ans = SCM_MAKINUM ((long) u); | |
4500 | if (SCM_INUM (ans) == (long) u) | |
4501 | return ans; | |
4502 | } | |
e6f3ef58 | 4503 | SCM_ASRTGO (isfinite (u), badz); /* problem? */ |
f872b822 | 4504 | return scm_dbl2big (u); |
0f2d19dd | 4505 | } |
f872b822 MD |
4506 | #else |
4507 | return SCM_MAKINUM ((long) floor (SCM_REALPART (z) + 0.5)); | |
4508 | #endif | |
0f2d19dd JB |
4509 | } |
4510 | ||
4511 | ||
4512 | ||
f872b822 MD |
4513 | #else /* ~SCM_FLOATS */ |
4514 | SCM_PROC (s_trunc, "truncate", 1, 0, 0, scm_trunc); | |
1cc91f1b | 4515 | |
0f2d19dd | 4516 | SCM |
f872b822 | 4517 | scm_trunc (x) |
0f2d19dd | 4518 | SCM x; |
0f2d19dd | 4519 | { |
f872b822 | 4520 | SCM_ASSERT (SCM_INUMP (x), x, SCM_ARG1, s_truncate); |
0f2d19dd JB |
4521 | return x; |
4522 | } | |
4523 | ||
4524 | ||
4525 | ||
f872b822 | 4526 | #endif /* SCM_FLOATS */ |
0f2d19dd JB |
4527 | |
4528 | #ifdef SCM_BIGDIG | |
f872b822 | 4529 | #ifdef SCM_FLOATS |
0f2d19dd | 4530 | /* d must be integer */ |
1cc91f1b | 4531 | |
0f2d19dd | 4532 | SCM |
f872b822 | 4533 | scm_dbl2big (d) |
0f2d19dd | 4534 | double d; |
0f2d19dd JB |
4535 | { |
4536 | scm_sizet i = 0; | |
4537 | long c; | |
4538 | SCM_BIGDIG *digits; | |
4539 | SCM ans; | |
f872b822 MD |
4540 | double u = (d < 0) ? -d : d; |
4541 | while (0 != floor (u)) | |
4542 | { | |
4543 | u /= SCM_BIGRAD; | |
4544 | i++; | |
4545 | } | |
4546 | ans = scm_mkbig (i, d < 0); | |
4547 | digits = SCM_BDIGITS (ans); | |
4548 | while (i--) | |
4549 | { | |
4550 | u *= SCM_BIGRAD; | |
4551 | c = floor (u); | |
4552 | u -= c; | |
4553 | digits[i] = c; | |
4554 | } | |
cf7c17e9 | 4555 | #ifndef SCM_RECKLESS |
e1724d20 | 4556 | if (u != 0) |
52859adf | 4557 | scm_num_overflow ("dbl2big"); |
e1724d20 | 4558 | #endif |
0f2d19dd JB |
4559 | return ans; |
4560 | } | |
4561 | ||
4562 | ||
4563 | ||
0f2d19dd | 4564 | double |
f872b822 | 4565 | scm_big2dbl (b) |
0f2d19dd | 4566 | SCM b; |
0f2d19dd JB |
4567 | { |
4568 | double ans = 0.0; | |
f872b822 MD |
4569 | scm_sizet i = SCM_NUMDIGS (b); |
4570 | SCM_BIGDIG *digits = SCM_BDIGITS (b); | |
4571 | while (i--) | |
4572 | ans = digits[i] + SCM_BIGRAD * ans; | |
4573 | if (scm_tc16_bigneg == SCM_TYP16 (b)) | |
4574 | return -ans; | |
0f2d19dd JB |
4575 | return ans; |
4576 | } | |
f872b822 | 4577 | #endif |
0f2d19dd JB |
4578 | #endif |
4579 | ||
1cc91f1b | 4580 | |
0f2d19dd | 4581 | SCM |
f872b822 | 4582 | scm_long2num (sl) |
0f2d19dd | 4583 | long sl; |
0f2d19dd | 4584 | { |
f872b822 MD |
4585 | if (!SCM_FIXABLE (sl)) |
4586 | { | |
0f2d19dd | 4587 | #ifdef SCM_BIGDIG |
f872b822 | 4588 | return scm_long2big (sl); |
0f2d19dd | 4589 | #else |
f872b822 MD |
4590 | #ifdef SCM_FLOATS |
4591 | return scm_makdbl ((double) sl, 0.0); | |
4592 | #else | |
4593 | return SCM_BOOL_F; | |
0f2d19dd | 4594 | #endif |
f872b822 MD |
4595 | #endif |
4596 | } | |
4597 | return SCM_MAKINUM (sl); | |
0f2d19dd JB |
4598 | } |
4599 | ||
4600 | ||
4601 | #ifdef LONGLONGS | |
1cc91f1b | 4602 | |
0f2d19dd | 4603 | SCM |
f872b822 | 4604 | scm_long_long2num (sl) |
0f2d19dd | 4605 | long_long sl; |
0f2d19dd | 4606 | { |
f872b822 MD |
4607 | if (!SCM_FIXABLE (sl)) |
4608 | { | |
0f2d19dd | 4609 | #ifdef SCM_BIGDIG |
f872b822 | 4610 | return scm_long_long2big (sl); |
0f2d19dd | 4611 | #else |
f872b822 MD |
4612 | #ifdef SCM_FLOATS |
4613 | return scm_makdbl ((double) sl, 0.0); | |
4614 | #else | |
4615 | return SCM_BOOL_F; | |
0f2d19dd | 4616 | #endif |
f872b822 MD |
4617 | #endif |
4618 | } | |
4619 | return SCM_MAKINUM (sl); | |
0f2d19dd JB |
4620 | } |
4621 | #endif | |
4622 | ||
4623 | ||
1cc91f1b | 4624 | |
0f2d19dd | 4625 | SCM |
f872b822 | 4626 | scm_ulong2num (sl) |
0f2d19dd | 4627 | unsigned long sl; |
0f2d19dd | 4628 | { |
f872b822 MD |
4629 | if (!SCM_POSFIXABLE (sl)) |
4630 | { | |
0f2d19dd | 4631 | #ifdef SCM_BIGDIG |
f872b822 | 4632 | return scm_ulong2big (sl); |
0f2d19dd | 4633 | #else |
f872b822 MD |
4634 | #ifdef SCM_FLOATS |
4635 | return scm_makdbl ((double) sl, 0.0); | |
4636 | #else | |
4637 | return SCM_BOOL_F; | |
0f2d19dd | 4638 | #endif |
f872b822 MD |
4639 | #endif |
4640 | } | |
4641 | return SCM_MAKINUM (sl); | |
0f2d19dd JB |
4642 | } |
4643 | ||
1cc91f1b | 4644 | |
0f2d19dd | 4645 | long |
f872b822 | 4646 | scm_num2long (num, pos, s_caller) |
0f2d19dd JB |
4647 | SCM num; |
4648 | char *pos; | |
3eeba8d4 | 4649 | const char *s_caller; |
0f2d19dd JB |
4650 | { |
4651 | long res; | |
f872b822 | 4652 | if (SCM_INUMP (num)) |
0f2d19dd | 4653 | { |
f872b822 | 4654 | res = SCM_INUM (num); |
0f2d19dd JB |
4655 | return res; |
4656 | } | |
f872b822 | 4657 | SCM_ASRTGO (SCM_NIMP (num), errout); |
0f2d19dd | 4658 | #ifdef SCM_FLOATS |
f872b822 | 4659 | if (SCM_REALP (num)) |
0f2d19dd | 4660 | { |
f872b822 | 4661 | double u = SCM_REALPART (num); |
0f2d19dd | 4662 | res = u; |
f872b822 | 4663 | if ((double) res == u) |
0f2d19dd JB |
4664 | { |
4665 | return res; | |
4666 | } | |
4667 | } | |
4668 | #endif | |
4669 | #ifdef SCM_BIGDIG | |
f872b822 MD |
4670 | if (SCM_BIGP (num)) |
4671 | { | |
4672 | long oldres; | |
4673 | scm_sizet l; | |
4674 | res = 0; | |
4675 | oldres = 0; | |
4676 | for (l = SCM_NUMDIGS (num); l--;) | |
4677 | { | |
4678 | res = SCM_BIGUP (res) + SCM_BDIGITS (num)[l]; | |
4679 | if (res < oldres) | |
4680 | goto errout; | |
4681 | oldres = res; | |
4682 | } | |
4683 | if (SCM_TYP16 (num) == scm_tc16_bigpos) | |
4684 | return res; | |
4685 | else | |
4686 | return -res; | |
4687 | } | |
0f2d19dd | 4688 | #endif |
f872b822 MD |
4689 | errout: |
4690 | scm_wta (num, pos, s_caller); | |
0f2d19dd JB |
4691 | return SCM_UNSPECIFIED; |
4692 | } | |
4693 | ||
4694 | ||
4695 | ||
0f2d19dd | 4696 | #ifdef LONGLONGS |
1cc91f1b | 4697 | |
0f2d19dd | 4698 | long_long |
f872b822 | 4699 | scm_num2long_long (num, pos, s_caller) |
0f2d19dd JB |
4700 | SCM num; |
4701 | char *pos; | |
3eeba8d4 | 4702 | const char *s_caller; |
0f2d19dd JB |
4703 | { |
4704 | long_long res; | |
f872b822 MD |
4705 | if (SCM_INUMP (num)) |
4706 | { | |
4707 | res = SCM_INUM ((long_long) num); | |
0f2d19dd JB |
4708 | return res; |
4709 | } | |
f872b822 MD |
4710 | SCM_ASRTGO (SCM_NIMP (num), errout); |
4711 | #ifdef SCM_FLOATS | |
4712 | if (SCM_REALP (num)) | |
4713 | { | |
4714 | double u = SCM_REALPART (num); | |
4715 | if (((SCM_MOST_NEGATIVE_FIXNUM * 4) <= u) | |
4716 | && (u <= (SCM_MOST_POSITIVE_FIXNUM * 4 + 3))) | |
4717 | { | |
4718 | res = u; | |
4719 | return res; | |
4720 | } | |
4721 | } | |
0f2d19dd JB |
4722 | #endif |
4723 | #ifdef SCM_BIGDIG | |
f872b822 MD |
4724 | if (SCM_BIGP (num)) |
4725 | { | |
4726 | scm_sizet l = SCM_NUMDIGS (num); | |
4727 | SCM_ASRTGO (SCM_DIGSPERLONGLONG >= l, errout); | |
4728 | res = 0; | |
4729 | for (; l--;) | |
4730 | res = SCM_LONGLONGBIGUP (res) + SCM_BDIGITS (num)[l]; | |
4731 | return res; | |
4732 | } | |
0f2d19dd | 4733 | #endif |
f872b822 MD |
4734 | errout: |
4735 | scm_wta (num, pos, s_caller); | |
0f2d19dd JB |
4736 | return SCM_UNSPECIFIED; |
4737 | } | |
4738 | #endif | |
4739 | ||
4740 | ||
1cc91f1b | 4741 | |
0f2d19dd | 4742 | unsigned long |
f872b822 | 4743 | scm_num2ulong (num, pos, s_caller) |
0f2d19dd JB |
4744 | SCM num; |
4745 | char *pos; | |
3eeba8d4 | 4746 | const char *s_caller; |
0f2d19dd JB |
4747 | { |
4748 | unsigned long res; | |
f872b822 | 4749 | if (SCM_INUMP (num)) |
0f2d19dd | 4750 | { |
f872b822 | 4751 | res = SCM_INUM ((unsigned long) num); |
0f2d19dd JB |
4752 | return res; |
4753 | } | |
f872b822 | 4754 | SCM_ASRTGO (SCM_NIMP (num), errout); |
0f2d19dd | 4755 | #ifdef SCM_FLOATS |
f872b822 | 4756 | if (SCM_REALP (num)) |
0f2d19dd | 4757 | { |
f872b822 MD |
4758 | double u = SCM_REALPART (num); |
4759 | if ((0 <= u) && (u <= (unsigned long) ~0L)) | |
0f2d19dd JB |
4760 | { |
4761 | res = u; | |
4762 | return res; | |
4763 | } | |
4764 | } | |
4765 | #endif | |
4766 | #ifdef SCM_BIGDIG | |
f872b822 MD |
4767 | if (SCM_BIGP (num)) |
4768 | { | |
4769 | unsigned long oldres; | |
4770 | scm_sizet l; | |
4771 | res = 0; | |
4772 | oldres = 0; | |
4773 | for (l = SCM_NUMDIGS (num); l--;) | |
4774 | { | |
4775 | res = SCM_BIGUP (res) + SCM_BDIGITS (num)[l]; | |
4776 | if (res < oldres) | |
4777 | goto errout; | |
4778 | oldres = res; | |
4779 | } | |
4780 | return res; | |
4781 | } | |
0f2d19dd | 4782 | #endif |
f872b822 MD |
4783 | errout: |
4784 | scm_wta (num, pos, s_caller); | |
0f2d19dd JB |
4785 | return SCM_UNSPECIFIED; |
4786 | } | |
4787 | ||
4788 | ||
4789 | #ifdef SCM_FLOATS | |
f872b822 | 4790 | #ifndef DBL_DIG |
1cc91f1b | 4791 | static void add1 SCM_P ((double f, double *fsum)); |
f872b822 MD |
4792 | static void |
4793 | add1 (f, fsum) | |
0f2d19dd JB |
4794 | double f, *fsum; |
4795 | { | |
4796 | *fsum = f + 1.0; | |
4797 | } | |
f872b822 | 4798 | #endif |
0f2d19dd JB |
4799 | #endif |
4800 | ||
4801 | ||
1cc91f1b | 4802 | |
0f2d19dd JB |
4803 | void |
4804 | scm_init_numbers () | |
0f2d19dd JB |
4805 | { |
4806 | #ifdef SCM_FLOATS | |
7e5d1209 | 4807 | scm_add_feature("inexact"); |
f872b822 MD |
4808 | SCM_NEWCELL (scm_flo0); |
4809 | #ifdef SCM_SINGLES | |
a6c64c3c | 4810 | SCM_SETCAR (scm_flo0, scm_tc_flo); |
f872b822 MD |
4811 | SCM_FLO (scm_flo0) = 0.0; |
4812 | #else | |
4813 | SCM_SETCDR (scm_flo0, (SCM) scm_must_malloc (1L * sizeof (double), "real")); | |
4814 | SCM_REAL (scm_flo0) = 0.0; | |
a6c64c3c | 4815 | SCM_SETCAR (scm_flo0, scm_tc_dblr); |
f872b822 MD |
4816 | #endif |
4817 | #ifdef DBL_DIG | |
0f2d19dd | 4818 | scm_dblprec = (DBL_DIG > 20) ? 20 : DBL_DIG; |
f872b822 | 4819 | #else |
0f2d19dd JB |
4820 | { /* determine floating point precision */ |
4821 | double f = 0.1; | |
f872b822 MD |
4822 | double fsum = 1.0 + f; |
4823 | while (fsum != 1.0) | |
4824 | { | |
4825 | f /= 10.0; | |
4826 | if (++scm_dblprec > 20) | |
4827 | break; | |
4828 | add1 (f, &fsum); | |
4829 | } | |
4830 | scm_dblprec = scm_dblprec - 1; | |
0f2d19dd | 4831 | } |
f872b822 | 4832 | #endif /* DBL_DIG */ |
0f2d19dd JB |
4833 | #endif |
4834 | #include "numbers.x" | |
4835 | } |