Commit | Line | Data |
---|---|---|
0f2d19dd JB |
1 | /* Copyright (C) 1995,1996 Free Software Foundation, Inc. |
2 | * | |
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 | |
15 | * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. | |
16 | * | |
17 | * As a special exception, the Free Software Foundation gives permission | |
18 | * for additional uses of the text contained in its release of GUILE. | |
19 | * | |
20 | * The exception is that, if you link the GUILE library with other files | |
21 | * to produce an executable, this does not by itself cause the | |
22 | * resulting executable to be covered by the GNU General Public License. | |
23 | * Your use of that executable is in no way restricted on account of | |
24 | * linking the GUILE library code into it. | |
25 | * | |
26 | * This exception does not however invalidate any other reasons why | |
27 | * the executable file might be covered by the GNU General Public License. | |
28 | * | |
29 | * This exception applies only to the code released by the | |
30 | * Free Software Foundation under the name GUILE. If you copy | |
31 | * code from other Free Software Foundation releases into a copy of | |
32 | * GUILE, as the General Public License permits, the exception does | |
33 | * not apply to the code that you add in this way. To avoid misleading | |
34 | * anyone as to the status of such modified files, you must delete | |
35 | * this exception notice from them. | |
36 | * | |
37 | * If you write modifications of your own for GUILE, it is your choice | |
38 | * whether to permit this exception to apply to your modifications. | |
39 | * If you do not wish that, delete this exception notice. | |
40 | */ | |
41 | \f | |
42 | ||
43 | #include <stdio.h> | |
44 | #include <math.h> | |
45 | #include "_scm.h" | |
46 | ||
47 | ||
48 | \f | |
49 | #define DIGITS '0':case '1':case '2':case '3':case '4':\ | |
50 | case '5':case '6':case '7':case '8':case '9' | |
51 | ||
52 | ||
53 | /* IS_INF tests its floating point number for infiniteness | |
54 | */ | |
55 | #ifndef IS_INF | |
56 | # define IS_INF(x) ((x)==(x)/2) | |
57 | #endif | |
58 | ||
59 | /* MAXEXP is the maximum double precision expontent | |
60 | * FLTMAX is less than or scm_equal the largest single precision float | |
61 | */ | |
62 | ||
63 | #ifdef SCM_FLOATS | |
64 | # ifdef STDC_HEADERS | |
65 | # ifndef GO32 | |
66 | # include <float.h> | |
67 | # endif /* ndef GO32 */ | |
68 | # endif /* def STDC_HEADERS */ | |
69 | # ifdef DBL_MAX_10_EXP | |
70 | # define MAXEXP DBL_MAX_10_EXP | |
71 | # else | |
72 | # define MAXEXP 308 /* IEEE doubles */ | |
73 | # endif /* def DBL_MAX_10_EXP */ | |
74 | # ifdef FLT_MAX | |
75 | # define FLTMAX FLT_MAX | |
76 | # else | |
77 | # define FLTMAX 1e+23 | |
78 | # endif /* def FLT_MAX */ | |
79 | #endif /* def SCM_FLOATS */ | |
80 | ||
81 | \f | |
82 | ||
83 | SCM_PROC(s_exact_p, "exact?", 1, 0, 0, scm_exact_p); | |
84 | #ifdef __STDC__ | |
85 | SCM | |
86 | scm_exact_p(SCM x) | |
87 | #else | |
88 | SCM | |
89 | scm_exact_p(x) | |
90 | SCM x; | |
91 | #endif | |
92 | { | |
93 | if SCM_INUMP(x) return SCM_BOOL_T; | |
94 | #ifdef SCM_BIGDIG | |
95 | if (SCM_NIMP(x) && SCM_BIGP(x)) return SCM_BOOL_T; | |
96 | #endif | |
97 | return SCM_BOOL_F; | |
98 | } | |
99 | ||
100 | SCM_PROC(s_odd_p, "odd?", 1, 0, 0, scm_odd_p); | |
101 | #ifdef __STDC__ | |
102 | SCM | |
103 | scm_odd_p(SCM n) | |
104 | #else | |
105 | SCM | |
106 | scm_odd_p(n) | |
107 | SCM n; | |
108 | #endif | |
109 | { | |
110 | #ifdef SCM_BIGDIG | |
111 | if SCM_NINUMP(n) { | |
112 | SCM_ASSERT(SCM_NIMP(n) && SCM_BIGP(n), n, SCM_ARG1, s_odd_p); | |
113 | return (1 & SCM_BDIGITS(n)[0]) ? SCM_BOOL_T : SCM_BOOL_F; | |
114 | } | |
115 | #else | |
116 | SCM_ASSERT(SCM_INUMP(n), n, SCM_ARG1, s_odd_p); | |
117 | #endif | |
118 | return (4 & (int)n) ? SCM_BOOL_T : SCM_BOOL_F; | |
119 | } | |
120 | ||
121 | SCM_PROC(s_even_p, "even?", 1, 0, 0, scm_even_p); | |
122 | #ifdef __STDC__ | |
123 | SCM | |
124 | scm_even_p(SCM n) | |
125 | #else | |
126 | SCM | |
127 | scm_even_p(n) | |
128 | SCM n; | |
129 | #endif | |
130 | { | |
131 | #ifdef SCM_BIGDIG | |
132 | if SCM_NINUMP(n) { | |
133 | SCM_ASSERT(SCM_NIMP(n) && SCM_BIGP(n), n, SCM_ARG1, s_even_p); | |
134 | return (1 & SCM_BDIGITS(n)[0]) ? SCM_BOOL_F : SCM_BOOL_T; | |
135 | } | |
136 | #else | |
137 | SCM_ASSERT(SCM_INUMP(n), n, SCM_ARG1, s_even_p); | |
138 | #endif | |
139 | return (4 & (int)n) ? SCM_BOOL_F : SCM_BOOL_T; | |
140 | } | |
141 | ||
142 | SCM_PROC(s_abs, "abs", 1, 0, 0, scm_abs); | |
143 | #ifdef __STDC__ | |
144 | SCM | |
145 | scm_abs(SCM x) | |
146 | #else | |
147 | SCM | |
148 | scm_abs(x) | |
149 | SCM x; | |
150 | #endif | |
151 | { | |
152 | #ifdef SCM_BIGDIG | |
153 | if SCM_NINUMP(x) { | |
154 | SCM_ASSERT(SCM_NIMP(x) && SCM_BIGP(x), x, SCM_ARG1, s_abs); | |
155 | if (SCM_TYP16(x)==scm_tc16_bigpos) return x; | |
156 | return scm_copybig(x, 0); | |
157 | } | |
158 | #else | |
159 | SCM_ASSERT(SCM_INUMP(x), x, SCM_ARG1, s_abs); | |
160 | #endif | |
161 | if (SCM_INUM(x) >= 0) return x; | |
162 | x = -SCM_INUM(x); | |
163 | if (!SCM_POSSCM_FIXABLE(x)) | |
164 | #ifdef SCM_BIGDIG | |
165 | return scm_long2big(x); | |
166 | #else | |
167 | scm_wta(SCM_MAKINUM(-x), (char *)SCM_OVSCM_FLOW, s_abs); | |
168 | #endif | |
169 | return SCM_MAKINUM(x); | |
170 | } | |
171 | ||
172 | SCM_PROC(s_quotient, "quotient", 2, 0, 0, scm_quotient); | |
173 | #ifdef __STDC__ | |
174 | SCM | |
175 | scm_quotient(SCM x, SCM y) | |
176 | #else | |
177 | SCM | |
178 | scm_quotient(x, y) | |
179 | SCM x; | |
180 | SCM y; | |
181 | #endif | |
182 | { | |
183 | register long z; | |
184 | #ifdef SCM_BIGDIG | |
185 | if SCM_NINUMP(x) { | |
186 | long w; | |
187 | SCM_ASSERT(SCM_NIMP(x) && SCM_BIGP(x), x, SCM_ARG1, s_quotient); | |
188 | if SCM_NINUMP(y) { | |
189 | SCM_ASRTGO(SCM_NIMP(y) && SCM_BIGP(y), bady); | |
190 | return scm_divbigbig(SCM_BDIGITS(x), | |
191 | SCM_NUMDIGS(x), | |
192 | SCM_BDIGITS(y), | |
193 | SCM_NUMDIGS(y), | |
194 | SCM_BIGSIGN(x) ^ SCM_BIGSIGN(y), | |
195 | 2); | |
196 | } | |
197 | z = SCM_INUM(y); | |
198 | SCM_ASRTGO(z, ov); | |
199 | if (1==z) return x; | |
200 | if (z < 0) z = -z; | |
201 | if (z < SCM_BIGRAD) { | |
202 | w = scm_copybig(x, SCM_BIGSIGN(x) ? (y>0) : (y<0)); | |
203 | scm_divbigdig(SCM_BDIGITS(w), SCM_NUMDIGS(w), (SCM_BIGDIG)z); | |
204 | return scm_normbig(w); | |
205 | } | |
206 | #ifndef SCM_DIGSTOOBIG | |
207 | w = scm_pseudolong(z); | |
208 | return scm_divbigbig(SCM_BDIGITS(x), SCM_NUMDIGS(x), (SCM_BIGDIG *)&w, SCM_DIGSPERLONG, | |
209 | SCM_BIGSIGN(x) ? (y>0) : (y<0), 2); | |
210 | #else | |
211 | { SCM_BIGDIG zdigs[SCM_DIGSPERLONG]; | |
212 | scm_longdigs(z, zdigs); | |
213 | return scm_divbigbig(SCM_BDIGITS(x), SCM_NUMDIGS(x), zdigs, SCM_DIGSPERLONG, | |
214 | SCM_BIGSIGN(x) ? (y>0) : (y<0), 2); | |
215 | } | |
216 | #endif | |
217 | } | |
218 | if SCM_NINUMP(y) { | |
219 | # ifndef RECKLESS | |
220 | if (!(SCM_NIMP(y) && SCM_BIGP(y))) | |
221 | bady: scm_wta(y, (char *)SCM_ARG2, s_quotient); | |
222 | # endif | |
223 | return SCM_INUM0; | |
224 | } | |
225 | #else | |
226 | SCM_ASSERT(SCM_INUMP(x), x, SCM_ARG1, s_quotient); | |
227 | SCM_ASSERT(SCM_INUMP(y), y, SCM_ARG2, s_quotient); | |
228 | #endif | |
229 | if ((z = SCM_INUM(y))==0) | |
230 | ov: scm_wta(y, (char *)SCM_OVSCM_FLOW, s_quotient); | |
231 | z = SCM_INUM(x)/z; | |
232 | #ifdef BADIVSGNS | |
233 | { | |
234 | #if (__TURBOC__==1) | |
235 | long t = ((y<0) ? -SCM_INUM(x) : SCM_INUM(x))%SCM_INUM(y); | |
236 | #else | |
237 | long t = SCM_INUM(x)%SCM_INUM(y); | |
238 | #endif | |
239 | if (t==0) ; | |
240 | else if (t < 0) | |
241 | if (x < 0) ; | |
242 | else z--; | |
243 | else if (x < 0) z++; | |
244 | } | |
245 | #endif | |
246 | if (!SCM_FIXABLE(z)) | |
247 | #ifdef SCM_BIGDIG | |
248 | return scm_long2big(z); | |
249 | #else | |
250 | scm_wta(x, (char *)SCM_OVSCM_FLOW, s_quotient); | |
251 | #endif | |
252 | return SCM_MAKINUM(z); | |
253 | } | |
254 | ||
255 | SCM_PROC(s_remainder, "remainder", 2, 0, 0, scm_remainder); | |
256 | #ifdef __STDC__ | |
257 | SCM | |
258 | scm_remainder(SCM x, SCM y) | |
259 | #else | |
260 | SCM | |
261 | scm_remainder(x, y) | |
262 | SCM x; | |
263 | SCM y; | |
264 | #endif | |
265 | { | |
266 | register long z; | |
267 | #ifdef SCM_BIGDIG | |
268 | if SCM_NINUMP(x) { | |
269 | SCM_ASSERT(SCM_NIMP(x) && SCM_BIGP(x), x, SCM_ARG1, s_remainder); | |
270 | if SCM_NINUMP(y) { | |
271 | SCM_ASRTGO(SCM_NIMP(y) && SCM_BIGP(y), bady); | |
272 | return scm_divbigbig(SCM_BDIGITS(x), SCM_NUMDIGS(x), SCM_BDIGITS(y), SCM_NUMDIGS(y), | |
273 | SCM_BIGSIGN(x), 0); | |
274 | } | |
275 | if (!(z = SCM_INUM(y))) goto ov; | |
276 | return scm_divbigint(x, z, SCM_BIGSIGN(x), 0); | |
277 | } | |
278 | if SCM_NINUMP(y) { | |
279 | # ifndef RECKLESS | |
280 | if (!(SCM_NIMP(y) && SCM_BIGP(y))) | |
281 | bady: scm_wta(y, (char *)SCM_ARG2, s_remainder); | |
282 | # endif | |
283 | return x; | |
284 | } | |
285 | #else | |
286 | SCM_ASSERT(SCM_INUMP(x), x, SCM_ARG1, s_remainder); | |
287 | SCM_ASSERT(SCM_INUMP(y), y, SCM_ARG2, s_remainder); | |
288 | #endif | |
289 | if (!(z = SCM_INUM(y))) | |
290 | ov: scm_wta(y, (char *)SCM_OVSCM_FLOW, s_remainder); | |
291 | #if (__TURBOC__==1) | |
292 | if (z < 0) z = -z; | |
293 | #endif | |
294 | z = SCM_INUM(x)%z; | |
295 | #ifdef BADIVSGNS | |
296 | if (!z) ; | |
297 | else if (z < 0) | |
298 | if (x < 0) ; | |
299 | else z += SCM_INUM(y); | |
300 | else if (x < 0) z -= SCM_INUM(y); | |
301 | #endif | |
302 | return SCM_MAKINUM(z); | |
303 | } | |
304 | ||
305 | SCM_PROC(s_modulo, "modulo", 2, 0, 0, scm_modulo); | |
306 | #ifdef __STDC__ | |
307 | SCM | |
308 | scm_modulo(SCM x, SCM y) | |
309 | #else | |
310 | SCM | |
311 | scm_modulo(x, y) | |
312 | SCM x; | |
313 | SCM y; | |
314 | #endif | |
315 | { | |
316 | register long yy, z; | |
317 | #ifdef SCM_BIGDIG | |
318 | if SCM_NINUMP(x) { | |
319 | SCM_ASSERT(SCM_NIMP(x) && SCM_BIGP(x), x, SCM_ARG1, s_modulo); | |
320 | if SCM_NINUMP(y) { | |
321 | SCM_ASRTGO(SCM_NIMP(y) && SCM_BIGP(y), bady); | |
322 | return scm_divbigbig(SCM_BDIGITS(x), SCM_NUMDIGS(x), SCM_BDIGITS(y), SCM_NUMDIGS(y), | |
323 | SCM_BIGSIGN(y), (SCM_BIGSIGN(x) ^ SCM_BIGSIGN(y)) ? 1 : 0); | |
324 | } | |
325 | if (!(z = SCM_INUM(y))) goto ov; | |
326 | return scm_divbigint(x, z, y < 0, (SCM_BIGSIGN(x) ? (y > 0) : (y < 0)) ? 1 : 0); | |
327 | } | |
328 | if SCM_NINUMP(y) { | |
329 | # ifndef RECKLESS | |
330 | if (!(SCM_NIMP(y) && SCM_BIGP(y))) | |
331 | bady: scm_wta(y, (char *)SCM_ARG2, s_modulo); | |
332 | # endif | |
333 | return (SCM_BIGSIGN(y) ? (x>0) : (x<0)) ? scm_sum(x, y) : x; | |
334 | } | |
335 | #else | |
336 | SCM_ASSERT(SCM_INUMP(x), x, SCM_ARG1, s_modulo); | |
337 | SCM_ASSERT(SCM_INUMP(y), y, SCM_ARG2, s_modulo); | |
338 | #endif | |
339 | if (!(yy = SCM_INUM(y))) | |
340 | ov: scm_wta(y, (char *)SCM_OVSCM_FLOW, s_modulo); | |
341 | #if (__TURBOC__==1) | |
342 | z = SCM_INUM(x); | |
343 | z = ((yy<0) ? -z : z)%yy; | |
344 | #else | |
345 | z = SCM_INUM(x)%yy; | |
346 | #endif | |
347 | return SCM_MAKINUM(((yy<0) ? (z>0) : (z<0)) ? z+yy : z); | |
348 | } | |
349 | ||
350 | SCM_PROC1 (s_gcd, "gcd", scm_tc7_asubr, scm_gcd); | |
351 | #ifdef __STDC__ | |
352 | SCM | |
353 | scm_gcd(SCM x, SCM y) | |
354 | #else | |
355 | SCM | |
356 | scm_gcd(x, y) | |
357 | SCM x; | |
358 | SCM y; | |
359 | #endif | |
360 | { | |
361 | register long u, v, k, t; | |
362 | if SCM_UNBNDP(y) return SCM_UNBNDP(x) ? SCM_INUM0 : x; | |
363 | tailrec: | |
364 | #ifdef SCM_BIGDIG | |
365 | if SCM_NINUMP(x) { | |
366 | big_gcd: | |
367 | SCM_ASSERT(SCM_NIMP(x) && SCM_BIGP(x), x, SCM_ARG1, s_gcd); | |
368 | if SCM_BIGSIGN(x) x = scm_copybig(x, 0); | |
369 | newy: | |
370 | if SCM_NINUMP(y) { | |
371 | SCM_ASSERT(SCM_NIMP(y) && SCM_BIGP(y), y, SCM_ARG2, s_gcd); | |
372 | if SCM_BIGSIGN(y) y = scm_copybig(y, 0); | |
373 | switch (scm_bigcomp(x, y)) { | |
374 | case -1: | |
375 | swaprec: t = scm_remainder(x, y); x = y; y = t; goto tailrec; | |
376 | case 0: return x; | |
377 | case 1: y = scm_remainder(y, x); goto newy; | |
378 | } | |
379 | /* instead of the switch, we could just return scm_gcd(y, scm_modulo(x, y)); */ | |
380 | } | |
381 | if (SCM_INUM0==y) return x; goto swaprec; | |
382 | } | |
383 | if SCM_NINUMP(y) { t=x; x=y; y=t; goto big_gcd;} | |
384 | #else | |
385 | SCM_ASSERT(SCM_INUMP(x), x, SCM_ARG1, s_gcd); | |
386 | SCM_ASSERT(SCM_INUMP(y), y, SCM_ARG2, s_gcd); | |
387 | #endif | |
388 | u = SCM_INUM(x); | |
389 | if (u<0) u = -u; | |
390 | v = SCM_INUM(y); | |
391 | if (v<0) v = -v; | |
392 | else if (0==v) goto getout; | |
393 | if (0==u) {u = v; goto getout;} | |
394 | for (k = 1;!(1 & ((int)u|(int)v));k <<= 1, u >>= 1, v >>= 1); | |
395 | if (1 & (int)u) t = -v; | |
396 | else { | |
397 | t = u; | |
398 | b3: | |
399 | t = SCM_SRS(t, 1); | |
400 | } | |
401 | if (!(1 & (int)t)) goto b3; | |
402 | if (t>0) u = t; | |
403 | else v = -t; | |
404 | if ((t = u-v)) goto b3; | |
405 | u = u*k; | |
406 | getout: | |
407 | if (!SCM_POSSCM_FIXABLE(u)) | |
408 | #ifdef SCM_BIGDIG | |
409 | return scm_long2big(u); | |
410 | #else | |
411 | scm_wta(x, (char *)SCM_OVSCM_FLOW, s_gcd); | |
412 | #endif | |
413 | return SCM_MAKINUM(u); | |
414 | } | |
415 | ||
416 | SCM_PROC1 (s_lcm, "lcm", scm_tc7_asubr, scm_lcm); | |
417 | #ifdef __STDC__ | |
418 | SCM | |
419 | scm_lcm(SCM n1, SCM n2) | |
420 | #else | |
421 | SCM | |
422 | scm_lcm(n1, n2) | |
423 | SCM n1; | |
424 | SCM n2; | |
425 | #endif | |
426 | { | |
427 | SCM d; | |
428 | if SCM_UNBNDP(n2) { | |
429 | n2 = SCM_MAKINUM(1L); | |
430 | if SCM_UNBNDP(n1) return n2; | |
431 | } | |
432 | d = scm_gcd(n1, n2); | |
433 | if (SCM_INUM0==d) return d; | |
434 | return scm_abs(scm_product(n1, scm_quotient(n2, d))); | |
435 | } | |
436 | ||
437 | #ifndef SCM_BIGDIG | |
438 | # ifndef SCM_FLOATS | |
439 | # define scm_long2num SCM_MAKINUM | |
440 | # endif | |
441 | #endif | |
442 | ||
443 | #ifndef scm_long2num | |
444 | SCM_PROC1 (s_logand, "logand", scm_tc7_asubr, scm_logand); | |
445 | #ifdef __STDC__ | |
446 | SCM | |
447 | scm_logand(SCM n1, SCM n2) | |
448 | #else | |
449 | SCM | |
450 | scm_logand(n1, n2) | |
451 | SCM n1; | |
452 | SCM n2; | |
453 | #endif | |
454 | { | |
455 | return scm_long2num(scm_num2long(n1, (char *)SCM_ARG1, s_logand) | |
456 | & scm_num2long(n2, (char *)SCM_ARG2, s_logand)); | |
457 | } | |
458 | ||
459 | SCM_PROC1 (s_logior, "logior", scm_tc7_asubr, scm_logior); | |
460 | #ifdef __STDC__ | |
461 | SCM | |
462 | scm_logior(SCM n1, SCM n2) | |
463 | #else | |
464 | SCM | |
465 | scm_logior(n1, n2) | |
466 | SCM n1; | |
467 | SCM n2; | |
468 | #endif | |
469 | { | |
470 | return scm_long2num(scm_num2long(n1, (char *)SCM_ARG1, s_logior) | |
471 | | scm_num2long(n2, (char *)SCM_ARG2, s_logior)); | |
472 | } | |
473 | ||
474 | SCM_PROC1 (s_logxor, "logxor", scm_tc7_asubr, scm_logxor); | |
475 | #ifdef __STDC__ | |
476 | SCM | |
477 | scm_logxor(SCM n1, SCM n2) | |
478 | #else | |
479 | SCM | |
480 | scm_logxor(n1, n2) | |
481 | SCM n1; | |
482 | SCM n2; | |
483 | #endif | |
484 | { | |
485 | return scm_long2num(scm_num2long(n1, (char *)SCM_ARG1, s_logxor) | |
486 | ^ scm_num2long(n2, (char *)SCM_ARG2, s_logxor)); | |
487 | } | |
488 | ||
489 | SCM_PROC(s_logtest, "logtest", 2, 0, 0, scm_logtest); | |
490 | #ifdef __STDC__ | |
491 | SCM | |
492 | scm_logtest(SCM n1, SCM n2) | |
493 | #else | |
494 | SCM | |
495 | scm_logtest(n1, n2) | |
496 | SCM n1; | |
497 | SCM n2; | |
498 | #endif | |
499 | { | |
500 | return ((scm_num2long (n1, (char *)SCM_ARG1, s_logtest) | |
501 | & scm_num2long (n2, (char *)SCM_ARG2, s_logtest)) | |
502 | ? SCM_BOOL_T : SCM_BOOL_F); | |
503 | } | |
504 | ||
505 | ||
506 | SCM_PROC(s_logbit_p, "logbit?", 2, 0, 0, scm_logbit_p); | |
507 | #ifdef __STDC__ | |
508 | SCM | |
509 | scm_logbit_p(SCM n1, SCM n2) | |
510 | #else | |
511 | SCM | |
512 | scm_logbit_p(n1, n2) | |
513 | SCM n1; | |
514 | SCM n2; | |
515 | #endif | |
516 | { | |
517 | return (((1 << scm_num2long (n1, (char *)SCM_ARG1, s_logtest)) | |
518 | & scm_num2long (n2, (char *)SCM_ARG2, s_logtest)) | |
519 | ? SCM_BOOL_T : SCM_BOOL_F); | |
520 | } | |
521 | ||
522 | #else | |
523 | ||
524 | SCM_PROC1 (s_logand, "logand", scm_tc7_asubr, scm_logand); | |
525 | #ifdef __STDC__ | |
526 | SCM | |
527 | scm_logand(SCM n1, SCM n2) | |
528 | #else | |
529 | SCM | |
530 | scm_logand(n1, n2) | |
531 | SCM n1; | |
532 | SCM n2; | |
533 | #endif | |
534 | { | |
535 | SCM_ASSERT(SCM_INUMP(n1), n1, SCM_ARG1, s_logand); | |
536 | SCM_ASSERT(SCM_INUMP(n2), n2, SCM_ARG2, s_logand); | |
537 | return SCM_MAKINUM(SCM_INUM(n1) & SCM_INUM(n2)); | |
538 | } | |
539 | ||
540 | SCM_PROC1 (s_logior, "logior", scm_tc7_asubr, scm_logior); | |
541 | #ifdef __STDC__ | |
542 | SCM | |
543 | scm_logior(SCM n1, SCM n2) | |
544 | #else | |
545 | SCM | |
546 | scm_logior(n1, n2) | |
547 | SCM n1; | |
548 | SCM n2; | |
549 | #endif | |
550 | { | |
551 | SCM_ASSERT(SCM_INUMP(n1), n1, SCM_ARG1, s_logior); | |
552 | SCM_ASSERT(SCM_INUMP(n2), n2, SCM_ARG2, s_logior); | |
553 | return SCM_MAKINUM(SCM_INUM(n1) | SCM_INUM(n2)); | |
554 | } | |
555 | ||
556 | SCM_PROC1 (s_logxor, "logxor", scm_tc7_asubr, scm_logxor); | |
557 | #ifdef __STDC__ | |
558 | SCM | |
559 | scm_logxor(SCM n1, SCM n2) | |
560 | #else | |
561 | SCM | |
562 | scm_logxor(n1, n2) | |
563 | SCM n1; | |
564 | SCM n2; | |
565 | #endif | |
566 | { | |
567 | SCM_ASSERT(SCM_INUMP(n1), n1, SCM_ARG1, s_logxor); | |
568 | SCM_ASSERT(SCM_INUMP(n2), n2, SCM_ARG2, s_logxor); | |
569 | return SCM_MAKINUM(SCM_INUM(n1) ^ SCM_INUM(n2)); | |
570 | } | |
571 | ||
572 | SCM_PROC(s_logtest, "logtest", 2, 0, 0, scm_logtest); | |
573 | #ifdef __STDC__ | |
574 | SCM | |
575 | scm_logtest(SCM n1, SCM n2) | |
576 | #else | |
577 | SCM | |
578 | scm_logtest(n1, n2) | |
579 | SCM n1; | |
580 | SCM n2; | |
581 | #endif | |
582 | { | |
583 | SCM_ASSERT(SCM_INUMP(n1), n1, SCM_ARG1, s_logtest); | |
584 | SCM_ASSERT(SCM_INUMP(n2), n2, SCM_ARG2, s_logtest); | |
585 | return (SCM_INUM(n1) & SCM_INUM(n2)) ? SCM_BOOL_T : SCM_BOOL_F; | |
586 | } | |
587 | ||
588 | SCM_PROC(s_logbit_p, "logbit?", 2, 0, 0, scm_logbit_p); | |
589 | #ifdef __STDC__ | |
590 | SCM | |
591 | scm_logbit_p(SCM n1, SCM n2) | |
592 | #else | |
593 | SCM | |
594 | scm_logbit_p(n1, n2) | |
595 | SCM n1; | |
596 | SCM n2; | |
597 | #endif | |
598 | { | |
599 | SCM_ASSERT(SCM_INUMP(n1) && SCM_INUM(n1) >= 0, n1, SCM_ARG1, s_logbit_p); | |
600 | SCM_ASSERT(SCM_INUMP(n2), n2, SCM_ARG2, s_logbit_p); | |
601 | return ((1 << SCM_INUM(n1)) & SCM_INUM(n2)) ? SCM_BOOL_T : SCM_BOOL_F; | |
602 | } | |
603 | #endif | |
604 | ||
605 | SCM_PROC(s_lognot, "lognot", 1, 0, 0, scm_lognot); | |
606 | #ifdef __STDC__ | |
607 | SCM | |
608 | scm_lognot(SCM n) | |
609 | #else | |
610 | SCM | |
611 | scm_lognot(n) | |
612 | SCM n; | |
613 | #endif | |
614 | { | |
615 | SCM_ASSERT(SCM_INUMP(n), n, SCM_ARG1, s_lognot); | |
616 | return scm_difference(SCM_MAKINUM(-1L), n); | |
617 | } | |
618 | ||
619 | SCM_PROC(s_integer_expt, "integer-expt", 2, 0, 0, scm_integer_expt); | |
620 | #ifdef __STDC__ | |
621 | SCM | |
622 | scm_integer_expt(SCM z1, SCM z2) | |
623 | #else | |
624 | SCM | |
625 | scm_integer_expt(z1, z2) | |
626 | SCM z1; | |
627 | SCM z2; | |
628 | #endif | |
629 | { | |
630 | SCM acc = SCM_MAKINUM(1L); | |
631 | #ifdef SCM_BIGDIG | |
632 | if (SCM_INUM0==z1 || acc==z1) return z1; | |
633 | else if (SCM_MAKINUM(-1L)==z1) return SCM_BOOL_F==scm_even_p(z2)?z1:acc; | |
634 | #endif | |
635 | SCM_ASSERT(SCM_INUMP(z2), z2, SCM_ARG2, s_integer_expt); | |
636 | z2 = SCM_INUM(z2); | |
637 | if (z2 < 0) { | |
638 | z2 = -z2; | |
639 | z1 = scm_divide(z1, SCM_UNDEFINED); | |
640 | } | |
641 | while(1) { | |
642 | if (0==z2) return acc; | |
643 | if (1==z2) return scm_product(acc, z1); | |
644 | if (z2 & 1) acc = scm_product(acc, z1); | |
645 | z1 = scm_product(z1, z1); | |
646 | z2 >>= 1; | |
647 | } | |
648 | } | |
649 | ||
650 | SCM_PROC(s_ash, "ash", 2, 0, 0, scm_ash); | |
651 | #ifdef __STDC__ | |
652 | SCM | |
653 | scm_ash(SCM n, SCM cnt) | |
654 | #else | |
655 | SCM | |
656 | scm_ash(n, cnt) | |
657 | SCM n; | |
658 | SCM cnt; | |
659 | #endif | |
660 | { | |
661 | SCM res = SCM_INUM(n); | |
662 | SCM_ASSERT(SCM_INUMP(cnt), cnt, SCM_ARG2, s_ash); | |
663 | #ifdef SCM_BIGDIG | |
664 | if(cnt < 0) { | |
665 | res = scm_integer_expt(SCM_MAKINUM(2), SCM_MAKINUM(-SCM_INUM(cnt))); | |
666 | if (SCM_NFALSEP(scm_negative_p(n))) | |
667 | return scm_sum(SCM_MAKINUM(-1L), scm_quotient(scm_sum(SCM_MAKINUM(1L), n), res)); | |
668 | else return scm_quotient(n, res); | |
669 | } | |
670 | else return scm_product(n, scm_integer_expt(SCM_MAKINUM(2), cnt)); | |
671 | #else | |
672 | SCM_ASSERT(SCM_INUMP(n), n, SCM_ARG1, s_ash); | |
673 | cnt = SCM_INUM(cnt); | |
674 | if (cnt < 0) return SCM_MAKINUM(SCM_SRS(res, -cnt)); | |
675 | res = SCM_MAKINUM(res<<cnt); | |
676 | if (SCM_INUM(res)>>cnt != SCM_INUM(n)) scm_wta(n, (char *)SCM_OVSCM_FLOW, s_ash); | |
677 | return res; | |
678 | #endif | |
679 | } | |
680 | ||
681 | SCM_PROC(s_bit_extract, "bit-extract", 3, 0, 0, scm_bit_extract); | |
682 | #ifdef __STDC__ | |
683 | SCM | |
684 | scm_bit_extract(SCM n, SCM start, SCM end) | |
685 | #else | |
686 | SCM | |
687 | scm_bit_extract(n, start, end) | |
688 | SCM n; | |
689 | SCM start; | |
690 | SCM end; | |
691 | #endif | |
692 | { | |
693 | SCM_ASSERT(SCM_INUMP(start), start, SCM_ARG2, s_bit_extract); | |
694 | SCM_ASSERT(SCM_INUMP(end), end, SCM_ARG3, s_bit_extract); | |
695 | start = SCM_INUM(start); end = SCM_INUM(end); | |
696 | SCM_ASSERT(end >= start, SCM_MAKINUM(end), SCM_OUTOFRANGE, s_bit_extract); | |
697 | #ifdef SCM_BIGDIG | |
698 | if SCM_NINUMP(n) | |
699 | return | |
700 | scm_logand(scm_difference(scm_integer_expt(SCM_MAKINUM(2), SCM_MAKINUM(end - start)), | |
701 | SCM_MAKINUM(1L)), | |
702 | scm_ash(n, SCM_MAKINUM(-start))); | |
703 | #else | |
704 | SCM_ASSERT(SCM_INUMP(n), n, SCM_ARG1, s_bit_extract); | |
705 | #endif | |
706 | return SCM_MAKINUM((SCM_INUM(n)>>start) & ((1L<<(end-start))-1)); | |
707 | } | |
708 | ||
709 | char scm_logtab[] = {0, 1, 1, 2, 1, 2, 2, 3, 1, 2, 2, 3, 2, 3, 3, 4}; | |
710 | SCM_PROC(s_logcount, "logcount", 1, 0, 0, scm_logcount); | |
711 | #ifdef __STDC__ | |
712 | SCM | |
713 | scm_logcount (SCM n) | |
714 | #else | |
715 | SCM | |
716 | scm_logcount(n) | |
717 | SCM n; | |
718 | #endif | |
719 | { | |
720 | register unsigned long c = 0; | |
721 | register long nn; | |
722 | #ifdef SCM_BIGDIG | |
723 | if SCM_NINUMP(n) { | |
724 | scm_sizet i; SCM_BIGDIG *ds, d; | |
725 | SCM_ASSERT(SCM_NIMP(n) && SCM_BIGP(n), n, SCM_ARG1, s_logcount); | |
726 | if SCM_BIGSIGN(n) return scm_logcount(scm_difference(SCM_MAKINUM(-1L), n)); | |
727 | ds = SCM_BDIGITS(n); | |
728 | for(i = SCM_NUMDIGS(n); i--; ) | |
729 | for(d = ds[i]; d; d >>= 4) c += scm_logtab[15 & d]; | |
730 | return SCM_MAKINUM(c); | |
731 | } | |
732 | #else | |
733 | SCM_ASSERT(SCM_INUMP(n), n, SCM_ARG1, s_logcount); | |
734 | #endif | |
735 | if ((nn = SCM_INUM(n)) < 0) nn = -1 - nn; | |
736 | for(; nn; nn >>= 4) c += scm_logtab[15 & nn]; | |
737 | return SCM_MAKINUM(c); | |
738 | } | |
739 | ||
740 | char scm_ilentab[] = {0, 1, 2, 2, 3, 3, 3, 3, 4, 4, 4, 4, 4, 4, 4, 4}; | |
741 | SCM_PROC(s_integer_length, "integer-length", 1, 0, 0, scm_integer_length); | |
742 | #ifdef __STDC__ | |
743 | SCM | |
744 | scm_integer_length(SCM n) | |
745 | #else | |
746 | SCM | |
747 | scm_integer_length(n) | |
748 | SCM n; | |
749 | #endif | |
750 | { | |
751 | register unsigned long c = 0; | |
752 | register long nn; | |
753 | unsigned int l = 4; | |
754 | #ifdef SCM_BIGDIG | |
755 | if SCM_NINUMP(n) { | |
756 | SCM_BIGDIG *ds, d; | |
757 | SCM_ASSERT(SCM_NIMP(n) && SCM_BIGP(n), n, SCM_ARG1, s_integer_length); | |
758 | if SCM_BIGSIGN(n) return scm_integer_length(scm_difference(SCM_MAKINUM(-1L), n)); | |
759 | ds = SCM_BDIGITS(n); | |
760 | d = ds[c = SCM_NUMDIGS(n)-1]; | |
761 | for(c *= SCM_BITSPERDIG; d; d >>= 4) {c += 4; l = scm_ilentab[15 & d];} | |
762 | return SCM_MAKINUM(c - 4 + l); | |
763 | } | |
764 | #else | |
765 | SCM_ASSERT(SCM_INUMP(n), n, SCM_ARG1, s_integer_length); | |
766 | #endif | |
767 | if ((nn = SCM_INUM(n)) < 0) nn = -1 - nn; | |
768 | for(;nn; nn >>= 4) {c += 4; l = scm_ilentab[15 & nn];} | |
769 | return SCM_MAKINUM(c - 4 + l); | |
770 | } | |
771 | ||
772 | ||
773 | #ifdef SCM_BIGDIG | |
774 | char s_bignum[] = "bignum"; | |
775 | #ifdef __STDC__ | |
776 | SCM | |
777 | scm_mkbig(scm_sizet nlen, int sign) | |
778 | #else | |
779 | SCM | |
780 | scm_mkbig(nlen, sign) | |
781 | scm_sizet nlen; | |
782 | int sign; | |
783 | #endif | |
784 | { | |
785 | SCM v = nlen; | |
786 | if (((v << 16) >> 16) != nlen) | |
787 | scm_wta(SCM_MAKINUM(nlen), (char *)SCM_NALLOC, s_bignum); | |
788 | SCM_NEWCELL(v); | |
789 | SCM_DEFER_INTS; | |
790 | SCM_SETCHARS(v, scm_must_malloc((long)(nlen*sizeof(SCM_BIGDIG)), s_bignum)); | |
791 | SCM_SETNUMDIGS(v, nlen, sign?scm_tc16_bigneg:scm_tc16_bigpos); | |
792 | SCM_ALLOW_INTS; | |
793 | return v; | |
794 | } | |
795 | ||
796 | #ifdef __STDC__ | |
797 | SCM | |
798 | scm_big2inum(SCM b, scm_sizet l) | |
799 | #else | |
800 | SCM | |
801 | scm_big2inum(b, l) | |
802 | SCM b; | |
803 | scm_sizet l; | |
804 | #endif | |
805 | { | |
806 | unsigned long num = 0; | |
807 | SCM_BIGDIG *tmp = SCM_BDIGITS(b); | |
808 | while (l--) num = SCM_BIGUP(num) + tmp[l]; | |
809 | if (SCM_TYP16(b)==scm_tc16_bigpos) { | |
810 | if SCM_POSSCM_FIXABLE(num) return SCM_MAKINUM(num); | |
811 | } | |
812 | else if SCM_UNEGSCM_FIXABLE(num) return SCM_MAKINUM(-num); | |
813 | return b; | |
814 | } | |
815 | ||
816 | ||
817 | char s_adjbig[] = "scm_adjbig"; | |
818 | #ifdef __STDC__ | |
819 | SCM | |
820 | scm_adjbig(SCM b, scm_sizet nlen) | |
821 | #else | |
822 | SCM | |
823 | scm_adjbig(b, nlen) | |
824 | SCM b; | |
825 | scm_sizet nlen; | |
826 | #endif | |
827 | { | |
828 | long nsiz = nlen; | |
829 | if (((nsiz << 16) >> 16) != nlen) scm_wta(SCM_MAKINUM(nsiz), (char *)SCM_NALLOC, s_adjbig); | |
830 | SCM_DEFER_INTS; | |
831 | SCM_SETCHARS(b, (SCM_BIGDIG *)scm_must_realloc((char *)SCM_CHARS(b), | |
832 | (long)(SCM_NUMDIGS(b)*sizeof(SCM_BIGDIG)), | |
833 | (long)(nsiz*sizeof(SCM_BIGDIG)), s_adjbig)); | |
834 | SCM_SETNUMDIGS(b, nsiz, SCM_TYP16(b)); | |
835 | SCM_ALLOW_INTS; | |
836 | return b; | |
837 | } | |
838 | ||
839 | ||
840 | #ifdef __STDC__ | |
841 | SCM | |
842 | scm_normbig(SCM b) | |
843 | #else | |
844 | SCM | |
845 | scm_normbig(b) | |
846 | SCM b; | |
847 | #endif | |
848 | { | |
849 | #ifndef _UNICOS | |
850 | scm_sizet nlen = SCM_NUMDIGS(b); | |
851 | #else | |
852 | int nlen = SCM_NUMDIGS(b); /* unsigned nlen breaks on Cray when nlen => 0 */ | |
853 | #endif | |
854 | SCM_BIGDIG *zds = SCM_BDIGITS(b); | |
855 | while (nlen-- && !zds[nlen]); nlen++; | |
856 | if (nlen * SCM_BITSPERDIG/SCM_CHAR_BIT <= sizeof(SCM)) | |
857 | if SCM_INUMP(b = scm_big2inum(b, (scm_sizet)nlen)) return b; | |
858 | if (SCM_NUMDIGS(b)==nlen) return b; | |
859 | return scm_adjbig(b, (scm_sizet)nlen); | |
860 | } | |
861 | ||
862 | ||
863 | #ifdef __STDC__ | |
864 | SCM | |
865 | scm_copybig(SCM b, int sign) | |
866 | #else | |
867 | SCM | |
868 | scm_copybig(b, sign) | |
869 | SCM b; | |
870 | int sign; | |
871 | #endif | |
872 | { | |
873 | scm_sizet i = SCM_NUMDIGS(b); | |
874 | SCM ans = scm_mkbig(i, sign); | |
875 | SCM_BIGDIG *src = SCM_BDIGITS(b), *dst = SCM_BDIGITS(ans); | |
876 | while (i--) dst[i] = src[i]; | |
877 | return ans; | |
878 | } | |
879 | ||
880 | ||
881 | #ifdef __STDC__ | |
882 | SCM | |
883 | scm_long2big(long n) | |
884 | #else | |
885 | SCM | |
886 | scm_long2big(n) | |
887 | long n; | |
888 | #endif | |
889 | { | |
890 | scm_sizet i = 0; | |
891 | SCM_BIGDIG *digits; | |
892 | SCM ans = scm_mkbig(SCM_DIGSPERLONG, n<0); | |
893 | digits = SCM_BDIGITS(ans); | |
894 | if (n < 0) n = -n; | |
895 | while (i < SCM_DIGSPERLONG) { | |
896 | digits[i++] = SCM_BIGLO(n); | |
897 | n = SCM_BIGDN((unsigned long)n); | |
898 | } | |
899 | return ans; | |
900 | } | |
901 | ||
902 | #ifdef LONGLONGS | |
903 | #ifdef __STDC__ | |
904 | SCM | |
905 | scm_long_long2big(long_long n) | |
906 | #else | |
907 | SCM | |
908 | scm_long_long2big(n) | |
909 | long_long n; | |
910 | #endif | |
911 | { | |
912 | scm_sizet i; | |
913 | SCM_BIGDIG *digits; | |
914 | SCM ans; | |
915 | int n_digits; | |
916 | ||
917 | { | |
918 | long tn; | |
919 | tn = (long) n; | |
920 | if ((long long)tn == n) | |
921 | return scm_long2big (tn); | |
922 | } | |
923 | ||
924 | { | |
925 | long_long tn; | |
926 | ||
927 | for (tn = n, n_digits = 0; | |
928 | tn; | |
929 | ++n_digits, tn = SCM_BIGDN ((ulong_long)tn)) | |
930 | ; | |
931 | } | |
932 | ||
933 | i = 0; | |
934 | ans = scm_mkbig(n_digits, n<0); | |
935 | digits = SCM_BDIGITS(ans); | |
936 | if (n < 0) | |
937 | n = -n; | |
938 | while (i < n_digits) { | |
939 | digits[i++] = SCM_BIGLO(n); | |
940 | n = SCM_BIGDN((ulong_long)n); | |
941 | } | |
942 | return ans; | |
943 | } | |
944 | #endif | |
945 | ||
946 | #ifdef __STDC__ | |
947 | SCM | |
948 | scm_2ulong2big(unsigned long * np) | |
949 | #else | |
950 | SCM | |
951 | scm_2ulong2big(np) | |
952 | unsigned long * np; | |
953 | #endif | |
954 | { | |
955 | unsigned long n; | |
956 | scm_sizet i; | |
957 | SCM_BIGDIG *digits; | |
958 | SCM ans; | |
959 | ||
960 | ans = scm_mkbig(2 * SCM_DIGSPERLONG, 0); | |
961 | digits = SCM_BDIGITS(ans); | |
962 | ||
963 | n = np[0]; | |
964 | for (i = 0; i < SCM_DIGSPERLONG; ++i) | |
965 | { | |
966 | digits[i] = SCM_BIGLO(n); | |
967 | n = SCM_BIGDN((unsigned long)n); | |
968 | } | |
969 | n = np[1]; | |
970 | for (i = 0; i < SCM_DIGSPERLONG; ++i) | |
971 | { | |
972 | digits[i + SCM_DIGSPERLONG] = SCM_BIGLO(n); | |
973 | n = SCM_BIGDN((unsigned long)n); | |
974 | } | |
975 | return ans; | |
976 | } | |
977 | ||
978 | ||
979 | #ifdef __STDC__ | |
980 | SCM | |
981 | scm_ulong2big(unsigned long n) | |
982 | #else | |
983 | SCM | |
984 | scm_ulong2big(n) | |
985 | unsigned long n; | |
986 | #endif | |
987 | { | |
988 | scm_sizet i = 0; | |
989 | SCM_BIGDIG *digits; | |
990 | SCM ans = scm_mkbig(SCM_DIGSPERLONG, 0); | |
991 | digits = SCM_BDIGITS(ans); | |
992 | while (i < SCM_DIGSPERLONG) { | |
993 | digits[i++] = SCM_BIGLO(n); | |
994 | n = SCM_BIGDN(n); | |
995 | } | |
996 | return ans; | |
997 | } | |
998 | ||
999 | ||
1000 | #ifdef __STDC__ | |
1001 | int | |
1002 | scm_bigcomp(SCM x, SCM y) | |
1003 | #else | |
1004 | int | |
1005 | scm_bigcomp(x, y) | |
1006 | SCM x; | |
1007 | SCM y; | |
1008 | #endif | |
1009 | { | |
1010 | int xsign = SCM_BIGSIGN(x); | |
1011 | int ysign = SCM_BIGSIGN(y); | |
1012 | scm_sizet xlen, ylen; | |
1013 | if (ysign < xsign) return 1; | |
1014 | if (ysign > xsign) return -1; | |
1015 | if ((ylen = SCM_NUMDIGS(y)) > (xlen = SCM_NUMDIGS(x))) return (xsign) ? -1 : 1; | |
1016 | if (ylen < xlen) return (xsign) ? 1 : -1; | |
1017 | while(xlen-- && (SCM_BDIGITS(y)[xlen]==SCM_BDIGITS(x)[xlen])); | |
1018 | if (-1==xlen) return 0; | |
1019 | return (SCM_BDIGITS(y)[xlen] > SCM_BDIGITS(x)[xlen]) ? | |
1020 | (xsign ? -1 : 1) : (xsign ? 1 : -1); | |
1021 | } | |
1022 | ||
1023 | #ifndef SCM_DIGSTOOBIG | |
1024 | ||
1025 | #ifdef __STDC__ | |
1026 | long | |
1027 | scm_pseudolong(long x) | |
1028 | #else | |
1029 | long | |
1030 | scm_pseudolong(x) | |
1031 | long x; | |
1032 | #endif | |
1033 | { | |
1034 | union { | |
1035 | long l; | |
1036 | SCM_BIGDIG bd[SCM_DIGSPERLONG]; | |
1037 | } p; | |
1038 | scm_sizet i = 0; | |
1039 | if (x < 0) x = -x; | |
1040 | while (i < SCM_DIGSPERLONG) {p.bd[i++] = SCM_BIGLO(x); x = SCM_BIGDN(x);} | |
1041 | /* p.bd[0] = SCM_BIGLO(x); p.bd[1] = SCM_BIGDN(x); */ | |
1042 | return p.l; | |
1043 | } | |
1044 | ||
1045 | #else | |
1046 | ||
1047 | #ifdef __STDC__ | |
1048 | void | |
1049 | scm_longdigs(long x, SCM_BIGDIG digs[]) | |
1050 | #else | |
1051 | void | |
1052 | scm_longdigs(x, digs) | |
1053 | long x; | |
1054 | SCM_BIGDIG digs[]; | |
1055 | #endif | |
1056 | { | |
1057 | scm_sizet i = 0; | |
1058 | if (x < 0) x = -x; | |
1059 | while (i < SCM_DIGSPERLONG) {digs[i++] = SCM_BIGLO(x); x = SCM_BIGDN(x);} | |
1060 | } | |
1061 | #endif | |
1062 | ||
1063 | ||
1064 | #ifdef __STDC__ | |
1065 | SCM | |
1066 | scm_addbig(SCM_BIGDIG *x, scm_sizet nx, int xsgn, SCM bigy, int sgny) | |
1067 | #else | |
1068 | SCM | |
1069 | scm_addbig(x, nx, xsgn, bigy, sgny) | |
1070 | SCM_BIGDIG *x; | |
1071 | scm_sizet nx; | |
1072 | int xsgn; | |
1073 | SCM bigy; | |
1074 | int sgny; | |
1075 | #endif | |
1076 | { | |
1077 | /* Assumes nx <= SCM_NUMDIGS(bigy) */ | |
1078 | /* Assumes xsgn and sgny scm_equal either 0 or 0x0100 */ | |
1079 | long num = 0; | |
1080 | scm_sizet i = 0, ny = SCM_NUMDIGS(bigy); | |
1081 | SCM z = scm_copybig(bigy, SCM_BIGSIGN(bigy) ^ sgny); | |
1082 | SCM_BIGDIG *zds = SCM_BDIGITS(z); | |
1083 | if (xsgn ^ SCM_BIGSIGN(z)) { | |
1084 | do { | |
1085 | num += (long) zds[i] - x[i]; | |
1086 | if (num < 0) {zds[i] = num + SCM_BIGRAD; num = -1;} | |
1087 | else {zds[i] = SCM_BIGLO(num); num = 0;} | |
1088 | } while (++i < nx); | |
1089 | if (num && nx==ny) { | |
1090 | num = 1; i = 0; | |
1091 | SCM_CAR(z) ^= 0x0100; | |
1092 | do { | |
1093 | num += (SCM_BIGRAD-1) - zds[i]; | |
1094 | zds[i++] = SCM_BIGLO(num); | |
1095 | num = SCM_BIGDN(num); | |
1096 | } while (i < ny); | |
1097 | } | |
1098 | else while (i < ny) { | |
1099 | num += zds[i]; | |
1100 | if (num < 0) {zds[i++] = num + SCM_BIGRAD; num = -1;} | |
1101 | else {zds[i++] = SCM_BIGLO(num); num = 0;} | |
1102 | } | |
1103 | } else { | |
1104 | do { | |
1105 | num += (long) zds[i] + x[i]; | |
1106 | zds[i++] = SCM_BIGLO(num); | |
1107 | num = SCM_BIGDN(num); | |
1108 | } while (i < nx); | |
1109 | if (!num) return z; | |
1110 | while (i < ny) { | |
1111 | num += zds[i]; | |
1112 | zds[i++] = SCM_BIGLO(num); | |
1113 | num = SCM_BIGDN(num); | |
1114 | if (!num) return z; | |
1115 | } | |
1116 | if (num) {z = scm_adjbig(z, ny+1); SCM_BDIGITS(z)[ny] = num; return z;} | |
1117 | } | |
1118 | return scm_normbig(z); | |
1119 | } | |
1120 | ||
1121 | #ifdef __STDC__ | |
1122 | SCM | |
1123 | scm_mulbig(SCM_BIGDIG *x, scm_sizet nx, SCM_BIGDIG *y, scm_sizet ny, int sgn) | |
1124 | #else | |
1125 | SCM | |
1126 | scm_mulbig(x, nx, y, ny, sgn) | |
1127 | SCM_BIGDIG *x; | |
1128 | scm_sizet nx; | |
1129 | SCM_BIGDIG *y; | |
1130 | scm_sizet ny; | |
1131 | int sgn; | |
1132 | #endif | |
1133 | { | |
1134 | scm_sizet i = 0, j = nx + ny; | |
1135 | unsigned long n = 0; | |
1136 | SCM z = scm_mkbig(j, sgn); | |
1137 | SCM_BIGDIG *zds = SCM_BDIGITS(z); | |
1138 | while (j--) zds[j] = 0; | |
1139 | do { | |
1140 | j = 0; | |
1141 | if (x[i]) { | |
1142 | do { | |
1143 | n += zds[i + j] + ((unsigned long) x[i] * y[j]); | |
1144 | zds[i + j++] = SCM_BIGLO(n); | |
1145 | n = SCM_BIGDN(n); | |
1146 | } while (j < ny); | |
1147 | if (n) {zds[i + j] = n; n = 0;} | |
1148 | } | |
1149 | } while (++i < nx); | |
1150 | return scm_normbig(z); | |
1151 | } | |
1152 | ||
1153 | #ifdef __STDC__ | |
1154 | unsigned int | |
1155 | scm_divbigdig(SCM_BIGDIG *ds, scm_sizet h, SCM_BIGDIG div) | |
1156 | #else | |
1157 | unsigned int | |
1158 | scm_divbigdig(ds, h, div) | |
1159 | SCM_BIGDIG *ds; | |
1160 | scm_sizet h; | |
1161 | SCM_BIGDIG div; | |
1162 | #endif | |
1163 | { | |
1164 | register unsigned long t2 = 0; | |
1165 | while(h--) { | |
1166 | t2 = SCM_BIGUP(t2) + ds[h]; | |
1167 | ds[h] = t2 / div; | |
1168 | t2 %= div; | |
1169 | } | |
1170 | return t2; | |
1171 | } | |
1172 | ||
1173 | ||
1174 | #ifdef __STDC__ | |
1175 | SCM | |
1176 | scm_divbigint(SCM x, long z, int sgn, int mode) | |
1177 | #else | |
1178 | SCM | |
1179 | scm_divbigint(x, z, sgn, mode) | |
1180 | SCM x; | |
1181 | long z; | |
1182 | int sgn; | |
1183 | int mode; | |
1184 | #endif | |
1185 | { | |
1186 | if (z < 0) z = -z; | |
1187 | if (z < SCM_BIGRAD) { | |
1188 | register unsigned long t2 = 0; | |
1189 | register SCM_BIGDIG *ds = SCM_BDIGITS(x); | |
1190 | scm_sizet nd = SCM_NUMDIGS(x); | |
1191 | while(nd--) t2 = (SCM_BIGUP(t2) + ds[nd]) % z; | |
1192 | if (mode) t2 = z - t2; | |
1193 | return SCM_MAKINUM(sgn ? -t2 : t2); | |
1194 | } | |
1195 | { | |
1196 | #ifndef SCM_DIGSTOOBIG | |
1197 | unsigned long t2 = scm_pseudolong(z); | |
1198 | return scm_divbigbig(SCM_BDIGITS(x), SCM_NUMDIGS(x), (SCM_BIGDIG *)&t2, | |
1199 | SCM_DIGSPERLONG, sgn, mode); | |
1200 | #else | |
1201 | SCM_BIGDIG t2[SCM_DIGSPERLONG]; | |
1202 | scm_longdigs(z, t2); | |
1203 | return scm_divbigbig(SCM_BDIGITS(x), SCM_NUMDIGS(x), t2, SCM_DIGSPERLONG, sgn, mode); | |
1204 | #endif | |
1205 | } | |
1206 | } | |
1207 | ||
1208 | #ifdef __STDC__ | |
1209 | SCM | |
1210 | scm_divbigbig(SCM_BIGDIG *x, scm_sizet nx, SCM_BIGDIG *y, scm_sizet ny, int sgn, int modes) | |
1211 | #else | |
1212 | SCM | |
1213 | scm_divbigbig(x, nx, y, ny, sgn, modes) | |
1214 | SCM_BIGDIG *x; | |
1215 | scm_sizet nx; | |
1216 | SCM_BIGDIG *y; | |
1217 | scm_sizet ny; | |
1218 | int sgn; | |
1219 | int modes; | |
1220 | #endif | |
1221 | { | |
1222 | /* modes description | |
1223 | 0 remainder | |
1224 | 1 scm_modulo | |
1225 | 2 quotient | |
1226 | 3 quotient but returns 0 if division is not exact. */ | |
1227 | scm_sizet i = 0, j = 0; | |
1228 | long num = 0; | |
1229 | unsigned long t2 = 0; | |
1230 | SCM z, newy; | |
1231 | SCM_BIGDIG d = 0, qhat, *zds, *yds; | |
1232 | /* algorithm requires nx >= ny */ | |
1233 | if (nx < ny) | |
1234 | switch (modes) { | |
1235 | case 0: /* remainder -- just return x */ | |
1236 | z = scm_mkbig(nx, sgn); zds = SCM_BDIGITS(z); | |
1237 | do {zds[i] = x[i];} while (++i < nx); | |
1238 | return z; | |
1239 | case 1: /* scm_modulo -- return y-x */ | |
1240 | z = scm_mkbig(ny, sgn); zds = SCM_BDIGITS(z); | |
1241 | do { | |
1242 | num += (long) y[i] - x[i]; | |
1243 | if (num < 0) {zds[i] = num + SCM_BIGRAD; num = -1;} | |
1244 | else {zds[i] = num; num = 0;} | |
1245 | } while (++i < nx); | |
1246 | while (i < ny) { | |
1247 | num += y[i]; | |
1248 | if (num < 0) {zds[i++] = num + SCM_BIGRAD; num = -1;} | |
1249 | else {zds[i++] = num; num = 0;} | |
1250 | } | |
1251 | goto doadj; | |
1252 | case 2: return SCM_INUM0; /* quotient is zero */ | |
1253 | case 3: return 0; /* the division is not exact */ | |
1254 | } | |
1255 | ||
1256 | z = scm_mkbig(nx==ny ? nx+2 : nx+1, sgn); zds = SCM_BDIGITS(z); | |
1257 | if (nx==ny) zds[nx+1] = 0; | |
1258 | while(!y[ny-1]) ny--; /* in case y came in as a psuedolong */ | |
1259 | if (y[ny-1] < (SCM_BIGRAD>>1)) { /* normalize operands */ | |
1260 | d = SCM_BIGRAD/(y[ny-1]+1); | |
1261 | newy = scm_mkbig(ny, 0); yds = SCM_BDIGITS(newy); | |
1262 | while(j < ny) | |
1263 | {t2 += (unsigned long) y[j]*d; yds[j++] = SCM_BIGLO(t2); t2 = SCM_BIGDN(t2);} | |
1264 | y = yds; j = 0; t2 = 0; | |
1265 | while(j < nx) | |
1266 | {t2 += (unsigned long) x[j]*d; zds[j++] = SCM_BIGLO(t2); t2 = SCM_BIGDN(t2);} | |
1267 | zds[j] = t2; | |
1268 | } | |
1269 | else {zds[j = nx] = 0; while (j--) zds[j] = x[j];} | |
1270 | j = nx==ny ? nx+1 : nx; /* dividend needs more digits than divisor */ | |
1271 | do { /* loop over digits of quotient */ | |
1272 | if (zds[j]==y[ny-1]) qhat = SCM_BIGRAD-1; | |
1273 | else qhat = (SCM_BIGUP(zds[j]) + zds[j-1])/y[ny-1]; | |
1274 | if (!qhat) continue; | |
1275 | i = 0; num = 0; t2 = 0; | |
1276 | do { /* multiply and subtract */ | |
1277 | t2 += (unsigned long) y[i] * qhat; | |
1278 | num += zds[j - ny + i] - SCM_BIGLO(t2); | |
1279 | if (num < 0) {zds[j - ny + i] = num + SCM_BIGRAD; num = -1;} | |
1280 | else {zds[j - ny + i] = num; num = 0;} | |
1281 | t2 = SCM_BIGDN(t2); | |
1282 | } while (++i < ny); | |
1283 | num += zds[j - ny + i] - t2; /* borrow from high digit; don't update */ | |
1284 | while (num) { /* "add back" required */ | |
1285 | i = 0; num = 0; qhat--; | |
1286 | do { | |
1287 | num += (long) zds[j - ny + i] + y[i]; | |
1288 | zds[j - ny + i] = SCM_BIGLO(num); | |
1289 | num = SCM_BIGDN(num); | |
1290 | } while (++i < ny); | |
1291 | num--; | |
1292 | } | |
1293 | if (modes & 2) zds[j] = qhat; | |
1294 | } while (--j >= ny); | |
1295 | switch (modes) { | |
1296 | case 3: /* check that remainder==0 */ | |
1297 | for(j = ny;j && !zds[j-1];--j) ; if (j) return 0; | |
1298 | case 2: /* move quotient down in z */ | |
1299 | j = (nx==ny ? nx+2 : nx+1) - ny; | |
1300 | for (i = 0;i < j;i++) zds[i] = zds[i+ny]; | |
1301 | ny = i; | |
1302 | break; | |
1303 | case 1: /* subtract for scm_modulo */ | |
1304 | i = 0; num = 0; j = 0; | |
1305 | do {num += y[i] - zds[i]; | |
1306 | j = j | zds[i]; | |
1307 | if (num < 0) {zds[i] = num + SCM_BIGRAD; num = -1;} | |
1308 | else {zds[i] = num; num = 0;} | |
1309 | } while (++i < ny); | |
1310 | if (!j) return SCM_INUM0; | |
1311 | case 0: /* just normalize remainder */ | |
1312 | if (d) scm_divbigdig(zds, ny, d); | |
1313 | } | |
1314 | doadj: | |
1315 | for(j = ny;j && !zds[j-1];--j) ; | |
1316 | if (j * SCM_BITSPERDIG <= sizeof(SCM)*SCM_CHAR_BIT) | |
1317 | if SCM_INUMP(z = scm_big2inum(z, j)) return z; | |
1318 | return scm_adjbig(z, j); | |
1319 | } | |
1320 | #endif | |
1321 | ||
1322 | ||
1323 | ||
1324 | \f | |
1325 | ||
1326 | /*** NUMBERS -> STRINGS ***/ | |
1327 | #ifdef SCM_FLOATS | |
1328 | int scm_dblprec; | |
1329 | static double fx[] = {0.0, 5e-1, 5e-2, 5e-3, 5e-4, 5e-5, | |
1330 | 5e-6, 5e-7, 5e-8, 5e-9, 5e-10, | |
1331 | 5e-11,5e-12,5e-13,5e-14,5e-15, | |
1332 | 5e-16,5e-17,5e-18,5e-19,5e-20}; | |
1333 | ||
1334 | ||
1335 | ||
1336 | #ifdef __STDC__ | |
1337 | static scm_sizet | |
1338 | idbl2str(double f, char *a) | |
1339 | #else | |
1340 | static scm_sizet | |
1341 | idbl2str(f, a) | |
1342 | double f; | |
1343 | char *a; | |
1344 | #endif | |
1345 | { | |
1346 | int efmt, dpt, d, i, wp = scm_dblprec; | |
1347 | scm_sizet ch = 0; | |
1348 | int exp = 0; | |
1349 | ||
1350 | if (f == 0.0) goto zero; /*{a[0]='0'; a[1]='.'; a[2]='0'; return 3;}*/ | |
1351 | if (f < 0.0) {f = -f;a[ch++]='-';} | |
1352 | else if (f > 0.0) ; | |
1353 | else goto funny; | |
1354 | if (IS_INF(f)) | |
1355 | { | |
1356 | if (ch == 0) a[ch++]='+'; | |
1357 | funny: a[ch++]='#'; a[ch++]='.'; a[ch++]='#'; return ch; | |
1358 | } | |
1359 | # ifdef DBL_MIN_10_EXP /* Prevent unnormalized values, as from | |
1360 | make-uniform-vector, from causing infinite loops. */ | |
1361 | while (f < 1.0) {f *= 10.0; if (exp-- < DBL_MIN_10_EXP) goto funny;} | |
1362 | while (f > 10.0) {f *= 0.10; if (exp++ > DBL_MAX_10_EXP) goto funny;} | |
1363 | # else | |
1364 | while (f < 1.0) {f *= 10.0; exp--;} | |
1365 | while (f > 10.0) {f /= 10.0; exp++;} | |
1366 | # endif | |
1367 | if (f+fx[wp] >= 10.0) {f = 1.0; exp++;} | |
1368 | zero: | |
1369 | # ifdef ENGNOT | |
1370 | dpt = (exp+9999)%3; | |
1371 | exp -= dpt++; | |
1372 | efmt = 1; | |
1373 | # else | |
1374 | efmt = (exp < -3) || (exp > wp+2); | |
1375 | if (!efmt) | |
1376 | if (exp < 0) { | |
1377 | a[ch++] = '0'; | |
1378 | a[ch++] = '.'; | |
1379 | dpt = exp; | |
1380 | while (++dpt) a[ch++] = '0'; | |
1381 | } else | |
1382 | dpt = exp+1; | |
1383 | else | |
1384 | dpt = 1; | |
1385 | # endif | |
1386 | ||
1387 | do { | |
1388 | d = f; | |
1389 | f -= d; | |
1390 | a[ch++] = d+'0'; | |
1391 | if (f < fx[wp]) break; | |
1392 | if (f+fx[wp] >= 1.0) { | |
1393 | a[ch-1]++; | |
1394 | break; | |
1395 | } | |
1396 | f *= 10.0; | |
1397 | if (!(--dpt)) a[ch++] = '.'; | |
1398 | } while (wp--); | |
1399 | ||
1400 | if (dpt > 0) | |
1401 | # ifndef ENGNOT | |
1402 | if ((dpt > 4) && (exp > 6)) { | |
1403 | d = (a[0]=='-'?2:1); | |
1404 | for (i = ch++; i > d; i--) | |
1405 | a[i] = a[i-1]; | |
1406 | a[d] = '.'; | |
1407 | efmt = 1; | |
1408 | } else | |
1409 | # endif | |
1410 | { | |
1411 | while (--dpt) a[ch++] = '0'; | |
1412 | a[ch++] = '.'; | |
1413 | } | |
1414 | if (a[ch-1]=='.') a[ch++]='0'; /* trailing zero */ | |
1415 | if (efmt && exp) { | |
1416 | a[ch++] = 'e'; | |
1417 | if (exp < 0) { | |
1418 | exp = -exp; | |
1419 | a[ch++] = '-'; | |
1420 | } | |
1421 | for (i = 10; i <= exp; i *= 10); | |
1422 | for (i /= 10; i; i /= 10) { | |
1423 | a[ch++] = exp/i + '0'; | |
1424 | exp %= i; | |
1425 | } | |
1426 | } | |
1427 | return ch; | |
1428 | } | |
1429 | ||
1430 | #ifdef __STDC__ | |
1431 | static scm_sizet | |
1432 | iflo2str(SCM flt, char *str) | |
1433 | #else | |
1434 | static scm_sizet | |
1435 | iflo2str(flt, str) | |
1436 | SCM flt; | |
1437 | char *str; | |
1438 | #endif | |
1439 | { | |
1440 | scm_sizet i; | |
1441 | # ifdef SCM_SINGLES | |
1442 | if SCM_SINGP(flt) i = idbl2str(SCM_FLO(flt), str); | |
1443 | else | |
1444 | # endif | |
1445 | i = idbl2str(SCM_REAL(flt), str); | |
1446 | if SCM_CPLXP(flt) { | |
1447 | if(0 <= SCM_IMAG(flt)) /* jeh */ | |
1448 | str[i++] = '+'; /* jeh */ | |
1449 | i += idbl2str(SCM_IMAG(flt), &str[i]); | |
1450 | str[i++] = 'i'; | |
1451 | } | |
1452 | return i; | |
1453 | } | |
1454 | #endif /* SCM_FLOATS */ | |
1455 | ||
1456 | #ifdef __STDC__ | |
1457 | scm_sizet | |
1458 | scm_iint2str(long num, int rad, char *p) | |
1459 | #else | |
1460 | scm_sizet | |
1461 | scm_iint2str(num, rad, p) | |
1462 | long num; | |
1463 | int rad; | |
1464 | char *p; | |
1465 | #endif | |
1466 | { | |
1467 | scm_sizet j; | |
1468 | register int i = 1, d; | |
1469 | register long n = num; | |
1470 | if (n < 0) {n = -n; i++;} | |
1471 | for (n /= rad;n > 0;n /= rad) i++; | |
1472 | j = i; | |
1473 | n = num; | |
1474 | if (n < 0) {n = -n; *p++ = '-'; i--;} | |
1475 | while (i--) { | |
1476 | d = n % rad; | |
1477 | n /= rad; | |
1478 | p[i] = d + ((d < 10) ? '0' : 'a' - 10); | |
1479 | } | |
1480 | return j; | |
1481 | } | |
1482 | ||
1483 | ||
1484 | #ifdef SCM_BIGDIG | |
1485 | #ifdef __STDC__ | |
1486 | static SCM | |
1487 | big2str(SCM b, register unsigned int radix) | |
1488 | #else | |
1489 | static SCM | |
1490 | big2str(b, radix) | |
1491 | SCM b; | |
1492 | register unsigned int radix; | |
1493 | #endif | |
1494 | { | |
1495 | SCM t = scm_copybig(b, 0); /* sign of temp doesn't matter */ | |
1496 | register SCM_BIGDIG *ds = SCM_BDIGITS(t); | |
1497 | scm_sizet i = SCM_NUMDIGS(t); | |
1498 | scm_sizet j = radix==16 ? (SCM_BITSPERDIG*i)/4+2 | |
1499 | : radix >= 10 ? (SCM_BITSPERDIG*i*241L)/800+2 | |
1500 | : (SCM_BITSPERDIG*i)+2; | |
1501 | scm_sizet k = 0; | |
1502 | scm_sizet radct = 0; | |
1503 | scm_sizet ch; /* jeh */ | |
1504 | SCM_BIGDIG radpow = 1, radmod = 0; | |
1505 | SCM ss = scm_makstr((long)j, 0); | |
1506 | char *s = SCM_CHARS(ss), c; | |
1507 | while ((long) radpow * radix < SCM_BIGRAD) { | |
1508 | radpow *= radix; | |
1509 | radct++; | |
1510 | } | |
1511 | s[0] = scm_tc16_bigneg==SCM_TYP16(b) ? '-' : '+'; | |
1512 | while ((i || radmod) && j) { | |
1513 | if (k == 0) { | |
1514 | radmod = (SCM_BIGDIG)scm_divbigdig(ds, i, radpow); | |
1515 | k = radct; | |
1516 | if (!ds[i-1]) i--; | |
1517 | } | |
1518 | c = radmod % radix; radmod /= radix; k--; | |
1519 | s[--j] = c < 10 ? c + '0' : c + 'a' - 10; | |
1520 | } | |
1521 | ch = s[0] == '-' ? 1 : 0; /* jeh */ | |
1522 | if (ch < j) { /* jeh */ | |
1523 | for(i = j;j < SCM_LENGTH(ss);j++) s[ch+j-i] = s[j]; /* jeh */ | |
1524 | scm_vector_set_length_x(ss, (SCM)SCM_MAKINUM(ch+SCM_LENGTH(ss)-i)); /* jeh */ | |
1525 | } | |
1526 | return ss; | |
1527 | } | |
1528 | #endif | |
1529 | ||
1530 | ||
1531 | SCM_PROC(s_number_to_string, "number->string", 1, 1, 0, scm_number_to_string); | |
1532 | #ifdef __STDC__ | |
1533 | SCM | |
1534 | scm_number_to_string(SCM x, SCM radix) | |
1535 | #else | |
1536 | SCM | |
1537 | scm_number_to_string(x, radix) | |
1538 | SCM x; | |
1539 | SCM radix; | |
1540 | #endif | |
1541 | { | |
1542 | if SCM_UNBNDP(radix) radix=SCM_MAKINUM(10L); | |
1543 | else SCM_ASSERT(SCM_INUMP(radix), radix, SCM_ARG2, s_number_to_string); | |
1544 | #ifdef SCM_FLOATS | |
1545 | if SCM_NINUMP(x) { | |
1546 | char num_buf[SCM_FLOBUFLEN]; | |
1547 | # ifdef SCM_BIGDIG | |
1548 | SCM_ASRTGO(SCM_NIMP(x), badx); | |
1549 | if SCM_BIGP(x) return big2str(x, (unsigned int)SCM_INUM(radix)); | |
1550 | # ifndef RECKLESS | |
1551 | if (!(SCM_INEXP(x))) | |
1552 | badx: scm_wta(x, (char *)SCM_ARG1, s_number_to_string); | |
1553 | # endif | |
1554 | # else | |
1555 | SCM_ASSERT(SCM_NIMP(x) && SCM_INEXP(x), x, SCM_ARG1, s_number_to_string); | |
1556 | # endif | |
1557 | return scm_makfromstr(num_buf, iflo2str(x, num_buf), 0); | |
1558 | } | |
1559 | #else | |
1560 | # ifdef SCM_BIGDIG | |
1561 | if SCM_NINUMP(x) { | |
1562 | SCM_ASSERT(SCM_NIMP(x) && SCM_BIGP(x), x, SCM_ARG1, s_number_to_string); | |
1563 | return big2str(x, (unsigned int)SCM_INUM(radix)); | |
1564 | } | |
1565 | # else | |
1566 | SCM_ASSERT(SCM_INUMP(x), x, SCM_ARG1, s_number_to_string); | |
1567 | # endif | |
1568 | #endif | |
1569 | { | |
1570 | char num_buf[SCM_INTBUFLEN]; | |
1571 | return scm_makfromstr(num_buf, | |
1572 | scm_iint2str(SCM_INUM(x), (int)SCM_INUM(radix), num_buf), 0); | |
1573 | } | |
1574 | } | |
1575 | ||
1576 | ||
1577 | /* These print routines are stubbed here so that scm_repl.c doesn't need | |
1578 | SCM_FLOATS or SCM_BIGDIGs conditionals */ | |
1579 | #ifdef __STDC__ | |
1580 | int | |
1581 | scm_floprint(SCM sexp, SCM port, int writing) | |
1582 | #else | |
1583 | int | |
1584 | scm_floprint(sexp, port, writing) | |
1585 | SCM sexp; | |
1586 | SCM port; | |
1587 | int writing; | |
1588 | #endif | |
1589 | { | |
1590 | #ifdef SCM_FLOATS | |
1591 | char num_buf[SCM_FLOBUFLEN]; | |
1592 | scm_gen_write (scm_regular_string, num_buf, iflo2str(sexp, num_buf), port); | |
1593 | #else | |
1594 | scm_ipruk("float", sexp, port); | |
1595 | #endif | |
1596 | return !0; | |
1597 | } | |
1598 | ||
1599 | ||
1600 | #ifdef __STDC__ | |
1601 | int | |
1602 | scm_bigprint(SCM exp, SCM port, int writing) | |
1603 | #else | |
1604 | int | |
1605 | scm_bigprint(exp, port, writing) | |
1606 | SCM exp; | |
1607 | SCM port; | |
1608 | int writing; | |
1609 | #endif | |
1610 | { | |
1611 | #ifdef SCM_BIGDIG | |
1612 | exp = big2str(exp, (unsigned int)10); | |
1613 | scm_gen_write (scm_regular_string, SCM_CHARS(exp), (scm_sizet)SCM_LENGTH(exp), port); | |
1614 | #else | |
1615 | scm_ipruk("bignum", exp, port); | |
1616 | #endif | |
1617 | return !0; | |
1618 | } | |
1619 | /*** END nums->strs ***/ | |
1620 | ||
1621 | /*** STRINGS -> NUMBERS ***/ | |
1622 | #ifdef SCM_BIGDIG | |
1623 | #ifdef __STDC__ | |
1624 | SCM | |
1625 | scm_istr2int(char *str, long len, long radix) | |
1626 | #else | |
1627 | SCM | |
1628 | scm_istr2int(str, len, radix) | |
1629 | char *str; | |
1630 | long len; | |
1631 | long radix; | |
1632 | #endif | |
1633 | { | |
1634 | scm_sizet j; | |
1635 | register scm_sizet k, blen = 1; | |
1636 | scm_sizet i = 0; | |
1637 | int c; | |
1638 | SCM res; | |
1639 | register SCM_BIGDIG *ds; | |
1640 | register unsigned long t2; | |
1641 | ||
1642 | if (0 >= len) return SCM_BOOL_F; /* zero scm_length */ | |
1643 | if (16==radix) j = 1+(4*len*sizeof(char))/(SCM_BITSPERDIG); | |
1644 | else if (10 <= radix) | |
1645 | j = 1+(84*len*sizeof(char))/(SCM_BITSPERDIG*25); | |
1646 | else j = 1+(len*sizeof(char))/(SCM_BITSPERDIG); | |
1647 | switch (str[0]) { /* leading sign */ | |
1648 | case '-': | |
1649 | case '+': if (++i==len) return SCM_BOOL_F; /* bad if lone `+' or `-' */ | |
1650 | } | |
1651 | res = scm_mkbig(j, '-'==str[0]); | |
1652 | ds = SCM_BDIGITS(res); | |
1653 | for (k = j;k--;) ds[k] = 0; | |
1654 | do { | |
1655 | switch (c = str[i++]) { | |
1656 | case DIGITS: | |
1657 | c = c - '0'; | |
1658 | goto accumulate; | |
1659 | case 'A': case 'B': case 'C': case 'D': case 'E': case 'F': | |
1660 | c = c-'A'+10; | |
1661 | goto accumulate; | |
1662 | case 'a': case 'b': case 'c': case 'd': case 'e': case 'f': | |
1663 | c = c-'a'+10; | |
1664 | accumulate: | |
1665 | if (c >= radix) return SCM_BOOL_F; /* bad digit for radix */ | |
1666 | k = 0; | |
1667 | t2 = c; | |
1668 | moretodo: | |
1669 | while(k < blen) { | |
1670 | /* printf("k = %d, blen = %d, t2 = %ld, ds[k] = %d\n", k, blen, t2, ds[k]);*/ | |
1671 | t2 += ds[k]*radix; | |
1672 | ds[k++] = SCM_BIGLO(t2); | |
1673 | t2 = SCM_BIGDN(t2); | |
1674 | } | |
1675 | SCM_ASSERT(blen <= j, (SCM)SCM_MAKINUM(blen), SCM_OVSCM_FLOW, "bignum"); | |
1676 | if (t2) {blen++; goto moretodo;} | |
1677 | break; | |
1678 | default: | |
1679 | return SCM_BOOL_F; /* not a digit */ | |
1680 | } | |
1681 | } while (i < len); | |
1682 | if (blen * SCM_BITSPERDIG/SCM_CHAR_BIT <= sizeof(SCM)) | |
1683 | if SCM_INUMP(res = scm_big2inum(res, blen)) return res; | |
1684 | if (j==blen) return res; | |
1685 | return scm_adjbig(res, blen); | |
1686 | } | |
1687 | #else | |
1688 | ||
1689 | ||
1690 | ||
1691 | #ifdef __STDC__ | |
1692 | SCM | |
1693 | scm_istr2int(char *str, long len, long radix) | |
1694 | #else | |
1695 | SCM | |
1696 | scm_istr2int(str, len, radix) | |
1697 | char *str; | |
1698 | long len; | |
1699 | long radix; | |
1700 | #endif | |
1701 | { | |
1702 | register long n = 0, ln; | |
1703 | register int c; | |
1704 | register int i = 0; | |
1705 | int lead_neg = 0; | |
1706 | if (0 >= len) return SCM_BOOL_F; /* zero scm_length */ | |
1707 | switch (*str) { /* leading sign */ | |
1708 | case '-': lead_neg = 1; | |
1709 | case '+': if (++i==len) return SCM_BOOL_F; /* bad if lone `+' or `-' */ | |
1710 | } | |
1711 | ||
1712 | do { | |
1713 | switch (c = str[i++]) { | |
1714 | case DIGITS: | |
1715 | c = c - '0'; | |
1716 | goto accumulate; | |
1717 | case 'A': case 'B': case 'C': case 'D': case 'E': case 'F': | |
1718 | c = c-'A'+10; | |
1719 | goto accumulate; | |
1720 | case 'a': case 'b': case 'c': case 'd': case 'e': case 'f': | |
1721 | c = c-'a'+10; | |
1722 | accumulate: | |
1723 | if (c >= radix) return SCM_BOOL_F; /* bad digit for radix */ | |
1724 | ln = n; | |
1725 | n = n * radix - c; | |
1726 | /* Negation is a workaround for HP700 cc bug */ | |
1727 | if (n > ln || (-n > -SCM_MOST_NEGATIVE_FIXNUM)) goto ovfl; | |
1728 | break; | |
1729 | default: | |
1730 | return SCM_BOOL_F; /* not a digit */ | |
1731 | } | |
1732 | } while (i < len); | |
1733 | if (!lead_neg) if ((n = -n) > SCM_MOST_POSITIVE_FIXNUM) goto ovfl; | |
1734 | return SCM_MAKINUM(n); | |
1735 | ovfl: /* overflow scheme integer */ | |
1736 | return SCM_BOOL_F; | |
1737 | } | |
1738 | #endif | |
1739 | ||
1740 | #ifdef SCM_FLOATS | |
1741 | #ifdef __STDC__ | |
1742 | SCM | |
1743 | scm_istr2flo(char *str, long len, long radix) | |
1744 | #else | |
1745 | SCM | |
1746 | scm_istr2flo(str, len, radix) | |
1747 | char *str; | |
1748 | long len; | |
1749 | long radix; | |
1750 | #endif | |
1751 | { | |
1752 | register int c, i = 0; | |
1753 | double lead_sgn; | |
1754 | double res = 0.0, tmp = 0.0; | |
1755 | int flg = 0; | |
1756 | int point = 0; | |
1757 | SCM second; | |
1758 | ||
1759 | if (i >= len) return SCM_BOOL_F; /* zero scm_length */ | |
1760 | ||
1761 | switch (*str) { /* leading sign */ | |
1762 | case '-': lead_sgn = -1.0; i++; break; | |
1763 | case '+': lead_sgn = 1.0; i++; break; | |
1764 | default : lead_sgn = 0.0; | |
1765 | } | |
1766 | if (i==len) return SCM_BOOL_F; /* bad if lone `+' or `-' */ | |
1767 | ||
1768 | if (str[i]=='i' || str[i]=='I') { /* handle `+i' and `-i' */ | |
1769 | if (lead_sgn==0.0) return SCM_BOOL_F; /* must have leading sign */ | |
1770 | if (++i < len) return SCM_BOOL_F; /* `i' not last character */ | |
1771 | return scm_makdbl(0.0, lead_sgn); | |
1772 | } | |
1773 | do { /* check initial digits */ | |
1774 | switch (c = str[i]) { | |
1775 | case DIGITS: | |
1776 | c = c - '0'; | |
1777 | goto accum1; | |
1778 | case 'D': case 'E': case 'F': | |
1779 | if (radix==10) goto out1; /* must be exponent */ | |
1780 | case 'A': case 'B': case 'C': | |
1781 | c = c-'A'+10; | |
1782 | goto accum1; | |
1783 | case 'd': case 'e': case 'f': | |
1784 | if (radix==10) goto out1; | |
1785 | case 'a': case 'b': case 'c': | |
1786 | c = c-'a'+10; | |
1787 | accum1: | |
1788 | if (c >= radix) return SCM_BOOL_F; /* bad digit for radix */ | |
1789 | res = res * radix + c; | |
1790 | flg = 1; /* res is valid */ | |
1791 | break; | |
1792 | default: | |
1793 | goto out1; | |
1794 | } | |
1795 | } while (++i < len); | |
1796 | out1: | |
1797 | ||
1798 | /* if true, then we did see a digit above, and res is valid */ | |
1799 | if (i==len) goto done; | |
1800 | ||
1801 | /* By here, must have seen a digit, | |
1802 | or must have next char be a `.' with radix==10 */ | |
1803 | if (!flg) | |
1804 | if (!(str[i]=='.' && radix==10)) | |
1805 | return SCM_BOOL_F; | |
1806 | ||
1807 | while (str[i]=='#') { /* optional sharps */ | |
1808 | res *= radix; | |
1809 | if (++i==len) goto done; | |
1810 | } | |
1811 | ||
1812 | if (str[i]=='/') { | |
1813 | while (++i < len) { | |
1814 | switch (c = str[i]) { | |
1815 | case DIGITS: | |
1816 | c = c - '0'; | |
1817 | goto accum2; | |
1818 | case 'A': case 'B': case 'C': case 'D': case 'E': case 'F': | |
1819 | c = c-'A'+10; | |
1820 | goto accum2; | |
1821 | case 'a': case 'b': case 'c': case 'd': case 'e': case 'f': | |
1822 | c = c-'a'+10; | |
1823 | accum2: | |
1824 | if (c >= radix) return SCM_BOOL_F; | |
1825 | tmp = tmp * radix + c; | |
1826 | break; | |
1827 | default: | |
1828 | goto out2; | |
1829 | } | |
1830 | } | |
1831 | out2: | |
1832 | if (tmp==0.0) return SCM_BOOL_F; /* `slash zero' not allowed */ | |
1833 | if (i < len) | |
1834 | while (str[i]=='#') { /* optional sharps */ | |
1835 | tmp *= radix; | |
1836 | if (++i==len) break; | |
1837 | } | |
1838 | res /= tmp; | |
1839 | goto done; | |
1840 | } | |
1841 | ||
1842 | if (str[i]=='.') { /* decimal point notation */ | |
1843 | if (radix != 10) return SCM_BOOL_F; /* must be radix 10 */ | |
1844 | while (++i < len) { | |
1845 | switch (c = str[i]) { | |
1846 | case DIGITS: | |
1847 | point--; | |
1848 | res = res*10.0 + c-'0'; | |
1849 | flg = 1; | |
1850 | break; | |
1851 | default: | |
1852 | goto out3; | |
1853 | } | |
1854 | } | |
1855 | out3: | |
1856 | if (!flg) return SCM_BOOL_F; /* no digits before or after decimal point */ | |
1857 | if (i==len) goto adjust; | |
1858 | while (str[i]=='#') { /* ignore remaining sharps */ | |
1859 | if (++i==len) goto adjust; | |
1860 | } | |
1861 | } | |
1862 | ||
1863 | switch (str[i]) { /* exponent */ | |
1864 | case 'd': case 'D': | |
1865 | case 'e': case 'E': | |
1866 | case 'f': case 'F': | |
1867 | case 'l': case 'L': | |
1868 | case 's': case 'S': { | |
1869 | int expsgn = 1, expon = 0; | |
1870 | if (radix != 10) return SCM_BOOL_F; /* only in radix 10 */ | |
1871 | if (++i==len) return SCM_BOOL_F; /* bad exponent */ | |
1872 | switch (str[i]) { | |
1873 | case '-': expsgn=(-1); | |
1874 | case '+': if (++i==len) return SCM_BOOL_F; /* bad exponent */ | |
1875 | } | |
1876 | if (str[i] < '0' || str[i] > '9') return SCM_BOOL_F; /* bad exponent */ | |
1877 | do { | |
1878 | switch (c = str[i]) { | |
1879 | case DIGITS: | |
1880 | expon = expon*10 + c-'0'; | |
1881 | if (expon > MAXEXP) return SCM_BOOL_F; /* exponent too large */ | |
1882 | break; | |
1883 | default: | |
1884 | goto out4; | |
1885 | } | |
1886 | } while (++i < len); | |
1887 | out4: | |
1888 | point += expsgn*expon; | |
1889 | } | |
1890 | } | |
1891 | ||
1892 | adjust: | |
1893 | if (point >= 0) | |
1894 | while (point--) res *= 10.0; | |
1895 | else | |
1896 | # ifdef _UNICOS | |
1897 | while (point++) res *= 0.1; | |
1898 | # else | |
1899 | while (point++) res /= 10.0; | |
1900 | # endif | |
1901 | ||
1902 | done: | |
1903 | /* at this point, we have a legitimate floating point result */ | |
1904 | if (lead_sgn==-1.0) res = -res; | |
1905 | if (i==len) return scm_makdbl(res, 0.0); | |
1906 | ||
1907 | if (str[i]=='i' || str[i]=='I') { /* pure imaginary number */ | |
1908 | if (lead_sgn==0.0) return SCM_BOOL_F; /* must have leading sign */ | |
1909 | if (++i < len) return SCM_BOOL_F; /* `i' not last character */ | |
1910 | return scm_makdbl(0.0, res); | |
1911 | } | |
1912 | ||
1913 | switch (str[i++]) { | |
1914 | case '-': lead_sgn = -1.0; break; | |
1915 | case '+': lead_sgn = 1.0; break; | |
1916 | case '@': { /* polar input for complex number */ | |
1917 | /* get a `real' for scm_angle */ | |
1918 | second = scm_istr2flo(&str[i], (long)(len-i), radix); | |
1919 | if (!(SCM_INEXP(second))) return SCM_BOOL_F; /* not `real' */ | |
1920 | if (SCM_CPLXP(second)) return SCM_BOOL_F; /* not `real' */ | |
1921 | tmp = SCM_REALPART(second); | |
1922 | return scm_makdbl(res*cos(tmp), res*sin(tmp)); | |
1923 | } | |
1924 | default: return SCM_BOOL_F; | |
1925 | } | |
1926 | ||
1927 | /* at this point, last char must be `i' */ | |
1928 | if (str[len-1] != 'i' && str[len-1] != 'I') return SCM_BOOL_F; | |
1929 | /* handles `x+i' and `x-i' */ | |
1930 | if (i==(len-1)) return scm_makdbl(res, lead_sgn); | |
1931 | /* get a `ureal' for complex part */ | |
1932 | second = scm_istr2flo(&str[i], (long)((len-i)-1), radix); | |
1933 | if (!(SCM_INEXP(second))) return SCM_BOOL_F; /* not `ureal' */ | |
1934 | if (SCM_CPLXP(second)) return SCM_BOOL_F; /* not `ureal' */ | |
1935 | tmp = SCM_REALPART(second); | |
1936 | if (tmp < 0.0) return SCM_BOOL_F; /* not `ureal' */ | |
1937 | return scm_makdbl(res, (lead_sgn*tmp)); | |
1938 | } | |
1939 | #endif /* SCM_FLOATS */ | |
1940 | ||
1941 | ||
1942 | #ifdef __STDC__ | |
1943 | SCM | |
1944 | scm_istring2number(char *str, long len, long radix) | |
1945 | #else | |
1946 | SCM | |
1947 | scm_istring2number(str, len, radix) | |
1948 | char *str; | |
1949 | long len; | |
1950 | long radix; | |
1951 | #endif | |
1952 | { | |
1953 | int i = 0; | |
1954 | char ex = 0; | |
1955 | char ex_p = 0, rx_p = 0; /* Only allow 1 exactness and 1 radix prefix */ | |
1956 | SCM res; | |
1957 | if (len==1) | |
1958 | if (*str=='+' || *str=='-') /* Catches lone `+' and `-' for speed */ | |
1959 | return SCM_BOOL_F; | |
1960 | ||
1961 | while ((len-i) >= 2 && str[i]=='#' && ++i) | |
1962 | switch (str[i++]) { | |
1963 | case 'b': case 'B': if (rx_p++) return SCM_BOOL_F; radix = 2; break; | |
1964 | case 'o': case 'O': if (rx_p++) return SCM_BOOL_F; radix = 8; break; | |
1965 | case 'd': case 'D': if (rx_p++) return SCM_BOOL_F; radix = 10; break; | |
1966 | case 'x': case 'X': if (rx_p++) return SCM_BOOL_F; radix = 16; break; | |
1967 | case 'i': case 'I': if (ex_p++) return SCM_BOOL_F; ex = 2; break; | |
1968 | case 'e': case 'E': if (ex_p++) return SCM_BOOL_F; ex = 1; break; | |
1969 | default: return SCM_BOOL_F; | |
1970 | } | |
1971 | ||
1972 | switch (ex) { | |
1973 | case 1: | |
1974 | return scm_istr2int(&str[i], len-i, radix); | |
1975 | case 0: | |
1976 | res = scm_istr2int(&str[i], len-i, radix); | |
1977 | if SCM_NFALSEP(res) return res; | |
1978 | #ifdef SCM_FLOATS | |
1979 | case 2: return scm_istr2flo(&str[i], len-i, radix); | |
1980 | #endif | |
1981 | } | |
1982 | return SCM_BOOL_F; | |
1983 | } | |
1984 | ||
1985 | ||
1986 | SCM_PROC(s_string_to_number, "string->number", 1, 1, 0, scm_string_to_number); | |
1987 | #ifdef __STDC__ | |
1988 | SCM | |
1989 | scm_string_to_number(SCM str, SCM radix) | |
1990 | #else | |
1991 | SCM | |
1992 | scm_string_to_number(str, radix) | |
1993 | SCM str; | |
1994 | SCM radix; | |
1995 | #endif | |
1996 | { | |
1997 | SCM answer; | |
1998 | if SCM_UNBNDP(radix) radix=SCM_MAKINUM(10L); | |
1999 | else SCM_ASSERT(SCM_INUMP(radix), radix, SCM_ARG2, s_string_to_number); | |
2000 | SCM_ASSERT(SCM_NIMP(str) && SCM_ROSTRINGP(str), str, SCM_ARG1, s_string_to_number); | |
2001 | answer = scm_istring2number(SCM_ROCHARS(str), SCM_ROLENGTH(str), SCM_INUM(radix)); | |
2002 | return scm_return_first (answer, str); | |
2003 | } | |
2004 | /*** END strs->nums ***/ | |
2005 | ||
2006 | #ifdef SCM_FLOATS | |
2007 | #ifdef __STDC__ | |
2008 | SCM | |
2009 | scm_makdbl (double x, double y) | |
2010 | #else | |
2011 | SCM | |
2012 | scm_makdbl (x, y) | |
2013 | double x; | |
2014 | double y; | |
2015 | #endif | |
2016 | { | |
2017 | SCM z; | |
2018 | if ((y==0.0) && (x==0.0)) return scm_flo0; | |
2019 | SCM_NEWCELL(z); | |
2020 | SCM_DEFER_INTS; | |
2021 | if (y==0.0) { | |
2022 | # ifdef SCM_SINGLES | |
2023 | float fx = x; | |
2024 | # ifndef SCM_SINGLESONLY | |
2025 | if ((-FLTMAX < x) && (x < FLTMAX) && (fx==x)) | |
2026 | # endif | |
2027 | { | |
2028 | SCM_CAR(z) = scm_tc_flo; | |
2029 | SCM_FLO(z) = x; | |
2030 | SCM_ALLOW_INTS; | |
2031 | return z; | |
2032 | } | |
2033 | # endif/* def SCM_SINGLES */ | |
2034 | SCM_CDR(z) = (SCM)scm_must_malloc(1L*sizeof(double), "real"); | |
2035 | SCM_CAR(z) = scm_tc_dblr; | |
2036 | } | |
2037 | else { | |
2038 | SCM_CDR(z) = (SCM)scm_must_malloc(2L*sizeof(double), "complex"); | |
2039 | SCM_CAR(z) = scm_tc_dblc; | |
2040 | SCM_IMAG(z) = y; | |
2041 | } | |
2042 | SCM_REAL(z) = x; | |
2043 | SCM_ALLOW_INTS; | |
2044 | return z; | |
2045 | } | |
2046 | #endif | |
2047 | ||
2048 | ||
2049 | #ifdef __STDC__ | |
2050 | SCM | |
2051 | scm_bigequal(SCM x, SCM y) | |
2052 | #else | |
2053 | SCM | |
2054 | scm_bigequal(x, y) | |
2055 | SCM x; | |
2056 | SCM y; | |
2057 | #endif | |
2058 | { | |
2059 | #ifdef SCM_BIGDIG | |
2060 | if (0==scm_bigcomp(x, y)) return SCM_BOOL_T; | |
2061 | #endif | |
2062 | return SCM_BOOL_F; | |
2063 | } | |
2064 | ||
2065 | ||
2066 | #ifdef __STDC__ | |
2067 | SCM | |
2068 | scm_floequal(SCM x, SCM y) | |
2069 | #else | |
2070 | SCM | |
2071 | scm_floequal(x, y) | |
2072 | SCM x; | |
2073 | SCM y; | |
2074 | #endif | |
2075 | { | |
2076 | #ifdef SCM_FLOATS | |
2077 | if (SCM_REALPART(x) != SCM_REALPART(y)) return SCM_BOOL_F; | |
2078 | if (!(SCM_CPLXP(x) && (SCM_IMAG(x) != SCM_IMAG(y)))) return SCM_BOOL_T; | |
2079 | #endif | |
2080 | return SCM_BOOL_F; | |
2081 | } | |
2082 | ||
2083 | ||
2084 | ||
2085 | ||
2086 | SCM_PROC(s_number_p, "number?", 1, 0, 0, scm_number_p); | |
2087 | SCM_PROC(s_complex_p, "complex?", 1, 0, 0, scm_number_p); | |
2088 | #ifdef __STDC__ | |
2089 | SCM | |
2090 | scm_number_p(SCM x) | |
2091 | #else | |
2092 | SCM | |
2093 | scm_number_p(x) | |
2094 | SCM x; | |
2095 | #endif | |
2096 | { | |
2097 | if SCM_INUMP(x) return SCM_BOOL_T; | |
2098 | #ifdef SCM_FLOATS | |
2099 | if (SCM_NIMP(x) && SCM_NUMP(x)) return SCM_BOOL_T; | |
2100 | #else | |
2101 | # ifdef SCM_BIGDIG | |
2102 | if (SCM_NIMP(x) && SCM_NUMP(x)) return SCM_BOOL_T; | |
2103 | # endif | |
2104 | #endif | |
2105 | return SCM_BOOL_F; | |
2106 | } | |
2107 | ||
2108 | ||
2109 | ||
2110 | #ifdef SCM_FLOATS | |
2111 | SCM_PROC(s_real_p, "real?", 1, 0, 0, scm_real_p); | |
2112 | SCM_PROC(s_rational_p, "rational?", 1, 0, 0, scm_real_p); | |
2113 | #ifdef __STDC__ | |
2114 | SCM | |
2115 | scm_real_p(SCM x) | |
2116 | #else | |
2117 | SCM | |
2118 | scm_real_p(x) | |
2119 | SCM x; | |
2120 | #endif | |
2121 | { | |
2122 | if (SCM_INUMP(x)) | |
2123 | return SCM_BOOL_T; | |
2124 | if (SCM_IMP(x)) | |
2125 | return SCM_BOOL_F; | |
2126 | if (SCM_REALP(x)) | |
2127 | return SCM_BOOL_T; | |
2128 | # ifdef SCM_BIGDIG | |
2129 | if (SCM_BIGP(x)) | |
2130 | return SCM_BOOL_T; | |
2131 | # endif | |
2132 | return SCM_BOOL_F; | |
2133 | } | |
2134 | ||
2135 | ||
2136 | ||
2137 | SCM_PROC(s_int_p, "int?", 1, 0, 0, scm_int_p); | |
2138 | #ifdef __STDC__ | |
2139 | SCM | |
2140 | scm_int_p(SCM x) | |
2141 | #else | |
2142 | SCM | |
2143 | scm_int_p(x) | |
2144 | SCM x; | |
2145 | #endif | |
2146 | { | |
2147 | double r; | |
2148 | if SCM_INUMP(x) return SCM_BOOL_T; | |
2149 | if SCM_IMP(x) return SCM_BOOL_F; | |
2150 | # ifdef SCM_BIGDIG | |
2151 | if SCM_BIGP(x) return SCM_BOOL_T; | |
2152 | # endif | |
2153 | if (!SCM_INEXP(x)) return SCM_BOOL_F; | |
2154 | if SCM_CPLXP(x) return SCM_BOOL_F; | |
2155 | r = SCM_REALPART(x); | |
2156 | if (r==floor(r)) return SCM_BOOL_T; | |
2157 | return SCM_BOOL_F; | |
2158 | } | |
2159 | ||
2160 | ||
2161 | ||
2162 | #endif /* SCM_FLOATS */ | |
2163 | ||
2164 | SCM_PROC(s_inexact_p, "inexact?", 1, 0, 0, scm_inexact_p); | |
2165 | #ifdef __STDC__ | |
2166 | SCM | |
2167 | scm_inexact_p(SCM x) | |
2168 | #else | |
2169 | SCM | |
2170 | scm_inexact_p(x) | |
2171 | SCM x; | |
2172 | #endif | |
2173 | { | |
2174 | #ifdef SCM_FLOATS | |
2175 | if (SCM_NIMP(x) && SCM_INEXP(x)) return SCM_BOOL_T; | |
2176 | #endif | |
2177 | return SCM_BOOL_F; | |
2178 | } | |
2179 | ||
2180 | ||
2181 | ||
2182 | ||
2183 | SCM_PROC1 (s_eq_p, "=?", scm_tc7_rpsubr, scm_num_eq_p); | |
2184 | #ifdef __STDC__ | |
2185 | SCM | |
2186 | scm_num_eq_p (SCM x, SCM y) | |
2187 | #else | |
2188 | SCM | |
2189 | scm_num_eq_p (x, y) | |
2190 | SCM x; | |
2191 | SCM y; | |
2192 | #endif | |
2193 | { | |
2194 | #ifdef SCM_FLOATS | |
2195 | SCM t; | |
2196 | if SCM_NINUMP(x) { | |
2197 | # ifdef SCM_BIGDIG | |
2198 | # ifndef RECKLESS | |
2199 | if (!(SCM_NIMP(x))) | |
2200 | badx: scm_wta(x, (char *)SCM_ARG1, s_eq_p); | |
2201 | # endif | |
2202 | if SCM_BIGP(x) { | |
2203 | if SCM_INUMP(y) return SCM_BOOL_F; | |
2204 | SCM_ASRTGO(SCM_NIMP(y), bady); | |
2205 | if SCM_BIGP(y) return (0==scm_bigcomp(x, y)) ? SCM_BOOL_T : SCM_BOOL_F; | |
2206 | SCM_ASRTGO(SCM_INEXP(y), bady); | |
2207 | bigreal: | |
2208 | return (SCM_REALP(y) && (scm_big2dbl(x)==SCM_REALPART(y))) ? SCM_BOOL_T : SCM_BOOL_F; | |
2209 | } | |
2210 | SCM_ASRTGO(SCM_INEXP(x), badx); | |
2211 | # else | |
2212 | SCM_ASSERT(SCM_NIMP(x) && SCM_INEXP(x), x, SCM_ARG1, s_eq_p); | |
2213 | # endif | |
2214 | if SCM_INUMP(y) {t = x; x = y; y = t; goto realint;} | |
2215 | # ifdef SCM_BIGDIG | |
2216 | SCM_ASRTGO(SCM_NIMP(y), bady); | |
2217 | if SCM_BIGP(y) {t = x; x = y; y = t; goto bigreal;} | |
2218 | SCM_ASRTGO(SCM_INEXP(y), bady); | |
2219 | # else | |
2220 | SCM_ASRTGO(SCM_NIMP(y) && SCM_INEXP(y), bady); | |
2221 | # endif | |
2222 | if (SCM_REALPART(x) != SCM_REALPART(y)) return SCM_BOOL_F; | |
2223 | if SCM_CPLXP(x) | |
2224 | return (SCM_CPLXP(y) && (SCM_IMAG(x)==SCM_IMAG(y))) ? SCM_BOOL_T : SCM_BOOL_F; | |
2225 | return SCM_CPLXP(y) ? SCM_BOOL_F : SCM_BOOL_T; | |
2226 | } | |
2227 | if SCM_NINUMP(y) { | |
2228 | # ifdef SCM_BIGDIG | |
2229 | SCM_ASRTGO(SCM_NIMP(y), bady); | |
2230 | if SCM_BIGP(y) return SCM_BOOL_F; | |
2231 | # ifndef RECKLESS | |
2232 | if (!(SCM_INEXP(y))) | |
2233 | bady: scm_wta(y, (char *)SCM_ARG2, s_eq_p); | |
2234 | # endif | |
2235 | # else | |
2236 | # ifndef RECKLESS | |
2237 | if (!(SCM_NIMP(y) && SCM_INEXP(y))) | |
2238 | bady: scm_wta(y, (char *)SCM_ARG2, s_eq_p); | |
2239 | # endif | |
2240 | # endif | |
2241 | realint: | |
2242 | return (SCM_REALP(y) && (((double)SCM_INUM(x))==SCM_REALPART(y))) ? SCM_BOOL_T : SCM_BOOL_F; | |
2243 | } | |
2244 | #else | |
2245 | # ifdef SCM_BIGDIG | |
2246 | if SCM_NINUMP(x) { | |
2247 | SCM_ASSERT(SCM_NIMP(x) && SCM_BIGP(x), x, SCM_ARG1, s_eq_p); | |
2248 | if SCM_INUMP(y) return SCM_BOOL_F; | |
2249 | SCM_ASRTGO(SCM_NIMP(y) && SCM_BIGP(y), bady); | |
2250 | return (0==scm_bigcomp(x, y)) ? SCM_BOOL_T : SCM_BOOL_F; | |
2251 | } | |
2252 | if SCM_NINUMP(y) { | |
2253 | # ifndef RECKLESS | |
2254 | if (!(SCM_NIMP(y) && SCM_BIGP(y))) | |
2255 | bady: scm_wta(y, (char *)SCM_ARG2, s_eq_p); | |
2256 | # endif | |
2257 | return SCM_BOOL_F; | |
2258 | } | |
2259 | # else | |
2260 | SCM_ASSERT(SCM_INUMP(x), x, SCM_ARG1, s_eq_p); | |
2261 | SCM_ASSERT(SCM_INUMP(y), y, SCM_ARG2, s_eq_p); | |
2262 | # endif | |
2263 | #endif | |
2264 | return ((long)x==(long)y) ? SCM_BOOL_T : SCM_BOOL_F; | |
2265 | } | |
2266 | ||
2267 | ||
2268 | ||
2269 | SCM_PROC1 (s_less_p, "<?", scm_tc7_rpsubr, scm_less_p); | |
2270 | #ifdef __STDC__ | |
2271 | SCM | |
2272 | scm_less_p(SCM x, SCM y) | |
2273 | #else | |
2274 | SCM | |
2275 | scm_less_p(x, y) | |
2276 | SCM x; | |
2277 | SCM y; | |
2278 | #endif | |
2279 | { | |
2280 | #ifdef SCM_FLOATS | |
2281 | if SCM_NINUMP(x) { | |
2282 | # ifdef SCM_BIGDIG | |
2283 | # ifndef RECKLESS | |
2284 | if (!(SCM_NIMP(x))) | |
2285 | badx: scm_wta(x, (char *)SCM_ARG1, s_less_p); | |
2286 | # endif | |
2287 | if SCM_BIGP(x) { | |
2288 | if SCM_INUMP(y) return SCM_BIGSIGN(x) ? SCM_BOOL_T : SCM_BOOL_F; | |
2289 | SCM_ASRTGO(SCM_NIMP(y), bady); | |
2290 | if SCM_BIGP(y) return (1==scm_bigcomp(x, y)) ? SCM_BOOL_T : SCM_BOOL_F; | |
2291 | SCM_ASRTGO(SCM_REALP(y), bady); | |
2292 | return (scm_big2dbl(x) < SCM_REALPART(y)) ? SCM_BOOL_T : SCM_BOOL_F; | |
2293 | } | |
2294 | SCM_ASRTGO(SCM_REALP(x), badx); | |
2295 | # else | |
2296 | SCM_ASSERT(SCM_NIMP(x) && SCM_REALP(x), x, SCM_ARG1, s_less_p); | |
2297 | # endif | |
2298 | if (SCM_INUMP(y)) | |
2299 | return (SCM_REALPART(x) < ((double)SCM_INUM(y))) ? SCM_BOOL_T : SCM_BOOL_F; | |
2300 | # ifdef SCM_BIGDIG | |
2301 | SCM_ASRTGO(SCM_NIMP(y), bady); | |
2302 | if SCM_BIGP(y) return (SCM_REALPART(x) < scm_big2dbl(y)) ? SCM_BOOL_T : SCM_BOOL_F; | |
2303 | SCM_ASRTGO(SCM_REALP(y), bady); | |
2304 | # else | |
2305 | SCM_ASRTGO(SCM_NIMP(y) && SCM_REALP(y), bady); | |
2306 | # endif | |
2307 | return (SCM_REALPART(x) < SCM_REALPART(y)) ? SCM_BOOL_T : SCM_BOOL_F; | |
2308 | } | |
2309 | if SCM_NINUMP(y) { | |
2310 | # ifdef SCM_BIGDIG | |
2311 | SCM_ASRTGO(SCM_NIMP(y), bady); | |
2312 | if SCM_BIGP(y) return SCM_BIGSIGN(y) ? SCM_BOOL_F : SCM_BOOL_T; | |
2313 | # ifndef RECKLESS | |
2314 | if (!(SCM_REALP(y))) | |
2315 | bady: scm_wta(y, (char *)SCM_ARG2, s_less_p); | |
2316 | # endif | |
2317 | # else | |
2318 | # ifndef RECKLESS | |
2319 | if (!(SCM_NIMP(y) && SCM_REALP(y))) | |
2320 | bady: scm_wta(y, (char *)SCM_ARG2, s_less_p); | |
2321 | # endif | |
2322 | # endif | |
2323 | return (((double)SCM_INUM(x)) < SCM_REALPART(y)) ? SCM_BOOL_T : SCM_BOOL_F; | |
2324 | } | |
2325 | #else | |
2326 | # ifdef SCM_BIGDIG | |
2327 | if SCM_NINUMP(x) { | |
2328 | SCM_ASSERT(SCM_NIMP(x) && SCM_BIGP(x), x, SCM_ARG1, s_less_p); | |
2329 | if SCM_INUMP(y) return SCM_BIGSIGN(x) ? SCM_BOOL_T : SCM_BOOL_F; | |
2330 | SCM_ASRTGO(SCM_NIMP(y) && SCM_BIGP(y), bady); | |
2331 | return (1==scm_bigcomp(x, y)) ? SCM_BOOL_T : SCM_BOOL_F; | |
2332 | } | |
2333 | if SCM_NINUMP(y) { | |
2334 | # ifndef RECKLESS | |
2335 | if (!(SCM_NIMP(y) && SCM_BIGP(y))) | |
2336 | bady: scm_wta(y, (char *)SCM_ARG2, s_less_p); | |
2337 | # endif | |
2338 | return SCM_BIGSIGN(y) ? SCM_BOOL_F : SCM_BOOL_T; | |
2339 | } | |
2340 | # else | |
2341 | SCM_ASSERT(SCM_INUMP(x), x, SCM_ARG1, s_less_p); | |
2342 | SCM_ASSERT(SCM_INUMP(y), y, SCM_ARG2, s_less_p); | |
2343 | # endif | |
2344 | #endif | |
2345 | return ((long)x < (long)y) ? SCM_BOOL_T : SCM_BOOL_F; | |
2346 | } | |
2347 | ||
2348 | ||
2349 | SCM_PROC1 (s_gr_p, ">?", scm_tc7_rpsubr, scm_gr_p); | |
2350 | #ifdef __STDC__ | |
2351 | SCM | |
2352 | scm_gr_p(SCM x, SCM y) | |
2353 | #else | |
2354 | SCM | |
2355 | scm_gr_p(x, y) | |
2356 | SCM x; | |
2357 | SCM y; | |
2358 | #endif | |
2359 | { | |
2360 | return scm_less_p(y, x); | |
2361 | } | |
2362 | ||
2363 | ||
2364 | ||
2365 | SCM_PROC1 (s_leq_p, "<=?", scm_tc7_rpsubr, scm_leq_p); | |
2366 | #ifdef __STDC__ | |
2367 | SCM | |
2368 | scm_leq_p(SCM x, SCM y) | |
2369 | #else | |
2370 | SCM | |
2371 | scm_leq_p(x, y) | |
2372 | SCM x; | |
2373 | SCM y; | |
2374 | #endif | |
2375 | { | |
2376 | return SCM_BOOL_NOT(scm_less_p(y, x)); | |
2377 | } | |
2378 | ||
2379 | ||
2380 | ||
2381 | SCM_PROC1 (s_geq_p, ">=?", scm_tc7_rpsubr, scm_geq_p); | |
2382 | #ifdef __STDC__ | |
2383 | SCM | |
2384 | scm_geq_p(SCM x, SCM y) | |
2385 | #else | |
2386 | SCM | |
2387 | scm_geq_p(x, y) | |
2388 | SCM x; | |
2389 | SCM y; | |
2390 | #endif | |
2391 | { | |
2392 | return SCM_BOOL_NOT(scm_less_p(x, y)); | |
2393 | } | |
2394 | ||
2395 | ||
2396 | ||
2397 | SCM_PROC(s_zero_p, "zero?", 1, 0, 0, scm_zero_p); | |
2398 | #ifdef __STDC__ | |
2399 | SCM | |
2400 | scm_zero_p(SCM z) | |
2401 | #else | |
2402 | SCM | |
2403 | scm_zero_p(z) | |
2404 | SCM z; | |
2405 | #endif | |
2406 | { | |
2407 | #ifdef SCM_FLOATS | |
2408 | if SCM_NINUMP(z) { | |
2409 | # ifdef SCM_BIGDIG | |
2410 | SCM_ASRTGO(SCM_NIMP(z), badz); | |
2411 | if SCM_BIGP(z) return SCM_BOOL_F; | |
2412 | # ifndef RECKLESS | |
2413 | if (!(SCM_INEXP(z))) | |
2414 | badz: scm_wta(z, (char *)SCM_ARG1, s_zero_p); | |
2415 | # endif | |
2416 | # else | |
2417 | SCM_ASSERT(SCM_NIMP(z) && SCM_INEXP(z), z, SCM_ARG1, s_zero_p); | |
2418 | # endif | |
2419 | return (z==scm_flo0) ? SCM_BOOL_T : SCM_BOOL_F; | |
2420 | } | |
2421 | #else | |
2422 | # ifdef SCM_BIGDIG | |
2423 | if SCM_NINUMP(z) { | |
2424 | SCM_ASSERT(SCM_NIMP(z) && SCM_BIGP(z), z, SCM_ARG1, s_zero_p); | |
2425 | return SCM_BOOL_F; | |
2426 | } | |
2427 | # else | |
2428 | SCM_ASSERT(SCM_INUMP(z), z, SCM_ARG1, s_zero_p); | |
2429 | # endif | |
2430 | #endif | |
2431 | return (z==SCM_INUM0) ? SCM_BOOL_T: SCM_BOOL_F; | |
2432 | } | |
2433 | ||
2434 | ||
2435 | ||
2436 | SCM_PROC(s_positive_p, "positive?", 1, 0, 0, scm_positive_p); | |
2437 | #ifdef __STDC__ | |
2438 | SCM | |
2439 | scm_positive_p(SCM x) | |
2440 | #else | |
2441 | SCM | |
2442 | scm_positive_p(x) | |
2443 | SCM x; | |
2444 | #endif | |
2445 | { | |
2446 | #ifdef SCM_FLOATS | |
2447 | if SCM_NINUMP(x) { | |
2448 | # ifdef SCM_BIGDIG | |
2449 | SCM_ASRTGO(SCM_NIMP(x), badx); | |
2450 | if SCM_BIGP(x) return SCM_TYP16(x)==scm_tc16_bigpos ? SCM_BOOL_T : SCM_BOOL_F; | |
2451 | # ifndef RECKLESS | |
2452 | if (!(SCM_REALP(x))) | |
2453 | badx: scm_wta(x, (char *)SCM_ARG1, s_positive_p); | |
2454 | # endif | |
2455 | # else | |
2456 | SCM_ASSERT(SCM_NIMP(x) && SCM_REALP(x), x, SCM_ARG1, s_positive_p); | |
2457 | # endif | |
2458 | return (SCM_REALPART(x) > 0.0) ? SCM_BOOL_T : SCM_BOOL_F; | |
2459 | } | |
2460 | #else | |
2461 | # ifdef SCM_BIGDIG | |
2462 | if SCM_NINUMP(x) { | |
2463 | SCM_ASSERT(SCM_NIMP(x) && SCM_BIGP(x), x, SCM_ARG1, s_positive_p); | |
2464 | return SCM_TYP16(x)==scm_tc16_bigpos ? SCM_BOOL_T : SCM_BOOL_F; | |
2465 | } | |
2466 | # else | |
2467 | SCM_ASSERT(SCM_INUMP(x), x, SCM_ARG1, s_positive_p); | |
2468 | # endif | |
2469 | #endif | |
2470 | return (x > SCM_INUM0) ? SCM_BOOL_T : SCM_BOOL_F; | |
2471 | } | |
2472 | ||
2473 | ||
2474 | ||
2475 | SCM_PROC(s_negative_p, "negative?", 1, 0, 0, scm_negative_p); | |
2476 | #ifdef __STDC__ | |
2477 | SCM | |
2478 | scm_negative_p(SCM x) | |
2479 | #else | |
2480 | SCM | |
2481 | scm_negative_p(x) | |
2482 | SCM x; | |
2483 | #endif | |
2484 | { | |
2485 | #ifdef SCM_FLOATS | |
2486 | if SCM_NINUMP(x) { | |
2487 | # ifdef SCM_BIGDIG | |
2488 | SCM_ASRTGO(SCM_NIMP(x), badx); | |
2489 | if SCM_BIGP(x) return SCM_TYP16(x)==scm_tc16_bigpos ? SCM_BOOL_F : SCM_BOOL_T; | |
2490 | # ifndef RECKLESS | |
2491 | if (!(SCM_REALP(x))) | |
2492 | badx: scm_wta(x, (char *)SCM_ARG1, s_negative_p); | |
2493 | # endif | |
2494 | # else | |
2495 | SCM_ASSERT(SCM_NIMP(x) && SCM_REALP(x), x, SCM_ARG1, s_negative_p); | |
2496 | # endif | |
2497 | return (SCM_REALPART(x) < 0.0) ? SCM_BOOL_T : SCM_BOOL_F; | |
2498 | } | |
2499 | #else | |
2500 | # ifdef SCM_BIGDIG | |
2501 | if SCM_NINUMP(x) { | |
2502 | SCM_ASSERT(SCM_NIMP(x) && SCM_BIGP(x), x, SCM_ARG1, s_negative_p); | |
2503 | return (SCM_TYP16(x)==scm_tc16_bigneg) ? SCM_BOOL_T : SCM_BOOL_F; | |
2504 | } | |
2505 | # else | |
2506 | SCM_ASSERT(SCM_INUMP(x), x, SCM_ARG1, s_negative_p); | |
2507 | # endif | |
2508 | #endif | |
2509 | return (x < SCM_INUM0) ? SCM_BOOL_T : SCM_BOOL_F; | |
2510 | } | |
2511 | ||
2512 | ||
2513 | SCM_PROC1 (s_max, "max", scm_tc7_asubr, scm_max); | |
2514 | #ifdef __STDC__ | |
2515 | SCM | |
2516 | scm_max(SCM x, SCM y) | |
2517 | #else | |
2518 | SCM | |
2519 | scm_max(x, y) | |
2520 | SCM x; | |
2521 | SCM y; | |
2522 | #endif | |
2523 | { | |
2524 | #ifdef SCM_FLOATS | |
2525 | double z; | |
2526 | #endif | |
2527 | if SCM_UNBNDP(y) { | |
2528 | #ifndef RECKLESS | |
2529 | if (!(SCM_NUMBERP(x))) | |
2530 | badx: scm_wta(x, (char *)SCM_ARG1, s_max); | |
2531 | #endif | |
2532 | return x; | |
2533 | } | |
2534 | #ifdef SCM_FLOATS | |
2535 | if SCM_NINUMP(x) { | |
2536 | # ifdef SCM_BIGDIG | |
2537 | SCM_ASRTGO(SCM_NIMP(x), badx); | |
2538 | if SCM_BIGP(x) { | |
2539 | if SCM_INUMP(y) return SCM_BIGSIGN(x) ? y : x; | |
2540 | SCM_ASRTGO(SCM_NIMP(y), bady); | |
2541 | if SCM_BIGP(y) return (1==scm_bigcomp(x, y)) ? y : x; | |
2542 | SCM_ASRTGO(SCM_REALP(y), bady); | |
2543 | z = scm_big2dbl(x); | |
2544 | return (z < SCM_REALPART(y)) ? y : scm_makdbl(z, 0.0); | |
2545 | } | |
2546 | SCM_ASRTGO(SCM_REALP(x), badx); | |
2547 | # else | |
2548 | SCM_ASSERT(SCM_NIMP(x) && SCM_REALP(x), x, SCM_ARG1, s_max); | |
2549 | # endif | |
2550 | if (SCM_INUMP(y)) | |
2551 | return (SCM_REALPART(x) < (z = SCM_INUM(y))) ? scm_makdbl(z, 0.0) : x; | |
2552 | # ifdef SCM_BIGDIG | |
2553 | SCM_ASRTGO(SCM_NIMP(y), bady); | |
2554 | if (SCM_BIGP(y)) | |
2555 | return (SCM_REALPART(x) < (z = scm_big2dbl(y))) ? scm_makdbl(z, 0.0) : x; | |
2556 | SCM_ASRTGO(SCM_REALP(y), bady); | |
2557 | # else | |
2558 | SCM_ASRTGO(SCM_NIMP(y) && SCM_REALP(y), bady); | |
2559 | # endif | |
2560 | return (SCM_REALPART(x) < SCM_REALPART(y)) ? y : x; | |
2561 | } | |
2562 | if SCM_NINUMP(y) { | |
2563 | # ifdef SCM_BIGDIG | |
2564 | SCM_ASRTGO(SCM_NIMP(y), bady); | |
2565 | if SCM_BIGP(y) return SCM_BIGSIGN(y) ? x : y; | |
2566 | # ifndef RECKLESS | |
2567 | if (!(SCM_REALP(y))) | |
2568 | bady: scm_wta(y, (char *)SCM_ARG2, s_max); | |
2569 | # endif | |
2570 | # else | |
2571 | # ifndef RECKLESS | |
2572 | if (!(SCM_NIMP(y) && SCM_REALP(y))) | |
2573 | bady: scm_wta(y, (char *)SCM_ARG2, s_max); | |
2574 | # endif | |
2575 | # endif | |
2576 | return ((z = SCM_INUM(x)) < SCM_REALPART(y)) ? y : scm_makdbl(z, 0.0); | |
2577 | } | |
2578 | #else | |
2579 | # ifdef SCM_BIGDIG | |
2580 | if SCM_NINUMP(x) { | |
2581 | SCM_ASSERT(SCM_NIMP(x) && SCM_BIGP(x), x, SCM_ARG1, s_max); | |
2582 | if SCM_INUMP(y) return SCM_BIGSIGN(x) ? y : x; | |
2583 | SCM_ASRTGO(SCM_NIMP(y) && SCM_BIGP(y), bady); | |
2584 | return (1==scm_bigcomp(x, y)) ? y : x; | |
2585 | } | |
2586 | if SCM_NINUMP(y) { | |
2587 | # ifndef RECKLESS | |
2588 | if (!(SCM_NIMP(y) && SCM_BIGP(y))) | |
2589 | bady: scm_wta(y, (char *)SCM_ARG2, s_max); | |
2590 | # endif | |
2591 | return SCM_BIGSIGN(y) ? x : y; | |
2592 | } | |
2593 | # else | |
2594 | SCM_ASSERT(SCM_INUMP(x), x, SCM_ARG1, s_max); | |
2595 | SCM_ASSERT(SCM_INUMP(y), y, SCM_ARG2, s_max); | |
2596 | # endif | |
2597 | #endif | |
2598 | return ((long)x < (long)y) ? y : x; | |
2599 | } | |
2600 | ||
2601 | ||
2602 | ||
2603 | ||
2604 | SCM_PROC1 (s_min, "min", scm_tc7_asubr, scm_min); | |
2605 | #ifdef __STDC__ | |
2606 | SCM | |
2607 | scm_min(SCM x, SCM y) | |
2608 | #else | |
2609 | SCM | |
2610 | scm_min(x, y) | |
2611 | SCM x; | |
2612 | SCM y; | |
2613 | #endif | |
2614 | { | |
2615 | #ifdef SCM_FLOATS | |
2616 | double z; | |
2617 | #endif | |
2618 | if SCM_UNBNDP(y) { | |
2619 | #ifndef RECKLESS | |
2620 | if (!(SCM_NUMBERP(x))) | |
2621 | badx:scm_wta(x, (char *)SCM_ARG1, s_min); | |
2622 | #endif | |
2623 | return x; | |
2624 | } | |
2625 | #ifdef SCM_FLOATS | |
2626 | if SCM_NINUMP(x) { | |
2627 | # ifdef SCM_BIGDIG | |
2628 | SCM_ASRTGO(SCM_NIMP(x), badx); | |
2629 | if SCM_BIGP(x) { | |
2630 | if SCM_INUMP(y) return SCM_BIGSIGN(x) ? x : y; | |
2631 | SCM_ASRTGO(SCM_NIMP(y), bady); | |
2632 | if SCM_BIGP(y) return (-1==scm_bigcomp(x, y)) ? y : x; | |
2633 | SCM_ASRTGO(SCM_REALP(y), bady); | |
2634 | z = scm_big2dbl(x); | |
2635 | return (z > SCM_REALPART(y)) ? y : scm_makdbl(z, 0.0); | |
2636 | } | |
2637 | SCM_ASRTGO(SCM_REALP(x), badx); | |
2638 | # else | |
2639 | SCM_ASSERT(SCM_NIMP(x) && SCM_REALP(x), x, SCM_ARG1, s_min); | |
2640 | # endif | |
2641 | if SCM_INUMP(y) return (SCM_REALPART(x) > (z = SCM_INUM(y))) ? scm_makdbl(z, 0.0) : x; | |
2642 | # ifdef SCM_BIGDIG | |
2643 | SCM_ASRTGO(SCM_NIMP(y), bady); | |
2644 | if SCM_BIGP(y) return (SCM_REALPART(x) > (z = scm_big2dbl(y))) ? scm_makdbl(z, 0.0) : x; | |
2645 | SCM_ASRTGO(SCM_REALP(y), bady); | |
2646 | # else | |
2647 | SCM_ASRTGO(SCM_NIMP(y) && SCM_REALP(y), bady); | |
2648 | # endif | |
2649 | return (SCM_REALPART(x) > SCM_REALPART(y)) ? y : x; | |
2650 | } | |
2651 | if SCM_NINUMP(y) { | |
2652 | # ifdef SCM_BIGDIG | |
2653 | SCM_ASRTGO(SCM_NIMP(y), bady); | |
2654 | if SCM_BIGP(y) return SCM_BIGSIGN(y) ? y : x; | |
2655 | # ifndef RECKLESS | |
2656 | if (!(SCM_REALP(y))) | |
2657 | bady: scm_wta(y, (char *)SCM_ARG2, s_min); | |
2658 | # endif | |
2659 | # else | |
2660 | # ifndef RECKLESS | |
2661 | if (!(SCM_NIMP(y) && SCM_REALP(y))) | |
2662 | bady: scm_wta(y, (char *)SCM_ARG2, s_min); | |
2663 | # endif | |
2664 | # endif | |
2665 | return ((z = SCM_INUM(x)) > SCM_REALPART(y)) ? y : scm_makdbl(z, 0.0); | |
2666 | } | |
2667 | #else | |
2668 | # ifdef SCM_BIGDIG | |
2669 | if SCM_NINUMP(x) { | |
2670 | SCM_ASSERT(SCM_NIMP(x) && SCM_BIGP(x), x, SCM_ARG1, s_min); | |
2671 | if SCM_INUMP(y) return SCM_BIGSIGN(x) ? x : y; | |
2672 | SCM_ASRTGO(SCM_NIMP(y) && SCM_BIGP(y), bady); | |
2673 | return (-1==scm_bigcomp(x, y)) ? y : x; | |
2674 | } | |
2675 | if SCM_NINUMP(y) { | |
2676 | # ifndef RECKLESS | |
2677 | if (!(SCM_NIMP(y) && SCM_BIGP(y))) | |
2678 | bady: scm_wta(y, (char *)SCM_ARG2, s_min); | |
2679 | # endif | |
2680 | return SCM_BIGSIGN(y) ? y : x; | |
2681 | } | |
2682 | # else | |
2683 | SCM_ASSERT(SCM_INUMP(x), x, SCM_ARG1, s_min); | |
2684 | SCM_ASSERT(SCM_INUMP(y), y, SCM_ARG2, s_min); | |
2685 | # endif | |
2686 | #endif | |
2687 | return ((long)x > (long)y) ? y : x; | |
2688 | } | |
2689 | ||
2690 | ||
2691 | ||
2692 | ||
2693 | SCM_PROC1 (s_sum, "+", scm_tc7_asubr, scm_sum); | |
2694 | #ifdef __STDC__ | |
2695 | SCM | |
2696 | scm_sum(SCM x, SCM y) | |
2697 | #else | |
2698 | SCM | |
2699 | scm_sum(x, y) | |
2700 | SCM x; | |
2701 | SCM y; | |
2702 | #endif | |
2703 | { | |
2704 | if SCM_UNBNDP(y) { | |
2705 | if SCM_UNBNDP(x) return SCM_INUM0; | |
2706 | #ifndef RECKLESS | |
2707 | if (!(SCM_NUMBERP(x))) | |
2708 | badx: scm_wta(x, (char *)SCM_ARG1, s_sum); | |
2709 | #endif | |
2710 | return x; | |
2711 | } | |
2712 | #ifdef SCM_FLOATS | |
2713 | if SCM_NINUMP(x) { | |
2714 | SCM t; | |
2715 | # ifdef SCM_BIGDIG | |
2716 | SCM_ASRTGO(SCM_NIMP(x), badx); | |
2717 | if SCM_BIGP(x) { | |
2718 | if SCM_INUMP(y) {t = x; x = y; y = t; goto intbig;} | |
2719 | SCM_ASRTGO(SCM_NIMP(y), bady); | |
2720 | if SCM_BIGP(y) { | |
2721 | if (SCM_NUMDIGS(x) > SCM_NUMDIGS(y)) {t = x; x = y; y = t;} | |
2722 | return scm_addbig(SCM_BDIGITS(x), SCM_NUMDIGS(x), SCM_BIGSIGN(x), y, 0); | |
2723 | } | |
2724 | SCM_ASRTGO(SCM_INEXP(y), bady); | |
2725 | bigreal: return scm_makdbl(scm_big2dbl(x)+SCM_REALPART(y), SCM_CPLXP(y)?SCM_IMAG(y):0.0); | |
2726 | } | |
2727 | SCM_ASRTGO(SCM_INEXP(x), badx); | |
2728 | # else | |
2729 | SCM_ASRTGO(SCM_NIMP(x) && SCM_INEXP(x), badx); | |
2730 | # endif | |
2731 | if SCM_INUMP(y) {t = x; x = y; y = t; goto intreal;} | |
2732 | # ifdef SCM_BIGDIG | |
2733 | SCM_ASRTGO(SCM_NIMP(y), bady); | |
2734 | if SCM_BIGP(y) {t = x; x = y; y = t; goto bigreal;} | |
2735 | # ifndef RECKLESS | |
2736 | else if (!(SCM_INEXP(y))) | |
2737 | bady: scm_wta(y, (char *)SCM_ARG2, s_sum); | |
2738 | # endif | |
2739 | # else | |
2740 | # ifndef RECKLESS | |
2741 | if (!(SCM_NIMP(y) && SCM_INEXP(y))) | |
2742 | bady: scm_wta(y, (char *)SCM_ARG2, s_sum); | |
2743 | # endif | |
2744 | # endif | |
2745 | { double i = 0.0; | |
2746 | if SCM_CPLXP(x) i = SCM_IMAG(x); | |
2747 | if SCM_CPLXP(y) i += SCM_IMAG(y); | |
2748 | return scm_makdbl(SCM_REALPART(x)+SCM_REALPART(y), i); } | |
2749 | } | |
2750 | if SCM_NINUMP(y) { | |
2751 | # ifdef SCM_BIGDIG | |
2752 | SCM_ASRTGO(SCM_NIMP(y), bady); | |
2753 | if SCM_BIGP(y) | |
2754 | intbig: { | |
2755 | # ifndef SCM_DIGSTOOBIG | |
2756 | long z = scm_pseudolong(SCM_INUM(x)); | |
2757 | return scm_addbig((SCM_BIGDIG *)&z, SCM_DIGSPERLONG, (x < 0) ? 0x0100 : 0, y, 0); | |
2758 | # else | |
2759 | SCM_BIGDIG zdigs[SCM_DIGSPERLONG]; | |
2760 | scm_longdigs(SCM_INUM(x), zdigs); | |
2761 | return scm_addbig(zdigs, SCM_DIGSPERLONG, (x < 0) ? 0x0100 : 0, y, 0); | |
2762 | # endif | |
2763 | } | |
2764 | SCM_ASRTGO(SCM_INEXP(y), bady); | |
2765 | # else | |
2766 | SCM_ASRTGO(SCM_NIMP(y) && SCM_INEXP(y), bady); | |
2767 | # endif | |
2768 | intreal: return scm_makdbl(SCM_INUM(x)+SCM_REALPART(y), SCM_CPLXP(y)?SCM_IMAG(y):0.0); | |
2769 | } | |
2770 | #else | |
2771 | # ifdef SCM_BIGDIG | |
2772 | if SCM_NINUMP(x) { | |
2773 | SCM t; | |
2774 | SCM_ASRTGO(SCM_NIMP(x) && SCM_BIGP(x), badx); | |
2775 | if SCM_INUMP(y) {t = x; x = y; y = t; goto intbig;} | |
2776 | SCM_ASRTGO(SCM_NIMP(y) && SCM_BIGP(y), bady); | |
2777 | if (SCM_NUMDIGS(x) > SCM_NUMDIGS(y)) {t = x; x = y; y = t;} | |
2778 | return scm_addbig(SCM_BDIGITS(x), SCM_NUMDIGS(x), SCM_BIGSIGN(x), y, 0); | |
2779 | } | |
2780 | if SCM_NINUMP(y) { | |
2781 | # ifndef RECKLESS | |
2782 | if (!(SCM_NIMP(y) && SCM_BIGP(y))) | |
2783 | bady: scm_wta(y, (char *)SCM_ARG2, s_sum); | |
2784 | # endif | |
2785 | intbig: { | |
2786 | # ifndef SCM_DIGSTOOBIG | |
2787 | long z = scm_pseudolong(SCM_INUM(x)); | |
2788 | return scm_addbig(&z, SCM_DIGSPERLONG, (x < 0) ? 0x0100 : 0, y, 0); | |
2789 | # else | |
2790 | SCM_BIGDIG zdigs[SCM_DIGSPERLONG]; | |
2791 | scm_longdigs(SCM_INUM(x), zdigs); | |
2792 | return scm_addbig(zdigs, SCM_DIGSPERLONG, (x < 0) ? 0x0100 : 0, y, 0); | |
2793 | # endif | |
2794 | } | |
2795 | } | |
2796 | # else | |
2797 | SCM_ASRTGO(SCM_INUMP(x), badx); | |
2798 | SCM_ASSERT(SCM_INUMP(y), y, SCM_ARG2, s_sum); | |
2799 | # endif | |
2800 | #endif | |
2801 | x = SCM_INUM(x)+SCM_INUM(y); | |
2802 | if SCM_FIXABLE(x) return SCM_MAKINUM(x); | |
2803 | #ifdef SCM_BIGDIG | |
2804 | return scm_long2big(x); | |
2805 | #else | |
2806 | # ifdef SCM_FLOATS | |
2807 | return scm_makdbl((double)x, 0.0); | |
2808 | # else | |
2809 | scm_wta(y, (char *)SCM_OVSCM_FLOW, s_sum); | |
2810 | return SCM_UNSPECIFIED; | |
2811 | # endif | |
2812 | #endif | |
2813 | } | |
2814 | ||
2815 | ||
2816 | ||
2817 | ||
2818 | SCM_PROC1 (s_difference, "-", scm_tc7_asubr, scm_difference); | |
2819 | #ifdef __STDC__ | |
2820 | SCM | |
2821 | scm_difference(SCM x, SCM y) | |
2822 | #else | |
2823 | SCM | |
2824 | scm_difference(x, y) | |
2825 | SCM x; | |
2826 | SCM y; | |
2827 | #endif | |
2828 | { | |
2829 | #ifdef SCM_FLOATS | |
2830 | if SCM_NINUMP(x) { | |
2831 | # ifndef RECKLESS | |
2832 | if (!(SCM_NIMP(x))) | |
2833 | badx: scm_wta(x, (char *)SCM_ARG1, s_difference); | |
2834 | # endif | |
2835 | if SCM_UNBNDP(y) { | |
2836 | # ifdef SCM_BIGDIG | |
2837 | if SCM_BIGP(x) { | |
2838 | x = scm_copybig(x, !SCM_BIGSIGN(x)); | |
2839 | return SCM_NUMDIGS(x) * SCM_BITSPERDIG/SCM_CHAR_BIT <= sizeof(SCM) ? | |
2840 | scm_big2inum(x, SCM_NUMDIGS(x)) : x; | |
2841 | } | |
2842 | # endif | |
2843 | SCM_ASRTGO(SCM_INEXP(x), badx); | |
2844 | return scm_makdbl(-SCM_REALPART(x), SCM_CPLXP(x)?-SCM_IMAG(x):0.0); | |
2845 | } | |
2846 | if SCM_INUMP(y) return scm_sum(x, SCM_MAKINUM(-SCM_INUM(y))); | |
2847 | # ifdef SCM_BIGDIG | |
2848 | SCM_ASRTGO(SCM_NIMP(y), bady); | |
2849 | if SCM_BIGP(x) { | |
2850 | if SCM_BIGP(y) return (SCM_NUMDIGS(x) < SCM_NUMDIGS(y)) ? | |
2851 | scm_addbig(SCM_BDIGITS(x), SCM_NUMDIGS(x), SCM_BIGSIGN(x), y, 0x0100) : | |
2852 | scm_addbig(SCM_BDIGITS(y), SCM_NUMDIGS(y), SCM_BIGSIGN(y) ^ 0x0100, x, 0); | |
2853 | SCM_ASRTGO(SCM_INEXP(y), bady); | |
2854 | return scm_makdbl(scm_big2dbl(x)-SCM_REALPART(y), SCM_CPLXP(y)?-SCM_IMAG(y):0.0); | |
2855 | } | |
2856 | SCM_ASRTGO(SCM_INEXP(x), badx); | |
2857 | if SCM_BIGP(y) return scm_makdbl(SCM_REALPART(x)-scm_big2dbl(y), SCM_CPLXP(x)?SCM_IMAG(x):0.0); | |
2858 | SCM_ASRTGO(SCM_INEXP(y), bady); | |
2859 | # else | |
2860 | SCM_ASRTGO(SCM_INEXP(x), badx); | |
2861 | SCM_ASRTGO(SCM_NIMP(y) && SCM_INEXP(y), bady); | |
2862 | # endif | |
2863 | if SCM_CPLXP(x) | |
2864 | if SCM_CPLXP(y) | |
2865 | return scm_makdbl(SCM_REAL(x)-SCM_REAL(y), SCM_IMAG(x)-SCM_IMAG(y)); | |
2866 | else | |
2867 | return scm_makdbl(SCM_REAL(x)-SCM_REALPART(y), SCM_IMAG(x)); | |
2868 | return scm_makdbl(SCM_REALPART(x)-SCM_REALPART(y), SCM_CPLXP(y)?-SCM_IMAG(y):0.0); | |
2869 | } | |
2870 | if SCM_UNBNDP(y) {x = -SCM_INUM(x); goto checkx;} | |
2871 | if SCM_NINUMP(y) { | |
2872 | # ifdef SCM_BIGDIG | |
2873 | SCM_ASRTGO(SCM_NIMP(y), bady); | |
2874 | if SCM_BIGP(y) { | |
2875 | # ifndef SCM_DIGSTOOBIG | |
2876 | long z = scm_pseudolong(SCM_INUM(x)); | |
2877 | return scm_addbig((SCM_BIGDIG *)&z, SCM_DIGSPERLONG, (x < 0) ? 0x0100 : 0, y, 0x0100); | |
2878 | # else | |
2879 | SCM_BIGDIG zdigs[SCM_DIGSPERLONG]; | |
2880 | scm_longdigs(SCM_INUM(x), zdigs); | |
2881 | return scm_addbig(zdigs, SCM_DIGSPERLONG, (x < 0) ? 0x0100 : 0, y, 0x0100); | |
2882 | # endif | |
2883 | } | |
2884 | # ifndef RECKLESS | |
2885 | if (!(SCM_INEXP(y))) | |
2886 | bady: scm_wta(y, (char *)SCM_ARG2, s_difference); | |
2887 | # endif | |
2888 | # else | |
2889 | # ifndef RECKLESS | |
2890 | if (!(SCM_NIMP(y) && SCM_INEXP(y))) | |
2891 | bady: scm_wta(y, (char *)SCM_ARG2, s_difference); | |
2892 | # endif | |
2893 | # endif | |
2894 | return scm_makdbl(SCM_INUM(x)-SCM_REALPART(y), SCM_CPLXP(y)?-SCM_IMAG(y):0.0); | |
2895 | } | |
2896 | #else | |
2897 | # ifdef SCM_BIGDIG | |
2898 | if SCM_NINUMP(x) { | |
2899 | SCM_ASSERT(SCM_NIMP(x) && SCM_BIGP(x), x, SCM_ARG1, s_difference); | |
2900 | if SCM_UNBNDP(y) { | |
2901 | x = scm_copybig(x, !SCM_BIGSIGN(x)); | |
2902 | return SCM_NUMDIGS(x) * SCM_BITSPERDIG/SCM_CHAR_BIT <= sizeof(SCM) ? | |
2903 | scm_big2inum(x, SCM_NUMDIGS(x)) : x; | |
2904 | } | |
2905 | if SCM_INUMP(y) { | |
2906 | # ifndef SCM_DIGSTOOBIG | |
2907 | long z = scm_pseudolong(SCM_INUM(y)); | |
2908 | return scm_addbig(&z, SCM_DIGSPERLONG, (y < 0) ? 0 : 0x0100, x, 0); | |
2909 | # else | |
2910 | SCM_BIGDIG zdigs[SCM_DIGSPERLONG]; | |
2911 | scm_longdigs(SCM_INUM(x), zdigs); | |
2912 | return scm_addbig(zdigs, SCM_DIGSPERLONG, (y < 0) ? 0 : 0x0100, x, 0); | |
2913 | # endif | |
2914 | } | |
2915 | SCM_ASRTGO(SCM_NIMP(y) && SCM_BIGP(y), bady); | |
2916 | return (SCM_NUMDIGS(x) < SCM_NUMDIGS(y)) ? | |
2917 | scm_addbig(SCM_BDIGITS(x), SCM_NUMDIGS(x), SCM_BIGSIGN(x), y, 0x0100) : | |
2918 | scm_addbig(SCM_BDIGITS(y), SCM_NUMDIGS(y), SCM_BIGSIGN(y) ^ 0x0100, x, 0); | |
2919 | } | |
2920 | if SCM_UNBNDP(y) {x = -SCM_INUM(x); goto checkx;} | |
2921 | if SCM_NINUMP(y) { | |
2922 | # ifndef RECKLESS | |
2923 | if (!(SCM_NIMP(y) && SCM_BIGP(y))) | |
2924 | bady: scm_wta(y, (char *)SCM_ARG2, s_difference); | |
2925 | # endif | |
2926 | { | |
2927 | # ifndef SCM_DIGSTOOBIG | |
2928 | long z = scm_pseudolong(SCM_INUM(x)); | |
2929 | return scm_addbig(&z, SCM_DIGSPERLONG, (x < 0) ? 0x0100 : 0, y, 0x0100); | |
2930 | # else | |
2931 | SCM_BIGDIG zdigs[SCM_DIGSPERLONG]; | |
2932 | scm_longdigs(SCM_INUM(x), zdigs); | |
2933 | return scm_addbig(zdigs, SCM_DIGSPERLONG, (x < 0) ? 0x0100 : 0, y, 0x0100); | |
2934 | # endif | |
2935 | } | |
2936 | } | |
2937 | # else | |
2938 | SCM_ASSERT(SCM_INUMP(x), x, SCM_ARG1, s_difference); | |
2939 | if SCM_UNBNDP(y) {x = -SCM_INUM(x); goto checkx;} | |
2940 | SCM_ASSERT(SCM_INUMP(y), y, SCM_ARG2, s_difference); | |
2941 | # endif | |
2942 | #endif | |
2943 | x = SCM_INUM(x)-SCM_INUM(y); | |
2944 | checkx: | |
2945 | if SCM_FIXABLE(x) return SCM_MAKINUM(x); | |
2946 | #ifdef SCM_BIGDIG | |
2947 | return scm_long2big(x); | |
2948 | #else | |
2949 | # ifdef SCM_FLOATS | |
2950 | return scm_makdbl((double)x, 0.0); | |
2951 | # else | |
2952 | scm_wta(y, (char *)SCM_OVSCM_FLOW, s_difference); | |
2953 | return SCM_UNSPECIFIED; | |
2954 | # endif | |
2955 | #endif | |
2956 | } | |
2957 | ||
2958 | ||
2959 | ||
2960 | ||
2961 | SCM_PROC1 (s_product, "*", scm_tc7_asubr, scm_product); | |
2962 | #ifdef __STDC__ | |
2963 | SCM | |
2964 | scm_product(SCM x, SCM y) | |
2965 | #else | |
2966 | SCM | |
2967 | scm_product(x, y) | |
2968 | SCM x; | |
2969 | SCM y; | |
2970 | #endif | |
2971 | { | |
2972 | if SCM_UNBNDP(y) { | |
2973 | if SCM_UNBNDP(x) return SCM_MAKINUM(1L); | |
2974 | #ifndef RECKLESS | |
2975 | if (!(SCM_NUMBERP(x))) | |
2976 | badx: scm_wta(x, (char *)SCM_ARG1, s_product); | |
2977 | #endif | |
2978 | return x; | |
2979 | } | |
2980 | #ifdef SCM_FLOATS | |
2981 | if SCM_NINUMP(x) { | |
2982 | SCM t; | |
2983 | # ifdef SCM_BIGDIG | |
2984 | SCM_ASRTGO(SCM_NIMP(x), badx); | |
2985 | if SCM_BIGP(x) { | |
2986 | if SCM_INUMP(y) {t = x; x = y; y = t; goto intbig;} | |
2987 | SCM_ASRTGO(SCM_NIMP(y), bady); | |
2988 | if SCM_BIGP(y) return scm_mulbig(SCM_BDIGITS(x), SCM_NUMDIGS(x), SCM_BDIGITS(y), SCM_NUMDIGS(y), | |
2989 | SCM_BIGSIGN(x) ^ SCM_BIGSIGN(y)); | |
2990 | SCM_ASRTGO(SCM_INEXP(y), bady); | |
2991 | bigreal: { | |
2992 | double bg = scm_big2dbl(x); | |
2993 | return scm_makdbl(bg*SCM_REALPART(y), SCM_CPLXP(y)?bg*SCM_IMAG(y):0.0); } | |
2994 | } | |
2995 | SCM_ASRTGO(SCM_INEXP(x), badx); | |
2996 | # else | |
2997 | SCM_ASRTGO(SCM_NIMP(x) && SCM_INEXP(x), badx); | |
2998 | # endif | |
2999 | if SCM_INUMP(y) {t = x; x = y; y = t; goto intreal;} | |
3000 | # ifdef SCM_BIGDIG | |
3001 | SCM_ASRTGO(SCM_NIMP(y), bady); | |
3002 | if SCM_BIGP(y) {t = x; x = y; y = t; goto bigreal;} | |
3003 | # ifndef RECKLESS | |
3004 | else if (!(SCM_INEXP(y))) | |
3005 | bady: scm_wta(y, (char *)SCM_ARG2, s_product); | |
3006 | # endif | |
3007 | # else | |
3008 | # ifndef RECKLESS | |
3009 | if (!(SCM_NIMP(y) && SCM_INEXP(y))) | |
3010 | bady: scm_wta(y, (char *)SCM_ARG2, s_product); | |
3011 | # endif | |
3012 | # endif | |
3013 | if SCM_CPLXP(x) | |
3014 | if SCM_CPLXP(y) | |
3015 | return scm_makdbl(SCM_REAL(x)*SCM_REAL(y)-SCM_IMAG(x)*SCM_IMAG(y), | |
3016 | SCM_REAL(x)*SCM_IMAG(y)+SCM_IMAG(x)*SCM_REAL(y)); | |
3017 | else | |
3018 | return scm_makdbl(SCM_REAL(x)*SCM_REALPART(y), SCM_IMAG(x)*SCM_REALPART(y)); | |
3019 | return scm_makdbl(SCM_REALPART(x)*SCM_REALPART(y), | |
3020 | SCM_CPLXP(y)?SCM_REALPART(x)*SCM_IMAG(y):0.0); | |
3021 | } | |
3022 | if SCM_NINUMP(y) { | |
3023 | # ifdef SCM_BIGDIG | |
3024 | SCM_ASRTGO(SCM_NIMP(y), bady); | |
3025 | if SCM_BIGP(y) { | |
3026 | intbig: if (SCM_INUM0==x) return x; if (SCM_MAKINUM(1L)==x) return y; | |
3027 | { | |
3028 | # ifndef SCM_DIGSTOOBIG | |
3029 | long z = scm_pseudolong(SCM_INUM(x)); | |
3030 | return scm_mulbig((SCM_BIGDIG *)&z, SCM_DIGSPERLONG, SCM_BDIGITS(y), SCM_NUMDIGS(y), | |
3031 | SCM_BIGSIGN(y) ? (x>0) : (x<0)); | |
3032 | # else | |
3033 | SCM_BIGDIG zdigs[SCM_DIGSPERLONG]; | |
3034 | scm_longdigs(SCM_INUM(x), zdigs); | |
3035 | return scm_mulbig(zdigs, SCM_DIGSPERLONG, SCM_BDIGITS(y), SCM_NUMDIGS(y), | |
3036 | SCM_BIGSIGN(y) ? (x>0) : (x<0)); | |
3037 | # endif | |
3038 | } | |
3039 | } | |
3040 | SCM_ASRTGO(SCM_INEXP(y), bady); | |
3041 | # else | |
3042 | SCM_ASRTGO(SCM_NIMP(y) && SCM_INEXP(y), bady); | |
3043 | # endif | |
3044 | intreal: return scm_makdbl(SCM_INUM(x)*SCM_REALPART(y), SCM_CPLXP(y)?SCM_INUM(x)*SCM_IMAG(y):0.0); | |
3045 | } | |
3046 | #else | |
3047 | # ifdef SCM_BIGDIG | |
3048 | if SCM_NINUMP(x) { | |
3049 | SCM_ASRTGO(SCM_NIMP(x) && SCM_BIGP(x), badx); | |
3050 | if SCM_INUMP(y) {SCM t = x; x = y; y = t; goto intbig;} | |
3051 | SCM_ASRTGO(SCM_NIMP(y) && SCM_BIGP(y), bady); | |
3052 | return scm_mulbig(SCM_BDIGITS(x), SCM_NUMDIGS(x), SCM_BDIGITS(y), SCM_NUMDIGS(y), | |
3053 | SCM_BIGSIGN(x) ^ SCM_BIGSIGN(y)); | |
3054 | } | |
3055 | if SCM_NINUMP(y) { | |
3056 | # ifndef RECKLESS | |
3057 | if (!(SCM_NIMP(y) && SCM_BIGP(y))) | |
3058 | bady: scm_wta(y, (char *)SCM_ARG2, s_product); | |
3059 | # endif | |
3060 | intbig: if (SCM_INUM0==x) return x; if (SCM_MAKINUM(1L)==x) return y; | |
3061 | { | |
3062 | # ifndef SCM_DIGSTOOBIG | |
3063 | long z = scm_pseudolong(SCM_INUM(x)); | |
3064 | return scm_mulbig(&z, SCM_DIGSPERLONG, SCM_BDIGITS(y), SCM_NUMDIGS(y), | |
3065 | SCM_BIGSIGN(y) ? (x>0) : (x<0)); | |
3066 | # else | |
3067 | SCM_BIGDIG zdigs[SCM_DIGSPERLONG]; | |
3068 | scm_longdigs(SCM_INUM(x), zdigs); | |
3069 | return scm_mulbig(zdigs, SCM_DIGSPERLONG, SCM_BDIGITS(y), SCM_NUMDIGS(y), | |
3070 | SCM_BIGSIGN(y) ? (x>0) : (x<0)); | |
3071 | # endif | |
3072 | } | |
3073 | } | |
3074 | # else | |
3075 | SCM_ASRTGO(SCM_INUMP(x), badx); | |
3076 | SCM_ASSERT(SCM_INUMP(y), y, SCM_ARG2, s_product); | |
3077 | # endif | |
3078 | #endif | |
3079 | { | |
3080 | long i, j, k; | |
3081 | i = SCM_INUM(x); | |
3082 | if (0==i) return x; | |
3083 | j = SCM_INUM(y); | |
3084 | k = i * j; | |
3085 | y = SCM_MAKINUM(k); | |
3086 | if (k != SCM_INUM(y) || k/i != j) | |
3087 | #ifdef SCM_BIGDIG | |
3088 | { int sgn = (i < 0) ^ (j < 0); | |
3089 | # ifndef SCM_DIGSTOOBIG | |
3090 | i = scm_pseudolong(i); | |
3091 | j = scm_pseudolong(j); | |
3092 | return scm_mulbig((SCM_BIGDIG *)&i, SCM_DIGSPERLONG, | |
3093 | (SCM_BIGDIG *)&j, SCM_DIGSPERLONG, sgn); | |
3094 | # else /* SCM_DIGSTOOBIG */ | |
3095 | SCM_BIGDIG idigs[SCM_DIGSPERLONG]; | |
3096 | SCM_BIGDIG jdigs[SCM_DIGSPERLONG]; | |
3097 | scm_longdigs(i, idigs); | |
3098 | scm_longdigs(j, jdigs); | |
3099 | return scm_mulbig(idigs, SCM_DIGSPERLONG, jdigs, SCM_DIGSPERLONG, sgn); | |
3100 | # endif | |
3101 | } | |
3102 | #else | |
3103 | # ifdef SCM_FLOATS | |
3104 | return scm_makdbl(((double)i)*((double)j), 0.0); | |
3105 | # else | |
3106 | scm_wta(y, (char *)SCM_OVSCM_FLOW, s_product); | |
3107 | # endif | |
3108 | #endif | |
3109 | return y; | |
3110 | } | |
3111 | } | |
3112 | ||
3113 | ||
3114 | #ifdef __STDC__ | |
3115 | double | |
3116 | scm_num2dbl (SCM a, char * why) | |
3117 | #else | |
3118 | double | |
3119 | scm_num2dbl (a, why) | |
3120 | SCM a; | |
3121 | char * why; | |
3122 | #endif | |
3123 | { | |
3124 | if (SCM_INUMP (a)) | |
3125 | return (double) SCM_INUM (a); | |
3126 | #ifdef SCM_FLOATS | |
3127 | SCM_ASSERT (SCM_NIMP (a), a, "wrong type argument", why); | |
3128 | if (SCM_REALP (a)) | |
3129 | return (SCM_REALPART (a)); | |
3130 | #endif | |
3131 | #ifdef SCM_BIGDIG | |
3132 | return scm_big2dbl (a); | |
3133 | #endif | |
3134 | SCM_ASSERT (0, a, "wrong type argument", why); | |
3135 | return SCM_UNSPECIFIED; | |
3136 | } | |
3137 | ||
3138 | ||
3139 | SCM_PROC(s_fuck, "fuck", 1, 0, 0, scm_fuck); | |
3140 | #ifdef __STDC__ | |
3141 | SCM | |
3142 | scm_fuck (SCM a) | |
3143 | #else | |
3144 | SCM | |
3145 | scm_fuck (a) | |
3146 | SCM a; | |
3147 | #endif | |
3148 | { | |
3149 | return scm_makdbl (scm_num2dbl (a, "just because"), 0.0); | |
3150 | } | |
3151 | ||
3152 | SCM_PROC1 (s_divide, "/", scm_tc7_asubr, scm_divide); | |
3153 | #ifdef __STDC__ | |
3154 | SCM | |
3155 | scm_divide(SCM x, SCM y) | |
3156 | #else | |
3157 | SCM | |
3158 | scm_divide(x, y) | |
3159 | SCM x; | |
3160 | SCM y; | |
3161 | #endif | |
3162 | { | |
3163 | #ifdef SCM_FLOATS | |
3164 | double d, r, i, a; | |
3165 | if SCM_NINUMP(x) { | |
3166 | # ifndef RECKLESS | |
3167 | if (!(SCM_NIMP(x))) | |
3168 | badx: scm_wta(x, (char *)SCM_ARG1, s_divide); | |
3169 | # endif | |
3170 | if SCM_UNBNDP(y) { | |
3171 | # ifdef SCM_BIGDIG | |
3172 | if SCM_BIGP(x) return scm_makdbl(1.0/scm_big2dbl(x), 0.0); | |
3173 | # endif | |
3174 | SCM_ASRTGO(SCM_INEXP(x), badx); | |
3175 | if SCM_REALP(x) return scm_makdbl(1.0/SCM_REALPART(x), 0.0); | |
3176 | r = SCM_REAL(x); i = SCM_IMAG(x); d = r*r+i*i; | |
3177 | return scm_makdbl(r/d, -i/d); | |
3178 | } | |
3179 | # ifdef SCM_BIGDIG | |
3180 | if SCM_BIGP(x) { | |
3181 | SCM z; | |
3182 | if SCM_INUMP(y) { | |
3183 | z = SCM_INUM(y); | |
3184 | SCM_ASSERT(z, y, SCM_OVSCM_FLOW, s_divide); | |
3185 | if (1==z) return x; | |
3186 | if (z < 0) z = -z; | |
3187 | if (z < SCM_BIGRAD) { | |
3188 | SCM w = scm_copybig(x, SCM_BIGSIGN(x) ? (y>0) : (y<0)); | |
3189 | return scm_divbigdig(SCM_BDIGITS(w), SCM_NUMDIGS(w), (SCM_BIGDIG)z) ? | |
3190 | scm_makdbl(scm_big2dbl(x)/SCM_INUM(y), 0.0) : scm_normbig(w); | |
3191 | } | |
3192 | # ifndef SCM_DIGSTOOBIG | |
3193 | z = scm_pseudolong(z); | |
3194 | z = scm_divbigbig(SCM_BDIGITS(x), SCM_NUMDIGS(x), (SCM_BIGDIG *)&z, SCM_DIGSPERLONG, | |
3195 | SCM_BIGSIGN(x) ? (y>0) : (y<0), 3); | |
3196 | # else | |
3197 | { SCM_BIGDIG zdigs[SCM_DIGSPERLONG]; | |
3198 | scm_longdigs(z, zdigs); | |
3199 | z = scm_divbigbig(SCM_BDIGITS(x), SCM_NUMDIGS(x), zdigs, SCM_DIGSPERLONG, | |
3200 | SCM_BIGSIGN(x) ? (y>0) : (y<0), 3);} | |
3201 | # endif | |
3202 | return z ? z : scm_makdbl(scm_big2dbl(x)/SCM_INUM(y), 0.0); | |
3203 | } | |
3204 | SCM_ASRTGO(SCM_NIMP(y), bady); | |
3205 | if SCM_BIGP(y) { | |
3206 | z = scm_divbigbig(SCM_BDIGITS(x), SCM_NUMDIGS(x), SCM_BDIGITS(y), SCM_NUMDIGS(y), | |
3207 | SCM_BIGSIGN(x) ^ SCM_BIGSIGN(y), 3); | |
3208 | return z ? z : scm_makdbl(scm_big2dbl(x)/scm_big2dbl(y), 0.0); | |
3209 | } | |
3210 | SCM_ASRTGO(SCM_INEXP(y), bady); | |
3211 | if SCM_REALP(y) return scm_makdbl(scm_big2dbl(x)/SCM_REALPART(y), 0.0); | |
3212 | a = scm_big2dbl(x); | |
3213 | goto complex_div; | |
3214 | } | |
3215 | # endif | |
3216 | SCM_ASRTGO(SCM_INEXP(x), badx); | |
3217 | if SCM_INUMP(y) {d = SCM_INUM(y); goto basic_div;} | |
3218 | # ifdef SCM_BIGDIG | |
3219 | SCM_ASRTGO(SCM_NIMP(y), bady); | |
3220 | if SCM_BIGP(y) {d = scm_big2dbl(y); goto basic_div;} | |
3221 | SCM_ASRTGO(SCM_INEXP(y), bady); | |
3222 | # else | |
3223 | SCM_ASRTGO(SCM_NIMP(y) && SCM_INEXP(y), bady); | |
3224 | # endif | |
3225 | if SCM_REALP(y) { | |
3226 | d = SCM_REALPART(y); | |
3227 | basic_div: return scm_makdbl(SCM_REALPART(x)/d, SCM_CPLXP(x)?SCM_IMAG(x)/d:0.0); | |
3228 | } | |
3229 | a = SCM_REALPART(x); | |
3230 | if SCM_REALP(x) goto complex_div; | |
3231 | r = SCM_REAL(y); i = SCM_IMAG(y); d = r*r+i*i; | |
3232 | return scm_makdbl((a*r+SCM_IMAG(x)*i)/d, (SCM_IMAG(x)*r-a*i)/d); | |
3233 | } | |
3234 | if SCM_UNBNDP(y) { | |
3235 | if ((SCM_MAKINUM(1L)==x) || (SCM_MAKINUM(-1L)==x)) return x; | |
3236 | return scm_makdbl(1.0/((double)SCM_INUM(x)), 0.0); | |
3237 | } | |
3238 | if SCM_NINUMP(y) { | |
3239 | # ifdef SCM_BIGDIG | |
3240 | SCM_ASRTGO(SCM_NIMP(y), bady); | |
3241 | if SCM_BIGP(y) return scm_makdbl(SCM_INUM(x)/scm_big2dbl(y), 0.0); | |
3242 | # ifndef RECKLESS | |
3243 | if (!(SCM_INEXP(y))) | |
3244 | bady: scm_wta(y, (char *)SCM_ARG2, s_divide); | |
3245 | # endif | |
3246 | # else | |
3247 | # ifndef RECKLESS | |
3248 | if (!(SCM_NIMP(y) && SCM_INEXP(y))) | |
3249 | bady: scm_wta(y, (char *)SCM_ARG2, s_divide); | |
3250 | # endif | |
3251 | # endif | |
3252 | if (SCM_REALP(y)) | |
3253 | return scm_makdbl(SCM_INUM(x)/SCM_REALPART(y), 0.0); | |
3254 | a = SCM_INUM(x); | |
3255 | complex_div: | |
3256 | r = SCM_REAL(y); i = SCM_IMAG(y); d = r*r+i*i; | |
3257 | return scm_makdbl((a*r)/d, (-a*i)/d); | |
3258 | } | |
3259 | #else | |
3260 | # ifdef SCM_BIGDIG | |
3261 | if SCM_NINUMP(x) { | |
3262 | SCM z; | |
3263 | SCM_ASSERT(SCM_NIMP(x) && SCM_BIGP(x), x, SCM_ARG1, s_divide); | |
3264 | if SCM_UNBNDP(y) goto ov; | |
3265 | if SCM_INUMP(y) { | |
3266 | z = SCM_INUM(y); | |
3267 | if (!z) goto ov; | |
3268 | if (1==z) return x; | |
3269 | if (z < 0) z = -z; | |
3270 | if (z < SCM_BIGRAD) { | |
3271 | SCM w = scm_copybig(x, SCM_BIGSIGN(x) ? (y>0) : (y<0)); | |
3272 | if (scm_divbigdig(SCM_BDIGITS(w), SCM_NUMDIGS(w), (SCM_BIGDIG)z)) goto ov; | |
3273 | return w; | |
3274 | } | |
3275 | # ifndef SCM_DIGSTOOBIG | |
3276 | z = scm_pseudolong(z); | |
3277 | z = scm_divbigbig(SCM_BDIGITS(x), SCM_NUMDIGS(x), &z, SCM_DIGSPERLONG, | |
3278 | SCM_BIGSIGN(x) ? (y>0) : (y<0), 3); | |
3279 | # else | |
3280 | { SCM_BIGDIG zdigs[SCM_DIGSPERLONG]; | |
3281 | scm_longdigs(z, zdigs); | |
3282 | z = scm_divbigbig(SCM_BDIGITS(x), SCM_NUMDIGS(x), zdigs, SCM_DIGSPERLONG, | |
3283 | SCM_BIGSIGN(x) ? (y>0) : (y<0), 3);} | |
3284 | # endif | |
3285 | } else { | |
3286 | SCM_ASRTGO(SCM_NIMP(y) && SCM_BIGP(y), bady); | |
3287 | z = scm_divbigbig(SCM_BDIGITS(x), SCM_NUMDIGS(x), SCM_BDIGITS(y), SCM_NUMDIGS(y), | |
3288 | SCM_BIGSIGN(x) ^ SCM_BIGSIGN(y), 3); | |
3289 | } | |
3290 | if (!z) goto ov; | |
3291 | return z; | |
3292 | } | |
3293 | if SCM_UNBNDP(y) { | |
3294 | if ((SCM_MAKINUM(1L)==x) || (SCM_MAKINUM(-1L)==x)) return x; | |
3295 | goto ov; | |
3296 | } | |
3297 | if SCM_NINUMP(y) { | |
3298 | # ifndef RECKLESS | |
3299 | if (!(SCM_NIMP(y) && SCM_BIGP(y))) | |
3300 | bady: scm_wta(y, (char *)SCM_ARG2, s_divide); | |
3301 | # endif | |
3302 | goto ov; | |
3303 | } | |
3304 | # else | |
3305 | SCM_ASSERT(SCM_INUMP(x), x, SCM_ARG1, s_divide); | |
3306 | if SCM_UNBNDP(y) { | |
3307 | if ((SCM_MAKINUM(1L)==x) || (SCM_MAKINUM(-1L)==x)) return x; | |
3308 | goto ov; | |
3309 | } | |
3310 | SCM_ASSERT(SCM_INUMP(y), y, SCM_ARG2, s_divide); | |
3311 | # endif | |
3312 | #endif | |
3313 | { | |
3314 | long z = SCM_INUM(y); | |
3315 | if ((0==z) || SCM_INUM(x)%z) goto ov; | |
3316 | z = SCM_INUM(x)/z; | |
3317 | if SCM_FIXABLE(z) return SCM_MAKINUM(z); | |
3318 | #ifdef SCM_BIGDIG | |
3319 | return scm_long2big(z); | |
3320 | #endif | |
3321 | #ifdef SCM_FLOATS | |
3322 | ov: return scm_makdbl(((double)SCM_INUM(x))/((double)SCM_INUM(y)), 0.0); | |
3323 | #else | |
3324 | ov: scm_wta(x, (char *)SCM_OVSCM_FLOW, s_divide); | |
3325 | return SCM_UNSPECIFIED; | |
3326 | #endif | |
3327 | } | |
3328 | } | |
3329 | ||
3330 | ||
3331 | ||
3332 | ||
3333 | #ifdef SCM_FLOATS | |
3334 | SCM_PROC1 (s_asinh, "$asinh", scm_tc7_cxr, (SCM (*)()) scm_asinh); | |
3335 | #ifdef __STDC__ | |
3336 | double | |
3337 | scm_asinh(double x) | |
3338 | #else | |
3339 | double | |
3340 | scm_asinh(x) | |
3341 | double x; | |
3342 | #endif | |
3343 | { | |
3344 | return log(x+sqrt(x*x+1)); | |
3345 | } | |
3346 | ||
3347 | ||
3348 | ||
3349 | ||
3350 | SCM_PROC1 (s_acosh, "$acosh", scm_tc7_cxr, (SCM (*)()) scm_acosh); | |
3351 | #ifdef __STDC__ | |
3352 | double | |
3353 | scm_acosh(double x) | |
3354 | #else | |
3355 | double | |
3356 | scm_acosh(x) | |
3357 | double x; | |
3358 | #endif | |
3359 | { | |
3360 | return log(x+sqrt(x*x-1)); | |
3361 | } | |
3362 | ||
3363 | ||
3364 | ||
3365 | ||
3366 | SCM_PROC1 (s_atanh, "$atanh", scm_tc7_cxr, (SCM (*)()) scm_atanh); | |
3367 | #ifdef __STDC__ | |
3368 | double | |
3369 | scm_atanh(double x) | |
3370 | #else | |
3371 | double | |
3372 | scm_atanh(x) | |
3373 | double x; | |
3374 | #endif | |
3375 | { | |
3376 | return 0.5*log((1+x)/(1-x)); | |
3377 | } | |
3378 | ||
3379 | ||
3380 | ||
3381 | ||
3382 | SCM_PROC1 (s_truncate, "truncate", scm_tc7_cxr, (SCM (*)()) scm_truncate); | |
3383 | #ifdef __STDC__ | |
3384 | double | |
3385 | scm_truncate(double x) | |
3386 | #else | |
3387 | double | |
3388 | scm_truncate(x) | |
3389 | double x; | |
3390 | #endif | |
3391 | { | |
3392 | if (x < 0.0) return -floor(-x); | |
3393 | return floor(x); | |
3394 | } | |
3395 | ||
3396 | ||
3397 | ||
3398 | SCM_PROC1 (s_round, "round", scm_tc7_cxr, (SCM (*)()) scm_round); | |
3399 | #ifdef __STDC__ | |
3400 | double | |
3401 | scm_round(double x) | |
3402 | #else | |
3403 | double | |
3404 | scm_round(x) | |
3405 | double x; | |
3406 | #endif | |
3407 | { | |
3408 | double plus_half = x + 0.5; | |
3409 | double result = floor(plus_half); | |
3410 | /* Adjust so that the scm_round is towards even. */ | |
3411 | return (plus_half == result && plus_half / 2 != floor(plus_half / 2)) | |
3412 | ? result - 1 : result; | |
3413 | } | |
3414 | ||
3415 | ||
3416 | ||
3417 | SCM_PROC1 (s_exact_to_inexact, "exact->inexact", scm_tc7_cxr, (SCM (*)()) scm_exact_to_inexact); | |
3418 | #ifdef __STDC__ | |
3419 | double | |
3420 | scm_exact_to_inexact(double z) | |
3421 | #else | |
3422 | double | |
3423 | scm_exact_to_inexact(z) | |
3424 | double z; | |
3425 | #endif | |
3426 | { | |
3427 | return z; | |
3428 | } | |
3429 | ||
3430 | ||
3431 | SCM_PROC1 (s_i_floor, "floor", scm_tc7_cxr, (SCM (*)()) floor); | |
3432 | SCM_PROC1 (s_i_ceil, "ceiling", scm_tc7_cxr, (SCM (*)()) ceil); | |
3433 | SCM_PROC1 (s_i_sqrt, "$sqrt", scm_tc7_cxr, (SCM (*)())sqrt); | |
3434 | SCM_PROC1 (s_i_abs, "$abs", scm_tc7_cxr, (SCM (*)())fabs); | |
3435 | SCM_PROC1 (s_i_exp, "$exp", scm_tc7_cxr, (SCM (*)())exp); | |
3436 | SCM_PROC1 (s_i_log, "$log", scm_tc7_cxr, (SCM (*)())log); | |
3437 | SCM_PROC1 (s_i_sin, "$sin", scm_tc7_cxr, (SCM (*)())sin); | |
3438 | SCM_PROC1 (s_i_cos, "$cos", scm_tc7_cxr, (SCM (*)())cos); | |
3439 | SCM_PROC1 (s_i_tan, "$tan", scm_tc7_cxr, (SCM (*)())tan); | |
3440 | SCM_PROC1 (s_i_asin, "$asin", scm_tc7_cxr, (SCM (*)())asin); | |
3441 | SCM_PROC1 (s_i_acos, "$acos", scm_tc7_cxr, (SCM (*)())acos); | |
3442 | SCM_PROC1 (s_i_atan, "$atan", scm_tc7_cxr, (SCM (*)())atan); | |
3443 | SCM_PROC1 (s_i_sinh, "$sinh", scm_tc7_cxr, (SCM (*)())sinh); | |
3444 | SCM_PROC1 (s_i_cosh, "$cosh", scm_tc7_cxr, (SCM (*)())cosh); | |
3445 | SCM_PROC1 (s_i_tanh, "$tanh", scm_tc7_cxr, (SCM (*)())tanh); | |
3446 | ||
3447 | struct dpair {double x, y;}; | |
3448 | ||
3449 | void scm_two_doubles(z1, z2, sstring, xy) | |
3450 | SCM z1, z2; | |
3451 | char *sstring; | |
3452 | struct dpair *xy; | |
3453 | { | |
3454 | if SCM_INUMP(z1) xy->x = SCM_INUM(z1); | |
3455 | else { | |
3456 | # ifdef SCM_BIGDIG | |
3457 | SCM_ASRTGO(SCM_NIMP(z1), badz1); | |
3458 | if SCM_BIGP(z1) xy->x = scm_big2dbl(z1); | |
3459 | else { | |
3460 | # ifndef RECKLESS | |
3461 | if (!(SCM_REALP(z1))) | |
3462 | badz1: scm_wta(z1, (char *)SCM_ARG1, sstring); | |
3463 | # endif | |
3464 | xy->x = SCM_REALPART(z1);} | |
3465 | # else | |
3466 | {SCM_ASSERT(SCM_NIMP(z1) && SCM_REALP(z1), z1, SCM_ARG1, sstring); | |
3467 | xy->x = SCM_REALPART(z1);} | |
3468 | # endif | |
3469 | } | |
3470 | if SCM_INUMP(z2) xy->y = SCM_INUM(z2); | |
3471 | else { | |
3472 | # ifdef SCM_BIGDIG | |
3473 | SCM_ASRTGO(SCM_NIMP(z2), badz2); | |
3474 | if SCM_BIGP(z2) xy->y = scm_big2dbl(z2); | |
3475 | else { | |
3476 | # ifndef RECKLESS | |
3477 | if (!(SCM_REALP(z2))) | |
3478 | badz2: scm_wta(z2, (char *)SCM_ARG2, sstring); | |
3479 | # endif | |
3480 | xy->y = SCM_REALPART(z2);} | |
3481 | # else | |
3482 | {SCM_ASSERT(SCM_NIMP(z2) && SCM_REALP(z2), z2, SCM_ARG2, sstring); | |
3483 | xy->y = SCM_REALPART(z2);} | |
3484 | # endif | |
3485 | } | |
3486 | } | |
3487 | ||
3488 | ||
3489 | ||
3490 | ||
02b754d3 | 3491 | SCM_PROC(s_sys_expt, "$expt", 2, 0, 0, scm_sys_expt); |
0f2d19dd JB |
3492 | #ifdef __STDC__ |
3493 | SCM | |
3494 | scm_sys_expt(SCM z1, SCM z2) | |
3495 | #else | |
3496 | SCM | |
3497 | scm_sys_expt(z1, z2) | |
3498 | SCM z1; | |
3499 | SCM z2; | |
3500 | #endif | |
3501 | { | |
3502 | struct dpair xy; | |
3503 | scm_two_doubles(z1, z2, s_sys_expt, &xy); | |
3504 | return scm_makdbl(pow(xy.x, xy.y), 0.0); | |
3505 | } | |
3506 | ||
3507 | ||
3508 | ||
02b754d3 | 3509 | SCM_PROC(s_sys_atan2, "$atan2", 2, 0, 0, scm_sys_atan2); |
0f2d19dd JB |
3510 | #ifdef __STDC__ |
3511 | SCM | |
3512 | scm_sys_atan2(SCM z1, SCM z2) | |
3513 | #else | |
3514 | SCM | |
3515 | scm_sys_atan2(z1, z2) | |
3516 | SCM z1; | |
3517 | SCM z2; | |
3518 | #endif | |
3519 | { | |
3520 | struct dpair xy; | |
3521 | scm_two_doubles(z1, z2, s_sys_atan2, &xy); | |
3522 | return scm_makdbl(atan2(xy.x, xy.y), 0.0); | |
3523 | } | |
3524 | ||
3525 | ||
3526 | ||
3527 | SCM_PROC(s_make_rectangular, "make-rectangular", 2, 0, 0, scm_make_rectangular); | |
3528 | #ifdef __STDC__ | |
3529 | SCM | |
3530 | scm_make_rectangular(SCM z1, SCM z2) | |
3531 | #else | |
3532 | SCM | |
3533 | scm_make_rectangular(z1, z2) | |
3534 | SCM z1; | |
3535 | SCM z2; | |
3536 | #endif | |
3537 | { | |
3538 | struct dpair xy; | |
3539 | scm_two_doubles(z1, z2, s_make_rectangular, &xy); | |
3540 | return scm_makdbl(xy.x, xy.y); | |
3541 | } | |
3542 | ||
3543 | ||
3544 | ||
3545 | SCM_PROC(s_make_polar, "make-polar", 2, 0, 0, scm_make_polar); | |
3546 | #ifdef __STDC__ | |
3547 | SCM | |
3548 | scm_make_polar(SCM z1, SCM z2) | |
3549 | #else | |
3550 | SCM | |
3551 | scm_make_polar(z1, z2) | |
3552 | SCM z1; | |
3553 | SCM z2; | |
3554 | #endif | |
3555 | { | |
3556 | struct dpair xy; | |
3557 | scm_two_doubles(z1, z2, s_make_polar, &xy); | |
3558 | return scm_makdbl(xy.x*cos(xy.y), xy.x*sin(xy.y)); | |
3559 | } | |
3560 | ||
3561 | ||
3562 | ||
3563 | ||
3564 | SCM_PROC(s_real_part, "real-part", 1, 0, 0, scm_real_part); | |
3565 | #ifdef __STDC__ | |
3566 | SCM | |
3567 | scm_real_part(SCM z) | |
3568 | #else | |
3569 | SCM | |
3570 | scm_real_part(z) | |
3571 | SCM z; | |
3572 | #endif | |
3573 | { | |
3574 | if SCM_NINUMP(z) { | |
3575 | # ifdef SCM_BIGDIG | |
3576 | SCM_ASRTGO(SCM_NIMP(z), badz); | |
3577 | if SCM_BIGP(z) return z; | |
3578 | # ifndef RECKLESS | |
3579 | if (!(SCM_INEXP(z))) | |
3580 | badz: scm_wta(z, (char *)SCM_ARG1, s_real_part); | |
3581 | # endif | |
3582 | # else | |
3583 | SCM_ASSERT(SCM_NIMP(z) && SCM_INEXP(z), z, SCM_ARG1, s_real_part); | |
3584 | # endif | |
3585 | if SCM_CPLXP(z) return scm_makdbl(SCM_REAL(z), 0.0); | |
3586 | } | |
3587 | return z; | |
3588 | } | |
3589 | ||
3590 | ||
3591 | ||
3592 | SCM_PROC(s_imag_part, "imag-part", 1, 0, 0, scm_imag_part); | |
3593 | #ifdef __STDC__ | |
3594 | SCM | |
3595 | scm_imag_part(SCM z) | |
3596 | #else | |
3597 | SCM | |
3598 | scm_imag_part(z) | |
3599 | SCM z; | |
3600 | #endif | |
3601 | { | |
3602 | if SCM_INUMP(z) return SCM_INUM0; | |
3603 | # ifdef SCM_BIGDIG | |
3604 | SCM_ASRTGO(SCM_NIMP(z), badz); | |
3605 | if SCM_BIGP(z) return SCM_INUM0; | |
3606 | # ifndef RECKLESS | |
3607 | if (!(SCM_INEXP(z))) | |
3608 | badz: scm_wta(z, (char *)SCM_ARG1, s_imag_part); | |
3609 | # endif | |
3610 | # else | |
3611 | SCM_ASSERT(SCM_NIMP(z) && SCM_INEXP(z), z, SCM_ARG1, s_imag_part); | |
3612 | # endif | |
3613 | if SCM_CPLXP(z) return scm_makdbl(SCM_IMAG(z), 0.0); | |
3614 | return scm_flo0; | |
3615 | } | |
3616 | ||
3617 | ||
3618 | ||
3619 | SCM_PROC(s_magnitude, "magnitude", 1, 0, 0, scm_magnitude); | |
3620 | #ifdef __STDC__ | |
3621 | SCM | |
3622 | scm_magnitude(SCM z) | |
3623 | #else | |
3624 | SCM | |
3625 | scm_magnitude(z) | |
3626 | SCM z; | |
3627 | #endif | |
3628 | { | |
3629 | if SCM_INUMP(z) return scm_abs(z); | |
3630 | # ifdef SCM_BIGDIG | |
3631 | SCM_ASRTGO(SCM_NIMP(z), badz); | |
3632 | if SCM_BIGP(z) return scm_abs(z); | |
3633 | # ifndef RECKLESS | |
3634 | if (!(SCM_INEXP(z))) | |
3635 | badz: scm_wta(z, (char *)SCM_ARG1, s_magnitude); | |
3636 | # endif | |
3637 | # else | |
3638 | SCM_ASSERT(SCM_NIMP(z) && SCM_INEXP(z), z, SCM_ARG1, s_magnitude); | |
3639 | # endif | |
3640 | if SCM_CPLXP(z) | |
3641 | { | |
3642 | double i = SCM_IMAG(z), r = SCM_REAL(z); | |
3643 | return scm_makdbl(sqrt(i*i+r*r), 0.0); | |
3644 | } | |
3645 | return scm_makdbl(fabs(SCM_REALPART(z)), 0.0); | |
3646 | } | |
3647 | ||
3648 | ||
3649 | ||
3650 | ||
3651 | SCM_PROC(s_angle, "angle", 1, 0, 0, scm_angle); | |
3652 | #ifdef __STDC__ | |
3653 | SCM | |
3654 | scm_angle(SCM z) | |
3655 | #else | |
3656 | SCM | |
3657 | scm_angle(z) | |
3658 | SCM z; | |
3659 | #endif | |
3660 | { | |
3661 | double x, y = 0.0; | |
3662 | if SCM_INUMP(z) {x = (z>=SCM_INUM0) ? 1.0 : -1.0; goto do_angle;} | |
3663 | # ifdef SCM_BIGDIG | |
3664 | SCM_ASRTGO(SCM_NIMP(z), badz); | |
3665 | if SCM_BIGP(z) {x = (SCM_TYP16(z)==scm_tc16_bigpos) ? 1.0 : -1.0; goto do_angle;} | |
3666 | # ifndef RECKLESS | |
3667 | if (!(SCM_INEXP(z))) { | |
3668 | badz: scm_wta(z, (char *)SCM_ARG1, s_angle);} | |
3669 | # endif | |
3670 | # else | |
3671 | SCM_ASSERT(SCM_NIMP(z) && SCM_INEXP(z), z, SCM_ARG1, s_angle); | |
3672 | # endif | |
3673 | if (SCM_REALP(z)) | |
3674 | { | |
3675 | x = SCM_REALPART(z); | |
3676 | goto do_angle; | |
3677 | } | |
3678 | x = SCM_REAL(z); y = SCM_IMAG(z); | |
3679 | do_angle: | |
3680 | return scm_makdbl(atan2(y, x), 0.0); | |
3681 | } | |
3682 | ||
3683 | ||
3684 | SCM_PROC(s_inexact_to_exact, "inexact->exact", 1, 0, 0, scm_inexact_to_exact); | |
3685 | #ifdef __STDC__ | |
3686 | SCM | |
3687 | scm_inexact_to_exact(SCM z) | |
3688 | #else | |
3689 | SCM | |
3690 | scm_inexact_to_exact(z) | |
3691 | SCM z; | |
3692 | #endif | |
3693 | { | |
3694 | if SCM_INUMP(z) return z; | |
3695 | # ifdef SCM_BIGDIG | |
3696 | SCM_ASRTGO(SCM_NIMP(z), badz); | |
3697 | if SCM_BIGP(z) return z; | |
3698 | # ifndef RECKLESS | |
3699 | if (!(SCM_REALP(z))) | |
3700 | badz: scm_wta(z, (char *)SCM_ARG1, s_inexact_to_exact); | |
3701 | # endif | |
3702 | # else | |
3703 | SCM_ASSERT(SCM_NIMP(z) && SCM_REALP(z), z, SCM_ARG1, s_inexact_to_exact); | |
3704 | # endif | |
3705 | # ifdef SCM_BIGDIG | |
3706 | { | |
3707 | double u = floor(SCM_REALPART(z)+0.5); | |
3708 | if ((u <= SCM_MOST_POSITIVE_FIXNUM) && (-u <= -SCM_MOST_NEGATIVE_FIXNUM)) { | |
3709 | /* Negation is a workaround for HP700 cc bug */ | |
3710 | SCM ans = SCM_MAKINUM((long)u); | |
3711 | if (SCM_INUM(ans)==(long)u) return ans; | |
3712 | } | |
3713 | SCM_ASRTGO(!IS_INF(u), badz); /* problem? */ | |
3714 | return scm_dbl2big(u); | |
3715 | } | |
3716 | # else | |
3717 | return SCM_MAKINUM((long)floor(SCM_REALPART(z)+0.5)); | |
3718 | # endif | |
3719 | } | |
3720 | ||
3721 | ||
3722 | ||
3723 | #else /* ~SCM_FLOATS */ | |
3724 | SCM_PROC(s_trunc, "truncate", 1, 0, 0, scm_trunc); | |
3725 | #ifdef __STDC__ | |
3726 | SCM | |
3727 | scm_trunc(SCM x) | |
3728 | #else | |
3729 | SCM | |
3730 | scm_trunc(x) | |
3731 | SCM x; | |
3732 | #endif | |
3733 | { | |
3734 | SCM_ASSERT(SCM_INUMP(x), x, SCM_ARG1, s_truncate); | |
3735 | return x; | |
3736 | } | |
3737 | ||
3738 | ||
3739 | ||
3740 | #endif /* SCM_FLOATS */ | |
3741 | ||
3742 | #ifdef SCM_BIGDIG | |
3743 | # ifdef SCM_FLOATS | |
3744 | /* d must be integer */ | |
3745 | #ifdef __STDC__ | |
3746 | SCM | |
3747 | scm_dbl2big(double d) | |
3748 | #else | |
3749 | SCM | |
3750 | scm_dbl2big(d) | |
3751 | double d; | |
3752 | #endif | |
3753 | { | |
3754 | scm_sizet i = 0; | |
3755 | long c; | |
3756 | SCM_BIGDIG *digits; | |
3757 | SCM ans; | |
3758 | double u = (d < 0)?-d:d; | |
3759 | while (0 != floor(u)) {u /= SCM_BIGRAD;i++;} | |
3760 | ans = scm_mkbig(i, d < 0); | |
3761 | digits = SCM_BDIGITS(ans); | |
3762 | while (i--) { | |
3763 | u *= SCM_BIGRAD; | |
3764 | c = floor(u); | |
3765 | u -= c; | |
3766 | digits[i] = c; | |
3767 | } | |
3768 | SCM_ASSERT(0==u, SCM_INUM0, SCM_OVSCM_FLOW, "dbl2big"); | |
3769 | return ans; | |
3770 | } | |
3771 | ||
3772 | ||
3773 | ||
3774 | #ifdef __STDC__ | |
3775 | double | |
3776 | scm_big2dbl(SCM b) | |
3777 | #else | |
3778 | double | |
3779 | scm_big2dbl(b) | |
3780 | SCM b; | |
3781 | #endif | |
3782 | { | |
3783 | double ans = 0.0; | |
3784 | scm_sizet i = SCM_NUMDIGS(b); | |
3785 | SCM_BIGDIG *digits = SCM_BDIGITS(b); | |
3786 | while (i--) ans = digits[i] + SCM_BIGRAD*ans; | |
3787 | if (scm_tc16_bigneg==SCM_TYP16(b)) return -ans; | |
3788 | return ans; | |
3789 | } | |
3790 | # endif | |
3791 | #endif | |
3792 | ||
3793 | #ifdef __STDC__ | |
3794 | SCM | |
3795 | scm_long2num(long sl) | |
3796 | #else | |
3797 | SCM | |
3798 | scm_long2num(sl) | |
3799 | long sl; | |
3800 | #endif | |
3801 | { | |
3802 | if (!SCM_FIXABLE(sl)) { | |
3803 | #ifdef SCM_BIGDIG | |
3804 | return scm_long2big(sl); | |
3805 | #else | |
3806 | # ifdef SCM_FLOATS | |
3807 | return scm_makdbl((double) sl, 0.0); | |
3808 | # else | |
3809 | return SCM_BOOL_F; | |
3810 | # endif | |
3811 | #endif | |
3812 | } | |
3813 | return SCM_MAKINUM(sl); | |
3814 | } | |
3815 | ||
3816 | ||
3817 | #ifdef LONGLONGS | |
3818 | #ifdef __STDC__ | |
3819 | SCM | |
3820 | scm_long_long2num(long_long sl) | |
3821 | #else | |
3822 | SCM | |
3823 | scm_long_long2num(sl) | |
3824 | long_long sl; | |
3825 | #endif | |
3826 | { | |
3827 | if (!SCM_FIXABLE(sl)) { | |
3828 | #ifdef SCM_BIGDIG | |
3829 | return scm_long_long2big(sl); | |
3830 | #else | |
3831 | # ifdef SCM_FLOATS | |
3832 | return scm_makdbl((double) sl, 0.0); | |
3833 | # else | |
3834 | return SCM_BOOL_F; | |
3835 | # endif | |
3836 | #endif | |
3837 | } | |
3838 | return SCM_MAKINUM(sl); | |
3839 | } | |
3840 | #endif | |
3841 | ||
3842 | ||
3843 | #ifdef __STDC__ | |
3844 | SCM | |
3845 | scm_ulong2num(unsigned long sl) | |
3846 | #else | |
3847 | SCM | |
3848 | scm_ulong2num(sl) | |
3849 | unsigned long sl; | |
3850 | #endif | |
3851 | { | |
3852 | if (!SCM_POSSCM_FIXABLE(sl)) { | |
3853 | #ifdef SCM_BIGDIG | |
3854 | return scm_ulong2big(sl); | |
3855 | #else | |
3856 | # ifdef SCM_FLOATS | |
3857 | return scm_makdbl((double) sl, 0.0); | |
3858 | # else | |
3859 | return SCM_BOOL_F; | |
3860 | # endif | |
3861 | #endif | |
3862 | } | |
3863 | return SCM_MAKINUM(sl); | |
3864 | } | |
3865 | ||
3866 | #ifdef __STDC__ | |
3867 | long | |
3868 | scm_num2long(SCM num, char *pos, char *s_caller) | |
3869 | #else | |
3870 | long | |
3871 | scm_num2long(num, pos, s_caller) | |
3872 | SCM num; | |
3873 | char *pos; | |
3874 | char *s_caller; | |
3875 | #endif | |
3876 | { | |
3877 | long res; | |
3878 | if (SCM_INUMP(num)) | |
3879 | { | |
3880 | res = SCM_INUM(num); | |
3881 | return res; | |
3882 | } | |
3883 | SCM_ASRTGO(SCM_NIMP(num), errout); | |
3884 | #ifdef SCM_FLOATS | |
3885 | if (SCM_REALP(num)) | |
3886 | { | |
3887 | double u = SCM_REALPART(num); | |
3888 | res = u; | |
3889 | if ((double)res == u) | |
3890 | { | |
3891 | return res; | |
3892 | } | |
3893 | } | |
3894 | #endif | |
3895 | #ifdef SCM_BIGDIG | |
3896 | if (SCM_BIGP(num)) { | |
3897 | long oldres; | |
3898 | scm_sizet l; | |
3899 | res = 0; | |
3900 | oldres = 0; | |
3901 | for(l = SCM_NUMDIGS(num);l--;) | |
3902 | { | |
3903 | res = SCM_BIGUP(res) + SCM_BDIGITS(num)[l]; | |
3904 | if (res < oldres) | |
3905 | goto errout; | |
3906 | oldres = res; | |
3907 | } | |
3908 | if (SCM_TYP16 (num) == scm_tc16_bigpos) | |
3909 | return res; | |
3910 | else | |
3911 | return -res; | |
3912 | } | |
3913 | #endif | |
3914 | errout: scm_wta(num, pos, s_caller); | |
3915 | return SCM_UNSPECIFIED; | |
3916 | } | |
3917 | ||
3918 | ||
3919 | ||
3920 | ||
3921 | #ifdef __STDC__ | |
3922 | long | |
3923 | num2long(SCM num, char *pos, char *s_caller) | |
3924 | #else | |
3925 | long | |
3926 | num2long(num, pos, s_caller) | |
3927 | SCM num; | |
3928 | char *pos; | |
3929 | char *s_caller; | |
3930 | #endif | |
3931 | { | |
3932 | long res; | |
3933 | if SCM_INUMP(num) { | |
3934 | res = SCM_INUM((long)num); | |
3935 | return res; | |
3936 | } | |
3937 | SCM_ASRTGO(SCM_NIMP(num), errout); | |
3938 | #ifdef SCM_FLOATS | |
3939 | if SCM_REALP(num) { | |
3940 | double u = SCM_REALPART(num); | |
3941 | if (((SCM_MOST_NEGATIVE_FIXNUM * 4) <= u) | |
3942 | && (u <= (SCM_MOST_POSITIVE_FIXNUM * 4 + 3))) { | |
3943 | res = u; | |
3944 | return res; | |
3945 | } | |
3946 | } | |
3947 | #endif | |
3948 | #ifdef SCM_BIGDIG | |
3949 | if SCM_BIGP(num) { | |
3950 | scm_sizet l = SCM_NUMDIGS(num); | |
3951 | SCM_ASRTGO(SCM_DIGSPERLONG >= l, errout); | |
3952 | res = 0; | |
3953 | for(;l--;) res = SCM_BIGUP(res) + SCM_BDIGITS(num)[l]; | |
3954 | return res; | |
3955 | } | |
3956 | #endif | |
3957 | errout: scm_wta(num, pos, s_caller); | |
3958 | return SCM_UNSPECIFIED; | |
3959 | } | |
3960 | ||
3961 | ||
3962 | #ifdef LONGLONGS | |
3963 | #ifdef __STDC__ | |
3964 | long_long | |
3965 | scm_num2long_long(SCM num, char *pos, char *s_caller) | |
3966 | #else | |
3967 | long_long | |
3968 | scm_num2long_long(num, pos, s_caller) | |
3969 | SCM num; | |
3970 | char *pos; | |
3971 | char *s_caller; | |
3972 | #endif | |
3973 | { | |
3974 | long_long res; | |
3975 | if SCM_INUMP(num) { | |
3976 | res = SCM_INUM((long_long)num); | |
3977 | return res; | |
3978 | } | |
3979 | SCM_ASRTGO(SCM_NIMP(num), errout); | |
3980 | #ifdef SCM_FLOATS | |
3981 | if SCM_REALP(num) { | |
3982 | double u = SCM_REALPART(num); | |
3983 | if (((SCM_MOST_NEGATIVE_FIXNUM * 4) <= u) | |
3984 | && (u <= (SCM_MOST_POSITIVE_FIXNUM * 4 + 3))) { | |
3985 | res = u; | |
3986 | return res; | |
3987 | } | |
3988 | } | |
3989 | #endif | |
3990 | #ifdef SCM_BIGDIG | |
3991 | if SCM_BIGP(num) { | |
3992 | scm_sizet l = SCM_NUMDIGS(num); | |
3993 | SCM_ASRTGO(SCM_DIGSPERLONGLONG >= l, errout); | |
3994 | res = 0; | |
3995 | for(;l--;) res = SCM_LONGLONGSCM_BIGUP(res) + SCM_BDIGITS(num)[l]; | |
3996 | return res; | |
3997 | } | |
3998 | #endif | |
3999 | errout: scm_wta(num, pos, s_caller); | |
4000 | return SCM_UNSPECIFIED; | |
4001 | } | |
4002 | #endif | |
4003 | ||
4004 | ||
4005 | #ifdef __STDC__ | |
4006 | unsigned long | |
4007 | scm_num2ulong(SCM num, char *pos, char *s_caller) | |
4008 | #else | |
4009 | unsigned long | |
4010 | scm_num2ulong(num, pos, s_caller) | |
4011 | SCM num; | |
4012 | char *pos; | |
4013 | char *s_caller; | |
4014 | #endif | |
4015 | { | |
4016 | unsigned long res; | |
4017 | if (SCM_INUMP(num)) | |
4018 | { | |
4019 | res = SCM_INUM((unsigned long)num); | |
4020 | return res; | |
4021 | } | |
4022 | SCM_ASRTGO(SCM_NIMP(num), errout); | |
4023 | #ifdef SCM_FLOATS | |
4024 | if (SCM_REALP(num)) | |
4025 | { | |
4026 | double u = SCM_REALPART(num); | |
4027 | if ((0 <= u) && (u <= (unsigned long)~0L)) | |
4028 | { | |
4029 | res = u; | |
4030 | return res; | |
4031 | } | |
4032 | } | |
4033 | #endif | |
4034 | #ifdef SCM_BIGDIG | |
4035 | if (SCM_BIGP(num)) { | |
4036 | unsigned long oldres; | |
4037 | scm_sizet l; | |
4038 | res = 0; | |
4039 | oldres = 0; | |
4040 | for(l = SCM_NUMDIGS(num);l--;) | |
4041 | { | |
4042 | res = SCM_BIGUP(res) + SCM_BDIGITS(num)[l]; | |
4043 | if (res < oldres) | |
4044 | goto errout; | |
4045 | oldres = res; | |
4046 | } | |
4047 | return res; | |
4048 | } | |
4049 | #endif | |
4050 | errout: scm_wta(num, pos, s_caller); | |
4051 | return SCM_UNSPECIFIED; | |
4052 | } | |
4053 | ||
4054 | ||
4055 | #ifdef SCM_FLOATS | |
4056 | # ifndef DBL_DIG | |
4057 | static void add1(f, fsum) | |
4058 | double f, *fsum; | |
4059 | { | |
4060 | *fsum = f + 1.0; | |
4061 | } | |
4062 | # endif | |
4063 | #endif | |
4064 | ||
4065 | ||
4066 | #ifdef __STDC__ | |
4067 | void | |
4068 | scm_init_numbers (void) | |
4069 | #else | |
4070 | void | |
4071 | scm_init_numbers () | |
4072 | #endif | |
4073 | { | |
4074 | #ifdef SCM_FLOATS | |
4075 | SCM_NEWCELL(scm_flo0); | |
4076 | # ifdef SCM_SINGLES | |
4077 | SCM_CAR(scm_flo0) = scm_tc_flo; | |
4078 | SCM_FLO(scm_flo0) = 0.0; | |
4079 | # else | |
4080 | SCM_CDR(scm_flo0) = (SCM)scm_must_malloc(1L*sizeof(double), "real"); | |
4081 | SCM_REAL(scm_flo0) = 0.0; | |
4082 | SCM_CAR(scm_flo0) = scm_tc_dblr; | |
4083 | # endif | |
4084 | # ifdef DBL_DIG | |
4085 | scm_dblprec = (DBL_DIG > 20) ? 20 : DBL_DIG; | |
4086 | # else | |
4087 | { /* determine floating point precision */ | |
4088 | double f = 0.1; | |
4089 | double fsum = 1.0+f; | |
4090 | while (fsum != 1.0) { | |
4091 | f /= 10.0; | |
4092 | if (++scm_dblprec > 20) break; | |
4093 | add1(f, &fsum); | |
4094 | } | |
4095 | scm_dblprec = scm_dblprec-1; | |
4096 | } | |
4097 | # endif /* DBL_DIG */ | |
4098 | #endif | |
4099 | #include "numbers.x" | |
4100 | } | |
4101 |