Commit | Line | Data |
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b70021f4 | 1 | /* Primitive operations on floating point for GNU Emacs Lisp interpreter. |
3a22ee35 | 2 | Copyright (C) 1988, 1993, 1994 Free Software Foundation, Inc. |
b70021f4 MR |
3 | |
4 | This file is part of GNU Emacs. | |
5 | ||
6 | GNU Emacs is free software; you can redistribute it and/or modify | |
7 | it under the terms of the GNU General Public License as published by | |
4746118a | 8 | the Free Software Foundation; either version 2, or (at your option) |
b70021f4 MR |
9 | any later version. |
10 | ||
11 | GNU Emacs is distributed in the hope that it will be useful, | |
12 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | GNU General Public License for more details. | |
15 | ||
16 | You should have received a copy of the GNU General Public License | |
17 | along with GNU Emacs; see the file COPYING. If not, write to | |
18 | the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */ | |
19 | ||
20 | ||
4b6baf5f RS |
21 | /* ANSI C requires only these float functions: |
22 | acos, asin, atan, atan2, ceil, cos, cosh, exp, fabs, floor, fmod, | |
23 | frexp, ldexp, log, log10, modf, pow, sin, sinh, sqrt, tan, tanh. | |
24 | ||
25 | Define HAVE_INVERSE_HYPERBOLIC if you have acosh, asinh, and atanh. | |
26 | Define HAVE_CBRT if you have cbrt. | |
27 | Define HAVE_RINT if you have rint. | |
28 | If you don't define these, then the appropriate routines will be simulated. | |
29 | ||
30 | Define HAVE_MATHERR if on a system supporting the SysV matherr callback. | |
31 | (This should happen automatically.) | |
32 | ||
33 | Define FLOAT_CHECK_ERRNO if the float library routines set errno. | |
34 | This has no effect if HAVE_MATHERR is defined. | |
35 | ||
36 | Define FLOAT_CATCH_SIGILL if the float library routines signal SIGILL. | |
37 | (What systems actually do this? Please let us know.) | |
38 | ||
39 | Define FLOAT_CHECK_DOMAIN if the float library doesn't handle errors by | |
8e6208c5 | 40 | either setting errno, or signaling SIGFPE/SIGILL. Otherwise, domain and |
4b6baf5f RS |
41 | range checking will happen before calling the float routines. This has |
42 | no effect if HAVE_MATHERR is defined (since matherr will be called when | |
43 | a domain error occurs.) | |
44 | */ | |
45 | ||
b70021f4 MR |
46 | #include <signal.h> |
47 | ||
18160b98 | 48 | #include <config.h> |
b70021f4 | 49 | #include "lisp.h" |
e065a56e | 50 | #include "syssignal.h" |
b70021f4 MR |
51 | |
52 | Lisp_Object Qarith_error; | |
53 | ||
54 | #ifdef LISP_FLOAT_TYPE | |
265a9e55 | 55 | |
4cd7a373 RS |
56 | /* Work around a problem that happens because math.h on hpux 7 |
57 | defines two static variables--which, in Emacs, are not really static, | |
58 | because `static' is defined as nothing. The problem is that they are | |
59 | defined both here and in lread.c. | |
60 | These macros prevent the name conflict. */ | |
61 | #if defined (HPUX) && !defined (HPUX8) | |
62 | #define _MAXLDBL floatfns_maxldbl | |
63 | #define _NMAXLDBL floatfns_nmaxldbl | |
64 | #endif | |
65 | ||
b70021f4 | 66 | #include <math.h> |
4b6baf5f | 67 | |
32085e8e | 68 | /* This declaration is omitted on some systems, like Ultrix. */ |
7a4720e2 | 69 | #if !defined (HPUX) && defined (HAVE_LOGB) && !defined (logb) |
c26406fe | 70 | extern double logb (); |
7a4720e2 | 71 | #endif /* not HPUX and HAVE_LOGB and no logb macro */ |
c26406fe | 72 | |
4b6baf5f RS |
73 | #if defined(DOMAIN) && defined(SING) && defined(OVERFLOW) |
74 | /* If those are defined, then this is probably a `matherr' machine. */ | |
75 | # ifndef HAVE_MATHERR | |
76 | # define HAVE_MATHERR | |
77 | # endif | |
78 | #endif | |
79 | ||
c0f0a4a2 | 80 | #ifdef NO_MATHERR |
f89182a2 RS |
81 | #undef HAVE_MATHERR |
82 | #endif | |
83 | ||
4b6baf5f RS |
84 | #ifdef HAVE_MATHERR |
85 | # ifdef FLOAT_CHECK_ERRNO | |
86 | # undef FLOAT_CHECK_ERRNO | |
87 | # endif | |
88 | # ifdef FLOAT_CHECK_DOMAIN | |
89 | # undef FLOAT_CHECK_DOMAIN | |
90 | # endif | |
91 | #endif | |
92 | ||
93 | #ifndef NO_FLOAT_CHECK_ERRNO | |
94 | #define FLOAT_CHECK_ERRNO | |
95 | #endif | |
96 | ||
97 | #ifdef FLOAT_CHECK_ERRNO | |
98 | # include <errno.h> | |
265a9e55 JB |
99 | |
100 | extern int errno; | |
4b6baf5f | 101 | #endif |
265a9e55 JB |
102 | |
103 | /* Avoid traps on VMS from sinh and cosh. | |
104 | All the other functions set errno instead. */ | |
105 | ||
106 | #ifdef VMS | |
107 | #undef cosh | |
108 | #undef sinh | |
109 | #define cosh(x) ((exp(x)+exp(-x))*0.5) | |
110 | #define sinh(x) ((exp(x)-exp(-x))*0.5) | |
111 | #endif /* VMS */ | |
112 | ||
4b6baf5f RS |
113 | #ifndef HAVE_RINT |
114 | #define rint(x) (floor((x)+0.5)) | |
115 | #endif | |
116 | ||
4746118a | 117 | static SIGTYPE float_error (); |
b70021f4 MR |
118 | |
119 | /* Nonzero while executing in floating point. | |
120 | This tells float_error what to do. */ | |
121 | ||
122 | static int in_float; | |
123 | ||
124 | /* If an argument is out of range for a mathematical function, | |
265a9e55 | 125 | here is the actual argument value to use in the error message. */ |
b70021f4 | 126 | |
4b6baf5f RS |
127 | static Lisp_Object float_error_arg, float_error_arg2; |
128 | ||
129 | static char *float_error_fn_name; | |
b70021f4 | 130 | |
265a9e55 JB |
131 | /* Evaluate the floating point expression D, recording NUM |
132 | as the original argument for error messages. | |
133 | D is normally an assignment expression. | |
f8d83099 JB |
134 | Handle errors which may result in signals or may set errno. |
135 | ||
136 | Note that float_error may be declared to return void, so you can't | |
137 | just cast the zero after the colon to (SIGTYPE) to make the types | |
138 | check properly. */ | |
265a9e55 | 139 | |
4b6baf5f RS |
140 | #ifdef FLOAT_CHECK_ERRNO |
141 | #define IN_FLOAT(d, name, num) \ | |
142 | do { \ | |
143 | float_error_arg = num; \ | |
144 | float_error_fn_name = name; \ | |
145 | in_float = 1; errno = 0; (d); in_float = 0; \ | |
146 | switch (errno) { \ | |
147 | case 0: break; \ | |
148 | case EDOM: domain_error (float_error_fn_name, float_error_arg); \ | |
149 | case ERANGE: range_error (float_error_fn_name, float_error_arg); \ | |
150 | default: arith_error (float_error_fn_name, float_error_arg); \ | |
151 | } \ | |
152 | } while (0) | |
153 | #define IN_FLOAT2(d, name, num, num2) \ | |
154 | do { \ | |
155 | float_error_arg = num; \ | |
156 | float_error_arg2 = num2; \ | |
157 | float_error_fn_name = name; \ | |
158 | in_float = 1; errno = 0; (d); in_float = 0; \ | |
159 | switch (errno) { \ | |
160 | case 0: break; \ | |
161 | case EDOM: domain_error (float_error_fn_name, float_error_arg); \ | |
162 | case ERANGE: range_error (float_error_fn_name, float_error_arg); \ | |
163 | default: arith_error (float_error_fn_name, float_error_arg); \ | |
164 | } \ | |
165 | } while (0) | |
166 | #else | |
f8131ed2 | 167 | #define IN_FLOAT(d, name, num) (in_float = 1, (d), in_float = 0) |
4b6baf5f RS |
168 | #define IN_FLOAT2(d, name, num, num2) (in_float = 1, (d), in_float = 0) |
169 | #endif | |
170 | ||
81a63ccc KH |
171 | /* Convert float to Lisp_Int if it fits, else signal a range error |
172 | using the given arguments. */ | |
173 | #define FLOAT_TO_INT(x, i, name, num) \ | |
174 | do \ | |
175 | { \ | |
7936dcdb RS |
176 | if ((x) >= (((EMACS_INT) 1) << (VALBITS-1)) || \ |
177 | (x) <= - (((EMACS_INT) 1) << (VALBITS-1)) - 1) \ | |
81a63ccc | 178 | range_error (name, num); \ |
e0cb2a68 | 179 | XSETINT (i, (EMACS_INT)(x)); \ |
81a63ccc KH |
180 | } \ |
181 | while (0) | |
182 | #define FLOAT_TO_INT2(x, i, name, num1, num2) \ | |
183 | do \ | |
184 | { \ | |
7936dcdb RS |
185 | if ((x) >= (((EMACS_INT) 1) << (VALBITS-1)) || \ |
186 | (x) <= - (((EMACS_INT) 1) << (VALBITS-1)) - 1) \ | |
81a63ccc | 187 | range_error2 (name, num1, num2); \ |
e0cb2a68 | 188 | XSETINT (i, (EMACS_INT)(x)); \ |
81a63ccc KH |
189 | } \ |
190 | while (0) | |
191 | ||
4b6baf5f RS |
192 | #define arith_error(op,arg) \ |
193 | Fsignal (Qarith_error, Fcons (build_string ((op)), Fcons ((arg), Qnil))) | |
194 | #define range_error(op,arg) \ | |
195 | Fsignal (Qrange_error, Fcons (build_string ((op)), Fcons ((arg), Qnil))) | |
81a63ccc KH |
196 | #define range_error2(op,a1,a2) \ |
197 | Fsignal (Qrange_error, Fcons (build_string ((op)), \ | |
198 | Fcons ((a1), Fcons ((a2), Qnil)))) | |
4b6baf5f RS |
199 | #define domain_error(op,arg) \ |
200 | Fsignal (Qdomain_error, Fcons (build_string ((op)), Fcons ((arg), Qnil))) | |
201 | #define domain_error2(op,a1,a2) \ | |
81a63ccc KH |
202 | Fsignal (Qdomain_error, Fcons (build_string ((op)), \ |
203 | Fcons ((a1), Fcons ((a2), Qnil)))) | |
b70021f4 MR |
204 | |
205 | /* Extract a Lisp number as a `double', or signal an error. */ | |
206 | ||
207 | double | |
208 | extract_float (num) | |
209 | Lisp_Object num; | |
210 | { | |
211 | CHECK_NUMBER_OR_FLOAT (num, 0); | |
212 | ||
207a45c1 | 213 | if (FLOATP (num)) |
b70021f4 MR |
214 | return XFLOAT (num)->data; |
215 | return (double) XINT (num); | |
216 | } | |
c2d4ea74 RS |
217 | \f |
218 | /* Trig functions. */ | |
b70021f4 MR |
219 | |
220 | DEFUN ("acos", Facos, Sacos, 1, 1, 0, | |
221 | "Return the inverse cosine of ARG.") | |
4b6baf5f RS |
222 | (arg) |
223 | register Lisp_Object arg; | |
b70021f4 | 224 | { |
4b6baf5f RS |
225 | double d = extract_float (arg); |
226 | #ifdef FLOAT_CHECK_DOMAIN | |
227 | if (d > 1.0 || d < -1.0) | |
228 | domain_error ("acos", arg); | |
229 | #endif | |
230 | IN_FLOAT (d = acos (d), "acos", arg); | |
b70021f4 MR |
231 | return make_float (d); |
232 | } | |
233 | ||
c2d4ea74 RS |
234 | DEFUN ("asin", Fasin, Sasin, 1, 1, 0, |
235 | "Return the inverse sine of ARG.") | |
4b6baf5f RS |
236 | (arg) |
237 | register Lisp_Object arg; | |
b70021f4 | 238 | { |
4b6baf5f RS |
239 | double d = extract_float (arg); |
240 | #ifdef FLOAT_CHECK_DOMAIN | |
241 | if (d > 1.0 || d < -1.0) | |
242 | domain_error ("asin", arg); | |
243 | #endif | |
244 | IN_FLOAT (d = asin (d), "asin", arg); | |
b70021f4 MR |
245 | return make_float (d); |
246 | } | |
247 | ||
c2d4ea74 RS |
248 | DEFUN ("atan", Fatan, Satan, 1, 1, 0, |
249 | "Return the inverse tangent of ARG.") | |
4b6baf5f RS |
250 | (arg) |
251 | register Lisp_Object arg; | |
b70021f4 | 252 | { |
4b6baf5f RS |
253 | double d = extract_float (arg); |
254 | IN_FLOAT (d = atan (d), "atan", arg); | |
b70021f4 MR |
255 | return make_float (d); |
256 | } | |
257 | ||
c2d4ea74 RS |
258 | DEFUN ("cos", Fcos, Scos, 1, 1, 0, |
259 | "Return the cosine of ARG.") | |
4b6baf5f RS |
260 | (arg) |
261 | register Lisp_Object arg; | |
b70021f4 | 262 | { |
4b6baf5f RS |
263 | double d = extract_float (arg); |
264 | IN_FLOAT (d = cos (d), "cos", arg); | |
b70021f4 MR |
265 | return make_float (d); |
266 | } | |
267 | ||
c2d4ea74 RS |
268 | DEFUN ("sin", Fsin, Ssin, 1, 1, 0, |
269 | "Return the sine of ARG.") | |
4b6baf5f RS |
270 | (arg) |
271 | register Lisp_Object arg; | |
b70021f4 | 272 | { |
4b6baf5f RS |
273 | double d = extract_float (arg); |
274 | IN_FLOAT (d = sin (d), "sin", arg); | |
b70021f4 MR |
275 | return make_float (d); |
276 | } | |
277 | ||
c2d4ea74 RS |
278 | DEFUN ("tan", Ftan, Stan, 1, 1, 0, |
279 | "Return the tangent of ARG.") | |
4b6baf5f RS |
280 | (arg) |
281 | register Lisp_Object arg; | |
282 | { | |
283 | double d = extract_float (arg); | |
284 | double c = cos (d); | |
285 | #ifdef FLOAT_CHECK_DOMAIN | |
286 | if (c == 0.0) | |
287 | domain_error ("tan", arg); | |
288 | #endif | |
289 | IN_FLOAT (d = sin (d) / c, "tan", arg); | |
b70021f4 MR |
290 | return make_float (d); |
291 | } | |
292 | \f | |
c2d4ea74 RS |
293 | #if 0 /* Leave these out unless we find there's a reason for them. */ |
294 | ||
b70021f4 MR |
295 | DEFUN ("bessel-j0", Fbessel_j0, Sbessel_j0, 1, 1, 0, |
296 | "Return the bessel function j0 of ARG.") | |
4b6baf5f RS |
297 | (arg) |
298 | register Lisp_Object arg; | |
b70021f4 | 299 | { |
4b6baf5f RS |
300 | double d = extract_float (arg); |
301 | IN_FLOAT (d = j0 (d), "bessel-j0", arg); | |
b70021f4 MR |
302 | return make_float (d); |
303 | } | |
304 | ||
305 | DEFUN ("bessel-j1", Fbessel_j1, Sbessel_j1, 1, 1, 0, | |
306 | "Return the bessel function j1 of ARG.") | |
4b6baf5f RS |
307 | (arg) |
308 | register Lisp_Object arg; | |
b70021f4 | 309 | { |
4b6baf5f RS |
310 | double d = extract_float (arg); |
311 | IN_FLOAT (d = j1 (d), "bessel-j1", arg); | |
b70021f4 MR |
312 | return make_float (d); |
313 | } | |
314 | ||
315 | DEFUN ("bessel-jn", Fbessel_jn, Sbessel_jn, 2, 2, 0, | |
316 | "Return the order N bessel function output jn of ARG.\n\ | |
317 | The first arg (the order) is truncated to an integer.") | |
4b6baf5f RS |
318 | (arg1, arg2) |
319 | register Lisp_Object arg1, arg2; | |
b70021f4 | 320 | { |
4b6baf5f RS |
321 | int i1 = extract_float (arg1); |
322 | double f2 = extract_float (arg2); | |
b70021f4 | 323 | |
4b6baf5f | 324 | IN_FLOAT (f2 = jn (i1, f2), "bessel-jn", arg1); |
b70021f4 MR |
325 | return make_float (f2); |
326 | } | |
327 | ||
328 | DEFUN ("bessel-y0", Fbessel_y0, Sbessel_y0, 1, 1, 0, | |
329 | "Return the bessel function y0 of ARG.") | |
4b6baf5f RS |
330 | (arg) |
331 | register Lisp_Object arg; | |
b70021f4 | 332 | { |
4b6baf5f RS |
333 | double d = extract_float (arg); |
334 | IN_FLOAT (d = y0 (d), "bessel-y0", arg); | |
b70021f4 MR |
335 | return make_float (d); |
336 | } | |
337 | ||
338 | DEFUN ("bessel-y1", Fbessel_y1, Sbessel_y1, 1, 1, 0, | |
339 | "Return the bessel function y1 of ARG.") | |
4b6baf5f RS |
340 | (arg) |
341 | register Lisp_Object arg; | |
b70021f4 | 342 | { |
4b6baf5f RS |
343 | double d = extract_float (arg); |
344 | IN_FLOAT (d = y1 (d), "bessel-y0", arg); | |
b70021f4 MR |
345 | return make_float (d); |
346 | } | |
347 | ||
348 | DEFUN ("bessel-yn", Fbessel_yn, Sbessel_yn, 2, 2, 0, | |
349 | "Return the order N bessel function output yn of ARG.\n\ | |
350 | The first arg (the order) is truncated to an integer.") | |
4b6baf5f RS |
351 | (arg1, arg2) |
352 | register Lisp_Object arg1, arg2; | |
b70021f4 | 353 | { |
4b6baf5f RS |
354 | int i1 = extract_float (arg1); |
355 | double f2 = extract_float (arg2); | |
b70021f4 | 356 | |
4b6baf5f | 357 | IN_FLOAT (f2 = yn (i1, f2), "bessel-yn", arg1); |
b70021f4 MR |
358 | return make_float (f2); |
359 | } | |
b70021f4 | 360 | |
c2d4ea74 RS |
361 | #endif |
362 | \f | |
363 | #if 0 /* Leave these out unless we see they are worth having. */ | |
b70021f4 MR |
364 | |
365 | DEFUN ("erf", Ferf, Serf, 1, 1, 0, | |
366 | "Return the mathematical error function of ARG.") | |
4b6baf5f RS |
367 | (arg) |
368 | register Lisp_Object arg; | |
b70021f4 | 369 | { |
4b6baf5f RS |
370 | double d = extract_float (arg); |
371 | IN_FLOAT (d = erf (d), "erf", arg); | |
b70021f4 MR |
372 | return make_float (d); |
373 | } | |
374 | ||
375 | DEFUN ("erfc", Ferfc, Serfc, 1, 1, 0, | |
376 | "Return the complementary error function of ARG.") | |
4b6baf5f RS |
377 | (arg) |
378 | register Lisp_Object arg; | |
b70021f4 | 379 | { |
4b6baf5f RS |
380 | double d = extract_float (arg); |
381 | IN_FLOAT (d = erfc (d), "erfc", arg); | |
b70021f4 MR |
382 | return make_float (d); |
383 | } | |
384 | ||
b70021f4 MR |
385 | DEFUN ("log-gamma", Flog_gamma, Slog_gamma, 1, 1, 0, |
386 | "Return the log gamma of ARG.") | |
4b6baf5f RS |
387 | (arg) |
388 | register Lisp_Object arg; | |
b70021f4 | 389 | { |
4b6baf5f RS |
390 | double d = extract_float (arg); |
391 | IN_FLOAT (d = lgamma (d), "log-gamma", arg); | |
b70021f4 MR |
392 | return make_float (d); |
393 | } | |
394 | ||
4b6baf5f | 395 | DEFUN ("cube-root", Fcube_root, Scube_root, 1, 1, 0, |
c2d4ea74 | 396 | "Return the cube root of ARG.") |
4b6baf5f RS |
397 | (arg) |
398 | register Lisp_Object arg; | |
b70021f4 | 399 | { |
4b6baf5f RS |
400 | double d = extract_float (arg); |
401 | #ifdef HAVE_CBRT | |
402 | IN_FLOAT (d = cbrt (d), "cube-root", arg); | |
403 | #else | |
404 | if (d >= 0.0) | |
405 | IN_FLOAT (d = pow (d, 1.0/3.0), "cube-root", arg); | |
406 | else | |
407 | IN_FLOAT (d = -pow (-d, 1.0/3.0), "cube-root", arg); | |
408 | #endif | |
b70021f4 MR |
409 | return make_float (d); |
410 | } | |
411 | ||
706ac90d RS |
412 | #endif |
413 | \f | |
c2d4ea74 RS |
414 | DEFUN ("exp", Fexp, Sexp, 1, 1, 0, |
415 | "Return the exponential base e of ARG.") | |
4b6baf5f RS |
416 | (arg) |
417 | register Lisp_Object arg; | |
418 | { | |
419 | double d = extract_float (arg); | |
420 | #ifdef FLOAT_CHECK_DOMAIN | |
421 | if (d > 709.7827) /* Assume IEEE doubles here */ | |
422 | range_error ("exp", arg); | |
423 | else if (d < -709.0) | |
424 | return make_float (0.0); | |
425 | else | |
426 | #endif | |
427 | IN_FLOAT (d = exp (d), "exp", arg); | |
b70021f4 MR |
428 | return make_float (d); |
429 | } | |
430 | ||
b70021f4 | 431 | DEFUN ("expt", Fexpt, Sexpt, 2, 2, 0, |
4fd72a6a | 432 | "Return the exponential ARG1 ** ARG2.") |
4b6baf5f RS |
433 | (arg1, arg2) |
434 | register Lisp_Object arg1, arg2; | |
b70021f4 MR |
435 | { |
436 | double f1, f2; | |
437 | ||
4b6baf5f RS |
438 | CHECK_NUMBER_OR_FLOAT (arg1, 0); |
439 | CHECK_NUMBER_OR_FLOAT (arg2, 0); | |
207a45c1 KH |
440 | if (INTEGERP (arg1) /* common lisp spec */ |
441 | && INTEGERP (arg2)) /* don't promote, if both are ints */ | |
b70021f4 | 442 | { /* this can be improved by pre-calculating */ |
9a51b24a | 443 | EMACS_INT acc, x, y; /* some binary powers of x then accumulating */ |
4be1d460 RS |
444 | Lisp_Object val; |
445 | ||
4b6baf5f RS |
446 | x = XINT (arg1); |
447 | y = XINT (arg2); | |
b70021f4 MR |
448 | acc = 1; |
449 | ||
450 | if (y < 0) | |
451 | { | |
4b6baf5f RS |
452 | if (x == 1) |
453 | acc = 1; | |
454 | else if (x == -1) | |
455 | acc = (y & 1) ? -1 : 1; | |
456 | else | |
457 | acc = 0; | |
b70021f4 MR |
458 | } |
459 | else | |
460 | { | |
4b6baf5f RS |
461 | while (y > 0) |
462 | { | |
463 | if (y & 1) | |
464 | acc *= x; | |
465 | x *= x; | |
466 | y = (unsigned)y >> 1; | |
467 | } | |
b70021f4 | 468 | } |
e0cb2a68 | 469 | XSETINT (val, acc); |
4be1d460 | 470 | return val; |
b70021f4 | 471 | } |
207a45c1 KH |
472 | f1 = FLOATP (arg1) ? XFLOAT (arg1)->data : XINT (arg1); |
473 | f2 = FLOATP (arg2) ? XFLOAT (arg2)->data : XINT (arg2); | |
4b6baf5f RS |
474 | /* Really should check for overflow, too */ |
475 | if (f1 == 0.0 && f2 == 0.0) | |
476 | f1 = 1.0; | |
477 | #ifdef FLOAT_CHECK_DOMAIN | |
478 | else if ((f1 == 0.0 && f2 < 0.0) || (f1 < 0 && f2 != floor(f2))) | |
479 | domain_error2 ("expt", arg1, arg2); | |
480 | #endif | |
28d849db | 481 | IN_FLOAT2 (f1 = pow (f1, f2), "expt", arg1, arg2); |
b70021f4 MR |
482 | return make_float (f1); |
483 | } | |
c2d4ea74 | 484 | |
56abb480 | 485 | DEFUN ("log", Flog, Slog, 1, 2, 0, |
4b6baf5f RS |
486 | "Return the natural logarithm of ARG.\n\ |
487 | If second optional argument BASE is given, return log ARG using that base.") | |
488 | (arg, base) | |
489 | register Lisp_Object arg, base; | |
b70021f4 | 490 | { |
4b6baf5f | 491 | double d = extract_float (arg); |
56abb480 | 492 | |
4b6baf5f RS |
493 | #ifdef FLOAT_CHECK_DOMAIN |
494 | if (d <= 0.0) | |
495 | domain_error2 ("log", arg, base); | |
496 | #endif | |
56abb480 | 497 | if (NILP (base)) |
4b6baf5f | 498 | IN_FLOAT (d = log (d), "log", arg); |
56abb480 JB |
499 | else |
500 | { | |
501 | double b = extract_float (base); | |
502 | ||
4b6baf5f RS |
503 | #ifdef FLOAT_CHECK_DOMAIN |
504 | if (b <= 0.0 || b == 1.0) | |
505 | domain_error2 ("log", arg, base); | |
506 | #endif | |
507 | if (b == 10.0) | |
508 | IN_FLOAT2 (d = log10 (d), "log", arg, base); | |
509 | else | |
f8131ed2 | 510 | IN_FLOAT2 (d = log (d) / log (b), "log", arg, base); |
56abb480 | 511 | } |
b70021f4 MR |
512 | return make_float (d); |
513 | } | |
514 | ||
c2d4ea74 RS |
515 | DEFUN ("log10", Flog10, Slog10, 1, 1, 0, |
516 | "Return the logarithm base 10 of ARG.") | |
4b6baf5f RS |
517 | (arg) |
518 | register Lisp_Object arg; | |
b70021f4 | 519 | { |
4b6baf5f RS |
520 | double d = extract_float (arg); |
521 | #ifdef FLOAT_CHECK_DOMAIN | |
522 | if (d <= 0.0) | |
523 | domain_error ("log10", arg); | |
524 | #endif | |
525 | IN_FLOAT (d = log10 (d), "log10", arg); | |
c2d4ea74 RS |
526 | return make_float (d); |
527 | } | |
528 | ||
b70021f4 MR |
529 | DEFUN ("sqrt", Fsqrt, Ssqrt, 1, 1, 0, |
530 | "Return the square root of ARG.") | |
4b6baf5f RS |
531 | (arg) |
532 | register Lisp_Object arg; | |
b70021f4 | 533 | { |
4b6baf5f RS |
534 | double d = extract_float (arg); |
535 | #ifdef FLOAT_CHECK_DOMAIN | |
536 | if (d < 0.0) | |
537 | domain_error ("sqrt", arg); | |
538 | #endif | |
539 | IN_FLOAT (d = sqrt (d), "sqrt", arg); | |
b70021f4 MR |
540 | return make_float (d); |
541 | } | |
c2d4ea74 | 542 | \f |
706ac90d | 543 | #if 0 /* Not clearly worth adding. */ |
b70021f4 | 544 | |
c2d4ea74 RS |
545 | DEFUN ("acosh", Facosh, Sacosh, 1, 1, 0, |
546 | "Return the inverse hyperbolic cosine of ARG.") | |
4b6baf5f RS |
547 | (arg) |
548 | register Lisp_Object arg; | |
b70021f4 | 549 | { |
4b6baf5f RS |
550 | double d = extract_float (arg); |
551 | #ifdef FLOAT_CHECK_DOMAIN | |
552 | if (d < 1.0) | |
553 | domain_error ("acosh", arg); | |
554 | #endif | |
555 | #ifdef HAVE_INVERSE_HYPERBOLIC | |
556 | IN_FLOAT (d = acosh (d), "acosh", arg); | |
557 | #else | |
558 | IN_FLOAT (d = log (d + sqrt (d*d - 1.0)), "acosh", arg); | |
559 | #endif | |
c2d4ea74 RS |
560 | return make_float (d); |
561 | } | |
562 | ||
563 | DEFUN ("asinh", Fasinh, Sasinh, 1, 1, 0, | |
564 | "Return the inverse hyperbolic sine of ARG.") | |
4b6baf5f RS |
565 | (arg) |
566 | register Lisp_Object arg; | |
c2d4ea74 | 567 | { |
4b6baf5f RS |
568 | double d = extract_float (arg); |
569 | #ifdef HAVE_INVERSE_HYPERBOLIC | |
570 | IN_FLOAT (d = asinh (d), "asinh", arg); | |
571 | #else | |
572 | IN_FLOAT (d = log (d + sqrt (d*d + 1.0)), "asinh", arg); | |
573 | #endif | |
c2d4ea74 RS |
574 | return make_float (d); |
575 | } | |
576 | ||
577 | DEFUN ("atanh", Fatanh, Satanh, 1, 1, 0, | |
578 | "Return the inverse hyperbolic tangent of ARG.") | |
4b6baf5f RS |
579 | (arg) |
580 | register Lisp_Object arg; | |
c2d4ea74 | 581 | { |
4b6baf5f RS |
582 | double d = extract_float (arg); |
583 | #ifdef FLOAT_CHECK_DOMAIN | |
584 | if (d >= 1.0 || d <= -1.0) | |
585 | domain_error ("atanh", arg); | |
586 | #endif | |
587 | #ifdef HAVE_INVERSE_HYPERBOLIC | |
588 | IN_FLOAT (d = atanh (d), "atanh", arg); | |
589 | #else | |
590 | IN_FLOAT (d = 0.5 * log ((1.0 + d) / (1.0 - d)), "atanh", arg); | |
591 | #endif | |
c2d4ea74 RS |
592 | return make_float (d); |
593 | } | |
594 | ||
595 | DEFUN ("cosh", Fcosh, Scosh, 1, 1, 0, | |
596 | "Return the hyperbolic cosine of ARG.") | |
4b6baf5f RS |
597 | (arg) |
598 | register Lisp_Object arg; | |
c2d4ea74 | 599 | { |
4b6baf5f RS |
600 | double d = extract_float (arg); |
601 | #ifdef FLOAT_CHECK_DOMAIN | |
602 | if (d > 710.0 || d < -710.0) | |
603 | range_error ("cosh", arg); | |
604 | #endif | |
605 | IN_FLOAT (d = cosh (d), "cosh", arg); | |
c2d4ea74 RS |
606 | return make_float (d); |
607 | } | |
608 | ||
609 | DEFUN ("sinh", Fsinh, Ssinh, 1, 1, 0, | |
610 | "Return the hyperbolic sine of ARG.") | |
4b6baf5f RS |
611 | (arg) |
612 | register Lisp_Object arg; | |
c2d4ea74 | 613 | { |
4b6baf5f RS |
614 | double d = extract_float (arg); |
615 | #ifdef FLOAT_CHECK_DOMAIN | |
616 | if (d > 710.0 || d < -710.0) | |
617 | range_error ("sinh", arg); | |
618 | #endif | |
619 | IN_FLOAT (d = sinh (d), "sinh", arg); | |
b70021f4 MR |
620 | return make_float (d); |
621 | } | |
622 | ||
623 | DEFUN ("tanh", Ftanh, Stanh, 1, 1, 0, | |
624 | "Return the hyperbolic tangent of ARG.") | |
4b6baf5f RS |
625 | (arg) |
626 | register Lisp_Object arg; | |
b70021f4 | 627 | { |
4b6baf5f RS |
628 | double d = extract_float (arg); |
629 | IN_FLOAT (d = tanh (d), "tanh", arg); | |
b70021f4 MR |
630 | return make_float (d); |
631 | } | |
c2d4ea74 | 632 | #endif |
b70021f4 MR |
633 | \f |
634 | DEFUN ("abs", Fabs, Sabs, 1, 1, 0, | |
635 | "Return the absolute value of ARG.") | |
4b6baf5f RS |
636 | (arg) |
637 | register Lisp_Object arg; | |
b70021f4 | 638 | { |
4b6baf5f | 639 | CHECK_NUMBER_OR_FLOAT (arg, 0); |
b70021f4 | 640 | |
207a45c1 | 641 | if (FLOATP (arg)) |
4b6baf5f RS |
642 | IN_FLOAT (arg = make_float (fabs (XFLOAT (arg)->data)), "abs", arg); |
643 | else if (XINT (arg) < 0) | |
db37cb37 | 644 | XSETINT (arg, - XINT (arg)); |
b70021f4 | 645 | |
4b6baf5f | 646 | return arg; |
b70021f4 MR |
647 | } |
648 | ||
649 | DEFUN ("float", Ffloat, Sfloat, 1, 1, 0, | |
650 | "Return the floating point number equal to ARG.") | |
4b6baf5f RS |
651 | (arg) |
652 | register Lisp_Object arg; | |
b70021f4 | 653 | { |
4b6baf5f | 654 | CHECK_NUMBER_OR_FLOAT (arg, 0); |
b70021f4 | 655 | |
207a45c1 | 656 | if (INTEGERP (arg)) |
4b6baf5f | 657 | return make_float ((double) XINT (arg)); |
b70021f4 | 658 | else /* give 'em the same float back */ |
4b6baf5f | 659 | return arg; |
b70021f4 MR |
660 | } |
661 | ||
662 | DEFUN ("logb", Flogb, Slogb, 1, 1, 0, | |
1a3ac8b9 | 663 | "Returns largest integer <= the base 2 log of the magnitude of ARG.\n\ |
b70021f4 | 664 | This is the same as the exponent of a float.") |
4b6baf5f RS |
665 | (arg) |
666 | Lisp_Object arg; | |
b70021f4 | 667 | { |
340176df | 668 | Lisp_Object val; |
a7bf3c54 | 669 | EMACS_INT value; |
5bf54166 | 670 | double f = extract_float (arg); |
340176df | 671 | |
6694b327 KH |
672 | if (f == 0.0) |
673 | value = -(VALMASK >> 1); | |
674 | else | |
675 | { | |
6d3c6adb | 676 | #ifdef HAVE_LOGB |
6694b327 | 677 | IN_FLOAT (value = logb (f), "logb", arg); |
6d3c6adb JB |
678 | #else |
679 | #ifdef HAVE_FREXP | |
c8bf6cf3 KH |
680 | int ivalue; |
681 | IN_FLOAT (frexp (f, &ivalue), "logb", arg); | |
682 | value = ivalue - 1; | |
c26406fe | 683 | #else |
6694b327 KH |
684 | int i; |
685 | double d; | |
686 | if (f < 0.0) | |
687 | f = -f; | |
688 | value = -1; | |
689 | while (f < 0.5) | |
690 | { | |
691 | for (i = 1, d = 0.5; d * d >= f; i += i) | |
692 | d *= d; | |
693 | f /= d; | |
694 | value -= i; | |
695 | } | |
696 | while (f >= 1.0) | |
697 | { | |
698 | for (i = 1, d = 2.0; d * d <= f; i += i) | |
699 | d *= d; | |
700 | f /= d; | |
701 | value += i; | |
702 | } | |
6d3c6adb | 703 | #endif |
340176df | 704 | #endif |
6694b327 | 705 | } |
e0cb2a68 | 706 | XSETINT (val, value); |
c26406fe | 707 | return val; |
b70021f4 MR |
708 | } |
709 | ||
710 | /* the rounding functions */ | |
711 | ||
712 | DEFUN ("ceiling", Fceiling, Sceiling, 1, 1, 0, | |
713 | "Return the smallest integer no less than ARG. (Round toward +inf.)") | |
4b6baf5f RS |
714 | (arg) |
715 | register Lisp_Object arg; | |
b70021f4 | 716 | { |
4b6baf5f | 717 | CHECK_NUMBER_OR_FLOAT (arg, 0); |
b70021f4 | 718 | |
207a45c1 | 719 | if (FLOATP (arg)) |
81a63ccc KH |
720 | { |
721 | double d; | |
722 | ||
723 | IN_FLOAT (d = ceil (XFLOAT (arg)->data), "ceiling", arg); | |
724 | FLOAT_TO_INT (d, arg, "ceiling", arg); | |
725 | } | |
b70021f4 | 726 | |
4b6baf5f | 727 | return arg; |
b70021f4 MR |
728 | } |
729 | ||
fc2157cb PE |
730 | #endif /* LISP_FLOAT_TYPE */ |
731 | ||
732 | ||
733 | DEFUN ("floor", Ffloor, Sfloor, 1, 2, 0, | |
734 | "Return the largest integer no greater than ARG. (Round towards -inf.)\n\ | |
735 | With optional DIVISOR, return the largest integer no greater than ARG/DIVISOR.") | |
736 | (arg, divisor) | |
737 | register Lisp_Object arg, divisor; | |
b70021f4 | 738 | { |
4b6baf5f | 739 | CHECK_NUMBER_OR_FLOAT (arg, 0); |
b70021f4 | 740 | |
fc2157cb PE |
741 | if (! NILP (divisor)) |
742 | { | |
9a51b24a | 743 | EMACS_INT i1, i2; |
fc2157cb PE |
744 | |
745 | CHECK_NUMBER_OR_FLOAT (divisor, 1); | |
746 | ||
747 | #ifdef LISP_FLOAT_TYPE | |
207a45c1 | 748 | if (FLOATP (arg) || FLOATP (divisor)) |
fc2157cb PE |
749 | { |
750 | double f1, f2; | |
751 | ||
207a45c1 KH |
752 | f1 = FLOATP (arg) ? XFLOAT (arg)->data : XINT (arg); |
753 | f2 = (FLOATP (divisor) ? XFLOAT (divisor)->data : XINT (divisor)); | |
fc2157cb PE |
754 | if (f2 == 0) |
755 | Fsignal (Qarith_error, Qnil); | |
756 | ||
81a63ccc KH |
757 | IN_FLOAT2 (f1 = floor (f1 / f2), "floor", arg, divisor); |
758 | FLOAT_TO_INT2 (f1, arg, "floor", arg, divisor); | |
fc2157cb PE |
759 | return arg; |
760 | } | |
761 | #endif | |
762 | ||
763 | i1 = XINT (arg); | |
764 | i2 = XINT (divisor); | |
765 | ||
766 | if (i2 == 0) | |
767 | Fsignal (Qarith_error, Qnil); | |
768 | ||
769 | /* With C's /, the result is implementation-defined if either operand | |
770 | is negative, so use only nonnegative operands. */ | |
771 | i1 = (i2 < 0 | |
772 | ? (i1 <= 0 ? -i1 / -i2 : -1 - ((i1 - 1) / -i2)) | |
773 | : (i1 < 0 ? -1 - ((-1 - i1) / i2) : i1 / i2)); | |
774 | ||
e0cb2a68 | 775 | XSETINT (arg, i1); |
fc2157cb PE |
776 | return arg; |
777 | } | |
778 | ||
779 | #ifdef LISP_FLOAT_TYPE | |
207a45c1 | 780 | if (FLOATP (arg)) |
81a63ccc KH |
781 | { |
782 | double d; | |
783 | IN_FLOAT (d = floor (XFLOAT (arg)->data), "floor", arg); | |
784 | FLOAT_TO_INT (d, arg, "floor", arg); | |
785 | } | |
fc2157cb | 786 | #endif |
b70021f4 | 787 | |
4b6baf5f | 788 | return arg; |
b70021f4 MR |
789 | } |
790 | ||
fc2157cb PE |
791 | #ifdef LISP_FLOAT_TYPE |
792 | ||
b70021f4 MR |
793 | DEFUN ("round", Fround, Sround, 1, 1, 0, |
794 | "Return the nearest integer to ARG.") | |
4b6baf5f RS |
795 | (arg) |
796 | register Lisp_Object arg; | |
b70021f4 | 797 | { |
4b6baf5f | 798 | CHECK_NUMBER_OR_FLOAT (arg, 0); |
b70021f4 | 799 | |
207a45c1 | 800 | if (FLOATP (arg)) |
81a63ccc KH |
801 | { |
802 | double d; | |
803 | ||
804 | /* Screw the prevailing rounding mode. */ | |
805 | IN_FLOAT (d = rint (XFLOAT (arg)->data), "round", arg); | |
806 | FLOAT_TO_INT (d, arg, "round", arg); | |
807 | } | |
b70021f4 | 808 | |
4b6baf5f | 809 | return arg; |
b70021f4 MR |
810 | } |
811 | ||
812 | DEFUN ("truncate", Ftruncate, Struncate, 1, 1, 0, | |
813 | "Truncate a floating point number to an int.\n\ | |
814 | Rounds the value toward zero.") | |
4b6baf5f RS |
815 | (arg) |
816 | register Lisp_Object arg; | |
b70021f4 | 817 | { |
4b6baf5f | 818 | CHECK_NUMBER_OR_FLOAT (arg, 0); |
b70021f4 | 819 | |
207a45c1 | 820 | if (FLOATP (arg)) |
81a63ccc KH |
821 | { |
822 | double d; | |
823 | ||
824 | d = XFLOAT (arg)->data; | |
825 | FLOAT_TO_INT (d, arg, "truncate", arg); | |
826 | } | |
4b6baf5f RS |
827 | |
828 | return arg; | |
829 | } | |
830 | \f | |
4b6baf5f RS |
831 | /* It's not clear these are worth adding. */ |
832 | ||
833 | DEFUN ("fceiling", Ffceiling, Sfceiling, 1, 1, 0, | |
834 | "Return the smallest integer no less than ARG, as a float.\n\ | |
835 | \(Round toward +inf.\)") | |
836 | (arg) | |
837 | register Lisp_Object arg; | |
838 | { | |
839 | double d = extract_float (arg); | |
840 | IN_FLOAT (d = ceil (d), "fceiling", arg); | |
841 | return make_float (d); | |
842 | } | |
843 | ||
844 | DEFUN ("ffloor", Fffloor, Sffloor, 1, 1, 0, | |
845 | "Return the largest integer no greater than ARG, as a float.\n\ | |
846 | \(Round towards -inf.\)") | |
847 | (arg) | |
848 | register Lisp_Object arg; | |
849 | { | |
850 | double d = extract_float (arg); | |
851 | IN_FLOAT (d = floor (d), "ffloor", arg); | |
852 | return make_float (d); | |
853 | } | |
b70021f4 | 854 | |
4b6baf5f RS |
855 | DEFUN ("fround", Ffround, Sfround, 1, 1, 0, |
856 | "Return the nearest integer to ARG, as a float.") | |
857 | (arg) | |
858 | register Lisp_Object arg; | |
859 | { | |
860 | double d = extract_float (arg); | |
892ed7e0 | 861 | IN_FLOAT (d = rint (d), "fround", arg); |
4b6baf5f RS |
862 | return make_float (d); |
863 | } | |
864 | ||
865 | DEFUN ("ftruncate", Fftruncate, Sftruncate, 1, 1, 0, | |
866 | "Truncate a floating point number to an integral float value.\n\ | |
867 | Rounds the value toward zero.") | |
868 | (arg) | |
869 | register Lisp_Object arg; | |
870 | { | |
871 | double d = extract_float (arg); | |
872 | if (d >= 0.0) | |
873 | IN_FLOAT (d = floor (d), "ftruncate", arg); | |
874 | else | |
a3fc5236 | 875 | IN_FLOAT (d = ceil (d), "ftruncate", arg); |
4b6baf5f | 876 | return make_float (d); |
b70021f4 MR |
877 | } |
878 | \f | |
4b6baf5f | 879 | #ifdef FLOAT_CATCH_SIGILL |
4746118a | 880 | static SIGTYPE |
b70021f4 MR |
881 | float_error (signo) |
882 | int signo; | |
883 | { | |
884 | if (! in_float) | |
885 | fatal_error_signal (signo); | |
886 | ||
265a9e55 | 887 | #ifdef BSD |
b70021f4 MR |
888 | #ifdef BSD4_1 |
889 | sigrelse (SIGILL); | |
890 | #else /* not BSD4_1 */ | |
e065a56e | 891 | sigsetmask (SIGEMPTYMASK); |
b70021f4 | 892 | #endif /* not BSD4_1 */ |
265a9e55 JB |
893 | #else |
894 | /* Must reestablish handler each time it is called. */ | |
895 | signal (SIGILL, float_error); | |
896 | #endif /* BSD */ | |
b70021f4 MR |
897 | |
898 | in_float = 0; | |
899 | ||
900 | Fsignal (Qarith_error, Fcons (float_error_arg, Qnil)); | |
901 | } | |
902 | ||
4b6baf5f RS |
903 | /* Another idea was to replace the library function `infnan' |
904 | where SIGILL is signaled. */ | |
905 | ||
906 | #endif /* FLOAT_CATCH_SIGILL */ | |
907 | ||
908 | #ifdef HAVE_MATHERR | |
909 | int | |
910 | matherr (x) | |
911 | struct exception *x; | |
912 | { | |
913 | Lisp_Object args; | |
914 | if (! in_float) | |
915 | /* Not called from emacs-lisp float routines; do the default thing. */ | |
916 | return 0; | |
917 | if (!strcmp (x->name, "pow")) | |
918 | x->name = "expt"; | |
919 | ||
920 | args | |
921 | = Fcons (build_string (x->name), | |
922 | Fcons (make_float (x->arg1), | |
923 | ((!strcmp (x->name, "log") || !strcmp (x->name, "pow")) | |
924 | ? Fcons (make_float (x->arg2), Qnil) | |
925 | : Qnil))); | |
926 | switch (x->type) | |
927 | { | |
928 | case DOMAIN: Fsignal (Qdomain_error, args); break; | |
929 | case SING: Fsignal (Qsingularity_error, args); break; | |
930 | case OVERFLOW: Fsignal (Qoverflow_error, args); break; | |
931 | case UNDERFLOW: Fsignal (Qunderflow_error, args); break; | |
932 | default: Fsignal (Qarith_error, args); break; | |
933 | } | |
934 | return (1); /* don't set errno or print a message */ | |
935 | } | |
936 | #endif /* HAVE_MATHERR */ | |
937 | ||
b70021f4 MR |
938 | init_floatfns () |
939 | { | |
4b6baf5f | 940 | #ifdef FLOAT_CATCH_SIGILL |
b70021f4 | 941 | signal (SIGILL, float_error); |
4b6baf5f | 942 | #endif |
b70021f4 MR |
943 | in_float = 0; |
944 | } | |
945 | ||
fc2157cb PE |
946 | #else /* not LISP_FLOAT_TYPE */ |
947 | ||
948 | init_floatfns () | |
949 | {} | |
950 | ||
951 | #endif /* not LISP_FLOAT_TYPE */ | |
952 | ||
b70021f4 MR |
953 | syms_of_floatfns () |
954 | { | |
fc2157cb | 955 | #ifdef LISP_FLOAT_TYPE |
b70021f4 | 956 | defsubr (&Sacos); |
b70021f4 | 957 | defsubr (&Sasin); |
b70021f4 | 958 | defsubr (&Satan); |
c2d4ea74 RS |
959 | defsubr (&Scos); |
960 | defsubr (&Ssin); | |
961 | defsubr (&Stan); | |
962 | #if 0 | |
963 | defsubr (&Sacosh); | |
964 | defsubr (&Sasinh); | |
b70021f4 | 965 | defsubr (&Satanh); |
c2d4ea74 RS |
966 | defsubr (&Scosh); |
967 | defsubr (&Ssinh); | |
968 | defsubr (&Stanh); | |
b70021f4 MR |
969 | defsubr (&Sbessel_y0); |
970 | defsubr (&Sbessel_y1); | |
971 | defsubr (&Sbessel_yn); | |
972 | defsubr (&Sbessel_j0); | |
973 | defsubr (&Sbessel_j1); | |
974 | defsubr (&Sbessel_jn); | |
b70021f4 MR |
975 | defsubr (&Serf); |
976 | defsubr (&Serfc); | |
c2d4ea74 | 977 | defsubr (&Slog_gamma); |
4b6baf5f | 978 | defsubr (&Scube_root); |
892ed7e0 | 979 | #endif |
4b6baf5f RS |
980 | defsubr (&Sfceiling); |
981 | defsubr (&Sffloor); | |
982 | defsubr (&Sfround); | |
983 | defsubr (&Sftruncate); | |
b70021f4 | 984 | defsubr (&Sexp); |
c2d4ea74 | 985 | defsubr (&Sexpt); |
b70021f4 MR |
986 | defsubr (&Slog); |
987 | defsubr (&Slog10); | |
b70021f4 | 988 | defsubr (&Ssqrt); |
b70021f4 MR |
989 | |
990 | defsubr (&Sabs); | |
991 | defsubr (&Sfloat); | |
992 | defsubr (&Slogb); | |
993 | defsubr (&Sceiling); | |
b70021f4 MR |
994 | defsubr (&Sround); |
995 | defsubr (&Struncate); | |
fc2157cb PE |
996 | #endif /* LISP_FLOAT_TYPE */ |
997 | defsubr (&Sfloor); | |
b70021f4 | 998 | } |