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 | |
3b7ad313 EN |
18 | the Free Software Foundation, Inc., 59 Temple Place - Suite 330, |
19 | Boston, MA 02111-1307, USA. */ | |
b70021f4 MR |
20 | |
21 | ||
4b6baf5f RS |
22 | /* ANSI C requires only these float functions: |
23 | acos, asin, atan, atan2, ceil, cos, cosh, exp, fabs, floor, fmod, | |
24 | frexp, ldexp, log, log10, modf, pow, sin, sinh, sqrt, tan, tanh. | |
25 | ||
26 | Define HAVE_INVERSE_HYPERBOLIC if you have acosh, asinh, and atanh. | |
27 | Define HAVE_CBRT if you have cbrt. | |
28 | Define HAVE_RINT if you have rint. | |
29 | If you don't define these, then the appropriate routines will be simulated. | |
30 | ||
31 | Define HAVE_MATHERR if on a system supporting the SysV matherr callback. | |
32 | (This should happen automatically.) | |
33 | ||
34 | Define FLOAT_CHECK_ERRNO if the float library routines set errno. | |
35 | This has no effect if HAVE_MATHERR is defined. | |
36 | ||
37 | Define FLOAT_CATCH_SIGILL if the float library routines signal SIGILL. | |
38 | (What systems actually do this? Please let us know.) | |
39 | ||
40 | Define FLOAT_CHECK_DOMAIN if the float library doesn't handle errors by | |
8e6208c5 | 41 | either setting errno, or signaling SIGFPE/SIGILL. Otherwise, domain and |
4b6baf5f RS |
42 | range checking will happen before calling the float routines. This has |
43 | no effect if HAVE_MATHERR is defined (since matherr will be called when | |
44 | a domain error occurs.) | |
45 | */ | |
46 | ||
b70021f4 MR |
47 | #include <signal.h> |
48 | ||
18160b98 | 49 | #include <config.h> |
b70021f4 | 50 | #include "lisp.h" |
e065a56e | 51 | #include "syssignal.h" |
b70021f4 MR |
52 | |
53 | Lisp_Object Qarith_error; | |
54 | ||
55 | #ifdef LISP_FLOAT_TYPE | |
265a9e55 | 56 | |
4cd7a373 RS |
57 | /* Work around a problem that happens because math.h on hpux 7 |
58 | defines two static variables--which, in Emacs, are not really static, | |
59 | because `static' is defined as nothing. The problem is that they are | |
60 | defined both here and in lread.c. | |
61 | These macros prevent the name conflict. */ | |
62 | #if defined (HPUX) && !defined (HPUX8) | |
63 | #define _MAXLDBL floatfns_maxldbl | |
64 | #define _NMAXLDBL floatfns_nmaxldbl | |
65 | #endif | |
66 | ||
b70021f4 | 67 | #include <math.h> |
4b6baf5f | 68 | |
32085e8e | 69 | /* This declaration is omitted on some systems, like Ultrix. */ |
7a4720e2 | 70 | #if !defined (HPUX) && defined (HAVE_LOGB) && !defined (logb) |
c26406fe | 71 | extern double logb (); |
7a4720e2 | 72 | #endif /* not HPUX and HAVE_LOGB and no logb macro */ |
c26406fe | 73 | |
4b6baf5f RS |
74 | #if defined(DOMAIN) && defined(SING) && defined(OVERFLOW) |
75 | /* If those are defined, then this is probably a `matherr' machine. */ | |
76 | # ifndef HAVE_MATHERR | |
77 | # define HAVE_MATHERR | |
78 | # endif | |
79 | #endif | |
80 | ||
c0f0a4a2 | 81 | #ifdef NO_MATHERR |
f89182a2 RS |
82 | #undef HAVE_MATHERR |
83 | #endif | |
84 | ||
4b6baf5f RS |
85 | #ifdef HAVE_MATHERR |
86 | # ifdef FLOAT_CHECK_ERRNO | |
87 | # undef FLOAT_CHECK_ERRNO | |
88 | # endif | |
89 | # ifdef FLOAT_CHECK_DOMAIN | |
90 | # undef FLOAT_CHECK_DOMAIN | |
91 | # endif | |
92 | #endif | |
93 | ||
94 | #ifndef NO_FLOAT_CHECK_ERRNO | |
95 | #define FLOAT_CHECK_ERRNO | |
96 | #endif | |
97 | ||
98 | #ifdef FLOAT_CHECK_ERRNO | |
99 | # include <errno.h> | |
265a9e55 JB |
100 | |
101 | extern int errno; | |
4b6baf5f | 102 | #endif |
265a9e55 JB |
103 | |
104 | /* Avoid traps on VMS from sinh and cosh. | |
105 | All the other functions set errno instead. */ | |
106 | ||
107 | #ifdef VMS | |
108 | #undef cosh | |
109 | #undef sinh | |
110 | #define cosh(x) ((exp(x)+exp(-x))*0.5) | |
111 | #define sinh(x) ((exp(x)-exp(-x))*0.5) | |
112 | #endif /* VMS */ | |
113 | ||
4b6baf5f RS |
114 | #ifndef HAVE_RINT |
115 | #define rint(x) (floor((x)+0.5)) | |
116 | #endif | |
117 | ||
4746118a | 118 | static SIGTYPE float_error (); |
b70021f4 MR |
119 | |
120 | /* Nonzero while executing in floating point. | |
121 | This tells float_error what to do. */ | |
122 | ||
123 | static int in_float; | |
124 | ||
125 | /* If an argument is out of range for a mathematical function, | |
265a9e55 | 126 | here is the actual argument value to use in the error message. */ |
b70021f4 | 127 | |
4b6baf5f RS |
128 | static Lisp_Object float_error_arg, float_error_arg2; |
129 | ||
130 | static char *float_error_fn_name; | |
b70021f4 | 131 | |
265a9e55 JB |
132 | /* Evaluate the floating point expression D, recording NUM |
133 | as the original argument for error messages. | |
134 | D is normally an assignment expression. | |
f8d83099 JB |
135 | Handle errors which may result in signals or may set errno. |
136 | ||
137 | Note that float_error may be declared to return void, so you can't | |
138 | just cast the zero after the colon to (SIGTYPE) to make the types | |
139 | check properly. */ | |
265a9e55 | 140 | |
4b6baf5f RS |
141 | #ifdef FLOAT_CHECK_ERRNO |
142 | #define IN_FLOAT(d, name, num) \ | |
143 | do { \ | |
144 | float_error_arg = num; \ | |
145 | float_error_fn_name = name; \ | |
146 | in_float = 1; errno = 0; (d); in_float = 0; \ | |
147 | switch (errno) { \ | |
148 | case 0: break; \ | |
149 | case EDOM: domain_error (float_error_fn_name, float_error_arg); \ | |
150 | case ERANGE: range_error (float_error_fn_name, float_error_arg); \ | |
151 | default: arith_error (float_error_fn_name, float_error_arg); \ | |
152 | } \ | |
153 | } while (0) | |
154 | #define IN_FLOAT2(d, name, num, num2) \ | |
155 | do { \ | |
156 | float_error_arg = num; \ | |
157 | float_error_arg2 = num2; \ | |
158 | float_error_fn_name = name; \ | |
159 | in_float = 1; errno = 0; (d); in_float = 0; \ | |
160 | switch (errno) { \ | |
161 | case 0: break; \ | |
162 | case EDOM: domain_error (float_error_fn_name, float_error_arg); \ | |
163 | case ERANGE: range_error (float_error_fn_name, float_error_arg); \ | |
164 | default: arith_error (float_error_fn_name, float_error_arg); \ | |
165 | } \ | |
166 | } while (0) | |
167 | #else | |
f8131ed2 | 168 | #define IN_FLOAT(d, name, num) (in_float = 1, (d), in_float = 0) |
4b6baf5f RS |
169 | #define IN_FLOAT2(d, name, num, num2) (in_float = 1, (d), in_float = 0) |
170 | #endif | |
171 | ||
81a63ccc KH |
172 | /* Convert float to Lisp_Int if it fits, else signal a range error |
173 | using the given arguments. */ | |
174 | #define FLOAT_TO_INT(x, i, name, num) \ | |
175 | do \ | |
176 | { \ | |
7936dcdb RS |
177 | if ((x) >= (((EMACS_INT) 1) << (VALBITS-1)) || \ |
178 | (x) <= - (((EMACS_INT) 1) << (VALBITS-1)) - 1) \ | |
81a63ccc | 179 | range_error (name, num); \ |
e0cb2a68 | 180 | XSETINT (i, (EMACS_INT)(x)); \ |
81a63ccc KH |
181 | } \ |
182 | while (0) | |
183 | #define FLOAT_TO_INT2(x, i, name, num1, num2) \ | |
184 | do \ | |
185 | { \ | |
7936dcdb RS |
186 | if ((x) >= (((EMACS_INT) 1) << (VALBITS-1)) || \ |
187 | (x) <= - (((EMACS_INT) 1) << (VALBITS-1)) - 1) \ | |
81a63ccc | 188 | range_error2 (name, num1, num2); \ |
e0cb2a68 | 189 | XSETINT (i, (EMACS_INT)(x)); \ |
81a63ccc KH |
190 | } \ |
191 | while (0) | |
192 | ||
4b6baf5f RS |
193 | #define arith_error(op,arg) \ |
194 | Fsignal (Qarith_error, Fcons (build_string ((op)), Fcons ((arg), Qnil))) | |
195 | #define range_error(op,arg) \ | |
196 | Fsignal (Qrange_error, Fcons (build_string ((op)), Fcons ((arg), Qnil))) | |
81a63ccc KH |
197 | #define range_error2(op,a1,a2) \ |
198 | Fsignal (Qrange_error, Fcons (build_string ((op)), \ | |
199 | Fcons ((a1), Fcons ((a2), Qnil)))) | |
4b6baf5f RS |
200 | #define domain_error(op,arg) \ |
201 | Fsignal (Qdomain_error, Fcons (build_string ((op)), Fcons ((arg), Qnil))) | |
202 | #define domain_error2(op,a1,a2) \ | |
81a63ccc KH |
203 | Fsignal (Qdomain_error, Fcons (build_string ((op)), \ |
204 | Fcons ((a1), Fcons ((a2), Qnil)))) | |
b70021f4 MR |
205 | |
206 | /* Extract a Lisp number as a `double', or signal an error. */ | |
207 | ||
208 | double | |
209 | extract_float (num) | |
210 | Lisp_Object num; | |
211 | { | |
212 | CHECK_NUMBER_OR_FLOAT (num, 0); | |
213 | ||
207a45c1 | 214 | if (FLOATP (num)) |
b70021f4 MR |
215 | return XFLOAT (num)->data; |
216 | return (double) XINT (num); | |
217 | } | |
c2d4ea74 RS |
218 | \f |
219 | /* Trig functions. */ | |
b70021f4 MR |
220 | |
221 | DEFUN ("acos", Facos, Sacos, 1, 1, 0, | |
222 | "Return the inverse cosine of ARG.") | |
4b6baf5f RS |
223 | (arg) |
224 | register Lisp_Object arg; | |
b70021f4 | 225 | { |
4b6baf5f RS |
226 | double d = extract_float (arg); |
227 | #ifdef FLOAT_CHECK_DOMAIN | |
228 | if (d > 1.0 || d < -1.0) | |
229 | domain_error ("acos", arg); | |
230 | #endif | |
231 | IN_FLOAT (d = acos (d), "acos", arg); | |
b70021f4 MR |
232 | return make_float (d); |
233 | } | |
234 | ||
c2d4ea74 RS |
235 | DEFUN ("asin", Fasin, Sasin, 1, 1, 0, |
236 | "Return the inverse sine of ARG.") | |
4b6baf5f RS |
237 | (arg) |
238 | register Lisp_Object arg; | |
b70021f4 | 239 | { |
4b6baf5f RS |
240 | double d = extract_float (arg); |
241 | #ifdef FLOAT_CHECK_DOMAIN | |
242 | if (d > 1.0 || d < -1.0) | |
243 | domain_error ("asin", arg); | |
244 | #endif | |
245 | IN_FLOAT (d = asin (d), "asin", arg); | |
b70021f4 MR |
246 | return make_float (d); |
247 | } | |
248 | ||
c2d4ea74 RS |
249 | DEFUN ("atan", Fatan, Satan, 1, 1, 0, |
250 | "Return the inverse tangent of ARG.") | |
4b6baf5f RS |
251 | (arg) |
252 | register Lisp_Object arg; | |
b70021f4 | 253 | { |
4b6baf5f RS |
254 | double d = extract_float (arg); |
255 | IN_FLOAT (d = atan (d), "atan", arg); | |
b70021f4 MR |
256 | return make_float (d); |
257 | } | |
258 | ||
c2d4ea74 RS |
259 | DEFUN ("cos", Fcos, Scos, 1, 1, 0, |
260 | "Return the cosine of ARG.") | |
4b6baf5f RS |
261 | (arg) |
262 | register Lisp_Object arg; | |
b70021f4 | 263 | { |
4b6baf5f RS |
264 | double d = extract_float (arg); |
265 | IN_FLOAT (d = cos (d), "cos", arg); | |
b70021f4 MR |
266 | return make_float (d); |
267 | } | |
268 | ||
c2d4ea74 RS |
269 | DEFUN ("sin", Fsin, Ssin, 1, 1, 0, |
270 | "Return the sine of ARG.") | |
4b6baf5f RS |
271 | (arg) |
272 | register Lisp_Object arg; | |
b70021f4 | 273 | { |
4b6baf5f RS |
274 | double d = extract_float (arg); |
275 | IN_FLOAT (d = sin (d), "sin", arg); | |
b70021f4 MR |
276 | return make_float (d); |
277 | } | |
278 | ||
c2d4ea74 RS |
279 | DEFUN ("tan", Ftan, Stan, 1, 1, 0, |
280 | "Return the tangent of ARG.") | |
4b6baf5f RS |
281 | (arg) |
282 | register Lisp_Object arg; | |
283 | { | |
284 | double d = extract_float (arg); | |
285 | double c = cos (d); | |
286 | #ifdef FLOAT_CHECK_DOMAIN | |
287 | if (c == 0.0) | |
288 | domain_error ("tan", arg); | |
289 | #endif | |
290 | IN_FLOAT (d = sin (d) / c, "tan", arg); | |
b70021f4 MR |
291 | return make_float (d); |
292 | } | |
293 | \f | |
c2d4ea74 RS |
294 | #if 0 /* Leave these out unless we find there's a reason for them. */ |
295 | ||
b70021f4 MR |
296 | DEFUN ("bessel-j0", Fbessel_j0, Sbessel_j0, 1, 1, 0, |
297 | "Return the bessel function j0 of ARG.") | |
4b6baf5f RS |
298 | (arg) |
299 | register Lisp_Object arg; | |
b70021f4 | 300 | { |
4b6baf5f RS |
301 | double d = extract_float (arg); |
302 | IN_FLOAT (d = j0 (d), "bessel-j0", arg); | |
b70021f4 MR |
303 | return make_float (d); |
304 | } | |
305 | ||
306 | DEFUN ("bessel-j1", Fbessel_j1, Sbessel_j1, 1, 1, 0, | |
307 | "Return the bessel function j1 of ARG.") | |
4b6baf5f RS |
308 | (arg) |
309 | register Lisp_Object arg; | |
b70021f4 | 310 | { |
4b6baf5f RS |
311 | double d = extract_float (arg); |
312 | IN_FLOAT (d = j1 (d), "bessel-j1", arg); | |
b70021f4 MR |
313 | return make_float (d); |
314 | } | |
315 | ||
316 | DEFUN ("bessel-jn", Fbessel_jn, Sbessel_jn, 2, 2, 0, | |
317 | "Return the order N bessel function output jn of ARG.\n\ | |
318 | The first arg (the order) is truncated to an integer.") | |
3e670702 EN |
319 | (n, arg) |
320 | register Lisp_Object n, arg; | |
b70021f4 | 321 | { |
3e670702 EN |
322 | int i1 = extract_float (n); |
323 | double f2 = extract_float (arg); | |
b70021f4 | 324 | |
3e670702 | 325 | IN_FLOAT (f2 = jn (i1, f2), "bessel-jn", n); |
b70021f4 MR |
326 | return make_float (f2); |
327 | } | |
328 | ||
329 | DEFUN ("bessel-y0", Fbessel_y0, Sbessel_y0, 1, 1, 0, | |
330 | "Return the bessel function y0 of ARG.") | |
4b6baf5f RS |
331 | (arg) |
332 | register Lisp_Object arg; | |
b70021f4 | 333 | { |
4b6baf5f RS |
334 | double d = extract_float (arg); |
335 | IN_FLOAT (d = y0 (d), "bessel-y0", arg); | |
b70021f4 MR |
336 | return make_float (d); |
337 | } | |
338 | ||
339 | DEFUN ("bessel-y1", Fbessel_y1, Sbessel_y1, 1, 1, 0, | |
340 | "Return the bessel function y1 of ARG.") | |
4b6baf5f RS |
341 | (arg) |
342 | register Lisp_Object arg; | |
b70021f4 | 343 | { |
4b6baf5f RS |
344 | double d = extract_float (arg); |
345 | IN_FLOAT (d = y1 (d), "bessel-y0", arg); | |
b70021f4 MR |
346 | return make_float (d); |
347 | } | |
348 | ||
349 | DEFUN ("bessel-yn", Fbessel_yn, Sbessel_yn, 2, 2, 0, | |
350 | "Return the order N bessel function output yn of ARG.\n\ | |
351 | The first arg (the order) is truncated to an integer.") | |
3e670702 EN |
352 | (n, arg) |
353 | register Lisp_Object n, arg; | |
b70021f4 | 354 | { |
3e670702 EN |
355 | int i1 = extract_float (n); |
356 | double f2 = extract_float (arg); | |
b70021f4 | 357 | |
3e670702 | 358 | IN_FLOAT (f2 = yn (i1, f2), "bessel-yn", n); |
b70021f4 MR |
359 | return make_float (f2); |
360 | } | |
b70021f4 | 361 | |
c2d4ea74 RS |
362 | #endif |
363 | \f | |
364 | #if 0 /* Leave these out unless we see they are worth having. */ | |
b70021f4 MR |
365 | |
366 | DEFUN ("erf", Ferf, Serf, 1, 1, 0, | |
367 | "Return the mathematical error function of ARG.") | |
4b6baf5f RS |
368 | (arg) |
369 | register Lisp_Object arg; | |
b70021f4 | 370 | { |
4b6baf5f RS |
371 | double d = extract_float (arg); |
372 | IN_FLOAT (d = erf (d), "erf", arg); | |
b70021f4 MR |
373 | return make_float (d); |
374 | } | |
375 | ||
376 | DEFUN ("erfc", Ferfc, Serfc, 1, 1, 0, | |
377 | "Return the complementary error function of ARG.") | |
4b6baf5f RS |
378 | (arg) |
379 | register Lisp_Object arg; | |
b70021f4 | 380 | { |
4b6baf5f RS |
381 | double d = extract_float (arg); |
382 | IN_FLOAT (d = erfc (d), "erfc", arg); | |
b70021f4 MR |
383 | return make_float (d); |
384 | } | |
385 | ||
b70021f4 MR |
386 | DEFUN ("log-gamma", Flog_gamma, Slog_gamma, 1, 1, 0, |
387 | "Return the log gamma of ARG.") | |
4b6baf5f RS |
388 | (arg) |
389 | register Lisp_Object arg; | |
b70021f4 | 390 | { |
4b6baf5f RS |
391 | double d = extract_float (arg); |
392 | IN_FLOAT (d = lgamma (d), "log-gamma", arg); | |
b70021f4 MR |
393 | return make_float (d); |
394 | } | |
395 | ||
4b6baf5f | 396 | DEFUN ("cube-root", Fcube_root, Scube_root, 1, 1, 0, |
c2d4ea74 | 397 | "Return the cube root of ARG.") |
4b6baf5f RS |
398 | (arg) |
399 | register Lisp_Object arg; | |
b70021f4 | 400 | { |
4b6baf5f RS |
401 | double d = extract_float (arg); |
402 | #ifdef HAVE_CBRT | |
403 | IN_FLOAT (d = cbrt (d), "cube-root", arg); | |
404 | #else | |
405 | if (d >= 0.0) | |
406 | IN_FLOAT (d = pow (d, 1.0/3.0), "cube-root", arg); | |
407 | else | |
408 | IN_FLOAT (d = -pow (-d, 1.0/3.0), "cube-root", arg); | |
409 | #endif | |
b70021f4 MR |
410 | return make_float (d); |
411 | } | |
412 | ||
706ac90d RS |
413 | #endif |
414 | \f | |
c2d4ea74 RS |
415 | DEFUN ("exp", Fexp, Sexp, 1, 1, 0, |
416 | "Return the exponential base e of ARG.") | |
4b6baf5f RS |
417 | (arg) |
418 | register Lisp_Object arg; | |
419 | { | |
420 | double d = extract_float (arg); | |
421 | #ifdef FLOAT_CHECK_DOMAIN | |
422 | if (d > 709.7827) /* Assume IEEE doubles here */ | |
423 | range_error ("exp", arg); | |
424 | else if (d < -709.0) | |
425 | return make_float (0.0); | |
426 | else | |
427 | #endif | |
428 | IN_FLOAT (d = exp (d), "exp", arg); | |
b70021f4 MR |
429 | return make_float (d); |
430 | } | |
431 | ||
b70021f4 | 432 | DEFUN ("expt", Fexpt, Sexpt, 2, 2, 0, |
4fd72a6a | 433 | "Return the exponential ARG1 ** ARG2.") |
4b6baf5f RS |
434 | (arg1, arg2) |
435 | register Lisp_Object arg1, arg2; | |
b70021f4 MR |
436 | { |
437 | double f1, f2; | |
438 | ||
4b6baf5f RS |
439 | CHECK_NUMBER_OR_FLOAT (arg1, 0); |
440 | CHECK_NUMBER_OR_FLOAT (arg2, 0); | |
207a45c1 KH |
441 | if (INTEGERP (arg1) /* common lisp spec */ |
442 | && INTEGERP (arg2)) /* don't promote, if both are ints */ | |
b70021f4 | 443 | { /* this can be improved by pre-calculating */ |
9a51b24a | 444 | EMACS_INT acc, x, y; /* some binary powers of x then accumulating */ |
4be1d460 RS |
445 | Lisp_Object val; |
446 | ||
4b6baf5f RS |
447 | x = XINT (arg1); |
448 | y = XINT (arg2); | |
b70021f4 MR |
449 | acc = 1; |
450 | ||
451 | if (y < 0) | |
452 | { | |
4b6baf5f RS |
453 | if (x == 1) |
454 | acc = 1; | |
455 | else if (x == -1) | |
456 | acc = (y & 1) ? -1 : 1; | |
457 | else | |
458 | acc = 0; | |
b70021f4 MR |
459 | } |
460 | else | |
461 | { | |
4b6baf5f RS |
462 | while (y > 0) |
463 | { | |
464 | if (y & 1) | |
465 | acc *= x; | |
466 | x *= x; | |
467 | y = (unsigned)y >> 1; | |
468 | } | |
b70021f4 | 469 | } |
e0cb2a68 | 470 | XSETINT (val, acc); |
4be1d460 | 471 | return val; |
b70021f4 | 472 | } |
207a45c1 KH |
473 | f1 = FLOATP (arg1) ? XFLOAT (arg1)->data : XINT (arg1); |
474 | f2 = FLOATP (arg2) ? XFLOAT (arg2)->data : XINT (arg2); | |
4b6baf5f RS |
475 | /* Really should check for overflow, too */ |
476 | if (f1 == 0.0 && f2 == 0.0) | |
477 | f1 = 1.0; | |
478 | #ifdef FLOAT_CHECK_DOMAIN | |
479 | else if ((f1 == 0.0 && f2 < 0.0) || (f1 < 0 && f2 != floor(f2))) | |
480 | domain_error2 ("expt", arg1, arg2); | |
481 | #endif | |
28d849db | 482 | IN_FLOAT2 (f1 = pow (f1, f2), "expt", arg1, arg2); |
b70021f4 MR |
483 | return make_float (f1); |
484 | } | |
c2d4ea74 | 485 | |
56abb480 | 486 | DEFUN ("log", Flog, Slog, 1, 2, 0, |
4b6baf5f RS |
487 | "Return the natural logarithm of ARG.\n\ |
488 | If second optional argument BASE is given, return log ARG using that base.") | |
489 | (arg, base) | |
490 | register Lisp_Object arg, base; | |
b70021f4 | 491 | { |
4b6baf5f | 492 | double d = extract_float (arg); |
56abb480 | 493 | |
4b6baf5f RS |
494 | #ifdef FLOAT_CHECK_DOMAIN |
495 | if (d <= 0.0) | |
496 | domain_error2 ("log", arg, base); | |
497 | #endif | |
56abb480 | 498 | if (NILP (base)) |
4b6baf5f | 499 | IN_FLOAT (d = log (d), "log", arg); |
56abb480 JB |
500 | else |
501 | { | |
502 | double b = extract_float (base); | |
503 | ||
4b6baf5f RS |
504 | #ifdef FLOAT_CHECK_DOMAIN |
505 | if (b <= 0.0 || b == 1.0) | |
506 | domain_error2 ("log", arg, base); | |
507 | #endif | |
508 | if (b == 10.0) | |
509 | IN_FLOAT2 (d = log10 (d), "log", arg, base); | |
510 | else | |
f8131ed2 | 511 | IN_FLOAT2 (d = log (d) / log (b), "log", arg, base); |
56abb480 | 512 | } |
b70021f4 MR |
513 | return make_float (d); |
514 | } | |
515 | ||
c2d4ea74 RS |
516 | DEFUN ("log10", Flog10, Slog10, 1, 1, 0, |
517 | "Return the logarithm base 10 of ARG.") | |
4b6baf5f RS |
518 | (arg) |
519 | register Lisp_Object arg; | |
b70021f4 | 520 | { |
4b6baf5f RS |
521 | double d = extract_float (arg); |
522 | #ifdef FLOAT_CHECK_DOMAIN | |
523 | if (d <= 0.0) | |
524 | domain_error ("log10", arg); | |
525 | #endif | |
526 | IN_FLOAT (d = log10 (d), "log10", arg); | |
c2d4ea74 RS |
527 | return make_float (d); |
528 | } | |
529 | ||
b70021f4 MR |
530 | DEFUN ("sqrt", Fsqrt, Ssqrt, 1, 1, 0, |
531 | "Return the square root of ARG.") | |
4b6baf5f RS |
532 | (arg) |
533 | register Lisp_Object arg; | |
b70021f4 | 534 | { |
4b6baf5f RS |
535 | double d = extract_float (arg); |
536 | #ifdef FLOAT_CHECK_DOMAIN | |
537 | if (d < 0.0) | |
538 | domain_error ("sqrt", arg); | |
539 | #endif | |
540 | IN_FLOAT (d = sqrt (d), "sqrt", arg); | |
b70021f4 MR |
541 | return make_float (d); |
542 | } | |
c2d4ea74 | 543 | \f |
706ac90d | 544 | #if 0 /* Not clearly worth adding. */ |
b70021f4 | 545 | |
c2d4ea74 RS |
546 | DEFUN ("acosh", Facosh, Sacosh, 1, 1, 0, |
547 | "Return the inverse hyperbolic cosine of ARG.") | |
4b6baf5f RS |
548 | (arg) |
549 | register Lisp_Object arg; | |
b70021f4 | 550 | { |
4b6baf5f RS |
551 | double d = extract_float (arg); |
552 | #ifdef FLOAT_CHECK_DOMAIN | |
553 | if (d < 1.0) | |
554 | domain_error ("acosh", arg); | |
555 | #endif | |
556 | #ifdef HAVE_INVERSE_HYPERBOLIC | |
557 | IN_FLOAT (d = acosh (d), "acosh", arg); | |
558 | #else | |
559 | IN_FLOAT (d = log (d + sqrt (d*d - 1.0)), "acosh", arg); | |
560 | #endif | |
c2d4ea74 RS |
561 | return make_float (d); |
562 | } | |
563 | ||
564 | DEFUN ("asinh", Fasinh, Sasinh, 1, 1, 0, | |
565 | "Return the inverse hyperbolic sine of ARG.") | |
4b6baf5f RS |
566 | (arg) |
567 | register Lisp_Object arg; | |
c2d4ea74 | 568 | { |
4b6baf5f RS |
569 | double d = extract_float (arg); |
570 | #ifdef HAVE_INVERSE_HYPERBOLIC | |
571 | IN_FLOAT (d = asinh (d), "asinh", arg); | |
572 | #else | |
573 | IN_FLOAT (d = log (d + sqrt (d*d + 1.0)), "asinh", arg); | |
574 | #endif | |
c2d4ea74 RS |
575 | return make_float (d); |
576 | } | |
577 | ||
578 | DEFUN ("atanh", Fatanh, Satanh, 1, 1, 0, | |
579 | "Return the inverse hyperbolic tangent of ARG.") | |
4b6baf5f RS |
580 | (arg) |
581 | register Lisp_Object arg; | |
c2d4ea74 | 582 | { |
4b6baf5f RS |
583 | double d = extract_float (arg); |
584 | #ifdef FLOAT_CHECK_DOMAIN | |
585 | if (d >= 1.0 || d <= -1.0) | |
586 | domain_error ("atanh", arg); | |
587 | #endif | |
588 | #ifdef HAVE_INVERSE_HYPERBOLIC | |
589 | IN_FLOAT (d = atanh (d), "atanh", arg); | |
590 | #else | |
591 | IN_FLOAT (d = 0.5 * log ((1.0 + d) / (1.0 - d)), "atanh", arg); | |
592 | #endif | |
c2d4ea74 RS |
593 | return make_float (d); |
594 | } | |
595 | ||
596 | DEFUN ("cosh", Fcosh, Scosh, 1, 1, 0, | |
597 | "Return the hyperbolic cosine of ARG.") | |
4b6baf5f RS |
598 | (arg) |
599 | register Lisp_Object arg; | |
c2d4ea74 | 600 | { |
4b6baf5f RS |
601 | double d = extract_float (arg); |
602 | #ifdef FLOAT_CHECK_DOMAIN | |
603 | if (d > 710.0 || d < -710.0) | |
604 | range_error ("cosh", arg); | |
605 | #endif | |
606 | IN_FLOAT (d = cosh (d), "cosh", arg); | |
c2d4ea74 RS |
607 | return make_float (d); |
608 | } | |
609 | ||
610 | DEFUN ("sinh", Fsinh, Ssinh, 1, 1, 0, | |
611 | "Return the hyperbolic sine of ARG.") | |
4b6baf5f RS |
612 | (arg) |
613 | register Lisp_Object arg; | |
c2d4ea74 | 614 | { |
4b6baf5f RS |
615 | double d = extract_float (arg); |
616 | #ifdef FLOAT_CHECK_DOMAIN | |
617 | if (d > 710.0 || d < -710.0) | |
618 | range_error ("sinh", arg); | |
619 | #endif | |
620 | IN_FLOAT (d = sinh (d), "sinh", arg); | |
b70021f4 MR |
621 | return make_float (d); |
622 | } | |
623 | ||
624 | DEFUN ("tanh", Ftanh, Stanh, 1, 1, 0, | |
625 | "Return the hyperbolic tangent of ARG.") | |
4b6baf5f RS |
626 | (arg) |
627 | register Lisp_Object arg; | |
b70021f4 | 628 | { |
4b6baf5f RS |
629 | double d = extract_float (arg); |
630 | IN_FLOAT (d = tanh (d), "tanh", arg); | |
b70021f4 MR |
631 | return make_float (d); |
632 | } | |
c2d4ea74 | 633 | #endif |
b70021f4 MR |
634 | \f |
635 | DEFUN ("abs", Fabs, Sabs, 1, 1, 0, | |
636 | "Return the absolute value of ARG.") | |
4b6baf5f RS |
637 | (arg) |
638 | register Lisp_Object arg; | |
b70021f4 | 639 | { |
4b6baf5f | 640 | CHECK_NUMBER_OR_FLOAT (arg, 0); |
b70021f4 | 641 | |
207a45c1 | 642 | if (FLOATP (arg)) |
4b6baf5f RS |
643 | IN_FLOAT (arg = make_float (fabs (XFLOAT (arg)->data)), "abs", arg); |
644 | else if (XINT (arg) < 0) | |
db37cb37 | 645 | XSETINT (arg, - XINT (arg)); |
b70021f4 | 646 | |
4b6baf5f | 647 | return arg; |
b70021f4 MR |
648 | } |
649 | ||
650 | DEFUN ("float", Ffloat, Sfloat, 1, 1, 0, | |
651 | "Return the floating point number equal to ARG.") | |
4b6baf5f RS |
652 | (arg) |
653 | register Lisp_Object arg; | |
b70021f4 | 654 | { |
4b6baf5f | 655 | CHECK_NUMBER_OR_FLOAT (arg, 0); |
b70021f4 | 656 | |
207a45c1 | 657 | if (INTEGERP (arg)) |
4b6baf5f | 658 | return make_float ((double) XINT (arg)); |
b70021f4 | 659 | else /* give 'em the same float back */ |
4b6baf5f | 660 | return arg; |
b70021f4 MR |
661 | } |
662 | ||
663 | DEFUN ("logb", Flogb, Slogb, 1, 1, 0, | |
1a3ac8b9 | 664 | "Returns largest integer <= the base 2 log of the magnitude of ARG.\n\ |
b70021f4 | 665 | This is the same as the exponent of a float.") |
4b6baf5f RS |
666 | (arg) |
667 | Lisp_Object arg; | |
b70021f4 | 668 | { |
340176df | 669 | Lisp_Object val; |
a7bf3c54 | 670 | EMACS_INT value; |
5bf54166 | 671 | double f = extract_float (arg); |
340176df | 672 | |
6694b327 KH |
673 | if (f == 0.0) |
674 | value = -(VALMASK >> 1); | |
675 | else | |
676 | { | |
6d3c6adb | 677 | #ifdef HAVE_LOGB |
6694b327 | 678 | IN_FLOAT (value = logb (f), "logb", arg); |
6d3c6adb JB |
679 | #else |
680 | #ifdef HAVE_FREXP | |
c8bf6cf3 KH |
681 | int ivalue; |
682 | IN_FLOAT (frexp (f, &ivalue), "logb", arg); | |
683 | value = ivalue - 1; | |
c26406fe | 684 | #else |
6694b327 KH |
685 | int i; |
686 | double d; | |
687 | if (f < 0.0) | |
688 | f = -f; | |
689 | value = -1; | |
690 | while (f < 0.5) | |
691 | { | |
692 | for (i = 1, d = 0.5; d * d >= f; i += i) | |
693 | d *= d; | |
694 | f /= d; | |
695 | value -= i; | |
696 | } | |
697 | while (f >= 1.0) | |
698 | { | |
699 | for (i = 1, d = 2.0; d * d <= f; i += i) | |
700 | d *= d; | |
701 | f /= d; | |
702 | value += i; | |
703 | } | |
6d3c6adb | 704 | #endif |
340176df | 705 | #endif |
6694b327 | 706 | } |
e0cb2a68 | 707 | XSETINT (val, value); |
c26406fe | 708 | return val; |
b70021f4 MR |
709 | } |
710 | ||
711 | /* the rounding functions */ | |
712 | ||
713 | DEFUN ("ceiling", Fceiling, Sceiling, 1, 1, 0, | |
714 | "Return the smallest integer no less than ARG. (Round toward +inf.)") | |
4b6baf5f RS |
715 | (arg) |
716 | register Lisp_Object arg; | |
b70021f4 | 717 | { |
4b6baf5f | 718 | CHECK_NUMBER_OR_FLOAT (arg, 0); |
b70021f4 | 719 | |
207a45c1 | 720 | if (FLOATP (arg)) |
81a63ccc KH |
721 | { |
722 | double d; | |
723 | ||
724 | IN_FLOAT (d = ceil (XFLOAT (arg)->data), "ceiling", arg); | |
725 | FLOAT_TO_INT (d, arg, "ceiling", arg); | |
726 | } | |
b70021f4 | 727 | |
4b6baf5f | 728 | return arg; |
b70021f4 MR |
729 | } |
730 | ||
fc2157cb PE |
731 | #endif /* LISP_FLOAT_TYPE */ |
732 | ||
733 | ||
734 | DEFUN ("floor", Ffloor, Sfloor, 1, 2, 0, | |
735 | "Return the largest integer no greater than ARG. (Round towards -inf.)\n\ | |
736 | With optional DIVISOR, return the largest integer no greater than ARG/DIVISOR.") | |
737 | (arg, divisor) | |
738 | register Lisp_Object arg, divisor; | |
b70021f4 | 739 | { |
4b6baf5f | 740 | CHECK_NUMBER_OR_FLOAT (arg, 0); |
b70021f4 | 741 | |
fc2157cb PE |
742 | if (! NILP (divisor)) |
743 | { | |
9a51b24a | 744 | EMACS_INT i1, i2; |
fc2157cb PE |
745 | |
746 | CHECK_NUMBER_OR_FLOAT (divisor, 1); | |
747 | ||
748 | #ifdef LISP_FLOAT_TYPE | |
207a45c1 | 749 | if (FLOATP (arg) || FLOATP (divisor)) |
fc2157cb PE |
750 | { |
751 | double f1, f2; | |
752 | ||
207a45c1 KH |
753 | f1 = FLOATP (arg) ? XFLOAT (arg)->data : XINT (arg); |
754 | f2 = (FLOATP (divisor) ? XFLOAT (divisor)->data : XINT (divisor)); | |
fc2157cb PE |
755 | if (f2 == 0) |
756 | Fsignal (Qarith_error, Qnil); | |
757 | ||
81a63ccc KH |
758 | IN_FLOAT2 (f1 = floor (f1 / f2), "floor", arg, divisor); |
759 | FLOAT_TO_INT2 (f1, arg, "floor", arg, divisor); | |
fc2157cb PE |
760 | return arg; |
761 | } | |
762 | #endif | |
763 | ||
764 | i1 = XINT (arg); | |
765 | i2 = XINT (divisor); | |
766 | ||
767 | if (i2 == 0) | |
768 | Fsignal (Qarith_error, Qnil); | |
769 | ||
770 | /* With C's /, the result is implementation-defined if either operand | |
771 | is negative, so use only nonnegative operands. */ | |
772 | i1 = (i2 < 0 | |
773 | ? (i1 <= 0 ? -i1 / -i2 : -1 - ((i1 - 1) / -i2)) | |
774 | : (i1 < 0 ? -1 - ((-1 - i1) / i2) : i1 / i2)); | |
775 | ||
e0cb2a68 | 776 | XSETINT (arg, i1); |
fc2157cb PE |
777 | return arg; |
778 | } | |
779 | ||
780 | #ifdef LISP_FLOAT_TYPE | |
207a45c1 | 781 | if (FLOATP (arg)) |
81a63ccc KH |
782 | { |
783 | double d; | |
784 | IN_FLOAT (d = floor (XFLOAT (arg)->data), "floor", arg); | |
785 | FLOAT_TO_INT (d, arg, "floor", arg); | |
786 | } | |
fc2157cb | 787 | #endif |
b70021f4 | 788 | |
4b6baf5f | 789 | return arg; |
b70021f4 MR |
790 | } |
791 | ||
fc2157cb PE |
792 | #ifdef LISP_FLOAT_TYPE |
793 | ||
b70021f4 MR |
794 | DEFUN ("round", Fround, Sround, 1, 1, 0, |
795 | "Return the nearest integer to ARG.") | |
4b6baf5f RS |
796 | (arg) |
797 | register Lisp_Object arg; | |
b70021f4 | 798 | { |
4b6baf5f | 799 | CHECK_NUMBER_OR_FLOAT (arg, 0); |
b70021f4 | 800 | |
207a45c1 | 801 | if (FLOATP (arg)) |
81a63ccc KH |
802 | { |
803 | double d; | |
804 | ||
805 | /* Screw the prevailing rounding mode. */ | |
806 | IN_FLOAT (d = rint (XFLOAT (arg)->data), "round", arg); | |
807 | FLOAT_TO_INT (d, arg, "round", arg); | |
808 | } | |
b70021f4 | 809 | |
4b6baf5f | 810 | return arg; |
b70021f4 MR |
811 | } |
812 | ||
813 | DEFUN ("truncate", Ftruncate, Struncate, 1, 1, 0, | |
814 | "Truncate a floating point number to an int.\n\ | |
815 | Rounds the value toward zero.") | |
4b6baf5f RS |
816 | (arg) |
817 | register Lisp_Object arg; | |
b70021f4 | 818 | { |
4b6baf5f | 819 | CHECK_NUMBER_OR_FLOAT (arg, 0); |
b70021f4 | 820 | |
207a45c1 | 821 | if (FLOATP (arg)) |
81a63ccc KH |
822 | { |
823 | double d; | |
824 | ||
825 | d = XFLOAT (arg)->data; | |
826 | FLOAT_TO_INT (d, arg, "truncate", arg); | |
827 | } | |
4b6baf5f RS |
828 | |
829 | return arg; | |
830 | } | |
831 | \f | |
4b6baf5f RS |
832 | /* It's not clear these are worth adding. */ |
833 | ||
834 | DEFUN ("fceiling", Ffceiling, Sfceiling, 1, 1, 0, | |
835 | "Return the smallest integer no less than ARG, as a float.\n\ | |
836 | \(Round toward +inf.\)") | |
837 | (arg) | |
838 | register Lisp_Object arg; | |
839 | { | |
840 | double d = extract_float (arg); | |
841 | IN_FLOAT (d = ceil (d), "fceiling", arg); | |
842 | return make_float (d); | |
843 | } | |
844 | ||
845 | DEFUN ("ffloor", Fffloor, Sffloor, 1, 1, 0, | |
846 | "Return the largest integer no greater than ARG, as a float.\n\ | |
847 | \(Round towards -inf.\)") | |
848 | (arg) | |
849 | register Lisp_Object arg; | |
850 | { | |
851 | double d = extract_float (arg); | |
852 | IN_FLOAT (d = floor (d), "ffloor", arg); | |
853 | return make_float (d); | |
854 | } | |
b70021f4 | 855 | |
4b6baf5f RS |
856 | DEFUN ("fround", Ffround, Sfround, 1, 1, 0, |
857 | "Return the nearest integer to ARG, as a float.") | |
858 | (arg) | |
859 | register Lisp_Object arg; | |
860 | { | |
861 | double d = extract_float (arg); | |
892ed7e0 | 862 | IN_FLOAT (d = rint (d), "fround", arg); |
4b6baf5f RS |
863 | return make_float (d); |
864 | } | |
865 | ||
866 | DEFUN ("ftruncate", Fftruncate, Sftruncate, 1, 1, 0, | |
867 | "Truncate a floating point number to an integral float value.\n\ | |
868 | Rounds the value toward zero.") | |
869 | (arg) | |
870 | register Lisp_Object arg; | |
871 | { | |
872 | double d = extract_float (arg); | |
873 | if (d >= 0.0) | |
874 | IN_FLOAT (d = floor (d), "ftruncate", arg); | |
875 | else | |
a3fc5236 | 876 | IN_FLOAT (d = ceil (d), "ftruncate", arg); |
4b6baf5f | 877 | return make_float (d); |
b70021f4 MR |
878 | } |
879 | \f | |
4b6baf5f | 880 | #ifdef FLOAT_CATCH_SIGILL |
4746118a | 881 | static SIGTYPE |
b70021f4 MR |
882 | float_error (signo) |
883 | int signo; | |
884 | { | |
885 | if (! in_float) | |
886 | fatal_error_signal (signo); | |
887 | ||
265a9e55 | 888 | #ifdef BSD |
b70021f4 MR |
889 | #ifdef BSD4_1 |
890 | sigrelse (SIGILL); | |
891 | #else /* not BSD4_1 */ | |
e065a56e | 892 | sigsetmask (SIGEMPTYMASK); |
b70021f4 | 893 | #endif /* not BSD4_1 */ |
265a9e55 JB |
894 | #else |
895 | /* Must reestablish handler each time it is called. */ | |
896 | signal (SIGILL, float_error); | |
897 | #endif /* BSD */ | |
b70021f4 MR |
898 | |
899 | in_float = 0; | |
900 | ||
901 | Fsignal (Qarith_error, Fcons (float_error_arg, Qnil)); | |
902 | } | |
903 | ||
4b6baf5f RS |
904 | /* Another idea was to replace the library function `infnan' |
905 | where SIGILL is signaled. */ | |
906 | ||
907 | #endif /* FLOAT_CATCH_SIGILL */ | |
908 | ||
909 | #ifdef HAVE_MATHERR | |
910 | int | |
911 | matherr (x) | |
912 | struct exception *x; | |
913 | { | |
914 | Lisp_Object args; | |
915 | if (! in_float) | |
916 | /* Not called from emacs-lisp float routines; do the default thing. */ | |
917 | return 0; | |
918 | if (!strcmp (x->name, "pow")) | |
919 | x->name = "expt"; | |
920 | ||
921 | args | |
922 | = Fcons (build_string (x->name), | |
923 | Fcons (make_float (x->arg1), | |
924 | ((!strcmp (x->name, "log") || !strcmp (x->name, "pow")) | |
925 | ? Fcons (make_float (x->arg2), Qnil) | |
926 | : Qnil))); | |
927 | switch (x->type) | |
928 | { | |
929 | case DOMAIN: Fsignal (Qdomain_error, args); break; | |
930 | case SING: Fsignal (Qsingularity_error, args); break; | |
931 | case OVERFLOW: Fsignal (Qoverflow_error, args); break; | |
932 | case UNDERFLOW: Fsignal (Qunderflow_error, args); break; | |
933 | default: Fsignal (Qarith_error, args); break; | |
934 | } | |
935 | return (1); /* don't set errno or print a message */ | |
936 | } | |
937 | #endif /* HAVE_MATHERR */ | |
938 | ||
b70021f4 MR |
939 | init_floatfns () |
940 | { | |
4b6baf5f | 941 | #ifdef FLOAT_CATCH_SIGILL |
b70021f4 | 942 | signal (SIGILL, float_error); |
4b6baf5f | 943 | #endif |
b70021f4 MR |
944 | in_float = 0; |
945 | } | |
946 | ||
fc2157cb PE |
947 | #else /* not LISP_FLOAT_TYPE */ |
948 | ||
949 | init_floatfns () | |
950 | {} | |
951 | ||
952 | #endif /* not LISP_FLOAT_TYPE */ | |
953 | ||
b70021f4 MR |
954 | syms_of_floatfns () |
955 | { | |
fc2157cb | 956 | #ifdef LISP_FLOAT_TYPE |
b70021f4 | 957 | defsubr (&Sacos); |
b70021f4 | 958 | defsubr (&Sasin); |
b70021f4 | 959 | defsubr (&Satan); |
c2d4ea74 RS |
960 | defsubr (&Scos); |
961 | defsubr (&Ssin); | |
962 | defsubr (&Stan); | |
963 | #if 0 | |
964 | defsubr (&Sacosh); | |
965 | defsubr (&Sasinh); | |
b70021f4 | 966 | defsubr (&Satanh); |
c2d4ea74 RS |
967 | defsubr (&Scosh); |
968 | defsubr (&Ssinh); | |
969 | defsubr (&Stanh); | |
b70021f4 MR |
970 | defsubr (&Sbessel_y0); |
971 | defsubr (&Sbessel_y1); | |
972 | defsubr (&Sbessel_yn); | |
973 | defsubr (&Sbessel_j0); | |
974 | defsubr (&Sbessel_j1); | |
975 | defsubr (&Sbessel_jn); | |
b70021f4 MR |
976 | defsubr (&Serf); |
977 | defsubr (&Serfc); | |
c2d4ea74 | 978 | defsubr (&Slog_gamma); |
4b6baf5f | 979 | defsubr (&Scube_root); |
892ed7e0 | 980 | #endif |
4b6baf5f RS |
981 | defsubr (&Sfceiling); |
982 | defsubr (&Sffloor); | |
983 | defsubr (&Sfround); | |
984 | defsubr (&Sftruncate); | |
b70021f4 | 985 | defsubr (&Sexp); |
c2d4ea74 | 986 | defsubr (&Sexpt); |
b70021f4 MR |
987 | defsubr (&Slog); |
988 | defsubr (&Slog10); | |
b70021f4 | 989 | defsubr (&Ssqrt); |
b70021f4 MR |
990 | |
991 | defsubr (&Sabs); | |
992 | defsubr (&Sfloat); | |
993 | defsubr (&Slogb); | |
994 | defsubr (&Sceiling); | |
b70021f4 MR |
995 | defsubr (&Sround); |
996 | defsubr (&Struncate); | |
fc2157cb PE |
997 | #endif /* LISP_FLOAT_TYPE */ |
998 | defsubr (&Sfloor); | |
b70021f4 | 999 | } |