Commit | Line | Data |
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7921925c | 1 | /* Primitive operations on Lisp data types for GNU Emacs Lisp interpreter. |
0220c518 | 2 | Copyright (C) 1985, 86, 88, 93, 94, 95 Free Software Foundation, Inc. |
7921925c JB |
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 | |
8 | the Free Software Foundation; either version 1, or (at your option) | |
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 | ||
21 | #include <signal.h> | |
22 | ||
18160b98 | 23 | #include <config.h> |
7921925c | 24 | #include "lisp.h" |
29eab336 | 25 | #include "puresize.h" |
7921925c JB |
26 | |
27 | #ifndef standalone | |
28 | #include "buffer.h" | |
29 | #endif | |
30 | ||
a44804c2 | 31 | #include "syssignal.h" |
fb8e9847 | 32 | |
aaf45c7b | 33 | #ifdef MSDOS |
6ba93f9d | 34 | /* These are redefined (correctly, but differently) in values.h. */ |
aaf45c7b RS |
35 | #undef INTBITS |
36 | #undef LONGBITS | |
37 | #undef SHORTBITS | |
38 | #endif | |
aaf45c7b | 39 | |
7921925c | 40 | #ifdef LISP_FLOAT_TYPE |
defa77b5 | 41 | |
93b91208 JB |
42 | #ifdef STDC_HEADERS |
43 | #include <stdlib.h> | |
44 | #endif | |
defa77b5 RS |
45 | |
46 | /* Work around a problem that happens because math.h on hpux 7 | |
47 | defines two static variables--which, in Emacs, are not really static, | |
48 | because `static' is defined as nothing. The problem is that they are | |
49 | here, in floatfns.c, and in lread.c. | |
50 | These macros prevent the name conflict. */ | |
51 | #if defined (HPUX) && !defined (HPUX8) | |
52 | #define _MAXLDBL data_c_maxldbl | |
53 | #define _NMAXLDBL data_c_nmaxldbl | |
54 | #endif | |
55 | ||
7921925c JB |
56 | #include <math.h> |
57 | #endif /* LISP_FLOAT_TYPE */ | |
58 | ||
024ec58f BF |
59 | #if !defined (atof) |
60 | extern double atof (); | |
61 | #endif /* !atof */ | |
62 | ||
7921925c JB |
63 | Lisp_Object Qnil, Qt, Qquote, Qlambda, Qsubr, Qunbound; |
64 | Lisp_Object Qerror_conditions, Qerror_message, Qtop_level; | |
65 | Lisp_Object Qerror, Qquit, Qwrong_type_argument, Qargs_out_of_range; | |
ffd56f97 | 66 | Lisp_Object Qvoid_variable, Qvoid_function, Qcyclic_function_indirection; |
7921925c JB |
67 | Lisp_Object Qsetting_constant, Qinvalid_read_syntax; |
68 | Lisp_Object Qinvalid_function, Qwrong_number_of_arguments, Qno_catch; | |
3b8819d6 | 69 | Lisp_Object Qend_of_file, Qarith_error, Qmark_inactive; |
7921925c | 70 | Lisp_Object Qbeginning_of_buffer, Qend_of_buffer, Qbuffer_read_only; |
8e86942b | 71 | Lisp_Object Qintegerp, Qnatnump, Qwholenump, Qsymbolp, Qlistp, Qconsp; |
7921925c JB |
72 | Lisp_Object Qstringp, Qarrayp, Qsequencep, Qbufferp; |
73 | Lisp_Object Qchar_or_string_p, Qmarkerp, Qinteger_or_marker_p, Qvectorp; | |
07bd8472 | 74 | Lisp_Object Qbuffer_or_string_p; |
7921925c | 75 | Lisp_Object Qboundp, Qfboundp; |
39bcc759 | 76 | |
7921925c | 77 | Lisp_Object Qcdr; |
ab297811 | 78 | Lisp_Object Qad_advice_info, Qad_activate; |
7921925c | 79 | |
6315e761 RS |
80 | Lisp_Object Qrange_error, Qdomain_error, Qsingularity_error; |
81 | Lisp_Object Qoverflow_error, Qunderflow_error; | |
82 | ||
7921925c | 83 | #ifdef LISP_FLOAT_TYPE |
464f8898 | 84 | Lisp_Object Qfloatp; |
7921925c JB |
85 | Lisp_Object Qnumberp, Qnumber_or_marker_p; |
86 | #endif | |
87 | ||
39bcc759 RS |
88 | static Lisp_Object Qinteger, Qsymbol, Qstring, Qcons, Qmarker, Qoverlay; |
89 | static Lisp_Object Qfloat, Qwindow_configuration, Qprocess, Qwindow; | |
90 | static Lisp_Object Qcompiled_function, Qbuffer, Qframe, Qvector; | |
91 | ||
7921925c JB |
92 | static Lisp_Object swap_in_symval_forwarding (); |
93 | ||
94 | Lisp_Object | |
95 | wrong_type_argument (predicate, value) | |
96 | register Lisp_Object predicate, value; | |
97 | { | |
98 | register Lisp_Object tem; | |
99 | do | |
100 | { | |
101 | if (!EQ (Vmocklisp_arguments, Qt)) | |
102 | { | |
e9ebc175 | 103 | if (STRINGP (value) && |
7921925c | 104 | (EQ (predicate, Qintegerp) || EQ (predicate, Qinteger_or_marker_p))) |
25e40a4b | 105 | return Fstring_to_number (value); |
e9ebc175 | 106 | if (INTEGERP (value) && EQ (predicate, Qstringp)) |
f2980264 | 107 | return Fnumber_to_string (value); |
7921925c | 108 | } |
e1351ff7 RS |
109 | |
110 | /* If VALUE is not even a valid Lisp object, abort here | |
111 | where we can get a backtrace showing where it came from. */ | |
04be3993 | 112 | if ((unsigned int) XGCTYPE (value) >= Lisp_Type_Limit) |
e1351ff7 RS |
113 | abort (); |
114 | ||
7921925c JB |
115 | value = Fsignal (Qwrong_type_argument, Fcons (predicate, Fcons (value, Qnil))); |
116 | tem = call1 (predicate, value); | |
117 | } | |
a33ef3ab | 118 | while (NILP (tem)); |
7921925c JB |
119 | return value; |
120 | } | |
121 | ||
122 | pure_write_error () | |
123 | { | |
124 | error ("Attempt to modify read-only object"); | |
125 | } | |
126 | ||
127 | void | |
128 | args_out_of_range (a1, a2) | |
129 | Lisp_Object a1, a2; | |
130 | { | |
131 | while (1) | |
132 | Fsignal (Qargs_out_of_range, Fcons (a1, Fcons (a2, Qnil))); | |
133 | } | |
134 | ||
135 | void | |
136 | args_out_of_range_3 (a1, a2, a3) | |
137 | Lisp_Object a1, a2, a3; | |
138 | { | |
139 | while (1) | |
140 | Fsignal (Qargs_out_of_range, Fcons (a1, Fcons (a2, Fcons (a3, Qnil)))); | |
141 | } | |
142 | ||
143 | Lisp_Object | |
144 | make_number (num) | |
145 | int num; | |
146 | { | |
147 | register Lisp_Object val; | |
f187f1f7 | 148 | XSETINT (val, num); |
7921925c JB |
149 | return val; |
150 | } | |
151 | ||
152 | /* On some machines, XINT needs a temporary location. | |
153 | Here it is, in case it is needed. */ | |
154 | ||
155 | int sign_extend_temp; | |
156 | ||
157 | /* On a few machines, XINT can only be done by calling this. */ | |
158 | ||
159 | int | |
160 | sign_extend_lisp_int (num) | |
a0ed95ea | 161 | EMACS_INT num; |
7921925c | 162 | { |
a0ed95ea RS |
163 | if (num & (((EMACS_INT) 1) << (VALBITS - 1))) |
164 | return num | (((EMACS_INT) (-1)) << VALBITS); | |
7921925c | 165 | else |
a0ed95ea | 166 | return num & ((((EMACS_INT) 1) << VALBITS) - 1); |
7921925c JB |
167 | } |
168 | \f | |
169 | /* Data type predicates */ | |
170 | ||
171 | DEFUN ("eq", Feq, Seq, 2, 2, 0, | |
172 | "T if the two args are the same Lisp object.") | |
173 | (obj1, obj2) | |
174 | Lisp_Object obj1, obj2; | |
175 | { | |
176 | if (EQ (obj1, obj2)) | |
177 | return Qt; | |
178 | return Qnil; | |
179 | } | |
180 | ||
181 | DEFUN ("null", Fnull, Snull, 1, 1, 0, "T if OBJECT is nil.") | |
39bcc759 RS |
182 | (object) |
183 | Lisp_Object object; | |
7921925c | 184 | { |
39bcc759 | 185 | if (NILP (object)) |
7921925c JB |
186 | return Qt; |
187 | return Qnil; | |
188 | } | |
189 | ||
39bcc759 RS |
190 | DEFUN ("type-of", Ftype_of, Stype_of, 1, 1, 0, |
191 | "Return a symbol representing the type of OBJECT.\n\ | |
192 | The symbol returned names the object's basic type;\n\ | |
193 | for example, (type-of 1) returns `integer'.") | |
194 | (object) | |
195 | Lisp_Object object; | |
196 | { | |
197 | switch (XGCTYPE (object)) | |
198 | { | |
199 | case Lisp_Int: | |
200 | return Qinteger; | |
201 | ||
202 | case Lisp_Symbol: | |
203 | return Qsymbol; | |
204 | ||
205 | case Lisp_String: | |
206 | return Qstring; | |
207 | ||
208 | case Lisp_Cons: | |
209 | return Qcons; | |
210 | ||
211 | case Lisp_Misc: | |
212 | switch (XMISC (object)->type) | |
213 | { | |
214 | case Lisp_Misc_Marker: | |
215 | return Qmarker; | |
216 | case Lisp_Misc_Overlay: | |
217 | return Qoverlay; | |
218 | case Lisp_Misc_Float: | |
219 | return Qfloat; | |
220 | } | |
221 | abort (); | |
222 | ||
223 | case Lisp_Vectorlike: | |
224 | if (GC_WINDOW_CONFIGURATIONP (object)) | |
225 | return Qwindow_configuration; | |
226 | if (GC_PROCESSP (object)) | |
227 | return Qprocess; | |
228 | if (GC_WINDOWP (object)) | |
229 | return Qwindow; | |
230 | if (GC_SUBRP (object)) | |
231 | return Qsubr; | |
232 | if (GC_COMPILEDP (object)) | |
233 | return Qcompiled_function; | |
234 | if (GC_BUFFERP (object)) | |
235 | return Qbuffer; | |
236 | ||
237 | #ifdef MULTI_FRAME | |
238 | if (GC_FRAMEP (object)) | |
239 | return Qframe; | |
240 | #endif | |
241 | return Qvector; | |
242 | ||
243 | #ifdef LISP_FLOAT_TYPE | |
244 | case Lisp_Float: | |
245 | return Qfloat; | |
246 | #endif | |
247 | ||
248 | default: | |
249 | abort (); | |
250 | } | |
251 | } | |
252 | ||
7921925c | 253 | DEFUN ("consp", Fconsp, Sconsp, 1, 1, 0, "T if OBJECT is a cons cell.") |
39bcc759 RS |
254 | (object) |
255 | Lisp_Object object; | |
7921925c | 256 | { |
39bcc759 | 257 | if (CONSP (object)) |
7921925c JB |
258 | return Qt; |
259 | return Qnil; | |
260 | } | |
261 | ||
262 | DEFUN ("atom", Fatom, Satom, 1, 1, 0, "T if OBJECT is not a cons cell. This includes nil.") | |
39bcc759 RS |
263 | (object) |
264 | Lisp_Object object; | |
7921925c | 265 | { |
39bcc759 | 266 | if (CONSP (object)) |
7921925c JB |
267 | return Qnil; |
268 | return Qt; | |
269 | } | |
270 | ||
271 | DEFUN ("listp", Flistp, Slistp, 1, 1, 0, "T if OBJECT is a list. This includes nil.") | |
39bcc759 RS |
272 | (object) |
273 | Lisp_Object object; | |
7921925c | 274 | { |
39bcc759 | 275 | if (CONSP (object) || NILP (object)) |
7921925c JB |
276 | return Qt; |
277 | return Qnil; | |
278 | } | |
279 | ||
280 | DEFUN ("nlistp", Fnlistp, Snlistp, 1, 1, 0, "T if OBJECT is not a list. Lists include nil.") | |
39bcc759 RS |
281 | (object) |
282 | Lisp_Object object; | |
7921925c | 283 | { |
39bcc759 | 284 | if (CONSP (object) || NILP (object)) |
7921925c JB |
285 | return Qnil; |
286 | return Qt; | |
287 | } | |
288 | \f | |
289 | DEFUN ("symbolp", Fsymbolp, Ssymbolp, 1, 1, 0, "T if OBJECT is a symbol.") | |
39bcc759 RS |
290 | (object) |
291 | Lisp_Object object; | |
7921925c | 292 | { |
39bcc759 | 293 | if (SYMBOLP (object)) |
7921925c JB |
294 | return Qt; |
295 | return Qnil; | |
296 | } | |
297 | ||
298 | DEFUN ("vectorp", Fvectorp, Svectorp, 1, 1, 0, "T if OBJECT is a vector.") | |
39bcc759 RS |
299 | (object) |
300 | Lisp_Object object; | |
7921925c | 301 | { |
39bcc759 | 302 | if (VECTORP (object)) |
7921925c JB |
303 | return Qt; |
304 | return Qnil; | |
305 | } | |
306 | ||
307 | DEFUN ("stringp", Fstringp, Sstringp, 1, 1, 0, "T if OBJECT is a string.") | |
39bcc759 RS |
308 | (object) |
309 | Lisp_Object object; | |
7921925c | 310 | { |
39bcc759 | 311 | if (STRINGP (object)) |
7921925c JB |
312 | return Qt; |
313 | return Qnil; | |
314 | } | |
315 | ||
316 | DEFUN ("arrayp", Farrayp, Sarrayp, 1, 1, 0, "T if OBJECT is an array (string or vector).") | |
39bcc759 RS |
317 | (object) |
318 | Lisp_Object object; | |
7921925c | 319 | { |
39bcc759 | 320 | if (VECTORP (object) || STRINGP (object)) |
7921925c JB |
321 | return Qt; |
322 | return Qnil; | |
323 | } | |
324 | ||
325 | DEFUN ("sequencep", Fsequencep, Ssequencep, 1, 1, 0, | |
326 | "T if OBJECT is a sequence (list or array).") | |
39bcc759 RS |
327 | (object) |
328 | register Lisp_Object object; | |
7921925c | 329 | { |
39bcc759 | 330 | if (CONSP (object) || NILP (object) || VECTORP (object) || STRINGP (object)) |
7921925c JB |
331 | return Qt; |
332 | return Qnil; | |
333 | } | |
334 | ||
335 | DEFUN ("bufferp", Fbufferp, Sbufferp, 1, 1, 0, "T if OBJECT is an editor buffer.") | |
39bcc759 RS |
336 | (object) |
337 | Lisp_Object object; | |
7921925c | 338 | { |
39bcc759 | 339 | if (BUFFERP (object)) |
7921925c JB |
340 | return Qt; |
341 | return Qnil; | |
342 | } | |
343 | ||
344 | DEFUN ("markerp", Fmarkerp, Smarkerp, 1, 1, 0, "T if OBJECT is a marker (editor pointer).") | |
39bcc759 RS |
345 | (object) |
346 | Lisp_Object object; | |
7921925c | 347 | { |
39bcc759 | 348 | if (MARKERP (object)) |
7921925c JB |
349 | return Qt; |
350 | return Qnil; | |
351 | } | |
352 | ||
7921925c | 353 | DEFUN ("subrp", Fsubrp, Ssubrp, 1, 1, 0, "T if OBJECT is a built-in function.") |
39bcc759 RS |
354 | (object) |
355 | Lisp_Object object; | |
7921925c | 356 | { |
39bcc759 | 357 | if (SUBRP (object)) |
7921925c JB |
358 | return Qt; |
359 | return Qnil; | |
360 | } | |
361 | ||
dbc4e1c1 JB |
362 | DEFUN ("byte-code-function-p", Fbyte_code_function_p, Sbyte_code_function_p, |
363 | 1, 1, 0, "T if OBJECT is a byte-compiled function object.") | |
39bcc759 RS |
364 | (object) |
365 | Lisp_Object object; | |
7921925c | 366 | { |
39bcc759 | 367 | if (COMPILEDP (object)) |
7921925c JB |
368 | return Qt; |
369 | return Qnil; | |
370 | } | |
371 | ||
0321d75c KH |
372 | DEFUN ("char-or-string-p", Fchar_or_string_p, Schar_or_string_p, 1, 1, 0, |
373 | "T if OBJECT is a character (an integer) or a string.") | |
39bcc759 RS |
374 | (object) |
375 | register Lisp_Object object; | |
7921925c | 376 | { |
39bcc759 | 377 | if (INTEGERP (object) || STRINGP (object)) |
7921925c JB |
378 | return Qt; |
379 | return Qnil; | |
380 | } | |
381 | \f | |
0321d75c | 382 | DEFUN ("integerp", Fintegerp, Sintegerp, 1, 1, 0, "T if OBJECT is an integer.") |
39bcc759 RS |
383 | (object) |
384 | Lisp_Object object; | |
7921925c | 385 | { |
39bcc759 | 386 | if (INTEGERP (object)) |
7921925c JB |
387 | return Qt; |
388 | return Qnil; | |
389 | } | |
390 | ||
464f8898 RS |
391 | DEFUN ("integer-or-marker-p", Finteger_or_marker_p, Sinteger_or_marker_p, 1, 1, 0, |
392 | "T if OBJECT is an integer or a marker (editor pointer).") | |
39bcc759 RS |
393 | (object) |
394 | register Lisp_Object object; | |
7921925c | 395 | { |
39bcc759 | 396 | if (MARKERP (object) || INTEGERP (object)) |
7921925c JB |
397 | return Qt; |
398 | return Qnil; | |
399 | } | |
400 | ||
0321d75c KH |
401 | DEFUN ("natnump", Fnatnump, Snatnump, 1, 1, 0, |
402 | "T if OBJECT is a nonnegative integer.") | |
39bcc759 RS |
403 | (object) |
404 | Lisp_Object object; | |
7921925c | 405 | { |
39bcc759 | 406 | if (NATNUMP (object)) |
7921925c JB |
407 | return Qt; |
408 | return Qnil; | |
409 | } | |
410 | ||
411 | DEFUN ("numberp", Fnumberp, Snumberp, 1, 1, 0, | |
412 | "T if OBJECT is a number (floating point or integer).") | |
39bcc759 RS |
413 | (object) |
414 | Lisp_Object object; | |
7921925c | 415 | { |
39bcc759 | 416 | if (NUMBERP (object)) |
7921925c | 417 | return Qt; |
dbc4e1c1 JB |
418 | else |
419 | return Qnil; | |
7921925c JB |
420 | } |
421 | ||
422 | DEFUN ("number-or-marker-p", Fnumber_or_marker_p, | |
423 | Snumber_or_marker_p, 1, 1, 0, | |
424 | "T if OBJECT is a number or a marker.") | |
39bcc759 RS |
425 | (object) |
426 | Lisp_Object object; | |
7921925c | 427 | { |
39bcc759 | 428 | if (NUMBERP (object) || MARKERP (object)) |
7921925c JB |
429 | return Qt; |
430 | return Qnil; | |
431 | } | |
464f8898 RS |
432 | |
433 | #ifdef LISP_FLOAT_TYPE | |
434 | DEFUN ("floatp", Ffloatp, Sfloatp, 1, 1, 0, | |
435 | "T if OBJECT is a floating point number.") | |
39bcc759 RS |
436 | (object) |
437 | Lisp_Object object; | |
464f8898 | 438 | { |
39bcc759 | 439 | if (FLOATP (object)) |
464f8898 RS |
440 | return Qt; |
441 | return Qnil; | |
442 | } | |
7921925c JB |
443 | #endif /* LISP_FLOAT_TYPE */ |
444 | \f | |
445 | /* Extract and set components of lists */ | |
446 | ||
447 | DEFUN ("car", Fcar, Scar, 1, 1, 0, | |
448 | "Return the car of CONSCELL. If arg is nil, return nil.\n\ | |
449 | Error if arg is not nil and not a cons cell. See also `car-safe'.") | |
450 | (list) | |
451 | register Lisp_Object list; | |
452 | { | |
453 | while (1) | |
454 | { | |
e9ebc175 | 455 | if (CONSP (list)) |
7921925c JB |
456 | return XCONS (list)->car; |
457 | else if (EQ (list, Qnil)) | |
458 | return Qnil; | |
459 | else | |
460 | list = wrong_type_argument (Qlistp, list); | |
461 | } | |
462 | } | |
463 | ||
464 | DEFUN ("car-safe", Fcar_safe, Scar_safe, 1, 1, 0, | |
465 | "Return the car of OBJECT if it is a cons cell, or else nil.") | |
466 | (object) | |
467 | Lisp_Object object; | |
468 | { | |
e9ebc175 | 469 | if (CONSP (object)) |
7921925c JB |
470 | return XCONS (object)->car; |
471 | else | |
472 | return Qnil; | |
473 | } | |
474 | ||
475 | DEFUN ("cdr", Fcdr, Scdr, 1, 1, 0, | |
476 | "Return the cdr of CONSCELL. If arg is nil, return nil.\n\ | |
477 | Error if arg is not nil and not a cons cell. See also `cdr-safe'.") | |
478 | ||
479 | (list) | |
480 | register Lisp_Object list; | |
481 | { | |
482 | while (1) | |
483 | { | |
e9ebc175 | 484 | if (CONSP (list)) |
7921925c JB |
485 | return XCONS (list)->cdr; |
486 | else if (EQ (list, Qnil)) | |
487 | return Qnil; | |
488 | else | |
489 | list = wrong_type_argument (Qlistp, list); | |
490 | } | |
491 | } | |
492 | ||
493 | DEFUN ("cdr-safe", Fcdr_safe, Scdr_safe, 1, 1, 0, | |
b7abc8fa | 494 | "Return the cdr of OBJECT if it is a cons cell, or else nil.") |
7921925c JB |
495 | (object) |
496 | Lisp_Object object; | |
497 | { | |
e9ebc175 | 498 | if (CONSP (object)) |
7921925c JB |
499 | return XCONS (object)->cdr; |
500 | else | |
501 | return Qnil; | |
502 | } | |
503 | ||
504 | DEFUN ("setcar", Fsetcar, Ssetcar, 2, 2, 0, | |
505 | "Set the car of CONSCELL to be NEWCAR. Returns NEWCAR.") | |
506 | (cell, newcar) | |
507 | register Lisp_Object cell, newcar; | |
508 | { | |
e9ebc175 | 509 | if (!CONSP (cell)) |
7921925c JB |
510 | cell = wrong_type_argument (Qconsp, cell); |
511 | ||
512 | CHECK_IMPURE (cell); | |
513 | XCONS (cell)->car = newcar; | |
514 | return newcar; | |
515 | } | |
516 | ||
517 | DEFUN ("setcdr", Fsetcdr, Ssetcdr, 2, 2, 0, | |
518 | "Set the cdr of CONSCELL to be NEWCDR. Returns NEWCDR.") | |
519 | (cell, newcdr) | |
520 | register Lisp_Object cell, newcdr; | |
521 | { | |
e9ebc175 | 522 | if (!CONSP (cell)) |
7921925c JB |
523 | cell = wrong_type_argument (Qconsp, cell); |
524 | ||
525 | CHECK_IMPURE (cell); | |
526 | XCONS (cell)->cdr = newcdr; | |
527 | return newcdr; | |
528 | } | |
529 | \f | |
530 | /* Extract and set components of symbols */ | |
531 | ||
532 | DEFUN ("boundp", Fboundp, Sboundp, 1, 1, 0, "T if SYMBOL's value is not void.") | |
533 | (sym) | |
534 | register Lisp_Object sym; | |
535 | { | |
536 | Lisp_Object valcontents; | |
537 | CHECK_SYMBOL (sym, 0); | |
538 | ||
539 | valcontents = XSYMBOL (sym)->value; | |
540 | ||
aabf6bec KH |
541 | if (BUFFER_LOCAL_VALUEP (valcontents) |
542 | || SOME_BUFFER_LOCAL_VALUEP (valcontents)) | |
536b772a | 543 | valcontents = swap_in_symval_forwarding (sym, valcontents); |
7921925c | 544 | |
1bfcade3 | 545 | return (EQ (valcontents, Qunbound) ? Qnil : Qt); |
7921925c JB |
546 | } |
547 | ||
548 | DEFUN ("fboundp", Ffboundp, Sfboundp, 1, 1, 0, "T if SYMBOL's function definition is not void.") | |
549 | (sym) | |
550 | register Lisp_Object sym; | |
551 | { | |
552 | CHECK_SYMBOL (sym, 0); | |
1bfcade3 | 553 | return (EQ (XSYMBOL (sym)->function, Qunbound) ? Qnil : Qt); |
7921925c JB |
554 | } |
555 | ||
556 | DEFUN ("makunbound", Fmakunbound, Smakunbound, 1, 1, 0, "Make SYMBOL's value be void.") | |
557 | (sym) | |
558 | register Lisp_Object sym; | |
559 | { | |
560 | CHECK_SYMBOL (sym, 0); | |
a33ef3ab | 561 | if (NILP (sym) || EQ (sym, Qt)) |
7921925c JB |
562 | return Fsignal (Qsetting_constant, Fcons (sym, Qnil)); |
563 | Fset (sym, Qunbound); | |
564 | return sym; | |
565 | } | |
566 | ||
567 | DEFUN ("fmakunbound", Ffmakunbound, Sfmakunbound, 1, 1, 0, "Make SYMBOL's function definition be void.") | |
568 | (sym) | |
569 | register Lisp_Object sym; | |
570 | { | |
571 | CHECK_SYMBOL (sym, 0); | |
c15c5d40 KH |
572 | if (NILP (sym) || EQ (sym, Qt)) |
573 | return Fsignal (Qsetting_constant, Fcons (sym, Qnil)); | |
7921925c JB |
574 | XSYMBOL (sym)->function = Qunbound; |
575 | return sym; | |
576 | } | |
577 | ||
578 | DEFUN ("symbol-function", Fsymbol_function, Ssymbol_function, 1, 1, 0, | |
579 | "Return SYMBOL's function definition. Error if that is void.") | |
ffd56f97 JB |
580 | (symbol) |
581 | register Lisp_Object symbol; | |
7921925c | 582 | { |
ffd56f97 JB |
583 | CHECK_SYMBOL (symbol, 0); |
584 | if (EQ (XSYMBOL (symbol)->function, Qunbound)) | |
585 | return Fsignal (Qvoid_function, Fcons (symbol, Qnil)); | |
586 | return XSYMBOL (symbol)->function; | |
7921925c JB |
587 | } |
588 | ||
589 | DEFUN ("symbol-plist", Fsymbol_plist, Ssymbol_plist, 1, 1, 0, "Return SYMBOL's property list.") | |
590 | (sym) | |
591 | register Lisp_Object sym; | |
592 | { | |
593 | CHECK_SYMBOL (sym, 0); | |
594 | return XSYMBOL (sym)->plist; | |
595 | } | |
596 | ||
597 | DEFUN ("symbol-name", Fsymbol_name, Ssymbol_name, 1, 1, 0, "Return SYMBOL's name, a string.") | |
598 | (sym) | |
599 | register Lisp_Object sym; | |
600 | { | |
601 | register Lisp_Object name; | |
602 | ||
603 | CHECK_SYMBOL (sym, 0); | |
f187f1f7 | 604 | XSETSTRING (name, XSYMBOL (sym)->name); |
7921925c JB |
605 | return name; |
606 | } | |
607 | ||
608 | DEFUN ("fset", Ffset, Sfset, 2, 2, 0, | |
609 | "Set SYMBOL's function definition to NEWVAL, and return NEWVAL.") | |
610 | (sym, newdef) | |
611 | register Lisp_Object sym, newdef; | |
612 | { | |
613 | CHECK_SYMBOL (sym, 0); | |
c15c5d40 KH |
614 | if (NILP (sym) || EQ (sym, Qt)) |
615 | return Fsignal (Qsetting_constant, Fcons (sym, Qnil)); | |
a33ef3ab | 616 | if (!NILP (Vautoload_queue) && !EQ (XSYMBOL (sym)->function, Qunbound)) |
7921925c JB |
617 | Vautoload_queue = Fcons (Fcons (sym, XSYMBOL (sym)->function), |
618 | Vautoload_queue); | |
619 | XSYMBOL (sym)->function = newdef; | |
f845f2c9 | 620 | /* Handle automatic advice activation */ |
ab297811 | 621 | if (CONSP (XSYMBOL (sym)->plist) && !NILP (Fget (sym, Qad_advice_info))) |
f845f2c9 | 622 | { |
ab297811 | 623 | call2 (Qad_activate, sym, Qnil); |
f845f2c9 RS |
624 | newdef = XSYMBOL (sym)->function; |
625 | } | |
7921925c JB |
626 | return newdef; |
627 | } | |
628 | ||
d9bcdb34 RS |
629 | /* This name should be removed once it is eliminated from elsewhere. */ |
630 | ||
80df38a2 | 631 | DEFUN ("defalias", Fdefalias, Sdefalias, 2, 2, 0, |
fc08c367 RS |
632 | "Set SYMBOL's function definition to NEWVAL, and return NEWVAL.\n\ |
633 | Associates the function with the current load file, if any.") | |
634 | (sym, newdef) | |
635 | register Lisp_Object sym, newdef; | |
636 | { | |
637 | CHECK_SYMBOL (sym, 0); | |
638 | if (!NILP (Vautoload_queue) && !EQ (XSYMBOL (sym)->function, Qunbound)) | |
639 | Vautoload_queue = Fcons (Fcons (sym, XSYMBOL (sym)->function), | |
640 | Vautoload_queue); | |
641 | XSYMBOL (sym)->function = newdef; | |
ab297811 RS |
642 | /* Handle automatic advice activation */ |
643 | if (CONSP (XSYMBOL (sym)->plist) && !NILP (Fget (sym, Qad_advice_info))) | |
644 | { | |
645 | call2 (Qad_activate, sym, Qnil); | |
646 | newdef = XSYMBOL (sym)->function; | |
647 | } | |
fc08c367 RS |
648 | LOADHIST_ATTACH (sym); |
649 | return newdef; | |
650 | } | |
651 | ||
d9bcdb34 RS |
652 | DEFUN ("define-function", Fdefine_function, Sdefine_function, 2, 2, 0, |
653 | "Set SYMBOL's function definition to NEWVAL, and return NEWVAL.\n\ | |
654 | Associates the function with the current load file, if any.") | |
655 | (sym, newdef) | |
656 | register Lisp_Object sym, newdef; | |
657 | { | |
658 | CHECK_SYMBOL (sym, 0); | |
659 | if (!NILP (Vautoload_queue) && !EQ (XSYMBOL (sym)->function, Qunbound)) | |
660 | Vautoload_queue = Fcons (Fcons (sym, XSYMBOL (sym)->function), | |
661 | Vautoload_queue); | |
662 | XSYMBOL (sym)->function = newdef; | |
ab297811 RS |
663 | /* Handle automatic advice activation */ |
664 | if (CONSP (XSYMBOL (sym)->plist) && !NILP (Fget (sym, Qad_advice_info))) | |
665 | { | |
666 | call2 (Qad_activate, sym, Qnil); | |
667 | newdef = XSYMBOL (sym)->function; | |
668 | } | |
d9bcdb34 RS |
669 | LOADHIST_ATTACH (sym); |
670 | return newdef; | |
671 | } | |
672 | ||
7921925c JB |
673 | DEFUN ("setplist", Fsetplist, Ssetplist, 2, 2, 0, |
674 | "Set SYMBOL's property list to NEWVAL, and return NEWVAL.") | |
675 | (sym, newplist) | |
676 | register Lisp_Object sym, newplist; | |
677 | { | |
678 | CHECK_SYMBOL (sym, 0); | |
679 | XSYMBOL (sym)->plist = newplist; | |
680 | return newplist; | |
681 | } | |
ffd56f97 | 682 | |
7921925c JB |
683 | \f |
684 | /* Getting and setting values of symbols */ | |
685 | ||
686 | /* Given the raw contents of a symbol value cell, | |
687 | return the Lisp value of the symbol. | |
688 | This does not handle buffer-local variables; use | |
689 | swap_in_symval_forwarding for that. */ | |
690 | ||
691 | Lisp_Object | |
692 | do_symval_forwarding (valcontents) | |
693 | register Lisp_Object valcontents; | |
694 | { | |
695 | register Lisp_Object val; | |
46b2ac21 KH |
696 | int offset; |
697 | if (MISCP (valcontents)) | |
698 | switch (XMISC (valcontents)->type) | |
699 | { | |
700 | case Lisp_Misc_Intfwd: | |
701 | XSETINT (val, *XINTFWD (valcontents)->intvar); | |
702 | return val; | |
7921925c | 703 | |
46b2ac21 KH |
704 | case Lisp_Misc_Boolfwd: |
705 | return (*XBOOLFWD (valcontents)->boolvar ? Qt : Qnil); | |
7921925c | 706 | |
46b2ac21 KH |
707 | case Lisp_Misc_Objfwd: |
708 | return *XOBJFWD (valcontents)->objvar; | |
7921925c | 709 | |
46b2ac21 KH |
710 | case Lisp_Misc_Buffer_Objfwd: |
711 | offset = XBUFFER_OBJFWD (valcontents)->offset; | |
712 | return *(Lisp_Object *)(offset + (char *)current_buffer); | |
7403b5c8 KH |
713 | |
714 | case Lisp_Misc_Display_Objfwd: | |
31c45e79 KH |
715 | if (!current_perdisplay) |
716 | abort (); | |
7403b5c8 | 717 | offset = XDISPLAY_OBJFWD (valcontents)->offset; |
31c45e79 | 718 | return *(Lisp_Object *)(offset + (char *)current_perdisplay); |
46b2ac21 | 719 | } |
7921925c JB |
720 | return valcontents; |
721 | } | |
722 | ||
723 | /* Store NEWVAL into SYM, where VALCONTENTS is found in the value cell | |
724 | of SYM. If SYM is buffer-local, VALCONTENTS should be the | |
725 | buffer-independent contents of the value cell: forwarded just one | |
726 | step past the buffer-localness. */ | |
727 | ||
728 | void | |
729 | store_symval_forwarding (sym, valcontents, newval) | |
730 | Lisp_Object sym; | |
731 | register Lisp_Object valcontents, newval; | |
732 | { | |
0220c518 | 733 | switch (SWITCH_ENUM_CAST (XTYPE (valcontents))) |
7921925c | 734 | { |
46b2ac21 KH |
735 | case Lisp_Misc: |
736 | switch (XMISC (valcontents)->type) | |
737 | { | |
738 | case Lisp_Misc_Intfwd: | |
739 | CHECK_NUMBER (newval, 1); | |
740 | *XINTFWD (valcontents)->intvar = XINT (newval); | |
741 | break; | |
742 | ||
743 | case Lisp_Misc_Boolfwd: | |
744 | *XBOOLFWD (valcontents)->boolvar = NILP (newval) ? 0 : 1; | |
745 | break; | |
746 | ||
747 | case Lisp_Misc_Objfwd: | |
748 | *XOBJFWD (valcontents)->objvar = newval; | |
749 | break; | |
750 | ||
751 | case Lisp_Misc_Buffer_Objfwd: | |
752 | { | |
753 | int offset = XBUFFER_OBJFWD (valcontents)->offset; | |
754 | Lisp_Object type; | |
755 | ||
756 | type = *(Lisp_Object *)(offset + (char *)&buffer_local_types); | |
757 | if (! NILP (type) && ! NILP (newval) | |
758 | && XTYPE (newval) != XINT (type)) | |
759 | buffer_slot_type_mismatch (offset); | |
760 | ||
761 | *(Lisp_Object *)(offset + (char *)current_buffer) = newval; | |
46b2ac21 | 762 | } |
7403b5c8 KH |
763 | break; |
764 | ||
765 | case Lisp_Misc_Display_Objfwd: | |
31c45e79 KH |
766 | if (!current_perdisplay) |
767 | abort (); | |
768 | (*(Lisp_Object *)((char *)current_perdisplay | |
7403b5c8 KH |
769 | + XDISPLAY_OBJFWD (valcontents)->offset)) |
770 | = newval; | |
771 | break; | |
772 | ||
46b2ac21 KH |
773 | default: |
774 | goto def; | |
775 | } | |
7921925c JB |
776 | break; |
777 | ||
7921925c | 778 | default: |
46b2ac21 | 779 | def: |
7921925c | 780 | valcontents = XSYMBOL (sym)->value; |
e9ebc175 KH |
781 | if (BUFFER_LOCAL_VALUEP (valcontents) |
782 | || SOME_BUFFER_LOCAL_VALUEP (valcontents)) | |
8d4afcac | 783 | XBUFFER_LOCAL_VALUE (valcontents)->car = newval; |
7921925c JB |
784 | else |
785 | XSYMBOL (sym)->value = newval; | |
786 | } | |
787 | } | |
788 | ||
789 | /* Set up the buffer-local symbol SYM for validity in the current | |
790 | buffer. VALCONTENTS is the contents of its value cell. | |
791 | Return the value forwarded one step past the buffer-local indicator. */ | |
792 | ||
793 | static Lisp_Object | |
794 | swap_in_symval_forwarding (sym, valcontents) | |
795 | Lisp_Object sym, valcontents; | |
796 | { | |
7403b5c8 | 797 | /* valcontents is a pointer to a struct resembling the cons |
7921925c | 798 | (REALVALUE BUFFER CURRENT-ALIST-ELEMENT . DEFAULT-VALUE)). |
7403b5c8 | 799 | |
7921925c | 800 | CURRENT-ALIST-ELEMENT is a pointer to an element of BUFFER's |
533984a8 JB |
801 | local_var_alist, that being the element whose car is this |
802 | variable. Or it can be a pointer to the | |
803 | (CURRENT-ALIST-ELEMENT . DEFAULT-VALUE), if BUFFER does not have | |
804 | an element in its alist for this variable. | |
805 | ||
806 | If the current buffer is not BUFFER, we store the current | |
807 | REALVALUE value into CURRENT-ALIST-ELEMENT, then find the | |
808 | appropriate alist element for the buffer now current and set up | |
809 | CURRENT-ALIST-ELEMENT. Then we set REALVALUE out of that | |
810 | element, and store into BUFFER. | |
811 | ||
7921925c JB |
812 | Note that REALVALUE can be a forwarding pointer. */ |
813 | ||
814 | register Lisp_Object tem1; | |
8d4afcac | 815 | tem1 = XCONS (XBUFFER_LOCAL_VALUE (valcontents)->cdr)->car; |
7921925c | 816 | |
a33ef3ab | 817 | if (NILP (tem1) || current_buffer != XBUFFER (tem1)) |
7921925c | 818 | { |
8d4afcac KH |
819 | tem1 = XCONS (XCONS (XBUFFER_LOCAL_VALUE (valcontents)->cdr)->cdr)->car; |
820 | Fsetcdr (tem1, | |
821 | do_symval_forwarding (XBUFFER_LOCAL_VALUE (valcontents)->car)); | |
7921925c | 822 | tem1 = assq_no_quit (sym, current_buffer->local_var_alist); |
a33ef3ab | 823 | if (NILP (tem1)) |
8d4afcac KH |
824 | tem1 = XCONS (XBUFFER_LOCAL_VALUE (valcontents)->cdr)->cdr; |
825 | XCONS (XCONS (XBUFFER_LOCAL_VALUE (valcontents)->cdr)->cdr)->car = tem1; | |
826 | XSETBUFFER (XCONS (XBUFFER_LOCAL_VALUE (valcontents)->cdr)->car, | |
827 | current_buffer); | |
828 | store_symval_forwarding (sym, XBUFFER_LOCAL_VALUE (valcontents)->car, | |
829 | Fcdr (tem1)); | |
7921925c | 830 | } |
8d4afcac | 831 | return XBUFFER_LOCAL_VALUE (valcontents)->car; |
7921925c JB |
832 | } |
833 | \f | |
14e76af9 JB |
834 | /* Find the value of a symbol, returning Qunbound if it's not bound. |
835 | This is helpful for code which just wants to get a variable's value | |
836 | if it has one, without signalling an error. | |
837 | Note that it must not be possible to quit | |
838 | within this function. Great care is required for this. */ | |
7921925c | 839 | |
14e76af9 JB |
840 | Lisp_Object |
841 | find_symbol_value (sym) | |
7921925c JB |
842 | Lisp_Object sym; |
843 | { | |
844 | register Lisp_Object valcontents, tem1; | |
845 | register Lisp_Object val; | |
846 | CHECK_SYMBOL (sym, 0); | |
847 | valcontents = XSYMBOL (sym)->value; | |
848 | ||
aabf6bec KH |
849 | if (BUFFER_LOCAL_VALUEP (valcontents) |
850 | || SOME_BUFFER_LOCAL_VALUEP (valcontents)) | |
536b772a | 851 | valcontents = swap_in_symval_forwarding (sym, valcontents); |
7921925c | 852 | |
536b772a KH |
853 | if (MISCP (valcontents)) |
854 | { | |
46b2ac21 KH |
855 | switch (XMISC (valcontents)->type) |
856 | { | |
857 | case Lisp_Misc_Intfwd: | |
858 | XSETINT (val, *XINTFWD (valcontents)->intvar); | |
859 | return val; | |
7921925c | 860 | |
46b2ac21 KH |
861 | case Lisp_Misc_Boolfwd: |
862 | return (*XBOOLFWD (valcontents)->boolvar ? Qt : Qnil); | |
7921925c | 863 | |
46b2ac21 KH |
864 | case Lisp_Misc_Objfwd: |
865 | return *XOBJFWD (valcontents)->objvar; | |
7921925c | 866 | |
46b2ac21 KH |
867 | case Lisp_Misc_Buffer_Objfwd: |
868 | return *(Lisp_Object *)(XBUFFER_OBJFWD (valcontents)->offset | |
869 | + (char *)current_buffer); | |
7403b5c8 KH |
870 | |
871 | case Lisp_Misc_Display_Objfwd: | |
31c45e79 KH |
872 | if (!current_perdisplay) |
873 | abort (); | |
7403b5c8 | 874 | return *(Lisp_Object *)(XDISPLAY_OBJFWD (valcontents)->offset |
31c45e79 | 875 | + (char *)current_perdisplay); |
46b2ac21 | 876 | } |
7921925c JB |
877 | } |
878 | ||
879 | return valcontents; | |
880 | } | |
881 | ||
14e76af9 JB |
882 | DEFUN ("symbol-value", Fsymbol_value, Ssymbol_value, 1, 1, 0, |
883 | "Return SYMBOL's value. Error if that is void.") | |
884 | (sym) | |
885 | Lisp_Object sym; | |
886 | { | |
0671d7c0 | 887 | Lisp_Object val; |
14e76af9 | 888 | |
0671d7c0 | 889 | val = find_symbol_value (sym); |
14e76af9 JB |
890 | if (EQ (val, Qunbound)) |
891 | return Fsignal (Qvoid_variable, Fcons (sym, Qnil)); | |
892 | else | |
893 | return val; | |
894 | } | |
895 | ||
7921925c JB |
896 | DEFUN ("set", Fset, Sset, 2, 2, 0, |
897 | "Set SYMBOL's value to NEWVAL, and return NEWVAL.") | |
898 | (sym, newval) | |
899 | register Lisp_Object sym, newval; | |
900 | { | |
1bfcade3 | 901 | int voide = EQ (newval, Qunbound); |
7921925c | 902 | |
7921925c | 903 | register Lisp_Object valcontents, tem1, current_alist_element; |
7921925c JB |
904 | |
905 | CHECK_SYMBOL (sym, 0); | |
a33ef3ab | 906 | if (NILP (sym) || EQ (sym, Qt)) |
7921925c JB |
907 | return Fsignal (Qsetting_constant, Fcons (sym, Qnil)); |
908 | valcontents = XSYMBOL (sym)->value; | |
909 | ||
e9ebc175 | 910 | if (BUFFER_OBJFWDP (valcontents)) |
7921925c | 911 | { |
46b2ac21 | 912 | register int idx = XBUFFER_OBJFWD (valcontents)->offset; |
865c050f KH |
913 | register int mask = XINT (*((Lisp_Object *) |
914 | (idx + (char *)&buffer_local_flags))); | |
7921925c JB |
915 | if (mask > 0) |
916 | current_buffer->local_var_flags |= mask; | |
917 | } | |
918 | ||
e9ebc175 KH |
919 | else if (BUFFER_LOCAL_VALUEP (valcontents) |
920 | || SOME_BUFFER_LOCAL_VALUEP (valcontents)) | |
7921925c | 921 | { |
8d4afcac KH |
922 | /* valcontents is actually a pointer to a struct resembling a cons, |
923 | with contents something like: | |
d8cafeb5 JB |
924 | (REALVALUE BUFFER CURRENT-ALIST-ELEMENT . DEFAULT-VALUE). |
925 | ||
926 | BUFFER is the last buffer for which this symbol's value was | |
927 | made up to date. | |
928 | ||
929 | CURRENT-ALIST-ELEMENT is a pointer to an element of BUFFER's | |
930 | local_var_alist, that being the element whose car is this | |
931 | variable. Or it can be a pointer to the | |
932 | (CURRENT-ALIST-ELEMENT . DEFAULT-VALUE), if BUFFER does not | |
933 | have an element in its alist for this variable (that is, if | |
934 | BUFFER sees the default value of this variable). | |
935 | ||
936 | If we want to examine or set the value and BUFFER is current, | |
937 | we just examine or set REALVALUE. If BUFFER is not current, we | |
938 | store the current REALVALUE value into CURRENT-ALIST-ELEMENT, | |
939 | then find the appropriate alist element for the buffer now | |
940 | current and set up CURRENT-ALIST-ELEMENT. Then we set | |
941 | REALVALUE out of that element, and store into BUFFER. | |
942 | ||
943 | If we are setting the variable and the current buffer does | |
944 | not have an alist entry for this variable, an alist entry is | |
945 | created. | |
946 | ||
947 | Note that REALVALUE can be a forwarding pointer. Each time | |
948 | it is examined or set, forwarding must be done. */ | |
949 | ||
950 | /* What value are we caching right now? */ | |
951 | current_alist_element = | |
8d4afcac | 952 | XCONS (XCONS (XBUFFER_LOCAL_VALUE (valcontents)->cdr)->cdr)->car; |
d8cafeb5 JB |
953 | |
954 | /* If the current buffer is not the buffer whose binding is | |
955 | currently cached, or if it's a Lisp_Buffer_Local_Value and | |
956 | we're looking at the default value, the cache is invalid; we | |
957 | need to write it out, and find the new CURRENT-ALIST-ELEMENT. */ | |
958 | if ((current_buffer | |
8d4afcac | 959 | != XBUFFER (XCONS (XBUFFER_LOCAL_VALUE (valcontents)->cdr)->car)) |
e9ebc175 | 960 | || (BUFFER_LOCAL_VALUEP (valcontents) |
b06faa91 JB |
961 | && EQ (XCONS (current_alist_element)->car, |
962 | current_alist_element))) | |
7921925c | 963 | { |
d8cafeb5 JB |
964 | /* Write out the cached value for the old buffer; copy it |
965 | back to its alist element. This works if the current | |
966 | buffer only sees the default value, too. */ | |
967 | Fsetcdr (current_alist_element, | |
8d4afcac | 968 | do_symval_forwarding (XBUFFER_LOCAL_VALUE (valcontents)->car)); |
7921925c | 969 | |
d8cafeb5 | 970 | /* Find the new value for CURRENT-ALIST-ELEMENT. */ |
7921925c | 971 | tem1 = Fassq (sym, current_buffer->local_var_alist); |
a33ef3ab | 972 | if (NILP (tem1)) |
d8cafeb5 JB |
973 | { |
974 | /* This buffer still sees the default value. */ | |
975 | ||
976 | /* If the variable is a Lisp_Some_Buffer_Local_Value, | |
977 | make CURRENT-ALIST-ELEMENT point to itself, | |
978 | indicating that we're seeing the default value. */ | |
e9ebc175 | 979 | if (SOME_BUFFER_LOCAL_VALUEP (valcontents)) |
8d4afcac | 980 | tem1 = XCONS (XBUFFER_LOCAL_VALUE (valcontents)->cdr)->cdr; |
d8cafeb5 JB |
981 | |
982 | /* If it's a Lisp_Buffer_Local_Value, give this buffer a | |
983 | new assoc for a local value and set | |
984 | CURRENT-ALIST-ELEMENT to point to that. */ | |
985 | else | |
986 | { | |
987 | tem1 = Fcons (sym, Fcdr (current_alist_element)); | |
988 | current_buffer->local_var_alist = | |
989 | Fcons (tem1, current_buffer->local_var_alist); | |
990 | } | |
991 | } | |
992 | /* Cache the new buffer's assoc in CURRENT-ALIST-ELEMENT. */ | |
8d4afcac KH |
993 | XCONS (XCONS (XBUFFER_LOCAL_VALUE (valcontents)->cdr)->cdr)->car |
994 | = tem1; | |
d8cafeb5 JB |
995 | |
996 | /* Set BUFFER, now that CURRENT-ALIST-ELEMENT is accurate. */ | |
8d4afcac KH |
997 | XSETBUFFER (XCONS (XBUFFER_LOCAL_VALUE (valcontents)->cdr)->car, |
998 | current_buffer); | |
7921925c | 999 | } |
8d4afcac | 1000 | valcontents = XBUFFER_LOCAL_VALUE (valcontents)->car; |
7921925c | 1001 | } |
d8cafeb5 | 1002 | |
7921925c JB |
1003 | /* If storing void (making the symbol void), forward only through |
1004 | buffer-local indicator, not through Lisp_Objfwd, etc. */ | |
1005 | if (voide) | |
1006 | store_symval_forwarding (sym, Qnil, newval); | |
1007 | else | |
1008 | store_symval_forwarding (sym, valcontents, newval); | |
d8cafeb5 | 1009 | |
7921925c JB |
1010 | return newval; |
1011 | } | |
1012 | \f | |
1013 | /* Access or set a buffer-local symbol's default value. */ | |
1014 | ||
1015 | /* Return the default value of SYM, but don't check for voidness. | |
1bfcade3 | 1016 | Return Qunbound if it is void. */ |
7921925c JB |
1017 | |
1018 | Lisp_Object | |
1019 | default_value (sym) | |
1020 | Lisp_Object sym; | |
1021 | { | |
1022 | register Lisp_Object valcontents; | |
1023 | ||
1024 | CHECK_SYMBOL (sym, 0); | |
1025 | valcontents = XSYMBOL (sym)->value; | |
1026 | ||
1027 | /* For a built-in buffer-local variable, get the default value | |
1028 | rather than letting do_symval_forwarding get the current value. */ | |
e9ebc175 | 1029 | if (BUFFER_OBJFWDP (valcontents)) |
7921925c | 1030 | { |
46b2ac21 | 1031 | register int idx = XBUFFER_OBJFWD (valcontents)->offset; |
7921925c | 1032 | |
865c050f | 1033 | if (XINT (*(Lisp_Object *) (idx + (char *) &buffer_local_flags)) != 0) |
7921925c JB |
1034 | return *(Lisp_Object *)(idx + (char *) &buffer_defaults); |
1035 | } | |
1036 | ||
1037 | /* Handle user-created local variables. */ | |
e9ebc175 KH |
1038 | if (BUFFER_LOCAL_VALUEP (valcontents) |
1039 | || SOME_BUFFER_LOCAL_VALUEP (valcontents)) | |
7921925c JB |
1040 | { |
1041 | /* If var is set up for a buffer that lacks a local value for it, | |
1042 | the current value is nominally the default value. | |
1043 | But the current value slot may be more up to date, since | |
1044 | ordinary setq stores just that slot. So use that. */ | |
1045 | Lisp_Object current_alist_element, alist_element_car; | |
1046 | current_alist_element | |
8d4afcac | 1047 | = XCONS (XCONS (XBUFFER_LOCAL_VALUE (valcontents)->cdr)->cdr)->car; |
7921925c JB |
1048 | alist_element_car = XCONS (current_alist_element)->car; |
1049 | if (EQ (alist_element_car, current_alist_element)) | |
8d4afcac | 1050 | return do_symval_forwarding (XBUFFER_LOCAL_VALUE (valcontents)->car); |
7921925c | 1051 | else |
8d4afcac | 1052 | return XCONS (XCONS (XBUFFER_LOCAL_VALUE (valcontents)->cdr)->cdr)->cdr; |
7921925c JB |
1053 | } |
1054 | /* For other variables, get the current value. */ | |
1055 | return do_symval_forwarding (valcontents); | |
1056 | } | |
1057 | ||
1058 | DEFUN ("default-boundp", Fdefault_boundp, Sdefault_boundp, 1, 1, 0, | |
1059 | "Return T if SYMBOL has a non-void default value.\n\ | |
1060 | This is the value that is seen in buffers that do not have their own values\n\ | |
1061 | for this variable.") | |
1062 | (sym) | |
1063 | Lisp_Object sym; | |
1064 | { | |
1065 | register Lisp_Object value; | |
1066 | ||
1067 | value = default_value (sym); | |
1bfcade3 | 1068 | return (EQ (value, Qunbound) ? Qnil : Qt); |
7921925c JB |
1069 | } |
1070 | ||
1071 | DEFUN ("default-value", Fdefault_value, Sdefault_value, 1, 1, 0, | |
1072 | "Return SYMBOL's default value.\n\ | |
1073 | This is the value that is seen in buffers that do not have their own values\n\ | |
1074 | for this variable. The default value is meaningful for variables with\n\ | |
1075 | local bindings in certain buffers.") | |
1076 | (sym) | |
1077 | Lisp_Object sym; | |
1078 | { | |
1079 | register Lisp_Object value; | |
1080 | ||
1081 | value = default_value (sym); | |
1bfcade3 | 1082 | if (EQ (value, Qunbound)) |
7921925c JB |
1083 | return Fsignal (Qvoid_variable, Fcons (sym, Qnil)); |
1084 | return value; | |
1085 | } | |
1086 | ||
1087 | DEFUN ("set-default", Fset_default, Sset_default, 2, 2, 0, | |
1088 | "Set SYMBOL's default value to VAL. SYMBOL and VAL are evaluated.\n\ | |
1089 | The default value is seen in buffers that do not have their own values\n\ | |
1090 | for this variable.") | |
1091 | (sym, value) | |
1092 | Lisp_Object sym, value; | |
1093 | { | |
1094 | register Lisp_Object valcontents, current_alist_element, alist_element_buffer; | |
1095 | ||
1096 | CHECK_SYMBOL (sym, 0); | |
1097 | valcontents = XSYMBOL (sym)->value; | |
1098 | ||
1099 | /* Handle variables like case-fold-search that have special slots | |
1100 | in the buffer. Make them work apparently like Lisp_Buffer_Local_Value | |
1101 | variables. */ | |
e9ebc175 | 1102 | if (BUFFER_OBJFWDP (valcontents)) |
7921925c | 1103 | { |
46b2ac21 | 1104 | register int idx = XBUFFER_OBJFWD (valcontents)->offset; |
7921925c | 1105 | register struct buffer *b; |
865c050f KH |
1106 | register int mask = XINT (*((Lisp_Object *) |
1107 | (idx + (char *)&buffer_local_flags))); | |
7921925c JB |
1108 | |
1109 | if (mask > 0) | |
1110 | { | |
1111 | *(Lisp_Object *)(idx + (char *) &buffer_defaults) = value; | |
1112 | for (b = all_buffers; b; b = b->next) | |
1113 | if (!(b->local_var_flags & mask)) | |
1114 | *(Lisp_Object *)(idx + (char *) b) = value; | |
1115 | } | |
1116 | return value; | |
1117 | } | |
1118 | ||
e9ebc175 KH |
1119 | if (!BUFFER_LOCAL_VALUEP (valcontents) |
1120 | && !SOME_BUFFER_LOCAL_VALUEP (valcontents)) | |
7921925c JB |
1121 | return Fset (sym, value); |
1122 | ||
1123 | /* Store new value into the DEFAULT-VALUE slot */ | |
8d4afcac | 1124 | XCONS (XCONS (XBUFFER_LOCAL_VALUE (valcontents)->cdr)->cdr)->cdr = value; |
7921925c JB |
1125 | |
1126 | /* If that slot is current, we must set the REALVALUE slot too */ | |
8d4afcac KH |
1127 | current_alist_element |
1128 | = XCONS (XCONS (XBUFFER_LOCAL_VALUE (valcontents)->cdr)->cdr)->car; | |
7921925c JB |
1129 | alist_element_buffer = Fcar (current_alist_element); |
1130 | if (EQ (alist_element_buffer, current_alist_element)) | |
8d4afcac KH |
1131 | store_symval_forwarding (sym, XBUFFER_LOCAL_VALUE (valcontents)->car, |
1132 | value); | |
7921925c JB |
1133 | |
1134 | return value; | |
1135 | } | |
1136 | ||
1137 | DEFUN ("setq-default", Fsetq_default, Ssetq_default, 2, UNEVALLED, 0, | |
0412bf67 RS |
1138 | "Set the default value of variable VAR to VALUE.\n\ |
1139 | VAR, the variable name, is literal (not evaluated);\n\ | |
1140 | VALUE is an expression and it is evaluated.\n\ | |
1141 | The default value of a variable is seen in buffers\n\ | |
1142 | that do not have their own values for the variable.\n\ | |
1143 | \n\ | |
1144 | More generally, you can use multiple variables and values, as in\n\ | |
1145 | (setq-default SYM VALUE SYM VALUE...)\n\ | |
1146 | This sets each SYM's default value to the corresponding VALUE.\n\ | |
1147 | The VALUE for the Nth SYM can refer to the new default values\n\ | |
1148 | of previous SYMs.") | |
7921925c JB |
1149 | (args) |
1150 | Lisp_Object args; | |
1151 | { | |
1152 | register Lisp_Object args_left; | |
1153 | register Lisp_Object val, sym; | |
1154 | struct gcpro gcpro1; | |
1155 | ||
a33ef3ab | 1156 | if (NILP (args)) |
7921925c JB |
1157 | return Qnil; |
1158 | ||
1159 | args_left = args; | |
1160 | GCPRO1 (args); | |
1161 | ||
1162 | do | |
1163 | { | |
1164 | val = Feval (Fcar (Fcdr (args_left))); | |
1165 | sym = Fcar (args_left); | |
1166 | Fset_default (sym, val); | |
1167 | args_left = Fcdr (Fcdr (args_left)); | |
1168 | } | |
a33ef3ab | 1169 | while (!NILP (args_left)); |
7921925c JB |
1170 | |
1171 | UNGCPRO; | |
1172 | return val; | |
1173 | } | |
1174 | \f | |
a5ca2b75 JB |
1175 | /* Lisp functions for creating and removing buffer-local variables. */ |
1176 | ||
7921925c JB |
1177 | DEFUN ("make-variable-buffer-local", Fmake_variable_buffer_local, Smake_variable_buffer_local, |
1178 | 1, 1, "vMake Variable Buffer Local: ", | |
1179 | "Make VARIABLE have a separate value for each buffer.\n\ | |
1180 | At any time, the value for the current buffer is in effect.\n\ | |
1181 | There is also a default value which is seen in any buffer which has not yet\n\ | |
1182 | set its own value.\n\ | |
1183 | Using `set' or `setq' to set the variable causes it to have a separate value\n\ | |
1184 | for the current buffer if it was previously using the default value.\n\ | |
1185 | The function `default-value' gets the default value and `set-default' sets it.") | |
1186 | (sym) | |
1187 | register Lisp_Object sym; | |
1188 | { | |
8d4afcac | 1189 | register Lisp_Object tem, valcontents, newval; |
7921925c JB |
1190 | |
1191 | CHECK_SYMBOL (sym, 0); | |
1192 | ||
7403b5c8 KH |
1193 | valcontents = XSYMBOL (sym)->value; |
1194 | if (EQ (sym, Qnil) || EQ (sym, Qt) || DISPLAY_OBJFWDP (valcontents)) | |
7921925c JB |
1195 | error ("Symbol %s may not be buffer-local", XSYMBOL (sym)->name->data); |
1196 | ||
e9ebc175 | 1197 | if (BUFFER_LOCAL_VALUEP (valcontents) || BUFFER_OBJFWDP (valcontents)) |
7921925c | 1198 | return sym; |
e9ebc175 | 1199 | if (SOME_BUFFER_LOCAL_VALUEP (valcontents)) |
7921925c | 1200 | { |
8d4afcac | 1201 | XMISC (XSYMBOL (sym)->value)->type = Lisp_Misc_Buffer_Local_Value; |
7921925c JB |
1202 | return sym; |
1203 | } | |
1204 | if (EQ (valcontents, Qunbound)) | |
1205 | XSYMBOL (sym)->value = Qnil; | |
1206 | tem = Fcons (Qnil, Fsymbol_value (sym)); | |
1207 | XCONS (tem)->car = tem; | |
8d4afcac KH |
1208 | newval = allocate_misc (); |
1209 | XMISC (newval)->type = Lisp_Misc_Buffer_Local_Value; | |
1210 | XBUFFER_LOCAL_VALUE (newval)->car = XSYMBOL (sym)->value; | |
1211 | XBUFFER_LOCAL_VALUE (newval)->cdr = Fcons (Fcurrent_buffer (), tem); | |
1212 | XSYMBOL (sym)->value = newval; | |
7921925c JB |
1213 | return sym; |
1214 | } | |
1215 | ||
1216 | DEFUN ("make-local-variable", Fmake_local_variable, Smake_local_variable, | |
1217 | 1, 1, "vMake Local Variable: ", | |
1218 | "Make VARIABLE have a separate value in the current buffer.\n\ | |
1219 | Other buffers will continue to share a common default value.\n\ | |
a782f0d5 RS |
1220 | \(The buffer-local value of VARIABLE starts out as the same value\n\ |
1221 | VARIABLE previously had. If VARIABLE was void, it remains void.\)\n\ | |
7921925c JB |
1222 | See also `make-variable-buffer-local'.\n\n\ |
1223 | If the variable is already arranged to become local when set,\n\ | |
1224 | this function causes a local value to exist for this buffer,\n\ | |
62476adc RS |
1225 | just as setting the variable would do.\n\ |
1226 | \n\ | |
1227 | Do not use `make-local-variable' to make a hook variable buffer-local.\n\ | |
1228 | Use `make-local-hook' instead.") | |
7921925c JB |
1229 | (sym) |
1230 | register Lisp_Object sym; | |
1231 | { | |
1232 | register Lisp_Object tem, valcontents; | |
1233 | ||
1234 | CHECK_SYMBOL (sym, 0); | |
1235 | ||
7403b5c8 KH |
1236 | valcontents = XSYMBOL (sym)->value; |
1237 | if (EQ (sym, Qnil) || EQ (sym, Qt) || DISPLAY_OBJFWDP (valcontents)) | |
7921925c JB |
1238 | error ("Symbol %s may not be buffer-local", XSYMBOL (sym)->name->data); |
1239 | ||
e9ebc175 | 1240 | if (BUFFER_LOCAL_VALUEP (valcontents) || BUFFER_OBJFWDP (valcontents)) |
7921925c JB |
1241 | { |
1242 | tem = Fboundp (sym); | |
7403b5c8 | 1243 | |
7921925c JB |
1244 | /* Make sure the symbol has a local value in this particular buffer, |
1245 | by setting it to the same value it already has. */ | |
1246 | Fset (sym, (EQ (tem, Qt) ? Fsymbol_value (sym) : Qunbound)); | |
1247 | return sym; | |
1248 | } | |
1249 | /* Make sure sym is set up to hold per-buffer values */ | |
e9ebc175 | 1250 | if (!SOME_BUFFER_LOCAL_VALUEP (valcontents)) |
7921925c | 1251 | { |
8d4afcac | 1252 | Lisp_Object newval; |
7921925c JB |
1253 | tem = Fcons (Qnil, do_symval_forwarding (valcontents)); |
1254 | XCONS (tem)->car = tem; | |
8d4afcac KH |
1255 | newval = allocate_misc (); |
1256 | XMISC (newval)->type = Lisp_Misc_Some_Buffer_Local_Value; | |
1257 | XBUFFER_LOCAL_VALUE (newval)->car = XSYMBOL (sym)->value; | |
1258 | XBUFFER_LOCAL_VALUE (newval)->cdr = Fcons (Qnil, tem); | |
1259 | XSYMBOL (sym)->value = newval; | |
7921925c JB |
1260 | } |
1261 | /* Make sure this buffer has its own value of sym */ | |
1262 | tem = Fassq (sym, current_buffer->local_var_alist); | |
a33ef3ab | 1263 | if (NILP (tem)) |
7921925c JB |
1264 | { |
1265 | current_buffer->local_var_alist | |
8d4afcac | 1266 | = Fcons (Fcons (sym, XCONS (XCONS (XBUFFER_LOCAL_VALUE (XSYMBOL (sym)->value)->cdr)->cdr)->cdr), |
7921925c JB |
1267 | current_buffer->local_var_alist); |
1268 | ||
1269 | /* Make sure symbol does not think it is set up for this buffer; | |
1270 | force it to look once again for this buffer's value */ | |
1271 | { | |
8d4afcac KH |
1272 | Lisp_Object *pvalbuf; |
1273 | valcontents = XSYMBOL (sym)->value; | |
1274 | pvalbuf = &XCONS (XBUFFER_LOCAL_VALUE (valcontents)->cdr)->car; | |
1275 | if (current_buffer == XBUFFER (*pvalbuf)) | |
1276 | *pvalbuf = Qnil; | |
7921925c | 1277 | } |
7921925c | 1278 | } |
a5ca2b75 JB |
1279 | |
1280 | /* If the symbol forwards into a C variable, then swap in the | |
1281 | variable for this buffer immediately. If C code modifies the | |
1282 | variable before we swap in, then that new value will clobber the | |
1283 | default value the next time we swap. */ | |
8d4afcac | 1284 | valcontents = XBUFFER_LOCAL_VALUE (XSYMBOL (sym)->value)->car; |
e9ebc175 | 1285 | if (INTFWDP (valcontents) || BOOLFWDP (valcontents) || OBJFWDP (valcontents)) |
a5ca2b75 JB |
1286 | swap_in_symval_forwarding (sym, XSYMBOL (sym)->value); |
1287 | ||
7921925c JB |
1288 | return sym; |
1289 | } | |
1290 | ||
1291 | DEFUN ("kill-local-variable", Fkill_local_variable, Skill_local_variable, | |
1292 | 1, 1, "vKill Local Variable: ", | |
1293 | "Make VARIABLE no longer have a separate value in the current buffer.\n\ | |
1294 | From now on the default value will apply in this buffer.") | |
1295 | (sym) | |
1296 | register Lisp_Object sym; | |
1297 | { | |
1298 | register Lisp_Object tem, valcontents; | |
1299 | ||
1300 | CHECK_SYMBOL (sym, 0); | |
1301 | ||
1302 | valcontents = XSYMBOL (sym)->value; | |
1303 | ||
e9ebc175 | 1304 | if (BUFFER_OBJFWDP (valcontents)) |
7921925c | 1305 | { |
46b2ac21 | 1306 | register int idx = XBUFFER_OBJFWD (valcontents)->offset; |
865c050f KH |
1307 | register int mask = XINT (*((Lisp_Object*) |
1308 | (idx + (char *)&buffer_local_flags))); | |
7921925c JB |
1309 | |
1310 | if (mask > 0) | |
1311 | { | |
1312 | *(Lisp_Object *)(idx + (char *) current_buffer) | |
1313 | = *(Lisp_Object *)(idx + (char *) &buffer_defaults); | |
1314 | current_buffer->local_var_flags &= ~mask; | |
1315 | } | |
1316 | return sym; | |
1317 | } | |
1318 | ||
e9ebc175 KH |
1319 | if (!BUFFER_LOCAL_VALUEP (valcontents) |
1320 | && !SOME_BUFFER_LOCAL_VALUEP (valcontents)) | |
7921925c JB |
1321 | return sym; |
1322 | ||
1323 | /* Get rid of this buffer's alist element, if any */ | |
1324 | ||
1325 | tem = Fassq (sym, current_buffer->local_var_alist); | |
a33ef3ab | 1326 | if (!NILP (tem)) |
8d4afcac KH |
1327 | current_buffer->local_var_alist |
1328 | = Fdelq (tem, current_buffer->local_var_alist); | |
7921925c JB |
1329 | |
1330 | /* Make sure symbol does not think it is set up for this buffer; | |
1331 | force it to look once again for this buffer's value */ | |
1332 | { | |
8d4afcac KH |
1333 | Lisp_Object *pvalbuf; |
1334 | valcontents = XSYMBOL (sym)->value; | |
1335 | pvalbuf = &XCONS (XBUFFER_LOCAL_VALUE (valcontents)->cdr)->car; | |
1336 | if (current_buffer == XBUFFER (*pvalbuf)) | |
1337 | *pvalbuf = Qnil; | |
7921925c JB |
1338 | } |
1339 | ||
1340 | return sym; | |
1341 | } | |
62476adc RS |
1342 | |
1343 | DEFUN ("local-variable-p", Flocal_variable_p, Slocal_variable_p, | |
1344 | 1, 1, 0, | |
1345 | "Non-nil if VARIABLE has a local binding in the current buffer.") | |
1346 | (sym) | |
1347 | register Lisp_Object sym; | |
1348 | { | |
1349 | Lisp_Object valcontents; | |
1350 | ||
1351 | CHECK_SYMBOL (sym, 0); | |
1352 | ||
1353 | valcontents = XSYMBOL (sym)->value; | |
1354 | return ((BUFFER_LOCAL_VALUEP (valcontents) | |
1355 | || SOME_BUFFER_LOCAL_VALUEP (valcontents) | |
1356 | || BUFFER_OBJFWDP (valcontents)) | |
1357 | ? Qt : Qnil); | |
1358 | } | |
7921925c | 1359 | \f |
ffd56f97 JB |
1360 | /* Find the function at the end of a chain of symbol function indirections. */ |
1361 | ||
1362 | /* If OBJECT is a symbol, find the end of its function chain and | |
1363 | return the value found there. If OBJECT is not a symbol, just | |
1364 | return it. If there is a cycle in the function chain, signal a | |
1365 | cyclic-function-indirection error. | |
1366 | ||
1367 | This is like Findirect_function, except that it doesn't signal an | |
1368 | error if the chain ends up unbound. */ | |
1369 | Lisp_Object | |
a2932990 | 1370 | indirect_function (object) |
62476adc | 1371 | register Lisp_Object object; |
ffd56f97 | 1372 | { |
eb8c3be9 | 1373 | Lisp_Object tortoise, hare; |
ffd56f97 | 1374 | |
eb8c3be9 | 1375 | hare = tortoise = object; |
ffd56f97 JB |
1376 | |
1377 | for (;;) | |
1378 | { | |
e9ebc175 | 1379 | if (!SYMBOLP (hare) || EQ (hare, Qunbound)) |
ffd56f97 JB |
1380 | break; |
1381 | hare = XSYMBOL (hare)->function; | |
e9ebc175 | 1382 | if (!SYMBOLP (hare) || EQ (hare, Qunbound)) |
ffd56f97 JB |
1383 | break; |
1384 | hare = XSYMBOL (hare)->function; | |
1385 | ||
eb8c3be9 | 1386 | tortoise = XSYMBOL (tortoise)->function; |
ffd56f97 | 1387 | |
eb8c3be9 | 1388 | if (EQ (hare, tortoise)) |
ffd56f97 JB |
1389 | Fsignal (Qcyclic_function_indirection, Fcons (object, Qnil)); |
1390 | } | |
1391 | ||
1392 | return hare; | |
1393 | } | |
1394 | ||
1395 | DEFUN ("indirect-function", Findirect_function, Sindirect_function, 1, 1, 0, | |
1396 | "Return the function at the end of OBJECT's function chain.\n\ | |
1397 | If OBJECT is a symbol, follow all function indirections and return the final\n\ | |
1398 | function binding.\n\ | |
1399 | If OBJECT is not a symbol, just return it.\n\ | |
1400 | Signal a void-function error if the final symbol is unbound.\n\ | |
1401 | Signal a cyclic-function-indirection error if there is a loop in the\n\ | |
1402 | function chain of symbols.") | |
1403 | (object) | |
1404 | register Lisp_Object object; | |
1405 | { | |
1406 | Lisp_Object result; | |
1407 | ||
1408 | result = indirect_function (object); | |
1409 | ||
1410 | if (EQ (result, Qunbound)) | |
1411 | return Fsignal (Qvoid_function, Fcons (object, Qnil)); | |
1412 | return result; | |
1413 | } | |
1414 | \f | |
7921925c JB |
1415 | /* Extract and set vector and string elements */ |
1416 | ||
1417 | DEFUN ("aref", Faref, Saref, 2, 2, 0, | |
1418 | "Return the element of ARRAY at index INDEX.\n\ | |
1419 | ARRAY may be a vector or a string, or a byte-code object. INDEX starts at 0.") | |
1420 | (array, idx) | |
1421 | register Lisp_Object array; | |
1422 | Lisp_Object idx; | |
1423 | { | |
1424 | register int idxval; | |
1425 | ||
1426 | CHECK_NUMBER (idx, 1); | |
1427 | idxval = XINT (idx); | |
e9ebc175 | 1428 | if (STRINGP (array)) |
7921925c JB |
1429 | { |
1430 | Lisp_Object val; | |
c24e4efe KH |
1431 | if (idxval < 0 || idxval >= XSTRING (array)->size) |
1432 | args_out_of_range (array, idx); | |
1b42cf2e | 1433 | XSETFASTINT (val, (unsigned char) XSTRING (array)->data[idxval]); |
7921925c JB |
1434 | return val; |
1435 | } | |
1436 | else | |
c24e4efe | 1437 | { |
7f358972 RS |
1438 | int size; |
1439 | if (VECTORP (array)) | |
1440 | size = XVECTOR (array)->size; | |
1441 | else if (COMPILEDP (array)) | |
1442 | size = XVECTOR (array)->size & PSEUDOVECTOR_SIZE_MASK; | |
1443 | else | |
1444 | wrong_type_argument (Qarrayp, array); | |
1445 | ||
1446 | if (idxval < 0 || idxval >= size) | |
c24e4efe KH |
1447 | args_out_of_range (array, idx); |
1448 | return XVECTOR (array)->contents[idxval]; | |
1449 | } | |
7921925c JB |
1450 | } |
1451 | ||
1452 | DEFUN ("aset", Faset, Saset, 3, 3, 0, | |
73d40355 RS |
1453 | "Store into the element of ARRAY at index IDX the value NEWELT.\n\ |
1454 | ARRAY may be a vector or a string. IDX starts at 0.") | |
7921925c JB |
1455 | (array, idx, newelt) |
1456 | register Lisp_Object array; | |
1457 | Lisp_Object idx, newelt; | |
1458 | { | |
1459 | register int idxval; | |
1460 | ||
1461 | CHECK_NUMBER (idx, 1); | |
1462 | idxval = XINT (idx); | |
e9ebc175 | 1463 | if (!VECTORP (array) && !STRINGP (array)) |
7921925c | 1464 | array = wrong_type_argument (Qarrayp, array); |
7921925c JB |
1465 | CHECK_IMPURE (array); |
1466 | ||
e9ebc175 | 1467 | if (VECTORP (array)) |
c24e4efe KH |
1468 | { |
1469 | if (idxval < 0 || idxval >= XVECTOR (array)->size) | |
1470 | args_out_of_range (array, idx); | |
1471 | XVECTOR (array)->contents[idxval] = newelt; | |
1472 | } | |
7921925c JB |
1473 | else |
1474 | { | |
c24e4efe KH |
1475 | if (idxval < 0 || idxval >= XSTRING (array)->size) |
1476 | args_out_of_range (array, idx); | |
7921925c JB |
1477 | CHECK_NUMBER (newelt, 2); |
1478 | XSTRING (array)->data[idxval] = XINT (newelt); | |
1479 | } | |
1480 | ||
1481 | return newelt; | |
1482 | } | |
7921925c JB |
1483 | \f |
1484 | /* Arithmetic functions */ | |
1485 | ||
1486 | enum comparison { equal, notequal, less, grtr, less_or_equal, grtr_or_equal }; | |
1487 | ||
1488 | Lisp_Object | |
1489 | arithcompare (num1, num2, comparison) | |
1490 | Lisp_Object num1, num2; | |
1491 | enum comparison comparison; | |
1492 | { | |
1493 | double f1, f2; | |
1494 | int floatp = 0; | |
1495 | ||
1496 | #ifdef LISP_FLOAT_TYPE | |
1497 | CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (num1, 0); | |
1498 | CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (num2, 0); | |
1499 | ||
e9ebc175 | 1500 | if (FLOATP (num1) || FLOATP (num2)) |
7921925c JB |
1501 | { |
1502 | floatp = 1; | |
e9ebc175 KH |
1503 | f1 = (FLOATP (num1)) ? XFLOAT (num1)->data : XINT (num1); |
1504 | f2 = (FLOATP (num2)) ? XFLOAT (num2)->data : XINT (num2); | |
7921925c JB |
1505 | } |
1506 | #else | |
1507 | CHECK_NUMBER_COERCE_MARKER (num1, 0); | |
1508 | CHECK_NUMBER_COERCE_MARKER (num2, 0); | |
1509 | #endif /* LISP_FLOAT_TYPE */ | |
1510 | ||
1511 | switch (comparison) | |
1512 | { | |
1513 | case equal: | |
1514 | if (floatp ? f1 == f2 : XINT (num1) == XINT (num2)) | |
1515 | return Qt; | |
1516 | return Qnil; | |
1517 | ||
1518 | case notequal: | |
1519 | if (floatp ? f1 != f2 : XINT (num1) != XINT (num2)) | |
1520 | return Qt; | |
1521 | return Qnil; | |
1522 | ||
1523 | case less: | |
1524 | if (floatp ? f1 < f2 : XINT (num1) < XINT (num2)) | |
1525 | return Qt; | |
1526 | return Qnil; | |
1527 | ||
1528 | case less_or_equal: | |
1529 | if (floatp ? f1 <= f2 : XINT (num1) <= XINT (num2)) | |
1530 | return Qt; | |
1531 | return Qnil; | |
1532 | ||
1533 | case grtr: | |
1534 | if (floatp ? f1 > f2 : XINT (num1) > XINT (num2)) | |
1535 | return Qt; | |
1536 | return Qnil; | |
1537 | ||
1538 | case grtr_or_equal: | |
1539 | if (floatp ? f1 >= f2 : XINT (num1) >= XINT (num2)) | |
1540 | return Qt; | |
1541 | return Qnil; | |
25e40a4b JB |
1542 | |
1543 | default: | |
1544 | abort (); | |
7921925c JB |
1545 | } |
1546 | } | |
1547 | ||
1548 | DEFUN ("=", Feqlsign, Seqlsign, 2, 2, 0, | |
1549 | "T if two args, both numbers or markers, are equal.") | |
1550 | (num1, num2) | |
1551 | register Lisp_Object num1, num2; | |
1552 | { | |
1553 | return arithcompare (num1, num2, equal); | |
1554 | } | |
1555 | ||
1556 | DEFUN ("<", Flss, Slss, 2, 2, 0, | |
1557 | "T if first arg is less than second arg. Both must be numbers or markers.") | |
1558 | (num1, num2) | |
1559 | register Lisp_Object num1, num2; | |
1560 | { | |
1561 | return arithcompare (num1, num2, less); | |
1562 | } | |
1563 | ||
1564 | DEFUN (">", Fgtr, Sgtr, 2, 2, 0, | |
1565 | "T if first arg is greater than second arg. Both must be numbers or markers.") | |
1566 | (num1, num2) | |
1567 | register Lisp_Object num1, num2; | |
1568 | { | |
1569 | return arithcompare (num1, num2, grtr); | |
1570 | } | |
1571 | ||
1572 | DEFUN ("<=", Fleq, Sleq, 2, 2, 0, | |
1573 | "T if first arg is less than or equal to second arg.\n\ | |
1574 | Both must be numbers or markers.") | |
1575 | (num1, num2) | |
1576 | register Lisp_Object num1, num2; | |
1577 | { | |
1578 | return arithcompare (num1, num2, less_or_equal); | |
1579 | } | |
1580 | ||
1581 | DEFUN (">=", Fgeq, Sgeq, 2, 2, 0, | |
1582 | "T if first arg is greater than or equal to second arg.\n\ | |
1583 | Both must be numbers or markers.") | |
1584 | (num1, num2) | |
1585 | register Lisp_Object num1, num2; | |
1586 | { | |
1587 | return arithcompare (num1, num2, grtr_or_equal); | |
1588 | } | |
1589 | ||
1590 | DEFUN ("/=", Fneq, Sneq, 2, 2, 0, | |
1591 | "T if first arg is not equal to second arg. Both must be numbers or markers.") | |
1592 | (num1, num2) | |
1593 | register Lisp_Object num1, num2; | |
1594 | { | |
1595 | return arithcompare (num1, num2, notequal); | |
1596 | } | |
1597 | ||
1598 | DEFUN ("zerop", Fzerop, Szerop, 1, 1, 0, "T if NUMBER is zero.") | |
1599 | (num) | |
1600 | register Lisp_Object num; | |
1601 | { | |
1602 | #ifdef LISP_FLOAT_TYPE | |
1603 | CHECK_NUMBER_OR_FLOAT (num, 0); | |
1604 | ||
e9ebc175 | 1605 | if (FLOATP (num)) |
7921925c JB |
1606 | { |
1607 | if (XFLOAT(num)->data == 0.0) | |
1608 | return Qt; | |
1609 | return Qnil; | |
1610 | } | |
1611 | #else | |
1612 | CHECK_NUMBER (num, 0); | |
1613 | #endif /* LISP_FLOAT_TYPE */ | |
1614 | ||
1615 | if (!XINT (num)) | |
1616 | return Qt; | |
1617 | return Qnil; | |
1618 | } | |
1619 | \f | |
51cf3e31 JB |
1620 | /* Convert between 32-bit values and pairs of lispy 24-bit values. */ |
1621 | ||
1622 | Lisp_Object | |
1623 | long_to_cons (i) | |
1624 | unsigned long i; | |
1625 | { | |
1626 | unsigned int top = i >> 16; | |
1627 | unsigned int bot = i & 0xFFFF; | |
1628 | if (top == 0) | |
1629 | return make_number (bot); | |
1630 | if (top == 0xFFFF) | |
1631 | return Fcons (make_number (-1), make_number (bot)); | |
1632 | return Fcons (make_number (top), make_number (bot)); | |
1633 | } | |
1634 | ||
1635 | unsigned long | |
1636 | cons_to_long (c) | |
1637 | Lisp_Object c; | |
1638 | { | |
878a80cc | 1639 | Lisp_Object top, bot; |
51cf3e31 JB |
1640 | if (INTEGERP (c)) |
1641 | return XINT (c); | |
1642 | top = XCONS (c)->car; | |
1643 | bot = XCONS (c)->cdr; | |
1644 | if (CONSP (bot)) | |
1645 | bot = XCONS (bot)->car; | |
1646 | return ((XINT (top) << 16) | XINT (bot)); | |
1647 | } | |
1648 | \f | |
f2980264 | 1649 | DEFUN ("number-to-string", Fnumber_to_string, Snumber_to_string, 1, 1, 0, |
25e40a4b JB |
1650 | "Convert NUM to a string by printing it in decimal.\n\ |
1651 | Uses a minus sign if negative.\n\ | |
1652 | NUM may be an integer or a floating point number.") | |
7921925c JB |
1653 | (num) |
1654 | Lisp_Object num; | |
1655 | { | |
1656 | char buffer[20]; | |
1657 | ||
1658 | #ifndef LISP_FLOAT_TYPE | |
1659 | CHECK_NUMBER (num, 0); | |
1660 | #else | |
1661 | CHECK_NUMBER_OR_FLOAT (num, 0); | |
1662 | ||
e9ebc175 | 1663 | if (FLOATP (num)) |
7921925c JB |
1664 | { |
1665 | char pigbuf[350]; /* see comments in float_to_string */ | |
1666 | ||
1667 | float_to_string (pigbuf, XFLOAT(num)->data); | |
7403b5c8 | 1668 | return build_string (pigbuf); |
7921925c JB |
1669 | } |
1670 | #endif /* LISP_FLOAT_TYPE */ | |
1671 | ||
1672 | sprintf (buffer, "%d", XINT (num)); | |
1673 | return build_string (buffer); | |
1674 | } | |
1675 | ||
25e40a4b JB |
1676 | DEFUN ("string-to-number", Fstring_to_number, Sstring_to_number, 1, 1, 0, |
1677 | "Convert STRING to a number by parsing it as a decimal number.\n\ | |
1c1c17eb RS |
1678 | This parses both integers and floating point numbers.\n\ |
1679 | It ignores leading spaces and tabs.") | |
7921925c JB |
1680 | (str) |
1681 | register Lisp_Object str; | |
1682 | { | |
0a3e4d65 | 1683 | unsigned char *p; |
25e40a4b | 1684 | |
7921925c JB |
1685 | CHECK_STRING (str, 0); |
1686 | ||
25e40a4b JB |
1687 | p = XSTRING (str)->data; |
1688 | ||
1689 | /* Skip any whitespace at the front of the number. Some versions of | |
1690 | atoi do this anyway, so we might as well make Emacs lisp consistent. */ | |
0a3e4d65 | 1691 | while (*p == ' ' || *p == '\t') |
25e40a4b JB |
1692 | p++; |
1693 | ||
7921925c | 1694 | #ifdef LISP_FLOAT_TYPE |
25e40a4b JB |
1695 | if (isfloat_string (p)) |
1696 | return make_float (atof (p)); | |
7921925c JB |
1697 | #endif /* LISP_FLOAT_TYPE */ |
1698 | ||
25e40a4b | 1699 | return make_number (atoi (p)); |
7921925c | 1700 | } |
7403b5c8 | 1701 | \f |
7921925c JB |
1702 | enum arithop |
1703 | { Aadd, Asub, Amult, Adiv, Alogand, Alogior, Alogxor, Amax, Amin }; | |
1704 | ||
b06faa91 JB |
1705 | extern Lisp_Object float_arith_driver (); |
1706 | ||
7921925c | 1707 | Lisp_Object |
87fbf902 | 1708 | arith_driver (code, nargs, args) |
7921925c JB |
1709 | enum arithop code; |
1710 | int nargs; | |
1711 | register Lisp_Object *args; | |
1712 | { | |
1713 | register Lisp_Object val; | |
1714 | register int argnum; | |
1715 | register int accum; | |
1716 | register int next; | |
1717 | ||
0220c518 | 1718 | switch (SWITCH_ENUM_CAST (code)) |
7921925c JB |
1719 | { |
1720 | case Alogior: | |
1721 | case Alogxor: | |
1722 | case Aadd: | |
1723 | case Asub: | |
1724 | accum = 0; break; | |
1725 | case Amult: | |
1726 | accum = 1; break; | |
1727 | case Alogand: | |
1728 | accum = -1; break; | |
1729 | } | |
1730 | ||
1731 | for (argnum = 0; argnum < nargs; argnum++) | |
1732 | { | |
1733 | val = args[argnum]; /* using args[argnum] as argument to CHECK_NUMBER_... */ | |
1734 | #ifdef LISP_FLOAT_TYPE | |
1735 | CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (val, argnum); | |
1736 | ||
e9ebc175 | 1737 | if (FLOATP (val)) /* time to do serious math */ |
7921925c JB |
1738 | return (float_arith_driver ((double) accum, argnum, code, |
1739 | nargs, args)); | |
1740 | #else | |
1741 | CHECK_NUMBER_COERCE_MARKER (val, argnum); | |
1742 | #endif /* LISP_FLOAT_TYPE */ | |
1743 | args[argnum] = val; /* runs into a compiler bug. */ | |
1744 | next = XINT (args[argnum]); | |
0220c518 | 1745 | switch (SWITCH_ENUM_CAST (code)) |
7921925c JB |
1746 | { |
1747 | case Aadd: accum += next; break; | |
1748 | case Asub: | |
1749 | if (!argnum && nargs != 1) | |
1750 | next = - next; | |
1751 | accum -= next; | |
1752 | break; | |
1753 | case Amult: accum *= next; break; | |
1754 | case Adiv: | |
1755 | if (!argnum) accum = next; | |
87fbf902 RS |
1756 | else |
1757 | { | |
1758 | if (next == 0) | |
1759 | Fsignal (Qarith_error, Qnil); | |
1760 | accum /= next; | |
1761 | } | |
7921925c JB |
1762 | break; |
1763 | case Alogand: accum &= next; break; | |
1764 | case Alogior: accum |= next; break; | |
1765 | case Alogxor: accum ^= next; break; | |
1766 | case Amax: if (!argnum || next > accum) accum = next; break; | |
1767 | case Amin: if (!argnum || next < accum) accum = next; break; | |
1768 | } | |
1769 | } | |
1770 | ||
f187f1f7 | 1771 | XSETINT (val, accum); |
7921925c JB |
1772 | return val; |
1773 | } | |
1774 | ||
1775 | #ifdef LISP_FLOAT_TYPE | |
1a2f2d33 KH |
1776 | |
1777 | #undef isnan | |
1778 | #define isnan(x) ((x) != (x)) | |
1779 | ||
7921925c JB |
1780 | Lisp_Object |
1781 | float_arith_driver (accum, argnum, code, nargs, args) | |
1782 | double accum; | |
1783 | register int argnum; | |
1784 | enum arithop code; | |
1785 | int nargs; | |
1786 | register Lisp_Object *args; | |
1787 | { | |
1788 | register Lisp_Object val; | |
1789 | double next; | |
7403b5c8 | 1790 | |
7921925c JB |
1791 | for (; argnum < nargs; argnum++) |
1792 | { | |
1793 | val = args[argnum]; /* using args[argnum] as argument to CHECK_NUMBER_... */ | |
1794 | CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (val, argnum); | |
1795 | ||
e9ebc175 | 1796 | if (FLOATP (val)) |
7921925c JB |
1797 | { |
1798 | next = XFLOAT (val)->data; | |
1799 | } | |
1800 | else | |
1801 | { | |
1802 | args[argnum] = val; /* runs into a compiler bug. */ | |
1803 | next = XINT (args[argnum]); | |
1804 | } | |
0220c518 | 1805 | switch (SWITCH_ENUM_CAST (code)) |
7921925c JB |
1806 | { |
1807 | case Aadd: | |
1808 | accum += next; | |
1809 | break; | |
1810 | case Asub: | |
1811 | if (!argnum && nargs != 1) | |
1812 | next = - next; | |
1813 | accum -= next; | |
1814 | break; | |
1815 | case Amult: | |
1816 | accum *= next; | |
1817 | break; | |
1818 | case Adiv: | |
1819 | if (!argnum) | |
1820 | accum = next; | |
1821 | else | |
87fbf902 RS |
1822 | { |
1823 | if (next == 0) | |
1824 | Fsignal (Qarith_error, Qnil); | |
1825 | accum /= next; | |
1826 | } | |
7921925c JB |
1827 | break; |
1828 | case Alogand: | |
1829 | case Alogior: | |
1830 | case Alogxor: | |
1831 | return wrong_type_argument (Qinteger_or_marker_p, val); | |
1832 | case Amax: | |
1a2f2d33 | 1833 | if (!argnum || isnan (next) || next > accum) |
7921925c JB |
1834 | accum = next; |
1835 | break; | |
1836 | case Amin: | |
1a2f2d33 | 1837 | if (!argnum || isnan (next) || next < accum) |
7921925c JB |
1838 | accum = next; |
1839 | break; | |
1840 | } | |
1841 | } | |
1842 | ||
1843 | return make_float (accum); | |
1844 | } | |
1845 | #endif /* LISP_FLOAT_TYPE */ | |
1846 | ||
1847 | DEFUN ("+", Fplus, Splus, 0, MANY, 0, | |
1848 | "Return sum of any number of arguments, which are numbers or markers.") | |
1849 | (nargs, args) | |
1850 | int nargs; | |
1851 | Lisp_Object *args; | |
1852 | { | |
1853 | return arith_driver (Aadd, nargs, args); | |
1854 | } | |
1855 | ||
1856 | DEFUN ("-", Fminus, Sminus, 0, MANY, 0, | |
1857 | "Negate number or subtract numbers or markers.\n\ | |
1858 | With one arg, negates it. With more than one arg,\n\ | |
1859 | subtracts all but the first from the first.") | |
1860 | (nargs, args) | |
1861 | int nargs; | |
1862 | Lisp_Object *args; | |
1863 | { | |
1864 | return arith_driver (Asub, nargs, args); | |
1865 | } | |
1866 | ||
1867 | DEFUN ("*", Ftimes, Stimes, 0, MANY, 0, | |
1868 | "Returns product of any number of arguments, which are numbers or markers.") | |
1869 | (nargs, args) | |
1870 | int nargs; | |
1871 | Lisp_Object *args; | |
1872 | { | |
1873 | return arith_driver (Amult, nargs, args); | |
1874 | } | |
1875 | ||
1876 | DEFUN ("/", Fquo, Squo, 2, MANY, 0, | |
1877 | "Returns first argument divided by all the remaining arguments.\n\ | |
1878 | The arguments must be numbers or markers.") | |
1879 | (nargs, args) | |
1880 | int nargs; | |
1881 | Lisp_Object *args; | |
1882 | { | |
1883 | return arith_driver (Adiv, nargs, args); | |
1884 | } | |
1885 | ||
1886 | DEFUN ("%", Frem, Srem, 2, 2, 0, | |
1887 | "Returns remainder of first arg divided by second.\n\ | |
aa29f9b9 | 1888 | Both must be integers or markers.") |
7921925c JB |
1889 | (num1, num2) |
1890 | register Lisp_Object num1, num2; | |
1891 | { | |
1892 | Lisp_Object val; | |
1893 | ||
7921925c JB |
1894 | CHECK_NUMBER_COERCE_MARKER (num1, 0); |
1895 | CHECK_NUMBER_COERCE_MARKER (num2, 1); | |
7921925c | 1896 | |
87fbf902 RS |
1897 | if (XFASTINT (num2) == 0) |
1898 | Fsignal (Qarith_error, Qnil); | |
1899 | ||
f187f1f7 | 1900 | XSETINT (val, XINT (num1) % XINT (num2)); |
7921925c JB |
1901 | return val; |
1902 | } | |
1903 | ||
1d66a5fa KH |
1904 | #ifndef HAVE_FMOD |
1905 | double | |
1906 | fmod (f1, f2) | |
1907 | double f1, f2; | |
1908 | { | |
1909 | #ifdef HAVE_DREM /* Some systems use this non-standard name. */ | |
1910 | return (drem (f1, f2)); | |
1911 | #else /* Other systems don't seem to have it at all. */ | |
1912 | return (f1 - f2 * floor (f1/f2)); | |
1913 | #endif | |
1914 | } | |
1915 | #endif /* ! HAVE_FMOD */ | |
1916 | ||
44fa9da5 PE |
1917 | DEFUN ("mod", Fmod, Smod, 2, 2, 0, |
1918 | "Returns X modulo Y.\n\ | |
1919 | The result falls between zero (inclusive) and Y (exclusive).\n\ | |
1920 | Both X and Y must be numbers or markers.") | |
1921 | (num1, num2) | |
1922 | register Lisp_Object num1, num2; | |
1923 | { | |
1924 | Lisp_Object val; | |
1925 | int i1, i2; | |
1926 | ||
1927 | #ifdef LISP_FLOAT_TYPE | |
1928 | CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (num1, 0); | |
1929 | CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (num2, 1); | |
1930 | ||
e9ebc175 | 1931 | if (FLOATP (num1) || FLOATP (num2)) |
44fa9da5 PE |
1932 | { |
1933 | double f1, f2; | |
1934 | ||
e9ebc175 KH |
1935 | f1 = FLOATP (num1) ? XFLOAT (num1)->data : XINT (num1); |
1936 | f2 = FLOATP (num2) ? XFLOAT (num2)->data : XINT (num2); | |
44fa9da5 PE |
1937 | if (f2 == 0) |
1938 | Fsignal (Qarith_error, Qnil); | |
1939 | ||
44fa9da5 | 1940 | f1 = fmod (f1, f2); |
44fa9da5 PE |
1941 | /* If the "remainder" comes out with the wrong sign, fix it. */ |
1942 | if ((f1 < 0) != (f2 < 0)) | |
1943 | f1 += f2; | |
1944 | return (make_float (f1)); | |
1945 | } | |
1946 | #else /* not LISP_FLOAT_TYPE */ | |
1947 | CHECK_NUMBER_COERCE_MARKER (num1, 0); | |
1948 | CHECK_NUMBER_COERCE_MARKER (num2, 1); | |
1949 | #endif /* not LISP_FLOAT_TYPE */ | |
1950 | ||
1951 | i1 = XINT (num1); | |
1952 | i2 = XINT (num2); | |
1953 | ||
1954 | if (i2 == 0) | |
1955 | Fsignal (Qarith_error, Qnil); | |
7403b5c8 | 1956 | |
44fa9da5 PE |
1957 | i1 %= i2; |
1958 | ||
1959 | /* If the "remainder" comes out with the wrong sign, fix it. */ | |
1960 | if ((i1 < 0) != (i2 < 0)) | |
1961 | i1 += i2; | |
1962 | ||
f187f1f7 | 1963 | XSETINT (val, i1); |
44fa9da5 PE |
1964 | return val; |
1965 | } | |
1966 | ||
7921925c JB |
1967 | DEFUN ("max", Fmax, Smax, 1, MANY, 0, |
1968 | "Return largest of all the arguments (which must be numbers or markers).\n\ | |
1969 | The value is always a number; markers are converted to numbers.") | |
1970 | (nargs, args) | |
1971 | int nargs; | |
1972 | Lisp_Object *args; | |
1973 | { | |
1974 | return arith_driver (Amax, nargs, args); | |
1975 | } | |
1976 | ||
1977 | DEFUN ("min", Fmin, Smin, 1, MANY, 0, | |
1978 | "Return smallest of all the arguments (which must be numbers or markers).\n\ | |
1979 | The value is always a number; markers are converted to numbers.") | |
1980 | (nargs, args) | |
1981 | int nargs; | |
1982 | Lisp_Object *args; | |
1983 | { | |
1984 | return arith_driver (Amin, nargs, args); | |
1985 | } | |
1986 | ||
1987 | DEFUN ("logand", Flogand, Slogand, 0, MANY, 0, | |
1988 | "Return bitwise-and of all the arguments.\n\ | |
1989 | Arguments may be integers, or markers converted to integers.") | |
1990 | (nargs, args) | |
1991 | int nargs; | |
1992 | Lisp_Object *args; | |
1993 | { | |
1994 | return arith_driver (Alogand, nargs, args); | |
1995 | } | |
1996 | ||
1997 | DEFUN ("logior", Flogior, Slogior, 0, MANY, 0, | |
1998 | "Return bitwise-or of all the arguments.\n\ | |
1999 | Arguments may be integers, or markers converted to integers.") | |
2000 | (nargs, args) | |
2001 | int nargs; | |
2002 | Lisp_Object *args; | |
2003 | { | |
2004 | return arith_driver (Alogior, nargs, args); | |
2005 | } | |
2006 | ||
2007 | DEFUN ("logxor", Flogxor, Slogxor, 0, MANY, 0, | |
2008 | "Return bitwise-exclusive-or of all the arguments.\n\ | |
2009 | Arguments may be integers, or markers converted to integers.") | |
2010 | (nargs, args) | |
2011 | int nargs; | |
2012 | Lisp_Object *args; | |
2013 | { | |
2014 | return arith_driver (Alogxor, nargs, args); | |
2015 | } | |
2016 | ||
2017 | DEFUN ("ash", Fash, Sash, 2, 2, 0, | |
2018 | "Return VALUE with its bits shifted left by COUNT.\n\ | |
2019 | If COUNT is negative, shifting is actually to the right.\n\ | |
2020 | In this case, the sign bit is duplicated.") | |
2021 | (num1, num2) | |
2022 | register Lisp_Object num1, num2; | |
2023 | { | |
2024 | register Lisp_Object val; | |
2025 | ||
2026 | CHECK_NUMBER (num1, 0); | |
2027 | CHECK_NUMBER (num2, 1); | |
2028 | ||
2029 | if (XINT (num2) > 0) | |
f187f1f7 | 2030 | XSETINT (val, XINT (num1) << XFASTINT (num2)); |
7921925c | 2031 | else |
f187f1f7 | 2032 | XSETINT (val, XINT (num1) >> -XINT (num2)); |
7921925c JB |
2033 | return val; |
2034 | } | |
2035 | ||
2036 | DEFUN ("lsh", Flsh, Slsh, 2, 2, 0, | |
2037 | "Return VALUE with its bits shifted left by COUNT.\n\ | |
2038 | If COUNT is negative, shifting is actually to the right.\n\ | |
2039 | In this case, zeros are shifted in on the left.") | |
2040 | (num1, num2) | |
2041 | register Lisp_Object num1, num2; | |
2042 | { | |
2043 | register Lisp_Object val; | |
2044 | ||
2045 | CHECK_NUMBER (num1, 0); | |
2046 | CHECK_NUMBER (num2, 1); | |
2047 | ||
2048 | if (XINT (num2) > 0) | |
702672da | 2049 | XSETINT (val, (EMACS_UINT) XUINT (num1) << XFASTINT (num2)); |
7921925c | 2050 | else |
702672da | 2051 | XSETINT (val, (EMACS_UINT) XUINT (num1) >> -XINT (num2)); |
7921925c JB |
2052 | return val; |
2053 | } | |
2054 | ||
2055 | DEFUN ("1+", Fadd1, Sadd1, 1, 1, 0, | |
2056 | "Return NUMBER plus one. NUMBER may be a number or a marker.\n\ | |
2057 | Markers are converted to integers.") | |
2058 | (num) | |
2059 | register Lisp_Object num; | |
2060 | { | |
2061 | #ifdef LISP_FLOAT_TYPE | |
2062 | CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (num, 0); | |
2063 | ||
e9ebc175 | 2064 | if (FLOATP (num)) |
7921925c JB |
2065 | return (make_float (1.0 + XFLOAT (num)->data)); |
2066 | #else | |
2067 | CHECK_NUMBER_COERCE_MARKER (num, 0); | |
2068 | #endif /* LISP_FLOAT_TYPE */ | |
2069 | ||
702672da | 2070 | XSETINT (num, XINT (num) + 1); |
7921925c JB |
2071 | return num; |
2072 | } | |
2073 | ||
2074 | DEFUN ("1-", Fsub1, Ssub1, 1, 1, 0, | |
2075 | "Return NUMBER minus one. NUMBER may be a number or a marker.\n\ | |
2076 | Markers are converted to integers.") | |
2077 | (num) | |
2078 | register Lisp_Object num; | |
2079 | { | |
2080 | #ifdef LISP_FLOAT_TYPE | |
2081 | CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (num, 0); | |
2082 | ||
e9ebc175 | 2083 | if (FLOATP (num)) |
7921925c JB |
2084 | return (make_float (-1.0 + XFLOAT (num)->data)); |
2085 | #else | |
2086 | CHECK_NUMBER_COERCE_MARKER (num, 0); | |
2087 | #endif /* LISP_FLOAT_TYPE */ | |
2088 | ||
702672da | 2089 | XSETINT (num, XINT (num) - 1); |
7921925c JB |
2090 | return num; |
2091 | } | |
2092 | ||
2093 | DEFUN ("lognot", Flognot, Slognot, 1, 1, 0, | |
2094 | "Return the bitwise complement of ARG. ARG must be an integer.") | |
2095 | (num) | |
2096 | register Lisp_Object num; | |
2097 | { | |
2098 | CHECK_NUMBER (num, 0); | |
702672da | 2099 | XSETINT (num, ~XINT (num)); |
7921925c JB |
2100 | return num; |
2101 | } | |
2102 | \f | |
2103 | void | |
2104 | syms_of_data () | |
2105 | { | |
6315e761 RS |
2106 | Lisp_Object error_tail, arith_tail; |
2107 | ||
7921925c JB |
2108 | Qquote = intern ("quote"); |
2109 | Qlambda = intern ("lambda"); | |
2110 | Qsubr = intern ("subr"); | |
2111 | Qerror_conditions = intern ("error-conditions"); | |
2112 | Qerror_message = intern ("error-message"); | |
2113 | Qtop_level = intern ("top-level"); | |
2114 | ||
2115 | Qerror = intern ("error"); | |
2116 | Qquit = intern ("quit"); | |
2117 | Qwrong_type_argument = intern ("wrong-type-argument"); | |
2118 | Qargs_out_of_range = intern ("args-out-of-range"); | |
2119 | Qvoid_function = intern ("void-function"); | |
ffd56f97 | 2120 | Qcyclic_function_indirection = intern ("cyclic-function-indirection"); |
7921925c JB |
2121 | Qvoid_variable = intern ("void-variable"); |
2122 | Qsetting_constant = intern ("setting-constant"); | |
2123 | Qinvalid_read_syntax = intern ("invalid-read-syntax"); | |
2124 | ||
2125 | Qinvalid_function = intern ("invalid-function"); | |
2126 | Qwrong_number_of_arguments = intern ("wrong-number-of-arguments"); | |
2127 | Qno_catch = intern ("no-catch"); | |
2128 | Qend_of_file = intern ("end-of-file"); | |
2129 | Qarith_error = intern ("arith-error"); | |
2130 | Qbeginning_of_buffer = intern ("beginning-of-buffer"); | |
2131 | Qend_of_buffer = intern ("end-of-buffer"); | |
2132 | Qbuffer_read_only = intern ("buffer-read-only"); | |
3b8819d6 | 2133 | Qmark_inactive = intern ("mark-inactive"); |
7921925c JB |
2134 | |
2135 | Qlistp = intern ("listp"); | |
2136 | Qconsp = intern ("consp"); | |
2137 | Qsymbolp = intern ("symbolp"); | |
2138 | Qintegerp = intern ("integerp"); | |
2139 | Qnatnump = intern ("natnump"); | |
8e86942b | 2140 | Qwholenump = intern ("wholenump"); |
7921925c JB |
2141 | Qstringp = intern ("stringp"); |
2142 | Qarrayp = intern ("arrayp"); | |
2143 | Qsequencep = intern ("sequencep"); | |
2144 | Qbufferp = intern ("bufferp"); | |
2145 | Qvectorp = intern ("vectorp"); | |
2146 | Qchar_or_string_p = intern ("char-or-string-p"); | |
2147 | Qmarkerp = intern ("markerp"); | |
07bd8472 | 2148 | Qbuffer_or_string_p = intern ("buffer-or-string-p"); |
7921925c JB |
2149 | Qinteger_or_marker_p = intern ("integer-or-marker-p"); |
2150 | Qboundp = intern ("boundp"); | |
2151 | Qfboundp = intern ("fboundp"); | |
2152 | ||
2153 | #ifdef LISP_FLOAT_TYPE | |
2154 | Qfloatp = intern ("floatp"); | |
2155 | Qnumberp = intern ("numberp"); | |
2156 | Qnumber_or_marker_p = intern ("number-or-marker-p"); | |
2157 | #endif /* LISP_FLOAT_TYPE */ | |
2158 | ||
2159 | Qcdr = intern ("cdr"); | |
2160 | ||
f845f2c9 | 2161 | /* Handle automatic advice activation */ |
ab297811 RS |
2162 | Qad_advice_info = intern ("ad-advice-info"); |
2163 | Qad_activate = intern ("ad-activate"); | |
f845f2c9 | 2164 | |
6315e761 RS |
2165 | error_tail = Fcons (Qerror, Qnil); |
2166 | ||
7921925c JB |
2167 | /* ERROR is used as a signaler for random errors for which nothing else is right */ |
2168 | ||
2169 | Fput (Qerror, Qerror_conditions, | |
6315e761 | 2170 | error_tail); |
7921925c JB |
2171 | Fput (Qerror, Qerror_message, |
2172 | build_string ("error")); | |
2173 | ||
2174 | Fput (Qquit, Qerror_conditions, | |
2175 | Fcons (Qquit, Qnil)); | |
2176 | Fput (Qquit, Qerror_message, | |
2177 | build_string ("Quit")); | |
2178 | ||
2179 | Fput (Qwrong_type_argument, Qerror_conditions, | |
6315e761 | 2180 | Fcons (Qwrong_type_argument, error_tail)); |
7921925c JB |
2181 | Fput (Qwrong_type_argument, Qerror_message, |
2182 | build_string ("Wrong type argument")); | |
2183 | ||
2184 | Fput (Qargs_out_of_range, Qerror_conditions, | |
6315e761 | 2185 | Fcons (Qargs_out_of_range, error_tail)); |
7921925c JB |
2186 | Fput (Qargs_out_of_range, Qerror_message, |
2187 | build_string ("Args out of range")); | |
2188 | ||
2189 | Fput (Qvoid_function, Qerror_conditions, | |
6315e761 | 2190 | Fcons (Qvoid_function, error_tail)); |
7921925c JB |
2191 | Fput (Qvoid_function, Qerror_message, |
2192 | build_string ("Symbol's function definition is void")); | |
2193 | ||
ffd56f97 | 2194 | Fput (Qcyclic_function_indirection, Qerror_conditions, |
6315e761 | 2195 | Fcons (Qcyclic_function_indirection, error_tail)); |
ffd56f97 JB |
2196 | Fput (Qcyclic_function_indirection, Qerror_message, |
2197 | build_string ("Symbol's chain of function indirections contains a loop")); | |
2198 | ||
7921925c | 2199 | Fput (Qvoid_variable, Qerror_conditions, |
6315e761 | 2200 | Fcons (Qvoid_variable, error_tail)); |
7921925c JB |
2201 | Fput (Qvoid_variable, Qerror_message, |
2202 | build_string ("Symbol's value as variable is void")); | |
2203 | ||
2204 | Fput (Qsetting_constant, Qerror_conditions, | |
6315e761 | 2205 | Fcons (Qsetting_constant, error_tail)); |
7921925c JB |
2206 | Fput (Qsetting_constant, Qerror_message, |
2207 | build_string ("Attempt to set a constant symbol")); | |
2208 | ||
2209 | Fput (Qinvalid_read_syntax, Qerror_conditions, | |
6315e761 | 2210 | Fcons (Qinvalid_read_syntax, error_tail)); |
7921925c JB |
2211 | Fput (Qinvalid_read_syntax, Qerror_message, |
2212 | build_string ("Invalid read syntax")); | |
2213 | ||
2214 | Fput (Qinvalid_function, Qerror_conditions, | |
6315e761 | 2215 | Fcons (Qinvalid_function, error_tail)); |
7921925c JB |
2216 | Fput (Qinvalid_function, Qerror_message, |
2217 | build_string ("Invalid function")); | |
2218 | ||
2219 | Fput (Qwrong_number_of_arguments, Qerror_conditions, | |
6315e761 | 2220 | Fcons (Qwrong_number_of_arguments, error_tail)); |
7921925c JB |
2221 | Fput (Qwrong_number_of_arguments, Qerror_message, |
2222 | build_string ("Wrong number of arguments")); | |
2223 | ||
2224 | Fput (Qno_catch, Qerror_conditions, | |
6315e761 | 2225 | Fcons (Qno_catch, error_tail)); |
7921925c JB |
2226 | Fput (Qno_catch, Qerror_message, |
2227 | build_string ("No catch for tag")); | |
2228 | ||
2229 | Fput (Qend_of_file, Qerror_conditions, | |
6315e761 | 2230 | Fcons (Qend_of_file, error_tail)); |
7921925c JB |
2231 | Fput (Qend_of_file, Qerror_message, |
2232 | build_string ("End of file during parsing")); | |
2233 | ||
6315e761 | 2234 | arith_tail = Fcons (Qarith_error, error_tail); |
7921925c | 2235 | Fput (Qarith_error, Qerror_conditions, |
6315e761 | 2236 | arith_tail); |
7921925c JB |
2237 | Fput (Qarith_error, Qerror_message, |
2238 | build_string ("Arithmetic error")); | |
2239 | ||
2240 | Fput (Qbeginning_of_buffer, Qerror_conditions, | |
6315e761 | 2241 | Fcons (Qbeginning_of_buffer, error_tail)); |
7921925c JB |
2242 | Fput (Qbeginning_of_buffer, Qerror_message, |
2243 | build_string ("Beginning of buffer")); | |
2244 | ||
2245 | Fput (Qend_of_buffer, Qerror_conditions, | |
6315e761 | 2246 | Fcons (Qend_of_buffer, error_tail)); |
7921925c JB |
2247 | Fput (Qend_of_buffer, Qerror_message, |
2248 | build_string ("End of buffer")); | |
2249 | ||
2250 | Fput (Qbuffer_read_only, Qerror_conditions, | |
6315e761 | 2251 | Fcons (Qbuffer_read_only, error_tail)); |
7921925c JB |
2252 | Fput (Qbuffer_read_only, Qerror_message, |
2253 | build_string ("Buffer is read-only")); | |
2254 | ||
6315e761 RS |
2255 | #ifdef LISP_FLOAT_TYPE |
2256 | Qrange_error = intern ("range-error"); | |
2257 | Qdomain_error = intern ("domain-error"); | |
2258 | Qsingularity_error = intern ("singularity-error"); | |
2259 | Qoverflow_error = intern ("overflow-error"); | |
2260 | Qunderflow_error = intern ("underflow-error"); | |
2261 | ||
2262 | Fput (Qdomain_error, Qerror_conditions, | |
2263 | Fcons (Qdomain_error, arith_tail)); | |
2264 | Fput (Qdomain_error, Qerror_message, | |
2265 | build_string ("Arithmetic domain error")); | |
2266 | ||
2267 | Fput (Qrange_error, Qerror_conditions, | |
2268 | Fcons (Qrange_error, arith_tail)); | |
2269 | Fput (Qrange_error, Qerror_message, | |
2270 | build_string ("Arithmetic range error")); | |
2271 | ||
2272 | Fput (Qsingularity_error, Qerror_conditions, | |
2273 | Fcons (Qsingularity_error, Fcons (Qdomain_error, arith_tail))); | |
2274 | Fput (Qsingularity_error, Qerror_message, | |
2275 | build_string ("Arithmetic singularity error")); | |
2276 | ||
2277 | Fput (Qoverflow_error, Qerror_conditions, | |
2278 | Fcons (Qoverflow_error, Fcons (Qdomain_error, arith_tail))); | |
2279 | Fput (Qoverflow_error, Qerror_message, | |
2280 | build_string ("Arithmetic overflow error")); | |
2281 | ||
2282 | Fput (Qunderflow_error, Qerror_conditions, | |
2283 | Fcons (Qunderflow_error, Fcons (Qdomain_error, arith_tail))); | |
2284 | Fput (Qunderflow_error, Qerror_message, | |
2285 | build_string ("Arithmetic underflow error")); | |
2286 | ||
2287 | staticpro (&Qrange_error); | |
2288 | staticpro (&Qdomain_error); | |
2289 | staticpro (&Qsingularity_error); | |
2290 | staticpro (&Qoverflow_error); | |
2291 | staticpro (&Qunderflow_error); | |
2292 | #endif /* LISP_FLOAT_TYPE */ | |
2293 | ||
7921925c JB |
2294 | staticpro (&Qnil); |
2295 | staticpro (&Qt); | |
2296 | staticpro (&Qquote); | |
2297 | staticpro (&Qlambda); | |
2298 | staticpro (&Qsubr); | |
2299 | staticpro (&Qunbound); | |
2300 | staticpro (&Qerror_conditions); | |
2301 | staticpro (&Qerror_message); | |
2302 | staticpro (&Qtop_level); | |
2303 | ||
2304 | staticpro (&Qerror); | |
2305 | staticpro (&Qquit); | |
2306 | staticpro (&Qwrong_type_argument); | |
2307 | staticpro (&Qargs_out_of_range); | |
2308 | staticpro (&Qvoid_function); | |
ffd56f97 | 2309 | staticpro (&Qcyclic_function_indirection); |
7921925c JB |
2310 | staticpro (&Qvoid_variable); |
2311 | staticpro (&Qsetting_constant); | |
2312 | staticpro (&Qinvalid_read_syntax); | |
2313 | staticpro (&Qwrong_number_of_arguments); | |
2314 | staticpro (&Qinvalid_function); | |
2315 | staticpro (&Qno_catch); | |
2316 | staticpro (&Qend_of_file); | |
2317 | staticpro (&Qarith_error); | |
2318 | staticpro (&Qbeginning_of_buffer); | |
2319 | staticpro (&Qend_of_buffer); | |
2320 | staticpro (&Qbuffer_read_only); | |
638b77e6 | 2321 | staticpro (&Qmark_inactive); |
7921925c JB |
2322 | |
2323 | staticpro (&Qlistp); | |
2324 | staticpro (&Qconsp); | |
2325 | staticpro (&Qsymbolp); | |
2326 | staticpro (&Qintegerp); | |
2327 | staticpro (&Qnatnump); | |
8e86942b | 2328 | staticpro (&Qwholenump); |
7921925c JB |
2329 | staticpro (&Qstringp); |
2330 | staticpro (&Qarrayp); | |
2331 | staticpro (&Qsequencep); | |
2332 | staticpro (&Qbufferp); | |
2333 | staticpro (&Qvectorp); | |
2334 | staticpro (&Qchar_or_string_p); | |
2335 | staticpro (&Qmarkerp); | |
07bd8472 | 2336 | staticpro (&Qbuffer_or_string_p); |
7921925c JB |
2337 | staticpro (&Qinteger_or_marker_p); |
2338 | #ifdef LISP_FLOAT_TYPE | |
2339 | staticpro (&Qfloatp); | |
464f8898 RS |
2340 | staticpro (&Qnumberp); |
2341 | staticpro (&Qnumber_or_marker_p); | |
7921925c JB |
2342 | #endif /* LISP_FLOAT_TYPE */ |
2343 | ||
2344 | staticpro (&Qboundp); | |
2345 | staticpro (&Qfboundp); | |
2346 | staticpro (&Qcdr); | |
ab297811 RS |
2347 | staticpro (&Qad_advice_info); |
2348 | staticpro (&Qad_activate); | |
7921925c | 2349 | |
39bcc759 RS |
2350 | /* Types that type-of returns. */ |
2351 | Qinteger = intern ("integer"); | |
2352 | Qsymbol = intern ("symbol"); | |
2353 | Qstring = intern ("string"); | |
2354 | Qcons = intern ("cons"); | |
2355 | Qmarker = intern ("marker"); | |
2356 | Qoverlay = intern ("overlay"); | |
2357 | Qfloat = intern ("float"); | |
2358 | Qwindow_configuration = intern ("window-configuration"); | |
2359 | Qprocess = intern ("process"); | |
2360 | Qwindow = intern ("window"); | |
2361 | /* Qsubr = intern ("subr"); */ | |
2362 | Qcompiled_function = intern ("compiled-function"); | |
2363 | Qbuffer = intern ("buffer"); | |
2364 | Qframe = intern ("frame"); | |
2365 | Qvector = intern ("vector"); | |
2366 | ||
2367 | staticpro (&Qinteger); | |
2368 | staticpro (&Qsymbol); | |
2369 | staticpro (&Qstring); | |
2370 | staticpro (&Qcons); | |
2371 | staticpro (&Qmarker); | |
2372 | staticpro (&Qoverlay); | |
2373 | staticpro (&Qfloat); | |
2374 | staticpro (&Qwindow_configuration); | |
2375 | staticpro (&Qprocess); | |
2376 | staticpro (&Qwindow); | |
2377 | /* staticpro (&Qsubr); */ | |
2378 | staticpro (&Qcompiled_function); | |
2379 | staticpro (&Qbuffer); | |
2380 | staticpro (&Qframe); | |
2381 | staticpro (&Qvector); | |
2382 | ||
7921925c JB |
2383 | defsubr (&Seq); |
2384 | defsubr (&Snull); | |
39bcc759 | 2385 | defsubr (&Stype_of); |
7921925c JB |
2386 | defsubr (&Slistp); |
2387 | defsubr (&Snlistp); | |
2388 | defsubr (&Sconsp); | |
2389 | defsubr (&Satom); | |
2390 | defsubr (&Sintegerp); | |
464f8898 | 2391 | defsubr (&Sinteger_or_marker_p); |
7921925c JB |
2392 | defsubr (&Snumberp); |
2393 | defsubr (&Snumber_or_marker_p); | |
464f8898 RS |
2394 | #ifdef LISP_FLOAT_TYPE |
2395 | defsubr (&Sfloatp); | |
7921925c JB |
2396 | #endif /* LISP_FLOAT_TYPE */ |
2397 | defsubr (&Snatnump); | |
2398 | defsubr (&Ssymbolp); | |
2399 | defsubr (&Sstringp); | |
2400 | defsubr (&Svectorp); | |
2401 | defsubr (&Sarrayp); | |
2402 | defsubr (&Ssequencep); | |
2403 | defsubr (&Sbufferp); | |
2404 | defsubr (&Smarkerp); | |
7921925c | 2405 | defsubr (&Ssubrp); |
dbc4e1c1 | 2406 | defsubr (&Sbyte_code_function_p); |
7921925c JB |
2407 | defsubr (&Schar_or_string_p); |
2408 | defsubr (&Scar); | |
2409 | defsubr (&Scdr); | |
2410 | defsubr (&Scar_safe); | |
2411 | defsubr (&Scdr_safe); | |
2412 | defsubr (&Ssetcar); | |
2413 | defsubr (&Ssetcdr); | |
2414 | defsubr (&Ssymbol_function); | |
ffd56f97 | 2415 | defsubr (&Sindirect_function); |
7921925c JB |
2416 | defsubr (&Ssymbol_plist); |
2417 | defsubr (&Ssymbol_name); | |
2418 | defsubr (&Smakunbound); | |
2419 | defsubr (&Sfmakunbound); | |
2420 | defsubr (&Sboundp); | |
2421 | defsubr (&Sfboundp); | |
2422 | defsubr (&Sfset); | |
80df38a2 | 2423 | defsubr (&Sdefalias); |
d9bcdb34 | 2424 | defsubr (&Sdefine_function); |
7921925c JB |
2425 | defsubr (&Ssetplist); |
2426 | defsubr (&Ssymbol_value); | |
2427 | defsubr (&Sset); | |
2428 | defsubr (&Sdefault_boundp); | |
2429 | defsubr (&Sdefault_value); | |
2430 | defsubr (&Sset_default); | |
2431 | defsubr (&Ssetq_default); | |
2432 | defsubr (&Smake_variable_buffer_local); | |
2433 | defsubr (&Smake_local_variable); | |
2434 | defsubr (&Skill_local_variable); | |
62476adc | 2435 | defsubr (&Slocal_variable_p); |
7921925c JB |
2436 | defsubr (&Saref); |
2437 | defsubr (&Saset); | |
f2980264 | 2438 | defsubr (&Snumber_to_string); |
25e40a4b | 2439 | defsubr (&Sstring_to_number); |
7921925c JB |
2440 | defsubr (&Seqlsign); |
2441 | defsubr (&Slss); | |
2442 | defsubr (&Sgtr); | |
2443 | defsubr (&Sleq); | |
2444 | defsubr (&Sgeq); | |
2445 | defsubr (&Sneq); | |
2446 | defsubr (&Szerop); | |
2447 | defsubr (&Splus); | |
2448 | defsubr (&Sminus); | |
2449 | defsubr (&Stimes); | |
2450 | defsubr (&Squo); | |
2451 | defsubr (&Srem); | |
44fa9da5 | 2452 | defsubr (&Smod); |
7921925c JB |
2453 | defsubr (&Smax); |
2454 | defsubr (&Smin); | |
2455 | defsubr (&Slogand); | |
2456 | defsubr (&Slogior); | |
2457 | defsubr (&Slogxor); | |
2458 | defsubr (&Slsh); | |
2459 | defsubr (&Sash); | |
2460 | defsubr (&Sadd1); | |
2461 | defsubr (&Ssub1); | |
2462 | defsubr (&Slognot); | |
8e86942b | 2463 | |
c80bd143 | 2464 | XSYMBOL (Qwholenump)->function = XSYMBOL (Qnatnump)->function; |
7921925c JB |
2465 | } |
2466 | ||
a33ef3ab | 2467 | SIGTYPE |
7921925c JB |
2468 | arith_error (signo) |
2469 | int signo; | |
2470 | { | |
2471 | #ifdef USG | |
2472 | /* USG systems forget handlers when they are used; | |
2473 | must reestablish each time */ | |
2474 | signal (signo, arith_error); | |
2475 | #endif /* USG */ | |
2476 | #ifdef VMS | |
2477 | /* VMS systems are like USG. */ | |
2478 | signal (signo, arith_error); | |
2479 | #endif /* VMS */ | |
2480 | #ifdef BSD4_1 | |
2481 | sigrelse (SIGFPE); | |
2482 | #else /* not BSD4_1 */ | |
e065a56e | 2483 | sigsetmask (SIGEMPTYMASK); |
7921925c JB |
2484 | #endif /* not BSD4_1 */ |
2485 | ||
2486 | Fsignal (Qarith_error, Qnil); | |
2487 | } | |
2488 | ||
2489 | init_data () | |
2490 | { | |
2491 | /* Don't do this if just dumping out. | |
2492 | We don't want to call `signal' in this case | |
2493 | so that we don't have trouble with dumping | |
2494 | signal-delivering routines in an inconsistent state. */ | |
2495 | #ifndef CANNOT_DUMP | |
2496 | if (!initialized) | |
2497 | return; | |
2498 | #endif /* CANNOT_DUMP */ | |
2499 | signal (SIGFPE, arith_error); | |
7403b5c8 | 2500 | |
7921925c JB |
2501 | #ifdef uts |
2502 | signal (SIGEMT, arith_error); | |
2503 | #endif /* uts */ | |
2504 | } |