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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" | |
077d751f | 29 | #include "keyboard.h" |
7921925c JB |
30 | #endif |
31 | ||
a44804c2 | 32 | #include "syssignal.h" |
fb8e9847 | 33 | |
aaf45c7b | 34 | #ifdef MSDOS |
6ba93f9d | 35 | /* These are redefined (correctly, but differently) in values.h. */ |
aaf45c7b RS |
36 | #undef INTBITS |
37 | #undef LONGBITS | |
38 | #undef SHORTBITS | |
39 | #endif | |
aaf45c7b | 40 | |
7921925c | 41 | #ifdef LISP_FLOAT_TYPE |
defa77b5 | 42 | |
93b91208 JB |
43 | #ifdef STDC_HEADERS |
44 | #include <stdlib.h> | |
45 | #endif | |
defa77b5 RS |
46 | |
47 | /* Work around a problem that happens because math.h on hpux 7 | |
48 | defines two static variables--which, in Emacs, are not really static, | |
49 | because `static' is defined as nothing. The problem is that they are | |
50 | here, in floatfns.c, and in lread.c. | |
51 | These macros prevent the name conflict. */ | |
52 | #if defined (HPUX) && !defined (HPUX8) | |
53 | #define _MAXLDBL data_c_maxldbl | |
54 | #define _NMAXLDBL data_c_nmaxldbl | |
55 | #endif | |
56 | ||
7921925c JB |
57 | #include <math.h> |
58 | #endif /* LISP_FLOAT_TYPE */ | |
59 | ||
024ec58f BF |
60 | #if !defined (atof) |
61 | extern double atof (); | |
62 | #endif /* !atof */ | |
63 | ||
7921925c JB |
64 | Lisp_Object Qnil, Qt, Qquote, Qlambda, Qsubr, Qunbound; |
65 | Lisp_Object Qerror_conditions, Qerror_message, Qtop_level; | |
66 | Lisp_Object Qerror, Qquit, Qwrong_type_argument, Qargs_out_of_range; | |
ffd56f97 | 67 | Lisp_Object Qvoid_variable, Qvoid_function, Qcyclic_function_indirection; |
7921925c JB |
68 | Lisp_Object Qsetting_constant, Qinvalid_read_syntax; |
69 | Lisp_Object Qinvalid_function, Qwrong_number_of_arguments, Qno_catch; | |
3b8819d6 | 70 | Lisp_Object Qend_of_file, Qarith_error, Qmark_inactive; |
7921925c | 71 | Lisp_Object Qbeginning_of_buffer, Qend_of_buffer, Qbuffer_read_only; |
8e86942b | 72 | Lisp_Object Qintegerp, Qnatnump, Qwholenump, Qsymbolp, Qlistp, Qconsp; |
7921925c JB |
73 | Lisp_Object Qstringp, Qarrayp, Qsequencep, Qbufferp; |
74 | Lisp_Object Qchar_or_string_p, Qmarkerp, Qinteger_or_marker_p, Qvectorp; | |
07bd8472 | 75 | Lisp_Object Qbuffer_or_string_p; |
7921925c | 76 | Lisp_Object Qboundp, Qfboundp; |
39bcc759 | 77 | |
7921925c | 78 | Lisp_Object Qcdr; |
ab297811 | 79 | Lisp_Object Qad_advice_info, Qad_activate; |
7921925c | 80 | |
6315e761 RS |
81 | Lisp_Object Qrange_error, Qdomain_error, Qsingularity_error; |
82 | Lisp_Object Qoverflow_error, Qunderflow_error; | |
83 | ||
7921925c | 84 | #ifdef LISP_FLOAT_TYPE |
464f8898 | 85 | Lisp_Object Qfloatp; |
7921925c JB |
86 | Lisp_Object Qnumberp, Qnumber_or_marker_p; |
87 | #endif | |
88 | ||
39bcc759 RS |
89 | static Lisp_Object Qinteger, Qsymbol, Qstring, Qcons, Qmarker, Qoverlay; |
90 | static Lisp_Object Qfloat, Qwindow_configuration, Qprocess, Qwindow; | |
91 | static Lisp_Object Qcompiled_function, Qbuffer, Qframe, Qvector; | |
92 | ||
7921925c JB |
93 | static Lisp_Object swap_in_symval_forwarding (); |
94 | ||
95 | Lisp_Object | |
96 | wrong_type_argument (predicate, value) | |
97 | register Lisp_Object predicate, value; | |
98 | { | |
99 | register Lisp_Object tem; | |
100 | do | |
101 | { | |
102 | if (!EQ (Vmocklisp_arguments, Qt)) | |
103 | { | |
e9ebc175 | 104 | if (STRINGP (value) && |
7921925c | 105 | (EQ (predicate, Qintegerp) || EQ (predicate, Qinteger_or_marker_p))) |
25e40a4b | 106 | return Fstring_to_number (value); |
e9ebc175 | 107 | if (INTEGERP (value) && EQ (predicate, Qstringp)) |
f2980264 | 108 | return Fnumber_to_string (value); |
7921925c | 109 | } |
e1351ff7 RS |
110 | |
111 | /* If VALUE is not even a valid Lisp object, abort here | |
112 | where we can get a backtrace showing where it came from. */ | |
04be3993 | 113 | if ((unsigned int) XGCTYPE (value) >= Lisp_Type_Limit) |
e1351ff7 RS |
114 | abort (); |
115 | ||
7921925c JB |
116 | value = Fsignal (Qwrong_type_argument, Fcons (predicate, Fcons (value, Qnil))); |
117 | tem = call1 (predicate, value); | |
118 | } | |
a33ef3ab | 119 | while (NILP (tem)); |
7921925c JB |
120 | return value; |
121 | } | |
122 | ||
123 | pure_write_error () | |
124 | { | |
125 | error ("Attempt to modify read-only object"); | |
126 | } | |
127 | ||
128 | void | |
129 | args_out_of_range (a1, a2) | |
130 | Lisp_Object a1, a2; | |
131 | { | |
132 | while (1) | |
133 | Fsignal (Qargs_out_of_range, Fcons (a1, Fcons (a2, Qnil))); | |
134 | } | |
135 | ||
136 | void | |
137 | args_out_of_range_3 (a1, a2, a3) | |
138 | Lisp_Object a1, a2, a3; | |
139 | { | |
140 | while (1) | |
141 | Fsignal (Qargs_out_of_range, Fcons (a1, Fcons (a2, Fcons (a3, Qnil)))); | |
142 | } | |
143 | ||
144 | Lisp_Object | |
145 | make_number (num) | |
146 | int num; | |
147 | { | |
148 | register Lisp_Object val; | |
f187f1f7 | 149 | XSETINT (val, num); |
7921925c JB |
150 | return val; |
151 | } | |
152 | ||
153 | /* On some machines, XINT needs a temporary location. | |
154 | Here it is, in case it is needed. */ | |
155 | ||
156 | int sign_extend_temp; | |
157 | ||
158 | /* On a few machines, XINT can only be done by calling this. */ | |
159 | ||
160 | int | |
161 | sign_extend_lisp_int (num) | |
a0ed95ea | 162 | EMACS_INT num; |
7921925c | 163 | { |
a0ed95ea RS |
164 | if (num & (((EMACS_INT) 1) << (VALBITS - 1))) |
165 | return num | (((EMACS_INT) (-1)) << VALBITS); | |
7921925c | 166 | else |
a0ed95ea | 167 | return num & ((((EMACS_INT) 1) << VALBITS) - 1); |
7921925c JB |
168 | } |
169 | \f | |
170 | /* Data type predicates */ | |
171 | ||
172 | DEFUN ("eq", Feq, Seq, 2, 2, 0, | |
173 | "T if the two args are the same Lisp object.") | |
174 | (obj1, obj2) | |
175 | Lisp_Object obj1, obj2; | |
176 | { | |
177 | if (EQ (obj1, obj2)) | |
178 | return Qt; | |
179 | return Qnil; | |
180 | } | |
181 | ||
182 | DEFUN ("null", Fnull, Snull, 1, 1, 0, "T if OBJECT is nil.") | |
39bcc759 RS |
183 | (object) |
184 | Lisp_Object object; | |
7921925c | 185 | { |
39bcc759 | 186 | if (NILP (object)) |
7921925c JB |
187 | return Qt; |
188 | return Qnil; | |
189 | } | |
190 | ||
39bcc759 RS |
191 | DEFUN ("type-of", Ftype_of, Stype_of, 1, 1, 0, |
192 | "Return a symbol representing the type of OBJECT.\n\ | |
193 | The symbol returned names the object's basic type;\n\ | |
194 | for example, (type-of 1) returns `integer'.") | |
195 | (object) | |
196 | Lisp_Object object; | |
197 | { | |
198 | switch (XGCTYPE (object)) | |
199 | { | |
200 | case Lisp_Int: | |
201 | return Qinteger; | |
202 | ||
203 | case Lisp_Symbol: | |
204 | return Qsymbol; | |
205 | ||
206 | case Lisp_String: | |
207 | return Qstring; | |
208 | ||
209 | case Lisp_Cons: | |
210 | return Qcons; | |
211 | ||
212 | case Lisp_Misc: | |
324a6eef | 213 | switch (XMISCTYPE (object)) |
39bcc759 RS |
214 | { |
215 | case Lisp_Misc_Marker: | |
216 | return Qmarker; | |
217 | case Lisp_Misc_Overlay: | |
218 | return Qoverlay; | |
219 | case Lisp_Misc_Float: | |
220 | return Qfloat; | |
221 | } | |
222 | abort (); | |
223 | ||
224 | case Lisp_Vectorlike: | |
225 | if (GC_WINDOW_CONFIGURATIONP (object)) | |
226 | return Qwindow_configuration; | |
227 | if (GC_PROCESSP (object)) | |
228 | return Qprocess; | |
229 | if (GC_WINDOWP (object)) | |
230 | return Qwindow; | |
231 | if (GC_SUBRP (object)) | |
232 | return Qsubr; | |
233 | if (GC_COMPILEDP (object)) | |
234 | return Qcompiled_function; | |
235 | if (GC_BUFFERP (object)) | |
236 | return Qbuffer; | |
237 | ||
238 | #ifdef MULTI_FRAME | |
239 | if (GC_FRAMEP (object)) | |
240 | return Qframe; | |
241 | #endif | |
242 | return Qvector; | |
243 | ||
244 | #ifdef LISP_FLOAT_TYPE | |
245 | case Lisp_Float: | |
246 | return Qfloat; | |
247 | #endif | |
248 | ||
249 | default: | |
250 | abort (); | |
251 | } | |
252 | } | |
253 | ||
7921925c | 254 | DEFUN ("consp", Fconsp, Sconsp, 1, 1, 0, "T if OBJECT is a cons cell.") |
39bcc759 RS |
255 | (object) |
256 | Lisp_Object object; | |
7921925c | 257 | { |
39bcc759 | 258 | if (CONSP (object)) |
7921925c JB |
259 | return Qt; |
260 | return Qnil; | |
261 | } | |
262 | ||
263 | DEFUN ("atom", Fatom, Satom, 1, 1, 0, "T if OBJECT is not a cons cell. This includes nil.") | |
39bcc759 RS |
264 | (object) |
265 | Lisp_Object object; | |
7921925c | 266 | { |
39bcc759 | 267 | if (CONSP (object)) |
7921925c JB |
268 | return Qnil; |
269 | return Qt; | |
270 | } | |
271 | ||
272 | DEFUN ("listp", Flistp, Slistp, 1, 1, 0, "T if OBJECT is a list. This includes nil.") | |
39bcc759 RS |
273 | (object) |
274 | Lisp_Object object; | |
7921925c | 275 | { |
39bcc759 | 276 | if (CONSP (object) || NILP (object)) |
7921925c JB |
277 | return Qt; |
278 | return Qnil; | |
279 | } | |
280 | ||
281 | DEFUN ("nlistp", Fnlistp, Snlistp, 1, 1, 0, "T if OBJECT is not a list. Lists include nil.") | |
39bcc759 RS |
282 | (object) |
283 | Lisp_Object object; | |
7921925c | 284 | { |
39bcc759 | 285 | if (CONSP (object) || NILP (object)) |
7921925c JB |
286 | return Qnil; |
287 | return Qt; | |
288 | } | |
289 | \f | |
290 | DEFUN ("symbolp", Fsymbolp, Ssymbolp, 1, 1, 0, "T if OBJECT is a symbol.") | |
39bcc759 RS |
291 | (object) |
292 | Lisp_Object object; | |
7921925c | 293 | { |
39bcc759 | 294 | if (SYMBOLP (object)) |
7921925c JB |
295 | return Qt; |
296 | return Qnil; | |
297 | } | |
298 | ||
299 | DEFUN ("vectorp", Fvectorp, Svectorp, 1, 1, 0, "T if OBJECT is a vector.") | |
39bcc759 RS |
300 | (object) |
301 | Lisp_Object object; | |
7921925c | 302 | { |
39bcc759 | 303 | if (VECTORP (object)) |
7921925c JB |
304 | return Qt; |
305 | return Qnil; | |
306 | } | |
307 | ||
308 | DEFUN ("stringp", Fstringp, Sstringp, 1, 1, 0, "T if OBJECT is a string.") | |
39bcc759 RS |
309 | (object) |
310 | Lisp_Object object; | |
7921925c | 311 | { |
39bcc759 | 312 | if (STRINGP (object)) |
7921925c JB |
313 | return Qt; |
314 | return Qnil; | |
315 | } | |
316 | ||
317 | DEFUN ("arrayp", Farrayp, Sarrayp, 1, 1, 0, "T if OBJECT is an array (string or vector).") | |
39bcc759 RS |
318 | (object) |
319 | Lisp_Object object; | |
7921925c | 320 | { |
39bcc759 | 321 | if (VECTORP (object) || STRINGP (object)) |
7921925c JB |
322 | return Qt; |
323 | return Qnil; | |
324 | } | |
325 | ||
326 | DEFUN ("sequencep", Fsequencep, Ssequencep, 1, 1, 0, | |
327 | "T if OBJECT is a sequence (list or array).") | |
39bcc759 RS |
328 | (object) |
329 | register Lisp_Object object; | |
7921925c | 330 | { |
39bcc759 | 331 | if (CONSP (object) || NILP (object) || VECTORP (object) || STRINGP (object)) |
7921925c JB |
332 | return Qt; |
333 | return Qnil; | |
334 | } | |
335 | ||
336 | DEFUN ("bufferp", Fbufferp, Sbufferp, 1, 1, 0, "T if OBJECT is an editor buffer.") | |
39bcc759 RS |
337 | (object) |
338 | Lisp_Object object; | |
7921925c | 339 | { |
39bcc759 | 340 | if (BUFFERP (object)) |
7921925c JB |
341 | return Qt; |
342 | return Qnil; | |
343 | } | |
344 | ||
345 | DEFUN ("markerp", Fmarkerp, Smarkerp, 1, 1, 0, "T if OBJECT is a marker (editor pointer).") | |
39bcc759 RS |
346 | (object) |
347 | Lisp_Object object; | |
7921925c | 348 | { |
39bcc759 | 349 | if (MARKERP (object)) |
7921925c JB |
350 | return Qt; |
351 | return Qnil; | |
352 | } | |
353 | ||
7921925c | 354 | DEFUN ("subrp", Fsubrp, Ssubrp, 1, 1, 0, "T if OBJECT is a built-in function.") |
39bcc759 RS |
355 | (object) |
356 | Lisp_Object object; | |
7921925c | 357 | { |
39bcc759 | 358 | if (SUBRP (object)) |
7921925c JB |
359 | return Qt; |
360 | return Qnil; | |
361 | } | |
362 | ||
dbc4e1c1 JB |
363 | DEFUN ("byte-code-function-p", Fbyte_code_function_p, Sbyte_code_function_p, |
364 | 1, 1, 0, "T if OBJECT is a byte-compiled function object.") | |
39bcc759 RS |
365 | (object) |
366 | Lisp_Object object; | |
7921925c | 367 | { |
39bcc759 | 368 | if (COMPILEDP (object)) |
7921925c JB |
369 | return Qt; |
370 | return Qnil; | |
371 | } | |
372 | ||
0321d75c KH |
373 | DEFUN ("char-or-string-p", Fchar_or_string_p, Schar_or_string_p, 1, 1, 0, |
374 | "T if OBJECT is a character (an integer) or a string.") | |
39bcc759 RS |
375 | (object) |
376 | register Lisp_Object object; | |
7921925c | 377 | { |
39bcc759 | 378 | if (INTEGERP (object) || STRINGP (object)) |
7921925c JB |
379 | return Qt; |
380 | return Qnil; | |
381 | } | |
382 | \f | |
0321d75c | 383 | DEFUN ("integerp", Fintegerp, Sintegerp, 1, 1, 0, "T if OBJECT is an integer.") |
39bcc759 RS |
384 | (object) |
385 | Lisp_Object object; | |
7921925c | 386 | { |
39bcc759 | 387 | if (INTEGERP (object)) |
7921925c JB |
388 | return Qt; |
389 | return Qnil; | |
390 | } | |
391 | ||
464f8898 RS |
392 | DEFUN ("integer-or-marker-p", Finteger_or_marker_p, Sinteger_or_marker_p, 1, 1, 0, |
393 | "T if OBJECT is an integer or a marker (editor pointer).") | |
39bcc759 RS |
394 | (object) |
395 | register Lisp_Object object; | |
7921925c | 396 | { |
39bcc759 | 397 | if (MARKERP (object) || INTEGERP (object)) |
7921925c JB |
398 | return Qt; |
399 | return Qnil; | |
400 | } | |
401 | ||
0321d75c KH |
402 | DEFUN ("natnump", Fnatnump, Snatnump, 1, 1, 0, |
403 | "T if OBJECT is a nonnegative integer.") | |
39bcc759 RS |
404 | (object) |
405 | Lisp_Object object; | |
7921925c | 406 | { |
39bcc759 | 407 | if (NATNUMP (object)) |
7921925c JB |
408 | return Qt; |
409 | return Qnil; | |
410 | } | |
411 | ||
412 | DEFUN ("numberp", Fnumberp, Snumberp, 1, 1, 0, | |
413 | "T if OBJECT is a number (floating point or integer).") | |
39bcc759 RS |
414 | (object) |
415 | Lisp_Object object; | |
7921925c | 416 | { |
39bcc759 | 417 | if (NUMBERP (object)) |
7921925c | 418 | return Qt; |
dbc4e1c1 JB |
419 | else |
420 | return Qnil; | |
7921925c JB |
421 | } |
422 | ||
423 | DEFUN ("number-or-marker-p", Fnumber_or_marker_p, | |
424 | Snumber_or_marker_p, 1, 1, 0, | |
425 | "T if OBJECT is a number or a marker.") | |
39bcc759 RS |
426 | (object) |
427 | Lisp_Object object; | |
7921925c | 428 | { |
39bcc759 | 429 | if (NUMBERP (object) || MARKERP (object)) |
7921925c JB |
430 | return Qt; |
431 | return Qnil; | |
432 | } | |
464f8898 RS |
433 | |
434 | #ifdef LISP_FLOAT_TYPE | |
435 | DEFUN ("floatp", Ffloatp, Sfloatp, 1, 1, 0, | |
436 | "T if OBJECT is a floating point number.") | |
39bcc759 RS |
437 | (object) |
438 | Lisp_Object object; | |
464f8898 | 439 | { |
39bcc759 | 440 | if (FLOATP (object)) |
464f8898 RS |
441 | return Qt; |
442 | return Qnil; | |
443 | } | |
7921925c JB |
444 | #endif /* LISP_FLOAT_TYPE */ |
445 | \f | |
446 | /* Extract and set components of lists */ | |
447 | ||
448 | DEFUN ("car", Fcar, Scar, 1, 1, 0, | |
e1960a18 | 449 | "Return the car of LIST. If arg is nil, return nil.\n\ |
7921925c JB |
450 | Error if arg is not nil and not a cons cell. See also `car-safe'.") |
451 | (list) | |
452 | register Lisp_Object list; | |
453 | { | |
454 | while (1) | |
455 | { | |
e9ebc175 | 456 | if (CONSP (list)) |
7921925c JB |
457 | return XCONS (list)->car; |
458 | else if (EQ (list, Qnil)) | |
459 | return Qnil; | |
460 | else | |
461 | list = wrong_type_argument (Qlistp, list); | |
462 | } | |
463 | } | |
464 | ||
465 | DEFUN ("car-safe", Fcar_safe, Scar_safe, 1, 1, 0, | |
466 | "Return the car of OBJECT if it is a cons cell, or else nil.") | |
467 | (object) | |
468 | Lisp_Object object; | |
469 | { | |
e9ebc175 | 470 | if (CONSP (object)) |
7921925c JB |
471 | return XCONS (object)->car; |
472 | else | |
473 | return Qnil; | |
474 | } | |
475 | ||
476 | DEFUN ("cdr", Fcdr, Scdr, 1, 1, 0, | |
e1960a18 | 477 | "Return the cdr of LIST. If arg is nil, return nil.\n\ |
7921925c JB |
478 | Error if arg is not nil and not a cons cell. See also `cdr-safe'.") |
479 | ||
480 | (list) | |
481 | register Lisp_Object list; | |
482 | { | |
483 | while (1) | |
484 | { | |
e9ebc175 | 485 | if (CONSP (list)) |
7921925c JB |
486 | return XCONS (list)->cdr; |
487 | else if (EQ (list, Qnil)) | |
488 | return Qnil; | |
489 | else | |
490 | list = wrong_type_argument (Qlistp, list); | |
491 | } | |
492 | } | |
493 | ||
494 | DEFUN ("cdr-safe", Fcdr_safe, Scdr_safe, 1, 1, 0, | |
b7abc8fa | 495 | "Return the cdr of OBJECT if it is a cons cell, or else nil.") |
7921925c JB |
496 | (object) |
497 | Lisp_Object object; | |
498 | { | |
e9ebc175 | 499 | if (CONSP (object)) |
7921925c JB |
500 | return XCONS (object)->cdr; |
501 | else | |
502 | return Qnil; | |
503 | } | |
504 | ||
505 | DEFUN ("setcar", Fsetcar, Ssetcar, 2, 2, 0, | |
e1960a18 | 506 | "Set the car of CELL to be NEWCAR. Returns NEWCAR.") |
7921925c JB |
507 | (cell, newcar) |
508 | register Lisp_Object cell, newcar; | |
509 | { | |
e9ebc175 | 510 | if (!CONSP (cell)) |
7921925c JB |
511 | cell = wrong_type_argument (Qconsp, cell); |
512 | ||
513 | CHECK_IMPURE (cell); | |
514 | XCONS (cell)->car = newcar; | |
515 | return newcar; | |
516 | } | |
517 | ||
518 | DEFUN ("setcdr", Fsetcdr, Ssetcdr, 2, 2, 0, | |
e1960a18 | 519 | "Set the cdr of CELL to be NEWCDR. Returns NEWCDR.") |
7921925c JB |
520 | (cell, newcdr) |
521 | register Lisp_Object cell, newcdr; | |
522 | { | |
e9ebc175 | 523 | if (!CONSP (cell)) |
7921925c JB |
524 | cell = wrong_type_argument (Qconsp, cell); |
525 | ||
526 | CHECK_IMPURE (cell); | |
527 | XCONS (cell)->cdr = newcdr; | |
528 | return newcdr; | |
529 | } | |
530 | \f | |
531 | /* Extract and set components of symbols */ | |
532 | ||
533 | DEFUN ("boundp", Fboundp, Sboundp, 1, 1, 0, "T if SYMBOL's value is not void.") | |
534 | (sym) | |
535 | register Lisp_Object sym; | |
536 | { | |
537 | Lisp_Object valcontents; | |
538 | CHECK_SYMBOL (sym, 0); | |
539 | ||
540 | valcontents = XSYMBOL (sym)->value; | |
541 | ||
aabf6bec KH |
542 | if (BUFFER_LOCAL_VALUEP (valcontents) |
543 | || SOME_BUFFER_LOCAL_VALUEP (valcontents)) | |
536b772a | 544 | valcontents = swap_in_symval_forwarding (sym, valcontents); |
7921925c | 545 | |
1bfcade3 | 546 | return (EQ (valcontents, Qunbound) ? Qnil : Qt); |
7921925c JB |
547 | } |
548 | ||
549 | DEFUN ("fboundp", Ffboundp, Sfboundp, 1, 1, 0, "T if SYMBOL's function definition is not void.") | |
550 | (sym) | |
551 | register Lisp_Object sym; | |
552 | { | |
553 | CHECK_SYMBOL (sym, 0); | |
1bfcade3 | 554 | return (EQ (XSYMBOL (sym)->function, Qunbound) ? Qnil : Qt); |
7921925c JB |
555 | } |
556 | ||
557 | DEFUN ("makunbound", Fmakunbound, Smakunbound, 1, 1, 0, "Make SYMBOL's value be void.") | |
558 | (sym) | |
559 | register Lisp_Object sym; | |
560 | { | |
561 | CHECK_SYMBOL (sym, 0); | |
a33ef3ab | 562 | if (NILP (sym) || EQ (sym, Qt)) |
7921925c JB |
563 | return Fsignal (Qsetting_constant, Fcons (sym, Qnil)); |
564 | Fset (sym, Qunbound); | |
565 | return sym; | |
566 | } | |
567 | ||
568 | DEFUN ("fmakunbound", Ffmakunbound, Sfmakunbound, 1, 1, 0, "Make SYMBOL's function definition be void.") | |
569 | (sym) | |
570 | register Lisp_Object sym; | |
571 | { | |
572 | CHECK_SYMBOL (sym, 0); | |
c15c5d40 KH |
573 | if (NILP (sym) || EQ (sym, Qt)) |
574 | return Fsignal (Qsetting_constant, Fcons (sym, Qnil)); | |
7921925c JB |
575 | XSYMBOL (sym)->function = Qunbound; |
576 | return sym; | |
577 | } | |
578 | ||
579 | DEFUN ("symbol-function", Fsymbol_function, Ssymbol_function, 1, 1, 0, | |
580 | "Return SYMBOL's function definition. Error if that is void.") | |
ffd56f97 JB |
581 | (symbol) |
582 | register Lisp_Object symbol; | |
7921925c | 583 | { |
ffd56f97 JB |
584 | CHECK_SYMBOL (symbol, 0); |
585 | if (EQ (XSYMBOL (symbol)->function, Qunbound)) | |
586 | return Fsignal (Qvoid_function, Fcons (symbol, Qnil)); | |
587 | return XSYMBOL (symbol)->function; | |
7921925c JB |
588 | } |
589 | ||
590 | DEFUN ("symbol-plist", Fsymbol_plist, Ssymbol_plist, 1, 1, 0, "Return SYMBOL's property list.") | |
591 | (sym) | |
592 | register Lisp_Object sym; | |
593 | { | |
594 | CHECK_SYMBOL (sym, 0); | |
595 | return XSYMBOL (sym)->plist; | |
596 | } | |
597 | ||
598 | DEFUN ("symbol-name", Fsymbol_name, Ssymbol_name, 1, 1, 0, "Return SYMBOL's name, a string.") | |
599 | (sym) | |
600 | register Lisp_Object sym; | |
601 | { | |
602 | register Lisp_Object name; | |
603 | ||
604 | CHECK_SYMBOL (sym, 0); | |
f187f1f7 | 605 | XSETSTRING (name, XSYMBOL (sym)->name); |
7921925c JB |
606 | return name; |
607 | } | |
608 | ||
609 | DEFUN ("fset", Ffset, Sfset, 2, 2, 0, | |
610 | "Set SYMBOL's function definition to NEWVAL, and return NEWVAL.") | |
611 | (sym, newdef) | |
612 | register Lisp_Object sym, newdef; | |
613 | { | |
614 | CHECK_SYMBOL (sym, 0); | |
c15c5d40 KH |
615 | if (NILP (sym) || EQ (sym, Qt)) |
616 | return Fsignal (Qsetting_constant, Fcons (sym, Qnil)); | |
a33ef3ab | 617 | if (!NILP (Vautoload_queue) && !EQ (XSYMBOL (sym)->function, Qunbound)) |
7921925c JB |
618 | Vautoload_queue = Fcons (Fcons (sym, XSYMBOL (sym)->function), |
619 | Vautoload_queue); | |
620 | XSYMBOL (sym)->function = newdef; | |
f845f2c9 | 621 | /* Handle automatic advice activation */ |
ab297811 | 622 | if (CONSP (XSYMBOL (sym)->plist) && !NILP (Fget (sym, Qad_advice_info))) |
f845f2c9 | 623 | { |
ab297811 | 624 | call2 (Qad_activate, sym, Qnil); |
f845f2c9 RS |
625 | newdef = XSYMBOL (sym)->function; |
626 | } | |
7921925c JB |
627 | return newdef; |
628 | } | |
629 | ||
d9bcdb34 RS |
630 | /* This name should be removed once it is eliminated from elsewhere. */ |
631 | ||
80df38a2 | 632 | DEFUN ("defalias", Fdefalias, Sdefalias, 2, 2, 0, |
fc08c367 RS |
633 | "Set SYMBOL's function definition to NEWVAL, and return NEWVAL.\n\ |
634 | Associates the function with the current load file, if any.") | |
635 | (sym, newdef) | |
636 | register Lisp_Object sym, newdef; | |
637 | { | |
638 | CHECK_SYMBOL (sym, 0); | |
639 | if (!NILP (Vautoload_queue) && !EQ (XSYMBOL (sym)->function, Qunbound)) | |
640 | Vautoload_queue = Fcons (Fcons (sym, XSYMBOL (sym)->function), | |
641 | Vautoload_queue); | |
642 | XSYMBOL (sym)->function = newdef; | |
ab297811 RS |
643 | /* Handle automatic advice activation */ |
644 | if (CONSP (XSYMBOL (sym)->plist) && !NILP (Fget (sym, Qad_advice_info))) | |
645 | { | |
646 | call2 (Qad_activate, sym, Qnil); | |
647 | newdef = XSYMBOL (sym)->function; | |
648 | } | |
fc08c367 RS |
649 | LOADHIST_ATTACH (sym); |
650 | return newdef; | |
651 | } | |
652 | ||
d9bcdb34 RS |
653 | DEFUN ("define-function", Fdefine_function, Sdefine_function, 2, 2, 0, |
654 | "Set SYMBOL's function definition to NEWVAL, and return NEWVAL.\n\ | |
655 | Associates the function with the current load file, if any.") | |
656 | (sym, newdef) | |
657 | register Lisp_Object sym, newdef; | |
658 | { | |
659 | CHECK_SYMBOL (sym, 0); | |
660 | if (!NILP (Vautoload_queue) && !EQ (XSYMBOL (sym)->function, Qunbound)) | |
661 | Vautoload_queue = Fcons (Fcons (sym, XSYMBOL (sym)->function), | |
662 | Vautoload_queue); | |
663 | XSYMBOL (sym)->function = newdef; | |
ab297811 RS |
664 | /* Handle automatic advice activation */ |
665 | if (CONSP (XSYMBOL (sym)->plist) && !NILP (Fget (sym, Qad_advice_info))) | |
666 | { | |
667 | call2 (Qad_activate, sym, Qnil); | |
668 | newdef = XSYMBOL (sym)->function; | |
669 | } | |
d9bcdb34 RS |
670 | LOADHIST_ATTACH (sym); |
671 | return newdef; | |
672 | } | |
673 | ||
7921925c JB |
674 | DEFUN ("setplist", Fsetplist, Ssetplist, 2, 2, 0, |
675 | "Set SYMBOL's property list to NEWVAL, and return NEWVAL.") | |
676 | (sym, newplist) | |
677 | register Lisp_Object sym, newplist; | |
678 | { | |
679 | CHECK_SYMBOL (sym, 0); | |
680 | XSYMBOL (sym)->plist = newplist; | |
681 | return newplist; | |
682 | } | |
ffd56f97 | 683 | |
7921925c JB |
684 | \f |
685 | /* Getting and setting values of symbols */ | |
686 | ||
687 | /* Given the raw contents of a symbol value cell, | |
688 | return the Lisp value of the symbol. | |
689 | This does not handle buffer-local variables; use | |
690 | swap_in_symval_forwarding for that. */ | |
691 | ||
692 | Lisp_Object | |
693 | do_symval_forwarding (valcontents) | |
694 | register Lisp_Object valcontents; | |
695 | { | |
696 | register Lisp_Object val; | |
46b2ac21 KH |
697 | int offset; |
698 | if (MISCP (valcontents)) | |
324a6eef | 699 | switch (XMISCTYPE (valcontents)) |
46b2ac21 KH |
700 | { |
701 | case Lisp_Misc_Intfwd: | |
702 | XSETINT (val, *XINTFWD (valcontents)->intvar); | |
703 | return val; | |
7921925c | 704 | |
46b2ac21 KH |
705 | case Lisp_Misc_Boolfwd: |
706 | return (*XBOOLFWD (valcontents)->boolvar ? Qt : Qnil); | |
7921925c | 707 | |
46b2ac21 KH |
708 | case Lisp_Misc_Objfwd: |
709 | return *XOBJFWD (valcontents)->objvar; | |
7921925c | 710 | |
46b2ac21 KH |
711 | case Lisp_Misc_Buffer_Objfwd: |
712 | offset = XBUFFER_OBJFWD (valcontents)->offset; | |
713 | return *(Lisp_Object *)(offset + (char *)current_buffer); | |
7403b5c8 | 714 | |
e5f8af9e KH |
715 | case Lisp_Misc_Kboard_Objfwd: |
716 | offset = XKBOARD_OBJFWD (valcontents)->offset; | |
717 | return *(Lisp_Object *)(offset + (char *)current_kboard); | |
46b2ac21 | 718 | } |
7921925c JB |
719 | return valcontents; |
720 | } | |
721 | ||
722 | /* Store NEWVAL into SYM, where VALCONTENTS is found in the value cell | |
723 | of SYM. If SYM is buffer-local, VALCONTENTS should be the | |
724 | buffer-independent contents of the value cell: forwarded just one | |
725 | step past the buffer-localness. */ | |
726 | ||
727 | void | |
728 | store_symval_forwarding (sym, valcontents, newval) | |
729 | Lisp_Object sym; | |
730 | register Lisp_Object valcontents, newval; | |
731 | { | |
0220c518 | 732 | switch (SWITCH_ENUM_CAST (XTYPE (valcontents))) |
7921925c | 733 | { |
46b2ac21 | 734 | case Lisp_Misc: |
324a6eef | 735 | switch (XMISCTYPE (valcontents)) |
46b2ac21 KH |
736 | { |
737 | case Lisp_Misc_Intfwd: | |
738 | CHECK_NUMBER (newval, 1); | |
739 | *XINTFWD (valcontents)->intvar = XINT (newval); | |
740 | break; | |
741 | ||
742 | case Lisp_Misc_Boolfwd: | |
743 | *XBOOLFWD (valcontents)->boolvar = NILP (newval) ? 0 : 1; | |
744 | break; | |
745 | ||
746 | case Lisp_Misc_Objfwd: | |
747 | *XOBJFWD (valcontents)->objvar = newval; | |
748 | break; | |
749 | ||
750 | case Lisp_Misc_Buffer_Objfwd: | |
751 | { | |
752 | int offset = XBUFFER_OBJFWD (valcontents)->offset; | |
753 | Lisp_Object type; | |
754 | ||
755 | type = *(Lisp_Object *)(offset + (char *)&buffer_local_types); | |
756 | if (! NILP (type) && ! NILP (newval) | |
757 | && XTYPE (newval) != XINT (type)) | |
758 | buffer_slot_type_mismatch (offset); | |
759 | ||
760 | *(Lisp_Object *)(offset + (char *)current_buffer) = newval; | |
46b2ac21 | 761 | } |
7403b5c8 KH |
762 | break; |
763 | ||
e5f8af9e KH |
764 | case Lisp_Misc_Kboard_Objfwd: |
765 | (*(Lisp_Object *)((char *)current_kboard | |
766 | + XKBOARD_OBJFWD (valcontents)->offset)) | |
7403b5c8 KH |
767 | = newval; |
768 | break; | |
769 | ||
46b2ac21 KH |
770 | default: |
771 | goto def; | |
772 | } | |
7921925c JB |
773 | break; |
774 | ||
7921925c | 775 | default: |
46b2ac21 | 776 | def: |
7921925c | 777 | valcontents = XSYMBOL (sym)->value; |
e9ebc175 KH |
778 | if (BUFFER_LOCAL_VALUEP (valcontents) |
779 | || SOME_BUFFER_LOCAL_VALUEP (valcontents)) | |
8d4afcac | 780 | XBUFFER_LOCAL_VALUE (valcontents)->car = newval; |
7921925c JB |
781 | else |
782 | XSYMBOL (sym)->value = newval; | |
783 | } | |
784 | } | |
785 | ||
786 | /* Set up the buffer-local symbol SYM for validity in the current | |
787 | buffer. VALCONTENTS is the contents of its value cell. | |
788 | Return the value forwarded one step past the buffer-local indicator. */ | |
789 | ||
790 | static Lisp_Object | |
791 | swap_in_symval_forwarding (sym, valcontents) | |
792 | Lisp_Object sym, valcontents; | |
793 | { | |
7403b5c8 | 794 | /* valcontents is a pointer to a struct resembling the cons |
7921925c | 795 | (REALVALUE BUFFER CURRENT-ALIST-ELEMENT . DEFAULT-VALUE)). |
7403b5c8 | 796 | |
7921925c | 797 | CURRENT-ALIST-ELEMENT is a pointer to an element of BUFFER's |
533984a8 JB |
798 | local_var_alist, that being the element whose car is this |
799 | variable. Or it can be a pointer to the | |
800 | (CURRENT-ALIST-ELEMENT . DEFAULT-VALUE), if BUFFER does not have | |
801 | an element in its alist for this variable. | |
802 | ||
803 | If the current buffer is not BUFFER, we store the current | |
804 | REALVALUE value into CURRENT-ALIST-ELEMENT, then find the | |
805 | appropriate alist element for the buffer now current and set up | |
806 | CURRENT-ALIST-ELEMENT. Then we set REALVALUE out of that | |
807 | element, and store into BUFFER. | |
808 | ||
7921925c JB |
809 | Note that REALVALUE can be a forwarding pointer. */ |
810 | ||
811 | register Lisp_Object tem1; | |
8d4afcac | 812 | tem1 = XCONS (XBUFFER_LOCAL_VALUE (valcontents)->cdr)->car; |
7921925c | 813 | |
a33ef3ab | 814 | if (NILP (tem1) || current_buffer != XBUFFER (tem1)) |
7921925c | 815 | { |
8d4afcac KH |
816 | tem1 = XCONS (XCONS (XBUFFER_LOCAL_VALUE (valcontents)->cdr)->cdr)->car; |
817 | Fsetcdr (tem1, | |
818 | do_symval_forwarding (XBUFFER_LOCAL_VALUE (valcontents)->car)); | |
7921925c | 819 | tem1 = assq_no_quit (sym, current_buffer->local_var_alist); |
a33ef3ab | 820 | if (NILP (tem1)) |
8d4afcac KH |
821 | tem1 = XCONS (XBUFFER_LOCAL_VALUE (valcontents)->cdr)->cdr; |
822 | XCONS (XCONS (XBUFFER_LOCAL_VALUE (valcontents)->cdr)->cdr)->car = tem1; | |
823 | XSETBUFFER (XCONS (XBUFFER_LOCAL_VALUE (valcontents)->cdr)->car, | |
824 | current_buffer); | |
825 | store_symval_forwarding (sym, XBUFFER_LOCAL_VALUE (valcontents)->car, | |
826 | Fcdr (tem1)); | |
7921925c | 827 | } |
8d4afcac | 828 | return XBUFFER_LOCAL_VALUE (valcontents)->car; |
7921925c JB |
829 | } |
830 | \f | |
14e76af9 JB |
831 | /* Find the value of a symbol, returning Qunbound if it's not bound. |
832 | This is helpful for code which just wants to get a variable's value | |
833 | if it has one, without signalling an error. | |
834 | Note that it must not be possible to quit | |
835 | within this function. Great care is required for this. */ | |
7921925c | 836 | |
14e76af9 JB |
837 | Lisp_Object |
838 | find_symbol_value (sym) | |
7921925c JB |
839 | Lisp_Object sym; |
840 | { | |
841 | register Lisp_Object valcontents, tem1; | |
842 | register Lisp_Object val; | |
843 | CHECK_SYMBOL (sym, 0); | |
844 | valcontents = XSYMBOL (sym)->value; | |
845 | ||
aabf6bec KH |
846 | if (BUFFER_LOCAL_VALUEP (valcontents) |
847 | || SOME_BUFFER_LOCAL_VALUEP (valcontents)) | |
536b772a | 848 | valcontents = swap_in_symval_forwarding (sym, valcontents); |
7921925c | 849 | |
536b772a KH |
850 | if (MISCP (valcontents)) |
851 | { | |
324a6eef | 852 | switch (XMISCTYPE (valcontents)) |
46b2ac21 KH |
853 | { |
854 | case Lisp_Misc_Intfwd: | |
855 | XSETINT (val, *XINTFWD (valcontents)->intvar); | |
856 | return val; | |
7921925c | 857 | |
46b2ac21 KH |
858 | case Lisp_Misc_Boolfwd: |
859 | return (*XBOOLFWD (valcontents)->boolvar ? Qt : Qnil); | |
7921925c | 860 | |
46b2ac21 KH |
861 | case Lisp_Misc_Objfwd: |
862 | return *XOBJFWD (valcontents)->objvar; | |
7921925c | 863 | |
46b2ac21 KH |
864 | case Lisp_Misc_Buffer_Objfwd: |
865 | return *(Lisp_Object *)(XBUFFER_OBJFWD (valcontents)->offset | |
866 | + (char *)current_buffer); | |
7403b5c8 | 867 | |
e5f8af9e KH |
868 | case Lisp_Misc_Kboard_Objfwd: |
869 | return *(Lisp_Object *)(XKBOARD_OBJFWD (valcontents)->offset | |
870 | + (char *)current_kboard); | |
46b2ac21 | 871 | } |
7921925c JB |
872 | } |
873 | ||
874 | return valcontents; | |
875 | } | |
876 | ||
14e76af9 JB |
877 | DEFUN ("symbol-value", Fsymbol_value, Ssymbol_value, 1, 1, 0, |
878 | "Return SYMBOL's value. Error if that is void.") | |
879 | (sym) | |
880 | Lisp_Object sym; | |
881 | { | |
0671d7c0 | 882 | Lisp_Object val; |
14e76af9 | 883 | |
0671d7c0 | 884 | val = find_symbol_value (sym); |
14e76af9 JB |
885 | if (EQ (val, Qunbound)) |
886 | return Fsignal (Qvoid_variable, Fcons (sym, Qnil)); | |
887 | else | |
888 | return val; | |
889 | } | |
890 | ||
7921925c JB |
891 | DEFUN ("set", Fset, Sset, 2, 2, 0, |
892 | "Set SYMBOL's value to NEWVAL, and return NEWVAL.") | |
893 | (sym, newval) | |
894 | register Lisp_Object sym, newval; | |
895 | { | |
1bfcade3 | 896 | int voide = EQ (newval, Qunbound); |
7921925c | 897 | |
7921925c | 898 | register Lisp_Object valcontents, tem1, current_alist_element; |
7921925c JB |
899 | |
900 | CHECK_SYMBOL (sym, 0); | |
a33ef3ab | 901 | if (NILP (sym) || EQ (sym, Qt)) |
7921925c JB |
902 | return Fsignal (Qsetting_constant, Fcons (sym, Qnil)); |
903 | valcontents = XSYMBOL (sym)->value; | |
904 | ||
e9ebc175 | 905 | if (BUFFER_OBJFWDP (valcontents)) |
7921925c | 906 | { |
46b2ac21 | 907 | register int idx = XBUFFER_OBJFWD (valcontents)->offset; |
865c050f KH |
908 | register int mask = XINT (*((Lisp_Object *) |
909 | (idx + (char *)&buffer_local_flags))); | |
7921925c JB |
910 | if (mask > 0) |
911 | current_buffer->local_var_flags |= mask; | |
912 | } | |
913 | ||
e9ebc175 KH |
914 | else if (BUFFER_LOCAL_VALUEP (valcontents) |
915 | || SOME_BUFFER_LOCAL_VALUEP (valcontents)) | |
7921925c | 916 | { |
8d4afcac KH |
917 | /* valcontents is actually a pointer to a struct resembling a cons, |
918 | with contents something like: | |
d8cafeb5 JB |
919 | (REALVALUE BUFFER CURRENT-ALIST-ELEMENT . DEFAULT-VALUE). |
920 | ||
921 | BUFFER is the last buffer for which this symbol's value was | |
922 | made up to date. | |
923 | ||
924 | CURRENT-ALIST-ELEMENT is a pointer to an element of BUFFER's | |
925 | local_var_alist, that being the element whose car is this | |
926 | variable. Or it can be a pointer to the | |
927 | (CURRENT-ALIST-ELEMENT . DEFAULT-VALUE), if BUFFER does not | |
928 | have an element in its alist for this variable (that is, if | |
929 | BUFFER sees the default value of this variable). | |
930 | ||
931 | If we want to examine or set the value and BUFFER is current, | |
932 | we just examine or set REALVALUE. If BUFFER is not current, we | |
933 | store the current REALVALUE value into CURRENT-ALIST-ELEMENT, | |
934 | then find the appropriate alist element for the buffer now | |
935 | current and set up CURRENT-ALIST-ELEMENT. Then we set | |
936 | REALVALUE out of that element, and store into BUFFER. | |
937 | ||
938 | If we are setting the variable and the current buffer does | |
939 | not have an alist entry for this variable, an alist entry is | |
940 | created. | |
941 | ||
942 | Note that REALVALUE can be a forwarding pointer. Each time | |
943 | it is examined or set, forwarding must be done. */ | |
944 | ||
945 | /* What value are we caching right now? */ | |
946 | current_alist_element = | |
8d4afcac | 947 | XCONS (XCONS (XBUFFER_LOCAL_VALUE (valcontents)->cdr)->cdr)->car; |
d8cafeb5 JB |
948 | |
949 | /* If the current buffer is not the buffer whose binding is | |
950 | currently cached, or if it's a Lisp_Buffer_Local_Value and | |
951 | we're looking at the default value, the cache is invalid; we | |
952 | need to write it out, and find the new CURRENT-ALIST-ELEMENT. */ | |
953 | if ((current_buffer | |
8d4afcac | 954 | != XBUFFER (XCONS (XBUFFER_LOCAL_VALUE (valcontents)->cdr)->car)) |
e9ebc175 | 955 | || (BUFFER_LOCAL_VALUEP (valcontents) |
b06faa91 JB |
956 | && EQ (XCONS (current_alist_element)->car, |
957 | current_alist_element))) | |
7921925c | 958 | { |
d8cafeb5 JB |
959 | /* Write out the cached value for the old buffer; copy it |
960 | back to its alist element. This works if the current | |
961 | buffer only sees the default value, too. */ | |
962 | Fsetcdr (current_alist_element, | |
8d4afcac | 963 | do_symval_forwarding (XBUFFER_LOCAL_VALUE (valcontents)->car)); |
7921925c | 964 | |
d8cafeb5 | 965 | /* Find the new value for CURRENT-ALIST-ELEMENT. */ |
7921925c | 966 | tem1 = Fassq (sym, current_buffer->local_var_alist); |
a33ef3ab | 967 | if (NILP (tem1)) |
d8cafeb5 JB |
968 | { |
969 | /* This buffer still sees the default value. */ | |
970 | ||
971 | /* If the variable is a Lisp_Some_Buffer_Local_Value, | |
972 | make CURRENT-ALIST-ELEMENT point to itself, | |
973 | indicating that we're seeing the default value. */ | |
e9ebc175 | 974 | if (SOME_BUFFER_LOCAL_VALUEP (valcontents)) |
8d4afcac | 975 | tem1 = XCONS (XBUFFER_LOCAL_VALUE (valcontents)->cdr)->cdr; |
d8cafeb5 JB |
976 | |
977 | /* If it's a Lisp_Buffer_Local_Value, give this buffer a | |
978 | new assoc for a local value and set | |
979 | CURRENT-ALIST-ELEMENT to point to that. */ | |
980 | else | |
981 | { | |
982 | tem1 = Fcons (sym, Fcdr (current_alist_element)); | |
983 | current_buffer->local_var_alist = | |
984 | Fcons (tem1, current_buffer->local_var_alist); | |
985 | } | |
986 | } | |
987 | /* Cache the new buffer's assoc in CURRENT-ALIST-ELEMENT. */ | |
8d4afcac KH |
988 | XCONS (XCONS (XBUFFER_LOCAL_VALUE (valcontents)->cdr)->cdr)->car |
989 | = tem1; | |
d8cafeb5 JB |
990 | |
991 | /* Set BUFFER, now that CURRENT-ALIST-ELEMENT is accurate. */ | |
8d4afcac KH |
992 | XSETBUFFER (XCONS (XBUFFER_LOCAL_VALUE (valcontents)->cdr)->car, |
993 | current_buffer); | |
7921925c | 994 | } |
8d4afcac | 995 | valcontents = XBUFFER_LOCAL_VALUE (valcontents)->car; |
7921925c | 996 | } |
d8cafeb5 | 997 | |
7921925c JB |
998 | /* If storing void (making the symbol void), forward only through |
999 | buffer-local indicator, not through Lisp_Objfwd, etc. */ | |
1000 | if (voide) | |
1001 | store_symval_forwarding (sym, Qnil, newval); | |
1002 | else | |
1003 | store_symval_forwarding (sym, valcontents, newval); | |
d8cafeb5 | 1004 | |
7921925c JB |
1005 | return newval; |
1006 | } | |
1007 | \f | |
1008 | /* Access or set a buffer-local symbol's default value. */ | |
1009 | ||
1010 | /* Return the default value of SYM, but don't check for voidness. | |
1bfcade3 | 1011 | Return Qunbound if it is void. */ |
7921925c JB |
1012 | |
1013 | Lisp_Object | |
1014 | default_value (sym) | |
1015 | Lisp_Object sym; | |
1016 | { | |
1017 | register Lisp_Object valcontents; | |
1018 | ||
1019 | CHECK_SYMBOL (sym, 0); | |
1020 | valcontents = XSYMBOL (sym)->value; | |
1021 | ||
1022 | /* For a built-in buffer-local variable, get the default value | |
1023 | rather than letting do_symval_forwarding get the current value. */ | |
e9ebc175 | 1024 | if (BUFFER_OBJFWDP (valcontents)) |
7921925c | 1025 | { |
46b2ac21 | 1026 | register int idx = XBUFFER_OBJFWD (valcontents)->offset; |
7921925c | 1027 | |
865c050f | 1028 | if (XINT (*(Lisp_Object *) (idx + (char *) &buffer_local_flags)) != 0) |
7921925c JB |
1029 | return *(Lisp_Object *)(idx + (char *) &buffer_defaults); |
1030 | } | |
1031 | ||
1032 | /* Handle user-created local variables. */ | |
e9ebc175 KH |
1033 | if (BUFFER_LOCAL_VALUEP (valcontents) |
1034 | || SOME_BUFFER_LOCAL_VALUEP (valcontents)) | |
7921925c JB |
1035 | { |
1036 | /* If var is set up for a buffer that lacks a local value for it, | |
1037 | the current value is nominally the default value. | |
1038 | But the current value slot may be more up to date, since | |
1039 | ordinary setq stores just that slot. So use that. */ | |
1040 | Lisp_Object current_alist_element, alist_element_car; | |
1041 | current_alist_element | |
8d4afcac | 1042 | = XCONS (XCONS (XBUFFER_LOCAL_VALUE (valcontents)->cdr)->cdr)->car; |
7921925c JB |
1043 | alist_element_car = XCONS (current_alist_element)->car; |
1044 | if (EQ (alist_element_car, current_alist_element)) | |
8d4afcac | 1045 | return do_symval_forwarding (XBUFFER_LOCAL_VALUE (valcontents)->car); |
7921925c | 1046 | else |
8d4afcac | 1047 | return XCONS (XCONS (XBUFFER_LOCAL_VALUE (valcontents)->cdr)->cdr)->cdr; |
7921925c JB |
1048 | } |
1049 | /* For other variables, get the current value. */ | |
1050 | return do_symval_forwarding (valcontents); | |
1051 | } | |
1052 | ||
1053 | DEFUN ("default-boundp", Fdefault_boundp, Sdefault_boundp, 1, 1, 0, | |
1054 | "Return T if SYMBOL has a non-void default value.\n\ | |
1055 | This is the value that is seen in buffers that do not have their own values\n\ | |
1056 | for this variable.") | |
1057 | (sym) | |
1058 | Lisp_Object sym; | |
1059 | { | |
1060 | register Lisp_Object value; | |
1061 | ||
1062 | value = default_value (sym); | |
1bfcade3 | 1063 | return (EQ (value, Qunbound) ? Qnil : Qt); |
7921925c JB |
1064 | } |
1065 | ||
1066 | DEFUN ("default-value", Fdefault_value, Sdefault_value, 1, 1, 0, | |
1067 | "Return SYMBOL's default value.\n\ | |
1068 | This is the value that is seen in buffers that do not have their own values\n\ | |
1069 | for this variable. The default value is meaningful for variables with\n\ | |
1070 | local bindings in certain buffers.") | |
1071 | (sym) | |
1072 | Lisp_Object sym; | |
1073 | { | |
1074 | register Lisp_Object value; | |
1075 | ||
1076 | value = default_value (sym); | |
1bfcade3 | 1077 | if (EQ (value, Qunbound)) |
7921925c JB |
1078 | return Fsignal (Qvoid_variable, Fcons (sym, Qnil)); |
1079 | return value; | |
1080 | } | |
1081 | ||
1082 | DEFUN ("set-default", Fset_default, Sset_default, 2, 2, 0, | |
1083 | "Set SYMBOL's default value to VAL. SYMBOL and VAL are evaluated.\n\ | |
1084 | The default value is seen in buffers that do not have their own values\n\ | |
1085 | for this variable.") | |
1086 | (sym, value) | |
1087 | Lisp_Object sym, value; | |
1088 | { | |
1089 | register Lisp_Object valcontents, current_alist_element, alist_element_buffer; | |
1090 | ||
1091 | CHECK_SYMBOL (sym, 0); | |
1092 | valcontents = XSYMBOL (sym)->value; | |
1093 | ||
1094 | /* Handle variables like case-fold-search that have special slots | |
1095 | in the buffer. Make them work apparently like Lisp_Buffer_Local_Value | |
1096 | variables. */ | |
e9ebc175 | 1097 | if (BUFFER_OBJFWDP (valcontents)) |
7921925c | 1098 | { |
46b2ac21 | 1099 | register int idx = XBUFFER_OBJFWD (valcontents)->offset; |
7921925c | 1100 | register struct buffer *b; |
865c050f KH |
1101 | register int mask = XINT (*((Lisp_Object *) |
1102 | (idx + (char *)&buffer_local_flags))); | |
7921925c JB |
1103 | |
1104 | if (mask > 0) | |
1105 | { | |
1106 | *(Lisp_Object *)(idx + (char *) &buffer_defaults) = value; | |
1107 | for (b = all_buffers; b; b = b->next) | |
1108 | if (!(b->local_var_flags & mask)) | |
1109 | *(Lisp_Object *)(idx + (char *) b) = value; | |
1110 | } | |
1111 | return value; | |
1112 | } | |
1113 | ||
e9ebc175 KH |
1114 | if (!BUFFER_LOCAL_VALUEP (valcontents) |
1115 | && !SOME_BUFFER_LOCAL_VALUEP (valcontents)) | |
7921925c JB |
1116 | return Fset (sym, value); |
1117 | ||
1118 | /* Store new value into the DEFAULT-VALUE slot */ | |
8d4afcac | 1119 | XCONS (XCONS (XBUFFER_LOCAL_VALUE (valcontents)->cdr)->cdr)->cdr = value; |
7921925c JB |
1120 | |
1121 | /* If that slot is current, we must set the REALVALUE slot too */ | |
8d4afcac KH |
1122 | current_alist_element |
1123 | = XCONS (XCONS (XBUFFER_LOCAL_VALUE (valcontents)->cdr)->cdr)->car; | |
7921925c JB |
1124 | alist_element_buffer = Fcar (current_alist_element); |
1125 | if (EQ (alist_element_buffer, current_alist_element)) | |
8d4afcac KH |
1126 | store_symval_forwarding (sym, XBUFFER_LOCAL_VALUE (valcontents)->car, |
1127 | value); | |
7921925c JB |
1128 | |
1129 | return value; | |
1130 | } | |
1131 | ||
1132 | DEFUN ("setq-default", Fsetq_default, Ssetq_default, 2, UNEVALLED, 0, | |
0412bf67 RS |
1133 | "Set the default value of variable VAR to VALUE.\n\ |
1134 | VAR, the variable name, is literal (not evaluated);\n\ | |
1135 | VALUE is an expression and it is evaluated.\n\ | |
1136 | The default value of a variable is seen in buffers\n\ | |
1137 | that do not have their own values for the variable.\n\ | |
1138 | \n\ | |
1139 | More generally, you can use multiple variables and values, as in\n\ | |
1140 | (setq-default SYM VALUE SYM VALUE...)\n\ | |
1141 | This sets each SYM's default value to the corresponding VALUE.\n\ | |
1142 | The VALUE for the Nth SYM can refer to the new default values\n\ | |
1143 | of previous SYMs.") | |
7921925c JB |
1144 | (args) |
1145 | Lisp_Object args; | |
1146 | { | |
1147 | register Lisp_Object args_left; | |
1148 | register Lisp_Object val, sym; | |
1149 | struct gcpro gcpro1; | |
1150 | ||
a33ef3ab | 1151 | if (NILP (args)) |
7921925c JB |
1152 | return Qnil; |
1153 | ||
1154 | args_left = args; | |
1155 | GCPRO1 (args); | |
1156 | ||
1157 | do | |
1158 | { | |
1159 | val = Feval (Fcar (Fcdr (args_left))); | |
1160 | sym = Fcar (args_left); | |
1161 | Fset_default (sym, val); | |
1162 | args_left = Fcdr (Fcdr (args_left)); | |
1163 | } | |
a33ef3ab | 1164 | while (!NILP (args_left)); |
7921925c JB |
1165 | |
1166 | UNGCPRO; | |
1167 | return val; | |
1168 | } | |
1169 | \f | |
a5ca2b75 JB |
1170 | /* Lisp functions for creating and removing buffer-local variables. */ |
1171 | ||
7921925c JB |
1172 | DEFUN ("make-variable-buffer-local", Fmake_variable_buffer_local, Smake_variable_buffer_local, |
1173 | 1, 1, "vMake Variable Buffer Local: ", | |
1174 | "Make VARIABLE have a separate value for each buffer.\n\ | |
1175 | At any time, the value for the current buffer is in effect.\n\ | |
1176 | There is also a default value which is seen in any buffer which has not yet\n\ | |
1177 | set its own value.\n\ | |
1178 | Using `set' or `setq' to set the variable causes it to have a separate value\n\ | |
1179 | for the current buffer if it was previously using the default value.\n\ | |
1180 | The function `default-value' gets the default value and `set-default' sets it.") | |
1181 | (sym) | |
1182 | register Lisp_Object sym; | |
1183 | { | |
8d4afcac | 1184 | register Lisp_Object tem, valcontents, newval; |
7921925c JB |
1185 | |
1186 | CHECK_SYMBOL (sym, 0); | |
1187 | ||
7403b5c8 | 1188 | valcontents = XSYMBOL (sym)->value; |
e5f8af9e | 1189 | if (EQ (sym, Qnil) || EQ (sym, Qt) || KBOARD_OBJFWDP (valcontents)) |
7921925c JB |
1190 | error ("Symbol %s may not be buffer-local", XSYMBOL (sym)->name->data); |
1191 | ||
e9ebc175 | 1192 | if (BUFFER_LOCAL_VALUEP (valcontents) || BUFFER_OBJFWDP (valcontents)) |
7921925c | 1193 | return sym; |
e9ebc175 | 1194 | if (SOME_BUFFER_LOCAL_VALUEP (valcontents)) |
7921925c | 1195 | { |
324a6eef | 1196 | XMISCTYPE (XSYMBOL (sym)->value) = Lisp_Misc_Buffer_Local_Value; |
7921925c JB |
1197 | return sym; |
1198 | } | |
1199 | if (EQ (valcontents, Qunbound)) | |
1200 | XSYMBOL (sym)->value = Qnil; | |
1201 | tem = Fcons (Qnil, Fsymbol_value (sym)); | |
1202 | XCONS (tem)->car = tem; | |
8d4afcac | 1203 | newval = allocate_misc (); |
324a6eef | 1204 | XMISCTYPE (newval) = Lisp_Misc_Buffer_Local_Value; |
8d4afcac KH |
1205 | XBUFFER_LOCAL_VALUE (newval)->car = XSYMBOL (sym)->value; |
1206 | XBUFFER_LOCAL_VALUE (newval)->cdr = Fcons (Fcurrent_buffer (), tem); | |
1207 | XSYMBOL (sym)->value = newval; | |
7921925c JB |
1208 | return sym; |
1209 | } | |
1210 | ||
1211 | DEFUN ("make-local-variable", Fmake_local_variable, Smake_local_variable, | |
1212 | 1, 1, "vMake Local Variable: ", | |
1213 | "Make VARIABLE have a separate value in the current buffer.\n\ | |
1214 | Other buffers will continue to share a common default value.\n\ | |
a782f0d5 RS |
1215 | \(The buffer-local value of VARIABLE starts out as the same value\n\ |
1216 | VARIABLE previously had. If VARIABLE was void, it remains void.\)\n\ | |
7921925c JB |
1217 | See also `make-variable-buffer-local'.\n\n\ |
1218 | If the variable is already arranged to become local when set,\n\ | |
1219 | this function causes a local value to exist for this buffer,\n\ | |
62476adc RS |
1220 | just as setting the variable would do.\n\ |
1221 | \n\ | |
1222 | Do not use `make-local-variable' to make a hook variable buffer-local.\n\ | |
1223 | Use `make-local-hook' instead.") | |
7921925c JB |
1224 | (sym) |
1225 | register Lisp_Object sym; | |
1226 | { | |
1227 | register Lisp_Object tem, valcontents; | |
1228 | ||
1229 | CHECK_SYMBOL (sym, 0); | |
1230 | ||
7403b5c8 | 1231 | valcontents = XSYMBOL (sym)->value; |
e5f8af9e | 1232 | if (EQ (sym, Qnil) || EQ (sym, Qt) || KBOARD_OBJFWDP (valcontents)) |
7921925c JB |
1233 | error ("Symbol %s may not be buffer-local", XSYMBOL (sym)->name->data); |
1234 | ||
e9ebc175 | 1235 | if (BUFFER_LOCAL_VALUEP (valcontents) || BUFFER_OBJFWDP (valcontents)) |
7921925c JB |
1236 | { |
1237 | tem = Fboundp (sym); | |
7403b5c8 | 1238 | |
7921925c JB |
1239 | /* Make sure the symbol has a local value in this particular buffer, |
1240 | by setting it to the same value it already has. */ | |
1241 | Fset (sym, (EQ (tem, Qt) ? Fsymbol_value (sym) : Qunbound)); | |
1242 | return sym; | |
1243 | } | |
1244 | /* Make sure sym is set up to hold per-buffer values */ | |
e9ebc175 | 1245 | if (!SOME_BUFFER_LOCAL_VALUEP (valcontents)) |
7921925c | 1246 | { |
8d4afcac | 1247 | Lisp_Object newval; |
7921925c JB |
1248 | tem = Fcons (Qnil, do_symval_forwarding (valcontents)); |
1249 | XCONS (tem)->car = tem; | |
8d4afcac | 1250 | newval = allocate_misc (); |
324a6eef | 1251 | XMISCTYPE (newval) = Lisp_Misc_Some_Buffer_Local_Value; |
8d4afcac KH |
1252 | XBUFFER_LOCAL_VALUE (newval)->car = XSYMBOL (sym)->value; |
1253 | XBUFFER_LOCAL_VALUE (newval)->cdr = Fcons (Qnil, tem); | |
1254 | XSYMBOL (sym)->value = newval; | |
7921925c JB |
1255 | } |
1256 | /* Make sure this buffer has its own value of sym */ | |
1257 | tem = Fassq (sym, current_buffer->local_var_alist); | |
a33ef3ab | 1258 | if (NILP (tem)) |
7921925c JB |
1259 | { |
1260 | current_buffer->local_var_alist | |
8d4afcac | 1261 | = Fcons (Fcons (sym, XCONS (XCONS (XBUFFER_LOCAL_VALUE (XSYMBOL (sym)->value)->cdr)->cdr)->cdr), |
7921925c JB |
1262 | current_buffer->local_var_alist); |
1263 | ||
1264 | /* Make sure symbol does not think it is set up for this buffer; | |
1265 | force it to look once again for this buffer's value */ | |
1266 | { | |
8d4afcac KH |
1267 | Lisp_Object *pvalbuf; |
1268 | valcontents = XSYMBOL (sym)->value; | |
1269 | pvalbuf = &XCONS (XBUFFER_LOCAL_VALUE (valcontents)->cdr)->car; | |
1270 | if (current_buffer == XBUFFER (*pvalbuf)) | |
1271 | *pvalbuf = Qnil; | |
7921925c | 1272 | } |
7921925c | 1273 | } |
a5ca2b75 JB |
1274 | |
1275 | /* If the symbol forwards into a C variable, then swap in the | |
1276 | variable for this buffer immediately. If C code modifies the | |
1277 | variable before we swap in, then that new value will clobber the | |
1278 | default value the next time we swap. */ | |
8d4afcac | 1279 | valcontents = XBUFFER_LOCAL_VALUE (XSYMBOL (sym)->value)->car; |
e9ebc175 | 1280 | if (INTFWDP (valcontents) || BOOLFWDP (valcontents) || OBJFWDP (valcontents)) |
a5ca2b75 JB |
1281 | swap_in_symval_forwarding (sym, XSYMBOL (sym)->value); |
1282 | ||
7921925c JB |
1283 | return sym; |
1284 | } | |
1285 | ||
1286 | DEFUN ("kill-local-variable", Fkill_local_variable, Skill_local_variable, | |
1287 | 1, 1, "vKill Local Variable: ", | |
1288 | "Make VARIABLE no longer have a separate value in the current buffer.\n\ | |
1289 | From now on the default value will apply in this buffer.") | |
1290 | (sym) | |
1291 | register Lisp_Object sym; | |
1292 | { | |
1293 | register Lisp_Object tem, valcontents; | |
1294 | ||
1295 | CHECK_SYMBOL (sym, 0); | |
1296 | ||
1297 | valcontents = XSYMBOL (sym)->value; | |
1298 | ||
e9ebc175 | 1299 | if (BUFFER_OBJFWDP (valcontents)) |
7921925c | 1300 | { |
46b2ac21 | 1301 | register int idx = XBUFFER_OBJFWD (valcontents)->offset; |
865c050f KH |
1302 | register int mask = XINT (*((Lisp_Object*) |
1303 | (idx + (char *)&buffer_local_flags))); | |
7921925c JB |
1304 | |
1305 | if (mask > 0) | |
1306 | { | |
1307 | *(Lisp_Object *)(idx + (char *) current_buffer) | |
1308 | = *(Lisp_Object *)(idx + (char *) &buffer_defaults); | |
1309 | current_buffer->local_var_flags &= ~mask; | |
1310 | } | |
1311 | return sym; | |
1312 | } | |
1313 | ||
e9ebc175 KH |
1314 | if (!BUFFER_LOCAL_VALUEP (valcontents) |
1315 | && !SOME_BUFFER_LOCAL_VALUEP (valcontents)) | |
7921925c JB |
1316 | return sym; |
1317 | ||
1318 | /* Get rid of this buffer's alist element, if any */ | |
1319 | ||
1320 | tem = Fassq (sym, current_buffer->local_var_alist); | |
a33ef3ab | 1321 | if (!NILP (tem)) |
8d4afcac KH |
1322 | current_buffer->local_var_alist |
1323 | = Fdelq (tem, current_buffer->local_var_alist); | |
7921925c JB |
1324 | |
1325 | /* Make sure symbol does not think it is set up for this buffer; | |
1326 | force it to look once again for this buffer's value */ | |
1327 | { | |
8d4afcac KH |
1328 | Lisp_Object *pvalbuf; |
1329 | valcontents = XSYMBOL (sym)->value; | |
1330 | pvalbuf = &XCONS (XBUFFER_LOCAL_VALUE (valcontents)->cdr)->car; | |
1331 | if (current_buffer == XBUFFER (*pvalbuf)) | |
1332 | *pvalbuf = Qnil; | |
7921925c JB |
1333 | } |
1334 | ||
1335 | return sym; | |
1336 | } | |
62476adc RS |
1337 | |
1338 | DEFUN ("local-variable-p", Flocal_variable_p, Slocal_variable_p, | |
1339 | 1, 1, 0, | |
1340 | "Non-nil if VARIABLE has a local binding in the current buffer.") | |
1341 | (sym) | |
1342 | register Lisp_Object sym; | |
1343 | { | |
1344 | Lisp_Object valcontents; | |
1345 | ||
1346 | CHECK_SYMBOL (sym, 0); | |
1347 | ||
1348 | valcontents = XSYMBOL (sym)->value; | |
1349 | return ((BUFFER_LOCAL_VALUEP (valcontents) | |
1350 | || SOME_BUFFER_LOCAL_VALUEP (valcontents) | |
1351 | || BUFFER_OBJFWDP (valcontents)) | |
1352 | ? Qt : Qnil); | |
1353 | } | |
7921925c | 1354 | \f |
ffd56f97 JB |
1355 | /* Find the function at the end of a chain of symbol function indirections. */ |
1356 | ||
1357 | /* If OBJECT is a symbol, find the end of its function chain and | |
1358 | return the value found there. If OBJECT is not a symbol, just | |
1359 | return it. If there is a cycle in the function chain, signal a | |
1360 | cyclic-function-indirection error. | |
1361 | ||
1362 | This is like Findirect_function, except that it doesn't signal an | |
1363 | error if the chain ends up unbound. */ | |
1364 | Lisp_Object | |
a2932990 | 1365 | indirect_function (object) |
62476adc | 1366 | register Lisp_Object object; |
ffd56f97 | 1367 | { |
eb8c3be9 | 1368 | Lisp_Object tortoise, hare; |
ffd56f97 | 1369 | |
eb8c3be9 | 1370 | hare = tortoise = object; |
ffd56f97 JB |
1371 | |
1372 | for (;;) | |
1373 | { | |
e9ebc175 | 1374 | if (!SYMBOLP (hare) || EQ (hare, Qunbound)) |
ffd56f97 JB |
1375 | break; |
1376 | hare = XSYMBOL (hare)->function; | |
e9ebc175 | 1377 | if (!SYMBOLP (hare) || EQ (hare, Qunbound)) |
ffd56f97 JB |
1378 | break; |
1379 | hare = XSYMBOL (hare)->function; | |
1380 | ||
eb8c3be9 | 1381 | tortoise = XSYMBOL (tortoise)->function; |
ffd56f97 | 1382 | |
eb8c3be9 | 1383 | if (EQ (hare, tortoise)) |
ffd56f97 JB |
1384 | Fsignal (Qcyclic_function_indirection, Fcons (object, Qnil)); |
1385 | } | |
1386 | ||
1387 | return hare; | |
1388 | } | |
1389 | ||
1390 | DEFUN ("indirect-function", Findirect_function, Sindirect_function, 1, 1, 0, | |
1391 | "Return the function at the end of OBJECT's function chain.\n\ | |
1392 | If OBJECT is a symbol, follow all function indirections and return the final\n\ | |
1393 | function binding.\n\ | |
1394 | If OBJECT is not a symbol, just return it.\n\ | |
1395 | Signal a void-function error if the final symbol is unbound.\n\ | |
1396 | Signal a cyclic-function-indirection error if there is a loop in the\n\ | |
1397 | function chain of symbols.") | |
1398 | (object) | |
1399 | register Lisp_Object object; | |
1400 | { | |
1401 | Lisp_Object result; | |
1402 | ||
1403 | result = indirect_function (object); | |
1404 | ||
1405 | if (EQ (result, Qunbound)) | |
1406 | return Fsignal (Qvoid_function, Fcons (object, Qnil)); | |
1407 | return result; | |
1408 | } | |
1409 | \f | |
7921925c JB |
1410 | /* Extract and set vector and string elements */ |
1411 | ||
1412 | DEFUN ("aref", Faref, Saref, 2, 2, 0, | |
1413 | "Return the element of ARRAY at index INDEX.\n\ | |
1414 | ARRAY may be a vector or a string, or a byte-code object. INDEX starts at 0.") | |
1415 | (array, idx) | |
1416 | register Lisp_Object array; | |
1417 | Lisp_Object idx; | |
1418 | { | |
1419 | register int idxval; | |
1420 | ||
1421 | CHECK_NUMBER (idx, 1); | |
1422 | idxval = XINT (idx); | |
e9ebc175 | 1423 | if (STRINGP (array)) |
7921925c JB |
1424 | { |
1425 | Lisp_Object val; | |
c24e4efe KH |
1426 | if (idxval < 0 || idxval >= XSTRING (array)->size) |
1427 | args_out_of_range (array, idx); | |
1b42cf2e | 1428 | XSETFASTINT (val, (unsigned char) XSTRING (array)->data[idxval]); |
7921925c JB |
1429 | return val; |
1430 | } | |
1431 | else | |
c24e4efe | 1432 | { |
7f358972 RS |
1433 | int size; |
1434 | if (VECTORP (array)) | |
1435 | size = XVECTOR (array)->size; | |
1436 | else if (COMPILEDP (array)) | |
1437 | size = XVECTOR (array)->size & PSEUDOVECTOR_SIZE_MASK; | |
1438 | else | |
1439 | wrong_type_argument (Qarrayp, array); | |
1440 | ||
1441 | if (idxval < 0 || idxval >= size) | |
c24e4efe KH |
1442 | args_out_of_range (array, idx); |
1443 | return XVECTOR (array)->contents[idxval]; | |
1444 | } | |
7921925c JB |
1445 | } |
1446 | ||
1447 | DEFUN ("aset", Faset, Saset, 3, 3, 0, | |
73d40355 RS |
1448 | "Store into the element of ARRAY at index IDX the value NEWELT.\n\ |
1449 | ARRAY may be a vector or a string. IDX starts at 0.") | |
7921925c JB |
1450 | (array, idx, newelt) |
1451 | register Lisp_Object array; | |
1452 | Lisp_Object idx, newelt; | |
1453 | { | |
1454 | register int idxval; | |
1455 | ||
1456 | CHECK_NUMBER (idx, 1); | |
1457 | idxval = XINT (idx); | |
e9ebc175 | 1458 | if (!VECTORP (array) && !STRINGP (array)) |
7921925c | 1459 | array = wrong_type_argument (Qarrayp, array); |
7921925c JB |
1460 | CHECK_IMPURE (array); |
1461 | ||
e9ebc175 | 1462 | if (VECTORP (array)) |
c24e4efe KH |
1463 | { |
1464 | if (idxval < 0 || idxval >= XVECTOR (array)->size) | |
1465 | args_out_of_range (array, idx); | |
1466 | XVECTOR (array)->contents[idxval] = newelt; | |
1467 | } | |
7921925c JB |
1468 | else |
1469 | { | |
c24e4efe KH |
1470 | if (idxval < 0 || idxval >= XSTRING (array)->size) |
1471 | args_out_of_range (array, idx); | |
7921925c JB |
1472 | CHECK_NUMBER (newelt, 2); |
1473 | XSTRING (array)->data[idxval] = XINT (newelt); | |
1474 | } | |
1475 | ||
1476 | return newelt; | |
1477 | } | |
7921925c JB |
1478 | \f |
1479 | /* Arithmetic functions */ | |
1480 | ||
1481 | enum comparison { equal, notequal, less, grtr, less_or_equal, grtr_or_equal }; | |
1482 | ||
1483 | Lisp_Object | |
1484 | arithcompare (num1, num2, comparison) | |
1485 | Lisp_Object num1, num2; | |
1486 | enum comparison comparison; | |
1487 | { | |
1488 | double f1, f2; | |
1489 | int floatp = 0; | |
1490 | ||
1491 | #ifdef LISP_FLOAT_TYPE | |
1492 | CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (num1, 0); | |
1493 | CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (num2, 0); | |
1494 | ||
e9ebc175 | 1495 | if (FLOATP (num1) || FLOATP (num2)) |
7921925c JB |
1496 | { |
1497 | floatp = 1; | |
e9ebc175 KH |
1498 | f1 = (FLOATP (num1)) ? XFLOAT (num1)->data : XINT (num1); |
1499 | f2 = (FLOATP (num2)) ? XFLOAT (num2)->data : XINT (num2); | |
7921925c JB |
1500 | } |
1501 | #else | |
1502 | CHECK_NUMBER_COERCE_MARKER (num1, 0); | |
1503 | CHECK_NUMBER_COERCE_MARKER (num2, 0); | |
1504 | #endif /* LISP_FLOAT_TYPE */ | |
1505 | ||
1506 | switch (comparison) | |
1507 | { | |
1508 | case equal: | |
1509 | if (floatp ? f1 == f2 : XINT (num1) == XINT (num2)) | |
1510 | return Qt; | |
1511 | return Qnil; | |
1512 | ||
1513 | case notequal: | |
1514 | if (floatp ? f1 != f2 : XINT (num1) != XINT (num2)) | |
1515 | return Qt; | |
1516 | return Qnil; | |
1517 | ||
1518 | case less: | |
1519 | if (floatp ? f1 < f2 : XINT (num1) < XINT (num2)) | |
1520 | return Qt; | |
1521 | return Qnil; | |
1522 | ||
1523 | case less_or_equal: | |
1524 | if (floatp ? f1 <= f2 : XINT (num1) <= XINT (num2)) | |
1525 | return Qt; | |
1526 | return Qnil; | |
1527 | ||
1528 | case grtr: | |
1529 | if (floatp ? f1 > f2 : XINT (num1) > XINT (num2)) | |
1530 | return Qt; | |
1531 | return Qnil; | |
1532 | ||
1533 | case grtr_or_equal: | |
1534 | if (floatp ? f1 >= f2 : XINT (num1) >= XINT (num2)) | |
1535 | return Qt; | |
1536 | return Qnil; | |
25e40a4b JB |
1537 | |
1538 | default: | |
1539 | abort (); | |
7921925c JB |
1540 | } |
1541 | } | |
1542 | ||
1543 | DEFUN ("=", Feqlsign, Seqlsign, 2, 2, 0, | |
1544 | "T if two args, both numbers or markers, are equal.") | |
1545 | (num1, num2) | |
1546 | register Lisp_Object num1, num2; | |
1547 | { | |
1548 | return arithcompare (num1, num2, equal); | |
1549 | } | |
1550 | ||
1551 | DEFUN ("<", Flss, Slss, 2, 2, 0, | |
1552 | "T if first arg is less than second arg. Both must be numbers or markers.") | |
1553 | (num1, num2) | |
1554 | register Lisp_Object num1, num2; | |
1555 | { | |
1556 | return arithcompare (num1, num2, less); | |
1557 | } | |
1558 | ||
1559 | DEFUN (">", Fgtr, Sgtr, 2, 2, 0, | |
1560 | "T if first arg is greater than second arg. Both must be numbers or markers.") | |
1561 | (num1, num2) | |
1562 | register Lisp_Object num1, num2; | |
1563 | { | |
1564 | return arithcompare (num1, num2, grtr); | |
1565 | } | |
1566 | ||
1567 | DEFUN ("<=", Fleq, Sleq, 2, 2, 0, | |
1568 | "T if first arg is less than or equal to second arg.\n\ | |
1569 | Both must be numbers or markers.") | |
1570 | (num1, num2) | |
1571 | register Lisp_Object num1, num2; | |
1572 | { | |
1573 | return arithcompare (num1, num2, less_or_equal); | |
1574 | } | |
1575 | ||
1576 | DEFUN (">=", Fgeq, Sgeq, 2, 2, 0, | |
1577 | "T if first arg is greater than or equal to second arg.\n\ | |
1578 | Both must be numbers or markers.") | |
1579 | (num1, num2) | |
1580 | register Lisp_Object num1, num2; | |
1581 | { | |
1582 | return arithcompare (num1, num2, grtr_or_equal); | |
1583 | } | |
1584 | ||
1585 | DEFUN ("/=", Fneq, Sneq, 2, 2, 0, | |
1586 | "T if first arg is not equal to second arg. Both must be numbers or markers.") | |
1587 | (num1, num2) | |
1588 | register Lisp_Object num1, num2; | |
1589 | { | |
1590 | return arithcompare (num1, num2, notequal); | |
1591 | } | |
1592 | ||
1593 | DEFUN ("zerop", Fzerop, Szerop, 1, 1, 0, "T if NUMBER is zero.") | |
1594 | (num) | |
1595 | register Lisp_Object num; | |
1596 | { | |
1597 | #ifdef LISP_FLOAT_TYPE | |
1598 | CHECK_NUMBER_OR_FLOAT (num, 0); | |
1599 | ||
e9ebc175 | 1600 | if (FLOATP (num)) |
7921925c JB |
1601 | { |
1602 | if (XFLOAT(num)->data == 0.0) | |
1603 | return Qt; | |
1604 | return Qnil; | |
1605 | } | |
1606 | #else | |
1607 | CHECK_NUMBER (num, 0); | |
1608 | #endif /* LISP_FLOAT_TYPE */ | |
1609 | ||
1610 | if (!XINT (num)) | |
1611 | return Qt; | |
1612 | return Qnil; | |
1613 | } | |
1614 | \f | |
51cf3e31 JB |
1615 | /* Convert between 32-bit values and pairs of lispy 24-bit values. */ |
1616 | ||
1617 | Lisp_Object | |
1618 | long_to_cons (i) | |
1619 | unsigned long i; | |
1620 | { | |
1621 | unsigned int top = i >> 16; | |
1622 | unsigned int bot = i & 0xFFFF; | |
1623 | if (top == 0) | |
1624 | return make_number (bot); | |
1625 | if (top == 0xFFFF) | |
1626 | return Fcons (make_number (-1), make_number (bot)); | |
1627 | return Fcons (make_number (top), make_number (bot)); | |
1628 | } | |
1629 | ||
1630 | unsigned long | |
1631 | cons_to_long (c) | |
1632 | Lisp_Object c; | |
1633 | { | |
878a80cc | 1634 | Lisp_Object top, bot; |
51cf3e31 JB |
1635 | if (INTEGERP (c)) |
1636 | return XINT (c); | |
1637 | top = XCONS (c)->car; | |
1638 | bot = XCONS (c)->cdr; | |
1639 | if (CONSP (bot)) | |
1640 | bot = XCONS (bot)->car; | |
1641 | return ((XINT (top) << 16) | XINT (bot)); | |
1642 | } | |
1643 | \f | |
f2980264 | 1644 | DEFUN ("number-to-string", Fnumber_to_string, Snumber_to_string, 1, 1, 0, |
25e40a4b JB |
1645 | "Convert NUM to a string by printing it in decimal.\n\ |
1646 | Uses a minus sign if negative.\n\ | |
1647 | NUM may be an integer or a floating point number.") | |
7921925c JB |
1648 | (num) |
1649 | Lisp_Object num; | |
1650 | { | |
1651 | char buffer[20]; | |
1652 | ||
1653 | #ifndef LISP_FLOAT_TYPE | |
1654 | CHECK_NUMBER (num, 0); | |
1655 | #else | |
1656 | CHECK_NUMBER_OR_FLOAT (num, 0); | |
1657 | ||
e9ebc175 | 1658 | if (FLOATP (num)) |
7921925c JB |
1659 | { |
1660 | char pigbuf[350]; /* see comments in float_to_string */ | |
1661 | ||
1662 | float_to_string (pigbuf, XFLOAT(num)->data); | |
7403b5c8 | 1663 | return build_string (pigbuf); |
7921925c JB |
1664 | } |
1665 | #endif /* LISP_FLOAT_TYPE */ | |
1666 | ||
1667 | sprintf (buffer, "%d", XINT (num)); | |
1668 | return build_string (buffer); | |
1669 | } | |
1670 | ||
25e40a4b JB |
1671 | DEFUN ("string-to-number", Fstring_to_number, Sstring_to_number, 1, 1, 0, |
1672 | "Convert STRING to a number by parsing it as a decimal number.\n\ | |
1c1c17eb RS |
1673 | This parses both integers and floating point numbers.\n\ |
1674 | It ignores leading spaces and tabs.") | |
7921925c JB |
1675 | (str) |
1676 | register Lisp_Object str; | |
1677 | { | |
0a3e4d65 | 1678 | unsigned char *p; |
25e40a4b | 1679 | |
7921925c JB |
1680 | CHECK_STRING (str, 0); |
1681 | ||
25e40a4b JB |
1682 | p = XSTRING (str)->data; |
1683 | ||
1684 | /* Skip any whitespace at the front of the number. Some versions of | |
1685 | atoi do this anyway, so we might as well make Emacs lisp consistent. */ | |
0a3e4d65 | 1686 | while (*p == ' ' || *p == '\t') |
25e40a4b JB |
1687 | p++; |
1688 | ||
7921925c | 1689 | #ifdef LISP_FLOAT_TYPE |
25e40a4b JB |
1690 | if (isfloat_string (p)) |
1691 | return make_float (atof (p)); | |
7921925c JB |
1692 | #endif /* LISP_FLOAT_TYPE */ |
1693 | ||
25e40a4b | 1694 | return make_number (atoi (p)); |
7921925c | 1695 | } |
7403b5c8 | 1696 | \f |
7921925c JB |
1697 | enum arithop |
1698 | { Aadd, Asub, Amult, Adiv, Alogand, Alogior, Alogxor, Amax, Amin }; | |
1699 | ||
b06faa91 JB |
1700 | extern Lisp_Object float_arith_driver (); |
1701 | ||
7921925c | 1702 | Lisp_Object |
87fbf902 | 1703 | arith_driver (code, nargs, args) |
7921925c JB |
1704 | enum arithop code; |
1705 | int nargs; | |
1706 | register Lisp_Object *args; | |
1707 | { | |
1708 | register Lisp_Object val; | |
1709 | register int argnum; | |
5260234d RS |
1710 | register EMACS_INT accum; |
1711 | register EMACS_INT next; | |
7921925c | 1712 | |
0220c518 | 1713 | switch (SWITCH_ENUM_CAST (code)) |
7921925c JB |
1714 | { |
1715 | case Alogior: | |
1716 | case Alogxor: | |
1717 | case Aadd: | |
1718 | case Asub: | |
1719 | accum = 0; break; | |
1720 | case Amult: | |
1721 | accum = 1; break; | |
1722 | case Alogand: | |
1723 | accum = -1; break; | |
1724 | } | |
1725 | ||
1726 | for (argnum = 0; argnum < nargs; argnum++) | |
1727 | { | |
1728 | val = args[argnum]; /* using args[argnum] as argument to CHECK_NUMBER_... */ | |
1729 | #ifdef LISP_FLOAT_TYPE | |
1730 | CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (val, argnum); | |
1731 | ||
e9ebc175 | 1732 | if (FLOATP (val)) /* time to do serious math */ |
7921925c JB |
1733 | return (float_arith_driver ((double) accum, argnum, code, |
1734 | nargs, args)); | |
1735 | #else | |
1736 | CHECK_NUMBER_COERCE_MARKER (val, argnum); | |
1737 | #endif /* LISP_FLOAT_TYPE */ | |
1738 | args[argnum] = val; /* runs into a compiler bug. */ | |
1739 | next = XINT (args[argnum]); | |
0220c518 | 1740 | switch (SWITCH_ENUM_CAST (code)) |
7921925c JB |
1741 | { |
1742 | case Aadd: accum += next; break; | |
1743 | case Asub: | |
1744 | if (!argnum && nargs != 1) | |
1745 | next = - next; | |
1746 | accum -= next; | |
1747 | break; | |
1748 | case Amult: accum *= next; break; | |
1749 | case Adiv: | |
1750 | if (!argnum) accum = next; | |
87fbf902 RS |
1751 | else |
1752 | { | |
1753 | if (next == 0) | |
1754 | Fsignal (Qarith_error, Qnil); | |
1755 | accum /= next; | |
1756 | } | |
7921925c JB |
1757 | break; |
1758 | case Alogand: accum &= next; break; | |
1759 | case Alogior: accum |= next; break; | |
1760 | case Alogxor: accum ^= next; break; | |
1761 | case Amax: if (!argnum || next > accum) accum = next; break; | |
1762 | case Amin: if (!argnum || next < accum) accum = next; break; | |
1763 | } | |
1764 | } | |
1765 | ||
f187f1f7 | 1766 | XSETINT (val, accum); |
7921925c JB |
1767 | return val; |
1768 | } | |
1769 | ||
1770 | #ifdef LISP_FLOAT_TYPE | |
1a2f2d33 KH |
1771 | |
1772 | #undef isnan | |
1773 | #define isnan(x) ((x) != (x)) | |
1774 | ||
7921925c JB |
1775 | Lisp_Object |
1776 | float_arith_driver (accum, argnum, code, nargs, args) | |
1777 | double accum; | |
1778 | register int argnum; | |
1779 | enum arithop code; | |
1780 | int nargs; | |
1781 | register Lisp_Object *args; | |
1782 | { | |
1783 | register Lisp_Object val; | |
1784 | double next; | |
7403b5c8 | 1785 | |
7921925c JB |
1786 | for (; argnum < nargs; argnum++) |
1787 | { | |
1788 | val = args[argnum]; /* using args[argnum] as argument to CHECK_NUMBER_... */ | |
1789 | CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (val, argnum); | |
1790 | ||
e9ebc175 | 1791 | if (FLOATP (val)) |
7921925c JB |
1792 | { |
1793 | next = XFLOAT (val)->data; | |
1794 | } | |
1795 | else | |
1796 | { | |
1797 | args[argnum] = val; /* runs into a compiler bug. */ | |
1798 | next = XINT (args[argnum]); | |
1799 | } | |
0220c518 | 1800 | switch (SWITCH_ENUM_CAST (code)) |
7921925c JB |
1801 | { |
1802 | case Aadd: | |
1803 | accum += next; | |
1804 | break; | |
1805 | case Asub: | |
1806 | if (!argnum && nargs != 1) | |
1807 | next = - next; | |
1808 | accum -= next; | |
1809 | break; | |
1810 | case Amult: | |
1811 | accum *= next; | |
1812 | break; | |
1813 | case Adiv: | |
1814 | if (!argnum) | |
1815 | accum = next; | |
1816 | else | |
87fbf902 RS |
1817 | { |
1818 | if (next == 0) | |
1819 | Fsignal (Qarith_error, Qnil); | |
1820 | accum /= next; | |
1821 | } | |
7921925c JB |
1822 | break; |
1823 | case Alogand: | |
1824 | case Alogior: | |
1825 | case Alogxor: | |
1826 | return wrong_type_argument (Qinteger_or_marker_p, val); | |
1827 | case Amax: | |
1a2f2d33 | 1828 | if (!argnum || isnan (next) || next > accum) |
7921925c JB |
1829 | accum = next; |
1830 | break; | |
1831 | case Amin: | |
1a2f2d33 | 1832 | if (!argnum || isnan (next) || next < accum) |
7921925c JB |
1833 | accum = next; |
1834 | break; | |
1835 | } | |
1836 | } | |
1837 | ||
1838 | return make_float (accum); | |
1839 | } | |
1840 | #endif /* LISP_FLOAT_TYPE */ | |
1841 | ||
1842 | DEFUN ("+", Fplus, Splus, 0, MANY, 0, | |
1843 | "Return sum of any number of arguments, which are numbers or markers.") | |
1844 | (nargs, args) | |
1845 | int nargs; | |
1846 | Lisp_Object *args; | |
1847 | { | |
1848 | return arith_driver (Aadd, nargs, args); | |
1849 | } | |
1850 | ||
1851 | DEFUN ("-", Fminus, Sminus, 0, MANY, 0, | |
1852 | "Negate number or subtract numbers or markers.\n\ | |
1853 | With one arg, negates it. With more than one arg,\n\ | |
1854 | subtracts all but the first from the first.") | |
1855 | (nargs, args) | |
1856 | int nargs; | |
1857 | Lisp_Object *args; | |
1858 | { | |
1859 | return arith_driver (Asub, nargs, args); | |
1860 | } | |
1861 | ||
1862 | DEFUN ("*", Ftimes, Stimes, 0, MANY, 0, | |
1863 | "Returns product of any number of arguments, which are numbers or markers.") | |
1864 | (nargs, args) | |
1865 | int nargs; | |
1866 | Lisp_Object *args; | |
1867 | { | |
1868 | return arith_driver (Amult, nargs, args); | |
1869 | } | |
1870 | ||
1871 | DEFUN ("/", Fquo, Squo, 2, MANY, 0, | |
1872 | "Returns first argument divided by all the remaining arguments.\n\ | |
1873 | The arguments must be numbers or markers.") | |
1874 | (nargs, args) | |
1875 | int nargs; | |
1876 | Lisp_Object *args; | |
1877 | { | |
1878 | return arith_driver (Adiv, nargs, args); | |
1879 | } | |
1880 | ||
1881 | DEFUN ("%", Frem, Srem, 2, 2, 0, | |
1882 | "Returns remainder of first arg divided by second.\n\ | |
aa29f9b9 | 1883 | Both must be integers or markers.") |
7921925c JB |
1884 | (num1, num2) |
1885 | register Lisp_Object num1, num2; | |
1886 | { | |
1887 | Lisp_Object val; | |
1888 | ||
7921925c JB |
1889 | CHECK_NUMBER_COERCE_MARKER (num1, 0); |
1890 | CHECK_NUMBER_COERCE_MARKER (num2, 1); | |
7921925c | 1891 | |
87fbf902 RS |
1892 | if (XFASTINT (num2) == 0) |
1893 | Fsignal (Qarith_error, Qnil); | |
1894 | ||
f187f1f7 | 1895 | XSETINT (val, XINT (num1) % XINT (num2)); |
7921925c JB |
1896 | return val; |
1897 | } | |
1898 | ||
1d66a5fa KH |
1899 | #ifndef HAVE_FMOD |
1900 | double | |
1901 | fmod (f1, f2) | |
1902 | double f1, f2; | |
1903 | { | |
1904 | #ifdef HAVE_DREM /* Some systems use this non-standard name. */ | |
1905 | return (drem (f1, f2)); | |
1906 | #else /* Other systems don't seem to have it at all. */ | |
1907 | return (f1 - f2 * floor (f1/f2)); | |
1908 | #endif | |
1909 | } | |
1910 | #endif /* ! HAVE_FMOD */ | |
1911 | ||
44fa9da5 PE |
1912 | DEFUN ("mod", Fmod, Smod, 2, 2, 0, |
1913 | "Returns X modulo Y.\n\ | |
1914 | The result falls between zero (inclusive) and Y (exclusive).\n\ | |
1915 | Both X and Y must be numbers or markers.") | |
1916 | (num1, num2) | |
1917 | register Lisp_Object num1, num2; | |
1918 | { | |
1919 | Lisp_Object val; | |
5260234d | 1920 | EMACS_INT i1, i2; |
44fa9da5 PE |
1921 | |
1922 | #ifdef LISP_FLOAT_TYPE | |
1923 | CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (num1, 0); | |
1924 | CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (num2, 1); | |
1925 | ||
e9ebc175 | 1926 | if (FLOATP (num1) || FLOATP (num2)) |
44fa9da5 PE |
1927 | { |
1928 | double f1, f2; | |
1929 | ||
e9ebc175 KH |
1930 | f1 = FLOATP (num1) ? XFLOAT (num1)->data : XINT (num1); |
1931 | f2 = FLOATP (num2) ? XFLOAT (num2)->data : XINT (num2); | |
44fa9da5 PE |
1932 | if (f2 == 0) |
1933 | Fsignal (Qarith_error, Qnil); | |
1934 | ||
44fa9da5 | 1935 | f1 = fmod (f1, f2); |
44fa9da5 PE |
1936 | /* If the "remainder" comes out with the wrong sign, fix it. */ |
1937 | if ((f1 < 0) != (f2 < 0)) | |
1938 | f1 += f2; | |
1939 | return (make_float (f1)); | |
1940 | } | |
1941 | #else /* not LISP_FLOAT_TYPE */ | |
1942 | CHECK_NUMBER_COERCE_MARKER (num1, 0); | |
1943 | CHECK_NUMBER_COERCE_MARKER (num2, 1); | |
1944 | #endif /* not LISP_FLOAT_TYPE */ | |
1945 | ||
1946 | i1 = XINT (num1); | |
1947 | i2 = XINT (num2); | |
1948 | ||
1949 | if (i2 == 0) | |
1950 | Fsignal (Qarith_error, Qnil); | |
7403b5c8 | 1951 | |
44fa9da5 PE |
1952 | i1 %= i2; |
1953 | ||
1954 | /* If the "remainder" comes out with the wrong sign, fix it. */ | |
04f7ec69 | 1955 | if (i2 < 0 ? i1 > 0 : i1 < 0) |
44fa9da5 PE |
1956 | i1 += i2; |
1957 | ||
f187f1f7 | 1958 | XSETINT (val, i1); |
44fa9da5 PE |
1959 | return val; |
1960 | } | |
1961 | ||
7921925c JB |
1962 | DEFUN ("max", Fmax, Smax, 1, MANY, 0, |
1963 | "Return largest of all the arguments (which must be numbers or markers).\n\ | |
1964 | The value is always a number; markers are converted to numbers.") | |
1965 | (nargs, args) | |
1966 | int nargs; | |
1967 | Lisp_Object *args; | |
1968 | { | |
1969 | return arith_driver (Amax, nargs, args); | |
1970 | } | |
1971 | ||
1972 | DEFUN ("min", Fmin, Smin, 1, MANY, 0, | |
1973 | "Return smallest of all the arguments (which must be numbers or markers).\n\ | |
1974 | The value is always a number; markers are converted to numbers.") | |
1975 | (nargs, args) | |
1976 | int nargs; | |
1977 | Lisp_Object *args; | |
1978 | { | |
1979 | return arith_driver (Amin, nargs, args); | |
1980 | } | |
1981 | ||
1982 | DEFUN ("logand", Flogand, Slogand, 0, MANY, 0, | |
1983 | "Return bitwise-and of all the arguments.\n\ | |
1984 | Arguments may be integers, or markers converted to integers.") | |
1985 | (nargs, args) | |
1986 | int nargs; | |
1987 | Lisp_Object *args; | |
1988 | { | |
1989 | return arith_driver (Alogand, nargs, args); | |
1990 | } | |
1991 | ||
1992 | DEFUN ("logior", Flogior, Slogior, 0, MANY, 0, | |
1993 | "Return bitwise-or of all the arguments.\n\ | |
1994 | Arguments may be integers, or markers converted to integers.") | |
1995 | (nargs, args) | |
1996 | int nargs; | |
1997 | Lisp_Object *args; | |
1998 | { | |
1999 | return arith_driver (Alogior, nargs, args); | |
2000 | } | |
2001 | ||
2002 | DEFUN ("logxor", Flogxor, Slogxor, 0, MANY, 0, | |
2003 | "Return bitwise-exclusive-or of all the arguments.\n\ | |
2004 | Arguments may be integers, or markers converted to integers.") | |
2005 | (nargs, args) | |
2006 | int nargs; | |
2007 | Lisp_Object *args; | |
2008 | { | |
2009 | return arith_driver (Alogxor, nargs, args); | |
2010 | } | |
2011 | ||
2012 | DEFUN ("ash", Fash, Sash, 2, 2, 0, | |
2013 | "Return VALUE with its bits shifted left by COUNT.\n\ | |
2014 | If COUNT is negative, shifting is actually to the right.\n\ | |
2015 | In this case, the sign bit is duplicated.") | |
3b9f7964 RS |
2016 | (value, count) |
2017 | register Lisp_Object value, count; | |
7921925c JB |
2018 | { |
2019 | register Lisp_Object val; | |
2020 | ||
3d9652eb RS |
2021 | CHECK_NUMBER (value, 0); |
2022 | CHECK_NUMBER (count, 1); | |
7921925c | 2023 | |
3d9652eb RS |
2024 | if (XINT (count) > 0) |
2025 | XSETINT (val, XINT (value) << XFASTINT (count)); | |
7921925c | 2026 | else |
3d9652eb | 2027 | XSETINT (val, XINT (value) >> -XINT (count)); |
7921925c JB |
2028 | return val; |
2029 | } | |
2030 | ||
2031 | DEFUN ("lsh", Flsh, Slsh, 2, 2, 0, | |
2032 | "Return VALUE with its bits shifted left by COUNT.\n\ | |
2033 | If COUNT is negative, shifting is actually to the right.\n\ | |
2034 | In this case, zeros are shifted in on the left.") | |
3d9652eb RS |
2035 | (value, count) |
2036 | register Lisp_Object value, count; | |
7921925c JB |
2037 | { |
2038 | register Lisp_Object val; | |
2039 | ||
3d9652eb RS |
2040 | CHECK_NUMBER (value, 0); |
2041 | CHECK_NUMBER (count, 1); | |
7921925c | 2042 | |
3d9652eb RS |
2043 | if (XINT (count) > 0) |
2044 | XSETINT (val, (EMACS_UINT) XUINT (value) << XFASTINT (count)); | |
7921925c | 2045 | else |
3d9652eb | 2046 | XSETINT (val, (EMACS_UINT) XUINT (value) >> -XINT (count)); |
7921925c JB |
2047 | return val; |
2048 | } | |
2049 | ||
2050 | DEFUN ("1+", Fadd1, Sadd1, 1, 1, 0, | |
2051 | "Return NUMBER plus one. NUMBER may be a number or a marker.\n\ | |
2052 | Markers are converted to integers.") | |
2053 | (num) | |
2054 | register Lisp_Object num; | |
2055 | { | |
2056 | #ifdef LISP_FLOAT_TYPE | |
2057 | CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (num, 0); | |
2058 | ||
e9ebc175 | 2059 | if (FLOATP (num)) |
7921925c JB |
2060 | return (make_float (1.0 + XFLOAT (num)->data)); |
2061 | #else | |
2062 | CHECK_NUMBER_COERCE_MARKER (num, 0); | |
2063 | #endif /* LISP_FLOAT_TYPE */ | |
2064 | ||
702672da | 2065 | XSETINT (num, XINT (num) + 1); |
7921925c JB |
2066 | return num; |
2067 | } | |
2068 | ||
2069 | DEFUN ("1-", Fsub1, Ssub1, 1, 1, 0, | |
2070 | "Return NUMBER minus one. NUMBER may be a number or a marker.\n\ | |
2071 | Markers are converted to integers.") | |
2072 | (num) | |
2073 | register Lisp_Object num; | |
2074 | { | |
2075 | #ifdef LISP_FLOAT_TYPE | |
2076 | CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (num, 0); | |
2077 | ||
e9ebc175 | 2078 | if (FLOATP (num)) |
7921925c JB |
2079 | return (make_float (-1.0 + XFLOAT (num)->data)); |
2080 | #else | |
2081 | CHECK_NUMBER_COERCE_MARKER (num, 0); | |
2082 | #endif /* LISP_FLOAT_TYPE */ | |
2083 | ||
702672da | 2084 | XSETINT (num, XINT (num) - 1); |
7921925c JB |
2085 | return num; |
2086 | } | |
2087 | ||
2088 | DEFUN ("lognot", Flognot, Slognot, 1, 1, 0, | |
2089 | "Return the bitwise complement of ARG. ARG must be an integer.") | |
2090 | (num) | |
2091 | register Lisp_Object num; | |
2092 | { | |
2093 | CHECK_NUMBER (num, 0); | |
702672da | 2094 | XSETINT (num, ~XINT (num)); |
7921925c JB |
2095 | return num; |
2096 | } | |
2097 | \f | |
2098 | void | |
2099 | syms_of_data () | |
2100 | { | |
6315e761 RS |
2101 | Lisp_Object error_tail, arith_tail; |
2102 | ||
7921925c JB |
2103 | Qquote = intern ("quote"); |
2104 | Qlambda = intern ("lambda"); | |
2105 | Qsubr = intern ("subr"); | |
2106 | Qerror_conditions = intern ("error-conditions"); | |
2107 | Qerror_message = intern ("error-message"); | |
2108 | Qtop_level = intern ("top-level"); | |
2109 | ||
2110 | Qerror = intern ("error"); | |
2111 | Qquit = intern ("quit"); | |
2112 | Qwrong_type_argument = intern ("wrong-type-argument"); | |
2113 | Qargs_out_of_range = intern ("args-out-of-range"); | |
2114 | Qvoid_function = intern ("void-function"); | |
ffd56f97 | 2115 | Qcyclic_function_indirection = intern ("cyclic-function-indirection"); |
7921925c JB |
2116 | Qvoid_variable = intern ("void-variable"); |
2117 | Qsetting_constant = intern ("setting-constant"); | |
2118 | Qinvalid_read_syntax = intern ("invalid-read-syntax"); | |
2119 | ||
2120 | Qinvalid_function = intern ("invalid-function"); | |
2121 | Qwrong_number_of_arguments = intern ("wrong-number-of-arguments"); | |
2122 | Qno_catch = intern ("no-catch"); | |
2123 | Qend_of_file = intern ("end-of-file"); | |
2124 | Qarith_error = intern ("arith-error"); | |
2125 | Qbeginning_of_buffer = intern ("beginning-of-buffer"); | |
2126 | Qend_of_buffer = intern ("end-of-buffer"); | |
2127 | Qbuffer_read_only = intern ("buffer-read-only"); | |
3b8819d6 | 2128 | Qmark_inactive = intern ("mark-inactive"); |
7921925c JB |
2129 | |
2130 | Qlistp = intern ("listp"); | |
2131 | Qconsp = intern ("consp"); | |
2132 | Qsymbolp = intern ("symbolp"); | |
2133 | Qintegerp = intern ("integerp"); | |
2134 | Qnatnump = intern ("natnump"); | |
8e86942b | 2135 | Qwholenump = intern ("wholenump"); |
7921925c JB |
2136 | Qstringp = intern ("stringp"); |
2137 | Qarrayp = intern ("arrayp"); | |
2138 | Qsequencep = intern ("sequencep"); | |
2139 | Qbufferp = intern ("bufferp"); | |
2140 | Qvectorp = intern ("vectorp"); | |
2141 | Qchar_or_string_p = intern ("char-or-string-p"); | |
2142 | Qmarkerp = intern ("markerp"); | |
07bd8472 | 2143 | Qbuffer_or_string_p = intern ("buffer-or-string-p"); |
7921925c JB |
2144 | Qinteger_or_marker_p = intern ("integer-or-marker-p"); |
2145 | Qboundp = intern ("boundp"); | |
2146 | Qfboundp = intern ("fboundp"); | |
2147 | ||
2148 | #ifdef LISP_FLOAT_TYPE | |
2149 | Qfloatp = intern ("floatp"); | |
2150 | Qnumberp = intern ("numberp"); | |
2151 | Qnumber_or_marker_p = intern ("number-or-marker-p"); | |
2152 | #endif /* LISP_FLOAT_TYPE */ | |
2153 | ||
2154 | Qcdr = intern ("cdr"); | |
2155 | ||
f845f2c9 | 2156 | /* Handle automatic advice activation */ |
ab297811 RS |
2157 | Qad_advice_info = intern ("ad-advice-info"); |
2158 | Qad_activate = intern ("ad-activate"); | |
f845f2c9 | 2159 | |
6315e761 RS |
2160 | error_tail = Fcons (Qerror, Qnil); |
2161 | ||
7921925c JB |
2162 | /* ERROR is used as a signaler for random errors for which nothing else is right */ |
2163 | ||
2164 | Fput (Qerror, Qerror_conditions, | |
6315e761 | 2165 | error_tail); |
7921925c JB |
2166 | Fput (Qerror, Qerror_message, |
2167 | build_string ("error")); | |
2168 | ||
2169 | Fput (Qquit, Qerror_conditions, | |
2170 | Fcons (Qquit, Qnil)); | |
2171 | Fput (Qquit, Qerror_message, | |
2172 | build_string ("Quit")); | |
2173 | ||
2174 | Fput (Qwrong_type_argument, Qerror_conditions, | |
6315e761 | 2175 | Fcons (Qwrong_type_argument, error_tail)); |
7921925c JB |
2176 | Fput (Qwrong_type_argument, Qerror_message, |
2177 | build_string ("Wrong type argument")); | |
2178 | ||
2179 | Fput (Qargs_out_of_range, Qerror_conditions, | |
6315e761 | 2180 | Fcons (Qargs_out_of_range, error_tail)); |
7921925c JB |
2181 | Fput (Qargs_out_of_range, Qerror_message, |
2182 | build_string ("Args out of range")); | |
2183 | ||
2184 | Fput (Qvoid_function, Qerror_conditions, | |
6315e761 | 2185 | Fcons (Qvoid_function, error_tail)); |
7921925c JB |
2186 | Fput (Qvoid_function, Qerror_message, |
2187 | build_string ("Symbol's function definition is void")); | |
2188 | ||
ffd56f97 | 2189 | Fput (Qcyclic_function_indirection, Qerror_conditions, |
6315e761 | 2190 | Fcons (Qcyclic_function_indirection, error_tail)); |
ffd56f97 JB |
2191 | Fput (Qcyclic_function_indirection, Qerror_message, |
2192 | build_string ("Symbol's chain of function indirections contains a loop")); | |
2193 | ||
7921925c | 2194 | Fput (Qvoid_variable, Qerror_conditions, |
6315e761 | 2195 | Fcons (Qvoid_variable, error_tail)); |
7921925c JB |
2196 | Fput (Qvoid_variable, Qerror_message, |
2197 | build_string ("Symbol's value as variable is void")); | |
2198 | ||
2199 | Fput (Qsetting_constant, Qerror_conditions, | |
6315e761 | 2200 | Fcons (Qsetting_constant, error_tail)); |
7921925c JB |
2201 | Fput (Qsetting_constant, Qerror_message, |
2202 | build_string ("Attempt to set a constant symbol")); | |
2203 | ||
2204 | Fput (Qinvalid_read_syntax, Qerror_conditions, | |
6315e761 | 2205 | Fcons (Qinvalid_read_syntax, error_tail)); |
7921925c JB |
2206 | Fput (Qinvalid_read_syntax, Qerror_message, |
2207 | build_string ("Invalid read syntax")); | |
2208 | ||
2209 | Fput (Qinvalid_function, Qerror_conditions, | |
6315e761 | 2210 | Fcons (Qinvalid_function, error_tail)); |
7921925c JB |
2211 | Fput (Qinvalid_function, Qerror_message, |
2212 | build_string ("Invalid function")); | |
2213 | ||
2214 | Fput (Qwrong_number_of_arguments, Qerror_conditions, | |
6315e761 | 2215 | Fcons (Qwrong_number_of_arguments, error_tail)); |
7921925c JB |
2216 | Fput (Qwrong_number_of_arguments, Qerror_message, |
2217 | build_string ("Wrong number of arguments")); | |
2218 | ||
2219 | Fput (Qno_catch, Qerror_conditions, | |
6315e761 | 2220 | Fcons (Qno_catch, error_tail)); |
7921925c JB |
2221 | Fput (Qno_catch, Qerror_message, |
2222 | build_string ("No catch for tag")); | |
2223 | ||
2224 | Fput (Qend_of_file, Qerror_conditions, | |
6315e761 | 2225 | Fcons (Qend_of_file, error_tail)); |
7921925c JB |
2226 | Fput (Qend_of_file, Qerror_message, |
2227 | build_string ("End of file during parsing")); | |
2228 | ||
6315e761 | 2229 | arith_tail = Fcons (Qarith_error, error_tail); |
7921925c | 2230 | Fput (Qarith_error, Qerror_conditions, |
6315e761 | 2231 | arith_tail); |
7921925c JB |
2232 | Fput (Qarith_error, Qerror_message, |
2233 | build_string ("Arithmetic error")); | |
2234 | ||
2235 | Fput (Qbeginning_of_buffer, Qerror_conditions, | |
6315e761 | 2236 | Fcons (Qbeginning_of_buffer, error_tail)); |
7921925c JB |
2237 | Fput (Qbeginning_of_buffer, Qerror_message, |
2238 | build_string ("Beginning of buffer")); | |
2239 | ||
2240 | Fput (Qend_of_buffer, Qerror_conditions, | |
6315e761 | 2241 | Fcons (Qend_of_buffer, error_tail)); |
7921925c JB |
2242 | Fput (Qend_of_buffer, Qerror_message, |
2243 | build_string ("End of buffer")); | |
2244 | ||
2245 | Fput (Qbuffer_read_only, Qerror_conditions, | |
6315e761 | 2246 | Fcons (Qbuffer_read_only, error_tail)); |
7921925c JB |
2247 | Fput (Qbuffer_read_only, Qerror_message, |
2248 | build_string ("Buffer is read-only")); | |
2249 | ||
6315e761 RS |
2250 | #ifdef LISP_FLOAT_TYPE |
2251 | Qrange_error = intern ("range-error"); | |
2252 | Qdomain_error = intern ("domain-error"); | |
2253 | Qsingularity_error = intern ("singularity-error"); | |
2254 | Qoverflow_error = intern ("overflow-error"); | |
2255 | Qunderflow_error = intern ("underflow-error"); | |
2256 | ||
2257 | Fput (Qdomain_error, Qerror_conditions, | |
2258 | Fcons (Qdomain_error, arith_tail)); | |
2259 | Fput (Qdomain_error, Qerror_message, | |
2260 | build_string ("Arithmetic domain error")); | |
2261 | ||
2262 | Fput (Qrange_error, Qerror_conditions, | |
2263 | Fcons (Qrange_error, arith_tail)); | |
2264 | Fput (Qrange_error, Qerror_message, | |
2265 | build_string ("Arithmetic range error")); | |
2266 | ||
2267 | Fput (Qsingularity_error, Qerror_conditions, | |
2268 | Fcons (Qsingularity_error, Fcons (Qdomain_error, arith_tail))); | |
2269 | Fput (Qsingularity_error, Qerror_message, | |
2270 | build_string ("Arithmetic singularity error")); | |
2271 | ||
2272 | Fput (Qoverflow_error, Qerror_conditions, | |
2273 | Fcons (Qoverflow_error, Fcons (Qdomain_error, arith_tail))); | |
2274 | Fput (Qoverflow_error, Qerror_message, | |
2275 | build_string ("Arithmetic overflow error")); | |
2276 | ||
2277 | Fput (Qunderflow_error, Qerror_conditions, | |
2278 | Fcons (Qunderflow_error, Fcons (Qdomain_error, arith_tail))); | |
2279 | Fput (Qunderflow_error, Qerror_message, | |
2280 | build_string ("Arithmetic underflow error")); | |
2281 | ||
2282 | staticpro (&Qrange_error); | |
2283 | staticpro (&Qdomain_error); | |
2284 | staticpro (&Qsingularity_error); | |
2285 | staticpro (&Qoverflow_error); | |
2286 | staticpro (&Qunderflow_error); | |
2287 | #endif /* LISP_FLOAT_TYPE */ | |
2288 | ||
7921925c JB |
2289 | staticpro (&Qnil); |
2290 | staticpro (&Qt); | |
2291 | staticpro (&Qquote); | |
2292 | staticpro (&Qlambda); | |
2293 | staticpro (&Qsubr); | |
2294 | staticpro (&Qunbound); | |
2295 | staticpro (&Qerror_conditions); | |
2296 | staticpro (&Qerror_message); | |
2297 | staticpro (&Qtop_level); | |
2298 | ||
2299 | staticpro (&Qerror); | |
2300 | staticpro (&Qquit); | |
2301 | staticpro (&Qwrong_type_argument); | |
2302 | staticpro (&Qargs_out_of_range); | |
2303 | staticpro (&Qvoid_function); | |
ffd56f97 | 2304 | staticpro (&Qcyclic_function_indirection); |
7921925c JB |
2305 | staticpro (&Qvoid_variable); |
2306 | staticpro (&Qsetting_constant); | |
2307 | staticpro (&Qinvalid_read_syntax); | |
2308 | staticpro (&Qwrong_number_of_arguments); | |
2309 | staticpro (&Qinvalid_function); | |
2310 | staticpro (&Qno_catch); | |
2311 | staticpro (&Qend_of_file); | |
2312 | staticpro (&Qarith_error); | |
2313 | staticpro (&Qbeginning_of_buffer); | |
2314 | staticpro (&Qend_of_buffer); | |
2315 | staticpro (&Qbuffer_read_only); | |
638b77e6 | 2316 | staticpro (&Qmark_inactive); |
7921925c JB |
2317 | |
2318 | staticpro (&Qlistp); | |
2319 | staticpro (&Qconsp); | |
2320 | staticpro (&Qsymbolp); | |
2321 | staticpro (&Qintegerp); | |
2322 | staticpro (&Qnatnump); | |
8e86942b | 2323 | staticpro (&Qwholenump); |
7921925c JB |
2324 | staticpro (&Qstringp); |
2325 | staticpro (&Qarrayp); | |
2326 | staticpro (&Qsequencep); | |
2327 | staticpro (&Qbufferp); | |
2328 | staticpro (&Qvectorp); | |
2329 | staticpro (&Qchar_or_string_p); | |
2330 | staticpro (&Qmarkerp); | |
07bd8472 | 2331 | staticpro (&Qbuffer_or_string_p); |
7921925c JB |
2332 | staticpro (&Qinteger_or_marker_p); |
2333 | #ifdef LISP_FLOAT_TYPE | |
2334 | staticpro (&Qfloatp); | |
464f8898 RS |
2335 | staticpro (&Qnumberp); |
2336 | staticpro (&Qnumber_or_marker_p); | |
7921925c JB |
2337 | #endif /* LISP_FLOAT_TYPE */ |
2338 | ||
2339 | staticpro (&Qboundp); | |
2340 | staticpro (&Qfboundp); | |
2341 | staticpro (&Qcdr); | |
ab297811 RS |
2342 | staticpro (&Qad_advice_info); |
2343 | staticpro (&Qad_activate); | |
7921925c | 2344 | |
39bcc759 RS |
2345 | /* Types that type-of returns. */ |
2346 | Qinteger = intern ("integer"); | |
2347 | Qsymbol = intern ("symbol"); | |
2348 | Qstring = intern ("string"); | |
2349 | Qcons = intern ("cons"); | |
2350 | Qmarker = intern ("marker"); | |
2351 | Qoverlay = intern ("overlay"); | |
2352 | Qfloat = intern ("float"); | |
2353 | Qwindow_configuration = intern ("window-configuration"); | |
2354 | Qprocess = intern ("process"); | |
2355 | Qwindow = intern ("window"); | |
2356 | /* Qsubr = intern ("subr"); */ | |
2357 | Qcompiled_function = intern ("compiled-function"); | |
2358 | Qbuffer = intern ("buffer"); | |
2359 | Qframe = intern ("frame"); | |
2360 | Qvector = intern ("vector"); | |
2361 | ||
2362 | staticpro (&Qinteger); | |
2363 | staticpro (&Qsymbol); | |
2364 | staticpro (&Qstring); | |
2365 | staticpro (&Qcons); | |
2366 | staticpro (&Qmarker); | |
2367 | staticpro (&Qoverlay); | |
2368 | staticpro (&Qfloat); | |
2369 | staticpro (&Qwindow_configuration); | |
2370 | staticpro (&Qprocess); | |
2371 | staticpro (&Qwindow); | |
2372 | /* staticpro (&Qsubr); */ | |
2373 | staticpro (&Qcompiled_function); | |
2374 | staticpro (&Qbuffer); | |
2375 | staticpro (&Qframe); | |
2376 | staticpro (&Qvector); | |
2377 | ||
7921925c JB |
2378 | defsubr (&Seq); |
2379 | defsubr (&Snull); | |
39bcc759 | 2380 | defsubr (&Stype_of); |
7921925c JB |
2381 | defsubr (&Slistp); |
2382 | defsubr (&Snlistp); | |
2383 | defsubr (&Sconsp); | |
2384 | defsubr (&Satom); | |
2385 | defsubr (&Sintegerp); | |
464f8898 | 2386 | defsubr (&Sinteger_or_marker_p); |
7921925c JB |
2387 | defsubr (&Snumberp); |
2388 | defsubr (&Snumber_or_marker_p); | |
464f8898 RS |
2389 | #ifdef LISP_FLOAT_TYPE |
2390 | defsubr (&Sfloatp); | |
7921925c JB |
2391 | #endif /* LISP_FLOAT_TYPE */ |
2392 | defsubr (&Snatnump); | |
2393 | defsubr (&Ssymbolp); | |
2394 | defsubr (&Sstringp); | |
2395 | defsubr (&Svectorp); | |
2396 | defsubr (&Sarrayp); | |
2397 | defsubr (&Ssequencep); | |
2398 | defsubr (&Sbufferp); | |
2399 | defsubr (&Smarkerp); | |
7921925c | 2400 | defsubr (&Ssubrp); |
dbc4e1c1 | 2401 | defsubr (&Sbyte_code_function_p); |
7921925c JB |
2402 | defsubr (&Schar_or_string_p); |
2403 | defsubr (&Scar); | |
2404 | defsubr (&Scdr); | |
2405 | defsubr (&Scar_safe); | |
2406 | defsubr (&Scdr_safe); | |
2407 | defsubr (&Ssetcar); | |
2408 | defsubr (&Ssetcdr); | |
2409 | defsubr (&Ssymbol_function); | |
ffd56f97 | 2410 | defsubr (&Sindirect_function); |
7921925c JB |
2411 | defsubr (&Ssymbol_plist); |
2412 | defsubr (&Ssymbol_name); | |
2413 | defsubr (&Smakunbound); | |
2414 | defsubr (&Sfmakunbound); | |
2415 | defsubr (&Sboundp); | |
2416 | defsubr (&Sfboundp); | |
2417 | defsubr (&Sfset); | |
80df38a2 | 2418 | defsubr (&Sdefalias); |
d9bcdb34 | 2419 | defsubr (&Sdefine_function); |
7921925c JB |
2420 | defsubr (&Ssetplist); |
2421 | defsubr (&Ssymbol_value); | |
2422 | defsubr (&Sset); | |
2423 | defsubr (&Sdefault_boundp); | |
2424 | defsubr (&Sdefault_value); | |
2425 | defsubr (&Sset_default); | |
2426 | defsubr (&Ssetq_default); | |
2427 | defsubr (&Smake_variable_buffer_local); | |
2428 | defsubr (&Smake_local_variable); | |
2429 | defsubr (&Skill_local_variable); | |
62476adc | 2430 | defsubr (&Slocal_variable_p); |
7921925c JB |
2431 | defsubr (&Saref); |
2432 | defsubr (&Saset); | |
f2980264 | 2433 | defsubr (&Snumber_to_string); |
25e40a4b | 2434 | defsubr (&Sstring_to_number); |
7921925c JB |
2435 | defsubr (&Seqlsign); |
2436 | defsubr (&Slss); | |
2437 | defsubr (&Sgtr); | |
2438 | defsubr (&Sleq); | |
2439 | defsubr (&Sgeq); | |
2440 | defsubr (&Sneq); | |
2441 | defsubr (&Szerop); | |
2442 | defsubr (&Splus); | |
2443 | defsubr (&Sminus); | |
2444 | defsubr (&Stimes); | |
2445 | defsubr (&Squo); | |
2446 | defsubr (&Srem); | |
44fa9da5 | 2447 | defsubr (&Smod); |
7921925c JB |
2448 | defsubr (&Smax); |
2449 | defsubr (&Smin); | |
2450 | defsubr (&Slogand); | |
2451 | defsubr (&Slogior); | |
2452 | defsubr (&Slogxor); | |
2453 | defsubr (&Slsh); | |
2454 | defsubr (&Sash); | |
2455 | defsubr (&Sadd1); | |
2456 | defsubr (&Ssub1); | |
2457 | defsubr (&Slognot); | |
8e86942b | 2458 | |
c80bd143 | 2459 | XSYMBOL (Qwholenump)->function = XSYMBOL (Qnatnump)->function; |
7921925c JB |
2460 | } |
2461 | ||
a33ef3ab | 2462 | SIGTYPE |
7921925c JB |
2463 | arith_error (signo) |
2464 | int signo; | |
2465 | { | |
2466 | #ifdef USG | |
2467 | /* USG systems forget handlers when they are used; | |
2468 | must reestablish each time */ | |
2469 | signal (signo, arith_error); | |
2470 | #endif /* USG */ | |
2471 | #ifdef VMS | |
2472 | /* VMS systems are like USG. */ | |
2473 | signal (signo, arith_error); | |
2474 | #endif /* VMS */ | |
2475 | #ifdef BSD4_1 | |
2476 | sigrelse (SIGFPE); | |
2477 | #else /* not BSD4_1 */ | |
e065a56e | 2478 | sigsetmask (SIGEMPTYMASK); |
7921925c JB |
2479 | #endif /* not BSD4_1 */ |
2480 | ||
2481 | Fsignal (Qarith_error, Qnil); | |
2482 | } | |
2483 | ||
2484 | init_data () | |
2485 | { | |
2486 | /* Don't do this if just dumping out. | |
2487 | We don't want to call `signal' in this case | |
2488 | so that we don't have trouble with dumping | |
2489 | signal-delivering routines in an inconsistent state. */ | |
2490 | #ifndef CANNOT_DUMP | |
2491 | if (!initialized) | |
2492 | return; | |
2493 | #endif /* CANNOT_DUMP */ | |
2494 | signal (SIGFPE, arith_error); | |
7403b5c8 | 2495 | |
7921925c JB |
2496 | #ifdef uts |
2497 | signal (SIGEMT, arith_error); | |
2498 | #endif /* uts */ | |
2499 | } |