Commit | Line | Data |
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7921925c | 1 | /* Primitive operations on Lisp data types for GNU Emacs Lisp interpreter. |
6b61353c | 2 | Copyright (C) 1985,86,88,93,94,95,97,98,99, 2000, 2001, 03, 2004 |
7a283f36 | 3 | Free Software Foundation, Inc. |
7921925c JB |
4 | |
5 | This file is part of GNU Emacs. | |
6 | ||
7 | GNU Emacs is free software; you can redistribute it and/or modify | |
8 | it under the terms of the GNU General Public License as published by | |
7c938215 | 9 | the Free Software Foundation; either version 2, or (at your option) |
7921925c JB |
10 | any later version. |
11 | ||
12 | GNU Emacs is distributed in the hope that it will be useful, | |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
16 | ||
17 | You should have received a copy of the GNU General Public License | |
18 | along with GNU Emacs; see the file COPYING. If not, write to | |
3b7ad313 EN |
19 | the Free Software Foundation, Inc., 59 Temple Place - Suite 330, |
20 | Boston, MA 02111-1307, USA. */ | |
7921925c JB |
21 | |
22 | ||
18160b98 | 23 | #include <config.h> |
68c45bf0 | 24 | #include <signal.h> |
dd8daec5 | 25 | #include <stdio.h> |
7921925c | 26 | #include "lisp.h" |
29eab336 | 27 | #include "puresize.h" |
e6e1f521 | 28 | #include "character.h" |
7921925c | 29 | #include "buffer.h" |
077d751f | 30 | #include "keyboard.h" |
b0c2d1c6 | 31 | #include "frame.h" |
a44804c2 | 32 | #include "syssignal.h" |
fb8e9847 | 33 | |
93b91208 | 34 | #ifdef STDC_HEADERS |
2f261542 | 35 | #include <float.h> |
93b91208 | 36 | #endif |
defa77b5 | 37 | |
ad8d56b9 PE |
38 | /* If IEEE_FLOATING_POINT isn't defined, default it from FLT_*. */ |
39 | #ifndef IEEE_FLOATING_POINT | |
40 | #if (FLT_RADIX == 2 && FLT_MANT_DIG == 24 \ | |
41 | && FLT_MIN_EXP == -125 && FLT_MAX_EXP == 128) | |
42 | #define IEEE_FLOATING_POINT 1 | |
43 | #else | |
44 | #define IEEE_FLOATING_POINT 0 | |
45 | #endif | |
46 | #endif | |
47 | ||
defa77b5 RS |
48 | /* Work around a problem that happens because math.h on hpux 7 |
49 | defines two static variables--which, in Emacs, are not really static, | |
50 | because `static' is defined as nothing. The problem is that they are | |
51 | here, in floatfns.c, and in lread.c. | |
52 | These macros prevent the name conflict. */ | |
53 | #if defined (HPUX) && !defined (HPUX8) | |
54 | #define _MAXLDBL data_c_maxldbl | |
55 | #define _NMAXLDBL data_c_nmaxldbl | |
56 | #endif | |
57 | ||
7921925c | 58 | #include <math.h> |
7921925c | 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; |
13d95cc0 | 68 | Lisp_Object Qcyclic_variable_indirection, Qcircular_list; |
7921925c JB |
69 | Lisp_Object Qsetting_constant, Qinvalid_read_syntax; |
70 | Lisp_Object Qinvalid_function, Qwrong_number_of_arguments, Qno_catch; | |
3b8819d6 | 71 | Lisp_Object Qend_of_file, Qarith_error, Qmark_inactive; |
7921925c | 72 | Lisp_Object Qbeginning_of_buffer, Qend_of_buffer, Qbuffer_read_only; |
8f9f49d7 | 73 | Lisp_Object Qtext_read_only; |
6b61353c | 74 | |
8e86942b | 75 | Lisp_Object Qintegerp, Qnatnump, Qwholenump, Qsymbolp, Qlistp, Qconsp; |
7921925c JB |
76 | Lisp_Object Qstringp, Qarrayp, Qsequencep, Qbufferp; |
77 | Lisp_Object Qchar_or_string_p, Qmarkerp, Qinteger_or_marker_p, Qvectorp; | |
cda9b832 | 78 | Lisp_Object Qbuffer_or_string_p, Qkeywordp; |
7921925c | 79 | Lisp_Object Qboundp, Qfboundp; |
7f0edce7 | 80 | Lisp_Object Qchar_table_p, Qvector_or_char_table_p; |
39bcc759 | 81 | |
7921925c | 82 | Lisp_Object Qcdr; |
c1307a23 | 83 | Lisp_Object Qad_advice_info, Qad_activate_internal; |
7921925c | 84 | |
6315e761 RS |
85 | Lisp_Object Qrange_error, Qdomain_error, Qsingularity_error; |
86 | Lisp_Object Qoverflow_error, Qunderflow_error; | |
87 | ||
464f8898 | 88 | Lisp_Object Qfloatp; |
7921925c | 89 | Lisp_Object Qnumberp, Qnumber_or_marker_p; |
7921925c | 90 | |
6b61353c KH |
91 | Lisp_Object Qinteger; |
92 | static Lisp_Object Qsymbol, Qstring, Qcons, Qmarker, Qoverlay; | |
8313c4e7 KH |
93 | static Lisp_Object Qfloat, Qwindow_configuration, Qwindow; |
94 | Lisp_Object Qprocess; | |
39bcc759 | 95 | static Lisp_Object Qcompiled_function, Qbuffer, Qframe, Qvector; |
81dc5de5 | 96 | static Lisp_Object Qchar_table, Qbool_vector, Qhash_table; |
6f0e897f | 97 | static Lisp_Object Qsubrp, Qmany, Qunevalled; |
39bcc759 | 98 | |
7a283f36 | 99 | static Lisp_Object swap_in_symval_forwarding P_ ((Lisp_Object, Lisp_Object)); |
d02eeab3 | 100 | |
9d113d9d | 101 | Lisp_Object Vmost_positive_fixnum, Vmost_negative_fixnum; |
e6190b11 | 102 | |
13d95cc0 GM |
103 | |
104 | void | |
105 | circular_list_error (list) | |
106 | Lisp_Object list; | |
107 | { | |
108 | Fsignal (Qcircular_list, list); | |
109 | } | |
110 | ||
111 | ||
7921925c JB |
112 | Lisp_Object |
113 | wrong_type_argument (predicate, value) | |
114 | register Lisp_Object predicate, value; | |
115 | { | |
116 | register Lisp_Object tem; | |
117 | do | |
118 | { | |
e1351ff7 RS |
119 | /* If VALUE is not even a valid Lisp object, abort here |
120 | where we can get a backtrace showing where it came from. */ | |
04be3993 | 121 | if ((unsigned int) XGCTYPE (value) >= Lisp_Type_Limit) |
e1351ff7 RS |
122 | abort (); |
123 | ||
7921925c JB |
124 | value = Fsignal (Qwrong_type_argument, Fcons (predicate, Fcons (value, Qnil))); |
125 | tem = call1 (predicate, value); | |
126 | } | |
a33ef3ab | 127 | while (NILP (tem)); |
7921925c JB |
128 | return value; |
129 | } | |
130 | ||
dfcf069d | 131 | void |
7921925c JB |
132 | pure_write_error () |
133 | { | |
134 | error ("Attempt to modify read-only object"); | |
135 | } | |
136 | ||
137 | void | |
138 | args_out_of_range (a1, a2) | |
139 | Lisp_Object a1, a2; | |
140 | { | |
141 | while (1) | |
142 | Fsignal (Qargs_out_of_range, Fcons (a1, Fcons (a2, Qnil))); | |
143 | } | |
144 | ||
145 | void | |
146 | args_out_of_range_3 (a1, a2, a3) | |
147 | Lisp_Object a1, a2, a3; | |
148 | { | |
149 | while (1) | |
150 | Fsignal (Qargs_out_of_range, Fcons (a1, Fcons (a2, Fcons (a3, Qnil)))); | |
151 | } | |
152 | ||
7921925c JB |
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, | |
8c1a1077 PJ |
173 | doc: /* Return t if the two args are the same Lisp object. */) |
174 | (obj1, obj2) | |
7921925c JB |
175 | Lisp_Object obj1, obj2; |
176 | { | |
177 | if (EQ (obj1, obj2)) | |
178 | return Qt; | |
179 | return Qnil; | |
180 | } | |
181 | ||
8c1a1077 PJ |
182 | DEFUN ("null", Fnull, Snull, 1, 1, 0, |
183 | doc: /* Return t if OBJECT is nil. */) | |
184 | (object) | |
39bcc759 | 185 | Lisp_Object object; |
7921925c | 186 | { |
39bcc759 | 187 | if (NILP (object)) |
7921925c JB |
188 | return Qt; |
189 | return Qnil; | |
190 | } | |
191 | ||
39bcc759 | 192 | DEFUN ("type-of", Ftype_of, Stype_of, 1, 1, 0, |
8c1a1077 PJ |
193 | doc: /* Return a symbol representing the type of OBJECT. |
194 | The symbol returned names the object's basic type; | |
195 | for example, (type-of 1) returns `integer'. */) | |
196 | (object) | |
39bcc759 RS |
197 | Lisp_Object object; |
198 | { | |
199 | switch (XGCTYPE (object)) | |
200 | { | |
201 | case Lisp_Int: | |
202 | return Qinteger; | |
203 | ||
204 | case Lisp_Symbol: | |
205 | return Qsymbol; | |
206 | ||
207 | case Lisp_String: | |
208 | return Qstring; | |
209 | ||
210 | case Lisp_Cons: | |
211 | return Qcons; | |
212 | ||
213 | case Lisp_Misc: | |
324a6eef | 214 | switch (XMISCTYPE (object)) |
39bcc759 RS |
215 | { |
216 | case Lisp_Misc_Marker: | |
217 | return Qmarker; | |
218 | case Lisp_Misc_Overlay: | |
219 | return Qoverlay; | |
220 | case Lisp_Misc_Float: | |
221 | return Qfloat; | |
222 | } | |
223 | abort (); | |
224 | ||
225 | case Lisp_Vectorlike: | |
226 | if (GC_WINDOW_CONFIGURATIONP (object)) | |
227 | return Qwindow_configuration; | |
228 | if (GC_PROCESSP (object)) | |
229 | return Qprocess; | |
230 | if (GC_WINDOWP (object)) | |
231 | return Qwindow; | |
232 | if (GC_SUBRP (object)) | |
233 | return Qsubr; | |
234 | if (GC_COMPILEDP (object)) | |
235 | return Qcompiled_function; | |
236 | if (GC_BUFFERP (object)) | |
237 | return Qbuffer; | |
fc67d5be KH |
238 | if (GC_CHAR_TABLE_P (object)) |
239 | return Qchar_table; | |
240 | if (GC_BOOL_VECTOR_P (object)) | |
241 | return Qbool_vector; | |
39bcc759 RS |
242 | if (GC_FRAMEP (object)) |
243 | return Qframe; | |
81dc5de5 GM |
244 | if (GC_HASH_TABLE_P (object)) |
245 | return Qhash_table; | |
39bcc759 RS |
246 | return Qvector; |
247 | ||
39bcc759 RS |
248 | case Lisp_Float: |
249 | return Qfloat; | |
39bcc759 RS |
250 | |
251 | default: | |
252 | abort (); | |
253 | } | |
254 | } | |
255 | ||
8c1a1077 PJ |
256 | DEFUN ("consp", Fconsp, Sconsp, 1, 1, 0, |
257 | doc: /* Return t if OBJECT is a cons cell. */) | |
258 | (object) | |
39bcc759 | 259 | Lisp_Object object; |
7921925c | 260 | { |
39bcc759 | 261 | if (CONSP (object)) |
7921925c JB |
262 | return Qt; |
263 | return Qnil; | |
264 | } | |
265 | ||
25638b07 | 266 | DEFUN ("atom", Fatom, Satom, 1, 1, 0, |
8c1a1077 PJ |
267 | doc: /* Return t if OBJECT is not a cons cell. This includes nil. */) |
268 | (object) | |
39bcc759 | 269 | Lisp_Object object; |
7921925c | 270 | { |
39bcc759 | 271 | if (CONSP (object)) |
7921925c JB |
272 | return Qnil; |
273 | return Qt; | |
274 | } | |
275 | ||
25638b07 | 276 | DEFUN ("listp", Flistp, Slistp, 1, 1, 0, |
8c1a1077 PJ |
277 | doc: /* Return t if OBJECT is a list. This includes nil. */) |
278 | (object) | |
39bcc759 | 279 | Lisp_Object object; |
7921925c | 280 | { |
39bcc759 | 281 | if (CONSP (object) || NILP (object)) |
7921925c JB |
282 | return Qt; |
283 | return Qnil; | |
284 | } | |
285 | ||
25638b07 | 286 | DEFUN ("nlistp", Fnlistp, Snlistp, 1, 1, 0, |
8c1a1077 PJ |
287 | doc: /* Return t if OBJECT is not a list. Lists include nil. */) |
288 | (object) | |
39bcc759 | 289 | Lisp_Object object; |
7921925c | 290 | { |
39bcc759 | 291 | if (CONSP (object) || NILP (object)) |
7921925c JB |
292 | return Qnil; |
293 | return Qt; | |
294 | } | |
295 | \f | |
25638b07 | 296 | DEFUN ("symbolp", Fsymbolp, Ssymbolp, 1, 1, 0, |
8c1a1077 PJ |
297 | doc: /* Return t if OBJECT is a symbol. */) |
298 | (object) | |
39bcc759 | 299 | Lisp_Object object; |
7921925c | 300 | { |
39bcc759 | 301 | if (SYMBOLP (object)) |
7921925c JB |
302 | return Qt; |
303 | return Qnil; | |
304 | } | |
305 | ||
cda9b832 DL |
306 | /* Define this in C to avoid unnecessarily consing up the symbol |
307 | name. */ | |
308 | DEFUN ("keywordp", Fkeywordp, Skeywordp, 1, 1, 0, | |
8c1a1077 PJ |
309 | doc: /* Return t if OBJECT is a keyword. |
310 | This means that it is a symbol with a print name beginning with `:' | |
311 | interned in the initial obarray. */) | |
312 | (object) | |
cda9b832 DL |
313 | Lisp_Object object; |
314 | { | |
315 | if (SYMBOLP (object) | |
d5db4077 | 316 | && SREF (SYMBOL_NAME (object), 0) == ':' |
f35d5bad | 317 | && SYMBOL_INTERNED_IN_INITIAL_OBARRAY_P (object)) |
cda9b832 DL |
318 | return Qt; |
319 | return Qnil; | |
320 | } | |
321 | ||
25638b07 | 322 | DEFUN ("vectorp", Fvectorp, Svectorp, 1, 1, 0, |
8c1a1077 PJ |
323 | doc: /* Return t if OBJECT is a vector. */) |
324 | (object) | |
39bcc759 | 325 | Lisp_Object object; |
7921925c | 326 | { |
39bcc759 | 327 | if (VECTORP (object)) |
7921925c JB |
328 | return Qt; |
329 | return Qnil; | |
330 | } | |
331 | ||
25638b07 | 332 | DEFUN ("stringp", Fstringp, Sstringp, 1, 1, 0, |
8c1a1077 PJ |
333 | doc: /* Return t if OBJECT is a string. */) |
334 | (object) | |
39bcc759 | 335 | Lisp_Object object; |
7921925c | 336 | { |
39bcc759 | 337 | if (STRINGP (object)) |
7921925c JB |
338 | return Qt; |
339 | return Qnil; | |
340 | } | |
341 | ||
25638b07 | 342 | DEFUN ("multibyte-string-p", Fmultibyte_string_p, Smultibyte_string_p, |
8c1a1077 PJ |
343 | 1, 1, 0, |
344 | doc: /* Return t if OBJECT is a multibyte string. */) | |
345 | (object) | |
25638b07 RS |
346 | Lisp_Object object; |
347 | { | |
348 | if (STRINGP (object) && STRING_MULTIBYTE (object)) | |
349 | return Qt; | |
350 | return Qnil; | |
351 | } | |
352 | ||
353 | DEFUN ("char-table-p", Fchar_table_p, Schar_table_p, 1, 1, 0, | |
8c1a1077 PJ |
354 | doc: /* Return t if OBJECT is a char-table. */) |
355 | (object) | |
4d276982 RS |
356 | Lisp_Object object; |
357 | { | |
358 | if (CHAR_TABLE_P (object)) | |
359 | return Qt; | |
360 | return Qnil; | |
361 | } | |
362 | ||
7f0edce7 RS |
363 | DEFUN ("vector-or-char-table-p", Fvector_or_char_table_p, |
364 | Svector_or_char_table_p, 1, 1, 0, | |
8c1a1077 PJ |
365 | doc: /* Return t if OBJECT is a char-table or vector. */) |
366 | (object) | |
7f0edce7 RS |
367 | Lisp_Object object; |
368 | { | |
369 | if (VECTORP (object) || CHAR_TABLE_P (object)) | |
370 | return Qt; | |
371 | return Qnil; | |
372 | } | |
373 | ||
8c1a1077 PJ |
374 | DEFUN ("bool-vector-p", Fbool_vector_p, Sbool_vector_p, 1, 1, 0, |
375 | doc: /* Return t if OBJECT is a bool-vector. */) | |
376 | (object) | |
4d276982 RS |
377 | Lisp_Object object; |
378 | { | |
379 | if (BOOL_VECTOR_P (object)) | |
380 | return Qt; | |
381 | return Qnil; | |
382 | } | |
383 | ||
8c1a1077 PJ |
384 | DEFUN ("arrayp", Farrayp, Sarrayp, 1, 1, 0, |
385 | doc: /* Return t if OBJECT is an array (string or vector). */) | |
386 | (object) | |
39bcc759 | 387 | Lisp_Object object; |
7921925c | 388 | { |
a9729926 RS |
389 | if (VECTORP (object) || STRINGP (object) |
390 | || CHAR_TABLE_P (object) || BOOL_VECTOR_P (object)) | |
7921925c JB |
391 | return Qt; |
392 | return Qnil; | |
393 | } | |
394 | ||
395 | DEFUN ("sequencep", Fsequencep, Ssequencep, 1, 1, 0, | |
8c1a1077 PJ |
396 | doc: /* Return t if OBJECT is a sequence (list or array). */) |
397 | (object) | |
39bcc759 | 398 | register Lisp_Object object; |
7921925c | 399 | { |
4d276982 RS |
400 | if (CONSP (object) || NILP (object) || VECTORP (object) || STRINGP (object) |
401 | || CHAR_TABLE_P (object) || BOOL_VECTOR_P (object)) | |
7921925c JB |
402 | return Qt; |
403 | return Qnil; | |
404 | } | |
405 | ||
8c1a1077 PJ |
406 | DEFUN ("bufferp", Fbufferp, Sbufferp, 1, 1, 0, |
407 | doc: /* Return t if OBJECT is an editor buffer. */) | |
408 | (object) | |
39bcc759 | 409 | Lisp_Object object; |
7921925c | 410 | { |
39bcc759 | 411 | if (BUFFERP (object)) |
7921925c JB |
412 | return Qt; |
413 | return Qnil; | |
414 | } | |
415 | ||
8c1a1077 PJ |
416 | DEFUN ("markerp", Fmarkerp, Smarkerp, 1, 1, 0, |
417 | doc: /* Return t if OBJECT is a marker (editor pointer). */) | |
418 | (object) | |
39bcc759 | 419 | Lisp_Object object; |
7921925c | 420 | { |
39bcc759 | 421 | if (MARKERP (object)) |
7921925c JB |
422 | return Qt; |
423 | return Qnil; | |
424 | } | |
425 | ||
8c1a1077 PJ |
426 | DEFUN ("subrp", Fsubrp, Ssubrp, 1, 1, 0, |
427 | doc: /* Return t if OBJECT is a built-in function. */) | |
428 | (object) | |
39bcc759 | 429 | Lisp_Object object; |
7921925c | 430 | { |
39bcc759 | 431 | if (SUBRP (object)) |
7921925c JB |
432 | return Qt; |
433 | return Qnil; | |
434 | } | |
435 | ||
dbc4e1c1 | 436 | DEFUN ("byte-code-function-p", Fbyte_code_function_p, Sbyte_code_function_p, |
8c1a1077 PJ |
437 | 1, 1, 0, |
438 | doc: /* Return t if OBJECT is a byte-compiled function object. */) | |
439 | (object) | |
39bcc759 | 440 | Lisp_Object object; |
7921925c | 441 | { |
39bcc759 | 442 | if (COMPILEDP (object)) |
7921925c JB |
443 | return Qt; |
444 | return Qnil; | |
445 | } | |
446 | ||
0321d75c | 447 | DEFUN ("char-or-string-p", Fchar_or_string_p, Schar_or_string_p, 1, 1, 0, |
8c1a1077 PJ |
448 | doc: /* Return t if OBJECT is a character (an integer) or a string. */) |
449 | (object) | |
39bcc759 | 450 | register Lisp_Object object; |
7921925c | 451 | { |
cfd70f33 | 452 | if (CHARACTERP (object) || STRINGP (object)) |
7921925c JB |
453 | return Qt; |
454 | return Qnil; | |
455 | } | |
456 | \f | |
8c1a1077 PJ |
457 | DEFUN ("integerp", Fintegerp, Sintegerp, 1, 1, 0, |
458 | doc: /* Return t if OBJECT is an integer. */) | |
459 | (object) | |
39bcc759 | 460 | Lisp_Object object; |
7921925c | 461 | { |
39bcc759 | 462 | if (INTEGERP (object)) |
7921925c JB |
463 | return Qt; |
464 | return Qnil; | |
465 | } | |
466 | ||
464f8898 | 467 | DEFUN ("integer-or-marker-p", Finteger_or_marker_p, Sinteger_or_marker_p, 1, 1, 0, |
8c1a1077 PJ |
468 | doc: /* Return t if OBJECT is an integer or a marker (editor pointer). */) |
469 | (object) | |
39bcc759 | 470 | register Lisp_Object object; |
7921925c | 471 | { |
39bcc759 | 472 | if (MARKERP (object) || INTEGERP (object)) |
7921925c JB |
473 | return Qt; |
474 | return Qnil; | |
475 | } | |
476 | ||
0321d75c | 477 | DEFUN ("natnump", Fnatnump, Snatnump, 1, 1, 0, |
8c1a1077 PJ |
478 | doc: /* Return t if OBJECT is a nonnegative integer. */) |
479 | (object) | |
39bcc759 | 480 | Lisp_Object object; |
7921925c | 481 | { |
39bcc759 | 482 | if (NATNUMP (object)) |
7921925c JB |
483 | return Qt; |
484 | return Qnil; | |
485 | } | |
486 | ||
487 | DEFUN ("numberp", Fnumberp, Snumberp, 1, 1, 0, | |
8c1a1077 PJ |
488 | doc: /* Return t if OBJECT is a number (floating point or integer). */) |
489 | (object) | |
39bcc759 | 490 | Lisp_Object object; |
7921925c | 491 | { |
39bcc759 | 492 | if (NUMBERP (object)) |
7921925c | 493 | return Qt; |
dbc4e1c1 JB |
494 | else |
495 | return Qnil; | |
7921925c JB |
496 | } |
497 | ||
498 | DEFUN ("number-or-marker-p", Fnumber_or_marker_p, | |
499 | Snumber_or_marker_p, 1, 1, 0, | |
8c1a1077 PJ |
500 | doc: /* Return t if OBJECT is a number or a marker. */) |
501 | (object) | |
39bcc759 | 502 | Lisp_Object object; |
7921925c | 503 | { |
39bcc759 | 504 | if (NUMBERP (object) || MARKERP (object)) |
7921925c JB |
505 | return Qt; |
506 | return Qnil; | |
507 | } | |
464f8898 | 508 | |
464f8898 | 509 | DEFUN ("floatp", Ffloatp, Sfloatp, 1, 1, 0, |
8c1a1077 PJ |
510 | doc: /* Return t if OBJECT is a floating point number. */) |
511 | (object) | |
39bcc759 | 512 | Lisp_Object object; |
464f8898 | 513 | { |
39bcc759 | 514 | if (FLOATP (object)) |
464f8898 RS |
515 | return Qt; |
516 | return Qnil; | |
517 | } | |
cc94f3b2 | 518 | |
7921925c JB |
519 | \f |
520 | /* Extract and set components of lists */ | |
521 | ||
522 | DEFUN ("car", Fcar, Scar, 1, 1, 0, | |
8c1a1077 PJ |
523 | doc: /* Return the car of LIST. If arg is nil, return nil. |
524 | Error if arg is not nil and not a cons cell. See also `car-safe'. */) | |
525 | (list) | |
7921925c JB |
526 | register Lisp_Object list; |
527 | { | |
528 | while (1) | |
529 | { | |
e9ebc175 | 530 | if (CONSP (list)) |
7539e11f | 531 | return XCAR (list); |
7921925c JB |
532 | else if (EQ (list, Qnil)) |
533 | return Qnil; | |
534 | else | |
535 | list = wrong_type_argument (Qlistp, list); | |
536 | } | |
537 | } | |
538 | ||
539 | DEFUN ("car-safe", Fcar_safe, Scar_safe, 1, 1, 0, | |
8c1a1077 PJ |
540 | doc: /* Return the car of OBJECT if it is a cons cell, or else nil. */) |
541 | (object) | |
7921925c JB |
542 | Lisp_Object object; |
543 | { | |
e9ebc175 | 544 | if (CONSP (object)) |
7539e11f | 545 | return XCAR (object); |
7921925c JB |
546 | else |
547 | return Qnil; | |
548 | } | |
549 | ||
550 | DEFUN ("cdr", Fcdr, Scdr, 1, 1, 0, | |
8c1a1077 PJ |
551 | doc: /* Return the cdr of LIST. If arg is nil, return nil. |
552 | Error if arg is not nil and not a cons cell. See also `cdr-safe'. */) | |
553 | (list) | |
7921925c JB |
554 | register Lisp_Object list; |
555 | { | |
556 | while (1) | |
557 | { | |
e9ebc175 | 558 | if (CONSP (list)) |
7539e11f | 559 | return XCDR (list); |
7921925c JB |
560 | else if (EQ (list, Qnil)) |
561 | return Qnil; | |
562 | else | |
563 | list = wrong_type_argument (Qlistp, list); | |
564 | } | |
565 | } | |
566 | ||
567 | DEFUN ("cdr-safe", Fcdr_safe, Scdr_safe, 1, 1, 0, | |
8c1a1077 PJ |
568 | doc: /* Return the cdr of OBJECT if it is a cons cell, or else nil. */) |
569 | (object) | |
7921925c JB |
570 | Lisp_Object object; |
571 | { | |
e9ebc175 | 572 | if (CONSP (object)) |
7539e11f | 573 | return XCDR (object); |
7921925c JB |
574 | else |
575 | return Qnil; | |
576 | } | |
577 | ||
578 | DEFUN ("setcar", Fsetcar, Ssetcar, 2, 2, 0, | |
8c1a1077 PJ |
579 | doc: /* Set the car of CELL to be NEWCAR. Returns NEWCAR. */) |
580 | (cell, newcar) | |
7921925c JB |
581 | register Lisp_Object cell, newcar; |
582 | { | |
e9ebc175 | 583 | if (!CONSP (cell)) |
7921925c JB |
584 | cell = wrong_type_argument (Qconsp, cell); |
585 | ||
586 | CHECK_IMPURE (cell); | |
f3fbd155 | 587 | XSETCAR (cell, newcar); |
7921925c JB |
588 | return newcar; |
589 | } | |
590 | ||
591 | DEFUN ("setcdr", Fsetcdr, Ssetcdr, 2, 2, 0, | |
8c1a1077 PJ |
592 | doc: /* Set the cdr of CELL to be NEWCDR. Returns NEWCDR. */) |
593 | (cell, newcdr) | |
7921925c JB |
594 | register Lisp_Object cell, newcdr; |
595 | { | |
e9ebc175 | 596 | if (!CONSP (cell)) |
7921925c JB |
597 | cell = wrong_type_argument (Qconsp, cell); |
598 | ||
599 | CHECK_IMPURE (cell); | |
f3fbd155 | 600 | XSETCDR (cell, newcdr); |
7921925c JB |
601 | return newcdr; |
602 | } | |
603 | \f | |
604 | /* Extract and set components of symbols */ | |
605 | ||
8c1a1077 PJ |
606 | DEFUN ("boundp", Fboundp, Sboundp, 1, 1, 0, |
607 | doc: /* Return t if SYMBOL's value is not void. */) | |
608 | (symbol) | |
d9c2a0f2 | 609 | register Lisp_Object symbol; |
7921925c JB |
610 | { |
611 | Lisp_Object valcontents; | |
b7826503 | 612 | CHECK_SYMBOL (symbol); |
7921925c | 613 | |
f35d5bad | 614 | valcontents = SYMBOL_VALUE (symbol); |
7921925c | 615 | |
aabf6bec KH |
616 | if (BUFFER_LOCAL_VALUEP (valcontents) |
617 | || SOME_BUFFER_LOCAL_VALUEP (valcontents)) | |
d9c2a0f2 | 618 | valcontents = swap_in_symval_forwarding (symbol, valcontents); |
7921925c | 619 | |
1bfcade3 | 620 | return (EQ (valcontents, Qunbound) ? Qnil : Qt); |
7921925c JB |
621 | } |
622 | ||
8c1a1077 PJ |
623 | DEFUN ("fboundp", Ffboundp, Sfboundp, 1, 1, 0, |
624 | doc: /* Return t if SYMBOL's function definition is not void. */) | |
625 | (symbol) | |
d9c2a0f2 | 626 | register Lisp_Object symbol; |
7921925c | 627 | { |
b7826503 | 628 | CHECK_SYMBOL (symbol); |
d9c2a0f2 | 629 | return (EQ (XSYMBOL (symbol)->function, Qunbound) ? Qnil : Qt); |
7921925c JB |
630 | } |
631 | ||
8c1a1077 | 632 | DEFUN ("makunbound", Fmakunbound, Smakunbound, 1, 1, 0, |
bfb96cb7 FP |
633 | doc: /* Make SYMBOL's value be void. |
634 | Return SYMBOL. */) | |
8c1a1077 | 635 | (symbol) |
d9c2a0f2 | 636 | register Lisp_Object symbol; |
7921925c | 637 | { |
b7826503 | 638 | CHECK_SYMBOL (symbol); |
f35d5bad | 639 | if (XSYMBOL (symbol)->constant) |
d9c2a0f2 EN |
640 | return Fsignal (Qsetting_constant, Fcons (symbol, Qnil)); |
641 | Fset (symbol, Qunbound); | |
642 | return symbol; | |
7921925c JB |
643 | } |
644 | ||
8c1a1077 | 645 | DEFUN ("fmakunbound", Ffmakunbound, Sfmakunbound, 1, 1, 0, |
bfb96cb7 FP |
646 | doc: /* Make SYMBOL's function definition be void. |
647 | Return SYMBOL. */) | |
8c1a1077 | 648 | (symbol) |
d9c2a0f2 | 649 | register Lisp_Object symbol; |
7921925c | 650 | { |
b7826503 | 651 | CHECK_SYMBOL (symbol); |
d9c2a0f2 EN |
652 | if (NILP (symbol) || EQ (symbol, Qt)) |
653 | return Fsignal (Qsetting_constant, Fcons (symbol, Qnil)); | |
654 | XSYMBOL (symbol)->function = Qunbound; | |
655 | return symbol; | |
7921925c JB |
656 | } |
657 | ||
658 | DEFUN ("symbol-function", Fsymbol_function, Ssymbol_function, 1, 1, 0, | |
8c1a1077 PJ |
659 | doc: /* Return SYMBOL's function definition. Error if that is void. */) |
660 | (symbol) | |
ffd56f97 | 661 | register Lisp_Object symbol; |
7921925c | 662 | { |
b7826503 | 663 | CHECK_SYMBOL (symbol); |
ffd56f97 JB |
664 | if (EQ (XSYMBOL (symbol)->function, Qunbound)) |
665 | return Fsignal (Qvoid_function, Fcons (symbol, Qnil)); | |
666 | return XSYMBOL (symbol)->function; | |
7921925c JB |
667 | } |
668 | ||
8c1a1077 PJ |
669 | DEFUN ("symbol-plist", Fsymbol_plist, Ssymbol_plist, 1, 1, 0, |
670 | doc: /* Return SYMBOL's property list. */) | |
671 | (symbol) | |
d9c2a0f2 | 672 | register Lisp_Object symbol; |
7921925c | 673 | { |
b7826503 | 674 | CHECK_SYMBOL (symbol); |
d9c2a0f2 | 675 | return XSYMBOL (symbol)->plist; |
7921925c JB |
676 | } |
677 | ||
8c1a1077 PJ |
678 | DEFUN ("symbol-name", Fsymbol_name, Ssymbol_name, 1, 1, 0, |
679 | doc: /* Return SYMBOL's name, a string. */) | |
680 | (symbol) | |
d9c2a0f2 | 681 | register Lisp_Object symbol; |
7921925c JB |
682 | { |
683 | register Lisp_Object name; | |
684 | ||
b7826503 | 685 | CHECK_SYMBOL (symbol); |
84023177 | 686 | name = SYMBOL_NAME (symbol); |
7921925c JB |
687 | return name; |
688 | } | |
689 | ||
690 | DEFUN ("fset", Ffset, Sfset, 2, 2, 0, | |
8c1a1077 PJ |
691 | doc: /* Set SYMBOL's function definition to DEFINITION, and return DEFINITION. */) |
692 | (symbol, definition) | |
8c0b5540 | 693 | register Lisp_Object symbol, definition; |
d9c2a0f2 | 694 | { |
b7826503 | 695 | CHECK_SYMBOL (symbol); |
d9c2a0f2 EN |
696 | if (NILP (symbol) || EQ (symbol, Qt)) |
697 | return Fsignal (Qsetting_constant, Fcons (symbol, Qnil)); | |
698 | if (!NILP (Vautoload_queue) && !EQ (XSYMBOL (symbol)->function, Qunbound)) | |
699 | Vautoload_queue = Fcons (Fcons (symbol, XSYMBOL (symbol)->function), | |
7921925c | 700 | Vautoload_queue); |
8c0b5540 | 701 | XSYMBOL (symbol)->function = definition; |
f845f2c9 | 702 | /* Handle automatic advice activation */ |
d9c2a0f2 | 703 | if (CONSP (XSYMBOL (symbol)->plist) && !NILP (Fget (symbol, Qad_advice_info))) |
f845f2c9 | 704 | { |
c1307a23 | 705 | call2 (Qad_activate_internal, symbol, Qnil); |
8c0b5540 | 706 | definition = XSYMBOL (symbol)->function; |
f845f2c9 | 707 | } |
8c0b5540 | 708 | return definition; |
7921925c JB |
709 | } |
710 | ||
d2fde41d SM |
711 | extern Lisp_Object Qfunction_documentation; |
712 | ||
713 | DEFUN ("defalias", Fdefalias, Sdefalias, 2, 3, 0, | |
8c1a1077 | 714 | doc: /* Set SYMBOL's function definition to DEFINITION, and return DEFINITION. |
96143227 RS |
715 | Associates the function with the current load file, if any. |
716 | The optional third argument DOCSTRING specifies the documentation string | |
717 | for SYMBOL; if it is omitted or nil, SYMBOL uses the documentation string | |
718 | determined by DEFINITION. */) | |
d2fde41d SM |
719 | (symbol, definition, docstring) |
720 | register Lisp_Object symbol, definition, docstring; | |
fc08c367 | 721 | { |
894f6538 RS |
722 | if (CONSP (XSYMBOL (symbol)->function) |
723 | && EQ (XCAR (XSYMBOL (symbol)->function), Qautoload)) | |
724 | LOADHIST_ATTACH (Fcons (Qt, symbol)); | |
32f532b7 | 725 | definition = Ffset (symbol, definition); |
d9c2a0f2 | 726 | LOADHIST_ATTACH (symbol); |
d2fde41d SM |
727 | if (!NILP (docstring)) |
728 | Fput (symbol, Qfunction_documentation, docstring); | |
73e0d965 | 729 | return definition; |
fc08c367 RS |
730 | } |
731 | ||
7921925c | 732 | DEFUN ("setplist", Fsetplist, Ssetplist, 2, 2, 0, |
6b61353c | 733 | doc: /* Set SYMBOL's property list to NEWPLIST, and return NEWPLIST. */) |
8c1a1077 | 734 | (symbol, newplist) |
d9c2a0f2 | 735 | register Lisp_Object symbol, newplist; |
7921925c | 736 | { |
b7826503 | 737 | CHECK_SYMBOL (symbol); |
d9c2a0f2 | 738 | XSYMBOL (symbol)->plist = newplist; |
7921925c JB |
739 | return newplist; |
740 | } | |
ffd56f97 | 741 | |
6f0e897f | 742 | DEFUN ("subr-arity", Fsubr_arity, Ssubr_arity, 1, 1, 0, |
8c1a1077 PJ |
743 | doc: /* Return minimum and maximum number of args allowed for SUBR. |
744 | SUBR must be a built-in function. | |
745 | The returned value is a pair (MIN . MAX). MIN is the minimum number | |
746 | of args. MAX is the maximum number or the symbol `many', for a | |
747 | function with `&rest' args, or `unevalled' for a special form. */) | |
748 | (subr) | |
6f0e897f DL |
749 | Lisp_Object subr; |
750 | { | |
751 | short minargs, maxargs; | |
752 | if (!SUBRP (subr)) | |
753 | wrong_type_argument (Qsubrp, subr); | |
754 | minargs = XSUBR (subr)->min_args; | |
755 | maxargs = XSUBR (subr)->max_args; | |
756 | if (maxargs == MANY) | |
757 | return Fcons (make_number (minargs), Qmany); | |
758 | else if (maxargs == UNEVALLED) | |
759 | return Fcons (make_number (minargs), Qunevalled); | |
760 | else | |
761 | return Fcons (make_number (minargs), make_number (maxargs)); | |
762 | } | |
763 | ||
6b61353c KH |
764 | DEFUN ("interactive-form", Finteractive_form, Sinteractive_form, 1, 1, 0, |
765 | doc: /* Return the interactive form of CMD or nil if none. | |
766 | CMD must be a command. Value, if non-nil, is a list | |
8c1a1077 | 767 | \(interactive SPEC). */) |
6b61353c KH |
768 | (cmd) |
769 | Lisp_Object cmd; | |
cc515226 | 770 | { |
6b61353c KH |
771 | Lisp_Object fun = indirect_function (cmd); |
772 | ||
773 | if (SUBRP (fun)) | |
774 | { | |
775 | if (XSUBR (fun)->prompt) | |
776 | return list2 (Qinteractive, build_string (XSUBR (fun)->prompt)); | |
777 | } | |
778 | else if (COMPILEDP (fun)) | |
779 | { | |
780 | if ((ASIZE (fun) & PSEUDOVECTOR_SIZE_MASK) > COMPILED_INTERACTIVE) | |
781 | return list2 (Qinteractive, AREF (fun, COMPILED_INTERACTIVE)); | |
782 | } | |
783 | else if (CONSP (fun)) | |
784 | { | |
785 | Lisp_Object funcar = XCAR (fun); | |
786 | if (EQ (funcar, Qlambda)) | |
787 | return Fassq (Qinteractive, Fcdr (XCDR (fun))); | |
788 | else if (EQ (funcar, Qautoload)) | |
789 | { | |
790 | struct gcpro gcpro1; | |
791 | GCPRO1 (cmd); | |
792 | do_autoload (fun, cmd); | |
793 | UNGCPRO; | |
794 | return Finteractive_form (cmd); | |
795 | } | |
796 | } | |
cc515226 GM |
797 | return Qnil; |
798 | } | |
799 | ||
7921925c | 800 | \f |
f35d5bad GM |
801 | /*********************************************************************** |
802 | Getting and Setting Values of Symbols | |
803 | ***********************************************************************/ | |
804 | ||
805 | /* Return the symbol holding SYMBOL's value. Signal | |
806 | `cyclic-variable-indirection' if SYMBOL's chain of variable | |
807 | indirections contains a loop. */ | |
808 | ||
809 | Lisp_Object | |
810 | indirect_variable (symbol) | |
811 | Lisp_Object symbol; | |
812 | { | |
813 | Lisp_Object tortoise, hare; | |
814 | ||
815 | hare = tortoise = symbol; | |
816 | ||
817 | while (XSYMBOL (hare)->indirect_variable) | |
818 | { | |
819 | hare = XSYMBOL (hare)->value; | |
820 | if (!XSYMBOL (hare)->indirect_variable) | |
821 | break; | |
bfb96cb7 | 822 | |
f35d5bad GM |
823 | hare = XSYMBOL (hare)->value; |
824 | tortoise = XSYMBOL (tortoise)->value; | |
825 | ||
826 | if (EQ (hare, tortoise)) | |
827 | Fsignal (Qcyclic_variable_indirection, Fcons (symbol, Qnil)); | |
828 | } | |
829 | ||
830 | return hare; | |
831 | } | |
832 | ||
833 | ||
834 | DEFUN ("indirect-variable", Findirect_variable, Sindirect_variable, 1, 1, 0, | |
8c1a1077 PJ |
835 | doc: /* Return the variable at the end of OBJECT's variable chain. |
836 | If OBJECT is a symbol, follow all variable indirections and return the final | |
837 | variable. If OBJECT is not a symbol, just return it. | |
838 | Signal a cyclic-variable-indirection error if there is a loop in the | |
839 | variable chain of symbols. */) | |
840 | (object) | |
f35d5bad GM |
841 | Lisp_Object object; |
842 | { | |
843 | if (SYMBOLP (object)) | |
844 | object = indirect_variable (object); | |
845 | return object; | |
846 | } | |
847 | ||
7921925c JB |
848 | |
849 | /* Given the raw contents of a symbol value cell, | |
850 | return the Lisp value of the symbol. | |
851 | This does not handle buffer-local variables; use | |
852 | swap_in_symval_forwarding for that. */ | |
853 | ||
854 | Lisp_Object | |
855 | do_symval_forwarding (valcontents) | |
856 | register Lisp_Object valcontents; | |
857 | { | |
858 | register Lisp_Object val; | |
46b2ac21 KH |
859 | int offset; |
860 | if (MISCP (valcontents)) | |
324a6eef | 861 | switch (XMISCTYPE (valcontents)) |
46b2ac21 KH |
862 | { |
863 | case Lisp_Misc_Intfwd: | |
864 | XSETINT (val, *XINTFWD (valcontents)->intvar); | |
865 | return val; | |
7921925c | 866 | |
46b2ac21 KH |
867 | case Lisp_Misc_Boolfwd: |
868 | return (*XBOOLFWD (valcontents)->boolvar ? Qt : Qnil); | |
7921925c | 869 | |
46b2ac21 KH |
870 | case Lisp_Misc_Objfwd: |
871 | return *XOBJFWD (valcontents)->objvar; | |
7921925c | 872 | |
46b2ac21 KH |
873 | case Lisp_Misc_Buffer_Objfwd: |
874 | offset = XBUFFER_OBJFWD (valcontents)->offset; | |
f6cd0527 | 875 | return PER_BUFFER_VALUE (current_buffer, offset); |
7403b5c8 | 876 | |
e5f8af9e KH |
877 | case Lisp_Misc_Kboard_Objfwd: |
878 | offset = XKBOARD_OBJFWD (valcontents)->offset; | |
879 | return *(Lisp_Object *)(offset + (char *)current_kboard); | |
46b2ac21 | 880 | } |
7921925c JB |
881 | return valcontents; |
882 | } | |
883 | ||
d9c2a0f2 EN |
884 | /* Store NEWVAL into SYMBOL, where VALCONTENTS is found in the value cell |
885 | of SYMBOL. If SYMBOL is buffer-local, VALCONTENTS should be the | |
7921925c | 886 | buffer-independent contents of the value cell: forwarded just one |
7a283f36 GM |
887 | step past the buffer-localness. |
888 | ||
889 | BUF non-zero means set the value in buffer BUF instead of the | |
890 | current buffer. This only plays a role for per-buffer variables. */ | |
7921925c JB |
891 | |
892 | void | |
7a283f36 | 893 | store_symval_forwarding (symbol, valcontents, newval, buf) |
d9c2a0f2 | 894 | Lisp_Object symbol; |
7921925c | 895 | register Lisp_Object valcontents, newval; |
7a283f36 | 896 | struct buffer *buf; |
7921925c | 897 | { |
6b61353c KH |
898 | int offset; |
899 | ||
0220c518 | 900 | switch (SWITCH_ENUM_CAST (XTYPE (valcontents))) |
7921925c | 901 | { |
46b2ac21 | 902 | case Lisp_Misc: |
324a6eef | 903 | switch (XMISCTYPE (valcontents)) |
46b2ac21 KH |
904 | { |
905 | case Lisp_Misc_Intfwd: | |
b7826503 | 906 | CHECK_NUMBER (newval); |
46b2ac21 | 907 | *XINTFWD (valcontents)->intvar = XINT (newval); |
e6c82a8d RS |
908 | if (*XINTFWD (valcontents)->intvar != XINT (newval)) |
909 | error ("Value out of range for variable `%s'", | |
d5db4077 | 910 | SDATA (SYMBOL_NAME (symbol))); |
46b2ac21 KH |
911 | break; |
912 | ||
913 | case Lisp_Misc_Boolfwd: | |
914 | *XBOOLFWD (valcontents)->boolvar = NILP (newval) ? 0 : 1; | |
915 | break; | |
916 | ||
917 | case Lisp_Misc_Objfwd: | |
918 | *XOBJFWD (valcontents)->objvar = newval; | |
6b61353c KH |
919 | |
920 | /* If this variable is a default for something stored | |
921 | in the buffer itself, such as default-fill-column, | |
922 | find the buffers that don't have local values for it | |
923 | and update them. */ | |
924 | if (XOBJFWD (valcontents)->objvar > (Lisp_Object *) &buffer_defaults | |
925 | && XOBJFWD (valcontents)->objvar < (Lisp_Object *) (&buffer_defaults + 1)) | |
926 | { | |
927 | int offset = ((char *) XOBJFWD (valcontents)->objvar | |
928 | - (char *) &buffer_defaults); | |
929 | int idx = PER_BUFFER_IDX (offset); | |
930 | ||
931 | Lisp_Object tail, buf; | |
932 | ||
933 | if (idx <= 0) | |
934 | break; | |
935 | ||
936 | for (tail = Vbuffer_alist; CONSP (tail); tail = XCDR (tail)) | |
937 | { | |
938 | Lisp_Object buf; | |
939 | struct buffer *b; | |
940 | ||
941 | buf = Fcdr (XCAR (tail)); | |
942 | if (!BUFFERP (buf)) continue; | |
943 | b = XBUFFER (buf); | |
944 | ||
945 | if (! PER_BUFFER_VALUE_P (b, idx)) | |
946 | PER_BUFFER_VALUE (b, offset) = newval; | |
947 | } | |
948 | } | |
46b2ac21 KH |
949 | break; |
950 | ||
951 | case Lisp_Misc_Buffer_Objfwd: | |
952 | { | |
953 | int offset = XBUFFER_OBJFWD (valcontents)->offset; | |
954 | Lisp_Object type; | |
955 | ||
d9b36d19 | 956 | type = PER_BUFFER_TYPE (offset); |
46b2ac21 KH |
957 | if (! NILP (type) && ! NILP (newval) |
958 | && XTYPE (newval) != XINT (type)) | |
959 | buffer_slot_type_mismatch (offset); | |
960 | ||
7a283f36 GM |
961 | if (buf == NULL) |
962 | buf = current_buffer; | |
963 | PER_BUFFER_VALUE (buf, offset) = newval; | |
46b2ac21 | 964 | } |
7403b5c8 KH |
965 | break; |
966 | ||
e5f8af9e | 967 | case Lisp_Misc_Kboard_Objfwd: |
7a283f36 GM |
968 | { |
969 | char *base = (char *) current_kboard; | |
970 | char *p = base + XKBOARD_OBJFWD (valcontents)->offset; | |
971 | *(Lisp_Object *) p = newval; | |
972 | } | |
7403b5c8 KH |
973 | break; |
974 | ||
46b2ac21 KH |
975 | default: |
976 | goto def; | |
977 | } | |
7921925c JB |
978 | break; |
979 | ||
7921925c | 980 | default: |
46b2ac21 | 981 | def: |
f35d5bad | 982 | valcontents = SYMBOL_VALUE (symbol); |
e9ebc175 KH |
983 | if (BUFFER_LOCAL_VALUEP (valcontents) |
984 | || SOME_BUFFER_LOCAL_VALUEP (valcontents)) | |
b0c2d1c6 | 985 | XBUFFER_LOCAL_VALUE (valcontents)->realvalue = newval; |
7921925c | 986 | else |
f35d5bad | 987 | SET_SYMBOL_VALUE (symbol, newval); |
7921925c JB |
988 | } |
989 | } | |
990 | ||
b0d53add GM |
991 | /* Set up SYMBOL to refer to its global binding. |
992 | This makes it safe to alter the status of other bindings. */ | |
993 | ||
994 | void | |
995 | swap_in_global_binding (symbol) | |
996 | Lisp_Object symbol; | |
997 | { | |
998 | Lisp_Object valcontents, cdr; | |
bfb96cb7 | 999 | |
f35d5bad | 1000 | valcontents = SYMBOL_VALUE (symbol); |
b0d53add GM |
1001 | if (!BUFFER_LOCAL_VALUEP (valcontents) |
1002 | && !SOME_BUFFER_LOCAL_VALUEP (valcontents)) | |
1003 | abort (); | |
1004 | cdr = XBUFFER_LOCAL_VALUE (valcontents)->cdr; | |
1005 | ||
1006 | /* Unload the previously loaded binding. */ | |
1007 | Fsetcdr (XCAR (cdr), | |
1008 | do_symval_forwarding (XBUFFER_LOCAL_VALUE (valcontents)->realvalue)); | |
bfb96cb7 | 1009 | |
b0d53add | 1010 | /* Select the global binding in the symbol. */ |
f3fbd155 | 1011 | XSETCAR (cdr, cdr); |
7a283f36 | 1012 | store_symval_forwarding (symbol, valcontents, XCDR (cdr), NULL); |
b0d53add GM |
1013 | |
1014 | /* Indicate that the global binding is set up now. */ | |
1015 | XBUFFER_LOCAL_VALUE (valcontents)->frame = Qnil; | |
1016 | XBUFFER_LOCAL_VALUE (valcontents)->buffer = Qnil; | |
1017 | XBUFFER_LOCAL_VALUE (valcontents)->found_for_frame = 0; | |
1018 | XBUFFER_LOCAL_VALUE (valcontents)->found_for_buffer = 0; | |
1019 | } | |
1020 | ||
2829d05f | 1021 | /* Set up the buffer-local symbol SYMBOL for validity in the current buffer. |
42e975f0 RS |
1022 | VALCONTENTS is the contents of its value cell, |
1023 | which points to a struct Lisp_Buffer_Local_Value. | |
1024 | ||
1025 | Return the value forwarded one step past the buffer-local stage. | |
1026 | This could be another forwarding pointer. */ | |
7921925c JB |
1027 | |
1028 | static Lisp_Object | |
d9c2a0f2 EN |
1029 | swap_in_symval_forwarding (symbol, valcontents) |
1030 | Lisp_Object symbol, valcontents; | |
7921925c | 1031 | { |
7921925c | 1032 | register Lisp_Object tem1; |
bfb96cb7 | 1033 | |
b0c2d1c6 | 1034 | tem1 = XBUFFER_LOCAL_VALUE (valcontents)->buffer; |
7921925c | 1035 | |
42e975f0 RS |
1036 | if (NILP (tem1) |
1037 | || current_buffer != XBUFFER (tem1) | |
1038 | || (XBUFFER_LOCAL_VALUE (valcontents)->check_frame | |
1039 | && ! EQ (selected_frame, XBUFFER_LOCAL_VALUE (valcontents)->frame))) | |
7921925c | 1040 | { |
f35d5bad GM |
1041 | if (XSYMBOL (symbol)->indirect_variable) |
1042 | symbol = indirect_variable (symbol); | |
bfb96cb7 | 1043 | |
42e975f0 | 1044 | /* Unload the previously loaded binding. */ |
7539e11f | 1045 | tem1 = XCAR (XBUFFER_LOCAL_VALUE (valcontents)->cdr); |
8d4afcac | 1046 | Fsetcdr (tem1, |
b0c2d1c6 | 1047 | do_symval_forwarding (XBUFFER_LOCAL_VALUE (valcontents)->realvalue)); |
42e975f0 | 1048 | /* Choose the new binding. */ |
d9c2a0f2 | 1049 | tem1 = assq_no_quit (symbol, current_buffer->local_var_alist); |
b0c2d1c6 RS |
1050 | XBUFFER_LOCAL_VALUE (valcontents)->found_for_frame = 0; |
1051 | XBUFFER_LOCAL_VALUE (valcontents)->found_for_buffer = 0; | |
a33ef3ab | 1052 | if (NILP (tem1)) |
b0c2d1c6 RS |
1053 | { |
1054 | if (XBUFFER_LOCAL_VALUE (valcontents)->check_frame) | |
1cc04aed | 1055 | tem1 = assq_no_quit (symbol, XFRAME (selected_frame)->param_alist); |
b0c2d1c6 RS |
1056 | if (! NILP (tem1)) |
1057 | XBUFFER_LOCAL_VALUE (valcontents)->found_for_frame = 1; | |
1058 | else | |
1059 | tem1 = XBUFFER_LOCAL_VALUE (valcontents)->cdr; | |
1060 | } | |
1061 | else | |
1062 | XBUFFER_LOCAL_VALUE (valcontents)->found_for_buffer = 1; | |
1063 | ||
42e975f0 | 1064 | /* Load the new binding. */ |
f3fbd155 | 1065 | XSETCAR (XBUFFER_LOCAL_VALUE (valcontents)->cdr, tem1); |
b0c2d1c6 | 1066 | XSETBUFFER (XBUFFER_LOCAL_VALUE (valcontents)->buffer, current_buffer); |
1cc04aed | 1067 | XBUFFER_LOCAL_VALUE (valcontents)->frame = selected_frame; |
b0c2d1c6 RS |
1068 | store_symval_forwarding (symbol, |
1069 | XBUFFER_LOCAL_VALUE (valcontents)->realvalue, | |
7a283f36 | 1070 | Fcdr (tem1), NULL); |
7921925c | 1071 | } |
b0c2d1c6 | 1072 | return XBUFFER_LOCAL_VALUE (valcontents)->realvalue; |
7921925c JB |
1073 | } |
1074 | \f | |
14e76af9 JB |
1075 | /* Find the value of a symbol, returning Qunbound if it's not bound. |
1076 | This is helpful for code which just wants to get a variable's value | |
8e6208c5 | 1077 | if it has one, without signaling an error. |
14e76af9 JB |
1078 | Note that it must not be possible to quit |
1079 | within this function. Great care is required for this. */ | |
7921925c | 1080 | |
14e76af9 | 1081 | Lisp_Object |
d9c2a0f2 EN |
1082 | find_symbol_value (symbol) |
1083 | Lisp_Object symbol; | |
7921925c | 1084 | { |
dd8daec5 | 1085 | register Lisp_Object valcontents; |
7921925c | 1086 | register Lisp_Object val; |
bfb96cb7 | 1087 | |
b7826503 | 1088 | CHECK_SYMBOL (symbol); |
f35d5bad | 1089 | valcontents = SYMBOL_VALUE (symbol); |
7921925c | 1090 | |
aabf6bec KH |
1091 | if (BUFFER_LOCAL_VALUEP (valcontents) |
1092 | || SOME_BUFFER_LOCAL_VALUEP (valcontents)) | |
2a359158 | 1093 | valcontents = swap_in_symval_forwarding (symbol, valcontents); |
7921925c | 1094 | |
536b772a KH |
1095 | if (MISCP (valcontents)) |
1096 | { | |
324a6eef | 1097 | switch (XMISCTYPE (valcontents)) |
46b2ac21 KH |
1098 | { |
1099 | case Lisp_Misc_Intfwd: | |
1100 | XSETINT (val, *XINTFWD (valcontents)->intvar); | |
1101 | return val; | |
7921925c | 1102 | |
46b2ac21 KH |
1103 | case Lisp_Misc_Boolfwd: |
1104 | return (*XBOOLFWD (valcontents)->boolvar ? Qt : Qnil); | |
7921925c | 1105 | |
46b2ac21 KH |
1106 | case Lisp_Misc_Objfwd: |
1107 | return *XOBJFWD (valcontents)->objvar; | |
7921925c | 1108 | |
46b2ac21 | 1109 | case Lisp_Misc_Buffer_Objfwd: |
f6cd0527 | 1110 | return PER_BUFFER_VALUE (current_buffer, |
999b32fd | 1111 | XBUFFER_OBJFWD (valcontents)->offset); |
7403b5c8 | 1112 | |
e5f8af9e KH |
1113 | case Lisp_Misc_Kboard_Objfwd: |
1114 | return *(Lisp_Object *)(XKBOARD_OBJFWD (valcontents)->offset | |
1115 | + (char *)current_kboard); | |
46b2ac21 | 1116 | } |
7921925c JB |
1117 | } |
1118 | ||
1119 | return valcontents; | |
1120 | } | |
1121 | ||
14e76af9 | 1122 | DEFUN ("symbol-value", Fsymbol_value, Ssymbol_value, 1, 1, 0, |
8c1a1077 PJ |
1123 | doc: /* Return SYMBOL's value. Error if that is void. */) |
1124 | (symbol) | |
d9c2a0f2 | 1125 | Lisp_Object symbol; |
14e76af9 | 1126 | { |
0671d7c0 | 1127 | Lisp_Object val; |
14e76af9 | 1128 | |
d9c2a0f2 | 1129 | val = find_symbol_value (symbol); |
14e76af9 | 1130 | if (EQ (val, Qunbound)) |
d9c2a0f2 | 1131 | return Fsignal (Qvoid_variable, Fcons (symbol, Qnil)); |
14e76af9 JB |
1132 | else |
1133 | return val; | |
1134 | } | |
1135 | ||
7921925c | 1136 | DEFUN ("set", Fset, Sset, 2, 2, 0, |
8c1a1077 PJ |
1137 | doc: /* Set SYMBOL's value to NEWVAL, and return NEWVAL. */) |
1138 | (symbol, newval) | |
d9c2a0f2 | 1139 | register Lisp_Object symbol, newval; |
05ef7169 | 1140 | { |
2829d05f | 1141 | return set_internal (symbol, newval, current_buffer, 0); |
05ef7169 RS |
1142 | } |
1143 | ||
1f35ce36 RS |
1144 | /* Return 1 if SYMBOL currently has a let-binding |
1145 | which was made in the buffer that is now current. */ | |
1146 | ||
1147 | static int | |
1148 | let_shadows_buffer_binding_p (symbol) | |
1149 | Lisp_Object symbol; | |
1150 | { | |
92426155 | 1151 | volatile struct specbinding *p; |
1f35ce36 RS |
1152 | |
1153 | for (p = specpdl_ptr - 1; p >= specpdl; p--) | |
f35d5bad GM |
1154 | if (p->func == NULL |
1155 | && CONSP (p->symbol)) | |
1156 | { | |
1157 | Lisp_Object let_bound_symbol = XCAR (p->symbol); | |
1158 | if ((EQ (symbol, let_bound_symbol) | |
1159 | || (XSYMBOL (let_bound_symbol)->indirect_variable | |
1160 | && EQ (symbol, indirect_variable (let_bound_symbol)))) | |
1161 | && XBUFFER (XCDR (XCDR (p->symbol))) == current_buffer) | |
1162 | break; | |
1163 | } | |
1f35ce36 | 1164 | |
f35d5bad | 1165 | return p >= specpdl; |
1f35ce36 RS |
1166 | } |
1167 | ||
25638b07 | 1168 | /* Store the value NEWVAL into SYMBOL. |
2829d05f RS |
1169 | If buffer-locality is an issue, BUF specifies which buffer to use. |
1170 | (0 stands for the current buffer.) | |
1171 | ||
05ef7169 RS |
1172 | If BINDFLAG is zero, then if this symbol is supposed to become |
1173 | local in every buffer where it is set, then we make it local. | |
1174 | If BINDFLAG is nonzero, we don't do that. */ | |
1175 | ||
1176 | Lisp_Object | |
2829d05f | 1177 | set_internal (symbol, newval, buf, bindflag) |
05ef7169 | 1178 | register Lisp_Object symbol, newval; |
2829d05f | 1179 | struct buffer *buf; |
05ef7169 | 1180 | int bindflag; |
7921925c | 1181 | { |
1bfcade3 | 1182 | int voide = EQ (newval, Qunbound); |
7921925c | 1183 | |
4c47c973 | 1184 | register Lisp_Object valcontents, innercontents, tem1, current_alist_element; |
7921925c | 1185 | |
2829d05f RS |
1186 | if (buf == 0) |
1187 | buf = current_buffer; | |
1188 | ||
1189 | /* If restoring in a dead buffer, do nothing. */ | |
1190 | if (NILP (buf->name)) | |
1191 | return newval; | |
1192 | ||
b7826503 | 1193 | CHECK_SYMBOL (symbol); |
f35d5bad GM |
1194 | if (SYMBOL_CONSTANT_P (symbol) |
1195 | && (NILP (Fkeywordp (symbol)) | |
1196 | || !EQ (newval, SYMBOL_VALUE (symbol)))) | |
d9c2a0f2 | 1197 | return Fsignal (Qsetting_constant, Fcons (symbol, Qnil)); |
4c47c973 | 1198 | |
f35d5bad | 1199 | innercontents = valcontents = SYMBOL_VALUE (symbol); |
bfb96cb7 | 1200 | |
e9ebc175 | 1201 | if (BUFFER_OBJFWDP (valcontents)) |
7921925c | 1202 | { |
999b32fd | 1203 | int offset = XBUFFER_OBJFWD (valcontents)->offset; |
f6cd0527 | 1204 | int idx = PER_BUFFER_IDX (offset); |
999b32fd GM |
1205 | if (idx > 0 |
1206 | && !bindflag | |
1207 | && !let_shadows_buffer_binding_p (symbol)) | |
f6cd0527 | 1208 | SET_PER_BUFFER_VALUE_P (buf, idx, 1); |
7921925c | 1209 | } |
e9ebc175 KH |
1210 | else if (BUFFER_LOCAL_VALUEP (valcontents) |
1211 | || SOME_BUFFER_LOCAL_VALUEP (valcontents)) | |
7921925c | 1212 | { |
42e975f0 | 1213 | /* valcontents is a struct Lisp_Buffer_Local_Value. */ |
f35d5bad GM |
1214 | if (XSYMBOL (symbol)->indirect_variable) |
1215 | symbol = indirect_variable (symbol); | |
42e975f0 RS |
1216 | |
1217 | /* What binding is loaded right now? */ | |
b0c2d1c6 | 1218 | current_alist_element |
7539e11f | 1219 | = XCAR (XBUFFER_LOCAL_VALUE (valcontents)->cdr); |
d8cafeb5 JB |
1220 | |
1221 | /* If the current buffer is not the buffer whose binding is | |
42e975f0 RS |
1222 | loaded, or if there may be frame-local bindings and the frame |
1223 | isn't the right one, or if it's a Lisp_Buffer_Local_Value and | |
1224 | the default binding is loaded, the loaded binding may be the | |
1225 | wrong one. */ | |
8801a864 KR |
1226 | if (!BUFFERP (XBUFFER_LOCAL_VALUE (valcontents)->buffer) |
1227 | || buf != XBUFFER (XBUFFER_LOCAL_VALUE (valcontents)->buffer) | |
42e975f0 RS |
1228 | || (XBUFFER_LOCAL_VALUE (valcontents)->check_frame |
1229 | && !EQ (selected_frame, XBUFFER_LOCAL_VALUE (valcontents)->frame)) | |
1230 | || (BUFFER_LOCAL_VALUEP (valcontents) | |
1231 | && EQ (XCAR (current_alist_element), | |
1232 | current_alist_element))) | |
7921925c | 1233 | { |
42e975f0 RS |
1234 | /* The currently loaded binding is not necessarily valid. |
1235 | We need to unload it, and choose a new binding. */ | |
1236 | ||
1237 | /* Write out `realvalue' to the old loaded binding. */ | |
d8cafeb5 | 1238 | Fsetcdr (current_alist_element, |
b0c2d1c6 | 1239 | do_symval_forwarding (XBUFFER_LOCAL_VALUE (valcontents)->realvalue)); |
7921925c | 1240 | |
42e975f0 | 1241 | /* Find the new binding. */ |
2829d05f | 1242 | tem1 = Fassq (symbol, buf->local_var_alist); |
b0c2d1c6 RS |
1243 | XBUFFER_LOCAL_VALUE (valcontents)->found_for_buffer = 1; |
1244 | XBUFFER_LOCAL_VALUE (valcontents)->found_for_frame = 0; | |
1245 | ||
a33ef3ab | 1246 | if (NILP (tem1)) |
d8cafeb5 JB |
1247 | { |
1248 | /* This buffer still sees the default value. */ | |
1249 | ||
1250 | /* If the variable is a Lisp_Some_Buffer_Local_Value, | |
05ef7169 | 1251 | or if this is `let' rather than `set', |
d8cafeb5 | 1252 | make CURRENT-ALIST-ELEMENT point to itself, |
1f35ce36 RS |
1253 | indicating that we're seeing the default value. |
1254 | Likewise if the variable has been let-bound | |
1255 | in the current buffer. */ | |
1256 | if (bindflag || SOME_BUFFER_LOCAL_VALUEP (valcontents) | |
1257 | || let_shadows_buffer_binding_p (symbol)) | |
b0c2d1c6 RS |
1258 | { |
1259 | XBUFFER_LOCAL_VALUE (valcontents)->found_for_buffer = 0; | |
1260 | ||
1261 | if (XBUFFER_LOCAL_VALUE (valcontents)->check_frame) | |
1cc04aed GM |
1262 | tem1 = Fassq (symbol, |
1263 | XFRAME (selected_frame)->param_alist); | |
d8cafeb5 | 1264 | |
b0c2d1c6 RS |
1265 | if (! NILP (tem1)) |
1266 | XBUFFER_LOCAL_VALUE (valcontents)->found_for_frame = 1; | |
1267 | else | |
1268 | tem1 = XBUFFER_LOCAL_VALUE (valcontents)->cdr; | |
1269 | } | |
05ef7169 | 1270 | /* If it's a Lisp_Buffer_Local_Value, being set not bound, |
1f35ce36 RS |
1271 | and we're not within a let that was made for this buffer, |
1272 | create a new buffer-local binding for the variable. | |
1273 | That means, give this buffer a new assoc for a local value | |
42e975f0 | 1274 | and load that binding. */ |
d8cafeb5 JB |
1275 | else |
1276 | { | |
d2fde41d | 1277 | tem1 = Fcons (symbol, XCDR (current_alist_element)); |
2829d05f RS |
1278 | buf->local_var_alist |
1279 | = Fcons (tem1, buf->local_var_alist); | |
d8cafeb5 JB |
1280 | } |
1281 | } | |
b0c2d1c6 | 1282 | |
42e975f0 | 1283 | /* Record which binding is now loaded. */ |
f3fbd155 KR |
1284 | XSETCAR (XBUFFER_LOCAL_VALUE (valcontents)->cdr, |
1285 | tem1); | |
d8cafeb5 | 1286 | |
42e975f0 | 1287 | /* Set `buffer' and `frame' slots for thebinding now loaded. */ |
2829d05f | 1288 | XSETBUFFER (XBUFFER_LOCAL_VALUE (valcontents)->buffer, buf); |
1cc04aed | 1289 | XBUFFER_LOCAL_VALUE (valcontents)->frame = selected_frame; |
7921925c | 1290 | } |
4c47c973 | 1291 | innercontents = XBUFFER_LOCAL_VALUE (valcontents)->realvalue; |
7921925c | 1292 | } |
d8cafeb5 | 1293 | |
7921925c JB |
1294 | /* If storing void (making the symbol void), forward only through |
1295 | buffer-local indicator, not through Lisp_Objfwd, etc. */ | |
1296 | if (voide) | |
7a283f36 | 1297 | store_symval_forwarding (symbol, Qnil, newval, buf); |
7921925c | 1298 | else |
7a283f36 | 1299 | store_symval_forwarding (symbol, innercontents, newval, buf); |
4c47c973 GM |
1300 | |
1301 | /* If we just set a variable whose current binding is frame-local, | |
1302 | store the new value in the frame parameter too. */ | |
1303 | ||
1304 | if (BUFFER_LOCAL_VALUEP (valcontents) | |
1305 | || SOME_BUFFER_LOCAL_VALUEP (valcontents)) | |
1306 | { | |
1307 | /* What binding is loaded right now? */ | |
1308 | current_alist_element | |
1309 | = XCAR (XBUFFER_LOCAL_VALUE (valcontents)->cdr); | |
1310 | ||
1311 | /* If the current buffer is not the buffer whose binding is | |
1312 | loaded, or if there may be frame-local bindings and the frame | |
1313 | isn't the right one, or if it's a Lisp_Buffer_Local_Value and | |
1314 | the default binding is loaded, the loaded binding may be the | |
1315 | wrong one. */ | |
1316 | if (XBUFFER_LOCAL_VALUE (valcontents)->found_for_frame) | |
f3fbd155 | 1317 | XSETCDR (current_alist_element, newval); |
4c47c973 | 1318 | } |
d8cafeb5 | 1319 | |
7921925c JB |
1320 | return newval; |
1321 | } | |
1322 | \f | |
1323 | /* Access or set a buffer-local symbol's default value. */ | |
1324 | ||
d9c2a0f2 | 1325 | /* Return the default value of SYMBOL, but don't check for voidness. |
1bfcade3 | 1326 | Return Qunbound if it is void. */ |
7921925c JB |
1327 | |
1328 | Lisp_Object | |
d9c2a0f2 EN |
1329 | default_value (symbol) |
1330 | Lisp_Object symbol; | |
7921925c JB |
1331 | { |
1332 | register Lisp_Object valcontents; | |
1333 | ||
b7826503 | 1334 | CHECK_SYMBOL (symbol); |
f35d5bad | 1335 | valcontents = SYMBOL_VALUE (symbol); |
7921925c JB |
1336 | |
1337 | /* For a built-in buffer-local variable, get the default value | |
1338 | rather than letting do_symval_forwarding get the current value. */ | |
e9ebc175 | 1339 | if (BUFFER_OBJFWDP (valcontents)) |
7921925c | 1340 | { |
999b32fd | 1341 | int offset = XBUFFER_OBJFWD (valcontents)->offset; |
f6cd0527 GM |
1342 | if (PER_BUFFER_IDX (offset) != 0) |
1343 | return PER_BUFFER_DEFAULT (offset); | |
7921925c JB |
1344 | } |
1345 | ||
1346 | /* Handle user-created local variables. */ | |
e9ebc175 KH |
1347 | if (BUFFER_LOCAL_VALUEP (valcontents) |
1348 | || SOME_BUFFER_LOCAL_VALUEP (valcontents)) | |
7921925c JB |
1349 | { |
1350 | /* If var is set up for a buffer that lacks a local value for it, | |
1351 | the current value is nominally the default value. | |
42e975f0 | 1352 | But the `realvalue' slot may be more up to date, since |
7921925c JB |
1353 | ordinary setq stores just that slot. So use that. */ |
1354 | Lisp_Object current_alist_element, alist_element_car; | |
1355 | current_alist_element | |
7539e11f KR |
1356 | = XCAR (XBUFFER_LOCAL_VALUE (valcontents)->cdr); |
1357 | alist_element_car = XCAR (current_alist_element); | |
7921925c | 1358 | if (EQ (alist_element_car, current_alist_element)) |
b0c2d1c6 | 1359 | return do_symval_forwarding (XBUFFER_LOCAL_VALUE (valcontents)->realvalue); |
7921925c | 1360 | else |
7539e11f | 1361 | return XCDR (XBUFFER_LOCAL_VALUE (valcontents)->cdr); |
7921925c JB |
1362 | } |
1363 | /* For other variables, get the current value. */ | |
1364 | return do_symval_forwarding (valcontents); | |
1365 | } | |
1366 | ||
1367 | DEFUN ("default-boundp", Fdefault_boundp, Sdefault_boundp, 1, 1, 0, | |
8c1a1077 PJ |
1368 | doc: /* Return t if SYMBOL has a non-void default value. |
1369 | This is the value that is seen in buffers that do not have their own values | |
1370 | for this variable. */) | |
1371 | (symbol) | |
d9c2a0f2 | 1372 | Lisp_Object symbol; |
7921925c JB |
1373 | { |
1374 | register Lisp_Object value; | |
1375 | ||
d9c2a0f2 | 1376 | value = default_value (symbol); |
1bfcade3 | 1377 | return (EQ (value, Qunbound) ? Qnil : Qt); |
7921925c JB |
1378 | } |
1379 | ||
1380 | DEFUN ("default-value", Fdefault_value, Sdefault_value, 1, 1, 0, | |
8c1a1077 PJ |
1381 | doc: /* Return SYMBOL's default value. |
1382 | This is the value that is seen in buffers that do not have their own values | |
1383 | for this variable. The default value is meaningful for variables with | |
1384 | local bindings in certain buffers. */) | |
1385 | (symbol) | |
d9c2a0f2 | 1386 | Lisp_Object symbol; |
7921925c JB |
1387 | { |
1388 | register Lisp_Object value; | |
1389 | ||
d9c2a0f2 | 1390 | value = default_value (symbol); |
1bfcade3 | 1391 | if (EQ (value, Qunbound)) |
d9c2a0f2 | 1392 | return Fsignal (Qvoid_variable, Fcons (symbol, Qnil)); |
7921925c JB |
1393 | return value; |
1394 | } | |
1395 | ||
1396 | DEFUN ("set-default", Fset_default, Sset_default, 2, 2, 0, | |
8c1a1077 PJ |
1397 | doc: /* Set SYMBOL's default value to VAL. SYMBOL and VAL are evaluated. |
1398 | The default value is seen in buffers that do not have their own values | |
1399 | for this variable. */) | |
1400 | (symbol, value) | |
d9c2a0f2 | 1401 | Lisp_Object symbol, value; |
7921925c JB |
1402 | { |
1403 | register Lisp_Object valcontents, current_alist_element, alist_element_buffer; | |
1404 | ||
b7826503 | 1405 | CHECK_SYMBOL (symbol); |
f35d5bad | 1406 | valcontents = SYMBOL_VALUE (symbol); |
7921925c JB |
1407 | |
1408 | /* Handle variables like case-fold-search that have special slots | |
1409 | in the buffer. Make them work apparently like Lisp_Buffer_Local_Value | |
1410 | variables. */ | |
e9ebc175 | 1411 | if (BUFFER_OBJFWDP (valcontents)) |
7921925c | 1412 | { |
999b32fd | 1413 | int offset = XBUFFER_OBJFWD (valcontents)->offset; |
f6cd0527 | 1414 | int idx = PER_BUFFER_IDX (offset); |
7921925c | 1415 | |
f6cd0527 | 1416 | PER_BUFFER_DEFAULT (offset) = value; |
984ef137 KH |
1417 | |
1418 | /* If this variable is not always local in all buffers, | |
1419 | set it in the buffers that don't nominally have a local value. */ | |
999b32fd | 1420 | if (idx > 0) |
7921925c | 1421 | { |
999b32fd | 1422 | struct buffer *b; |
bfb96cb7 | 1423 | |
7921925c | 1424 | for (b = all_buffers; b; b = b->next) |
f6cd0527 GM |
1425 | if (!PER_BUFFER_VALUE_P (b, idx)) |
1426 | PER_BUFFER_VALUE (b, offset) = value; | |
7921925c JB |
1427 | } |
1428 | return value; | |
1429 | } | |
1430 | ||
e9ebc175 KH |
1431 | if (!BUFFER_LOCAL_VALUEP (valcontents) |
1432 | && !SOME_BUFFER_LOCAL_VALUEP (valcontents)) | |
d9c2a0f2 | 1433 | return Fset (symbol, value); |
7921925c | 1434 | |
42e975f0 | 1435 | /* Store new value into the DEFAULT-VALUE slot. */ |
f3fbd155 | 1436 | XSETCDR (XBUFFER_LOCAL_VALUE (valcontents)->cdr, value); |
7921925c | 1437 | |
42e975f0 | 1438 | /* If the default binding is now loaded, set the REALVALUE slot too. */ |
8d4afcac | 1439 | current_alist_element |
7539e11f | 1440 | = XCAR (XBUFFER_LOCAL_VALUE (valcontents)->cdr); |
7921925c JB |
1441 | alist_element_buffer = Fcar (current_alist_element); |
1442 | if (EQ (alist_element_buffer, current_alist_element)) | |
7a283f36 GM |
1443 | store_symval_forwarding (symbol, |
1444 | XBUFFER_LOCAL_VALUE (valcontents)->realvalue, | |
1445 | value, NULL); | |
7921925c JB |
1446 | |
1447 | return value; | |
1448 | } | |
1449 | ||
1450 | DEFUN ("setq-default", Fsetq_default, Ssetq_default, 2, UNEVALLED, 0, | |
8c1a1077 PJ |
1451 | doc: /* Set the default value of variable VAR to VALUE. |
1452 | VAR, the variable name, is literal (not evaluated); | |
bfb96cb7 | 1453 | VALUE is an expression: it is evaluated and its value returned. |
8c1a1077 PJ |
1454 | The default value of a variable is seen in buffers |
1455 | that do not have their own values for the variable. | |
1456 | ||
1457 | More generally, you can use multiple variables and values, as in | |
1458 | (setq-default SYMBOL VALUE SYMBOL VALUE...) | |
1459 | This sets each SYMBOL's default value to the corresponding VALUE. | |
1460 | The VALUE for the Nth SYMBOL can refer to the new default values | |
f9d1e467 PJ |
1461 | of previous SYMs. |
1462 | usage: (setq-default SYMBOL VALUE [SYMBOL VALUE...]) */) | |
8c1a1077 | 1463 | (args) |
7921925c JB |
1464 | Lisp_Object args; |
1465 | { | |
1466 | register Lisp_Object args_left; | |
d9c2a0f2 | 1467 | register Lisp_Object val, symbol; |
7921925c JB |
1468 | struct gcpro gcpro1; |
1469 | ||
a33ef3ab | 1470 | if (NILP (args)) |
7921925c JB |
1471 | return Qnil; |
1472 | ||
1473 | args_left = args; | |
1474 | GCPRO1 (args); | |
1475 | ||
1476 | do | |
1477 | { | |
1478 | val = Feval (Fcar (Fcdr (args_left))); | |
d2fde41d | 1479 | symbol = XCAR (args_left); |
d9c2a0f2 | 1480 | Fset_default (symbol, val); |
d2fde41d | 1481 | args_left = Fcdr (XCDR (args_left)); |
7921925c | 1482 | } |
a33ef3ab | 1483 | while (!NILP (args_left)); |
7921925c JB |
1484 | |
1485 | UNGCPRO; | |
1486 | return val; | |
1487 | } | |
1488 | \f | |
a5ca2b75 JB |
1489 | /* Lisp functions for creating and removing buffer-local variables. */ |
1490 | ||
7921925c | 1491 | DEFUN ("make-variable-buffer-local", Fmake_variable_buffer_local, Smake_variable_buffer_local, |
8c1a1077 PJ |
1492 | 1, 1, "vMake Variable Buffer Local: ", |
1493 | doc: /* Make VARIABLE become buffer-local whenever it is set. | |
1494 | At any time, the value for the current buffer is in effect, | |
1495 | unless the variable has never been set in this buffer, | |
1496 | in which case the default value is in effect. | |
1497 | Note that binding the variable with `let', or setting it while | |
1498 | a `let'-style binding made in this buffer is in effect, | |
bfb96cb7 | 1499 | does not make the variable buffer-local. Return VARIABLE. |
8c1a1077 PJ |
1500 | |
1501 | The function `default-value' gets the default value and `set-default' sets it. */) | |
1502 | (variable) | |
d9c2a0f2 | 1503 | register Lisp_Object variable; |
7921925c | 1504 | { |
8d4afcac | 1505 | register Lisp_Object tem, valcontents, newval; |
7921925c | 1506 | |
b7826503 | 1507 | CHECK_SYMBOL (variable); |
6b61353c | 1508 | variable = indirect_variable (variable); |
7921925c | 1509 | |
f35d5bad | 1510 | valcontents = SYMBOL_VALUE (variable); |
d9c2a0f2 | 1511 | if (EQ (variable, Qnil) || EQ (variable, Qt) || KBOARD_OBJFWDP (valcontents)) |
d5db4077 | 1512 | error ("Symbol %s may not be buffer-local", SDATA (SYMBOL_NAME (variable))); |
7921925c | 1513 | |
e9ebc175 | 1514 | if (BUFFER_LOCAL_VALUEP (valcontents) || BUFFER_OBJFWDP (valcontents)) |
d9c2a0f2 | 1515 | return variable; |
e9ebc175 | 1516 | if (SOME_BUFFER_LOCAL_VALUEP (valcontents)) |
7921925c | 1517 | { |
f35d5bad | 1518 | XMISCTYPE (SYMBOL_VALUE (variable)) = Lisp_Misc_Buffer_Local_Value; |
d9c2a0f2 | 1519 | return variable; |
7921925c JB |
1520 | } |
1521 | if (EQ (valcontents, Qunbound)) | |
f35d5bad | 1522 | SET_SYMBOL_VALUE (variable, Qnil); |
d9c2a0f2 | 1523 | tem = Fcons (Qnil, Fsymbol_value (variable)); |
f3fbd155 | 1524 | XSETCAR (tem, tem); |
8d4afcac | 1525 | newval = allocate_misc (); |
324a6eef | 1526 | XMISCTYPE (newval) = Lisp_Misc_Buffer_Local_Value; |
f35d5bad | 1527 | XBUFFER_LOCAL_VALUE (newval)->realvalue = SYMBOL_VALUE (variable); |
b0c2d1c6 RS |
1528 | XBUFFER_LOCAL_VALUE (newval)->buffer = Fcurrent_buffer (); |
1529 | XBUFFER_LOCAL_VALUE (newval)->frame = Qnil; | |
42e975f0 | 1530 | XBUFFER_LOCAL_VALUE (newval)->found_for_buffer = 0; |
b0c2d1c6 RS |
1531 | XBUFFER_LOCAL_VALUE (newval)->found_for_frame = 0; |
1532 | XBUFFER_LOCAL_VALUE (newval)->check_frame = 0; | |
1533 | XBUFFER_LOCAL_VALUE (newval)->cdr = tem; | |
f35d5bad | 1534 | SET_SYMBOL_VALUE (variable, newval); |
d9c2a0f2 | 1535 | return variable; |
7921925c JB |
1536 | } |
1537 | ||
1538 | DEFUN ("make-local-variable", Fmake_local_variable, Smake_local_variable, | |
8c1a1077 PJ |
1539 | 1, 1, "vMake Local Variable: ", |
1540 | doc: /* Make VARIABLE have a separate value in the current buffer. | |
1541 | Other buffers will continue to share a common default value. | |
1542 | \(The buffer-local value of VARIABLE starts out as the same value | |
1543 | VARIABLE previously had. If VARIABLE was void, it remains void.\) | |
bfb96cb7 | 1544 | See also `make-variable-buffer-local'. Return VARIABLE. |
8c1a1077 PJ |
1545 | |
1546 | If the variable is already arranged to become local when set, | |
1547 | this function causes a local value to exist for this buffer, | |
1548 | just as setting the variable would do. | |
1549 | ||
1550 | This function returns VARIABLE, and therefore | |
1551 | (set (make-local-variable 'VARIABLE) VALUE-EXP) | |
1552 | works. | |
1553 | ||
1554 | Do not use `make-local-variable' to make a hook variable buffer-local. | |
515f3f25 | 1555 | Instead, use `add-hook' and specify t for the LOCAL argument. */) |
8c1a1077 | 1556 | (variable) |
d9c2a0f2 | 1557 | register Lisp_Object variable; |
7921925c JB |
1558 | { |
1559 | register Lisp_Object tem, valcontents; | |
1560 | ||
b7826503 | 1561 | CHECK_SYMBOL (variable); |
6b61353c | 1562 | variable = indirect_variable (variable); |
7921925c | 1563 | |
f35d5bad | 1564 | valcontents = SYMBOL_VALUE (variable); |
d9c2a0f2 | 1565 | if (EQ (variable, Qnil) || EQ (variable, Qt) || KBOARD_OBJFWDP (valcontents)) |
d5db4077 | 1566 | error ("Symbol %s may not be buffer-local", SDATA (SYMBOL_NAME (variable))); |
7921925c | 1567 | |
e9ebc175 | 1568 | if (BUFFER_LOCAL_VALUEP (valcontents) || BUFFER_OBJFWDP (valcontents)) |
7921925c | 1569 | { |
d9c2a0f2 | 1570 | tem = Fboundp (variable); |
7403b5c8 | 1571 | |
7921925c JB |
1572 | /* Make sure the symbol has a local value in this particular buffer, |
1573 | by setting it to the same value it already has. */ | |
d9c2a0f2 EN |
1574 | Fset (variable, (EQ (tem, Qt) ? Fsymbol_value (variable) : Qunbound)); |
1575 | return variable; | |
7921925c | 1576 | } |
42e975f0 | 1577 | /* Make sure symbol is set up to hold per-buffer values. */ |
e9ebc175 | 1578 | if (!SOME_BUFFER_LOCAL_VALUEP (valcontents)) |
7921925c | 1579 | { |
8d4afcac | 1580 | Lisp_Object newval; |
7921925c | 1581 | tem = Fcons (Qnil, do_symval_forwarding (valcontents)); |
f3fbd155 | 1582 | XSETCAR (tem, tem); |
8d4afcac | 1583 | newval = allocate_misc (); |
324a6eef | 1584 | XMISCTYPE (newval) = Lisp_Misc_Some_Buffer_Local_Value; |
f35d5bad | 1585 | XBUFFER_LOCAL_VALUE (newval)->realvalue = SYMBOL_VALUE (variable); |
b0c2d1c6 RS |
1586 | XBUFFER_LOCAL_VALUE (newval)->buffer = Qnil; |
1587 | XBUFFER_LOCAL_VALUE (newval)->frame = Qnil; | |
1588 | XBUFFER_LOCAL_VALUE (newval)->found_for_buffer = 0; | |
1589 | XBUFFER_LOCAL_VALUE (newval)->found_for_frame = 0; | |
1590 | XBUFFER_LOCAL_VALUE (newval)->check_frame = 0; | |
1591 | XBUFFER_LOCAL_VALUE (newval)->cdr = tem; | |
f35d5bad | 1592 | SET_SYMBOL_VALUE (variable, newval);; |
7921925c | 1593 | } |
42e975f0 | 1594 | /* Make sure this buffer has its own value of symbol. */ |
d9c2a0f2 | 1595 | tem = Fassq (variable, current_buffer->local_var_alist); |
a33ef3ab | 1596 | if (NILP (tem)) |
7921925c | 1597 | { |
a5d004a1 RS |
1598 | /* Swap out any local binding for some other buffer, and make |
1599 | sure the current value is permanently recorded, if it's the | |
1600 | default value. */ | |
d9c2a0f2 | 1601 | find_symbol_value (variable); |
a5d004a1 | 1602 | |
7921925c | 1603 | current_buffer->local_var_alist |
f35d5bad | 1604 | = Fcons (Fcons (variable, XCDR (XBUFFER_LOCAL_VALUE (SYMBOL_VALUE (variable))->cdr)), |
7921925c JB |
1605 | current_buffer->local_var_alist); |
1606 | ||
1607 | /* Make sure symbol does not think it is set up for this buffer; | |
42e975f0 | 1608 | force it to look once again for this buffer's value. */ |
7921925c | 1609 | { |
8d4afcac | 1610 | Lisp_Object *pvalbuf; |
a5d004a1 | 1611 | |
f35d5bad | 1612 | valcontents = SYMBOL_VALUE (variable); |
a5d004a1 | 1613 | |
b0c2d1c6 | 1614 | pvalbuf = &XBUFFER_LOCAL_VALUE (valcontents)->buffer; |
8d4afcac KH |
1615 | if (current_buffer == XBUFFER (*pvalbuf)) |
1616 | *pvalbuf = Qnil; | |
b0c2d1c6 | 1617 | XBUFFER_LOCAL_VALUE (valcontents)->found_for_buffer = 0; |
7921925c | 1618 | } |
7921925c | 1619 | } |
a5ca2b75 | 1620 | |
42e975f0 RS |
1621 | /* If the symbol forwards into a C variable, then load the binding |
1622 | for this buffer now. If C code modifies the variable before we | |
1623 | load the binding in, then that new value will clobber the default | |
1624 | binding the next time we unload it. */ | |
f35d5bad | 1625 | valcontents = XBUFFER_LOCAL_VALUE (SYMBOL_VALUE (variable))->realvalue; |
e9ebc175 | 1626 | if (INTFWDP (valcontents) || BOOLFWDP (valcontents) || OBJFWDP (valcontents)) |
f35d5bad | 1627 | swap_in_symval_forwarding (variable, SYMBOL_VALUE (variable)); |
a5ca2b75 | 1628 | |
d9c2a0f2 | 1629 | return variable; |
7921925c JB |
1630 | } |
1631 | ||
1632 | DEFUN ("kill-local-variable", Fkill_local_variable, Skill_local_variable, | |
8c1a1077 PJ |
1633 | 1, 1, "vKill Local Variable: ", |
1634 | doc: /* Make VARIABLE no longer have a separate value in the current buffer. | |
bfb96cb7 | 1635 | From now on the default value will apply in this buffer. Return VARIABLE. */) |
8c1a1077 | 1636 | (variable) |
d9c2a0f2 | 1637 | register Lisp_Object variable; |
7921925c JB |
1638 | { |
1639 | register Lisp_Object tem, valcontents; | |
1640 | ||
b7826503 | 1641 | CHECK_SYMBOL (variable); |
6b61353c | 1642 | variable = indirect_variable (variable); |
7921925c | 1643 | |
f35d5bad | 1644 | valcontents = SYMBOL_VALUE (variable); |
7921925c | 1645 | |
e9ebc175 | 1646 | if (BUFFER_OBJFWDP (valcontents)) |
7921925c | 1647 | { |
999b32fd | 1648 | int offset = XBUFFER_OBJFWD (valcontents)->offset; |
f6cd0527 | 1649 | int idx = PER_BUFFER_IDX (offset); |
7921925c | 1650 | |
999b32fd | 1651 | if (idx > 0) |
7921925c | 1652 | { |
f6cd0527 GM |
1653 | SET_PER_BUFFER_VALUE_P (current_buffer, idx, 0); |
1654 | PER_BUFFER_VALUE (current_buffer, offset) | |
1655 | = PER_BUFFER_DEFAULT (offset); | |
7921925c | 1656 | } |
d9c2a0f2 | 1657 | return variable; |
7921925c JB |
1658 | } |
1659 | ||
e9ebc175 KH |
1660 | if (!BUFFER_LOCAL_VALUEP (valcontents) |
1661 | && !SOME_BUFFER_LOCAL_VALUEP (valcontents)) | |
d9c2a0f2 | 1662 | return variable; |
7921925c | 1663 | |
42e975f0 | 1664 | /* Get rid of this buffer's alist element, if any. */ |
7921925c | 1665 | |
d9c2a0f2 | 1666 | tem = Fassq (variable, current_buffer->local_var_alist); |
a33ef3ab | 1667 | if (!NILP (tem)) |
8d4afcac KH |
1668 | current_buffer->local_var_alist |
1669 | = Fdelq (tem, current_buffer->local_var_alist); | |
7921925c | 1670 | |
42e975f0 RS |
1671 | /* If the symbol is set up with the current buffer's binding |
1672 | loaded, recompute its value. We have to do it now, or else | |
1673 | forwarded objects won't work right. */ | |
7921925c | 1674 | { |
999e6484 | 1675 | Lisp_Object *pvalbuf, buf; |
f35d5bad | 1676 | valcontents = SYMBOL_VALUE (variable); |
b0c2d1c6 | 1677 | pvalbuf = &XBUFFER_LOCAL_VALUE (valcontents)->buffer; |
999e6484 SM |
1678 | XSETBUFFER (buf, current_buffer); |
1679 | if (EQ (buf, *pvalbuf)) | |
79c83e03 KH |
1680 | { |
1681 | *pvalbuf = Qnil; | |
b0c2d1c6 | 1682 | XBUFFER_LOCAL_VALUE (valcontents)->found_for_buffer = 0; |
978dd578 | 1683 | find_symbol_value (variable); |
79c83e03 | 1684 | } |
7921925c JB |
1685 | } |
1686 | ||
d9c2a0f2 | 1687 | return variable; |
7921925c | 1688 | } |
62476adc | 1689 | |
b0c2d1c6 RS |
1690 | /* Lisp functions for creating and removing buffer-local variables. */ |
1691 | ||
1692 | DEFUN ("make-variable-frame-local", Fmake_variable_frame_local, Smake_variable_frame_local, | |
8c1a1077 PJ |
1693 | 1, 1, "vMake Variable Frame Local: ", |
1694 | doc: /* Enable VARIABLE to have frame-local bindings. | |
1695 | When a frame-local binding exists in the current frame, | |
1696 | it is in effect whenever the current buffer has no buffer-local binding. | |
76b3cecf | 1697 | A frame-local binding is actually a frame parameter value; |
bfb96cb7 FP |
1698 | thus, any given frame has a local binding for VARIABLE if it has |
1699 | a value for the frame parameter named VARIABLE. Return VARIABLE. | |
76b3cecf | 1700 | See `modify-frame-parameters' for how to set frame parameters. */) |
8c1a1077 | 1701 | (variable) |
b0c2d1c6 RS |
1702 | register Lisp_Object variable; |
1703 | { | |
1704 | register Lisp_Object tem, valcontents, newval; | |
1705 | ||
b7826503 | 1706 | CHECK_SYMBOL (variable); |
6b61353c | 1707 | variable = indirect_variable (variable); |
b0c2d1c6 | 1708 | |
f35d5bad | 1709 | valcontents = SYMBOL_VALUE (variable); |
b0c2d1c6 RS |
1710 | if (EQ (variable, Qnil) || EQ (variable, Qt) || KBOARD_OBJFWDP (valcontents) |
1711 | || BUFFER_OBJFWDP (valcontents)) | |
d5db4077 | 1712 | error ("Symbol %s may not be frame-local", SDATA (SYMBOL_NAME (variable))); |
b0c2d1c6 RS |
1713 | |
1714 | if (BUFFER_LOCAL_VALUEP (valcontents) | |
1715 | || SOME_BUFFER_LOCAL_VALUEP (valcontents)) | |
42e975f0 RS |
1716 | { |
1717 | XBUFFER_LOCAL_VALUE (valcontents)->check_frame = 1; | |
1718 | return variable; | |
1719 | } | |
b0c2d1c6 RS |
1720 | |
1721 | if (EQ (valcontents, Qunbound)) | |
f35d5bad | 1722 | SET_SYMBOL_VALUE (variable, Qnil); |
b0c2d1c6 | 1723 | tem = Fcons (Qnil, Fsymbol_value (variable)); |
f3fbd155 | 1724 | XSETCAR (tem, tem); |
b0c2d1c6 RS |
1725 | newval = allocate_misc (); |
1726 | XMISCTYPE (newval) = Lisp_Misc_Some_Buffer_Local_Value; | |
f35d5bad | 1727 | XBUFFER_LOCAL_VALUE (newval)->realvalue = SYMBOL_VALUE (variable); |
b0c2d1c6 RS |
1728 | XBUFFER_LOCAL_VALUE (newval)->buffer = Qnil; |
1729 | XBUFFER_LOCAL_VALUE (newval)->frame = Qnil; | |
1730 | XBUFFER_LOCAL_VALUE (newval)->found_for_buffer = 0; | |
1731 | XBUFFER_LOCAL_VALUE (newval)->found_for_frame = 0; | |
1732 | XBUFFER_LOCAL_VALUE (newval)->check_frame = 1; | |
1733 | XBUFFER_LOCAL_VALUE (newval)->cdr = tem; | |
f35d5bad | 1734 | SET_SYMBOL_VALUE (variable, newval); |
b0c2d1c6 RS |
1735 | return variable; |
1736 | } | |
1737 | ||
62476adc | 1738 | DEFUN ("local-variable-p", Flocal_variable_p, Slocal_variable_p, |
8c1a1077 PJ |
1739 | 1, 2, 0, |
1740 | doc: /* Non-nil if VARIABLE has a local binding in buffer BUFFER. | |
1741 | BUFFER defaults to the current buffer. */) | |
1742 | (variable, buffer) | |
d9c2a0f2 | 1743 | register Lisp_Object variable, buffer; |
62476adc RS |
1744 | { |
1745 | Lisp_Object valcontents; | |
c48ead86 KH |
1746 | register struct buffer *buf; |
1747 | ||
1748 | if (NILP (buffer)) | |
1749 | buf = current_buffer; | |
1750 | else | |
1751 | { | |
b7826503 | 1752 | CHECK_BUFFER (buffer); |
c48ead86 KH |
1753 | buf = XBUFFER (buffer); |
1754 | } | |
62476adc | 1755 | |
b7826503 | 1756 | CHECK_SYMBOL (variable); |
6b61353c | 1757 | variable = indirect_variable (variable); |
62476adc | 1758 | |
f35d5bad | 1759 | valcontents = SYMBOL_VALUE (variable); |
c48ead86 | 1760 | if (BUFFER_LOCAL_VALUEP (valcontents) |
1e5f16fa | 1761 | || SOME_BUFFER_LOCAL_VALUEP (valcontents)) |
c48ead86 KH |
1762 | { |
1763 | Lisp_Object tail, elt; | |
f35d5bad | 1764 | |
7539e11f | 1765 | for (tail = buf->local_var_alist; CONSP (tail); tail = XCDR (tail)) |
c48ead86 | 1766 | { |
7539e11f KR |
1767 | elt = XCAR (tail); |
1768 | if (EQ (variable, XCAR (elt))) | |
c48ead86 KH |
1769 | return Qt; |
1770 | } | |
1771 | } | |
1772 | if (BUFFER_OBJFWDP (valcontents)) | |
1773 | { | |
1774 | int offset = XBUFFER_OBJFWD (valcontents)->offset; | |
f6cd0527 GM |
1775 | int idx = PER_BUFFER_IDX (offset); |
1776 | if (idx == -1 || PER_BUFFER_VALUE_P (buf, idx)) | |
c48ead86 KH |
1777 | return Qt; |
1778 | } | |
1779 | return Qnil; | |
62476adc | 1780 | } |
f4f04cee RS |
1781 | |
1782 | DEFUN ("local-variable-if-set-p", Flocal_variable_if_set_p, Slocal_variable_if_set_p, | |
8c1a1077 PJ |
1783 | 1, 2, 0, |
1784 | doc: /* Non-nil if VARIABLE will be local in buffer BUFFER if it is set there. | |
1785 | BUFFER defaults to the current buffer. */) | |
1786 | (variable, buffer) | |
d9c2a0f2 | 1787 | register Lisp_Object variable, buffer; |
f4f04cee RS |
1788 | { |
1789 | Lisp_Object valcontents; | |
1790 | register struct buffer *buf; | |
1791 | ||
1792 | if (NILP (buffer)) | |
1793 | buf = current_buffer; | |
1794 | else | |
1795 | { | |
b7826503 | 1796 | CHECK_BUFFER (buffer); |
f4f04cee RS |
1797 | buf = XBUFFER (buffer); |
1798 | } | |
1799 | ||
b7826503 | 1800 | CHECK_SYMBOL (variable); |
6b61353c | 1801 | variable = indirect_variable (variable); |
f4f04cee | 1802 | |
f35d5bad | 1803 | valcontents = SYMBOL_VALUE (variable); |
f4f04cee RS |
1804 | |
1805 | /* This means that make-variable-buffer-local was done. */ | |
1806 | if (BUFFER_LOCAL_VALUEP (valcontents)) | |
1807 | return Qt; | |
1808 | /* All these slots become local if they are set. */ | |
1809 | if (BUFFER_OBJFWDP (valcontents)) | |
1810 | return Qt; | |
1811 | if (SOME_BUFFER_LOCAL_VALUEP (valcontents)) | |
1812 | { | |
1813 | Lisp_Object tail, elt; | |
7539e11f | 1814 | for (tail = buf->local_var_alist; CONSP (tail); tail = XCDR (tail)) |
f4f04cee | 1815 | { |
7539e11f KR |
1816 | elt = XCAR (tail); |
1817 | if (EQ (variable, XCAR (elt))) | |
f4f04cee RS |
1818 | return Qt; |
1819 | } | |
1820 | } | |
1821 | return Qnil; | |
1822 | } | |
6b61353c KH |
1823 | |
1824 | DEFUN ("variable-binding-locus", Fvariable_binding_locus, Svariable_binding_locus, | |
1825 | 1, 1, 0, | |
1826 | doc: /* Return a value indicating where VARIABLE's current binding comes from. | |
1827 | If the current binding is buffer-local, the value is the current buffer. | |
1828 | If the current binding is frame-local, the value is the selected frame. | |
1829 | If the current binding is global (the default), the value is nil. */) | |
1830 | (variable) | |
1831 | register Lisp_Object variable; | |
1832 | { | |
1833 | Lisp_Object valcontents; | |
1834 | ||
1835 | CHECK_SYMBOL (variable); | |
1836 | variable = indirect_variable (variable); | |
1837 | ||
1838 | /* Make sure the current binding is actually swapped in. */ | |
1839 | find_symbol_value (variable); | |
1840 | ||
1841 | valcontents = XSYMBOL (variable)->value; | |
1842 | ||
1843 | if (BUFFER_LOCAL_VALUEP (valcontents) | |
1844 | || SOME_BUFFER_LOCAL_VALUEP (valcontents) | |
1845 | || BUFFER_OBJFWDP (valcontents)) | |
1846 | { | |
1847 | /* For a local variable, record both the symbol and which | |
1848 | buffer's or frame's value we are saving. */ | |
1849 | if (!NILP (Flocal_variable_p (variable, Qnil))) | |
1850 | return Fcurrent_buffer (); | |
1851 | else if (!BUFFER_OBJFWDP (valcontents) | |
1852 | && XBUFFER_LOCAL_VALUE (valcontents)->found_for_frame) | |
1853 | return XBUFFER_LOCAL_VALUE (valcontents)->frame; | |
1854 | } | |
1855 | ||
1856 | return Qnil; | |
1857 | } | |
7921925c | 1858 | \f |
ffd56f97 JB |
1859 | /* Find the function at the end of a chain of symbol function indirections. */ |
1860 | ||
1861 | /* If OBJECT is a symbol, find the end of its function chain and | |
1862 | return the value found there. If OBJECT is not a symbol, just | |
1863 | return it. If there is a cycle in the function chain, signal a | |
1864 | cyclic-function-indirection error. | |
1865 | ||
1866 | This is like Findirect_function, except that it doesn't signal an | |
1867 | error if the chain ends up unbound. */ | |
1868 | Lisp_Object | |
a2932990 | 1869 | indirect_function (object) |
62476adc | 1870 | register Lisp_Object object; |
ffd56f97 | 1871 | { |
eb8c3be9 | 1872 | Lisp_Object tortoise, hare; |
ffd56f97 | 1873 | |
eb8c3be9 | 1874 | hare = tortoise = object; |
ffd56f97 JB |
1875 | |
1876 | for (;;) | |
1877 | { | |
e9ebc175 | 1878 | if (!SYMBOLP (hare) || EQ (hare, Qunbound)) |
ffd56f97 JB |
1879 | break; |
1880 | hare = XSYMBOL (hare)->function; | |
e9ebc175 | 1881 | if (!SYMBOLP (hare) || EQ (hare, Qunbound)) |
ffd56f97 JB |
1882 | break; |
1883 | hare = XSYMBOL (hare)->function; | |
1884 | ||
eb8c3be9 | 1885 | tortoise = XSYMBOL (tortoise)->function; |
ffd56f97 | 1886 | |
eb8c3be9 | 1887 | if (EQ (hare, tortoise)) |
ffd56f97 JB |
1888 | Fsignal (Qcyclic_function_indirection, Fcons (object, Qnil)); |
1889 | } | |
1890 | ||
1891 | return hare; | |
1892 | } | |
1893 | ||
1894 | DEFUN ("indirect-function", Findirect_function, Sindirect_function, 1, 1, 0, | |
8c1a1077 PJ |
1895 | doc: /* Return the function at the end of OBJECT's function chain. |
1896 | If OBJECT is a symbol, follow all function indirections and return the final | |
1897 | function binding. | |
1898 | If OBJECT is not a symbol, just return it. | |
1899 | Signal a void-function error if the final symbol is unbound. | |
1900 | Signal a cyclic-function-indirection error if there is a loop in the | |
1901 | function chain of symbols. */) | |
1902 | (object) | |
1903 | register Lisp_Object object; | |
ffd56f97 JB |
1904 | { |
1905 | Lisp_Object result; | |
1906 | ||
1907 | result = indirect_function (object); | |
1908 | ||
1909 | if (EQ (result, Qunbound)) | |
1910 | return Fsignal (Qvoid_function, Fcons (object, Qnil)); | |
1911 | return result; | |
1912 | } | |
1913 | \f | |
7921925c JB |
1914 | /* Extract and set vector and string elements */ |
1915 | ||
1916 | DEFUN ("aref", Faref, Saref, 2, 2, 0, | |
8c1a1077 PJ |
1917 | doc: /* Return the element of ARRAY at index IDX. |
1918 | ARRAY may be a vector, a string, a char-table, a bool-vector, | |
1919 | or a byte-code object. IDX starts at 0. */) | |
1920 | (array, idx) | |
7921925c JB |
1921 | register Lisp_Object array; |
1922 | Lisp_Object idx; | |
1923 | { | |
1924 | register int idxval; | |
1925 | ||
b7826503 | 1926 | CHECK_NUMBER (idx); |
7921925c | 1927 | idxval = XINT (idx); |
e9ebc175 | 1928 | if (STRINGP (array)) |
7921925c | 1929 | { |
25638b07 RS |
1930 | int c, idxval_byte; |
1931 | ||
d5db4077 | 1932 | if (idxval < 0 || idxval >= SCHARS (array)) |
c24e4efe | 1933 | args_out_of_range (array, idx); |
25638b07 | 1934 | if (! STRING_MULTIBYTE (array)) |
d5db4077 | 1935 | return make_number ((unsigned char) SREF (array, idxval)); |
25638b07 RS |
1936 | idxval_byte = string_char_to_byte (array, idxval); |
1937 | ||
29f44a37 | 1938 | c = STRING_CHAR (SDATA (array) + idxval_byte, |
d5db4077 | 1939 | SBYTES (array) - idxval_byte); |
25638b07 | 1940 | return make_number (c); |
7921925c | 1941 | } |
4d276982 RS |
1942 | else if (BOOL_VECTOR_P (array)) |
1943 | { | |
1944 | int val; | |
4d276982 RS |
1945 | |
1946 | if (idxval < 0 || idxval >= XBOOL_VECTOR (array)->size) | |
1947 | args_out_of_range (array, idx); | |
1948 | ||
68be917d KH |
1949 | val = (unsigned char) XBOOL_VECTOR (array)->data[idxval / BITS_PER_CHAR]; |
1950 | return (val & (1 << (idxval % BITS_PER_CHAR)) ? Qt : Qnil); | |
4d276982 RS |
1951 | } |
1952 | else if (CHAR_TABLE_P (array)) | |
1953 | { | |
e6e1f521 KH |
1954 | CHECK_CHARACTER (idx); |
1955 | return CHAR_TABLE_REF (array, idxval); | |
4d276982 | 1956 | } |
7921925c | 1957 | else |
c24e4efe | 1958 | { |
6bbd7a29 | 1959 | int size = 0; |
7f358972 RS |
1960 | if (VECTORP (array)) |
1961 | size = XVECTOR (array)->size; | |
1962 | else if (COMPILEDP (array)) | |
1963 | size = XVECTOR (array)->size & PSEUDOVECTOR_SIZE_MASK; | |
1964 | else | |
1965 | wrong_type_argument (Qarrayp, array); | |
1966 | ||
1967 | if (idxval < 0 || idxval >= size) | |
c24e4efe KH |
1968 | args_out_of_range (array, idx); |
1969 | return XVECTOR (array)->contents[idxval]; | |
1970 | } | |
7921925c JB |
1971 | } |
1972 | ||
3c9de1af KH |
1973 | /* Don't use alloca for relocating string data larger than this, lest |
1974 | we overflow their stack. The value is the same as what used in | |
1975 | fns.c for base64 handling. */ | |
1976 | #define MAX_ALLOCA 16*1024 | |
1977 | ||
7921925c | 1978 | DEFUN ("aset", Faset, Saset, 3, 3, 0, |
8c1a1077 | 1979 | doc: /* Store into the element of ARRAY at index IDX the value NEWELT. |
bfb96cb7 FP |
1980 | Return NEWELT. ARRAY may be a vector, a string, a char-table or a |
1981 | bool-vector. IDX starts at 0. */) | |
8c1a1077 | 1982 | (array, idx, newelt) |
7921925c JB |
1983 | register Lisp_Object array; |
1984 | Lisp_Object idx, newelt; | |
1985 | { | |
1986 | register int idxval; | |
1987 | ||
b7826503 | 1988 | CHECK_NUMBER (idx); |
7921925c | 1989 | idxval = XINT (idx); |
4d276982 RS |
1990 | if (!VECTORP (array) && !STRINGP (array) && !BOOL_VECTOR_P (array) |
1991 | && ! CHAR_TABLE_P (array)) | |
7921925c | 1992 | array = wrong_type_argument (Qarrayp, array); |
7921925c JB |
1993 | CHECK_IMPURE (array); |
1994 | ||
e9ebc175 | 1995 | if (VECTORP (array)) |
c24e4efe KH |
1996 | { |
1997 | if (idxval < 0 || idxval >= XVECTOR (array)->size) | |
1998 | args_out_of_range (array, idx); | |
1999 | XVECTOR (array)->contents[idxval] = newelt; | |
2000 | } | |
4d276982 RS |
2001 | else if (BOOL_VECTOR_P (array)) |
2002 | { | |
2003 | int val; | |
4d276982 RS |
2004 | |
2005 | if (idxval < 0 || idxval >= XBOOL_VECTOR (array)->size) | |
2006 | args_out_of_range (array, idx); | |
2007 | ||
68be917d | 2008 | val = (unsigned char) XBOOL_VECTOR (array)->data[idxval / BITS_PER_CHAR]; |
4d276982 RS |
2009 | |
2010 | if (! NILP (newelt)) | |
68be917d | 2011 | val |= 1 << (idxval % BITS_PER_CHAR); |
4d276982 | 2012 | else |
68be917d KH |
2013 | val &= ~(1 << (idxval % BITS_PER_CHAR)); |
2014 | XBOOL_VECTOR (array)->data[idxval / BITS_PER_CHAR] = val; | |
4d276982 RS |
2015 | } |
2016 | else if (CHAR_TABLE_P (array)) | |
2017 | { | |
e6e1f521 KH |
2018 | CHECK_CHARACTER (idx); |
2019 | CHAR_TABLE_SET (array, idxval, newelt); | |
4d276982 | 2020 | } |
25638b07 RS |
2021 | else if (STRING_MULTIBYTE (array)) |
2022 | { | |
c6464167 | 2023 | int idxval_byte, prev_bytes, new_bytes, nbytes; |
3c9de1af | 2024 | unsigned char workbuf[MAX_MULTIBYTE_LENGTH], *p0 = workbuf, *p1; |
25638b07 | 2025 | |
d5db4077 | 2026 | if (idxval < 0 || idxval >= SCHARS (array)) |
25638b07 | 2027 | args_out_of_range (array, idx); |
d9130605 | 2028 | CHECK_CHARACTER (newelt); |
25638b07 | 2029 | |
c6464167 MB |
2030 | nbytes = SBYTES (array); |
2031 | ||
25638b07 | 2032 | idxval_byte = string_char_to_byte (array, idxval); |
29f44a37 | 2033 | p1 = SDATA (array) + idxval_byte; |
3c9de1af KH |
2034 | PARSE_MULTIBYTE_SEQ (p1, nbytes - idxval_byte, prev_bytes); |
2035 | new_bytes = CHAR_STRING (XINT (newelt), p0); | |
2036 | if (prev_bytes != new_bytes) | |
2037 | { | |
2038 | /* We must relocate the string data. */ | |
d5db4077 | 2039 | int nchars = SCHARS (array); |
3c9de1af KH |
2040 | unsigned char *str; |
2041 | ||
2042 | str = (nbytes <= MAX_ALLOCA | |
2043 | ? (unsigned char *) alloca (nbytes) | |
2044 | : (unsigned char *) xmalloc (nbytes)); | |
d5db4077 | 2045 | bcopy (SDATA (array), str, nbytes); |
3c9de1af KH |
2046 | allocate_string_data (XSTRING (array), nchars, |
2047 | nbytes + new_bytes - prev_bytes); | |
d5db4077 KR |
2048 | bcopy (str, SDATA (array), idxval_byte); |
2049 | p1 = SDATA (array) + idxval_byte; | |
3c9de1af KH |
2050 | bcopy (str + idxval_byte + prev_bytes, p1 + new_bytes, |
2051 | nbytes - (idxval_byte + prev_bytes)); | |
2052 | if (nbytes > MAX_ALLOCA) | |
2053 | xfree (str); | |
2054 | clear_string_char_byte_cache (); | |
2055 | } | |
2056 | while (new_bytes--) | |
2057 | *p1++ = *p0++; | |
25638b07 | 2058 | } |
7921925c JB |
2059 | else |
2060 | { | |
d5db4077 | 2061 | if (idxval < 0 || idxval >= SCHARS (array)) |
c24e4efe | 2062 | args_out_of_range (array, idx); |
b7826503 | 2063 | CHECK_NUMBER (newelt); |
3c9de1af | 2064 | |
d9130605 KH |
2065 | if (XINT (newelt) < 0 || ASCII_CHAR_P (XINT (newelt)) |
2066 | || CHAR_BYTE8_P (XINT (newelt))) | |
29f44a37 | 2067 | SSET (array, idxval, XINT (newelt)); |
3c9de1af KH |
2068 | else |
2069 | { | |
2070 | /* We must relocate the string data while converting it to | |
2071 | multibyte. */ | |
2072 | int idxval_byte, prev_bytes, new_bytes; | |
2073 | unsigned char workbuf[MAX_MULTIBYTE_LENGTH], *p0 = workbuf, *p1; | |
d5db4077 | 2074 | unsigned char *origstr = SDATA (array), *str; |
3c9de1af KH |
2075 | int nchars, nbytes; |
2076 | ||
d5db4077 | 2077 | nchars = SCHARS (array); |
3c9de1af KH |
2078 | nbytes = idxval_byte = count_size_as_multibyte (origstr, idxval); |
2079 | nbytes += count_size_as_multibyte (origstr + idxval, | |
2080 | nchars - idxval); | |
2081 | str = (nbytes <= MAX_ALLOCA | |
2082 | ? (unsigned char *) alloca (nbytes) | |
2083 | : (unsigned char *) xmalloc (nbytes)); | |
d5db4077 | 2084 | copy_text (SDATA (array), str, nchars, 0, 1); |
3c9de1af KH |
2085 | PARSE_MULTIBYTE_SEQ (str + idxval_byte, nbytes - idxval_byte, |
2086 | prev_bytes); | |
2087 | new_bytes = CHAR_STRING (XINT (newelt), p0); | |
2088 | allocate_string_data (XSTRING (array), nchars, | |
2089 | nbytes + new_bytes - prev_bytes); | |
d5db4077 KR |
2090 | bcopy (str, SDATA (array), idxval_byte); |
2091 | p1 = SDATA (array) + idxval_byte; | |
3c9de1af KH |
2092 | while (new_bytes--) |
2093 | *p1++ = *p0++; | |
2094 | bcopy (str + idxval_byte + prev_bytes, p1, | |
2095 | nbytes - (idxval_byte + prev_bytes)); | |
2096 | if (nbytes > MAX_ALLOCA) | |
2097 | xfree (str); | |
2098 | clear_string_char_byte_cache (); | |
2099 | } | |
7921925c JB |
2100 | } |
2101 | ||
2102 | return newelt; | |
2103 | } | |
7921925c JB |
2104 | \f |
2105 | /* Arithmetic functions */ | |
2106 | ||
2107 | enum comparison { equal, notequal, less, grtr, less_or_equal, grtr_or_equal }; | |
2108 | ||
2109 | Lisp_Object | |
2110 | arithcompare (num1, num2, comparison) | |
2111 | Lisp_Object num1, num2; | |
2112 | enum comparison comparison; | |
2113 | { | |
6bbd7a29 | 2114 | double f1 = 0, f2 = 0; |
7921925c JB |
2115 | int floatp = 0; |
2116 | ||
b7826503 PJ |
2117 | CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (num1); |
2118 | CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (num2); | |
7921925c | 2119 | |
e9ebc175 | 2120 | if (FLOATP (num1) || FLOATP (num2)) |
7921925c JB |
2121 | { |
2122 | floatp = 1; | |
7539e11f KR |
2123 | f1 = (FLOATP (num1)) ? XFLOAT_DATA (num1) : XINT (num1); |
2124 | f2 = (FLOATP (num2)) ? XFLOAT_DATA (num2) : XINT (num2); | |
7921925c | 2125 | } |
7921925c JB |
2126 | |
2127 | switch (comparison) | |
2128 | { | |
2129 | case equal: | |
2130 | if (floatp ? f1 == f2 : XINT (num1) == XINT (num2)) | |
2131 | return Qt; | |
2132 | return Qnil; | |
2133 | ||
2134 | case notequal: | |
2135 | if (floatp ? f1 != f2 : XINT (num1) != XINT (num2)) | |
2136 | return Qt; | |
2137 | return Qnil; | |
2138 | ||
2139 | case less: | |
2140 | if (floatp ? f1 < f2 : XINT (num1) < XINT (num2)) | |
2141 | return Qt; | |
2142 | return Qnil; | |
2143 | ||
2144 | case less_or_equal: | |
2145 | if (floatp ? f1 <= f2 : XINT (num1) <= XINT (num2)) | |
2146 | return Qt; | |
2147 | return Qnil; | |
2148 | ||
2149 | case grtr: | |
2150 | if (floatp ? f1 > f2 : XINT (num1) > XINT (num2)) | |
2151 | return Qt; | |
2152 | return Qnil; | |
2153 | ||
2154 | case grtr_or_equal: | |
2155 | if (floatp ? f1 >= f2 : XINT (num1) >= XINT (num2)) | |
2156 | return Qt; | |
2157 | return Qnil; | |
25e40a4b JB |
2158 | |
2159 | default: | |
2160 | abort (); | |
7921925c JB |
2161 | } |
2162 | } | |
2163 | ||
2164 | DEFUN ("=", Feqlsign, Seqlsign, 2, 2, 0, | |
8c1a1077 PJ |
2165 | doc: /* Return t if two args, both numbers or markers, are equal. */) |
2166 | (num1, num2) | |
7921925c JB |
2167 | register Lisp_Object num1, num2; |
2168 | { | |
2169 | return arithcompare (num1, num2, equal); | |
2170 | } | |
2171 | ||
2172 | DEFUN ("<", Flss, Slss, 2, 2, 0, | |
8c1a1077 PJ |
2173 | doc: /* Return t if first arg is less than second arg. Both must be numbers or markers. */) |
2174 | (num1, num2) | |
7921925c JB |
2175 | register Lisp_Object num1, num2; |
2176 | { | |
2177 | return arithcompare (num1, num2, less); | |
2178 | } | |
2179 | ||
2180 | DEFUN (">", Fgtr, Sgtr, 2, 2, 0, | |
8c1a1077 PJ |
2181 | doc: /* Return t if first arg is greater than second arg. Both must be numbers or markers. */) |
2182 | (num1, num2) | |
7921925c JB |
2183 | register Lisp_Object num1, num2; |
2184 | { | |
2185 | return arithcompare (num1, num2, grtr); | |
2186 | } | |
2187 | ||
2188 | DEFUN ("<=", Fleq, Sleq, 2, 2, 0, | |
8c1a1077 PJ |
2189 | doc: /* Return t if first arg is less than or equal to second arg. |
2190 | Both must be numbers or markers. */) | |
2191 | (num1, num2) | |
7921925c JB |
2192 | register Lisp_Object num1, num2; |
2193 | { | |
2194 | return arithcompare (num1, num2, less_or_equal); | |
2195 | } | |
2196 | ||
2197 | DEFUN (">=", Fgeq, Sgeq, 2, 2, 0, | |
8c1a1077 PJ |
2198 | doc: /* Return t if first arg is greater than or equal to second arg. |
2199 | Both must be numbers or markers. */) | |
2200 | (num1, num2) | |
7921925c JB |
2201 | register Lisp_Object num1, num2; |
2202 | { | |
2203 | return arithcompare (num1, num2, grtr_or_equal); | |
2204 | } | |
2205 | ||
2206 | DEFUN ("/=", Fneq, Sneq, 2, 2, 0, | |
8c1a1077 PJ |
2207 | doc: /* Return t if first arg is not equal to second arg. Both must be numbers or markers. */) |
2208 | (num1, num2) | |
7921925c JB |
2209 | register Lisp_Object num1, num2; |
2210 | { | |
2211 | return arithcompare (num1, num2, notequal); | |
2212 | } | |
2213 | ||
8c1a1077 PJ |
2214 | DEFUN ("zerop", Fzerop, Szerop, 1, 1, 0, |
2215 | doc: /* Return t if NUMBER is zero. */) | |
2216 | (number) | |
d9c2a0f2 | 2217 | register Lisp_Object number; |
7921925c | 2218 | { |
b7826503 | 2219 | CHECK_NUMBER_OR_FLOAT (number); |
7921925c | 2220 | |
d9c2a0f2 | 2221 | if (FLOATP (number)) |
7921925c | 2222 | { |
7539e11f | 2223 | if (XFLOAT_DATA (number) == 0.0) |
7921925c JB |
2224 | return Qt; |
2225 | return Qnil; | |
2226 | } | |
7921925c | 2227 | |
d9c2a0f2 | 2228 | if (!XINT (number)) |
7921925c JB |
2229 | return Qt; |
2230 | return Qnil; | |
2231 | } | |
2232 | \f | |
34f4f6c6 | 2233 | /* Convert between long values and pairs of Lisp integers. */ |
51cf3e31 JB |
2234 | |
2235 | Lisp_Object | |
2236 | long_to_cons (i) | |
2237 | unsigned long i; | |
2238 | { | |
9bc7166b | 2239 | unsigned long top = i >> 16; |
51cf3e31 JB |
2240 | unsigned int bot = i & 0xFFFF; |
2241 | if (top == 0) | |
2242 | return make_number (bot); | |
b42cfa11 | 2243 | if (top == (unsigned long)-1 >> 16) |
51cf3e31 JB |
2244 | return Fcons (make_number (-1), make_number (bot)); |
2245 | return Fcons (make_number (top), make_number (bot)); | |
2246 | } | |
2247 | ||
2248 | unsigned long | |
2249 | cons_to_long (c) | |
2250 | Lisp_Object c; | |
2251 | { | |
878a80cc | 2252 | Lisp_Object top, bot; |
51cf3e31 JB |
2253 | if (INTEGERP (c)) |
2254 | return XINT (c); | |
7539e11f KR |
2255 | top = XCAR (c); |
2256 | bot = XCDR (c); | |
51cf3e31 | 2257 | if (CONSP (bot)) |
7539e11f | 2258 | bot = XCAR (bot); |
51cf3e31 JB |
2259 | return ((XINT (top) << 16) | XINT (bot)); |
2260 | } | |
2261 | \f | |
f2980264 | 2262 | DEFUN ("number-to-string", Fnumber_to_string, Snumber_to_string, 1, 1, 0, |
bfb96cb7 | 2263 | doc: /* Return the decimal representation of NUMBER as a string. |
8c1a1077 PJ |
2264 | Uses a minus sign if negative. |
2265 | NUMBER may be an integer or a floating point number. */) | |
2266 | (number) | |
d9c2a0f2 | 2267 | Lisp_Object number; |
7921925c | 2268 | { |
6030ce64 | 2269 | char buffer[VALBITS]; |
7921925c | 2270 | |
b7826503 | 2271 | CHECK_NUMBER_OR_FLOAT (number); |
7921925c | 2272 | |
d9c2a0f2 | 2273 | if (FLOATP (number)) |
7921925c JB |
2274 | { |
2275 | char pigbuf[350]; /* see comments in float_to_string */ | |
2276 | ||
7539e11f | 2277 | float_to_string (pigbuf, XFLOAT_DATA (number)); |
7403b5c8 | 2278 | return build_string (pigbuf); |
7921925c | 2279 | } |
7921925c | 2280 | |
e6c82a8d | 2281 | if (sizeof (int) == sizeof (EMACS_INT)) |
d9c2a0f2 | 2282 | sprintf (buffer, "%d", XINT (number)); |
e6c82a8d | 2283 | else if (sizeof (long) == sizeof (EMACS_INT)) |
dd8daec5 | 2284 | sprintf (buffer, "%ld", (long) XINT (number)); |
e6c82a8d RS |
2285 | else |
2286 | abort (); | |
7921925c JB |
2287 | return build_string (buffer); |
2288 | } | |
2289 | ||
3883fbeb RS |
2290 | INLINE static int |
2291 | digit_to_number (character, base) | |
2292 | int character, base; | |
2293 | { | |
2294 | int digit; | |
2295 | ||
2296 | if (character >= '0' && character <= '9') | |
2297 | digit = character - '0'; | |
2298 | else if (character >= 'a' && character <= 'z') | |
2299 | digit = character - 'a' + 10; | |
2300 | else if (character >= 'A' && character <= 'Z') | |
2301 | digit = character - 'A' + 10; | |
2302 | else | |
2303 | return -1; | |
2304 | ||
2305 | if (digit >= base) | |
2306 | return -1; | |
2307 | else | |
2308 | return digit; | |
bfb96cb7 | 2309 | } |
3883fbeb RS |
2310 | |
2311 | DEFUN ("string-to-number", Fstring_to_number, Sstring_to_number, 1, 2, 0, | |
558ee900 | 2312 | doc: /* Parse STRING as a decimal number and return the number. |
8c1a1077 PJ |
2313 | This parses both integers and floating point numbers. |
2314 | It ignores leading spaces and tabs. | |
2315 | ||
2316 | If BASE, interpret STRING as a number in that base. If BASE isn't | |
2317 | present, base 10 is used. BASE must be between 2 and 16 (inclusive). | |
2318 | If the base used is not 10, floating point is not recognized. */) | |
2319 | (string, base) | |
3883fbeb | 2320 | register Lisp_Object string, base; |
7921925c | 2321 | { |
3883fbeb | 2322 | register unsigned char *p; |
342858a5 GM |
2323 | register int b; |
2324 | int sign = 1; | |
2325 | Lisp_Object val; | |
25e40a4b | 2326 | |
b7826503 | 2327 | CHECK_STRING (string); |
7921925c | 2328 | |
3883fbeb RS |
2329 | if (NILP (base)) |
2330 | b = 10; | |
2331 | else | |
2332 | { | |
b7826503 | 2333 | CHECK_NUMBER (base); |
3883fbeb RS |
2334 | b = XINT (base); |
2335 | if (b < 2 || b > 16) | |
2336 | Fsignal (Qargs_out_of_range, Fcons (base, Qnil)); | |
2337 | } | |
2338 | ||
25e40a4b JB |
2339 | /* Skip any whitespace at the front of the number. Some versions of |
2340 | atoi do this anyway, so we might as well make Emacs lisp consistent. */ | |
d5db4077 | 2341 | p = SDATA (string); |
0a3e4d65 | 2342 | while (*p == ' ' || *p == '\t') |
25e40a4b JB |
2343 | p++; |
2344 | ||
3883fbeb RS |
2345 | if (*p == '-') |
2346 | { | |
342858a5 | 2347 | sign = -1; |
3883fbeb RS |
2348 | p++; |
2349 | } | |
2350 | else if (*p == '+') | |
2351 | p++; | |
bfb96cb7 | 2352 | |
8e36ae7f | 2353 | if (isfloat_string (p) && b == 10) |
342858a5 GM |
2354 | val = make_float (sign * atof (p)); |
2355 | else | |
3883fbeb | 2356 | { |
342858a5 GM |
2357 | double v = 0; |
2358 | ||
2359 | while (1) | |
2360 | { | |
2361 | int digit = digit_to_number (*p++, b); | |
2362 | if (digit < 0) | |
2363 | break; | |
2364 | v = v * b + digit; | |
2365 | } | |
2366 | ||
cb938d46 | 2367 | val = make_fixnum_or_float (sign * v); |
3883fbeb | 2368 | } |
342858a5 GM |
2369 | |
2370 | return val; | |
7921925c | 2371 | } |
3883fbeb | 2372 | |
7403b5c8 | 2373 | \f |
7921925c | 2374 | enum arithop |
7a283f36 GM |
2375 | { |
2376 | Aadd, | |
2377 | Asub, | |
2378 | Amult, | |
2379 | Adiv, | |
2380 | Alogand, | |
2381 | Alogior, | |
2382 | Alogxor, | |
2383 | Amax, | |
2384 | Amin | |
2385 | }; | |
2386 | ||
2387 | static Lisp_Object float_arith_driver P_ ((double, int, enum arithop, | |
2388 | int, Lisp_Object *)); | |
ad8d56b9 | 2389 | extern Lisp_Object fmod_float (); |
b06faa91 | 2390 | |
7921925c | 2391 | Lisp_Object |
87fbf902 | 2392 | arith_driver (code, nargs, args) |
7921925c JB |
2393 | enum arithop code; |
2394 | int nargs; | |
2395 | register Lisp_Object *args; | |
2396 | { | |
2397 | register Lisp_Object val; | |
2398 | register int argnum; | |
7a283f36 | 2399 | register EMACS_INT accum = 0; |
5260234d | 2400 | register EMACS_INT next; |
7921925c | 2401 | |
0220c518 | 2402 | switch (SWITCH_ENUM_CAST (code)) |
7921925c JB |
2403 | { |
2404 | case Alogior: | |
2405 | case Alogxor: | |
2406 | case Aadd: | |
2407 | case Asub: | |
7a283f36 GM |
2408 | accum = 0; |
2409 | break; | |
7921925c | 2410 | case Amult: |
7a283f36 GM |
2411 | accum = 1; |
2412 | break; | |
7921925c | 2413 | case Alogand: |
7a283f36 GM |
2414 | accum = -1; |
2415 | break; | |
2416 | default: | |
2417 | break; | |
7921925c JB |
2418 | } |
2419 | ||
2420 | for (argnum = 0; argnum < nargs; argnum++) | |
2421 | { | |
7a283f36 GM |
2422 | /* Using args[argnum] as argument to CHECK_NUMBER_... */ |
2423 | val = args[argnum]; | |
b7826503 | 2424 | CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (val); |
7921925c | 2425 | |
7a283f36 GM |
2426 | if (FLOATP (val)) |
2427 | return float_arith_driver ((double) accum, argnum, code, | |
2428 | nargs, args); | |
2429 | args[argnum] = val; | |
7921925c | 2430 | next = XINT (args[argnum]); |
0220c518 | 2431 | switch (SWITCH_ENUM_CAST (code)) |
7921925c | 2432 | { |
7a283f36 GM |
2433 | case Aadd: |
2434 | accum += next; | |
2435 | break; | |
7921925c | 2436 | case Asub: |
e64981da | 2437 | accum = argnum ? accum - next : nargs == 1 ? - next : next; |
7921925c | 2438 | break; |
7a283f36 GM |
2439 | case Amult: |
2440 | accum *= next; | |
2441 | break; | |
7921925c | 2442 | case Adiv: |
7a283f36 GM |
2443 | if (!argnum) |
2444 | accum = next; | |
87fbf902 RS |
2445 | else |
2446 | { | |
2447 | if (next == 0) | |
2448 | Fsignal (Qarith_error, Qnil); | |
2449 | accum /= next; | |
2450 | } | |
7921925c | 2451 | break; |
7a283f36 GM |
2452 | case Alogand: |
2453 | accum &= next; | |
2454 | break; | |
2455 | case Alogior: | |
2456 | accum |= next; | |
2457 | break; | |
2458 | case Alogxor: | |
2459 | accum ^= next; | |
2460 | break; | |
2461 | case Amax: | |
2462 | if (!argnum || next > accum) | |
2463 | accum = next; | |
2464 | break; | |
2465 | case Amin: | |
2466 | if (!argnum || next < accum) | |
2467 | accum = next; | |
2468 | break; | |
7921925c JB |
2469 | } |
2470 | } | |
2471 | ||
f187f1f7 | 2472 | XSETINT (val, accum); |
7921925c JB |
2473 | return val; |
2474 | } | |
2475 | ||
1a2f2d33 KH |
2476 | #undef isnan |
2477 | #define isnan(x) ((x) != (x)) | |
2478 | ||
7a283f36 | 2479 | static Lisp_Object |
7921925c JB |
2480 | float_arith_driver (accum, argnum, code, nargs, args) |
2481 | double accum; | |
2482 | register int argnum; | |
2483 | enum arithop code; | |
2484 | int nargs; | |
2485 | register Lisp_Object *args; | |
2486 | { | |
2487 | register Lisp_Object val; | |
2488 | double next; | |
7403b5c8 | 2489 | |
7921925c JB |
2490 | for (; argnum < nargs; argnum++) |
2491 | { | |
2492 | val = args[argnum]; /* using args[argnum] as argument to CHECK_NUMBER_... */ | |
b7826503 | 2493 | CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (val); |
7921925c | 2494 | |
e9ebc175 | 2495 | if (FLOATP (val)) |
7921925c | 2496 | { |
7539e11f | 2497 | next = XFLOAT_DATA (val); |
7921925c JB |
2498 | } |
2499 | else | |
2500 | { | |
2501 | args[argnum] = val; /* runs into a compiler bug. */ | |
2502 | next = XINT (args[argnum]); | |
2503 | } | |
0220c518 | 2504 | switch (SWITCH_ENUM_CAST (code)) |
7921925c JB |
2505 | { |
2506 | case Aadd: | |
2507 | accum += next; | |
2508 | break; | |
2509 | case Asub: | |
e64981da | 2510 | accum = argnum ? accum - next : nargs == 1 ? - next : next; |
7921925c JB |
2511 | break; |
2512 | case Amult: | |
2513 | accum *= next; | |
2514 | break; | |
2515 | case Adiv: | |
2516 | if (!argnum) | |
2517 | accum = next; | |
2518 | else | |
87fbf902 | 2519 | { |
ad8d56b9 | 2520 | if (! IEEE_FLOATING_POINT && next == 0) |
87fbf902 RS |
2521 | Fsignal (Qarith_error, Qnil); |
2522 | accum /= next; | |
2523 | } | |
7921925c JB |
2524 | break; |
2525 | case Alogand: | |
2526 | case Alogior: | |
2527 | case Alogxor: | |
2528 | return wrong_type_argument (Qinteger_or_marker_p, val); | |
2529 | case Amax: | |
1a2f2d33 | 2530 | if (!argnum || isnan (next) || next > accum) |
7921925c JB |
2531 | accum = next; |
2532 | break; | |
2533 | case Amin: | |
1a2f2d33 | 2534 | if (!argnum || isnan (next) || next < accum) |
7921925c JB |
2535 | accum = next; |
2536 | break; | |
2537 | } | |
2538 | } | |
2539 | ||
2540 | return make_float (accum); | |
2541 | } | |
cc94f3b2 | 2542 | |
7921925c JB |
2543 | |
2544 | DEFUN ("+", Fplus, Splus, 0, MANY, 0, | |
8c1a1077 PJ |
2545 | doc: /* Return sum of any number of arguments, which are numbers or markers. |
2546 | usage: (+ &rest NUMBERS-OR-MARKERS) */) | |
2547 | (nargs, args) | |
7921925c JB |
2548 | int nargs; |
2549 | Lisp_Object *args; | |
2550 | { | |
2551 | return arith_driver (Aadd, nargs, args); | |
2552 | } | |
2553 | ||
2554 | DEFUN ("-", Fminus, Sminus, 0, MANY, 0, | |
558ee900 | 2555 | doc: /* Negate number or subtract numbers or markers and return the result. |
8c1a1077 | 2556 | With one arg, negates it. With more than one arg, |
f44fba9e | 2557 | subtracts all but the first from the first. |
8c1a1077 PJ |
2558 | usage: (- &optional NUMBER-OR-MARKER &rest MORE-NUMBERS-OR-MARKERS) */) |
2559 | (nargs, args) | |
7921925c JB |
2560 | int nargs; |
2561 | Lisp_Object *args; | |
2562 | { | |
2563 | return arith_driver (Asub, nargs, args); | |
2564 | } | |
2565 | ||
2566 | DEFUN ("*", Ftimes, Stimes, 0, MANY, 0, | |
be24eadf | 2567 | doc: /* Return product of any number of arguments, which are numbers or markers. |
8c1a1077 PJ |
2568 | usage: (* &rest NUMBERS-OR-MARKERS) */) |
2569 | (nargs, args) | |
7921925c JB |
2570 | int nargs; |
2571 | Lisp_Object *args; | |
2572 | { | |
2573 | return arith_driver (Amult, nargs, args); | |
2574 | } | |
2575 | ||
2576 | DEFUN ("/", Fquo, Squo, 2, MANY, 0, | |
be24eadf | 2577 | doc: /* Return first argument divided by all the remaining arguments. |
f44fba9e | 2578 | The arguments must be numbers or markers. |
8c1a1077 PJ |
2579 | usage: (/ DIVIDEND DIVISOR &rest DIVISORS) */) |
2580 | (nargs, args) | |
7921925c JB |
2581 | int nargs; |
2582 | Lisp_Object *args; | |
2583 | { | |
2584 | return arith_driver (Adiv, nargs, args); | |
2585 | } | |
2586 | ||
2587 | DEFUN ("%", Frem, Srem, 2, 2, 0, | |
be24eadf | 2588 | doc: /* Return remainder of X divided by Y. |
8c1a1077 PJ |
2589 | Both must be integers or markers. */) |
2590 | (x, y) | |
d9c2a0f2 | 2591 | register Lisp_Object x, y; |
7921925c JB |
2592 | { |
2593 | Lisp_Object val; | |
2594 | ||
b7826503 PJ |
2595 | CHECK_NUMBER_COERCE_MARKER (x); |
2596 | CHECK_NUMBER_COERCE_MARKER (y); | |
7921925c | 2597 | |
d9c2a0f2 | 2598 | if (XFASTINT (y) == 0) |
87fbf902 RS |
2599 | Fsignal (Qarith_error, Qnil); |
2600 | ||
d9c2a0f2 | 2601 | XSETINT (val, XINT (x) % XINT (y)); |
7921925c JB |
2602 | return val; |
2603 | } | |
2604 | ||
1d66a5fa KH |
2605 | #ifndef HAVE_FMOD |
2606 | double | |
2607 | fmod (f1, f2) | |
2608 | double f1, f2; | |
2609 | { | |
bc1c9d7e PE |
2610 | double r = f1; |
2611 | ||
fa43b1e8 KH |
2612 | if (f2 < 0.0) |
2613 | f2 = -f2; | |
bc1c9d7e PE |
2614 | |
2615 | /* If the magnitude of the result exceeds that of the divisor, or | |
2616 | the sign of the result does not agree with that of the dividend, | |
2617 | iterate with the reduced value. This does not yield a | |
2618 | particularly accurate result, but at least it will be in the | |
2619 | range promised by fmod. */ | |
2620 | do | |
2621 | r -= f2 * floor (r / f2); | |
2622 | while (f2 <= (r < 0 ? -r : r) || ((r < 0) != (f1 < 0) && ! isnan (r))); | |
2623 | ||
2624 | return r; | |
1d66a5fa KH |
2625 | } |
2626 | #endif /* ! HAVE_FMOD */ | |
2627 | ||
44fa9da5 | 2628 | DEFUN ("mod", Fmod, Smod, 2, 2, 0, |
be24eadf | 2629 | doc: /* Return X modulo Y. |
8c1a1077 PJ |
2630 | The result falls between zero (inclusive) and Y (exclusive). |
2631 | Both X and Y must be numbers or markers. */) | |
2632 | (x, y) | |
d9c2a0f2 | 2633 | register Lisp_Object x, y; |
44fa9da5 PE |
2634 | { |
2635 | Lisp_Object val; | |
5260234d | 2636 | EMACS_INT i1, i2; |
44fa9da5 | 2637 | |
b7826503 PJ |
2638 | CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (x); |
2639 | CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (y); | |
44fa9da5 | 2640 | |
d9c2a0f2 | 2641 | if (FLOATP (x) || FLOATP (y)) |
ad8d56b9 PE |
2642 | return fmod_float (x, y); |
2643 | ||
d9c2a0f2 EN |
2644 | i1 = XINT (x); |
2645 | i2 = XINT (y); | |
44fa9da5 PE |
2646 | |
2647 | if (i2 == 0) | |
2648 | Fsignal (Qarith_error, Qnil); | |
7403b5c8 | 2649 | |
44fa9da5 PE |
2650 | i1 %= i2; |
2651 | ||
2652 | /* If the "remainder" comes out with the wrong sign, fix it. */ | |
04f7ec69 | 2653 | if (i2 < 0 ? i1 > 0 : i1 < 0) |
44fa9da5 PE |
2654 | i1 += i2; |
2655 | ||
f187f1f7 | 2656 | XSETINT (val, i1); |
44fa9da5 PE |
2657 | return val; |
2658 | } | |
2659 | ||
7921925c | 2660 | DEFUN ("max", Fmax, Smax, 1, MANY, 0, |
8c1a1077 | 2661 | doc: /* Return largest of all the arguments (which must be numbers or markers). |
f44fba9e | 2662 | The value is always a number; markers are converted to numbers. |
8c1a1077 PJ |
2663 | usage: (max NUMBER-OR-MARKER &rest NUMBERS-OR-MARKERS) */) |
2664 | (nargs, args) | |
7921925c JB |
2665 | int nargs; |
2666 | Lisp_Object *args; | |
2667 | { | |
2668 | return arith_driver (Amax, nargs, args); | |
2669 | } | |
2670 | ||
2671 | DEFUN ("min", Fmin, Smin, 1, MANY, 0, | |
8c1a1077 | 2672 | doc: /* Return smallest of all the arguments (which must be numbers or markers). |
f44fba9e | 2673 | The value is always a number; markers are converted to numbers. |
8c1a1077 PJ |
2674 | usage: (min NUMBER-OR-MARKER &rest NUMBERS-OR-MARKERS) */) |
2675 | (nargs, args) | |
7921925c JB |
2676 | int nargs; |
2677 | Lisp_Object *args; | |
2678 | { | |
2679 | return arith_driver (Amin, nargs, args); | |
2680 | } | |
2681 | ||
2682 | DEFUN ("logand", Flogand, Slogand, 0, MANY, 0, | |
8c1a1077 | 2683 | doc: /* Return bitwise-and of all the arguments. |
f44fba9e | 2684 | Arguments may be integers, or markers converted to integers. |
8c1a1077 PJ |
2685 | usage: (logand &rest INTS-OR-MARKERS) */) |
2686 | (nargs, args) | |
7921925c JB |
2687 | int nargs; |
2688 | Lisp_Object *args; | |
2689 | { | |
2690 | return arith_driver (Alogand, nargs, args); | |
2691 | } | |
2692 | ||
2693 | DEFUN ("logior", Flogior, Slogior, 0, MANY, 0, | |
8c1a1077 | 2694 | doc: /* Return bitwise-or of all the arguments. |
f44fba9e | 2695 | Arguments may be integers, or markers converted to integers. |
8c1a1077 PJ |
2696 | usage: (logior &rest INTS-OR-MARKERS) */) |
2697 | (nargs, args) | |
7921925c JB |
2698 | int nargs; |
2699 | Lisp_Object *args; | |
2700 | { | |
2701 | return arith_driver (Alogior, nargs, args); | |
2702 | } | |
2703 | ||
2704 | DEFUN ("logxor", Flogxor, Slogxor, 0, MANY, 0, | |
8c1a1077 | 2705 | doc: /* Return bitwise-exclusive-or of all the arguments. |
f44fba9e | 2706 | Arguments may be integers, or markers converted to integers. |
8c1a1077 PJ |
2707 | usage: (logxor &rest INTS-OR-MARKERS) */) |
2708 | (nargs, args) | |
7921925c JB |
2709 | int nargs; |
2710 | Lisp_Object *args; | |
2711 | { | |
2712 | return arith_driver (Alogxor, nargs, args); | |
2713 | } | |
2714 | ||
2715 | DEFUN ("ash", Fash, Sash, 2, 2, 0, | |
8c1a1077 PJ |
2716 | doc: /* Return VALUE with its bits shifted left by COUNT. |
2717 | If COUNT is negative, shifting is actually to the right. | |
2718 | In this case, the sign bit is duplicated. */) | |
2719 | (value, count) | |
3b9f7964 | 2720 | register Lisp_Object value, count; |
7921925c JB |
2721 | { |
2722 | register Lisp_Object val; | |
2723 | ||
b7826503 PJ |
2724 | CHECK_NUMBER (value); |
2725 | CHECK_NUMBER (count); | |
7921925c | 2726 | |
81d70626 RS |
2727 | if (XINT (count) >= BITS_PER_EMACS_INT) |
2728 | XSETINT (val, 0); | |
2729 | else if (XINT (count) > 0) | |
3d9652eb | 2730 | XSETINT (val, XINT (value) << XFASTINT (count)); |
81d70626 RS |
2731 | else if (XINT (count) <= -BITS_PER_EMACS_INT) |
2732 | XSETINT (val, XINT (value) < 0 ? -1 : 0); | |
7921925c | 2733 | else |
3d9652eb | 2734 | XSETINT (val, XINT (value) >> -XINT (count)); |
7921925c JB |
2735 | return val; |
2736 | } | |
2737 | ||
2738 | DEFUN ("lsh", Flsh, Slsh, 2, 2, 0, | |
8c1a1077 PJ |
2739 | doc: /* Return VALUE with its bits shifted left by COUNT. |
2740 | If COUNT is negative, shifting is actually to the right. | |
3a9b1297 | 2741 | In this case, zeros are shifted in on the left. */) |
8c1a1077 | 2742 | (value, count) |
3d9652eb | 2743 | register Lisp_Object value, count; |
7921925c JB |
2744 | { |
2745 | register Lisp_Object val; | |
2746 | ||
b7826503 PJ |
2747 | CHECK_NUMBER (value); |
2748 | CHECK_NUMBER (count); | |
7921925c | 2749 | |
81d70626 RS |
2750 | if (XINT (count) >= BITS_PER_EMACS_INT) |
2751 | XSETINT (val, 0); | |
2752 | else if (XINT (count) > 0) | |
3d9652eb | 2753 | XSETINT (val, (EMACS_UINT) XUINT (value) << XFASTINT (count)); |
81d70626 RS |
2754 | else if (XINT (count) <= -BITS_PER_EMACS_INT) |
2755 | XSETINT (val, 0); | |
7921925c | 2756 | else |
3d9652eb | 2757 | XSETINT (val, (EMACS_UINT) XUINT (value) >> -XINT (count)); |
7921925c JB |
2758 | return val; |
2759 | } | |
2760 | ||
2761 | DEFUN ("1+", Fadd1, Sadd1, 1, 1, 0, | |
8c1a1077 PJ |
2762 | doc: /* Return NUMBER plus one. NUMBER may be a number or a marker. |
2763 | Markers are converted to integers. */) | |
2764 | (number) | |
d9c2a0f2 | 2765 | register Lisp_Object number; |
7921925c | 2766 | { |
b7826503 | 2767 | CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (number); |
7921925c | 2768 | |
d9c2a0f2 | 2769 | if (FLOATP (number)) |
7539e11f | 2770 | return (make_float (1.0 + XFLOAT_DATA (number))); |
7921925c | 2771 | |
d9c2a0f2 EN |
2772 | XSETINT (number, XINT (number) + 1); |
2773 | return number; | |
7921925c JB |
2774 | } |
2775 | ||
2776 | DEFUN ("1-", Fsub1, Ssub1, 1, 1, 0, | |
8c1a1077 PJ |
2777 | doc: /* Return NUMBER minus one. NUMBER may be a number or a marker. |
2778 | Markers are converted to integers. */) | |
2779 | (number) | |
d9c2a0f2 | 2780 | register Lisp_Object number; |
7921925c | 2781 | { |
b7826503 | 2782 | CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (number); |
7921925c | 2783 | |
d9c2a0f2 | 2784 | if (FLOATP (number)) |
7539e11f | 2785 | return (make_float (-1.0 + XFLOAT_DATA (number))); |
7921925c | 2786 | |
d9c2a0f2 EN |
2787 | XSETINT (number, XINT (number) - 1); |
2788 | return number; | |
7921925c JB |
2789 | } |
2790 | ||
2791 | DEFUN ("lognot", Flognot, Slognot, 1, 1, 0, | |
8c1a1077 PJ |
2792 | doc: /* Return the bitwise complement of NUMBER. NUMBER must be an integer. */) |
2793 | (number) | |
d9c2a0f2 | 2794 | register Lisp_Object number; |
7921925c | 2795 | { |
b7826503 | 2796 | CHECK_NUMBER (number); |
53924017 | 2797 | XSETINT (number, ~XINT (number)); |
d9c2a0f2 | 2798 | return number; |
7921925c | 2799 | } |
6b61353c KH |
2800 | |
2801 | DEFUN ("byteorder", Fbyteorder, Sbyteorder, 0, 0, 0, | |
2802 | doc: /* Return the byteorder for the machine. | |
2803 | Returns 66 (ASCII uppercase B) for big endian machines or 108 (ASCII | |
2804 | lowercase l) for small endian machines. */) | |
2805 | () | |
2806 | { | |
2807 | unsigned i = 0x04030201; | |
2808 | int order = *(char *)&i == 1 ? 108 : 66; | |
2809 | ||
2810 | return make_number (order); | |
2811 | } | |
2812 | ||
2813 | ||
7921925c JB |
2814 | \f |
2815 | void | |
2816 | syms_of_data () | |
2817 | { | |
6315e761 RS |
2818 | Lisp_Object error_tail, arith_tail; |
2819 | ||
7921925c JB |
2820 | Qquote = intern ("quote"); |
2821 | Qlambda = intern ("lambda"); | |
2822 | Qsubr = intern ("subr"); | |
2823 | Qerror_conditions = intern ("error-conditions"); | |
2824 | Qerror_message = intern ("error-message"); | |
2825 | Qtop_level = intern ("top-level"); | |
2826 | ||
2827 | Qerror = intern ("error"); | |
2828 | Qquit = intern ("quit"); | |
2829 | Qwrong_type_argument = intern ("wrong-type-argument"); | |
2830 | Qargs_out_of_range = intern ("args-out-of-range"); | |
2831 | Qvoid_function = intern ("void-function"); | |
ffd56f97 | 2832 | Qcyclic_function_indirection = intern ("cyclic-function-indirection"); |
f35d5bad | 2833 | Qcyclic_variable_indirection = intern ("cyclic-variable-indirection"); |
7921925c JB |
2834 | Qvoid_variable = intern ("void-variable"); |
2835 | Qsetting_constant = intern ("setting-constant"); | |
2836 | Qinvalid_read_syntax = intern ("invalid-read-syntax"); | |
2837 | ||
2838 | Qinvalid_function = intern ("invalid-function"); | |
2839 | Qwrong_number_of_arguments = intern ("wrong-number-of-arguments"); | |
2840 | Qno_catch = intern ("no-catch"); | |
2841 | Qend_of_file = intern ("end-of-file"); | |
2842 | Qarith_error = intern ("arith-error"); | |
2843 | Qbeginning_of_buffer = intern ("beginning-of-buffer"); | |
2844 | Qend_of_buffer = intern ("end-of-buffer"); | |
2845 | Qbuffer_read_only = intern ("buffer-read-only"); | |
8f9f49d7 | 2846 | Qtext_read_only = intern ("text-read-only"); |
3b8819d6 | 2847 | Qmark_inactive = intern ("mark-inactive"); |
7921925c JB |
2848 | |
2849 | Qlistp = intern ("listp"); | |
2850 | Qconsp = intern ("consp"); | |
2851 | Qsymbolp = intern ("symbolp"); | |
cda9b832 | 2852 | Qkeywordp = intern ("keywordp"); |
7921925c JB |
2853 | Qintegerp = intern ("integerp"); |
2854 | Qnatnump = intern ("natnump"); | |
8e86942b | 2855 | Qwholenump = intern ("wholenump"); |
7921925c JB |
2856 | Qstringp = intern ("stringp"); |
2857 | Qarrayp = intern ("arrayp"); | |
2858 | Qsequencep = intern ("sequencep"); | |
2859 | Qbufferp = intern ("bufferp"); | |
2860 | Qvectorp = intern ("vectorp"); | |
2861 | Qchar_or_string_p = intern ("char-or-string-p"); | |
2862 | Qmarkerp = intern ("markerp"); | |
07bd8472 | 2863 | Qbuffer_or_string_p = intern ("buffer-or-string-p"); |
7921925c JB |
2864 | Qinteger_or_marker_p = intern ("integer-or-marker-p"); |
2865 | Qboundp = intern ("boundp"); | |
2866 | Qfboundp = intern ("fboundp"); | |
2867 | ||
7921925c JB |
2868 | Qfloatp = intern ("floatp"); |
2869 | Qnumberp = intern ("numberp"); | |
2870 | Qnumber_or_marker_p = intern ("number-or-marker-p"); | |
7921925c | 2871 | |
4d276982 | 2872 | Qchar_table_p = intern ("char-table-p"); |
7f0edce7 | 2873 | Qvector_or_char_table_p = intern ("vector-or-char-table-p"); |
4d276982 | 2874 | |
6f0e897f DL |
2875 | Qsubrp = intern ("subrp"); |
2876 | Qunevalled = intern ("unevalled"); | |
2877 | Qmany = intern ("many"); | |
2878 | ||
7921925c JB |
2879 | Qcdr = intern ("cdr"); |
2880 | ||
f845f2c9 | 2881 | /* Handle automatic advice activation */ |
ab297811 | 2882 | Qad_advice_info = intern ("ad-advice-info"); |
c1307a23 | 2883 | Qad_activate_internal = intern ("ad-activate-internal"); |
f845f2c9 | 2884 | |
6315e761 RS |
2885 | error_tail = Fcons (Qerror, Qnil); |
2886 | ||
7921925c JB |
2887 | /* ERROR is used as a signaler for random errors for which nothing else is right */ |
2888 | ||
2889 | Fput (Qerror, Qerror_conditions, | |
6315e761 | 2890 | error_tail); |
7921925c JB |
2891 | Fput (Qerror, Qerror_message, |
2892 | build_string ("error")); | |
2893 | ||
2894 | Fput (Qquit, Qerror_conditions, | |
2895 | Fcons (Qquit, Qnil)); | |
2896 | Fput (Qquit, Qerror_message, | |
2897 | build_string ("Quit")); | |
2898 | ||
2899 | Fput (Qwrong_type_argument, Qerror_conditions, | |
6315e761 | 2900 | Fcons (Qwrong_type_argument, error_tail)); |
7921925c JB |
2901 | Fput (Qwrong_type_argument, Qerror_message, |
2902 | build_string ("Wrong type argument")); | |
2903 | ||
2904 | Fput (Qargs_out_of_range, Qerror_conditions, | |
6315e761 | 2905 | Fcons (Qargs_out_of_range, error_tail)); |
7921925c JB |
2906 | Fput (Qargs_out_of_range, Qerror_message, |
2907 | build_string ("Args out of range")); | |
2908 | ||
2909 | Fput (Qvoid_function, Qerror_conditions, | |
6315e761 | 2910 | Fcons (Qvoid_function, error_tail)); |
7921925c JB |
2911 | Fput (Qvoid_function, Qerror_message, |
2912 | build_string ("Symbol's function definition is void")); | |
2913 | ||
ffd56f97 | 2914 | Fput (Qcyclic_function_indirection, Qerror_conditions, |
6315e761 | 2915 | Fcons (Qcyclic_function_indirection, error_tail)); |
ffd56f97 JB |
2916 | Fput (Qcyclic_function_indirection, Qerror_message, |
2917 | build_string ("Symbol's chain of function indirections contains a loop")); | |
2918 | ||
f35d5bad GM |
2919 | Fput (Qcyclic_variable_indirection, Qerror_conditions, |
2920 | Fcons (Qcyclic_variable_indirection, error_tail)); | |
2921 | Fput (Qcyclic_variable_indirection, Qerror_message, | |
2922 | build_string ("Symbol's chain of variable indirections contains a loop")); | |
2923 | ||
13d95cc0 GM |
2924 | Qcircular_list = intern ("circular-list"); |
2925 | staticpro (&Qcircular_list); | |
2926 | Fput (Qcircular_list, Qerror_conditions, | |
2927 | Fcons (Qcircular_list, error_tail)); | |
2928 | Fput (Qcircular_list, Qerror_message, | |
2929 | build_string ("List contains a loop")); | |
2930 | ||
7921925c | 2931 | Fput (Qvoid_variable, Qerror_conditions, |
6315e761 | 2932 | Fcons (Qvoid_variable, error_tail)); |
7921925c JB |
2933 | Fput (Qvoid_variable, Qerror_message, |
2934 | build_string ("Symbol's value as variable is void")); | |
2935 | ||
2936 | Fput (Qsetting_constant, Qerror_conditions, | |
6315e761 | 2937 | Fcons (Qsetting_constant, error_tail)); |
7921925c JB |
2938 | Fput (Qsetting_constant, Qerror_message, |
2939 | build_string ("Attempt to set a constant symbol")); | |
2940 | ||
2941 | Fput (Qinvalid_read_syntax, Qerror_conditions, | |
6315e761 | 2942 | Fcons (Qinvalid_read_syntax, error_tail)); |
7921925c JB |
2943 | Fput (Qinvalid_read_syntax, Qerror_message, |
2944 | build_string ("Invalid read syntax")); | |
2945 | ||
2946 | Fput (Qinvalid_function, Qerror_conditions, | |
6315e761 | 2947 | Fcons (Qinvalid_function, error_tail)); |
7921925c JB |
2948 | Fput (Qinvalid_function, Qerror_message, |
2949 | build_string ("Invalid function")); | |
2950 | ||
2951 | Fput (Qwrong_number_of_arguments, Qerror_conditions, | |
6315e761 | 2952 | Fcons (Qwrong_number_of_arguments, error_tail)); |
7921925c JB |
2953 | Fput (Qwrong_number_of_arguments, Qerror_message, |
2954 | build_string ("Wrong number of arguments")); | |
2955 | ||
2956 | Fput (Qno_catch, Qerror_conditions, | |
6315e761 | 2957 | Fcons (Qno_catch, error_tail)); |
7921925c JB |
2958 | Fput (Qno_catch, Qerror_message, |
2959 | build_string ("No catch for tag")); | |
2960 | ||
2961 | Fput (Qend_of_file, Qerror_conditions, | |
6315e761 | 2962 | Fcons (Qend_of_file, error_tail)); |
7921925c JB |
2963 | Fput (Qend_of_file, Qerror_message, |
2964 | build_string ("End of file during parsing")); | |
2965 | ||
6315e761 | 2966 | arith_tail = Fcons (Qarith_error, error_tail); |
7921925c | 2967 | Fput (Qarith_error, Qerror_conditions, |
6315e761 | 2968 | arith_tail); |
7921925c JB |
2969 | Fput (Qarith_error, Qerror_message, |
2970 | build_string ("Arithmetic error")); | |
2971 | ||
2972 | Fput (Qbeginning_of_buffer, Qerror_conditions, | |
6315e761 | 2973 | Fcons (Qbeginning_of_buffer, error_tail)); |
7921925c JB |
2974 | Fput (Qbeginning_of_buffer, Qerror_message, |
2975 | build_string ("Beginning of buffer")); | |
2976 | ||
2977 | Fput (Qend_of_buffer, Qerror_conditions, | |
6315e761 | 2978 | Fcons (Qend_of_buffer, error_tail)); |
7921925c JB |
2979 | Fput (Qend_of_buffer, Qerror_message, |
2980 | build_string ("End of buffer")); | |
2981 | ||
2982 | Fput (Qbuffer_read_only, Qerror_conditions, | |
6315e761 | 2983 | Fcons (Qbuffer_read_only, error_tail)); |
7921925c JB |
2984 | Fput (Qbuffer_read_only, Qerror_message, |
2985 | build_string ("Buffer is read-only")); | |
2986 | ||
8f9f49d7 GM |
2987 | Fput (Qtext_read_only, Qerror_conditions, |
2988 | Fcons (Qtext_read_only, error_tail)); | |
2989 | Fput (Qtext_read_only, Qerror_message, | |
2990 | build_string ("Text is read-only")); | |
2991 | ||
6315e761 RS |
2992 | Qrange_error = intern ("range-error"); |
2993 | Qdomain_error = intern ("domain-error"); | |
2994 | Qsingularity_error = intern ("singularity-error"); | |
2995 | Qoverflow_error = intern ("overflow-error"); | |
2996 | Qunderflow_error = intern ("underflow-error"); | |
2997 | ||
2998 | Fput (Qdomain_error, Qerror_conditions, | |
2999 | Fcons (Qdomain_error, arith_tail)); | |
3000 | Fput (Qdomain_error, Qerror_message, | |
3001 | build_string ("Arithmetic domain error")); | |
3002 | ||
3003 | Fput (Qrange_error, Qerror_conditions, | |
3004 | Fcons (Qrange_error, arith_tail)); | |
3005 | Fput (Qrange_error, Qerror_message, | |
3006 | build_string ("Arithmetic range error")); | |
3007 | ||
3008 | Fput (Qsingularity_error, Qerror_conditions, | |
3009 | Fcons (Qsingularity_error, Fcons (Qdomain_error, arith_tail))); | |
3010 | Fput (Qsingularity_error, Qerror_message, | |
3011 | build_string ("Arithmetic singularity error")); | |
3012 | ||
3013 | Fput (Qoverflow_error, Qerror_conditions, | |
3014 | Fcons (Qoverflow_error, Fcons (Qdomain_error, arith_tail))); | |
3015 | Fput (Qoverflow_error, Qerror_message, | |
3016 | build_string ("Arithmetic overflow error")); | |
3017 | ||
3018 | Fput (Qunderflow_error, Qerror_conditions, | |
3019 | Fcons (Qunderflow_error, Fcons (Qdomain_error, arith_tail))); | |
3020 | Fput (Qunderflow_error, Qerror_message, | |
3021 | build_string ("Arithmetic underflow error")); | |
3022 | ||
3023 | staticpro (&Qrange_error); | |
3024 | staticpro (&Qdomain_error); | |
3025 | staticpro (&Qsingularity_error); | |
3026 | staticpro (&Qoverflow_error); | |
3027 | staticpro (&Qunderflow_error); | |
6315e761 | 3028 | |
7921925c JB |
3029 | staticpro (&Qnil); |
3030 | staticpro (&Qt); | |
3031 | staticpro (&Qquote); | |
3032 | staticpro (&Qlambda); | |
3033 | staticpro (&Qsubr); | |
3034 | staticpro (&Qunbound); | |
3035 | staticpro (&Qerror_conditions); | |
3036 | staticpro (&Qerror_message); | |
3037 | staticpro (&Qtop_level); | |
3038 | ||
3039 | staticpro (&Qerror); | |
3040 | staticpro (&Qquit); | |
3041 | staticpro (&Qwrong_type_argument); | |
3042 | staticpro (&Qargs_out_of_range); | |
3043 | staticpro (&Qvoid_function); | |
ffd56f97 | 3044 | staticpro (&Qcyclic_function_indirection); |
7921925c JB |
3045 | staticpro (&Qvoid_variable); |
3046 | staticpro (&Qsetting_constant); | |
3047 | staticpro (&Qinvalid_read_syntax); | |
3048 | staticpro (&Qwrong_number_of_arguments); | |
3049 | staticpro (&Qinvalid_function); | |
3050 | staticpro (&Qno_catch); | |
3051 | staticpro (&Qend_of_file); | |
3052 | staticpro (&Qarith_error); | |
3053 | staticpro (&Qbeginning_of_buffer); | |
3054 | staticpro (&Qend_of_buffer); | |
3055 | staticpro (&Qbuffer_read_only); | |
8f9f49d7 | 3056 | staticpro (&Qtext_read_only); |
638b77e6 | 3057 | staticpro (&Qmark_inactive); |
7921925c JB |
3058 | |
3059 | staticpro (&Qlistp); | |
3060 | staticpro (&Qconsp); | |
3061 | staticpro (&Qsymbolp); | |
cda9b832 | 3062 | staticpro (&Qkeywordp); |
7921925c JB |
3063 | staticpro (&Qintegerp); |
3064 | staticpro (&Qnatnump); | |
8e86942b | 3065 | staticpro (&Qwholenump); |
7921925c JB |
3066 | staticpro (&Qstringp); |
3067 | staticpro (&Qarrayp); | |
3068 | staticpro (&Qsequencep); | |
3069 | staticpro (&Qbufferp); | |
3070 | staticpro (&Qvectorp); | |
3071 | staticpro (&Qchar_or_string_p); | |
3072 | staticpro (&Qmarkerp); | |
07bd8472 | 3073 | staticpro (&Qbuffer_or_string_p); |
7921925c | 3074 | staticpro (&Qinteger_or_marker_p); |
7921925c | 3075 | staticpro (&Qfloatp); |
464f8898 RS |
3076 | staticpro (&Qnumberp); |
3077 | staticpro (&Qnumber_or_marker_p); | |
4d276982 | 3078 | staticpro (&Qchar_table_p); |
7f0edce7 | 3079 | staticpro (&Qvector_or_char_table_p); |
6f0e897f DL |
3080 | staticpro (&Qsubrp); |
3081 | staticpro (&Qmany); | |
3082 | staticpro (&Qunevalled); | |
7921925c JB |
3083 | |
3084 | staticpro (&Qboundp); | |
3085 | staticpro (&Qfboundp); | |
3086 | staticpro (&Qcdr); | |
ab297811 | 3087 | staticpro (&Qad_advice_info); |
c1307a23 | 3088 | staticpro (&Qad_activate_internal); |
7921925c | 3089 | |
39bcc759 RS |
3090 | /* Types that type-of returns. */ |
3091 | Qinteger = intern ("integer"); | |
3092 | Qsymbol = intern ("symbol"); | |
3093 | Qstring = intern ("string"); | |
3094 | Qcons = intern ("cons"); | |
3095 | Qmarker = intern ("marker"); | |
3096 | Qoverlay = intern ("overlay"); | |
3097 | Qfloat = intern ("float"); | |
3098 | Qwindow_configuration = intern ("window-configuration"); | |
3099 | Qprocess = intern ("process"); | |
3100 | Qwindow = intern ("window"); | |
3101 | /* Qsubr = intern ("subr"); */ | |
3102 | Qcompiled_function = intern ("compiled-function"); | |
3103 | Qbuffer = intern ("buffer"); | |
3104 | Qframe = intern ("frame"); | |
3105 | Qvector = intern ("vector"); | |
fc67d5be KH |
3106 | Qchar_table = intern ("char-table"); |
3107 | Qbool_vector = intern ("bool-vector"); | |
81dc5de5 | 3108 | Qhash_table = intern ("hash-table"); |
39bcc759 RS |
3109 | |
3110 | staticpro (&Qinteger); | |
3111 | staticpro (&Qsymbol); | |
3112 | staticpro (&Qstring); | |
3113 | staticpro (&Qcons); | |
3114 | staticpro (&Qmarker); | |
3115 | staticpro (&Qoverlay); | |
3116 | staticpro (&Qfloat); | |
3117 | staticpro (&Qwindow_configuration); | |
3118 | staticpro (&Qprocess); | |
3119 | staticpro (&Qwindow); | |
3120 | /* staticpro (&Qsubr); */ | |
3121 | staticpro (&Qcompiled_function); | |
3122 | staticpro (&Qbuffer); | |
3123 | staticpro (&Qframe); | |
3124 | staticpro (&Qvector); | |
fc67d5be KH |
3125 | staticpro (&Qchar_table); |
3126 | staticpro (&Qbool_vector); | |
81dc5de5 | 3127 | staticpro (&Qhash_table); |
39bcc759 | 3128 | |
f35d5bad | 3129 | defsubr (&Sindirect_variable); |
6b61353c | 3130 | defsubr (&Sinteractive_form); |
7921925c JB |
3131 | defsubr (&Seq); |
3132 | defsubr (&Snull); | |
39bcc759 | 3133 | defsubr (&Stype_of); |
7921925c JB |
3134 | defsubr (&Slistp); |
3135 | defsubr (&Snlistp); | |
3136 | defsubr (&Sconsp); | |
3137 | defsubr (&Satom); | |
3138 | defsubr (&Sintegerp); | |
464f8898 | 3139 | defsubr (&Sinteger_or_marker_p); |
7921925c JB |
3140 | defsubr (&Snumberp); |
3141 | defsubr (&Snumber_or_marker_p); | |
464f8898 | 3142 | defsubr (&Sfloatp); |
7921925c JB |
3143 | defsubr (&Snatnump); |
3144 | defsubr (&Ssymbolp); | |
cda9b832 | 3145 | defsubr (&Skeywordp); |
7921925c | 3146 | defsubr (&Sstringp); |
0f56470d | 3147 | defsubr (&Smultibyte_string_p); |
7921925c | 3148 | defsubr (&Svectorp); |
4d276982 | 3149 | defsubr (&Schar_table_p); |
7f0edce7 | 3150 | defsubr (&Svector_or_char_table_p); |
4d276982 | 3151 | defsubr (&Sbool_vector_p); |
7921925c JB |
3152 | defsubr (&Sarrayp); |
3153 | defsubr (&Ssequencep); | |
3154 | defsubr (&Sbufferp); | |
3155 | defsubr (&Smarkerp); | |
7921925c | 3156 | defsubr (&Ssubrp); |
dbc4e1c1 | 3157 | defsubr (&Sbyte_code_function_p); |
7921925c JB |
3158 | defsubr (&Schar_or_string_p); |
3159 | defsubr (&Scar); | |
3160 | defsubr (&Scdr); | |
3161 | defsubr (&Scar_safe); | |
3162 | defsubr (&Scdr_safe); | |
3163 | defsubr (&Ssetcar); | |
3164 | defsubr (&Ssetcdr); | |
3165 | defsubr (&Ssymbol_function); | |
ffd56f97 | 3166 | defsubr (&Sindirect_function); |
7921925c JB |
3167 | defsubr (&Ssymbol_plist); |
3168 | defsubr (&Ssymbol_name); | |
3169 | defsubr (&Smakunbound); | |
3170 | defsubr (&Sfmakunbound); | |
3171 | defsubr (&Sboundp); | |
3172 | defsubr (&Sfboundp); | |
3173 | defsubr (&Sfset); | |
80df38a2 | 3174 | defsubr (&Sdefalias); |
7921925c JB |
3175 | defsubr (&Ssetplist); |
3176 | defsubr (&Ssymbol_value); | |
3177 | defsubr (&Sset); | |
3178 | defsubr (&Sdefault_boundp); | |
3179 | defsubr (&Sdefault_value); | |
3180 | defsubr (&Sset_default); | |
3181 | defsubr (&Ssetq_default); | |
3182 | defsubr (&Smake_variable_buffer_local); | |
3183 | defsubr (&Smake_local_variable); | |
3184 | defsubr (&Skill_local_variable); | |
b0c2d1c6 | 3185 | defsubr (&Smake_variable_frame_local); |
62476adc | 3186 | defsubr (&Slocal_variable_p); |
f4f04cee | 3187 | defsubr (&Slocal_variable_if_set_p); |
6b61353c | 3188 | defsubr (&Svariable_binding_locus); |
7921925c JB |
3189 | defsubr (&Saref); |
3190 | defsubr (&Saset); | |
f2980264 | 3191 | defsubr (&Snumber_to_string); |
25e40a4b | 3192 | defsubr (&Sstring_to_number); |
7921925c JB |
3193 | defsubr (&Seqlsign); |
3194 | defsubr (&Slss); | |
3195 | defsubr (&Sgtr); | |
3196 | defsubr (&Sleq); | |
3197 | defsubr (&Sgeq); | |
3198 | defsubr (&Sneq); | |
3199 | defsubr (&Szerop); | |
3200 | defsubr (&Splus); | |
3201 | defsubr (&Sminus); | |
3202 | defsubr (&Stimes); | |
3203 | defsubr (&Squo); | |
3204 | defsubr (&Srem); | |
44fa9da5 | 3205 | defsubr (&Smod); |
7921925c JB |
3206 | defsubr (&Smax); |
3207 | defsubr (&Smin); | |
3208 | defsubr (&Slogand); | |
3209 | defsubr (&Slogior); | |
3210 | defsubr (&Slogxor); | |
3211 | defsubr (&Slsh); | |
3212 | defsubr (&Sash); | |
3213 | defsubr (&Sadd1); | |
3214 | defsubr (&Ssub1); | |
3215 | defsubr (&Slognot); | |
6b61353c | 3216 | defsubr (&Sbyteorder); |
6f0e897f | 3217 | defsubr (&Ssubr_arity); |
8e86942b | 3218 | |
c80bd143 | 3219 | XSYMBOL (Qwholenump)->function = XSYMBOL (Qnatnump)->function; |
e6190b11 | 3220 | |
9d113d9d AS |
3221 | DEFVAR_LISP ("most-positive-fixnum", &Vmost_positive_fixnum, |
3222 | doc: /* The largest value that is representable in a Lisp integer. */); | |
3223 | Vmost_positive_fixnum = make_number (MOST_POSITIVE_FIXNUM); | |
bfb96cb7 | 3224 | |
9d113d9d AS |
3225 | DEFVAR_LISP ("most-negative-fixnum", &Vmost_negative_fixnum, |
3226 | doc: /* The smallest value that is representable in a Lisp integer. */); | |
3227 | Vmost_negative_fixnum = make_number (MOST_NEGATIVE_FIXNUM); | |
7921925c JB |
3228 | } |
3229 | ||
a33ef3ab | 3230 | SIGTYPE |
7921925c JB |
3231 | arith_error (signo) |
3232 | int signo; | |
3233 | { | |
fe42a920 | 3234 | #if defined(USG) && !defined(POSIX_SIGNALS) |
7921925c JB |
3235 | /* USG systems forget handlers when they are used; |
3236 | must reestablish each time */ | |
3237 | signal (signo, arith_error); | |
3238 | #endif /* USG */ | |
3239 | #ifdef VMS | |
3240 | /* VMS systems are like USG. */ | |
3241 | signal (signo, arith_error); | |
3242 | #endif /* VMS */ | |
3243 | #ifdef BSD4_1 | |
3244 | sigrelse (SIGFPE); | |
3245 | #else /* not BSD4_1 */ | |
e065a56e | 3246 | sigsetmask (SIGEMPTYMASK); |
7921925c JB |
3247 | #endif /* not BSD4_1 */ |
3248 | ||
3249 | Fsignal (Qarith_error, Qnil); | |
3250 | } | |
3251 | ||
dfcf069d | 3252 | void |
7921925c JB |
3253 | init_data () |
3254 | { | |
3255 | /* Don't do this if just dumping out. | |
3256 | We don't want to call `signal' in this case | |
3257 | so that we don't have trouble with dumping | |
3258 | signal-delivering routines in an inconsistent state. */ | |
3259 | #ifndef CANNOT_DUMP | |
3260 | if (!initialized) | |
3261 | return; | |
3262 | #endif /* CANNOT_DUMP */ | |
3263 | signal (SIGFPE, arith_error); | |
7403b5c8 | 3264 | |
7921925c JB |
3265 | #ifdef uts |
3266 | signal (SIGEMT, arith_error); | |
3267 | #endif /* uts */ | |
3268 | } | |
6b61353c KH |
3269 | |
3270 | /* arch-tag: 25879798-b84d-479a-9c89-7d148e2109f7 | |
3271 | (do not change this comment) */ |