Commit | Line | Data |
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7921925c | 1 | /* Primitive operations on Lisp data types for GNU Emacs Lisp interpreter. |
0b5538bd | 2 | Copyright (C) 1985, 1986, 1988, 1993, 1994, 1995, 1997, 1998, 1999, 2000, |
4e6835db | 3 | 2001, 2002, 2003, 2004, 2005, 2006, 2007 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 | |
4fc5845f LK |
19 | the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, |
20 | Boston, MA 02110-1301, 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 | { | |
740ef0b5 | 108 | xsignal (Qcircular_list, list); |
13d95cc0 GM |
109 | } |
110 | ||
111 | ||
7921925c JB |
112 | Lisp_Object |
113 | wrong_type_argument (predicate, value) | |
114 | register Lisp_Object predicate, value; | |
115 | { | |
0c64a8cd KS |
116 | /* If VALUE is not even a valid Lisp object, abort here |
117 | where we can get a backtrace showing where it came from. */ | |
118 | if ((unsigned int) XGCTYPE (value) >= Lisp_Type_Limit) | |
119 | abort (); | |
e1351ff7 | 120 | |
740ef0b5 | 121 | xsignal2 (Qwrong_type_argument, predicate, value); |
7921925c JB |
122 | } |
123 | ||
dfcf069d | 124 | void |
7921925c JB |
125 | pure_write_error () |
126 | { | |
127 | error ("Attempt to modify read-only object"); | |
128 | } | |
129 | ||
130 | void | |
131 | args_out_of_range (a1, a2) | |
132 | Lisp_Object a1, a2; | |
133 | { | |
740ef0b5 | 134 | xsignal2 (Qargs_out_of_range, a1, a2); |
7921925c JB |
135 | } |
136 | ||
137 | void | |
138 | args_out_of_range_3 (a1, a2, a3) | |
139 | Lisp_Object a1, a2, a3; | |
140 | { | |
740ef0b5 | 141 | xsignal3 (Qargs_out_of_range, a1, a2, a3); |
7921925c JB |
142 | } |
143 | ||
7921925c JB |
144 | /* On some machines, XINT needs a temporary location. |
145 | Here it is, in case it is needed. */ | |
146 | ||
147 | int sign_extend_temp; | |
148 | ||
149 | /* On a few machines, XINT can only be done by calling this. */ | |
150 | ||
151 | int | |
152 | sign_extend_lisp_int (num) | |
a0ed95ea | 153 | EMACS_INT num; |
7921925c | 154 | { |
a0ed95ea RS |
155 | if (num & (((EMACS_INT) 1) << (VALBITS - 1))) |
156 | return num | (((EMACS_INT) (-1)) << VALBITS); | |
7921925c | 157 | else |
a0ed95ea | 158 | return num & ((((EMACS_INT) 1) << VALBITS) - 1); |
7921925c JB |
159 | } |
160 | \f | |
161 | /* Data type predicates */ | |
162 | ||
163 | DEFUN ("eq", Feq, Seq, 2, 2, 0, | |
8c1a1077 PJ |
164 | doc: /* Return t if the two args are the same Lisp object. */) |
165 | (obj1, obj2) | |
7921925c JB |
166 | Lisp_Object obj1, obj2; |
167 | { | |
168 | if (EQ (obj1, obj2)) | |
169 | return Qt; | |
170 | return Qnil; | |
171 | } | |
172 | ||
8c1a1077 PJ |
173 | DEFUN ("null", Fnull, Snull, 1, 1, 0, |
174 | doc: /* Return t if OBJECT is nil. */) | |
175 | (object) | |
39bcc759 | 176 | Lisp_Object object; |
7921925c | 177 | { |
39bcc759 | 178 | if (NILP (object)) |
7921925c JB |
179 | return Qt; |
180 | return Qnil; | |
181 | } | |
182 | ||
39bcc759 | 183 | DEFUN ("type-of", Ftype_of, Stype_of, 1, 1, 0, |
8c1a1077 PJ |
184 | doc: /* Return a symbol representing the type of OBJECT. |
185 | The symbol returned names the object's basic type; | |
186 | for example, (type-of 1) returns `integer'. */) | |
187 | (object) | |
39bcc759 RS |
188 | Lisp_Object object; |
189 | { | |
190 | switch (XGCTYPE (object)) | |
191 | { | |
192 | case Lisp_Int: | |
193 | return Qinteger; | |
194 | ||
195 | case Lisp_Symbol: | |
196 | return Qsymbol; | |
197 | ||
198 | case Lisp_String: | |
199 | return Qstring; | |
200 | ||
201 | case Lisp_Cons: | |
202 | return Qcons; | |
203 | ||
204 | case Lisp_Misc: | |
324a6eef | 205 | switch (XMISCTYPE (object)) |
39bcc759 RS |
206 | { |
207 | case Lisp_Misc_Marker: | |
208 | return Qmarker; | |
209 | case Lisp_Misc_Overlay: | |
210 | return Qoverlay; | |
211 | case Lisp_Misc_Float: | |
212 | return Qfloat; | |
213 | } | |
214 | abort (); | |
215 | ||
216 | case Lisp_Vectorlike: | |
217 | if (GC_WINDOW_CONFIGURATIONP (object)) | |
218 | return Qwindow_configuration; | |
219 | if (GC_PROCESSP (object)) | |
220 | return Qprocess; | |
221 | if (GC_WINDOWP (object)) | |
222 | return Qwindow; | |
223 | if (GC_SUBRP (object)) | |
224 | return Qsubr; | |
225 | if (GC_COMPILEDP (object)) | |
226 | return Qcompiled_function; | |
227 | if (GC_BUFFERP (object)) | |
228 | return Qbuffer; | |
fc67d5be KH |
229 | if (GC_CHAR_TABLE_P (object)) |
230 | return Qchar_table; | |
231 | if (GC_BOOL_VECTOR_P (object)) | |
232 | return Qbool_vector; | |
39bcc759 RS |
233 | if (GC_FRAMEP (object)) |
234 | return Qframe; | |
81dc5de5 GM |
235 | if (GC_HASH_TABLE_P (object)) |
236 | return Qhash_table; | |
39bcc759 RS |
237 | return Qvector; |
238 | ||
39bcc759 RS |
239 | case Lisp_Float: |
240 | return Qfloat; | |
39bcc759 RS |
241 | |
242 | default: | |
243 | abort (); | |
244 | } | |
245 | } | |
246 | ||
8c1a1077 PJ |
247 | DEFUN ("consp", Fconsp, Sconsp, 1, 1, 0, |
248 | doc: /* Return t if OBJECT is a cons cell. */) | |
249 | (object) | |
39bcc759 | 250 | Lisp_Object object; |
7921925c | 251 | { |
39bcc759 | 252 | if (CONSP (object)) |
7921925c JB |
253 | return Qt; |
254 | return Qnil; | |
255 | } | |
256 | ||
25638b07 | 257 | DEFUN ("atom", Fatom, Satom, 1, 1, 0, |
8c1a1077 PJ |
258 | doc: /* Return t if OBJECT is not a cons cell. This includes nil. */) |
259 | (object) | |
39bcc759 | 260 | Lisp_Object object; |
7921925c | 261 | { |
39bcc759 | 262 | if (CONSP (object)) |
7921925c JB |
263 | return Qnil; |
264 | return Qt; | |
265 | } | |
266 | ||
25638b07 | 267 | DEFUN ("listp", Flistp, Slistp, 1, 1, 0, |
4cdcdcc9 LT |
268 | doc: /* Return t if OBJECT is a list, that is, a cons cell or nil. |
269 | Otherwise, return nil. */) | |
8c1a1077 | 270 | (object) |
39bcc759 | 271 | Lisp_Object object; |
7921925c | 272 | { |
39bcc759 | 273 | if (CONSP (object) || NILP (object)) |
7921925c JB |
274 | return Qt; |
275 | return Qnil; | |
276 | } | |
277 | ||
25638b07 | 278 | DEFUN ("nlistp", Fnlistp, Snlistp, 1, 1, 0, |
8c1a1077 PJ |
279 | doc: /* Return t if OBJECT is not a list. Lists include nil. */) |
280 | (object) | |
39bcc759 | 281 | Lisp_Object object; |
7921925c | 282 | { |
39bcc759 | 283 | if (CONSP (object) || NILP (object)) |
7921925c JB |
284 | return Qnil; |
285 | return Qt; | |
286 | } | |
287 | \f | |
25638b07 | 288 | DEFUN ("symbolp", Fsymbolp, Ssymbolp, 1, 1, 0, |
8c1a1077 PJ |
289 | doc: /* Return t if OBJECT is a symbol. */) |
290 | (object) | |
39bcc759 | 291 | Lisp_Object object; |
7921925c | 292 | { |
39bcc759 | 293 | if (SYMBOLP (object)) |
7921925c JB |
294 | return Qt; |
295 | return Qnil; | |
296 | } | |
297 | ||
cda9b832 DL |
298 | /* Define this in C to avoid unnecessarily consing up the symbol |
299 | name. */ | |
300 | DEFUN ("keywordp", Fkeywordp, Skeywordp, 1, 1, 0, | |
8c1a1077 PJ |
301 | doc: /* Return t if OBJECT is a keyword. |
302 | This means that it is a symbol with a print name beginning with `:' | |
303 | interned in the initial obarray. */) | |
304 | (object) | |
cda9b832 DL |
305 | Lisp_Object object; |
306 | { | |
307 | if (SYMBOLP (object) | |
d5db4077 | 308 | && SREF (SYMBOL_NAME (object), 0) == ':' |
f35d5bad | 309 | && SYMBOL_INTERNED_IN_INITIAL_OBARRAY_P (object)) |
cda9b832 DL |
310 | return Qt; |
311 | return Qnil; | |
312 | } | |
313 | ||
25638b07 | 314 | DEFUN ("vectorp", Fvectorp, Svectorp, 1, 1, 0, |
8c1a1077 PJ |
315 | doc: /* Return t if OBJECT is a vector. */) |
316 | (object) | |
39bcc759 | 317 | Lisp_Object object; |
7921925c | 318 | { |
39bcc759 | 319 | if (VECTORP (object)) |
7921925c JB |
320 | return Qt; |
321 | return Qnil; | |
322 | } | |
323 | ||
25638b07 | 324 | DEFUN ("stringp", Fstringp, Sstringp, 1, 1, 0, |
8c1a1077 PJ |
325 | doc: /* Return t if OBJECT is a string. */) |
326 | (object) | |
39bcc759 | 327 | Lisp_Object object; |
7921925c | 328 | { |
39bcc759 | 329 | if (STRINGP (object)) |
7921925c JB |
330 | return Qt; |
331 | return Qnil; | |
332 | } | |
333 | ||
25638b07 | 334 | DEFUN ("multibyte-string-p", Fmultibyte_string_p, Smultibyte_string_p, |
8c1a1077 PJ |
335 | 1, 1, 0, |
336 | doc: /* Return t if OBJECT is a multibyte string. */) | |
337 | (object) | |
25638b07 RS |
338 | Lisp_Object object; |
339 | { | |
340 | if (STRINGP (object) && STRING_MULTIBYTE (object)) | |
341 | return Qt; | |
342 | return Qnil; | |
343 | } | |
344 | ||
345 | DEFUN ("char-table-p", Fchar_table_p, Schar_table_p, 1, 1, 0, | |
8c1a1077 PJ |
346 | doc: /* Return t if OBJECT is a char-table. */) |
347 | (object) | |
4d276982 RS |
348 | Lisp_Object object; |
349 | { | |
350 | if (CHAR_TABLE_P (object)) | |
351 | return Qt; | |
352 | return Qnil; | |
353 | } | |
354 | ||
7f0edce7 RS |
355 | DEFUN ("vector-or-char-table-p", Fvector_or_char_table_p, |
356 | Svector_or_char_table_p, 1, 1, 0, | |
8c1a1077 PJ |
357 | doc: /* Return t if OBJECT is a char-table or vector. */) |
358 | (object) | |
7f0edce7 RS |
359 | Lisp_Object object; |
360 | { | |
361 | if (VECTORP (object) || CHAR_TABLE_P (object)) | |
362 | return Qt; | |
363 | return Qnil; | |
364 | } | |
365 | ||
8c1a1077 PJ |
366 | DEFUN ("bool-vector-p", Fbool_vector_p, Sbool_vector_p, 1, 1, 0, |
367 | doc: /* Return t if OBJECT is a bool-vector. */) | |
368 | (object) | |
4d276982 RS |
369 | Lisp_Object object; |
370 | { | |
371 | if (BOOL_VECTOR_P (object)) | |
372 | return Qt; | |
373 | return Qnil; | |
374 | } | |
375 | ||
8c1a1077 PJ |
376 | DEFUN ("arrayp", Farrayp, Sarrayp, 1, 1, 0, |
377 | doc: /* Return t if OBJECT is an array (string or vector). */) | |
378 | (object) | |
39bcc759 | 379 | Lisp_Object object; |
7921925c | 380 | { |
0c64a8cd | 381 | if (ARRAYP (object)) |
7921925c JB |
382 | return Qt; |
383 | return Qnil; | |
384 | } | |
385 | ||
386 | DEFUN ("sequencep", Fsequencep, Ssequencep, 1, 1, 0, | |
8c1a1077 PJ |
387 | doc: /* Return t if OBJECT is a sequence (list or array). */) |
388 | (object) | |
39bcc759 | 389 | register Lisp_Object object; |
7921925c | 390 | { |
0c64a8cd | 391 | if (CONSP (object) || NILP (object) || ARRAYP (object)) |
7921925c JB |
392 | return Qt; |
393 | return Qnil; | |
394 | } | |
395 | ||
8c1a1077 PJ |
396 | DEFUN ("bufferp", Fbufferp, Sbufferp, 1, 1, 0, |
397 | doc: /* Return t if OBJECT is an editor buffer. */) | |
398 | (object) | |
39bcc759 | 399 | Lisp_Object object; |
7921925c | 400 | { |
39bcc759 | 401 | if (BUFFERP (object)) |
7921925c JB |
402 | return Qt; |
403 | return Qnil; | |
404 | } | |
405 | ||
8c1a1077 PJ |
406 | DEFUN ("markerp", Fmarkerp, Smarkerp, 1, 1, 0, |
407 | doc: /* Return t if OBJECT is a marker (editor pointer). */) | |
408 | (object) | |
39bcc759 | 409 | Lisp_Object object; |
7921925c | 410 | { |
39bcc759 | 411 | if (MARKERP (object)) |
7921925c JB |
412 | return Qt; |
413 | return Qnil; | |
414 | } | |
415 | ||
8c1a1077 PJ |
416 | DEFUN ("subrp", Fsubrp, Ssubrp, 1, 1, 0, |
417 | doc: /* Return t if OBJECT is a built-in function. */) | |
418 | (object) | |
39bcc759 | 419 | Lisp_Object object; |
7921925c | 420 | { |
39bcc759 | 421 | if (SUBRP (object)) |
7921925c JB |
422 | return Qt; |
423 | return Qnil; | |
424 | } | |
425 | ||
dbc4e1c1 | 426 | DEFUN ("byte-code-function-p", Fbyte_code_function_p, Sbyte_code_function_p, |
8c1a1077 PJ |
427 | 1, 1, 0, |
428 | doc: /* Return t if OBJECT is a byte-compiled function object. */) | |
429 | (object) | |
39bcc759 | 430 | Lisp_Object object; |
7921925c | 431 | { |
39bcc759 | 432 | if (COMPILEDP (object)) |
7921925c JB |
433 | return Qt; |
434 | return Qnil; | |
435 | } | |
436 | ||
0321d75c | 437 | DEFUN ("char-or-string-p", Fchar_or_string_p, Schar_or_string_p, 1, 1, 0, |
8c1a1077 PJ |
438 | doc: /* Return t if OBJECT is a character (an integer) or a string. */) |
439 | (object) | |
39bcc759 | 440 | register Lisp_Object object; |
7921925c | 441 | { |
cfd70f33 | 442 | if (CHARACTERP (object) || STRINGP (object)) |
7921925c JB |
443 | return Qt; |
444 | return Qnil; | |
445 | } | |
446 | \f | |
8c1a1077 PJ |
447 | DEFUN ("integerp", Fintegerp, Sintegerp, 1, 1, 0, |
448 | doc: /* Return t if OBJECT is an integer. */) | |
449 | (object) | |
39bcc759 | 450 | Lisp_Object object; |
7921925c | 451 | { |
39bcc759 | 452 | if (INTEGERP (object)) |
7921925c JB |
453 | return Qt; |
454 | return Qnil; | |
455 | } | |
456 | ||
464f8898 | 457 | DEFUN ("integer-or-marker-p", Finteger_or_marker_p, Sinteger_or_marker_p, 1, 1, 0, |
8c1a1077 PJ |
458 | doc: /* Return t if OBJECT is an integer or a marker (editor pointer). */) |
459 | (object) | |
39bcc759 | 460 | register Lisp_Object object; |
7921925c | 461 | { |
39bcc759 | 462 | if (MARKERP (object) || INTEGERP (object)) |
7921925c JB |
463 | return Qt; |
464 | return Qnil; | |
465 | } | |
466 | ||
0321d75c | 467 | DEFUN ("natnump", Fnatnump, Snatnump, 1, 1, 0, |
8c1a1077 PJ |
468 | doc: /* Return t if OBJECT is a nonnegative integer. */) |
469 | (object) | |
39bcc759 | 470 | Lisp_Object object; |
7921925c | 471 | { |
39bcc759 | 472 | if (NATNUMP (object)) |
7921925c JB |
473 | return Qt; |
474 | return Qnil; | |
475 | } | |
476 | ||
477 | DEFUN ("numberp", Fnumberp, Snumberp, 1, 1, 0, | |
8c1a1077 PJ |
478 | doc: /* Return t if OBJECT is a number (floating point or integer). */) |
479 | (object) | |
39bcc759 | 480 | Lisp_Object object; |
7921925c | 481 | { |
39bcc759 | 482 | if (NUMBERP (object)) |
7921925c | 483 | return Qt; |
dbc4e1c1 JB |
484 | else |
485 | return Qnil; | |
7921925c JB |
486 | } |
487 | ||
488 | DEFUN ("number-or-marker-p", Fnumber_or_marker_p, | |
489 | Snumber_or_marker_p, 1, 1, 0, | |
8c1a1077 PJ |
490 | doc: /* Return t if OBJECT is a number or a marker. */) |
491 | (object) | |
39bcc759 | 492 | Lisp_Object object; |
7921925c | 493 | { |
39bcc759 | 494 | if (NUMBERP (object) || MARKERP (object)) |
7921925c JB |
495 | return Qt; |
496 | return Qnil; | |
497 | } | |
464f8898 | 498 | |
464f8898 | 499 | DEFUN ("floatp", Ffloatp, Sfloatp, 1, 1, 0, |
8c1a1077 PJ |
500 | doc: /* Return t if OBJECT is a floating point number. */) |
501 | (object) | |
39bcc759 | 502 | Lisp_Object object; |
464f8898 | 503 | { |
39bcc759 | 504 | if (FLOATP (object)) |
464f8898 RS |
505 | return Qt; |
506 | return Qnil; | |
507 | } | |
cc94f3b2 | 508 | |
7921925c JB |
509 | \f |
510 | /* Extract and set components of lists */ | |
511 | ||
512 | DEFUN ("car", Fcar, Scar, 1, 1, 0, | |
8c1a1077 | 513 | doc: /* Return the car of LIST. If arg is nil, return nil. |
9701c742 LT |
514 | Error if arg is not nil and not a cons cell. See also `car-safe'. |
515 | ||
da46c5be LT |
516 | See Info node `(elisp)Cons Cells' for a discussion of related basic |
517 | Lisp concepts such as car, cdr, cons cell and list. */) | |
8c1a1077 | 518 | (list) |
7921925c JB |
519 | register Lisp_Object list; |
520 | { | |
0c64a8cd | 521 | return CAR (list); |
7921925c JB |
522 | } |
523 | ||
524 | DEFUN ("car-safe", Fcar_safe, Scar_safe, 1, 1, 0, | |
8c1a1077 PJ |
525 | doc: /* Return the car of OBJECT if it is a cons cell, or else nil. */) |
526 | (object) | |
7921925c JB |
527 | Lisp_Object object; |
528 | { | |
0c64a8cd | 529 | return CAR_SAFE (object); |
7921925c JB |
530 | } |
531 | ||
532 | DEFUN ("cdr", Fcdr, Scdr, 1, 1, 0, | |
8c1a1077 | 533 | doc: /* Return the cdr of LIST. If arg is nil, return nil. |
9701c742 LT |
534 | Error if arg is not nil and not a cons cell. See also `cdr-safe'. |
535 | ||
da46c5be LT |
536 | See Info node `(elisp)Cons Cells' for a discussion of related basic |
537 | Lisp concepts such as cdr, car, cons cell and list. */) | |
8c1a1077 | 538 | (list) |
7921925c JB |
539 | register Lisp_Object list; |
540 | { | |
0c64a8cd | 541 | return CDR (list); |
7921925c JB |
542 | } |
543 | ||
544 | DEFUN ("cdr-safe", Fcdr_safe, Scdr_safe, 1, 1, 0, | |
8c1a1077 PJ |
545 | doc: /* Return the cdr of OBJECT if it is a cons cell, or else nil. */) |
546 | (object) | |
7921925c JB |
547 | Lisp_Object object; |
548 | { | |
0c64a8cd | 549 | return CDR_SAFE (object); |
7921925c JB |
550 | } |
551 | ||
552 | DEFUN ("setcar", Fsetcar, Ssetcar, 2, 2, 0, | |
8c1a1077 PJ |
553 | doc: /* Set the car of CELL to be NEWCAR. Returns NEWCAR. */) |
554 | (cell, newcar) | |
7921925c JB |
555 | register Lisp_Object cell, newcar; |
556 | { | |
0c64a8cd | 557 | CHECK_CONS (cell); |
7921925c | 558 | CHECK_IMPURE (cell); |
f3fbd155 | 559 | XSETCAR (cell, newcar); |
7921925c JB |
560 | return newcar; |
561 | } | |
562 | ||
563 | DEFUN ("setcdr", Fsetcdr, Ssetcdr, 2, 2, 0, | |
8c1a1077 PJ |
564 | doc: /* Set the cdr of CELL to be NEWCDR. Returns NEWCDR. */) |
565 | (cell, newcdr) | |
7921925c JB |
566 | register Lisp_Object cell, newcdr; |
567 | { | |
0c64a8cd | 568 | CHECK_CONS (cell); |
7921925c | 569 | CHECK_IMPURE (cell); |
f3fbd155 | 570 | XSETCDR (cell, newcdr); |
7921925c JB |
571 | return newcdr; |
572 | } | |
573 | \f | |
574 | /* Extract and set components of symbols */ | |
575 | ||
8c1a1077 PJ |
576 | DEFUN ("boundp", Fboundp, Sboundp, 1, 1, 0, |
577 | doc: /* Return t if SYMBOL's value is not void. */) | |
578 | (symbol) | |
d9c2a0f2 | 579 | register Lisp_Object symbol; |
7921925c JB |
580 | { |
581 | Lisp_Object valcontents; | |
b7826503 | 582 | CHECK_SYMBOL (symbol); |
7921925c | 583 | |
f35d5bad | 584 | valcontents = SYMBOL_VALUE (symbol); |
7921925c | 585 | |
aabf6bec KH |
586 | if (BUFFER_LOCAL_VALUEP (valcontents) |
587 | || SOME_BUFFER_LOCAL_VALUEP (valcontents)) | |
d9c2a0f2 | 588 | valcontents = swap_in_symval_forwarding (symbol, valcontents); |
7921925c | 589 | |
1bfcade3 | 590 | return (EQ (valcontents, Qunbound) ? Qnil : Qt); |
7921925c JB |
591 | } |
592 | ||
8c1a1077 PJ |
593 | DEFUN ("fboundp", Ffboundp, Sfboundp, 1, 1, 0, |
594 | doc: /* Return t if SYMBOL's function definition is not void. */) | |
595 | (symbol) | |
d9c2a0f2 | 596 | register Lisp_Object symbol; |
7921925c | 597 | { |
b7826503 | 598 | CHECK_SYMBOL (symbol); |
d9c2a0f2 | 599 | return (EQ (XSYMBOL (symbol)->function, Qunbound) ? Qnil : Qt); |
7921925c JB |
600 | } |
601 | ||
8c1a1077 | 602 | DEFUN ("makunbound", Fmakunbound, Smakunbound, 1, 1, 0, |
bfb96cb7 FP |
603 | doc: /* Make SYMBOL's value be void. |
604 | Return SYMBOL. */) | |
8c1a1077 | 605 | (symbol) |
d9c2a0f2 | 606 | register Lisp_Object symbol; |
7921925c | 607 | { |
b7826503 | 608 | CHECK_SYMBOL (symbol); |
64ec26d6 | 609 | if (SYMBOL_CONSTANT_P (symbol)) |
740ef0b5 | 610 | xsignal1 (Qsetting_constant, symbol); |
d9c2a0f2 EN |
611 | Fset (symbol, Qunbound); |
612 | return symbol; | |
7921925c JB |
613 | } |
614 | ||
8c1a1077 | 615 | DEFUN ("fmakunbound", Ffmakunbound, Sfmakunbound, 1, 1, 0, |
bfb96cb7 FP |
616 | doc: /* Make SYMBOL's function definition be void. |
617 | Return SYMBOL. */) | |
8c1a1077 | 618 | (symbol) |
d9c2a0f2 | 619 | register Lisp_Object symbol; |
7921925c | 620 | { |
b7826503 | 621 | CHECK_SYMBOL (symbol); |
d9c2a0f2 | 622 | if (NILP (symbol) || EQ (symbol, Qt)) |
740ef0b5 | 623 | xsignal1 (Qsetting_constant, symbol); |
d9c2a0f2 EN |
624 | XSYMBOL (symbol)->function = Qunbound; |
625 | return symbol; | |
7921925c JB |
626 | } |
627 | ||
628 | DEFUN ("symbol-function", Fsymbol_function, Ssymbol_function, 1, 1, 0, | |
8c1a1077 PJ |
629 | doc: /* Return SYMBOL's function definition. Error if that is void. */) |
630 | (symbol) | |
ffd56f97 | 631 | register Lisp_Object symbol; |
7921925c | 632 | { |
b7826503 | 633 | CHECK_SYMBOL (symbol); |
740ef0b5 KS |
634 | if (!EQ (XSYMBOL (symbol)->function, Qunbound)) |
635 | return XSYMBOL (symbol)->function; | |
636 | xsignal1 (Qvoid_function, symbol); | |
7921925c JB |
637 | } |
638 | ||
8c1a1077 PJ |
639 | DEFUN ("symbol-plist", Fsymbol_plist, Ssymbol_plist, 1, 1, 0, |
640 | doc: /* Return SYMBOL's property list. */) | |
641 | (symbol) | |
d9c2a0f2 | 642 | register Lisp_Object symbol; |
7921925c | 643 | { |
b7826503 | 644 | CHECK_SYMBOL (symbol); |
d9c2a0f2 | 645 | return XSYMBOL (symbol)->plist; |
7921925c JB |
646 | } |
647 | ||
8c1a1077 PJ |
648 | DEFUN ("symbol-name", Fsymbol_name, Ssymbol_name, 1, 1, 0, |
649 | doc: /* Return SYMBOL's name, a string. */) | |
650 | (symbol) | |
d9c2a0f2 | 651 | register Lisp_Object symbol; |
7921925c JB |
652 | { |
653 | register Lisp_Object name; | |
654 | ||
b7826503 | 655 | CHECK_SYMBOL (symbol); |
84023177 | 656 | name = SYMBOL_NAME (symbol); |
7921925c JB |
657 | return name; |
658 | } | |
659 | ||
660 | DEFUN ("fset", Ffset, Sfset, 2, 2, 0, | |
8c1a1077 PJ |
661 | doc: /* Set SYMBOL's function definition to DEFINITION, and return DEFINITION. */) |
662 | (symbol, definition) | |
8c0b5540 | 663 | register Lisp_Object symbol, definition; |
d9c2a0f2 | 664 | { |
b7826503 | 665 | CHECK_SYMBOL (symbol); |
d9c2a0f2 | 666 | if (NILP (symbol) || EQ (symbol, Qt)) |
740ef0b5 | 667 | xsignal1 (Qsetting_constant, symbol); |
d9c2a0f2 EN |
668 | if (!NILP (Vautoload_queue) && !EQ (XSYMBOL (symbol)->function, Qunbound)) |
669 | Vautoload_queue = Fcons (Fcons (symbol, XSYMBOL (symbol)->function), | |
7921925c | 670 | Vautoload_queue); |
8c0b5540 | 671 | XSYMBOL (symbol)->function = definition; |
f845f2c9 | 672 | /* Handle automatic advice activation */ |
d9c2a0f2 | 673 | if (CONSP (XSYMBOL (symbol)->plist) && !NILP (Fget (symbol, Qad_advice_info))) |
f845f2c9 | 674 | { |
c1307a23 | 675 | call2 (Qad_activate_internal, symbol, Qnil); |
8c0b5540 | 676 | definition = XSYMBOL (symbol)->function; |
f845f2c9 | 677 | } |
8c0b5540 | 678 | return definition; |
7921925c JB |
679 | } |
680 | ||
d2fde41d SM |
681 | extern Lisp_Object Qfunction_documentation; |
682 | ||
683 | DEFUN ("defalias", Fdefalias, Sdefalias, 2, 3, 0, | |
8c1a1077 | 684 | doc: /* Set SYMBOL's function definition to DEFINITION, and return DEFINITION. |
96143227 RS |
685 | Associates the function with the current load file, if any. |
686 | The optional third argument DOCSTRING specifies the documentation string | |
687 | for SYMBOL; if it is omitted or nil, SYMBOL uses the documentation string | |
688 | determined by DEFINITION. */) | |
d2fde41d SM |
689 | (symbol, definition, docstring) |
690 | register Lisp_Object symbol, definition, docstring; | |
fc08c367 | 691 | { |
8a658a52 | 692 | CHECK_SYMBOL (symbol); |
894f6538 RS |
693 | if (CONSP (XSYMBOL (symbol)->function) |
694 | && EQ (XCAR (XSYMBOL (symbol)->function), Qautoload)) | |
695 | LOADHIST_ATTACH (Fcons (Qt, symbol)); | |
32f532b7 | 696 | definition = Ffset (symbol, definition); |
62a29071 | 697 | LOADHIST_ATTACH (Fcons (Qdefun, symbol)); |
d2fde41d SM |
698 | if (!NILP (docstring)) |
699 | Fput (symbol, Qfunction_documentation, docstring); | |
73e0d965 | 700 | return definition; |
fc08c367 RS |
701 | } |
702 | ||
7921925c | 703 | DEFUN ("setplist", Fsetplist, Ssetplist, 2, 2, 0, |
6b61353c | 704 | doc: /* Set SYMBOL's property list to NEWPLIST, and return NEWPLIST. */) |
8c1a1077 | 705 | (symbol, newplist) |
d9c2a0f2 | 706 | register Lisp_Object symbol, newplist; |
7921925c | 707 | { |
b7826503 | 708 | CHECK_SYMBOL (symbol); |
d9c2a0f2 | 709 | XSYMBOL (symbol)->plist = newplist; |
7921925c JB |
710 | return newplist; |
711 | } | |
ffd56f97 | 712 | |
6f0e897f | 713 | DEFUN ("subr-arity", Fsubr_arity, Ssubr_arity, 1, 1, 0, |
8c1a1077 PJ |
714 | doc: /* Return minimum and maximum number of args allowed for SUBR. |
715 | SUBR must be a built-in function. | |
716 | The returned value is a pair (MIN . MAX). MIN is the minimum number | |
717 | of args. MAX is the maximum number or the symbol `many', for a | |
718 | function with `&rest' args, or `unevalled' for a special form. */) | |
719 | (subr) | |
6f0e897f DL |
720 | Lisp_Object subr; |
721 | { | |
722 | short minargs, maxargs; | |
0c64a8cd | 723 | CHECK_SUBR (subr); |
6f0e897f DL |
724 | minargs = XSUBR (subr)->min_args; |
725 | maxargs = XSUBR (subr)->max_args; | |
726 | if (maxargs == MANY) | |
727 | return Fcons (make_number (minargs), Qmany); | |
728 | else if (maxargs == UNEVALLED) | |
729 | return Fcons (make_number (minargs), Qunevalled); | |
730 | else | |
731 | return Fcons (make_number (minargs), make_number (maxargs)); | |
732 | } | |
733 | ||
0fddae66 SM |
734 | DEFUN ("subr-name", Fsubr_name, Ssubr_name, 1, 1, 0, |
735 | doc: /* Return name of subroutine SUBR. | |
736 | SUBR must be a built-in function. */) | |
737 | (subr) | |
738 | Lisp_Object subr; | |
739 | { | |
740 | const char *name; | |
0c64a8cd | 741 | CHECK_SUBR (subr); |
0fddae66 SM |
742 | name = XSUBR (subr)->symbol_name; |
743 | return make_string (name, strlen (name)); | |
744 | } | |
745 | ||
6b61353c KH |
746 | DEFUN ("interactive-form", Finteractive_form, Sinteractive_form, 1, 1, 0, |
747 | doc: /* Return the interactive form of CMD or nil if none. | |
df133612 LT |
748 | If CMD is not a command, the return value is nil. |
749 | Value, if non-nil, is a list \(interactive SPEC). */) | |
6b61353c KH |
750 | (cmd) |
751 | Lisp_Object cmd; | |
cc515226 | 752 | { |
6b61353c KH |
753 | Lisp_Object fun = indirect_function (cmd); |
754 | ||
755 | if (SUBRP (fun)) | |
756 | { | |
757 | if (XSUBR (fun)->prompt) | |
758 | return list2 (Qinteractive, build_string (XSUBR (fun)->prompt)); | |
759 | } | |
760 | else if (COMPILEDP (fun)) | |
761 | { | |
762 | if ((ASIZE (fun) & PSEUDOVECTOR_SIZE_MASK) > COMPILED_INTERACTIVE) | |
763 | return list2 (Qinteractive, AREF (fun, COMPILED_INTERACTIVE)); | |
764 | } | |
765 | else if (CONSP (fun)) | |
766 | { | |
767 | Lisp_Object funcar = XCAR (fun); | |
768 | if (EQ (funcar, Qlambda)) | |
769 | return Fassq (Qinteractive, Fcdr (XCDR (fun))); | |
770 | else if (EQ (funcar, Qautoload)) | |
771 | { | |
772 | struct gcpro gcpro1; | |
773 | GCPRO1 (cmd); | |
774 | do_autoload (fun, cmd); | |
775 | UNGCPRO; | |
776 | return Finteractive_form (cmd); | |
777 | } | |
778 | } | |
cc515226 GM |
779 | return Qnil; |
780 | } | |
781 | ||
7921925c | 782 | \f |
f35d5bad GM |
783 | /*********************************************************************** |
784 | Getting and Setting Values of Symbols | |
785 | ***********************************************************************/ | |
786 | ||
787 | /* Return the symbol holding SYMBOL's value. Signal | |
788 | `cyclic-variable-indirection' if SYMBOL's chain of variable | |
789 | indirections contains a loop. */ | |
790 | ||
791 | Lisp_Object | |
792 | indirect_variable (symbol) | |
793 | Lisp_Object symbol; | |
794 | { | |
795 | Lisp_Object tortoise, hare; | |
796 | ||
797 | hare = tortoise = symbol; | |
798 | ||
799 | while (XSYMBOL (hare)->indirect_variable) | |
800 | { | |
801 | hare = XSYMBOL (hare)->value; | |
802 | if (!XSYMBOL (hare)->indirect_variable) | |
803 | break; | |
bfb96cb7 | 804 | |
f35d5bad GM |
805 | hare = XSYMBOL (hare)->value; |
806 | tortoise = XSYMBOL (tortoise)->value; | |
807 | ||
808 | if (EQ (hare, tortoise)) | |
740ef0b5 | 809 | xsignal1 (Qcyclic_variable_indirection, symbol); |
f35d5bad GM |
810 | } |
811 | ||
812 | return hare; | |
813 | } | |
814 | ||
815 | ||
816 | DEFUN ("indirect-variable", Findirect_variable, Sindirect_variable, 1, 1, 0, | |
8c1a1077 PJ |
817 | doc: /* Return the variable at the end of OBJECT's variable chain. |
818 | If OBJECT is a symbol, follow all variable indirections and return the final | |
819 | variable. If OBJECT is not a symbol, just return it. | |
820 | Signal a cyclic-variable-indirection error if there is a loop in the | |
821 | variable chain of symbols. */) | |
822 | (object) | |
f35d5bad GM |
823 | Lisp_Object object; |
824 | { | |
825 | if (SYMBOLP (object)) | |
826 | object = indirect_variable (object); | |
827 | return object; | |
828 | } | |
829 | ||
7921925c JB |
830 | |
831 | /* Given the raw contents of a symbol value cell, | |
832 | return the Lisp value of the symbol. | |
833 | This does not handle buffer-local variables; use | |
834 | swap_in_symval_forwarding for that. */ | |
835 | ||
836 | Lisp_Object | |
837 | do_symval_forwarding (valcontents) | |
838 | register Lisp_Object valcontents; | |
839 | { | |
840 | register Lisp_Object val; | |
46b2ac21 KH |
841 | int offset; |
842 | if (MISCP (valcontents)) | |
324a6eef | 843 | switch (XMISCTYPE (valcontents)) |
46b2ac21 KH |
844 | { |
845 | case Lisp_Misc_Intfwd: | |
846 | XSETINT (val, *XINTFWD (valcontents)->intvar); | |
847 | return val; | |
7921925c | 848 | |
46b2ac21 KH |
849 | case Lisp_Misc_Boolfwd: |
850 | return (*XBOOLFWD (valcontents)->boolvar ? Qt : Qnil); | |
7921925c | 851 | |
46b2ac21 KH |
852 | case Lisp_Misc_Objfwd: |
853 | return *XOBJFWD (valcontents)->objvar; | |
7921925c | 854 | |
46b2ac21 KH |
855 | case Lisp_Misc_Buffer_Objfwd: |
856 | offset = XBUFFER_OBJFWD (valcontents)->offset; | |
f6cd0527 | 857 | return PER_BUFFER_VALUE (current_buffer, offset); |
7403b5c8 | 858 | |
e5f8af9e KH |
859 | case Lisp_Misc_Kboard_Objfwd: |
860 | offset = XKBOARD_OBJFWD (valcontents)->offset; | |
861 | return *(Lisp_Object *)(offset + (char *)current_kboard); | |
46b2ac21 | 862 | } |
7921925c JB |
863 | return valcontents; |
864 | } | |
865 | ||
d9c2a0f2 EN |
866 | /* Store NEWVAL into SYMBOL, where VALCONTENTS is found in the value cell |
867 | of SYMBOL. If SYMBOL is buffer-local, VALCONTENTS should be the | |
7921925c | 868 | buffer-independent contents of the value cell: forwarded just one |
7a283f36 GM |
869 | step past the buffer-localness. |
870 | ||
871 | BUF non-zero means set the value in buffer BUF instead of the | |
872 | current buffer. This only plays a role for per-buffer variables. */ | |
7921925c JB |
873 | |
874 | void | |
7a283f36 | 875 | store_symval_forwarding (symbol, valcontents, newval, buf) |
d9c2a0f2 | 876 | Lisp_Object symbol; |
7921925c | 877 | register Lisp_Object valcontents, newval; |
7a283f36 | 878 | struct buffer *buf; |
7921925c | 879 | { |
0220c518 | 880 | switch (SWITCH_ENUM_CAST (XTYPE (valcontents))) |
7921925c | 881 | { |
46b2ac21 | 882 | case Lisp_Misc: |
324a6eef | 883 | switch (XMISCTYPE (valcontents)) |
46b2ac21 KH |
884 | { |
885 | case Lisp_Misc_Intfwd: | |
b7826503 | 886 | CHECK_NUMBER (newval); |
46b2ac21 | 887 | *XINTFWD (valcontents)->intvar = XINT (newval); |
e6c82a8d RS |
888 | if (*XINTFWD (valcontents)->intvar != XINT (newval)) |
889 | error ("Value out of range for variable `%s'", | |
d5db4077 | 890 | SDATA (SYMBOL_NAME (symbol))); |
46b2ac21 KH |
891 | break; |
892 | ||
893 | case Lisp_Misc_Boolfwd: | |
894 | *XBOOLFWD (valcontents)->boolvar = NILP (newval) ? 0 : 1; | |
895 | break; | |
896 | ||
897 | case Lisp_Misc_Objfwd: | |
898 | *XOBJFWD (valcontents)->objvar = newval; | |
6b61353c KH |
899 | |
900 | /* If this variable is a default for something stored | |
901 | in the buffer itself, such as default-fill-column, | |
902 | find the buffers that don't have local values for it | |
903 | and update them. */ | |
904 | if (XOBJFWD (valcontents)->objvar > (Lisp_Object *) &buffer_defaults | |
905 | && XOBJFWD (valcontents)->objvar < (Lisp_Object *) (&buffer_defaults + 1)) | |
906 | { | |
907 | int offset = ((char *) XOBJFWD (valcontents)->objvar | |
908 | - (char *) &buffer_defaults); | |
909 | int idx = PER_BUFFER_IDX (offset); | |
910 | ||
43e50e40 | 911 | Lisp_Object tail; |
6b61353c KH |
912 | |
913 | if (idx <= 0) | |
914 | break; | |
915 | ||
916 | for (tail = Vbuffer_alist; CONSP (tail); tail = XCDR (tail)) | |
917 | { | |
918 | Lisp_Object buf; | |
919 | struct buffer *b; | |
920 | ||
921 | buf = Fcdr (XCAR (tail)); | |
922 | if (!BUFFERP (buf)) continue; | |
923 | b = XBUFFER (buf); | |
924 | ||
925 | if (! PER_BUFFER_VALUE_P (b, idx)) | |
926 | PER_BUFFER_VALUE (b, offset) = newval; | |
927 | } | |
928 | } | |
46b2ac21 KH |
929 | break; |
930 | ||
931 | case Lisp_Misc_Buffer_Objfwd: | |
932 | { | |
933 | int offset = XBUFFER_OBJFWD (valcontents)->offset; | |
934 | Lisp_Object type; | |
935 | ||
d9b36d19 | 936 | type = PER_BUFFER_TYPE (offset); |
46b2ac21 KH |
937 | if (! NILP (type) && ! NILP (newval) |
938 | && XTYPE (newval) != XINT (type)) | |
939 | buffer_slot_type_mismatch (offset); | |
940 | ||
7a283f36 GM |
941 | if (buf == NULL) |
942 | buf = current_buffer; | |
943 | PER_BUFFER_VALUE (buf, offset) = newval; | |
46b2ac21 | 944 | } |
7403b5c8 KH |
945 | break; |
946 | ||
e5f8af9e | 947 | case Lisp_Misc_Kboard_Objfwd: |
7a283f36 GM |
948 | { |
949 | char *base = (char *) current_kboard; | |
950 | char *p = base + XKBOARD_OBJFWD (valcontents)->offset; | |
951 | *(Lisp_Object *) p = newval; | |
952 | } | |
7403b5c8 KH |
953 | break; |
954 | ||
46b2ac21 KH |
955 | default: |
956 | goto def; | |
957 | } | |
7921925c JB |
958 | break; |
959 | ||
7921925c | 960 | default: |
46b2ac21 | 961 | def: |
f35d5bad | 962 | valcontents = SYMBOL_VALUE (symbol); |
e9ebc175 KH |
963 | if (BUFFER_LOCAL_VALUEP (valcontents) |
964 | || SOME_BUFFER_LOCAL_VALUEP (valcontents)) | |
b0c2d1c6 | 965 | XBUFFER_LOCAL_VALUE (valcontents)->realvalue = newval; |
7921925c | 966 | else |
f35d5bad | 967 | SET_SYMBOL_VALUE (symbol, newval); |
7921925c JB |
968 | } |
969 | } | |
970 | ||
b0d53add GM |
971 | /* Set up SYMBOL to refer to its global binding. |
972 | This makes it safe to alter the status of other bindings. */ | |
973 | ||
974 | void | |
975 | swap_in_global_binding (symbol) | |
976 | Lisp_Object symbol; | |
977 | { | |
978 | Lisp_Object valcontents, cdr; | |
bfb96cb7 | 979 | |
f35d5bad | 980 | valcontents = SYMBOL_VALUE (symbol); |
b0d53add GM |
981 | if (!BUFFER_LOCAL_VALUEP (valcontents) |
982 | && !SOME_BUFFER_LOCAL_VALUEP (valcontents)) | |
983 | abort (); | |
984 | cdr = XBUFFER_LOCAL_VALUE (valcontents)->cdr; | |
985 | ||
986 | /* Unload the previously loaded binding. */ | |
987 | Fsetcdr (XCAR (cdr), | |
988 | do_symval_forwarding (XBUFFER_LOCAL_VALUE (valcontents)->realvalue)); | |
bfb96cb7 | 989 | |
b0d53add | 990 | /* Select the global binding in the symbol. */ |
f3fbd155 | 991 | XSETCAR (cdr, cdr); |
7a283f36 | 992 | store_symval_forwarding (symbol, valcontents, XCDR (cdr), NULL); |
b0d53add GM |
993 | |
994 | /* Indicate that the global binding is set up now. */ | |
995 | XBUFFER_LOCAL_VALUE (valcontents)->frame = Qnil; | |
996 | XBUFFER_LOCAL_VALUE (valcontents)->buffer = Qnil; | |
997 | XBUFFER_LOCAL_VALUE (valcontents)->found_for_frame = 0; | |
998 | XBUFFER_LOCAL_VALUE (valcontents)->found_for_buffer = 0; | |
999 | } | |
1000 | ||
2829d05f | 1001 | /* Set up the buffer-local symbol SYMBOL for validity in the current buffer. |
42e975f0 RS |
1002 | VALCONTENTS is the contents of its value cell, |
1003 | which points to a struct Lisp_Buffer_Local_Value. | |
1004 | ||
1005 | Return the value forwarded one step past the buffer-local stage. | |
1006 | This could be another forwarding pointer. */ | |
7921925c JB |
1007 | |
1008 | static Lisp_Object | |
d9c2a0f2 EN |
1009 | swap_in_symval_forwarding (symbol, valcontents) |
1010 | Lisp_Object symbol, valcontents; | |
7921925c | 1011 | { |
7921925c | 1012 | register Lisp_Object tem1; |
bfb96cb7 | 1013 | |
b0c2d1c6 | 1014 | tem1 = XBUFFER_LOCAL_VALUE (valcontents)->buffer; |
7921925c | 1015 | |
42e975f0 RS |
1016 | if (NILP (tem1) |
1017 | || current_buffer != XBUFFER (tem1) | |
1018 | || (XBUFFER_LOCAL_VALUE (valcontents)->check_frame | |
1019 | && ! EQ (selected_frame, XBUFFER_LOCAL_VALUE (valcontents)->frame))) | |
7921925c | 1020 | { |
f35d5bad GM |
1021 | if (XSYMBOL (symbol)->indirect_variable) |
1022 | symbol = indirect_variable (symbol); | |
bfb96cb7 | 1023 | |
42e975f0 | 1024 | /* Unload the previously loaded binding. */ |
7539e11f | 1025 | tem1 = XCAR (XBUFFER_LOCAL_VALUE (valcontents)->cdr); |
8d4afcac | 1026 | Fsetcdr (tem1, |
b0c2d1c6 | 1027 | do_symval_forwarding (XBUFFER_LOCAL_VALUE (valcontents)->realvalue)); |
42e975f0 | 1028 | /* Choose the new binding. */ |
d9c2a0f2 | 1029 | tem1 = assq_no_quit (symbol, current_buffer->local_var_alist); |
b0c2d1c6 RS |
1030 | XBUFFER_LOCAL_VALUE (valcontents)->found_for_frame = 0; |
1031 | XBUFFER_LOCAL_VALUE (valcontents)->found_for_buffer = 0; | |
a33ef3ab | 1032 | if (NILP (tem1)) |
b0c2d1c6 RS |
1033 | { |
1034 | if (XBUFFER_LOCAL_VALUE (valcontents)->check_frame) | |
1cc04aed | 1035 | tem1 = assq_no_quit (symbol, XFRAME (selected_frame)->param_alist); |
b0c2d1c6 RS |
1036 | if (! NILP (tem1)) |
1037 | XBUFFER_LOCAL_VALUE (valcontents)->found_for_frame = 1; | |
1038 | else | |
1039 | tem1 = XBUFFER_LOCAL_VALUE (valcontents)->cdr; | |
1040 | } | |
1041 | else | |
1042 | XBUFFER_LOCAL_VALUE (valcontents)->found_for_buffer = 1; | |
1043 | ||
42e975f0 | 1044 | /* Load the new binding. */ |
f3fbd155 | 1045 | XSETCAR (XBUFFER_LOCAL_VALUE (valcontents)->cdr, tem1); |
b0c2d1c6 | 1046 | XSETBUFFER (XBUFFER_LOCAL_VALUE (valcontents)->buffer, current_buffer); |
1cc04aed | 1047 | XBUFFER_LOCAL_VALUE (valcontents)->frame = selected_frame; |
b0c2d1c6 RS |
1048 | store_symval_forwarding (symbol, |
1049 | XBUFFER_LOCAL_VALUE (valcontents)->realvalue, | |
7a283f36 | 1050 | Fcdr (tem1), NULL); |
7921925c | 1051 | } |
b0c2d1c6 | 1052 | return XBUFFER_LOCAL_VALUE (valcontents)->realvalue; |
7921925c JB |
1053 | } |
1054 | \f | |
14e76af9 JB |
1055 | /* Find the value of a symbol, returning Qunbound if it's not bound. |
1056 | This is helpful for code which just wants to get a variable's value | |
8e6208c5 | 1057 | if it has one, without signaling an error. |
14e76af9 JB |
1058 | Note that it must not be possible to quit |
1059 | within this function. Great care is required for this. */ | |
7921925c | 1060 | |
14e76af9 | 1061 | Lisp_Object |
d9c2a0f2 EN |
1062 | find_symbol_value (symbol) |
1063 | Lisp_Object symbol; | |
7921925c | 1064 | { |
dd8daec5 | 1065 | register Lisp_Object valcontents; |
7921925c | 1066 | register Lisp_Object val; |
bfb96cb7 | 1067 | |
b7826503 | 1068 | CHECK_SYMBOL (symbol); |
f35d5bad | 1069 | valcontents = SYMBOL_VALUE (symbol); |
7921925c | 1070 | |
aabf6bec KH |
1071 | if (BUFFER_LOCAL_VALUEP (valcontents) |
1072 | || SOME_BUFFER_LOCAL_VALUEP (valcontents)) | |
2a359158 | 1073 | valcontents = swap_in_symval_forwarding (symbol, valcontents); |
7921925c | 1074 | |
536b772a KH |
1075 | if (MISCP (valcontents)) |
1076 | { | |
324a6eef | 1077 | switch (XMISCTYPE (valcontents)) |
46b2ac21 KH |
1078 | { |
1079 | case Lisp_Misc_Intfwd: | |
1080 | XSETINT (val, *XINTFWD (valcontents)->intvar); | |
1081 | return val; | |
7921925c | 1082 | |
46b2ac21 KH |
1083 | case Lisp_Misc_Boolfwd: |
1084 | return (*XBOOLFWD (valcontents)->boolvar ? Qt : Qnil); | |
7921925c | 1085 | |
46b2ac21 KH |
1086 | case Lisp_Misc_Objfwd: |
1087 | return *XOBJFWD (valcontents)->objvar; | |
7921925c | 1088 | |
46b2ac21 | 1089 | case Lisp_Misc_Buffer_Objfwd: |
f6cd0527 | 1090 | return PER_BUFFER_VALUE (current_buffer, |
999b32fd | 1091 | XBUFFER_OBJFWD (valcontents)->offset); |
7403b5c8 | 1092 | |
e5f8af9e KH |
1093 | case Lisp_Misc_Kboard_Objfwd: |
1094 | return *(Lisp_Object *)(XKBOARD_OBJFWD (valcontents)->offset | |
1095 | + (char *)current_kboard); | |
46b2ac21 | 1096 | } |
7921925c JB |
1097 | } |
1098 | ||
1099 | return valcontents; | |
1100 | } | |
1101 | ||
14e76af9 | 1102 | DEFUN ("symbol-value", Fsymbol_value, Ssymbol_value, 1, 1, 0, |
8c1a1077 PJ |
1103 | doc: /* Return SYMBOL's value. Error if that is void. */) |
1104 | (symbol) | |
d9c2a0f2 | 1105 | Lisp_Object symbol; |
14e76af9 | 1106 | { |
0671d7c0 | 1107 | Lisp_Object val; |
14e76af9 | 1108 | |
d9c2a0f2 | 1109 | val = find_symbol_value (symbol); |
740ef0b5 | 1110 | if (!EQ (val, Qunbound)) |
14e76af9 | 1111 | return val; |
740ef0b5 KS |
1112 | |
1113 | xsignal1 (Qvoid_variable, symbol); | |
14e76af9 JB |
1114 | } |
1115 | ||
7921925c | 1116 | DEFUN ("set", Fset, Sset, 2, 2, 0, |
8c1a1077 PJ |
1117 | doc: /* Set SYMBOL's value to NEWVAL, and return NEWVAL. */) |
1118 | (symbol, newval) | |
d9c2a0f2 | 1119 | register Lisp_Object symbol, newval; |
05ef7169 | 1120 | { |
2829d05f | 1121 | return set_internal (symbol, newval, current_buffer, 0); |
05ef7169 RS |
1122 | } |
1123 | ||
1f35ce36 RS |
1124 | /* Return 1 if SYMBOL currently has a let-binding |
1125 | which was made in the buffer that is now current. */ | |
1126 | ||
1127 | static int | |
1128 | let_shadows_buffer_binding_p (symbol) | |
1129 | Lisp_Object symbol; | |
1130 | { | |
92426155 | 1131 | volatile struct specbinding *p; |
1f35ce36 RS |
1132 | |
1133 | for (p = specpdl_ptr - 1; p >= specpdl; p--) | |
f35d5bad GM |
1134 | if (p->func == NULL |
1135 | && CONSP (p->symbol)) | |
1136 | { | |
1137 | Lisp_Object let_bound_symbol = XCAR (p->symbol); | |
1138 | if ((EQ (symbol, let_bound_symbol) | |
1139 | || (XSYMBOL (let_bound_symbol)->indirect_variable | |
1140 | && EQ (symbol, indirect_variable (let_bound_symbol)))) | |
1141 | && XBUFFER (XCDR (XCDR (p->symbol))) == current_buffer) | |
1142 | break; | |
1143 | } | |
1f35ce36 | 1144 | |
f35d5bad | 1145 | return p >= specpdl; |
1f35ce36 RS |
1146 | } |
1147 | ||
25638b07 | 1148 | /* Store the value NEWVAL into SYMBOL. |
2829d05f RS |
1149 | If buffer-locality is an issue, BUF specifies which buffer to use. |
1150 | (0 stands for the current buffer.) | |
1151 | ||
05ef7169 RS |
1152 | If BINDFLAG is zero, then if this symbol is supposed to become |
1153 | local in every buffer where it is set, then we make it local. | |
1154 | If BINDFLAG is nonzero, we don't do that. */ | |
1155 | ||
1156 | Lisp_Object | |
2829d05f | 1157 | set_internal (symbol, newval, buf, bindflag) |
05ef7169 | 1158 | register Lisp_Object symbol, newval; |
2829d05f | 1159 | struct buffer *buf; |
05ef7169 | 1160 | int bindflag; |
7921925c | 1161 | { |
1bfcade3 | 1162 | int voide = EQ (newval, Qunbound); |
7921925c | 1163 | |
4c47c973 | 1164 | register Lisp_Object valcontents, innercontents, tem1, current_alist_element; |
7921925c | 1165 | |
2829d05f RS |
1166 | if (buf == 0) |
1167 | buf = current_buffer; | |
1168 | ||
1169 | /* If restoring in a dead buffer, do nothing. */ | |
1170 | if (NILP (buf->name)) | |
1171 | return newval; | |
1172 | ||
b7826503 | 1173 | CHECK_SYMBOL (symbol); |
f35d5bad GM |
1174 | if (SYMBOL_CONSTANT_P (symbol) |
1175 | && (NILP (Fkeywordp (symbol)) | |
1176 | || !EQ (newval, SYMBOL_VALUE (symbol)))) | |
740ef0b5 | 1177 | xsignal1 (Qsetting_constant, symbol); |
4c47c973 | 1178 | |
f35d5bad | 1179 | innercontents = valcontents = SYMBOL_VALUE (symbol); |
bfb96cb7 | 1180 | |
e9ebc175 | 1181 | if (BUFFER_OBJFWDP (valcontents)) |
7921925c | 1182 | { |
999b32fd | 1183 | int offset = XBUFFER_OBJFWD (valcontents)->offset; |
f6cd0527 | 1184 | int idx = PER_BUFFER_IDX (offset); |
999b32fd GM |
1185 | if (idx > 0 |
1186 | && !bindflag | |
1187 | && !let_shadows_buffer_binding_p (symbol)) | |
f6cd0527 | 1188 | SET_PER_BUFFER_VALUE_P (buf, idx, 1); |
7921925c | 1189 | } |
e9ebc175 KH |
1190 | else if (BUFFER_LOCAL_VALUEP (valcontents) |
1191 | || SOME_BUFFER_LOCAL_VALUEP (valcontents)) | |
7921925c | 1192 | { |
42e975f0 | 1193 | /* valcontents is a struct Lisp_Buffer_Local_Value. */ |
f35d5bad GM |
1194 | if (XSYMBOL (symbol)->indirect_variable) |
1195 | symbol = indirect_variable (symbol); | |
42e975f0 RS |
1196 | |
1197 | /* What binding is loaded right now? */ | |
b0c2d1c6 | 1198 | current_alist_element |
7539e11f | 1199 | = XCAR (XBUFFER_LOCAL_VALUE (valcontents)->cdr); |
d8cafeb5 JB |
1200 | |
1201 | /* If the current buffer is not the buffer whose binding is | |
42e975f0 RS |
1202 | loaded, or if there may be frame-local bindings and the frame |
1203 | isn't the right one, or if it's a Lisp_Buffer_Local_Value and | |
1204 | the default binding is loaded, the loaded binding may be the | |
1205 | wrong one. */ | |
8801a864 KR |
1206 | if (!BUFFERP (XBUFFER_LOCAL_VALUE (valcontents)->buffer) |
1207 | || buf != XBUFFER (XBUFFER_LOCAL_VALUE (valcontents)->buffer) | |
42e975f0 RS |
1208 | || (XBUFFER_LOCAL_VALUE (valcontents)->check_frame |
1209 | && !EQ (selected_frame, XBUFFER_LOCAL_VALUE (valcontents)->frame)) | |
1210 | || (BUFFER_LOCAL_VALUEP (valcontents) | |
1211 | && EQ (XCAR (current_alist_element), | |
1212 | current_alist_element))) | |
7921925c | 1213 | { |
42e975f0 RS |
1214 | /* The currently loaded binding is not necessarily valid. |
1215 | We need to unload it, and choose a new binding. */ | |
1216 | ||
1217 | /* Write out `realvalue' to the old loaded binding. */ | |
d8cafeb5 | 1218 | Fsetcdr (current_alist_element, |
b0c2d1c6 | 1219 | do_symval_forwarding (XBUFFER_LOCAL_VALUE (valcontents)->realvalue)); |
7921925c | 1220 | |
42e975f0 | 1221 | /* Find the new binding. */ |
2829d05f | 1222 | tem1 = Fassq (symbol, buf->local_var_alist); |
b0c2d1c6 RS |
1223 | XBUFFER_LOCAL_VALUE (valcontents)->found_for_buffer = 1; |
1224 | XBUFFER_LOCAL_VALUE (valcontents)->found_for_frame = 0; | |
1225 | ||
a33ef3ab | 1226 | if (NILP (tem1)) |
d8cafeb5 JB |
1227 | { |
1228 | /* This buffer still sees the default value. */ | |
1229 | ||
1230 | /* If the variable is a Lisp_Some_Buffer_Local_Value, | |
05ef7169 | 1231 | or if this is `let' rather than `set', |
d8cafeb5 | 1232 | make CURRENT-ALIST-ELEMENT point to itself, |
1f35ce36 RS |
1233 | indicating that we're seeing the default value. |
1234 | Likewise if the variable has been let-bound | |
1235 | in the current buffer. */ | |
1236 | if (bindflag || SOME_BUFFER_LOCAL_VALUEP (valcontents) | |
1237 | || let_shadows_buffer_binding_p (symbol)) | |
b0c2d1c6 RS |
1238 | { |
1239 | XBUFFER_LOCAL_VALUE (valcontents)->found_for_buffer = 0; | |
1240 | ||
1241 | if (XBUFFER_LOCAL_VALUE (valcontents)->check_frame) | |
1cc04aed GM |
1242 | tem1 = Fassq (symbol, |
1243 | XFRAME (selected_frame)->param_alist); | |
d8cafeb5 | 1244 | |
b0c2d1c6 RS |
1245 | if (! NILP (tem1)) |
1246 | XBUFFER_LOCAL_VALUE (valcontents)->found_for_frame = 1; | |
1247 | else | |
1248 | tem1 = XBUFFER_LOCAL_VALUE (valcontents)->cdr; | |
1249 | } | |
05ef7169 | 1250 | /* If it's a Lisp_Buffer_Local_Value, being set not bound, |
1f35ce36 RS |
1251 | and we're not within a let that was made for this buffer, |
1252 | create a new buffer-local binding for the variable. | |
1253 | That means, give this buffer a new assoc for a local value | |
42e975f0 | 1254 | and load that binding. */ |
d8cafeb5 JB |
1255 | else |
1256 | { | |
d2fde41d | 1257 | tem1 = Fcons (symbol, XCDR (current_alist_element)); |
2829d05f RS |
1258 | buf->local_var_alist |
1259 | = Fcons (tem1, buf->local_var_alist); | |
d8cafeb5 JB |
1260 | } |
1261 | } | |
b0c2d1c6 | 1262 | |
42e975f0 | 1263 | /* Record which binding is now loaded. */ |
f3fbd155 KR |
1264 | XSETCAR (XBUFFER_LOCAL_VALUE (valcontents)->cdr, |
1265 | tem1); | |
d8cafeb5 | 1266 | |
8013296c | 1267 | /* Set `buffer' and `frame' slots for the binding now loaded. */ |
2829d05f | 1268 | XSETBUFFER (XBUFFER_LOCAL_VALUE (valcontents)->buffer, buf); |
1cc04aed | 1269 | XBUFFER_LOCAL_VALUE (valcontents)->frame = selected_frame; |
7921925c | 1270 | } |
4c47c973 | 1271 | innercontents = XBUFFER_LOCAL_VALUE (valcontents)->realvalue; |
7921925c | 1272 | } |
d8cafeb5 | 1273 | |
7921925c JB |
1274 | /* If storing void (making the symbol void), forward only through |
1275 | buffer-local indicator, not through Lisp_Objfwd, etc. */ | |
1276 | if (voide) | |
7a283f36 | 1277 | store_symval_forwarding (symbol, Qnil, newval, buf); |
7921925c | 1278 | else |
7a283f36 | 1279 | store_symval_forwarding (symbol, innercontents, newval, buf); |
4c47c973 GM |
1280 | |
1281 | /* If we just set a variable whose current binding is frame-local, | |
1282 | store the new value in the frame parameter too. */ | |
1283 | ||
1284 | if (BUFFER_LOCAL_VALUEP (valcontents) | |
1285 | || SOME_BUFFER_LOCAL_VALUEP (valcontents)) | |
1286 | { | |
1287 | /* What binding is loaded right now? */ | |
1288 | current_alist_element | |
1289 | = XCAR (XBUFFER_LOCAL_VALUE (valcontents)->cdr); | |
1290 | ||
1291 | /* If the current buffer is not the buffer whose binding is | |
1292 | loaded, or if there may be frame-local bindings and the frame | |
1293 | isn't the right one, or if it's a Lisp_Buffer_Local_Value and | |
1294 | the default binding is loaded, the loaded binding may be the | |
1295 | wrong one. */ | |
1296 | if (XBUFFER_LOCAL_VALUE (valcontents)->found_for_frame) | |
f3fbd155 | 1297 | XSETCDR (current_alist_element, newval); |
4c47c973 | 1298 | } |
d8cafeb5 | 1299 | |
7921925c JB |
1300 | return newval; |
1301 | } | |
1302 | \f | |
1303 | /* Access or set a buffer-local symbol's default value. */ | |
1304 | ||
d9c2a0f2 | 1305 | /* Return the default value of SYMBOL, but don't check for voidness. |
1bfcade3 | 1306 | Return Qunbound if it is void. */ |
7921925c JB |
1307 | |
1308 | Lisp_Object | |
d9c2a0f2 EN |
1309 | default_value (symbol) |
1310 | Lisp_Object symbol; | |
7921925c JB |
1311 | { |
1312 | register Lisp_Object valcontents; | |
1313 | ||
b7826503 | 1314 | CHECK_SYMBOL (symbol); |
f35d5bad | 1315 | valcontents = SYMBOL_VALUE (symbol); |
7921925c JB |
1316 | |
1317 | /* For a built-in buffer-local variable, get the default value | |
1318 | rather than letting do_symval_forwarding get the current value. */ | |
e9ebc175 | 1319 | if (BUFFER_OBJFWDP (valcontents)) |
7921925c | 1320 | { |
999b32fd | 1321 | int offset = XBUFFER_OBJFWD (valcontents)->offset; |
f6cd0527 GM |
1322 | if (PER_BUFFER_IDX (offset) != 0) |
1323 | return PER_BUFFER_DEFAULT (offset); | |
7921925c JB |
1324 | } |
1325 | ||
1326 | /* Handle user-created local variables. */ | |
e9ebc175 KH |
1327 | if (BUFFER_LOCAL_VALUEP (valcontents) |
1328 | || SOME_BUFFER_LOCAL_VALUEP (valcontents)) | |
7921925c JB |
1329 | { |
1330 | /* If var is set up for a buffer that lacks a local value for it, | |
1331 | the current value is nominally the default value. | |
42e975f0 | 1332 | But the `realvalue' slot may be more up to date, since |
7921925c JB |
1333 | ordinary setq stores just that slot. So use that. */ |
1334 | Lisp_Object current_alist_element, alist_element_car; | |
1335 | current_alist_element | |
7539e11f KR |
1336 | = XCAR (XBUFFER_LOCAL_VALUE (valcontents)->cdr); |
1337 | alist_element_car = XCAR (current_alist_element); | |
7921925c | 1338 | if (EQ (alist_element_car, current_alist_element)) |
b0c2d1c6 | 1339 | return do_symval_forwarding (XBUFFER_LOCAL_VALUE (valcontents)->realvalue); |
7921925c | 1340 | else |
7539e11f | 1341 | return XCDR (XBUFFER_LOCAL_VALUE (valcontents)->cdr); |
7921925c JB |
1342 | } |
1343 | /* For other variables, get the current value. */ | |
1344 | return do_symval_forwarding (valcontents); | |
1345 | } | |
1346 | ||
1347 | DEFUN ("default-boundp", Fdefault_boundp, Sdefault_boundp, 1, 1, 0, | |
8c1a1077 PJ |
1348 | doc: /* Return t if SYMBOL has a non-void default value. |
1349 | This is the value that is seen in buffers that do not have their own values | |
1350 | for this variable. */) | |
1351 | (symbol) | |
d9c2a0f2 | 1352 | Lisp_Object symbol; |
7921925c JB |
1353 | { |
1354 | register Lisp_Object value; | |
1355 | ||
d9c2a0f2 | 1356 | value = default_value (symbol); |
1bfcade3 | 1357 | return (EQ (value, Qunbound) ? Qnil : Qt); |
7921925c JB |
1358 | } |
1359 | ||
1360 | DEFUN ("default-value", Fdefault_value, Sdefault_value, 1, 1, 0, | |
8c1a1077 PJ |
1361 | doc: /* Return SYMBOL's default value. |
1362 | This is the value that is seen in buffers that do not have their own values | |
1363 | for this variable. The default value is meaningful for variables with | |
1364 | local bindings in certain buffers. */) | |
1365 | (symbol) | |
d9c2a0f2 | 1366 | Lisp_Object symbol; |
7921925c JB |
1367 | { |
1368 | register Lisp_Object value; | |
1369 | ||
d9c2a0f2 | 1370 | value = default_value (symbol); |
740ef0b5 KS |
1371 | if (!EQ (value, Qunbound)) |
1372 | return value; | |
1373 | ||
1374 | xsignal1 (Qvoid_variable, symbol); | |
7921925c JB |
1375 | } |
1376 | ||
1377 | DEFUN ("set-default", Fset_default, Sset_default, 2, 2, 0, | |
6e86a75d | 1378 | doc: /* Set SYMBOL's default value to VALUE. SYMBOL and VALUE are evaluated. |
8c1a1077 PJ |
1379 | The default value is seen in buffers that do not have their own values |
1380 | for this variable. */) | |
1381 | (symbol, value) | |
d9c2a0f2 | 1382 | Lisp_Object symbol, value; |
7921925c JB |
1383 | { |
1384 | register Lisp_Object valcontents, current_alist_element, alist_element_buffer; | |
1385 | ||
b7826503 | 1386 | CHECK_SYMBOL (symbol); |
f35d5bad | 1387 | valcontents = SYMBOL_VALUE (symbol); |
7921925c JB |
1388 | |
1389 | /* Handle variables like case-fold-search that have special slots | |
1390 | in the buffer. Make them work apparently like Lisp_Buffer_Local_Value | |
1391 | variables. */ | |
e9ebc175 | 1392 | if (BUFFER_OBJFWDP (valcontents)) |
7921925c | 1393 | { |
999b32fd | 1394 | int offset = XBUFFER_OBJFWD (valcontents)->offset; |
f6cd0527 | 1395 | int idx = PER_BUFFER_IDX (offset); |
7921925c | 1396 | |
f6cd0527 | 1397 | PER_BUFFER_DEFAULT (offset) = value; |
984ef137 KH |
1398 | |
1399 | /* If this variable is not always local in all buffers, | |
1400 | set it in the buffers that don't nominally have a local value. */ | |
999b32fd | 1401 | if (idx > 0) |
7921925c | 1402 | { |
999b32fd | 1403 | struct buffer *b; |
bfb96cb7 | 1404 | |
7921925c | 1405 | for (b = all_buffers; b; b = b->next) |
f6cd0527 GM |
1406 | if (!PER_BUFFER_VALUE_P (b, idx)) |
1407 | PER_BUFFER_VALUE (b, offset) = value; | |
7921925c JB |
1408 | } |
1409 | return value; | |
1410 | } | |
1411 | ||
e9ebc175 KH |
1412 | if (!BUFFER_LOCAL_VALUEP (valcontents) |
1413 | && !SOME_BUFFER_LOCAL_VALUEP (valcontents)) | |
d9c2a0f2 | 1414 | return Fset (symbol, value); |
7921925c | 1415 | |
42e975f0 | 1416 | /* Store new value into the DEFAULT-VALUE slot. */ |
f3fbd155 | 1417 | XSETCDR (XBUFFER_LOCAL_VALUE (valcontents)->cdr, value); |
7921925c | 1418 | |
42e975f0 | 1419 | /* If the default binding is now loaded, set the REALVALUE slot too. */ |
8d4afcac | 1420 | current_alist_element |
7539e11f | 1421 | = XCAR (XBUFFER_LOCAL_VALUE (valcontents)->cdr); |
7921925c JB |
1422 | alist_element_buffer = Fcar (current_alist_element); |
1423 | if (EQ (alist_element_buffer, current_alist_element)) | |
7a283f36 GM |
1424 | store_symval_forwarding (symbol, |
1425 | XBUFFER_LOCAL_VALUE (valcontents)->realvalue, | |
1426 | value, NULL); | |
7921925c JB |
1427 | |
1428 | return value; | |
1429 | } | |
1430 | ||
7a7df7ac | 1431 | DEFUN ("setq-default", Fsetq_default, Ssetq_default, 0, UNEVALLED, 0, |
8c1a1077 PJ |
1432 | doc: /* Set the default value of variable VAR to VALUE. |
1433 | VAR, the variable name, is literal (not evaluated); | |
bfb96cb7 | 1434 | VALUE is an expression: it is evaluated and its value returned. |
8c1a1077 PJ |
1435 | The default value of a variable is seen in buffers |
1436 | that do not have their own values for the variable. | |
1437 | ||
1438 | More generally, you can use multiple variables and values, as in | |
948d2995 JB |
1439 | (setq-default VAR VALUE VAR VALUE...) |
1440 | This sets each VAR's default value to the corresponding VALUE. | |
1441 | The VALUE for the Nth VAR can refer to the new default values | |
1442 | of previous VARs. | |
7a7df7ac | 1443 | usage: (setq-default [VAR VALUE...]) */) |
8c1a1077 | 1444 | (args) |
7921925c JB |
1445 | Lisp_Object args; |
1446 | { | |
1447 | register Lisp_Object args_left; | |
d9c2a0f2 | 1448 | register Lisp_Object val, symbol; |
7921925c JB |
1449 | struct gcpro gcpro1; |
1450 | ||
a33ef3ab | 1451 | if (NILP (args)) |
7921925c JB |
1452 | return Qnil; |
1453 | ||
1454 | args_left = args; | |
1455 | GCPRO1 (args); | |
1456 | ||
1457 | do | |
1458 | { | |
1459 | val = Feval (Fcar (Fcdr (args_left))); | |
d2fde41d | 1460 | symbol = XCAR (args_left); |
d9c2a0f2 | 1461 | Fset_default (symbol, val); |
d2fde41d | 1462 | args_left = Fcdr (XCDR (args_left)); |
7921925c | 1463 | } |
a33ef3ab | 1464 | while (!NILP (args_left)); |
7921925c JB |
1465 | |
1466 | UNGCPRO; | |
1467 | return val; | |
1468 | } | |
1469 | \f | |
a5ca2b75 JB |
1470 | /* Lisp functions for creating and removing buffer-local variables. */ |
1471 | ||
7921925c | 1472 | DEFUN ("make-variable-buffer-local", Fmake_variable_buffer_local, Smake_variable_buffer_local, |
8c1a1077 PJ |
1473 | 1, 1, "vMake Variable Buffer Local: ", |
1474 | doc: /* Make VARIABLE become buffer-local whenever it is set. | |
1475 | At any time, the value for the current buffer is in effect, | |
1476 | unless the variable has never been set in this buffer, | |
1477 | in which case the default value is in effect. | |
1478 | Note that binding the variable with `let', or setting it while | |
1479 | a `let'-style binding made in this buffer is in effect, | |
bfb96cb7 | 1480 | does not make the variable buffer-local. Return VARIABLE. |
8c1a1077 | 1481 | |
a9908653 RS |
1482 | In most cases it is better to use `make-local-variable', |
1483 | which makes a variable local in just one buffer. | |
1484 | ||
8c1a1077 PJ |
1485 | The function `default-value' gets the default value and `set-default' sets it. */) |
1486 | (variable) | |
d9c2a0f2 | 1487 | register Lisp_Object variable; |
7921925c | 1488 | { |
8d4afcac | 1489 | register Lisp_Object tem, valcontents, newval; |
7921925c | 1490 | |
b7826503 | 1491 | CHECK_SYMBOL (variable); |
6b61353c | 1492 | variable = indirect_variable (variable); |
7921925c | 1493 | |
f35d5bad | 1494 | valcontents = SYMBOL_VALUE (variable); |
d9c2a0f2 | 1495 | if (EQ (variable, Qnil) || EQ (variable, Qt) || KBOARD_OBJFWDP (valcontents)) |
d5db4077 | 1496 | error ("Symbol %s may not be buffer-local", SDATA (SYMBOL_NAME (variable))); |
7921925c | 1497 | |
e9ebc175 | 1498 | if (BUFFER_LOCAL_VALUEP (valcontents) || BUFFER_OBJFWDP (valcontents)) |
d9c2a0f2 | 1499 | return variable; |
e9ebc175 | 1500 | if (SOME_BUFFER_LOCAL_VALUEP (valcontents)) |
7921925c | 1501 | { |
f35d5bad | 1502 | XMISCTYPE (SYMBOL_VALUE (variable)) = Lisp_Misc_Buffer_Local_Value; |
d9c2a0f2 | 1503 | return variable; |
7921925c JB |
1504 | } |
1505 | if (EQ (valcontents, Qunbound)) | |
f35d5bad | 1506 | SET_SYMBOL_VALUE (variable, Qnil); |
d9c2a0f2 | 1507 | tem = Fcons (Qnil, Fsymbol_value (variable)); |
f3fbd155 | 1508 | XSETCAR (tem, tem); |
8d4afcac | 1509 | newval = allocate_misc (); |
324a6eef | 1510 | XMISCTYPE (newval) = Lisp_Misc_Buffer_Local_Value; |
f35d5bad | 1511 | XBUFFER_LOCAL_VALUE (newval)->realvalue = SYMBOL_VALUE (variable); |
b0c2d1c6 RS |
1512 | XBUFFER_LOCAL_VALUE (newval)->buffer = Fcurrent_buffer (); |
1513 | XBUFFER_LOCAL_VALUE (newval)->frame = Qnil; | |
42e975f0 | 1514 | XBUFFER_LOCAL_VALUE (newval)->found_for_buffer = 0; |
b0c2d1c6 RS |
1515 | XBUFFER_LOCAL_VALUE (newval)->found_for_frame = 0; |
1516 | XBUFFER_LOCAL_VALUE (newval)->check_frame = 0; | |
1517 | XBUFFER_LOCAL_VALUE (newval)->cdr = tem; | |
f35d5bad | 1518 | SET_SYMBOL_VALUE (variable, newval); |
d9c2a0f2 | 1519 | return variable; |
7921925c JB |
1520 | } |
1521 | ||
1522 | DEFUN ("make-local-variable", Fmake_local_variable, Smake_local_variable, | |
8c1a1077 PJ |
1523 | 1, 1, "vMake Local Variable: ", |
1524 | doc: /* Make VARIABLE have a separate value in the current buffer. | |
1525 | Other buffers will continue to share a common default value. | |
1526 | \(The buffer-local value of VARIABLE starts out as the same value | |
1527 | VARIABLE previously had. If VARIABLE was void, it remains void.\) | |
a9908653 | 1528 | Return VARIABLE. |
8c1a1077 PJ |
1529 | |
1530 | If the variable is already arranged to become local when set, | |
1531 | this function causes a local value to exist for this buffer, | |
1532 | just as setting the variable would do. | |
1533 | ||
1534 | This function returns VARIABLE, and therefore | |
1535 | (set (make-local-variable 'VARIABLE) VALUE-EXP) | |
1536 | works. | |
1537 | ||
a9908653 RS |
1538 | See also `make-variable-buffer-local'. |
1539 | ||
8c1a1077 | 1540 | Do not use `make-local-variable' to make a hook variable buffer-local. |
515f3f25 | 1541 | Instead, use `add-hook' and specify t for the LOCAL argument. */) |
8c1a1077 | 1542 | (variable) |
d9c2a0f2 | 1543 | register Lisp_Object variable; |
7921925c JB |
1544 | { |
1545 | register Lisp_Object tem, valcontents; | |
1546 | ||
b7826503 | 1547 | CHECK_SYMBOL (variable); |
6b61353c | 1548 | variable = indirect_variable (variable); |
7921925c | 1549 | |
f35d5bad | 1550 | valcontents = SYMBOL_VALUE (variable); |
d9c2a0f2 | 1551 | if (EQ (variable, Qnil) || EQ (variable, Qt) || KBOARD_OBJFWDP (valcontents)) |
d5db4077 | 1552 | error ("Symbol %s may not be buffer-local", SDATA (SYMBOL_NAME (variable))); |
7921925c | 1553 | |
e9ebc175 | 1554 | if (BUFFER_LOCAL_VALUEP (valcontents) || BUFFER_OBJFWDP (valcontents)) |
7921925c | 1555 | { |
d9c2a0f2 | 1556 | tem = Fboundp (variable); |
7403b5c8 | 1557 | |
7921925c JB |
1558 | /* Make sure the symbol has a local value in this particular buffer, |
1559 | by setting it to the same value it already has. */ | |
d9c2a0f2 EN |
1560 | Fset (variable, (EQ (tem, Qt) ? Fsymbol_value (variable) : Qunbound)); |
1561 | return variable; | |
7921925c | 1562 | } |
42e975f0 | 1563 | /* Make sure symbol is set up to hold per-buffer values. */ |
e9ebc175 | 1564 | if (!SOME_BUFFER_LOCAL_VALUEP (valcontents)) |
7921925c | 1565 | { |
8d4afcac | 1566 | Lisp_Object newval; |
7921925c | 1567 | tem = Fcons (Qnil, do_symval_forwarding (valcontents)); |
f3fbd155 | 1568 | XSETCAR (tem, tem); |
8d4afcac | 1569 | newval = allocate_misc (); |
324a6eef | 1570 | XMISCTYPE (newval) = Lisp_Misc_Some_Buffer_Local_Value; |
f35d5bad | 1571 | XBUFFER_LOCAL_VALUE (newval)->realvalue = SYMBOL_VALUE (variable); |
b0c2d1c6 RS |
1572 | XBUFFER_LOCAL_VALUE (newval)->buffer = Qnil; |
1573 | XBUFFER_LOCAL_VALUE (newval)->frame = Qnil; | |
1574 | XBUFFER_LOCAL_VALUE (newval)->found_for_buffer = 0; | |
1575 | XBUFFER_LOCAL_VALUE (newval)->found_for_frame = 0; | |
1576 | XBUFFER_LOCAL_VALUE (newval)->check_frame = 0; | |
1577 | XBUFFER_LOCAL_VALUE (newval)->cdr = tem; | |
3b8c0c70 | 1578 | SET_SYMBOL_VALUE (variable, newval); |
7921925c | 1579 | } |
42e975f0 | 1580 | /* Make sure this buffer has its own value of symbol. */ |
d9c2a0f2 | 1581 | tem = Fassq (variable, current_buffer->local_var_alist); |
a33ef3ab | 1582 | if (NILP (tem)) |
7921925c | 1583 | { |
a5d004a1 RS |
1584 | /* Swap out any local binding for some other buffer, and make |
1585 | sure the current value is permanently recorded, if it's the | |
1586 | default value. */ | |
d9c2a0f2 | 1587 | find_symbol_value (variable); |
a5d004a1 | 1588 | |
7921925c | 1589 | current_buffer->local_var_alist |
f35d5bad | 1590 | = Fcons (Fcons (variable, XCDR (XBUFFER_LOCAL_VALUE (SYMBOL_VALUE (variable))->cdr)), |
7921925c JB |
1591 | current_buffer->local_var_alist); |
1592 | ||
1593 | /* Make sure symbol does not think it is set up for this buffer; | |
42e975f0 | 1594 | force it to look once again for this buffer's value. */ |
7921925c | 1595 | { |
8d4afcac | 1596 | Lisp_Object *pvalbuf; |
a5d004a1 | 1597 | |
f35d5bad | 1598 | valcontents = SYMBOL_VALUE (variable); |
a5d004a1 | 1599 | |
b0c2d1c6 | 1600 | pvalbuf = &XBUFFER_LOCAL_VALUE (valcontents)->buffer; |
8d4afcac KH |
1601 | if (current_buffer == XBUFFER (*pvalbuf)) |
1602 | *pvalbuf = Qnil; | |
b0c2d1c6 | 1603 | XBUFFER_LOCAL_VALUE (valcontents)->found_for_buffer = 0; |
7921925c | 1604 | } |
7921925c | 1605 | } |
a5ca2b75 | 1606 | |
42e975f0 RS |
1607 | /* If the symbol forwards into a C variable, then load the binding |
1608 | for this buffer now. If C code modifies the variable before we | |
1609 | load the binding in, then that new value will clobber the default | |
1610 | binding the next time we unload it. */ | |
f35d5bad | 1611 | valcontents = XBUFFER_LOCAL_VALUE (SYMBOL_VALUE (variable))->realvalue; |
e9ebc175 | 1612 | if (INTFWDP (valcontents) || BOOLFWDP (valcontents) || OBJFWDP (valcontents)) |
f35d5bad | 1613 | swap_in_symval_forwarding (variable, SYMBOL_VALUE (variable)); |
a5ca2b75 | 1614 | |
d9c2a0f2 | 1615 | return variable; |
7921925c JB |
1616 | } |
1617 | ||
1618 | DEFUN ("kill-local-variable", Fkill_local_variable, Skill_local_variable, | |
8c1a1077 PJ |
1619 | 1, 1, "vKill Local Variable: ", |
1620 | doc: /* Make VARIABLE no longer have a separate value in the current buffer. | |
bfb96cb7 | 1621 | From now on the default value will apply in this buffer. Return VARIABLE. */) |
8c1a1077 | 1622 | (variable) |
d9c2a0f2 | 1623 | register Lisp_Object variable; |
7921925c JB |
1624 | { |
1625 | register Lisp_Object tem, valcontents; | |
1626 | ||
b7826503 | 1627 | CHECK_SYMBOL (variable); |
6b61353c | 1628 | variable = indirect_variable (variable); |
7921925c | 1629 | |
f35d5bad | 1630 | valcontents = SYMBOL_VALUE (variable); |
7921925c | 1631 | |
e9ebc175 | 1632 | if (BUFFER_OBJFWDP (valcontents)) |
7921925c | 1633 | { |
999b32fd | 1634 | int offset = XBUFFER_OBJFWD (valcontents)->offset; |
f6cd0527 | 1635 | int idx = PER_BUFFER_IDX (offset); |
7921925c | 1636 | |
999b32fd | 1637 | if (idx > 0) |
7921925c | 1638 | { |
f6cd0527 GM |
1639 | SET_PER_BUFFER_VALUE_P (current_buffer, idx, 0); |
1640 | PER_BUFFER_VALUE (current_buffer, offset) | |
1641 | = PER_BUFFER_DEFAULT (offset); | |
7921925c | 1642 | } |
d9c2a0f2 | 1643 | return variable; |
7921925c JB |
1644 | } |
1645 | ||
e9ebc175 KH |
1646 | if (!BUFFER_LOCAL_VALUEP (valcontents) |
1647 | && !SOME_BUFFER_LOCAL_VALUEP (valcontents)) | |
d9c2a0f2 | 1648 | return variable; |
7921925c | 1649 | |
42e975f0 | 1650 | /* Get rid of this buffer's alist element, if any. */ |
7921925c | 1651 | |
d9c2a0f2 | 1652 | tem = Fassq (variable, current_buffer->local_var_alist); |
a33ef3ab | 1653 | if (!NILP (tem)) |
8d4afcac KH |
1654 | current_buffer->local_var_alist |
1655 | = Fdelq (tem, current_buffer->local_var_alist); | |
7921925c | 1656 | |
42e975f0 RS |
1657 | /* If the symbol is set up with the current buffer's binding |
1658 | loaded, recompute its value. We have to do it now, or else | |
1659 | forwarded objects won't work right. */ | |
7921925c | 1660 | { |
999e6484 | 1661 | Lisp_Object *pvalbuf, buf; |
f35d5bad | 1662 | valcontents = SYMBOL_VALUE (variable); |
b0c2d1c6 | 1663 | pvalbuf = &XBUFFER_LOCAL_VALUE (valcontents)->buffer; |
999e6484 SM |
1664 | XSETBUFFER (buf, current_buffer); |
1665 | if (EQ (buf, *pvalbuf)) | |
79c83e03 KH |
1666 | { |
1667 | *pvalbuf = Qnil; | |
b0c2d1c6 | 1668 | XBUFFER_LOCAL_VALUE (valcontents)->found_for_buffer = 0; |
978dd578 | 1669 | find_symbol_value (variable); |
79c83e03 | 1670 | } |
7921925c JB |
1671 | } |
1672 | ||
d9c2a0f2 | 1673 | return variable; |
7921925c | 1674 | } |
62476adc | 1675 | |
b0c2d1c6 RS |
1676 | /* Lisp functions for creating and removing buffer-local variables. */ |
1677 | ||
1678 | DEFUN ("make-variable-frame-local", Fmake_variable_frame_local, Smake_variable_frame_local, | |
8c1a1077 PJ |
1679 | 1, 1, "vMake Variable Frame Local: ", |
1680 | doc: /* Enable VARIABLE to have frame-local bindings. | |
4d4d36b1 RS |
1681 | This does not create any frame-local bindings for VARIABLE, |
1682 | it just makes them possible. | |
1683 | ||
1684 | A frame-local binding is actually a frame parameter value. | |
1685 | If a frame F has a value for the frame parameter named VARIABLE, | |
1686 | that also acts as a frame-local binding for VARIABLE in F-- | |
1687 | provided this function has been called to enable VARIABLE | |
1688 | to have frame-local bindings at all. | |
1689 | ||
1690 | The only way to create a frame-local binding for VARIABLE in a frame | |
1691 | is to set the VARIABLE frame parameter of that frame. See | |
1692 | `modify-frame-parameters' for how to set frame parameters. | |
1693 | ||
1694 | Buffer-local bindings take precedence over frame-local bindings. */) | |
8c1a1077 | 1695 | (variable) |
b0c2d1c6 RS |
1696 | register Lisp_Object variable; |
1697 | { | |
1698 | register Lisp_Object tem, valcontents, newval; | |
1699 | ||
b7826503 | 1700 | CHECK_SYMBOL (variable); |
6b61353c | 1701 | variable = indirect_variable (variable); |
b0c2d1c6 | 1702 | |
f35d5bad | 1703 | valcontents = SYMBOL_VALUE (variable); |
b0c2d1c6 RS |
1704 | if (EQ (variable, Qnil) || EQ (variable, Qt) || KBOARD_OBJFWDP (valcontents) |
1705 | || BUFFER_OBJFWDP (valcontents)) | |
d5db4077 | 1706 | error ("Symbol %s may not be frame-local", SDATA (SYMBOL_NAME (variable))); |
b0c2d1c6 RS |
1707 | |
1708 | if (BUFFER_LOCAL_VALUEP (valcontents) | |
1709 | || SOME_BUFFER_LOCAL_VALUEP (valcontents)) | |
42e975f0 RS |
1710 | { |
1711 | XBUFFER_LOCAL_VALUE (valcontents)->check_frame = 1; | |
1712 | return variable; | |
1713 | } | |
b0c2d1c6 RS |
1714 | |
1715 | if (EQ (valcontents, Qunbound)) | |
f35d5bad | 1716 | SET_SYMBOL_VALUE (variable, Qnil); |
b0c2d1c6 | 1717 | tem = Fcons (Qnil, Fsymbol_value (variable)); |
f3fbd155 | 1718 | XSETCAR (tem, tem); |
b0c2d1c6 RS |
1719 | newval = allocate_misc (); |
1720 | XMISCTYPE (newval) = Lisp_Misc_Some_Buffer_Local_Value; | |
f35d5bad | 1721 | XBUFFER_LOCAL_VALUE (newval)->realvalue = SYMBOL_VALUE (variable); |
b0c2d1c6 RS |
1722 | XBUFFER_LOCAL_VALUE (newval)->buffer = Qnil; |
1723 | XBUFFER_LOCAL_VALUE (newval)->frame = Qnil; | |
1724 | XBUFFER_LOCAL_VALUE (newval)->found_for_buffer = 0; | |
1725 | XBUFFER_LOCAL_VALUE (newval)->found_for_frame = 0; | |
1726 | XBUFFER_LOCAL_VALUE (newval)->check_frame = 1; | |
1727 | XBUFFER_LOCAL_VALUE (newval)->cdr = tem; | |
f35d5bad | 1728 | SET_SYMBOL_VALUE (variable, newval); |
b0c2d1c6 RS |
1729 | return variable; |
1730 | } | |
1731 | ||
62476adc | 1732 | DEFUN ("local-variable-p", Flocal_variable_p, Slocal_variable_p, |
8c1a1077 PJ |
1733 | 1, 2, 0, |
1734 | doc: /* Non-nil if VARIABLE has a local binding in buffer BUFFER. | |
1735 | BUFFER defaults to the current buffer. */) | |
1736 | (variable, buffer) | |
d9c2a0f2 | 1737 | register Lisp_Object variable, buffer; |
62476adc RS |
1738 | { |
1739 | Lisp_Object valcontents; | |
c48ead86 KH |
1740 | register struct buffer *buf; |
1741 | ||
1742 | if (NILP (buffer)) | |
1743 | buf = current_buffer; | |
1744 | else | |
1745 | { | |
b7826503 | 1746 | CHECK_BUFFER (buffer); |
c48ead86 KH |
1747 | buf = XBUFFER (buffer); |
1748 | } | |
62476adc | 1749 | |
b7826503 | 1750 | CHECK_SYMBOL (variable); |
6b61353c | 1751 | variable = indirect_variable (variable); |
62476adc | 1752 | |
f35d5bad | 1753 | valcontents = SYMBOL_VALUE (variable); |
c48ead86 | 1754 | if (BUFFER_LOCAL_VALUEP (valcontents) |
1e5f16fa | 1755 | || SOME_BUFFER_LOCAL_VALUEP (valcontents)) |
c48ead86 KH |
1756 | { |
1757 | Lisp_Object tail, elt; | |
f35d5bad | 1758 | |
7539e11f | 1759 | for (tail = buf->local_var_alist; CONSP (tail); tail = XCDR (tail)) |
c48ead86 | 1760 | { |
7539e11f KR |
1761 | elt = XCAR (tail); |
1762 | if (EQ (variable, XCAR (elt))) | |
c48ead86 KH |
1763 | return Qt; |
1764 | } | |
1765 | } | |
1766 | if (BUFFER_OBJFWDP (valcontents)) | |
1767 | { | |
1768 | int offset = XBUFFER_OBJFWD (valcontents)->offset; | |
f6cd0527 GM |
1769 | int idx = PER_BUFFER_IDX (offset); |
1770 | if (idx == -1 || PER_BUFFER_VALUE_P (buf, idx)) | |
c48ead86 KH |
1771 | return Qt; |
1772 | } | |
1773 | return Qnil; | |
62476adc | 1774 | } |
f4f04cee RS |
1775 | |
1776 | DEFUN ("local-variable-if-set-p", Flocal_variable_if_set_p, Slocal_variable_if_set_p, | |
8c1a1077 | 1777 | 1, 2, 0, |
1dc5ba01 LT |
1778 | doc: /* Non-nil if VARIABLE will be local in buffer BUFFER when set there. |
1779 | More precisely, this means that setting the variable \(with `set' or`setq'), | |
1780 | while it does not have a `let'-style binding that was made in BUFFER, | |
1781 | will produce a buffer local binding. See Info node | |
1782 | `(elisp)Creating Buffer-Local'. | |
8c1a1077 PJ |
1783 | BUFFER defaults to the current buffer. */) |
1784 | (variable, buffer) | |
d9c2a0f2 | 1785 | register Lisp_Object variable, buffer; |
f4f04cee RS |
1786 | { |
1787 | Lisp_Object valcontents; | |
1788 | register struct buffer *buf; | |
1789 | ||
1790 | if (NILP (buffer)) | |
1791 | buf = current_buffer; | |
1792 | else | |
1793 | { | |
b7826503 | 1794 | CHECK_BUFFER (buffer); |
f4f04cee RS |
1795 | buf = XBUFFER (buffer); |
1796 | } | |
1797 | ||
b7826503 | 1798 | CHECK_SYMBOL (variable); |
6b61353c | 1799 | variable = indirect_variable (variable); |
f4f04cee | 1800 | |
f35d5bad | 1801 | valcontents = SYMBOL_VALUE (variable); |
f4f04cee RS |
1802 | |
1803 | /* This means that make-variable-buffer-local was done. */ | |
1804 | if (BUFFER_LOCAL_VALUEP (valcontents)) | |
1805 | return Qt; | |
1806 | /* All these slots become local if they are set. */ | |
1807 | if (BUFFER_OBJFWDP (valcontents)) | |
1808 | return Qt; | |
1809 | if (SOME_BUFFER_LOCAL_VALUEP (valcontents)) | |
1810 | { | |
1811 | Lisp_Object tail, elt; | |
7539e11f | 1812 | for (tail = buf->local_var_alist; CONSP (tail); tail = XCDR (tail)) |
f4f04cee | 1813 | { |
7539e11f KR |
1814 | elt = XCAR (tail); |
1815 | if (EQ (variable, XCAR (elt))) | |
f4f04cee RS |
1816 | return Qt; |
1817 | } | |
1818 | } | |
1819 | return Qnil; | |
1820 | } | |
6b61353c KH |
1821 | |
1822 | DEFUN ("variable-binding-locus", Fvariable_binding_locus, Svariable_binding_locus, | |
1823 | 1, 1, 0, | |
1824 | doc: /* Return a value indicating where VARIABLE's current binding comes from. | |
1825 | If the current binding is buffer-local, the value is the current buffer. | |
1826 | If the current binding is frame-local, the value is the selected frame. | |
1827 | If the current binding is global (the default), the value is nil. */) | |
1828 | (variable) | |
1829 | register Lisp_Object variable; | |
1830 | { | |
1831 | Lisp_Object valcontents; | |
1832 | ||
1833 | CHECK_SYMBOL (variable); | |
1834 | variable = indirect_variable (variable); | |
1835 | ||
1836 | /* Make sure the current binding is actually swapped in. */ | |
1837 | find_symbol_value (variable); | |
1838 | ||
1839 | valcontents = XSYMBOL (variable)->value; | |
1840 | ||
1841 | if (BUFFER_LOCAL_VALUEP (valcontents) | |
1842 | || SOME_BUFFER_LOCAL_VALUEP (valcontents) | |
1843 | || BUFFER_OBJFWDP (valcontents)) | |
1844 | { | |
1845 | /* For a local variable, record both the symbol and which | |
1846 | buffer's or frame's value we are saving. */ | |
1847 | if (!NILP (Flocal_variable_p (variable, Qnil))) | |
1848 | return Fcurrent_buffer (); | |
1849 | else if (!BUFFER_OBJFWDP (valcontents) | |
1850 | && XBUFFER_LOCAL_VALUE (valcontents)->found_for_frame) | |
1851 | return XBUFFER_LOCAL_VALUE (valcontents)->frame; | |
1852 | } | |
1853 | ||
1854 | return Qnil; | |
1855 | } | |
7921925c | 1856 | \f |
ffd56f97 JB |
1857 | /* Find the function at the end of a chain of symbol function indirections. */ |
1858 | ||
1859 | /* If OBJECT is a symbol, find the end of its function chain and | |
1860 | return the value found there. If OBJECT is not a symbol, just | |
1861 | return it. If there is a cycle in the function chain, signal a | |
1862 | cyclic-function-indirection error. | |
1863 | ||
1864 | This is like Findirect_function, except that it doesn't signal an | |
1865 | error if the chain ends up unbound. */ | |
1866 | Lisp_Object | |
a2932990 | 1867 | indirect_function (object) |
62476adc | 1868 | register Lisp_Object object; |
ffd56f97 | 1869 | { |
eb8c3be9 | 1870 | Lisp_Object tortoise, hare; |
ffd56f97 | 1871 | |
eb8c3be9 | 1872 | hare = tortoise = object; |
ffd56f97 JB |
1873 | |
1874 | for (;;) | |
1875 | { | |
e9ebc175 | 1876 | if (!SYMBOLP (hare) || EQ (hare, Qunbound)) |
ffd56f97 JB |
1877 | break; |
1878 | hare = XSYMBOL (hare)->function; | |
e9ebc175 | 1879 | if (!SYMBOLP (hare) || EQ (hare, Qunbound)) |
ffd56f97 JB |
1880 | break; |
1881 | hare = XSYMBOL (hare)->function; | |
1882 | ||
eb8c3be9 | 1883 | tortoise = XSYMBOL (tortoise)->function; |
ffd56f97 | 1884 | |
eb8c3be9 | 1885 | if (EQ (hare, tortoise)) |
740ef0b5 | 1886 | xsignal1 (Qcyclic_function_indirection, object); |
ffd56f97 JB |
1887 | } |
1888 | ||
1889 | return hare; | |
1890 | } | |
1891 | ||
a7f96a35 | 1892 | DEFUN ("indirect-function", Findirect_function, Sindirect_function, 1, 2, 0, |
8c1a1077 | 1893 | doc: /* Return the function at the end of OBJECT's function chain. |
0ddb0ae8 TTN |
1894 | If OBJECT is not a symbol, just return it. Otherwise, follow all |
1895 | function indirections to find the final function binding and return it. | |
1896 | If the final symbol in the chain is unbound, signal a void-function error. | |
1897 | Optional arg NOERROR non-nil means to return nil instead of signalling. | |
8c1a1077 PJ |
1898 | Signal a cyclic-function-indirection error if there is a loop in the |
1899 | function chain of symbols. */) | |
0ddb0ae8 | 1900 | (object, noerror) |
8c1a1077 | 1901 | register Lisp_Object object; |
0ddb0ae8 | 1902 | Lisp_Object noerror; |
ffd56f97 JB |
1903 | { |
1904 | Lisp_Object result; | |
1905 | ||
64de53d8 KS |
1906 | /* Optimize for no indirection. */ |
1907 | result = object; | |
1908 | if (SYMBOLP (result) && !EQ (result, Qunbound) | |
1909 | && (result = XSYMBOL (result)->function, SYMBOLP (result))) | |
1910 | result = indirect_function (result); | |
1911 | if (!EQ (result, Qunbound)) | |
1912 | return result; | |
ffd56f97 | 1913 | |
64de53d8 | 1914 | if (NILP (noerror)) |
740ef0b5 | 1915 | xsignal1 (Qvoid_function, object); |
ffd56f97 | 1916 | |
64de53d8 | 1917 | return Qnil; |
ffd56f97 JB |
1918 | } |
1919 | \f | |
7921925c JB |
1920 | /* Extract and set vector and string elements */ |
1921 | ||
1922 | DEFUN ("aref", Faref, Saref, 2, 2, 0, | |
8c1a1077 PJ |
1923 | doc: /* Return the element of ARRAY at index IDX. |
1924 | ARRAY may be a vector, a string, a char-table, a bool-vector, | |
1925 | or a byte-code object. IDX starts at 0. */) | |
1926 | (array, idx) | |
7921925c JB |
1927 | register Lisp_Object array; |
1928 | Lisp_Object idx; | |
1929 | { | |
1930 | register int idxval; | |
1931 | ||
b7826503 | 1932 | CHECK_NUMBER (idx); |
7921925c | 1933 | idxval = XINT (idx); |
e9ebc175 | 1934 | if (STRINGP (array)) |
7921925c | 1935 | { |
25638b07 RS |
1936 | int c, idxval_byte; |
1937 | ||
d5db4077 | 1938 | if (idxval < 0 || idxval >= SCHARS (array)) |
c24e4efe | 1939 | args_out_of_range (array, idx); |
25638b07 | 1940 | if (! STRING_MULTIBYTE (array)) |
d5db4077 | 1941 | return make_number ((unsigned char) SREF (array, idxval)); |
25638b07 RS |
1942 | idxval_byte = string_char_to_byte (array, idxval); |
1943 | ||
29f44a37 | 1944 | c = STRING_CHAR (SDATA (array) + idxval_byte, |
d5db4077 | 1945 | SBYTES (array) - idxval_byte); |
25638b07 | 1946 | return make_number (c); |
7921925c | 1947 | } |
4d276982 RS |
1948 | else if (BOOL_VECTOR_P (array)) |
1949 | { | |
1950 | int val; | |
4d276982 RS |
1951 | |
1952 | if (idxval < 0 || idxval >= XBOOL_VECTOR (array)->size) | |
1953 | args_out_of_range (array, idx); | |
1954 | ||
b9ed2177 AS |
1955 | val = (unsigned char) XBOOL_VECTOR (array)->data[idxval / BOOL_VECTOR_BITS_PER_CHAR]; |
1956 | return (val & (1 << (idxval % BOOL_VECTOR_BITS_PER_CHAR)) ? Qt : Qnil); | |
4d276982 RS |
1957 | } |
1958 | else if (CHAR_TABLE_P (array)) | |
1959 | { | |
e6e1f521 KH |
1960 | CHECK_CHARACTER (idx); |
1961 | return CHAR_TABLE_REF (array, idxval); | |
4d276982 | 1962 | } |
7921925c | 1963 | else |
c24e4efe | 1964 | { |
6bbd7a29 | 1965 | int size = 0; |
7f358972 RS |
1966 | if (VECTORP (array)) |
1967 | size = XVECTOR (array)->size; | |
1968 | else if (COMPILEDP (array)) | |
1969 | size = XVECTOR (array)->size & PSEUDOVECTOR_SIZE_MASK; | |
1970 | else | |
1971 | wrong_type_argument (Qarrayp, array); | |
1972 | ||
1973 | if (idxval < 0 || idxval >= size) | |
c24e4efe KH |
1974 | args_out_of_range (array, idx); |
1975 | return XVECTOR (array)->contents[idxval]; | |
1976 | } | |
7921925c JB |
1977 | } |
1978 | ||
1979 | DEFUN ("aset", Faset, Saset, 3, 3, 0, | |
8c1a1077 | 1980 | doc: /* Store into the element of ARRAY at index IDX the value NEWELT. |
bfb96cb7 FP |
1981 | Return NEWELT. ARRAY may be a vector, a string, a char-table or a |
1982 | bool-vector. IDX starts at 0. */) | |
8c1a1077 | 1983 | (array, idx, newelt) |
7921925c JB |
1984 | register Lisp_Object array; |
1985 | Lisp_Object idx, newelt; | |
1986 | { | |
1987 | register int idxval; | |
1988 | ||
b7826503 | 1989 | CHECK_NUMBER (idx); |
7921925c | 1990 | idxval = XINT (idx); |
0c64a8cd | 1991 | CHECK_ARRAY (array, Qarrayp); |
7921925c JB |
1992 | CHECK_IMPURE (array); |
1993 | ||
e9ebc175 | 1994 | if (VECTORP (array)) |
c24e4efe KH |
1995 | { |
1996 | if (idxval < 0 || idxval >= XVECTOR (array)->size) | |
1997 | args_out_of_range (array, idx); | |
1998 | XVECTOR (array)->contents[idxval] = newelt; | |
1999 | } | |
4d276982 RS |
2000 | else if (BOOL_VECTOR_P (array)) |
2001 | { | |
2002 | int val; | |
4d276982 RS |
2003 | |
2004 | if (idxval < 0 || idxval >= XBOOL_VECTOR (array)->size) | |
2005 | args_out_of_range (array, idx); | |
2006 | ||
b9ed2177 | 2007 | val = (unsigned char) XBOOL_VECTOR (array)->data[idxval / BOOL_VECTOR_BITS_PER_CHAR]; |
4d276982 RS |
2008 | |
2009 | if (! NILP (newelt)) | |
b9ed2177 | 2010 | val |= 1 << (idxval % BOOL_VECTOR_BITS_PER_CHAR); |
4d276982 | 2011 | else |
b9ed2177 AS |
2012 | val &= ~(1 << (idxval % BOOL_VECTOR_BITS_PER_CHAR)); |
2013 | XBOOL_VECTOR (array)->data[idxval / BOOL_VECTOR_BITS_PER_CHAR] = val; | |
4d276982 RS |
2014 | } |
2015 | else if (CHAR_TABLE_P (array)) | |
2016 | { | |
e6e1f521 KH |
2017 | CHECK_CHARACTER (idx); |
2018 | CHAR_TABLE_SET (array, idxval, newelt); | |
4d276982 | 2019 | } |
25638b07 RS |
2020 | else if (STRING_MULTIBYTE (array)) |
2021 | { | |
c6464167 | 2022 | int idxval_byte, prev_bytes, new_bytes, nbytes; |
3c9de1af | 2023 | unsigned char workbuf[MAX_MULTIBYTE_LENGTH], *p0 = workbuf, *p1; |
25638b07 | 2024 | |
d5db4077 | 2025 | if (idxval < 0 || idxval >= SCHARS (array)) |
25638b07 | 2026 | args_out_of_range (array, idx); |
d9130605 | 2027 | CHECK_CHARACTER (newelt); |
25638b07 | 2028 | |
c6464167 MB |
2029 | nbytes = SBYTES (array); |
2030 | ||
25638b07 | 2031 | idxval_byte = string_char_to_byte (array, idxval); |
29f44a37 | 2032 | p1 = SDATA (array) + idxval_byte; |
3c9de1af KH |
2033 | PARSE_MULTIBYTE_SEQ (p1, nbytes - idxval_byte, prev_bytes); |
2034 | new_bytes = CHAR_STRING (XINT (newelt), p0); | |
2035 | if (prev_bytes != new_bytes) | |
2036 | { | |
2037 | /* We must relocate the string data. */ | |
d5db4077 | 2038 | int nchars = SCHARS (array); |
3c9de1af | 2039 | unsigned char *str; |
f1a87317 | 2040 | USE_SAFE_ALLOCA; |
3c9de1af | 2041 | |
f1a87317 | 2042 | SAFE_ALLOCA (str, unsigned char *, nbytes); |
d5db4077 | 2043 | bcopy (SDATA (array), str, nbytes); |
3c9de1af KH |
2044 | allocate_string_data (XSTRING (array), nchars, |
2045 | nbytes + new_bytes - prev_bytes); | |
d5db4077 KR |
2046 | bcopy (str, SDATA (array), idxval_byte); |
2047 | p1 = SDATA (array) + idxval_byte; | |
3c9de1af KH |
2048 | bcopy (str + idxval_byte + prev_bytes, p1 + new_bytes, |
2049 | nbytes - (idxval_byte + prev_bytes)); | |
233f3db6 | 2050 | SAFE_FREE (); |
3c9de1af KH |
2051 | clear_string_char_byte_cache (); |
2052 | } | |
2053 | while (new_bytes--) | |
2054 | *p1++ = *p0++; | |
25638b07 | 2055 | } |
7921925c JB |
2056 | else |
2057 | { | |
d5db4077 | 2058 | if (idxval < 0 || idxval >= SCHARS (array)) |
c24e4efe | 2059 | args_out_of_range (array, idx); |
b7826503 | 2060 | CHECK_NUMBER (newelt); |
3c9de1af | 2061 | |
476e47ca KH |
2062 | if (XINT (newelt) >= 0 && ! SINGLE_BYTE_CHAR_P (XINT (newelt))) |
2063 | args_out_of_range (array, newelt); | |
2064 | SSET (array, idxval, XINT (newelt)); | |
7921925c JB |
2065 | } |
2066 | ||
2067 | return newelt; | |
2068 | } | |
7921925c JB |
2069 | \f |
2070 | /* Arithmetic functions */ | |
2071 | ||
2072 | enum comparison { equal, notequal, less, grtr, less_or_equal, grtr_or_equal }; | |
2073 | ||
2074 | Lisp_Object | |
2075 | arithcompare (num1, num2, comparison) | |
2076 | Lisp_Object num1, num2; | |
2077 | enum comparison comparison; | |
2078 | { | |
6bbd7a29 | 2079 | double f1 = 0, f2 = 0; |
7921925c JB |
2080 | int floatp = 0; |
2081 | ||
b7826503 PJ |
2082 | CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (num1); |
2083 | CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (num2); | |
7921925c | 2084 | |
e9ebc175 | 2085 | if (FLOATP (num1) || FLOATP (num2)) |
7921925c JB |
2086 | { |
2087 | floatp = 1; | |
7539e11f KR |
2088 | f1 = (FLOATP (num1)) ? XFLOAT_DATA (num1) : XINT (num1); |
2089 | f2 = (FLOATP (num2)) ? XFLOAT_DATA (num2) : XINT (num2); | |
7921925c | 2090 | } |
7921925c JB |
2091 | |
2092 | switch (comparison) | |
2093 | { | |
2094 | case equal: | |
2095 | if (floatp ? f1 == f2 : XINT (num1) == XINT (num2)) | |
2096 | return Qt; | |
2097 | return Qnil; | |
2098 | ||
2099 | case notequal: | |
2100 | if (floatp ? f1 != f2 : XINT (num1) != XINT (num2)) | |
2101 | return Qt; | |
2102 | return Qnil; | |
2103 | ||
2104 | case less: | |
2105 | if (floatp ? f1 < f2 : XINT (num1) < XINT (num2)) | |
2106 | return Qt; | |
2107 | return Qnil; | |
2108 | ||
2109 | case less_or_equal: | |
2110 | if (floatp ? f1 <= f2 : XINT (num1) <= XINT (num2)) | |
2111 | return Qt; | |
2112 | return Qnil; | |
2113 | ||
2114 | case grtr: | |
2115 | if (floatp ? f1 > f2 : XINT (num1) > XINT (num2)) | |
2116 | return Qt; | |
2117 | return Qnil; | |
2118 | ||
2119 | case grtr_or_equal: | |
2120 | if (floatp ? f1 >= f2 : XINT (num1) >= XINT (num2)) | |
2121 | return Qt; | |
2122 | return Qnil; | |
25e40a4b JB |
2123 | |
2124 | default: | |
2125 | abort (); | |
7921925c JB |
2126 | } |
2127 | } | |
2128 | ||
2129 | DEFUN ("=", Feqlsign, Seqlsign, 2, 2, 0, | |
8c1a1077 PJ |
2130 | doc: /* Return t if two args, both numbers or markers, are equal. */) |
2131 | (num1, num2) | |
7921925c JB |
2132 | register Lisp_Object num1, num2; |
2133 | { | |
2134 | return arithcompare (num1, num2, equal); | |
2135 | } | |
2136 | ||
2137 | DEFUN ("<", Flss, Slss, 2, 2, 0, | |
8c1a1077 PJ |
2138 | doc: /* Return t if first arg is less than second arg. Both must be numbers or markers. */) |
2139 | (num1, num2) | |
7921925c JB |
2140 | register Lisp_Object num1, num2; |
2141 | { | |
2142 | return arithcompare (num1, num2, less); | |
2143 | } | |
2144 | ||
2145 | DEFUN (">", Fgtr, Sgtr, 2, 2, 0, | |
8c1a1077 PJ |
2146 | doc: /* Return t if first arg is greater than second arg. Both must be numbers or markers. */) |
2147 | (num1, num2) | |
7921925c JB |
2148 | register Lisp_Object num1, num2; |
2149 | { | |
2150 | return arithcompare (num1, num2, grtr); | |
2151 | } | |
2152 | ||
2153 | DEFUN ("<=", Fleq, Sleq, 2, 2, 0, | |
8c1a1077 PJ |
2154 | doc: /* Return t if first arg is less than or equal to second arg. |
2155 | Both must be numbers or markers. */) | |
2156 | (num1, num2) | |
7921925c JB |
2157 | register Lisp_Object num1, num2; |
2158 | { | |
2159 | return arithcompare (num1, num2, less_or_equal); | |
2160 | } | |
2161 | ||
2162 | DEFUN (">=", Fgeq, Sgeq, 2, 2, 0, | |
8c1a1077 PJ |
2163 | doc: /* Return t if first arg is greater than or equal to second arg. |
2164 | Both must be numbers or markers. */) | |
2165 | (num1, num2) | |
7921925c JB |
2166 | register Lisp_Object num1, num2; |
2167 | { | |
2168 | return arithcompare (num1, num2, grtr_or_equal); | |
2169 | } | |
2170 | ||
2171 | DEFUN ("/=", Fneq, Sneq, 2, 2, 0, | |
8c1a1077 PJ |
2172 | doc: /* Return t if first arg is not equal to second arg. Both must be numbers or markers. */) |
2173 | (num1, num2) | |
7921925c JB |
2174 | register Lisp_Object num1, num2; |
2175 | { | |
2176 | return arithcompare (num1, num2, notequal); | |
2177 | } | |
2178 | ||
8c1a1077 PJ |
2179 | DEFUN ("zerop", Fzerop, Szerop, 1, 1, 0, |
2180 | doc: /* Return t if NUMBER is zero. */) | |
2181 | (number) | |
d9c2a0f2 | 2182 | register Lisp_Object number; |
7921925c | 2183 | { |
b7826503 | 2184 | CHECK_NUMBER_OR_FLOAT (number); |
7921925c | 2185 | |
d9c2a0f2 | 2186 | if (FLOATP (number)) |
7921925c | 2187 | { |
7539e11f | 2188 | if (XFLOAT_DATA (number) == 0.0) |
7921925c JB |
2189 | return Qt; |
2190 | return Qnil; | |
2191 | } | |
7921925c | 2192 | |
d9c2a0f2 | 2193 | if (!XINT (number)) |
7921925c JB |
2194 | return Qt; |
2195 | return Qnil; | |
2196 | } | |
2197 | \f | |
34f4f6c6 | 2198 | /* Convert between long values and pairs of Lisp integers. */ |
51cf3e31 JB |
2199 | |
2200 | Lisp_Object | |
2201 | long_to_cons (i) | |
2202 | unsigned long i; | |
2203 | { | |
9bc7166b | 2204 | unsigned long top = i >> 16; |
51cf3e31 JB |
2205 | unsigned int bot = i & 0xFFFF; |
2206 | if (top == 0) | |
2207 | return make_number (bot); | |
b42cfa11 | 2208 | if (top == (unsigned long)-1 >> 16) |
51cf3e31 JB |
2209 | return Fcons (make_number (-1), make_number (bot)); |
2210 | return Fcons (make_number (top), make_number (bot)); | |
2211 | } | |
2212 | ||
2213 | unsigned long | |
2214 | cons_to_long (c) | |
2215 | Lisp_Object c; | |
2216 | { | |
878a80cc | 2217 | Lisp_Object top, bot; |
51cf3e31 JB |
2218 | if (INTEGERP (c)) |
2219 | return XINT (c); | |
7539e11f KR |
2220 | top = XCAR (c); |
2221 | bot = XCDR (c); | |
51cf3e31 | 2222 | if (CONSP (bot)) |
7539e11f | 2223 | bot = XCAR (bot); |
51cf3e31 JB |
2224 | return ((XINT (top) << 16) | XINT (bot)); |
2225 | } | |
2226 | \f | |
f2980264 | 2227 | DEFUN ("number-to-string", Fnumber_to_string, Snumber_to_string, 1, 1, 0, |
bfb96cb7 | 2228 | doc: /* Return the decimal representation of NUMBER as a string. |
8c1a1077 PJ |
2229 | Uses a minus sign if negative. |
2230 | NUMBER may be an integer or a floating point number. */) | |
2231 | (number) | |
d9c2a0f2 | 2232 | Lisp_Object number; |
7921925c | 2233 | { |
6030ce64 | 2234 | char buffer[VALBITS]; |
7921925c | 2235 | |
b7826503 | 2236 | CHECK_NUMBER_OR_FLOAT (number); |
7921925c | 2237 | |
d9c2a0f2 | 2238 | if (FLOATP (number)) |
7921925c JB |
2239 | { |
2240 | char pigbuf[350]; /* see comments in float_to_string */ | |
2241 | ||
7539e11f | 2242 | float_to_string (pigbuf, XFLOAT_DATA (number)); |
7403b5c8 | 2243 | return build_string (pigbuf); |
7921925c | 2244 | } |
7921925c | 2245 | |
e6c82a8d | 2246 | if (sizeof (int) == sizeof (EMACS_INT)) |
d9c2a0f2 | 2247 | sprintf (buffer, "%d", XINT (number)); |
e6c82a8d | 2248 | else if (sizeof (long) == sizeof (EMACS_INT)) |
dd8daec5 | 2249 | sprintf (buffer, "%ld", (long) XINT (number)); |
e6c82a8d RS |
2250 | else |
2251 | abort (); | |
7921925c JB |
2252 | return build_string (buffer); |
2253 | } | |
2254 | ||
3883fbeb RS |
2255 | INLINE static int |
2256 | digit_to_number (character, base) | |
2257 | int character, base; | |
2258 | { | |
2259 | int digit; | |
2260 | ||
2261 | if (character >= '0' && character <= '9') | |
2262 | digit = character - '0'; | |
2263 | else if (character >= 'a' && character <= 'z') | |
2264 | digit = character - 'a' + 10; | |
2265 | else if (character >= 'A' && character <= 'Z') | |
2266 | digit = character - 'A' + 10; | |
2267 | else | |
2268 | return -1; | |
2269 | ||
2270 | if (digit >= base) | |
2271 | return -1; | |
2272 | else | |
2273 | return digit; | |
bfb96cb7 | 2274 | } |
3883fbeb RS |
2275 | |
2276 | DEFUN ("string-to-number", Fstring_to_number, Sstring_to_number, 1, 2, 0, | |
558ee900 | 2277 | doc: /* Parse STRING as a decimal number and return the number. |
8c1a1077 PJ |
2278 | This parses both integers and floating point numbers. |
2279 | It ignores leading spaces and tabs. | |
2280 | ||
2281 | If BASE, interpret STRING as a number in that base. If BASE isn't | |
2282 | present, base 10 is used. BASE must be between 2 and 16 (inclusive). | |
2283 | If the base used is not 10, floating point is not recognized. */) | |
2284 | (string, base) | |
3883fbeb | 2285 | register Lisp_Object string, base; |
7921925c | 2286 | { |
3883fbeb | 2287 | register unsigned char *p; |
342858a5 GM |
2288 | register int b; |
2289 | int sign = 1; | |
2290 | Lisp_Object val; | |
25e40a4b | 2291 | |
b7826503 | 2292 | CHECK_STRING (string); |
7921925c | 2293 | |
3883fbeb RS |
2294 | if (NILP (base)) |
2295 | b = 10; | |
2296 | else | |
2297 | { | |
b7826503 | 2298 | CHECK_NUMBER (base); |
3883fbeb RS |
2299 | b = XINT (base); |
2300 | if (b < 2 || b > 16) | |
740ef0b5 | 2301 | xsignal1 (Qargs_out_of_range, base); |
3883fbeb RS |
2302 | } |
2303 | ||
25e40a4b JB |
2304 | /* Skip any whitespace at the front of the number. Some versions of |
2305 | atoi do this anyway, so we might as well make Emacs lisp consistent. */ | |
d5db4077 | 2306 | p = SDATA (string); |
0a3e4d65 | 2307 | while (*p == ' ' || *p == '\t') |
25e40a4b JB |
2308 | p++; |
2309 | ||
3883fbeb RS |
2310 | if (*p == '-') |
2311 | { | |
342858a5 | 2312 | sign = -1; |
3883fbeb RS |
2313 | p++; |
2314 | } | |
2315 | else if (*p == '+') | |
2316 | p++; | |
bfb96cb7 | 2317 | |
8e36ae7f | 2318 | if (isfloat_string (p) && b == 10) |
342858a5 GM |
2319 | val = make_float (sign * atof (p)); |
2320 | else | |
3883fbeb | 2321 | { |
342858a5 GM |
2322 | double v = 0; |
2323 | ||
2324 | while (1) | |
2325 | { | |
2326 | int digit = digit_to_number (*p++, b); | |
2327 | if (digit < 0) | |
2328 | break; | |
2329 | v = v * b + digit; | |
2330 | } | |
2331 | ||
cb938d46 | 2332 | val = make_fixnum_or_float (sign * v); |
3883fbeb | 2333 | } |
342858a5 GM |
2334 | |
2335 | return val; | |
7921925c | 2336 | } |
3883fbeb | 2337 | |
7403b5c8 | 2338 | \f |
7921925c | 2339 | enum arithop |
7a283f36 GM |
2340 | { |
2341 | Aadd, | |
2342 | Asub, | |
2343 | Amult, | |
2344 | Adiv, | |
2345 | Alogand, | |
2346 | Alogior, | |
2347 | Alogxor, | |
2348 | Amax, | |
2349 | Amin | |
2350 | }; | |
2351 | ||
2352 | static Lisp_Object float_arith_driver P_ ((double, int, enum arithop, | |
2353 | int, Lisp_Object *)); | |
ad8d56b9 | 2354 | extern Lisp_Object fmod_float (); |
b06faa91 | 2355 | |
7921925c | 2356 | Lisp_Object |
87fbf902 | 2357 | arith_driver (code, nargs, args) |
7921925c JB |
2358 | enum arithop code; |
2359 | int nargs; | |
2360 | register Lisp_Object *args; | |
2361 | { | |
2362 | register Lisp_Object val; | |
2363 | register int argnum; | |
7a283f36 | 2364 | register EMACS_INT accum = 0; |
5260234d | 2365 | register EMACS_INT next; |
7921925c | 2366 | |
0220c518 | 2367 | switch (SWITCH_ENUM_CAST (code)) |
7921925c JB |
2368 | { |
2369 | case Alogior: | |
2370 | case Alogxor: | |
2371 | case Aadd: | |
2372 | case Asub: | |
7a283f36 GM |
2373 | accum = 0; |
2374 | break; | |
7921925c | 2375 | case Amult: |
7a283f36 GM |
2376 | accum = 1; |
2377 | break; | |
7921925c | 2378 | case Alogand: |
7a283f36 GM |
2379 | accum = -1; |
2380 | break; | |
2381 | default: | |
2382 | break; | |
7921925c JB |
2383 | } |
2384 | ||
2385 | for (argnum = 0; argnum < nargs; argnum++) | |
2386 | { | |
7a283f36 GM |
2387 | /* Using args[argnum] as argument to CHECK_NUMBER_... */ |
2388 | val = args[argnum]; | |
b7826503 | 2389 | CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (val); |
7921925c | 2390 | |
7a283f36 GM |
2391 | if (FLOATP (val)) |
2392 | return float_arith_driver ((double) accum, argnum, code, | |
2393 | nargs, args); | |
2394 | args[argnum] = val; | |
7921925c | 2395 | next = XINT (args[argnum]); |
0220c518 | 2396 | switch (SWITCH_ENUM_CAST (code)) |
7921925c | 2397 | { |
7a283f36 GM |
2398 | case Aadd: |
2399 | accum += next; | |
2400 | break; | |
7921925c | 2401 | case Asub: |
e64981da | 2402 | accum = argnum ? accum - next : nargs == 1 ? - next : next; |
7921925c | 2403 | break; |
7a283f36 GM |
2404 | case Amult: |
2405 | accum *= next; | |
2406 | break; | |
7921925c | 2407 | case Adiv: |
7a283f36 GM |
2408 | if (!argnum) |
2409 | accum = next; | |
87fbf902 RS |
2410 | else |
2411 | { | |
2412 | if (next == 0) | |
740ef0b5 | 2413 | xsignal0 (Qarith_error); |
87fbf902 RS |
2414 | accum /= next; |
2415 | } | |
7921925c | 2416 | break; |
7a283f36 GM |
2417 | case Alogand: |
2418 | accum &= next; | |
2419 | break; | |
2420 | case Alogior: | |
2421 | accum |= next; | |
2422 | break; | |
2423 | case Alogxor: | |
2424 | accum ^= next; | |
2425 | break; | |
2426 | case Amax: | |
2427 | if (!argnum || next > accum) | |
2428 | accum = next; | |
2429 | break; | |
2430 | case Amin: | |
2431 | if (!argnum || next < accum) | |
2432 | accum = next; | |
2433 | break; | |
7921925c JB |
2434 | } |
2435 | } | |
2436 | ||
f187f1f7 | 2437 | XSETINT (val, accum); |
7921925c JB |
2438 | return val; |
2439 | } | |
2440 | ||
1a2f2d33 KH |
2441 | #undef isnan |
2442 | #define isnan(x) ((x) != (x)) | |
2443 | ||
7a283f36 | 2444 | static Lisp_Object |
7921925c JB |
2445 | float_arith_driver (accum, argnum, code, nargs, args) |
2446 | double accum; | |
2447 | register int argnum; | |
2448 | enum arithop code; | |
2449 | int nargs; | |
2450 | register Lisp_Object *args; | |
2451 | { | |
2452 | register Lisp_Object val; | |
2453 | double next; | |
7403b5c8 | 2454 | |
7921925c JB |
2455 | for (; argnum < nargs; argnum++) |
2456 | { | |
2457 | val = args[argnum]; /* using args[argnum] as argument to CHECK_NUMBER_... */ | |
b7826503 | 2458 | CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (val); |
7921925c | 2459 | |
e9ebc175 | 2460 | if (FLOATP (val)) |
7921925c | 2461 | { |
7539e11f | 2462 | next = XFLOAT_DATA (val); |
7921925c JB |
2463 | } |
2464 | else | |
2465 | { | |
2466 | args[argnum] = val; /* runs into a compiler bug. */ | |
2467 | next = XINT (args[argnum]); | |
2468 | } | |
0220c518 | 2469 | switch (SWITCH_ENUM_CAST (code)) |
7921925c JB |
2470 | { |
2471 | case Aadd: | |
2472 | accum += next; | |
2473 | break; | |
2474 | case Asub: | |
e64981da | 2475 | accum = argnum ? accum - next : nargs == 1 ? - next : next; |
7921925c JB |
2476 | break; |
2477 | case Amult: | |
2478 | accum *= next; | |
2479 | break; | |
2480 | case Adiv: | |
2481 | if (!argnum) | |
2482 | accum = next; | |
2483 | else | |
87fbf902 | 2484 | { |
ad8d56b9 | 2485 | if (! IEEE_FLOATING_POINT && next == 0) |
740ef0b5 | 2486 | xsignal0 (Qarith_error); |
87fbf902 RS |
2487 | accum /= next; |
2488 | } | |
7921925c JB |
2489 | break; |
2490 | case Alogand: | |
2491 | case Alogior: | |
2492 | case Alogxor: | |
2493 | return wrong_type_argument (Qinteger_or_marker_p, val); | |
2494 | case Amax: | |
1a2f2d33 | 2495 | if (!argnum || isnan (next) || next > accum) |
7921925c JB |
2496 | accum = next; |
2497 | break; | |
2498 | case Amin: | |
1a2f2d33 | 2499 | if (!argnum || isnan (next) || next < accum) |
7921925c JB |
2500 | accum = next; |
2501 | break; | |
2502 | } | |
2503 | } | |
2504 | ||
2505 | return make_float (accum); | |
2506 | } | |
cc94f3b2 | 2507 | |
7921925c JB |
2508 | |
2509 | DEFUN ("+", Fplus, Splus, 0, MANY, 0, | |
8c1a1077 PJ |
2510 | doc: /* Return sum of any number of arguments, which are numbers or markers. |
2511 | usage: (+ &rest NUMBERS-OR-MARKERS) */) | |
2512 | (nargs, args) | |
7921925c JB |
2513 | int nargs; |
2514 | Lisp_Object *args; | |
2515 | { | |
2516 | return arith_driver (Aadd, nargs, args); | |
2517 | } | |
2518 | ||
2519 | DEFUN ("-", Fminus, Sminus, 0, MANY, 0, | |
558ee900 | 2520 | doc: /* Negate number or subtract numbers or markers and return the result. |
8c1a1077 | 2521 | With one arg, negates it. With more than one arg, |
f44fba9e | 2522 | subtracts all but the first from the first. |
8c1a1077 PJ |
2523 | usage: (- &optional NUMBER-OR-MARKER &rest MORE-NUMBERS-OR-MARKERS) */) |
2524 | (nargs, args) | |
7921925c JB |
2525 | int nargs; |
2526 | Lisp_Object *args; | |
2527 | { | |
2528 | return arith_driver (Asub, nargs, args); | |
2529 | } | |
2530 | ||
2531 | DEFUN ("*", Ftimes, Stimes, 0, MANY, 0, | |
be24eadf | 2532 | doc: /* Return product of any number of arguments, which are numbers or markers. |
8c1a1077 PJ |
2533 | usage: (* &rest NUMBERS-OR-MARKERS) */) |
2534 | (nargs, args) | |
7921925c JB |
2535 | int nargs; |
2536 | Lisp_Object *args; | |
2537 | { | |
2538 | return arith_driver (Amult, nargs, args); | |
2539 | } | |
2540 | ||
2541 | DEFUN ("/", Fquo, Squo, 2, MANY, 0, | |
be24eadf | 2542 | doc: /* Return first argument divided by all the remaining arguments. |
f44fba9e | 2543 | The arguments must be numbers or markers. |
8c1a1077 PJ |
2544 | usage: (/ DIVIDEND DIVISOR &rest DIVISORS) */) |
2545 | (nargs, args) | |
7921925c JB |
2546 | int nargs; |
2547 | Lisp_Object *args; | |
2548 | { | |
28712a21 | 2549 | int argnum; |
7ef98053 | 2550 | for (argnum = 2; argnum < nargs; argnum++) |
28712a21 JB |
2551 | if (FLOATP (args[argnum])) |
2552 | return float_arith_driver (0, 0, Adiv, nargs, args); | |
7921925c JB |
2553 | return arith_driver (Adiv, nargs, args); |
2554 | } | |
2555 | ||
2556 | DEFUN ("%", Frem, Srem, 2, 2, 0, | |
be24eadf | 2557 | doc: /* Return remainder of X divided by Y. |
8c1a1077 PJ |
2558 | Both must be integers or markers. */) |
2559 | (x, y) | |
d9c2a0f2 | 2560 | register Lisp_Object x, y; |
7921925c JB |
2561 | { |
2562 | Lisp_Object val; | |
2563 | ||
b7826503 PJ |
2564 | CHECK_NUMBER_COERCE_MARKER (x); |
2565 | CHECK_NUMBER_COERCE_MARKER (y); | |
7921925c | 2566 | |
d9c2a0f2 | 2567 | if (XFASTINT (y) == 0) |
740ef0b5 | 2568 | xsignal0 (Qarith_error); |
87fbf902 | 2569 | |
d9c2a0f2 | 2570 | XSETINT (val, XINT (x) % XINT (y)); |
7921925c JB |
2571 | return val; |
2572 | } | |
2573 | ||
1d66a5fa KH |
2574 | #ifndef HAVE_FMOD |
2575 | double | |
2576 | fmod (f1, f2) | |
2577 | double f1, f2; | |
2578 | { | |
bc1c9d7e PE |
2579 | double r = f1; |
2580 | ||
fa43b1e8 KH |
2581 | if (f2 < 0.0) |
2582 | f2 = -f2; | |
bc1c9d7e PE |
2583 | |
2584 | /* If the magnitude of the result exceeds that of the divisor, or | |
2585 | the sign of the result does not agree with that of the dividend, | |
2586 | iterate with the reduced value. This does not yield a | |
2587 | particularly accurate result, but at least it will be in the | |
2588 | range promised by fmod. */ | |
2589 | do | |
2590 | r -= f2 * floor (r / f2); | |
2591 | while (f2 <= (r < 0 ? -r : r) || ((r < 0) != (f1 < 0) && ! isnan (r))); | |
2592 | ||
2593 | return r; | |
1d66a5fa KH |
2594 | } |
2595 | #endif /* ! HAVE_FMOD */ | |
2596 | ||
44fa9da5 | 2597 | DEFUN ("mod", Fmod, Smod, 2, 2, 0, |
be24eadf | 2598 | doc: /* Return X modulo Y. |
8c1a1077 PJ |
2599 | The result falls between zero (inclusive) and Y (exclusive). |
2600 | Both X and Y must be numbers or markers. */) | |
2601 | (x, y) | |
d9c2a0f2 | 2602 | register Lisp_Object x, y; |
44fa9da5 PE |
2603 | { |
2604 | Lisp_Object val; | |
5260234d | 2605 | EMACS_INT i1, i2; |
44fa9da5 | 2606 | |
b7826503 PJ |
2607 | CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (x); |
2608 | CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (y); | |
44fa9da5 | 2609 | |
d9c2a0f2 | 2610 | if (FLOATP (x) || FLOATP (y)) |
ad8d56b9 PE |
2611 | return fmod_float (x, y); |
2612 | ||
d9c2a0f2 EN |
2613 | i1 = XINT (x); |
2614 | i2 = XINT (y); | |
44fa9da5 PE |
2615 | |
2616 | if (i2 == 0) | |
740ef0b5 | 2617 | xsignal0 (Qarith_error); |
7403b5c8 | 2618 | |
44fa9da5 PE |
2619 | i1 %= i2; |
2620 | ||
2621 | /* If the "remainder" comes out with the wrong sign, fix it. */ | |
04f7ec69 | 2622 | if (i2 < 0 ? i1 > 0 : i1 < 0) |
44fa9da5 PE |
2623 | i1 += i2; |
2624 | ||
f187f1f7 | 2625 | XSETINT (val, i1); |
44fa9da5 PE |
2626 | return val; |
2627 | } | |
2628 | ||
7921925c | 2629 | DEFUN ("max", Fmax, Smax, 1, MANY, 0, |
8c1a1077 | 2630 | doc: /* Return largest of all the arguments (which must be numbers or markers). |
f44fba9e | 2631 | The value is always a number; markers are converted to numbers. |
8c1a1077 PJ |
2632 | usage: (max NUMBER-OR-MARKER &rest NUMBERS-OR-MARKERS) */) |
2633 | (nargs, args) | |
7921925c JB |
2634 | int nargs; |
2635 | Lisp_Object *args; | |
2636 | { | |
2637 | return arith_driver (Amax, nargs, args); | |
2638 | } | |
2639 | ||
2640 | DEFUN ("min", Fmin, Smin, 1, MANY, 0, | |
8c1a1077 | 2641 | doc: /* Return smallest of all the arguments (which must be numbers or markers). |
f44fba9e | 2642 | The value is always a number; markers are converted to numbers. |
8c1a1077 PJ |
2643 | usage: (min NUMBER-OR-MARKER &rest NUMBERS-OR-MARKERS) */) |
2644 | (nargs, args) | |
7921925c JB |
2645 | int nargs; |
2646 | Lisp_Object *args; | |
2647 | { | |
2648 | return arith_driver (Amin, nargs, args); | |
2649 | } | |
2650 | ||
2651 | DEFUN ("logand", Flogand, Slogand, 0, MANY, 0, | |
8c1a1077 | 2652 | doc: /* Return bitwise-and of all the arguments. |
f44fba9e | 2653 | Arguments may be integers, or markers converted to integers. |
8c1a1077 PJ |
2654 | usage: (logand &rest INTS-OR-MARKERS) */) |
2655 | (nargs, args) | |
7921925c JB |
2656 | int nargs; |
2657 | Lisp_Object *args; | |
2658 | { | |
2659 | return arith_driver (Alogand, nargs, args); | |
2660 | } | |
2661 | ||
2662 | DEFUN ("logior", Flogior, Slogior, 0, MANY, 0, | |
8c1a1077 | 2663 | doc: /* Return bitwise-or of all the arguments. |
f44fba9e | 2664 | Arguments may be integers, or markers converted to integers. |
8c1a1077 PJ |
2665 | usage: (logior &rest INTS-OR-MARKERS) */) |
2666 | (nargs, args) | |
7921925c JB |
2667 | int nargs; |
2668 | Lisp_Object *args; | |
2669 | { | |
2670 | return arith_driver (Alogior, nargs, args); | |
2671 | } | |
2672 | ||
2673 | DEFUN ("logxor", Flogxor, Slogxor, 0, MANY, 0, | |
8c1a1077 | 2674 | doc: /* Return bitwise-exclusive-or of all the arguments. |
f44fba9e | 2675 | Arguments may be integers, or markers converted to integers. |
31fb1b2c | 2676 | usage: (logxor &rest INTS-OR-MARKERS) */) |
8c1a1077 | 2677 | (nargs, args) |
7921925c JB |
2678 | int nargs; |
2679 | Lisp_Object *args; | |
2680 | { | |
2681 | return arith_driver (Alogxor, nargs, args); | |
2682 | } | |
2683 | ||
2684 | DEFUN ("ash", Fash, Sash, 2, 2, 0, | |
8c1a1077 PJ |
2685 | doc: /* Return VALUE with its bits shifted left by COUNT. |
2686 | If COUNT is negative, shifting is actually to the right. | |
2687 | In this case, the sign bit is duplicated. */) | |
2688 | (value, count) | |
3b9f7964 | 2689 | register Lisp_Object value, count; |
7921925c JB |
2690 | { |
2691 | register Lisp_Object val; | |
2692 | ||
b7826503 PJ |
2693 | CHECK_NUMBER (value); |
2694 | CHECK_NUMBER (count); | |
7921925c | 2695 | |
81d70626 RS |
2696 | if (XINT (count) >= BITS_PER_EMACS_INT) |
2697 | XSETINT (val, 0); | |
2698 | else if (XINT (count) > 0) | |
3d9652eb | 2699 | XSETINT (val, XINT (value) << XFASTINT (count)); |
81d70626 RS |
2700 | else if (XINT (count) <= -BITS_PER_EMACS_INT) |
2701 | XSETINT (val, XINT (value) < 0 ? -1 : 0); | |
7921925c | 2702 | else |
3d9652eb | 2703 | XSETINT (val, XINT (value) >> -XINT (count)); |
7921925c JB |
2704 | return val; |
2705 | } | |
2706 | ||
2707 | DEFUN ("lsh", Flsh, Slsh, 2, 2, 0, | |
8c1a1077 PJ |
2708 | doc: /* Return VALUE with its bits shifted left by COUNT. |
2709 | If COUNT is negative, shifting is actually to the right. | |
3a9b1297 | 2710 | In this case, zeros are shifted in on the left. */) |
8c1a1077 | 2711 | (value, count) |
3d9652eb | 2712 | register Lisp_Object value, count; |
7921925c JB |
2713 | { |
2714 | register Lisp_Object val; | |
2715 | ||
b7826503 PJ |
2716 | CHECK_NUMBER (value); |
2717 | CHECK_NUMBER (count); | |
7921925c | 2718 | |
81d70626 RS |
2719 | if (XINT (count) >= BITS_PER_EMACS_INT) |
2720 | XSETINT (val, 0); | |
2721 | else if (XINT (count) > 0) | |
3d9652eb | 2722 | XSETINT (val, (EMACS_UINT) XUINT (value) << XFASTINT (count)); |
81d70626 RS |
2723 | else if (XINT (count) <= -BITS_PER_EMACS_INT) |
2724 | XSETINT (val, 0); | |
7921925c | 2725 | else |
3d9652eb | 2726 | XSETINT (val, (EMACS_UINT) XUINT (value) >> -XINT (count)); |
7921925c JB |
2727 | return val; |
2728 | } | |
2729 | ||
2730 | DEFUN ("1+", Fadd1, Sadd1, 1, 1, 0, | |
8c1a1077 PJ |
2731 | doc: /* Return NUMBER plus one. NUMBER may be a number or a marker. |
2732 | Markers are converted to integers. */) | |
2733 | (number) | |
d9c2a0f2 | 2734 | register Lisp_Object number; |
7921925c | 2735 | { |
b7826503 | 2736 | CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (number); |
7921925c | 2737 | |
d9c2a0f2 | 2738 | if (FLOATP (number)) |
7539e11f | 2739 | return (make_float (1.0 + XFLOAT_DATA (number))); |
7921925c | 2740 | |
d9c2a0f2 EN |
2741 | XSETINT (number, XINT (number) + 1); |
2742 | return number; | |
7921925c JB |
2743 | } |
2744 | ||
2745 | DEFUN ("1-", Fsub1, Ssub1, 1, 1, 0, | |
8c1a1077 PJ |
2746 | doc: /* Return NUMBER minus one. NUMBER may be a number or a marker. |
2747 | Markers are converted to integers. */) | |
2748 | (number) | |
d9c2a0f2 | 2749 | register Lisp_Object number; |
7921925c | 2750 | { |
b7826503 | 2751 | CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (number); |
7921925c | 2752 | |
d9c2a0f2 | 2753 | if (FLOATP (number)) |
7539e11f | 2754 | return (make_float (-1.0 + XFLOAT_DATA (number))); |
7921925c | 2755 | |
d9c2a0f2 EN |
2756 | XSETINT (number, XINT (number) - 1); |
2757 | return number; | |
7921925c JB |
2758 | } |
2759 | ||
2760 | DEFUN ("lognot", Flognot, Slognot, 1, 1, 0, | |
8c1a1077 PJ |
2761 | doc: /* Return the bitwise complement of NUMBER. NUMBER must be an integer. */) |
2762 | (number) | |
d9c2a0f2 | 2763 | register Lisp_Object number; |
7921925c | 2764 | { |
b7826503 | 2765 | CHECK_NUMBER (number); |
53924017 | 2766 | XSETINT (number, ~XINT (number)); |
d9c2a0f2 | 2767 | return number; |
7921925c | 2768 | } |
6b61353c KH |
2769 | |
2770 | DEFUN ("byteorder", Fbyteorder, Sbyteorder, 0, 0, 0, | |
2771 | doc: /* Return the byteorder for the machine. | |
2772 | Returns 66 (ASCII uppercase B) for big endian machines or 108 (ASCII | |
2773 | lowercase l) for small endian machines. */) | |
2774 | () | |
2775 | { | |
2776 | unsigned i = 0x04030201; | |
2777 | int order = *(char *)&i == 1 ? 108 : 66; | |
2778 | ||
2779 | return make_number (order); | |
2780 | } | |
2781 | ||
2782 | ||
7921925c JB |
2783 | \f |
2784 | void | |
2785 | syms_of_data () | |
2786 | { | |
6315e761 RS |
2787 | Lisp_Object error_tail, arith_tail; |
2788 | ||
7921925c JB |
2789 | Qquote = intern ("quote"); |
2790 | Qlambda = intern ("lambda"); | |
2791 | Qsubr = intern ("subr"); | |
2792 | Qerror_conditions = intern ("error-conditions"); | |
2793 | Qerror_message = intern ("error-message"); | |
2794 | Qtop_level = intern ("top-level"); | |
2795 | ||
2796 | Qerror = intern ("error"); | |
2797 | Qquit = intern ("quit"); | |
2798 | Qwrong_type_argument = intern ("wrong-type-argument"); | |
2799 | Qargs_out_of_range = intern ("args-out-of-range"); | |
2800 | Qvoid_function = intern ("void-function"); | |
ffd56f97 | 2801 | Qcyclic_function_indirection = intern ("cyclic-function-indirection"); |
f35d5bad | 2802 | Qcyclic_variable_indirection = intern ("cyclic-variable-indirection"); |
7921925c JB |
2803 | Qvoid_variable = intern ("void-variable"); |
2804 | Qsetting_constant = intern ("setting-constant"); | |
2805 | Qinvalid_read_syntax = intern ("invalid-read-syntax"); | |
2806 | ||
2807 | Qinvalid_function = intern ("invalid-function"); | |
2808 | Qwrong_number_of_arguments = intern ("wrong-number-of-arguments"); | |
2809 | Qno_catch = intern ("no-catch"); | |
2810 | Qend_of_file = intern ("end-of-file"); | |
2811 | Qarith_error = intern ("arith-error"); | |
2812 | Qbeginning_of_buffer = intern ("beginning-of-buffer"); | |
2813 | Qend_of_buffer = intern ("end-of-buffer"); | |
2814 | Qbuffer_read_only = intern ("buffer-read-only"); | |
8f9f49d7 | 2815 | Qtext_read_only = intern ("text-read-only"); |
3b8819d6 | 2816 | Qmark_inactive = intern ("mark-inactive"); |
7921925c JB |
2817 | |
2818 | Qlistp = intern ("listp"); | |
2819 | Qconsp = intern ("consp"); | |
2820 | Qsymbolp = intern ("symbolp"); | |
cda9b832 | 2821 | Qkeywordp = intern ("keywordp"); |
7921925c JB |
2822 | Qintegerp = intern ("integerp"); |
2823 | Qnatnump = intern ("natnump"); | |
8e86942b | 2824 | Qwholenump = intern ("wholenump"); |
7921925c JB |
2825 | Qstringp = intern ("stringp"); |
2826 | Qarrayp = intern ("arrayp"); | |
2827 | Qsequencep = intern ("sequencep"); | |
2828 | Qbufferp = intern ("bufferp"); | |
2829 | Qvectorp = intern ("vectorp"); | |
2830 | Qchar_or_string_p = intern ("char-or-string-p"); | |
2831 | Qmarkerp = intern ("markerp"); | |
07bd8472 | 2832 | Qbuffer_or_string_p = intern ("buffer-or-string-p"); |
7921925c JB |
2833 | Qinteger_or_marker_p = intern ("integer-or-marker-p"); |
2834 | Qboundp = intern ("boundp"); | |
2835 | Qfboundp = intern ("fboundp"); | |
2836 | ||
7921925c JB |
2837 | Qfloatp = intern ("floatp"); |
2838 | Qnumberp = intern ("numberp"); | |
2839 | Qnumber_or_marker_p = intern ("number-or-marker-p"); | |
7921925c | 2840 | |
4d276982 | 2841 | Qchar_table_p = intern ("char-table-p"); |
7f0edce7 | 2842 | Qvector_or_char_table_p = intern ("vector-or-char-table-p"); |
4d276982 | 2843 | |
6f0e897f DL |
2844 | Qsubrp = intern ("subrp"); |
2845 | Qunevalled = intern ("unevalled"); | |
2846 | Qmany = intern ("many"); | |
2847 | ||
7921925c JB |
2848 | Qcdr = intern ("cdr"); |
2849 | ||
f845f2c9 | 2850 | /* Handle automatic advice activation */ |
ab297811 | 2851 | Qad_advice_info = intern ("ad-advice-info"); |
c1307a23 | 2852 | Qad_activate_internal = intern ("ad-activate-internal"); |
f845f2c9 | 2853 | |
6315e761 RS |
2854 | error_tail = Fcons (Qerror, Qnil); |
2855 | ||
7921925c JB |
2856 | /* ERROR is used as a signaler for random errors for which nothing else is right */ |
2857 | ||
2858 | Fput (Qerror, Qerror_conditions, | |
6315e761 | 2859 | error_tail); |
7921925c JB |
2860 | Fput (Qerror, Qerror_message, |
2861 | build_string ("error")); | |
2862 | ||
2863 | Fput (Qquit, Qerror_conditions, | |
2864 | Fcons (Qquit, Qnil)); | |
2865 | Fput (Qquit, Qerror_message, | |
2866 | build_string ("Quit")); | |
2867 | ||
2868 | Fput (Qwrong_type_argument, Qerror_conditions, | |
6315e761 | 2869 | Fcons (Qwrong_type_argument, error_tail)); |
7921925c JB |
2870 | Fput (Qwrong_type_argument, Qerror_message, |
2871 | build_string ("Wrong type argument")); | |
2872 | ||
2873 | Fput (Qargs_out_of_range, Qerror_conditions, | |
6315e761 | 2874 | Fcons (Qargs_out_of_range, error_tail)); |
7921925c JB |
2875 | Fput (Qargs_out_of_range, Qerror_message, |
2876 | build_string ("Args out of range")); | |
2877 | ||
2878 | Fput (Qvoid_function, Qerror_conditions, | |
6315e761 | 2879 | Fcons (Qvoid_function, error_tail)); |
7921925c JB |
2880 | Fput (Qvoid_function, Qerror_message, |
2881 | build_string ("Symbol's function definition is void")); | |
2882 | ||
ffd56f97 | 2883 | Fput (Qcyclic_function_indirection, Qerror_conditions, |
6315e761 | 2884 | Fcons (Qcyclic_function_indirection, error_tail)); |
ffd56f97 JB |
2885 | Fput (Qcyclic_function_indirection, Qerror_message, |
2886 | build_string ("Symbol's chain of function indirections contains a loop")); | |
2887 | ||
f35d5bad GM |
2888 | Fput (Qcyclic_variable_indirection, Qerror_conditions, |
2889 | Fcons (Qcyclic_variable_indirection, error_tail)); | |
2890 | Fput (Qcyclic_variable_indirection, Qerror_message, | |
2891 | build_string ("Symbol's chain of variable indirections contains a loop")); | |
2892 | ||
13d95cc0 GM |
2893 | Qcircular_list = intern ("circular-list"); |
2894 | staticpro (&Qcircular_list); | |
2895 | Fput (Qcircular_list, Qerror_conditions, | |
2896 | Fcons (Qcircular_list, error_tail)); | |
2897 | Fput (Qcircular_list, Qerror_message, | |
2898 | build_string ("List contains a loop")); | |
2899 | ||
7921925c | 2900 | Fput (Qvoid_variable, Qerror_conditions, |
6315e761 | 2901 | Fcons (Qvoid_variable, error_tail)); |
7921925c JB |
2902 | Fput (Qvoid_variable, Qerror_message, |
2903 | build_string ("Symbol's value as variable is void")); | |
2904 | ||
2905 | Fput (Qsetting_constant, Qerror_conditions, | |
6315e761 | 2906 | Fcons (Qsetting_constant, error_tail)); |
7921925c JB |
2907 | Fput (Qsetting_constant, Qerror_message, |
2908 | build_string ("Attempt to set a constant symbol")); | |
2909 | ||
2910 | Fput (Qinvalid_read_syntax, Qerror_conditions, | |
6315e761 | 2911 | Fcons (Qinvalid_read_syntax, error_tail)); |
7921925c JB |
2912 | Fput (Qinvalid_read_syntax, Qerror_message, |
2913 | build_string ("Invalid read syntax")); | |
2914 | ||
2915 | Fput (Qinvalid_function, Qerror_conditions, | |
6315e761 | 2916 | Fcons (Qinvalid_function, error_tail)); |
7921925c JB |
2917 | Fput (Qinvalid_function, Qerror_message, |
2918 | build_string ("Invalid function")); | |
2919 | ||
2920 | Fput (Qwrong_number_of_arguments, Qerror_conditions, | |
6315e761 | 2921 | Fcons (Qwrong_number_of_arguments, error_tail)); |
7921925c JB |
2922 | Fput (Qwrong_number_of_arguments, Qerror_message, |
2923 | build_string ("Wrong number of arguments")); | |
2924 | ||
2925 | Fput (Qno_catch, Qerror_conditions, | |
6315e761 | 2926 | Fcons (Qno_catch, error_tail)); |
7921925c JB |
2927 | Fput (Qno_catch, Qerror_message, |
2928 | build_string ("No catch for tag")); | |
2929 | ||
2930 | Fput (Qend_of_file, Qerror_conditions, | |
6315e761 | 2931 | Fcons (Qend_of_file, error_tail)); |
7921925c JB |
2932 | Fput (Qend_of_file, Qerror_message, |
2933 | build_string ("End of file during parsing")); | |
2934 | ||
6315e761 | 2935 | arith_tail = Fcons (Qarith_error, error_tail); |
7921925c | 2936 | Fput (Qarith_error, Qerror_conditions, |
6315e761 | 2937 | arith_tail); |
7921925c JB |
2938 | Fput (Qarith_error, Qerror_message, |
2939 | build_string ("Arithmetic error")); | |
2940 | ||
2941 | Fput (Qbeginning_of_buffer, Qerror_conditions, | |
6315e761 | 2942 | Fcons (Qbeginning_of_buffer, error_tail)); |
7921925c JB |
2943 | Fput (Qbeginning_of_buffer, Qerror_message, |
2944 | build_string ("Beginning of buffer")); | |
2945 | ||
2946 | Fput (Qend_of_buffer, Qerror_conditions, | |
6315e761 | 2947 | Fcons (Qend_of_buffer, error_tail)); |
7921925c JB |
2948 | Fput (Qend_of_buffer, Qerror_message, |
2949 | build_string ("End of buffer")); | |
2950 | ||
2951 | Fput (Qbuffer_read_only, Qerror_conditions, | |
6315e761 | 2952 | Fcons (Qbuffer_read_only, error_tail)); |
7921925c JB |
2953 | Fput (Qbuffer_read_only, Qerror_message, |
2954 | build_string ("Buffer is read-only")); | |
2955 | ||
8f9f49d7 GM |
2956 | Fput (Qtext_read_only, Qerror_conditions, |
2957 | Fcons (Qtext_read_only, error_tail)); | |
2958 | Fput (Qtext_read_only, Qerror_message, | |
2959 | build_string ("Text is read-only")); | |
2960 | ||
6315e761 RS |
2961 | Qrange_error = intern ("range-error"); |
2962 | Qdomain_error = intern ("domain-error"); | |
2963 | Qsingularity_error = intern ("singularity-error"); | |
2964 | Qoverflow_error = intern ("overflow-error"); | |
2965 | Qunderflow_error = intern ("underflow-error"); | |
2966 | ||
2967 | Fput (Qdomain_error, Qerror_conditions, | |
2968 | Fcons (Qdomain_error, arith_tail)); | |
2969 | Fput (Qdomain_error, Qerror_message, | |
2970 | build_string ("Arithmetic domain error")); | |
2971 | ||
2972 | Fput (Qrange_error, Qerror_conditions, | |
2973 | Fcons (Qrange_error, arith_tail)); | |
2974 | Fput (Qrange_error, Qerror_message, | |
2975 | build_string ("Arithmetic range error")); | |
2976 | ||
2977 | Fput (Qsingularity_error, Qerror_conditions, | |
2978 | Fcons (Qsingularity_error, Fcons (Qdomain_error, arith_tail))); | |
2979 | Fput (Qsingularity_error, Qerror_message, | |
2980 | build_string ("Arithmetic singularity error")); | |
2981 | ||
2982 | Fput (Qoverflow_error, Qerror_conditions, | |
2983 | Fcons (Qoverflow_error, Fcons (Qdomain_error, arith_tail))); | |
2984 | Fput (Qoverflow_error, Qerror_message, | |
2985 | build_string ("Arithmetic overflow error")); | |
2986 | ||
2987 | Fput (Qunderflow_error, Qerror_conditions, | |
2988 | Fcons (Qunderflow_error, Fcons (Qdomain_error, arith_tail))); | |
2989 | Fput (Qunderflow_error, Qerror_message, | |
2990 | build_string ("Arithmetic underflow error")); | |
2991 | ||
2992 | staticpro (&Qrange_error); | |
2993 | staticpro (&Qdomain_error); | |
2994 | staticpro (&Qsingularity_error); | |
2995 | staticpro (&Qoverflow_error); | |
2996 | staticpro (&Qunderflow_error); | |
6315e761 | 2997 | |
7921925c JB |
2998 | staticpro (&Qnil); |
2999 | staticpro (&Qt); | |
3000 | staticpro (&Qquote); | |
3001 | staticpro (&Qlambda); | |
3002 | staticpro (&Qsubr); | |
3003 | staticpro (&Qunbound); | |
3004 | staticpro (&Qerror_conditions); | |
3005 | staticpro (&Qerror_message); | |
3006 | staticpro (&Qtop_level); | |
3007 | ||
3008 | staticpro (&Qerror); | |
3009 | staticpro (&Qquit); | |
3010 | staticpro (&Qwrong_type_argument); | |
3011 | staticpro (&Qargs_out_of_range); | |
3012 | staticpro (&Qvoid_function); | |
ffd56f97 | 3013 | staticpro (&Qcyclic_function_indirection); |
dfad0b34 | 3014 | staticpro (&Qcyclic_variable_indirection); |
7921925c JB |
3015 | staticpro (&Qvoid_variable); |
3016 | staticpro (&Qsetting_constant); | |
3017 | staticpro (&Qinvalid_read_syntax); | |
3018 | staticpro (&Qwrong_number_of_arguments); | |
3019 | staticpro (&Qinvalid_function); | |
3020 | staticpro (&Qno_catch); | |
3021 | staticpro (&Qend_of_file); | |
3022 | staticpro (&Qarith_error); | |
3023 | staticpro (&Qbeginning_of_buffer); | |
3024 | staticpro (&Qend_of_buffer); | |
3025 | staticpro (&Qbuffer_read_only); | |
8f9f49d7 | 3026 | staticpro (&Qtext_read_only); |
638b77e6 | 3027 | staticpro (&Qmark_inactive); |
7921925c JB |
3028 | |
3029 | staticpro (&Qlistp); | |
3030 | staticpro (&Qconsp); | |
3031 | staticpro (&Qsymbolp); | |
cda9b832 | 3032 | staticpro (&Qkeywordp); |
7921925c JB |
3033 | staticpro (&Qintegerp); |
3034 | staticpro (&Qnatnump); | |
8e86942b | 3035 | staticpro (&Qwholenump); |
7921925c JB |
3036 | staticpro (&Qstringp); |
3037 | staticpro (&Qarrayp); | |
3038 | staticpro (&Qsequencep); | |
3039 | staticpro (&Qbufferp); | |
3040 | staticpro (&Qvectorp); | |
3041 | staticpro (&Qchar_or_string_p); | |
3042 | staticpro (&Qmarkerp); | |
07bd8472 | 3043 | staticpro (&Qbuffer_or_string_p); |
7921925c | 3044 | staticpro (&Qinteger_or_marker_p); |
7921925c | 3045 | staticpro (&Qfloatp); |
464f8898 RS |
3046 | staticpro (&Qnumberp); |
3047 | staticpro (&Qnumber_or_marker_p); | |
4d276982 | 3048 | staticpro (&Qchar_table_p); |
7f0edce7 | 3049 | staticpro (&Qvector_or_char_table_p); |
6f0e897f DL |
3050 | staticpro (&Qsubrp); |
3051 | staticpro (&Qmany); | |
3052 | staticpro (&Qunevalled); | |
7921925c JB |
3053 | |
3054 | staticpro (&Qboundp); | |
3055 | staticpro (&Qfboundp); | |
3056 | staticpro (&Qcdr); | |
ab297811 | 3057 | staticpro (&Qad_advice_info); |
c1307a23 | 3058 | staticpro (&Qad_activate_internal); |
7921925c | 3059 | |
39bcc759 RS |
3060 | /* Types that type-of returns. */ |
3061 | Qinteger = intern ("integer"); | |
3062 | Qsymbol = intern ("symbol"); | |
3063 | Qstring = intern ("string"); | |
3064 | Qcons = intern ("cons"); | |
3065 | Qmarker = intern ("marker"); | |
3066 | Qoverlay = intern ("overlay"); | |
3067 | Qfloat = intern ("float"); | |
3068 | Qwindow_configuration = intern ("window-configuration"); | |
3069 | Qprocess = intern ("process"); | |
3070 | Qwindow = intern ("window"); | |
3071 | /* Qsubr = intern ("subr"); */ | |
3072 | Qcompiled_function = intern ("compiled-function"); | |
3073 | Qbuffer = intern ("buffer"); | |
3074 | Qframe = intern ("frame"); | |
3075 | Qvector = intern ("vector"); | |
fc67d5be KH |
3076 | Qchar_table = intern ("char-table"); |
3077 | Qbool_vector = intern ("bool-vector"); | |
81dc5de5 | 3078 | Qhash_table = intern ("hash-table"); |
39bcc759 RS |
3079 | |
3080 | staticpro (&Qinteger); | |
3081 | staticpro (&Qsymbol); | |
3082 | staticpro (&Qstring); | |
3083 | staticpro (&Qcons); | |
3084 | staticpro (&Qmarker); | |
3085 | staticpro (&Qoverlay); | |
3086 | staticpro (&Qfloat); | |
3087 | staticpro (&Qwindow_configuration); | |
3088 | staticpro (&Qprocess); | |
3089 | staticpro (&Qwindow); | |
3090 | /* staticpro (&Qsubr); */ | |
3091 | staticpro (&Qcompiled_function); | |
3092 | staticpro (&Qbuffer); | |
3093 | staticpro (&Qframe); | |
3094 | staticpro (&Qvector); | |
fc67d5be KH |
3095 | staticpro (&Qchar_table); |
3096 | staticpro (&Qbool_vector); | |
81dc5de5 | 3097 | staticpro (&Qhash_table); |
39bcc759 | 3098 | |
f35d5bad | 3099 | defsubr (&Sindirect_variable); |
6b61353c | 3100 | defsubr (&Sinteractive_form); |
7921925c JB |
3101 | defsubr (&Seq); |
3102 | defsubr (&Snull); | |
39bcc759 | 3103 | defsubr (&Stype_of); |
7921925c JB |
3104 | defsubr (&Slistp); |
3105 | defsubr (&Snlistp); | |
3106 | defsubr (&Sconsp); | |
3107 | defsubr (&Satom); | |
3108 | defsubr (&Sintegerp); | |
464f8898 | 3109 | defsubr (&Sinteger_or_marker_p); |
7921925c JB |
3110 | defsubr (&Snumberp); |
3111 | defsubr (&Snumber_or_marker_p); | |
464f8898 | 3112 | defsubr (&Sfloatp); |
7921925c JB |
3113 | defsubr (&Snatnump); |
3114 | defsubr (&Ssymbolp); | |
cda9b832 | 3115 | defsubr (&Skeywordp); |
7921925c | 3116 | defsubr (&Sstringp); |
0f56470d | 3117 | defsubr (&Smultibyte_string_p); |
7921925c | 3118 | defsubr (&Svectorp); |
4d276982 | 3119 | defsubr (&Schar_table_p); |
7f0edce7 | 3120 | defsubr (&Svector_or_char_table_p); |
4d276982 | 3121 | defsubr (&Sbool_vector_p); |
7921925c JB |
3122 | defsubr (&Sarrayp); |
3123 | defsubr (&Ssequencep); | |
3124 | defsubr (&Sbufferp); | |
3125 | defsubr (&Smarkerp); | |
7921925c | 3126 | defsubr (&Ssubrp); |
dbc4e1c1 | 3127 | defsubr (&Sbyte_code_function_p); |
7921925c JB |
3128 | defsubr (&Schar_or_string_p); |
3129 | defsubr (&Scar); | |
3130 | defsubr (&Scdr); | |
3131 | defsubr (&Scar_safe); | |
3132 | defsubr (&Scdr_safe); | |
3133 | defsubr (&Ssetcar); | |
3134 | defsubr (&Ssetcdr); | |
3135 | defsubr (&Ssymbol_function); | |
ffd56f97 | 3136 | defsubr (&Sindirect_function); |
7921925c JB |
3137 | defsubr (&Ssymbol_plist); |
3138 | defsubr (&Ssymbol_name); | |
3139 | defsubr (&Smakunbound); | |
3140 | defsubr (&Sfmakunbound); | |
3141 | defsubr (&Sboundp); | |
3142 | defsubr (&Sfboundp); | |
3143 | defsubr (&Sfset); | |
80df38a2 | 3144 | defsubr (&Sdefalias); |
7921925c JB |
3145 | defsubr (&Ssetplist); |
3146 | defsubr (&Ssymbol_value); | |
3147 | defsubr (&Sset); | |
3148 | defsubr (&Sdefault_boundp); | |
3149 | defsubr (&Sdefault_value); | |
3150 | defsubr (&Sset_default); | |
3151 | defsubr (&Ssetq_default); | |
3152 | defsubr (&Smake_variable_buffer_local); | |
3153 | defsubr (&Smake_local_variable); | |
3154 | defsubr (&Skill_local_variable); | |
b0c2d1c6 | 3155 | defsubr (&Smake_variable_frame_local); |
62476adc | 3156 | defsubr (&Slocal_variable_p); |
f4f04cee | 3157 | defsubr (&Slocal_variable_if_set_p); |
6b61353c | 3158 | defsubr (&Svariable_binding_locus); |
7921925c JB |
3159 | defsubr (&Saref); |
3160 | defsubr (&Saset); | |
f2980264 | 3161 | defsubr (&Snumber_to_string); |
25e40a4b | 3162 | defsubr (&Sstring_to_number); |
7921925c JB |
3163 | defsubr (&Seqlsign); |
3164 | defsubr (&Slss); | |
3165 | defsubr (&Sgtr); | |
3166 | defsubr (&Sleq); | |
3167 | defsubr (&Sgeq); | |
3168 | defsubr (&Sneq); | |
3169 | defsubr (&Szerop); | |
3170 | defsubr (&Splus); | |
3171 | defsubr (&Sminus); | |
3172 | defsubr (&Stimes); | |
3173 | defsubr (&Squo); | |
3174 | defsubr (&Srem); | |
44fa9da5 | 3175 | defsubr (&Smod); |
7921925c JB |
3176 | defsubr (&Smax); |
3177 | defsubr (&Smin); | |
3178 | defsubr (&Slogand); | |
3179 | defsubr (&Slogior); | |
3180 | defsubr (&Slogxor); | |
3181 | defsubr (&Slsh); | |
3182 | defsubr (&Sash); | |
3183 | defsubr (&Sadd1); | |
3184 | defsubr (&Ssub1); | |
3185 | defsubr (&Slognot); | |
6b61353c | 3186 | defsubr (&Sbyteorder); |
6f0e897f | 3187 | defsubr (&Ssubr_arity); |
0fddae66 | 3188 | defsubr (&Ssubr_name); |
8e86942b | 3189 | |
c80bd143 | 3190 | XSYMBOL (Qwholenump)->function = XSYMBOL (Qnatnump)->function; |
e6190b11 | 3191 | |
9d113d9d AS |
3192 | DEFVAR_LISP ("most-positive-fixnum", &Vmost_positive_fixnum, |
3193 | doc: /* The largest value that is representable in a Lisp integer. */); | |
3194 | Vmost_positive_fixnum = make_number (MOST_POSITIVE_FIXNUM); | |
bfb96cb7 | 3195 | |
9d113d9d AS |
3196 | DEFVAR_LISP ("most-negative-fixnum", &Vmost_negative_fixnum, |
3197 | doc: /* The smallest value that is representable in a Lisp integer. */); | |
3198 | Vmost_negative_fixnum = make_number (MOST_NEGATIVE_FIXNUM); | |
7921925c JB |
3199 | } |
3200 | ||
a33ef3ab | 3201 | SIGTYPE |
7921925c JB |
3202 | arith_error (signo) |
3203 | int signo; | |
3204 | { | |
fe42a920 | 3205 | #if defined(USG) && !defined(POSIX_SIGNALS) |
7921925c JB |
3206 | /* USG systems forget handlers when they are used; |
3207 | must reestablish each time */ | |
3208 | signal (signo, arith_error); | |
3209 | #endif /* USG */ | |
3210 | #ifdef VMS | |
3211 | /* VMS systems are like USG. */ | |
3212 | signal (signo, arith_error); | |
3213 | #endif /* VMS */ | |
3214 | #ifdef BSD4_1 | |
3215 | sigrelse (SIGFPE); | |
3216 | #else /* not BSD4_1 */ | |
e065a56e | 3217 | sigsetmask (SIGEMPTYMASK); |
7921925c JB |
3218 | #endif /* not BSD4_1 */ |
3219 | ||
333f1b6f | 3220 | SIGNAL_THREAD_CHECK (signo); |
740ef0b5 | 3221 | xsignal0 (Qarith_error); |
7921925c JB |
3222 | } |
3223 | ||
dfcf069d | 3224 | void |
7921925c JB |
3225 | init_data () |
3226 | { | |
3227 | /* Don't do this if just dumping out. | |
3228 | We don't want to call `signal' in this case | |
3229 | so that we don't have trouble with dumping | |
3230 | signal-delivering routines in an inconsistent state. */ | |
3231 | #ifndef CANNOT_DUMP | |
3232 | if (!initialized) | |
3233 | return; | |
3234 | #endif /* CANNOT_DUMP */ | |
3235 | signal (SIGFPE, arith_error); | |
7403b5c8 | 3236 | |
7921925c JB |
3237 | #ifdef uts |
3238 | signal (SIGEMT, arith_error); | |
3239 | #endif /* uts */ | |
3240 | } | |
6b61353c KH |
3241 | |
3242 | /* arch-tag: 25879798-b84d-479a-9c89-7d148e2109f7 | |
3243 | (do not change this comment) */ |