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, |
8cabe764 GM |
3 | 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008 |
4 | Free Software Foundation, Inc. | |
7921925c JB |
5 | |
6 | This file is part of GNU Emacs. | |
7 | ||
8 | GNU Emacs is free software; you can redistribute it and/or modify | |
9 | it under the terms of the GNU General Public License as published by | |
684d6f5b | 10 | the Free Software Foundation; either version 3, or (at your option) |
7921925c JB |
11 | any later version. |
12 | ||
13 | GNU Emacs is distributed in the hope that it will be useful, | |
14 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | GNU General Public License for more details. | |
17 | ||
18 | You should have received a copy of the GNU General Public License | |
19 | along with GNU Emacs; see the file COPYING. If not, write to | |
4fc5845f LK |
20 | the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, |
21 | Boston, MA 02110-1301, USA. */ | |
7921925c JB |
22 | |
23 | ||
18160b98 | 24 | #include <config.h> |
68c45bf0 | 25 | #include <signal.h> |
dd8daec5 | 26 | #include <stdio.h> |
7921925c | 27 | #include "lisp.h" |
29eab336 | 28 | #include "puresize.h" |
e6e1f521 | 29 | #include "character.h" |
7921925c | 30 | #include "buffer.h" |
077d751f | 31 | #include "keyboard.h" |
b0c2d1c6 | 32 | #include "frame.h" |
a44804c2 | 33 | #include "syssignal.h" |
256c9c3a | 34 | #include "termhooks.h" /* For FRAME_KBOARD reference in y-or-n-p. */ |
fb8e9847 | 35 | |
93b91208 | 36 | #ifdef STDC_HEADERS |
2f261542 | 37 | #include <float.h> |
93b91208 | 38 | #endif |
defa77b5 | 39 | |
ad8d56b9 PE |
40 | /* If IEEE_FLOATING_POINT isn't defined, default it from FLT_*. */ |
41 | #ifndef IEEE_FLOATING_POINT | |
42 | #if (FLT_RADIX == 2 && FLT_MANT_DIG == 24 \ | |
43 | && FLT_MIN_EXP == -125 && FLT_MAX_EXP == 128) | |
44 | #define IEEE_FLOATING_POINT 1 | |
45 | #else | |
46 | #define IEEE_FLOATING_POINT 0 | |
47 | #endif | |
48 | #endif | |
49 | ||
defa77b5 RS |
50 | /* Work around a problem that happens because math.h on hpux 7 |
51 | defines two static variables--which, in Emacs, are not really static, | |
52 | because `static' is defined as nothing. The problem is that they are | |
53 | here, in floatfns.c, and in lread.c. | |
54 | These macros prevent the name conflict. */ | |
55 | #if defined (HPUX) && !defined (HPUX8) | |
56 | #define _MAXLDBL data_c_maxldbl | |
57 | #define _NMAXLDBL data_c_nmaxldbl | |
58 | #endif | |
59 | ||
7921925c | 60 | #include <math.h> |
7921925c | 61 | |
024ec58f BF |
62 | #if !defined (atof) |
63 | extern double atof (); | |
64 | #endif /* !atof */ | |
65 | ||
7921925c JB |
66 | Lisp_Object Qnil, Qt, Qquote, Qlambda, Qsubr, Qunbound; |
67 | Lisp_Object Qerror_conditions, Qerror_message, Qtop_level; | |
68 | Lisp_Object Qerror, Qquit, Qwrong_type_argument, Qargs_out_of_range; | |
ffd56f97 | 69 | Lisp_Object Qvoid_variable, Qvoid_function, Qcyclic_function_indirection; |
13d95cc0 | 70 | Lisp_Object Qcyclic_variable_indirection, Qcircular_list; |
7921925c JB |
71 | Lisp_Object Qsetting_constant, Qinvalid_read_syntax; |
72 | Lisp_Object Qinvalid_function, Qwrong_number_of_arguments, Qno_catch; | |
3b8819d6 | 73 | Lisp_Object Qend_of_file, Qarith_error, Qmark_inactive; |
7921925c | 74 | Lisp_Object Qbeginning_of_buffer, Qend_of_buffer, Qbuffer_read_only; |
8f9f49d7 | 75 | Lisp_Object Qtext_read_only; |
6b61353c | 76 | |
8e86942b | 77 | Lisp_Object Qintegerp, Qnatnump, Qwholenump, Qsymbolp, Qlistp, Qconsp; |
7921925c JB |
78 | Lisp_Object Qstringp, Qarrayp, Qsequencep, Qbufferp; |
79 | Lisp_Object Qchar_or_string_p, Qmarkerp, Qinteger_or_marker_p, Qvectorp; | |
cda9b832 | 80 | Lisp_Object Qbuffer_or_string_p, Qkeywordp; |
7921925c | 81 | Lisp_Object Qboundp, Qfboundp; |
7f0edce7 | 82 | Lisp_Object Qchar_table_p, Qvector_or_char_table_p; |
39bcc759 | 83 | |
7921925c | 84 | Lisp_Object Qcdr; |
c1307a23 | 85 | Lisp_Object Qad_advice_info, Qad_activate_internal; |
7921925c | 86 | |
6315e761 RS |
87 | Lisp_Object Qrange_error, Qdomain_error, Qsingularity_error; |
88 | Lisp_Object Qoverflow_error, Qunderflow_error; | |
89 | ||
464f8898 | 90 | Lisp_Object Qfloatp; |
7921925c | 91 | Lisp_Object Qnumberp, Qnumber_or_marker_p; |
7921925c | 92 | |
6b61353c KH |
93 | Lisp_Object Qinteger; |
94 | static Lisp_Object Qsymbol, Qstring, Qcons, Qmarker, Qoverlay; | |
8313c4e7 KH |
95 | static Lisp_Object Qfloat, Qwindow_configuration, Qwindow; |
96 | Lisp_Object Qprocess; | |
39bcc759 | 97 | static Lisp_Object Qcompiled_function, Qbuffer, Qframe, Qvector; |
81dc5de5 | 98 | static Lisp_Object Qchar_table, Qbool_vector, Qhash_table; |
6f0e897f | 99 | static Lisp_Object Qsubrp, Qmany, Qunevalled; |
39bcc759 | 100 | |
7a283f36 | 101 | static Lisp_Object swap_in_symval_forwarding P_ ((Lisp_Object, Lisp_Object)); |
d02eeab3 | 102 | |
9d113d9d | 103 | Lisp_Object Vmost_positive_fixnum, Vmost_negative_fixnum; |
e6190b11 | 104 | |
13d95cc0 GM |
105 | |
106 | void | |
107 | circular_list_error (list) | |
108 | Lisp_Object list; | |
109 | { | |
740ef0b5 | 110 | xsignal (Qcircular_list, list); |
13d95cc0 GM |
111 | } |
112 | ||
113 | ||
7921925c JB |
114 | Lisp_Object |
115 | wrong_type_argument (predicate, value) | |
116 | register Lisp_Object predicate, value; | |
117 | { | |
0c64a8cd KS |
118 | /* If VALUE is not even a valid Lisp object, abort here |
119 | where we can get a backtrace showing where it came from. */ | |
8e50cc2d | 120 | if ((unsigned int) XTYPE (value) >= Lisp_Type_Limit) |
0c64a8cd | 121 | abort (); |
e1351ff7 | 122 | |
740ef0b5 | 123 | xsignal2 (Qwrong_type_argument, predicate, value); |
7921925c JB |
124 | } |
125 | ||
dfcf069d | 126 | void |
7921925c JB |
127 | pure_write_error () |
128 | { | |
129 | error ("Attempt to modify read-only object"); | |
130 | } | |
131 | ||
132 | void | |
133 | args_out_of_range (a1, a2) | |
134 | Lisp_Object a1, a2; | |
135 | { | |
740ef0b5 | 136 | xsignal2 (Qargs_out_of_range, a1, a2); |
7921925c JB |
137 | } |
138 | ||
139 | void | |
140 | args_out_of_range_3 (a1, a2, a3) | |
141 | Lisp_Object a1, a2, a3; | |
142 | { | |
740ef0b5 | 143 | xsignal3 (Qargs_out_of_range, a1, a2, a3); |
7921925c JB |
144 | } |
145 | ||
7921925c JB |
146 | /* On some machines, XINT needs a temporary location. |
147 | Here it is, in case it is needed. */ | |
148 | ||
149 | int sign_extend_temp; | |
150 | ||
151 | /* On a few machines, XINT can only be done by calling this. */ | |
152 | ||
153 | int | |
154 | sign_extend_lisp_int (num) | |
a0ed95ea | 155 | EMACS_INT num; |
7921925c | 156 | { |
a0ed95ea RS |
157 | if (num & (((EMACS_INT) 1) << (VALBITS - 1))) |
158 | return num | (((EMACS_INT) (-1)) << VALBITS); | |
7921925c | 159 | else |
a0ed95ea | 160 | return num & ((((EMACS_INT) 1) << VALBITS) - 1); |
7921925c JB |
161 | } |
162 | \f | |
163 | /* Data type predicates */ | |
164 | ||
165 | DEFUN ("eq", Feq, Seq, 2, 2, 0, | |
8c1a1077 PJ |
166 | doc: /* Return t if the two args are the same Lisp object. */) |
167 | (obj1, obj2) | |
7921925c JB |
168 | Lisp_Object obj1, obj2; |
169 | { | |
170 | if (EQ (obj1, obj2)) | |
171 | return Qt; | |
172 | return Qnil; | |
173 | } | |
174 | ||
8c1a1077 PJ |
175 | DEFUN ("null", Fnull, Snull, 1, 1, 0, |
176 | doc: /* Return t if OBJECT is nil. */) | |
177 | (object) | |
39bcc759 | 178 | Lisp_Object object; |
7921925c | 179 | { |
39bcc759 | 180 | if (NILP (object)) |
7921925c JB |
181 | return Qt; |
182 | return Qnil; | |
183 | } | |
184 | ||
39bcc759 | 185 | DEFUN ("type-of", Ftype_of, Stype_of, 1, 1, 0, |
8c1a1077 PJ |
186 | doc: /* Return a symbol representing the type of OBJECT. |
187 | The symbol returned names the object's basic type; | |
188 | for example, (type-of 1) returns `integer'. */) | |
189 | (object) | |
39bcc759 RS |
190 | Lisp_Object object; |
191 | { | |
8e50cc2d | 192 | switch (XTYPE (object)) |
39bcc759 RS |
193 | { |
194 | case Lisp_Int: | |
195 | return Qinteger; | |
196 | ||
197 | case Lisp_Symbol: | |
198 | return Qsymbol; | |
199 | ||
200 | case Lisp_String: | |
201 | return Qstring; | |
202 | ||
203 | case Lisp_Cons: | |
204 | return Qcons; | |
205 | ||
206 | case Lisp_Misc: | |
324a6eef | 207 | switch (XMISCTYPE (object)) |
39bcc759 RS |
208 | { |
209 | case Lisp_Misc_Marker: | |
210 | return Qmarker; | |
211 | case Lisp_Misc_Overlay: | |
212 | return Qoverlay; | |
213 | case Lisp_Misc_Float: | |
214 | return Qfloat; | |
215 | } | |
216 | abort (); | |
217 | ||
218 | case Lisp_Vectorlike: | |
8e50cc2d | 219 | if (WINDOW_CONFIGURATIONP (object)) |
39bcc759 | 220 | return Qwindow_configuration; |
8e50cc2d | 221 | if (PROCESSP (object)) |
39bcc759 | 222 | return Qprocess; |
8e50cc2d | 223 | if (WINDOWP (object)) |
39bcc759 | 224 | return Qwindow; |
8e50cc2d | 225 | if (SUBRP (object)) |
39bcc759 | 226 | return Qsubr; |
8e50cc2d | 227 | if (COMPILEDP (object)) |
39bcc759 | 228 | return Qcompiled_function; |
8e50cc2d | 229 | if (BUFFERP (object)) |
39bcc759 | 230 | return Qbuffer; |
8e50cc2d | 231 | if (CHAR_TABLE_P (object)) |
fc67d5be | 232 | return Qchar_table; |
8e50cc2d | 233 | if (BOOL_VECTOR_P (object)) |
fc67d5be | 234 | return Qbool_vector; |
8e50cc2d | 235 | if (FRAMEP (object)) |
39bcc759 | 236 | return Qframe; |
8e50cc2d | 237 | if (HASH_TABLE_P (object)) |
81dc5de5 | 238 | return Qhash_table; |
39bcc759 RS |
239 | return Qvector; |
240 | ||
39bcc759 RS |
241 | case Lisp_Float: |
242 | return Qfloat; | |
39bcc759 RS |
243 | |
244 | default: | |
245 | abort (); | |
246 | } | |
247 | } | |
248 | ||
8c1a1077 PJ |
249 | DEFUN ("consp", Fconsp, Sconsp, 1, 1, 0, |
250 | doc: /* Return t if OBJECT is a cons cell. */) | |
251 | (object) | |
39bcc759 | 252 | Lisp_Object object; |
7921925c | 253 | { |
39bcc759 | 254 | if (CONSP (object)) |
7921925c JB |
255 | return Qt; |
256 | return Qnil; | |
257 | } | |
258 | ||
25638b07 | 259 | DEFUN ("atom", Fatom, Satom, 1, 1, 0, |
8c1a1077 PJ |
260 | doc: /* Return t if OBJECT is not a cons cell. This includes nil. */) |
261 | (object) | |
39bcc759 | 262 | Lisp_Object object; |
7921925c | 263 | { |
39bcc759 | 264 | if (CONSP (object)) |
7921925c JB |
265 | return Qnil; |
266 | return Qt; | |
267 | } | |
268 | ||
25638b07 | 269 | DEFUN ("listp", Flistp, Slistp, 1, 1, 0, |
4cdcdcc9 LT |
270 | doc: /* Return t if OBJECT is a list, that is, a cons cell or nil. |
271 | Otherwise, return nil. */) | |
8c1a1077 | 272 | (object) |
39bcc759 | 273 | Lisp_Object object; |
7921925c | 274 | { |
39bcc759 | 275 | if (CONSP (object) || NILP (object)) |
7921925c JB |
276 | return Qt; |
277 | return Qnil; | |
278 | } | |
279 | ||
25638b07 | 280 | DEFUN ("nlistp", Fnlistp, Snlistp, 1, 1, 0, |
8c1a1077 PJ |
281 | doc: /* Return t if OBJECT is not a list. Lists include nil. */) |
282 | (object) | |
39bcc759 | 283 | Lisp_Object object; |
7921925c | 284 | { |
39bcc759 | 285 | if (CONSP (object) || NILP (object)) |
7921925c JB |
286 | return Qnil; |
287 | return Qt; | |
288 | } | |
289 | \f | |
25638b07 | 290 | DEFUN ("symbolp", Fsymbolp, Ssymbolp, 1, 1, 0, |
8c1a1077 PJ |
291 | doc: /* Return t if OBJECT is a symbol. */) |
292 | (object) | |
39bcc759 | 293 | Lisp_Object object; |
7921925c | 294 | { |
39bcc759 | 295 | if (SYMBOLP (object)) |
7921925c JB |
296 | return Qt; |
297 | return Qnil; | |
298 | } | |
299 | ||
cda9b832 DL |
300 | /* Define this in C to avoid unnecessarily consing up the symbol |
301 | name. */ | |
302 | DEFUN ("keywordp", Fkeywordp, Skeywordp, 1, 1, 0, | |
8c1a1077 PJ |
303 | doc: /* Return t if OBJECT is a keyword. |
304 | This means that it is a symbol with a print name beginning with `:' | |
305 | interned in the initial obarray. */) | |
306 | (object) | |
cda9b832 DL |
307 | Lisp_Object object; |
308 | { | |
309 | if (SYMBOLP (object) | |
d5db4077 | 310 | && SREF (SYMBOL_NAME (object), 0) == ':' |
f35d5bad | 311 | && SYMBOL_INTERNED_IN_INITIAL_OBARRAY_P (object)) |
cda9b832 DL |
312 | return Qt; |
313 | return Qnil; | |
314 | } | |
315 | ||
25638b07 | 316 | DEFUN ("vectorp", Fvectorp, Svectorp, 1, 1, 0, |
8c1a1077 PJ |
317 | doc: /* Return t if OBJECT is a vector. */) |
318 | (object) | |
39bcc759 | 319 | Lisp_Object object; |
7921925c | 320 | { |
39bcc759 | 321 | if (VECTORP (object)) |
7921925c JB |
322 | return Qt; |
323 | return Qnil; | |
324 | } | |
325 | ||
25638b07 | 326 | DEFUN ("stringp", Fstringp, Sstringp, 1, 1, 0, |
8c1a1077 PJ |
327 | doc: /* Return t if OBJECT is a string. */) |
328 | (object) | |
39bcc759 | 329 | Lisp_Object object; |
7921925c | 330 | { |
39bcc759 | 331 | if (STRINGP (object)) |
7921925c JB |
332 | return Qt; |
333 | return Qnil; | |
334 | } | |
335 | ||
25638b07 | 336 | DEFUN ("multibyte-string-p", Fmultibyte_string_p, Smultibyte_string_p, |
8c1a1077 PJ |
337 | 1, 1, 0, |
338 | doc: /* Return t if OBJECT is a multibyte string. */) | |
339 | (object) | |
25638b07 RS |
340 | Lisp_Object object; |
341 | { | |
342 | if (STRINGP (object) && STRING_MULTIBYTE (object)) | |
343 | return Qt; | |
344 | return Qnil; | |
345 | } | |
346 | ||
347 | DEFUN ("char-table-p", Fchar_table_p, Schar_table_p, 1, 1, 0, | |
8c1a1077 PJ |
348 | doc: /* Return t if OBJECT is a char-table. */) |
349 | (object) | |
4d276982 RS |
350 | Lisp_Object object; |
351 | { | |
352 | if (CHAR_TABLE_P (object)) | |
353 | return Qt; | |
354 | return Qnil; | |
355 | } | |
356 | ||
7f0edce7 RS |
357 | DEFUN ("vector-or-char-table-p", Fvector_or_char_table_p, |
358 | Svector_or_char_table_p, 1, 1, 0, | |
8c1a1077 PJ |
359 | doc: /* Return t if OBJECT is a char-table or vector. */) |
360 | (object) | |
7f0edce7 RS |
361 | Lisp_Object object; |
362 | { | |
363 | if (VECTORP (object) || CHAR_TABLE_P (object)) | |
364 | return Qt; | |
365 | return Qnil; | |
366 | } | |
367 | ||
8c1a1077 PJ |
368 | DEFUN ("bool-vector-p", Fbool_vector_p, Sbool_vector_p, 1, 1, 0, |
369 | doc: /* Return t if OBJECT is a bool-vector. */) | |
370 | (object) | |
4d276982 RS |
371 | Lisp_Object object; |
372 | { | |
373 | if (BOOL_VECTOR_P (object)) | |
374 | return Qt; | |
375 | return Qnil; | |
376 | } | |
377 | ||
8c1a1077 PJ |
378 | DEFUN ("arrayp", Farrayp, Sarrayp, 1, 1, 0, |
379 | doc: /* Return t if OBJECT is an array (string or vector). */) | |
380 | (object) | |
39bcc759 | 381 | Lisp_Object object; |
7921925c | 382 | { |
0c64a8cd | 383 | if (ARRAYP (object)) |
7921925c JB |
384 | return Qt; |
385 | return Qnil; | |
386 | } | |
387 | ||
388 | DEFUN ("sequencep", Fsequencep, Ssequencep, 1, 1, 0, | |
8c1a1077 PJ |
389 | doc: /* Return t if OBJECT is a sequence (list or array). */) |
390 | (object) | |
39bcc759 | 391 | register Lisp_Object object; |
7921925c | 392 | { |
0c64a8cd | 393 | if (CONSP (object) || NILP (object) || ARRAYP (object)) |
7921925c JB |
394 | return Qt; |
395 | return Qnil; | |
396 | } | |
397 | ||
8c1a1077 PJ |
398 | DEFUN ("bufferp", Fbufferp, Sbufferp, 1, 1, 0, |
399 | doc: /* Return t if OBJECT is an editor buffer. */) | |
400 | (object) | |
39bcc759 | 401 | Lisp_Object object; |
7921925c | 402 | { |
39bcc759 | 403 | if (BUFFERP (object)) |
7921925c JB |
404 | return Qt; |
405 | return Qnil; | |
406 | } | |
407 | ||
8c1a1077 PJ |
408 | DEFUN ("markerp", Fmarkerp, Smarkerp, 1, 1, 0, |
409 | doc: /* Return t if OBJECT is a marker (editor pointer). */) | |
410 | (object) | |
39bcc759 | 411 | Lisp_Object object; |
7921925c | 412 | { |
39bcc759 | 413 | if (MARKERP (object)) |
7921925c JB |
414 | return Qt; |
415 | return Qnil; | |
416 | } | |
417 | ||
8c1a1077 PJ |
418 | DEFUN ("subrp", Fsubrp, Ssubrp, 1, 1, 0, |
419 | doc: /* Return t if OBJECT is a built-in function. */) | |
420 | (object) | |
39bcc759 | 421 | Lisp_Object object; |
7921925c | 422 | { |
39bcc759 | 423 | if (SUBRP (object)) |
7921925c JB |
424 | return Qt; |
425 | return Qnil; | |
426 | } | |
427 | ||
dbc4e1c1 | 428 | DEFUN ("byte-code-function-p", Fbyte_code_function_p, Sbyte_code_function_p, |
8c1a1077 PJ |
429 | 1, 1, 0, |
430 | doc: /* Return t if OBJECT is a byte-compiled function object. */) | |
431 | (object) | |
39bcc759 | 432 | Lisp_Object object; |
7921925c | 433 | { |
39bcc759 | 434 | if (COMPILEDP (object)) |
7921925c JB |
435 | return Qt; |
436 | return Qnil; | |
437 | } | |
438 | ||
0321d75c | 439 | DEFUN ("char-or-string-p", Fchar_or_string_p, Schar_or_string_p, 1, 1, 0, |
8637f5ee | 440 | doc: /* Return t if OBJECT is a character or a string. */) |
8c1a1077 | 441 | (object) |
39bcc759 | 442 | register Lisp_Object object; |
7921925c | 443 | { |
cfd70f33 | 444 | if (CHARACTERP (object) || STRINGP (object)) |
7921925c JB |
445 | return Qt; |
446 | return Qnil; | |
447 | } | |
448 | \f | |
8c1a1077 PJ |
449 | DEFUN ("integerp", Fintegerp, Sintegerp, 1, 1, 0, |
450 | doc: /* Return t if OBJECT is an integer. */) | |
451 | (object) | |
39bcc759 | 452 | Lisp_Object object; |
7921925c | 453 | { |
39bcc759 | 454 | if (INTEGERP (object)) |
7921925c JB |
455 | return Qt; |
456 | return Qnil; | |
457 | } | |
458 | ||
464f8898 | 459 | DEFUN ("integer-or-marker-p", Finteger_or_marker_p, Sinteger_or_marker_p, 1, 1, 0, |
8c1a1077 PJ |
460 | doc: /* Return t if OBJECT is an integer or a marker (editor pointer). */) |
461 | (object) | |
39bcc759 | 462 | register Lisp_Object object; |
7921925c | 463 | { |
39bcc759 | 464 | if (MARKERP (object) || INTEGERP (object)) |
7921925c JB |
465 | return Qt; |
466 | return Qnil; | |
467 | } | |
468 | ||
0321d75c | 469 | DEFUN ("natnump", Fnatnump, Snatnump, 1, 1, 0, |
8c1a1077 PJ |
470 | doc: /* Return t if OBJECT is a nonnegative integer. */) |
471 | (object) | |
39bcc759 | 472 | Lisp_Object object; |
7921925c | 473 | { |
39bcc759 | 474 | if (NATNUMP (object)) |
7921925c JB |
475 | return Qt; |
476 | return Qnil; | |
477 | } | |
478 | ||
479 | DEFUN ("numberp", Fnumberp, Snumberp, 1, 1, 0, | |
8c1a1077 PJ |
480 | doc: /* Return t if OBJECT is a number (floating point or integer). */) |
481 | (object) | |
39bcc759 | 482 | Lisp_Object object; |
7921925c | 483 | { |
39bcc759 | 484 | if (NUMBERP (object)) |
7921925c | 485 | return Qt; |
dbc4e1c1 JB |
486 | else |
487 | return Qnil; | |
7921925c JB |
488 | } |
489 | ||
490 | DEFUN ("number-or-marker-p", Fnumber_or_marker_p, | |
491 | Snumber_or_marker_p, 1, 1, 0, | |
8c1a1077 PJ |
492 | doc: /* Return t if OBJECT is a number or a marker. */) |
493 | (object) | |
39bcc759 | 494 | Lisp_Object object; |
7921925c | 495 | { |
39bcc759 | 496 | if (NUMBERP (object) || MARKERP (object)) |
7921925c JB |
497 | return Qt; |
498 | return Qnil; | |
499 | } | |
464f8898 | 500 | |
464f8898 | 501 | DEFUN ("floatp", Ffloatp, Sfloatp, 1, 1, 0, |
8c1a1077 PJ |
502 | doc: /* Return t if OBJECT is a floating point number. */) |
503 | (object) | |
39bcc759 | 504 | Lisp_Object object; |
464f8898 | 505 | { |
39bcc759 | 506 | if (FLOATP (object)) |
464f8898 RS |
507 | return Qt; |
508 | return Qnil; | |
509 | } | |
cc94f3b2 | 510 | |
7921925c JB |
511 | \f |
512 | /* Extract and set components of lists */ | |
513 | ||
514 | DEFUN ("car", Fcar, Scar, 1, 1, 0, | |
8c1a1077 | 515 | doc: /* Return the car of LIST. If arg is nil, return nil. |
9701c742 LT |
516 | Error if arg is not nil and not a cons cell. See also `car-safe'. |
517 | ||
da46c5be LT |
518 | See Info node `(elisp)Cons Cells' for a discussion of related basic |
519 | Lisp concepts such as car, cdr, cons cell and list. */) | |
8c1a1077 | 520 | (list) |
7921925c JB |
521 | register Lisp_Object list; |
522 | { | |
0c64a8cd | 523 | return CAR (list); |
7921925c JB |
524 | } |
525 | ||
526 | DEFUN ("car-safe", Fcar_safe, Scar_safe, 1, 1, 0, | |
8c1a1077 PJ |
527 | doc: /* Return the car of OBJECT if it is a cons cell, or else nil. */) |
528 | (object) | |
7921925c JB |
529 | Lisp_Object object; |
530 | { | |
0c64a8cd | 531 | return CAR_SAFE (object); |
7921925c JB |
532 | } |
533 | ||
534 | DEFUN ("cdr", Fcdr, Scdr, 1, 1, 0, | |
8c1a1077 | 535 | doc: /* Return the cdr of LIST. If arg is nil, return nil. |
9701c742 LT |
536 | Error if arg is not nil and not a cons cell. See also `cdr-safe'. |
537 | ||
da46c5be LT |
538 | See Info node `(elisp)Cons Cells' for a discussion of related basic |
539 | Lisp concepts such as cdr, car, cons cell and list. */) | |
8c1a1077 | 540 | (list) |
7921925c JB |
541 | register Lisp_Object list; |
542 | { | |
0c64a8cd | 543 | return CDR (list); |
7921925c JB |
544 | } |
545 | ||
546 | DEFUN ("cdr-safe", Fcdr_safe, Scdr_safe, 1, 1, 0, | |
8c1a1077 PJ |
547 | doc: /* Return the cdr of OBJECT if it is a cons cell, or else nil. */) |
548 | (object) | |
7921925c JB |
549 | Lisp_Object object; |
550 | { | |
0c64a8cd | 551 | return CDR_SAFE (object); |
7921925c JB |
552 | } |
553 | ||
554 | DEFUN ("setcar", Fsetcar, Ssetcar, 2, 2, 0, | |
8c1a1077 PJ |
555 | doc: /* Set the car of CELL to be NEWCAR. Returns NEWCAR. */) |
556 | (cell, newcar) | |
7921925c JB |
557 | register Lisp_Object cell, newcar; |
558 | { | |
0c64a8cd | 559 | CHECK_CONS (cell); |
7921925c | 560 | CHECK_IMPURE (cell); |
f3fbd155 | 561 | XSETCAR (cell, newcar); |
7921925c JB |
562 | return newcar; |
563 | } | |
564 | ||
565 | DEFUN ("setcdr", Fsetcdr, Ssetcdr, 2, 2, 0, | |
8c1a1077 PJ |
566 | doc: /* Set the cdr of CELL to be NEWCDR. Returns NEWCDR. */) |
567 | (cell, newcdr) | |
7921925c JB |
568 | register Lisp_Object cell, newcdr; |
569 | { | |
0c64a8cd | 570 | CHECK_CONS (cell); |
7921925c | 571 | CHECK_IMPURE (cell); |
f3fbd155 | 572 | XSETCDR (cell, newcdr); |
7921925c JB |
573 | return newcdr; |
574 | } | |
575 | \f | |
576 | /* Extract and set components of symbols */ | |
577 | ||
8c1a1077 PJ |
578 | DEFUN ("boundp", Fboundp, Sboundp, 1, 1, 0, |
579 | doc: /* Return t if SYMBOL's value is not void. */) | |
580 | (symbol) | |
d9c2a0f2 | 581 | register Lisp_Object symbol; |
7921925c JB |
582 | { |
583 | Lisp_Object valcontents; | |
b7826503 | 584 | CHECK_SYMBOL (symbol); |
7921925c | 585 | |
f35d5bad | 586 | valcontents = SYMBOL_VALUE (symbol); |
7921925c | 587 | |
67ee9f6e | 588 | if (BUFFER_LOCAL_VALUEP (valcontents)) |
d9c2a0f2 | 589 | valcontents = swap_in_symval_forwarding (symbol, valcontents); |
7921925c | 590 | |
1bfcade3 | 591 | return (EQ (valcontents, Qunbound) ? Qnil : Qt); |
7921925c JB |
592 | } |
593 | ||
8c1a1077 PJ |
594 | DEFUN ("fboundp", Ffboundp, Sfboundp, 1, 1, 0, |
595 | doc: /* Return t if SYMBOL's function definition is not void. */) | |
596 | (symbol) | |
d9c2a0f2 | 597 | register Lisp_Object symbol; |
7921925c | 598 | { |
b7826503 | 599 | CHECK_SYMBOL (symbol); |
d9c2a0f2 | 600 | return (EQ (XSYMBOL (symbol)->function, Qunbound) ? Qnil : Qt); |
7921925c JB |
601 | } |
602 | ||
8c1a1077 | 603 | DEFUN ("makunbound", Fmakunbound, Smakunbound, 1, 1, 0, |
bfb96cb7 FP |
604 | doc: /* Make SYMBOL's value be void. |
605 | Return SYMBOL. */) | |
8c1a1077 | 606 | (symbol) |
d9c2a0f2 | 607 | register Lisp_Object symbol; |
7921925c | 608 | { |
b7826503 | 609 | CHECK_SYMBOL (symbol); |
64ec26d6 | 610 | if (SYMBOL_CONSTANT_P (symbol)) |
740ef0b5 | 611 | xsignal1 (Qsetting_constant, symbol); |
d9c2a0f2 EN |
612 | Fset (symbol, Qunbound); |
613 | return symbol; | |
7921925c JB |
614 | } |
615 | ||
8c1a1077 | 616 | DEFUN ("fmakunbound", Ffmakunbound, Sfmakunbound, 1, 1, 0, |
bfb96cb7 FP |
617 | doc: /* Make SYMBOL's function definition be void. |
618 | Return SYMBOL. */) | |
8c1a1077 | 619 | (symbol) |
d9c2a0f2 | 620 | register Lisp_Object symbol; |
7921925c | 621 | { |
b7826503 | 622 | CHECK_SYMBOL (symbol); |
d9c2a0f2 | 623 | if (NILP (symbol) || EQ (symbol, Qt)) |
740ef0b5 | 624 | xsignal1 (Qsetting_constant, symbol); |
d9c2a0f2 EN |
625 | XSYMBOL (symbol)->function = Qunbound; |
626 | return symbol; | |
7921925c JB |
627 | } |
628 | ||
629 | DEFUN ("symbol-function", Fsymbol_function, Ssymbol_function, 1, 1, 0, | |
8c1a1077 PJ |
630 | doc: /* Return SYMBOL's function definition. Error if that is void. */) |
631 | (symbol) | |
ffd56f97 | 632 | register Lisp_Object symbol; |
7921925c | 633 | { |
b7826503 | 634 | CHECK_SYMBOL (symbol); |
740ef0b5 KS |
635 | if (!EQ (XSYMBOL (symbol)->function, Qunbound)) |
636 | return XSYMBOL (symbol)->function; | |
637 | xsignal1 (Qvoid_function, symbol); | |
7921925c JB |
638 | } |
639 | ||
8c1a1077 PJ |
640 | DEFUN ("symbol-plist", Fsymbol_plist, Ssymbol_plist, 1, 1, 0, |
641 | doc: /* Return SYMBOL's property list. */) | |
642 | (symbol) | |
d9c2a0f2 | 643 | register Lisp_Object symbol; |
7921925c | 644 | { |
b7826503 | 645 | CHECK_SYMBOL (symbol); |
d9c2a0f2 | 646 | return XSYMBOL (symbol)->plist; |
7921925c JB |
647 | } |
648 | ||
8c1a1077 PJ |
649 | DEFUN ("symbol-name", Fsymbol_name, Ssymbol_name, 1, 1, 0, |
650 | doc: /* Return SYMBOL's name, a string. */) | |
651 | (symbol) | |
d9c2a0f2 | 652 | register Lisp_Object symbol; |
7921925c JB |
653 | { |
654 | register Lisp_Object name; | |
655 | ||
b7826503 | 656 | CHECK_SYMBOL (symbol); |
84023177 | 657 | name = SYMBOL_NAME (symbol); |
7921925c JB |
658 | return name; |
659 | } | |
660 | ||
661 | DEFUN ("fset", Ffset, Sfset, 2, 2, 0, | |
8c1a1077 PJ |
662 | doc: /* Set SYMBOL's function definition to DEFINITION, and return DEFINITION. */) |
663 | (symbol, definition) | |
8c0b5540 | 664 | register Lisp_Object symbol, definition; |
d9c2a0f2 | 665 | { |
764ea377 JB |
666 | register Lisp_Object function; |
667 | ||
b7826503 | 668 | CHECK_SYMBOL (symbol); |
d9c2a0f2 | 669 | if (NILP (symbol) || EQ (symbol, Qt)) |
740ef0b5 | 670 | xsignal1 (Qsetting_constant, symbol); |
764ea377 JB |
671 | |
672 | function = XSYMBOL (symbol)->function; | |
673 | ||
674 | if (!NILP (Vautoload_queue) && !EQ (function, Qunbound)) | |
675 | Vautoload_queue = Fcons (Fcons (symbol, function), Vautoload_queue); | |
676 | ||
677 | if (CONSP (function) && EQ (XCAR (function), Qautoload)) | |
678 | Fput (symbol, Qautoload, XCDR (function)); | |
679 | ||
8c0b5540 | 680 | XSYMBOL (symbol)->function = definition; |
f845f2c9 | 681 | /* Handle automatic advice activation */ |
d9c2a0f2 | 682 | if (CONSP (XSYMBOL (symbol)->plist) && !NILP (Fget (symbol, Qad_advice_info))) |
f845f2c9 | 683 | { |
c1307a23 | 684 | call2 (Qad_activate_internal, symbol, Qnil); |
8c0b5540 | 685 | definition = XSYMBOL (symbol)->function; |
f845f2c9 | 686 | } |
8c0b5540 | 687 | return definition; |
7921925c JB |
688 | } |
689 | ||
d2fde41d SM |
690 | extern Lisp_Object Qfunction_documentation; |
691 | ||
692 | DEFUN ("defalias", Fdefalias, Sdefalias, 2, 3, 0, | |
8c1a1077 | 693 | doc: /* Set SYMBOL's function definition to DEFINITION, and return DEFINITION. |
96143227 RS |
694 | Associates the function with the current load file, if any. |
695 | The optional third argument DOCSTRING specifies the documentation string | |
696 | for SYMBOL; if it is omitted or nil, SYMBOL uses the documentation string | |
697 | determined by DEFINITION. */) | |
d2fde41d SM |
698 | (symbol, definition, docstring) |
699 | register Lisp_Object symbol, definition, docstring; | |
fc08c367 | 700 | { |
8a658a52 | 701 | CHECK_SYMBOL (symbol); |
894f6538 RS |
702 | if (CONSP (XSYMBOL (symbol)->function) |
703 | && EQ (XCAR (XSYMBOL (symbol)->function), Qautoload)) | |
704 | LOADHIST_ATTACH (Fcons (Qt, symbol)); | |
32f532b7 | 705 | definition = Ffset (symbol, definition); |
62a29071 | 706 | LOADHIST_ATTACH (Fcons (Qdefun, symbol)); |
d2fde41d SM |
707 | if (!NILP (docstring)) |
708 | Fput (symbol, Qfunction_documentation, docstring); | |
73e0d965 | 709 | return definition; |
fc08c367 RS |
710 | } |
711 | ||
7921925c | 712 | DEFUN ("setplist", Fsetplist, Ssetplist, 2, 2, 0, |
6b61353c | 713 | doc: /* Set SYMBOL's property list to NEWPLIST, and return NEWPLIST. */) |
8c1a1077 | 714 | (symbol, newplist) |
d9c2a0f2 | 715 | register Lisp_Object symbol, newplist; |
7921925c | 716 | { |
b7826503 | 717 | CHECK_SYMBOL (symbol); |
d9c2a0f2 | 718 | XSYMBOL (symbol)->plist = newplist; |
7921925c JB |
719 | return newplist; |
720 | } | |
ffd56f97 | 721 | |
6f0e897f | 722 | DEFUN ("subr-arity", Fsubr_arity, Ssubr_arity, 1, 1, 0, |
8c1a1077 PJ |
723 | doc: /* Return minimum and maximum number of args allowed for SUBR. |
724 | SUBR must be a built-in function. | |
725 | The returned value is a pair (MIN . MAX). MIN is the minimum number | |
726 | of args. MAX is the maximum number or the symbol `many', for a | |
727 | function with `&rest' args, or `unevalled' for a special form. */) | |
728 | (subr) | |
6f0e897f DL |
729 | Lisp_Object subr; |
730 | { | |
731 | short minargs, maxargs; | |
0c64a8cd | 732 | CHECK_SUBR (subr); |
6f0e897f DL |
733 | minargs = XSUBR (subr)->min_args; |
734 | maxargs = XSUBR (subr)->max_args; | |
735 | if (maxargs == MANY) | |
736 | return Fcons (make_number (minargs), Qmany); | |
737 | else if (maxargs == UNEVALLED) | |
738 | return Fcons (make_number (minargs), Qunevalled); | |
739 | else | |
740 | return Fcons (make_number (minargs), make_number (maxargs)); | |
741 | } | |
742 | ||
0fddae66 SM |
743 | DEFUN ("subr-name", Fsubr_name, Ssubr_name, 1, 1, 0, |
744 | doc: /* Return name of subroutine SUBR. | |
745 | SUBR must be a built-in function. */) | |
746 | (subr) | |
747 | Lisp_Object subr; | |
748 | { | |
749 | const char *name; | |
0c64a8cd | 750 | CHECK_SUBR (subr); |
0fddae66 SM |
751 | name = XSUBR (subr)->symbol_name; |
752 | return make_string (name, strlen (name)); | |
753 | } | |
754 | ||
6b61353c KH |
755 | DEFUN ("interactive-form", Finteractive_form, Sinteractive_form, 1, 1, 0, |
756 | doc: /* Return the interactive form of CMD or nil if none. | |
df133612 LT |
757 | If CMD is not a command, the return value is nil. |
758 | Value, if non-nil, is a list \(interactive SPEC). */) | |
6b61353c KH |
759 | (cmd) |
760 | Lisp_Object cmd; | |
cc515226 | 761 | { |
c4f46926 | 762 | Lisp_Object fun = indirect_function (cmd); /* Check cycles. */ |
764ea377 | 763 | |
c4f46926 SM |
764 | if (NILP (fun) || EQ (fun, Qunbound)) |
765 | return Qnil; | |
766 | ||
767 | /* Use an `interactive-form' property if present, analogous to the | |
768 | function-documentation property. */ | |
769 | fun = cmd; | |
770 | while (SYMBOLP (fun)) | |
771 | { | |
772 | Lisp_Object tmp = Fget (fun, intern ("interactive-form")); | |
773 | if (!NILP (tmp)) | |
774 | return tmp; | |
775 | else | |
776 | fun = Fsymbol_function (fun); | |
777 | } | |
6b61353c KH |
778 | |
779 | if (SUBRP (fun)) | |
780 | { | |
8a6d230a MC |
781 | char *spec = XSUBR (fun)->intspec; |
782 | if (spec) | |
783 | return list2 (Qinteractive, | |
784 | (*spec != '(') ? build_string (spec) : | |
785 | Fcar (Fread_from_string (build_string (spec), Qnil, Qnil))); | |
6b61353c KH |
786 | } |
787 | else if (COMPILEDP (fun)) | |
788 | { | |
789 | if ((ASIZE (fun) & PSEUDOVECTOR_SIZE_MASK) > COMPILED_INTERACTIVE) | |
790 | return list2 (Qinteractive, AREF (fun, COMPILED_INTERACTIVE)); | |
791 | } | |
792 | else if (CONSP (fun)) | |
793 | { | |
794 | Lisp_Object funcar = XCAR (fun); | |
795 | if (EQ (funcar, Qlambda)) | |
796 | return Fassq (Qinteractive, Fcdr (XCDR (fun))); | |
797 | else if (EQ (funcar, Qautoload)) | |
798 | { | |
799 | struct gcpro gcpro1; | |
800 | GCPRO1 (cmd); | |
801 | do_autoload (fun, cmd); | |
802 | UNGCPRO; | |
803 | return Finteractive_form (cmd); | |
804 | } | |
805 | } | |
cc515226 GM |
806 | return Qnil; |
807 | } | |
808 | ||
7921925c | 809 | \f |
f35d5bad GM |
810 | /*********************************************************************** |
811 | Getting and Setting Values of Symbols | |
812 | ***********************************************************************/ | |
813 | ||
814 | /* Return the symbol holding SYMBOL's value. Signal | |
815 | `cyclic-variable-indirection' if SYMBOL's chain of variable | |
816 | indirections contains a loop. */ | |
817 | ||
818 | Lisp_Object | |
819 | indirect_variable (symbol) | |
820 | Lisp_Object symbol; | |
821 | { | |
822 | Lisp_Object tortoise, hare; | |
823 | ||
824 | hare = tortoise = symbol; | |
825 | ||
826 | while (XSYMBOL (hare)->indirect_variable) | |
827 | { | |
828 | hare = XSYMBOL (hare)->value; | |
829 | if (!XSYMBOL (hare)->indirect_variable) | |
830 | break; | |
bfb96cb7 | 831 | |
f35d5bad GM |
832 | hare = XSYMBOL (hare)->value; |
833 | tortoise = XSYMBOL (tortoise)->value; | |
834 | ||
835 | if (EQ (hare, tortoise)) | |
740ef0b5 | 836 | xsignal1 (Qcyclic_variable_indirection, symbol); |
f35d5bad GM |
837 | } |
838 | ||
839 | return hare; | |
840 | } | |
841 | ||
842 | ||
843 | DEFUN ("indirect-variable", Findirect_variable, Sindirect_variable, 1, 1, 0, | |
8c1a1077 PJ |
844 | doc: /* Return the variable at the end of OBJECT's variable chain. |
845 | If OBJECT is a symbol, follow all variable indirections and return the final | |
846 | variable. If OBJECT is not a symbol, just return it. | |
847 | Signal a cyclic-variable-indirection error if there is a loop in the | |
848 | variable chain of symbols. */) | |
849 | (object) | |
f35d5bad GM |
850 | Lisp_Object object; |
851 | { | |
852 | if (SYMBOLP (object)) | |
853 | object = indirect_variable (object); | |
854 | return object; | |
855 | } | |
856 | ||
7921925c JB |
857 | |
858 | /* Given the raw contents of a symbol value cell, | |
859 | return the Lisp value of the symbol. | |
860 | This does not handle buffer-local variables; use | |
861 | swap_in_symval_forwarding for that. */ | |
862 | ||
863 | Lisp_Object | |
864 | do_symval_forwarding (valcontents) | |
865 | register Lisp_Object valcontents; | |
866 | { | |
867 | register Lisp_Object val; | |
46b2ac21 | 868 | if (MISCP (valcontents)) |
324a6eef | 869 | switch (XMISCTYPE (valcontents)) |
46b2ac21 KH |
870 | { |
871 | case Lisp_Misc_Intfwd: | |
872 | XSETINT (val, *XINTFWD (valcontents)->intvar); | |
873 | return val; | |
7921925c | 874 | |
46b2ac21 KH |
875 | case Lisp_Misc_Boolfwd: |
876 | return (*XBOOLFWD (valcontents)->boolvar ? Qt : Qnil); | |
7921925c | 877 | |
46b2ac21 KH |
878 | case Lisp_Misc_Objfwd: |
879 | return *XOBJFWD (valcontents)->objvar; | |
7921925c | 880 | |
46b2ac21 | 881 | case Lisp_Misc_Buffer_Objfwd: |
8787dd73 SM |
882 | return PER_BUFFER_VALUE (current_buffer, |
883 | XBUFFER_OBJFWD (valcontents)->offset); | |
7403b5c8 | 884 | |
e5f8af9e | 885 | case Lisp_Misc_Kboard_Objfwd: |
c40bb1ba KL |
886 | /* We used to simply use current_kboard here, but from Lisp |
887 | code, it's value is often unexpected. It seems nicer to | |
888 | allow constructions like this to work as intuitively expected: | |
889 | ||
890 | (with-selected-frame frame | |
891 | (define-key local-function-map "\eOP" [f1])) | |
892 | ||
893 | On the other hand, this affects the semantics of | |
894 | last-command and real-last-command, and people may rely on | |
895 | that. I took a quick look at the Lisp codebase, and I | |
896 | don't think anything will break. --lorentey */ | |
8787dd73 SM |
897 | return *(Lisp_Object *)(XKBOARD_OBJFWD (valcontents)->offset |
898 | + (char *)FRAME_KBOARD (SELECTED_FRAME ())); | |
46b2ac21 | 899 | } |
7921925c JB |
900 | return valcontents; |
901 | } | |
902 | ||
d9c2a0f2 EN |
903 | /* Store NEWVAL into SYMBOL, where VALCONTENTS is found in the value cell |
904 | of SYMBOL. If SYMBOL is buffer-local, VALCONTENTS should be the | |
7921925c | 905 | buffer-independent contents of the value cell: forwarded just one |
7a283f36 GM |
906 | step past the buffer-localness. |
907 | ||
908 | BUF non-zero means set the value in buffer BUF instead of the | |
909 | current buffer. This only plays a role for per-buffer variables. */ | |
7921925c JB |
910 | |
911 | void | |
7a283f36 | 912 | store_symval_forwarding (symbol, valcontents, newval, buf) |
d9c2a0f2 | 913 | Lisp_Object symbol; |
7921925c | 914 | register Lisp_Object valcontents, newval; |
7a283f36 | 915 | struct buffer *buf; |
7921925c | 916 | { |
0220c518 | 917 | switch (SWITCH_ENUM_CAST (XTYPE (valcontents))) |
7921925c | 918 | { |
46b2ac21 | 919 | case Lisp_Misc: |
324a6eef | 920 | switch (XMISCTYPE (valcontents)) |
46b2ac21 KH |
921 | { |
922 | case Lisp_Misc_Intfwd: | |
b7826503 | 923 | CHECK_NUMBER (newval); |
46b2ac21 | 924 | *XINTFWD (valcontents)->intvar = XINT (newval); |
136eb6ed SM |
925 | /* This can never happen since intvar points to an EMACS_INT |
926 | which is at least large enough to hold a Lisp_Object. | |
927 | if (*XINTFWD (valcontents)->intvar != XINT (newval)) | |
928 | error ("Value out of range for variable `%s'", | |
929 | SDATA (SYMBOL_NAME (symbol))); */ | |
46b2ac21 KH |
930 | break; |
931 | ||
932 | case Lisp_Misc_Boolfwd: | |
64e16c3c | 933 | *XBOOLFWD (valcontents)->boolvar = !NILP (newval); |
46b2ac21 KH |
934 | break; |
935 | ||
936 | case Lisp_Misc_Objfwd: | |
937 | *XOBJFWD (valcontents)->objvar = newval; | |
6b61353c KH |
938 | |
939 | /* If this variable is a default for something stored | |
940 | in the buffer itself, such as default-fill-column, | |
941 | find the buffers that don't have local values for it | |
942 | and update them. */ | |
943 | if (XOBJFWD (valcontents)->objvar > (Lisp_Object *) &buffer_defaults | |
944 | && XOBJFWD (valcontents)->objvar < (Lisp_Object *) (&buffer_defaults + 1)) | |
945 | { | |
946 | int offset = ((char *) XOBJFWD (valcontents)->objvar | |
947 | - (char *) &buffer_defaults); | |
948 | int idx = PER_BUFFER_IDX (offset); | |
949 | ||
43e50e40 | 950 | Lisp_Object tail; |
6b61353c KH |
951 | |
952 | if (idx <= 0) | |
953 | break; | |
954 | ||
955 | for (tail = Vbuffer_alist; CONSP (tail); tail = XCDR (tail)) | |
956 | { | |
957 | Lisp_Object buf; | |
958 | struct buffer *b; | |
959 | ||
960 | buf = Fcdr (XCAR (tail)); | |
961 | if (!BUFFERP (buf)) continue; | |
962 | b = XBUFFER (buf); | |
963 | ||
964 | if (! PER_BUFFER_VALUE_P (b, idx)) | |
965 | PER_BUFFER_VALUE (b, offset) = newval; | |
966 | } | |
967 | } | |
46b2ac21 KH |
968 | break; |
969 | ||
970 | case Lisp_Misc_Buffer_Objfwd: | |
971 | { | |
972 | int offset = XBUFFER_OBJFWD (valcontents)->offset; | |
64e16c3c | 973 | Lisp_Object type = XBUFFER_OBJFWD (valcontents)->slottype; |
46b2ac21 | 974 | |
46b2ac21 KH |
975 | if (! NILP (type) && ! NILP (newval) |
976 | && XTYPE (newval) != XINT (type)) | |
64e16c3c | 977 | buffer_slot_type_mismatch (symbol, XINT (type)); |
46b2ac21 | 978 | |
7a283f36 GM |
979 | if (buf == NULL) |
980 | buf = current_buffer; | |
981 | PER_BUFFER_VALUE (buf, offset) = newval; | |
46b2ac21 | 982 | } |
7403b5c8 KH |
983 | break; |
984 | ||
e5f8af9e | 985 | case Lisp_Misc_Kboard_Objfwd: |
7a283f36 | 986 | { |
c40bb1ba | 987 | char *base = (char *) FRAME_KBOARD (SELECTED_FRAME ()); |
7a283f36 GM |
988 | char *p = base + XKBOARD_OBJFWD (valcontents)->offset; |
989 | *(Lisp_Object *) p = newval; | |
990 | } | |
7403b5c8 KH |
991 | break; |
992 | ||
46b2ac21 KH |
993 | default: |
994 | goto def; | |
995 | } | |
7921925c JB |
996 | break; |
997 | ||
7921925c | 998 | default: |
46b2ac21 | 999 | def: |
f35d5bad | 1000 | valcontents = SYMBOL_VALUE (symbol); |
67ee9f6e | 1001 | if (BUFFER_LOCAL_VALUEP (valcontents)) |
b0c2d1c6 | 1002 | XBUFFER_LOCAL_VALUE (valcontents)->realvalue = newval; |
7921925c | 1003 | else |
f35d5bad | 1004 | SET_SYMBOL_VALUE (symbol, newval); |
7921925c JB |
1005 | } |
1006 | } | |
1007 | ||
b0d53add GM |
1008 | /* Set up SYMBOL to refer to its global binding. |
1009 | This makes it safe to alter the status of other bindings. */ | |
1010 | ||
1011 | void | |
1012 | swap_in_global_binding (symbol) | |
1013 | Lisp_Object symbol; | |
1014 | { | |
262fcd41 SM |
1015 | Lisp_Object valcontents = SYMBOL_VALUE (symbol); |
1016 | struct Lisp_Buffer_Local_Value *blv = XBUFFER_LOCAL_VALUE (valcontents); | |
1017 | Lisp_Object cdr = blv->cdr; | |
b0d53add GM |
1018 | |
1019 | /* Unload the previously loaded binding. */ | |
1020 | Fsetcdr (XCAR (cdr), | |
262fcd41 | 1021 | do_symval_forwarding (blv->realvalue)); |
bfb96cb7 | 1022 | |
b0d53add | 1023 | /* Select the global binding in the symbol. */ |
f3fbd155 | 1024 | XSETCAR (cdr, cdr); |
262fcd41 | 1025 | store_symval_forwarding (symbol, blv->realvalue, XCDR (cdr), NULL); |
b0d53add GM |
1026 | |
1027 | /* Indicate that the global binding is set up now. */ | |
262fcd41 SM |
1028 | blv->frame = Qnil; |
1029 | blv->buffer = Qnil; | |
1030 | blv->found_for_frame = 0; | |
1031 | blv->found_for_buffer = 0; | |
b0d53add GM |
1032 | } |
1033 | ||
2829d05f | 1034 | /* Set up the buffer-local symbol SYMBOL for validity in the current buffer. |
42e975f0 RS |
1035 | VALCONTENTS is the contents of its value cell, |
1036 | which points to a struct Lisp_Buffer_Local_Value. | |
1037 | ||
1038 | Return the value forwarded one step past the buffer-local stage. | |
1039 | This could be another forwarding pointer. */ | |
7921925c JB |
1040 | |
1041 | static Lisp_Object | |
d9c2a0f2 EN |
1042 | swap_in_symval_forwarding (symbol, valcontents) |
1043 | Lisp_Object symbol, valcontents; | |
7921925c | 1044 | { |
7921925c | 1045 | register Lisp_Object tem1; |
bfb96cb7 | 1046 | |
b0c2d1c6 | 1047 | tem1 = XBUFFER_LOCAL_VALUE (valcontents)->buffer; |
7921925c | 1048 | |
42e975f0 RS |
1049 | if (NILP (tem1) |
1050 | || current_buffer != XBUFFER (tem1) | |
1051 | || (XBUFFER_LOCAL_VALUE (valcontents)->check_frame | |
1052 | && ! EQ (selected_frame, XBUFFER_LOCAL_VALUE (valcontents)->frame))) | |
7921925c | 1053 | { |
f35d5bad GM |
1054 | if (XSYMBOL (symbol)->indirect_variable) |
1055 | symbol = indirect_variable (symbol); | |
bfb96cb7 | 1056 | |
42e975f0 | 1057 | /* Unload the previously loaded binding. */ |
7539e11f | 1058 | tem1 = XCAR (XBUFFER_LOCAL_VALUE (valcontents)->cdr); |
8d4afcac | 1059 | Fsetcdr (tem1, |
b0c2d1c6 | 1060 | do_symval_forwarding (XBUFFER_LOCAL_VALUE (valcontents)->realvalue)); |
42e975f0 | 1061 | /* Choose the new binding. */ |
d9c2a0f2 | 1062 | tem1 = assq_no_quit (symbol, current_buffer->local_var_alist); |
b0c2d1c6 RS |
1063 | XBUFFER_LOCAL_VALUE (valcontents)->found_for_frame = 0; |
1064 | XBUFFER_LOCAL_VALUE (valcontents)->found_for_buffer = 0; | |
a33ef3ab | 1065 | if (NILP (tem1)) |
b0c2d1c6 RS |
1066 | { |
1067 | if (XBUFFER_LOCAL_VALUE (valcontents)->check_frame) | |
1cc04aed | 1068 | tem1 = assq_no_quit (symbol, XFRAME (selected_frame)->param_alist); |
b0c2d1c6 RS |
1069 | if (! NILP (tem1)) |
1070 | XBUFFER_LOCAL_VALUE (valcontents)->found_for_frame = 1; | |
1071 | else | |
1072 | tem1 = XBUFFER_LOCAL_VALUE (valcontents)->cdr; | |
1073 | } | |
1074 | else | |
1075 | XBUFFER_LOCAL_VALUE (valcontents)->found_for_buffer = 1; | |
1076 | ||
42e975f0 | 1077 | /* Load the new binding. */ |
f3fbd155 | 1078 | XSETCAR (XBUFFER_LOCAL_VALUE (valcontents)->cdr, tem1); |
b0c2d1c6 | 1079 | XSETBUFFER (XBUFFER_LOCAL_VALUE (valcontents)->buffer, current_buffer); |
1cc04aed | 1080 | XBUFFER_LOCAL_VALUE (valcontents)->frame = selected_frame; |
b0c2d1c6 RS |
1081 | store_symval_forwarding (symbol, |
1082 | XBUFFER_LOCAL_VALUE (valcontents)->realvalue, | |
7a283f36 | 1083 | Fcdr (tem1), NULL); |
7921925c | 1084 | } |
b0c2d1c6 | 1085 | return XBUFFER_LOCAL_VALUE (valcontents)->realvalue; |
7921925c JB |
1086 | } |
1087 | \f | |
14e76af9 JB |
1088 | /* Find the value of a symbol, returning Qunbound if it's not bound. |
1089 | This is helpful for code which just wants to get a variable's value | |
8e6208c5 | 1090 | if it has one, without signaling an error. |
14e76af9 JB |
1091 | Note that it must not be possible to quit |
1092 | within this function. Great care is required for this. */ | |
7921925c | 1093 | |
14e76af9 | 1094 | Lisp_Object |
d9c2a0f2 EN |
1095 | find_symbol_value (symbol) |
1096 | Lisp_Object symbol; | |
7921925c | 1097 | { |
dd8daec5 | 1098 | register Lisp_Object valcontents; |
7921925c | 1099 | register Lisp_Object val; |
bfb96cb7 | 1100 | |
b7826503 | 1101 | CHECK_SYMBOL (symbol); |
f35d5bad | 1102 | valcontents = SYMBOL_VALUE (symbol); |
7921925c | 1103 | |
67ee9f6e | 1104 | if (BUFFER_LOCAL_VALUEP (valcontents)) |
2a359158 | 1105 | valcontents = swap_in_symval_forwarding (symbol, valcontents); |
7921925c | 1106 | |
8787dd73 | 1107 | return do_symval_forwarding (valcontents); |
7921925c JB |
1108 | } |
1109 | ||
14e76af9 | 1110 | DEFUN ("symbol-value", Fsymbol_value, Ssymbol_value, 1, 1, 0, |
8c1a1077 PJ |
1111 | doc: /* Return SYMBOL's value. Error if that is void. */) |
1112 | (symbol) | |
d9c2a0f2 | 1113 | Lisp_Object symbol; |
14e76af9 | 1114 | { |
0671d7c0 | 1115 | Lisp_Object val; |
14e76af9 | 1116 | |
d9c2a0f2 | 1117 | val = find_symbol_value (symbol); |
740ef0b5 | 1118 | if (!EQ (val, Qunbound)) |
14e76af9 | 1119 | return val; |
740ef0b5 KS |
1120 | |
1121 | xsignal1 (Qvoid_variable, symbol); | |
14e76af9 JB |
1122 | } |
1123 | ||
7921925c | 1124 | DEFUN ("set", Fset, Sset, 2, 2, 0, |
8c1a1077 PJ |
1125 | doc: /* Set SYMBOL's value to NEWVAL, and return NEWVAL. */) |
1126 | (symbol, newval) | |
d9c2a0f2 | 1127 | register Lisp_Object symbol, newval; |
05ef7169 | 1128 | { |
2829d05f | 1129 | return set_internal (symbol, newval, current_buffer, 0); |
05ef7169 RS |
1130 | } |
1131 | ||
1f35ce36 RS |
1132 | /* Return 1 if SYMBOL currently has a let-binding |
1133 | which was made in the buffer that is now current. */ | |
1134 | ||
1135 | static int | |
1136 | let_shadows_buffer_binding_p (symbol) | |
1137 | Lisp_Object symbol; | |
1138 | { | |
92426155 | 1139 | volatile struct specbinding *p; |
1f35ce36 RS |
1140 | |
1141 | for (p = specpdl_ptr - 1; p >= specpdl; p--) | |
f35d5bad GM |
1142 | if (p->func == NULL |
1143 | && CONSP (p->symbol)) | |
1144 | { | |
1145 | Lisp_Object let_bound_symbol = XCAR (p->symbol); | |
1146 | if ((EQ (symbol, let_bound_symbol) | |
1147 | || (XSYMBOL (let_bound_symbol)->indirect_variable | |
1148 | && EQ (symbol, indirect_variable (let_bound_symbol)))) | |
1149 | && XBUFFER (XCDR (XCDR (p->symbol))) == current_buffer) | |
1150 | break; | |
1151 | } | |
1f35ce36 | 1152 | |
f35d5bad | 1153 | return p >= specpdl; |
1f35ce36 RS |
1154 | } |
1155 | ||
25638b07 | 1156 | /* Store the value NEWVAL into SYMBOL. |
2829d05f RS |
1157 | If buffer-locality is an issue, BUF specifies which buffer to use. |
1158 | (0 stands for the current buffer.) | |
1159 | ||
05ef7169 RS |
1160 | If BINDFLAG is zero, then if this symbol is supposed to become |
1161 | local in every buffer where it is set, then we make it local. | |
1162 | If BINDFLAG is nonzero, we don't do that. */ | |
1163 | ||
1164 | Lisp_Object | |
2829d05f | 1165 | set_internal (symbol, newval, buf, bindflag) |
05ef7169 | 1166 | register Lisp_Object symbol, newval; |
2829d05f | 1167 | struct buffer *buf; |
05ef7169 | 1168 | int bindflag; |
7921925c | 1169 | { |
1bfcade3 | 1170 | int voide = EQ (newval, Qunbound); |
7921925c | 1171 | |
4c47c973 | 1172 | register Lisp_Object valcontents, innercontents, tem1, current_alist_element; |
7921925c | 1173 | |
2829d05f RS |
1174 | if (buf == 0) |
1175 | buf = current_buffer; | |
1176 | ||
1177 | /* If restoring in a dead buffer, do nothing. */ | |
1178 | if (NILP (buf->name)) | |
1179 | return newval; | |
1180 | ||
b7826503 | 1181 | CHECK_SYMBOL (symbol); |
f35d5bad GM |
1182 | if (SYMBOL_CONSTANT_P (symbol) |
1183 | && (NILP (Fkeywordp (symbol)) | |
1184 | || !EQ (newval, SYMBOL_VALUE (symbol)))) | |
740ef0b5 | 1185 | xsignal1 (Qsetting_constant, symbol); |
4c47c973 | 1186 | |
f35d5bad | 1187 | innercontents = valcontents = SYMBOL_VALUE (symbol); |
bfb96cb7 | 1188 | |
e9ebc175 | 1189 | if (BUFFER_OBJFWDP (valcontents)) |
7921925c | 1190 | { |
999b32fd | 1191 | int offset = XBUFFER_OBJFWD (valcontents)->offset; |
f6cd0527 | 1192 | int idx = PER_BUFFER_IDX (offset); |
999b32fd GM |
1193 | if (idx > 0 |
1194 | && !bindflag | |
1195 | && !let_shadows_buffer_binding_p (symbol)) | |
f6cd0527 | 1196 | SET_PER_BUFFER_VALUE_P (buf, idx, 1); |
7921925c | 1197 | } |
67ee9f6e | 1198 | else if (BUFFER_LOCAL_VALUEP (valcontents)) |
7921925c | 1199 | { |
42e975f0 | 1200 | /* valcontents is a struct Lisp_Buffer_Local_Value. */ |
f35d5bad GM |
1201 | if (XSYMBOL (symbol)->indirect_variable) |
1202 | symbol = indirect_variable (symbol); | |
42e975f0 RS |
1203 | |
1204 | /* What binding is loaded right now? */ | |
b0c2d1c6 | 1205 | current_alist_element |
7539e11f | 1206 | = XCAR (XBUFFER_LOCAL_VALUE (valcontents)->cdr); |
d8cafeb5 JB |
1207 | |
1208 | /* If the current buffer is not the buffer whose binding is | |
42e975f0 RS |
1209 | loaded, or if there may be frame-local bindings and the frame |
1210 | isn't the right one, or if it's a Lisp_Buffer_Local_Value and | |
1211 | the default binding is loaded, the loaded binding may be the | |
1212 | wrong one. */ | |
8801a864 KR |
1213 | if (!BUFFERP (XBUFFER_LOCAL_VALUE (valcontents)->buffer) |
1214 | || buf != XBUFFER (XBUFFER_LOCAL_VALUE (valcontents)->buffer) | |
42e975f0 RS |
1215 | || (XBUFFER_LOCAL_VALUE (valcontents)->check_frame |
1216 | && !EQ (selected_frame, XBUFFER_LOCAL_VALUE (valcontents)->frame)) | |
569c11e3 | 1217 | /* Also unload a global binding (if the var is local_if_set). */ |
136eb6ed SM |
1218 | || (EQ (XCAR (current_alist_element), |
1219 | current_alist_element))) | |
7921925c | 1220 | { |
42e975f0 RS |
1221 | /* The currently loaded binding is not necessarily valid. |
1222 | We need to unload it, and choose a new binding. */ | |
1223 | ||
1224 | /* Write out `realvalue' to the old loaded binding. */ | |
d8cafeb5 | 1225 | Fsetcdr (current_alist_element, |
b0c2d1c6 | 1226 | do_symval_forwarding (XBUFFER_LOCAL_VALUE (valcontents)->realvalue)); |
7921925c | 1227 | |
42e975f0 | 1228 | /* Find the new binding. */ |
2829d05f | 1229 | tem1 = Fassq (symbol, buf->local_var_alist); |
b0c2d1c6 RS |
1230 | XBUFFER_LOCAL_VALUE (valcontents)->found_for_buffer = 1; |
1231 | XBUFFER_LOCAL_VALUE (valcontents)->found_for_frame = 0; | |
1232 | ||
a33ef3ab | 1233 | if (NILP (tem1)) |
d8cafeb5 JB |
1234 | { |
1235 | /* This buffer still sees the default value. */ | |
1236 | ||
569c11e3 | 1237 | /* If the variable is not local_if_set, |
05ef7169 | 1238 | or if this is `let' rather than `set', |
d8cafeb5 | 1239 | make CURRENT-ALIST-ELEMENT point to itself, |
1f35ce36 RS |
1240 | indicating that we're seeing the default value. |
1241 | Likewise if the variable has been let-bound | |
1242 | in the current buffer. */ | |
67ee9f6e | 1243 | if (bindflag || !XBUFFER_LOCAL_VALUE (valcontents)->local_if_set |
1f35ce36 | 1244 | || let_shadows_buffer_binding_p (symbol)) |
b0c2d1c6 RS |
1245 | { |
1246 | XBUFFER_LOCAL_VALUE (valcontents)->found_for_buffer = 0; | |
1247 | ||
1248 | if (XBUFFER_LOCAL_VALUE (valcontents)->check_frame) | |
1cc04aed GM |
1249 | tem1 = Fassq (symbol, |
1250 | XFRAME (selected_frame)->param_alist); | |
d8cafeb5 | 1251 | |
b0c2d1c6 RS |
1252 | if (! NILP (tem1)) |
1253 | XBUFFER_LOCAL_VALUE (valcontents)->found_for_frame = 1; | |
1254 | else | |
1255 | tem1 = XBUFFER_LOCAL_VALUE (valcontents)->cdr; | |
1256 | } | |
05ef7169 | 1257 | /* If it's a Lisp_Buffer_Local_Value, being set not bound, |
1f35ce36 RS |
1258 | and we're not within a let that was made for this buffer, |
1259 | create a new buffer-local binding for the variable. | |
1260 | That means, give this buffer a new assoc for a local value | |
42e975f0 | 1261 | and load that binding. */ |
d8cafeb5 JB |
1262 | else |
1263 | { | |
d2fde41d | 1264 | tem1 = Fcons (symbol, XCDR (current_alist_element)); |
2829d05f RS |
1265 | buf->local_var_alist |
1266 | = Fcons (tem1, buf->local_var_alist); | |
d8cafeb5 JB |
1267 | } |
1268 | } | |
b0c2d1c6 | 1269 | |
42e975f0 | 1270 | /* Record which binding is now loaded. */ |
67ee9f6e | 1271 | XSETCAR (XBUFFER_LOCAL_VALUE (valcontents)->cdr, tem1); |
d8cafeb5 | 1272 | |
8013296c | 1273 | /* Set `buffer' and `frame' slots for the binding now loaded. */ |
2829d05f | 1274 | XSETBUFFER (XBUFFER_LOCAL_VALUE (valcontents)->buffer, buf); |
1cc04aed | 1275 | XBUFFER_LOCAL_VALUE (valcontents)->frame = selected_frame; |
7921925c | 1276 | } |
4c47c973 | 1277 | innercontents = XBUFFER_LOCAL_VALUE (valcontents)->realvalue; |
569c11e3 SM |
1278 | |
1279 | /* Store the new value in the cons-cell. */ | |
1280 | XSETCDR (XCAR (XBUFFER_LOCAL_VALUE (valcontents)->cdr), newval); | |
7921925c | 1281 | } |
d8cafeb5 | 1282 | |
7921925c JB |
1283 | /* If storing void (making the symbol void), forward only through |
1284 | buffer-local indicator, not through Lisp_Objfwd, etc. */ | |
1285 | if (voide) | |
7a283f36 | 1286 | store_symval_forwarding (symbol, Qnil, newval, buf); |
7921925c | 1287 | else |
7a283f36 | 1288 | store_symval_forwarding (symbol, innercontents, newval, buf); |
4c47c973 | 1289 | |
7921925c JB |
1290 | return newval; |
1291 | } | |
1292 | \f | |
1293 | /* Access or set a buffer-local symbol's default value. */ | |
1294 | ||
d9c2a0f2 | 1295 | /* Return the default value of SYMBOL, but don't check for voidness. |
1bfcade3 | 1296 | Return Qunbound if it is void. */ |
7921925c JB |
1297 | |
1298 | Lisp_Object | |
d9c2a0f2 EN |
1299 | default_value (symbol) |
1300 | Lisp_Object symbol; | |
7921925c JB |
1301 | { |
1302 | register Lisp_Object valcontents; | |
1303 | ||
b7826503 | 1304 | CHECK_SYMBOL (symbol); |
f35d5bad | 1305 | valcontents = SYMBOL_VALUE (symbol); |
7921925c JB |
1306 | |
1307 | /* For a built-in buffer-local variable, get the default value | |
1308 | rather than letting do_symval_forwarding get the current value. */ | |
e9ebc175 | 1309 | if (BUFFER_OBJFWDP (valcontents)) |
7921925c | 1310 | { |
999b32fd | 1311 | int offset = XBUFFER_OBJFWD (valcontents)->offset; |
f6cd0527 GM |
1312 | if (PER_BUFFER_IDX (offset) != 0) |
1313 | return PER_BUFFER_DEFAULT (offset); | |
7921925c JB |
1314 | } |
1315 | ||
1316 | /* Handle user-created local variables. */ | |
67ee9f6e | 1317 | if (BUFFER_LOCAL_VALUEP (valcontents)) |
7921925c JB |
1318 | { |
1319 | /* If var is set up for a buffer that lacks a local value for it, | |
1320 | the current value is nominally the default value. | |
42e975f0 | 1321 | But the `realvalue' slot may be more up to date, since |
7921925c JB |
1322 | ordinary setq stores just that slot. So use that. */ |
1323 | Lisp_Object current_alist_element, alist_element_car; | |
1324 | current_alist_element | |
7539e11f KR |
1325 | = XCAR (XBUFFER_LOCAL_VALUE (valcontents)->cdr); |
1326 | alist_element_car = XCAR (current_alist_element); | |
7921925c | 1327 | if (EQ (alist_element_car, current_alist_element)) |
b0c2d1c6 | 1328 | return do_symval_forwarding (XBUFFER_LOCAL_VALUE (valcontents)->realvalue); |
7921925c | 1329 | else |
7539e11f | 1330 | return XCDR (XBUFFER_LOCAL_VALUE (valcontents)->cdr); |
7921925c JB |
1331 | } |
1332 | /* For other variables, get the current value. */ | |
1333 | return do_symval_forwarding (valcontents); | |
1334 | } | |
1335 | ||
1336 | DEFUN ("default-boundp", Fdefault_boundp, Sdefault_boundp, 1, 1, 0, | |
8c1a1077 PJ |
1337 | doc: /* Return t if SYMBOL has a non-void default value. |
1338 | This is the value that is seen in buffers that do not have their own values | |
1339 | for this variable. */) | |
1340 | (symbol) | |
d9c2a0f2 | 1341 | Lisp_Object symbol; |
7921925c JB |
1342 | { |
1343 | register Lisp_Object value; | |
1344 | ||
d9c2a0f2 | 1345 | value = default_value (symbol); |
1bfcade3 | 1346 | return (EQ (value, Qunbound) ? Qnil : Qt); |
7921925c JB |
1347 | } |
1348 | ||
1349 | DEFUN ("default-value", Fdefault_value, Sdefault_value, 1, 1, 0, | |
8c1a1077 PJ |
1350 | doc: /* Return SYMBOL's default value. |
1351 | This is the value that is seen in buffers that do not have their own values | |
1352 | for this variable. The default value is meaningful for variables with | |
1353 | local bindings in certain buffers. */) | |
1354 | (symbol) | |
d9c2a0f2 | 1355 | Lisp_Object symbol; |
7921925c JB |
1356 | { |
1357 | register Lisp_Object value; | |
1358 | ||
d9c2a0f2 | 1359 | value = default_value (symbol); |
740ef0b5 KS |
1360 | if (!EQ (value, Qunbound)) |
1361 | return value; | |
1362 | ||
1363 | xsignal1 (Qvoid_variable, symbol); | |
7921925c JB |
1364 | } |
1365 | ||
1366 | DEFUN ("set-default", Fset_default, Sset_default, 2, 2, 0, | |
6e86a75d | 1367 | doc: /* Set SYMBOL's default value to VALUE. SYMBOL and VALUE are evaluated. |
8c1a1077 PJ |
1368 | The default value is seen in buffers that do not have their own values |
1369 | for this variable. */) | |
1370 | (symbol, value) | |
d9c2a0f2 | 1371 | Lisp_Object symbol, value; |
7921925c JB |
1372 | { |
1373 | register Lisp_Object valcontents, current_alist_element, alist_element_buffer; | |
1374 | ||
b7826503 | 1375 | CHECK_SYMBOL (symbol); |
f35d5bad | 1376 | valcontents = SYMBOL_VALUE (symbol); |
7921925c JB |
1377 | |
1378 | /* Handle variables like case-fold-search that have special slots | |
1379 | in the buffer. Make them work apparently like Lisp_Buffer_Local_Value | |
1380 | variables. */ | |
e9ebc175 | 1381 | if (BUFFER_OBJFWDP (valcontents)) |
7921925c | 1382 | { |
999b32fd | 1383 | int offset = XBUFFER_OBJFWD (valcontents)->offset; |
f6cd0527 | 1384 | int idx = PER_BUFFER_IDX (offset); |
7921925c | 1385 | |
f6cd0527 | 1386 | PER_BUFFER_DEFAULT (offset) = value; |
984ef137 KH |
1387 | |
1388 | /* If this variable is not always local in all buffers, | |
1389 | set it in the buffers that don't nominally have a local value. */ | |
999b32fd | 1390 | if (idx > 0) |
7921925c | 1391 | { |
999b32fd | 1392 | struct buffer *b; |
bfb96cb7 | 1393 | |
7921925c | 1394 | for (b = all_buffers; b; b = b->next) |
f6cd0527 GM |
1395 | if (!PER_BUFFER_VALUE_P (b, idx)) |
1396 | PER_BUFFER_VALUE (b, offset) = value; | |
7921925c JB |
1397 | } |
1398 | return value; | |
1399 | } | |
1400 | ||
67ee9f6e | 1401 | if (!BUFFER_LOCAL_VALUEP (valcontents)) |
d9c2a0f2 | 1402 | return Fset (symbol, value); |
7921925c | 1403 | |
42e975f0 | 1404 | /* Store new value into the DEFAULT-VALUE slot. */ |
f3fbd155 | 1405 | XSETCDR (XBUFFER_LOCAL_VALUE (valcontents)->cdr, value); |
7921925c | 1406 | |
42e975f0 | 1407 | /* If the default binding is now loaded, set the REALVALUE slot too. */ |
8d4afcac | 1408 | current_alist_element |
7539e11f | 1409 | = XCAR (XBUFFER_LOCAL_VALUE (valcontents)->cdr); |
7921925c JB |
1410 | alist_element_buffer = Fcar (current_alist_element); |
1411 | if (EQ (alist_element_buffer, current_alist_element)) | |
7a283f36 GM |
1412 | store_symval_forwarding (symbol, |
1413 | XBUFFER_LOCAL_VALUE (valcontents)->realvalue, | |
1414 | value, NULL); | |
7921925c JB |
1415 | |
1416 | return value; | |
1417 | } | |
1418 | ||
7a7df7ac | 1419 | DEFUN ("setq-default", Fsetq_default, Ssetq_default, 0, UNEVALLED, 0, |
8c1a1077 PJ |
1420 | doc: /* Set the default value of variable VAR to VALUE. |
1421 | VAR, the variable name, is literal (not evaluated); | |
bfb96cb7 | 1422 | VALUE is an expression: it is evaluated and its value returned. |
8c1a1077 PJ |
1423 | The default value of a variable is seen in buffers |
1424 | that do not have their own values for the variable. | |
1425 | ||
1426 | More generally, you can use multiple variables and values, as in | |
948d2995 JB |
1427 | (setq-default VAR VALUE VAR VALUE...) |
1428 | This sets each VAR's default value to the corresponding VALUE. | |
1429 | The VALUE for the Nth VAR can refer to the new default values | |
1430 | of previous VARs. | |
70e9f399 | 1431 | usage: (setq-default [VAR VALUE]...) */) |
8c1a1077 | 1432 | (args) |
7921925c JB |
1433 | Lisp_Object args; |
1434 | { | |
1435 | register Lisp_Object args_left; | |
d9c2a0f2 | 1436 | register Lisp_Object val, symbol; |
7921925c JB |
1437 | struct gcpro gcpro1; |
1438 | ||
a33ef3ab | 1439 | if (NILP (args)) |
7921925c JB |
1440 | return Qnil; |
1441 | ||
1442 | args_left = args; | |
1443 | GCPRO1 (args); | |
1444 | ||
1445 | do | |
1446 | { | |
1447 | val = Feval (Fcar (Fcdr (args_left))); | |
d2fde41d | 1448 | symbol = XCAR (args_left); |
d9c2a0f2 | 1449 | Fset_default (symbol, val); |
d2fde41d | 1450 | args_left = Fcdr (XCDR (args_left)); |
7921925c | 1451 | } |
a33ef3ab | 1452 | while (!NILP (args_left)); |
7921925c JB |
1453 | |
1454 | UNGCPRO; | |
1455 | return val; | |
1456 | } | |
1457 | \f | |
a5ca2b75 JB |
1458 | /* Lisp functions for creating and removing buffer-local variables. */ |
1459 | ||
7921925c | 1460 | DEFUN ("make-variable-buffer-local", Fmake_variable_buffer_local, Smake_variable_buffer_local, |
8c1a1077 PJ |
1461 | 1, 1, "vMake Variable Buffer Local: ", |
1462 | doc: /* Make VARIABLE become buffer-local whenever it is set. | |
1463 | At any time, the value for the current buffer is in effect, | |
1464 | unless the variable has never been set in this buffer, | |
1465 | in which case the default value is in effect. | |
1466 | Note that binding the variable with `let', or setting it while | |
1467 | a `let'-style binding made in this buffer is in effect, | |
bfb96cb7 | 1468 | does not make the variable buffer-local. Return VARIABLE. |
8c1a1077 | 1469 | |
a9908653 RS |
1470 | In most cases it is better to use `make-local-variable', |
1471 | which makes a variable local in just one buffer. | |
1472 | ||
8c1a1077 PJ |
1473 | The function `default-value' gets the default value and `set-default' sets it. */) |
1474 | (variable) | |
d9c2a0f2 | 1475 | register Lisp_Object variable; |
7921925c | 1476 | { |
8d4afcac | 1477 | register Lisp_Object tem, valcontents, newval; |
7921925c | 1478 | |
b7826503 | 1479 | CHECK_SYMBOL (variable); |
6b61353c | 1480 | variable = indirect_variable (variable); |
7921925c | 1481 | |
f35d5bad | 1482 | valcontents = SYMBOL_VALUE (variable); |
7357cb04 | 1483 | if (XSYMBOL (variable)->constant || KBOARD_OBJFWDP (valcontents)) |
d5db4077 | 1484 | error ("Symbol %s may not be buffer-local", SDATA (SYMBOL_NAME (variable))); |
7921925c | 1485 | |
67ee9f6e | 1486 | if (BUFFER_OBJFWDP (valcontents)) |
d9c2a0f2 | 1487 | return variable; |
67ee9f6e SM |
1488 | else if (BUFFER_LOCAL_VALUEP (valcontents)) |
1489 | newval = valcontents; | |
1490 | else | |
7921925c | 1491 | { |
67ee9f6e SM |
1492 | if (EQ (valcontents, Qunbound)) |
1493 | SET_SYMBOL_VALUE (variable, Qnil); | |
1494 | tem = Fcons (Qnil, Fsymbol_value (variable)); | |
1495 | XSETCAR (tem, tem); | |
1496 | newval = allocate_misc (); | |
1497 | XMISCTYPE (newval) = Lisp_Misc_Buffer_Local_Value; | |
1498 | XBUFFER_LOCAL_VALUE (newval)->realvalue = SYMBOL_VALUE (variable); | |
1499 | XBUFFER_LOCAL_VALUE (newval)->buffer = Fcurrent_buffer (); | |
1500 | XBUFFER_LOCAL_VALUE (newval)->frame = Qnil; | |
1501 | XBUFFER_LOCAL_VALUE (newval)->found_for_buffer = 0; | |
1502 | XBUFFER_LOCAL_VALUE (newval)->found_for_frame = 0; | |
1503 | XBUFFER_LOCAL_VALUE (newval)->check_frame = 0; | |
1504 | XBUFFER_LOCAL_VALUE (newval)->cdr = tem; | |
1505 | SET_SYMBOL_VALUE (variable, newval); | |
7921925c | 1506 | } |
67ee9f6e | 1507 | XBUFFER_LOCAL_VALUE (newval)->local_if_set = 1; |
d9c2a0f2 | 1508 | return variable; |
7921925c JB |
1509 | } |
1510 | ||
1511 | DEFUN ("make-local-variable", Fmake_local_variable, Smake_local_variable, | |
8c1a1077 PJ |
1512 | 1, 1, "vMake Local Variable: ", |
1513 | doc: /* Make VARIABLE have a separate value in the current buffer. | |
1514 | Other buffers will continue to share a common default value. | |
1515 | \(The buffer-local value of VARIABLE starts out as the same value | |
1516 | VARIABLE previously had. If VARIABLE was void, it remains void.\) | |
a9908653 | 1517 | Return VARIABLE. |
8c1a1077 PJ |
1518 | |
1519 | If the variable is already arranged to become local when set, | |
1520 | this function causes a local value to exist for this buffer, | |
1521 | just as setting the variable would do. | |
1522 | ||
1523 | This function returns VARIABLE, and therefore | |
1524 | (set (make-local-variable 'VARIABLE) VALUE-EXP) | |
1525 | works. | |
1526 | ||
a9908653 RS |
1527 | See also `make-variable-buffer-local'. |
1528 | ||
8c1a1077 | 1529 | Do not use `make-local-variable' to make a hook variable buffer-local. |
515f3f25 | 1530 | Instead, use `add-hook' and specify t for the LOCAL argument. */) |
8c1a1077 | 1531 | (variable) |
d9c2a0f2 | 1532 | register Lisp_Object variable; |
7921925c JB |
1533 | { |
1534 | register Lisp_Object tem, valcontents; | |
1535 | ||
b7826503 | 1536 | CHECK_SYMBOL (variable); |
6b61353c | 1537 | variable = indirect_variable (variable); |
7921925c | 1538 | |
f35d5bad | 1539 | valcontents = SYMBOL_VALUE (variable); |
7357cb04 | 1540 | if (XSYMBOL (variable)->constant || KBOARD_OBJFWDP (valcontents)) |
d5db4077 | 1541 | error ("Symbol %s may not be buffer-local", SDATA (SYMBOL_NAME (variable))); |
7921925c | 1542 | |
67ee9f6e SM |
1543 | if ((BUFFER_LOCAL_VALUEP (valcontents) |
1544 | && XBUFFER_LOCAL_VALUE (valcontents)->local_if_set) | |
1545 | || BUFFER_OBJFWDP (valcontents)) | |
7921925c | 1546 | { |
d9c2a0f2 | 1547 | tem = Fboundp (variable); |
7403b5c8 | 1548 | |
7921925c JB |
1549 | /* Make sure the symbol has a local value in this particular buffer, |
1550 | by setting it to the same value it already has. */ | |
d9c2a0f2 EN |
1551 | Fset (variable, (EQ (tem, Qt) ? Fsymbol_value (variable) : Qunbound)); |
1552 | return variable; | |
7921925c | 1553 | } |
42e975f0 | 1554 | /* Make sure symbol is set up to hold per-buffer values. */ |
67ee9f6e | 1555 | if (!BUFFER_LOCAL_VALUEP (valcontents)) |
7921925c | 1556 | { |
8d4afcac | 1557 | Lisp_Object newval; |
7921925c | 1558 | tem = Fcons (Qnil, do_symval_forwarding (valcontents)); |
f3fbd155 | 1559 | XSETCAR (tem, tem); |
8d4afcac | 1560 | newval = allocate_misc (); |
67ee9f6e | 1561 | XMISCTYPE (newval) = Lisp_Misc_Buffer_Local_Value; |
f35d5bad | 1562 | XBUFFER_LOCAL_VALUE (newval)->realvalue = SYMBOL_VALUE (variable); |
b0c2d1c6 RS |
1563 | XBUFFER_LOCAL_VALUE (newval)->buffer = Qnil; |
1564 | XBUFFER_LOCAL_VALUE (newval)->frame = Qnil; | |
67ee9f6e | 1565 | XBUFFER_LOCAL_VALUE (newval)->local_if_set = 0; |
b0c2d1c6 RS |
1566 | XBUFFER_LOCAL_VALUE (newval)->found_for_buffer = 0; |
1567 | XBUFFER_LOCAL_VALUE (newval)->found_for_frame = 0; | |
1568 | XBUFFER_LOCAL_VALUE (newval)->check_frame = 0; | |
1569 | XBUFFER_LOCAL_VALUE (newval)->cdr = tem; | |
3b8c0c70 | 1570 | SET_SYMBOL_VALUE (variable, newval); |
7921925c | 1571 | } |
42e975f0 | 1572 | /* Make sure this buffer has its own value of symbol. */ |
d9c2a0f2 | 1573 | tem = Fassq (variable, current_buffer->local_var_alist); |
a33ef3ab | 1574 | if (NILP (tem)) |
7921925c | 1575 | { |
a5d004a1 RS |
1576 | /* Swap out any local binding for some other buffer, and make |
1577 | sure the current value is permanently recorded, if it's the | |
1578 | default value. */ | |
d9c2a0f2 | 1579 | find_symbol_value (variable); |
a5d004a1 | 1580 | |
7921925c | 1581 | current_buffer->local_var_alist |
f35d5bad | 1582 | = Fcons (Fcons (variable, XCDR (XBUFFER_LOCAL_VALUE (SYMBOL_VALUE (variable))->cdr)), |
7921925c JB |
1583 | current_buffer->local_var_alist); |
1584 | ||
1585 | /* Make sure symbol does not think it is set up for this buffer; | |
42e975f0 | 1586 | force it to look once again for this buffer's value. */ |
7921925c | 1587 | { |
8d4afcac | 1588 | Lisp_Object *pvalbuf; |
a5d004a1 | 1589 | |
f35d5bad | 1590 | valcontents = SYMBOL_VALUE (variable); |
a5d004a1 | 1591 | |
b0c2d1c6 | 1592 | pvalbuf = &XBUFFER_LOCAL_VALUE (valcontents)->buffer; |
8d4afcac KH |
1593 | if (current_buffer == XBUFFER (*pvalbuf)) |
1594 | *pvalbuf = Qnil; | |
b0c2d1c6 | 1595 | XBUFFER_LOCAL_VALUE (valcontents)->found_for_buffer = 0; |
7921925c | 1596 | } |
7921925c | 1597 | } |
a5ca2b75 | 1598 | |
42e975f0 RS |
1599 | /* If the symbol forwards into a C variable, then load the binding |
1600 | for this buffer now. If C code modifies the variable before we | |
1601 | load the binding in, then that new value will clobber the default | |
1602 | binding the next time we unload it. */ | |
f35d5bad | 1603 | valcontents = XBUFFER_LOCAL_VALUE (SYMBOL_VALUE (variable))->realvalue; |
e9ebc175 | 1604 | if (INTFWDP (valcontents) || BOOLFWDP (valcontents) || OBJFWDP (valcontents)) |
f35d5bad | 1605 | swap_in_symval_forwarding (variable, SYMBOL_VALUE (variable)); |
a5ca2b75 | 1606 | |
d9c2a0f2 | 1607 | return variable; |
7921925c JB |
1608 | } |
1609 | ||
1610 | DEFUN ("kill-local-variable", Fkill_local_variable, Skill_local_variable, | |
8c1a1077 PJ |
1611 | 1, 1, "vKill Local Variable: ", |
1612 | doc: /* Make VARIABLE no longer have a separate value in the current buffer. | |
bfb96cb7 | 1613 | From now on the default value will apply in this buffer. Return VARIABLE. */) |
8c1a1077 | 1614 | (variable) |
d9c2a0f2 | 1615 | register Lisp_Object variable; |
7921925c JB |
1616 | { |
1617 | register Lisp_Object tem, valcontents; | |
1618 | ||
b7826503 | 1619 | CHECK_SYMBOL (variable); |
6b61353c | 1620 | variable = indirect_variable (variable); |
7921925c | 1621 | |
f35d5bad | 1622 | valcontents = SYMBOL_VALUE (variable); |
7921925c | 1623 | |
e9ebc175 | 1624 | if (BUFFER_OBJFWDP (valcontents)) |
7921925c | 1625 | { |
999b32fd | 1626 | int offset = XBUFFER_OBJFWD (valcontents)->offset; |
f6cd0527 | 1627 | int idx = PER_BUFFER_IDX (offset); |
7921925c | 1628 | |
999b32fd | 1629 | if (idx > 0) |
7921925c | 1630 | { |
f6cd0527 GM |
1631 | SET_PER_BUFFER_VALUE_P (current_buffer, idx, 0); |
1632 | PER_BUFFER_VALUE (current_buffer, offset) | |
1633 | = PER_BUFFER_DEFAULT (offset); | |
7921925c | 1634 | } |
d9c2a0f2 | 1635 | return variable; |
7921925c JB |
1636 | } |
1637 | ||
67ee9f6e | 1638 | if (!BUFFER_LOCAL_VALUEP (valcontents)) |
d9c2a0f2 | 1639 | return variable; |
7921925c | 1640 | |
42e975f0 | 1641 | /* Get rid of this buffer's alist element, if any. */ |
7921925c | 1642 | |
d9c2a0f2 | 1643 | tem = Fassq (variable, current_buffer->local_var_alist); |
a33ef3ab | 1644 | if (!NILP (tem)) |
8d4afcac KH |
1645 | current_buffer->local_var_alist |
1646 | = Fdelq (tem, current_buffer->local_var_alist); | |
7921925c | 1647 | |
42e975f0 RS |
1648 | /* If the symbol is set up with the current buffer's binding |
1649 | loaded, recompute its value. We have to do it now, or else | |
1650 | forwarded objects won't work right. */ | |
7921925c | 1651 | { |
999e6484 | 1652 | Lisp_Object *pvalbuf, buf; |
f35d5bad | 1653 | valcontents = SYMBOL_VALUE (variable); |
b0c2d1c6 | 1654 | pvalbuf = &XBUFFER_LOCAL_VALUE (valcontents)->buffer; |
999e6484 SM |
1655 | XSETBUFFER (buf, current_buffer); |
1656 | if (EQ (buf, *pvalbuf)) | |
79c83e03 KH |
1657 | { |
1658 | *pvalbuf = Qnil; | |
b0c2d1c6 | 1659 | XBUFFER_LOCAL_VALUE (valcontents)->found_for_buffer = 0; |
978dd578 | 1660 | find_symbol_value (variable); |
79c83e03 | 1661 | } |
7921925c JB |
1662 | } |
1663 | ||
d9c2a0f2 | 1664 | return variable; |
7921925c | 1665 | } |
62476adc | 1666 | |
b0c2d1c6 RS |
1667 | /* Lisp functions for creating and removing buffer-local variables. */ |
1668 | ||
1669 | DEFUN ("make-variable-frame-local", Fmake_variable_frame_local, Smake_variable_frame_local, | |
8c1a1077 PJ |
1670 | 1, 1, "vMake Variable Frame Local: ", |
1671 | doc: /* Enable VARIABLE to have frame-local bindings. | |
4d4d36b1 RS |
1672 | This does not create any frame-local bindings for VARIABLE, |
1673 | it just makes them possible. | |
1674 | ||
1675 | A frame-local binding is actually a frame parameter value. | |
1676 | If a frame F has a value for the frame parameter named VARIABLE, | |
1677 | that also acts as a frame-local binding for VARIABLE in F-- | |
1678 | provided this function has been called to enable VARIABLE | |
1679 | to have frame-local bindings at all. | |
1680 | ||
1681 | The only way to create a frame-local binding for VARIABLE in a frame | |
1682 | is to set the VARIABLE frame parameter of that frame. See | |
1683 | `modify-frame-parameters' for how to set frame parameters. | |
1684 | ||
1685 | Buffer-local bindings take precedence over frame-local bindings. */) | |
8c1a1077 | 1686 | (variable) |
b0c2d1c6 RS |
1687 | register Lisp_Object variable; |
1688 | { | |
1689 | register Lisp_Object tem, valcontents, newval; | |
1690 | ||
b7826503 | 1691 | CHECK_SYMBOL (variable); |
6b61353c | 1692 | variable = indirect_variable (variable); |
b0c2d1c6 | 1693 | |
f35d5bad | 1694 | valcontents = SYMBOL_VALUE (variable); |
7357cb04 | 1695 | if (XSYMBOL (variable)->constant || KBOARD_OBJFWDP (valcontents) |
b0c2d1c6 | 1696 | || BUFFER_OBJFWDP (valcontents)) |
d5db4077 | 1697 | error ("Symbol %s may not be frame-local", SDATA (SYMBOL_NAME (variable))); |
b0c2d1c6 | 1698 | |
67ee9f6e | 1699 | if (BUFFER_LOCAL_VALUEP (valcontents)) |
42e975f0 RS |
1700 | { |
1701 | XBUFFER_LOCAL_VALUE (valcontents)->check_frame = 1; | |
1702 | return variable; | |
1703 | } | |
b0c2d1c6 RS |
1704 | |
1705 | if (EQ (valcontents, Qunbound)) | |
f35d5bad | 1706 | SET_SYMBOL_VALUE (variable, Qnil); |
b0c2d1c6 | 1707 | tem = Fcons (Qnil, Fsymbol_value (variable)); |
f3fbd155 | 1708 | XSETCAR (tem, tem); |
b0c2d1c6 | 1709 | newval = allocate_misc (); |
67ee9f6e | 1710 | XMISCTYPE (newval) = Lisp_Misc_Buffer_Local_Value; |
f35d5bad | 1711 | XBUFFER_LOCAL_VALUE (newval)->realvalue = SYMBOL_VALUE (variable); |
b0c2d1c6 RS |
1712 | XBUFFER_LOCAL_VALUE (newval)->buffer = Qnil; |
1713 | XBUFFER_LOCAL_VALUE (newval)->frame = Qnil; | |
67ee9f6e | 1714 | XBUFFER_LOCAL_VALUE (newval)->local_if_set = 0; |
b0c2d1c6 RS |
1715 | XBUFFER_LOCAL_VALUE (newval)->found_for_buffer = 0; |
1716 | XBUFFER_LOCAL_VALUE (newval)->found_for_frame = 0; | |
1717 | XBUFFER_LOCAL_VALUE (newval)->check_frame = 1; | |
1718 | XBUFFER_LOCAL_VALUE (newval)->cdr = tem; | |
f35d5bad | 1719 | SET_SYMBOL_VALUE (variable, newval); |
b0c2d1c6 RS |
1720 | return variable; |
1721 | } | |
1722 | ||
62476adc | 1723 | DEFUN ("local-variable-p", Flocal_variable_p, Slocal_variable_p, |
8c1a1077 PJ |
1724 | 1, 2, 0, |
1725 | doc: /* Non-nil if VARIABLE has a local binding in buffer BUFFER. | |
1726 | BUFFER defaults to the current buffer. */) | |
1727 | (variable, buffer) | |
d9c2a0f2 | 1728 | register Lisp_Object variable, buffer; |
62476adc RS |
1729 | { |
1730 | Lisp_Object valcontents; | |
c48ead86 KH |
1731 | register struct buffer *buf; |
1732 | ||
1733 | if (NILP (buffer)) | |
1734 | buf = current_buffer; | |
1735 | else | |
1736 | { | |
b7826503 | 1737 | CHECK_BUFFER (buffer); |
c48ead86 KH |
1738 | buf = XBUFFER (buffer); |
1739 | } | |
62476adc | 1740 | |
b7826503 | 1741 | CHECK_SYMBOL (variable); |
6b61353c | 1742 | variable = indirect_variable (variable); |
62476adc | 1743 | |
f35d5bad | 1744 | valcontents = SYMBOL_VALUE (variable); |
67ee9f6e | 1745 | if (BUFFER_LOCAL_VALUEP (valcontents)) |
c48ead86 KH |
1746 | { |
1747 | Lisp_Object tail, elt; | |
f35d5bad | 1748 | |
7539e11f | 1749 | for (tail = buf->local_var_alist; CONSP (tail); tail = XCDR (tail)) |
c48ead86 | 1750 | { |
7539e11f KR |
1751 | elt = XCAR (tail); |
1752 | if (EQ (variable, XCAR (elt))) | |
c48ead86 KH |
1753 | return Qt; |
1754 | } | |
1755 | } | |
1756 | if (BUFFER_OBJFWDP (valcontents)) | |
1757 | { | |
1758 | int offset = XBUFFER_OBJFWD (valcontents)->offset; | |
f6cd0527 GM |
1759 | int idx = PER_BUFFER_IDX (offset); |
1760 | if (idx == -1 || PER_BUFFER_VALUE_P (buf, idx)) | |
c48ead86 KH |
1761 | return Qt; |
1762 | } | |
1763 | return Qnil; | |
62476adc | 1764 | } |
f4f04cee RS |
1765 | |
1766 | DEFUN ("local-variable-if-set-p", Flocal_variable_if_set_p, Slocal_variable_if_set_p, | |
8c1a1077 | 1767 | 1, 2, 0, |
1dc5ba01 LT |
1768 | doc: /* Non-nil if VARIABLE will be local in buffer BUFFER when set there. |
1769 | More precisely, this means that setting the variable \(with `set' or`setq'), | |
1770 | while it does not have a `let'-style binding that was made in BUFFER, | |
1771 | will produce a buffer local binding. See Info node | |
1772 | `(elisp)Creating Buffer-Local'. | |
8c1a1077 PJ |
1773 | BUFFER defaults to the current buffer. */) |
1774 | (variable, buffer) | |
d9c2a0f2 | 1775 | register Lisp_Object variable, buffer; |
f4f04cee RS |
1776 | { |
1777 | Lisp_Object valcontents; | |
1778 | register struct buffer *buf; | |
1779 | ||
1780 | if (NILP (buffer)) | |
1781 | buf = current_buffer; | |
1782 | else | |
1783 | { | |
b7826503 | 1784 | CHECK_BUFFER (buffer); |
f4f04cee RS |
1785 | buf = XBUFFER (buffer); |
1786 | } | |
1787 | ||
b7826503 | 1788 | CHECK_SYMBOL (variable); |
6b61353c | 1789 | variable = indirect_variable (variable); |
f4f04cee | 1790 | |
f35d5bad | 1791 | valcontents = SYMBOL_VALUE (variable); |
f4f04cee | 1792 | |
f4f04cee | 1793 | if (BUFFER_OBJFWDP (valcontents)) |
67ee9f6e | 1794 | /* All these slots become local if they are set. */ |
f4f04cee | 1795 | return Qt; |
67ee9f6e | 1796 | else if (BUFFER_LOCAL_VALUEP (valcontents)) |
f4f04cee RS |
1797 | { |
1798 | Lisp_Object tail, elt; | |
67ee9f6e SM |
1799 | if (XBUFFER_LOCAL_VALUE (valcontents)->local_if_set) |
1800 | return Qt; | |
7539e11f | 1801 | for (tail = buf->local_var_alist; CONSP (tail); tail = XCDR (tail)) |
f4f04cee | 1802 | { |
7539e11f KR |
1803 | elt = XCAR (tail); |
1804 | if (EQ (variable, XCAR (elt))) | |
f4f04cee RS |
1805 | return Qt; |
1806 | } | |
1807 | } | |
1808 | return Qnil; | |
1809 | } | |
6b61353c KH |
1810 | |
1811 | DEFUN ("variable-binding-locus", Fvariable_binding_locus, Svariable_binding_locus, | |
1812 | 1, 1, 0, | |
1813 | doc: /* Return a value indicating where VARIABLE's current binding comes from. | |
1814 | If the current binding is buffer-local, the value is the current buffer. | |
1815 | If the current binding is frame-local, the value is the selected frame. | |
1816 | If the current binding is global (the default), the value is nil. */) | |
1817 | (variable) | |
1818 | register Lisp_Object variable; | |
1819 | { | |
1820 | Lisp_Object valcontents; | |
1821 | ||
1822 | CHECK_SYMBOL (variable); | |
1823 | variable = indirect_variable (variable); | |
1824 | ||
1825 | /* Make sure the current binding is actually swapped in. */ | |
1826 | find_symbol_value (variable); | |
1827 | ||
1828 | valcontents = XSYMBOL (variable)->value; | |
1829 | ||
1830 | if (BUFFER_LOCAL_VALUEP (valcontents) | |
6b61353c KH |
1831 | || BUFFER_OBJFWDP (valcontents)) |
1832 | { | |
1833 | /* For a local variable, record both the symbol and which | |
1834 | buffer's or frame's value we are saving. */ | |
1835 | if (!NILP (Flocal_variable_p (variable, Qnil))) | |
1836 | return Fcurrent_buffer (); | |
67ee9f6e | 1837 | else if (BUFFER_LOCAL_VALUEP (valcontents) |
6b61353c KH |
1838 | && XBUFFER_LOCAL_VALUE (valcontents)->found_for_frame) |
1839 | return XBUFFER_LOCAL_VALUE (valcontents)->frame; | |
1840 | } | |
1841 | ||
1842 | return Qnil; | |
1843 | } | |
2a42d440 | 1844 | |
c40bb1ba KL |
1845 | /* This code is disabled now that we use the selected frame to return |
1846 | keyboard-local-values. */ | |
1847 | #if 0 | |
6ed8eeff | 1848 | extern struct terminal *get_terminal P_ ((Lisp_Object display, int)); |
2a42d440 KL |
1849 | |
1850 | DEFUN ("terminal-local-value", Fterminal_local_value, Sterminal_local_value, 2, 2, 0, | |
6ed8eeff | 1851 | doc: /* Return the terminal-local value of SYMBOL on TERMINAL. |
2a42d440 KL |
1852 | If SYMBOL is not a terminal-local variable, then return its normal |
1853 | value, like `symbol-value'. | |
1854 | ||
6ed8eeff KL |
1855 | TERMINAL may be a terminal id, a frame, or nil (meaning the |
1856 | selected frame's terminal device). */) | |
1857 | (symbol, terminal) | |
2a42d440 | 1858 | Lisp_Object symbol; |
6ed8eeff | 1859 | Lisp_Object terminal; |
2a42d440 KL |
1860 | { |
1861 | Lisp_Object result; | |
6ed8eeff KL |
1862 | struct terminal *t = get_terminal (terminal, 1); |
1863 | push_kboard (t->kboard); | |
2a42d440 | 1864 | result = Fsymbol_value (symbol); |
256c9c3a | 1865 | pop_kboard (); |
2a42d440 KL |
1866 | return result; |
1867 | } | |
1868 | ||
1869 | DEFUN ("set-terminal-local-value", Fset_terminal_local_value, Sset_terminal_local_value, 3, 3, 0, | |
6ed8eeff | 1870 | doc: /* Set the terminal-local binding of SYMBOL on TERMINAL to VALUE. |
2a42d440 | 1871 | If VARIABLE is not a terminal-local variable, then set its normal |
7e59217d KL |
1872 | binding, like `set'. |
1873 | ||
6ed8eeff KL |
1874 | TERMINAL may be a terminal id, a frame, or nil (meaning the |
1875 | selected frame's terminal device). */) | |
1876 | (symbol, terminal, value) | |
2a42d440 | 1877 | Lisp_Object symbol; |
6ed8eeff | 1878 | Lisp_Object terminal; |
2a42d440 KL |
1879 | Lisp_Object value; |
1880 | { | |
1881 | Lisp_Object result; | |
6ed8eeff | 1882 | struct terminal *t = get_terminal (terminal, 1); |
256c9c3a | 1883 | push_kboard (d->kboard); |
2a42d440 | 1884 | result = Fset (symbol, value); |
256c9c3a | 1885 | pop_kboard (); |
2a42d440 KL |
1886 | return result; |
1887 | } | |
c40bb1ba | 1888 | #endif |
7921925c | 1889 | \f |
ffd56f97 JB |
1890 | /* Find the function at the end of a chain of symbol function indirections. */ |
1891 | ||
1892 | /* If OBJECT is a symbol, find the end of its function chain and | |
1893 | return the value found there. If OBJECT is not a symbol, just | |
1894 | return it. If there is a cycle in the function chain, signal a | |
1895 | cyclic-function-indirection error. | |
1896 | ||
1897 | This is like Findirect_function, except that it doesn't signal an | |
1898 | error if the chain ends up unbound. */ | |
1899 | Lisp_Object | |
a2932990 | 1900 | indirect_function (object) |
62476adc | 1901 | register Lisp_Object object; |
ffd56f97 | 1902 | { |
eb8c3be9 | 1903 | Lisp_Object tortoise, hare; |
ffd56f97 | 1904 | |
eb8c3be9 | 1905 | hare = tortoise = object; |
ffd56f97 JB |
1906 | |
1907 | for (;;) | |
1908 | { | |
e9ebc175 | 1909 | if (!SYMBOLP (hare) || EQ (hare, Qunbound)) |
ffd56f97 JB |
1910 | break; |
1911 | hare = XSYMBOL (hare)->function; | |
e9ebc175 | 1912 | if (!SYMBOLP (hare) || EQ (hare, Qunbound)) |
ffd56f97 JB |
1913 | break; |
1914 | hare = XSYMBOL (hare)->function; | |
1915 | ||
eb8c3be9 | 1916 | tortoise = XSYMBOL (tortoise)->function; |
ffd56f97 | 1917 | |
eb8c3be9 | 1918 | if (EQ (hare, tortoise)) |
740ef0b5 | 1919 | xsignal1 (Qcyclic_function_indirection, object); |
ffd56f97 JB |
1920 | } |
1921 | ||
1922 | return hare; | |
1923 | } | |
1924 | ||
a7f96a35 | 1925 | DEFUN ("indirect-function", Findirect_function, Sindirect_function, 1, 2, 0, |
8c1a1077 | 1926 | doc: /* Return the function at the end of OBJECT's function chain. |
0ddb0ae8 TTN |
1927 | If OBJECT is not a symbol, just return it. Otherwise, follow all |
1928 | function indirections to find the final function binding and return it. | |
1929 | If the final symbol in the chain is unbound, signal a void-function error. | |
1930 | Optional arg NOERROR non-nil means to return nil instead of signalling. | |
8c1a1077 PJ |
1931 | Signal a cyclic-function-indirection error if there is a loop in the |
1932 | function chain of symbols. */) | |
0ddb0ae8 | 1933 | (object, noerror) |
8c1a1077 | 1934 | register Lisp_Object object; |
0ddb0ae8 | 1935 | Lisp_Object noerror; |
ffd56f97 JB |
1936 | { |
1937 | Lisp_Object result; | |
1938 | ||
64de53d8 KS |
1939 | /* Optimize for no indirection. */ |
1940 | result = object; | |
1941 | if (SYMBOLP (result) && !EQ (result, Qunbound) | |
1942 | && (result = XSYMBOL (result)->function, SYMBOLP (result))) | |
1943 | result = indirect_function (result); | |
1944 | if (!EQ (result, Qunbound)) | |
1945 | return result; | |
ffd56f97 | 1946 | |
64de53d8 | 1947 | if (NILP (noerror)) |
740ef0b5 | 1948 | xsignal1 (Qvoid_function, object); |
ffd56f97 | 1949 | |
64de53d8 | 1950 | return Qnil; |
ffd56f97 JB |
1951 | } |
1952 | \f | |
7921925c JB |
1953 | /* Extract and set vector and string elements */ |
1954 | ||
1955 | DEFUN ("aref", Faref, Saref, 2, 2, 0, | |
8c1a1077 PJ |
1956 | doc: /* Return the element of ARRAY at index IDX. |
1957 | ARRAY may be a vector, a string, a char-table, a bool-vector, | |
1958 | or a byte-code object. IDX starts at 0. */) | |
1959 | (array, idx) | |
7921925c JB |
1960 | register Lisp_Object array; |
1961 | Lisp_Object idx; | |
1962 | { | |
1963 | register int idxval; | |
1964 | ||
b7826503 | 1965 | CHECK_NUMBER (idx); |
7921925c | 1966 | idxval = XINT (idx); |
e9ebc175 | 1967 | if (STRINGP (array)) |
7921925c | 1968 | { |
25638b07 RS |
1969 | int c, idxval_byte; |
1970 | ||
d5db4077 | 1971 | if (idxval < 0 || idxval >= SCHARS (array)) |
c24e4efe | 1972 | args_out_of_range (array, idx); |
25638b07 | 1973 | if (! STRING_MULTIBYTE (array)) |
d5db4077 | 1974 | return make_number ((unsigned char) SREF (array, idxval)); |
25638b07 RS |
1975 | idxval_byte = string_char_to_byte (array, idxval); |
1976 | ||
29f44a37 | 1977 | c = STRING_CHAR (SDATA (array) + idxval_byte, |
d5db4077 | 1978 | SBYTES (array) - idxval_byte); |
25638b07 | 1979 | return make_number (c); |
7921925c | 1980 | } |
4d276982 RS |
1981 | else if (BOOL_VECTOR_P (array)) |
1982 | { | |
1983 | int val; | |
4d276982 RS |
1984 | |
1985 | if (idxval < 0 || idxval >= XBOOL_VECTOR (array)->size) | |
1986 | args_out_of_range (array, idx); | |
1987 | ||
b9ed2177 AS |
1988 | val = (unsigned char) XBOOL_VECTOR (array)->data[idxval / BOOL_VECTOR_BITS_PER_CHAR]; |
1989 | return (val & (1 << (idxval % BOOL_VECTOR_BITS_PER_CHAR)) ? Qt : Qnil); | |
4d276982 RS |
1990 | } |
1991 | else if (CHAR_TABLE_P (array)) | |
1992 | { | |
e6e1f521 KH |
1993 | CHECK_CHARACTER (idx); |
1994 | return CHAR_TABLE_REF (array, idxval); | |
4d276982 | 1995 | } |
7921925c | 1996 | else |
c24e4efe | 1997 | { |
6bbd7a29 | 1998 | int size = 0; |
7f358972 RS |
1999 | if (VECTORP (array)) |
2000 | size = XVECTOR (array)->size; | |
2001 | else if (COMPILEDP (array)) | |
2002 | size = XVECTOR (array)->size & PSEUDOVECTOR_SIZE_MASK; | |
2003 | else | |
2004 | wrong_type_argument (Qarrayp, array); | |
2005 | ||
2006 | if (idxval < 0 || idxval >= size) | |
c24e4efe KH |
2007 | args_out_of_range (array, idx); |
2008 | return XVECTOR (array)->contents[idxval]; | |
2009 | } | |
7921925c JB |
2010 | } |
2011 | ||
2012 | DEFUN ("aset", Faset, Saset, 3, 3, 0, | |
8c1a1077 | 2013 | doc: /* Store into the element of ARRAY at index IDX the value NEWELT. |
bfb96cb7 FP |
2014 | Return NEWELT. ARRAY may be a vector, a string, a char-table or a |
2015 | bool-vector. IDX starts at 0. */) | |
8c1a1077 | 2016 | (array, idx, newelt) |
7921925c JB |
2017 | register Lisp_Object array; |
2018 | Lisp_Object idx, newelt; | |
2019 | { | |
2020 | register int idxval; | |
2021 | ||
b7826503 | 2022 | CHECK_NUMBER (idx); |
7921925c | 2023 | idxval = XINT (idx); |
0c64a8cd | 2024 | CHECK_ARRAY (array, Qarrayp); |
7921925c JB |
2025 | CHECK_IMPURE (array); |
2026 | ||
e9ebc175 | 2027 | if (VECTORP (array)) |
c24e4efe KH |
2028 | { |
2029 | if (idxval < 0 || idxval >= XVECTOR (array)->size) | |
2030 | args_out_of_range (array, idx); | |
2031 | XVECTOR (array)->contents[idxval] = newelt; | |
2032 | } | |
4d276982 RS |
2033 | else if (BOOL_VECTOR_P (array)) |
2034 | { | |
2035 | int val; | |
4d276982 RS |
2036 | |
2037 | if (idxval < 0 || idxval >= XBOOL_VECTOR (array)->size) | |
2038 | args_out_of_range (array, idx); | |
2039 | ||
b9ed2177 | 2040 | val = (unsigned char) XBOOL_VECTOR (array)->data[idxval / BOOL_VECTOR_BITS_PER_CHAR]; |
4d276982 RS |
2041 | |
2042 | if (! NILP (newelt)) | |
b9ed2177 | 2043 | val |= 1 << (idxval % BOOL_VECTOR_BITS_PER_CHAR); |
4d276982 | 2044 | else |
b9ed2177 AS |
2045 | val &= ~(1 << (idxval % BOOL_VECTOR_BITS_PER_CHAR)); |
2046 | XBOOL_VECTOR (array)->data[idxval / BOOL_VECTOR_BITS_PER_CHAR] = val; | |
4d276982 RS |
2047 | } |
2048 | else if (CHAR_TABLE_P (array)) | |
2049 | { | |
e6e1f521 KH |
2050 | CHECK_CHARACTER (idx); |
2051 | CHAR_TABLE_SET (array, idxval, newelt); | |
4d276982 | 2052 | } |
25638b07 RS |
2053 | else if (STRING_MULTIBYTE (array)) |
2054 | { | |
c6464167 | 2055 | int idxval_byte, prev_bytes, new_bytes, nbytes; |
3c9de1af | 2056 | unsigned char workbuf[MAX_MULTIBYTE_LENGTH], *p0 = workbuf, *p1; |
25638b07 | 2057 | |
d5db4077 | 2058 | if (idxval < 0 || idxval >= SCHARS (array)) |
25638b07 | 2059 | args_out_of_range (array, idx); |
d9130605 | 2060 | CHECK_CHARACTER (newelt); |
25638b07 | 2061 | |
c6464167 MB |
2062 | nbytes = SBYTES (array); |
2063 | ||
25638b07 | 2064 | idxval_byte = string_char_to_byte (array, idxval); |
29f44a37 | 2065 | p1 = SDATA (array) + idxval_byte; |
3c9de1af KH |
2066 | PARSE_MULTIBYTE_SEQ (p1, nbytes - idxval_byte, prev_bytes); |
2067 | new_bytes = CHAR_STRING (XINT (newelt), p0); | |
2068 | if (prev_bytes != new_bytes) | |
2069 | { | |
2070 | /* We must relocate the string data. */ | |
d5db4077 | 2071 | int nchars = SCHARS (array); |
3c9de1af | 2072 | unsigned char *str; |
f1a87317 | 2073 | USE_SAFE_ALLOCA; |
3c9de1af | 2074 | |
f1a87317 | 2075 | SAFE_ALLOCA (str, unsigned char *, nbytes); |
d5db4077 | 2076 | bcopy (SDATA (array), str, nbytes); |
3c9de1af KH |
2077 | allocate_string_data (XSTRING (array), nchars, |
2078 | nbytes + new_bytes - prev_bytes); | |
d5db4077 KR |
2079 | bcopy (str, SDATA (array), idxval_byte); |
2080 | p1 = SDATA (array) + idxval_byte; | |
3c9de1af KH |
2081 | bcopy (str + idxval_byte + prev_bytes, p1 + new_bytes, |
2082 | nbytes - (idxval_byte + prev_bytes)); | |
233f3db6 | 2083 | SAFE_FREE (); |
3c9de1af KH |
2084 | clear_string_char_byte_cache (); |
2085 | } | |
2086 | while (new_bytes--) | |
2087 | *p1++ = *p0++; | |
25638b07 | 2088 | } |
7921925c JB |
2089 | else |
2090 | { | |
d5db4077 | 2091 | if (idxval < 0 || idxval >= SCHARS (array)) |
c24e4efe | 2092 | args_out_of_range (array, idx); |
b7826503 | 2093 | CHECK_NUMBER (newelt); |
3c9de1af | 2094 | |
476e47ca KH |
2095 | if (XINT (newelt) >= 0 && ! SINGLE_BYTE_CHAR_P (XINT (newelt))) |
2096 | args_out_of_range (array, newelt); | |
2097 | SSET (array, idxval, XINT (newelt)); | |
7921925c JB |
2098 | } |
2099 | ||
2100 | return newelt; | |
2101 | } | |
7921925c JB |
2102 | \f |
2103 | /* Arithmetic functions */ | |
2104 | ||
2105 | enum comparison { equal, notequal, less, grtr, less_or_equal, grtr_or_equal }; | |
2106 | ||
2107 | Lisp_Object | |
2108 | arithcompare (num1, num2, comparison) | |
2109 | Lisp_Object num1, num2; | |
2110 | enum comparison comparison; | |
2111 | { | |
6bbd7a29 | 2112 | double f1 = 0, f2 = 0; |
7921925c JB |
2113 | int floatp = 0; |
2114 | ||
b7826503 PJ |
2115 | CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (num1); |
2116 | CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (num2); | |
7921925c | 2117 | |
e9ebc175 | 2118 | if (FLOATP (num1) || FLOATP (num2)) |
7921925c JB |
2119 | { |
2120 | floatp = 1; | |
7539e11f KR |
2121 | f1 = (FLOATP (num1)) ? XFLOAT_DATA (num1) : XINT (num1); |
2122 | f2 = (FLOATP (num2)) ? XFLOAT_DATA (num2) : XINT (num2); | |
7921925c | 2123 | } |
7921925c JB |
2124 | |
2125 | switch (comparison) | |
2126 | { | |
2127 | case equal: | |
2128 | if (floatp ? f1 == f2 : XINT (num1) == XINT (num2)) | |
2129 | return Qt; | |
2130 | return Qnil; | |
2131 | ||
2132 | case notequal: | |
2133 | if (floatp ? f1 != f2 : XINT (num1) != XINT (num2)) | |
2134 | return Qt; | |
2135 | return Qnil; | |
2136 | ||
2137 | case less: | |
2138 | if (floatp ? f1 < f2 : XINT (num1) < XINT (num2)) | |
2139 | return Qt; | |
2140 | return Qnil; | |
2141 | ||
2142 | case less_or_equal: | |
2143 | if (floatp ? f1 <= f2 : XINT (num1) <= XINT (num2)) | |
2144 | return Qt; | |
2145 | return Qnil; | |
2146 | ||
2147 | case grtr: | |
2148 | if (floatp ? f1 > f2 : XINT (num1) > XINT (num2)) | |
2149 | return Qt; | |
2150 | return Qnil; | |
2151 | ||
2152 | case grtr_or_equal: | |
2153 | if (floatp ? f1 >= f2 : XINT (num1) >= XINT (num2)) | |
2154 | return Qt; | |
2155 | return Qnil; | |
25e40a4b JB |
2156 | |
2157 | default: | |
2158 | abort (); | |
7921925c JB |
2159 | } |
2160 | } | |
2161 | ||
2162 | DEFUN ("=", Feqlsign, Seqlsign, 2, 2, 0, | |
8c1a1077 PJ |
2163 | doc: /* Return t if two args, both numbers or markers, are equal. */) |
2164 | (num1, num2) | |
7921925c JB |
2165 | register Lisp_Object num1, num2; |
2166 | { | |
2167 | return arithcompare (num1, num2, equal); | |
2168 | } | |
2169 | ||
2170 | DEFUN ("<", Flss, Slss, 2, 2, 0, | |
8c1a1077 PJ |
2171 | doc: /* Return t if first arg is less than second arg. Both must be numbers or markers. */) |
2172 | (num1, num2) | |
7921925c JB |
2173 | register Lisp_Object num1, num2; |
2174 | { | |
2175 | return arithcompare (num1, num2, less); | |
2176 | } | |
2177 | ||
2178 | DEFUN (">", Fgtr, Sgtr, 2, 2, 0, | |
8c1a1077 PJ |
2179 | doc: /* Return t if first arg is greater than second arg. Both must be numbers or markers. */) |
2180 | (num1, num2) | |
7921925c JB |
2181 | register Lisp_Object num1, num2; |
2182 | { | |
2183 | return arithcompare (num1, num2, grtr); | |
2184 | } | |
2185 | ||
2186 | DEFUN ("<=", Fleq, Sleq, 2, 2, 0, | |
8c1a1077 PJ |
2187 | doc: /* Return t if first arg is less than or equal to second arg. |
2188 | Both must be numbers or markers. */) | |
2189 | (num1, num2) | |
7921925c JB |
2190 | register Lisp_Object num1, num2; |
2191 | { | |
2192 | return arithcompare (num1, num2, less_or_equal); | |
2193 | } | |
2194 | ||
2195 | DEFUN (">=", Fgeq, Sgeq, 2, 2, 0, | |
8c1a1077 PJ |
2196 | doc: /* Return t if first arg is greater than or equal to second arg. |
2197 | Both must be numbers or markers. */) | |
2198 | (num1, num2) | |
7921925c JB |
2199 | register Lisp_Object num1, num2; |
2200 | { | |
2201 | return arithcompare (num1, num2, grtr_or_equal); | |
2202 | } | |
2203 | ||
2204 | DEFUN ("/=", Fneq, Sneq, 2, 2, 0, | |
8c1a1077 PJ |
2205 | doc: /* Return t if first arg is not equal to second arg. Both must be numbers or markers. */) |
2206 | (num1, num2) | |
7921925c JB |
2207 | register Lisp_Object num1, num2; |
2208 | { | |
2209 | return arithcompare (num1, num2, notequal); | |
2210 | } | |
2211 | ||
8c1a1077 PJ |
2212 | DEFUN ("zerop", Fzerop, Szerop, 1, 1, 0, |
2213 | doc: /* Return t if NUMBER is zero. */) | |
2214 | (number) | |
d9c2a0f2 | 2215 | register Lisp_Object number; |
7921925c | 2216 | { |
b7826503 | 2217 | CHECK_NUMBER_OR_FLOAT (number); |
7921925c | 2218 | |
d9c2a0f2 | 2219 | if (FLOATP (number)) |
7921925c | 2220 | { |
7539e11f | 2221 | if (XFLOAT_DATA (number) == 0.0) |
7921925c JB |
2222 | return Qt; |
2223 | return Qnil; | |
2224 | } | |
7921925c | 2225 | |
d9c2a0f2 | 2226 | if (!XINT (number)) |
7921925c JB |
2227 | return Qt; |
2228 | return Qnil; | |
2229 | } | |
2230 | \f | |
70e9f399 RS |
2231 | /* Convert between long values and pairs of Lisp integers. |
2232 | Note that long_to_cons returns a single Lisp integer | |
2233 | when the value fits in one. */ | |
51cf3e31 JB |
2234 | |
2235 | Lisp_Object | |
2236 | long_to_cons (i) | |
2237 | unsigned long i; | |
2238 | { | |
9bc7166b | 2239 | unsigned long top = i >> 16; |
51cf3e31 JB |
2240 | unsigned int bot = i & 0xFFFF; |
2241 | if (top == 0) | |
2242 | return make_number (bot); | |
b42cfa11 | 2243 | if (top == (unsigned long)-1 >> 16) |
51cf3e31 JB |
2244 | return Fcons (make_number (-1), make_number (bot)); |
2245 | return Fcons (make_number (top), make_number (bot)); | |
2246 | } | |
2247 | ||
2248 | unsigned long | |
2249 | cons_to_long (c) | |
2250 | Lisp_Object c; | |
2251 | { | |
878a80cc | 2252 | Lisp_Object top, bot; |
51cf3e31 JB |
2253 | if (INTEGERP (c)) |
2254 | return XINT (c); | |
7539e11f KR |
2255 | top = XCAR (c); |
2256 | bot = XCDR (c); | |
51cf3e31 | 2257 | if (CONSP (bot)) |
7539e11f | 2258 | bot = XCAR (bot); |
51cf3e31 JB |
2259 | return ((XINT (top) << 16) | XINT (bot)); |
2260 | } | |
2261 | \f | |
f2980264 | 2262 | DEFUN ("number-to-string", Fnumber_to_string, Snumber_to_string, 1, 1, 0, |
bfb96cb7 | 2263 | doc: /* Return the decimal representation of NUMBER as a string. |
8c1a1077 PJ |
2264 | Uses a minus sign if negative. |
2265 | NUMBER may be an integer or a floating point number. */) | |
2266 | (number) | |
d9c2a0f2 | 2267 | Lisp_Object number; |
7921925c | 2268 | { |
6030ce64 | 2269 | char buffer[VALBITS]; |
7921925c | 2270 | |
b7826503 | 2271 | CHECK_NUMBER_OR_FLOAT (number); |
7921925c | 2272 | |
d9c2a0f2 | 2273 | if (FLOATP (number)) |
7921925c JB |
2274 | { |
2275 | char pigbuf[350]; /* see comments in float_to_string */ | |
2276 | ||
7539e11f | 2277 | float_to_string (pigbuf, XFLOAT_DATA (number)); |
7403b5c8 | 2278 | return build_string (pigbuf); |
7921925c | 2279 | } |
7921925c | 2280 | |
e6c82a8d | 2281 | if (sizeof (int) == sizeof (EMACS_INT)) |
dfa3bb7a | 2282 | sprintf (buffer, "%d", (int) XINT (number)); |
e6c82a8d | 2283 | else if (sizeof (long) == sizeof (EMACS_INT)) |
dd8daec5 | 2284 | sprintf (buffer, "%ld", (long) XINT (number)); |
e6c82a8d RS |
2285 | else |
2286 | abort (); | |
7921925c JB |
2287 | return build_string (buffer); |
2288 | } | |
2289 | ||
3883fbeb RS |
2290 | INLINE static int |
2291 | digit_to_number (character, base) | |
2292 | int character, base; | |
2293 | { | |
2294 | int digit; | |
2295 | ||
2296 | if (character >= '0' && character <= '9') | |
2297 | digit = character - '0'; | |
2298 | else if (character >= 'a' && character <= 'z') | |
2299 | digit = character - 'a' + 10; | |
2300 | else if (character >= 'A' && character <= 'Z') | |
2301 | digit = character - 'A' + 10; | |
2302 | else | |
2303 | return -1; | |
2304 | ||
2305 | if (digit >= base) | |
2306 | return -1; | |
2307 | else | |
2308 | return digit; | |
bfb96cb7 | 2309 | } |
3883fbeb RS |
2310 | |
2311 | DEFUN ("string-to-number", Fstring_to_number, Sstring_to_number, 1, 2, 0, | |
558ee900 | 2312 | doc: /* Parse STRING as a decimal number and return the number. |
8c1a1077 PJ |
2313 | This parses both integers and floating point numbers. |
2314 | It ignores leading spaces and tabs. | |
2315 | ||
2316 | If BASE, interpret STRING as a number in that base. If BASE isn't | |
2317 | present, base 10 is used. BASE must be between 2 and 16 (inclusive). | |
2318 | If the base used is not 10, floating point is not recognized. */) | |
2319 | (string, base) | |
3883fbeb | 2320 | register Lisp_Object string, base; |
7921925c | 2321 | { |
3883fbeb | 2322 | register unsigned char *p; |
342858a5 GM |
2323 | register int b; |
2324 | int sign = 1; | |
2325 | Lisp_Object val; | |
25e40a4b | 2326 | |
b7826503 | 2327 | CHECK_STRING (string); |
7921925c | 2328 | |
3883fbeb RS |
2329 | if (NILP (base)) |
2330 | b = 10; | |
2331 | else | |
2332 | { | |
b7826503 | 2333 | CHECK_NUMBER (base); |
3883fbeb RS |
2334 | b = XINT (base); |
2335 | if (b < 2 || b > 16) | |
740ef0b5 | 2336 | xsignal1 (Qargs_out_of_range, base); |
3883fbeb RS |
2337 | } |
2338 | ||
25e40a4b JB |
2339 | /* Skip any whitespace at the front of the number. Some versions of |
2340 | atoi do this anyway, so we might as well make Emacs lisp consistent. */ | |
d5db4077 | 2341 | p = SDATA (string); |
0a3e4d65 | 2342 | while (*p == ' ' || *p == '\t') |
25e40a4b JB |
2343 | p++; |
2344 | ||
3883fbeb RS |
2345 | if (*p == '-') |
2346 | { | |
342858a5 | 2347 | sign = -1; |
3883fbeb RS |
2348 | p++; |
2349 | } | |
2350 | else if (*p == '+') | |
2351 | p++; | |
bfb96cb7 | 2352 | |
8e36ae7f | 2353 | if (isfloat_string (p) && b == 10) |
342858a5 GM |
2354 | val = make_float (sign * atof (p)); |
2355 | else | |
3883fbeb | 2356 | { |
342858a5 GM |
2357 | double v = 0; |
2358 | ||
2359 | while (1) | |
2360 | { | |
2361 | int digit = digit_to_number (*p++, b); | |
2362 | if (digit < 0) | |
2363 | break; | |
2364 | v = v * b + digit; | |
2365 | } | |
2366 | ||
cb938d46 | 2367 | val = make_fixnum_or_float (sign * v); |
3883fbeb | 2368 | } |
342858a5 GM |
2369 | |
2370 | return val; | |
7921925c | 2371 | } |
3883fbeb | 2372 | |
7403b5c8 | 2373 | \f |
7921925c | 2374 | enum arithop |
7a283f36 GM |
2375 | { |
2376 | Aadd, | |
2377 | Asub, | |
2378 | Amult, | |
2379 | Adiv, | |
2380 | Alogand, | |
2381 | Alogior, | |
2382 | Alogxor, | |
2383 | Amax, | |
2384 | Amin | |
2385 | }; | |
2386 | ||
2387 | static Lisp_Object float_arith_driver P_ ((double, int, enum arithop, | |
2388 | int, Lisp_Object *)); | |
ad8d56b9 | 2389 | extern Lisp_Object fmod_float (); |
b06faa91 | 2390 | |
7921925c | 2391 | Lisp_Object |
87fbf902 | 2392 | arith_driver (code, nargs, args) |
7921925c JB |
2393 | enum arithop code; |
2394 | int nargs; | |
2395 | register Lisp_Object *args; | |
2396 | { | |
2397 | register Lisp_Object val; | |
2398 | register int argnum; | |
7a283f36 | 2399 | register EMACS_INT accum = 0; |
5260234d | 2400 | register EMACS_INT next; |
7921925c | 2401 | |
0220c518 | 2402 | switch (SWITCH_ENUM_CAST (code)) |
7921925c JB |
2403 | { |
2404 | case Alogior: | |
2405 | case Alogxor: | |
2406 | case Aadd: | |
2407 | case Asub: | |
7a283f36 GM |
2408 | accum = 0; |
2409 | break; | |
7921925c | 2410 | case Amult: |
7a283f36 GM |
2411 | accum = 1; |
2412 | break; | |
7921925c | 2413 | case Alogand: |
7a283f36 GM |
2414 | accum = -1; |
2415 | break; | |
2416 | default: | |
2417 | break; | |
7921925c JB |
2418 | } |
2419 | ||
2420 | for (argnum = 0; argnum < nargs; argnum++) | |
2421 | { | |
7a283f36 GM |
2422 | /* Using args[argnum] as argument to CHECK_NUMBER_... */ |
2423 | val = args[argnum]; | |
b7826503 | 2424 | CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (val); |
7921925c | 2425 | |
7a283f36 GM |
2426 | if (FLOATP (val)) |
2427 | return float_arith_driver ((double) accum, argnum, code, | |
2428 | nargs, args); | |
2429 | args[argnum] = val; | |
7921925c | 2430 | next = XINT (args[argnum]); |
0220c518 | 2431 | switch (SWITCH_ENUM_CAST (code)) |
7921925c | 2432 | { |
7a283f36 GM |
2433 | case Aadd: |
2434 | accum += next; | |
2435 | break; | |
7921925c | 2436 | case Asub: |
e64981da | 2437 | accum = argnum ? accum - next : nargs == 1 ? - next : next; |
7921925c | 2438 | break; |
7a283f36 GM |
2439 | case Amult: |
2440 | accum *= next; | |
2441 | break; | |
7921925c | 2442 | case Adiv: |
7a283f36 GM |
2443 | if (!argnum) |
2444 | accum = next; | |
87fbf902 RS |
2445 | else |
2446 | { | |
2447 | if (next == 0) | |
740ef0b5 | 2448 | xsignal0 (Qarith_error); |
87fbf902 RS |
2449 | accum /= next; |
2450 | } | |
7921925c | 2451 | break; |
7a283f36 GM |
2452 | case Alogand: |
2453 | accum &= next; | |
2454 | break; | |
2455 | case Alogior: | |
2456 | accum |= next; | |
2457 | break; | |
2458 | case Alogxor: | |
2459 | accum ^= next; | |
2460 | break; | |
2461 | case Amax: | |
2462 | if (!argnum || next > accum) | |
2463 | accum = next; | |
2464 | break; | |
2465 | case Amin: | |
2466 | if (!argnum || next < accum) | |
2467 | accum = next; | |
2468 | break; | |
7921925c JB |
2469 | } |
2470 | } | |
2471 | ||
f187f1f7 | 2472 | XSETINT (val, accum); |
7921925c JB |
2473 | return val; |
2474 | } | |
2475 | ||
1a2f2d33 KH |
2476 | #undef isnan |
2477 | #define isnan(x) ((x) != (x)) | |
2478 | ||
7a283f36 | 2479 | static Lisp_Object |
7921925c JB |
2480 | float_arith_driver (accum, argnum, code, nargs, args) |
2481 | double accum; | |
2482 | register int argnum; | |
2483 | enum arithop code; | |
2484 | int nargs; | |
2485 | register Lisp_Object *args; | |
2486 | { | |
2487 | register Lisp_Object val; | |
2488 | double next; | |
7403b5c8 | 2489 | |
7921925c JB |
2490 | for (; argnum < nargs; argnum++) |
2491 | { | |
2492 | val = args[argnum]; /* using args[argnum] as argument to CHECK_NUMBER_... */ | |
b7826503 | 2493 | CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (val); |
7921925c | 2494 | |
e9ebc175 | 2495 | if (FLOATP (val)) |
7921925c | 2496 | { |
7539e11f | 2497 | next = XFLOAT_DATA (val); |
7921925c JB |
2498 | } |
2499 | else | |
2500 | { | |
2501 | args[argnum] = val; /* runs into a compiler bug. */ | |
2502 | next = XINT (args[argnum]); | |
2503 | } | |
0220c518 | 2504 | switch (SWITCH_ENUM_CAST (code)) |
7921925c JB |
2505 | { |
2506 | case Aadd: | |
2507 | accum += next; | |
2508 | break; | |
2509 | case Asub: | |
e64981da | 2510 | accum = argnum ? accum - next : nargs == 1 ? - next : next; |
7921925c JB |
2511 | break; |
2512 | case Amult: | |
2513 | accum *= next; | |
2514 | break; | |
2515 | case Adiv: | |
2516 | if (!argnum) | |
2517 | accum = next; | |
2518 | else | |
87fbf902 | 2519 | { |
ad8d56b9 | 2520 | if (! IEEE_FLOATING_POINT && next == 0) |
740ef0b5 | 2521 | xsignal0 (Qarith_error); |
87fbf902 RS |
2522 | accum /= next; |
2523 | } | |
7921925c JB |
2524 | break; |
2525 | case Alogand: | |
2526 | case Alogior: | |
2527 | case Alogxor: | |
2528 | return wrong_type_argument (Qinteger_or_marker_p, val); | |
2529 | case Amax: | |
1a2f2d33 | 2530 | if (!argnum || isnan (next) || next > accum) |
7921925c JB |
2531 | accum = next; |
2532 | break; | |
2533 | case Amin: | |
1a2f2d33 | 2534 | if (!argnum || isnan (next) || next < accum) |
7921925c JB |
2535 | accum = next; |
2536 | break; | |
2537 | } | |
2538 | } | |
2539 | ||
2540 | return make_float (accum); | |
2541 | } | |
cc94f3b2 | 2542 | |
7921925c JB |
2543 | |
2544 | DEFUN ("+", Fplus, Splus, 0, MANY, 0, | |
8c1a1077 PJ |
2545 | doc: /* Return sum of any number of arguments, which are numbers or markers. |
2546 | usage: (+ &rest NUMBERS-OR-MARKERS) */) | |
2547 | (nargs, args) | |
7921925c JB |
2548 | int nargs; |
2549 | Lisp_Object *args; | |
2550 | { | |
2551 | return arith_driver (Aadd, nargs, args); | |
2552 | } | |
2553 | ||
2554 | DEFUN ("-", Fminus, Sminus, 0, MANY, 0, | |
558ee900 | 2555 | doc: /* Negate number or subtract numbers or markers and return the result. |
8c1a1077 | 2556 | With one arg, negates it. With more than one arg, |
f44fba9e | 2557 | subtracts all but the first from the first. |
8c1a1077 PJ |
2558 | usage: (- &optional NUMBER-OR-MARKER &rest MORE-NUMBERS-OR-MARKERS) */) |
2559 | (nargs, args) | |
7921925c JB |
2560 | int nargs; |
2561 | Lisp_Object *args; | |
2562 | { | |
2563 | return arith_driver (Asub, nargs, args); | |
2564 | } | |
2565 | ||
2566 | DEFUN ("*", Ftimes, Stimes, 0, MANY, 0, | |
be24eadf | 2567 | doc: /* Return product of any number of arguments, which are numbers or markers. |
8c1a1077 PJ |
2568 | usage: (* &rest NUMBERS-OR-MARKERS) */) |
2569 | (nargs, args) | |
7921925c JB |
2570 | int nargs; |
2571 | Lisp_Object *args; | |
2572 | { | |
2573 | return arith_driver (Amult, nargs, args); | |
2574 | } | |
2575 | ||
2576 | DEFUN ("/", Fquo, Squo, 2, MANY, 0, | |
be24eadf | 2577 | doc: /* Return first argument divided by all the remaining arguments. |
f44fba9e | 2578 | The arguments must be numbers or markers. |
8c1a1077 PJ |
2579 | usage: (/ DIVIDEND DIVISOR &rest DIVISORS) */) |
2580 | (nargs, args) | |
7921925c JB |
2581 | int nargs; |
2582 | Lisp_Object *args; | |
2583 | { | |
28712a21 | 2584 | int argnum; |
7ef98053 | 2585 | for (argnum = 2; argnum < nargs; argnum++) |
28712a21 JB |
2586 | if (FLOATP (args[argnum])) |
2587 | return float_arith_driver (0, 0, Adiv, nargs, args); | |
7921925c JB |
2588 | return arith_driver (Adiv, nargs, args); |
2589 | } | |
2590 | ||
2591 | DEFUN ("%", Frem, Srem, 2, 2, 0, | |
be24eadf | 2592 | doc: /* Return remainder of X divided by Y. |
8c1a1077 PJ |
2593 | Both must be integers or markers. */) |
2594 | (x, y) | |
d9c2a0f2 | 2595 | register Lisp_Object x, y; |
7921925c JB |
2596 | { |
2597 | Lisp_Object val; | |
2598 | ||
b7826503 PJ |
2599 | CHECK_NUMBER_COERCE_MARKER (x); |
2600 | CHECK_NUMBER_COERCE_MARKER (y); | |
7921925c | 2601 | |
d9c2a0f2 | 2602 | if (XFASTINT (y) == 0) |
740ef0b5 | 2603 | xsignal0 (Qarith_error); |
87fbf902 | 2604 | |
d9c2a0f2 | 2605 | XSETINT (val, XINT (x) % XINT (y)); |
7921925c JB |
2606 | return val; |
2607 | } | |
2608 | ||
1d66a5fa KH |
2609 | #ifndef HAVE_FMOD |
2610 | double | |
2611 | fmod (f1, f2) | |
2612 | double f1, f2; | |
2613 | { | |
bc1c9d7e PE |
2614 | double r = f1; |
2615 | ||
fa43b1e8 KH |
2616 | if (f2 < 0.0) |
2617 | f2 = -f2; | |
bc1c9d7e PE |
2618 | |
2619 | /* If the magnitude of the result exceeds that of the divisor, or | |
2620 | the sign of the result does not agree with that of the dividend, | |
2621 | iterate with the reduced value. This does not yield a | |
2622 | particularly accurate result, but at least it will be in the | |
2623 | range promised by fmod. */ | |
2624 | do | |
2625 | r -= f2 * floor (r / f2); | |
2626 | while (f2 <= (r < 0 ? -r : r) || ((r < 0) != (f1 < 0) && ! isnan (r))); | |
2627 | ||
2628 | return r; | |
1d66a5fa KH |
2629 | } |
2630 | #endif /* ! HAVE_FMOD */ | |
2631 | ||
44fa9da5 | 2632 | DEFUN ("mod", Fmod, Smod, 2, 2, 0, |
be24eadf | 2633 | doc: /* Return X modulo Y. |
8c1a1077 PJ |
2634 | The result falls between zero (inclusive) and Y (exclusive). |
2635 | Both X and Y must be numbers or markers. */) | |
2636 | (x, y) | |
d9c2a0f2 | 2637 | register Lisp_Object x, y; |
44fa9da5 PE |
2638 | { |
2639 | Lisp_Object val; | |
5260234d | 2640 | EMACS_INT i1, i2; |
44fa9da5 | 2641 | |
b7826503 PJ |
2642 | CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (x); |
2643 | CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (y); | |
44fa9da5 | 2644 | |
d9c2a0f2 | 2645 | if (FLOATP (x) || FLOATP (y)) |
ad8d56b9 PE |
2646 | return fmod_float (x, y); |
2647 | ||
d9c2a0f2 EN |
2648 | i1 = XINT (x); |
2649 | i2 = XINT (y); | |
44fa9da5 PE |
2650 | |
2651 | if (i2 == 0) | |
740ef0b5 | 2652 | xsignal0 (Qarith_error); |
7403b5c8 | 2653 | |
44fa9da5 PE |
2654 | i1 %= i2; |
2655 | ||
2656 | /* If the "remainder" comes out with the wrong sign, fix it. */ | |
04f7ec69 | 2657 | if (i2 < 0 ? i1 > 0 : i1 < 0) |
44fa9da5 PE |
2658 | i1 += i2; |
2659 | ||
f187f1f7 | 2660 | XSETINT (val, i1); |
44fa9da5 PE |
2661 | return val; |
2662 | } | |
2663 | ||
7921925c | 2664 | DEFUN ("max", Fmax, Smax, 1, MANY, 0, |
8c1a1077 | 2665 | doc: /* Return largest of all the arguments (which must be numbers or markers). |
f44fba9e | 2666 | The value is always a number; markers are converted to numbers. |
8c1a1077 PJ |
2667 | usage: (max NUMBER-OR-MARKER &rest NUMBERS-OR-MARKERS) */) |
2668 | (nargs, args) | |
7921925c JB |
2669 | int nargs; |
2670 | Lisp_Object *args; | |
2671 | { | |
2672 | return arith_driver (Amax, nargs, args); | |
2673 | } | |
2674 | ||
2675 | DEFUN ("min", Fmin, Smin, 1, MANY, 0, | |
8c1a1077 | 2676 | doc: /* Return smallest of all the arguments (which must be numbers or markers). |
f44fba9e | 2677 | The value is always a number; markers are converted to numbers. |
8c1a1077 PJ |
2678 | usage: (min NUMBER-OR-MARKER &rest NUMBERS-OR-MARKERS) */) |
2679 | (nargs, args) | |
7921925c JB |
2680 | int nargs; |
2681 | Lisp_Object *args; | |
2682 | { | |
2683 | return arith_driver (Amin, nargs, args); | |
2684 | } | |
2685 | ||
2686 | DEFUN ("logand", Flogand, Slogand, 0, MANY, 0, | |
8c1a1077 | 2687 | doc: /* Return bitwise-and of all the arguments. |
f44fba9e | 2688 | Arguments may be integers, or markers converted to integers. |
8c1a1077 PJ |
2689 | usage: (logand &rest INTS-OR-MARKERS) */) |
2690 | (nargs, args) | |
7921925c JB |
2691 | int nargs; |
2692 | Lisp_Object *args; | |
2693 | { | |
2694 | return arith_driver (Alogand, nargs, args); | |
2695 | } | |
2696 | ||
2697 | DEFUN ("logior", Flogior, Slogior, 0, MANY, 0, | |
8c1a1077 | 2698 | doc: /* Return bitwise-or of all the arguments. |
f44fba9e | 2699 | Arguments may be integers, or markers converted to integers. |
8c1a1077 PJ |
2700 | usage: (logior &rest INTS-OR-MARKERS) */) |
2701 | (nargs, args) | |
7921925c JB |
2702 | int nargs; |
2703 | Lisp_Object *args; | |
2704 | { | |
2705 | return arith_driver (Alogior, nargs, args); | |
2706 | } | |
2707 | ||
2708 | DEFUN ("logxor", Flogxor, Slogxor, 0, MANY, 0, | |
8c1a1077 | 2709 | doc: /* Return bitwise-exclusive-or of all the arguments. |
f44fba9e | 2710 | Arguments may be integers, or markers converted to integers. |
31fb1b2c | 2711 | usage: (logxor &rest INTS-OR-MARKERS) */) |
8c1a1077 | 2712 | (nargs, args) |
7921925c JB |
2713 | int nargs; |
2714 | Lisp_Object *args; | |
2715 | { | |
2716 | return arith_driver (Alogxor, nargs, args); | |
2717 | } | |
2718 | ||
2719 | DEFUN ("ash", Fash, Sash, 2, 2, 0, | |
8c1a1077 PJ |
2720 | doc: /* Return VALUE with its bits shifted left by COUNT. |
2721 | If COUNT is negative, shifting is actually to the right. | |
2722 | In this case, the sign bit is duplicated. */) | |
2723 | (value, count) | |
3b9f7964 | 2724 | register Lisp_Object value, count; |
7921925c JB |
2725 | { |
2726 | register Lisp_Object val; | |
2727 | ||
b7826503 PJ |
2728 | CHECK_NUMBER (value); |
2729 | CHECK_NUMBER (count); | |
7921925c | 2730 | |
81d70626 RS |
2731 | if (XINT (count) >= BITS_PER_EMACS_INT) |
2732 | XSETINT (val, 0); | |
2733 | else if (XINT (count) > 0) | |
3d9652eb | 2734 | XSETINT (val, XINT (value) << XFASTINT (count)); |
81d70626 RS |
2735 | else if (XINT (count) <= -BITS_PER_EMACS_INT) |
2736 | XSETINT (val, XINT (value) < 0 ? -1 : 0); | |
7921925c | 2737 | else |
3d9652eb | 2738 | XSETINT (val, XINT (value) >> -XINT (count)); |
7921925c JB |
2739 | return val; |
2740 | } | |
2741 | ||
2742 | DEFUN ("lsh", Flsh, Slsh, 2, 2, 0, | |
8c1a1077 PJ |
2743 | doc: /* Return VALUE with its bits shifted left by COUNT. |
2744 | If COUNT is negative, shifting is actually to the right. | |
3a9b1297 | 2745 | In this case, zeros are shifted in on the left. */) |
8c1a1077 | 2746 | (value, count) |
3d9652eb | 2747 | register Lisp_Object value, count; |
7921925c JB |
2748 | { |
2749 | register Lisp_Object val; | |
2750 | ||
b7826503 PJ |
2751 | CHECK_NUMBER (value); |
2752 | CHECK_NUMBER (count); | |
7921925c | 2753 | |
81d70626 RS |
2754 | if (XINT (count) >= BITS_PER_EMACS_INT) |
2755 | XSETINT (val, 0); | |
2756 | else if (XINT (count) > 0) | |
3d9652eb | 2757 | XSETINT (val, (EMACS_UINT) XUINT (value) << XFASTINT (count)); |
81d70626 RS |
2758 | else if (XINT (count) <= -BITS_PER_EMACS_INT) |
2759 | XSETINT (val, 0); | |
7921925c | 2760 | else |
3d9652eb | 2761 | XSETINT (val, (EMACS_UINT) XUINT (value) >> -XINT (count)); |
7921925c JB |
2762 | return val; |
2763 | } | |
2764 | ||
2765 | DEFUN ("1+", Fadd1, Sadd1, 1, 1, 0, | |
8c1a1077 PJ |
2766 | doc: /* Return NUMBER plus one. NUMBER may be a number or a marker. |
2767 | Markers are converted to integers. */) | |
2768 | (number) | |
d9c2a0f2 | 2769 | register Lisp_Object number; |
7921925c | 2770 | { |
b7826503 | 2771 | CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (number); |
7921925c | 2772 | |
d9c2a0f2 | 2773 | if (FLOATP (number)) |
7539e11f | 2774 | return (make_float (1.0 + XFLOAT_DATA (number))); |
7921925c | 2775 | |
d9c2a0f2 EN |
2776 | XSETINT (number, XINT (number) + 1); |
2777 | return number; | |
7921925c JB |
2778 | } |
2779 | ||
2780 | DEFUN ("1-", Fsub1, Ssub1, 1, 1, 0, | |
8c1a1077 PJ |
2781 | doc: /* Return NUMBER minus one. NUMBER may be a number or a marker. |
2782 | Markers are converted to integers. */) | |
2783 | (number) | |
d9c2a0f2 | 2784 | register Lisp_Object number; |
7921925c | 2785 | { |
b7826503 | 2786 | CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (number); |
7921925c | 2787 | |
d9c2a0f2 | 2788 | if (FLOATP (number)) |
7539e11f | 2789 | return (make_float (-1.0 + XFLOAT_DATA (number))); |
7921925c | 2790 | |
d9c2a0f2 EN |
2791 | XSETINT (number, XINT (number) - 1); |
2792 | return number; | |
7921925c JB |
2793 | } |
2794 | ||
2795 | DEFUN ("lognot", Flognot, Slognot, 1, 1, 0, | |
8c1a1077 PJ |
2796 | doc: /* Return the bitwise complement of NUMBER. NUMBER must be an integer. */) |
2797 | (number) | |
d9c2a0f2 | 2798 | register Lisp_Object number; |
7921925c | 2799 | { |
b7826503 | 2800 | CHECK_NUMBER (number); |
53924017 | 2801 | XSETINT (number, ~XINT (number)); |
d9c2a0f2 | 2802 | return number; |
7921925c | 2803 | } |
6b61353c KH |
2804 | |
2805 | DEFUN ("byteorder", Fbyteorder, Sbyteorder, 0, 0, 0, | |
2806 | doc: /* Return the byteorder for the machine. | |
2807 | Returns 66 (ASCII uppercase B) for big endian machines or 108 (ASCII | |
2808 | lowercase l) for small endian machines. */) | |
2809 | () | |
2810 | { | |
2811 | unsigned i = 0x04030201; | |
2812 | int order = *(char *)&i == 1 ? 108 : 66; | |
2813 | ||
2814 | return make_number (order); | |
2815 | } | |
2816 | ||
2817 | ||
7921925c JB |
2818 | \f |
2819 | void | |
2820 | syms_of_data () | |
2821 | { | |
6315e761 RS |
2822 | Lisp_Object error_tail, arith_tail; |
2823 | ||
7921925c JB |
2824 | Qquote = intern ("quote"); |
2825 | Qlambda = intern ("lambda"); | |
2826 | Qsubr = intern ("subr"); | |
2827 | Qerror_conditions = intern ("error-conditions"); | |
2828 | Qerror_message = intern ("error-message"); | |
2829 | Qtop_level = intern ("top-level"); | |
2830 | ||
2831 | Qerror = intern ("error"); | |
2832 | Qquit = intern ("quit"); | |
2833 | Qwrong_type_argument = intern ("wrong-type-argument"); | |
2834 | Qargs_out_of_range = intern ("args-out-of-range"); | |
2835 | Qvoid_function = intern ("void-function"); | |
ffd56f97 | 2836 | Qcyclic_function_indirection = intern ("cyclic-function-indirection"); |
f35d5bad | 2837 | Qcyclic_variable_indirection = intern ("cyclic-variable-indirection"); |
7921925c JB |
2838 | Qvoid_variable = intern ("void-variable"); |
2839 | Qsetting_constant = intern ("setting-constant"); | |
2840 | Qinvalid_read_syntax = intern ("invalid-read-syntax"); | |
2841 | ||
2842 | Qinvalid_function = intern ("invalid-function"); | |
2843 | Qwrong_number_of_arguments = intern ("wrong-number-of-arguments"); | |
2844 | Qno_catch = intern ("no-catch"); | |
2845 | Qend_of_file = intern ("end-of-file"); | |
2846 | Qarith_error = intern ("arith-error"); | |
2847 | Qbeginning_of_buffer = intern ("beginning-of-buffer"); | |
2848 | Qend_of_buffer = intern ("end-of-buffer"); | |
2849 | Qbuffer_read_only = intern ("buffer-read-only"); | |
8f9f49d7 | 2850 | Qtext_read_only = intern ("text-read-only"); |
3b8819d6 | 2851 | Qmark_inactive = intern ("mark-inactive"); |
7921925c JB |
2852 | |
2853 | Qlistp = intern ("listp"); | |
2854 | Qconsp = intern ("consp"); | |
2855 | Qsymbolp = intern ("symbolp"); | |
cda9b832 | 2856 | Qkeywordp = intern ("keywordp"); |
7921925c JB |
2857 | Qintegerp = intern ("integerp"); |
2858 | Qnatnump = intern ("natnump"); | |
8e86942b | 2859 | Qwholenump = intern ("wholenump"); |
7921925c JB |
2860 | Qstringp = intern ("stringp"); |
2861 | Qarrayp = intern ("arrayp"); | |
2862 | Qsequencep = intern ("sequencep"); | |
2863 | Qbufferp = intern ("bufferp"); | |
2864 | Qvectorp = intern ("vectorp"); | |
2865 | Qchar_or_string_p = intern ("char-or-string-p"); | |
2866 | Qmarkerp = intern ("markerp"); | |
07bd8472 | 2867 | Qbuffer_or_string_p = intern ("buffer-or-string-p"); |
7921925c JB |
2868 | Qinteger_or_marker_p = intern ("integer-or-marker-p"); |
2869 | Qboundp = intern ("boundp"); | |
2870 | Qfboundp = intern ("fboundp"); | |
2871 | ||
7921925c JB |
2872 | Qfloatp = intern ("floatp"); |
2873 | Qnumberp = intern ("numberp"); | |
2874 | Qnumber_or_marker_p = intern ("number-or-marker-p"); | |
7921925c | 2875 | |
4d276982 | 2876 | Qchar_table_p = intern ("char-table-p"); |
7f0edce7 | 2877 | Qvector_or_char_table_p = intern ("vector-or-char-table-p"); |
4d276982 | 2878 | |
6f0e897f DL |
2879 | Qsubrp = intern ("subrp"); |
2880 | Qunevalled = intern ("unevalled"); | |
2881 | Qmany = intern ("many"); | |
2882 | ||
7921925c JB |
2883 | Qcdr = intern ("cdr"); |
2884 | ||
f845f2c9 | 2885 | /* Handle automatic advice activation */ |
ab297811 | 2886 | Qad_advice_info = intern ("ad-advice-info"); |
c1307a23 | 2887 | Qad_activate_internal = intern ("ad-activate-internal"); |
f845f2c9 | 2888 | |
6315e761 RS |
2889 | error_tail = Fcons (Qerror, Qnil); |
2890 | ||
7921925c JB |
2891 | /* ERROR is used as a signaler for random errors for which nothing else is right */ |
2892 | ||
2893 | Fput (Qerror, Qerror_conditions, | |
6315e761 | 2894 | error_tail); |
7921925c JB |
2895 | Fput (Qerror, Qerror_message, |
2896 | build_string ("error")); | |
2897 | ||
2898 | Fput (Qquit, Qerror_conditions, | |
2899 | Fcons (Qquit, Qnil)); | |
2900 | Fput (Qquit, Qerror_message, | |
2901 | build_string ("Quit")); | |
2902 | ||
2903 | Fput (Qwrong_type_argument, Qerror_conditions, | |
6315e761 | 2904 | Fcons (Qwrong_type_argument, error_tail)); |
7921925c JB |
2905 | Fput (Qwrong_type_argument, Qerror_message, |
2906 | build_string ("Wrong type argument")); | |
2907 | ||
2908 | Fput (Qargs_out_of_range, Qerror_conditions, | |
6315e761 | 2909 | Fcons (Qargs_out_of_range, error_tail)); |
7921925c JB |
2910 | Fput (Qargs_out_of_range, Qerror_message, |
2911 | build_string ("Args out of range")); | |
2912 | ||
2913 | Fput (Qvoid_function, Qerror_conditions, | |
6315e761 | 2914 | Fcons (Qvoid_function, error_tail)); |
7921925c JB |
2915 | Fput (Qvoid_function, Qerror_message, |
2916 | build_string ("Symbol's function definition is void")); | |
2917 | ||
ffd56f97 | 2918 | Fput (Qcyclic_function_indirection, Qerror_conditions, |
6315e761 | 2919 | Fcons (Qcyclic_function_indirection, error_tail)); |
ffd56f97 JB |
2920 | Fput (Qcyclic_function_indirection, Qerror_message, |
2921 | build_string ("Symbol's chain of function indirections contains a loop")); | |
2922 | ||
f35d5bad GM |
2923 | Fput (Qcyclic_variable_indirection, Qerror_conditions, |
2924 | Fcons (Qcyclic_variable_indirection, error_tail)); | |
2925 | Fput (Qcyclic_variable_indirection, Qerror_message, | |
2926 | build_string ("Symbol's chain of variable indirections contains a loop")); | |
2927 | ||
13d95cc0 GM |
2928 | Qcircular_list = intern ("circular-list"); |
2929 | staticpro (&Qcircular_list); | |
2930 | Fput (Qcircular_list, Qerror_conditions, | |
2931 | Fcons (Qcircular_list, error_tail)); | |
2932 | Fput (Qcircular_list, Qerror_message, | |
2933 | build_string ("List contains a loop")); | |
2934 | ||
7921925c | 2935 | Fput (Qvoid_variable, Qerror_conditions, |
6315e761 | 2936 | Fcons (Qvoid_variable, error_tail)); |
7921925c JB |
2937 | Fput (Qvoid_variable, Qerror_message, |
2938 | build_string ("Symbol's value as variable is void")); | |
2939 | ||
2940 | Fput (Qsetting_constant, Qerror_conditions, | |
6315e761 | 2941 | Fcons (Qsetting_constant, error_tail)); |
7921925c JB |
2942 | Fput (Qsetting_constant, Qerror_message, |
2943 | build_string ("Attempt to set a constant symbol")); | |
2944 | ||
2945 | Fput (Qinvalid_read_syntax, Qerror_conditions, | |
6315e761 | 2946 | Fcons (Qinvalid_read_syntax, error_tail)); |
7921925c JB |
2947 | Fput (Qinvalid_read_syntax, Qerror_message, |
2948 | build_string ("Invalid read syntax")); | |
2949 | ||
2950 | Fput (Qinvalid_function, Qerror_conditions, | |
6315e761 | 2951 | Fcons (Qinvalid_function, error_tail)); |
7921925c JB |
2952 | Fput (Qinvalid_function, Qerror_message, |
2953 | build_string ("Invalid function")); | |
2954 | ||
2955 | Fput (Qwrong_number_of_arguments, Qerror_conditions, | |
6315e761 | 2956 | Fcons (Qwrong_number_of_arguments, error_tail)); |
7921925c JB |
2957 | Fput (Qwrong_number_of_arguments, Qerror_message, |
2958 | build_string ("Wrong number of arguments")); | |
2959 | ||
2960 | Fput (Qno_catch, Qerror_conditions, | |
6315e761 | 2961 | Fcons (Qno_catch, error_tail)); |
7921925c JB |
2962 | Fput (Qno_catch, Qerror_message, |
2963 | build_string ("No catch for tag")); | |
2964 | ||
2965 | Fput (Qend_of_file, Qerror_conditions, | |
6315e761 | 2966 | Fcons (Qend_of_file, error_tail)); |
7921925c JB |
2967 | Fput (Qend_of_file, Qerror_message, |
2968 | build_string ("End of file during parsing")); | |
2969 | ||
6315e761 | 2970 | arith_tail = Fcons (Qarith_error, error_tail); |
7921925c | 2971 | Fput (Qarith_error, Qerror_conditions, |
6315e761 | 2972 | arith_tail); |
7921925c JB |
2973 | Fput (Qarith_error, Qerror_message, |
2974 | build_string ("Arithmetic error")); | |
2975 | ||
2976 | Fput (Qbeginning_of_buffer, Qerror_conditions, | |
6315e761 | 2977 | Fcons (Qbeginning_of_buffer, error_tail)); |
7921925c JB |
2978 | Fput (Qbeginning_of_buffer, Qerror_message, |
2979 | build_string ("Beginning of buffer")); | |
2980 | ||
2981 | Fput (Qend_of_buffer, Qerror_conditions, | |
6315e761 | 2982 | Fcons (Qend_of_buffer, error_tail)); |
7921925c JB |
2983 | Fput (Qend_of_buffer, Qerror_message, |
2984 | build_string ("End of buffer")); | |
2985 | ||
2986 | Fput (Qbuffer_read_only, Qerror_conditions, | |
6315e761 | 2987 | Fcons (Qbuffer_read_only, error_tail)); |
7921925c JB |
2988 | Fput (Qbuffer_read_only, Qerror_message, |
2989 | build_string ("Buffer is read-only")); | |
2990 | ||
8f9f49d7 GM |
2991 | Fput (Qtext_read_only, Qerror_conditions, |
2992 | Fcons (Qtext_read_only, error_tail)); | |
2993 | Fput (Qtext_read_only, Qerror_message, | |
2994 | build_string ("Text is read-only")); | |
2995 | ||
6315e761 RS |
2996 | Qrange_error = intern ("range-error"); |
2997 | Qdomain_error = intern ("domain-error"); | |
2998 | Qsingularity_error = intern ("singularity-error"); | |
2999 | Qoverflow_error = intern ("overflow-error"); | |
3000 | Qunderflow_error = intern ("underflow-error"); | |
3001 | ||
3002 | Fput (Qdomain_error, Qerror_conditions, | |
3003 | Fcons (Qdomain_error, arith_tail)); | |
3004 | Fput (Qdomain_error, Qerror_message, | |
3005 | build_string ("Arithmetic domain error")); | |
3006 | ||
3007 | Fput (Qrange_error, Qerror_conditions, | |
3008 | Fcons (Qrange_error, arith_tail)); | |
3009 | Fput (Qrange_error, Qerror_message, | |
3010 | build_string ("Arithmetic range error")); | |
3011 | ||
3012 | Fput (Qsingularity_error, Qerror_conditions, | |
3013 | Fcons (Qsingularity_error, Fcons (Qdomain_error, arith_tail))); | |
3014 | Fput (Qsingularity_error, Qerror_message, | |
3015 | build_string ("Arithmetic singularity error")); | |
3016 | ||
3017 | Fput (Qoverflow_error, Qerror_conditions, | |
3018 | Fcons (Qoverflow_error, Fcons (Qdomain_error, arith_tail))); | |
3019 | Fput (Qoverflow_error, Qerror_message, | |
3020 | build_string ("Arithmetic overflow error")); | |
3021 | ||
3022 | Fput (Qunderflow_error, Qerror_conditions, | |
3023 | Fcons (Qunderflow_error, Fcons (Qdomain_error, arith_tail))); | |
3024 | Fput (Qunderflow_error, Qerror_message, | |
3025 | build_string ("Arithmetic underflow error")); | |
3026 | ||
3027 | staticpro (&Qrange_error); | |
3028 | staticpro (&Qdomain_error); | |
3029 | staticpro (&Qsingularity_error); | |
3030 | staticpro (&Qoverflow_error); | |
3031 | staticpro (&Qunderflow_error); | |
6315e761 | 3032 | |
7921925c JB |
3033 | staticpro (&Qnil); |
3034 | staticpro (&Qt); | |
3035 | staticpro (&Qquote); | |
3036 | staticpro (&Qlambda); | |
3037 | staticpro (&Qsubr); | |
3038 | staticpro (&Qunbound); | |
3039 | staticpro (&Qerror_conditions); | |
3040 | staticpro (&Qerror_message); | |
3041 | staticpro (&Qtop_level); | |
3042 | ||
3043 | staticpro (&Qerror); | |
3044 | staticpro (&Qquit); | |
3045 | staticpro (&Qwrong_type_argument); | |
3046 | staticpro (&Qargs_out_of_range); | |
3047 | staticpro (&Qvoid_function); | |
ffd56f97 | 3048 | staticpro (&Qcyclic_function_indirection); |
dfad0b34 | 3049 | staticpro (&Qcyclic_variable_indirection); |
7921925c JB |
3050 | staticpro (&Qvoid_variable); |
3051 | staticpro (&Qsetting_constant); | |
3052 | staticpro (&Qinvalid_read_syntax); | |
3053 | staticpro (&Qwrong_number_of_arguments); | |
3054 | staticpro (&Qinvalid_function); | |
3055 | staticpro (&Qno_catch); | |
3056 | staticpro (&Qend_of_file); | |
3057 | staticpro (&Qarith_error); | |
3058 | staticpro (&Qbeginning_of_buffer); | |
3059 | staticpro (&Qend_of_buffer); | |
3060 | staticpro (&Qbuffer_read_only); | |
8f9f49d7 | 3061 | staticpro (&Qtext_read_only); |
638b77e6 | 3062 | staticpro (&Qmark_inactive); |
7921925c JB |
3063 | |
3064 | staticpro (&Qlistp); | |
3065 | staticpro (&Qconsp); | |
3066 | staticpro (&Qsymbolp); | |
cda9b832 | 3067 | staticpro (&Qkeywordp); |
7921925c JB |
3068 | staticpro (&Qintegerp); |
3069 | staticpro (&Qnatnump); | |
8e86942b | 3070 | staticpro (&Qwholenump); |
7921925c JB |
3071 | staticpro (&Qstringp); |
3072 | staticpro (&Qarrayp); | |
3073 | staticpro (&Qsequencep); | |
3074 | staticpro (&Qbufferp); | |
3075 | staticpro (&Qvectorp); | |
3076 | staticpro (&Qchar_or_string_p); | |
3077 | staticpro (&Qmarkerp); | |
07bd8472 | 3078 | staticpro (&Qbuffer_or_string_p); |
7921925c | 3079 | staticpro (&Qinteger_or_marker_p); |
7921925c | 3080 | staticpro (&Qfloatp); |
464f8898 RS |
3081 | staticpro (&Qnumberp); |
3082 | staticpro (&Qnumber_or_marker_p); | |
4d276982 | 3083 | staticpro (&Qchar_table_p); |
7f0edce7 | 3084 | staticpro (&Qvector_or_char_table_p); |
6f0e897f DL |
3085 | staticpro (&Qsubrp); |
3086 | staticpro (&Qmany); | |
3087 | staticpro (&Qunevalled); | |
7921925c JB |
3088 | |
3089 | staticpro (&Qboundp); | |
3090 | staticpro (&Qfboundp); | |
3091 | staticpro (&Qcdr); | |
ab297811 | 3092 | staticpro (&Qad_advice_info); |
c1307a23 | 3093 | staticpro (&Qad_activate_internal); |
7921925c | 3094 | |
39bcc759 RS |
3095 | /* Types that type-of returns. */ |
3096 | Qinteger = intern ("integer"); | |
3097 | Qsymbol = intern ("symbol"); | |
3098 | Qstring = intern ("string"); | |
3099 | Qcons = intern ("cons"); | |
3100 | Qmarker = intern ("marker"); | |
3101 | Qoverlay = intern ("overlay"); | |
3102 | Qfloat = intern ("float"); | |
3103 | Qwindow_configuration = intern ("window-configuration"); | |
3104 | Qprocess = intern ("process"); | |
3105 | Qwindow = intern ("window"); | |
3106 | /* Qsubr = intern ("subr"); */ | |
3107 | Qcompiled_function = intern ("compiled-function"); | |
3108 | Qbuffer = intern ("buffer"); | |
3109 | Qframe = intern ("frame"); | |
3110 | Qvector = intern ("vector"); | |
fc67d5be KH |
3111 | Qchar_table = intern ("char-table"); |
3112 | Qbool_vector = intern ("bool-vector"); | |
81dc5de5 | 3113 | Qhash_table = intern ("hash-table"); |
39bcc759 RS |
3114 | |
3115 | staticpro (&Qinteger); | |
3116 | staticpro (&Qsymbol); | |
3117 | staticpro (&Qstring); | |
3118 | staticpro (&Qcons); | |
3119 | staticpro (&Qmarker); | |
3120 | staticpro (&Qoverlay); | |
3121 | staticpro (&Qfloat); | |
3122 | staticpro (&Qwindow_configuration); | |
3123 | staticpro (&Qprocess); | |
3124 | staticpro (&Qwindow); | |
3125 | /* staticpro (&Qsubr); */ | |
3126 | staticpro (&Qcompiled_function); | |
3127 | staticpro (&Qbuffer); | |
3128 | staticpro (&Qframe); | |
3129 | staticpro (&Qvector); | |
fc67d5be KH |
3130 | staticpro (&Qchar_table); |
3131 | staticpro (&Qbool_vector); | |
81dc5de5 | 3132 | staticpro (&Qhash_table); |
39bcc759 | 3133 | |
f35d5bad | 3134 | defsubr (&Sindirect_variable); |
6b61353c | 3135 | defsubr (&Sinteractive_form); |
7921925c JB |
3136 | defsubr (&Seq); |
3137 | defsubr (&Snull); | |
39bcc759 | 3138 | defsubr (&Stype_of); |
7921925c JB |
3139 | defsubr (&Slistp); |
3140 | defsubr (&Snlistp); | |
3141 | defsubr (&Sconsp); | |
3142 | defsubr (&Satom); | |
3143 | defsubr (&Sintegerp); | |
464f8898 | 3144 | defsubr (&Sinteger_or_marker_p); |
7921925c JB |
3145 | defsubr (&Snumberp); |
3146 | defsubr (&Snumber_or_marker_p); | |
464f8898 | 3147 | defsubr (&Sfloatp); |
7921925c JB |
3148 | defsubr (&Snatnump); |
3149 | defsubr (&Ssymbolp); | |
cda9b832 | 3150 | defsubr (&Skeywordp); |
7921925c | 3151 | defsubr (&Sstringp); |
0f56470d | 3152 | defsubr (&Smultibyte_string_p); |
7921925c | 3153 | defsubr (&Svectorp); |
4d276982 | 3154 | defsubr (&Schar_table_p); |
7f0edce7 | 3155 | defsubr (&Svector_or_char_table_p); |
4d276982 | 3156 | defsubr (&Sbool_vector_p); |
7921925c JB |
3157 | defsubr (&Sarrayp); |
3158 | defsubr (&Ssequencep); | |
3159 | defsubr (&Sbufferp); | |
3160 | defsubr (&Smarkerp); | |
7921925c | 3161 | defsubr (&Ssubrp); |
dbc4e1c1 | 3162 | defsubr (&Sbyte_code_function_p); |
7921925c JB |
3163 | defsubr (&Schar_or_string_p); |
3164 | defsubr (&Scar); | |
3165 | defsubr (&Scdr); | |
3166 | defsubr (&Scar_safe); | |
3167 | defsubr (&Scdr_safe); | |
3168 | defsubr (&Ssetcar); | |
3169 | defsubr (&Ssetcdr); | |
3170 | defsubr (&Ssymbol_function); | |
ffd56f97 | 3171 | defsubr (&Sindirect_function); |
7921925c JB |
3172 | defsubr (&Ssymbol_plist); |
3173 | defsubr (&Ssymbol_name); | |
3174 | defsubr (&Smakunbound); | |
3175 | defsubr (&Sfmakunbound); | |
3176 | defsubr (&Sboundp); | |
3177 | defsubr (&Sfboundp); | |
3178 | defsubr (&Sfset); | |
80df38a2 | 3179 | defsubr (&Sdefalias); |
7921925c JB |
3180 | defsubr (&Ssetplist); |
3181 | defsubr (&Ssymbol_value); | |
3182 | defsubr (&Sset); | |
3183 | defsubr (&Sdefault_boundp); | |
3184 | defsubr (&Sdefault_value); | |
3185 | defsubr (&Sset_default); | |
3186 | defsubr (&Ssetq_default); | |
3187 | defsubr (&Smake_variable_buffer_local); | |
3188 | defsubr (&Smake_local_variable); | |
3189 | defsubr (&Skill_local_variable); | |
b0c2d1c6 | 3190 | defsubr (&Smake_variable_frame_local); |
62476adc | 3191 | defsubr (&Slocal_variable_p); |
f4f04cee | 3192 | defsubr (&Slocal_variable_if_set_p); |
6b61353c | 3193 | defsubr (&Svariable_binding_locus); |
c40bb1ba | 3194 | #if 0 /* XXX Remove this. --lorentey */ |
2a42d440 KL |
3195 | defsubr (&Sterminal_local_value); |
3196 | defsubr (&Sset_terminal_local_value); | |
c40bb1ba | 3197 | #endif |
7921925c JB |
3198 | defsubr (&Saref); |
3199 | defsubr (&Saset); | |
f2980264 | 3200 | defsubr (&Snumber_to_string); |
25e40a4b | 3201 | defsubr (&Sstring_to_number); |
7921925c JB |
3202 | defsubr (&Seqlsign); |
3203 | defsubr (&Slss); | |
3204 | defsubr (&Sgtr); | |
3205 | defsubr (&Sleq); | |
3206 | defsubr (&Sgeq); | |
3207 | defsubr (&Sneq); | |
3208 | defsubr (&Szerop); | |
3209 | defsubr (&Splus); | |
3210 | defsubr (&Sminus); | |
3211 | defsubr (&Stimes); | |
3212 | defsubr (&Squo); | |
3213 | defsubr (&Srem); | |
44fa9da5 | 3214 | defsubr (&Smod); |
7921925c JB |
3215 | defsubr (&Smax); |
3216 | defsubr (&Smin); | |
3217 | defsubr (&Slogand); | |
3218 | defsubr (&Slogior); | |
3219 | defsubr (&Slogxor); | |
3220 | defsubr (&Slsh); | |
3221 | defsubr (&Sash); | |
3222 | defsubr (&Sadd1); | |
3223 | defsubr (&Ssub1); | |
3224 | defsubr (&Slognot); | |
6b61353c | 3225 | defsubr (&Sbyteorder); |
6f0e897f | 3226 | defsubr (&Ssubr_arity); |
0fddae66 | 3227 | defsubr (&Ssubr_name); |
8e86942b | 3228 | |
c80bd143 | 3229 | XSYMBOL (Qwholenump)->function = XSYMBOL (Qnatnump)->function; |
e6190b11 | 3230 | |
9d113d9d AS |
3231 | DEFVAR_LISP ("most-positive-fixnum", &Vmost_positive_fixnum, |
3232 | doc: /* The largest value that is representable in a Lisp integer. */); | |
3233 | Vmost_positive_fixnum = make_number (MOST_POSITIVE_FIXNUM); | |
bfb96cb7 | 3234 | |
9d113d9d AS |
3235 | DEFVAR_LISP ("most-negative-fixnum", &Vmost_negative_fixnum, |
3236 | doc: /* The smallest value that is representable in a Lisp integer. */); | |
3237 | Vmost_negative_fixnum = make_number (MOST_NEGATIVE_FIXNUM); | |
7921925c JB |
3238 | } |
3239 | ||
a33ef3ab | 3240 | SIGTYPE |
7921925c JB |
3241 | arith_error (signo) |
3242 | int signo; | |
3243 | { | |
fe42a920 | 3244 | #if defined(USG) && !defined(POSIX_SIGNALS) |
7921925c JB |
3245 | /* USG systems forget handlers when they are used; |
3246 | must reestablish each time */ | |
3247 | signal (signo, arith_error); | |
3248 | #endif /* USG */ | |
3249 | #ifdef VMS | |
3250 | /* VMS systems are like USG. */ | |
3251 | signal (signo, arith_error); | |
3252 | #endif /* VMS */ | |
3253 | #ifdef BSD4_1 | |
3254 | sigrelse (SIGFPE); | |
3255 | #else /* not BSD4_1 */ | |
e065a56e | 3256 | sigsetmask (SIGEMPTYMASK); |
7921925c JB |
3257 | #endif /* not BSD4_1 */ |
3258 | ||
333f1b6f | 3259 | SIGNAL_THREAD_CHECK (signo); |
740ef0b5 | 3260 | xsignal0 (Qarith_error); |
7921925c JB |
3261 | } |
3262 | ||
dfcf069d | 3263 | void |
7921925c JB |
3264 | init_data () |
3265 | { | |
3266 | /* Don't do this if just dumping out. | |
3267 | We don't want to call `signal' in this case | |
3268 | so that we don't have trouble with dumping | |
3269 | signal-delivering routines in an inconsistent state. */ | |
3270 | #ifndef CANNOT_DUMP | |
3271 | if (!initialized) | |
3272 | return; | |
3273 | #endif /* CANNOT_DUMP */ | |
3274 | signal (SIGFPE, arith_error); | |
7403b5c8 | 3275 | |
7921925c JB |
3276 | #ifdef uts |
3277 | signal (SIGEMT, arith_error); | |
3278 | #endif /* uts */ | |
3279 | } | |
6b61353c KH |
3280 | |
3281 | /* arch-tag: 25879798-b84d-479a-9c89-7d148e2109f7 | |
3282 | (do not change this comment) */ |