Commit | Line | Data |
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7921925c | 1 | /* Primitive operations on Lisp data types for GNU Emacs Lisp interpreter. |
7a283f36 GM |
2 | Copyright (C) 1985,86,88,93,94,95,97,98,99, 2000, 2001 |
3 | Free Software Foundation, Inc. | |
7921925c JB |
4 | |
5 | This file is part of GNU Emacs. | |
6 | ||
7 | GNU Emacs is free software; you can redistribute it and/or modify | |
8 | it under the terms of the GNU General Public License as published by | |
7c938215 | 9 | the Free Software Foundation; either version 2, or (at your option) |
7921925c JB |
10 | any later version. |
11 | ||
12 | GNU Emacs is distributed in the hope that it will be useful, | |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
16 | ||
17 | You should have received a copy of the GNU General Public License | |
18 | along with GNU Emacs; see the file COPYING. If not, write to | |
3b7ad313 EN |
19 | the Free Software Foundation, Inc., 59 Temple Place - Suite 330, |
20 | Boston, MA 02111-1307, USA. */ | |
7921925c JB |
21 | |
22 | ||
18160b98 | 23 | #include <config.h> |
68c45bf0 | 24 | #include <signal.h> |
dd8daec5 | 25 | #include <stdio.h> |
7921925c | 26 | #include "lisp.h" |
29eab336 | 27 | #include "puresize.h" |
8313c4e7 | 28 | #include "charset.h" |
7921925c | 29 | #include "buffer.h" |
077d751f | 30 | #include "keyboard.h" |
b0c2d1c6 | 31 | #include "frame.h" |
a44804c2 | 32 | #include "syssignal.h" |
fb8e9847 | 33 | |
93b91208 | 34 | #ifdef STDC_HEADERS |
2f261542 | 35 | #include <float.h> |
93b91208 | 36 | #endif |
defa77b5 | 37 | |
ad8d56b9 PE |
38 | /* If IEEE_FLOATING_POINT isn't defined, default it from FLT_*. */ |
39 | #ifndef IEEE_FLOATING_POINT | |
40 | #if (FLT_RADIX == 2 && FLT_MANT_DIG == 24 \ | |
41 | && FLT_MIN_EXP == -125 && FLT_MAX_EXP == 128) | |
42 | #define IEEE_FLOATING_POINT 1 | |
43 | #else | |
44 | #define IEEE_FLOATING_POINT 0 | |
45 | #endif | |
46 | #endif | |
47 | ||
defa77b5 RS |
48 | /* Work around a problem that happens because math.h on hpux 7 |
49 | defines two static variables--which, in Emacs, are not really static, | |
50 | because `static' is defined as nothing. The problem is that they are | |
51 | here, in floatfns.c, and in lread.c. | |
52 | These macros prevent the name conflict. */ | |
53 | #if defined (HPUX) && !defined (HPUX8) | |
54 | #define _MAXLDBL data_c_maxldbl | |
55 | #define _NMAXLDBL data_c_nmaxldbl | |
56 | #endif | |
57 | ||
7921925c | 58 | #include <math.h> |
7921925c | 59 | |
024ec58f BF |
60 | #if !defined (atof) |
61 | extern double atof (); | |
62 | #endif /* !atof */ | |
63 | ||
7921925c JB |
64 | Lisp_Object Qnil, Qt, Qquote, Qlambda, Qsubr, Qunbound; |
65 | Lisp_Object Qerror_conditions, Qerror_message, Qtop_level; | |
66 | Lisp_Object Qerror, Qquit, Qwrong_type_argument, Qargs_out_of_range; | |
ffd56f97 | 67 | Lisp_Object Qvoid_variable, Qvoid_function, Qcyclic_function_indirection; |
13d95cc0 | 68 | Lisp_Object Qcyclic_variable_indirection, Qcircular_list; |
7921925c JB |
69 | Lisp_Object Qsetting_constant, Qinvalid_read_syntax; |
70 | Lisp_Object Qinvalid_function, Qwrong_number_of_arguments, Qno_catch; | |
3b8819d6 | 71 | Lisp_Object Qend_of_file, Qarith_error, Qmark_inactive; |
7921925c | 72 | Lisp_Object Qbeginning_of_buffer, Qend_of_buffer, Qbuffer_read_only; |
8f9f49d7 | 73 | Lisp_Object Qtext_read_only; |
8e86942b | 74 | Lisp_Object Qintegerp, Qnatnump, Qwholenump, Qsymbolp, Qlistp, Qconsp; |
7921925c JB |
75 | Lisp_Object Qstringp, Qarrayp, Qsequencep, Qbufferp; |
76 | Lisp_Object Qchar_or_string_p, Qmarkerp, Qinteger_or_marker_p, Qvectorp; | |
cda9b832 | 77 | Lisp_Object Qbuffer_or_string_p, Qkeywordp; |
7921925c | 78 | Lisp_Object Qboundp, Qfboundp; |
7f0edce7 | 79 | Lisp_Object Qchar_table_p, Qvector_or_char_table_p; |
39bcc759 | 80 | |
7921925c | 81 | Lisp_Object Qcdr; |
c1307a23 | 82 | Lisp_Object Qad_advice_info, Qad_activate_internal; |
7921925c | 83 | |
6315e761 RS |
84 | Lisp_Object Qrange_error, Qdomain_error, Qsingularity_error; |
85 | Lisp_Object Qoverflow_error, Qunderflow_error; | |
86 | ||
464f8898 | 87 | Lisp_Object Qfloatp; |
7921925c | 88 | Lisp_Object Qnumberp, Qnumber_or_marker_p; |
7921925c | 89 | |
39bcc759 | 90 | static Lisp_Object Qinteger, Qsymbol, Qstring, Qcons, Qmarker, Qoverlay; |
8313c4e7 KH |
91 | static Lisp_Object Qfloat, Qwindow_configuration, Qwindow; |
92 | Lisp_Object Qprocess; | |
39bcc759 | 93 | static Lisp_Object Qcompiled_function, Qbuffer, Qframe, Qvector; |
81dc5de5 | 94 | static Lisp_Object Qchar_table, Qbool_vector, Qhash_table; |
6f0e897f | 95 | static Lisp_Object Qsubrp, Qmany, Qunevalled; |
39bcc759 | 96 | |
7a283f36 | 97 | static Lisp_Object swap_in_symval_forwarding P_ ((Lisp_Object, Lisp_Object)); |
d02eeab3 | 98 | |
9d113d9d | 99 | Lisp_Object Vmost_positive_fixnum, Vmost_negative_fixnum; |
e6190b11 | 100 | |
13d95cc0 GM |
101 | |
102 | void | |
103 | circular_list_error (list) | |
104 | Lisp_Object list; | |
105 | { | |
106 | Fsignal (Qcircular_list, list); | |
107 | } | |
108 | ||
109 | ||
7921925c JB |
110 | Lisp_Object |
111 | wrong_type_argument (predicate, value) | |
112 | register Lisp_Object predicate, value; | |
113 | { | |
114 | register Lisp_Object tem; | |
115 | do | |
116 | { | |
e1351ff7 RS |
117 | /* If VALUE is not even a valid Lisp object, abort here |
118 | where we can get a backtrace showing where it came from. */ | |
04be3993 | 119 | if ((unsigned int) XGCTYPE (value) >= Lisp_Type_Limit) |
e1351ff7 RS |
120 | abort (); |
121 | ||
7921925c JB |
122 | value = Fsignal (Qwrong_type_argument, Fcons (predicate, Fcons (value, Qnil))); |
123 | tem = call1 (predicate, value); | |
124 | } | |
a33ef3ab | 125 | while (NILP (tem)); |
7921925c JB |
126 | return value; |
127 | } | |
128 | ||
dfcf069d | 129 | void |
7921925c JB |
130 | pure_write_error () |
131 | { | |
132 | error ("Attempt to modify read-only object"); | |
133 | } | |
134 | ||
135 | void | |
136 | args_out_of_range (a1, a2) | |
137 | Lisp_Object a1, a2; | |
138 | { | |
139 | while (1) | |
140 | Fsignal (Qargs_out_of_range, Fcons (a1, Fcons (a2, Qnil))); | |
141 | } | |
142 | ||
143 | void | |
144 | args_out_of_range_3 (a1, a2, a3) | |
145 | Lisp_Object a1, a2, a3; | |
146 | { | |
147 | while (1) | |
148 | Fsignal (Qargs_out_of_range, Fcons (a1, Fcons (a2, Fcons (a3, Qnil)))); | |
149 | } | |
150 | ||
7921925c JB |
151 | /* On some machines, XINT needs a temporary location. |
152 | Here it is, in case it is needed. */ | |
153 | ||
154 | int sign_extend_temp; | |
155 | ||
156 | /* On a few machines, XINT can only be done by calling this. */ | |
157 | ||
158 | int | |
159 | sign_extend_lisp_int (num) | |
a0ed95ea | 160 | EMACS_INT num; |
7921925c | 161 | { |
a0ed95ea RS |
162 | if (num & (((EMACS_INT) 1) << (VALBITS - 1))) |
163 | return num | (((EMACS_INT) (-1)) << VALBITS); | |
7921925c | 164 | else |
a0ed95ea | 165 | return num & ((((EMACS_INT) 1) << VALBITS) - 1); |
7921925c JB |
166 | } |
167 | \f | |
168 | /* Data type predicates */ | |
169 | ||
170 | DEFUN ("eq", Feq, Seq, 2, 2, 0, | |
8c1a1077 PJ |
171 | doc: /* Return t if the two args are the same Lisp object. */) |
172 | (obj1, obj2) | |
7921925c JB |
173 | Lisp_Object obj1, obj2; |
174 | { | |
175 | if (EQ (obj1, obj2)) | |
176 | return Qt; | |
177 | return Qnil; | |
178 | } | |
179 | ||
8c1a1077 PJ |
180 | DEFUN ("null", Fnull, Snull, 1, 1, 0, |
181 | doc: /* Return t if OBJECT is nil. */) | |
182 | (object) | |
39bcc759 | 183 | Lisp_Object object; |
7921925c | 184 | { |
39bcc759 | 185 | if (NILP (object)) |
7921925c JB |
186 | return Qt; |
187 | return Qnil; | |
188 | } | |
189 | ||
39bcc759 | 190 | DEFUN ("type-of", Ftype_of, Stype_of, 1, 1, 0, |
8c1a1077 PJ |
191 | doc: /* Return a symbol representing the type of OBJECT. |
192 | The symbol returned names the object's basic type; | |
193 | for example, (type-of 1) returns `integer'. */) | |
194 | (object) | |
39bcc759 RS |
195 | Lisp_Object object; |
196 | { | |
197 | switch (XGCTYPE (object)) | |
198 | { | |
199 | case Lisp_Int: | |
200 | return Qinteger; | |
201 | ||
202 | case Lisp_Symbol: | |
203 | return Qsymbol; | |
204 | ||
205 | case Lisp_String: | |
206 | return Qstring; | |
207 | ||
208 | case Lisp_Cons: | |
209 | return Qcons; | |
210 | ||
211 | case Lisp_Misc: | |
324a6eef | 212 | switch (XMISCTYPE (object)) |
39bcc759 RS |
213 | { |
214 | case Lisp_Misc_Marker: | |
215 | return Qmarker; | |
216 | case Lisp_Misc_Overlay: | |
217 | return Qoverlay; | |
218 | case Lisp_Misc_Float: | |
219 | return Qfloat; | |
220 | } | |
221 | abort (); | |
222 | ||
223 | case Lisp_Vectorlike: | |
224 | if (GC_WINDOW_CONFIGURATIONP (object)) | |
225 | return Qwindow_configuration; | |
226 | if (GC_PROCESSP (object)) | |
227 | return Qprocess; | |
228 | if (GC_WINDOWP (object)) | |
229 | return Qwindow; | |
230 | if (GC_SUBRP (object)) | |
231 | return Qsubr; | |
232 | if (GC_COMPILEDP (object)) | |
233 | return Qcompiled_function; | |
234 | if (GC_BUFFERP (object)) | |
235 | return Qbuffer; | |
fc67d5be KH |
236 | if (GC_CHAR_TABLE_P (object)) |
237 | return Qchar_table; | |
238 | if (GC_BOOL_VECTOR_P (object)) | |
239 | return Qbool_vector; | |
39bcc759 RS |
240 | if (GC_FRAMEP (object)) |
241 | return Qframe; | |
81dc5de5 GM |
242 | if (GC_HASH_TABLE_P (object)) |
243 | return Qhash_table; | |
39bcc759 RS |
244 | return Qvector; |
245 | ||
39bcc759 RS |
246 | case Lisp_Float: |
247 | return Qfloat; | |
39bcc759 RS |
248 | |
249 | default: | |
250 | abort (); | |
251 | } | |
252 | } | |
253 | ||
8c1a1077 PJ |
254 | DEFUN ("consp", Fconsp, Sconsp, 1, 1, 0, |
255 | doc: /* Return t if OBJECT is a cons cell. */) | |
256 | (object) | |
39bcc759 | 257 | Lisp_Object object; |
7921925c | 258 | { |
39bcc759 | 259 | if (CONSP (object)) |
7921925c JB |
260 | return Qt; |
261 | return Qnil; | |
262 | } | |
263 | ||
25638b07 | 264 | DEFUN ("atom", Fatom, Satom, 1, 1, 0, |
8c1a1077 PJ |
265 | doc: /* Return t if OBJECT is not a cons cell. This includes nil. */) |
266 | (object) | |
39bcc759 | 267 | Lisp_Object object; |
7921925c | 268 | { |
39bcc759 | 269 | if (CONSP (object)) |
7921925c JB |
270 | return Qnil; |
271 | return Qt; | |
272 | } | |
273 | ||
25638b07 | 274 | DEFUN ("listp", Flistp, Slistp, 1, 1, 0, |
8c1a1077 PJ |
275 | doc: /* Return t if OBJECT is a list. This includes nil. */) |
276 | (object) | |
39bcc759 | 277 | Lisp_Object object; |
7921925c | 278 | { |
39bcc759 | 279 | if (CONSP (object) || NILP (object)) |
7921925c JB |
280 | return Qt; |
281 | return Qnil; | |
282 | } | |
283 | ||
25638b07 | 284 | DEFUN ("nlistp", Fnlistp, Snlistp, 1, 1, 0, |
8c1a1077 PJ |
285 | doc: /* Return t if OBJECT is not a list. Lists include nil. */) |
286 | (object) | |
39bcc759 | 287 | Lisp_Object object; |
7921925c | 288 | { |
39bcc759 | 289 | if (CONSP (object) || NILP (object)) |
7921925c JB |
290 | return Qnil; |
291 | return Qt; | |
292 | } | |
293 | \f | |
25638b07 | 294 | DEFUN ("symbolp", Fsymbolp, Ssymbolp, 1, 1, 0, |
8c1a1077 PJ |
295 | doc: /* Return t if OBJECT is a symbol. */) |
296 | (object) | |
39bcc759 | 297 | Lisp_Object object; |
7921925c | 298 | { |
39bcc759 | 299 | if (SYMBOLP (object)) |
7921925c JB |
300 | return Qt; |
301 | return Qnil; | |
302 | } | |
303 | ||
cda9b832 DL |
304 | /* Define this in C to avoid unnecessarily consing up the symbol |
305 | name. */ | |
306 | DEFUN ("keywordp", Fkeywordp, Skeywordp, 1, 1, 0, | |
8c1a1077 PJ |
307 | doc: /* Return t if OBJECT is a keyword. |
308 | This means that it is a symbol with a print name beginning with `:' | |
309 | interned in the initial obarray. */) | |
310 | (object) | |
cda9b832 DL |
311 | Lisp_Object object; |
312 | { | |
313 | if (SYMBOLP (object) | |
d5db4077 | 314 | && SREF (SYMBOL_NAME (object), 0) == ':' |
f35d5bad | 315 | && SYMBOL_INTERNED_IN_INITIAL_OBARRAY_P (object)) |
cda9b832 DL |
316 | return Qt; |
317 | return Qnil; | |
318 | } | |
319 | ||
25638b07 | 320 | DEFUN ("vectorp", Fvectorp, Svectorp, 1, 1, 0, |
8c1a1077 PJ |
321 | doc: /* Return t if OBJECT is a vector. */) |
322 | (object) | |
39bcc759 | 323 | Lisp_Object object; |
7921925c | 324 | { |
39bcc759 | 325 | if (VECTORP (object)) |
7921925c JB |
326 | return Qt; |
327 | return Qnil; | |
328 | } | |
329 | ||
25638b07 | 330 | DEFUN ("stringp", Fstringp, Sstringp, 1, 1, 0, |
8c1a1077 PJ |
331 | doc: /* Return t if OBJECT is a string. */) |
332 | (object) | |
39bcc759 | 333 | Lisp_Object object; |
7921925c | 334 | { |
39bcc759 | 335 | if (STRINGP (object)) |
7921925c JB |
336 | return Qt; |
337 | return Qnil; | |
338 | } | |
339 | ||
25638b07 | 340 | DEFUN ("multibyte-string-p", Fmultibyte_string_p, Smultibyte_string_p, |
8c1a1077 PJ |
341 | 1, 1, 0, |
342 | doc: /* Return t if OBJECT is a multibyte string. */) | |
343 | (object) | |
25638b07 RS |
344 | Lisp_Object object; |
345 | { | |
346 | if (STRINGP (object) && STRING_MULTIBYTE (object)) | |
347 | return Qt; | |
348 | return Qnil; | |
349 | } | |
350 | ||
351 | DEFUN ("char-table-p", Fchar_table_p, Schar_table_p, 1, 1, 0, | |
8c1a1077 PJ |
352 | doc: /* Return t if OBJECT is a char-table. */) |
353 | (object) | |
4d276982 RS |
354 | Lisp_Object object; |
355 | { | |
356 | if (CHAR_TABLE_P (object)) | |
357 | return Qt; | |
358 | return Qnil; | |
359 | } | |
360 | ||
7f0edce7 RS |
361 | DEFUN ("vector-or-char-table-p", Fvector_or_char_table_p, |
362 | Svector_or_char_table_p, 1, 1, 0, | |
8c1a1077 PJ |
363 | doc: /* Return t if OBJECT is a char-table or vector. */) |
364 | (object) | |
7f0edce7 RS |
365 | Lisp_Object object; |
366 | { | |
367 | if (VECTORP (object) || CHAR_TABLE_P (object)) | |
368 | return Qt; | |
369 | return Qnil; | |
370 | } | |
371 | ||
8c1a1077 PJ |
372 | DEFUN ("bool-vector-p", Fbool_vector_p, Sbool_vector_p, 1, 1, 0, |
373 | doc: /* Return t if OBJECT is a bool-vector. */) | |
374 | (object) | |
4d276982 RS |
375 | Lisp_Object object; |
376 | { | |
377 | if (BOOL_VECTOR_P (object)) | |
378 | return Qt; | |
379 | return Qnil; | |
380 | } | |
381 | ||
8c1a1077 PJ |
382 | DEFUN ("arrayp", Farrayp, Sarrayp, 1, 1, 0, |
383 | doc: /* Return t if OBJECT is an array (string or vector). */) | |
384 | (object) | |
39bcc759 | 385 | Lisp_Object object; |
7921925c | 386 | { |
a9729926 RS |
387 | if (VECTORP (object) || STRINGP (object) |
388 | || CHAR_TABLE_P (object) || BOOL_VECTOR_P (object)) | |
7921925c JB |
389 | return Qt; |
390 | return Qnil; | |
391 | } | |
392 | ||
393 | DEFUN ("sequencep", Fsequencep, Ssequencep, 1, 1, 0, | |
8c1a1077 PJ |
394 | doc: /* Return t if OBJECT is a sequence (list or array). */) |
395 | (object) | |
39bcc759 | 396 | register Lisp_Object object; |
7921925c | 397 | { |
4d276982 RS |
398 | if (CONSP (object) || NILP (object) || VECTORP (object) || STRINGP (object) |
399 | || CHAR_TABLE_P (object) || BOOL_VECTOR_P (object)) | |
7921925c JB |
400 | return Qt; |
401 | return Qnil; | |
402 | } | |
403 | ||
8c1a1077 PJ |
404 | DEFUN ("bufferp", Fbufferp, Sbufferp, 1, 1, 0, |
405 | doc: /* Return t if OBJECT is an editor buffer. */) | |
406 | (object) | |
39bcc759 | 407 | Lisp_Object object; |
7921925c | 408 | { |
39bcc759 | 409 | if (BUFFERP (object)) |
7921925c JB |
410 | return Qt; |
411 | return Qnil; | |
412 | } | |
413 | ||
8c1a1077 PJ |
414 | DEFUN ("markerp", Fmarkerp, Smarkerp, 1, 1, 0, |
415 | doc: /* Return t if OBJECT is a marker (editor pointer). */) | |
416 | (object) | |
39bcc759 | 417 | Lisp_Object object; |
7921925c | 418 | { |
39bcc759 | 419 | if (MARKERP (object)) |
7921925c JB |
420 | return Qt; |
421 | return Qnil; | |
422 | } | |
423 | ||
8c1a1077 PJ |
424 | DEFUN ("subrp", Fsubrp, Ssubrp, 1, 1, 0, |
425 | doc: /* Return t if OBJECT is a built-in function. */) | |
426 | (object) | |
39bcc759 | 427 | Lisp_Object object; |
7921925c | 428 | { |
39bcc759 | 429 | if (SUBRP (object)) |
7921925c JB |
430 | return Qt; |
431 | return Qnil; | |
432 | } | |
433 | ||
dbc4e1c1 | 434 | DEFUN ("byte-code-function-p", Fbyte_code_function_p, Sbyte_code_function_p, |
8c1a1077 PJ |
435 | 1, 1, 0, |
436 | doc: /* Return t if OBJECT is a byte-compiled function object. */) | |
437 | (object) | |
39bcc759 | 438 | Lisp_Object object; |
7921925c | 439 | { |
39bcc759 | 440 | if (COMPILEDP (object)) |
7921925c JB |
441 | return Qt; |
442 | return Qnil; | |
443 | } | |
444 | ||
0321d75c | 445 | DEFUN ("char-or-string-p", Fchar_or_string_p, Schar_or_string_p, 1, 1, 0, |
8c1a1077 PJ |
446 | doc: /* Return t if OBJECT is a character (an integer) or a string. */) |
447 | (object) | |
39bcc759 | 448 | register Lisp_Object object; |
7921925c | 449 | { |
39bcc759 | 450 | if (INTEGERP (object) || STRINGP (object)) |
7921925c JB |
451 | return Qt; |
452 | return Qnil; | |
453 | } | |
454 | \f | |
8c1a1077 PJ |
455 | DEFUN ("integerp", Fintegerp, Sintegerp, 1, 1, 0, |
456 | doc: /* Return t if OBJECT is an integer. */) | |
457 | (object) | |
39bcc759 | 458 | Lisp_Object object; |
7921925c | 459 | { |
39bcc759 | 460 | if (INTEGERP (object)) |
7921925c JB |
461 | return Qt; |
462 | return Qnil; | |
463 | } | |
464 | ||
464f8898 | 465 | DEFUN ("integer-or-marker-p", Finteger_or_marker_p, Sinteger_or_marker_p, 1, 1, 0, |
8c1a1077 PJ |
466 | doc: /* Return t if OBJECT is an integer or a marker (editor pointer). */) |
467 | (object) | |
39bcc759 | 468 | register Lisp_Object object; |
7921925c | 469 | { |
39bcc759 | 470 | if (MARKERP (object) || INTEGERP (object)) |
7921925c JB |
471 | return Qt; |
472 | return Qnil; | |
473 | } | |
474 | ||
0321d75c | 475 | DEFUN ("natnump", Fnatnump, Snatnump, 1, 1, 0, |
8c1a1077 PJ |
476 | doc: /* Return t if OBJECT is a nonnegative integer. */) |
477 | (object) | |
39bcc759 | 478 | Lisp_Object object; |
7921925c | 479 | { |
39bcc759 | 480 | if (NATNUMP (object)) |
7921925c JB |
481 | return Qt; |
482 | return Qnil; | |
483 | } | |
484 | ||
485 | DEFUN ("numberp", Fnumberp, Snumberp, 1, 1, 0, | |
8c1a1077 PJ |
486 | doc: /* Return t if OBJECT is a number (floating point or integer). */) |
487 | (object) | |
39bcc759 | 488 | Lisp_Object object; |
7921925c | 489 | { |
39bcc759 | 490 | if (NUMBERP (object)) |
7921925c | 491 | return Qt; |
dbc4e1c1 JB |
492 | else |
493 | return Qnil; | |
7921925c JB |
494 | } |
495 | ||
496 | DEFUN ("number-or-marker-p", Fnumber_or_marker_p, | |
497 | Snumber_or_marker_p, 1, 1, 0, | |
8c1a1077 PJ |
498 | doc: /* Return t if OBJECT is a number or a marker. */) |
499 | (object) | |
39bcc759 | 500 | Lisp_Object object; |
7921925c | 501 | { |
39bcc759 | 502 | if (NUMBERP (object) || MARKERP (object)) |
7921925c JB |
503 | return Qt; |
504 | return Qnil; | |
505 | } | |
464f8898 | 506 | |
464f8898 | 507 | DEFUN ("floatp", Ffloatp, Sfloatp, 1, 1, 0, |
8c1a1077 PJ |
508 | doc: /* Return t if OBJECT is a floating point number. */) |
509 | (object) | |
39bcc759 | 510 | Lisp_Object object; |
464f8898 | 511 | { |
39bcc759 | 512 | if (FLOATP (object)) |
464f8898 RS |
513 | return Qt; |
514 | return Qnil; | |
515 | } | |
cc94f3b2 | 516 | |
7921925c JB |
517 | \f |
518 | /* Extract and set components of lists */ | |
519 | ||
520 | DEFUN ("car", Fcar, Scar, 1, 1, 0, | |
8c1a1077 PJ |
521 | doc: /* Return the car of LIST. If arg is nil, return nil. |
522 | Error if arg is not nil and not a cons cell. See also `car-safe'. */) | |
523 | (list) | |
7921925c JB |
524 | register Lisp_Object list; |
525 | { | |
526 | while (1) | |
527 | { | |
e9ebc175 | 528 | if (CONSP (list)) |
7539e11f | 529 | return XCAR (list); |
7921925c JB |
530 | else if (EQ (list, Qnil)) |
531 | return Qnil; | |
532 | else | |
533 | list = wrong_type_argument (Qlistp, list); | |
534 | } | |
535 | } | |
536 | ||
537 | DEFUN ("car-safe", Fcar_safe, Scar_safe, 1, 1, 0, | |
8c1a1077 PJ |
538 | doc: /* Return the car of OBJECT if it is a cons cell, or else nil. */) |
539 | (object) | |
7921925c JB |
540 | Lisp_Object object; |
541 | { | |
e9ebc175 | 542 | if (CONSP (object)) |
7539e11f | 543 | return XCAR (object); |
7921925c JB |
544 | else |
545 | return Qnil; | |
546 | } | |
547 | ||
548 | DEFUN ("cdr", Fcdr, Scdr, 1, 1, 0, | |
8c1a1077 PJ |
549 | doc: /* Return the cdr of LIST. If arg is nil, return nil. |
550 | Error if arg is not nil and not a cons cell. See also `cdr-safe'. */) | |
551 | (list) | |
7921925c JB |
552 | register Lisp_Object list; |
553 | { | |
554 | while (1) | |
555 | { | |
e9ebc175 | 556 | if (CONSP (list)) |
7539e11f | 557 | return XCDR (list); |
7921925c JB |
558 | else if (EQ (list, Qnil)) |
559 | return Qnil; | |
560 | else | |
561 | list = wrong_type_argument (Qlistp, list); | |
562 | } | |
563 | } | |
564 | ||
565 | DEFUN ("cdr-safe", Fcdr_safe, Scdr_safe, 1, 1, 0, | |
8c1a1077 PJ |
566 | doc: /* Return the cdr of OBJECT if it is a cons cell, or else nil. */) |
567 | (object) | |
7921925c JB |
568 | Lisp_Object object; |
569 | { | |
e9ebc175 | 570 | if (CONSP (object)) |
7539e11f | 571 | return XCDR (object); |
7921925c JB |
572 | else |
573 | return Qnil; | |
574 | } | |
575 | ||
576 | DEFUN ("setcar", Fsetcar, Ssetcar, 2, 2, 0, | |
8c1a1077 PJ |
577 | doc: /* Set the car of CELL to be NEWCAR. Returns NEWCAR. */) |
578 | (cell, newcar) | |
7921925c JB |
579 | register Lisp_Object cell, newcar; |
580 | { | |
e9ebc175 | 581 | if (!CONSP (cell)) |
7921925c JB |
582 | cell = wrong_type_argument (Qconsp, cell); |
583 | ||
584 | CHECK_IMPURE (cell); | |
f3fbd155 | 585 | XSETCAR (cell, newcar); |
7921925c JB |
586 | return newcar; |
587 | } | |
588 | ||
589 | DEFUN ("setcdr", Fsetcdr, Ssetcdr, 2, 2, 0, | |
8c1a1077 PJ |
590 | doc: /* Set the cdr of CELL to be NEWCDR. Returns NEWCDR. */) |
591 | (cell, newcdr) | |
7921925c JB |
592 | register Lisp_Object cell, newcdr; |
593 | { | |
e9ebc175 | 594 | if (!CONSP (cell)) |
7921925c JB |
595 | cell = wrong_type_argument (Qconsp, cell); |
596 | ||
597 | CHECK_IMPURE (cell); | |
f3fbd155 | 598 | XSETCDR (cell, newcdr); |
7921925c JB |
599 | return newcdr; |
600 | } | |
601 | \f | |
602 | /* Extract and set components of symbols */ | |
603 | ||
8c1a1077 PJ |
604 | DEFUN ("boundp", Fboundp, Sboundp, 1, 1, 0, |
605 | doc: /* Return t if SYMBOL's value is not void. */) | |
606 | (symbol) | |
d9c2a0f2 | 607 | register Lisp_Object symbol; |
7921925c JB |
608 | { |
609 | Lisp_Object valcontents; | |
b7826503 | 610 | CHECK_SYMBOL (symbol); |
7921925c | 611 | |
f35d5bad | 612 | valcontents = SYMBOL_VALUE (symbol); |
7921925c | 613 | |
aabf6bec KH |
614 | if (BUFFER_LOCAL_VALUEP (valcontents) |
615 | || SOME_BUFFER_LOCAL_VALUEP (valcontents)) | |
d9c2a0f2 | 616 | valcontents = swap_in_symval_forwarding (symbol, valcontents); |
7921925c | 617 | |
1bfcade3 | 618 | return (EQ (valcontents, Qunbound) ? Qnil : Qt); |
7921925c JB |
619 | } |
620 | ||
8c1a1077 PJ |
621 | DEFUN ("fboundp", Ffboundp, Sfboundp, 1, 1, 0, |
622 | doc: /* Return t if SYMBOL's function definition is not void. */) | |
623 | (symbol) | |
d9c2a0f2 | 624 | register Lisp_Object symbol; |
7921925c | 625 | { |
b7826503 | 626 | CHECK_SYMBOL (symbol); |
d9c2a0f2 | 627 | return (EQ (XSYMBOL (symbol)->function, Qunbound) ? Qnil : Qt); |
7921925c JB |
628 | } |
629 | ||
8c1a1077 PJ |
630 | DEFUN ("makunbound", Fmakunbound, Smakunbound, 1, 1, 0, |
631 | doc: /* Make SYMBOL's value be void. */) | |
632 | (symbol) | |
d9c2a0f2 | 633 | register Lisp_Object symbol; |
7921925c | 634 | { |
b7826503 | 635 | CHECK_SYMBOL (symbol); |
f35d5bad | 636 | if (XSYMBOL (symbol)->constant) |
d9c2a0f2 EN |
637 | return Fsignal (Qsetting_constant, Fcons (symbol, Qnil)); |
638 | Fset (symbol, Qunbound); | |
639 | return symbol; | |
7921925c JB |
640 | } |
641 | ||
8c1a1077 PJ |
642 | DEFUN ("fmakunbound", Ffmakunbound, Sfmakunbound, 1, 1, 0, |
643 | doc: /* Make SYMBOL's function definition be void. */) | |
644 | (symbol) | |
d9c2a0f2 | 645 | register Lisp_Object symbol; |
7921925c | 646 | { |
b7826503 | 647 | CHECK_SYMBOL (symbol); |
d9c2a0f2 EN |
648 | if (NILP (symbol) || EQ (symbol, Qt)) |
649 | return Fsignal (Qsetting_constant, Fcons (symbol, Qnil)); | |
650 | XSYMBOL (symbol)->function = Qunbound; | |
651 | return symbol; | |
7921925c JB |
652 | } |
653 | ||
654 | DEFUN ("symbol-function", Fsymbol_function, Ssymbol_function, 1, 1, 0, | |
8c1a1077 PJ |
655 | doc: /* Return SYMBOL's function definition. Error if that is void. */) |
656 | (symbol) | |
ffd56f97 | 657 | register Lisp_Object symbol; |
7921925c | 658 | { |
b7826503 | 659 | CHECK_SYMBOL (symbol); |
ffd56f97 JB |
660 | if (EQ (XSYMBOL (symbol)->function, Qunbound)) |
661 | return Fsignal (Qvoid_function, Fcons (symbol, Qnil)); | |
662 | return XSYMBOL (symbol)->function; | |
7921925c JB |
663 | } |
664 | ||
8c1a1077 PJ |
665 | DEFUN ("symbol-plist", Fsymbol_plist, Ssymbol_plist, 1, 1, 0, |
666 | doc: /* Return SYMBOL's property list. */) | |
667 | (symbol) | |
d9c2a0f2 | 668 | register Lisp_Object symbol; |
7921925c | 669 | { |
b7826503 | 670 | CHECK_SYMBOL (symbol); |
d9c2a0f2 | 671 | return XSYMBOL (symbol)->plist; |
7921925c JB |
672 | } |
673 | ||
8c1a1077 PJ |
674 | DEFUN ("symbol-name", Fsymbol_name, Ssymbol_name, 1, 1, 0, |
675 | doc: /* Return SYMBOL's name, a string. */) | |
676 | (symbol) | |
d9c2a0f2 | 677 | register Lisp_Object symbol; |
7921925c JB |
678 | { |
679 | register Lisp_Object name; | |
680 | ||
b7826503 | 681 | CHECK_SYMBOL (symbol); |
84023177 | 682 | name = SYMBOL_NAME (symbol); |
7921925c JB |
683 | return name; |
684 | } | |
685 | ||
686 | DEFUN ("fset", Ffset, Sfset, 2, 2, 0, | |
8c1a1077 PJ |
687 | doc: /* Set SYMBOL's function definition to DEFINITION, and return DEFINITION. */) |
688 | (symbol, definition) | |
8c0b5540 | 689 | register Lisp_Object symbol, definition; |
d9c2a0f2 | 690 | { |
b7826503 | 691 | CHECK_SYMBOL (symbol); |
d9c2a0f2 EN |
692 | if (NILP (symbol) || EQ (symbol, Qt)) |
693 | return Fsignal (Qsetting_constant, Fcons (symbol, Qnil)); | |
694 | if (!NILP (Vautoload_queue) && !EQ (XSYMBOL (symbol)->function, Qunbound)) | |
695 | Vautoload_queue = Fcons (Fcons (symbol, XSYMBOL (symbol)->function), | |
7921925c | 696 | Vautoload_queue); |
8c0b5540 | 697 | XSYMBOL (symbol)->function = definition; |
f845f2c9 | 698 | /* Handle automatic advice activation */ |
d9c2a0f2 | 699 | if (CONSP (XSYMBOL (symbol)->plist) && !NILP (Fget (symbol, Qad_advice_info))) |
f845f2c9 | 700 | { |
c1307a23 | 701 | call2 (Qad_activate_internal, symbol, Qnil); |
8c0b5540 | 702 | definition = XSYMBOL (symbol)->function; |
f845f2c9 | 703 | } |
8c0b5540 | 704 | return definition; |
7921925c JB |
705 | } |
706 | ||
d2fde41d SM |
707 | extern Lisp_Object Qfunction_documentation; |
708 | ||
709 | DEFUN ("defalias", Fdefalias, Sdefalias, 2, 3, 0, | |
8c1a1077 | 710 | doc: /* Set SYMBOL's function definition to DEFINITION, and return DEFINITION. |
96143227 RS |
711 | Associates the function with the current load file, if any. |
712 | The optional third argument DOCSTRING specifies the documentation string | |
713 | for SYMBOL; if it is omitted or nil, SYMBOL uses the documentation string | |
714 | determined by DEFINITION. */) | |
d2fde41d SM |
715 | (symbol, definition, docstring) |
716 | register Lisp_Object symbol, definition, docstring; | |
fc08c367 | 717 | { |
32f532b7 | 718 | definition = Ffset (symbol, definition); |
d9c2a0f2 | 719 | LOADHIST_ATTACH (symbol); |
d2fde41d SM |
720 | if (!NILP (docstring)) |
721 | Fput (symbol, Qfunction_documentation, docstring); | |
73e0d965 | 722 | return definition; |
fc08c367 RS |
723 | } |
724 | ||
7921925c | 725 | DEFUN ("setplist", Fsetplist, Ssetplist, 2, 2, 0, |
8c1a1077 PJ |
726 | doc: /* Set SYMBOL's property list to NEWVAL, and return NEWVAL. */) |
727 | (symbol, newplist) | |
d9c2a0f2 | 728 | register Lisp_Object symbol, newplist; |
7921925c | 729 | { |
b7826503 | 730 | CHECK_SYMBOL (symbol); |
d9c2a0f2 | 731 | XSYMBOL (symbol)->plist = newplist; |
7921925c JB |
732 | return newplist; |
733 | } | |
ffd56f97 | 734 | |
6f0e897f | 735 | DEFUN ("subr-arity", Fsubr_arity, Ssubr_arity, 1, 1, 0, |
8c1a1077 PJ |
736 | doc: /* Return minimum and maximum number of args allowed for SUBR. |
737 | SUBR must be a built-in function. | |
738 | The returned value is a pair (MIN . MAX). MIN is the minimum number | |
739 | of args. MAX is the maximum number or the symbol `many', for a | |
740 | function with `&rest' args, or `unevalled' for a special form. */) | |
741 | (subr) | |
6f0e897f DL |
742 | Lisp_Object subr; |
743 | { | |
744 | short minargs, maxargs; | |
745 | if (!SUBRP (subr)) | |
746 | wrong_type_argument (Qsubrp, subr); | |
747 | minargs = XSUBR (subr)->min_args; | |
748 | maxargs = XSUBR (subr)->max_args; | |
749 | if (maxargs == MANY) | |
750 | return Fcons (make_number (minargs), Qmany); | |
751 | else if (maxargs == UNEVALLED) | |
752 | return Fcons (make_number (minargs), Qunevalled); | |
753 | else | |
754 | return Fcons (make_number (minargs), make_number (maxargs)); | |
755 | } | |
756 | ||
cc515226 | 757 | DEFUN ("subr-interactive-form", Fsubr_interactive_form, Ssubr_interactive_form, 1, 1, 0, |
8c1a1077 PJ |
758 | doc: /* Return the interactive form of SUBR or nil if none. |
759 | SUBR must be a built-in function. Value, if non-nil, is a list | |
760 | \(interactive SPEC). */) | |
761 | (subr) | |
cc515226 GM |
762 | Lisp_Object subr; |
763 | { | |
764 | if (!SUBRP (subr)) | |
765 | wrong_type_argument (Qsubrp, subr); | |
766 | if (XSUBR (subr)->prompt) | |
767 | return list2 (Qinteractive, build_string (XSUBR (subr)->prompt)); | |
768 | return Qnil; | |
769 | } | |
770 | ||
7921925c | 771 | \f |
f35d5bad GM |
772 | /*********************************************************************** |
773 | Getting and Setting Values of Symbols | |
774 | ***********************************************************************/ | |
775 | ||
776 | /* Return the symbol holding SYMBOL's value. Signal | |
777 | `cyclic-variable-indirection' if SYMBOL's chain of variable | |
778 | indirections contains a loop. */ | |
779 | ||
780 | Lisp_Object | |
781 | indirect_variable (symbol) | |
782 | Lisp_Object symbol; | |
783 | { | |
784 | Lisp_Object tortoise, hare; | |
785 | ||
786 | hare = tortoise = symbol; | |
787 | ||
788 | while (XSYMBOL (hare)->indirect_variable) | |
789 | { | |
790 | hare = XSYMBOL (hare)->value; | |
791 | if (!XSYMBOL (hare)->indirect_variable) | |
792 | break; | |
793 | ||
794 | hare = XSYMBOL (hare)->value; | |
795 | tortoise = XSYMBOL (tortoise)->value; | |
796 | ||
797 | if (EQ (hare, tortoise)) | |
798 | Fsignal (Qcyclic_variable_indirection, Fcons (symbol, Qnil)); | |
799 | } | |
800 | ||
801 | return hare; | |
802 | } | |
803 | ||
804 | ||
805 | DEFUN ("indirect-variable", Findirect_variable, Sindirect_variable, 1, 1, 0, | |
8c1a1077 PJ |
806 | doc: /* Return the variable at the end of OBJECT's variable chain. |
807 | If OBJECT is a symbol, follow all variable indirections and return the final | |
808 | variable. If OBJECT is not a symbol, just return it. | |
809 | Signal a cyclic-variable-indirection error if there is a loop in the | |
810 | variable chain of symbols. */) | |
811 | (object) | |
f35d5bad GM |
812 | Lisp_Object object; |
813 | { | |
814 | if (SYMBOLP (object)) | |
815 | object = indirect_variable (object); | |
816 | return object; | |
817 | } | |
818 | ||
7921925c JB |
819 | |
820 | /* Given the raw contents of a symbol value cell, | |
821 | return the Lisp value of the symbol. | |
822 | This does not handle buffer-local variables; use | |
823 | swap_in_symval_forwarding for that. */ | |
824 | ||
825 | Lisp_Object | |
826 | do_symval_forwarding (valcontents) | |
827 | register Lisp_Object valcontents; | |
828 | { | |
829 | register Lisp_Object val; | |
46b2ac21 KH |
830 | int offset; |
831 | if (MISCP (valcontents)) | |
324a6eef | 832 | switch (XMISCTYPE (valcontents)) |
46b2ac21 KH |
833 | { |
834 | case Lisp_Misc_Intfwd: | |
835 | XSETINT (val, *XINTFWD (valcontents)->intvar); | |
836 | return val; | |
7921925c | 837 | |
46b2ac21 KH |
838 | case Lisp_Misc_Boolfwd: |
839 | return (*XBOOLFWD (valcontents)->boolvar ? Qt : Qnil); | |
7921925c | 840 | |
46b2ac21 KH |
841 | case Lisp_Misc_Objfwd: |
842 | return *XOBJFWD (valcontents)->objvar; | |
7921925c | 843 | |
46b2ac21 KH |
844 | case Lisp_Misc_Buffer_Objfwd: |
845 | offset = XBUFFER_OBJFWD (valcontents)->offset; | |
f6cd0527 | 846 | return PER_BUFFER_VALUE (current_buffer, offset); |
7403b5c8 | 847 | |
e5f8af9e KH |
848 | case Lisp_Misc_Kboard_Objfwd: |
849 | offset = XKBOARD_OBJFWD (valcontents)->offset; | |
850 | return *(Lisp_Object *)(offset + (char *)current_kboard); | |
46b2ac21 | 851 | } |
7921925c JB |
852 | return valcontents; |
853 | } | |
854 | ||
d9c2a0f2 EN |
855 | /* Store NEWVAL into SYMBOL, where VALCONTENTS is found in the value cell |
856 | of SYMBOL. If SYMBOL is buffer-local, VALCONTENTS should be the | |
7921925c | 857 | buffer-independent contents of the value cell: forwarded just one |
7a283f36 GM |
858 | step past the buffer-localness. |
859 | ||
860 | BUF non-zero means set the value in buffer BUF instead of the | |
861 | current buffer. This only plays a role for per-buffer variables. */ | |
7921925c JB |
862 | |
863 | void | |
7a283f36 | 864 | store_symval_forwarding (symbol, valcontents, newval, buf) |
d9c2a0f2 | 865 | Lisp_Object symbol; |
7921925c | 866 | register Lisp_Object valcontents, newval; |
7a283f36 | 867 | struct buffer *buf; |
7921925c | 868 | { |
0220c518 | 869 | switch (SWITCH_ENUM_CAST (XTYPE (valcontents))) |
7921925c | 870 | { |
46b2ac21 | 871 | case Lisp_Misc: |
324a6eef | 872 | switch (XMISCTYPE (valcontents)) |
46b2ac21 KH |
873 | { |
874 | case Lisp_Misc_Intfwd: | |
b7826503 | 875 | CHECK_NUMBER (newval); |
46b2ac21 | 876 | *XINTFWD (valcontents)->intvar = XINT (newval); |
e6c82a8d RS |
877 | if (*XINTFWD (valcontents)->intvar != XINT (newval)) |
878 | error ("Value out of range for variable `%s'", | |
d5db4077 | 879 | SDATA (SYMBOL_NAME (symbol))); |
46b2ac21 KH |
880 | break; |
881 | ||
882 | case Lisp_Misc_Boolfwd: | |
883 | *XBOOLFWD (valcontents)->boolvar = NILP (newval) ? 0 : 1; | |
884 | break; | |
885 | ||
886 | case Lisp_Misc_Objfwd: | |
887 | *XOBJFWD (valcontents)->objvar = newval; | |
888 | break; | |
889 | ||
890 | case Lisp_Misc_Buffer_Objfwd: | |
891 | { | |
892 | int offset = XBUFFER_OBJFWD (valcontents)->offset; | |
893 | Lisp_Object type; | |
894 | ||
f6cd0527 | 895 | type = PER_BUFFER_TYPE (offset); |
984ef137 | 896 | if (XINT (type) == -1) |
d5db4077 | 897 | error ("Variable %s is read-only", SDATA (SYMBOL_NAME (symbol))); |
984ef137 | 898 | |
46b2ac21 KH |
899 | if (! NILP (type) && ! NILP (newval) |
900 | && XTYPE (newval) != XINT (type)) | |
901 | buffer_slot_type_mismatch (offset); | |
902 | ||
7a283f36 GM |
903 | if (buf == NULL) |
904 | buf = current_buffer; | |
905 | PER_BUFFER_VALUE (buf, offset) = newval; | |
46b2ac21 | 906 | } |
7403b5c8 KH |
907 | break; |
908 | ||
e5f8af9e | 909 | case Lisp_Misc_Kboard_Objfwd: |
7a283f36 GM |
910 | { |
911 | char *base = (char *) current_kboard; | |
912 | char *p = base + XKBOARD_OBJFWD (valcontents)->offset; | |
913 | *(Lisp_Object *) p = newval; | |
914 | } | |
7403b5c8 KH |
915 | break; |
916 | ||
46b2ac21 KH |
917 | default: |
918 | goto def; | |
919 | } | |
7921925c JB |
920 | break; |
921 | ||
7921925c | 922 | default: |
46b2ac21 | 923 | def: |
f35d5bad | 924 | valcontents = SYMBOL_VALUE (symbol); |
e9ebc175 KH |
925 | if (BUFFER_LOCAL_VALUEP (valcontents) |
926 | || SOME_BUFFER_LOCAL_VALUEP (valcontents)) | |
b0c2d1c6 | 927 | XBUFFER_LOCAL_VALUE (valcontents)->realvalue = newval; |
7921925c | 928 | else |
f35d5bad | 929 | SET_SYMBOL_VALUE (symbol, newval); |
7921925c JB |
930 | } |
931 | } | |
932 | ||
b0d53add GM |
933 | /* Set up SYMBOL to refer to its global binding. |
934 | This makes it safe to alter the status of other bindings. */ | |
935 | ||
936 | void | |
937 | swap_in_global_binding (symbol) | |
938 | Lisp_Object symbol; | |
939 | { | |
940 | Lisp_Object valcontents, cdr; | |
941 | ||
f35d5bad | 942 | valcontents = SYMBOL_VALUE (symbol); |
b0d53add GM |
943 | if (!BUFFER_LOCAL_VALUEP (valcontents) |
944 | && !SOME_BUFFER_LOCAL_VALUEP (valcontents)) | |
945 | abort (); | |
946 | cdr = XBUFFER_LOCAL_VALUE (valcontents)->cdr; | |
947 | ||
948 | /* Unload the previously loaded binding. */ | |
949 | Fsetcdr (XCAR (cdr), | |
950 | do_symval_forwarding (XBUFFER_LOCAL_VALUE (valcontents)->realvalue)); | |
951 | ||
952 | /* Select the global binding in the symbol. */ | |
f3fbd155 | 953 | XSETCAR (cdr, cdr); |
7a283f36 | 954 | store_symval_forwarding (symbol, valcontents, XCDR (cdr), NULL); |
b0d53add GM |
955 | |
956 | /* Indicate that the global binding is set up now. */ | |
957 | XBUFFER_LOCAL_VALUE (valcontents)->frame = Qnil; | |
958 | XBUFFER_LOCAL_VALUE (valcontents)->buffer = Qnil; | |
959 | XBUFFER_LOCAL_VALUE (valcontents)->found_for_frame = 0; | |
960 | XBUFFER_LOCAL_VALUE (valcontents)->found_for_buffer = 0; | |
961 | } | |
962 | ||
2829d05f | 963 | /* Set up the buffer-local symbol SYMBOL for validity in the current buffer. |
42e975f0 RS |
964 | VALCONTENTS is the contents of its value cell, |
965 | which points to a struct Lisp_Buffer_Local_Value. | |
966 | ||
967 | Return the value forwarded one step past the buffer-local stage. | |
968 | This could be another forwarding pointer. */ | |
7921925c JB |
969 | |
970 | static Lisp_Object | |
d9c2a0f2 EN |
971 | swap_in_symval_forwarding (symbol, valcontents) |
972 | Lisp_Object symbol, valcontents; | |
7921925c | 973 | { |
7921925c | 974 | register Lisp_Object tem1; |
f35d5bad | 975 | |
b0c2d1c6 | 976 | tem1 = XBUFFER_LOCAL_VALUE (valcontents)->buffer; |
7921925c | 977 | |
42e975f0 RS |
978 | if (NILP (tem1) |
979 | || current_buffer != XBUFFER (tem1) | |
980 | || (XBUFFER_LOCAL_VALUE (valcontents)->check_frame | |
981 | && ! EQ (selected_frame, XBUFFER_LOCAL_VALUE (valcontents)->frame))) | |
7921925c | 982 | { |
f35d5bad GM |
983 | if (XSYMBOL (symbol)->indirect_variable) |
984 | symbol = indirect_variable (symbol); | |
985 | ||
42e975f0 | 986 | /* Unload the previously loaded binding. */ |
7539e11f | 987 | tem1 = XCAR (XBUFFER_LOCAL_VALUE (valcontents)->cdr); |
8d4afcac | 988 | Fsetcdr (tem1, |
b0c2d1c6 | 989 | do_symval_forwarding (XBUFFER_LOCAL_VALUE (valcontents)->realvalue)); |
42e975f0 | 990 | /* Choose the new binding. */ |
d9c2a0f2 | 991 | tem1 = assq_no_quit (symbol, current_buffer->local_var_alist); |
b0c2d1c6 RS |
992 | XBUFFER_LOCAL_VALUE (valcontents)->found_for_frame = 0; |
993 | XBUFFER_LOCAL_VALUE (valcontents)->found_for_buffer = 0; | |
a33ef3ab | 994 | if (NILP (tem1)) |
b0c2d1c6 RS |
995 | { |
996 | if (XBUFFER_LOCAL_VALUE (valcontents)->check_frame) | |
1cc04aed | 997 | tem1 = assq_no_quit (symbol, XFRAME (selected_frame)->param_alist); |
b0c2d1c6 RS |
998 | if (! NILP (tem1)) |
999 | XBUFFER_LOCAL_VALUE (valcontents)->found_for_frame = 1; | |
1000 | else | |
1001 | tem1 = XBUFFER_LOCAL_VALUE (valcontents)->cdr; | |
1002 | } | |
1003 | else | |
1004 | XBUFFER_LOCAL_VALUE (valcontents)->found_for_buffer = 1; | |
1005 | ||
42e975f0 | 1006 | /* Load the new binding. */ |
f3fbd155 | 1007 | XSETCAR (XBUFFER_LOCAL_VALUE (valcontents)->cdr, tem1); |
b0c2d1c6 | 1008 | XSETBUFFER (XBUFFER_LOCAL_VALUE (valcontents)->buffer, current_buffer); |
1cc04aed | 1009 | XBUFFER_LOCAL_VALUE (valcontents)->frame = selected_frame; |
b0c2d1c6 RS |
1010 | store_symval_forwarding (symbol, |
1011 | XBUFFER_LOCAL_VALUE (valcontents)->realvalue, | |
7a283f36 | 1012 | Fcdr (tem1), NULL); |
7921925c | 1013 | } |
b0c2d1c6 | 1014 | return XBUFFER_LOCAL_VALUE (valcontents)->realvalue; |
7921925c JB |
1015 | } |
1016 | \f | |
14e76af9 JB |
1017 | /* Find the value of a symbol, returning Qunbound if it's not bound. |
1018 | This is helpful for code which just wants to get a variable's value | |
8e6208c5 | 1019 | if it has one, without signaling an error. |
14e76af9 JB |
1020 | Note that it must not be possible to quit |
1021 | within this function. Great care is required for this. */ | |
7921925c | 1022 | |
14e76af9 | 1023 | Lisp_Object |
d9c2a0f2 EN |
1024 | find_symbol_value (symbol) |
1025 | Lisp_Object symbol; | |
7921925c | 1026 | { |
dd8daec5 | 1027 | register Lisp_Object valcontents; |
7921925c | 1028 | register Lisp_Object val; |
f35d5bad | 1029 | |
b7826503 | 1030 | CHECK_SYMBOL (symbol); |
f35d5bad | 1031 | valcontents = SYMBOL_VALUE (symbol); |
7921925c | 1032 | |
aabf6bec KH |
1033 | if (BUFFER_LOCAL_VALUEP (valcontents) |
1034 | || SOME_BUFFER_LOCAL_VALUEP (valcontents)) | |
2a359158 | 1035 | valcontents = swap_in_symval_forwarding (symbol, valcontents); |
7921925c | 1036 | |
536b772a KH |
1037 | if (MISCP (valcontents)) |
1038 | { | |
324a6eef | 1039 | switch (XMISCTYPE (valcontents)) |
46b2ac21 KH |
1040 | { |
1041 | case Lisp_Misc_Intfwd: | |
1042 | XSETINT (val, *XINTFWD (valcontents)->intvar); | |
1043 | return val; | |
7921925c | 1044 | |
46b2ac21 KH |
1045 | case Lisp_Misc_Boolfwd: |
1046 | return (*XBOOLFWD (valcontents)->boolvar ? Qt : Qnil); | |
7921925c | 1047 | |
46b2ac21 KH |
1048 | case Lisp_Misc_Objfwd: |
1049 | return *XOBJFWD (valcontents)->objvar; | |
7921925c | 1050 | |
46b2ac21 | 1051 | case Lisp_Misc_Buffer_Objfwd: |
f6cd0527 | 1052 | return PER_BUFFER_VALUE (current_buffer, |
999b32fd | 1053 | XBUFFER_OBJFWD (valcontents)->offset); |
7403b5c8 | 1054 | |
e5f8af9e KH |
1055 | case Lisp_Misc_Kboard_Objfwd: |
1056 | return *(Lisp_Object *)(XKBOARD_OBJFWD (valcontents)->offset | |
1057 | + (char *)current_kboard); | |
46b2ac21 | 1058 | } |
7921925c JB |
1059 | } |
1060 | ||
1061 | return valcontents; | |
1062 | } | |
1063 | ||
14e76af9 | 1064 | DEFUN ("symbol-value", Fsymbol_value, Ssymbol_value, 1, 1, 0, |
8c1a1077 PJ |
1065 | doc: /* Return SYMBOL's value. Error if that is void. */) |
1066 | (symbol) | |
d9c2a0f2 | 1067 | Lisp_Object symbol; |
14e76af9 | 1068 | { |
0671d7c0 | 1069 | Lisp_Object val; |
14e76af9 | 1070 | |
d9c2a0f2 | 1071 | val = find_symbol_value (symbol); |
14e76af9 | 1072 | if (EQ (val, Qunbound)) |
d9c2a0f2 | 1073 | return Fsignal (Qvoid_variable, Fcons (symbol, Qnil)); |
14e76af9 JB |
1074 | else |
1075 | return val; | |
1076 | } | |
1077 | ||
7921925c | 1078 | DEFUN ("set", Fset, Sset, 2, 2, 0, |
8c1a1077 PJ |
1079 | doc: /* Set SYMBOL's value to NEWVAL, and return NEWVAL. */) |
1080 | (symbol, newval) | |
d9c2a0f2 | 1081 | register Lisp_Object symbol, newval; |
05ef7169 | 1082 | { |
2829d05f | 1083 | return set_internal (symbol, newval, current_buffer, 0); |
05ef7169 RS |
1084 | } |
1085 | ||
1f35ce36 RS |
1086 | /* Return 1 if SYMBOL currently has a let-binding |
1087 | which was made in the buffer that is now current. */ | |
1088 | ||
1089 | static int | |
1090 | let_shadows_buffer_binding_p (symbol) | |
1091 | Lisp_Object symbol; | |
1092 | { | |
1093 | struct specbinding *p; | |
1094 | ||
1095 | for (p = specpdl_ptr - 1; p >= specpdl; p--) | |
f35d5bad GM |
1096 | if (p->func == NULL |
1097 | && CONSP (p->symbol)) | |
1098 | { | |
1099 | Lisp_Object let_bound_symbol = XCAR (p->symbol); | |
1100 | if ((EQ (symbol, let_bound_symbol) | |
1101 | || (XSYMBOL (let_bound_symbol)->indirect_variable | |
1102 | && EQ (symbol, indirect_variable (let_bound_symbol)))) | |
1103 | && XBUFFER (XCDR (XCDR (p->symbol))) == current_buffer) | |
1104 | break; | |
1105 | } | |
1f35ce36 | 1106 | |
f35d5bad | 1107 | return p >= specpdl; |
1f35ce36 RS |
1108 | } |
1109 | ||
25638b07 | 1110 | /* Store the value NEWVAL into SYMBOL. |
2829d05f RS |
1111 | If buffer-locality is an issue, BUF specifies which buffer to use. |
1112 | (0 stands for the current buffer.) | |
1113 | ||
05ef7169 RS |
1114 | If BINDFLAG is zero, then if this symbol is supposed to become |
1115 | local in every buffer where it is set, then we make it local. | |
1116 | If BINDFLAG is nonzero, we don't do that. */ | |
1117 | ||
1118 | Lisp_Object | |
2829d05f | 1119 | set_internal (symbol, newval, buf, bindflag) |
05ef7169 | 1120 | register Lisp_Object symbol, newval; |
2829d05f | 1121 | struct buffer *buf; |
05ef7169 | 1122 | int bindflag; |
7921925c | 1123 | { |
1bfcade3 | 1124 | int voide = EQ (newval, Qunbound); |
7921925c | 1125 | |
4c47c973 | 1126 | register Lisp_Object valcontents, innercontents, tem1, current_alist_element; |
7921925c | 1127 | |
2829d05f RS |
1128 | if (buf == 0) |
1129 | buf = current_buffer; | |
1130 | ||
1131 | /* If restoring in a dead buffer, do nothing. */ | |
1132 | if (NILP (buf->name)) | |
1133 | return newval; | |
1134 | ||
b7826503 | 1135 | CHECK_SYMBOL (symbol); |
f35d5bad GM |
1136 | if (SYMBOL_CONSTANT_P (symbol) |
1137 | && (NILP (Fkeywordp (symbol)) | |
1138 | || !EQ (newval, SYMBOL_VALUE (symbol)))) | |
d9c2a0f2 | 1139 | return Fsignal (Qsetting_constant, Fcons (symbol, Qnil)); |
4c47c973 | 1140 | |
f35d5bad GM |
1141 | innercontents = valcontents = SYMBOL_VALUE (symbol); |
1142 | ||
e9ebc175 | 1143 | if (BUFFER_OBJFWDP (valcontents)) |
7921925c | 1144 | { |
999b32fd | 1145 | int offset = XBUFFER_OBJFWD (valcontents)->offset; |
f6cd0527 | 1146 | int idx = PER_BUFFER_IDX (offset); |
999b32fd GM |
1147 | if (idx > 0 |
1148 | && !bindflag | |
1149 | && !let_shadows_buffer_binding_p (symbol)) | |
f6cd0527 | 1150 | SET_PER_BUFFER_VALUE_P (buf, idx, 1); |
7921925c | 1151 | } |
e9ebc175 KH |
1152 | else if (BUFFER_LOCAL_VALUEP (valcontents) |
1153 | || SOME_BUFFER_LOCAL_VALUEP (valcontents)) | |
7921925c | 1154 | { |
42e975f0 | 1155 | /* valcontents is a struct Lisp_Buffer_Local_Value. */ |
f35d5bad GM |
1156 | if (XSYMBOL (symbol)->indirect_variable) |
1157 | symbol = indirect_variable (symbol); | |
42e975f0 RS |
1158 | |
1159 | /* What binding is loaded right now? */ | |
b0c2d1c6 | 1160 | current_alist_element |
7539e11f | 1161 | = XCAR (XBUFFER_LOCAL_VALUE (valcontents)->cdr); |
d8cafeb5 JB |
1162 | |
1163 | /* If the current buffer is not the buffer whose binding is | |
42e975f0 RS |
1164 | loaded, or if there may be frame-local bindings and the frame |
1165 | isn't the right one, or if it's a Lisp_Buffer_Local_Value and | |
1166 | the default binding is loaded, the loaded binding may be the | |
1167 | wrong one. */ | |
8801a864 KR |
1168 | if (!BUFFERP (XBUFFER_LOCAL_VALUE (valcontents)->buffer) |
1169 | || buf != XBUFFER (XBUFFER_LOCAL_VALUE (valcontents)->buffer) | |
42e975f0 RS |
1170 | || (XBUFFER_LOCAL_VALUE (valcontents)->check_frame |
1171 | && !EQ (selected_frame, XBUFFER_LOCAL_VALUE (valcontents)->frame)) | |
1172 | || (BUFFER_LOCAL_VALUEP (valcontents) | |
1173 | && EQ (XCAR (current_alist_element), | |
1174 | current_alist_element))) | |
7921925c | 1175 | { |
42e975f0 RS |
1176 | /* The currently loaded binding is not necessarily valid. |
1177 | We need to unload it, and choose a new binding. */ | |
1178 | ||
1179 | /* Write out `realvalue' to the old loaded binding. */ | |
d8cafeb5 | 1180 | Fsetcdr (current_alist_element, |
b0c2d1c6 | 1181 | do_symval_forwarding (XBUFFER_LOCAL_VALUE (valcontents)->realvalue)); |
7921925c | 1182 | |
42e975f0 | 1183 | /* Find the new binding. */ |
2829d05f | 1184 | tem1 = Fassq (symbol, buf->local_var_alist); |
b0c2d1c6 RS |
1185 | XBUFFER_LOCAL_VALUE (valcontents)->found_for_buffer = 1; |
1186 | XBUFFER_LOCAL_VALUE (valcontents)->found_for_frame = 0; | |
1187 | ||
a33ef3ab | 1188 | if (NILP (tem1)) |
d8cafeb5 JB |
1189 | { |
1190 | /* This buffer still sees the default value. */ | |
1191 | ||
1192 | /* If the variable is a Lisp_Some_Buffer_Local_Value, | |
05ef7169 | 1193 | or if this is `let' rather than `set', |
d8cafeb5 | 1194 | make CURRENT-ALIST-ELEMENT point to itself, |
1f35ce36 RS |
1195 | indicating that we're seeing the default value. |
1196 | Likewise if the variable has been let-bound | |
1197 | in the current buffer. */ | |
1198 | if (bindflag || SOME_BUFFER_LOCAL_VALUEP (valcontents) | |
1199 | || let_shadows_buffer_binding_p (symbol)) | |
b0c2d1c6 RS |
1200 | { |
1201 | XBUFFER_LOCAL_VALUE (valcontents)->found_for_buffer = 0; | |
1202 | ||
1203 | if (XBUFFER_LOCAL_VALUE (valcontents)->check_frame) | |
1cc04aed GM |
1204 | tem1 = Fassq (symbol, |
1205 | XFRAME (selected_frame)->param_alist); | |
d8cafeb5 | 1206 | |
b0c2d1c6 RS |
1207 | if (! NILP (tem1)) |
1208 | XBUFFER_LOCAL_VALUE (valcontents)->found_for_frame = 1; | |
1209 | else | |
1210 | tem1 = XBUFFER_LOCAL_VALUE (valcontents)->cdr; | |
1211 | } | |
05ef7169 | 1212 | /* If it's a Lisp_Buffer_Local_Value, being set not bound, |
1f35ce36 RS |
1213 | and we're not within a let that was made for this buffer, |
1214 | create a new buffer-local binding for the variable. | |
1215 | That means, give this buffer a new assoc for a local value | |
42e975f0 | 1216 | and load that binding. */ |
d8cafeb5 JB |
1217 | else |
1218 | { | |
d2fde41d | 1219 | tem1 = Fcons (symbol, XCDR (current_alist_element)); |
2829d05f RS |
1220 | buf->local_var_alist |
1221 | = Fcons (tem1, buf->local_var_alist); | |
d8cafeb5 JB |
1222 | } |
1223 | } | |
b0c2d1c6 | 1224 | |
42e975f0 | 1225 | /* Record which binding is now loaded. */ |
f3fbd155 KR |
1226 | XSETCAR (XBUFFER_LOCAL_VALUE (valcontents)->cdr, |
1227 | tem1); | |
d8cafeb5 | 1228 | |
42e975f0 | 1229 | /* Set `buffer' and `frame' slots for thebinding now loaded. */ |
2829d05f | 1230 | XSETBUFFER (XBUFFER_LOCAL_VALUE (valcontents)->buffer, buf); |
1cc04aed | 1231 | XBUFFER_LOCAL_VALUE (valcontents)->frame = selected_frame; |
7921925c | 1232 | } |
4c47c973 | 1233 | innercontents = XBUFFER_LOCAL_VALUE (valcontents)->realvalue; |
7921925c | 1234 | } |
d8cafeb5 | 1235 | |
7921925c JB |
1236 | /* If storing void (making the symbol void), forward only through |
1237 | buffer-local indicator, not through Lisp_Objfwd, etc. */ | |
1238 | if (voide) | |
7a283f36 | 1239 | store_symval_forwarding (symbol, Qnil, newval, buf); |
7921925c | 1240 | else |
7a283f36 | 1241 | store_symval_forwarding (symbol, innercontents, newval, buf); |
4c47c973 GM |
1242 | |
1243 | /* If we just set a variable whose current binding is frame-local, | |
1244 | store the new value in the frame parameter too. */ | |
1245 | ||
1246 | if (BUFFER_LOCAL_VALUEP (valcontents) | |
1247 | || SOME_BUFFER_LOCAL_VALUEP (valcontents)) | |
1248 | { | |
1249 | /* What binding is loaded right now? */ | |
1250 | current_alist_element | |
1251 | = XCAR (XBUFFER_LOCAL_VALUE (valcontents)->cdr); | |
1252 | ||
1253 | /* If the current buffer is not the buffer whose binding is | |
1254 | loaded, or if there may be frame-local bindings and the frame | |
1255 | isn't the right one, or if it's a Lisp_Buffer_Local_Value and | |
1256 | the default binding is loaded, the loaded binding may be the | |
1257 | wrong one. */ | |
1258 | if (XBUFFER_LOCAL_VALUE (valcontents)->found_for_frame) | |
f3fbd155 | 1259 | XSETCDR (current_alist_element, newval); |
4c47c973 | 1260 | } |
d8cafeb5 | 1261 | |
7921925c JB |
1262 | return newval; |
1263 | } | |
1264 | \f | |
1265 | /* Access or set a buffer-local symbol's default value. */ | |
1266 | ||
d9c2a0f2 | 1267 | /* Return the default value of SYMBOL, but don't check for voidness. |
1bfcade3 | 1268 | Return Qunbound if it is void. */ |
7921925c JB |
1269 | |
1270 | Lisp_Object | |
d9c2a0f2 EN |
1271 | default_value (symbol) |
1272 | Lisp_Object symbol; | |
7921925c JB |
1273 | { |
1274 | register Lisp_Object valcontents; | |
1275 | ||
b7826503 | 1276 | CHECK_SYMBOL (symbol); |
f35d5bad | 1277 | valcontents = SYMBOL_VALUE (symbol); |
7921925c JB |
1278 | |
1279 | /* For a built-in buffer-local variable, get the default value | |
1280 | rather than letting do_symval_forwarding get the current value. */ | |
e9ebc175 | 1281 | if (BUFFER_OBJFWDP (valcontents)) |
7921925c | 1282 | { |
999b32fd | 1283 | int offset = XBUFFER_OBJFWD (valcontents)->offset; |
f6cd0527 GM |
1284 | if (PER_BUFFER_IDX (offset) != 0) |
1285 | return PER_BUFFER_DEFAULT (offset); | |
7921925c JB |
1286 | } |
1287 | ||
1288 | /* Handle user-created local variables. */ | |
e9ebc175 KH |
1289 | if (BUFFER_LOCAL_VALUEP (valcontents) |
1290 | || SOME_BUFFER_LOCAL_VALUEP (valcontents)) | |
7921925c JB |
1291 | { |
1292 | /* If var is set up for a buffer that lacks a local value for it, | |
1293 | the current value is nominally the default value. | |
42e975f0 | 1294 | But the `realvalue' slot may be more up to date, since |
7921925c JB |
1295 | ordinary setq stores just that slot. So use that. */ |
1296 | Lisp_Object current_alist_element, alist_element_car; | |
1297 | current_alist_element | |
7539e11f KR |
1298 | = XCAR (XBUFFER_LOCAL_VALUE (valcontents)->cdr); |
1299 | alist_element_car = XCAR (current_alist_element); | |
7921925c | 1300 | if (EQ (alist_element_car, current_alist_element)) |
b0c2d1c6 | 1301 | return do_symval_forwarding (XBUFFER_LOCAL_VALUE (valcontents)->realvalue); |
7921925c | 1302 | else |
7539e11f | 1303 | return XCDR (XBUFFER_LOCAL_VALUE (valcontents)->cdr); |
7921925c JB |
1304 | } |
1305 | /* For other variables, get the current value. */ | |
1306 | return do_symval_forwarding (valcontents); | |
1307 | } | |
1308 | ||
1309 | DEFUN ("default-boundp", Fdefault_boundp, Sdefault_boundp, 1, 1, 0, | |
8c1a1077 PJ |
1310 | doc: /* Return t if SYMBOL has a non-void default value. |
1311 | This is the value that is seen in buffers that do not have their own values | |
1312 | for this variable. */) | |
1313 | (symbol) | |
d9c2a0f2 | 1314 | Lisp_Object symbol; |
7921925c JB |
1315 | { |
1316 | register Lisp_Object value; | |
1317 | ||
d9c2a0f2 | 1318 | value = default_value (symbol); |
1bfcade3 | 1319 | return (EQ (value, Qunbound) ? Qnil : Qt); |
7921925c JB |
1320 | } |
1321 | ||
1322 | DEFUN ("default-value", Fdefault_value, Sdefault_value, 1, 1, 0, | |
8c1a1077 PJ |
1323 | doc: /* Return SYMBOL's default value. |
1324 | This is the value that is seen in buffers that do not have their own values | |
1325 | for this variable. The default value is meaningful for variables with | |
1326 | local bindings in certain buffers. */) | |
1327 | (symbol) | |
d9c2a0f2 | 1328 | Lisp_Object symbol; |
7921925c JB |
1329 | { |
1330 | register Lisp_Object value; | |
1331 | ||
d9c2a0f2 | 1332 | value = default_value (symbol); |
1bfcade3 | 1333 | if (EQ (value, Qunbound)) |
d9c2a0f2 | 1334 | return Fsignal (Qvoid_variable, Fcons (symbol, Qnil)); |
7921925c JB |
1335 | return value; |
1336 | } | |
1337 | ||
1338 | DEFUN ("set-default", Fset_default, Sset_default, 2, 2, 0, | |
8c1a1077 PJ |
1339 | doc: /* Set SYMBOL's default value to VAL. SYMBOL and VAL are evaluated. |
1340 | The default value is seen in buffers that do not have their own values | |
1341 | for this variable. */) | |
1342 | (symbol, value) | |
d9c2a0f2 | 1343 | Lisp_Object symbol, value; |
7921925c JB |
1344 | { |
1345 | register Lisp_Object valcontents, current_alist_element, alist_element_buffer; | |
1346 | ||
b7826503 | 1347 | CHECK_SYMBOL (symbol); |
f35d5bad | 1348 | valcontents = SYMBOL_VALUE (symbol); |
7921925c JB |
1349 | |
1350 | /* Handle variables like case-fold-search that have special slots | |
1351 | in the buffer. Make them work apparently like Lisp_Buffer_Local_Value | |
1352 | variables. */ | |
e9ebc175 | 1353 | if (BUFFER_OBJFWDP (valcontents)) |
7921925c | 1354 | { |
999b32fd | 1355 | int offset = XBUFFER_OBJFWD (valcontents)->offset; |
f6cd0527 | 1356 | int idx = PER_BUFFER_IDX (offset); |
7921925c | 1357 | |
f6cd0527 | 1358 | PER_BUFFER_DEFAULT (offset) = value; |
984ef137 KH |
1359 | |
1360 | /* If this variable is not always local in all buffers, | |
1361 | set it in the buffers that don't nominally have a local value. */ | |
999b32fd | 1362 | if (idx > 0) |
7921925c | 1363 | { |
999b32fd GM |
1364 | struct buffer *b; |
1365 | ||
7921925c | 1366 | for (b = all_buffers; b; b = b->next) |
f6cd0527 GM |
1367 | if (!PER_BUFFER_VALUE_P (b, idx)) |
1368 | PER_BUFFER_VALUE (b, offset) = value; | |
7921925c JB |
1369 | } |
1370 | return value; | |
1371 | } | |
1372 | ||
e9ebc175 KH |
1373 | if (!BUFFER_LOCAL_VALUEP (valcontents) |
1374 | && !SOME_BUFFER_LOCAL_VALUEP (valcontents)) | |
d9c2a0f2 | 1375 | return Fset (symbol, value); |
7921925c | 1376 | |
42e975f0 | 1377 | /* Store new value into the DEFAULT-VALUE slot. */ |
f3fbd155 | 1378 | XSETCDR (XBUFFER_LOCAL_VALUE (valcontents)->cdr, value); |
7921925c | 1379 | |
42e975f0 | 1380 | /* If the default binding is now loaded, set the REALVALUE slot too. */ |
8d4afcac | 1381 | current_alist_element |
7539e11f | 1382 | = XCAR (XBUFFER_LOCAL_VALUE (valcontents)->cdr); |
7921925c JB |
1383 | alist_element_buffer = Fcar (current_alist_element); |
1384 | if (EQ (alist_element_buffer, current_alist_element)) | |
7a283f36 GM |
1385 | store_symval_forwarding (symbol, |
1386 | XBUFFER_LOCAL_VALUE (valcontents)->realvalue, | |
1387 | value, NULL); | |
7921925c JB |
1388 | |
1389 | return value; | |
1390 | } | |
1391 | ||
1392 | DEFUN ("setq-default", Fsetq_default, Ssetq_default, 2, UNEVALLED, 0, | |
8c1a1077 PJ |
1393 | doc: /* Set the default value of variable VAR to VALUE. |
1394 | VAR, the variable name, is literal (not evaluated); | |
1395 | VALUE is an expression and it is evaluated. | |
1396 | The default value of a variable is seen in buffers | |
1397 | that do not have their own values for the variable. | |
1398 | ||
1399 | More generally, you can use multiple variables and values, as in | |
1400 | (setq-default SYMBOL VALUE SYMBOL VALUE...) | |
1401 | This sets each SYMBOL's default value to the corresponding VALUE. | |
1402 | The VALUE for the Nth SYMBOL can refer to the new default values | |
f9d1e467 PJ |
1403 | of previous SYMs. |
1404 | usage: (setq-default SYMBOL VALUE [SYMBOL VALUE...]) */) | |
8c1a1077 | 1405 | (args) |
7921925c JB |
1406 | Lisp_Object args; |
1407 | { | |
1408 | register Lisp_Object args_left; | |
d9c2a0f2 | 1409 | register Lisp_Object val, symbol; |
7921925c JB |
1410 | struct gcpro gcpro1; |
1411 | ||
a33ef3ab | 1412 | if (NILP (args)) |
7921925c JB |
1413 | return Qnil; |
1414 | ||
1415 | args_left = args; | |
1416 | GCPRO1 (args); | |
1417 | ||
1418 | do | |
1419 | { | |
1420 | val = Feval (Fcar (Fcdr (args_left))); | |
d2fde41d | 1421 | symbol = XCAR (args_left); |
d9c2a0f2 | 1422 | Fset_default (symbol, val); |
d2fde41d | 1423 | args_left = Fcdr (XCDR (args_left)); |
7921925c | 1424 | } |
a33ef3ab | 1425 | while (!NILP (args_left)); |
7921925c JB |
1426 | |
1427 | UNGCPRO; | |
1428 | return val; | |
1429 | } | |
1430 | \f | |
a5ca2b75 JB |
1431 | /* Lisp functions for creating and removing buffer-local variables. */ |
1432 | ||
7921925c | 1433 | DEFUN ("make-variable-buffer-local", Fmake_variable_buffer_local, Smake_variable_buffer_local, |
8c1a1077 PJ |
1434 | 1, 1, "vMake Variable Buffer Local: ", |
1435 | doc: /* Make VARIABLE become buffer-local whenever it is set. | |
1436 | At any time, the value for the current buffer is in effect, | |
1437 | unless the variable has never been set in this buffer, | |
1438 | in which case the default value is in effect. | |
1439 | Note that binding the variable with `let', or setting it while | |
1440 | a `let'-style binding made in this buffer is in effect, | |
1441 | does not make the variable buffer-local. | |
1442 | ||
1443 | The function `default-value' gets the default value and `set-default' sets it. */) | |
1444 | (variable) | |
d9c2a0f2 | 1445 | register Lisp_Object variable; |
7921925c | 1446 | { |
8d4afcac | 1447 | register Lisp_Object tem, valcontents, newval; |
7921925c | 1448 | |
b7826503 | 1449 | CHECK_SYMBOL (variable); |
7921925c | 1450 | |
f35d5bad | 1451 | valcontents = SYMBOL_VALUE (variable); |
d9c2a0f2 | 1452 | if (EQ (variable, Qnil) || EQ (variable, Qt) || KBOARD_OBJFWDP (valcontents)) |
d5db4077 | 1453 | error ("Symbol %s may not be buffer-local", SDATA (SYMBOL_NAME (variable))); |
7921925c | 1454 | |
e9ebc175 | 1455 | if (BUFFER_LOCAL_VALUEP (valcontents) || BUFFER_OBJFWDP (valcontents)) |
d9c2a0f2 | 1456 | return variable; |
e9ebc175 | 1457 | if (SOME_BUFFER_LOCAL_VALUEP (valcontents)) |
7921925c | 1458 | { |
f35d5bad | 1459 | XMISCTYPE (SYMBOL_VALUE (variable)) = Lisp_Misc_Buffer_Local_Value; |
d9c2a0f2 | 1460 | return variable; |
7921925c JB |
1461 | } |
1462 | if (EQ (valcontents, Qunbound)) | |
f35d5bad | 1463 | SET_SYMBOL_VALUE (variable, Qnil); |
d9c2a0f2 | 1464 | tem = Fcons (Qnil, Fsymbol_value (variable)); |
f3fbd155 | 1465 | XSETCAR (tem, tem); |
8d4afcac | 1466 | newval = allocate_misc (); |
324a6eef | 1467 | XMISCTYPE (newval) = Lisp_Misc_Buffer_Local_Value; |
f35d5bad | 1468 | XBUFFER_LOCAL_VALUE (newval)->realvalue = SYMBOL_VALUE (variable); |
b0c2d1c6 RS |
1469 | XBUFFER_LOCAL_VALUE (newval)->buffer = Fcurrent_buffer (); |
1470 | XBUFFER_LOCAL_VALUE (newval)->frame = Qnil; | |
42e975f0 | 1471 | XBUFFER_LOCAL_VALUE (newval)->found_for_buffer = 0; |
b0c2d1c6 RS |
1472 | XBUFFER_LOCAL_VALUE (newval)->found_for_frame = 0; |
1473 | XBUFFER_LOCAL_VALUE (newval)->check_frame = 0; | |
1474 | XBUFFER_LOCAL_VALUE (newval)->cdr = tem; | |
f35d5bad | 1475 | SET_SYMBOL_VALUE (variable, newval); |
d9c2a0f2 | 1476 | return variable; |
7921925c JB |
1477 | } |
1478 | ||
1479 | DEFUN ("make-local-variable", Fmake_local_variable, Smake_local_variable, | |
8c1a1077 PJ |
1480 | 1, 1, "vMake Local Variable: ", |
1481 | doc: /* Make VARIABLE have a separate value in the current buffer. | |
1482 | Other buffers will continue to share a common default value. | |
1483 | \(The buffer-local value of VARIABLE starts out as the same value | |
1484 | VARIABLE previously had. If VARIABLE was void, it remains void.\) | |
1485 | See also `make-variable-buffer-local'. | |
1486 | ||
1487 | If the variable is already arranged to become local when set, | |
1488 | this function causes a local value to exist for this buffer, | |
1489 | just as setting the variable would do. | |
1490 | ||
1491 | This function returns VARIABLE, and therefore | |
1492 | (set (make-local-variable 'VARIABLE) VALUE-EXP) | |
1493 | works. | |
1494 | ||
1495 | Do not use `make-local-variable' to make a hook variable buffer-local. | |
515f3f25 | 1496 | Instead, use `add-hook' and specify t for the LOCAL argument. */) |
8c1a1077 | 1497 | (variable) |
d9c2a0f2 | 1498 | register Lisp_Object variable; |
7921925c JB |
1499 | { |
1500 | register Lisp_Object tem, valcontents; | |
1501 | ||
b7826503 | 1502 | CHECK_SYMBOL (variable); |
7921925c | 1503 | |
f35d5bad | 1504 | valcontents = SYMBOL_VALUE (variable); |
d9c2a0f2 | 1505 | if (EQ (variable, Qnil) || EQ (variable, Qt) || KBOARD_OBJFWDP (valcontents)) |
d5db4077 | 1506 | error ("Symbol %s may not be buffer-local", SDATA (SYMBOL_NAME (variable))); |
7921925c | 1507 | |
e9ebc175 | 1508 | if (BUFFER_LOCAL_VALUEP (valcontents) || BUFFER_OBJFWDP (valcontents)) |
7921925c | 1509 | { |
d9c2a0f2 | 1510 | tem = Fboundp (variable); |
7403b5c8 | 1511 | |
7921925c JB |
1512 | /* Make sure the symbol has a local value in this particular buffer, |
1513 | by setting it to the same value it already has. */ | |
d9c2a0f2 EN |
1514 | Fset (variable, (EQ (tem, Qt) ? Fsymbol_value (variable) : Qunbound)); |
1515 | return variable; | |
7921925c | 1516 | } |
42e975f0 | 1517 | /* Make sure symbol is set up to hold per-buffer values. */ |
e9ebc175 | 1518 | if (!SOME_BUFFER_LOCAL_VALUEP (valcontents)) |
7921925c | 1519 | { |
8d4afcac | 1520 | Lisp_Object newval; |
7921925c | 1521 | tem = Fcons (Qnil, do_symval_forwarding (valcontents)); |
f3fbd155 | 1522 | XSETCAR (tem, tem); |
8d4afcac | 1523 | newval = allocate_misc (); |
324a6eef | 1524 | XMISCTYPE (newval) = Lisp_Misc_Some_Buffer_Local_Value; |
f35d5bad | 1525 | XBUFFER_LOCAL_VALUE (newval)->realvalue = SYMBOL_VALUE (variable); |
b0c2d1c6 RS |
1526 | XBUFFER_LOCAL_VALUE (newval)->buffer = Qnil; |
1527 | XBUFFER_LOCAL_VALUE (newval)->frame = Qnil; | |
1528 | XBUFFER_LOCAL_VALUE (newval)->found_for_buffer = 0; | |
1529 | XBUFFER_LOCAL_VALUE (newval)->found_for_frame = 0; | |
1530 | XBUFFER_LOCAL_VALUE (newval)->check_frame = 0; | |
1531 | XBUFFER_LOCAL_VALUE (newval)->cdr = tem; | |
f35d5bad | 1532 | SET_SYMBOL_VALUE (variable, newval);; |
7921925c | 1533 | } |
42e975f0 | 1534 | /* Make sure this buffer has its own value of symbol. */ |
d9c2a0f2 | 1535 | tem = Fassq (variable, current_buffer->local_var_alist); |
a33ef3ab | 1536 | if (NILP (tem)) |
7921925c | 1537 | { |
a5d004a1 RS |
1538 | /* Swap out any local binding for some other buffer, and make |
1539 | sure the current value is permanently recorded, if it's the | |
1540 | default value. */ | |
d9c2a0f2 | 1541 | find_symbol_value (variable); |
a5d004a1 | 1542 | |
7921925c | 1543 | current_buffer->local_var_alist |
f35d5bad | 1544 | = Fcons (Fcons (variable, XCDR (XBUFFER_LOCAL_VALUE (SYMBOL_VALUE (variable))->cdr)), |
7921925c JB |
1545 | current_buffer->local_var_alist); |
1546 | ||
1547 | /* Make sure symbol does not think it is set up for this buffer; | |
42e975f0 | 1548 | force it to look once again for this buffer's value. */ |
7921925c | 1549 | { |
8d4afcac | 1550 | Lisp_Object *pvalbuf; |
a5d004a1 | 1551 | |
f35d5bad | 1552 | valcontents = SYMBOL_VALUE (variable); |
a5d004a1 | 1553 | |
b0c2d1c6 | 1554 | pvalbuf = &XBUFFER_LOCAL_VALUE (valcontents)->buffer; |
8d4afcac KH |
1555 | if (current_buffer == XBUFFER (*pvalbuf)) |
1556 | *pvalbuf = Qnil; | |
b0c2d1c6 | 1557 | XBUFFER_LOCAL_VALUE (valcontents)->found_for_buffer = 0; |
7921925c | 1558 | } |
7921925c | 1559 | } |
a5ca2b75 | 1560 | |
42e975f0 RS |
1561 | /* If the symbol forwards into a C variable, then load the binding |
1562 | for this buffer now. If C code modifies the variable before we | |
1563 | load the binding in, then that new value will clobber the default | |
1564 | binding the next time we unload it. */ | |
f35d5bad | 1565 | valcontents = XBUFFER_LOCAL_VALUE (SYMBOL_VALUE (variable))->realvalue; |
e9ebc175 | 1566 | if (INTFWDP (valcontents) || BOOLFWDP (valcontents) || OBJFWDP (valcontents)) |
f35d5bad | 1567 | swap_in_symval_forwarding (variable, SYMBOL_VALUE (variable)); |
a5ca2b75 | 1568 | |
d9c2a0f2 | 1569 | return variable; |
7921925c JB |
1570 | } |
1571 | ||
1572 | DEFUN ("kill-local-variable", Fkill_local_variable, Skill_local_variable, | |
8c1a1077 PJ |
1573 | 1, 1, "vKill Local Variable: ", |
1574 | doc: /* Make VARIABLE no longer have a separate value in the current buffer. | |
1575 | From now on the default value will apply in this buffer. */) | |
1576 | (variable) | |
d9c2a0f2 | 1577 | register Lisp_Object variable; |
7921925c JB |
1578 | { |
1579 | register Lisp_Object tem, valcontents; | |
1580 | ||
b7826503 | 1581 | CHECK_SYMBOL (variable); |
7921925c | 1582 | |
f35d5bad | 1583 | valcontents = SYMBOL_VALUE (variable); |
7921925c | 1584 | |
e9ebc175 | 1585 | if (BUFFER_OBJFWDP (valcontents)) |
7921925c | 1586 | { |
999b32fd | 1587 | int offset = XBUFFER_OBJFWD (valcontents)->offset; |
f6cd0527 | 1588 | int idx = PER_BUFFER_IDX (offset); |
7921925c | 1589 | |
999b32fd | 1590 | if (idx > 0) |
7921925c | 1591 | { |
f6cd0527 GM |
1592 | SET_PER_BUFFER_VALUE_P (current_buffer, idx, 0); |
1593 | PER_BUFFER_VALUE (current_buffer, offset) | |
1594 | = PER_BUFFER_DEFAULT (offset); | |
7921925c | 1595 | } |
d9c2a0f2 | 1596 | return variable; |
7921925c JB |
1597 | } |
1598 | ||
e9ebc175 KH |
1599 | if (!BUFFER_LOCAL_VALUEP (valcontents) |
1600 | && !SOME_BUFFER_LOCAL_VALUEP (valcontents)) | |
d9c2a0f2 | 1601 | return variable; |
7921925c | 1602 | |
42e975f0 | 1603 | /* Get rid of this buffer's alist element, if any. */ |
7921925c | 1604 | |
d9c2a0f2 | 1605 | tem = Fassq (variable, current_buffer->local_var_alist); |
a33ef3ab | 1606 | if (!NILP (tem)) |
8d4afcac KH |
1607 | current_buffer->local_var_alist |
1608 | = Fdelq (tem, current_buffer->local_var_alist); | |
7921925c | 1609 | |
42e975f0 RS |
1610 | /* If the symbol is set up with the current buffer's binding |
1611 | loaded, recompute its value. We have to do it now, or else | |
1612 | forwarded objects won't work right. */ | |
7921925c | 1613 | { |
8d4afcac | 1614 | Lisp_Object *pvalbuf; |
f35d5bad | 1615 | valcontents = SYMBOL_VALUE (variable); |
b0c2d1c6 | 1616 | pvalbuf = &XBUFFER_LOCAL_VALUE (valcontents)->buffer; |
8d4afcac | 1617 | if (current_buffer == XBUFFER (*pvalbuf)) |
79c83e03 KH |
1618 | { |
1619 | *pvalbuf = Qnil; | |
b0c2d1c6 | 1620 | XBUFFER_LOCAL_VALUE (valcontents)->found_for_buffer = 0; |
978dd578 | 1621 | find_symbol_value (variable); |
79c83e03 | 1622 | } |
7921925c JB |
1623 | } |
1624 | ||
d9c2a0f2 | 1625 | return variable; |
7921925c | 1626 | } |
62476adc | 1627 | |
b0c2d1c6 RS |
1628 | /* Lisp functions for creating and removing buffer-local variables. */ |
1629 | ||
1630 | DEFUN ("make-variable-frame-local", Fmake_variable_frame_local, Smake_variable_frame_local, | |
8c1a1077 PJ |
1631 | 1, 1, "vMake Variable Frame Local: ", |
1632 | doc: /* Enable VARIABLE to have frame-local bindings. | |
1633 | When a frame-local binding exists in the current frame, | |
1634 | it is in effect whenever the current buffer has no buffer-local binding. | |
76b3cecf | 1635 | A frame-local binding is actually a frame parameter value; |
8c1a1077 PJ |
1636 | thus, any given frame has a local binding for VARIABLE |
1637 | if it has a value for the frame parameter named VARIABLE. | |
76b3cecf | 1638 | See `modify-frame-parameters' for how to set frame parameters. */) |
8c1a1077 | 1639 | (variable) |
b0c2d1c6 RS |
1640 | register Lisp_Object variable; |
1641 | { | |
1642 | register Lisp_Object tem, valcontents, newval; | |
1643 | ||
b7826503 | 1644 | CHECK_SYMBOL (variable); |
b0c2d1c6 | 1645 | |
f35d5bad | 1646 | valcontents = SYMBOL_VALUE (variable); |
b0c2d1c6 RS |
1647 | if (EQ (variable, Qnil) || EQ (variable, Qt) || KBOARD_OBJFWDP (valcontents) |
1648 | || BUFFER_OBJFWDP (valcontents)) | |
d5db4077 | 1649 | error ("Symbol %s may not be frame-local", SDATA (SYMBOL_NAME (variable))); |
b0c2d1c6 RS |
1650 | |
1651 | if (BUFFER_LOCAL_VALUEP (valcontents) | |
1652 | || SOME_BUFFER_LOCAL_VALUEP (valcontents)) | |
42e975f0 RS |
1653 | { |
1654 | XBUFFER_LOCAL_VALUE (valcontents)->check_frame = 1; | |
1655 | return variable; | |
1656 | } | |
b0c2d1c6 RS |
1657 | |
1658 | if (EQ (valcontents, Qunbound)) | |
f35d5bad | 1659 | SET_SYMBOL_VALUE (variable, Qnil); |
b0c2d1c6 | 1660 | tem = Fcons (Qnil, Fsymbol_value (variable)); |
f3fbd155 | 1661 | XSETCAR (tem, tem); |
b0c2d1c6 RS |
1662 | newval = allocate_misc (); |
1663 | XMISCTYPE (newval) = Lisp_Misc_Some_Buffer_Local_Value; | |
f35d5bad | 1664 | XBUFFER_LOCAL_VALUE (newval)->realvalue = SYMBOL_VALUE (variable); |
b0c2d1c6 RS |
1665 | XBUFFER_LOCAL_VALUE (newval)->buffer = Qnil; |
1666 | XBUFFER_LOCAL_VALUE (newval)->frame = Qnil; | |
1667 | XBUFFER_LOCAL_VALUE (newval)->found_for_buffer = 0; | |
1668 | XBUFFER_LOCAL_VALUE (newval)->found_for_frame = 0; | |
1669 | XBUFFER_LOCAL_VALUE (newval)->check_frame = 1; | |
1670 | XBUFFER_LOCAL_VALUE (newval)->cdr = tem; | |
f35d5bad | 1671 | SET_SYMBOL_VALUE (variable, newval); |
b0c2d1c6 RS |
1672 | return variable; |
1673 | } | |
1674 | ||
62476adc | 1675 | DEFUN ("local-variable-p", Flocal_variable_p, Slocal_variable_p, |
8c1a1077 PJ |
1676 | 1, 2, 0, |
1677 | doc: /* Non-nil if VARIABLE has a local binding in buffer BUFFER. | |
1678 | BUFFER defaults to the current buffer. */) | |
1679 | (variable, buffer) | |
d9c2a0f2 | 1680 | register Lisp_Object variable, buffer; |
62476adc RS |
1681 | { |
1682 | Lisp_Object valcontents; | |
c48ead86 KH |
1683 | register struct buffer *buf; |
1684 | ||
1685 | if (NILP (buffer)) | |
1686 | buf = current_buffer; | |
1687 | else | |
1688 | { | |
b7826503 | 1689 | CHECK_BUFFER (buffer); |
c48ead86 KH |
1690 | buf = XBUFFER (buffer); |
1691 | } | |
62476adc | 1692 | |
b7826503 | 1693 | CHECK_SYMBOL (variable); |
62476adc | 1694 | |
f35d5bad | 1695 | valcontents = SYMBOL_VALUE (variable); |
c48ead86 | 1696 | if (BUFFER_LOCAL_VALUEP (valcontents) |
1e5f16fa | 1697 | || SOME_BUFFER_LOCAL_VALUEP (valcontents)) |
c48ead86 KH |
1698 | { |
1699 | Lisp_Object tail, elt; | |
f35d5bad GM |
1700 | |
1701 | variable = indirect_variable (variable); | |
7539e11f | 1702 | for (tail = buf->local_var_alist; CONSP (tail); tail = XCDR (tail)) |
c48ead86 | 1703 | { |
7539e11f KR |
1704 | elt = XCAR (tail); |
1705 | if (EQ (variable, XCAR (elt))) | |
c48ead86 KH |
1706 | return Qt; |
1707 | } | |
1708 | } | |
1709 | if (BUFFER_OBJFWDP (valcontents)) | |
1710 | { | |
1711 | int offset = XBUFFER_OBJFWD (valcontents)->offset; | |
f6cd0527 GM |
1712 | int idx = PER_BUFFER_IDX (offset); |
1713 | if (idx == -1 || PER_BUFFER_VALUE_P (buf, idx)) | |
c48ead86 KH |
1714 | return Qt; |
1715 | } | |
1716 | return Qnil; | |
62476adc | 1717 | } |
f4f04cee RS |
1718 | |
1719 | DEFUN ("local-variable-if-set-p", Flocal_variable_if_set_p, Slocal_variable_if_set_p, | |
8c1a1077 PJ |
1720 | 1, 2, 0, |
1721 | doc: /* Non-nil if VARIABLE will be local in buffer BUFFER if it is set there. | |
1722 | BUFFER defaults to the current buffer. */) | |
1723 | (variable, buffer) | |
d9c2a0f2 | 1724 | register Lisp_Object variable, buffer; |
f4f04cee RS |
1725 | { |
1726 | Lisp_Object valcontents; | |
1727 | register struct buffer *buf; | |
1728 | ||
1729 | if (NILP (buffer)) | |
1730 | buf = current_buffer; | |
1731 | else | |
1732 | { | |
b7826503 | 1733 | CHECK_BUFFER (buffer); |
f4f04cee RS |
1734 | buf = XBUFFER (buffer); |
1735 | } | |
1736 | ||
b7826503 | 1737 | CHECK_SYMBOL (variable); |
f4f04cee | 1738 | |
f35d5bad | 1739 | valcontents = SYMBOL_VALUE (variable); |
f4f04cee RS |
1740 | |
1741 | /* This means that make-variable-buffer-local was done. */ | |
1742 | if (BUFFER_LOCAL_VALUEP (valcontents)) | |
1743 | return Qt; | |
1744 | /* All these slots become local if they are set. */ | |
1745 | if (BUFFER_OBJFWDP (valcontents)) | |
1746 | return Qt; | |
1747 | if (SOME_BUFFER_LOCAL_VALUEP (valcontents)) | |
1748 | { | |
1749 | Lisp_Object tail, elt; | |
7539e11f | 1750 | for (tail = buf->local_var_alist; CONSP (tail); tail = XCDR (tail)) |
f4f04cee | 1751 | { |
7539e11f KR |
1752 | elt = XCAR (tail); |
1753 | if (EQ (variable, XCAR (elt))) | |
f4f04cee RS |
1754 | return Qt; |
1755 | } | |
1756 | } | |
1757 | return Qnil; | |
1758 | } | |
7921925c | 1759 | \f |
ffd56f97 JB |
1760 | /* Find the function at the end of a chain of symbol function indirections. */ |
1761 | ||
1762 | /* If OBJECT is a symbol, find the end of its function chain and | |
1763 | return the value found there. If OBJECT is not a symbol, just | |
1764 | return it. If there is a cycle in the function chain, signal a | |
1765 | cyclic-function-indirection error. | |
1766 | ||
1767 | This is like Findirect_function, except that it doesn't signal an | |
1768 | error if the chain ends up unbound. */ | |
1769 | Lisp_Object | |
a2932990 | 1770 | indirect_function (object) |
62476adc | 1771 | register Lisp_Object object; |
ffd56f97 | 1772 | { |
eb8c3be9 | 1773 | Lisp_Object tortoise, hare; |
ffd56f97 | 1774 | |
eb8c3be9 | 1775 | hare = tortoise = object; |
ffd56f97 JB |
1776 | |
1777 | for (;;) | |
1778 | { | |
e9ebc175 | 1779 | if (!SYMBOLP (hare) || EQ (hare, Qunbound)) |
ffd56f97 JB |
1780 | break; |
1781 | hare = XSYMBOL (hare)->function; | |
e9ebc175 | 1782 | if (!SYMBOLP (hare) || EQ (hare, Qunbound)) |
ffd56f97 JB |
1783 | break; |
1784 | hare = XSYMBOL (hare)->function; | |
1785 | ||
eb8c3be9 | 1786 | tortoise = XSYMBOL (tortoise)->function; |
ffd56f97 | 1787 | |
eb8c3be9 | 1788 | if (EQ (hare, tortoise)) |
ffd56f97 JB |
1789 | Fsignal (Qcyclic_function_indirection, Fcons (object, Qnil)); |
1790 | } | |
1791 | ||
1792 | return hare; | |
1793 | } | |
1794 | ||
1795 | DEFUN ("indirect-function", Findirect_function, Sindirect_function, 1, 1, 0, | |
8c1a1077 PJ |
1796 | doc: /* Return the function at the end of OBJECT's function chain. |
1797 | If OBJECT is a symbol, follow all function indirections and return the final | |
1798 | function binding. | |
1799 | If OBJECT is not a symbol, just return it. | |
1800 | Signal a void-function error if the final symbol is unbound. | |
1801 | Signal a cyclic-function-indirection error if there is a loop in the | |
1802 | function chain of symbols. */) | |
1803 | (object) | |
1804 | register Lisp_Object object; | |
ffd56f97 JB |
1805 | { |
1806 | Lisp_Object result; | |
1807 | ||
1808 | result = indirect_function (object); | |
1809 | ||
1810 | if (EQ (result, Qunbound)) | |
1811 | return Fsignal (Qvoid_function, Fcons (object, Qnil)); | |
1812 | return result; | |
1813 | } | |
1814 | \f | |
7921925c JB |
1815 | /* Extract and set vector and string elements */ |
1816 | ||
1817 | DEFUN ("aref", Faref, Saref, 2, 2, 0, | |
8c1a1077 PJ |
1818 | doc: /* Return the element of ARRAY at index IDX. |
1819 | ARRAY may be a vector, a string, a char-table, a bool-vector, | |
1820 | or a byte-code object. IDX starts at 0. */) | |
1821 | (array, idx) | |
7921925c JB |
1822 | register Lisp_Object array; |
1823 | Lisp_Object idx; | |
1824 | { | |
1825 | register int idxval; | |
1826 | ||
b7826503 | 1827 | CHECK_NUMBER (idx); |
7921925c | 1828 | idxval = XINT (idx); |
e9ebc175 | 1829 | if (STRINGP (array)) |
7921925c | 1830 | { |
25638b07 RS |
1831 | int c, idxval_byte; |
1832 | ||
d5db4077 | 1833 | if (idxval < 0 || idxval >= SCHARS (array)) |
c24e4efe | 1834 | args_out_of_range (array, idx); |
25638b07 | 1835 | if (! STRING_MULTIBYTE (array)) |
d5db4077 | 1836 | return make_number ((unsigned char) SREF (array, idxval)); |
25638b07 RS |
1837 | idxval_byte = string_char_to_byte (array, idxval); |
1838 | ||
29f44a37 | 1839 | c = STRING_CHAR (SDATA (array) + idxval_byte, |
d5db4077 | 1840 | SBYTES (array) - idxval_byte); |
25638b07 | 1841 | return make_number (c); |
7921925c | 1842 | } |
4d276982 RS |
1843 | else if (BOOL_VECTOR_P (array)) |
1844 | { | |
1845 | int val; | |
4d276982 RS |
1846 | |
1847 | if (idxval < 0 || idxval >= XBOOL_VECTOR (array)->size) | |
1848 | args_out_of_range (array, idx); | |
1849 | ||
68be917d KH |
1850 | val = (unsigned char) XBOOL_VECTOR (array)->data[idxval / BITS_PER_CHAR]; |
1851 | return (val & (1 << (idxval % BITS_PER_CHAR)) ? Qt : Qnil); | |
4d276982 RS |
1852 | } |
1853 | else if (CHAR_TABLE_P (array)) | |
1854 | { | |
1855 | Lisp_Object val; | |
1856 | ||
6bbd7a29 GM |
1857 | val = Qnil; |
1858 | ||
4d276982 RS |
1859 | if (idxval < 0) |
1860 | args_out_of_range (array, idx); | |
ab5c3f93 | 1861 | if (idxval < CHAR_TABLE_ORDINARY_SLOTS) |
8313c4e7 | 1862 | { |
39e16e51 | 1863 | /* For ASCII and 8-bit European characters, the element is |
3a6cf6bd | 1864 | stored in the top table. */ |
8313c4e7 KH |
1865 | val = XCHAR_TABLE (array)->contents[idxval]; |
1866 | if (NILP (val)) | |
1867 | val = XCHAR_TABLE (array)->defalt; | |
1868 | while (NILP (val)) /* Follow parents until we find some value. */ | |
1869 | { | |
1870 | array = XCHAR_TABLE (array)->parent; | |
1871 | if (NILP (array)) | |
1872 | return Qnil; | |
1873 | val = XCHAR_TABLE (array)->contents[idxval]; | |
1874 | if (NILP (val)) | |
1875 | val = XCHAR_TABLE (array)->defalt; | |
1876 | } | |
1877 | return val; | |
1878 | } | |
4d276982 RS |
1879 | else |
1880 | { | |
39e16e51 KH |
1881 | int code[4], i; |
1882 | Lisp_Object sub_table; | |
8313c4e7 | 1883 | |
37309c9d | 1884 | SPLIT_CHAR (idxval, code[0], code[1], code[2]); |
e19c1eb4 KH |
1885 | if (code[1] < 32) code[1] = -1; |
1886 | else if (code[2] < 32) code[2] = -1; | |
1887 | ||
39e16e51 KH |
1888 | /* Here, the possible range of CODE[0] (== charset ID) is |
1889 | 128..MAX_CHARSET. Since the top level char table contains | |
1890 | data for multibyte characters after 256th element, we must | |
1891 | increment CODE[0] by 128 to get a correct index. */ | |
1892 | code[0] += 128; | |
1893 | code[3] = -1; /* anchor */ | |
4d276982 RS |
1894 | |
1895 | try_parent_char_table: | |
39e16e51 KH |
1896 | sub_table = array; |
1897 | for (i = 0; code[i] >= 0; i++) | |
4d276982 | 1898 | { |
39e16e51 KH |
1899 | val = XCHAR_TABLE (sub_table)->contents[code[i]]; |
1900 | if (SUB_CHAR_TABLE_P (val)) | |
1901 | sub_table = val; | |
1902 | else | |
8313c4e7 | 1903 | { |
39e16e51 KH |
1904 | if (NILP (val)) |
1905 | val = XCHAR_TABLE (sub_table)->defalt; | |
1906 | if (NILP (val)) | |
1907 | { | |
1908 | array = XCHAR_TABLE (array)->parent; | |
1909 | if (!NILP (array)) | |
1910 | goto try_parent_char_table; | |
1911 | } | |
1912 | return val; | |
8313c4e7 | 1913 | } |
4d276982 | 1914 | } |
39e16e51 KH |
1915 | /* Here, VAL is a sub char table. We try the default value |
1916 | and parent. */ | |
1917 | val = XCHAR_TABLE (val)->defalt; | |
8313c4e7 | 1918 | if (NILP (val)) |
4d276982 RS |
1919 | { |
1920 | array = XCHAR_TABLE (array)->parent; | |
39e16e51 KH |
1921 | if (!NILP (array)) |
1922 | goto try_parent_char_table; | |
4d276982 | 1923 | } |
4d276982 RS |
1924 | return val; |
1925 | } | |
4d276982 | 1926 | } |
7921925c | 1927 | else |
c24e4efe | 1928 | { |
6bbd7a29 | 1929 | int size = 0; |
7f358972 RS |
1930 | if (VECTORP (array)) |
1931 | size = XVECTOR (array)->size; | |
1932 | else if (COMPILEDP (array)) | |
1933 | size = XVECTOR (array)->size & PSEUDOVECTOR_SIZE_MASK; | |
1934 | else | |
1935 | wrong_type_argument (Qarrayp, array); | |
1936 | ||
1937 | if (idxval < 0 || idxval >= size) | |
c24e4efe KH |
1938 | args_out_of_range (array, idx); |
1939 | return XVECTOR (array)->contents[idxval]; | |
1940 | } | |
7921925c JB |
1941 | } |
1942 | ||
3c9de1af KH |
1943 | /* Don't use alloca for relocating string data larger than this, lest |
1944 | we overflow their stack. The value is the same as what used in | |
1945 | fns.c for base64 handling. */ | |
1946 | #define MAX_ALLOCA 16*1024 | |
1947 | ||
7921925c | 1948 | DEFUN ("aset", Faset, Saset, 3, 3, 0, |
8c1a1077 PJ |
1949 | doc: /* Store into the element of ARRAY at index IDX the value NEWELT. |
1950 | ARRAY may be a vector, a string, a char-table or a bool-vector. | |
1951 | IDX starts at 0. */) | |
1952 | (array, idx, newelt) | |
7921925c JB |
1953 | register Lisp_Object array; |
1954 | Lisp_Object idx, newelt; | |
1955 | { | |
1956 | register int idxval; | |
1957 | ||
b7826503 | 1958 | CHECK_NUMBER (idx); |
7921925c | 1959 | idxval = XINT (idx); |
4d276982 RS |
1960 | if (!VECTORP (array) && !STRINGP (array) && !BOOL_VECTOR_P (array) |
1961 | && ! CHAR_TABLE_P (array)) | |
7921925c | 1962 | array = wrong_type_argument (Qarrayp, array); |
7921925c JB |
1963 | CHECK_IMPURE (array); |
1964 | ||
e9ebc175 | 1965 | if (VECTORP (array)) |
c24e4efe KH |
1966 | { |
1967 | if (idxval < 0 || idxval >= XVECTOR (array)->size) | |
1968 | args_out_of_range (array, idx); | |
1969 | XVECTOR (array)->contents[idxval] = newelt; | |
1970 | } | |
4d276982 RS |
1971 | else if (BOOL_VECTOR_P (array)) |
1972 | { | |
1973 | int val; | |
4d276982 RS |
1974 | |
1975 | if (idxval < 0 || idxval >= XBOOL_VECTOR (array)->size) | |
1976 | args_out_of_range (array, idx); | |
1977 | ||
68be917d | 1978 | val = (unsigned char) XBOOL_VECTOR (array)->data[idxval / BITS_PER_CHAR]; |
4d276982 RS |
1979 | |
1980 | if (! NILP (newelt)) | |
68be917d | 1981 | val |= 1 << (idxval % BITS_PER_CHAR); |
4d276982 | 1982 | else |
68be917d KH |
1983 | val &= ~(1 << (idxval % BITS_PER_CHAR)); |
1984 | XBOOL_VECTOR (array)->data[idxval / BITS_PER_CHAR] = val; | |
4d276982 RS |
1985 | } |
1986 | else if (CHAR_TABLE_P (array)) | |
1987 | { | |
4d276982 RS |
1988 | if (idxval < 0) |
1989 | args_out_of_range (array, idx); | |
ab5c3f93 | 1990 | if (idxval < CHAR_TABLE_ORDINARY_SLOTS) |
8313c4e7 | 1991 | XCHAR_TABLE (array)->contents[idxval] = newelt; |
4d276982 RS |
1992 | else |
1993 | { | |
39e16e51 | 1994 | int code[4], i; |
8313c4e7 | 1995 | Lisp_Object val; |
4d276982 | 1996 | |
37309c9d | 1997 | SPLIT_CHAR (idxval, code[0], code[1], code[2]); |
e19c1eb4 KH |
1998 | if (code[1] < 32) code[1] = -1; |
1999 | else if (code[2] < 32) code[2] = -1; | |
2000 | ||
39e16e51 KH |
2001 | /* See the comment of the corresponding part in Faref. */ |
2002 | code[0] += 128; | |
2003 | code[3] = -1; /* anchor */ | |
2004 | for (i = 0; code[i + 1] >= 0; i++) | |
8313c4e7 | 2005 | { |
39e16e51 KH |
2006 | val = XCHAR_TABLE (array)->contents[code[i]]; |
2007 | if (SUB_CHAR_TABLE_P (val)) | |
8313c4e7 KH |
2008 | array = val; |
2009 | else | |
3c8fccc3 RS |
2010 | { |
2011 | Lisp_Object temp; | |
2012 | ||
2013 | /* VAL is a leaf. Create a sub char table with the | |
2014 | default value VAL or XCHAR_TABLE (array)->defalt | |
2015 | and look into it. */ | |
2016 | ||
2017 | temp = make_sub_char_table (NILP (val) | |
2018 | ? XCHAR_TABLE (array)->defalt | |
2019 | : val); | |
2020 | XCHAR_TABLE (array)->contents[code[i]] = temp; | |
2021 | array = temp; | |
2022 | } | |
8313c4e7 | 2023 | } |
39e16e51 | 2024 | XCHAR_TABLE (array)->contents[code[i]] = newelt; |
4d276982 | 2025 | } |
4d276982 | 2026 | } |
25638b07 RS |
2027 | else if (STRING_MULTIBYTE (array)) |
2028 | { | |
3c9de1af KH |
2029 | int idxval_byte, prev_bytes, new_bytes; |
2030 | unsigned char workbuf[MAX_MULTIBYTE_LENGTH], *p0 = workbuf, *p1; | |
25638b07 | 2031 | |
d5db4077 | 2032 | if (idxval < 0 || idxval >= SCHARS (array)) |
25638b07 | 2033 | args_out_of_range (array, idx); |
b7826503 | 2034 | CHECK_NUMBER (newelt); |
25638b07 RS |
2035 | |
2036 | idxval_byte = string_char_to_byte (array, idxval); | |
29f44a37 | 2037 | p1 = SDATA (array) + idxval_byte; |
3c9de1af KH |
2038 | PARSE_MULTIBYTE_SEQ (p1, nbytes - idxval_byte, prev_bytes); |
2039 | new_bytes = CHAR_STRING (XINT (newelt), p0); | |
2040 | if (prev_bytes != new_bytes) | |
2041 | { | |
2042 | /* We must relocate the string data. */ | |
d5db4077 KR |
2043 | int nchars = SCHARS (array); |
2044 | int nbytes = SBYTES (array); | |
3c9de1af KH |
2045 | unsigned char *str; |
2046 | ||
2047 | str = (nbytes <= MAX_ALLOCA | |
2048 | ? (unsigned char *) alloca (nbytes) | |
2049 | : (unsigned char *) xmalloc (nbytes)); | |
d5db4077 | 2050 | bcopy (SDATA (array), str, nbytes); |
3c9de1af KH |
2051 | allocate_string_data (XSTRING (array), nchars, |
2052 | nbytes + new_bytes - prev_bytes); | |
d5db4077 KR |
2053 | bcopy (str, SDATA (array), idxval_byte); |
2054 | p1 = SDATA (array) + idxval_byte; | |
3c9de1af KH |
2055 | bcopy (str + idxval_byte + prev_bytes, p1 + new_bytes, |
2056 | nbytes - (idxval_byte + prev_bytes)); | |
2057 | if (nbytes > MAX_ALLOCA) | |
2058 | xfree (str); | |
2059 | clear_string_char_byte_cache (); | |
2060 | } | |
2061 | while (new_bytes--) | |
2062 | *p1++ = *p0++; | |
25638b07 | 2063 | } |
7921925c JB |
2064 | else |
2065 | { | |
d5db4077 | 2066 | if (idxval < 0 || idxval >= SCHARS (array)) |
c24e4efe | 2067 | args_out_of_range (array, idx); |
b7826503 | 2068 | CHECK_NUMBER (newelt); |
3c9de1af KH |
2069 | |
2070 | if (XINT (newelt) < 0 || SINGLE_BYTE_CHAR_P (XINT (newelt))) | |
29f44a37 | 2071 | SSET (array, idxval, XINT (newelt)); |
3c9de1af KH |
2072 | else |
2073 | { | |
2074 | /* We must relocate the string data while converting it to | |
2075 | multibyte. */ | |
2076 | int idxval_byte, prev_bytes, new_bytes; | |
2077 | unsigned char workbuf[MAX_MULTIBYTE_LENGTH], *p0 = workbuf, *p1; | |
d5db4077 | 2078 | unsigned char *origstr = SDATA (array), *str; |
3c9de1af KH |
2079 | int nchars, nbytes; |
2080 | ||
d5db4077 | 2081 | nchars = SCHARS (array); |
3c9de1af KH |
2082 | nbytes = idxval_byte = count_size_as_multibyte (origstr, idxval); |
2083 | nbytes += count_size_as_multibyte (origstr + idxval, | |
2084 | nchars - idxval); | |
2085 | str = (nbytes <= MAX_ALLOCA | |
2086 | ? (unsigned char *) alloca (nbytes) | |
2087 | : (unsigned char *) xmalloc (nbytes)); | |
d5db4077 | 2088 | copy_text (SDATA (array), str, nchars, 0, 1); |
3c9de1af KH |
2089 | PARSE_MULTIBYTE_SEQ (str + idxval_byte, nbytes - idxval_byte, |
2090 | prev_bytes); | |
2091 | new_bytes = CHAR_STRING (XINT (newelt), p0); | |
2092 | allocate_string_data (XSTRING (array), nchars, | |
2093 | nbytes + new_bytes - prev_bytes); | |
d5db4077 KR |
2094 | bcopy (str, SDATA (array), idxval_byte); |
2095 | p1 = SDATA (array) + idxval_byte; | |
3c9de1af KH |
2096 | while (new_bytes--) |
2097 | *p1++ = *p0++; | |
2098 | bcopy (str + idxval_byte + prev_bytes, p1, | |
2099 | nbytes - (idxval_byte + prev_bytes)); | |
2100 | if (nbytes > MAX_ALLOCA) | |
2101 | xfree (str); | |
2102 | clear_string_char_byte_cache (); | |
2103 | } | |
7921925c JB |
2104 | } |
2105 | ||
2106 | return newelt; | |
2107 | } | |
7921925c JB |
2108 | \f |
2109 | /* Arithmetic functions */ | |
2110 | ||
2111 | enum comparison { equal, notequal, less, grtr, less_or_equal, grtr_or_equal }; | |
2112 | ||
2113 | Lisp_Object | |
2114 | arithcompare (num1, num2, comparison) | |
2115 | Lisp_Object num1, num2; | |
2116 | enum comparison comparison; | |
2117 | { | |
6bbd7a29 | 2118 | double f1 = 0, f2 = 0; |
7921925c JB |
2119 | int floatp = 0; |
2120 | ||
b7826503 PJ |
2121 | CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (num1); |
2122 | CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (num2); | |
7921925c | 2123 | |
e9ebc175 | 2124 | if (FLOATP (num1) || FLOATP (num2)) |
7921925c JB |
2125 | { |
2126 | floatp = 1; | |
7539e11f KR |
2127 | f1 = (FLOATP (num1)) ? XFLOAT_DATA (num1) : XINT (num1); |
2128 | f2 = (FLOATP (num2)) ? XFLOAT_DATA (num2) : XINT (num2); | |
7921925c | 2129 | } |
7921925c JB |
2130 | |
2131 | switch (comparison) | |
2132 | { | |
2133 | case equal: | |
2134 | if (floatp ? f1 == f2 : XINT (num1) == XINT (num2)) | |
2135 | return Qt; | |
2136 | return Qnil; | |
2137 | ||
2138 | case notequal: | |
2139 | if (floatp ? f1 != f2 : XINT (num1) != XINT (num2)) | |
2140 | return Qt; | |
2141 | return Qnil; | |
2142 | ||
2143 | case less: | |
2144 | if (floatp ? f1 < f2 : XINT (num1) < XINT (num2)) | |
2145 | return Qt; | |
2146 | return Qnil; | |
2147 | ||
2148 | case less_or_equal: | |
2149 | if (floatp ? f1 <= f2 : XINT (num1) <= XINT (num2)) | |
2150 | return Qt; | |
2151 | return Qnil; | |
2152 | ||
2153 | case grtr: | |
2154 | if (floatp ? f1 > f2 : XINT (num1) > XINT (num2)) | |
2155 | return Qt; | |
2156 | return Qnil; | |
2157 | ||
2158 | case grtr_or_equal: | |
2159 | if (floatp ? f1 >= f2 : XINT (num1) >= XINT (num2)) | |
2160 | return Qt; | |
2161 | return Qnil; | |
25e40a4b JB |
2162 | |
2163 | default: | |
2164 | abort (); | |
7921925c JB |
2165 | } |
2166 | } | |
2167 | ||
2168 | DEFUN ("=", Feqlsign, Seqlsign, 2, 2, 0, | |
8c1a1077 PJ |
2169 | doc: /* Return t if two args, both numbers or markers, are equal. */) |
2170 | (num1, num2) | |
7921925c JB |
2171 | register Lisp_Object num1, num2; |
2172 | { | |
2173 | return arithcompare (num1, num2, equal); | |
2174 | } | |
2175 | ||
2176 | DEFUN ("<", Flss, Slss, 2, 2, 0, | |
8c1a1077 PJ |
2177 | doc: /* Return t if first arg is less than second arg. Both must be numbers or markers. */) |
2178 | (num1, num2) | |
7921925c JB |
2179 | register Lisp_Object num1, num2; |
2180 | { | |
2181 | return arithcompare (num1, num2, less); | |
2182 | } | |
2183 | ||
2184 | DEFUN (">", Fgtr, Sgtr, 2, 2, 0, | |
8c1a1077 PJ |
2185 | doc: /* Return t if first arg is greater than second arg. Both must be numbers or markers. */) |
2186 | (num1, num2) | |
7921925c JB |
2187 | register Lisp_Object num1, num2; |
2188 | { | |
2189 | return arithcompare (num1, num2, grtr); | |
2190 | } | |
2191 | ||
2192 | DEFUN ("<=", Fleq, Sleq, 2, 2, 0, | |
8c1a1077 PJ |
2193 | doc: /* Return t if first arg is less than or equal to second arg. |
2194 | Both must be numbers or markers. */) | |
2195 | (num1, num2) | |
7921925c JB |
2196 | register Lisp_Object num1, num2; |
2197 | { | |
2198 | return arithcompare (num1, num2, less_or_equal); | |
2199 | } | |
2200 | ||
2201 | DEFUN (">=", Fgeq, Sgeq, 2, 2, 0, | |
8c1a1077 PJ |
2202 | doc: /* Return t if first arg is greater than or equal to second arg. |
2203 | Both must be numbers or markers. */) | |
2204 | (num1, num2) | |
7921925c JB |
2205 | register Lisp_Object num1, num2; |
2206 | { | |
2207 | return arithcompare (num1, num2, grtr_or_equal); | |
2208 | } | |
2209 | ||
2210 | DEFUN ("/=", Fneq, Sneq, 2, 2, 0, | |
8c1a1077 PJ |
2211 | doc: /* Return t if first arg is not equal to second arg. Both must be numbers or markers. */) |
2212 | (num1, num2) | |
7921925c JB |
2213 | register Lisp_Object num1, num2; |
2214 | { | |
2215 | return arithcompare (num1, num2, notequal); | |
2216 | } | |
2217 | ||
8c1a1077 PJ |
2218 | DEFUN ("zerop", Fzerop, Szerop, 1, 1, 0, |
2219 | doc: /* Return t if NUMBER is zero. */) | |
2220 | (number) | |
d9c2a0f2 | 2221 | register Lisp_Object number; |
7921925c | 2222 | { |
b7826503 | 2223 | CHECK_NUMBER_OR_FLOAT (number); |
7921925c | 2224 | |
d9c2a0f2 | 2225 | if (FLOATP (number)) |
7921925c | 2226 | { |
7539e11f | 2227 | if (XFLOAT_DATA (number) == 0.0) |
7921925c JB |
2228 | return Qt; |
2229 | return Qnil; | |
2230 | } | |
7921925c | 2231 | |
d9c2a0f2 | 2232 | if (!XINT (number)) |
7921925c JB |
2233 | return Qt; |
2234 | return Qnil; | |
2235 | } | |
2236 | \f | |
34f4f6c6 | 2237 | /* Convert between long values and pairs of Lisp integers. */ |
51cf3e31 JB |
2238 | |
2239 | Lisp_Object | |
2240 | long_to_cons (i) | |
2241 | unsigned long i; | |
2242 | { | |
2243 | unsigned int top = i >> 16; | |
2244 | unsigned int bot = i & 0xFFFF; | |
2245 | if (top == 0) | |
2246 | return make_number (bot); | |
b42cfa11 | 2247 | if (top == (unsigned long)-1 >> 16) |
51cf3e31 JB |
2248 | return Fcons (make_number (-1), make_number (bot)); |
2249 | return Fcons (make_number (top), make_number (bot)); | |
2250 | } | |
2251 | ||
2252 | unsigned long | |
2253 | cons_to_long (c) | |
2254 | Lisp_Object c; | |
2255 | { | |
878a80cc | 2256 | Lisp_Object top, bot; |
51cf3e31 JB |
2257 | if (INTEGERP (c)) |
2258 | return XINT (c); | |
7539e11f KR |
2259 | top = XCAR (c); |
2260 | bot = XCDR (c); | |
51cf3e31 | 2261 | if (CONSP (bot)) |
7539e11f | 2262 | bot = XCAR (bot); |
51cf3e31 JB |
2263 | return ((XINT (top) << 16) | XINT (bot)); |
2264 | } | |
2265 | \f | |
f2980264 | 2266 | DEFUN ("number-to-string", Fnumber_to_string, Snumber_to_string, 1, 1, 0, |
8c1a1077 PJ |
2267 | doc: /* Convert NUMBER to a string by printing it in decimal. |
2268 | Uses a minus sign if negative. | |
2269 | NUMBER may be an integer or a floating point number. */) | |
2270 | (number) | |
d9c2a0f2 | 2271 | Lisp_Object number; |
7921925c | 2272 | { |
6030ce64 | 2273 | char buffer[VALBITS]; |
7921925c | 2274 | |
b7826503 | 2275 | CHECK_NUMBER_OR_FLOAT (number); |
7921925c | 2276 | |
d9c2a0f2 | 2277 | if (FLOATP (number)) |
7921925c JB |
2278 | { |
2279 | char pigbuf[350]; /* see comments in float_to_string */ | |
2280 | ||
7539e11f | 2281 | float_to_string (pigbuf, XFLOAT_DATA (number)); |
7403b5c8 | 2282 | return build_string (pigbuf); |
7921925c | 2283 | } |
7921925c | 2284 | |
e6c82a8d | 2285 | if (sizeof (int) == sizeof (EMACS_INT)) |
d9c2a0f2 | 2286 | sprintf (buffer, "%d", XINT (number)); |
e6c82a8d | 2287 | else if (sizeof (long) == sizeof (EMACS_INT)) |
dd8daec5 | 2288 | sprintf (buffer, "%ld", (long) XINT (number)); |
e6c82a8d RS |
2289 | else |
2290 | abort (); | |
7921925c JB |
2291 | return build_string (buffer); |
2292 | } | |
2293 | ||
3883fbeb RS |
2294 | INLINE static int |
2295 | digit_to_number (character, base) | |
2296 | int character, base; | |
2297 | { | |
2298 | int digit; | |
2299 | ||
2300 | if (character >= '0' && character <= '9') | |
2301 | digit = character - '0'; | |
2302 | else if (character >= 'a' && character <= 'z') | |
2303 | digit = character - 'a' + 10; | |
2304 | else if (character >= 'A' && character <= 'Z') | |
2305 | digit = character - 'A' + 10; | |
2306 | else | |
2307 | return -1; | |
2308 | ||
2309 | if (digit >= base) | |
2310 | return -1; | |
2311 | else | |
2312 | return digit; | |
2313 | } | |
2314 | ||
2315 | DEFUN ("string-to-number", Fstring_to_number, Sstring_to_number, 1, 2, 0, | |
8c1a1077 PJ |
2316 | doc: /* Convert STRING to a number by parsing it as a decimal number. |
2317 | This parses both integers and floating point numbers. | |
2318 | It ignores leading spaces and tabs. | |
2319 | ||
2320 | If BASE, interpret STRING as a number in that base. If BASE isn't | |
2321 | present, base 10 is used. BASE must be between 2 and 16 (inclusive). | |
2322 | If the base used is not 10, floating point is not recognized. */) | |
2323 | (string, base) | |
3883fbeb | 2324 | register Lisp_Object string, base; |
7921925c | 2325 | { |
3883fbeb | 2326 | register unsigned char *p; |
342858a5 GM |
2327 | register int b; |
2328 | int sign = 1; | |
2329 | Lisp_Object val; | |
25e40a4b | 2330 | |
b7826503 | 2331 | CHECK_STRING (string); |
7921925c | 2332 | |
3883fbeb RS |
2333 | if (NILP (base)) |
2334 | b = 10; | |
2335 | else | |
2336 | { | |
b7826503 | 2337 | CHECK_NUMBER (base); |
3883fbeb RS |
2338 | b = XINT (base); |
2339 | if (b < 2 || b > 16) | |
2340 | Fsignal (Qargs_out_of_range, Fcons (base, Qnil)); | |
2341 | } | |
2342 | ||
25e40a4b JB |
2343 | /* Skip any whitespace at the front of the number. Some versions of |
2344 | atoi do this anyway, so we might as well make Emacs lisp consistent. */ | |
d5db4077 | 2345 | p = SDATA (string); |
0a3e4d65 | 2346 | while (*p == ' ' || *p == '\t') |
25e40a4b JB |
2347 | p++; |
2348 | ||
3883fbeb RS |
2349 | if (*p == '-') |
2350 | { | |
342858a5 | 2351 | sign = -1; |
3883fbeb RS |
2352 | p++; |
2353 | } | |
2354 | else if (*p == '+') | |
2355 | p++; | |
2356 | ||
8e36ae7f | 2357 | if (isfloat_string (p) && b == 10) |
342858a5 GM |
2358 | val = make_float (sign * atof (p)); |
2359 | else | |
3883fbeb | 2360 | { |
342858a5 GM |
2361 | double v = 0; |
2362 | ||
2363 | while (1) | |
2364 | { | |
2365 | int digit = digit_to_number (*p++, b); | |
2366 | if (digit < 0) | |
2367 | break; | |
2368 | v = v * b + digit; | |
2369 | } | |
2370 | ||
cb938d46 | 2371 | val = make_fixnum_or_float (sign * v); |
3883fbeb | 2372 | } |
342858a5 GM |
2373 | |
2374 | return val; | |
7921925c | 2375 | } |
3883fbeb | 2376 | |
7403b5c8 | 2377 | \f |
7921925c | 2378 | enum arithop |
7a283f36 GM |
2379 | { |
2380 | Aadd, | |
2381 | Asub, | |
2382 | Amult, | |
2383 | Adiv, | |
2384 | Alogand, | |
2385 | Alogior, | |
2386 | Alogxor, | |
2387 | Amax, | |
2388 | Amin | |
2389 | }; | |
2390 | ||
2391 | static Lisp_Object float_arith_driver P_ ((double, int, enum arithop, | |
2392 | int, Lisp_Object *)); | |
ad8d56b9 | 2393 | extern Lisp_Object fmod_float (); |
b06faa91 | 2394 | |
7921925c | 2395 | Lisp_Object |
87fbf902 | 2396 | arith_driver (code, nargs, args) |
7921925c JB |
2397 | enum arithop code; |
2398 | int nargs; | |
2399 | register Lisp_Object *args; | |
2400 | { | |
2401 | register Lisp_Object val; | |
2402 | register int argnum; | |
7a283f36 | 2403 | register EMACS_INT accum = 0; |
5260234d | 2404 | register EMACS_INT next; |
7921925c | 2405 | |
0220c518 | 2406 | switch (SWITCH_ENUM_CAST (code)) |
7921925c JB |
2407 | { |
2408 | case Alogior: | |
2409 | case Alogxor: | |
2410 | case Aadd: | |
2411 | case Asub: | |
7a283f36 GM |
2412 | accum = 0; |
2413 | break; | |
7921925c | 2414 | case Amult: |
7a283f36 GM |
2415 | accum = 1; |
2416 | break; | |
7921925c | 2417 | case Alogand: |
7a283f36 GM |
2418 | accum = -1; |
2419 | break; | |
2420 | default: | |
2421 | break; | |
7921925c JB |
2422 | } |
2423 | ||
2424 | for (argnum = 0; argnum < nargs; argnum++) | |
2425 | { | |
7a283f36 GM |
2426 | /* Using args[argnum] as argument to CHECK_NUMBER_... */ |
2427 | val = args[argnum]; | |
b7826503 | 2428 | CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (val); |
7921925c | 2429 | |
7a283f36 GM |
2430 | if (FLOATP (val)) |
2431 | return float_arith_driver ((double) accum, argnum, code, | |
2432 | nargs, args); | |
2433 | args[argnum] = val; | |
7921925c | 2434 | next = XINT (args[argnum]); |
0220c518 | 2435 | switch (SWITCH_ENUM_CAST (code)) |
7921925c | 2436 | { |
7a283f36 GM |
2437 | case Aadd: |
2438 | accum += next; | |
2439 | break; | |
7921925c | 2440 | case Asub: |
e64981da | 2441 | accum = argnum ? accum - next : nargs == 1 ? - next : next; |
7921925c | 2442 | break; |
7a283f36 GM |
2443 | case Amult: |
2444 | accum *= next; | |
2445 | break; | |
7921925c | 2446 | case Adiv: |
7a283f36 GM |
2447 | if (!argnum) |
2448 | accum = next; | |
87fbf902 RS |
2449 | else |
2450 | { | |
2451 | if (next == 0) | |
2452 | Fsignal (Qarith_error, Qnil); | |
2453 | accum /= next; | |
2454 | } | |
7921925c | 2455 | break; |
7a283f36 GM |
2456 | case Alogand: |
2457 | accum &= next; | |
2458 | break; | |
2459 | case Alogior: | |
2460 | accum |= next; | |
2461 | break; | |
2462 | case Alogxor: | |
2463 | accum ^= next; | |
2464 | break; | |
2465 | case Amax: | |
2466 | if (!argnum || next > accum) | |
2467 | accum = next; | |
2468 | break; | |
2469 | case Amin: | |
2470 | if (!argnum || next < accum) | |
2471 | accum = next; | |
2472 | break; | |
7921925c JB |
2473 | } |
2474 | } | |
2475 | ||
f187f1f7 | 2476 | XSETINT (val, accum); |
7921925c JB |
2477 | return val; |
2478 | } | |
2479 | ||
1a2f2d33 KH |
2480 | #undef isnan |
2481 | #define isnan(x) ((x) != (x)) | |
2482 | ||
7a283f36 | 2483 | static Lisp_Object |
7921925c JB |
2484 | float_arith_driver (accum, argnum, code, nargs, args) |
2485 | double accum; | |
2486 | register int argnum; | |
2487 | enum arithop code; | |
2488 | int nargs; | |
2489 | register Lisp_Object *args; | |
2490 | { | |
2491 | register Lisp_Object val; | |
2492 | double next; | |
7403b5c8 | 2493 | |
7921925c JB |
2494 | for (; argnum < nargs; argnum++) |
2495 | { | |
2496 | val = args[argnum]; /* using args[argnum] as argument to CHECK_NUMBER_... */ | |
b7826503 | 2497 | CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (val); |
7921925c | 2498 | |
e9ebc175 | 2499 | if (FLOATP (val)) |
7921925c | 2500 | { |
7539e11f | 2501 | next = XFLOAT_DATA (val); |
7921925c JB |
2502 | } |
2503 | else | |
2504 | { | |
2505 | args[argnum] = val; /* runs into a compiler bug. */ | |
2506 | next = XINT (args[argnum]); | |
2507 | } | |
0220c518 | 2508 | switch (SWITCH_ENUM_CAST (code)) |
7921925c JB |
2509 | { |
2510 | case Aadd: | |
2511 | accum += next; | |
2512 | break; | |
2513 | case Asub: | |
e64981da | 2514 | accum = argnum ? accum - next : nargs == 1 ? - next : next; |
7921925c JB |
2515 | break; |
2516 | case Amult: | |
2517 | accum *= next; | |
2518 | break; | |
2519 | case Adiv: | |
2520 | if (!argnum) | |
2521 | accum = next; | |
2522 | else | |
87fbf902 | 2523 | { |
ad8d56b9 | 2524 | if (! IEEE_FLOATING_POINT && next == 0) |
87fbf902 RS |
2525 | Fsignal (Qarith_error, Qnil); |
2526 | accum /= next; | |
2527 | } | |
7921925c JB |
2528 | break; |
2529 | case Alogand: | |
2530 | case Alogior: | |
2531 | case Alogxor: | |
2532 | return wrong_type_argument (Qinteger_or_marker_p, val); | |
2533 | case Amax: | |
1a2f2d33 | 2534 | if (!argnum || isnan (next) || next > accum) |
7921925c JB |
2535 | accum = next; |
2536 | break; | |
2537 | case Amin: | |
1a2f2d33 | 2538 | if (!argnum || isnan (next) || next < accum) |
7921925c JB |
2539 | accum = next; |
2540 | break; | |
2541 | } | |
2542 | } | |
2543 | ||
2544 | return make_float (accum); | |
2545 | } | |
cc94f3b2 | 2546 | |
7921925c JB |
2547 | |
2548 | DEFUN ("+", Fplus, Splus, 0, MANY, 0, | |
8c1a1077 PJ |
2549 | doc: /* Return sum of any number of arguments, which are numbers or markers. |
2550 | usage: (+ &rest NUMBERS-OR-MARKERS) */) | |
2551 | (nargs, args) | |
7921925c JB |
2552 | int nargs; |
2553 | Lisp_Object *args; | |
2554 | { | |
2555 | return arith_driver (Aadd, nargs, args); | |
2556 | } | |
2557 | ||
2558 | DEFUN ("-", Fminus, Sminus, 0, MANY, 0, | |
8c1a1077 PJ |
2559 | doc: /* Negate number or subtract numbers or markers. |
2560 | With one arg, negates it. With more than one arg, | |
f44fba9e | 2561 | subtracts all but the first from the first. |
8c1a1077 PJ |
2562 | usage: (- &optional NUMBER-OR-MARKER &rest MORE-NUMBERS-OR-MARKERS) */) |
2563 | (nargs, args) | |
7921925c JB |
2564 | int nargs; |
2565 | Lisp_Object *args; | |
2566 | { | |
2567 | return arith_driver (Asub, nargs, args); | |
2568 | } | |
2569 | ||
2570 | DEFUN ("*", Ftimes, Stimes, 0, MANY, 0, | |
be24eadf | 2571 | doc: /* Return product of any number of arguments, which are numbers or markers. |
8c1a1077 PJ |
2572 | usage: (* &rest NUMBERS-OR-MARKERS) */) |
2573 | (nargs, args) | |
7921925c JB |
2574 | int nargs; |
2575 | Lisp_Object *args; | |
2576 | { | |
2577 | return arith_driver (Amult, nargs, args); | |
2578 | } | |
2579 | ||
2580 | DEFUN ("/", Fquo, Squo, 2, MANY, 0, | |
be24eadf | 2581 | doc: /* Return first argument divided by all the remaining arguments. |
f44fba9e | 2582 | The arguments must be numbers or markers. |
8c1a1077 PJ |
2583 | usage: (/ DIVIDEND DIVISOR &rest DIVISORS) */) |
2584 | (nargs, args) | |
7921925c JB |
2585 | int nargs; |
2586 | Lisp_Object *args; | |
2587 | { | |
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) |
87fbf902 RS |
2603 | Fsignal (Qarith_error, Qnil); |
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) | |
2652 | Fsignal (Qarith_error, Qnil); | |
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. |
8c1a1077 PJ |
2711 | usage: (logxor &rest INTS-OR-MARKERS) */) |
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 JB |
2803 | } |
2804 | \f | |
2805 | void | |
2806 | syms_of_data () | |
2807 | { | |
6315e761 RS |
2808 | Lisp_Object error_tail, arith_tail; |
2809 | ||
7921925c JB |
2810 | Qquote = intern ("quote"); |
2811 | Qlambda = intern ("lambda"); | |
2812 | Qsubr = intern ("subr"); | |
2813 | Qerror_conditions = intern ("error-conditions"); | |
2814 | Qerror_message = intern ("error-message"); | |
2815 | Qtop_level = intern ("top-level"); | |
2816 | ||
2817 | Qerror = intern ("error"); | |
2818 | Qquit = intern ("quit"); | |
2819 | Qwrong_type_argument = intern ("wrong-type-argument"); | |
2820 | Qargs_out_of_range = intern ("args-out-of-range"); | |
2821 | Qvoid_function = intern ("void-function"); | |
ffd56f97 | 2822 | Qcyclic_function_indirection = intern ("cyclic-function-indirection"); |
f35d5bad | 2823 | Qcyclic_variable_indirection = intern ("cyclic-variable-indirection"); |
7921925c JB |
2824 | Qvoid_variable = intern ("void-variable"); |
2825 | Qsetting_constant = intern ("setting-constant"); | |
2826 | Qinvalid_read_syntax = intern ("invalid-read-syntax"); | |
2827 | ||
2828 | Qinvalid_function = intern ("invalid-function"); | |
2829 | Qwrong_number_of_arguments = intern ("wrong-number-of-arguments"); | |
2830 | Qno_catch = intern ("no-catch"); | |
2831 | Qend_of_file = intern ("end-of-file"); | |
2832 | Qarith_error = intern ("arith-error"); | |
2833 | Qbeginning_of_buffer = intern ("beginning-of-buffer"); | |
2834 | Qend_of_buffer = intern ("end-of-buffer"); | |
2835 | Qbuffer_read_only = intern ("buffer-read-only"); | |
8f9f49d7 | 2836 | Qtext_read_only = intern ("text-read-only"); |
3b8819d6 | 2837 | Qmark_inactive = intern ("mark-inactive"); |
7921925c JB |
2838 | |
2839 | Qlistp = intern ("listp"); | |
2840 | Qconsp = intern ("consp"); | |
2841 | Qsymbolp = intern ("symbolp"); | |
cda9b832 | 2842 | Qkeywordp = intern ("keywordp"); |
7921925c JB |
2843 | Qintegerp = intern ("integerp"); |
2844 | Qnatnump = intern ("natnump"); | |
8e86942b | 2845 | Qwholenump = intern ("wholenump"); |
7921925c JB |
2846 | Qstringp = intern ("stringp"); |
2847 | Qarrayp = intern ("arrayp"); | |
2848 | Qsequencep = intern ("sequencep"); | |
2849 | Qbufferp = intern ("bufferp"); | |
2850 | Qvectorp = intern ("vectorp"); | |
2851 | Qchar_or_string_p = intern ("char-or-string-p"); | |
2852 | Qmarkerp = intern ("markerp"); | |
07bd8472 | 2853 | Qbuffer_or_string_p = intern ("buffer-or-string-p"); |
7921925c JB |
2854 | Qinteger_or_marker_p = intern ("integer-or-marker-p"); |
2855 | Qboundp = intern ("boundp"); | |
2856 | Qfboundp = intern ("fboundp"); | |
2857 | ||
7921925c JB |
2858 | Qfloatp = intern ("floatp"); |
2859 | Qnumberp = intern ("numberp"); | |
2860 | Qnumber_or_marker_p = intern ("number-or-marker-p"); | |
7921925c | 2861 | |
4d276982 | 2862 | Qchar_table_p = intern ("char-table-p"); |
7f0edce7 | 2863 | Qvector_or_char_table_p = intern ("vector-or-char-table-p"); |
4d276982 | 2864 | |
6f0e897f DL |
2865 | Qsubrp = intern ("subrp"); |
2866 | Qunevalled = intern ("unevalled"); | |
2867 | Qmany = intern ("many"); | |
2868 | ||
7921925c JB |
2869 | Qcdr = intern ("cdr"); |
2870 | ||
f845f2c9 | 2871 | /* Handle automatic advice activation */ |
ab297811 | 2872 | Qad_advice_info = intern ("ad-advice-info"); |
c1307a23 | 2873 | Qad_activate_internal = intern ("ad-activate-internal"); |
f845f2c9 | 2874 | |
6315e761 RS |
2875 | error_tail = Fcons (Qerror, Qnil); |
2876 | ||
7921925c JB |
2877 | /* ERROR is used as a signaler for random errors for which nothing else is right */ |
2878 | ||
2879 | Fput (Qerror, Qerror_conditions, | |
6315e761 | 2880 | error_tail); |
7921925c JB |
2881 | Fput (Qerror, Qerror_message, |
2882 | build_string ("error")); | |
2883 | ||
2884 | Fput (Qquit, Qerror_conditions, | |
2885 | Fcons (Qquit, Qnil)); | |
2886 | Fput (Qquit, Qerror_message, | |
2887 | build_string ("Quit")); | |
2888 | ||
2889 | Fput (Qwrong_type_argument, Qerror_conditions, | |
6315e761 | 2890 | Fcons (Qwrong_type_argument, error_tail)); |
7921925c JB |
2891 | Fput (Qwrong_type_argument, Qerror_message, |
2892 | build_string ("Wrong type argument")); | |
2893 | ||
2894 | Fput (Qargs_out_of_range, Qerror_conditions, | |
6315e761 | 2895 | Fcons (Qargs_out_of_range, error_tail)); |
7921925c JB |
2896 | Fput (Qargs_out_of_range, Qerror_message, |
2897 | build_string ("Args out of range")); | |
2898 | ||
2899 | Fput (Qvoid_function, Qerror_conditions, | |
6315e761 | 2900 | Fcons (Qvoid_function, error_tail)); |
7921925c JB |
2901 | Fput (Qvoid_function, Qerror_message, |
2902 | build_string ("Symbol's function definition is void")); | |
2903 | ||
ffd56f97 | 2904 | Fput (Qcyclic_function_indirection, Qerror_conditions, |
6315e761 | 2905 | Fcons (Qcyclic_function_indirection, error_tail)); |
ffd56f97 JB |
2906 | Fput (Qcyclic_function_indirection, Qerror_message, |
2907 | build_string ("Symbol's chain of function indirections contains a loop")); | |
2908 | ||
f35d5bad GM |
2909 | Fput (Qcyclic_variable_indirection, Qerror_conditions, |
2910 | Fcons (Qcyclic_variable_indirection, error_tail)); | |
2911 | Fput (Qcyclic_variable_indirection, Qerror_message, | |
2912 | build_string ("Symbol's chain of variable indirections contains a loop")); | |
2913 | ||
13d95cc0 GM |
2914 | Qcircular_list = intern ("circular-list"); |
2915 | staticpro (&Qcircular_list); | |
2916 | Fput (Qcircular_list, Qerror_conditions, | |
2917 | Fcons (Qcircular_list, error_tail)); | |
2918 | Fput (Qcircular_list, Qerror_message, | |
2919 | build_string ("List contains a loop")); | |
2920 | ||
7921925c | 2921 | Fput (Qvoid_variable, Qerror_conditions, |
6315e761 | 2922 | Fcons (Qvoid_variable, error_tail)); |
7921925c JB |
2923 | Fput (Qvoid_variable, Qerror_message, |
2924 | build_string ("Symbol's value as variable is void")); | |
2925 | ||
2926 | Fput (Qsetting_constant, Qerror_conditions, | |
6315e761 | 2927 | Fcons (Qsetting_constant, error_tail)); |
7921925c JB |
2928 | Fput (Qsetting_constant, Qerror_message, |
2929 | build_string ("Attempt to set a constant symbol")); | |
2930 | ||
2931 | Fput (Qinvalid_read_syntax, Qerror_conditions, | |
6315e761 | 2932 | Fcons (Qinvalid_read_syntax, error_tail)); |
7921925c JB |
2933 | Fput (Qinvalid_read_syntax, Qerror_message, |
2934 | build_string ("Invalid read syntax")); | |
2935 | ||
2936 | Fput (Qinvalid_function, Qerror_conditions, | |
6315e761 | 2937 | Fcons (Qinvalid_function, error_tail)); |
7921925c JB |
2938 | Fput (Qinvalid_function, Qerror_message, |
2939 | build_string ("Invalid function")); | |
2940 | ||
2941 | Fput (Qwrong_number_of_arguments, Qerror_conditions, | |
6315e761 | 2942 | Fcons (Qwrong_number_of_arguments, error_tail)); |
7921925c JB |
2943 | Fput (Qwrong_number_of_arguments, Qerror_message, |
2944 | build_string ("Wrong number of arguments")); | |
2945 | ||
2946 | Fput (Qno_catch, Qerror_conditions, | |
6315e761 | 2947 | Fcons (Qno_catch, error_tail)); |
7921925c JB |
2948 | Fput (Qno_catch, Qerror_message, |
2949 | build_string ("No catch for tag")); | |
2950 | ||
2951 | Fput (Qend_of_file, Qerror_conditions, | |
6315e761 | 2952 | Fcons (Qend_of_file, error_tail)); |
7921925c JB |
2953 | Fput (Qend_of_file, Qerror_message, |
2954 | build_string ("End of file during parsing")); | |
2955 | ||
6315e761 | 2956 | arith_tail = Fcons (Qarith_error, error_tail); |
7921925c | 2957 | Fput (Qarith_error, Qerror_conditions, |
6315e761 | 2958 | arith_tail); |
7921925c JB |
2959 | Fput (Qarith_error, Qerror_message, |
2960 | build_string ("Arithmetic error")); | |
2961 | ||
2962 | Fput (Qbeginning_of_buffer, Qerror_conditions, | |
6315e761 | 2963 | Fcons (Qbeginning_of_buffer, error_tail)); |
7921925c JB |
2964 | Fput (Qbeginning_of_buffer, Qerror_message, |
2965 | build_string ("Beginning of buffer")); | |
2966 | ||
2967 | Fput (Qend_of_buffer, Qerror_conditions, | |
6315e761 | 2968 | Fcons (Qend_of_buffer, error_tail)); |
7921925c JB |
2969 | Fput (Qend_of_buffer, Qerror_message, |
2970 | build_string ("End of buffer")); | |
2971 | ||
2972 | Fput (Qbuffer_read_only, Qerror_conditions, | |
6315e761 | 2973 | Fcons (Qbuffer_read_only, error_tail)); |
7921925c JB |
2974 | Fput (Qbuffer_read_only, Qerror_message, |
2975 | build_string ("Buffer is read-only")); | |
2976 | ||
8f9f49d7 GM |
2977 | Fput (Qtext_read_only, Qerror_conditions, |
2978 | Fcons (Qtext_read_only, error_tail)); | |
2979 | Fput (Qtext_read_only, Qerror_message, | |
2980 | build_string ("Text is read-only")); | |
2981 | ||
6315e761 RS |
2982 | Qrange_error = intern ("range-error"); |
2983 | Qdomain_error = intern ("domain-error"); | |
2984 | Qsingularity_error = intern ("singularity-error"); | |
2985 | Qoverflow_error = intern ("overflow-error"); | |
2986 | Qunderflow_error = intern ("underflow-error"); | |
2987 | ||
2988 | Fput (Qdomain_error, Qerror_conditions, | |
2989 | Fcons (Qdomain_error, arith_tail)); | |
2990 | Fput (Qdomain_error, Qerror_message, | |
2991 | build_string ("Arithmetic domain error")); | |
2992 | ||
2993 | Fput (Qrange_error, Qerror_conditions, | |
2994 | Fcons (Qrange_error, arith_tail)); | |
2995 | Fput (Qrange_error, Qerror_message, | |
2996 | build_string ("Arithmetic range error")); | |
2997 | ||
2998 | Fput (Qsingularity_error, Qerror_conditions, | |
2999 | Fcons (Qsingularity_error, Fcons (Qdomain_error, arith_tail))); | |
3000 | Fput (Qsingularity_error, Qerror_message, | |
3001 | build_string ("Arithmetic singularity error")); | |
3002 | ||
3003 | Fput (Qoverflow_error, Qerror_conditions, | |
3004 | Fcons (Qoverflow_error, Fcons (Qdomain_error, arith_tail))); | |
3005 | Fput (Qoverflow_error, Qerror_message, | |
3006 | build_string ("Arithmetic overflow error")); | |
3007 | ||
3008 | Fput (Qunderflow_error, Qerror_conditions, | |
3009 | Fcons (Qunderflow_error, Fcons (Qdomain_error, arith_tail))); | |
3010 | Fput (Qunderflow_error, Qerror_message, | |
3011 | build_string ("Arithmetic underflow error")); | |
3012 | ||
3013 | staticpro (&Qrange_error); | |
3014 | staticpro (&Qdomain_error); | |
3015 | staticpro (&Qsingularity_error); | |
3016 | staticpro (&Qoverflow_error); | |
3017 | staticpro (&Qunderflow_error); | |
6315e761 | 3018 | |
7921925c JB |
3019 | staticpro (&Qnil); |
3020 | staticpro (&Qt); | |
3021 | staticpro (&Qquote); | |
3022 | staticpro (&Qlambda); | |
3023 | staticpro (&Qsubr); | |
3024 | staticpro (&Qunbound); | |
3025 | staticpro (&Qerror_conditions); | |
3026 | staticpro (&Qerror_message); | |
3027 | staticpro (&Qtop_level); | |
3028 | ||
3029 | staticpro (&Qerror); | |
3030 | staticpro (&Qquit); | |
3031 | staticpro (&Qwrong_type_argument); | |
3032 | staticpro (&Qargs_out_of_range); | |
3033 | staticpro (&Qvoid_function); | |
ffd56f97 | 3034 | staticpro (&Qcyclic_function_indirection); |
7921925c JB |
3035 | staticpro (&Qvoid_variable); |
3036 | staticpro (&Qsetting_constant); | |
3037 | staticpro (&Qinvalid_read_syntax); | |
3038 | staticpro (&Qwrong_number_of_arguments); | |
3039 | staticpro (&Qinvalid_function); | |
3040 | staticpro (&Qno_catch); | |
3041 | staticpro (&Qend_of_file); | |
3042 | staticpro (&Qarith_error); | |
3043 | staticpro (&Qbeginning_of_buffer); | |
3044 | staticpro (&Qend_of_buffer); | |
3045 | staticpro (&Qbuffer_read_only); | |
8f9f49d7 | 3046 | staticpro (&Qtext_read_only); |
638b77e6 | 3047 | staticpro (&Qmark_inactive); |
7921925c JB |
3048 | |
3049 | staticpro (&Qlistp); | |
3050 | staticpro (&Qconsp); | |
3051 | staticpro (&Qsymbolp); | |
cda9b832 | 3052 | staticpro (&Qkeywordp); |
7921925c JB |
3053 | staticpro (&Qintegerp); |
3054 | staticpro (&Qnatnump); | |
8e86942b | 3055 | staticpro (&Qwholenump); |
7921925c JB |
3056 | staticpro (&Qstringp); |
3057 | staticpro (&Qarrayp); | |
3058 | staticpro (&Qsequencep); | |
3059 | staticpro (&Qbufferp); | |
3060 | staticpro (&Qvectorp); | |
3061 | staticpro (&Qchar_or_string_p); | |
3062 | staticpro (&Qmarkerp); | |
07bd8472 | 3063 | staticpro (&Qbuffer_or_string_p); |
7921925c | 3064 | staticpro (&Qinteger_or_marker_p); |
7921925c | 3065 | staticpro (&Qfloatp); |
464f8898 RS |
3066 | staticpro (&Qnumberp); |
3067 | staticpro (&Qnumber_or_marker_p); | |
4d276982 | 3068 | staticpro (&Qchar_table_p); |
7f0edce7 | 3069 | staticpro (&Qvector_or_char_table_p); |
6f0e897f DL |
3070 | staticpro (&Qsubrp); |
3071 | staticpro (&Qmany); | |
3072 | staticpro (&Qunevalled); | |
7921925c JB |
3073 | |
3074 | staticpro (&Qboundp); | |
3075 | staticpro (&Qfboundp); | |
3076 | staticpro (&Qcdr); | |
ab297811 | 3077 | staticpro (&Qad_advice_info); |
c1307a23 | 3078 | staticpro (&Qad_activate_internal); |
7921925c | 3079 | |
39bcc759 RS |
3080 | /* Types that type-of returns. */ |
3081 | Qinteger = intern ("integer"); | |
3082 | Qsymbol = intern ("symbol"); | |
3083 | Qstring = intern ("string"); | |
3084 | Qcons = intern ("cons"); | |
3085 | Qmarker = intern ("marker"); | |
3086 | Qoverlay = intern ("overlay"); | |
3087 | Qfloat = intern ("float"); | |
3088 | Qwindow_configuration = intern ("window-configuration"); | |
3089 | Qprocess = intern ("process"); | |
3090 | Qwindow = intern ("window"); | |
3091 | /* Qsubr = intern ("subr"); */ | |
3092 | Qcompiled_function = intern ("compiled-function"); | |
3093 | Qbuffer = intern ("buffer"); | |
3094 | Qframe = intern ("frame"); | |
3095 | Qvector = intern ("vector"); | |
fc67d5be KH |
3096 | Qchar_table = intern ("char-table"); |
3097 | Qbool_vector = intern ("bool-vector"); | |
81dc5de5 | 3098 | Qhash_table = intern ("hash-table"); |
39bcc759 RS |
3099 | |
3100 | staticpro (&Qinteger); | |
3101 | staticpro (&Qsymbol); | |
3102 | staticpro (&Qstring); | |
3103 | staticpro (&Qcons); | |
3104 | staticpro (&Qmarker); | |
3105 | staticpro (&Qoverlay); | |
3106 | staticpro (&Qfloat); | |
3107 | staticpro (&Qwindow_configuration); | |
3108 | staticpro (&Qprocess); | |
3109 | staticpro (&Qwindow); | |
3110 | /* staticpro (&Qsubr); */ | |
3111 | staticpro (&Qcompiled_function); | |
3112 | staticpro (&Qbuffer); | |
3113 | staticpro (&Qframe); | |
3114 | staticpro (&Qvector); | |
fc67d5be KH |
3115 | staticpro (&Qchar_table); |
3116 | staticpro (&Qbool_vector); | |
81dc5de5 | 3117 | staticpro (&Qhash_table); |
39bcc759 | 3118 | |
f35d5bad | 3119 | defsubr (&Sindirect_variable); |
cc515226 | 3120 | defsubr (&Ssubr_interactive_form); |
7921925c JB |
3121 | defsubr (&Seq); |
3122 | defsubr (&Snull); | |
39bcc759 | 3123 | defsubr (&Stype_of); |
7921925c JB |
3124 | defsubr (&Slistp); |
3125 | defsubr (&Snlistp); | |
3126 | defsubr (&Sconsp); | |
3127 | defsubr (&Satom); | |
3128 | defsubr (&Sintegerp); | |
464f8898 | 3129 | defsubr (&Sinteger_or_marker_p); |
7921925c JB |
3130 | defsubr (&Snumberp); |
3131 | defsubr (&Snumber_or_marker_p); | |
464f8898 | 3132 | defsubr (&Sfloatp); |
7921925c JB |
3133 | defsubr (&Snatnump); |
3134 | defsubr (&Ssymbolp); | |
cda9b832 | 3135 | defsubr (&Skeywordp); |
7921925c | 3136 | defsubr (&Sstringp); |
0f56470d | 3137 | defsubr (&Smultibyte_string_p); |
7921925c | 3138 | defsubr (&Svectorp); |
4d276982 | 3139 | defsubr (&Schar_table_p); |
7f0edce7 | 3140 | defsubr (&Svector_or_char_table_p); |
4d276982 | 3141 | defsubr (&Sbool_vector_p); |
7921925c JB |
3142 | defsubr (&Sarrayp); |
3143 | defsubr (&Ssequencep); | |
3144 | defsubr (&Sbufferp); | |
3145 | defsubr (&Smarkerp); | |
7921925c | 3146 | defsubr (&Ssubrp); |
dbc4e1c1 | 3147 | defsubr (&Sbyte_code_function_p); |
7921925c JB |
3148 | defsubr (&Schar_or_string_p); |
3149 | defsubr (&Scar); | |
3150 | defsubr (&Scdr); | |
3151 | defsubr (&Scar_safe); | |
3152 | defsubr (&Scdr_safe); | |
3153 | defsubr (&Ssetcar); | |
3154 | defsubr (&Ssetcdr); | |
3155 | defsubr (&Ssymbol_function); | |
ffd56f97 | 3156 | defsubr (&Sindirect_function); |
7921925c JB |
3157 | defsubr (&Ssymbol_plist); |
3158 | defsubr (&Ssymbol_name); | |
3159 | defsubr (&Smakunbound); | |
3160 | defsubr (&Sfmakunbound); | |
3161 | defsubr (&Sboundp); | |
3162 | defsubr (&Sfboundp); | |
3163 | defsubr (&Sfset); | |
80df38a2 | 3164 | defsubr (&Sdefalias); |
7921925c JB |
3165 | defsubr (&Ssetplist); |
3166 | defsubr (&Ssymbol_value); | |
3167 | defsubr (&Sset); | |
3168 | defsubr (&Sdefault_boundp); | |
3169 | defsubr (&Sdefault_value); | |
3170 | defsubr (&Sset_default); | |
3171 | defsubr (&Ssetq_default); | |
3172 | defsubr (&Smake_variable_buffer_local); | |
3173 | defsubr (&Smake_local_variable); | |
3174 | defsubr (&Skill_local_variable); | |
b0c2d1c6 | 3175 | defsubr (&Smake_variable_frame_local); |
62476adc | 3176 | defsubr (&Slocal_variable_p); |
f4f04cee | 3177 | defsubr (&Slocal_variable_if_set_p); |
7921925c JB |
3178 | defsubr (&Saref); |
3179 | defsubr (&Saset); | |
f2980264 | 3180 | defsubr (&Snumber_to_string); |
25e40a4b | 3181 | defsubr (&Sstring_to_number); |
7921925c JB |
3182 | defsubr (&Seqlsign); |
3183 | defsubr (&Slss); | |
3184 | defsubr (&Sgtr); | |
3185 | defsubr (&Sleq); | |
3186 | defsubr (&Sgeq); | |
3187 | defsubr (&Sneq); | |
3188 | defsubr (&Szerop); | |
3189 | defsubr (&Splus); | |
3190 | defsubr (&Sminus); | |
3191 | defsubr (&Stimes); | |
3192 | defsubr (&Squo); | |
3193 | defsubr (&Srem); | |
44fa9da5 | 3194 | defsubr (&Smod); |
7921925c JB |
3195 | defsubr (&Smax); |
3196 | defsubr (&Smin); | |
3197 | defsubr (&Slogand); | |
3198 | defsubr (&Slogior); | |
3199 | defsubr (&Slogxor); | |
3200 | defsubr (&Slsh); | |
3201 | defsubr (&Sash); | |
3202 | defsubr (&Sadd1); | |
3203 | defsubr (&Ssub1); | |
3204 | defsubr (&Slognot); | |
6f0e897f | 3205 | defsubr (&Ssubr_arity); |
8e86942b | 3206 | |
c80bd143 | 3207 | XSYMBOL (Qwholenump)->function = XSYMBOL (Qnatnump)->function; |
e6190b11 | 3208 | |
9d113d9d AS |
3209 | DEFVAR_LISP ("most-positive-fixnum", &Vmost_positive_fixnum, |
3210 | doc: /* The largest value that is representable in a Lisp integer. */); | |
3211 | Vmost_positive_fixnum = make_number (MOST_POSITIVE_FIXNUM); | |
e6190b11 | 3212 | |
9d113d9d AS |
3213 | DEFVAR_LISP ("most-negative-fixnum", &Vmost_negative_fixnum, |
3214 | doc: /* The smallest value that is representable in a Lisp integer. */); | |
3215 | Vmost_negative_fixnum = make_number (MOST_NEGATIVE_FIXNUM); | |
7921925c JB |
3216 | } |
3217 | ||
a33ef3ab | 3218 | SIGTYPE |
7921925c JB |
3219 | arith_error (signo) |
3220 | int signo; | |
3221 | { | |
fe42a920 | 3222 | #if defined(USG) && !defined(POSIX_SIGNALS) |
7921925c JB |
3223 | /* USG systems forget handlers when they are used; |
3224 | must reestablish each time */ | |
3225 | signal (signo, arith_error); | |
3226 | #endif /* USG */ | |
3227 | #ifdef VMS | |
3228 | /* VMS systems are like USG. */ | |
3229 | signal (signo, arith_error); | |
3230 | #endif /* VMS */ | |
3231 | #ifdef BSD4_1 | |
3232 | sigrelse (SIGFPE); | |
3233 | #else /* not BSD4_1 */ | |
e065a56e | 3234 | sigsetmask (SIGEMPTYMASK); |
7921925c JB |
3235 | #endif /* not BSD4_1 */ |
3236 | ||
3237 | Fsignal (Qarith_error, Qnil); | |
3238 | } | |
3239 | ||
dfcf069d | 3240 | void |
7921925c JB |
3241 | init_data () |
3242 | { | |
3243 | /* Don't do this if just dumping out. | |
3244 | We don't want to call `signal' in this case | |
3245 | so that we don't have trouble with dumping | |
3246 | signal-delivering routines in an inconsistent state. */ | |
3247 | #ifndef CANNOT_DUMP | |
3248 | if (!initialized) | |
3249 | return; | |
3250 | #endif /* CANNOT_DUMP */ | |
3251 | signal (SIGFPE, arith_error); | |
7403b5c8 | 3252 | |
7921925c JB |
3253 | #ifdef uts |
3254 | signal (SIGEMT, arith_error); | |
3255 | #endif /* uts */ | |
3256 | } |