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 | |
e6190b11 GM |
99 | int most_positive_fixnum, most_negative_fixnum; |
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 | { | |
117 | if (!EQ (Vmocklisp_arguments, Qt)) | |
118 | { | |
e9ebc175 | 119 | if (STRINGP (value) && |
7921925c | 120 | (EQ (predicate, Qintegerp) || EQ (predicate, Qinteger_or_marker_p))) |
3883fbeb | 121 | return Fstring_to_number (value, Qnil); |
e9ebc175 | 122 | if (INTEGERP (value) && EQ (predicate, Qstringp)) |
f2980264 | 123 | return Fnumber_to_string (value); |
7921925c | 124 | } |
e1351ff7 RS |
125 | |
126 | /* If VALUE is not even a valid Lisp object, abort here | |
127 | where we can get a backtrace showing where it came from. */ | |
04be3993 | 128 | if ((unsigned int) XGCTYPE (value) >= Lisp_Type_Limit) |
e1351ff7 RS |
129 | abort (); |
130 | ||
7921925c JB |
131 | value = Fsignal (Qwrong_type_argument, Fcons (predicate, Fcons (value, Qnil))); |
132 | tem = call1 (predicate, value); | |
133 | } | |
a33ef3ab | 134 | while (NILP (tem)); |
7921925c JB |
135 | return value; |
136 | } | |
137 | ||
dfcf069d | 138 | void |
7921925c JB |
139 | pure_write_error () |
140 | { | |
141 | error ("Attempt to modify read-only object"); | |
142 | } | |
143 | ||
144 | void | |
145 | args_out_of_range (a1, a2) | |
146 | Lisp_Object a1, a2; | |
147 | { | |
148 | while (1) | |
149 | Fsignal (Qargs_out_of_range, Fcons (a1, Fcons (a2, Qnil))); | |
150 | } | |
151 | ||
152 | void | |
153 | args_out_of_range_3 (a1, a2, a3) | |
154 | Lisp_Object a1, a2, a3; | |
155 | { | |
156 | while (1) | |
157 | Fsignal (Qargs_out_of_range, Fcons (a1, Fcons (a2, Fcons (a3, Qnil)))); | |
158 | } | |
159 | ||
7921925c JB |
160 | /* On some machines, XINT needs a temporary location. |
161 | Here it is, in case it is needed. */ | |
162 | ||
163 | int sign_extend_temp; | |
164 | ||
165 | /* On a few machines, XINT can only be done by calling this. */ | |
166 | ||
167 | int | |
168 | sign_extend_lisp_int (num) | |
a0ed95ea | 169 | EMACS_INT num; |
7921925c | 170 | { |
a0ed95ea RS |
171 | if (num & (((EMACS_INT) 1) << (VALBITS - 1))) |
172 | return num | (((EMACS_INT) (-1)) << VALBITS); | |
7921925c | 173 | else |
a0ed95ea | 174 | return num & ((((EMACS_INT) 1) << VALBITS) - 1); |
7921925c JB |
175 | } |
176 | \f | |
177 | /* Data type predicates */ | |
178 | ||
179 | DEFUN ("eq", Feq, Seq, 2, 2, 0, | |
8c1a1077 PJ |
180 | doc: /* Return t if the two args are the same Lisp object. */) |
181 | (obj1, obj2) | |
7921925c JB |
182 | Lisp_Object obj1, obj2; |
183 | { | |
184 | if (EQ (obj1, obj2)) | |
185 | return Qt; | |
186 | return Qnil; | |
187 | } | |
188 | ||
8c1a1077 PJ |
189 | DEFUN ("null", Fnull, Snull, 1, 1, 0, |
190 | doc: /* Return t if OBJECT is nil. */) | |
191 | (object) | |
39bcc759 | 192 | Lisp_Object object; |
7921925c | 193 | { |
39bcc759 | 194 | if (NILP (object)) |
7921925c JB |
195 | return Qt; |
196 | return Qnil; | |
197 | } | |
198 | ||
39bcc759 | 199 | DEFUN ("type-of", Ftype_of, Stype_of, 1, 1, 0, |
8c1a1077 PJ |
200 | doc: /* Return a symbol representing the type of OBJECT. |
201 | The symbol returned names the object's basic type; | |
202 | for example, (type-of 1) returns `integer'. */) | |
203 | (object) | |
39bcc759 RS |
204 | Lisp_Object object; |
205 | { | |
206 | switch (XGCTYPE (object)) | |
207 | { | |
208 | case Lisp_Int: | |
209 | return Qinteger; | |
210 | ||
211 | case Lisp_Symbol: | |
212 | return Qsymbol; | |
213 | ||
214 | case Lisp_String: | |
215 | return Qstring; | |
216 | ||
217 | case Lisp_Cons: | |
218 | return Qcons; | |
219 | ||
220 | case Lisp_Misc: | |
324a6eef | 221 | switch (XMISCTYPE (object)) |
39bcc759 RS |
222 | { |
223 | case Lisp_Misc_Marker: | |
224 | return Qmarker; | |
225 | case Lisp_Misc_Overlay: | |
226 | return Qoverlay; | |
227 | case Lisp_Misc_Float: | |
228 | return Qfloat; | |
229 | } | |
230 | abort (); | |
231 | ||
232 | case Lisp_Vectorlike: | |
233 | if (GC_WINDOW_CONFIGURATIONP (object)) | |
234 | return Qwindow_configuration; | |
235 | if (GC_PROCESSP (object)) | |
236 | return Qprocess; | |
237 | if (GC_WINDOWP (object)) | |
238 | return Qwindow; | |
239 | if (GC_SUBRP (object)) | |
240 | return Qsubr; | |
241 | if (GC_COMPILEDP (object)) | |
242 | return Qcompiled_function; | |
243 | if (GC_BUFFERP (object)) | |
244 | return Qbuffer; | |
fc67d5be KH |
245 | if (GC_CHAR_TABLE_P (object)) |
246 | return Qchar_table; | |
247 | if (GC_BOOL_VECTOR_P (object)) | |
248 | return Qbool_vector; | |
39bcc759 RS |
249 | if (GC_FRAMEP (object)) |
250 | return Qframe; | |
81dc5de5 GM |
251 | if (GC_HASH_TABLE_P (object)) |
252 | return Qhash_table; | |
39bcc759 RS |
253 | return Qvector; |
254 | ||
39bcc759 RS |
255 | case Lisp_Float: |
256 | return Qfloat; | |
39bcc759 RS |
257 | |
258 | default: | |
259 | abort (); | |
260 | } | |
261 | } | |
262 | ||
8c1a1077 PJ |
263 | DEFUN ("consp", Fconsp, Sconsp, 1, 1, 0, |
264 | doc: /* Return t if OBJECT is a cons cell. */) | |
265 | (object) | |
39bcc759 | 266 | Lisp_Object object; |
7921925c | 267 | { |
39bcc759 | 268 | if (CONSP (object)) |
7921925c JB |
269 | return Qt; |
270 | return Qnil; | |
271 | } | |
272 | ||
25638b07 | 273 | DEFUN ("atom", Fatom, Satom, 1, 1, 0, |
8c1a1077 PJ |
274 | doc: /* Return t if OBJECT is not a cons cell. This includes nil. */) |
275 | (object) | |
39bcc759 | 276 | Lisp_Object object; |
7921925c | 277 | { |
39bcc759 | 278 | if (CONSP (object)) |
7921925c JB |
279 | return Qnil; |
280 | return Qt; | |
281 | } | |
282 | ||
25638b07 | 283 | DEFUN ("listp", Flistp, Slistp, 1, 1, 0, |
8c1a1077 PJ |
284 | doc: /* Return t if OBJECT is a list. This includes nil. */) |
285 | (object) | |
39bcc759 | 286 | Lisp_Object object; |
7921925c | 287 | { |
39bcc759 | 288 | if (CONSP (object) || NILP (object)) |
7921925c JB |
289 | return Qt; |
290 | return Qnil; | |
291 | } | |
292 | ||
25638b07 | 293 | DEFUN ("nlistp", Fnlistp, Snlistp, 1, 1, 0, |
8c1a1077 PJ |
294 | doc: /* Return t if OBJECT is not a list. Lists include nil. */) |
295 | (object) | |
39bcc759 | 296 | Lisp_Object object; |
7921925c | 297 | { |
39bcc759 | 298 | if (CONSP (object) || NILP (object)) |
7921925c JB |
299 | return Qnil; |
300 | return Qt; | |
301 | } | |
302 | \f | |
25638b07 | 303 | DEFUN ("symbolp", Fsymbolp, Ssymbolp, 1, 1, 0, |
8c1a1077 PJ |
304 | doc: /* Return t if OBJECT is a symbol. */) |
305 | (object) | |
39bcc759 | 306 | Lisp_Object object; |
7921925c | 307 | { |
39bcc759 | 308 | if (SYMBOLP (object)) |
7921925c JB |
309 | return Qt; |
310 | return Qnil; | |
311 | } | |
312 | ||
cda9b832 DL |
313 | /* Define this in C to avoid unnecessarily consing up the symbol |
314 | name. */ | |
315 | DEFUN ("keywordp", Fkeywordp, Skeywordp, 1, 1, 0, | |
8c1a1077 PJ |
316 | doc: /* Return t if OBJECT is a keyword. |
317 | This means that it is a symbol with a print name beginning with `:' | |
318 | interned in the initial obarray. */) | |
319 | (object) | |
cda9b832 DL |
320 | Lisp_Object object; |
321 | { | |
322 | if (SYMBOLP (object) | |
323 | && XSYMBOL (object)->name->data[0] == ':' | |
f35d5bad | 324 | && SYMBOL_INTERNED_IN_INITIAL_OBARRAY_P (object)) |
cda9b832 DL |
325 | return Qt; |
326 | return Qnil; | |
327 | } | |
328 | ||
25638b07 | 329 | DEFUN ("vectorp", Fvectorp, Svectorp, 1, 1, 0, |
8c1a1077 PJ |
330 | doc: /* Return t if OBJECT is a vector. */) |
331 | (object) | |
39bcc759 | 332 | Lisp_Object object; |
7921925c | 333 | { |
39bcc759 | 334 | if (VECTORP (object)) |
7921925c JB |
335 | return Qt; |
336 | return Qnil; | |
337 | } | |
338 | ||
25638b07 | 339 | DEFUN ("stringp", Fstringp, Sstringp, 1, 1, 0, |
8c1a1077 PJ |
340 | doc: /* Return t if OBJECT is a string. */) |
341 | (object) | |
39bcc759 | 342 | Lisp_Object object; |
7921925c | 343 | { |
39bcc759 | 344 | if (STRINGP (object)) |
7921925c JB |
345 | return Qt; |
346 | return Qnil; | |
347 | } | |
348 | ||
25638b07 | 349 | DEFUN ("multibyte-string-p", Fmultibyte_string_p, Smultibyte_string_p, |
8c1a1077 PJ |
350 | 1, 1, 0, |
351 | doc: /* Return t if OBJECT is a multibyte string. */) | |
352 | (object) | |
25638b07 RS |
353 | Lisp_Object object; |
354 | { | |
355 | if (STRINGP (object) && STRING_MULTIBYTE (object)) | |
356 | return Qt; | |
357 | return Qnil; | |
358 | } | |
359 | ||
360 | DEFUN ("char-table-p", Fchar_table_p, Schar_table_p, 1, 1, 0, | |
8c1a1077 PJ |
361 | doc: /* Return t if OBJECT is a char-table. */) |
362 | (object) | |
4d276982 RS |
363 | Lisp_Object object; |
364 | { | |
365 | if (CHAR_TABLE_P (object)) | |
366 | return Qt; | |
367 | return Qnil; | |
368 | } | |
369 | ||
7f0edce7 RS |
370 | DEFUN ("vector-or-char-table-p", Fvector_or_char_table_p, |
371 | Svector_or_char_table_p, 1, 1, 0, | |
8c1a1077 PJ |
372 | doc: /* Return t if OBJECT is a char-table or vector. */) |
373 | (object) | |
7f0edce7 RS |
374 | Lisp_Object object; |
375 | { | |
376 | if (VECTORP (object) || CHAR_TABLE_P (object)) | |
377 | return Qt; | |
378 | return Qnil; | |
379 | } | |
380 | ||
8c1a1077 PJ |
381 | DEFUN ("bool-vector-p", Fbool_vector_p, Sbool_vector_p, 1, 1, 0, |
382 | doc: /* Return t if OBJECT is a bool-vector. */) | |
383 | (object) | |
4d276982 RS |
384 | Lisp_Object object; |
385 | { | |
386 | if (BOOL_VECTOR_P (object)) | |
387 | return Qt; | |
388 | return Qnil; | |
389 | } | |
390 | ||
8c1a1077 PJ |
391 | DEFUN ("arrayp", Farrayp, Sarrayp, 1, 1, 0, |
392 | doc: /* Return t if OBJECT is an array (string or vector). */) | |
393 | (object) | |
39bcc759 | 394 | Lisp_Object object; |
7921925c | 395 | { |
a9729926 RS |
396 | if (VECTORP (object) || STRINGP (object) |
397 | || CHAR_TABLE_P (object) || BOOL_VECTOR_P (object)) | |
7921925c JB |
398 | return Qt; |
399 | return Qnil; | |
400 | } | |
401 | ||
402 | DEFUN ("sequencep", Fsequencep, Ssequencep, 1, 1, 0, | |
8c1a1077 PJ |
403 | doc: /* Return t if OBJECT is a sequence (list or array). */) |
404 | (object) | |
39bcc759 | 405 | register Lisp_Object object; |
7921925c | 406 | { |
4d276982 RS |
407 | if (CONSP (object) || NILP (object) || VECTORP (object) || STRINGP (object) |
408 | || CHAR_TABLE_P (object) || BOOL_VECTOR_P (object)) | |
7921925c JB |
409 | return Qt; |
410 | return Qnil; | |
411 | } | |
412 | ||
8c1a1077 PJ |
413 | DEFUN ("bufferp", Fbufferp, Sbufferp, 1, 1, 0, |
414 | doc: /* Return t if OBJECT is an editor buffer. */) | |
415 | (object) | |
39bcc759 | 416 | Lisp_Object object; |
7921925c | 417 | { |
39bcc759 | 418 | if (BUFFERP (object)) |
7921925c JB |
419 | return Qt; |
420 | return Qnil; | |
421 | } | |
422 | ||
8c1a1077 PJ |
423 | DEFUN ("markerp", Fmarkerp, Smarkerp, 1, 1, 0, |
424 | doc: /* Return t if OBJECT is a marker (editor pointer). */) | |
425 | (object) | |
39bcc759 | 426 | Lisp_Object object; |
7921925c | 427 | { |
39bcc759 | 428 | if (MARKERP (object)) |
7921925c JB |
429 | return Qt; |
430 | return Qnil; | |
431 | } | |
432 | ||
8c1a1077 PJ |
433 | DEFUN ("subrp", Fsubrp, Ssubrp, 1, 1, 0, |
434 | doc: /* Return t if OBJECT is a built-in function. */) | |
435 | (object) | |
39bcc759 | 436 | Lisp_Object object; |
7921925c | 437 | { |
39bcc759 | 438 | if (SUBRP (object)) |
7921925c JB |
439 | return Qt; |
440 | return Qnil; | |
441 | } | |
442 | ||
dbc4e1c1 | 443 | DEFUN ("byte-code-function-p", Fbyte_code_function_p, Sbyte_code_function_p, |
8c1a1077 PJ |
444 | 1, 1, 0, |
445 | doc: /* Return t if OBJECT is a byte-compiled function object. */) | |
446 | (object) | |
39bcc759 | 447 | Lisp_Object object; |
7921925c | 448 | { |
39bcc759 | 449 | if (COMPILEDP (object)) |
7921925c JB |
450 | return Qt; |
451 | return Qnil; | |
452 | } | |
453 | ||
0321d75c | 454 | DEFUN ("char-or-string-p", Fchar_or_string_p, Schar_or_string_p, 1, 1, 0, |
8c1a1077 PJ |
455 | doc: /* Return t if OBJECT is a character (an integer) or a string. */) |
456 | (object) | |
39bcc759 | 457 | register Lisp_Object object; |
7921925c | 458 | { |
39bcc759 | 459 | if (INTEGERP (object) || STRINGP (object)) |
7921925c JB |
460 | return Qt; |
461 | return Qnil; | |
462 | } | |
463 | \f | |
8c1a1077 PJ |
464 | DEFUN ("integerp", Fintegerp, Sintegerp, 1, 1, 0, |
465 | doc: /* Return t if OBJECT is an integer. */) | |
466 | (object) | |
39bcc759 | 467 | Lisp_Object object; |
7921925c | 468 | { |
39bcc759 | 469 | if (INTEGERP (object)) |
7921925c JB |
470 | return Qt; |
471 | return Qnil; | |
472 | } | |
473 | ||
464f8898 | 474 | DEFUN ("integer-or-marker-p", Finteger_or_marker_p, Sinteger_or_marker_p, 1, 1, 0, |
8c1a1077 PJ |
475 | doc: /* Return t if OBJECT is an integer or a marker (editor pointer). */) |
476 | (object) | |
39bcc759 | 477 | register Lisp_Object object; |
7921925c | 478 | { |
39bcc759 | 479 | if (MARKERP (object) || INTEGERP (object)) |
7921925c JB |
480 | return Qt; |
481 | return Qnil; | |
482 | } | |
483 | ||
0321d75c | 484 | DEFUN ("natnump", Fnatnump, Snatnump, 1, 1, 0, |
8c1a1077 PJ |
485 | doc: /* Return t if OBJECT is a nonnegative integer. */) |
486 | (object) | |
39bcc759 | 487 | Lisp_Object object; |
7921925c | 488 | { |
39bcc759 | 489 | if (NATNUMP (object)) |
7921925c JB |
490 | return Qt; |
491 | return Qnil; | |
492 | } | |
493 | ||
494 | DEFUN ("numberp", Fnumberp, Snumberp, 1, 1, 0, | |
8c1a1077 PJ |
495 | doc: /* Return t if OBJECT is a number (floating point or integer). */) |
496 | (object) | |
39bcc759 | 497 | Lisp_Object object; |
7921925c | 498 | { |
39bcc759 | 499 | if (NUMBERP (object)) |
7921925c | 500 | return Qt; |
dbc4e1c1 JB |
501 | else |
502 | return Qnil; | |
7921925c JB |
503 | } |
504 | ||
505 | DEFUN ("number-or-marker-p", Fnumber_or_marker_p, | |
506 | Snumber_or_marker_p, 1, 1, 0, | |
8c1a1077 PJ |
507 | doc: /* Return t if OBJECT is a number or a marker. */) |
508 | (object) | |
39bcc759 | 509 | Lisp_Object object; |
7921925c | 510 | { |
39bcc759 | 511 | if (NUMBERP (object) || MARKERP (object)) |
7921925c JB |
512 | return Qt; |
513 | return Qnil; | |
514 | } | |
464f8898 | 515 | |
464f8898 | 516 | DEFUN ("floatp", Ffloatp, Sfloatp, 1, 1, 0, |
8c1a1077 PJ |
517 | doc: /* Return t if OBJECT is a floating point number. */) |
518 | (object) | |
39bcc759 | 519 | Lisp_Object object; |
464f8898 | 520 | { |
39bcc759 | 521 | if (FLOATP (object)) |
464f8898 RS |
522 | return Qt; |
523 | return Qnil; | |
524 | } | |
cc94f3b2 | 525 | |
7921925c JB |
526 | \f |
527 | /* Extract and set components of lists */ | |
528 | ||
529 | DEFUN ("car", Fcar, Scar, 1, 1, 0, | |
8c1a1077 PJ |
530 | doc: /* Return the car of LIST. If arg is nil, return nil. |
531 | Error if arg is not nil and not a cons cell. See also `car-safe'. */) | |
532 | (list) | |
7921925c JB |
533 | register Lisp_Object list; |
534 | { | |
535 | while (1) | |
536 | { | |
e9ebc175 | 537 | if (CONSP (list)) |
7539e11f | 538 | return XCAR (list); |
7921925c JB |
539 | else if (EQ (list, Qnil)) |
540 | return Qnil; | |
541 | else | |
542 | list = wrong_type_argument (Qlistp, list); | |
543 | } | |
544 | } | |
545 | ||
546 | DEFUN ("car-safe", Fcar_safe, Scar_safe, 1, 1, 0, | |
8c1a1077 PJ |
547 | doc: /* Return the car of OBJECT if it is a cons cell, or else nil. */) |
548 | (object) | |
7921925c JB |
549 | Lisp_Object object; |
550 | { | |
e9ebc175 | 551 | if (CONSP (object)) |
7539e11f | 552 | return XCAR (object); |
7921925c JB |
553 | else |
554 | return Qnil; | |
555 | } | |
556 | ||
557 | DEFUN ("cdr", Fcdr, Scdr, 1, 1, 0, | |
8c1a1077 PJ |
558 | doc: /* Return the cdr of LIST. If arg is nil, return nil. |
559 | Error if arg is not nil and not a cons cell. See also `cdr-safe'. */) | |
560 | (list) | |
7921925c JB |
561 | register Lisp_Object list; |
562 | { | |
563 | while (1) | |
564 | { | |
e9ebc175 | 565 | if (CONSP (list)) |
7539e11f | 566 | return XCDR (list); |
7921925c JB |
567 | else if (EQ (list, Qnil)) |
568 | return Qnil; | |
569 | else | |
570 | list = wrong_type_argument (Qlistp, list); | |
571 | } | |
572 | } | |
573 | ||
574 | DEFUN ("cdr-safe", Fcdr_safe, Scdr_safe, 1, 1, 0, | |
8c1a1077 PJ |
575 | doc: /* Return the cdr of OBJECT if it is a cons cell, or else nil. */) |
576 | (object) | |
7921925c JB |
577 | Lisp_Object object; |
578 | { | |
e9ebc175 | 579 | if (CONSP (object)) |
7539e11f | 580 | return XCDR (object); |
7921925c JB |
581 | else |
582 | return Qnil; | |
583 | } | |
584 | ||
585 | DEFUN ("setcar", Fsetcar, Ssetcar, 2, 2, 0, | |
8c1a1077 PJ |
586 | doc: /* Set the car of CELL to be NEWCAR. Returns NEWCAR. */) |
587 | (cell, newcar) | |
7921925c JB |
588 | register Lisp_Object cell, newcar; |
589 | { | |
e9ebc175 | 590 | if (!CONSP (cell)) |
7921925c JB |
591 | cell = wrong_type_argument (Qconsp, cell); |
592 | ||
593 | CHECK_IMPURE (cell); | |
f3fbd155 | 594 | XSETCAR (cell, newcar); |
7921925c JB |
595 | return newcar; |
596 | } | |
597 | ||
598 | DEFUN ("setcdr", Fsetcdr, Ssetcdr, 2, 2, 0, | |
8c1a1077 PJ |
599 | doc: /* Set the cdr of CELL to be NEWCDR. Returns NEWCDR. */) |
600 | (cell, newcdr) | |
7921925c JB |
601 | register Lisp_Object cell, newcdr; |
602 | { | |
e9ebc175 | 603 | if (!CONSP (cell)) |
7921925c JB |
604 | cell = wrong_type_argument (Qconsp, cell); |
605 | ||
606 | CHECK_IMPURE (cell); | |
f3fbd155 | 607 | XSETCDR (cell, newcdr); |
7921925c JB |
608 | return newcdr; |
609 | } | |
610 | \f | |
611 | /* Extract and set components of symbols */ | |
612 | ||
8c1a1077 PJ |
613 | DEFUN ("boundp", Fboundp, Sboundp, 1, 1, 0, |
614 | doc: /* Return t if SYMBOL's value is not void. */) | |
615 | (symbol) | |
d9c2a0f2 | 616 | register Lisp_Object symbol; |
7921925c JB |
617 | { |
618 | Lisp_Object valcontents; | |
b7826503 | 619 | CHECK_SYMBOL (symbol); |
7921925c | 620 | |
f35d5bad | 621 | valcontents = SYMBOL_VALUE (symbol); |
7921925c | 622 | |
aabf6bec KH |
623 | if (BUFFER_LOCAL_VALUEP (valcontents) |
624 | || SOME_BUFFER_LOCAL_VALUEP (valcontents)) | |
d9c2a0f2 | 625 | valcontents = swap_in_symval_forwarding (symbol, valcontents); |
7921925c | 626 | |
1bfcade3 | 627 | return (EQ (valcontents, Qunbound) ? Qnil : Qt); |
7921925c JB |
628 | } |
629 | ||
8c1a1077 PJ |
630 | DEFUN ("fboundp", Ffboundp, Sfboundp, 1, 1, 0, |
631 | doc: /* Return t if SYMBOL's function definition is not void. */) | |
632 | (symbol) | |
d9c2a0f2 | 633 | register Lisp_Object symbol; |
7921925c | 634 | { |
b7826503 | 635 | CHECK_SYMBOL (symbol); |
d9c2a0f2 | 636 | return (EQ (XSYMBOL (symbol)->function, Qunbound) ? Qnil : Qt); |
7921925c JB |
637 | } |
638 | ||
8c1a1077 PJ |
639 | DEFUN ("makunbound", Fmakunbound, Smakunbound, 1, 1, 0, |
640 | doc: /* Make SYMBOL's value be void. */) | |
641 | (symbol) | |
d9c2a0f2 | 642 | register Lisp_Object symbol; |
7921925c | 643 | { |
b7826503 | 644 | CHECK_SYMBOL (symbol); |
f35d5bad | 645 | if (XSYMBOL (symbol)->constant) |
d9c2a0f2 EN |
646 | return Fsignal (Qsetting_constant, Fcons (symbol, Qnil)); |
647 | Fset (symbol, Qunbound); | |
648 | return symbol; | |
7921925c JB |
649 | } |
650 | ||
8c1a1077 PJ |
651 | DEFUN ("fmakunbound", Ffmakunbound, Sfmakunbound, 1, 1, 0, |
652 | doc: /* Make SYMBOL's function definition be void. */) | |
653 | (symbol) | |
d9c2a0f2 | 654 | register Lisp_Object symbol; |
7921925c | 655 | { |
b7826503 | 656 | CHECK_SYMBOL (symbol); |
d9c2a0f2 EN |
657 | if (NILP (symbol) || EQ (symbol, Qt)) |
658 | return Fsignal (Qsetting_constant, Fcons (symbol, Qnil)); | |
659 | XSYMBOL (symbol)->function = Qunbound; | |
660 | return symbol; | |
7921925c JB |
661 | } |
662 | ||
663 | DEFUN ("symbol-function", Fsymbol_function, Ssymbol_function, 1, 1, 0, | |
8c1a1077 PJ |
664 | doc: /* Return SYMBOL's function definition. Error if that is void. */) |
665 | (symbol) | |
ffd56f97 | 666 | register Lisp_Object symbol; |
7921925c | 667 | { |
b7826503 | 668 | CHECK_SYMBOL (symbol); |
ffd56f97 JB |
669 | if (EQ (XSYMBOL (symbol)->function, Qunbound)) |
670 | return Fsignal (Qvoid_function, Fcons (symbol, Qnil)); | |
671 | return XSYMBOL (symbol)->function; | |
7921925c JB |
672 | } |
673 | ||
8c1a1077 PJ |
674 | DEFUN ("symbol-plist", Fsymbol_plist, Ssymbol_plist, 1, 1, 0, |
675 | doc: /* Return SYMBOL's property list. */) | |
676 | (symbol) | |
d9c2a0f2 | 677 | register Lisp_Object symbol; |
7921925c | 678 | { |
b7826503 | 679 | CHECK_SYMBOL (symbol); |
d9c2a0f2 | 680 | return XSYMBOL (symbol)->plist; |
7921925c JB |
681 | } |
682 | ||
8c1a1077 PJ |
683 | DEFUN ("symbol-name", Fsymbol_name, Ssymbol_name, 1, 1, 0, |
684 | doc: /* Return SYMBOL's name, a string. */) | |
685 | (symbol) | |
d9c2a0f2 | 686 | register Lisp_Object symbol; |
7921925c JB |
687 | { |
688 | register Lisp_Object name; | |
689 | ||
b7826503 | 690 | CHECK_SYMBOL (symbol); |
d9c2a0f2 | 691 | XSETSTRING (name, XSYMBOL (symbol)->name); |
7921925c JB |
692 | return name; |
693 | } | |
694 | ||
695 | DEFUN ("fset", Ffset, Sfset, 2, 2, 0, | |
8c1a1077 PJ |
696 | doc: /* Set SYMBOL's function definition to DEFINITION, and return DEFINITION. */) |
697 | (symbol, definition) | |
8c0b5540 | 698 | register Lisp_Object symbol, definition; |
d9c2a0f2 | 699 | { |
b7826503 | 700 | CHECK_SYMBOL (symbol); |
d9c2a0f2 EN |
701 | if (NILP (symbol) || EQ (symbol, Qt)) |
702 | return Fsignal (Qsetting_constant, Fcons (symbol, Qnil)); | |
703 | if (!NILP (Vautoload_queue) && !EQ (XSYMBOL (symbol)->function, Qunbound)) | |
704 | Vautoload_queue = Fcons (Fcons (symbol, XSYMBOL (symbol)->function), | |
7921925c | 705 | Vautoload_queue); |
8c0b5540 | 706 | XSYMBOL (symbol)->function = definition; |
f845f2c9 | 707 | /* Handle automatic advice activation */ |
d9c2a0f2 | 708 | if (CONSP (XSYMBOL (symbol)->plist) && !NILP (Fget (symbol, Qad_advice_info))) |
f845f2c9 | 709 | { |
c1307a23 | 710 | call2 (Qad_activate_internal, symbol, Qnil); |
8c0b5540 | 711 | definition = XSYMBOL (symbol)->function; |
f845f2c9 | 712 | } |
8c0b5540 | 713 | return definition; |
7921925c JB |
714 | } |
715 | ||
80df38a2 | 716 | DEFUN ("defalias", Fdefalias, Sdefalias, 2, 2, 0, |
8c1a1077 PJ |
717 | doc: /* Set SYMBOL's function definition to DEFINITION, and return DEFINITION. |
718 | Associates the function with the current load file, if any. */) | |
719 | (symbol, definition) | |
73e0d965 | 720 | register Lisp_Object symbol, definition; |
fc08c367 | 721 | { |
32f532b7 | 722 | definition = Ffset (symbol, definition); |
d9c2a0f2 | 723 | LOADHIST_ATTACH (symbol); |
73e0d965 | 724 | return definition; |
fc08c367 RS |
725 | } |
726 | ||
7921925c | 727 | DEFUN ("setplist", Fsetplist, Ssetplist, 2, 2, 0, |
8c1a1077 PJ |
728 | doc: /* Set SYMBOL's property list to NEWVAL, and return NEWVAL. */) |
729 | (symbol, newplist) | |
d9c2a0f2 | 730 | register Lisp_Object symbol, newplist; |
7921925c | 731 | { |
b7826503 | 732 | CHECK_SYMBOL (symbol); |
d9c2a0f2 | 733 | XSYMBOL (symbol)->plist = newplist; |
7921925c JB |
734 | return newplist; |
735 | } | |
ffd56f97 | 736 | |
6f0e897f | 737 | DEFUN ("subr-arity", Fsubr_arity, Ssubr_arity, 1, 1, 0, |
8c1a1077 PJ |
738 | doc: /* Return minimum and maximum number of args allowed for SUBR. |
739 | SUBR must be a built-in function. | |
740 | The returned value is a pair (MIN . MAX). MIN is the minimum number | |
741 | of args. MAX is the maximum number or the symbol `many', for a | |
742 | function with `&rest' args, or `unevalled' for a special form. */) | |
743 | (subr) | |
6f0e897f DL |
744 | Lisp_Object subr; |
745 | { | |
746 | short minargs, maxargs; | |
747 | if (!SUBRP (subr)) | |
748 | wrong_type_argument (Qsubrp, subr); | |
749 | minargs = XSUBR (subr)->min_args; | |
750 | maxargs = XSUBR (subr)->max_args; | |
751 | if (maxargs == MANY) | |
752 | return Fcons (make_number (minargs), Qmany); | |
753 | else if (maxargs == UNEVALLED) | |
754 | return Fcons (make_number (minargs), Qunevalled); | |
755 | else | |
756 | return Fcons (make_number (minargs), make_number (maxargs)); | |
757 | } | |
758 | ||
cc515226 | 759 | DEFUN ("subr-interactive-form", Fsubr_interactive_form, Ssubr_interactive_form, 1, 1, 0, |
8c1a1077 PJ |
760 | doc: /* Return the interactive form of SUBR or nil if none. |
761 | SUBR must be a built-in function. Value, if non-nil, is a list | |
762 | \(interactive SPEC). */) | |
763 | (subr) | |
cc515226 GM |
764 | Lisp_Object subr; |
765 | { | |
766 | if (!SUBRP (subr)) | |
767 | wrong_type_argument (Qsubrp, subr); | |
768 | if (XSUBR (subr)->prompt) | |
769 | return list2 (Qinteractive, build_string (XSUBR (subr)->prompt)); | |
770 | return Qnil; | |
771 | } | |
772 | ||
7921925c | 773 | \f |
f35d5bad GM |
774 | /*********************************************************************** |
775 | Getting and Setting Values of Symbols | |
776 | ***********************************************************************/ | |
777 | ||
778 | /* Return the symbol holding SYMBOL's value. Signal | |
779 | `cyclic-variable-indirection' if SYMBOL's chain of variable | |
780 | indirections contains a loop. */ | |
781 | ||
782 | Lisp_Object | |
783 | indirect_variable (symbol) | |
784 | Lisp_Object symbol; | |
785 | { | |
786 | Lisp_Object tortoise, hare; | |
787 | ||
788 | hare = tortoise = symbol; | |
789 | ||
790 | while (XSYMBOL (hare)->indirect_variable) | |
791 | { | |
792 | hare = XSYMBOL (hare)->value; | |
793 | if (!XSYMBOL (hare)->indirect_variable) | |
794 | break; | |
795 | ||
796 | hare = XSYMBOL (hare)->value; | |
797 | tortoise = XSYMBOL (tortoise)->value; | |
798 | ||
799 | if (EQ (hare, tortoise)) | |
800 | Fsignal (Qcyclic_variable_indirection, Fcons (symbol, Qnil)); | |
801 | } | |
802 | ||
803 | return hare; | |
804 | } | |
805 | ||
806 | ||
807 | DEFUN ("indirect-variable", Findirect_variable, Sindirect_variable, 1, 1, 0, | |
8c1a1077 PJ |
808 | doc: /* Return the variable at the end of OBJECT's variable chain. |
809 | If OBJECT is a symbol, follow all variable indirections and return the final | |
810 | variable. If OBJECT is not a symbol, just return it. | |
811 | Signal a cyclic-variable-indirection error if there is a loop in the | |
812 | variable chain of symbols. */) | |
813 | (object) | |
f35d5bad GM |
814 | Lisp_Object object; |
815 | { | |
816 | if (SYMBOLP (object)) | |
817 | object = indirect_variable (object); | |
818 | return object; | |
819 | } | |
820 | ||
7921925c JB |
821 | |
822 | /* Given the raw contents of a symbol value cell, | |
823 | return the Lisp value of the symbol. | |
824 | This does not handle buffer-local variables; use | |
825 | swap_in_symval_forwarding for that. */ | |
826 | ||
827 | Lisp_Object | |
828 | do_symval_forwarding (valcontents) | |
829 | register Lisp_Object valcontents; | |
830 | { | |
831 | register Lisp_Object val; | |
46b2ac21 KH |
832 | int offset; |
833 | if (MISCP (valcontents)) | |
324a6eef | 834 | switch (XMISCTYPE (valcontents)) |
46b2ac21 KH |
835 | { |
836 | case Lisp_Misc_Intfwd: | |
837 | XSETINT (val, *XINTFWD (valcontents)->intvar); | |
838 | return val; | |
7921925c | 839 | |
46b2ac21 KH |
840 | case Lisp_Misc_Boolfwd: |
841 | return (*XBOOLFWD (valcontents)->boolvar ? Qt : Qnil); | |
7921925c | 842 | |
46b2ac21 KH |
843 | case Lisp_Misc_Objfwd: |
844 | return *XOBJFWD (valcontents)->objvar; | |
7921925c | 845 | |
46b2ac21 KH |
846 | case Lisp_Misc_Buffer_Objfwd: |
847 | offset = XBUFFER_OBJFWD (valcontents)->offset; | |
f6cd0527 | 848 | return PER_BUFFER_VALUE (current_buffer, offset); |
7403b5c8 | 849 | |
e5f8af9e KH |
850 | case Lisp_Misc_Kboard_Objfwd: |
851 | offset = XKBOARD_OBJFWD (valcontents)->offset; | |
852 | return *(Lisp_Object *)(offset + (char *)current_kboard); | |
46b2ac21 | 853 | } |
7921925c JB |
854 | return valcontents; |
855 | } | |
856 | ||
d9c2a0f2 EN |
857 | /* Store NEWVAL into SYMBOL, where VALCONTENTS is found in the value cell |
858 | of SYMBOL. If SYMBOL is buffer-local, VALCONTENTS should be the | |
7921925c | 859 | buffer-independent contents of the value cell: forwarded just one |
7a283f36 GM |
860 | step past the buffer-localness. |
861 | ||
862 | BUF non-zero means set the value in buffer BUF instead of the | |
863 | current buffer. This only plays a role for per-buffer variables. */ | |
7921925c JB |
864 | |
865 | void | |
7a283f36 | 866 | store_symval_forwarding (symbol, valcontents, newval, buf) |
d9c2a0f2 | 867 | Lisp_Object symbol; |
7921925c | 868 | register Lisp_Object valcontents, newval; |
7a283f36 | 869 | struct buffer *buf; |
7921925c | 870 | { |
0220c518 | 871 | switch (SWITCH_ENUM_CAST (XTYPE (valcontents))) |
7921925c | 872 | { |
46b2ac21 | 873 | case Lisp_Misc: |
324a6eef | 874 | switch (XMISCTYPE (valcontents)) |
46b2ac21 KH |
875 | { |
876 | case Lisp_Misc_Intfwd: | |
b7826503 | 877 | CHECK_NUMBER (newval); |
46b2ac21 | 878 | *XINTFWD (valcontents)->intvar = XINT (newval); |
e6c82a8d RS |
879 | if (*XINTFWD (valcontents)->intvar != XINT (newval)) |
880 | error ("Value out of range for variable `%s'", | |
d9c2a0f2 | 881 | XSYMBOL (symbol)->name->data); |
46b2ac21 KH |
882 | break; |
883 | ||
884 | case Lisp_Misc_Boolfwd: | |
885 | *XBOOLFWD (valcontents)->boolvar = NILP (newval) ? 0 : 1; | |
886 | break; | |
887 | ||
888 | case Lisp_Misc_Objfwd: | |
889 | *XOBJFWD (valcontents)->objvar = newval; | |
890 | break; | |
891 | ||
892 | case Lisp_Misc_Buffer_Objfwd: | |
893 | { | |
894 | int offset = XBUFFER_OBJFWD (valcontents)->offset; | |
895 | Lisp_Object type; | |
896 | ||
f6cd0527 | 897 | type = PER_BUFFER_TYPE (offset); |
984ef137 KH |
898 | if (XINT (type) == -1) |
899 | error ("Variable %s is read-only", XSYMBOL (symbol)->name->data); | |
900 | ||
46b2ac21 KH |
901 | if (! NILP (type) && ! NILP (newval) |
902 | && XTYPE (newval) != XINT (type)) | |
903 | buffer_slot_type_mismatch (offset); | |
904 | ||
7a283f36 GM |
905 | if (buf == NULL) |
906 | buf = current_buffer; | |
907 | PER_BUFFER_VALUE (buf, offset) = newval; | |
46b2ac21 | 908 | } |
7403b5c8 KH |
909 | break; |
910 | ||
e5f8af9e | 911 | case Lisp_Misc_Kboard_Objfwd: |
7a283f36 GM |
912 | { |
913 | char *base = (char *) current_kboard; | |
914 | char *p = base + XKBOARD_OBJFWD (valcontents)->offset; | |
915 | *(Lisp_Object *) p = newval; | |
916 | } | |
7403b5c8 KH |
917 | break; |
918 | ||
46b2ac21 KH |
919 | default: |
920 | goto def; | |
921 | } | |
7921925c JB |
922 | break; |
923 | ||
7921925c | 924 | default: |
46b2ac21 | 925 | def: |
f35d5bad | 926 | valcontents = SYMBOL_VALUE (symbol); |
e9ebc175 KH |
927 | if (BUFFER_LOCAL_VALUEP (valcontents) |
928 | || SOME_BUFFER_LOCAL_VALUEP (valcontents)) | |
b0c2d1c6 | 929 | XBUFFER_LOCAL_VALUE (valcontents)->realvalue = newval; |
7921925c | 930 | else |
f35d5bad | 931 | SET_SYMBOL_VALUE (symbol, newval); |
7921925c JB |
932 | } |
933 | } | |
934 | ||
b0d53add GM |
935 | /* Set up SYMBOL to refer to its global binding. |
936 | This makes it safe to alter the status of other bindings. */ | |
937 | ||
938 | void | |
939 | swap_in_global_binding (symbol) | |
940 | Lisp_Object symbol; | |
941 | { | |
942 | Lisp_Object valcontents, cdr; | |
943 | ||
f35d5bad | 944 | valcontents = SYMBOL_VALUE (symbol); |
b0d53add GM |
945 | if (!BUFFER_LOCAL_VALUEP (valcontents) |
946 | && !SOME_BUFFER_LOCAL_VALUEP (valcontents)) | |
947 | abort (); | |
948 | cdr = XBUFFER_LOCAL_VALUE (valcontents)->cdr; | |
949 | ||
950 | /* Unload the previously loaded binding. */ | |
951 | Fsetcdr (XCAR (cdr), | |
952 | do_symval_forwarding (XBUFFER_LOCAL_VALUE (valcontents)->realvalue)); | |
953 | ||
954 | /* Select the global binding in the symbol. */ | |
f3fbd155 | 955 | XSETCAR (cdr, cdr); |
7a283f36 | 956 | store_symval_forwarding (symbol, valcontents, XCDR (cdr), NULL); |
b0d53add GM |
957 | |
958 | /* Indicate that the global binding is set up now. */ | |
959 | XBUFFER_LOCAL_VALUE (valcontents)->frame = Qnil; | |
960 | XBUFFER_LOCAL_VALUE (valcontents)->buffer = Qnil; | |
961 | XBUFFER_LOCAL_VALUE (valcontents)->found_for_frame = 0; | |
962 | XBUFFER_LOCAL_VALUE (valcontents)->found_for_buffer = 0; | |
963 | } | |
964 | ||
2829d05f | 965 | /* Set up the buffer-local symbol SYMBOL for validity in the current buffer. |
42e975f0 RS |
966 | VALCONTENTS is the contents of its value cell, |
967 | which points to a struct Lisp_Buffer_Local_Value. | |
968 | ||
969 | Return the value forwarded one step past the buffer-local stage. | |
970 | This could be another forwarding pointer. */ | |
7921925c JB |
971 | |
972 | static Lisp_Object | |
d9c2a0f2 EN |
973 | swap_in_symval_forwarding (symbol, valcontents) |
974 | Lisp_Object symbol, valcontents; | |
7921925c | 975 | { |
7921925c | 976 | register Lisp_Object tem1; |
f35d5bad | 977 | |
b0c2d1c6 | 978 | tem1 = XBUFFER_LOCAL_VALUE (valcontents)->buffer; |
7921925c | 979 | |
42e975f0 RS |
980 | if (NILP (tem1) |
981 | || current_buffer != XBUFFER (tem1) | |
982 | || (XBUFFER_LOCAL_VALUE (valcontents)->check_frame | |
983 | && ! EQ (selected_frame, XBUFFER_LOCAL_VALUE (valcontents)->frame))) | |
7921925c | 984 | { |
f35d5bad GM |
985 | if (XSYMBOL (symbol)->indirect_variable) |
986 | symbol = indirect_variable (symbol); | |
987 | ||
42e975f0 | 988 | /* Unload the previously loaded binding. */ |
7539e11f | 989 | tem1 = XCAR (XBUFFER_LOCAL_VALUE (valcontents)->cdr); |
8d4afcac | 990 | Fsetcdr (tem1, |
b0c2d1c6 | 991 | do_symval_forwarding (XBUFFER_LOCAL_VALUE (valcontents)->realvalue)); |
42e975f0 | 992 | /* Choose the new binding. */ |
d9c2a0f2 | 993 | tem1 = assq_no_quit (symbol, current_buffer->local_var_alist); |
b0c2d1c6 RS |
994 | XBUFFER_LOCAL_VALUE (valcontents)->found_for_frame = 0; |
995 | XBUFFER_LOCAL_VALUE (valcontents)->found_for_buffer = 0; | |
a33ef3ab | 996 | if (NILP (tem1)) |
b0c2d1c6 RS |
997 | { |
998 | if (XBUFFER_LOCAL_VALUE (valcontents)->check_frame) | |
1cc04aed | 999 | tem1 = assq_no_quit (symbol, XFRAME (selected_frame)->param_alist); |
b0c2d1c6 RS |
1000 | if (! NILP (tem1)) |
1001 | XBUFFER_LOCAL_VALUE (valcontents)->found_for_frame = 1; | |
1002 | else | |
1003 | tem1 = XBUFFER_LOCAL_VALUE (valcontents)->cdr; | |
1004 | } | |
1005 | else | |
1006 | XBUFFER_LOCAL_VALUE (valcontents)->found_for_buffer = 1; | |
1007 | ||
42e975f0 | 1008 | /* Load the new binding. */ |
f3fbd155 | 1009 | XSETCAR (XBUFFER_LOCAL_VALUE (valcontents)->cdr, tem1); |
b0c2d1c6 | 1010 | XSETBUFFER (XBUFFER_LOCAL_VALUE (valcontents)->buffer, current_buffer); |
1cc04aed | 1011 | XBUFFER_LOCAL_VALUE (valcontents)->frame = selected_frame; |
b0c2d1c6 RS |
1012 | store_symval_forwarding (symbol, |
1013 | XBUFFER_LOCAL_VALUE (valcontents)->realvalue, | |
7a283f36 | 1014 | Fcdr (tem1), NULL); |
7921925c | 1015 | } |
b0c2d1c6 | 1016 | return XBUFFER_LOCAL_VALUE (valcontents)->realvalue; |
7921925c JB |
1017 | } |
1018 | \f | |
14e76af9 JB |
1019 | /* Find the value of a symbol, returning Qunbound if it's not bound. |
1020 | This is helpful for code which just wants to get a variable's value | |
8e6208c5 | 1021 | if it has one, without signaling an error. |
14e76af9 JB |
1022 | Note that it must not be possible to quit |
1023 | within this function. Great care is required for this. */ | |
7921925c | 1024 | |
14e76af9 | 1025 | Lisp_Object |
d9c2a0f2 EN |
1026 | find_symbol_value (symbol) |
1027 | Lisp_Object symbol; | |
7921925c | 1028 | { |
dd8daec5 | 1029 | register Lisp_Object valcontents; |
7921925c | 1030 | register Lisp_Object val; |
f35d5bad | 1031 | |
b7826503 | 1032 | CHECK_SYMBOL (symbol); |
f35d5bad | 1033 | valcontents = SYMBOL_VALUE (symbol); |
7921925c | 1034 | |
aabf6bec KH |
1035 | if (BUFFER_LOCAL_VALUEP (valcontents) |
1036 | || SOME_BUFFER_LOCAL_VALUEP (valcontents)) | |
2a359158 | 1037 | valcontents = swap_in_symval_forwarding (symbol, valcontents); |
7921925c | 1038 | |
536b772a KH |
1039 | if (MISCP (valcontents)) |
1040 | { | |
324a6eef | 1041 | switch (XMISCTYPE (valcontents)) |
46b2ac21 KH |
1042 | { |
1043 | case Lisp_Misc_Intfwd: | |
1044 | XSETINT (val, *XINTFWD (valcontents)->intvar); | |
1045 | return val; | |
7921925c | 1046 | |
46b2ac21 KH |
1047 | case Lisp_Misc_Boolfwd: |
1048 | return (*XBOOLFWD (valcontents)->boolvar ? Qt : Qnil); | |
7921925c | 1049 | |
46b2ac21 KH |
1050 | case Lisp_Misc_Objfwd: |
1051 | return *XOBJFWD (valcontents)->objvar; | |
7921925c | 1052 | |
46b2ac21 | 1053 | case Lisp_Misc_Buffer_Objfwd: |
f6cd0527 | 1054 | return PER_BUFFER_VALUE (current_buffer, |
999b32fd | 1055 | XBUFFER_OBJFWD (valcontents)->offset); |
7403b5c8 | 1056 | |
e5f8af9e KH |
1057 | case Lisp_Misc_Kboard_Objfwd: |
1058 | return *(Lisp_Object *)(XKBOARD_OBJFWD (valcontents)->offset | |
1059 | + (char *)current_kboard); | |
46b2ac21 | 1060 | } |
7921925c JB |
1061 | } |
1062 | ||
1063 | return valcontents; | |
1064 | } | |
1065 | ||
14e76af9 | 1066 | DEFUN ("symbol-value", Fsymbol_value, Ssymbol_value, 1, 1, 0, |
8c1a1077 PJ |
1067 | doc: /* Return SYMBOL's value. Error if that is void. */) |
1068 | (symbol) | |
d9c2a0f2 | 1069 | Lisp_Object symbol; |
14e76af9 | 1070 | { |
0671d7c0 | 1071 | Lisp_Object val; |
14e76af9 | 1072 | |
d9c2a0f2 | 1073 | val = find_symbol_value (symbol); |
14e76af9 | 1074 | if (EQ (val, Qunbound)) |
d9c2a0f2 | 1075 | return Fsignal (Qvoid_variable, Fcons (symbol, Qnil)); |
14e76af9 JB |
1076 | else |
1077 | return val; | |
1078 | } | |
1079 | ||
7921925c | 1080 | DEFUN ("set", Fset, Sset, 2, 2, 0, |
8c1a1077 PJ |
1081 | doc: /* Set SYMBOL's value to NEWVAL, and return NEWVAL. */) |
1082 | (symbol, newval) | |
d9c2a0f2 | 1083 | register Lisp_Object symbol, newval; |
05ef7169 | 1084 | { |
2829d05f | 1085 | return set_internal (symbol, newval, current_buffer, 0); |
05ef7169 RS |
1086 | } |
1087 | ||
1f35ce36 RS |
1088 | /* Return 1 if SYMBOL currently has a let-binding |
1089 | which was made in the buffer that is now current. */ | |
1090 | ||
1091 | static int | |
1092 | let_shadows_buffer_binding_p (symbol) | |
1093 | Lisp_Object symbol; | |
1094 | { | |
1095 | struct specbinding *p; | |
1096 | ||
1097 | for (p = specpdl_ptr - 1; p >= specpdl; p--) | |
f35d5bad GM |
1098 | if (p->func == NULL |
1099 | && CONSP (p->symbol)) | |
1100 | { | |
1101 | Lisp_Object let_bound_symbol = XCAR (p->symbol); | |
1102 | if ((EQ (symbol, let_bound_symbol) | |
1103 | || (XSYMBOL (let_bound_symbol)->indirect_variable | |
1104 | && EQ (symbol, indirect_variable (let_bound_symbol)))) | |
1105 | && XBUFFER (XCDR (XCDR (p->symbol))) == current_buffer) | |
1106 | break; | |
1107 | } | |
1f35ce36 | 1108 | |
f35d5bad | 1109 | return p >= specpdl; |
1f35ce36 RS |
1110 | } |
1111 | ||
25638b07 | 1112 | /* Store the value NEWVAL into SYMBOL. |
2829d05f RS |
1113 | If buffer-locality is an issue, BUF specifies which buffer to use. |
1114 | (0 stands for the current buffer.) | |
1115 | ||
05ef7169 RS |
1116 | If BINDFLAG is zero, then if this symbol is supposed to become |
1117 | local in every buffer where it is set, then we make it local. | |
1118 | If BINDFLAG is nonzero, we don't do that. */ | |
1119 | ||
1120 | Lisp_Object | |
2829d05f | 1121 | set_internal (symbol, newval, buf, bindflag) |
05ef7169 | 1122 | register Lisp_Object symbol, newval; |
2829d05f | 1123 | struct buffer *buf; |
05ef7169 | 1124 | int bindflag; |
7921925c | 1125 | { |
1bfcade3 | 1126 | int voide = EQ (newval, Qunbound); |
7921925c | 1127 | |
4c47c973 | 1128 | register Lisp_Object valcontents, innercontents, tem1, current_alist_element; |
7921925c | 1129 | |
2829d05f RS |
1130 | if (buf == 0) |
1131 | buf = current_buffer; | |
1132 | ||
1133 | /* If restoring in a dead buffer, do nothing. */ | |
1134 | if (NILP (buf->name)) | |
1135 | return newval; | |
1136 | ||
b7826503 | 1137 | CHECK_SYMBOL (symbol); |
f35d5bad GM |
1138 | if (SYMBOL_CONSTANT_P (symbol) |
1139 | && (NILP (Fkeywordp (symbol)) | |
1140 | || !EQ (newval, SYMBOL_VALUE (symbol)))) | |
d9c2a0f2 | 1141 | return Fsignal (Qsetting_constant, Fcons (symbol, Qnil)); |
4c47c973 | 1142 | |
f35d5bad GM |
1143 | innercontents = valcontents = SYMBOL_VALUE (symbol); |
1144 | ||
e9ebc175 | 1145 | if (BUFFER_OBJFWDP (valcontents)) |
7921925c | 1146 | { |
999b32fd | 1147 | int offset = XBUFFER_OBJFWD (valcontents)->offset; |
f6cd0527 | 1148 | int idx = PER_BUFFER_IDX (offset); |
999b32fd GM |
1149 | if (idx > 0 |
1150 | && !bindflag | |
1151 | && !let_shadows_buffer_binding_p (symbol)) | |
f6cd0527 | 1152 | SET_PER_BUFFER_VALUE_P (buf, idx, 1); |
7921925c | 1153 | } |
e9ebc175 KH |
1154 | else if (BUFFER_LOCAL_VALUEP (valcontents) |
1155 | || SOME_BUFFER_LOCAL_VALUEP (valcontents)) | |
7921925c | 1156 | { |
42e975f0 | 1157 | /* valcontents is a struct Lisp_Buffer_Local_Value. */ |
f35d5bad GM |
1158 | if (XSYMBOL (symbol)->indirect_variable) |
1159 | symbol = indirect_variable (symbol); | |
42e975f0 RS |
1160 | |
1161 | /* What binding is loaded right now? */ | |
b0c2d1c6 | 1162 | current_alist_element |
7539e11f | 1163 | = XCAR (XBUFFER_LOCAL_VALUE (valcontents)->cdr); |
d8cafeb5 JB |
1164 | |
1165 | /* If the current buffer is not the buffer whose binding is | |
42e975f0 RS |
1166 | loaded, or if there may be frame-local bindings and the frame |
1167 | isn't the right one, or if it's a Lisp_Buffer_Local_Value and | |
1168 | the default binding is loaded, the loaded binding may be the | |
1169 | wrong one. */ | |
8801a864 KR |
1170 | if (!BUFFERP (XBUFFER_LOCAL_VALUE (valcontents)->buffer) |
1171 | || buf != XBUFFER (XBUFFER_LOCAL_VALUE (valcontents)->buffer) | |
42e975f0 RS |
1172 | || (XBUFFER_LOCAL_VALUE (valcontents)->check_frame |
1173 | && !EQ (selected_frame, XBUFFER_LOCAL_VALUE (valcontents)->frame)) | |
1174 | || (BUFFER_LOCAL_VALUEP (valcontents) | |
1175 | && EQ (XCAR (current_alist_element), | |
1176 | current_alist_element))) | |
7921925c | 1177 | { |
42e975f0 RS |
1178 | /* The currently loaded binding is not necessarily valid. |
1179 | We need to unload it, and choose a new binding. */ | |
1180 | ||
1181 | /* Write out `realvalue' to the old loaded binding. */ | |
d8cafeb5 | 1182 | Fsetcdr (current_alist_element, |
b0c2d1c6 | 1183 | do_symval_forwarding (XBUFFER_LOCAL_VALUE (valcontents)->realvalue)); |
7921925c | 1184 | |
42e975f0 | 1185 | /* Find the new binding. */ |
2829d05f | 1186 | tem1 = Fassq (symbol, buf->local_var_alist); |
b0c2d1c6 RS |
1187 | XBUFFER_LOCAL_VALUE (valcontents)->found_for_buffer = 1; |
1188 | XBUFFER_LOCAL_VALUE (valcontents)->found_for_frame = 0; | |
1189 | ||
a33ef3ab | 1190 | if (NILP (tem1)) |
d8cafeb5 JB |
1191 | { |
1192 | /* This buffer still sees the default value. */ | |
1193 | ||
1194 | /* If the variable is a Lisp_Some_Buffer_Local_Value, | |
05ef7169 | 1195 | or if this is `let' rather than `set', |
d8cafeb5 | 1196 | make CURRENT-ALIST-ELEMENT point to itself, |
1f35ce36 RS |
1197 | indicating that we're seeing the default value. |
1198 | Likewise if the variable has been let-bound | |
1199 | in the current buffer. */ | |
1200 | if (bindflag || SOME_BUFFER_LOCAL_VALUEP (valcontents) | |
1201 | || let_shadows_buffer_binding_p (symbol)) | |
b0c2d1c6 RS |
1202 | { |
1203 | XBUFFER_LOCAL_VALUE (valcontents)->found_for_buffer = 0; | |
1204 | ||
1205 | if (XBUFFER_LOCAL_VALUE (valcontents)->check_frame) | |
1cc04aed GM |
1206 | tem1 = Fassq (symbol, |
1207 | XFRAME (selected_frame)->param_alist); | |
d8cafeb5 | 1208 | |
b0c2d1c6 RS |
1209 | if (! NILP (tem1)) |
1210 | XBUFFER_LOCAL_VALUE (valcontents)->found_for_frame = 1; | |
1211 | else | |
1212 | tem1 = XBUFFER_LOCAL_VALUE (valcontents)->cdr; | |
1213 | } | |
05ef7169 | 1214 | /* If it's a Lisp_Buffer_Local_Value, being set not bound, |
1f35ce36 RS |
1215 | and we're not within a let that was made for this buffer, |
1216 | create a new buffer-local binding for the variable. | |
1217 | That means, give this buffer a new assoc for a local value | |
42e975f0 | 1218 | and load that binding. */ |
d8cafeb5 JB |
1219 | else |
1220 | { | |
d9c2a0f2 | 1221 | tem1 = Fcons (symbol, Fcdr (current_alist_element)); |
2829d05f RS |
1222 | buf->local_var_alist |
1223 | = Fcons (tem1, buf->local_var_alist); | |
d8cafeb5 JB |
1224 | } |
1225 | } | |
b0c2d1c6 | 1226 | |
42e975f0 | 1227 | /* Record which binding is now loaded. */ |
f3fbd155 KR |
1228 | XSETCAR (XBUFFER_LOCAL_VALUE (valcontents)->cdr, |
1229 | tem1); | |
d8cafeb5 | 1230 | |
42e975f0 | 1231 | /* Set `buffer' and `frame' slots for thebinding now loaded. */ |
2829d05f | 1232 | XSETBUFFER (XBUFFER_LOCAL_VALUE (valcontents)->buffer, buf); |
1cc04aed | 1233 | XBUFFER_LOCAL_VALUE (valcontents)->frame = selected_frame; |
7921925c | 1234 | } |
4c47c973 | 1235 | innercontents = XBUFFER_LOCAL_VALUE (valcontents)->realvalue; |
7921925c | 1236 | } |
d8cafeb5 | 1237 | |
7921925c JB |
1238 | /* If storing void (making the symbol void), forward only through |
1239 | buffer-local indicator, not through Lisp_Objfwd, etc. */ | |
1240 | if (voide) | |
7a283f36 | 1241 | store_symval_forwarding (symbol, Qnil, newval, buf); |
7921925c | 1242 | else |
7a283f36 | 1243 | store_symval_forwarding (symbol, innercontents, newval, buf); |
4c47c973 GM |
1244 | |
1245 | /* If we just set a variable whose current binding is frame-local, | |
1246 | store the new value in the frame parameter too. */ | |
1247 | ||
1248 | if (BUFFER_LOCAL_VALUEP (valcontents) | |
1249 | || SOME_BUFFER_LOCAL_VALUEP (valcontents)) | |
1250 | { | |
1251 | /* What binding is loaded right now? */ | |
1252 | current_alist_element | |
1253 | = XCAR (XBUFFER_LOCAL_VALUE (valcontents)->cdr); | |
1254 | ||
1255 | /* If the current buffer is not the buffer whose binding is | |
1256 | loaded, or if there may be frame-local bindings and the frame | |
1257 | isn't the right one, or if it's a Lisp_Buffer_Local_Value and | |
1258 | the default binding is loaded, the loaded binding may be the | |
1259 | wrong one. */ | |
1260 | if (XBUFFER_LOCAL_VALUE (valcontents)->found_for_frame) | |
f3fbd155 | 1261 | XSETCDR (current_alist_element, newval); |
4c47c973 | 1262 | } |
d8cafeb5 | 1263 | |
7921925c JB |
1264 | return newval; |
1265 | } | |
1266 | \f | |
1267 | /* Access or set a buffer-local symbol's default value. */ | |
1268 | ||
d9c2a0f2 | 1269 | /* Return the default value of SYMBOL, but don't check for voidness. |
1bfcade3 | 1270 | Return Qunbound if it is void. */ |
7921925c JB |
1271 | |
1272 | Lisp_Object | |
d9c2a0f2 EN |
1273 | default_value (symbol) |
1274 | Lisp_Object symbol; | |
7921925c JB |
1275 | { |
1276 | register Lisp_Object valcontents; | |
1277 | ||
b7826503 | 1278 | CHECK_SYMBOL (symbol); |
f35d5bad | 1279 | valcontents = SYMBOL_VALUE (symbol); |
7921925c JB |
1280 | |
1281 | /* For a built-in buffer-local variable, get the default value | |
1282 | rather than letting do_symval_forwarding get the current value. */ | |
e9ebc175 | 1283 | if (BUFFER_OBJFWDP (valcontents)) |
7921925c | 1284 | { |
999b32fd | 1285 | int offset = XBUFFER_OBJFWD (valcontents)->offset; |
f6cd0527 GM |
1286 | if (PER_BUFFER_IDX (offset) != 0) |
1287 | return PER_BUFFER_DEFAULT (offset); | |
7921925c JB |
1288 | } |
1289 | ||
1290 | /* Handle user-created local variables. */ | |
e9ebc175 KH |
1291 | if (BUFFER_LOCAL_VALUEP (valcontents) |
1292 | || SOME_BUFFER_LOCAL_VALUEP (valcontents)) | |
7921925c JB |
1293 | { |
1294 | /* If var is set up for a buffer that lacks a local value for it, | |
1295 | the current value is nominally the default value. | |
42e975f0 | 1296 | But the `realvalue' slot may be more up to date, since |
7921925c JB |
1297 | ordinary setq stores just that slot. So use that. */ |
1298 | Lisp_Object current_alist_element, alist_element_car; | |
1299 | current_alist_element | |
7539e11f KR |
1300 | = XCAR (XBUFFER_LOCAL_VALUE (valcontents)->cdr); |
1301 | alist_element_car = XCAR (current_alist_element); | |
7921925c | 1302 | if (EQ (alist_element_car, current_alist_element)) |
b0c2d1c6 | 1303 | return do_symval_forwarding (XBUFFER_LOCAL_VALUE (valcontents)->realvalue); |
7921925c | 1304 | else |
7539e11f | 1305 | return XCDR (XBUFFER_LOCAL_VALUE (valcontents)->cdr); |
7921925c JB |
1306 | } |
1307 | /* For other variables, get the current value. */ | |
1308 | return do_symval_forwarding (valcontents); | |
1309 | } | |
1310 | ||
1311 | DEFUN ("default-boundp", Fdefault_boundp, Sdefault_boundp, 1, 1, 0, | |
8c1a1077 PJ |
1312 | doc: /* Return t if SYMBOL has a non-void default value. |
1313 | This is the value that is seen in buffers that do not have their own values | |
1314 | for this variable. */) | |
1315 | (symbol) | |
d9c2a0f2 | 1316 | Lisp_Object symbol; |
7921925c JB |
1317 | { |
1318 | register Lisp_Object value; | |
1319 | ||
d9c2a0f2 | 1320 | value = default_value (symbol); |
1bfcade3 | 1321 | return (EQ (value, Qunbound) ? Qnil : Qt); |
7921925c JB |
1322 | } |
1323 | ||
1324 | DEFUN ("default-value", Fdefault_value, Sdefault_value, 1, 1, 0, | |
8c1a1077 PJ |
1325 | doc: /* Return SYMBOL's default value. |
1326 | This is the value that is seen in buffers that do not have their own values | |
1327 | for this variable. The default value is meaningful for variables with | |
1328 | local bindings in certain buffers. */) | |
1329 | (symbol) | |
d9c2a0f2 | 1330 | Lisp_Object symbol; |
7921925c JB |
1331 | { |
1332 | register Lisp_Object value; | |
1333 | ||
d9c2a0f2 | 1334 | value = default_value (symbol); |
1bfcade3 | 1335 | if (EQ (value, Qunbound)) |
d9c2a0f2 | 1336 | return Fsignal (Qvoid_variable, Fcons (symbol, Qnil)); |
7921925c JB |
1337 | return value; |
1338 | } | |
1339 | ||
1340 | DEFUN ("set-default", Fset_default, Sset_default, 2, 2, 0, | |
8c1a1077 PJ |
1341 | doc: /* Set SYMBOL's default value to VAL. SYMBOL and VAL are evaluated. |
1342 | The default value is seen in buffers that do not have their own values | |
1343 | for this variable. */) | |
1344 | (symbol, value) | |
d9c2a0f2 | 1345 | Lisp_Object symbol, value; |
7921925c JB |
1346 | { |
1347 | register Lisp_Object valcontents, current_alist_element, alist_element_buffer; | |
1348 | ||
b7826503 | 1349 | CHECK_SYMBOL (symbol); |
f35d5bad | 1350 | valcontents = SYMBOL_VALUE (symbol); |
7921925c JB |
1351 | |
1352 | /* Handle variables like case-fold-search that have special slots | |
1353 | in the buffer. Make them work apparently like Lisp_Buffer_Local_Value | |
1354 | variables. */ | |
e9ebc175 | 1355 | if (BUFFER_OBJFWDP (valcontents)) |
7921925c | 1356 | { |
999b32fd | 1357 | int offset = XBUFFER_OBJFWD (valcontents)->offset; |
f6cd0527 | 1358 | int idx = PER_BUFFER_IDX (offset); |
7921925c | 1359 | |
f6cd0527 | 1360 | PER_BUFFER_DEFAULT (offset) = value; |
984ef137 KH |
1361 | |
1362 | /* If this variable is not always local in all buffers, | |
1363 | set it in the buffers that don't nominally have a local value. */ | |
999b32fd | 1364 | if (idx > 0) |
7921925c | 1365 | { |
999b32fd GM |
1366 | struct buffer *b; |
1367 | ||
7921925c | 1368 | for (b = all_buffers; b; b = b->next) |
f6cd0527 GM |
1369 | if (!PER_BUFFER_VALUE_P (b, idx)) |
1370 | PER_BUFFER_VALUE (b, offset) = value; | |
7921925c JB |
1371 | } |
1372 | return value; | |
1373 | } | |
1374 | ||
e9ebc175 KH |
1375 | if (!BUFFER_LOCAL_VALUEP (valcontents) |
1376 | && !SOME_BUFFER_LOCAL_VALUEP (valcontents)) | |
d9c2a0f2 | 1377 | return Fset (symbol, value); |
7921925c | 1378 | |
42e975f0 | 1379 | /* Store new value into the DEFAULT-VALUE slot. */ |
f3fbd155 | 1380 | XSETCDR (XBUFFER_LOCAL_VALUE (valcontents)->cdr, value); |
7921925c | 1381 | |
42e975f0 | 1382 | /* If the default binding is now loaded, set the REALVALUE slot too. */ |
8d4afcac | 1383 | current_alist_element |
7539e11f | 1384 | = XCAR (XBUFFER_LOCAL_VALUE (valcontents)->cdr); |
7921925c JB |
1385 | alist_element_buffer = Fcar (current_alist_element); |
1386 | if (EQ (alist_element_buffer, current_alist_element)) | |
7a283f36 GM |
1387 | store_symval_forwarding (symbol, |
1388 | XBUFFER_LOCAL_VALUE (valcontents)->realvalue, | |
1389 | value, NULL); | |
7921925c JB |
1390 | |
1391 | return value; | |
1392 | } | |
1393 | ||
1394 | DEFUN ("setq-default", Fsetq_default, Ssetq_default, 2, UNEVALLED, 0, | |
8c1a1077 PJ |
1395 | doc: /* Set the default value of variable VAR to VALUE. |
1396 | VAR, the variable name, is literal (not evaluated); | |
1397 | VALUE is an expression and it is evaluated. | |
1398 | The default value of a variable is seen in buffers | |
1399 | that do not have their own values for the variable. | |
1400 | ||
1401 | More generally, you can use multiple variables and values, as in | |
1402 | (setq-default SYMBOL VALUE SYMBOL VALUE...) | |
1403 | This sets each SYMBOL's default value to the corresponding VALUE. | |
1404 | The VALUE for the Nth SYMBOL can refer to the new default values | |
f9d1e467 PJ |
1405 | of previous SYMs. |
1406 | usage: (setq-default SYMBOL VALUE [SYMBOL VALUE...]) */) | |
8c1a1077 | 1407 | (args) |
7921925c JB |
1408 | Lisp_Object args; |
1409 | { | |
1410 | register Lisp_Object args_left; | |
d9c2a0f2 | 1411 | register Lisp_Object val, symbol; |
7921925c JB |
1412 | struct gcpro gcpro1; |
1413 | ||
a33ef3ab | 1414 | if (NILP (args)) |
7921925c JB |
1415 | return Qnil; |
1416 | ||
1417 | args_left = args; | |
1418 | GCPRO1 (args); | |
1419 | ||
1420 | do | |
1421 | { | |
1422 | val = Feval (Fcar (Fcdr (args_left))); | |
d9c2a0f2 EN |
1423 | symbol = Fcar (args_left); |
1424 | Fset_default (symbol, val); | |
7921925c JB |
1425 | args_left = Fcdr (Fcdr (args_left)); |
1426 | } | |
a33ef3ab | 1427 | while (!NILP (args_left)); |
7921925c JB |
1428 | |
1429 | UNGCPRO; | |
1430 | return val; | |
1431 | } | |
1432 | \f | |
a5ca2b75 JB |
1433 | /* Lisp functions for creating and removing buffer-local variables. */ |
1434 | ||
7921925c | 1435 | DEFUN ("make-variable-buffer-local", Fmake_variable_buffer_local, Smake_variable_buffer_local, |
8c1a1077 PJ |
1436 | 1, 1, "vMake Variable Buffer Local: ", |
1437 | doc: /* Make VARIABLE become buffer-local whenever it is set. | |
1438 | At any time, the value for the current buffer is in effect, | |
1439 | unless the variable has never been set in this buffer, | |
1440 | in which case the default value is in effect. | |
1441 | Note that binding the variable with `let', or setting it while | |
1442 | a `let'-style binding made in this buffer is in effect, | |
1443 | does not make the variable buffer-local. | |
1444 | ||
1445 | The function `default-value' gets the default value and `set-default' sets it. */) | |
1446 | (variable) | |
d9c2a0f2 | 1447 | register Lisp_Object variable; |
7921925c | 1448 | { |
8d4afcac | 1449 | register Lisp_Object tem, valcontents, newval; |
7921925c | 1450 | |
b7826503 | 1451 | CHECK_SYMBOL (variable); |
7921925c | 1452 | |
f35d5bad | 1453 | valcontents = SYMBOL_VALUE (variable); |
d9c2a0f2 EN |
1454 | if (EQ (variable, Qnil) || EQ (variable, Qt) || KBOARD_OBJFWDP (valcontents)) |
1455 | error ("Symbol %s may not be buffer-local", XSYMBOL (variable)->name->data); | |
7921925c | 1456 | |
e9ebc175 | 1457 | if (BUFFER_LOCAL_VALUEP (valcontents) || BUFFER_OBJFWDP (valcontents)) |
d9c2a0f2 | 1458 | return variable; |
e9ebc175 | 1459 | if (SOME_BUFFER_LOCAL_VALUEP (valcontents)) |
7921925c | 1460 | { |
f35d5bad | 1461 | XMISCTYPE (SYMBOL_VALUE (variable)) = Lisp_Misc_Buffer_Local_Value; |
d9c2a0f2 | 1462 | return variable; |
7921925c JB |
1463 | } |
1464 | if (EQ (valcontents, Qunbound)) | |
f35d5bad | 1465 | SET_SYMBOL_VALUE (variable, Qnil); |
d9c2a0f2 | 1466 | tem = Fcons (Qnil, Fsymbol_value (variable)); |
f3fbd155 | 1467 | XSETCAR (tem, tem); |
8d4afcac | 1468 | newval = allocate_misc (); |
324a6eef | 1469 | XMISCTYPE (newval) = Lisp_Misc_Buffer_Local_Value; |
f35d5bad | 1470 | XBUFFER_LOCAL_VALUE (newval)->realvalue = SYMBOL_VALUE (variable); |
b0c2d1c6 RS |
1471 | XBUFFER_LOCAL_VALUE (newval)->buffer = Fcurrent_buffer (); |
1472 | XBUFFER_LOCAL_VALUE (newval)->frame = Qnil; | |
42e975f0 | 1473 | XBUFFER_LOCAL_VALUE (newval)->found_for_buffer = 0; |
b0c2d1c6 RS |
1474 | XBUFFER_LOCAL_VALUE (newval)->found_for_frame = 0; |
1475 | XBUFFER_LOCAL_VALUE (newval)->check_frame = 0; | |
1476 | XBUFFER_LOCAL_VALUE (newval)->cdr = tem; | |
f35d5bad | 1477 | SET_SYMBOL_VALUE (variable, newval); |
d9c2a0f2 | 1478 | return variable; |
7921925c JB |
1479 | } |
1480 | ||
1481 | DEFUN ("make-local-variable", Fmake_local_variable, Smake_local_variable, | |
8c1a1077 PJ |
1482 | 1, 1, "vMake Local Variable: ", |
1483 | doc: /* Make VARIABLE have a separate value in the current buffer. | |
1484 | Other buffers will continue to share a common default value. | |
1485 | \(The buffer-local value of VARIABLE starts out as the same value | |
1486 | VARIABLE previously had. If VARIABLE was void, it remains void.\) | |
1487 | See also `make-variable-buffer-local'. | |
1488 | ||
1489 | If the variable is already arranged to become local when set, | |
1490 | this function causes a local value to exist for this buffer, | |
1491 | just as setting the variable would do. | |
1492 | ||
1493 | This function returns VARIABLE, and therefore | |
1494 | (set (make-local-variable 'VARIABLE) VALUE-EXP) | |
1495 | works. | |
1496 | ||
1497 | Do not use `make-local-variable' to make a hook variable buffer-local. | |
515f3f25 | 1498 | Instead, use `add-hook' and specify t for the LOCAL argument. */) |
8c1a1077 | 1499 | (variable) |
d9c2a0f2 | 1500 | register Lisp_Object variable; |
7921925c JB |
1501 | { |
1502 | register Lisp_Object tem, valcontents; | |
1503 | ||
b7826503 | 1504 | CHECK_SYMBOL (variable); |
7921925c | 1505 | |
f35d5bad | 1506 | valcontents = SYMBOL_VALUE (variable); |
d9c2a0f2 EN |
1507 | if (EQ (variable, Qnil) || EQ (variable, Qt) || KBOARD_OBJFWDP (valcontents)) |
1508 | error ("Symbol %s may not be buffer-local", XSYMBOL (variable)->name->data); | |
7921925c | 1509 | |
e9ebc175 | 1510 | if (BUFFER_LOCAL_VALUEP (valcontents) || BUFFER_OBJFWDP (valcontents)) |
7921925c | 1511 | { |
d9c2a0f2 | 1512 | tem = Fboundp (variable); |
7403b5c8 | 1513 | |
7921925c JB |
1514 | /* Make sure the symbol has a local value in this particular buffer, |
1515 | by setting it to the same value it already has. */ | |
d9c2a0f2 EN |
1516 | Fset (variable, (EQ (tem, Qt) ? Fsymbol_value (variable) : Qunbound)); |
1517 | return variable; | |
7921925c | 1518 | } |
42e975f0 | 1519 | /* Make sure symbol is set up to hold per-buffer values. */ |
e9ebc175 | 1520 | if (!SOME_BUFFER_LOCAL_VALUEP (valcontents)) |
7921925c | 1521 | { |
8d4afcac | 1522 | Lisp_Object newval; |
7921925c | 1523 | tem = Fcons (Qnil, do_symval_forwarding (valcontents)); |
f3fbd155 | 1524 | XSETCAR (tem, tem); |
8d4afcac | 1525 | newval = allocate_misc (); |
324a6eef | 1526 | XMISCTYPE (newval) = Lisp_Misc_Some_Buffer_Local_Value; |
f35d5bad | 1527 | XBUFFER_LOCAL_VALUE (newval)->realvalue = SYMBOL_VALUE (variable); |
b0c2d1c6 RS |
1528 | XBUFFER_LOCAL_VALUE (newval)->buffer = Qnil; |
1529 | XBUFFER_LOCAL_VALUE (newval)->frame = Qnil; | |
1530 | XBUFFER_LOCAL_VALUE (newval)->found_for_buffer = 0; | |
1531 | XBUFFER_LOCAL_VALUE (newval)->found_for_frame = 0; | |
1532 | XBUFFER_LOCAL_VALUE (newval)->check_frame = 0; | |
1533 | XBUFFER_LOCAL_VALUE (newval)->cdr = tem; | |
f35d5bad | 1534 | SET_SYMBOL_VALUE (variable, newval);; |
7921925c | 1535 | } |
42e975f0 | 1536 | /* Make sure this buffer has its own value of symbol. */ |
d9c2a0f2 | 1537 | tem = Fassq (variable, current_buffer->local_var_alist); |
a33ef3ab | 1538 | if (NILP (tem)) |
7921925c | 1539 | { |
a5d004a1 RS |
1540 | /* Swap out any local binding for some other buffer, and make |
1541 | sure the current value is permanently recorded, if it's the | |
1542 | default value. */ | |
d9c2a0f2 | 1543 | find_symbol_value (variable); |
a5d004a1 | 1544 | |
7921925c | 1545 | current_buffer->local_var_alist |
f35d5bad | 1546 | = Fcons (Fcons (variable, XCDR (XBUFFER_LOCAL_VALUE (SYMBOL_VALUE (variable))->cdr)), |
7921925c JB |
1547 | current_buffer->local_var_alist); |
1548 | ||
1549 | /* Make sure symbol does not think it is set up for this buffer; | |
42e975f0 | 1550 | force it to look once again for this buffer's value. */ |
7921925c | 1551 | { |
8d4afcac | 1552 | Lisp_Object *pvalbuf; |
a5d004a1 | 1553 | |
f35d5bad | 1554 | valcontents = SYMBOL_VALUE (variable); |
a5d004a1 | 1555 | |
b0c2d1c6 | 1556 | pvalbuf = &XBUFFER_LOCAL_VALUE (valcontents)->buffer; |
8d4afcac KH |
1557 | if (current_buffer == XBUFFER (*pvalbuf)) |
1558 | *pvalbuf = Qnil; | |
b0c2d1c6 | 1559 | XBUFFER_LOCAL_VALUE (valcontents)->found_for_buffer = 0; |
7921925c | 1560 | } |
7921925c | 1561 | } |
a5ca2b75 | 1562 | |
42e975f0 RS |
1563 | /* If the symbol forwards into a C variable, then load the binding |
1564 | for this buffer now. If C code modifies the variable before we | |
1565 | load the binding in, then that new value will clobber the default | |
1566 | binding the next time we unload it. */ | |
f35d5bad | 1567 | valcontents = XBUFFER_LOCAL_VALUE (SYMBOL_VALUE (variable))->realvalue; |
e9ebc175 | 1568 | if (INTFWDP (valcontents) || BOOLFWDP (valcontents) || OBJFWDP (valcontents)) |
f35d5bad | 1569 | swap_in_symval_forwarding (variable, SYMBOL_VALUE (variable)); |
a5ca2b75 | 1570 | |
d9c2a0f2 | 1571 | return variable; |
7921925c JB |
1572 | } |
1573 | ||
1574 | DEFUN ("kill-local-variable", Fkill_local_variable, Skill_local_variable, | |
8c1a1077 PJ |
1575 | 1, 1, "vKill Local Variable: ", |
1576 | doc: /* Make VARIABLE no longer have a separate value in the current buffer. | |
1577 | From now on the default value will apply in this buffer. */) | |
1578 | (variable) | |
d9c2a0f2 | 1579 | register Lisp_Object variable; |
7921925c JB |
1580 | { |
1581 | register Lisp_Object tem, valcontents; | |
1582 | ||
b7826503 | 1583 | CHECK_SYMBOL (variable); |
7921925c | 1584 | |
f35d5bad | 1585 | valcontents = SYMBOL_VALUE (variable); |
7921925c | 1586 | |
e9ebc175 | 1587 | if (BUFFER_OBJFWDP (valcontents)) |
7921925c | 1588 | { |
999b32fd | 1589 | int offset = XBUFFER_OBJFWD (valcontents)->offset; |
f6cd0527 | 1590 | int idx = PER_BUFFER_IDX (offset); |
7921925c | 1591 | |
999b32fd | 1592 | if (idx > 0) |
7921925c | 1593 | { |
f6cd0527 GM |
1594 | SET_PER_BUFFER_VALUE_P (current_buffer, idx, 0); |
1595 | PER_BUFFER_VALUE (current_buffer, offset) | |
1596 | = PER_BUFFER_DEFAULT (offset); | |
7921925c | 1597 | } |
d9c2a0f2 | 1598 | return variable; |
7921925c JB |
1599 | } |
1600 | ||
e9ebc175 KH |
1601 | if (!BUFFER_LOCAL_VALUEP (valcontents) |
1602 | && !SOME_BUFFER_LOCAL_VALUEP (valcontents)) | |
d9c2a0f2 | 1603 | return variable; |
7921925c | 1604 | |
42e975f0 | 1605 | /* Get rid of this buffer's alist element, if any. */ |
7921925c | 1606 | |
d9c2a0f2 | 1607 | tem = Fassq (variable, current_buffer->local_var_alist); |
a33ef3ab | 1608 | if (!NILP (tem)) |
8d4afcac KH |
1609 | current_buffer->local_var_alist |
1610 | = Fdelq (tem, current_buffer->local_var_alist); | |
7921925c | 1611 | |
42e975f0 RS |
1612 | /* If the symbol is set up with the current buffer's binding |
1613 | loaded, recompute its value. We have to do it now, or else | |
1614 | forwarded objects won't work right. */ | |
7921925c | 1615 | { |
8d4afcac | 1616 | Lisp_Object *pvalbuf; |
f35d5bad | 1617 | valcontents = SYMBOL_VALUE (variable); |
b0c2d1c6 | 1618 | pvalbuf = &XBUFFER_LOCAL_VALUE (valcontents)->buffer; |
8d4afcac | 1619 | if (current_buffer == XBUFFER (*pvalbuf)) |
79c83e03 KH |
1620 | { |
1621 | *pvalbuf = Qnil; | |
b0c2d1c6 | 1622 | XBUFFER_LOCAL_VALUE (valcontents)->found_for_buffer = 0; |
978dd578 | 1623 | find_symbol_value (variable); |
79c83e03 | 1624 | } |
7921925c JB |
1625 | } |
1626 | ||
d9c2a0f2 | 1627 | return variable; |
7921925c | 1628 | } |
62476adc | 1629 | |
b0c2d1c6 RS |
1630 | /* Lisp functions for creating and removing buffer-local variables. */ |
1631 | ||
1632 | DEFUN ("make-variable-frame-local", Fmake_variable_frame_local, Smake_variable_frame_local, | |
8c1a1077 PJ |
1633 | 1, 1, "vMake Variable Frame Local: ", |
1634 | doc: /* Enable VARIABLE to have frame-local bindings. | |
1635 | When a frame-local binding exists in the current frame, | |
1636 | it is in effect whenever the current buffer has no buffer-local binding. | |
1637 | A frame-local binding is actual a frame parameter value; | |
1638 | thus, any given frame has a local binding for VARIABLE | |
1639 | if it has a value for the frame parameter named VARIABLE. | |
1640 | See `modify-frame-parameters'. */) | |
1641 | (variable) | |
b0c2d1c6 RS |
1642 | register Lisp_Object variable; |
1643 | { | |
1644 | register Lisp_Object tem, valcontents, newval; | |
1645 | ||
b7826503 | 1646 | CHECK_SYMBOL (variable); |
b0c2d1c6 | 1647 | |
f35d5bad | 1648 | valcontents = SYMBOL_VALUE (variable); |
b0c2d1c6 RS |
1649 | if (EQ (variable, Qnil) || EQ (variable, Qt) || KBOARD_OBJFWDP (valcontents) |
1650 | || BUFFER_OBJFWDP (valcontents)) | |
1651 | error ("Symbol %s may not be frame-local", XSYMBOL (variable)->name->data); | |
1652 | ||
1653 | if (BUFFER_LOCAL_VALUEP (valcontents) | |
1654 | || SOME_BUFFER_LOCAL_VALUEP (valcontents)) | |
42e975f0 RS |
1655 | { |
1656 | XBUFFER_LOCAL_VALUE (valcontents)->check_frame = 1; | |
1657 | return variable; | |
1658 | } | |
b0c2d1c6 RS |
1659 | |
1660 | if (EQ (valcontents, Qunbound)) | |
f35d5bad | 1661 | SET_SYMBOL_VALUE (variable, Qnil); |
b0c2d1c6 | 1662 | tem = Fcons (Qnil, Fsymbol_value (variable)); |
f3fbd155 | 1663 | XSETCAR (tem, tem); |
b0c2d1c6 RS |
1664 | newval = allocate_misc (); |
1665 | XMISCTYPE (newval) = Lisp_Misc_Some_Buffer_Local_Value; | |
f35d5bad | 1666 | XBUFFER_LOCAL_VALUE (newval)->realvalue = SYMBOL_VALUE (variable); |
b0c2d1c6 RS |
1667 | XBUFFER_LOCAL_VALUE (newval)->buffer = Qnil; |
1668 | XBUFFER_LOCAL_VALUE (newval)->frame = Qnil; | |
1669 | XBUFFER_LOCAL_VALUE (newval)->found_for_buffer = 0; | |
1670 | XBUFFER_LOCAL_VALUE (newval)->found_for_frame = 0; | |
1671 | XBUFFER_LOCAL_VALUE (newval)->check_frame = 1; | |
1672 | XBUFFER_LOCAL_VALUE (newval)->cdr = tem; | |
f35d5bad | 1673 | SET_SYMBOL_VALUE (variable, newval); |
b0c2d1c6 RS |
1674 | return variable; |
1675 | } | |
1676 | ||
62476adc | 1677 | DEFUN ("local-variable-p", Flocal_variable_p, Slocal_variable_p, |
8c1a1077 PJ |
1678 | 1, 2, 0, |
1679 | doc: /* Non-nil if VARIABLE has a local binding in buffer BUFFER. | |
1680 | BUFFER defaults to the current buffer. */) | |
1681 | (variable, buffer) | |
d9c2a0f2 | 1682 | register Lisp_Object variable, buffer; |
62476adc RS |
1683 | { |
1684 | Lisp_Object valcontents; | |
c48ead86 KH |
1685 | register struct buffer *buf; |
1686 | ||
1687 | if (NILP (buffer)) | |
1688 | buf = current_buffer; | |
1689 | else | |
1690 | { | |
b7826503 | 1691 | CHECK_BUFFER (buffer); |
c48ead86 KH |
1692 | buf = XBUFFER (buffer); |
1693 | } | |
62476adc | 1694 | |
b7826503 | 1695 | CHECK_SYMBOL (variable); |
62476adc | 1696 | |
f35d5bad | 1697 | valcontents = SYMBOL_VALUE (variable); |
c48ead86 | 1698 | if (BUFFER_LOCAL_VALUEP (valcontents) |
1e5f16fa | 1699 | || SOME_BUFFER_LOCAL_VALUEP (valcontents)) |
c48ead86 KH |
1700 | { |
1701 | Lisp_Object tail, elt; | |
f35d5bad GM |
1702 | |
1703 | variable = indirect_variable (variable); | |
7539e11f | 1704 | for (tail = buf->local_var_alist; CONSP (tail); tail = XCDR (tail)) |
c48ead86 | 1705 | { |
7539e11f KR |
1706 | elt = XCAR (tail); |
1707 | if (EQ (variable, XCAR (elt))) | |
c48ead86 KH |
1708 | return Qt; |
1709 | } | |
1710 | } | |
1711 | if (BUFFER_OBJFWDP (valcontents)) | |
1712 | { | |
1713 | int offset = XBUFFER_OBJFWD (valcontents)->offset; | |
f6cd0527 GM |
1714 | int idx = PER_BUFFER_IDX (offset); |
1715 | if (idx == -1 || PER_BUFFER_VALUE_P (buf, idx)) | |
c48ead86 KH |
1716 | return Qt; |
1717 | } | |
1718 | return Qnil; | |
62476adc | 1719 | } |
f4f04cee RS |
1720 | |
1721 | DEFUN ("local-variable-if-set-p", Flocal_variable_if_set_p, Slocal_variable_if_set_p, | |
8c1a1077 PJ |
1722 | 1, 2, 0, |
1723 | doc: /* Non-nil if VARIABLE will be local in buffer BUFFER if it is set there. | |
1724 | BUFFER defaults to the current buffer. */) | |
1725 | (variable, buffer) | |
d9c2a0f2 | 1726 | register Lisp_Object variable, buffer; |
f4f04cee RS |
1727 | { |
1728 | Lisp_Object valcontents; | |
1729 | register struct buffer *buf; | |
1730 | ||
1731 | if (NILP (buffer)) | |
1732 | buf = current_buffer; | |
1733 | else | |
1734 | { | |
b7826503 | 1735 | CHECK_BUFFER (buffer); |
f4f04cee RS |
1736 | buf = XBUFFER (buffer); |
1737 | } | |
1738 | ||
b7826503 | 1739 | CHECK_SYMBOL (variable); |
f4f04cee | 1740 | |
f35d5bad | 1741 | valcontents = SYMBOL_VALUE (variable); |
f4f04cee RS |
1742 | |
1743 | /* This means that make-variable-buffer-local was done. */ | |
1744 | if (BUFFER_LOCAL_VALUEP (valcontents)) | |
1745 | return Qt; | |
1746 | /* All these slots become local if they are set. */ | |
1747 | if (BUFFER_OBJFWDP (valcontents)) | |
1748 | return Qt; | |
1749 | if (SOME_BUFFER_LOCAL_VALUEP (valcontents)) | |
1750 | { | |
1751 | Lisp_Object tail, elt; | |
7539e11f | 1752 | for (tail = buf->local_var_alist; CONSP (tail); tail = XCDR (tail)) |
f4f04cee | 1753 | { |
7539e11f KR |
1754 | elt = XCAR (tail); |
1755 | if (EQ (variable, XCAR (elt))) | |
f4f04cee RS |
1756 | return Qt; |
1757 | } | |
1758 | } | |
1759 | return Qnil; | |
1760 | } | |
7921925c | 1761 | \f |
ffd56f97 JB |
1762 | /* Find the function at the end of a chain of symbol function indirections. */ |
1763 | ||
1764 | /* If OBJECT is a symbol, find the end of its function chain and | |
1765 | return the value found there. If OBJECT is not a symbol, just | |
1766 | return it. If there is a cycle in the function chain, signal a | |
1767 | cyclic-function-indirection error. | |
1768 | ||
1769 | This is like Findirect_function, except that it doesn't signal an | |
1770 | error if the chain ends up unbound. */ | |
1771 | Lisp_Object | |
a2932990 | 1772 | indirect_function (object) |
62476adc | 1773 | register Lisp_Object object; |
ffd56f97 | 1774 | { |
eb8c3be9 | 1775 | Lisp_Object tortoise, hare; |
ffd56f97 | 1776 | |
eb8c3be9 | 1777 | hare = tortoise = object; |
ffd56f97 JB |
1778 | |
1779 | for (;;) | |
1780 | { | |
e9ebc175 | 1781 | if (!SYMBOLP (hare) || EQ (hare, Qunbound)) |
ffd56f97 JB |
1782 | break; |
1783 | hare = XSYMBOL (hare)->function; | |
e9ebc175 | 1784 | if (!SYMBOLP (hare) || EQ (hare, Qunbound)) |
ffd56f97 JB |
1785 | break; |
1786 | hare = XSYMBOL (hare)->function; | |
1787 | ||
eb8c3be9 | 1788 | tortoise = XSYMBOL (tortoise)->function; |
ffd56f97 | 1789 | |
eb8c3be9 | 1790 | if (EQ (hare, tortoise)) |
ffd56f97 JB |
1791 | Fsignal (Qcyclic_function_indirection, Fcons (object, Qnil)); |
1792 | } | |
1793 | ||
1794 | return hare; | |
1795 | } | |
1796 | ||
1797 | DEFUN ("indirect-function", Findirect_function, Sindirect_function, 1, 1, 0, | |
8c1a1077 PJ |
1798 | doc: /* Return the function at the end of OBJECT's function chain. |
1799 | If OBJECT is a symbol, follow all function indirections and return the final | |
1800 | function binding. | |
1801 | If OBJECT is not a symbol, just return it. | |
1802 | Signal a void-function error if the final symbol is unbound. | |
1803 | Signal a cyclic-function-indirection error if there is a loop in the | |
1804 | function chain of symbols. */) | |
1805 | (object) | |
1806 | register Lisp_Object object; | |
ffd56f97 JB |
1807 | { |
1808 | Lisp_Object result; | |
1809 | ||
1810 | result = indirect_function (object); | |
1811 | ||
1812 | if (EQ (result, Qunbound)) | |
1813 | return Fsignal (Qvoid_function, Fcons (object, Qnil)); | |
1814 | return result; | |
1815 | } | |
1816 | \f | |
7921925c JB |
1817 | /* Extract and set vector and string elements */ |
1818 | ||
1819 | DEFUN ("aref", Faref, Saref, 2, 2, 0, | |
8c1a1077 PJ |
1820 | doc: /* Return the element of ARRAY at index IDX. |
1821 | ARRAY may be a vector, a string, a char-table, a bool-vector, | |
1822 | or a byte-code object. IDX starts at 0. */) | |
1823 | (array, idx) | |
7921925c JB |
1824 | register Lisp_Object array; |
1825 | Lisp_Object idx; | |
1826 | { | |
1827 | register int idxval; | |
1828 | ||
b7826503 | 1829 | CHECK_NUMBER (idx); |
7921925c | 1830 | idxval = XINT (idx); |
e9ebc175 | 1831 | if (STRINGP (array)) |
7921925c | 1832 | { |
25638b07 RS |
1833 | int c, idxval_byte; |
1834 | ||
c24e4efe KH |
1835 | if (idxval < 0 || idxval >= XSTRING (array)->size) |
1836 | args_out_of_range (array, idx); | |
25638b07 RS |
1837 | if (! STRING_MULTIBYTE (array)) |
1838 | return make_number ((unsigned char) XSTRING (array)->data[idxval]); | |
1839 | idxval_byte = string_char_to_byte (array, idxval); | |
1840 | ||
1841 | c = STRING_CHAR (&XSTRING (array)->data[idxval_byte], | |
fc932ac6 | 1842 | STRING_BYTES (XSTRING (array)) - idxval_byte); |
25638b07 | 1843 | return make_number (c); |
7921925c | 1844 | } |
4d276982 RS |
1845 | else if (BOOL_VECTOR_P (array)) |
1846 | { | |
1847 | int val; | |
4d276982 RS |
1848 | |
1849 | if (idxval < 0 || idxval >= XBOOL_VECTOR (array)->size) | |
1850 | args_out_of_range (array, idx); | |
1851 | ||
68be917d KH |
1852 | val = (unsigned char) XBOOL_VECTOR (array)->data[idxval / BITS_PER_CHAR]; |
1853 | return (val & (1 << (idxval % BITS_PER_CHAR)) ? Qt : Qnil); | |
4d276982 RS |
1854 | } |
1855 | else if (CHAR_TABLE_P (array)) | |
1856 | { | |
1857 | Lisp_Object val; | |
1858 | ||
6bbd7a29 GM |
1859 | val = Qnil; |
1860 | ||
4d276982 RS |
1861 | if (idxval < 0) |
1862 | args_out_of_range (array, idx); | |
ab5c3f93 | 1863 | if (idxval < CHAR_TABLE_ORDINARY_SLOTS) |
8313c4e7 | 1864 | { |
39e16e51 | 1865 | /* For ASCII and 8-bit European characters, the element is |
3a6cf6bd | 1866 | stored in the top table. */ |
8313c4e7 KH |
1867 | val = XCHAR_TABLE (array)->contents[idxval]; |
1868 | if (NILP (val)) | |
1869 | val = XCHAR_TABLE (array)->defalt; | |
1870 | while (NILP (val)) /* Follow parents until we find some value. */ | |
1871 | { | |
1872 | array = XCHAR_TABLE (array)->parent; | |
1873 | if (NILP (array)) | |
1874 | return Qnil; | |
1875 | val = XCHAR_TABLE (array)->contents[idxval]; | |
1876 | if (NILP (val)) | |
1877 | val = XCHAR_TABLE (array)->defalt; | |
1878 | } | |
1879 | return val; | |
1880 | } | |
4d276982 RS |
1881 | else |
1882 | { | |
39e16e51 KH |
1883 | int code[4], i; |
1884 | Lisp_Object sub_table; | |
8313c4e7 | 1885 | |
37309c9d | 1886 | SPLIT_CHAR (idxval, code[0], code[1], code[2]); |
e19c1eb4 KH |
1887 | if (code[1] < 32) code[1] = -1; |
1888 | else if (code[2] < 32) code[2] = -1; | |
1889 | ||
39e16e51 KH |
1890 | /* Here, the possible range of CODE[0] (== charset ID) is |
1891 | 128..MAX_CHARSET. Since the top level char table contains | |
1892 | data for multibyte characters after 256th element, we must | |
1893 | increment CODE[0] by 128 to get a correct index. */ | |
1894 | code[0] += 128; | |
1895 | code[3] = -1; /* anchor */ | |
4d276982 RS |
1896 | |
1897 | try_parent_char_table: | |
39e16e51 KH |
1898 | sub_table = array; |
1899 | for (i = 0; code[i] >= 0; i++) | |
4d276982 | 1900 | { |
39e16e51 KH |
1901 | val = XCHAR_TABLE (sub_table)->contents[code[i]]; |
1902 | if (SUB_CHAR_TABLE_P (val)) | |
1903 | sub_table = val; | |
1904 | else | |
8313c4e7 | 1905 | { |
39e16e51 KH |
1906 | if (NILP (val)) |
1907 | val = XCHAR_TABLE (sub_table)->defalt; | |
1908 | if (NILP (val)) | |
1909 | { | |
1910 | array = XCHAR_TABLE (array)->parent; | |
1911 | if (!NILP (array)) | |
1912 | goto try_parent_char_table; | |
1913 | } | |
1914 | return val; | |
8313c4e7 | 1915 | } |
4d276982 | 1916 | } |
39e16e51 KH |
1917 | /* Here, VAL is a sub char table. We try the default value |
1918 | and parent. */ | |
1919 | val = XCHAR_TABLE (val)->defalt; | |
8313c4e7 | 1920 | if (NILP (val)) |
4d276982 RS |
1921 | { |
1922 | array = XCHAR_TABLE (array)->parent; | |
39e16e51 KH |
1923 | if (!NILP (array)) |
1924 | goto try_parent_char_table; | |
4d276982 | 1925 | } |
4d276982 RS |
1926 | return val; |
1927 | } | |
4d276982 | 1928 | } |
7921925c | 1929 | else |
c24e4efe | 1930 | { |
6bbd7a29 | 1931 | int size = 0; |
7f358972 RS |
1932 | if (VECTORP (array)) |
1933 | size = XVECTOR (array)->size; | |
1934 | else if (COMPILEDP (array)) | |
1935 | size = XVECTOR (array)->size & PSEUDOVECTOR_SIZE_MASK; | |
1936 | else | |
1937 | wrong_type_argument (Qarrayp, array); | |
1938 | ||
1939 | if (idxval < 0 || idxval >= size) | |
c24e4efe KH |
1940 | args_out_of_range (array, idx); |
1941 | return XVECTOR (array)->contents[idxval]; | |
1942 | } | |
7921925c JB |
1943 | } |
1944 | ||
3c9de1af KH |
1945 | /* Don't use alloca for relocating string data larger than this, lest |
1946 | we overflow their stack. The value is the same as what used in | |
1947 | fns.c for base64 handling. */ | |
1948 | #define MAX_ALLOCA 16*1024 | |
1949 | ||
7921925c | 1950 | DEFUN ("aset", Faset, Saset, 3, 3, 0, |
8c1a1077 PJ |
1951 | doc: /* Store into the element of ARRAY at index IDX the value NEWELT. |
1952 | ARRAY may be a vector, a string, a char-table or a bool-vector. | |
1953 | IDX starts at 0. */) | |
1954 | (array, idx, newelt) | |
7921925c JB |
1955 | register Lisp_Object array; |
1956 | Lisp_Object idx, newelt; | |
1957 | { | |
1958 | register int idxval; | |
1959 | ||
b7826503 | 1960 | CHECK_NUMBER (idx); |
7921925c | 1961 | idxval = XINT (idx); |
4d276982 RS |
1962 | if (!VECTORP (array) && !STRINGP (array) && !BOOL_VECTOR_P (array) |
1963 | && ! CHAR_TABLE_P (array)) | |
7921925c | 1964 | array = wrong_type_argument (Qarrayp, array); |
7921925c JB |
1965 | CHECK_IMPURE (array); |
1966 | ||
e9ebc175 | 1967 | if (VECTORP (array)) |
c24e4efe KH |
1968 | { |
1969 | if (idxval < 0 || idxval >= XVECTOR (array)->size) | |
1970 | args_out_of_range (array, idx); | |
1971 | XVECTOR (array)->contents[idxval] = newelt; | |
1972 | } | |
4d276982 RS |
1973 | else if (BOOL_VECTOR_P (array)) |
1974 | { | |
1975 | int val; | |
4d276982 RS |
1976 | |
1977 | if (idxval < 0 || idxval >= XBOOL_VECTOR (array)->size) | |
1978 | args_out_of_range (array, idx); | |
1979 | ||
68be917d | 1980 | val = (unsigned char) XBOOL_VECTOR (array)->data[idxval / BITS_PER_CHAR]; |
4d276982 RS |
1981 | |
1982 | if (! NILP (newelt)) | |
68be917d | 1983 | val |= 1 << (idxval % BITS_PER_CHAR); |
4d276982 | 1984 | else |
68be917d KH |
1985 | val &= ~(1 << (idxval % BITS_PER_CHAR)); |
1986 | XBOOL_VECTOR (array)->data[idxval / BITS_PER_CHAR] = val; | |
4d276982 RS |
1987 | } |
1988 | else if (CHAR_TABLE_P (array)) | |
1989 | { | |
4d276982 RS |
1990 | if (idxval < 0) |
1991 | args_out_of_range (array, idx); | |
ab5c3f93 | 1992 | if (idxval < CHAR_TABLE_ORDINARY_SLOTS) |
8313c4e7 | 1993 | XCHAR_TABLE (array)->contents[idxval] = newelt; |
4d276982 RS |
1994 | else |
1995 | { | |
39e16e51 | 1996 | int code[4], i; |
8313c4e7 | 1997 | Lisp_Object val; |
4d276982 | 1998 | |
37309c9d | 1999 | SPLIT_CHAR (idxval, code[0], code[1], code[2]); |
e19c1eb4 KH |
2000 | if (code[1] < 32) code[1] = -1; |
2001 | else if (code[2] < 32) code[2] = -1; | |
2002 | ||
39e16e51 KH |
2003 | /* See the comment of the corresponding part in Faref. */ |
2004 | code[0] += 128; | |
2005 | code[3] = -1; /* anchor */ | |
2006 | for (i = 0; code[i + 1] >= 0; i++) | |
8313c4e7 | 2007 | { |
39e16e51 KH |
2008 | val = XCHAR_TABLE (array)->contents[code[i]]; |
2009 | if (SUB_CHAR_TABLE_P (val)) | |
8313c4e7 KH |
2010 | array = val; |
2011 | else | |
3c8fccc3 RS |
2012 | { |
2013 | Lisp_Object temp; | |
2014 | ||
2015 | /* VAL is a leaf. Create a sub char table with the | |
2016 | default value VAL or XCHAR_TABLE (array)->defalt | |
2017 | and look into it. */ | |
2018 | ||
2019 | temp = make_sub_char_table (NILP (val) | |
2020 | ? XCHAR_TABLE (array)->defalt | |
2021 | : val); | |
2022 | XCHAR_TABLE (array)->contents[code[i]] = temp; | |
2023 | array = temp; | |
2024 | } | |
8313c4e7 | 2025 | } |
39e16e51 | 2026 | XCHAR_TABLE (array)->contents[code[i]] = newelt; |
4d276982 | 2027 | } |
4d276982 | 2028 | } |
25638b07 RS |
2029 | else if (STRING_MULTIBYTE (array)) |
2030 | { | |
3c9de1af KH |
2031 | int idxval_byte, prev_bytes, new_bytes; |
2032 | unsigned char workbuf[MAX_MULTIBYTE_LENGTH], *p0 = workbuf, *p1; | |
25638b07 RS |
2033 | |
2034 | if (idxval < 0 || idxval >= XSTRING (array)->size) | |
2035 | args_out_of_range (array, idx); | |
b7826503 | 2036 | CHECK_NUMBER (newelt); |
25638b07 RS |
2037 | |
2038 | idxval_byte = string_char_to_byte (array, idxval); | |
3c9de1af KH |
2039 | p1 = &XSTRING (array)->data[idxval_byte]; |
2040 | PARSE_MULTIBYTE_SEQ (p1, nbytes - idxval_byte, prev_bytes); | |
2041 | new_bytes = CHAR_STRING (XINT (newelt), p0); | |
2042 | if (prev_bytes != new_bytes) | |
2043 | { | |
2044 | /* We must relocate the string data. */ | |
2045 | int nchars = XSTRING (array)->size; | |
2046 | int nbytes = STRING_BYTES (XSTRING (array)); | |
2047 | unsigned char *str; | |
2048 | ||
2049 | str = (nbytes <= MAX_ALLOCA | |
2050 | ? (unsigned char *) alloca (nbytes) | |
2051 | : (unsigned char *) xmalloc (nbytes)); | |
2052 | bcopy (XSTRING (array)->data, str, nbytes); | |
2053 | allocate_string_data (XSTRING (array), nchars, | |
2054 | nbytes + new_bytes - prev_bytes); | |
2055 | bcopy (str, XSTRING (array)->data, idxval_byte); | |
2056 | p1 = XSTRING (array)->data + idxval_byte; | |
2057 | bcopy (str + idxval_byte + prev_bytes, p1 + new_bytes, | |
2058 | nbytes - (idxval_byte + prev_bytes)); | |
2059 | if (nbytes > MAX_ALLOCA) | |
2060 | xfree (str); | |
2061 | clear_string_char_byte_cache (); | |
2062 | } | |
2063 | while (new_bytes--) | |
2064 | *p1++ = *p0++; | |
25638b07 | 2065 | } |
7921925c JB |
2066 | else |
2067 | { | |
c24e4efe KH |
2068 | if (idxval < 0 || idxval >= XSTRING (array)->size) |
2069 | args_out_of_range (array, idx); | |
b7826503 | 2070 | CHECK_NUMBER (newelt); |
3c9de1af KH |
2071 | |
2072 | if (XINT (newelt) < 0 || SINGLE_BYTE_CHAR_P (XINT (newelt))) | |
2073 | XSTRING (array)->data[idxval] = XINT (newelt); | |
2074 | else | |
2075 | { | |
2076 | /* We must relocate the string data while converting it to | |
2077 | multibyte. */ | |
2078 | int idxval_byte, prev_bytes, new_bytes; | |
2079 | unsigned char workbuf[MAX_MULTIBYTE_LENGTH], *p0 = workbuf, *p1; | |
2080 | unsigned char *origstr = XSTRING (array)->data, *str; | |
2081 | int nchars, nbytes; | |
2082 | ||
2083 | nchars = XSTRING (array)->size; | |
2084 | nbytes = idxval_byte = count_size_as_multibyte (origstr, idxval); | |
2085 | nbytes += count_size_as_multibyte (origstr + idxval, | |
2086 | nchars - idxval); | |
2087 | str = (nbytes <= MAX_ALLOCA | |
2088 | ? (unsigned char *) alloca (nbytes) | |
2089 | : (unsigned char *) xmalloc (nbytes)); | |
2090 | copy_text (XSTRING (array)->data, str, nchars, 0, 1); | |
2091 | PARSE_MULTIBYTE_SEQ (str + idxval_byte, nbytes - idxval_byte, | |
2092 | prev_bytes); | |
2093 | new_bytes = CHAR_STRING (XINT (newelt), p0); | |
2094 | allocate_string_data (XSTRING (array), nchars, | |
2095 | nbytes + new_bytes - prev_bytes); | |
2096 | bcopy (str, XSTRING (array)->data, idxval_byte); | |
2097 | p1 = XSTRING (array)->data + idxval_byte; | |
2098 | while (new_bytes--) | |
2099 | *p1++ = *p0++; | |
2100 | bcopy (str + idxval_byte + prev_bytes, p1, | |
2101 | nbytes - (idxval_byte + prev_bytes)); | |
2102 | if (nbytes > MAX_ALLOCA) | |
2103 | xfree (str); | |
2104 | clear_string_char_byte_cache (); | |
2105 | } | |
7921925c JB |
2106 | } |
2107 | ||
2108 | return newelt; | |
2109 | } | |
7921925c JB |
2110 | \f |
2111 | /* Arithmetic functions */ | |
2112 | ||
2113 | enum comparison { equal, notequal, less, grtr, less_or_equal, grtr_or_equal }; | |
2114 | ||
2115 | Lisp_Object | |
2116 | arithcompare (num1, num2, comparison) | |
2117 | Lisp_Object num1, num2; | |
2118 | enum comparison comparison; | |
2119 | { | |
6bbd7a29 | 2120 | double f1 = 0, f2 = 0; |
7921925c JB |
2121 | int floatp = 0; |
2122 | ||
b7826503 PJ |
2123 | CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (num1); |
2124 | CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (num2); | |
7921925c | 2125 | |
e9ebc175 | 2126 | if (FLOATP (num1) || FLOATP (num2)) |
7921925c JB |
2127 | { |
2128 | floatp = 1; | |
7539e11f KR |
2129 | f1 = (FLOATP (num1)) ? XFLOAT_DATA (num1) : XINT (num1); |
2130 | f2 = (FLOATP (num2)) ? XFLOAT_DATA (num2) : XINT (num2); | |
7921925c | 2131 | } |
7921925c JB |
2132 | |
2133 | switch (comparison) | |
2134 | { | |
2135 | case equal: | |
2136 | if (floatp ? f1 == f2 : XINT (num1) == XINT (num2)) | |
2137 | return Qt; | |
2138 | return Qnil; | |
2139 | ||
2140 | case notequal: | |
2141 | if (floatp ? f1 != f2 : XINT (num1) != XINT (num2)) | |
2142 | return Qt; | |
2143 | return Qnil; | |
2144 | ||
2145 | case less: | |
2146 | if (floatp ? f1 < f2 : XINT (num1) < XINT (num2)) | |
2147 | return Qt; | |
2148 | return Qnil; | |
2149 | ||
2150 | case less_or_equal: | |
2151 | if (floatp ? f1 <= f2 : XINT (num1) <= XINT (num2)) | |
2152 | return Qt; | |
2153 | return Qnil; | |
2154 | ||
2155 | case grtr: | |
2156 | if (floatp ? f1 > f2 : XINT (num1) > XINT (num2)) | |
2157 | return Qt; | |
2158 | return Qnil; | |
2159 | ||
2160 | case grtr_or_equal: | |
2161 | if (floatp ? f1 >= f2 : XINT (num1) >= XINT (num2)) | |
2162 | return Qt; | |
2163 | return Qnil; | |
25e40a4b JB |
2164 | |
2165 | default: | |
2166 | abort (); | |
7921925c JB |
2167 | } |
2168 | } | |
2169 | ||
2170 | DEFUN ("=", Feqlsign, Seqlsign, 2, 2, 0, | |
8c1a1077 PJ |
2171 | doc: /* Return t if two args, both numbers or markers, are equal. */) |
2172 | (num1, num2) | |
7921925c JB |
2173 | register Lisp_Object num1, num2; |
2174 | { | |
2175 | return arithcompare (num1, num2, equal); | |
2176 | } | |
2177 | ||
2178 | DEFUN ("<", Flss, Slss, 2, 2, 0, | |
8c1a1077 PJ |
2179 | doc: /* Return t if first arg is less than second arg. Both must be numbers or markers. */) |
2180 | (num1, num2) | |
7921925c JB |
2181 | register Lisp_Object num1, num2; |
2182 | { | |
2183 | return arithcompare (num1, num2, less); | |
2184 | } | |
2185 | ||
2186 | DEFUN (">", Fgtr, Sgtr, 2, 2, 0, | |
8c1a1077 PJ |
2187 | doc: /* Return t if first arg is greater than second arg. Both must be numbers or markers. */) |
2188 | (num1, num2) | |
7921925c JB |
2189 | register Lisp_Object num1, num2; |
2190 | { | |
2191 | return arithcompare (num1, num2, grtr); | |
2192 | } | |
2193 | ||
2194 | DEFUN ("<=", Fleq, Sleq, 2, 2, 0, | |
8c1a1077 PJ |
2195 | doc: /* Return t if first arg is less than or equal to second arg. |
2196 | Both must be numbers or markers. */) | |
2197 | (num1, num2) | |
7921925c JB |
2198 | register Lisp_Object num1, num2; |
2199 | { | |
2200 | return arithcompare (num1, num2, less_or_equal); | |
2201 | } | |
2202 | ||
2203 | DEFUN (">=", Fgeq, Sgeq, 2, 2, 0, | |
8c1a1077 PJ |
2204 | doc: /* Return t if first arg is greater than or equal to second arg. |
2205 | Both must be numbers or markers. */) | |
2206 | (num1, num2) | |
7921925c JB |
2207 | register Lisp_Object num1, num2; |
2208 | { | |
2209 | return arithcompare (num1, num2, grtr_or_equal); | |
2210 | } | |
2211 | ||
2212 | DEFUN ("/=", Fneq, Sneq, 2, 2, 0, | |
8c1a1077 PJ |
2213 | doc: /* Return t if first arg is not equal to second arg. Both must be numbers or markers. */) |
2214 | (num1, num2) | |
7921925c JB |
2215 | register Lisp_Object num1, num2; |
2216 | { | |
2217 | return arithcompare (num1, num2, notequal); | |
2218 | } | |
2219 | ||
8c1a1077 PJ |
2220 | DEFUN ("zerop", Fzerop, Szerop, 1, 1, 0, |
2221 | doc: /* Return t if NUMBER is zero. */) | |
2222 | (number) | |
d9c2a0f2 | 2223 | register Lisp_Object number; |
7921925c | 2224 | { |
b7826503 | 2225 | CHECK_NUMBER_OR_FLOAT (number); |
7921925c | 2226 | |
d9c2a0f2 | 2227 | if (FLOATP (number)) |
7921925c | 2228 | { |
7539e11f | 2229 | if (XFLOAT_DATA (number) == 0.0) |
7921925c JB |
2230 | return Qt; |
2231 | return Qnil; | |
2232 | } | |
7921925c | 2233 | |
d9c2a0f2 | 2234 | if (!XINT (number)) |
7921925c JB |
2235 | return Qt; |
2236 | return Qnil; | |
2237 | } | |
2238 | \f | |
34f4f6c6 | 2239 | /* Convert between long values and pairs of Lisp integers. */ |
51cf3e31 JB |
2240 | |
2241 | Lisp_Object | |
2242 | long_to_cons (i) | |
2243 | unsigned long i; | |
2244 | { | |
2245 | unsigned int top = i >> 16; | |
2246 | unsigned int bot = i & 0xFFFF; | |
2247 | if (top == 0) | |
2248 | return make_number (bot); | |
b42cfa11 | 2249 | if (top == (unsigned long)-1 >> 16) |
51cf3e31 JB |
2250 | return Fcons (make_number (-1), make_number (bot)); |
2251 | return Fcons (make_number (top), make_number (bot)); | |
2252 | } | |
2253 | ||
2254 | unsigned long | |
2255 | cons_to_long (c) | |
2256 | Lisp_Object c; | |
2257 | { | |
878a80cc | 2258 | Lisp_Object top, bot; |
51cf3e31 JB |
2259 | if (INTEGERP (c)) |
2260 | return XINT (c); | |
7539e11f KR |
2261 | top = XCAR (c); |
2262 | bot = XCDR (c); | |
51cf3e31 | 2263 | if (CONSP (bot)) |
7539e11f | 2264 | bot = XCAR (bot); |
51cf3e31 JB |
2265 | return ((XINT (top) << 16) | XINT (bot)); |
2266 | } | |
2267 | \f | |
f2980264 | 2268 | DEFUN ("number-to-string", Fnumber_to_string, Snumber_to_string, 1, 1, 0, |
8c1a1077 PJ |
2269 | doc: /* Convert NUMBER to a string by printing it in decimal. |
2270 | Uses a minus sign if negative. | |
2271 | NUMBER may be an integer or a floating point number. */) | |
2272 | (number) | |
d9c2a0f2 | 2273 | Lisp_Object number; |
7921925c | 2274 | { |
6030ce64 | 2275 | char buffer[VALBITS]; |
7921925c | 2276 | |
b7826503 | 2277 | CHECK_NUMBER_OR_FLOAT (number); |
7921925c | 2278 | |
d9c2a0f2 | 2279 | if (FLOATP (number)) |
7921925c JB |
2280 | { |
2281 | char pigbuf[350]; /* see comments in float_to_string */ | |
2282 | ||
7539e11f | 2283 | float_to_string (pigbuf, XFLOAT_DATA (number)); |
7403b5c8 | 2284 | return build_string (pigbuf); |
7921925c | 2285 | } |
7921925c | 2286 | |
e6c82a8d | 2287 | if (sizeof (int) == sizeof (EMACS_INT)) |
d9c2a0f2 | 2288 | sprintf (buffer, "%d", XINT (number)); |
e6c82a8d | 2289 | else if (sizeof (long) == sizeof (EMACS_INT)) |
dd8daec5 | 2290 | sprintf (buffer, "%ld", (long) XINT (number)); |
e6c82a8d RS |
2291 | else |
2292 | abort (); | |
7921925c JB |
2293 | return build_string (buffer); |
2294 | } | |
2295 | ||
3883fbeb RS |
2296 | INLINE static int |
2297 | digit_to_number (character, base) | |
2298 | int character, base; | |
2299 | { | |
2300 | int digit; | |
2301 | ||
2302 | if (character >= '0' && character <= '9') | |
2303 | digit = character - '0'; | |
2304 | else if (character >= 'a' && character <= 'z') | |
2305 | digit = character - 'a' + 10; | |
2306 | else if (character >= 'A' && character <= 'Z') | |
2307 | digit = character - 'A' + 10; | |
2308 | else | |
2309 | return -1; | |
2310 | ||
2311 | if (digit >= base) | |
2312 | return -1; | |
2313 | else | |
2314 | return digit; | |
2315 | } | |
2316 | ||
2317 | DEFUN ("string-to-number", Fstring_to_number, Sstring_to_number, 1, 2, 0, | |
8c1a1077 PJ |
2318 | doc: /* Convert STRING to a number by parsing it as a decimal number. |
2319 | This parses both integers and floating point numbers. | |
2320 | It ignores leading spaces and tabs. | |
2321 | ||
2322 | If BASE, interpret STRING as a number in that base. If BASE isn't | |
2323 | present, base 10 is used. BASE must be between 2 and 16 (inclusive). | |
2324 | If the base used is not 10, floating point is not recognized. */) | |
2325 | (string, base) | |
3883fbeb | 2326 | register Lisp_Object string, base; |
7921925c | 2327 | { |
3883fbeb | 2328 | register unsigned char *p; |
342858a5 GM |
2329 | register int b; |
2330 | int sign = 1; | |
2331 | Lisp_Object val; | |
25e40a4b | 2332 | |
b7826503 | 2333 | CHECK_STRING (string); |
7921925c | 2334 | |
3883fbeb RS |
2335 | if (NILP (base)) |
2336 | b = 10; | |
2337 | else | |
2338 | { | |
b7826503 | 2339 | CHECK_NUMBER (base); |
3883fbeb RS |
2340 | b = XINT (base); |
2341 | if (b < 2 || b > 16) | |
2342 | Fsignal (Qargs_out_of_range, Fcons (base, Qnil)); | |
2343 | } | |
2344 | ||
25e40a4b JB |
2345 | /* Skip any whitespace at the front of the number. Some versions of |
2346 | atoi do this anyway, so we might as well make Emacs lisp consistent. */ | |
342858a5 | 2347 | p = XSTRING (string)->data; |
0a3e4d65 | 2348 | while (*p == ' ' || *p == '\t') |
25e40a4b JB |
2349 | p++; |
2350 | ||
3883fbeb RS |
2351 | if (*p == '-') |
2352 | { | |
342858a5 | 2353 | sign = -1; |
3883fbeb RS |
2354 | p++; |
2355 | } | |
2356 | else if (*p == '+') | |
2357 | p++; | |
2358 | ||
8e36ae7f | 2359 | if (isfloat_string (p) && b == 10) |
342858a5 GM |
2360 | val = make_float (sign * atof (p)); |
2361 | else | |
3883fbeb | 2362 | { |
342858a5 GM |
2363 | double v = 0; |
2364 | ||
2365 | while (1) | |
2366 | { | |
2367 | int digit = digit_to_number (*p++, b); | |
2368 | if (digit < 0) | |
2369 | break; | |
2370 | v = v * b + digit; | |
2371 | } | |
2372 | ||
cb938d46 | 2373 | val = make_fixnum_or_float (sign * v); |
3883fbeb | 2374 | } |
342858a5 GM |
2375 | |
2376 | return val; | |
7921925c | 2377 | } |
3883fbeb | 2378 | |
7403b5c8 | 2379 | \f |
7921925c | 2380 | enum arithop |
7a283f36 GM |
2381 | { |
2382 | Aadd, | |
2383 | Asub, | |
2384 | Amult, | |
2385 | Adiv, | |
2386 | Alogand, | |
2387 | Alogior, | |
2388 | Alogxor, | |
2389 | Amax, | |
2390 | Amin | |
2391 | }; | |
2392 | ||
2393 | static Lisp_Object float_arith_driver P_ ((double, int, enum arithop, | |
2394 | int, Lisp_Object *)); | |
ad8d56b9 | 2395 | extern Lisp_Object fmod_float (); |
b06faa91 | 2396 | |
7921925c | 2397 | Lisp_Object |
87fbf902 | 2398 | arith_driver (code, nargs, args) |
7921925c JB |
2399 | enum arithop code; |
2400 | int nargs; | |
2401 | register Lisp_Object *args; | |
2402 | { | |
2403 | register Lisp_Object val; | |
2404 | register int argnum; | |
7a283f36 | 2405 | register EMACS_INT accum = 0; |
5260234d | 2406 | register EMACS_INT next; |
7921925c | 2407 | |
0220c518 | 2408 | switch (SWITCH_ENUM_CAST (code)) |
7921925c JB |
2409 | { |
2410 | case Alogior: | |
2411 | case Alogxor: | |
2412 | case Aadd: | |
2413 | case Asub: | |
7a283f36 GM |
2414 | accum = 0; |
2415 | break; | |
7921925c | 2416 | case Amult: |
7a283f36 GM |
2417 | accum = 1; |
2418 | break; | |
7921925c | 2419 | case Alogand: |
7a283f36 GM |
2420 | accum = -1; |
2421 | break; | |
2422 | default: | |
2423 | break; | |
7921925c JB |
2424 | } |
2425 | ||
2426 | for (argnum = 0; argnum < nargs; argnum++) | |
2427 | { | |
7a283f36 GM |
2428 | /* Using args[argnum] as argument to CHECK_NUMBER_... */ |
2429 | val = args[argnum]; | |
b7826503 | 2430 | CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (val); |
7921925c | 2431 | |
7a283f36 GM |
2432 | if (FLOATP (val)) |
2433 | return float_arith_driver ((double) accum, argnum, code, | |
2434 | nargs, args); | |
2435 | args[argnum] = val; | |
7921925c | 2436 | next = XINT (args[argnum]); |
0220c518 | 2437 | switch (SWITCH_ENUM_CAST (code)) |
7921925c | 2438 | { |
7a283f36 GM |
2439 | case Aadd: |
2440 | accum += next; | |
2441 | break; | |
7921925c | 2442 | case Asub: |
e64981da | 2443 | accum = argnum ? accum - next : nargs == 1 ? - next : next; |
7921925c | 2444 | break; |
7a283f36 GM |
2445 | case Amult: |
2446 | accum *= next; | |
2447 | break; | |
7921925c | 2448 | case Adiv: |
7a283f36 GM |
2449 | if (!argnum) |
2450 | accum = next; | |
87fbf902 RS |
2451 | else |
2452 | { | |
2453 | if (next == 0) | |
2454 | Fsignal (Qarith_error, Qnil); | |
2455 | accum /= next; | |
2456 | } | |
7921925c | 2457 | break; |
7a283f36 GM |
2458 | case Alogand: |
2459 | accum &= next; | |
2460 | break; | |
2461 | case Alogior: | |
2462 | accum |= next; | |
2463 | break; | |
2464 | case Alogxor: | |
2465 | accum ^= next; | |
2466 | break; | |
2467 | case Amax: | |
2468 | if (!argnum || next > accum) | |
2469 | accum = next; | |
2470 | break; | |
2471 | case Amin: | |
2472 | if (!argnum || next < accum) | |
2473 | accum = next; | |
2474 | break; | |
7921925c JB |
2475 | } |
2476 | } | |
2477 | ||
f187f1f7 | 2478 | XSETINT (val, accum); |
7921925c JB |
2479 | return val; |
2480 | } | |
2481 | ||
1a2f2d33 KH |
2482 | #undef isnan |
2483 | #define isnan(x) ((x) != (x)) | |
2484 | ||
7a283f36 | 2485 | static Lisp_Object |
7921925c JB |
2486 | float_arith_driver (accum, argnum, code, nargs, args) |
2487 | double accum; | |
2488 | register int argnum; | |
2489 | enum arithop code; | |
2490 | int nargs; | |
2491 | register Lisp_Object *args; | |
2492 | { | |
2493 | register Lisp_Object val; | |
2494 | double next; | |
7403b5c8 | 2495 | |
7921925c JB |
2496 | for (; argnum < nargs; argnum++) |
2497 | { | |
2498 | val = args[argnum]; /* using args[argnum] as argument to CHECK_NUMBER_... */ | |
b7826503 | 2499 | CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (val); |
7921925c | 2500 | |
e9ebc175 | 2501 | if (FLOATP (val)) |
7921925c | 2502 | { |
7539e11f | 2503 | next = XFLOAT_DATA (val); |
7921925c JB |
2504 | } |
2505 | else | |
2506 | { | |
2507 | args[argnum] = val; /* runs into a compiler bug. */ | |
2508 | next = XINT (args[argnum]); | |
2509 | } | |
0220c518 | 2510 | switch (SWITCH_ENUM_CAST (code)) |
7921925c JB |
2511 | { |
2512 | case Aadd: | |
2513 | accum += next; | |
2514 | break; | |
2515 | case Asub: | |
e64981da | 2516 | accum = argnum ? accum - next : nargs == 1 ? - next : next; |
7921925c JB |
2517 | break; |
2518 | case Amult: | |
2519 | accum *= next; | |
2520 | break; | |
2521 | case Adiv: | |
2522 | if (!argnum) | |
2523 | accum = next; | |
2524 | else | |
87fbf902 | 2525 | { |
ad8d56b9 | 2526 | if (! IEEE_FLOATING_POINT && next == 0) |
87fbf902 RS |
2527 | Fsignal (Qarith_error, Qnil); |
2528 | accum /= next; | |
2529 | } | |
7921925c JB |
2530 | break; |
2531 | case Alogand: | |
2532 | case Alogior: | |
2533 | case Alogxor: | |
2534 | return wrong_type_argument (Qinteger_or_marker_p, val); | |
2535 | case Amax: | |
1a2f2d33 | 2536 | if (!argnum || isnan (next) || next > accum) |
7921925c JB |
2537 | accum = next; |
2538 | break; | |
2539 | case Amin: | |
1a2f2d33 | 2540 | if (!argnum || isnan (next) || next < accum) |
7921925c JB |
2541 | accum = next; |
2542 | break; | |
2543 | } | |
2544 | } | |
2545 | ||
2546 | return make_float (accum); | |
2547 | } | |
cc94f3b2 | 2548 | |
7921925c JB |
2549 | |
2550 | DEFUN ("+", Fplus, Splus, 0, MANY, 0, | |
8c1a1077 PJ |
2551 | doc: /* Return sum of any number of arguments, which are numbers or markers. |
2552 | usage: (+ &rest NUMBERS-OR-MARKERS) */) | |
2553 | (nargs, args) | |
7921925c JB |
2554 | int nargs; |
2555 | Lisp_Object *args; | |
2556 | { | |
2557 | return arith_driver (Aadd, nargs, args); | |
2558 | } | |
2559 | ||
2560 | DEFUN ("-", Fminus, Sminus, 0, MANY, 0, | |
8c1a1077 PJ |
2561 | doc: /* Negate number or subtract numbers or markers. |
2562 | With one arg, negates it. With more than one arg, | |
f44fba9e | 2563 | subtracts all but the first from the first. |
8c1a1077 PJ |
2564 | usage: (- &optional NUMBER-OR-MARKER &rest MORE-NUMBERS-OR-MARKERS) */) |
2565 | (nargs, args) | |
7921925c JB |
2566 | int nargs; |
2567 | Lisp_Object *args; | |
2568 | { | |
2569 | return arith_driver (Asub, nargs, args); | |
2570 | } | |
2571 | ||
2572 | DEFUN ("*", Ftimes, Stimes, 0, MANY, 0, | |
8c1a1077 PJ |
2573 | doc: /* Returns product of any number of arguments, which are numbers or markers. |
2574 | usage: (* &rest NUMBERS-OR-MARKERS) */) | |
2575 | (nargs, args) | |
7921925c JB |
2576 | int nargs; |
2577 | Lisp_Object *args; | |
2578 | { | |
2579 | return arith_driver (Amult, nargs, args); | |
2580 | } | |
2581 | ||
2582 | DEFUN ("/", Fquo, Squo, 2, MANY, 0, | |
8c1a1077 | 2583 | doc: /* Returns first argument divided by all the remaining arguments. |
f44fba9e | 2584 | The arguments must be numbers or markers. |
8c1a1077 PJ |
2585 | usage: (/ DIVIDEND DIVISOR &rest DIVISORS) */) |
2586 | (nargs, args) | |
7921925c JB |
2587 | int nargs; |
2588 | Lisp_Object *args; | |
2589 | { | |
2590 | return arith_driver (Adiv, nargs, args); | |
2591 | } | |
2592 | ||
2593 | DEFUN ("%", Frem, Srem, 2, 2, 0, | |
8c1a1077 PJ |
2594 | doc: /* Returns remainder of X divided by Y. |
2595 | Both must be integers or markers. */) | |
2596 | (x, y) | |
d9c2a0f2 | 2597 | register Lisp_Object x, y; |
7921925c JB |
2598 | { |
2599 | Lisp_Object val; | |
2600 | ||
b7826503 PJ |
2601 | CHECK_NUMBER_COERCE_MARKER (x); |
2602 | CHECK_NUMBER_COERCE_MARKER (y); | |
7921925c | 2603 | |
d9c2a0f2 | 2604 | if (XFASTINT (y) == 0) |
87fbf902 RS |
2605 | Fsignal (Qarith_error, Qnil); |
2606 | ||
d9c2a0f2 | 2607 | XSETINT (val, XINT (x) % XINT (y)); |
7921925c JB |
2608 | return val; |
2609 | } | |
2610 | ||
1d66a5fa KH |
2611 | #ifndef HAVE_FMOD |
2612 | double | |
2613 | fmod (f1, f2) | |
2614 | double f1, f2; | |
2615 | { | |
bc1c9d7e PE |
2616 | double r = f1; |
2617 | ||
fa43b1e8 KH |
2618 | if (f2 < 0.0) |
2619 | f2 = -f2; | |
bc1c9d7e PE |
2620 | |
2621 | /* If the magnitude of the result exceeds that of the divisor, or | |
2622 | the sign of the result does not agree with that of the dividend, | |
2623 | iterate with the reduced value. This does not yield a | |
2624 | particularly accurate result, but at least it will be in the | |
2625 | range promised by fmod. */ | |
2626 | do | |
2627 | r -= f2 * floor (r / f2); | |
2628 | while (f2 <= (r < 0 ? -r : r) || ((r < 0) != (f1 < 0) && ! isnan (r))); | |
2629 | ||
2630 | return r; | |
1d66a5fa KH |
2631 | } |
2632 | #endif /* ! HAVE_FMOD */ | |
2633 | ||
44fa9da5 | 2634 | DEFUN ("mod", Fmod, Smod, 2, 2, 0, |
8c1a1077 PJ |
2635 | doc: /* Returns X modulo Y. |
2636 | The result falls between zero (inclusive) and Y (exclusive). | |
2637 | Both X and Y must be numbers or markers. */) | |
2638 | (x, y) | |
d9c2a0f2 | 2639 | register Lisp_Object x, y; |
44fa9da5 PE |
2640 | { |
2641 | Lisp_Object val; | |
5260234d | 2642 | EMACS_INT i1, i2; |
44fa9da5 | 2643 | |
b7826503 PJ |
2644 | CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (x); |
2645 | CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (y); | |
44fa9da5 | 2646 | |
d9c2a0f2 | 2647 | if (FLOATP (x) || FLOATP (y)) |
ad8d56b9 PE |
2648 | return fmod_float (x, y); |
2649 | ||
d9c2a0f2 EN |
2650 | i1 = XINT (x); |
2651 | i2 = XINT (y); | |
44fa9da5 PE |
2652 | |
2653 | if (i2 == 0) | |
2654 | Fsignal (Qarith_error, Qnil); | |
7403b5c8 | 2655 | |
44fa9da5 PE |
2656 | i1 %= i2; |
2657 | ||
2658 | /* If the "remainder" comes out with the wrong sign, fix it. */ | |
04f7ec69 | 2659 | if (i2 < 0 ? i1 > 0 : i1 < 0) |
44fa9da5 PE |
2660 | i1 += i2; |
2661 | ||
f187f1f7 | 2662 | XSETINT (val, i1); |
44fa9da5 PE |
2663 | return val; |
2664 | } | |
2665 | ||
7921925c | 2666 | DEFUN ("max", Fmax, Smax, 1, MANY, 0, |
8c1a1077 | 2667 | doc: /* Return largest of all the arguments (which must be numbers or markers). |
f44fba9e | 2668 | The value is always a number; markers are converted to numbers. |
8c1a1077 PJ |
2669 | usage: (max NUMBER-OR-MARKER &rest NUMBERS-OR-MARKERS) */) |
2670 | (nargs, args) | |
7921925c JB |
2671 | int nargs; |
2672 | Lisp_Object *args; | |
2673 | { | |
2674 | return arith_driver (Amax, nargs, args); | |
2675 | } | |
2676 | ||
2677 | DEFUN ("min", Fmin, Smin, 1, MANY, 0, | |
8c1a1077 | 2678 | doc: /* Return smallest of all the arguments (which must be numbers or markers). |
f44fba9e | 2679 | The value is always a number; markers are converted to numbers. |
8c1a1077 PJ |
2680 | usage: (min NUMBER-OR-MARKER &rest NUMBERS-OR-MARKERS) */) |
2681 | (nargs, args) | |
7921925c JB |
2682 | int nargs; |
2683 | Lisp_Object *args; | |
2684 | { | |
2685 | return arith_driver (Amin, nargs, args); | |
2686 | } | |
2687 | ||
2688 | DEFUN ("logand", Flogand, Slogand, 0, MANY, 0, | |
8c1a1077 | 2689 | doc: /* Return bitwise-and of all the arguments. |
f44fba9e | 2690 | Arguments may be integers, or markers converted to integers. |
8c1a1077 PJ |
2691 | usage: (logand &rest INTS-OR-MARKERS) */) |
2692 | (nargs, args) | |
7921925c JB |
2693 | int nargs; |
2694 | Lisp_Object *args; | |
2695 | { | |
2696 | return arith_driver (Alogand, nargs, args); | |
2697 | } | |
2698 | ||
2699 | DEFUN ("logior", Flogior, Slogior, 0, MANY, 0, | |
8c1a1077 | 2700 | doc: /* Return bitwise-or of all the arguments. |
f44fba9e | 2701 | Arguments may be integers, or markers converted to integers. |
8c1a1077 PJ |
2702 | usage: (logior &rest INTS-OR-MARKERS) */) |
2703 | (nargs, args) | |
7921925c JB |
2704 | int nargs; |
2705 | Lisp_Object *args; | |
2706 | { | |
2707 | return arith_driver (Alogior, nargs, args); | |
2708 | } | |
2709 | ||
2710 | DEFUN ("logxor", Flogxor, Slogxor, 0, MANY, 0, | |
8c1a1077 | 2711 | doc: /* Return bitwise-exclusive-or of all the arguments. |
f44fba9e | 2712 | Arguments may be integers, or markers converted to integers. |
8c1a1077 PJ |
2713 | usage: (logxor &rest INTS-OR-MARKERS) */) |
2714 | (nargs, args) | |
7921925c JB |
2715 | int nargs; |
2716 | Lisp_Object *args; | |
2717 | { | |
2718 | return arith_driver (Alogxor, nargs, args); | |
2719 | } | |
2720 | ||
2721 | DEFUN ("ash", Fash, Sash, 2, 2, 0, | |
8c1a1077 PJ |
2722 | doc: /* Return VALUE with its bits shifted left by COUNT. |
2723 | If COUNT is negative, shifting is actually to the right. | |
2724 | In this case, the sign bit is duplicated. */) | |
2725 | (value, count) | |
3b9f7964 | 2726 | register Lisp_Object value, count; |
7921925c JB |
2727 | { |
2728 | register Lisp_Object val; | |
2729 | ||
b7826503 PJ |
2730 | CHECK_NUMBER (value); |
2731 | CHECK_NUMBER (count); | |
7921925c | 2732 | |
81d70626 RS |
2733 | if (XINT (count) >= BITS_PER_EMACS_INT) |
2734 | XSETINT (val, 0); | |
2735 | else if (XINT (count) > 0) | |
3d9652eb | 2736 | XSETINT (val, XINT (value) << XFASTINT (count)); |
81d70626 RS |
2737 | else if (XINT (count) <= -BITS_PER_EMACS_INT) |
2738 | XSETINT (val, XINT (value) < 0 ? -1 : 0); | |
7921925c | 2739 | else |
3d9652eb | 2740 | XSETINT (val, XINT (value) >> -XINT (count)); |
7921925c JB |
2741 | return val; |
2742 | } | |
2743 | ||
2744 | DEFUN ("lsh", Flsh, Slsh, 2, 2, 0, | |
8c1a1077 PJ |
2745 | doc: /* Return VALUE with its bits shifted left by COUNT. |
2746 | If COUNT is negative, shifting is actually to the right. | |
2747 | In this case, zeros are shifted in on the left. */) | |
2748 | (value, count) | |
3d9652eb | 2749 | register Lisp_Object value, count; |
7921925c JB |
2750 | { |
2751 | register Lisp_Object val; | |
2752 | ||
b7826503 PJ |
2753 | CHECK_NUMBER (value); |
2754 | CHECK_NUMBER (count); | |
7921925c | 2755 | |
81d70626 RS |
2756 | if (XINT (count) >= BITS_PER_EMACS_INT) |
2757 | XSETINT (val, 0); | |
2758 | else if (XINT (count) > 0) | |
3d9652eb | 2759 | XSETINT (val, (EMACS_UINT) XUINT (value) << XFASTINT (count)); |
81d70626 RS |
2760 | else if (XINT (count) <= -BITS_PER_EMACS_INT) |
2761 | XSETINT (val, 0); | |
7921925c | 2762 | else |
3d9652eb | 2763 | XSETINT (val, (EMACS_UINT) XUINT (value) >> -XINT (count)); |
7921925c JB |
2764 | return val; |
2765 | } | |
2766 | ||
2767 | DEFUN ("1+", Fadd1, Sadd1, 1, 1, 0, | |
8c1a1077 PJ |
2768 | doc: /* Return NUMBER plus one. NUMBER may be a number or a marker. |
2769 | Markers are converted to integers. */) | |
2770 | (number) | |
d9c2a0f2 | 2771 | register Lisp_Object number; |
7921925c | 2772 | { |
b7826503 | 2773 | CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (number); |
7921925c | 2774 | |
d9c2a0f2 | 2775 | if (FLOATP (number)) |
7539e11f | 2776 | return (make_float (1.0 + XFLOAT_DATA (number))); |
7921925c | 2777 | |
d9c2a0f2 EN |
2778 | XSETINT (number, XINT (number) + 1); |
2779 | return number; | |
7921925c JB |
2780 | } |
2781 | ||
2782 | DEFUN ("1-", Fsub1, Ssub1, 1, 1, 0, | |
8c1a1077 PJ |
2783 | doc: /* Return NUMBER minus one. NUMBER may be a number or a marker. |
2784 | Markers are converted to integers. */) | |
2785 | (number) | |
d9c2a0f2 | 2786 | register Lisp_Object number; |
7921925c | 2787 | { |
b7826503 | 2788 | CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (number); |
7921925c | 2789 | |
d9c2a0f2 | 2790 | if (FLOATP (number)) |
7539e11f | 2791 | return (make_float (-1.0 + XFLOAT_DATA (number))); |
7921925c | 2792 | |
d9c2a0f2 EN |
2793 | XSETINT (number, XINT (number) - 1); |
2794 | return number; | |
7921925c JB |
2795 | } |
2796 | ||
2797 | DEFUN ("lognot", Flognot, Slognot, 1, 1, 0, | |
8c1a1077 PJ |
2798 | doc: /* Return the bitwise complement of NUMBER. NUMBER must be an integer. */) |
2799 | (number) | |
d9c2a0f2 | 2800 | register Lisp_Object number; |
7921925c | 2801 | { |
b7826503 | 2802 | CHECK_NUMBER (number); |
53924017 | 2803 | XSETINT (number, ~XINT (number)); |
d9c2a0f2 | 2804 | return number; |
7921925c JB |
2805 | } |
2806 | \f | |
2807 | void | |
2808 | syms_of_data () | |
2809 | { | |
6315e761 RS |
2810 | Lisp_Object error_tail, arith_tail; |
2811 | ||
7921925c JB |
2812 | Qquote = intern ("quote"); |
2813 | Qlambda = intern ("lambda"); | |
2814 | Qsubr = intern ("subr"); | |
2815 | Qerror_conditions = intern ("error-conditions"); | |
2816 | Qerror_message = intern ("error-message"); | |
2817 | Qtop_level = intern ("top-level"); | |
2818 | ||
2819 | Qerror = intern ("error"); | |
2820 | Qquit = intern ("quit"); | |
2821 | Qwrong_type_argument = intern ("wrong-type-argument"); | |
2822 | Qargs_out_of_range = intern ("args-out-of-range"); | |
2823 | Qvoid_function = intern ("void-function"); | |
ffd56f97 | 2824 | Qcyclic_function_indirection = intern ("cyclic-function-indirection"); |
f35d5bad | 2825 | Qcyclic_variable_indirection = intern ("cyclic-variable-indirection"); |
7921925c JB |
2826 | Qvoid_variable = intern ("void-variable"); |
2827 | Qsetting_constant = intern ("setting-constant"); | |
2828 | Qinvalid_read_syntax = intern ("invalid-read-syntax"); | |
2829 | ||
2830 | Qinvalid_function = intern ("invalid-function"); | |
2831 | Qwrong_number_of_arguments = intern ("wrong-number-of-arguments"); | |
2832 | Qno_catch = intern ("no-catch"); | |
2833 | Qend_of_file = intern ("end-of-file"); | |
2834 | Qarith_error = intern ("arith-error"); | |
2835 | Qbeginning_of_buffer = intern ("beginning-of-buffer"); | |
2836 | Qend_of_buffer = intern ("end-of-buffer"); | |
2837 | Qbuffer_read_only = intern ("buffer-read-only"); | |
8f9f49d7 | 2838 | Qtext_read_only = intern ("text-read-only"); |
3b8819d6 | 2839 | Qmark_inactive = intern ("mark-inactive"); |
7921925c JB |
2840 | |
2841 | Qlistp = intern ("listp"); | |
2842 | Qconsp = intern ("consp"); | |
2843 | Qsymbolp = intern ("symbolp"); | |
cda9b832 | 2844 | Qkeywordp = intern ("keywordp"); |
7921925c JB |
2845 | Qintegerp = intern ("integerp"); |
2846 | Qnatnump = intern ("natnump"); | |
8e86942b | 2847 | Qwholenump = intern ("wholenump"); |
7921925c JB |
2848 | Qstringp = intern ("stringp"); |
2849 | Qarrayp = intern ("arrayp"); | |
2850 | Qsequencep = intern ("sequencep"); | |
2851 | Qbufferp = intern ("bufferp"); | |
2852 | Qvectorp = intern ("vectorp"); | |
2853 | Qchar_or_string_p = intern ("char-or-string-p"); | |
2854 | Qmarkerp = intern ("markerp"); | |
07bd8472 | 2855 | Qbuffer_or_string_p = intern ("buffer-or-string-p"); |
7921925c JB |
2856 | Qinteger_or_marker_p = intern ("integer-or-marker-p"); |
2857 | Qboundp = intern ("boundp"); | |
2858 | Qfboundp = intern ("fboundp"); | |
2859 | ||
7921925c JB |
2860 | Qfloatp = intern ("floatp"); |
2861 | Qnumberp = intern ("numberp"); | |
2862 | Qnumber_or_marker_p = intern ("number-or-marker-p"); | |
7921925c | 2863 | |
4d276982 | 2864 | Qchar_table_p = intern ("char-table-p"); |
7f0edce7 | 2865 | Qvector_or_char_table_p = intern ("vector-or-char-table-p"); |
4d276982 | 2866 | |
6f0e897f DL |
2867 | Qsubrp = intern ("subrp"); |
2868 | Qunevalled = intern ("unevalled"); | |
2869 | Qmany = intern ("many"); | |
2870 | ||
7921925c JB |
2871 | Qcdr = intern ("cdr"); |
2872 | ||
f845f2c9 | 2873 | /* Handle automatic advice activation */ |
ab297811 | 2874 | Qad_advice_info = intern ("ad-advice-info"); |
c1307a23 | 2875 | Qad_activate_internal = intern ("ad-activate-internal"); |
f845f2c9 | 2876 | |
6315e761 RS |
2877 | error_tail = Fcons (Qerror, Qnil); |
2878 | ||
7921925c JB |
2879 | /* ERROR is used as a signaler for random errors for which nothing else is right */ |
2880 | ||
2881 | Fput (Qerror, Qerror_conditions, | |
6315e761 | 2882 | error_tail); |
7921925c JB |
2883 | Fput (Qerror, Qerror_message, |
2884 | build_string ("error")); | |
2885 | ||
2886 | Fput (Qquit, Qerror_conditions, | |
2887 | Fcons (Qquit, Qnil)); | |
2888 | Fput (Qquit, Qerror_message, | |
2889 | build_string ("Quit")); | |
2890 | ||
2891 | Fput (Qwrong_type_argument, Qerror_conditions, | |
6315e761 | 2892 | Fcons (Qwrong_type_argument, error_tail)); |
7921925c JB |
2893 | Fput (Qwrong_type_argument, Qerror_message, |
2894 | build_string ("Wrong type argument")); | |
2895 | ||
2896 | Fput (Qargs_out_of_range, Qerror_conditions, | |
6315e761 | 2897 | Fcons (Qargs_out_of_range, error_tail)); |
7921925c JB |
2898 | Fput (Qargs_out_of_range, Qerror_message, |
2899 | build_string ("Args out of range")); | |
2900 | ||
2901 | Fput (Qvoid_function, Qerror_conditions, | |
6315e761 | 2902 | Fcons (Qvoid_function, error_tail)); |
7921925c JB |
2903 | Fput (Qvoid_function, Qerror_message, |
2904 | build_string ("Symbol's function definition is void")); | |
2905 | ||
ffd56f97 | 2906 | Fput (Qcyclic_function_indirection, Qerror_conditions, |
6315e761 | 2907 | Fcons (Qcyclic_function_indirection, error_tail)); |
ffd56f97 JB |
2908 | Fput (Qcyclic_function_indirection, Qerror_message, |
2909 | build_string ("Symbol's chain of function indirections contains a loop")); | |
2910 | ||
f35d5bad GM |
2911 | Fput (Qcyclic_variable_indirection, Qerror_conditions, |
2912 | Fcons (Qcyclic_variable_indirection, error_tail)); | |
2913 | Fput (Qcyclic_variable_indirection, Qerror_message, | |
2914 | build_string ("Symbol's chain of variable indirections contains a loop")); | |
2915 | ||
13d95cc0 GM |
2916 | Qcircular_list = intern ("circular-list"); |
2917 | staticpro (&Qcircular_list); | |
2918 | Fput (Qcircular_list, Qerror_conditions, | |
2919 | Fcons (Qcircular_list, error_tail)); | |
2920 | Fput (Qcircular_list, Qerror_message, | |
2921 | build_string ("List contains a loop")); | |
2922 | ||
7921925c | 2923 | Fput (Qvoid_variable, Qerror_conditions, |
6315e761 | 2924 | Fcons (Qvoid_variable, error_tail)); |
7921925c JB |
2925 | Fput (Qvoid_variable, Qerror_message, |
2926 | build_string ("Symbol's value as variable is void")); | |
2927 | ||
2928 | Fput (Qsetting_constant, Qerror_conditions, | |
6315e761 | 2929 | Fcons (Qsetting_constant, error_tail)); |
7921925c JB |
2930 | Fput (Qsetting_constant, Qerror_message, |
2931 | build_string ("Attempt to set a constant symbol")); | |
2932 | ||
2933 | Fput (Qinvalid_read_syntax, Qerror_conditions, | |
6315e761 | 2934 | Fcons (Qinvalid_read_syntax, error_tail)); |
7921925c JB |
2935 | Fput (Qinvalid_read_syntax, Qerror_message, |
2936 | build_string ("Invalid read syntax")); | |
2937 | ||
2938 | Fput (Qinvalid_function, Qerror_conditions, | |
6315e761 | 2939 | Fcons (Qinvalid_function, error_tail)); |
7921925c JB |
2940 | Fput (Qinvalid_function, Qerror_message, |
2941 | build_string ("Invalid function")); | |
2942 | ||
2943 | Fput (Qwrong_number_of_arguments, Qerror_conditions, | |
6315e761 | 2944 | Fcons (Qwrong_number_of_arguments, error_tail)); |
7921925c JB |
2945 | Fput (Qwrong_number_of_arguments, Qerror_message, |
2946 | build_string ("Wrong number of arguments")); | |
2947 | ||
2948 | Fput (Qno_catch, Qerror_conditions, | |
6315e761 | 2949 | Fcons (Qno_catch, error_tail)); |
7921925c JB |
2950 | Fput (Qno_catch, Qerror_message, |
2951 | build_string ("No catch for tag")); | |
2952 | ||
2953 | Fput (Qend_of_file, Qerror_conditions, | |
6315e761 | 2954 | Fcons (Qend_of_file, error_tail)); |
7921925c JB |
2955 | Fput (Qend_of_file, Qerror_message, |
2956 | build_string ("End of file during parsing")); | |
2957 | ||
6315e761 | 2958 | arith_tail = Fcons (Qarith_error, error_tail); |
7921925c | 2959 | Fput (Qarith_error, Qerror_conditions, |
6315e761 | 2960 | arith_tail); |
7921925c JB |
2961 | Fput (Qarith_error, Qerror_message, |
2962 | build_string ("Arithmetic error")); | |
2963 | ||
2964 | Fput (Qbeginning_of_buffer, Qerror_conditions, | |
6315e761 | 2965 | Fcons (Qbeginning_of_buffer, error_tail)); |
7921925c JB |
2966 | Fput (Qbeginning_of_buffer, Qerror_message, |
2967 | build_string ("Beginning of buffer")); | |
2968 | ||
2969 | Fput (Qend_of_buffer, Qerror_conditions, | |
6315e761 | 2970 | Fcons (Qend_of_buffer, error_tail)); |
7921925c JB |
2971 | Fput (Qend_of_buffer, Qerror_message, |
2972 | build_string ("End of buffer")); | |
2973 | ||
2974 | Fput (Qbuffer_read_only, Qerror_conditions, | |
6315e761 | 2975 | Fcons (Qbuffer_read_only, error_tail)); |
7921925c JB |
2976 | Fput (Qbuffer_read_only, Qerror_message, |
2977 | build_string ("Buffer is read-only")); | |
2978 | ||
8f9f49d7 GM |
2979 | Fput (Qtext_read_only, Qerror_conditions, |
2980 | Fcons (Qtext_read_only, error_tail)); | |
2981 | Fput (Qtext_read_only, Qerror_message, | |
2982 | build_string ("Text is read-only")); | |
2983 | ||
6315e761 RS |
2984 | Qrange_error = intern ("range-error"); |
2985 | Qdomain_error = intern ("domain-error"); | |
2986 | Qsingularity_error = intern ("singularity-error"); | |
2987 | Qoverflow_error = intern ("overflow-error"); | |
2988 | Qunderflow_error = intern ("underflow-error"); | |
2989 | ||
2990 | Fput (Qdomain_error, Qerror_conditions, | |
2991 | Fcons (Qdomain_error, arith_tail)); | |
2992 | Fput (Qdomain_error, Qerror_message, | |
2993 | build_string ("Arithmetic domain error")); | |
2994 | ||
2995 | Fput (Qrange_error, Qerror_conditions, | |
2996 | Fcons (Qrange_error, arith_tail)); | |
2997 | Fput (Qrange_error, Qerror_message, | |
2998 | build_string ("Arithmetic range error")); | |
2999 | ||
3000 | Fput (Qsingularity_error, Qerror_conditions, | |
3001 | Fcons (Qsingularity_error, Fcons (Qdomain_error, arith_tail))); | |
3002 | Fput (Qsingularity_error, Qerror_message, | |
3003 | build_string ("Arithmetic singularity error")); | |
3004 | ||
3005 | Fput (Qoverflow_error, Qerror_conditions, | |
3006 | Fcons (Qoverflow_error, Fcons (Qdomain_error, arith_tail))); | |
3007 | Fput (Qoverflow_error, Qerror_message, | |
3008 | build_string ("Arithmetic overflow error")); | |
3009 | ||
3010 | Fput (Qunderflow_error, Qerror_conditions, | |
3011 | Fcons (Qunderflow_error, Fcons (Qdomain_error, arith_tail))); | |
3012 | Fput (Qunderflow_error, Qerror_message, | |
3013 | build_string ("Arithmetic underflow error")); | |
3014 | ||
3015 | staticpro (&Qrange_error); | |
3016 | staticpro (&Qdomain_error); | |
3017 | staticpro (&Qsingularity_error); | |
3018 | staticpro (&Qoverflow_error); | |
3019 | staticpro (&Qunderflow_error); | |
6315e761 | 3020 | |
7921925c JB |
3021 | staticpro (&Qnil); |
3022 | staticpro (&Qt); | |
3023 | staticpro (&Qquote); | |
3024 | staticpro (&Qlambda); | |
3025 | staticpro (&Qsubr); | |
3026 | staticpro (&Qunbound); | |
3027 | staticpro (&Qerror_conditions); | |
3028 | staticpro (&Qerror_message); | |
3029 | staticpro (&Qtop_level); | |
3030 | ||
3031 | staticpro (&Qerror); | |
3032 | staticpro (&Qquit); | |
3033 | staticpro (&Qwrong_type_argument); | |
3034 | staticpro (&Qargs_out_of_range); | |
3035 | staticpro (&Qvoid_function); | |
ffd56f97 | 3036 | staticpro (&Qcyclic_function_indirection); |
7921925c JB |
3037 | staticpro (&Qvoid_variable); |
3038 | staticpro (&Qsetting_constant); | |
3039 | staticpro (&Qinvalid_read_syntax); | |
3040 | staticpro (&Qwrong_number_of_arguments); | |
3041 | staticpro (&Qinvalid_function); | |
3042 | staticpro (&Qno_catch); | |
3043 | staticpro (&Qend_of_file); | |
3044 | staticpro (&Qarith_error); | |
3045 | staticpro (&Qbeginning_of_buffer); | |
3046 | staticpro (&Qend_of_buffer); | |
3047 | staticpro (&Qbuffer_read_only); | |
8f9f49d7 | 3048 | staticpro (&Qtext_read_only); |
638b77e6 | 3049 | staticpro (&Qmark_inactive); |
7921925c JB |
3050 | |
3051 | staticpro (&Qlistp); | |
3052 | staticpro (&Qconsp); | |
3053 | staticpro (&Qsymbolp); | |
cda9b832 | 3054 | staticpro (&Qkeywordp); |
7921925c JB |
3055 | staticpro (&Qintegerp); |
3056 | staticpro (&Qnatnump); | |
8e86942b | 3057 | staticpro (&Qwholenump); |
7921925c JB |
3058 | staticpro (&Qstringp); |
3059 | staticpro (&Qarrayp); | |
3060 | staticpro (&Qsequencep); | |
3061 | staticpro (&Qbufferp); | |
3062 | staticpro (&Qvectorp); | |
3063 | staticpro (&Qchar_or_string_p); | |
3064 | staticpro (&Qmarkerp); | |
07bd8472 | 3065 | staticpro (&Qbuffer_or_string_p); |
7921925c | 3066 | staticpro (&Qinteger_or_marker_p); |
7921925c | 3067 | staticpro (&Qfloatp); |
464f8898 RS |
3068 | staticpro (&Qnumberp); |
3069 | staticpro (&Qnumber_or_marker_p); | |
4d276982 | 3070 | staticpro (&Qchar_table_p); |
7f0edce7 | 3071 | staticpro (&Qvector_or_char_table_p); |
6f0e897f DL |
3072 | staticpro (&Qsubrp); |
3073 | staticpro (&Qmany); | |
3074 | staticpro (&Qunevalled); | |
7921925c JB |
3075 | |
3076 | staticpro (&Qboundp); | |
3077 | staticpro (&Qfboundp); | |
3078 | staticpro (&Qcdr); | |
ab297811 | 3079 | staticpro (&Qad_advice_info); |
c1307a23 | 3080 | staticpro (&Qad_activate_internal); |
7921925c | 3081 | |
39bcc759 RS |
3082 | /* Types that type-of returns. */ |
3083 | Qinteger = intern ("integer"); | |
3084 | Qsymbol = intern ("symbol"); | |
3085 | Qstring = intern ("string"); | |
3086 | Qcons = intern ("cons"); | |
3087 | Qmarker = intern ("marker"); | |
3088 | Qoverlay = intern ("overlay"); | |
3089 | Qfloat = intern ("float"); | |
3090 | Qwindow_configuration = intern ("window-configuration"); | |
3091 | Qprocess = intern ("process"); | |
3092 | Qwindow = intern ("window"); | |
3093 | /* Qsubr = intern ("subr"); */ | |
3094 | Qcompiled_function = intern ("compiled-function"); | |
3095 | Qbuffer = intern ("buffer"); | |
3096 | Qframe = intern ("frame"); | |
3097 | Qvector = intern ("vector"); | |
fc67d5be KH |
3098 | Qchar_table = intern ("char-table"); |
3099 | Qbool_vector = intern ("bool-vector"); | |
81dc5de5 | 3100 | Qhash_table = intern ("hash-table"); |
39bcc759 RS |
3101 | |
3102 | staticpro (&Qinteger); | |
3103 | staticpro (&Qsymbol); | |
3104 | staticpro (&Qstring); | |
3105 | staticpro (&Qcons); | |
3106 | staticpro (&Qmarker); | |
3107 | staticpro (&Qoverlay); | |
3108 | staticpro (&Qfloat); | |
3109 | staticpro (&Qwindow_configuration); | |
3110 | staticpro (&Qprocess); | |
3111 | staticpro (&Qwindow); | |
3112 | /* staticpro (&Qsubr); */ | |
3113 | staticpro (&Qcompiled_function); | |
3114 | staticpro (&Qbuffer); | |
3115 | staticpro (&Qframe); | |
3116 | staticpro (&Qvector); | |
fc67d5be KH |
3117 | staticpro (&Qchar_table); |
3118 | staticpro (&Qbool_vector); | |
81dc5de5 | 3119 | staticpro (&Qhash_table); |
39bcc759 | 3120 | |
f35d5bad | 3121 | defsubr (&Sindirect_variable); |
cc515226 | 3122 | defsubr (&Ssubr_interactive_form); |
7921925c JB |
3123 | defsubr (&Seq); |
3124 | defsubr (&Snull); | |
39bcc759 | 3125 | defsubr (&Stype_of); |
7921925c JB |
3126 | defsubr (&Slistp); |
3127 | defsubr (&Snlistp); | |
3128 | defsubr (&Sconsp); | |
3129 | defsubr (&Satom); | |
3130 | defsubr (&Sintegerp); | |
464f8898 | 3131 | defsubr (&Sinteger_or_marker_p); |
7921925c JB |
3132 | defsubr (&Snumberp); |
3133 | defsubr (&Snumber_or_marker_p); | |
464f8898 | 3134 | defsubr (&Sfloatp); |
7921925c JB |
3135 | defsubr (&Snatnump); |
3136 | defsubr (&Ssymbolp); | |
cda9b832 | 3137 | defsubr (&Skeywordp); |
7921925c | 3138 | defsubr (&Sstringp); |
0f56470d | 3139 | defsubr (&Smultibyte_string_p); |
7921925c | 3140 | defsubr (&Svectorp); |
4d276982 | 3141 | defsubr (&Schar_table_p); |
7f0edce7 | 3142 | defsubr (&Svector_or_char_table_p); |
4d276982 | 3143 | defsubr (&Sbool_vector_p); |
7921925c JB |
3144 | defsubr (&Sarrayp); |
3145 | defsubr (&Ssequencep); | |
3146 | defsubr (&Sbufferp); | |
3147 | defsubr (&Smarkerp); | |
7921925c | 3148 | defsubr (&Ssubrp); |
dbc4e1c1 | 3149 | defsubr (&Sbyte_code_function_p); |
7921925c JB |
3150 | defsubr (&Schar_or_string_p); |
3151 | defsubr (&Scar); | |
3152 | defsubr (&Scdr); | |
3153 | defsubr (&Scar_safe); | |
3154 | defsubr (&Scdr_safe); | |
3155 | defsubr (&Ssetcar); | |
3156 | defsubr (&Ssetcdr); | |
3157 | defsubr (&Ssymbol_function); | |
ffd56f97 | 3158 | defsubr (&Sindirect_function); |
7921925c JB |
3159 | defsubr (&Ssymbol_plist); |
3160 | defsubr (&Ssymbol_name); | |
3161 | defsubr (&Smakunbound); | |
3162 | defsubr (&Sfmakunbound); | |
3163 | defsubr (&Sboundp); | |
3164 | defsubr (&Sfboundp); | |
3165 | defsubr (&Sfset); | |
80df38a2 | 3166 | defsubr (&Sdefalias); |
7921925c JB |
3167 | defsubr (&Ssetplist); |
3168 | defsubr (&Ssymbol_value); | |
3169 | defsubr (&Sset); | |
3170 | defsubr (&Sdefault_boundp); | |
3171 | defsubr (&Sdefault_value); | |
3172 | defsubr (&Sset_default); | |
3173 | defsubr (&Ssetq_default); | |
3174 | defsubr (&Smake_variable_buffer_local); | |
3175 | defsubr (&Smake_local_variable); | |
3176 | defsubr (&Skill_local_variable); | |
b0c2d1c6 | 3177 | defsubr (&Smake_variable_frame_local); |
62476adc | 3178 | defsubr (&Slocal_variable_p); |
f4f04cee | 3179 | defsubr (&Slocal_variable_if_set_p); |
7921925c JB |
3180 | defsubr (&Saref); |
3181 | defsubr (&Saset); | |
f2980264 | 3182 | defsubr (&Snumber_to_string); |
25e40a4b | 3183 | defsubr (&Sstring_to_number); |
7921925c JB |
3184 | defsubr (&Seqlsign); |
3185 | defsubr (&Slss); | |
3186 | defsubr (&Sgtr); | |
3187 | defsubr (&Sleq); | |
3188 | defsubr (&Sgeq); | |
3189 | defsubr (&Sneq); | |
3190 | defsubr (&Szerop); | |
3191 | defsubr (&Splus); | |
3192 | defsubr (&Sminus); | |
3193 | defsubr (&Stimes); | |
3194 | defsubr (&Squo); | |
3195 | defsubr (&Srem); | |
44fa9da5 | 3196 | defsubr (&Smod); |
7921925c JB |
3197 | defsubr (&Smax); |
3198 | defsubr (&Smin); | |
3199 | defsubr (&Slogand); | |
3200 | defsubr (&Slogior); | |
3201 | defsubr (&Slogxor); | |
3202 | defsubr (&Slsh); | |
3203 | defsubr (&Sash); | |
3204 | defsubr (&Sadd1); | |
3205 | defsubr (&Ssub1); | |
3206 | defsubr (&Slognot); | |
6f0e897f | 3207 | defsubr (&Ssubr_arity); |
8e86942b | 3208 | |
c80bd143 | 3209 | XSYMBOL (Qwholenump)->function = XSYMBOL (Qnatnump)->function; |
e6190b11 GM |
3210 | |
3211 | DEFVAR_INT ("most-positive-fixnum", &most_positive_fixnum, | |
8c1a1077 | 3212 | doc: /* The largest value that is representable in a Lisp integer. */); |
e6190b11 GM |
3213 | most_positive_fixnum = MOST_POSITIVE_FIXNUM; |
3214 | ||
3215 | DEFVAR_INT ("most-negative-fixnum", &most_negative_fixnum, | |
8c1a1077 | 3216 | doc: /* The smallest value that is representable in a Lisp integer. */); |
e6190b11 | 3217 | most_negative_fixnum = MOST_NEGATIVE_FIXNUM; |
7921925c JB |
3218 | } |
3219 | ||
a33ef3ab | 3220 | SIGTYPE |
7921925c JB |
3221 | arith_error (signo) |
3222 | int signo; | |
3223 | { | |
fe42a920 | 3224 | #if defined(USG) && !defined(POSIX_SIGNALS) |
7921925c JB |
3225 | /* USG systems forget handlers when they are used; |
3226 | must reestablish each time */ | |
3227 | signal (signo, arith_error); | |
3228 | #endif /* USG */ | |
3229 | #ifdef VMS | |
3230 | /* VMS systems are like USG. */ | |
3231 | signal (signo, arith_error); | |
3232 | #endif /* VMS */ | |
3233 | #ifdef BSD4_1 | |
3234 | sigrelse (SIGFPE); | |
3235 | #else /* not BSD4_1 */ | |
e065a56e | 3236 | sigsetmask (SIGEMPTYMASK); |
7921925c JB |
3237 | #endif /* not BSD4_1 */ |
3238 | ||
3239 | Fsignal (Qarith_error, Qnil); | |
3240 | } | |
3241 | ||
dfcf069d | 3242 | void |
7921925c JB |
3243 | init_data () |
3244 | { | |
3245 | /* Don't do this if just dumping out. | |
3246 | We don't want to call `signal' in this case | |
3247 | so that we don't have trouble with dumping | |
3248 | signal-delivering routines in an inconsistent state. */ | |
3249 | #ifndef CANNOT_DUMP | |
3250 | if (!initialized) | |
3251 | return; | |
3252 | #endif /* CANNOT_DUMP */ | |
3253 | signal (SIGFPE, arith_error); | |
7403b5c8 | 3254 | |
7921925c JB |
3255 | #ifdef uts |
3256 | signal (SIGEMT, arith_error); | |
3257 | #endif /* uts */ | |
3258 | } |