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7921925c | 1 | /* Primitive operations on Lisp data types for GNU Emacs Lisp interpreter. |
acaf905b | 2 | Copyright (C) 1985-1986, 1988, 1993-1995, 1997-2012 |
8cabe764 | 3 | Free Software Foundation, Inc. |
7921925c JB |
4 | |
5 | This file is part of GNU Emacs. | |
6 | ||
9ec0b715 | 7 | GNU Emacs is free software: you can redistribute it and/or modify |
7921925c | 8 | it under the terms of the GNU General Public License as published by |
9ec0b715 GM |
9 | the Free Software Foundation, either version 3 of the License, or |
10 | (at your option) any later version. | |
7921925c JB |
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 | |
9ec0b715 | 18 | along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */ |
7921925c JB |
19 | |
20 | ||
18160b98 | 21 | #include <config.h> |
68c45bf0 | 22 | #include <signal.h> |
dd8daec5 | 23 | #include <stdio.h> |
d7306fe6 | 24 | #include <setjmp.h> |
0ae6bdee PE |
25 | |
26 | #include <intprops.h> | |
27 | ||
7921925c | 28 | #include "lisp.h" |
29eab336 | 29 | #include "puresize.h" |
e6e1f521 | 30 | #include "character.h" |
7921925c | 31 | #include "buffer.h" |
077d751f | 32 | #include "keyboard.h" |
b0c2d1c6 | 33 | #include "frame.h" |
a44804c2 | 34 | #include "syssignal.h" |
620c53a6 | 35 | #include "termhooks.h" /* For FRAME_KBOARD reference in y-or-n-p. */ |
4e6f2626 | 36 | #include "font.h" |
61b108cc | 37 | #include "keymap.h" |
fb8e9847 | 38 | |
2f261542 | 39 | #include <float.h> |
620c53a6 | 40 | /* If IEEE_FLOATING_POINT isn't defined, default it from FLT_*. */ |
ad8d56b9 PE |
41 | #ifndef IEEE_FLOATING_POINT |
42 | #if (FLT_RADIX == 2 && FLT_MANT_DIG == 24 \ | |
43 | && FLT_MIN_EXP == -125 && FLT_MAX_EXP == 128) | |
44 | #define IEEE_FLOATING_POINT 1 | |
45 | #else | |
46 | #define IEEE_FLOATING_POINT 0 | |
47 | #endif | |
48 | #endif | |
49 | ||
7921925c | 50 | #include <math.h> |
7921925c | 51 | |
955cbe7b PE |
52 | Lisp_Object Qnil, Qt, Qquote, Qlambda, Qunbound; |
53 | static Lisp_Object Qsubr; | |
7921925c | 54 | Lisp_Object Qerror_conditions, Qerror_message, Qtop_level; |
71873e2b | 55 | Lisp_Object Qerror, Quser_error, Qquit, Qargs_out_of_range; |
955cbe7b PE |
56 | static Lisp_Object Qwrong_type_argument; |
57 | Lisp_Object Qvoid_variable, Qvoid_function; | |
58 | static Lisp_Object Qcyclic_function_indirection; | |
59 | static Lisp_Object Qcyclic_variable_indirection; | |
60 | Lisp_Object Qcircular_list; | |
61 | static Lisp_Object Qsetting_constant; | |
62 | Lisp_Object Qinvalid_read_syntax; | |
7921925c | 63 | Lisp_Object Qinvalid_function, Qwrong_number_of_arguments, Qno_catch; |
3b8819d6 | 64 | Lisp_Object Qend_of_file, Qarith_error, Qmark_inactive; |
7921925c | 65 | Lisp_Object Qbeginning_of_buffer, Qend_of_buffer, Qbuffer_read_only; |
8f9f49d7 | 66 | Lisp_Object Qtext_read_only; |
6b61353c | 67 | |
955cbe7b PE |
68 | Lisp_Object Qintegerp, Qwholenump, Qsymbolp, Qlistp, Qconsp; |
69 | static Lisp_Object Qnatnump; | |
7921925c JB |
70 | Lisp_Object Qstringp, Qarrayp, Qsequencep, Qbufferp; |
71 | Lisp_Object Qchar_or_string_p, Qmarkerp, Qinteger_or_marker_p, Qvectorp; | |
955cbe7b PE |
72 | Lisp_Object Qbuffer_or_string_p; |
73 | static Lisp_Object Qkeywordp, Qboundp; | |
74 | Lisp_Object Qfboundp; | |
7f0edce7 | 75 | Lisp_Object Qchar_table_p, Qvector_or_char_table_p; |
39bcc759 | 76 | |
7921925c | 77 | Lisp_Object Qcdr; |
955cbe7b | 78 | static Lisp_Object Qad_advice_info, Qad_activate_internal; |
7921925c | 79 | |
6315e761 RS |
80 | Lisp_Object Qrange_error, Qdomain_error, Qsingularity_error; |
81 | Lisp_Object Qoverflow_error, Qunderflow_error; | |
82 | ||
464f8898 | 83 | Lisp_Object Qfloatp; |
7921925c | 84 | Lisp_Object Qnumberp, Qnumber_or_marker_p; |
7921925c | 85 | |
3ab6e069 DA |
86 | Lisp_Object Qinteger, Qinterval, Qfloat, Qvector; |
87 | Lisp_Object Qsymbol, Qstring, Qcons, Qmisc; | |
e6cba650 | 88 | Lisp_Object Qwindow; |
3ab6e069 DA |
89 | static Lisp_Object Qoverlay, Qwindow_configuration; |
90 | static Lisp_Object Qprocess, Qmarker; | |
91 | static Lisp_Object Qcompiled_function, Qframe; | |
4b66faf3 | 92 | Lisp_Object Qbuffer; |
81dc5de5 | 93 | static Lisp_Object Qchar_table, Qbool_vector, Qhash_table; |
6f0e897f | 94 | static Lisp_Object Qsubrp, Qmany, Qunevalled; |
4e6f2626 | 95 | Lisp_Object Qfont_spec, Qfont_entity, Qfont_object; |
61b108cc | 96 | static Lisp_Object Qdefun; |
39bcc759 | 97 | |
3860280a CY |
98 | Lisp_Object Qinteractive_form; |
99 | ||
ce5b453a | 100 | static void swap_in_symval_forwarding (struct Lisp_Symbol *, struct Lisp_Buffer_Local_Value *); |
d02eeab3 | 101 | |
13d95cc0 | 102 | |
7921925c | 103 | Lisp_Object |
971de7fb | 104 | wrong_type_argument (register Lisp_Object predicate, register Lisp_Object value) |
7921925c | 105 | { |
2de9f71c SM |
106 | /* If VALUE is not even a valid Lisp object, we'd want to abort here |
107 | where we can get a backtrace showing where it came from. We used | |
108 | to try and do that by checking the tagbits, but nowadays all | |
109 | tagbits are potentially valid. */ | |
110 | /* if ((unsigned int) XTYPE (value) >= Lisp_Type_Limit) | |
111 | * abort (); */ | |
e1351ff7 | 112 | |
740ef0b5 | 113 | xsignal2 (Qwrong_type_argument, predicate, value); |
7921925c JB |
114 | } |
115 | ||
dfcf069d | 116 | void |
971de7fb | 117 | pure_write_error (void) |
7921925c JB |
118 | { |
119 | error ("Attempt to modify read-only object"); | |
120 | } | |
121 | ||
122 | void | |
971de7fb | 123 | args_out_of_range (Lisp_Object a1, Lisp_Object a2) |
7921925c | 124 | { |
740ef0b5 | 125 | xsignal2 (Qargs_out_of_range, a1, a2); |
7921925c JB |
126 | } |
127 | ||
128 | void | |
971de7fb | 129 | args_out_of_range_3 (Lisp_Object a1, Lisp_Object a2, Lisp_Object a3) |
7921925c | 130 | { |
740ef0b5 | 131 | xsignal3 (Qargs_out_of_range, a1, a2, a3); |
7921925c JB |
132 | } |
133 | ||
7921925c | 134 | \f |
61b108cc | 135 | /* Data type predicates. */ |
7921925c JB |
136 | |
137 | DEFUN ("eq", Feq, Seq, 2, 2, 0, | |
8c1a1077 | 138 | doc: /* Return t if the two args are the same Lisp object. */) |
5842a27b | 139 | (Lisp_Object obj1, Lisp_Object obj2) |
7921925c JB |
140 | { |
141 | if (EQ (obj1, obj2)) | |
142 | return Qt; | |
143 | return Qnil; | |
144 | } | |
145 | ||
8c1a1077 PJ |
146 | DEFUN ("null", Fnull, Snull, 1, 1, 0, |
147 | doc: /* Return t if OBJECT is nil. */) | |
5842a27b | 148 | (Lisp_Object object) |
7921925c | 149 | { |
39bcc759 | 150 | if (NILP (object)) |
7921925c JB |
151 | return Qt; |
152 | return Qnil; | |
153 | } | |
154 | ||
39bcc759 | 155 | DEFUN ("type-of", Ftype_of, Stype_of, 1, 1, 0, |
8c1a1077 PJ |
156 | doc: /* Return a symbol representing the type of OBJECT. |
157 | The symbol returned names the object's basic type; | |
158 | for example, (type-of 1) returns `integer'. */) | |
5842a27b | 159 | (Lisp_Object object) |
39bcc759 | 160 | { |
8e50cc2d | 161 | switch (XTYPE (object)) |
39bcc759 | 162 | { |
2de9f71c | 163 | case_Lisp_Int: |
39bcc759 RS |
164 | return Qinteger; |
165 | ||
166 | case Lisp_Symbol: | |
167 | return Qsymbol; | |
168 | ||
169 | case Lisp_String: | |
170 | return Qstring; | |
171 | ||
172 | case Lisp_Cons: | |
173 | return Qcons; | |
174 | ||
175 | case Lisp_Misc: | |
324a6eef | 176 | switch (XMISCTYPE (object)) |
39bcc759 RS |
177 | { |
178 | case Lisp_Misc_Marker: | |
179 | return Qmarker; | |
180 | case Lisp_Misc_Overlay: | |
181 | return Qoverlay; | |
182 | case Lisp_Misc_Float: | |
183 | return Qfloat; | |
184 | } | |
185 | abort (); | |
186 | ||
187 | case Lisp_Vectorlike: | |
8e50cc2d | 188 | if (WINDOW_CONFIGURATIONP (object)) |
39bcc759 | 189 | return Qwindow_configuration; |
8e50cc2d | 190 | if (PROCESSP (object)) |
39bcc759 | 191 | return Qprocess; |
8e50cc2d | 192 | if (WINDOWP (object)) |
39bcc759 | 193 | return Qwindow; |
8e50cc2d | 194 | if (SUBRP (object)) |
39bcc759 | 195 | return Qsubr; |
876c194c SM |
196 | if (COMPILEDP (object)) |
197 | return Qcompiled_function; | |
8e50cc2d | 198 | if (BUFFERP (object)) |
39bcc759 | 199 | return Qbuffer; |
8e50cc2d | 200 | if (CHAR_TABLE_P (object)) |
fc67d5be | 201 | return Qchar_table; |
8e50cc2d | 202 | if (BOOL_VECTOR_P (object)) |
fc67d5be | 203 | return Qbool_vector; |
8e50cc2d | 204 | if (FRAMEP (object)) |
39bcc759 | 205 | return Qframe; |
8e50cc2d | 206 | if (HASH_TABLE_P (object)) |
81dc5de5 | 207 | return Qhash_table; |
4e6f2626 CY |
208 | if (FONT_SPEC_P (object)) |
209 | return Qfont_spec; | |
210 | if (FONT_ENTITY_P (object)) | |
211 | return Qfont_entity; | |
212 | if (FONT_OBJECT_P (object)) | |
213 | return Qfont_object; | |
39bcc759 RS |
214 | return Qvector; |
215 | ||
39bcc759 RS |
216 | case Lisp_Float: |
217 | return Qfloat; | |
39bcc759 RS |
218 | |
219 | default: | |
220 | abort (); | |
221 | } | |
222 | } | |
223 | ||
8c1a1077 PJ |
224 | DEFUN ("consp", Fconsp, Sconsp, 1, 1, 0, |
225 | doc: /* Return t if OBJECT is a cons cell. */) | |
5842a27b | 226 | (Lisp_Object object) |
7921925c | 227 | { |
39bcc759 | 228 | if (CONSP (object)) |
7921925c JB |
229 | return Qt; |
230 | return Qnil; | |
231 | } | |
232 | ||
25638b07 | 233 | DEFUN ("atom", Fatom, Satom, 1, 1, 0, |
8c1a1077 | 234 | doc: /* Return t if OBJECT is not a cons cell. This includes nil. */) |
5842a27b | 235 | (Lisp_Object object) |
7921925c | 236 | { |
39bcc759 | 237 | if (CONSP (object)) |
7921925c JB |
238 | return Qnil; |
239 | return Qt; | |
240 | } | |
241 | ||
25638b07 | 242 | DEFUN ("listp", Flistp, Slistp, 1, 1, 0, |
4cdcdcc9 LT |
243 | doc: /* Return t if OBJECT is a list, that is, a cons cell or nil. |
244 | Otherwise, return nil. */) | |
5842a27b | 245 | (Lisp_Object object) |
7921925c | 246 | { |
39bcc759 | 247 | if (CONSP (object) || NILP (object)) |
7921925c JB |
248 | return Qt; |
249 | return Qnil; | |
250 | } | |
251 | ||
25638b07 | 252 | DEFUN ("nlistp", Fnlistp, Snlistp, 1, 1, 0, |
8c1a1077 | 253 | doc: /* Return t if OBJECT is not a list. Lists include nil. */) |
5842a27b | 254 | (Lisp_Object object) |
7921925c | 255 | { |
39bcc759 | 256 | if (CONSP (object) || NILP (object)) |
7921925c JB |
257 | return Qnil; |
258 | return Qt; | |
259 | } | |
260 | \f | |
25638b07 | 261 | DEFUN ("symbolp", Fsymbolp, Ssymbolp, 1, 1, 0, |
8c1a1077 | 262 | doc: /* Return t if OBJECT is a symbol. */) |
5842a27b | 263 | (Lisp_Object object) |
7921925c | 264 | { |
39bcc759 | 265 | if (SYMBOLP (object)) |
7921925c JB |
266 | return Qt; |
267 | return Qnil; | |
268 | } | |
269 | ||
cda9b832 DL |
270 | /* Define this in C to avoid unnecessarily consing up the symbol |
271 | name. */ | |
272 | DEFUN ("keywordp", Fkeywordp, Skeywordp, 1, 1, 0, | |
8c1a1077 PJ |
273 | doc: /* Return t if OBJECT is a keyword. |
274 | This means that it is a symbol with a print name beginning with `:' | |
275 | interned in the initial obarray. */) | |
5842a27b | 276 | (Lisp_Object object) |
cda9b832 DL |
277 | { |
278 | if (SYMBOLP (object) | |
d5db4077 | 279 | && SREF (SYMBOL_NAME (object), 0) == ':' |
f35d5bad | 280 | && SYMBOL_INTERNED_IN_INITIAL_OBARRAY_P (object)) |
cda9b832 DL |
281 | return Qt; |
282 | return Qnil; | |
283 | } | |
284 | ||
25638b07 | 285 | DEFUN ("vectorp", Fvectorp, Svectorp, 1, 1, 0, |
8c1a1077 | 286 | doc: /* Return t if OBJECT is a vector. */) |
5842a27b | 287 | (Lisp_Object object) |
7921925c | 288 | { |
39bcc759 | 289 | if (VECTORP (object)) |
7921925c JB |
290 | return Qt; |
291 | return Qnil; | |
292 | } | |
293 | ||
25638b07 | 294 | DEFUN ("stringp", Fstringp, Sstringp, 1, 1, 0, |
8c1a1077 | 295 | doc: /* Return t if OBJECT is a string. */) |
5842a27b | 296 | (Lisp_Object object) |
7921925c | 297 | { |
39bcc759 | 298 | if (STRINGP (object)) |
7921925c JB |
299 | return Qt; |
300 | return Qnil; | |
301 | } | |
302 | ||
25638b07 | 303 | DEFUN ("multibyte-string-p", Fmultibyte_string_p, Smultibyte_string_p, |
8c1a1077 PJ |
304 | 1, 1, 0, |
305 | doc: /* Return t if OBJECT is a multibyte string. */) | |
5842a27b | 306 | (Lisp_Object object) |
25638b07 RS |
307 | { |
308 | if (STRINGP (object) && STRING_MULTIBYTE (object)) | |
309 | return Qt; | |
310 | return Qnil; | |
311 | } | |
312 | ||
313 | DEFUN ("char-table-p", Fchar_table_p, Schar_table_p, 1, 1, 0, | |
8c1a1077 | 314 | doc: /* Return t if OBJECT is a char-table. */) |
5842a27b | 315 | (Lisp_Object object) |
4d276982 RS |
316 | { |
317 | if (CHAR_TABLE_P (object)) | |
318 | return Qt; | |
319 | return Qnil; | |
320 | } | |
321 | ||
7f0edce7 RS |
322 | DEFUN ("vector-or-char-table-p", Fvector_or_char_table_p, |
323 | Svector_or_char_table_p, 1, 1, 0, | |
8c1a1077 | 324 | doc: /* Return t if OBJECT is a char-table or vector. */) |
5842a27b | 325 | (Lisp_Object object) |
7f0edce7 RS |
326 | { |
327 | if (VECTORP (object) || CHAR_TABLE_P (object)) | |
328 | return Qt; | |
329 | return Qnil; | |
330 | } | |
331 | ||
8c1a1077 PJ |
332 | DEFUN ("bool-vector-p", Fbool_vector_p, Sbool_vector_p, 1, 1, 0, |
333 | doc: /* Return t if OBJECT is a bool-vector. */) | |
5842a27b | 334 | (Lisp_Object object) |
4d276982 RS |
335 | { |
336 | if (BOOL_VECTOR_P (object)) | |
337 | return Qt; | |
338 | return Qnil; | |
339 | } | |
340 | ||
8c1a1077 PJ |
341 | DEFUN ("arrayp", Farrayp, Sarrayp, 1, 1, 0, |
342 | doc: /* Return t if OBJECT is an array (string or vector). */) | |
5842a27b | 343 | (Lisp_Object object) |
7921925c | 344 | { |
0c64a8cd | 345 | if (ARRAYP (object)) |
7921925c JB |
346 | return Qt; |
347 | return Qnil; | |
348 | } | |
349 | ||
350 | DEFUN ("sequencep", Fsequencep, Ssequencep, 1, 1, 0, | |
8c1a1077 | 351 | doc: /* Return t if OBJECT is a sequence (list or array). */) |
5842a27b | 352 | (register Lisp_Object object) |
7921925c | 353 | { |
0c64a8cd | 354 | if (CONSP (object) || NILP (object) || ARRAYP (object)) |
7921925c JB |
355 | return Qt; |
356 | return Qnil; | |
357 | } | |
358 | ||
8c1a1077 PJ |
359 | DEFUN ("bufferp", Fbufferp, Sbufferp, 1, 1, 0, |
360 | doc: /* Return t if OBJECT is an editor buffer. */) | |
5842a27b | 361 | (Lisp_Object object) |
7921925c | 362 | { |
39bcc759 | 363 | if (BUFFERP (object)) |
7921925c JB |
364 | return Qt; |
365 | return Qnil; | |
366 | } | |
367 | ||
8c1a1077 PJ |
368 | DEFUN ("markerp", Fmarkerp, Smarkerp, 1, 1, 0, |
369 | doc: /* Return t if OBJECT is a marker (editor pointer). */) | |
5842a27b | 370 | (Lisp_Object object) |
7921925c | 371 | { |
39bcc759 | 372 | if (MARKERP (object)) |
7921925c JB |
373 | return Qt; |
374 | return Qnil; | |
375 | } | |
376 | ||
8c1a1077 PJ |
377 | DEFUN ("subrp", Fsubrp, Ssubrp, 1, 1, 0, |
378 | doc: /* Return t if OBJECT is a built-in function. */) | |
5842a27b | 379 | (Lisp_Object object) |
7921925c | 380 | { |
39bcc759 | 381 | if (SUBRP (object)) |
7921925c JB |
382 | return Qt; |
383 | return Qnil; | |
384 | } | |
385 | ||
dbc4e1c1 | 386 | DEFUN ("byte-code-function-p", Fbyte_code_function_p, Sbyte_code_function_p, |
8c1a1077 PJ |
387 | 1, 1, 0, |
388 | doc: /* Return t if OBJECT is a byte-compiled function object. */) | |
5842a27b | 389 | (Lisp_Object object) |
7921925c | 390 | { |
39bcc759 | 391 | if (COMPILEDP (object)) |
7921925c JB |
392 | return Qt; |
393 | return Qnil; | |
394 | } | |
395 | ||
0321d75c | 396 | DEFUN ("char-or-string-p", Fchar_or_string_p, Schar_or_string_p, 1, 1, 0, |
8637f5ee | 397 | doc: /* Return t if OBJECT is a character or a string. */) |
5842a27b | 398 | (register Lisp_Object object) |
7921925c | 399 | { |
cfd70f33 | 400 | if (CHARACTERP (object) || STRINGP (object)) |
7921925c JB |
401 | return Qt; |
402 | return Qnil; | |
403 | } | |
404 | \f | |
8c1a1077 PJ |
405 | DEFUN ("integerp", Fintegerp, Sintegerp, 1, 1, 0, |
406 | doc: /* Return t if OBJECT is an integer. */) | |
5842a27b | 407 | (Lisp_Object object) |
7921925c | 408 | { |
39bcc759 | 409 | if (INTEGERP (object)) |
7921925c JB |
410 | return Qt; |
411 | return Qnil; | |
412 | } | |
413 | ||
464f8898 | 414 | DEFUN ("integer-or-marker-p", Finteger_or_marker_p, Sinteger_or_marker_p, 1, 1, 0, |
8c1a1077 | 415 | doc: /* Return t if OBJECT is an integer or a marker (editor pointer). */) |
5842a27b | 416 | (register Lisp_Object object) |
7921925c | 417 | { |
39bcc759 | 418 | if (MARKERP (object) || INTEGERP (object)) |
7921925c JB |
419 | return Qt; |
420 | return Qnil; | |
421 | } | |
422 | ||
0321d75c | 423 | DEFUN ("natnump", Fnatnump, Snatnump, 1, 1, 0, |
8c1a1077 | 424 | doc: /* Return t if OBJECT is a nonnegative integer. */) |
5842a27b | 425 | (Lisp_Object object) |
7921925c | 426 | { |
39bcc759 | 427 | if (NATNUMP (object)) |
7921925c JB |
428 | return Qt; |
429 | return Qnil; | |
430 | } | |
431 | ||
432 | DEFUN ("numberp", Fnumberp, Snumberp, 1, 1, 0, | |
8c1a1077 | 433 | doc: /* Return t if OBJECT is a number (floating point or integer). */) |
5842a27b | 434 | (Lisp_Object object) |
7921925c | 435 | { |
39bcc759 | 436 | if (NUMBERP (object)) |
7921925c | 437 | return Qt; |
dbc4e1c1 JB |
438 | else |
439 | return Qnil; | |
7921925c JB |
440 | } |
441 | ||
442 | DEFUN ("number-or-marker-p", Fnumber_or_marker_p, | |
443 | Snumber_or_marker_p, 1, 1, 0, | |
8c1a1077 | 444 | doc: /* Return t if OBJECT is a number or a marker. */) |
5842a27b | 445 | (Lisp_Object object) |
7921925c | 446 | { |
39bcc759 | 447 | if (NUMBERP (object) || MARKERP (object)) |
7921925c JB |
448 | return Qt; |
449 | return Qnil; | |
450 | } | |
464f8898 | 451 | |
464f8898 | 452 | DEFUN ("floatp", Ffloatp, Sfloatp, 1, 1, 0, |
8c1a1077 | 453 | doc: /* Return t if OBJECT is a floating point number. */) |
5842a27b | 454 | (Lisp_Object object) |
464f8898 | 455 | { |
39bcc759 | 456 | if (FLOATP (object)) |
464f8898 RS |
457 | return Qt; |
458 | return Qnil; | |
459 | } | |
cc94f3b2 | 460 | |
7921925c JB |
461 | \f |
462 | /* Extract and set components of lists */ | |
463 | ||
a7ca3326 | 464 | DEFUN ("car", Fcar, Scar, 1, 1, 0, |
8c1a1077 | 465 | doc: /* Return the car of LIST. If arg is nil, return nil. |
9701c742 LT |
466 | Error if arg is not nil and not a cons cell. See also `car-safe'. |
467 | ||
da46c5be LT |
468 | See Info node `(elisp)Cons Cells' for a discussion of related basic |
469 | Lisp concepts such as car, cdr, cons cell and list. */) | |
5842a27b | 470 | (register Lisp_Object list) |
7921925c | 471 | { |
0c64a8cd | 472 | return CAR (list); |
7921925c JB |
473 | } |
474 | ||
a7ca3326 | 475 | DEFUN ("car-safe", Fcar_safe, Scar_safe, 1, 1, 0, |
8c1a1077 | 476 | doc: /* Return the car of OBJECT if it is a cons cell, or else nil. */) |
5842a27b | 477 | (Lisp_Object object) |
7921925c | 478 | { |
0c64a8cd | 479 | return CAR_SAFE (object); |
7921925c JB |
480 | } |
481 | ||
a7ca3326 | 482 | DEFUN ("cdr", Fcdr, Scdr, 1, 1, 0, |
8c1a1077 | 483 | doc: /* Return the cdr of LIST. If arg is nil, return nil. |
9701c742 LT |
484 | Error if arg is not nil and not a cons cell. See also `cdr-safe'. |
485 | ||
da46c5be LT |
486 | See Info node `(elisp)Cons Cells' for a discussion of related basic |
487 | Lisp concepts such as cdr, car, cons cell and list. */) | |
5842a27b | 488 | (register Lisp_Object list) |
7921925c | 489 | { |
0c64a8cd | 490 | return CDR (list); |
7921925c JB |
491 | } |
492 | ||
a7ca3326 | 493 | DEFUN ("cdr-safe", Fcdr_safe, Scdr_safe, 1, 1, 0, |
8c1a1077 | 494 | doc: /* Return the cdr of OBJECT if it is a cons cell, or else nil. */) |
5842a27b | 495 | (Lisp_Object object) |
7921925c | 496 | { |
0c64a8cd | 497 | return CDR_SAFE (object); |
7921925c JB |
498 | } |
499 | ||
a7ca3326 | 500 | DEFUN ("setcar", Fsetcar, Ssetcar, 2, 2, 0, |
8c1a1077 | 501 | doc: /* Set the car of CELL to be NEWCAR. Returns NEWCAR. */) |
5842a27b | 502 | (register Lisp_Object cell, Lisp_Object newcar) |
7921925c | 503 | { |
0c64a8cd | 504 | CHECK_CONS (cell); |
7921925c | 505 | CHECK_IMPURE (cell); |
f3fbd155 | 506 | XSETCAR (cell, newcar); |
7921925c JB |
507 | return newcar; |
508 | } | |
509 | ||
a7ca3326 | 510 | DEFUN ("setcdr", Fsetcdr, Ssetcdr, 2, 2, 0, |
8c1a1077 | 511 | doc: /* Set the cdr of CELL to be NEWCDR. Returns NEWCDR. */) |
5842a27b | 512 | (register Lisp_Object cell, Lisp_Object newcdr) |
7921925c | 513 | { |
0c64a8cd | 514 | CHECK_CONS (cell); |
7921925c | 515 | CHECK_IMPURE (cell); |
f3fbd155 | 516 | XSETCDR (cell, newcdr); |
7921925c JB |
517 | return newcdr; |
518 | } | |
519 | \f | |
1ec4b7b2 | 520 | /* Extract and set components of symbols. */ |
7921925c | 521 | |
a7ca3326 | 522 | DEFUN ("boundp", Fboundp, Sboundp, 1, 1, 0, |
8c1a1077 | 523 | doc: /* Return t if SYMBOL's value is not void. */) |
5842a27b | 524 | (register Lisp_Object symbol) |
7921925c JB |
525 | { |
526 | Lisp_Object valcontents; | |
ce5b453a | 527 | struct Lisp_Symbol *sym; |
b7826503 | 528 | CHECK_SYMBOL (symbol); |
ce5b453a | 529 | sym = XSYMBOL (symbol); |
7921925c | 530 | |
ce5b453a SM |
531 | start: |
532 | switch (sym->redirect) | |
533 | { | |
534 | case SYMBOL_PLAINVAL: valcontents = SYMBOL_VAL (sym); break; | |
535 | case SYMBOL_VARALIAS: sym = indirect_variable (sym); goto start; | |
536 | case SYMBOL_LOCALIZED: | |
537 | { | |
538 | struct Lisp_Buffer_Local_Value *blv = SYMBOL_BLV (sym); | |
539 | if (blv->fwd) | |
540 | /* In set_internal, we un-forward vars when their value is | |
541 | set to Qunbound. */ | |
542 | return Qt; | |
543 | else | |
544 | { | |
545 | swap_in_symval_forwarding (sym, blv); | |
546 | valcontents = BLV_VALUE (blv); | |
547 | } | |
548 | break; | |
549 | } | |
550 | case SYMBOL_FORWARDED: | |
551 | /* In set_internal, we un-forward vars when their value is | |
552 | set to Qunbound. */ | |
553 | return Qt; | |
554 | default: abort (); | |
555 | } | |
7921925c | 556 | |
1bfcade3 | 557 | return (EQ (valcontents, Qunbound) ? Qnil : Qt); |
7921925c JB |
558 | } |
559 | ||
a7ca3326 | 560 | DEFUN ("fboundp", Ffboundp, Sfboundp, 1, 1, 0, |
8c1a1077 | 561 | doc: /* Return t if SYMBOL's function definition is not void. */) |
5842a27b | 562 | (register Lisp_Object symbol) |
7921925c | 563 | { |
b7826503 | 564 | CHECK_SYMBOL (symbol); |
d9c2a0f2 | 565 | return (EQ (XSYMBOL (symbol)->function, Qunbound) ? Qnil : Qt); |
7921925c JB |
566 | } |
567 | ||
8c1a1077 | 568 | DEFUN ("makunbound", Fmakunbound, Smakunbound, 1, 1, 0, |
bfb96cb7 FP |
569 | doc: /* Make SYMBOL's value be void. |
570 | Return SYMBOL. */) | |
5842a27b | 571 | (register Lisp_Object symbol) |
7921925c | 572 | { |
b7826503 | 573 | CHECK_SYMBOL (symbol); |
64ec26d6 | 574 | if (SYMBOL_CONSTANT_P (symbol)) |
740ef0b5 | 575 | xsignal1 (Qsetting_constant, symbol); |
d9c2a0f2 EN |
576 | Fset (symbol, Qunbound); |
577 | return symbol; | |
7921925c JB |
578 | } |
579 | ||
8c1a1077 | 580 | DEFUN ("fmakunbound", Ffmakunbound, Sfmakunbound, 1, 1, 0, |
bfb96cb7 FP |
581 | doc: /* Make SYMBOL's function definition be void. |
582 | Return SYMBOL. */) | |
5842a27b | 583 | (register Lisp_Object symbol) |
7921925c | 584 | { |
b7826503 | 585 | CHECK_SYMBOL (symbol); |
d9c2a0f2 | 586 | if (NILP (symbol) || EQ (symbol, Qt)) |
740ef0b5 | 587 | xsignal1 (Qsetting_constant, symbol); |
d9c2a0f2 EN |
588 | XSYMBOL (symbol)->function = Qunbound; |
589 | return symbol; | |
7921925c JB |
590 | } |
591 | ||
a7ca3326 | 592 | DEFUN ("symbol-function", Fsymbol_function, Ssymbol_function, 1, 1, 0, |
8c1a1077 | 593 | doc: /* Return SYMBOL's function definition. Error if that is void. */) |
5842a27b | 594 | (register Lisp_Object symbol) |
7921925c | 595 | { |
b7826503 | 596 | CHECK_SYMBOL (symbol); |
740ef0b5 KS |
597 | if (!EQ (XSYMBOL (symbol)->function, Qunbound)) |
598 | return XSYMBOL (symbol)->function; | |
599 | xsignal1 (Qvoid_function, symbol); | |
7921925c JB |
600 | } |
601 | ||
8c1a1077 PJ |
602 | DEFUN ("symbol-plist", Fsymbol_plist, Ssymbol_plist, 1, 1, 0, |
603 | doc: /* Return SYMBOL's property list. */) | |
5842a27b | 604 | (register Lisp_Object symbol) |
7921925c | 605 | { |
b7826503 | 606 | CHECK_SYMBOL (symbol); |
d9c2a0f2 | 607 | return XSYMBOL (symbol)->plist; |
7921925c JB |
608 | } |
609 | ||
a7ca3326 | 610 | DEFUN ("symbol-name", Fsymbol_name, Ssymbol_name, 1, 1, 0, |
8c1a1077 | 611 | doc: /* Return SYMBOL's name, a string. */) |
5842a27b | 612 | (register Lisp_Object symbol) |
7921925c JB |
613 | { |
614 | register Lisp_Object name; | |
615 | ||
b7826503 | 616 | CHECK_SYMBOL (symbol); |
84023177 | 617 | name = SYMBOL_NAME (symbol); |
7921925c JB |
618 | return name; |
619 | } | |
620 | ||
a7ca3326 | 621 | DEFUN ("fset", Ffset, Sfset, 2, 2, 0, |
8c1a1077 | 622 | doc: /* Set SYMBOL's function definition to DEFINITION, and return DEFINITION. */) |
5842a27b | 623 | (register Lisp_Object symbol, Lisp_Object definition) |
d9c2a0f2 | 624 | { |
764ea377 JB |
625 | register Lisp_Object function; |
626 | ||
b7826503 | 627 | CHECK_SYMBOL (symbol); |
d9c2a0f2 | 628 | if (NILP (symbol) || EQ (symbol, Qt)) |
740ef0b5 | 629 | xsignal1 (Qsetting_constant, symbol); |
764ea377 JB |
630 | |
631 | function = XSYMBOL (symbol)->function; | |
632 | ||
633 | if (!NILP (Vautoload_queue) && !EQ (function, Qunbound)) | |
634 | Vautoload_queue = Fcons (Fcons (symbol, function), Vautoload_queue); | |
635 | ||
636 | if (CONSP (function) && EQ (XCAR (function), Qautoload)) | |
637 | Fput (symbol, Qautoload, XCDR (function)); | |
638 | ||
8c0b5540 | 639 | XSYMBOL (symbol)->function = definition; |
1053a871 SM |
640 | /* Handle automatic advice activation. */ |
641 | if (CONSP (XSYMBOL (symbol)->plist) | |
642 | && !NILP (Fget (symbol, Qad_advice_info))) | |
f845f2c9 | 643 | { |
c1307a23 | 644 | call2 (Qad_activate_internal, symbol, Qnil); |
8c0b5540 | 645 | definition = XSYMBOL (symbol)->function; |
f845f2c9 | 646 | } |
8c0b5540 | 647 | return definition; |
7921925c JB |
648 | } |
649 | ||
d2fde41d | 650 | DEFUN ("defalias", Fdefalias, Sdefalias, 2, 3, 0, |
1053a871 | 651 | doc: /* Set SYMBOL's function definition to DEFINITION. |
96143227 RS |
652 | Associates the function with the current load file, if any. |
653 | The optional third argument DOCSTRING specifies the documentation string | |
654 | for SYMBOL; if it is omitted or nil, SYMBOL uses the documentation string | |
1053a871 SM |
655 | determined by DEFINITION. |
656 | The return value is undefined. */) | |
5842a27b | 657 | (register Lisp_Object symbol, Lisp_Object definition, Lisp_Object docstring) |
fc08c367 | 658 | { |
8a658a52 | 659 | CHECK_SYMBOL (symbol); |
894f6538 RS |
660 | if (CONSP (XSYMBOL (symbol)->function) |
661 | && EQ (XCAR (XSYMBOL (symbol)->function), Qautoload)) | |
662 | LOADHIST_ATTACH (Fcons (Qt, symbol)); | |
61b108cc SM |
663 | if (!NILP (Vpurify_flag) |
664 | /* If `definition' is a keymap, immutable (and copying) is wrong. */ | |
665 | && !KEYMAPP (definition)) | |
666 | definition = Fpurecopy (definition); | |
32f532b7 | 667 | definition = Ffset (symbol, definition); |
62a29071 | 668 | LOADHIST_ATTACH (Fcons (Qdefun, symbol)); |
d2fde41d SM |
669 | if (!NILP (docstring)) |
670 | Fput (symbol, Qfunction_documentation, docstring); | |
1053a871 SM |
671 | /* We used to return `definition', but now that `defun' and `defmacro' expand |
672 | to a call to `defalias', we return `symbol' for backward compatibility | |
673 | (bug#11686). */ | |
674 | return symbol; | |
fc08c367 RS |
675 | } |
676 | ||
7921925c | 677 | DEFUN ("setplist", Fsetplist, Ssetplist, 2, 2, 0, |
6b61353c | 678 | doc: /* Set SYMBOL's property list to NEWPLIST, and return NEWPLIST. */) |
5842a27b | 679 | (register Lisp_Object symbol, Lisp_Object newplist) |
7921925c | 680 | { |
b7826503 | 681 | CHECK_SYMBOL (symbol); |
d9c2a0f2 | 682 | XSYMBOL (symbol)->plist = newplist; |
7921925c JB |
683 | return newplist; |
684 | } | |
ffd56f97 | 685 | |
6f0e897f | 686 | DEFUN ("subr-arity", Fsubr_arity, Ssubr_arity, 1, 1, 0, |
8c1a1077 PJ |
687 | doc: /* Return minimum and maximum number of args allowed for SUBR. |
688 | SUBR must be a built-in function. | |
689 | The returned value is a pair (MIN . MAX). MIN is the minimum number | |
690 | of args. MAX is the maximum number or the symbol `many', for a | |
691 | function with `&rest' args, or `unevalled' for a special form. */) | |
5842a27b | 692 | (Lisp_Object subr) |
6f0e897f DL |
693 | { |
694 | short minargs, maxargs; | |
0c64a8cd | 695 | CHECK_SUBR (subr); |
6f0e897f DL |
696 | minargs = XSUBR (subr)->min_args; |
697 | maxargs = XSUBR (subr)->max_args; | |
698 | if (maxargs == MANY) | |
699 | return Fcons (make_number (minargs), Qmany); | |
700 | else if (maxargs == UNEVALLED) | |
701 | return Fcons (make_number (minargs), Qunevalled); | |
702 | else | |
703 | return Fcons (make_number (minargs), make_number (maxargs)); | |
704 | } | |
705 | ||
0fddae66 SM |
706 | DEFUN ("subr-name", Fsubr_name, Ssubr_name, 1, 1, 0, |
707 | doc: /* Return name of subroutine SUBR. | |
708 | SUBR must be a built-in function. */) | |
5842a27b | 709 | (Lisp_Object subr) |
0fddae66 SM |
710 | { |
711 | const char *name; | |
0c64a8cd | 712 | CHECK_SUBR (subr); |
0fddae66 | 713 | name = XSUBR (subr)->symbol_name; |
f3e92b69 | 714 | return build_string (name); |
0fddae66 SM |
715 | } |
716 | ||
a7ca3326 | 717 | DEFUN ("interactive-form", Finteractive_form, Sinteractive_form, 1, 1, 0, |
6b61353c | 718 | doc: /* Return the interactive form of CMD or nil if none. |
df133612 LT |
719 | If CMD is not a command, the return value is nil. |
720 | Value, if non-nil, is a list \(interactive SPEC). */) | |
5842a27b | 721 | (Lisp_Object cmd) |
cc515226 | 722 | { |
c4f46926 | 723 | Lisp_Object fun = indirect_function (cmd); /* Check cycles. */ |
764ea377 | 724 | |
c4f46926 SM |
725 | if (NILP (fun) || EQ (fun, Qunbound)) |
726 | return Qnil; | |
727 | ||
728 | /* Use an `interactive-form' property if present, analogous to the | |
729 | function-documentation property. */ | |
730 | fun = cmd; | |
731 | while (SYMBOLP (fun)) | |
732 | { | |
3860280a | 733 | Lisp_Object tmp = Fget (fun, Qinteractive_form); |
c4f46926 SM |
734 | if (!NILP (tmp)) |
735 | return tmp; | |
736 | else | |
737 | fun = Fsymbol_function (fun); | |
738 | } | |
6b61353c KH |
739 | |
740 | if (SUBRP (fun)) | |
741 | { | |
eec47d6b | 742 | const char *spec = XSUBR (fun)->intspec; |
8a6d230a MC |
743 | if (spec) |
744 | return list2 (Qinteractive, | |
745 | (*spec != '(') ? build_string (spec) : | |
746 | Fcar (Fread_from_string (build_string (spec), Qnil, Qnil))); | |
6b61353c KH |
747 | } |
748 | else if (COMPILEDP (fun)) | |
749 | { | |
750 | if ((ASIZE (fun) & PSEUDOVECTOR_SIZE_MASK) > COMPILED_INTERACTIVE) | |
751 | return list2 (Qinteractive, AREF (fun, COMPILED_INTERACTIVE)); | |
752 | } | |
753 | else if (CONSP (fun)) | |
754 | { | |
755 | Lisp_Object funcar = XCAR (fun); | |
b38b1ec0 | 756 | if (EQ (funcar, Qclosure)) |
23aba0ea SM |
757 | return Fassq (Qinteractive, Fcdr (Fcdr (XCDR (fun)))); |
758 | else if (EQ (funcar, Qlambda)) | |
6b61353c KH |
759 | return Fassq (Qinteractive, Fcdr (XCDR (fun))); |
760 | else if (EQ (funcar, Qautoload)) | |
761 | { | |
762 | struct gcpro gcpro1; | |
763 | GCPRO1 (cmd); | |
764 | do_autoload (fun, cmd); | |
765 | UNGCPRO; | |
766 | return Finteractive_form (cmd); | |
767 | } | |
768 | } | |
cc515226 GM |
769 | return Qnil; |
770 | } | |
771 | ||
7921925c | 772 | \f |
f35d5bad GM |
773 | /*********************************************************************** |
774 | Getting and Setting Values of Symbols | |
775 | ***********************************************************************/ | |
776 | ||
777 | /* Return the symbol holding SYMBOL's value. Signal | |
778 | `cyclic-variable-indirection' if SYMBOL's chain of variable | |
779 | indirections contains a loop. */ | |
780 | ||
ad97b375 | 781 | struct Lisp_Symbol * |
971de7fb | 782 | indirect_variable (struct Lisp_Symbol *symbol) |
f35d5bad | 783 | { |
ad97b375 | 784 | struct Lisp_Symbol *tortoise, *hare; |
f35d5bad GM |
785 | |
786 | hare = tortoise = symbol; | |
787 | ||
ce5b453a | 788 | while (hare->redirect == SYMBOL_VARALIAS) |
f35d5bad | 789 | { |
ce5b453a SM |
790 | hare = SYMBOL_ALIAS (hare); |
791 | if (hare->redirect != SYMBOL_VARALIAS) | |
f35d5bad | 792 | break; |
bfb96cb7 | 793 | |
ce5b453a SM |
794 | hare = SYMBOL_ALIAS (hare); |
795 | tortoise = SYMBOL_ALIAS (tortoise); | |
f35d5bad | 796 | |
ad97b375 SM |
797 | if (hare == tortoise) |
798 | { | |
799 | Lisp_Object tem; | |
800 | XSETSYMBOL (tem, symbol); | |
801 | xsignal1 (Qcyclic_variable_indirection, tem); | |
802 | } | |
f35d5bad GM |
803 | } |
804 | ||
805 | return hare; | |
806 | } | |
807 | ||
808 | ||
809 | DEFUN ("indirect-variable", Findirect_variable, Sindirect_variable, 1, 1, 0, | |
8c1a1077 PJ |
810 | doc: /* Return the variable at the end of OBJECT's variable chain. |
811 | If OBJECT is a symbol, follow all variable indirections and return the final | |
812 | variable. If OBJECT is not a symbol, just return it. | |
813 | Signal a cyclic-variable-indirection error if there is a loop in the | |
814 | variable chain of symbols. */) | |
5842a27b | 815 | (Lisp_Object object) |
f35d5bad GM |
816 | { |
817 | if (SYMBOLP (object)) | |
946f9a5b PE |
818 | { |
819 | struct Lisp_Symbol *sym = indirect_variable (XSYMBOL (object)); | |
820 | XSETSYMBOL (object, sym); | |
821 | } | |
f35d5bad GM |
822 | return object; |
823 | } | |
824 | ||
7921925c JB |
825 | |
826 | /* Given the raw contents of a symbol value cell, | |
827 | return the Lisp value of the symbol. | |
828 | This does not handle buffer-local variables; use | |
829 | swap_in_symval_forwarding for that. */ | |
830 | ||
831 | Lisp_Object | |
971de7fb | 832 | do_symval_forwarding (register union Lisp_Fwd *valcontents) |
7921925c JB |
833 | { |
834 | register Lisp_Object val; | |
ce5b453a SM |
835 | switch (XFWDTYPE (valcontents)) |
836 | { | |
837 | case Lisp_Fwd_Int: | |
838 | XSETINT (val, *XINTFWD (valcontents)->intvar); | |
839 | return val; | |
840 | ||
841 | case Lisp_Fwd_Bool: | |
842 | return (*XBOOLFWD (valcontents)->boolvar ? Qt : Qnil); | |
843 | ||
844 | case Lisp_Fwd_Obj: | |
845 | return *XOBJFWD (valcontents)->objvar; | |
846 | ||
847 | case Lisp_Fwd_Buffer_Obj: | |
848 | return PER_BUFFER_VALUE (current_buffer, | |
849 | XBUFFER_OBJFWD (valcontents)->offset); | |
850 | ||
851 | case Lisp_Fwd_Kboard_Obj: | |
852 | /* We used to simply use current_kboard here, but from Lisp | |
a98edce9 | 853 | code, its value is often unexpected. It seems nicer to |
ce5b453a SM |
854 | allow constructions like this to work as intuitively expected: |
855 | ||
856 | (with-selected-frame frame | |
857 | (define-key local-function-map "\eOP" [f1])) | |
858 | ||
859 | On the other hand, this affects the semantics of | |
860 | last-command and real-last-command, and people may rely on | |
861 | that. I took a quick look at the Lisp codebase, and I | |
862 | don't think anything will break. --lorentey */ | |
863 | return *(Lisp_Object *)(XKBOARD_OBJFWD (valcontents)->offset | |
864 | + (char *)FRAME_KBOARD (SELECTED_FRAME ())); | |
865 | default: abort (); | |
866 | } | |
7921925c JB |
867 | } |
868 | ||
d9c2a0f2 EN |
869 | /* Store NEWVAL into SYMBOL, where VALCONTENTS is found in the value cell |
870 | of SYMBOL. If SYMBOL is buffer-local, VALCONTENTS should be the | |
7921925c | 871 | buffer-independent contents of the value cell: forwarded just one |
7a283f36 GM |
872 | step past the buffer-localness. |
873 | ||
874 | BUF non-zero means set the value in buffer BUF instead of the | |
875 | current buffer. This only plays a role for per-buffer variables. */ | |
7921925c | 876 | |
ce5b453a | 877 | static void |
971de7fb | 878 | store_symval_forwarding (union Lisp_Fwd *valcontents, register Lisp_Object newval, struct buffer *buf) |
7921925c | 879 | { |
ce5b453a | 880 | switch (XFWDTYPE (valcontents)) |
7921925c | 881 | { |
ce5b453a SM |
882 | case Lisp_Fwd_Int: |
883 | CHECK_NUMBER (newval); | |
884 | *XINTFWD (valcontents)->intvar = XINT (newval); | |
885 | break; | |
aa3830c4 | 886 | |
ce5b453a SM |
887 | case Lisp_Fwd_Bool: |
888 | *XBOOLFWD (valcontents)->boolvar = !NILP (newval); | |
889 | break; | |
aa3830c4 | 890 | |
ce5b453a SM |
891 | case Lisp_Fwd_Obj: |
892 | *XOBJFWD (valcontents)->objvar = newval; | |
aa3830c4 | 893 | |
ce5b453a SM |
894 | /* If this variable is a default for something stored |
895 | in the buffer itself, such as default-fill-column, | |
896 | find the buffers that don't have local values for it | |
897 | and update them. */ | |
898 | if (XOBJFWD (valcontents)->objvar > (Lisp_Object *) &buffer_defaults | |
899 | && XOBJFWD (valcontents)->objvar < (Lisp_Object *) (&buffer_defaults + 1)) | |
46b2ac21 | 900 | { |
ce5b453a SM |
901 | int offset = ((char *) XOBJFWD (valcontents)->objvar |
902 | - (char *) &buffer_defaults); | |
903 | int idx = PER_BUFFER_IDX (offset); | |
aa3830c4 | 904 | |
ce5b453a | 905 | Lisp_Object tail; |
aa3830c4 | 906 | |
ce5b453a SM |
907 | if (idx <= 0) |
908 | break; | |
aa3830c4 | 909 | |
ce5b453a | 910 | for (tail = Vbuffer_alist; CONSP (tail); tail = XCDR (tail)) |
6b61353c | 911 | { |
b9b84fa9 | 912 | Lisp_Object lbuf; |
ce5b453a | 913 | struct buffer *b; |
6b61353c | 914 | |
b9b84fa9 PE |
915 | lbuf = Fcdr (XCAR (tail)); |
916 | if (!BUFFERP (lbuf)) continue; | |
917 | b = XBUFFER (lbuf); | |
6b61353c | 918 | |
ce5b453a SM |
919 | if (! PER_BUFFER_VALUE_P (b, idx)) |
920 | PER_BUFFER_VALUE (b, offset) = newval; | |
6b61353c | 921 | } |
ce5b453a SM |
922 | } |
923 | break; | |
7403b5c8 | 924 | |
ce5b453a SM |
925 | case Lisp_Fwd_Buffer_Obj: |
926 | { | |
927 | int offset = XBUFFER_OBJFWD (valcontents)->offset; | |
928 | Lisp_Object type = XBUFFER_OBJFWD (valcontents)->slottype; | |
929 | ||
930 | if (!(NILP (type) || NILP (newval) | |
931 | || (XINT (type) == LISP_INT_TAG | |
932 | ? INTEGERP (newval) | |
933 | : XTYPE (newval) == XINT (type)))) | |
934 | buffer_slot_type_mismatch (newval, XINT (type)); | |
935 | ||
936 | if (buf == NULL) | |
937 | buf = current_buffer; | |
938 | PER_BUFFER_VALUE (buf, offset) = newval; | |
939 | } | |
940 | break; | |
7403b5c8 | 941 | |
ce5b453a SM |
942 | case Lisp_Fwd_Kboard_Obj: |
943 | { | |
944 | char *base = (char *) FRAME_KBOARD (SELECTED_FRAME ()); | |
945 | char *p = base + XKBOARD_OBJFWD (valcontents)->offset; | |
946 | *(Lisp_Object *) p = newval; | |
947 | } | |
7921925c JB |
948 | break; |
949 | ||
7921925c | 950 | default: |
ce5b453a | 951 | abort (); /* goto def; */ |
7921925c JB |
952 | } |
953 | } | |
954 | ||
b0d53add GM |
955 | /* Set up SYMBOL to refer to its global binding. |
956 | This makes it safe to alter the status of other bindings. */ | |
957 | ||
958 | void | |
971de7fb | 959 | swap_in_global_binding (struct Lisp_Symbol *symbol) |
b0d53add | 960 | { |
ce5b453a | 961 | struct Lisp_Buffer_Local_Value *blv = SYMBOL_BLV (symbol); |
b0d53add GM |
962 | |
963 | /* Unload the previously loaded binding. */ | |
ce5b453a SM |
964 | if (blv->fwd) |
965 | SET_BLV_VALUE (blv, do_symval_forwarding (blv->fwd)); | |
bfb96cb7 | 966 | |
b0d53add | 967 | /* Select the global binding in the symbol. */ |
ce5b453a SM |
968 | blv->valcell = blv->defcell; |
969 | if (blv->fwd) | |
970 | store_symval_forwarding (blv->fwd, XCDR (blv->defcell), NULL); | |
b0d53add GM |
971 | |
972 | /* Indicate that the global binding is set up now. */ | |
ce5b453a SM |
973 | blv->where = Qnil; |
974 | SET_BLV_FOUND (blv, 0); | |
b0d53add GM |
975 | } |
976 | ||
2829d05f | 977 | /* Set up the buffer-local symbol SYMBOL for validity in the current buffer. |
42e975f0 RS |
978 | VALCONTENTS is the contents of its value cell, |
979 | which points to a struct Lisp_Buffer_Local_Value. | |
980 | ||
981 | Return the value forwarded one step past the buffer-local stage. | |
982 | This could be another forwarding pointer. */ | |
7921925c | 983 | |
ce5b453a | 984 | static void |
971de7fb | 985 | swap_in_symval_forwarding (struct Lisp_Symbol *symbol, struct Lisp_Buffer_Local_Value *blv) |
7921925c | 986 | { |
7921925c | 987 | register Lisp_Object tem1; |
bfb96cb7 | 988 | |
ce5b453a SM |
989 | eassert (blv == SYMBOL_BLV (symbol)); |
990 | ||
991 | tem1 = blv->where; | |
7921925c | 992 | |
42e975f0 | 993 | if (NILP (tem1) |
ce5b453a SM |
994 | || (blv->frame_local |
995 | ? !EQ (selected_frame, tem1) | |
996 | : current_buffer != XBUFFER (tem1))) | |
7921925c | 997 | { |
bfb96cb7 | 998 | |
42e975f0 | 999 | /* Unload the previously loaded binding. */ |
ce5b453a SM |
1000 | tem1 = blv->valcell; |
1001 | if (blv->fwd) | |
1002 | SET_BLV_VALUE (blv, do_symval_forwarding (blv->fwd)); | |
42e975f0 | 1003 | /* Choose the new binding. */ |
ce5b453a SM |
1004 | { |
1005 | Lisp_Object var; | |
1006 | XSETSYMBOL (var, symbol); | |
1007 | if (blv->frame_local) | |
1008 | { | |
1009 | tem1 = assq_no_quit (var, XFRAME (selected_frame)->param_alist); | |
1010 | blv->where = selected_frame; | |
1011 | } | |
1012 | else | |
1013 | { | |
4b4deea2 | 1014 | tem1 = assq_no_quit (var, BVAR (current_buffer, local_var_alist)); |
ce5b453a SM |
1015 | XSETBUFFER (blv->where, current_buffer); |
1016 | } | |
1017 | } | |
1018 | if (!(blv->found = !NILP (tem1))) | |
1019 | tem1 = blv->defcell; | |
b0c2d1c6 | 1020 | |
42e975f0 | 1021 | /* Load the new binding. */ |
ce5b453a SM |
1022 | blv->valcell = tem1; |
1023 | if (blv->fwd) | |
1024 | store_symval_forwarding (blv->fwd, BLV_VALUE (blv), NULL); | |
7921925c | 1025 | } |
7921925c JB |
1026 | } |
1027 | \f | |
14e76af9 JB |
1028 | /* Find the value of a symbol, returning Qunbound if it's not bound. |
1029 | This is helpful for code which just wants to get a variable's value | |
8e6208c5 | 1030 | if it has one, without signaling an error. |
14e76af9 JB |
1031 | Note that it must not be possible to quit |
1032 | within this function. Great care is required for this. */ | |
7921925c | 1033 | |
14e76af9 | 1034 | Lisp_Object |
971de7fb | 1035 | find_symbol_value (Lisp_Object symbol) |
7921925c | 1036 | { |
ce5b453a | 1037 | struct Lisp_Symbol *sym; |
bfb96cb7 | 1038 | |
b7826503 | 1039 | CHECK_SYMBOL (symbol); |
ce5b453a | 1040 | sym = XSYMBOL (symbol); |
7921925c | 1041 | |
ce5b453a SM |
1042 | start: |
1043 | switch (sym->redirect) | |
1044 | { | |
1045 | case SYMBOL_VARALIAS: sym = indirect_variable (sym); goto start; | |
1046 | case SYMBOL_PLAINVAL: return SYMBOL_VAL (sym); | |
1047 | case SYMBOL_LOCALIZED: | |
1048 | { | |
1049 | struct Lisp_Buffer_Local_Value *blv = SYMBOL_BLV (sym); | |
1050 | swap_in_symval_forwarding (sym, blv); | |
1051 | return blv->fwd ? do_symval_forwarding (blv->fwd) : BLV_VALUE (blv); | |
1052 | } | |
1053 | /* FALLTHROUGH */ | |
1054 | case SYMBOL_FORWARDED: | |
1055 | return do_symval_forwarding (SYMBOL_FWD (sym)); | |
1056 | default: abort (); | |
1057 | } | |
7921925c JB |
1058 | } |
1059 | ||
a7ca3326 | 1060 | DEFUN ("symbol-value", Fsymbol_value, Ssymbol_value, 1, 1, 0, |
8c1a1077 | 1061 | doc: /* Return SYMBOL's value. Error if that is void. */) |
5842a27b | 1062 | (Lisp_Object symbol) |
14e76af9 | 1063 | { |
0671d7c0 | 1064 | Lisp_Object val; |
14e76af9 | 1065 | |
d9c2a0f2 | 1066 | val = find_symbol_value (symbol); |
740ef0b5 | 1067 | if (!EQ (val, Qunbound)) |
14e76af9 | 1068 | return val; |
740ef0b5 KS |
1069 | |
1070 | xsignal1 (Qvoid_variable, symbol); | |
14e76af9 JB |
1071 | } |
1072 | ||
a7ca3326 | 1073 | DEFUN ("set", Fset, Sset, 2, 2, 0, |
8c1a1077 | 1074 | doc: /* Set SYMBOL's value to NEWVAL, and return NEWVAL. */) |
5842a27b | 1075 | (register Lisp_Object symbol, Lisp_Object newval) |
05ef7169 | 1076 | { |
94b612ad | 1077 | set_internal (symbol, newval, Qnil, 0); |
ce5b453a | 1078 | return newval; |
05ef7169 RS |
1079 | } |
1080 | ||
1f35ce36 RS |
1081 | /* Return 1 if SYMBOL currently has a let-binding |
1082 | which was made in the buffer that is now current. */ | |
1083 | ||
1084 | static int | |
ce5b453a | 1085 | let_shadows_buffer_binding_p (struct Lisp_Symbol *symbol) |
1f35ce36 | 1086 | { |
ce5b453a | 1087 | struct specbinding *p; |
1f35ce36 | 1088 | |
d311d28c PE |
1089 | for (p = specpdl_ptr; p > specpdl; ) |
1090 | if ((--p)->func == NULL | |
f35d5bad GM |
1091 | && CONSP (p->symbol)) |
1092 | { | |
ad97b375 | 1093 | struct Lisp_Symbol *let_bound_symbol = XSYMBOL (XCAR (p->symbol)); |
ce5b453a SM |
1094 | eassert (let_bound_symbol->redirect != SYMBOL_VARALIAS); |
1095 | if (symbol == let_bound_symbol | |
f35d5bad | 1096 | && XBUFFER (XCDR (XCDR (p->symbol))) == current_buffer) |
d311d28c | 1097 | return 1; |
f35d5bad | 1098 | } |
1f35ce36 | 1099 | |
d311d28c | 1100 | return 0; |
1f35ce36 RS |
1101 | } |
1102 | ||
ce5b453a | 1103 | static int |
971de7fb | 1104 | let_shadows_global_binding_p (Lisp_Object symbol) |
ce5b453a SM |
1105 | { |
1106 | struct specbinding *p; | |
1107 | ||
bc985141 | 1108 | for (p = specpdl_ptr; p > specpdl; ) |
d311d28c PE |
1109 | if ((--p)->func == NULL && EQ (p->symbol, symbol)) |
1110 | return 1; | |
ce5b453a | 1111 | |
d311d28c | 1112 | return 0; |
ce5b453a SM |
1113 | } |
1114 | ||
25638b07 | 1115 | /* Store the value NEWVAL into SYMBOL. |
94b612ad SM |
1116 | If buffer/frame-locality is an issue, WHERE specifies which context to use. |
1117 | (nil stands for the current buffer/frame). | |
2829d05f | 1118 | |
05ef7169 RS |
1119 | If BINDFLAG is zero, then if this symbol is supposed to become |
1120 | local in every buffer where it is set, then we make it local. | |
1121 | If BINDFLAG is nonzero, we don't do that. */ | |
1122 | ||
ce5b453a | 1123 | void |
971de7fb | 1124 | set_internal (register Lisp_Object symbol, register Lisp_Object newval, register Lisp_Object where, int bindflag) |
7921925c | 1125 | { |
1bfcade3 | 1126 | int voide = EQ (newval, Qunbound); |
ce5b453a SM |
1127 | struct Lisp_Symbol *sym; |
1128 | Lisp_Object tem1; | |
7921925c | 1129 | |
2829d05f | 1130 | /* If restoring in a dead buffer, do nothing. */ |
94b612ad SM |
1131 | /* if (BUFFERP (where) && NILP (XBUFFER (where)->name)) |
1132 | return; */ | |
2829d05f | 1133 | |
b7826503 | 1134 | CHECK_SYMBOL (symbol); |
ce5b453a | 1135 | if (SYMBOL_CONSTANT_P (symbol)) |
7921925c | 1136 | { |
ce5b453a SM |
1137 | if (NILP (Fkeywordp (symbol)) |
1138 | || !EQ (newval, Fsymbol_value (symbol))) | |
1139 | xsignal1 (Qsetting_constant, symbol); | |
1140 | else | |
1141 | /* Allow setting keywords to their own value. */ | |
1142 | return; | |
7921925c | 1143 | } |
42e975f0 | 1144 | |
ce5b453a | 1145 | sym = XSYMBOL (symbol); |
7921925c | 1146 | |
ce5b453a SM |
1147 | start: |
1148 | switch (sym->redirect) | |
1149 | { | |
1150 | case SYMBOL_VARALIAS: sym = indirect_variable (sym); goto start; | |
1151 | case SYMBOL_PLAINVAL: SET_SYMBOL_VAL (sym , newval); return; | |
1152 | case SYMBOL_LOCALIZED: | |
1153 | { | |
1154 | struct Lisp_Buffer_Local_Value *blv = SYMBOL_BLV (sym); | |
94b612ad SM |
1155 | if (NILP (where)) |
1156 | { | |
1157 | if (blv->frame_local) | |
1158 | where = selected_frame; | |
1159 | else | |
1160 | XSETBUFFER (where, current_buffer); | |
1161 | } | |
ce5b453a SM |
1162 | /* If the current buffer is not the buffer whose binding is |
1163 | loaded, or if there may be frame-local bindings and the frame | |
1164 | isn't the right one, or if it's a Lisp_Buffer_Local_Value and | |
1165 | the default binding is loaded, the loaded binding may be the | |
1166 | wrong one. */ | |
94b612ad | 1167 | if (!EQ (blv->where, where) |
ce5b453a SM |
1168 | /* Also unload a global binding (if the var is local_if_set). */ |
1169 | || (EQ (blv->valcell, blv->defcell))) | |
1170 | { | |
1171 | /* The currently loaded binding is not necessarily valid. | |
1172 | We need to unload it, and choose a new binding. */ | |
1173 | ||
1174 | /* Write out `realvalue' to the old loaded binding. */ | |
1175 | if (blv->fwd) | |
1176 | SET_BLV_VALUE (blv, do_symval_forwarding (blv->fwd)); | |
b0c2d1c6 | 1177 | |
ce5b453a | 1178 | /* Find the new binding. */ |
94b612ad SM |
1179 | XSETSYMBOL (symbol, sym); /* May have changed via aliasing. */ |
1180 | tem1 = Fassq (symbol, | |
1181 | (blv->frame_local | |
1182 | ? XFRAME (where)->param_alist | |
4b4deea2 | 1183 | : BVAR (XBUFFER (where), local_var_alist))); |
94b612ad | 1184 | blv->where = where; |
ce5b453a SM |
1185 | blv->found = 1; |
1186 | ||
1187 | if (NILP (tem1)) | |
1188 | { | |
1189 | /* This buffer still sees the default value. */ | |
1190 | ||
1191 | /* If the variable is a Lisp_Some_Buffer_Local_Value, | |
1192 | or if this is `let' rather than `set', | |
1193 | make CURRENT-ALIST-ELEMENT point to itself, | |
1194 | indicating that we're seeing the default value. | |
1195 | Likewise if the variable has been let-bound | |
1196 | in the current buffer. */ | |
1197 | if (bindflag || !blv->local_if_set | |
1198 | || let_shadows_buffer_binding_p (sym)) | |
1199 | { | |
1200 | blv->found = 0; | |
1201 | tem1 = blv->defcell; | |
1202 | } | |
1203 | /* If it's a local_if_set, being set not bound, | |
1204 | and we're not within a let that was made for this buffer, | |
1205 | create a new buffer-local binding for the variable. | |
1206 | That means, give this buffer a new assoc for a local value | |
1207 | and load that binding. */ | |
1208 | else | |
1209 | { | |
1210 | /* local_if_set is only supported for buffer-local | |
1211 | bindings, not for frame-local bindings. */ | |
1212 | eassert (!blv->frame_local); | |
1213 | tem1 = Fcons (symbol, XCDR (blv->defcell)); | |
4b4deea2 TT |
1214 | BVAR (XBUFFER (where), local_var_alist) |
1215 | = Fcons (tem1, BVAR (XBUFFER (where), local_var_alist)); | |
ce5b453a SM |
1216 | } |
1217 | } | |
1218 | ||
1219 | /* Record which binding is now loaded. */ | |
1220 | blv->valcell = tem1; | |
1221 | } | |
b0c2d1c6 | 1222 | |
ce5b453a SM |
1223 | /* Store the new value in the cons cell. */ |
1224 | SET_BLV_VALUE (blv, newval); | |
d8cafeb5 | 1225 | |
ce5b453a SM |
1226 | if (blv->fwd) |
1227 | { | |
1228 | if (voide) | |
1229 | /* If storing void (making the symbol void), forward only through | |
1230 | buffer-local indicator, not through Lisp_Objfwd, etc. */ | |
1231 | blv->fwd = NULL; | |
1232 | else | |
94b612ad SM |
1233 | store_symval_forwarding (blv->fwd, newval, |
1234 | BUFFERP (where) | |
1235 | ? XBUFFER (where) : current_buffer); | |
ce5b453a SM |
1236 | } |
1237 | break; | |
1238 | } | |
1239 | case SYMBOL_FORWARDED: | |
1240 | { | |
94b612ad SM |
1241 | struct buffer *buf |
1242 | = BUFFERP (where) ? XBUFFER (where) : current_buffer; | |
ce5b453a SM |
1243 | union Lisp_Fwd *innercontents = SYMBOL_FWD (sym); |
1244 | if (BUFFER_OBJFWDP (innercontents)) | |
1245 | { | |
1246 | int offset = XBUFFER_OBJFWD (innercontents)->offset; | |
1247 | int idx = PER_BUFFER_IDX (offset); | |
1248 | if (idx > 0 | |
1249 | && !bindflag | |
1250 | && !let_shadows_buffer_binding_p (sym)) | |
1251 | SET_PER_BUFFER_VALUE_P (buf, idx, 1); | |
1252 | } | |
569c11e3 | 1253 | |
ce5b453a SM |
1254 | if (voide) |
1255 | { /* If storing void (making the symbol void), forward only through | |
1256 | buffer-local indicator, not through Lisp_Objfwd, etc. */ | |
1257 | sym->redirect = SYMBOL_PLAINVAL; | |
1258 | SET_SYMBOL_VAL (sym, newval); | |
1259 | } | |
1260 | else | |
1261 | store_symval_forwarding (/* sym, */ innercontents, newval, buf); | |
1262 | break; | |
1263 | } | |
1264 | default: abort (); | |
7921925c | 1265 | } |
ce5b453a | 1266 | return; |
7921925c JB |
1267 | } |
1268 | \f | |
1269 | /* Access or set a buffer-local symbol's default value. */ | |
1270 | ||
d9c2a0f2 | 1271 | /* Return the default value of SYMBOL, but don't check for voidness. |
1bfcade3 | 1272 | Return Qunbound if it is void. */ |
7921925c | 1273 | |
112396d6 | 1274 | static Lisp_Object |
971de7fb | 1275 | default_value (Lisp_Object symbol) |
7921925c | 1276 | { |
ce5b453a | 1277 | struct Lisp_Symbol *sym; |
7921925c | 1278 | |
b7826503 | 1279 | CHECK_SYMBOL (symbol); |
ce5b453a | 1280 | sym = XSYMBOL (symbol); |
7921925c | 1281 | |
ce5b453a SM |
1282 | start: |
1283 | switch (sym->redirect) | |
7921925c | 1284 | { |
ce5b453a SM |
1285 | case SYMBOL_VARALIAS: sym = indirect_variable (sym); goto start; |
1286 | case SYMBOL_PLAINVAL: return SYMBOL_VAL (sym); | |
1287 | case SYMBOL_LOCALIZED: | |
1288 | { | |
1289 | /* If var is set up for a buffer that lacks a local value for it, | |
1290 | the current value is nominally the default value. | |
1291 | But the `realvalue' slot may be more up to date, since | |
1292 | ordinary setq stores just that slot. So use that. */ | |
1293 | struct Lisp_Buffer_Local_Value *blv = SYMBOL_BLV (sym); | |
1294 | if (blv->fwd && EQ (blv->valcell, blv->defcell)) | |
1295 | return do_symval_forwarding (blv->fwd); | |
1296 | else | |
1297 | return XCDR (blv->defcell); | |
1298 | } | |
1299 | case SYMBOL_FORWARDED: | |
1300 | { | |
1301 | union Lisp_Fwd *valcontents = SYMBOL_FWD (sym); | |
7921925c | 1302 | |
ce5b453a SM |
1303 | /* For a built-in buffer-local variable, get the default value |
1304 | rather than letting do_symval_forwarding get the current value. */ | |
1305 | if (BUFFER_OBJFWDP (valcontents)) | |
1306 | { | |
1307 | int offset = XBUFFER_OBJFWD (valcontents)->offset; | |
1308 | if (PER_BUFFER_IDX (offset) != 0) | |
1309 | return PER_BUFFER_DEFAULT (offset); | |
1310 | } | |
1311 | ||
1312 | /* For other variables, get the current value. */ | |
1313 | return do_symval_forwarding (valcontents); | |
1314 | } | |
1315 | default: abort (); | |
7921925c | 1316 | } |
7921925c JB |
1317 | } |
1318 | ||
a7ca3326 | 1319 | DEFUN ("default-boundp", Fdefault_boundp, Sdefault_boundp, 1, 1, 0, |
8c1a1077 PJ |
1320 | doc: /* Return t if SYMBOL has a non-void default value. |
1321 | This is the value that is seen in buffers that do not have their own values | |
1322 | for this variable. */) | |
5842a27b | 1323 | (Lisp_Object symbol) |
7921925c JB |
1324 | { |
1325 | register Lisp_Object value; | |
1326 | ||
d9c2a0f2 | 1327 | value = default_value (symbol); |
1bfcade3 | 1328 | return (EQ (value, Qunbound) ? Qnil : Qt); |
7921925c JB |
1329 | } |
1330 | ||
a7ca3326 | 1331 | DEFUN ("default-value", Fdefault_value, Sdefault_value, 1, 1, 0, |
8c1a1077 PJ |
1332 | doc: /* Return SYMBOL's default value. |
1333 | This is the value that is seen in buffers that do not have their own values | |
1334 | for this variable. The default value is meaningful for variables with | |
1335 | local bindings in certain buffers. */) | |
5842a27b | 1336 | (Lisp_Object symbol) |
7921925c JB |
1337 | { |
1338 | register Lisp_Object value; | |
1339 | ||
d9c2a0f2 | 1340 | value = default_value (symbol); |
740ef0b5 KS |
1341 | if (!EQ (value, Qunbound)) |
1342 | return value; | |
1343 | ||
1344 | xsignal1 (Qvoid_variable, symbol); | |
7921925c JB |
1345 | } |
1346 | ||
a7ca3326 | 1347 | DEFUN ("set-default", Fset_default, Sset_default, 2, 2, 0, |
6e86a75d | 1348 | doc: /* Set SYMBOL's default value to VALUE. SYMBOL and VALUE are evaluated. |
8c1a1077 PJ |
1349 | The default value is seen in buffers that do not have their own values |
1350 | for this variable. */) | |
5842a27b | 1351 | (Lisp_Object symbol, Lisp_Object value) |
7921925c | 1352 | { |
ce5b453a | 1353 | struct Lisp_Symbol *sym; |
7921925c | 1354 | |
b7826503 | 1355 | CHECK_SYMBOL (symbol); |
ce5b453a | 1356 | if (SYMBOL_CONSTANT_P (symbol)) |
7921925c | 1357 | { |
ce5b453a SM |
1358 | if (NILP (Fkeywordp (symbol)) |
1359 | || !EQ (value, Fdefault_value (symbol))) | |
1360 | xsignal1 (Qsetting_constant, symbol); | |
1361 | else | |
1362 | /* Allow setting keywords to their own value. */ | |
1363 | return value; | |
1364 | } | |
1365 | sym = XSYMBOL (symbol); | |
7921925c | 1366 | |
ce5b453a SM |
1367 | start: |
1368 | switch (sym->redirect) | |
1369 | { | |
1370 | case SYMBOL_VARALIAS: sym = indirect_variable (sym); goto start; | |
1371 | case SYMBOL_PLAINVAL: return Fset (symbol, value); | |
1372 | case SYMBOL_LOCALIZED: | |
1373 | { | |
1374 | struct Lisp_Buffer_Local_Value *blv = SYMBOL_BLV (sym); | |
984ef137 | 1375 | |
ce5b453a SM |
1376 | /* Store new value into the DEFAULT-VALUE slot. */ |
1377 | XSETCDR (blv->defcell, value); | |
bfb96cb7 | 1378 | |
ce5b453a SM |
1379 | /* If the default binding is now loaded, set the REALVALUE slot too. */ |
1380 | if (blv->fwd && EQ (blv->defcell, blv->valcell)) | |
1381 | store_symval_forwarding (blv->fwd, value, NULL); | |
1382 | return value; | |
1383 | } | |
1384 | case SYMBOL_FORWARDED: | |
1385 | { | |
1386 | union Lisp_Fwd *valcontents = SYMBOL_FWD (sym); | |
7921925c | 1387 | |
ce5b453a SM |
1388 | /* Handle variables like case-fold-search that have special slots |
1389 | in the buffer. | |
1390 | Make them work apparently like Lisp_Buffer_Local_Value variables. */ | |
1391 | if (BUFFER_OBJFWDP (valcontents)) | |
1392 | { | |
1393 | int offset = XBUFFER_OBJFWD (valcontents)->offset; | |
1394 | int idx = PER_BUFFER_IDX (offset); | |
7921925c | 1395 | |
ce5b453a | 1396 | PER_BUFFER_DEFAULT (offset) = value; |
7921925c | 1397 | |
ce5b453a SM |
1398 | /* If this variable is not always local in all buffers, |
1399 | set it in the buffers that don't nominally have a local value. */ | |
1400 | if (idx > 0) | |
1401 | { | |
1402 | struct buffer *b; | |
7921925c | 1403 | |
52b852c7 | 1404 | FOR_EACH_BUFFER (b) |
ce5b453a SM |
1405 | if (!PER_BUFFER_VALUE_P (b, idx)) |
1406 | PER_BUFFER_VALUE (b, offset) = value; | |
1407 | } | |
1408 | return value; | |
1409 | } | |
1410 | else | |
1411 | return Fset (symbol, value); | |
1412 | } | |
1413 | default: abort (); | |
1414 | } | |
7921925c JB |
1415 | } |
1416 | ||
7a7df7ac | 1417 | DEFUN ("setq-default", Fsetq_default, Ssetq_default, 0, UNEVALLED, 0, |
8c1a1077 PJ |
1418 | doc: /* Set the default value of variable VAR to VALUE. |
1419 | VAR, the variable name, is literal (not evaluated); | |
bfb96cb7 | 1420 | VALUE is an expression: it is evaluated and its value returned. |
8c1a1077 PJ |
1421 | The default value of a variable is seen in buffers |
1422 | that do not have their own values for the variable. | |
1423 | ||
1424 | More generally, you can use multiple variables and values, as in | |
948d2995 JB |
1425 | (setq-default VAR VALUE VAR VALUE...) |
1426 | This sets each VAR's default value to the corresponding VALUE. | |
1427 | The VALUE for the Nth VAR can refer to the new default values | |
1428 | of previous VARs. | |
70e9f399 | 1429 | usage: (setq-default [VAR VALUE]...) */) |
5842a27b | 1430 | (Lisp_Object args) |
7921925c JB |
1431 | { |
1432 | register Lisp_Object args_left; | |
d9c2a0f2 | 1433 | register Lisp_Object val, symbol; |
7921925c JB |
1434 | struct gcpro gcpro1; |
1435 | ||
a33ef3ab | 1436 | if (NILP (args)) |
7921925c JB |
1437 | return Qnil; |
1438 | ||
1439 | args_left = args; | |
1440 | GCPRO1 (args); | |
1441 | ||
1442 | do | |
1443 | { | |
defb1411 | 1444 | val = eval_sub (Fcar (Fcdr (args_left))); |
d2fde41d | 1445 | symbol = XCAR (args_left); |
d9c2a0f2 | 1446 | Fset_default (symbol, val); |
d2fde41d | 1447 | args_left = Fcdr (XCDR (args_left)); |
7921925c | 1448 | } |
a33ef3ab | 1449 | while (!NILP (args_left)); |
7921925c JB |
1450 | |
1451 | UNGCPRO; | |
1452 | return val; | |
1453 | } | |
1454 | \f | |
a5ca2b75 JB |
1455 | /* Lisp functions for creating and removing buffer-local variables. */ |
1456 | ||
ce5b453a SM |
1457 | union Lisp_Val_Fwd |
1458 | { | |
1459 | Lisp_Object value; | |
1460 | union Lisp_Fwd *fwd; | |
1461 | }; | |
1462 | ||
1463 | static struct Lisp_Buffer_Local_Value * | |
1464 | make_blv (struct Lisp_Symbol *sym, int forwarded, union Lisp_Val_Fwd valcontents) | |
1465 | { | |
38182d90 | 1466 | struct Lisp_Buffer_Local_Value *blv = xmalloc (sizeof *blv); |
c632dfda JD |
1467 | Lisp_Object symbol; |
1468 | Lisp_Object tem; | |
1469 | ||
1470 | XSETSYMBOL (symbol, sym); | |
1471 | tem = Fcons (symbol, (forwarded | |
1472 | ? do_symval_forwarding (valcontents.fwd) | |
1473 | : valcontents.value)); | |
1474 | ||
ce5b453a SM |
1475 | /* Buffer_Local_Values cannot have as realval a buffer-local |
1476 | or keyboard-local forwarding. */ | |
1477 | eassert (!(forwarded && BUFFER_OBJFWDP (valcontents.fwd))); | |
1478 | eassert (!(forwarded && KBOARD_OBJFWDP (valcontents.fwd))); | |
1479 | blv->fwd = forwarded ? valcontents.fwd : NULL; | |
1480 | blv->where = Qnil; | |
1481 | blv->frame_local = 0; | |
1482 | blv->local_if_set = 0; | |
1483 | blv->defcell = tem; | |
1484 | blv->valcell = tem; | |
1485 | SET_BLV_FOUND (blv, 0); | |
1486 | return blv; | |
1487 | } | |
1488 | ||
a7ca3326 | 1489 | DEFUN ("make-variable-buffer-local", Fmake_variable_buffer_local, |
16a97296 | 1490 | Smake_variable_buffer_local, 1, 1, "vMake Variable Buffer Local: ", |
8c1a1077 PJ |
1491 | doc: /* Make VARIABLE become buffer-local whenever it is set. |
1492 | At any time, the value for the current buffer is in effect, | |
1493 | unless the variable has never been set in this buffer, | |
1494 | in which case the default value is in effect. | |
1495 | Note that binding the variable with `let', or setting it while | |
1496 | a `let'-style binding made in this buffer is in effect, | |
bfb96cb7 | 1497 | does not make the variable buffer-local. Return VARIABLE. |
8c1a1077 | 1498 | |
a9908653 RS |
1499 | In most cases it is better to use `make-local-variable', |
1500 | which makes a variable local in just one buffer. | |
1501 | ||
8c1a1077 | 1502 | The function `default-value' gets the default value and `set-default' sets it. */) |
5842a27b | 1503 | (register Lisp_Object variable) |
7921925c | 1504 | { |
ad97b375 | 1505 | struct Lisp_Symbol *sym; |
ce5b453a | 1506 | struct Lisp_Buffer_Local_Value *blv = NULL; |
bfe3e0a2 | 1507 | union Lisp_Val_Fwd valcontents IF_LINT (= {LISP_INITIALLY_ZERO}); |
cdef261f | 1508 | int forwarded IF_LINT (= 0); |
7921925c | 1509 | |
b7826503 | 1510 | CHECK_SYMBOL (variable); |
ce5b453a | 1511 | sym = XSYMBOL (variable); |
7921925c | 1512 | |
ce5b453a SM |
1513 | start: |
1514 | switch (sym->redirect) | |
fd9440c5 | 1515 | { |
ce5b453a SM |
1516 | case SYMBOL_VARALIAS: sym = indirect_variable (sym); goto start; |
1517 | case SYMBOL_PLAINVAL: | |
1518 | forwarded = 0; valcontents.value = SYMBOL_VAL (sym); | |
1519 | if (EQ (valcontents.value, Qunbound)) | |
1520 | valcontents.value = Qnil; | |
1521 | break; | |
1522 | case SYMBOL_LOCALIZED: | |
1523 | blv = SYMBOL_BLV (sym); | |
1524 | if (blv->frame_local) | |
1525 | error ("Symbol %s may not be buffer-local", | |
1526 | SDATA (SYMBOL_NAME (variable))); | |
1527 | break; | |
1528 | case SYMBOL_FORWARDED: | |
1529 | forwarded = 1; valcontents.fwd = SYMBOL_FWD (sym); | |
1530 | if (KBOARD_OBJFWDP (valcontents.fwd)) | |
1531 | error ("Symbol %s may not be buffer-local", | |
1532 | SDATA (SYMBOL_NAME (variable))); | |
1533 | else if (BUFFER_OBJFWDP (valcontents.fwd)) | |
1534 | return variable; | |
1535 | break; | |
1536 | default: abort (); | |
fd9440c5 | 1537 | } |
ce5b453a SM |
1538 | |
1539 | if (sym->constant) | |
1540 | error ("Symbol %s may not be buffer-local", SDATA (SYMBOL_NAME (variable))); | |
1541 | ||
1542 | if (!blv) | |
7921925c | 1543 | { |
ce5b453a SM |
1544 | blv = make_blv (sym, forwarded, valcontents); |
1545 | sym->redirect = SYMBOL_LOCALIZED; | |
1546 | SET_SYMBOL_BLV (sym, blv); | |
1547 | { | |
1548 | Lisp_Object symbol; | |
1549 | XSETSYMBOL (symbol, sym); /* In case `variable' is aliased. */ | |
1550 | if (let_shadows_global_binding_p (symbol)) | |
8b1e1112 SM |
1551 | message ("Making %s buffer-local while let-bound!", |
1552 | SDATA (SYMBOL_NAME (variable))); | |
ce5b453a | 1553 | } |
7921925c | 1554 | } |
ce5b453a SM |
1555 | |
1556 | blv->local_if_set = 1; | |
d9c2a0f2 | 1557 | return variable; |
7921925c JB |
1558 | } |
1559 | ||
a7ca3326 | 1560 | DEFUN ("make-local-variable", Fmake_local_variable, Smake_local_variable, |
8c1a1077 PJ |
1561 | 1, 1, "vMake Local Variable: ", |
1562 | doc: /* Make VARIABLE have a separate value in the current buffer. | |
1563 | Other buffers will continue to share a common default value. | |
1564 | \(The buffer-local value of VARIABLE starts out as the same value | |
1565 | VARIABLE previously had. If VARIABLE was void, it remains void.\) | |
a9908653 | 1566 | Return VARIABLE. |
8c1a1077 PJ |
1567 | |
1568 | If the variable is already arranged to become local when set, | |
1569 | this function causes a local value to exist for this buffer, | |
1570 | just as setting the variable would do. | |
1571 | ||
1572 | This function returns VARIABLE, and therefore | |
1573 | (set (make-local-variable 'VARIABLE) VALUE-EXP) | |
1574 | works. | |
1575 | ||
a9908653 RS |
1576 | See also `make-variable-buffer-local'. |
1577 | ||
8c1a1077 | 1578 | Do not use `make-local-variable' to make a hook variable buffer-local. |
515f3f25 | 1579 | Instead, use `add-hook' and specify t for the LOCAL argument. */) |
5842a27b | 1580 | (register Lisp_Object variable) |
7921925c | 1581 | { |
ce5b453a | 1582 | register Lisp_Object tem; |
cdef261f | 1583 | int forwarded IF_LINT (= 0); |
bfe3e0a2 | 1584 | union Lisp_Val_Fwd valcontents IF_LINT (= {LISP_INITIALLY_ZERO}); |
ad97b375 | 1585 | struct Lisp_Symbol *sym; |
ce5b453a | 1586 | struct Lisp_Buffer_Local_Value *blv = NULL; |
7921925c | 1587 | |
b7826503 | 1588 | CHECK_SYMBOL (variable); |
ce5b453a | 1589 | sym = XSYMBOL (variable); |
7921925c | 1590 | |
ce5b453a SM |
1591 | start: |
1592 | switch (sym->redirect) | |
1593 | { | |
1594 | case SYMBOL_VARALIAS: sym = indirect_variable (sym); goto start; | |
1595 | case SYMBOL_PLAINVAL: | |
1596 | forwarded = 0; valcontents.value = SYMBOL_VAL (sym); break; | |
1597 | case SYMBOL_LOCALIZED: | |
1598 | blv = SYMBOL_BLV (sym); | |
1599 | if (blv->frame_local) | |
1600 | error ("Symbol %s may not be buffer-local", | |
1601 | SDATA (SYMBOL_NAME (variable))); | |
1602 | break; | |
1603 | case SYMBOL_FORWARDED: | |
1604 | forwarded = 1; valcontents.fwd = SYMBOL_FWD (sym); | |
1605 | if (KBOARD_OBJFWDP (valcontents.fwd)) | |
1606 | error ("Symbol %s may not be buffer-local", | |
1607 | SDATA (SYMBOL_NAME (variable))); | |
1608 | break; | |
1609 | default: abort (); | |
1610 | } | |
1611 | ||
1612 | if (sym->constant) | |
8b1e1112 SM |
1613 | error ("Symbol %s may not be buffer-local", |
1614 | SDATA (SYMBOL_NAME (variable))); | |
7921925c | 1615 | |
ce5b453a SM |
1616 | if (blv ? blv->local_if_set |
1617 | : (forwarded && BUFFER_OBJFWDP (valcontents.fwd))) | |
7921925c | 1618 | { |
d9c2a0f2 | 1619 | tem = Fboundp (variable); |
7921925c JB |
1620 | /* Make sure the symbol has a local value in this particular buffer, |
1621 | by setting it to the same value it already has. */ | |
d9c2a0f2 EN |
1622 | Fset (variable, (EQ (tem, Qt) ? Fsymbol_value (variable) : Qunbound)); |
1623 | return variable; | |
7921925c | 1624 | } |
ce5b453a | 1625 | if (!blv) |
7921925c | 1626 | { |
ce5b453a SM |
1627 | blv = make_blv (sym, forwarded, valcontents); |
1628 | sym->redirect = SYMBOL_LOCALIZED; | |
1629 | SET_SYMBOL_BLV (sym, blv); | |
1630 | { | |
1631 | Lisp_Object symbol; | |
1632 | XSETSYMBOL (symbol, sym); /* In case `variable' is aliased. */ | |
1633 | if (let_shadows_global_binding_p (symbol)) | |
8b1e1112 SM |
1634 | message ("Making %s local to %s while let-bound!", |
1635 | SDATA (SYMBOL_NAME (variable)), | |
4b4deea2 | 1636 | SDATA (BVAR (current_buffer, name))); |
ce5b453a | 1637 | } |
7921925c | 1638 | } |
ce5b453a | 1639 | |
42e975f0 | 1640 | /* Make sure this buffer has its own value of symbol. */ |
ce5b453a | 1641 | XSETSYMBOL (variable, sym); /* Update in case of aliasing. */ |
4b4deea2 | 1642 | tem = Fassq (variable, BVAR (current_buffer, local_var_alist)); |
a33ef3ab | 1643 | if (NILP (tem)) |
7921925c | 1644 | { |
ce5b453a SM |
1645 | if (let_shadows_buffer_binding_p (sym)) |
1646 | message ("Making %s buffer-local while locally let-bound!", | |
1647 | SDATA (SYMBOL_NAME (variable))); | |
1648 | ||
a5d004a1 RS |
1649 | /* Swap out any local binding for some other buffer, and make |
1650 | sure the current value is permanently recorded, if it's the | |
1651 | default value. */ | |
d9c2a0f2 | 1652 | find_symbol_value (variable); |
a5d004a1 | 1653 | |
4b4deea2 | 1654 | BVAR (current_buffer, local_var_alist) |
ce5b453a | 1655 | = Fcons (Fcons (variable, XCDR (blv->defcell)), |
4b4deea2 | 1656 | BVAR (current_buffer, local_var_alist)); |
7921925c JB |
1657 | |
1658 | /* Make sure symbol does not think it is set up for this buffer; | |
42e975f0 | 1659 | force it to look once again for this buffer's value. */ |
ce5b453a SM |
1660 | if (current_buffer == XBUFFER (blv->where)) |
1661 | blv->where = Qnil; | |
1662 | /* blv->valcell = blv->defcell; | |
1663 | * SET_BLV_FOUND (blv, 0); */ | |
1664 | blv->found = 0; | |
7921925c | 1665 | } |
a5ca2b75 | 1666 | |
42e975f0 RS |
1667 | /* If the symbol forwards into a C variable, then load the binding |
1668 | for this buffer now. If C code modifies the variable before we | |
1669 | load the binding in, then that new value will clobber the default | |
1670 | binding the next time we unload it. */ | |
ce5b453a SM |
1671 | if (blv->fwd) |
1672 | swap_in_symval_forwarding (sym, blv); | |
a5ca2b75 | 1673 | |
d9c2a0f2 | 1674 | return variable; |
7921925c JB |
1675 | } |
1676 | ||
1677 | DEFUN ("kill-local-variable", Fkill_local_variable, Skill_local_variable, | |
8c1a1077 PJ |
1678 | 1, 1, "vKill Local Variable: ", |
1679 | doc: /* Make VARIABLE no longer have a separate value in the current buffer. | |
bfb96cb7 | 1680 | From now on the default value will apply in this buffer. Return VARIABLE. */) |
5842a27b | 1681 | (register Lisp_Object variable) |
7921925c | 1682 | { |
ce5b453a SM |
1683 | register Lisp_Object tem; |
1684 | struct Lisp_Buffer_Local_Value *blv; | |
ad97b375 | 1685 | struct Lisp_Symbol *sym; |
7921925c | 1686 | |
b7826503 | 1687 | CHECK_SYMBOL (variable); |
ce5b453a | 1688 | sym = XSYMBOL (variable); |
7921925c | 1689 | |
ce5b453a SM |
1690 | start: |
1691 | switch (sym->redirect) | |
7921925c | 1692 | { |
ce5b453a SM |
1693 | case SYMBOL_VARALIAS: sym = indirect_variable (sym); goto start; |
1694 | case SYMBOL_PLAINVAL: return variable; | |
1695 | case SYMBOL_FORWARDED: | |
1696 | { | |
1697 | union Lisp_Fwd *valcontents = SYMBOL_FWD (sym); | |
1698 | if (BUFFER_OBJFWDP (valcontents)) | |
1699 | { | |
1700 | int offset = XBUFFER_OBJFWD (valcontents)->offset; | |
1701 | int idx = PER_BUFFER_IDX (offset); | |
1702 | ||
1703 | if (idx > 0) | |
1704 | { | |
1705 | SET_PER_BUFFER_VALUE_P (current_buffer, idx, 0); | |
1706 | PER_BUFFER_VALUE (current_buffer, offset) | |
1707 | = PER_BUFFER_DEFAULT (offset); | |
1708 | } | |
1709 | } | |
1710 | return variable; | |
1711 | } | |
1712 | case SYMBOL_LOCALIZED: | |
1713 | blv = SYMBOL_BLV (sym); | |
1714 | if (blv->frame_local) | |
1715 | return variable; | |
1716 | break; | |
1717 | default: abort (); | |
7921925c JB |
1718 | } |
1719 | ||
42e975f0 | 1720 | /* Get rid of this buffer's alist element, if any. */ |
ad97b375 | 1721 | XSETSYMBOL (variable, sym); /* Propagate variable indirection. */ |
4b4deea2 | 1722 | tem = Fassq (variable, BVAR (current_buffer, local_var_alist)); |
a33ef3ab | 1723 | if (!NILP (tem)) |
4b4deea2 TT |
1724 | BVAR (current_buffer, local_var_alist) |
1725 | = Fdelq (tem, BVAR (current_buffer, local_var_alist)); | |
7921925c | 1726 | |
42e975f0 RS |
1727 | /* If the symbol is set up with the current buffer's binding |
1728 | loaded, recompute its value. We have to do it now, or else | |
1729 | forwarded objects won't work right. */ | |
7921925c | 1730 | { |
ce5b453a SM |
1731 | Lisp_Object buf; XSETBUFFER (buf, current_buffer); |
1732 | if (EQ (buf, blv->where)) | |
79c83e03 | 1733 | { |
ce5b453a SM |
1734 | blv->where = Qnil; |
1735 | /* blv->valcell = blv->defcell; | |
1736 | * SET_BLV_FOUND (blv, 0); */ | |
1737 | blv->found = 0; | |
978dd578 | 1738 | find_symbol_value (variable); |
79c83e03 | 1739 | } |
7921925c JB |
1740 | } |
1741 | ||
d9c2a0f2 | 1742 | return variable; |
7921925c | 1743 | } |
62476adc | 1744 | |
b0c2d1c6 RS |
1745 | /* Lisp functions for creating and removing buffer-local variables. */ |
1746 | ||
ab795c65 GM |
1747 | /* Obsolete since 22.2. NB adjust doc of modify-frame-parameters |
1748 | when/if this is removed. */ | |
1749 | ||
b0c2d1c6 | 1750 | DEFUN ("make-variable-frame-local", Fmake_variable_frame_local, Smake_variable_frame_local, |
8c1a1077 PJ |
1751 | 1, 1, "vMake Variable Frame Local: ", |
1752 | doc: /* Enable VARIABLE to have frame-local bindings. | |
4d4d36b1 RS |
1753 | This does not create any frame-local bindings for VARIABLE, |
1754 | it just makes them possible. | |
1755 | ||
1756 | A frame-local binding is actually a frame parameter value. | |
1757 | If a frame F has a value for the frame parameter named VARIABLE, | |
1758 | that also acts as a frame-local binding for VARIABLE in F-- | |
1759 | provided this function has been called to enable VARIABLE | |
1760 | to have frame-local bindings at all. | |
1761 | ||
1762 | The only way to create a frame-local binding for VARIABLE in a frame | |
1763 | is to set the VARIABLE frame parameter of that frame. See | |
1764 | `modify-frame-parameters' for how to set frame parameters. | |
1765 | ||
a02a1384 GM |
1766 | Note that since Emacs 23.1, variables cannot be both buffer-local and |
1767 | frame-local any more (buffer-local bindings used to take precedence over | |
1768 | frame-local bindings). */) | |
5842a27b | 1769 | (register Lisp_Object variable) |
b0c2d1c6 | 1770 | { |
ce5b453a SM |
1771 | int forwarded; |
1772 | union Lisp_Val_Fwd valcontents; | |
ad97b375 | 1773 | struct Lisp_Symbol *sym; |
ce5b453a | 1774 | struct Lisp_Buffer_Local_Value *blv = NULL; |
b0c2d1c6 | 1775 | |
b7826503 | 1776 | CHECK_SYMBOL (variable); |
ce5b453a | 1777 | sym = XSYMBOL (variable); |
b0c2d1c6 | 1778 | |
ce5b453a SM |
1779 | start: |
1780 | switch (sym->redirect) | |
42e975f0 | 1781 | { |
ce5b453a SM |
1782 | case SYMBOL_VARALIAS: sym = indirect_variable (sym); goto start; |
1783 | case SYMBOL_PLAINVAL: | |
1784 | forwarded = 0; valcontents.value = SYMBOL_VAL (sym); | |
1785 | if (EQ (valcontents.value, Qunbound)) | |
1786 | valcontents.value = Qnil; | |
1787 | break; | |
1788 | case SYMBOL_LOCALIZED: | |
1789 | if (SYMBOL_BLV (sym)->frame_local) | |
1790 | return variable; | |
1791 | else | |
1792 | error ("Symbol %s may not be frame-local", | |
1793 | SDATA (SYMBOL_NAME (variable))); | |
1794 | case SYMBOL_FORWARDED: | |
1795 | forwarded = 1; valcontents.fwd = SYMBOL_FWD (sym); | |
1796 | if (KBOARD_OBJFWDP (valcontents.fwd) || BUFFER_OBJFWDP (valcontents.fwd)) | |
1797 | error ("Symbol %s may not be frame-local", | |
1798 | SDATA (SYMBOL_NAME (variable))); | |
1799 | break; | |
1800 | default: abort (); | |
42e975f0 | 1801 | } |
b0c2d1c6 | 1802 | |
ce5b453a SM |
1803 | if (sym->constant) |
1804 | error ("Symbol %s may not be frame-local", SDATA (SYMBOL_NAME (variable))); | |
1805 | ||
1806 | blv = make_blv (sym, forwarded, valcontents); | |
1807 | blv->frame_local = 1; | |
1808 | sym->redirect = SYMBOL_LOCALIZED; | |
1809 | SET_SYMBOL_BLV (sym, blv); | |
8b1e1112 SM |
1810 | { |
1811 | Lisp_Object symbol; | |
1812 | XSETSYMBOL (symbol, sym); /* In case `variable' is aliased. */ | |
1813 | if (let_shadows_global_binding_p (symbol)) | |
1814 | message ("Making %s frame-local while let-bound!", | |
1815 | SDATA (SYMBOL_NAME (variable))); | |
1816 | } | |
b0c2d1c6 RS |
1817 | return variable; |
1818 | } | |
1819 | ||
a7ca3326 | 1820 | DEFUN ("local-variable-p", Flocal_variable_p, Slocal_variable_p, |
8c1a1077 PJ |
1821 | 1, 2, 0, |
1822 | doc: /* Non-nil if VARIABLE has a local binding in buffer BUFFER. | |
1823 | BUFFER defaults to the current buffer. */) | |
5842a27b | 1824 | (register Lisp_Object variable, Lisp_Object buffer) |
62476adc | 1825 | { |
c48ead86 | 1826 | register struct buffer *buf; |
ad97b375 | 1827 | struct Lisp_Symbol *sym; |
c48ead86 KH |
1828 | |
1829 | if (NILP (buffer)) | |
1830 | buf = current_buffer; | |
1831 | else | |
1832 | { | |
b7826503 | 1833 | CHECK_BUFFER (buffer); |
c48ead86 KH |
1834 | buf = XBUFFER (buffer); |
1835 | } | |
62476adc | 1836 | |
b7826503 | 1837 | CHECK_SYMBOL (variable); |
ce5b453a | 1838 | sym = XSYMBOL (variable); |
be95bee9 | 1839 | |
ce5b453a SM |
1840 | start: |
1841 | switch (sym->redirect) | |
c48ead86 | 1842 | { |
ce5b453a SM |
1843 | case SYMBOL_VARALIAS: sym = indirect_variable (sym); goto start; |
1844 | case SYMBOL_PLAINVAL: return Qnil; | |
1845 | case SYMBOL_LOCALIZED: | |
1846 | { | |
1847 | Lisp_Object tail, elt, tmp; | |
1848 | struct Lisp_Buffer_Local_Value *blv = SYMBOL_BLV (sym); | |
1849 | XSETBUFFER (tmp, buf); | |
8d1d9587 | 1850 | XSETSYMBOL (variable, sym); /* Update in case of aliasing. */ |
aa3830c4 | 1851 | |
4b4deea2 | 1852 | for (tail = BVAR (buf, local_var_alist); CONSP (tail); tail = XCDR (tail)) |
ce5b453a SM |
1853 | { |
1854 | elt = XCAR (tail); | |
1855 | if (EQ (variable, XCAR (elt))) | |
1856 | { | |
1857 | eassert (!blv->frame_local); | |
1858 | eassert (BLV_FOUND (blv) || !EQ (blv->where, tmp)); | |
1859 | return Qt; | |
1860 | } | |
1861 | } | |
1862 | eassert (!BLV_FOUND (blv) || !EQ (blv->where, tmp)); | |
1863 | return Qnil; | |
1864 | } | |
1865 | case SYMBOL_FORWARDED: | |
1866 | { | |
1867 | union Lisp_Fwd *valcontents = SYMBOL_FWD (sym); | |
1868 | if (BUFFER_OBJFWDP (valcontents)) | |
1869 | { | |
1870 | int offset = XBUFFER_OBJFWD (valcontents)->offset; | |
1871 | int idx = PER_BUFFER_IDX (offset); | |
1872 | if (idx == -1 || PER_BUFFER_VALUE_P (buf, idx)) | |
1873 | return Qt; | |
1874 | } | |
1875 | return Qnil; | |
1876 | } | |
1877 | default: abort (); | |
c48ead86 | 1878 | } |
62476adc | 1879 | } |
f4f04cee RS |
1880 | |
1881 | DEFUN ("local-variable-if-set-p", Flocal_variable_if_set_p, Slocal_variable_if_set_p, | |
8c1a1077 | 1882 | 1, 2, 0, |
1dc5ba01 LT |
1883 | doc: /* Non-nil if VARIABLE will be local in buffer BUFFER when set there. |
1884 | More precisely, this means that setting the variable \(with `set' or`setq'), | |
1885 | while it does not have a `let'-style binding that was made in BUFFER, | |
1886 | will produce a buffer local binding. See Info node | |
1887 | `(elisp)Creating Buffer-Local'. | |
8c1a1077 | 1888 | BUFFER defaults to the current buffer. */) |
5842a27b | 1889 | (register Lisp_Object variable, Lisp_Object buffer) |
f4f04cee | 1890 | { |
ad97b375 | 1891 | struct Lisp_Symbol *sym; |
f4f04cee | 1892 | |
b7826503 | 1893 | CHECK_SYMBOL (variable); |
ce5b453a | 1894 | sym = XSYMBOL (variable); |
f4f04cee | 1895 | |
ce5b453a SM |
1896 | start: |
1897 | switch (sym->redirect) | |
f4f04cee | 1898 | { |
ce5b453a SM |
1899 | case SYMBOL_VARALIAS: sym = indirect_variable (sym); goto start; |
1900 | case SYMBOL_PLAINVAL: return Qnil; | |
1901 | case SYMBOL_LOCALIZED: | |
1902 | { | |
1903 | struct Lisp_Buffer_Local_Value *blv = SYMBOL_BLV (sym); | |
1904 | if (blv->local_if_set) | |
1905 | return Qt; | |
1906 | XSETSYMBOL (variable, sym); /* Update in case of aliasing. */ | |
1907 | return Flocal_variable_p (variable, buffer); | |
1908 | } | |
1909 | case SYMBOL_FORWARDED: | |
1910 | /* All BUFFER_OBJFWD slots become local if they are set. */ | |
1911 | return (BUFFER_OBJFWDP (SYMBOL_FWD (sym)) ? Qt : Qnil); | |
1912 | default: abort (); | |
f4f04cee | 1913 | } |
f4f04cee | 1914 | } |
6b61353c KH |
1915 | |
1916 | DEFUN ("variable-binding-locus", Fvariable_binding_locus, Svariable_binding_locus, | |
1917 | 1, 1, 0, | |
1918 | doc: /* Return a value indicating where VARIABLE's current binding comes from. | |
1919 | If the current binding is buffer-local, the value is the current buffer. | |
1920 | If the current binding is frame-local, the value is the selected frame. | |
1921 | If the current binding is global (the default), the value is nil. */) | |
5842a27b | 1922 | (register Lisp_Object variable) |
6b61353c | 1923 | { |
ad97b375 | 1924 | struct Lisp_Symbol *sym; |
6b61353c KH |
1925 | |
1926 | CHECK_SYMBOL (variable); | |
ce5b453a | 1927 | sym = XSYMBOL (variable); |
6b61353c KH |
1928 | |
1929 | /* Make sure the current binding is actually swapped in. */ | |
1930 | find_symbol_value (variable); | |
1931 | ||
ce5b453a SM |
1932 | start: |
1933 | switch (sym->redirect) | |
6b61353c | 1934 | { |
ce5b453a SM |
1935 | case SYMBOL_VARALIAS: sym = indirect_variable (sym); goto start; |
1936 | case SYMBOL_PLAINVAL: return Qnil; | |
1937 | case SYMBOL_FORWARDED: | |
1938 | { | |
1939 | union Lisp_Fwd *valcontents = SYMBOL_FWD (sym); | |
1940 | if (KBOARD_OBJFWDP (valcontents)) | |
1941 | return Fframe_terminal (Fselected_frame ()); | |
1942 | else if (!BUFFER_OBJFWDP (valcontents)) | |
1943 | return Qnil; | |
1944 | } | |
1945 | /* FALLTHROUGH */ | |
1946 | case SYMBOL_LOCALIZED: | |
6b61353c KH |
1947 | /* For a local variable, record both the symbol and which |
1948 | buffer's or frame's value we are saving. */ | |
1949 | if (!NILP (Flocal_variable_p (variable, Qnil))) | |
1950 | return Fcurrent_buffer (); | |
ce5b453a SM |
1951 | else if (sym->redirect == SYMBOL_LOCALIZED |
1952 | && BLV_FOUND (SYMBOL_BLV (sym))) | |
1953 | return SYMBOL_BLV (sym)->where; | |
1954 | else | |
1955 | return Qnil; | |
1956 | default: abort (); | |
6b61353c | 1957 | } |
6b61353c | 1958 | } |
2a42d440 | 1959 | |
c40bb1ba KL |
1960 | /* This code is disabled now that we use the selected frame to return |
1961 | keyboard-local-values. */ | |
1962 | #if 0 | |
f57e2426 | 1963 | extern struct terminal *get_terminal (Lisp_Object display, int); |
2a42d440 | 1964 | |
a7ca3326 | 1965 | DEFUN ("terminal-local-value", Fterminal_local_value, |
16a97296 | 1966 | Sterminal_local_value, 2, 2, 0, |
6ed8eeff | 1967 | doc: /* Return the terminal-local value of SYMBOL on TERMINAL. |
2a42d440 KL |
1968 | If SYMBOL is not a terminal-local variable, then return its normal |
1969 | value, like `symbol-value'. | |
1970 | ||
708e05dc | 1971 | TERMINAL may be a terminal object, a frame, or nil (meaning the |
6ed8eeff | 1972 | selected frame's terminal device). */) |
5842a27b | 1973 | (Lisp_Object symbol, Lisp_Object terminal) |
2a42d440 KL |
1974 | { |
1975 | Lisp_Object result; | |
6ed8eeff KL |
1976 | struct terminal *t = get_terminal (terminal, 1); |
1977 | push_kboard (t->kboard); | |
2a42d440 | 1978 | result = Fsymbol_value (symbol); |
256c9c3a | 1979 | pop_kboard (); |
2a42d440 KL |
1980 | return result; |
1981 | } | |
1982 | ||
a7ca3326 | 1983 | DEFUN ("set-terminal-local-value", Fset_terminal_local_value, |
16a97296 | 1984 | Sset_terminal_local_value, 3, 3, 0, |
6ed8eeff | 1985 | doc: /* Set the terminal-local binding of SYMBOL on TERMINAL to VALUE. |
2a42d440 | 1986 | If VARIABLE is not a terminal-local variable, then set its normal |
7e59217d KL |
1987 | binding, like `set'. |
1988 | ||
708e05dc | 1989 | TERMINAL may be a terminal object, a frame, or nil (meaning the |
6ed8eeff | 1990 | selected frame's terminal device). */) |
5842a27b | 1991 | (Lisp_Object symbol, Lisp_Object terminal, Lisp_Object value) |
2a42d440 KL |
1992 | { |
1993 | Lisp_Object result; | |
6ed8eeff | 1994 | struct terminal *t = get_terminal (terminal, 1); |
256c9c3a | 1995 | push_kboard (d->kboard); |
2a42d440 | 1996 | result = Fset (symbol, value); |
256c9c3a | 1997 | pop_kboard (); |
2a42d440 KL |
1998 | return result; |
1999 | } | |
c40bb1ba | 2000 | #endif |
7921925c | 2001 | \f |
ffd56f97 JB |
2002 | /* Find the function at the end of a chain of symbol function indirections. */ |
2003 | ||
2004 | /* If OBJECT is a symbol, find the end of its function chain and | |
2005 | return the value found there. If OBJECT is not a symbol, just | |
2006 | return it. If there is a cycle in the function chain, signal a | |
2007 | cyclic-function-indirection error. | |
2008 | ||
2009 | This is like Findirect_function, except that it doesn't signal an | |
2010 | error if the chain ends up unbound. */ | |
2011 | Lisp_Object | |
971de7fb | 2012 | indirect_function (register Lisp_Object object) |
ffd56f97 | 2013 | { |
eb8c3be9 | 2014 | Lisp_Object tortoise, hare; |
ffd56f97 | 2015 | |
eb8c3be9 | 2016 | hare = tortoise = object; |
ffd56f97 JB |
2017 | |
2018 | for (;;) | |
2019 | { | |
e9ebc175 | 2020 | if (!SYMBOLP (hare) || EQ (hare, Qunbound)) |
ffd56f97 JB |
2021 | break; |
2022 | hare = XSYMBOL (hare)->function; | |
e9ebc175 | 2023 | if (!SYMBOLP (hare) || EQ (hare, Qunbound)) |
ffd56f97 JB |
2024 | break; |
2025 | hare = XSYMBOL (hare)->function; | |
2026 | ||
eb8c3be9 | 2027 | tortoise = XSYMBOL (tortoise)->function; |
ffd56f97 | 2028 | |
eb8c3be9 | 2029 | if (EQ (hare, tortoise)) |
740ef0b5 | 2030 | xsignal1 (Qcyclic_function_indirection, object); |
ffd56f97 JB |
2031 | } |
2032 | ||
2033 | return hare; | |
2034 | } | |
2035 | ||
a7ca3326 | 2036 | DEFUN ("indirect-function", Findirect_function, Sindirect_function, 1, 2, 0, |
8c1a1077 | 2037 | doc: /* Return the function at the end of OBJECT's function chain. |
0ddb0ae8 TTN |
2038 | If OBJECT is not a symbol, just return it. Otherwise, follow all |
2039 | function indirections to find the final function binding and return it. | |
2040 | If the final symbol in the chain is unbound, signal a void-function error. | |
8350f087 | 2041 | Optional arg NOERROR non-nil means to return nil instead of signaling. |
8c1a1077 PJ |
2042 | Signal a cyclic-function-indirection error if there is a loop in the |
2043 | function chain of symbols. */) | |
5842a27b | 2044 | (register Lisp_Object object, Lisp_Object noerror) |
ffd56f97 JB |
2045 | { |
2046 | Lisp_Object result; | |
2047 | ||
64de53d8 KS |
2048 | /* Optimize for no indirection. */ |
2049 | result = object; | |
2050 | if (SYMBOLP (result) && !EQ (result, Qunbound) | |
2051 | && (result = XSYMBOL (result)->function, SYMBOLP (result))) | |
2052 | result = indirect_function (result); | |
2053 | if (!EQ (result, Qunbound)) | |
2054 | return result; | |
ffd56f97 | 2055 | |
64de53d8 | 2056 | if (NILP (noerror)) |
740ef0b5 | 2057 | xsignal1 (Qvoid_function, object); |
ffd56f97 | 2058 | |
64de53d8 | 2059 | return Qnil; |
ffd56f97 JB |
2060 | } |
2061 | \f | |
7921925c JB |
2062 | /* Extract and set vector and string elements */ |
2063 | ||
a7ca3326 | 2064 | DEFUN ("aref", Faref, Saref, 2, 2, 0, |
8c1a1077 PJ |
2065 | doc: /* Return the element of ARRAY at index IDX. |
2066 | ARRAY may be a vector, a string, a char-table, a bool-vector, | |
2067 | or a byte-code object. IDX starts at 0. */) | |
5842a27b | 2068 | (register Lisp_Object array, Lisp_Object idx) |
7921925c | 2069 | { |
ace1712c | 2070 | register EMACS_INT idxval; |
7921925c | 2071 | |
b7826503 | 2072 | CHECK_NUMBER (idx); |
7921925c | 2073 | idxval = XINT (idx); |
e9ebc175 | 2074 | if (STRINGP (array)) |
7921925c | 2075 | { |
ace1712c | 2076 | int c; |
d311d28c | 2077 | ptrdiff_t idxval_byte; |
25638b07 | 2078 | |
d5db4077 | 2079 | if (idxval < 0 || idxval >= SCHARS (array)) |
c24e4efe | 2080 | args_out_of_range (array, idx); |
25638b07 | 2081 | if (! STRING_MULTIBYTE (array)) |
d5db4077 | 2082 | return make_number ((unsigned char) SREF (array, idxval)); |
25638b07 RS |
2083 | idxval_byte = string_char_to_byte (array, idxval); |
2084 | ||
62a6e103 | 2085 | c = STRING_CHAR (SDATA (array) + idxval_byte); |
25638b07 | 2086 | return make_number (c); |
7921925c | 2087 | } |
4d276982 RS |
2088 | else if (BOOL_VECTOR_P (array)) |
2089 | { | |
2090 | int val; | |
4d276982 RS |
2091 | |
2092 | if (idxval < 0 || idxval >= XBOOL_VECTOR (array)->size) | |
2093 | args_out_of_range (array, idx); | |
2094 | ||
b9ed2177 AS |
2095 | val = (unsigned char) XBOOL_VECTOR (array)->data[idxval / BOOL_VECTOR_BITS_PER_CHAR]; |
2096 | return (val & (1 << (idxval % BOOL_VECTOR_BITS_PER_CHAR)) ? Qt : Qnil); | |
4d276982 RS |
2097 | } |
2098 | else if (CHAR_TABLE_P (array)) | |
2099 | { | |
e6e1f521 KH |
2100 | CHECK_CHARACTER (idx); |
2101 | return CHAR_TABLE_REF (array, idxval); | |
4d276982 | 2102 | } |
7921925c | 2103 | else |
c24e4efe | 2104 | { |
90d8445b | 2105 | ptrdiff_t size = 0; |
7f358972 | 2106 | if (VECTORP (array)) |
77b37c05 | 2107 | size = ASIZE (array); |
876c194c | 2108 | else if (COMPILEDP (array)) |
77b37c05 | 2109 | size = ASIZE (array) & PSEUDOVECTOR_SIZE_MASK; |
7f358972 RS |
2110 | else |
2111 | wrong_type_argument (Qarrayp, array); | |
2112 | ||
2113 | if (idxval < 0 || idxval >= size) | |
c24e4efe | 2114 | args_out_of_range (array, idx); |
b9598260 | 2115 | return AREF (array, idxval); |
c24e4efe | 2116 | } |
7921925c JB |
2117 | } |
2118 | ||
a7ca3326 | 2119 | DEFUN ("aset", Faset, Saset, 3, 3, 0, |
8c1a1077 | 2120 | doc: /* Store into the element of ARRAY at index IDX the value NEWELT. |
bfb96cb7 FP |
2121 | Return NEWELT. ARRAY may be a vector, a string, a char-table or a |
2122 | bool-vector. IDX starts at 0. */) | |
5842a27b | 2123 | (register Lisp_Object array, Lisp_Object idx, Lisp_Object newelt) |
7921925c | 2124 | { |
ace1712c | 2125 | register EMACS_INT idxval; |
7921925c | 2126 | |
b7826503 | 2127 | CHECK_NUMBER (idx); |
7921925c | 2128 | idxval = XINT (idx); |
0c64a8cd | 2129 | CHECK_ARRAY (array, Qarrayp); |
7921925c JB |
2130 | CHECK_IMPURE (array); |
2131 | ||
e9ebc175 | 2132 | if (VECTORP (array)) |
c24e4efe | 2133 | { |
77b37c05 | 2134 | if (idxval < 0 || idxval >= ASIZE (array)) |
c24e4efe | 2135 | args_out_of_range (array, idx); |
28be1ada | 2136 | ASET (array, idxval, newelt); |
c24e4efe | 2137 | } |
4d276982 RS |
2138 | else if (BOOL_VECTOR_P (array)) |
2139 | { | |
2140 | int val; | |
4d276982 RS |
2141 | |
2142 | if (idxval < 0 || idxval >= XBOOL_VECTOR (array)->size) | |
2143 | args_out_of_range (array, idx); | |
2144 | ||
b9ed2177 | 2145 | val = (unsigned char) XBOOL_VECTOR (array)->data[idxval / BOOL_VECTOR_BITS_PER_CHAR]; |
4d276982 RS |
2146 | |
2147 | if (! NILP (newelt)) | |
b9ed2177 | 2148 | val |= 1 << (idxval % BOOL_VECTOR_BITS_PER_CHAR); |
4d276982 | 2149 | else |
b9ed2177 AS |
2150 | val &= ~(1 << (idxval % BOOL_VECTOR_BITS_PER_CHAR)); |
2151 | XBOOL_VECTOR (array)->data[idxval / BOOL_VECTOR_BITS_PER_CHAR] = val; | |
4d276982 RS |
2152 | } |
2153 | else if (CHAR_TABLE_P (array)) | |
2154 | { | |
e6e1f521 KH |
2155 | CHECK_CHARACTER (idx); |
2156 | CHAR_TABLE_SET (array, idxval, newelt); | |
4d276982 | 2157 | } |
0fed43f3 | 2158 | else |
25638b07 | 2159 | { |
13bdea59 | 2160 | int c; |
25638b07 | 2161 | |
d5db4077 | 2162 | if (idxval < 0 || idxval >= SCHARS (array)) |
25638b07 | 2163 | args_out_of_range (array, idx); |
d9130605 | 2164 | CHECK_CHARACTER (newelt); |
13bdea59 | 2165 | c = XFASTINT (newelt); |
25638b07 | 2166 | |
0fed43f3 | 2167 | if (STRING_MULTIBYTE (array)) |
3c9de1af | 2168 | { |
d311d28c PE |
2169 | ptrdiff_t idxval_byte, nbytes; |
2170 | int prev_bytes, new_bytes; | |
0fed43f3 PE |
2171 | unsigned char workbuf[MAX_MULTIBYTE_LENGTH], *p0 = workbuf, *p1; |
2172 | ||
2173 | nbytes = SBYTES (array); | |
2174 | idxval_byte = string_char_to_byte (array, idxval); | |
d5db4077 | 2175 | p1 = SDATA (array) + idxval_byte; |
0fed43f3 PE |
2176 | prev_bytes = BYTES_BY_CHAR_HEAD (*p1); |
2177 | new_bytes = CHAR_STRING (c, p0); | |
2178 | if (prev_bytes != new_bytes) | |
2179 | { | |
2180 | /* We must relocate the string data. */ | |
d311d28c | 2181 | ptrdiff_t nchars = SCHARS (array); |
0fed43f3 PE |
2182 | unsigned char *str; |
2183 | USE_SAFE_ALLOCA; | |
2184 | ||
2185 | SAFE_ALLOCA (str, unsigned char *, nbytes); | |
2186 | memcpy (str, SDATA (array), nbytes); | |
2187 | allocate_string_data (XSTRING (array), nchars, | |
2188 | nbytes + new_bytes - prev_bytes); | |
2189 | memcpy (SDATA (array), str, idxval_byte); | |
2190 | p1 = SDATA (array) + idxval_byte; | |
2191 | memcpy (p1 + new_bytes, str + idxval_byte + prev_bytes, | |
2192 | nbytes - (idxval_byte + prev_bytes)); | |
2193 | SAFE_FREE (); | |
2194 | clear_string_char_byte_cache (); | |
2195 | } | |
2196 | while (new_bytes--) | |
2197 | *p1++ = *p0++; | |
3c9de1af | 2198 | } |
0fed43f3 | 2199 | else |
5dff5999 | 2200 | { |
0fed43f3 PE |
2201 | if (! SINGLE_BYTE_CHAR_P (c)) |
2202 | { | |
2203 | int i; | |
2204 | ||
2205 | for (i = SBYTES (array) - 1; i >= 0; i--) | |
2206 | if (SREF (array, i) >= 0x80) | |
2207 | args_out_of_range (array, newelt); | |
2208 | /* ARRAY is an ASCII string. Convert it to a multibyte | |
2209 | string, and try `aset' again. */ | |
2210 | STRING_SET_MULTIBYTE (array); | |
2211 | return Faset (array, idx, newelt); | |
2212 | } | |
2213 | SSET (array, idxval, c); | |
5dff5999 | 2214 | } |
7921925c JB |
2215 | } |
2216 | ||
2217 | return newelt; | |
2218 | } | |
7921925c JB |
2219 | \f |
2220 | /* Arithmetic functions */ | |
2221 | ||
2222 | enum comparison { equal, notequal, less, grtr, less_or_equal, grtr_or_equal }; | |
2223 | ||
112396d6 | 2224 | static Lisp_Object |
971de7fb | 2225 | arithcompare (Lisp_Object num1, Lisp_Object num2, enum comparison comparison) |
7921925c | 2226 | { |
6bbd7a29 | 2227 | double f1 = 0, f2 = 0; |
7921925c JB |
2228 | int floatp = 0; |
2229 | ||
b7826503 PJ |
2230 | CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (num1); |
2231 | CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (num2); | |
7921925c | 2232 | |
e9ebc175 | 2233 | if (FLOATP (num1) || FLOATP (num2)) |
7921925c JB |
2234 | { |
2235 | floatp = 1; | |
7539e11f KR |
2236 | f1 = (FLOATP (num1)) ? XFLOAT_DATA (num1) : XINT (num1); |
2237 | f2 = (FLOATP (num2)) ? XFLOAT_DATA (num2) : XINT (num2); | |
7921925c | 2238 | } |
7921925c JB |
2239 | |
2240 | switch (comparison) | |
2241 | { | |
2242 | case equal: | |
2243 | if (floatp ? f1 == f2 : XINT (num1) == XINT (num2)) | |
2244 | return Qt; | |
2245 | return Qnil; | |
2246 | ||
2247 | case notequal: | |
2248 | if (floatp ? f1 != f2 : XINT (num1) != XINT (num2)) | |
2249 | return Qt; | |
2250 | return Qnil; | |
2251 | ||
2252 | case less: | |
2253 | if (floatp ? f1 < f2 : XINT (num1) < XINT (num2)) | |
2254 | return Qt; | |
2255 | return Qnil; | |
2256 | ||
2257 | case less_or_equal: | |
2258 | if (floatp ? f1 <= f2 : XINT (num1) <= XINT (num2)) | |
2259 | return Qt; | |
2260 | return Qnil; | |
2261 | ||
2262 | case grtr: | |
2263 | if (floatp ? f1 > f2 : XINT (num1) > XINT (num2)) | |
2264 | return Qt; | |
2265 | return Qnil; | |
2266 | ||
2267 | case grtr_or_equal: | |
2268 | if (floatp ? f1 >= f2 : XINT (num1) >= XINT (num2)) | |
2269 | return Qt; | |
2270 | return Qnil; | |
25e40a4b JB |
2271 | |
2272 | default: | |
2273 | abort (); | |
7921925c JB |
2274 | } |
2275 | } | |
2276 | ||
2277 | DEFUN ("=", Feqlsign, Seqlsign, 2, 2, 0, | |
8c1a1077 | 2278 | doc: /* Return t if two args, both numbers or markers, are equal. */) |
5842a27b | 2279 | (register Lisp_Object num1, Lisp_Object num2) |
7921925c JB |
2280 | { |
2281 | return arithcompare (num1, num2, equal); | |
2282 | } | |
2283 | ||
a7ca3326 | 2284 | DEFUN ("<", Flss, Slss, 2, 2, 0, |
8c1a1077 | 2285 | doc: /* Return t if first arg is less than second arg. Both must be numbers or markers. */) |
5842a27b | 2286 | (register Lisp_Object num1, Lisp_Object num2) |
7921925c JB |
2287 | { |
2288 | return arithcompare (num1, num2, less); | |
2289 | } | |
2290 | ||
a7ca3326 | 2291 | DEFUN (">", Fgtr, Sgtr, 2, 2, 0, |
8c1a1077 | 2292 | doc: /* Return t if first arg is greater than second arg. Both must be numbers or markers. */) |
5842a27b | 2293 | (register Lisp_Object num1, Lisp_Object num2) |
7921925c JB |
2294 | { |
2295 | return arithcompare (num1, num2, grtr); | |
2296 | } | |
2297 | ||
a7ca3326 | 2298 | DEFUN ("<=", Fleq, Sleq, 2, 2, 0, |
8c1a1077 PJ |
2299 | doc: /* Return t if first arg is less than or equal to second arg. |
2300 | Both must be numbers or markers. */) | |
5842a27b | 2301 | (register Lisp_Object num1, Lisp_Object num2) |
7921925c JB |
2302 | { |
2303 | return arithcompare (num1, num2, less_or_equal); | |
2304 | } | |
2305 | ||
a7ca3326 | 2306 | DEFUN (">=", Fgeq, Sgeq, 2, 2, 0, |
8c1a1077 PJ |
2307 | doc: /* Return t if first arg is greater than or equal to second arg. |
2308 | Both must be numbers or markers. */) | |
5842a27b | 2309 | (register Lisp_Object num1, Lisp_Object num2) |
7921925c JB |
2310 | { |
2311 | return arithcompare (num1, num2, grtr_or_equal); | |
2312 | } | |
2313 | ||
2314 | DEFUN ("/=", Fneq, Sneq, 2, 2, 0, | |
8c1a1077 | 2315 | doc: /* Return t if first arg is not equal to second arg. Both must be numbers or markers. */) |
5842a27b | 2316 | (register Lisp_Object num1, Lisp_Object num2) |
7921925c JB |
2317 | { |
2318 | return arithcompare (num1, num2, notequal); | |
2319 | } | |
2320 | ||
a7ca3326 | 2321 | DEFUN ("zerop", Fzerop, Szerop, 1, 1, 0, |
8c1a1077 | 2322 | doc: /* Return t if NUMBER is zero. */) |
5842a27b | 2323 | (register Lisp_Object number) |
7921925c | 2324 | { |
b7826503 | 2325 | CHECK_NUMBER_OR_FLOAT (number); |
7921925c | 2326 | |
d9c2a0f2 | 2327 | if (FLOATP (number)) |
7921925c | 2328 | { |
7539e11f | 2329 | if (XFLOAT_DATA (number) == 0.0) |
7921925c JB |
2330 | return Qt; |
2331 | return Qnil; | |
2332 | } | |
7921925c | 2333 | |
d9c2a0f2 | 2334 | if (!XINT (number)) |
7921925c JB |
2335 | return Qt; |
2336 | return Qnil; | |
2337 | } | |
2338 | \f | |
be44ca6c PE |
2339 | /* Convert the cons-of-integers, integer, or float value C to an |
2340 | unsigned value with maximum value MAX. Signal an error if C does not | |
2341 | have a valid format or is out of range. */ | |
2342 | uintmax_t | |
2343 | cons_to_unsigned (Lisp_Object c, uintmax_t max) | |
2344 | { | |
2345 | int valid = 0; | |
2346 | uintmax_t val IF_LINT (= 0); | |
2347 | if (INTEGERP (c)) | |
2348 | { | |
2349 | valid = 0 <= XINT (c); | |
2350 | val = XINT (c); | |
2351 | } | |
2352 | else if (FLOATP (c)) | |
2353 | { | |
2354 | double d = XFLOAT_DATA (c); | |
2355 | if (0 <= d | |
2356 | && d < (max == UINTMAX_MAX ? (double) UINTMAX_MAX + 1 : max + 1)) | |
2357 | { | |
2358 | val = d; | |
2359 | valid = 1; | |
2360 | } | |
2361 | } | |
2362 | else if (CONSP (c) && NATNUMP (XCAR (c))) | |
2363 | { | |
2364 | uintmax_t top = XFASTINT (XCAR (c)); | |
2365 | Lisp_Object rest = XCDR (c); | |
2366 | if (top <= UINTMAX_MAX >> 24 >> 16 | |
2367 | && CONSP (rest) | |
2368 | && NATNUMP (XCAR (rest)) && XFASTINT (XCAR (rest)) < 1 << 24 | |
2369 | && NATNUMP (XCDR (rest)) && XFASTINT (XCDR (rest)) < 1 << 16) | |
2370 | { | |
2371 | uintmax_t mid = XFASTINT (XCAR (rest)); | |
2372 | val = top << 24 << 16 | mid << 16 | XFASTINT (XCDR (rest)); | |
2373 | valid = 1; | |
2374 | } | |
2375 | else if (top <= UINTMAX_MAX >> 16) | |
2376 | { | |
2377 | if (CONSP (rest)) | |
2378 | rest = XCAR (rest); | |
2379 | if (NATNUMP (rest) && XFASTINT (rest) < 1 << 16) | |
2380 | { | |
2381 | val = top << 16 | XFASTINT (rest); | |
2382 | valid = 1; | |
2383 | } | |
2384 | } | |
2385 | } | |
51cf3e31 | 2386 | |
be44ca6c PE |
2387 | if (! (valid && val <= max)) |
2388 | error ("Not an in-range integer, float, or cons of integers"); | |
2389 | return val; | |
51cf3e31 JB |
2390 | } |
2391 | ||
be44ca6c PE |
2392 | /* Convert the cons-of-integers, integer, or float value C to a signed |
2393 | value with extrema MIN and MAX. Signal an error if C does not have | |
2394 | a valid format or is out of range. */ | |
2395 | intmax_t | |
2396 | cons_to_signed (Lisp_Object c, intmax_t min, intmax_t max) | |
51cf3e31 | 2397 | { |
be44ca6c PE |
2398 | int valid = 0; |
2399 | intmax_t val IF_LINT (= 0); | |
51cf3e31 | 2400 | if (INTEGERP (c)) |
be44ca6c PE |
2401 | { |
2402 | val = XINT (c); | |
2403 | valid = 1; | |
2404 | } | |
2405 | else if (FLOATP (c)) | |
2406 | { | |
2407 | double d = XFLOAT_DATA (c); | |
2408 | if (min <= d | |
2409 | && d < (max == INTMAX_MAX ? (double) INTMAX_MAX + 1 : max + 1)) | |
2410 | { | |
2411 | val = d; | |
2412 | valid = 1; | |
2413 | } | |
2414 | } | |
2415 | else if (CONSP (c) && INTEGERP (XCAR (c))) | |
2416 | { | |
2417 | intmax_t top = XINT (XCAR (c)); | |
2418 | Lisp_Object rest = XCDR (c); | |
2419 | if (INTMAX_MIN >> 24 >> 16 <= top && top <= INTMAX_MAX >> 24 >> 16 | |
2420 | && CONSP (rest) | |
2421 | && NATNUMP (XCAR (rest)) && XFASTINT (XCAR (rest)) < 1 << 24 | |
2422 | && NATNUMP (XCDR (rest)) && XFASTINT (XCDR (rest)) < 1 << 16) | |
2423 | { | |
2424 | intmax_t mid = XFASTINT (XCAR (rest)); | |
2425 | val = top << 24 << 16 | mid << 16 | XFASTINT (XCDR (rest)); | |
2426 | valid = 1; | |
2427 | } | |
2428 | else if (INTMAX_MIN >> 16 <= top && top <= INTMAX_MAX >> 16) | |
2429 | { | |
2430 | if (CONSP (rest)) | |
2431 | rest = XCAR (rest); | |
2432 | if (NATNUMP (rest) && XFASTINT (rest) < 1 << 16) | |
2433 | { | |
2434 | val = top << 16 | XFASTINT (rest); | |
2435 | valid = 1; | |
2436 | } | |
2437 | } | |
2438 | } | |
2439 | ||
2440 | if (! (valid && min <= val && val <= max)) | |
2441 | error ("Not an in-range integer, float, or cons of integers"); | |
2442 | return val; | |
51cf3e31 JB |
2443 | } |
2444 | \f | |
a7ca3326 | 2445 | DEFUN ("number-to-string", Fnumber_to_string, Snumber_to_string, 1, 1, 0, |
bfb96cb7 | 2446 | doc: /* Return the decimal representation of NUMBER as a string. |
8c1a1077 PJ |
2447 | Uses a minus sign if negative. |
2448 | NUMBER may be an integer or a floating point number. */) | |
5842a27b | 2449 | (Lisp_Object number) |
7921925c | 2450 | { |
99027bdd PE |
2451 | char buffer[max (FLOAT_TO_STRING_BUFSIZE, INT_BUFSIZE_BOUND (EMACS_INT))]; |
2452 | int len; | |
7921925c | 2453 | |
b7826503 | 2454 | CHECK_NUMBER_OR_FLOAT (number); |
7921925c | 2455 | |
d9c2a0f2 | 2456 | if (FLOATP (number)) |
99027bdd PE |
2457 | len = float_to_string (buffer, XFLOAT_DATA (number)); |
2458 | else | |
2459 | len = sprintf (buffer, "%"pI"d", XINT (number)); | |
7921925c | 2460 | |
99027bdd | 2461 | return make_unibyte_string (buffer, len); |
7921925c JB |
2462 | } |
2463 | ||
a7ca3326 | 2464 | DEFUN ("string-to-number", Fstring_to_number, Sstring_to_number, 1, 2, 0, |
558ee900 | 2465 | doc: /* Parse STRING as a decimal number and return the number. |
8c1a1077 | 2466 | This parses both integers and floating point numbers. |
be95bee9 | 2467 | It ignores leading spaces and tabs, and all trailing chars. |
8c1a1077 PJ |
2468 | |
2469 | If BASE, interpret STRING as a number in that base. If BASE isn't | |
2470 | present, base 10 is used. BASE must be between 2 and 16 (inclusive). | |
be95bee9 | 2471 | If the base used is not 10, STRING is always parsed as integer. */) |
5842a27b | 2472 | (register Lisp_Object string, Lisp_Object base) |
7921925c | 2473 | { |
57ace6d0 | 2474 | register char *p; |
342858a5 | 2475 | register int b; |
452f4150 | 2476 | Lisp_Object val; |
25e40a4b | 2477 | |
b7826503 | 2478 | CHECK_STRING (string); |
7921925c | 2479 | |
3883fbeb RS |
2480 | if (NILP (base)) |
2481 | b = 10; | |
2482 | else | |
2483 | { | |
b7826503 | 2484 | CHECK_NUMBER (base); |
d311d28c | 2485 | if (! (2 <= XINT (base) && XINT (base) <= 16)) |
740ef0b5 | 2486 | xsignal1 (Qargs_out_of_range, base); |
d311d28c | 2487 | b = XINT (base); |
3883fbeb RS |
2488 | } |
2489 | ||
57ace6d0 | 2490 | p = SSDATA (string); |
0a3e4d65 | 2491 | while (*p == ' ' || *p == '\t') |
25e40a4b JB |
2492 | p++; |
2493 | ||
452f4150 PE |
2494 | val = string_to_number (p, b, 1); |
2495 | return NILP (val) ? make_number (0) : val; | |
7921925c | 2496 | } |
7403b5c8 | 2497 | \f |
7921925c | 2498 | enum arithop |
7a283f36 GM |
2499 | { |
2500 | Aadd, | |
2501 | Asub, | |
2502 | Amult, | |
2503 | Adiv, | |
2504 | Alogand, | |
2505 | Alogior, | |
2506 | Alogxor, | |
2507 | Amax, | |
2508 | Amin | |
2509 | }; | |
2510 | ||
f66c7cf8 PE |
2511 | static Lisp_Object float_arith_driver (double, ptrdiff_t, enum arithop, |
2512 | ptrdiff_t, Lisp_Object *); | |
112396d6 | 2513 | static Lisp_Object |
f66c7cf8 | 2514 | arith_driver (enum arithop code, ptrdiff_t nargs, Lisp_Object *args) |
7921925c JB |
2515 | { |
2516 | register Lisp_Object val; | |
f66c7cf8 | 2517 | ptrdiff_t argnum; |
7a283f36 | 2518 | register EMACS_INT accum = 0; |
5260234d | 2519 | register EMACS_INT next; |
7921925c | 2520 | |
0ae6bdee | 2521 | int overflow = 0; |
f66c7cf8 | 2522 | ptrdiff_t ok_args; |
0ae6bdee PE |
2523 | EMACS_INT ok_accum; |
2524 | ||
0220c518 | 2525 | switch (SWITCH_ENUM_CAST (code)) |
7921925c JB |
2526 | { |
2527 | case Alogior: | |
2528 | case Alogxor: | |
2529 | case Aadd: | |
2530 | case Asub: | |
7a283f36 GM |
2531 | accum = 0; |
2532 | break; | |
7921925c | 2533 | case Amult: |
7a283f36 GM |
2534 | accum = 1; |
2535 | break; | |
7921925c | 2536 | case Alogand: |
7a283f36 GM |
2537 | accum = -1; |
2538 | break; | |
2539 | default: | |
2540 | break; | |
7921925c JB |
2541 | } |
2542 | ||
2543 | for (argnum = 0; argnum < nargs; argnum++) | |
2544 | { | |
0ae6bdee PE |
2545 | if (! overflow) |
2546 | { | |
2547 | ok_args = argnum; | |
2548 | ok_accum = accum; | |
2549 | } | |
2550 | ||
7a283f36 GM |
2551 | /* Using args[argnum] as argument to CHECK_NUMBER_... */ |
2552 | val = args[argnum]; | |
b7826503 | 2553 | CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (val); |
7921925c | 2554 | |
7a283f36 | 2555 | if (FLOATP (val)) |
0ae6bdee | 2556 | return float_arith_driver (ok_accum, ok_args, code, |
7a283f36 GM |
2557 | nargs, args); |
2558 | args[argnum] = val; | |
7921925c | 2559 | next = XINT (args[argnum]); |
0220c518 | 2560 | switch (SWITCH_ENUM_CAST (code)) |
7921925c | 2561 | { |
7a283f36 | 2562 | case Aadd: |
0ae6bdee PE |
2563 | if (INT_ADD_OVERFLOW (accum, next)) |
2564 | { | |
2565 | overflow = 1; | |
2566 | accum &= INTMASK; | |
2567 | } | |
7a283f36 GM |
2568 | accum += next; |
2569 | break; | |
7921925c | 2570 | case Asub: |
0ae6bdee PE |
2571 | if (INT_SUBTRACT_OVERFLOW (accum, next)) |
2572 | { | |
2573 | overflow = 1; | |
2574 | accum &= INTMASK; | |
2575 | } | |
e64981da | 2576 | accum = argnum ? accum - next : nargs == 1 ? - next : next; |
7921925c | 2577 | break; |
7a283f36 | 2578 | case Amult: |
0ae6bdee PE |
2579 | if (INT_MULTIPLY_OVERFLOW (accum, next)) |
2580 | { | |
c8a9ca5a | 2581 | EMACS_UINT a = accum, b = next, ab = a * b; |
0ae6bdee | 2582 | overflow = 1; |
c8a9ca5a | 2583 | accum = ab & INTMASK; |
0ae6bdee PE |
2584 | } |
2585 | else | |
2586 | accum *= next; | |
7a283f36 | 2587 | break; |
7921925c | 2588 | case Adiv: |
7a283f36 GM |
2589 | if (!argnum) |
2590 | accum = next; | |
87fbf902 RS |
2591 | else |
2592 | { | |
2593 | if (next == 0) | |
740ef0b5 | 2594 | xsignal0 (Qarith_error); |
87fbf902 RS |
2595 | accum /= next; |
2596 | } | |
7921925c | 2597 | break; |
7a283f36 GM |
2598 | case Alogand: |
2599 | accum &= next; | |
2600 | break; | |
2601 | case Alogior: | |
2602 | accum |= next; | |
2603 | break; | |
2604 | case Alogxor: | |
2605 | accum ^= next; | |
2606 | break; | |
2607 | case Amax: | |
2608 | if (!argnum || next > accum) | |
2609 | accum = next; | |
2610 | break; | |
2611 | case Amin: | |
2612 | if (!argnum || next < accum) | |
2613 | accum = next; | |
2614 | break; | |
7921925c JB |
2615 | } |
2616 | } | |
2617 | ||
f187f1f7 | 2618 | XSETINT (val, accum); |
7921925c JB |
2619 | return val; |
2620 | } | |
2621 | ||
1a2f2d33 KH |
2622 | #undef isnan |
2623 | #define isnan(x) ((x) != (x)) | |
2624 | ||
7a283f36 | 2625 | static Lisp_Object |
f66c7cf8 PE |
2626 | float_arith_driver (double accum, ptrdiff_t argnum, enum arithop code, |
2627 | ptrdiff_t nargs, Lisp_Object *args) | |
7921925c JB |
2628 | { |
2629 | register Lisp_Object val; | |
2630 | double next; | |
7403b5c8 | 2631 | |
7921925c JB |
2632 | for (; argnum < nargs; argnum++) |
2633 | { | |
2634 | val = args[argnum]; /* using args[argnum] as argument to CHECK_NUMBER_... */ | |
b7826503 | 2635 | CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (val); |
7921925c | 2636 | |
e9ebc175 | 2637 | if (FLOATP (val)) |
7921925c | 2638 | { |
7539e11f | 2639 | next = XFLOAT_DATA (val); |
7921925c JB |
2640 | } |
2641 | else | |
2642 | { | |
2643 | args[argnum] = val; /* runs into a compiler bug. */ | |
2644 | next = XINT (args[argnum]); | |
2645 | } | |
0220c518 | 2646 | switch (SWITCH_ENUM_CAST (code)) |
7921925c JB |
2647 | { |
2648 | case Aadd: | |
2649 | accum += next; | |
2650 | break; | |
2651 | case Asub: | |
e64981da | 2652 | accum = argnum ? accum - next : nargs == 1 ? - next : next; |
7921925c JB |
2653 | break; |
2654 | case Amult: | |
2655 | accum *= next; | |
2656 | break; | |
2657 | case Adiv: | |
2658 | if (!argnum) | |
2659 | accum = next; | |
2660 | else | |
87fbf902 | 2661 | { |
ad8d56b9 | 2662 | if (! IEEE_FLOATING_POINT && next == 0) |
740ef0b5 | 2663 | xsignal0 (Qarith_error); |
87fbf902 RS |
2664 | accum /= next; |
2665 | } | |
7921925c JB |
2666 | break; |
2667 | case Alogand: | |
2668 | case Alogior: | |
2669 | case Alogxor: | |
2670 | return wrong_type_argument (Qinteger_or_marker_p, val); | |
2671 | case Amax: | |
1a2f2d33 | 2672 | if (!argnum || isnan (next) || next > accum) |
7921925c JB |
2673 | accum = next; |
2674 | break; | |
2675 | case Amin: | |
1a2f2d33 | 2676 | if (!argnum || isnan (next) || next < accum) |
7921925c JB |
2677 | accum = next; |
2678 | break; | |
2679 | } | |
2680 | } | |
2681 | ||
2682 | return make_float (accum); | |
2683 | } | |
cc94f3b2 | 2684 | |
7921925c | 2685 | |
a7ca3326 | 2686 | DEFUN ("+", Fplus, Splus, 0, MANY, 0, |
8c1a1077 PJ |
2687 | doc: /* Return sum of any number of arguments, which are numbers or markers. |
2688 | usage: (+ &rest NUMBERS-OR-MARKERS) */) | |
f66c7cf8 | 2689 | (ptrdiff_t nargs, Lisp_Object *args) |
7921925c JB |
2690 | { |
2691 | return arith_driver (Aadd, nargs, args); | |
2692 | } | |
2693 | ||
a7ca3326 | 2694 | DEFUN ("-", Fminus, Sminus, 0, MANY, 0, |
558ee900 | 2695 | doc: /* Negate number or subtract numbers or markers and return the result. |
8c1a1077 | 2696 | With one arg, negates it. With more than one arg, |
f44fba9e | 2697 | subtracts all but the first from the first. |
8c1a1077 | 2698 | usage: (- &optional NUMBER-OR-MARKER &rest MORE-NUMBERS-OR-MARKERS) */) |
f66c7cf8 | 2699 | (ptrdiff_t nargs, Lisp_Object *args) |
7921925c JB |
2700 | { |
2701 | return arith_driver (Asub, nargs, args); | |
2702 | } | |
2703 | ||
a7ca3326 | 2704 | DEFUN ("*", Ftimes, Stimes, 0, MANY, 0, |
be24eadf | 2705 | doc: /* Return product of any number of arguments, which are numbers or markers. |
8c1a1077 | 2706 | usage: (* &rest NUMBERS-OR-MARKERS) */) |
f66c7cf8 | 2707 | (ptrdiff_t nargs, Lisp_Object *args) |
7921925c JB |
2708 | { |
2709 | return arith_driver (Amult, nargs, args); | |
2710 | } | |
2711 | ||
a7ca3326 | 2712 | DEFUN ("/", Fquo, Squo, 2, MANY, 0, |
be24eadf | 2713 | doc: /* Return first argument divided by all the remaining arguments. |
f44fba9e | 2714 | The arguments must be numbers or markers. |
8c1a1077 | 2715 | usage: (/ DIVIDEND DIVISOR &rest DIVISORS) */) |
f66c7cf8 | 2716 | (ptrdiff_t nargs, Lisp_Object *args) |
7921925c | 2717 | { |
f66c7cf8 | 2718 | ptrdiff_t argnum; |
7ef98053 | 2719 | for (argnum = 2; argnum < nargs; argnum++) |
28712a21 JB |
2720 | if (FLOATP (args[argnum])) |
2721 | return float_arith_driver (0, 0, Adiv, nargs, args); | |
7921925c JB |
2722 | return arith_driver (Adiv, nargs, args); |
2723 | } | |
2724 | ||
a7ca3326 | 2725 | DEFUN ("%", Frem, Srem, 2, 2, 0, |
be24eadf | 2726 | doc: /* Return remainder of X divided by Y. |
8c1a1077 | 2727 | Both must be integers or markers. */) |
5842a27b | 2728 | (register Lisp_Object x, Lisp_Object y) |
7921925c JB |
2729 | { |
2730 | Lisp_Object val; | |
2731 | ||
b7826503 PJ |
2732 | CHECK_NUMBER_COERCE_MARKER (x); |
2733 | CHECK_NUMBER_COERCE_MARKER (y); | |
7921925c | 2734 | |
d311d28c | 2735 | if (XINT (y) == 0) |
740ef0b5 | 2736 | xsignal0 (Qarith_error); |
87fbf902 | 2737 | |
d9c2a0f2 | 2738 | XSETINT (val, XINT (x) % XINT (y)); |
7921925c JB |
2739 | return val; |
2740 | } | |
2741 | ||
1d66a5fa KH |
2742 | #ifndef HAVE_FMOD |
2743 | double | |
1dae0f0a | 2744 | fmod (double f1, double f2) |
1d66a5fa | 2745 | { |
bc1c9d7e PE |
2746 | double r = f1; |
2747 | ||
fa43b1e8 KH |
2748 | if (f2 < 0.0) |
2749 | f2 = -f2; | |
bc1c9d7e PE |
2750 | |
2751 | /* If the magnitude of the result exceeds that of the divisor, or | |
2752 | the sign of the result does not agree with that of the dividend, | |
2753 | iterate with the reduced value. This does not yield a | |
2754 | particularly accurate result, but at least it will be in the | |
2755 | range promised by fmod. */ | |
2756 | do | |
2757 | r -= f2 * floor (r / f2); | |
2758 | while (f2 <= (r < 0 ? -r : r) || ((r < 0) != (f1 < 0) && ! isnan (r))); | |
2759 | ||
2760 | return r; | |
1d66a5fa KH |
2761 | } |
2762 | #endif /* ! HAVE_FMOD */ | |
2763 | ||
44fa9da5 | 2764 | DEFUN ("mod", Fmod, Smod, 2, 2, 0, |
be24eadf | 2765 | doc: /* Return X modulo Y. |
8c1a1077 PJ |
2766 | The result falls between zero (inclusive) and Y (exclusive). |
2767 | Both X and Y must be numbers or markers. */) | |
5842a27b | 2768 | (register Lisp_Object x, Lisp_Object y) |
44fa9da5 PE |
2769 | { |
2770 | Lisp_Object val; | |
5260234d | 2771 | EMACS_INT i1, i2; |
44fa9da5 | 2772 | |
b7826503 PJ |
2773 | CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (x); |
2774 | CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (y); | |
44fa9da5 | 2775 | |
d9c2a0f2 | 2776 | if (FLOATP (x) || FLOATP (y)) |
ad8d56b9 PE |
2777 | return fmod_float (x, y); |
2778 | ||
d9c2a0f2 EN |
2779 | i1 = XINT (x); |
2780 | i2 = XINT (y); | |
44fa9da5 PE |
2781 | |
2782 | if (i2 == 0) | |
740ef0b5 | 2783 | xsignal0 (Qarith_error); |
7403b5c8 | 2784 | |
44fa9da5 PE |
2785 | i1 %= i2; |
2786 | ||
2787 | /* If the "remainder" comes out with the wrong sign, fix it. */ | |
04f7ec69 | 2788 | if (i2 < 0 ? i1 > 0 : i1 < 0) |
44fa9da5 PE |
2789 | i1 += i2; |
2790 | ||
f187f1f7 | 2791 | XSETINT (val, i1); |
44fa9da5 PE |
2792 | return val; |
2793 | } | |
2794 | ||
a7ca3326 | 2795 | DEFUN ("max", Fmax, Smax, 1, MANY, 0, |
8c1a1077 | 2796 | doc: /* Return largest of all the arguments (which must be numbers or markers). |
f44fba9e | 2797 | The value is always a number; markers are converted to numbers. |
8c1a1077 | 2798 | usage: (max NUMBER-OR-MARKER &rest NUMBERS-OR-MARKERS) */) |
f66c7cf8 | 2799 | (ptrdiff_t nargs, Lisp_Object *args) |
7921925c JB |
2800 | { |
2801 | return arith_driver (Amax, nargs, args); | |
2802 | } | |
2803 | ||
a7ca3326 | 2804 | DEFUN ("min", Fmin, Smin, 1, MANY, 0, |
8c1a1077 | 2805 | doc: /* Return smallest of all the arguments (which must be numbers or markers). |
f44fba9e | 2806 | The value is always a number; markers are converted to numbers. |
8c1a1077 | 2807 | usage: (min NUMBER-OR-MARKER &rest NUMBERS-OR-MARKERS) */) |
f66c7cf8 | 2808 | (ptrdiff_t nargs, Lisp_Object *args) |
7921925c JB |
2809 | { |
2810 | return arith_driver (Amin, nargs, args); | |
2811 | } | |
2812 | ||
2813 | DEFUN ("logand", Flogand, Slogand, 0, MANY, 0, | |
8c1a1077 | 2814 | doc: /* Return bitwise-and of all the arguments. |
f44fba9e | 2815 | Arguments may be integers, or markers converted to integers. |
8c1a1077 | 2816 | usage: (logand &rest INTS-OR-MARKERS) */) |
f66c7cf8 | 2817 | (ptrdiff_t nargs, Lisp_Object *args) |
7921925c JB |
2818 | { |
2819 | return arith_driver (Alogand, nargs, args); | |
2820 | } | |
2821 | ||
2822 | DEFUN ("logior", Flogior, Slogior, 0, MANY, 0, | |
8c1a1077 | 2823 | doc: /* Return bitwise-or of all the arguments. |
f44fba9e | 2824 | Arguments may be integers, or markers converted to integers. |
8c1a1077 | 2825 | usage: (logior &rest INTS-OR-MARKERS) */) |
f66c7cf8 | 2826 | (ptrdiff_t nargs, Lisp_Object *args) |
7921925c JB |
2827 | { |
2828 | return arith_driver (Alogior, nargs, args); | |
2829 | } | |
2830 | ||
2831 | DEFUN ("logxor", Flogxor, Slogxor, 0, MANY, 0, | |
8c1a1077 | 2832 | doc: /* Return bitwise-exclusive-or of all the arguments. |
f44fba9e | 2833 | Arguments may be integers, or markers converted to integers. |
31fb1b2c | 2834 | usage: (logxor &rest INTS-OR-MARKERS) */) |
f66c7cf8 | 2835 | (ptrdiff_t nargs, Lisp_Object *args) |
7921925c JB |
2836 | { |
2837 | return arith_driver (Alogxor, nargs, args); | |
2838 | } | |
2839 | ||
2840 | DEFUN ("ash", Fash, Sash, 2, 2, 0, | |
8c1a1077 PJ |
2841 | doc: /* Return VALUE with its bits shifted left by COUNT. |
2842 | If COUNT is negative, shifting is actually to the right. | |
2843 | In this case, the sign bit is duplicated. */) | |
5842a27b | 2844 | (register Lisp_Object value, Lisp_Object count) |
7921925c JB |
2845 | { |
2846 | register Lisp_Object val; | |
2847 | ||
b7826503 PJ |
2848 | CHECK_NUMBER (value); |
2849 | CHECK_NUMBER (count); | |
7921925c | 2850 | |
81d70626 RS |
2851 | if (XINT (count) >= BITS_PER_EMACS_INT) |
2852 | XSETINT (val, 0); | |
2853 | else if (XINT (count) > 0) | |
3d9652eb | 2854 | XSETINT (val, XINT (value) << XFASTINT (count)); |
81d70626 RS |
2855 | else if (XINT (count) <= -BITS_PER_EMACS_INT) |
2856 | XSETINT (val, XINT (value) < 0 ? -1 : 0); | |
7921925c | 2857 | else |
3d9652eb | 2858 | XSETINT (val, XINT (value) >> -XINT (count)); |
7921925c JB |
2859 | return val; |
2860 | } | |
2861 | ||
2862 | DEFUN ("lsh", Flsh, Slsh, 2, 2, 0, | |
8c1a1077 PJ |
2863 | doc: /* Return VALUE with its bits shifted left by COUNT. |
2864 | If COUNT is negative, shifting is actually to the right. | |
3a9b1297 | 2865 | In this case, zeros are shifted in on the left. */) |
5842a27b | 2866 | (register Lisp_Object value, Lisp_Object count) |
7921925c JB |
2867 | { |
2868 | register Lisp_Object val; | |
2869 | ||
b7826503 PJ |
2870 | CHECK_NUMBER (value); |
2871 | CHECK_NUMBER (count); | |
7921925c | 2872 | |
81d70626 RS |
2873 | if (XINT (count) >= BITS_PER_EMACS_INT) |
2874 | XSETINT (val, 0); | |
2875 | else if (XINT (count) > 0) | |
c8a9ca5a | 2876 | XSETINT (val, XUINT (value) << XFASTINT (count)); |
81d70626 RS |
2877 | else if (XINT (count) <= -BITS_PER_EMACS_INT) |
2878 | XSETINT (val, 0); | |
7921925c | 2879 | else |
c8a9ca5a | 2880 | XSETINT (val, XUINT (value) >> -XINT (count)); |
7921925c JB |
2881 | return val; |
2882 | } | |
2883 | ||
a7ca3326 | 2884 | DEFUN ("1+", Fadd1, Sadd1, 1, 1, 0, |
8c1a1077 PJ |
2885 | doc: /* Return NUMBER plus one. NUMBER may be a number or a marker. |
2886 | Markers are converted to integers. */) | |
5842a27b | 2887 | (register Lisp_Object number) |
7921925c | 2888 | { |
b7826503 | 2889 | CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (number); |
7921925c | 2890 | |
d9c2a0f2 | 2891 | if (FLOATP (number)) |
7539e11f | 2892 | return (make_float (1.0 + XFLOAT_DATA (number))); |
7921925c | 2893 | |
d9c2a0f2 EN |
2894 | XSETINT (number, XINT (number) + 1); |
2895 | return number; | |
7921925c JB |
2896 | } |
2897 | ||
a7ca3326 | 2898 | DEFUN ("1-", Fsub1, Ssub1, 1, 1, 0, |
8c1a1077 PJ |
2899 | doc: /* Return NUMBER minus one. NUMBER may be a number or a marker. |
2900 | Markers are converted to integers. */) | |
5842a27b | 2901 | (register Lisp_Object number) |
7921925c | 2902 | { |
b7826503 | 2903 | CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (number); |
7921925c | 2904 | |
d9c2a0f2 | 2905 | if (FLOATP (number)) |
7539e11f | 2906 | return (make_float (-1.0 + XFLOAT_DATA (number))); |
7921925c | 2907 | |
d9c2a0f2 EN |
2908 | XSETINT (number, XINT (number) - 1); |
2909 | return number; | |
7921925c JB |
2910 | } |
2911 | ||
2912 | DEFUN ("lognot", Flognot, Slognot, 1, 1, 0, | |
8c1a1077 | 2913 | doc: /* Return the bitwise complement of NUMBER. NUMBER must be an integer. */) |
5842a27b | 2914 | (register Lisp_Object number) |
7921925c | 2915 | { |
b7826503 | 2916 | CHECK_NUMBER (number); |
53924017 | 2917 | XSETINT (number, ~XINT (number)); |
d9c2a0f2 | 2918 | return number; |
7921925c | 2919 | } |
6b61353c | 2920 | |
a7ca3326 | 2921 | DEFUN ("byteorder", Fbyteorder, Sbyteorder, 0, 0, 0, |
6b61353c KH |
2922 | doc: /* Return the byteorder for the machine. |
2923 | Returns 66 (ASCII uppercase B) for big endian machines or 108 (ASCII | |
2924 | lowercase l) for small endian machines. */) | |
5842a27b | 2925 | (void) |
6b61353c KH |
2926 | { |
2927 | unsigned i = 0x04030201; | |
2928 | int order = *(char *)&i == 1 ? 108 : 66; | |
2929 | ||
2930 | return make_number (order); | |
2931 | } | |
2932 | ||
2933 | ||
7921925c JB |
2934 | \f |
2935 | void | |
971de7fb | 2936 | syms_of_data (void) |
7921925c | 2937 | { |
6315e761 RS |
2938 | Lisp_Object error_tail, arith_tail; |
2939 | ||
620c53a6 SM |
2940 | DEFSYM (Qquote, "quote"); |
2941 | DEFSYM (Qlambda, "lambda"); | |
2942 | DEFSYM (Qsubr, "subr"); | |
2943 | DEFSYM (Qerror_conditions, "error-conditions"); | |
2944 | DEFSYM (Qerror_message, "error-message"); | |
2945 | DEFSYM (Qtop_level, "top-level"); | |
2946 | ||
2947 | DEFSYM (Qerror, "error"); | |
71873e2b | 2948 | DEFSYM (Quser_error, "user-error"); |
620c53a6 SM |
2949 | DEFSYM (Qquit, "quit"); |
2950 | DEFSYM (Qwrong_type_argument, "wrong-type-argument"); | |
2951 | DEFSYM (Qargs_out_of_range, "args-out-of-range"); | |
2952 | DEFSYM (Qvoid_function, "void-function"); | |
2953 | DEFSYM (Qcyclic_function_indirection, "cyclic-function-indirection"); | |
2954 | DEFSYM (Qcyclic_variable_indirection, "cyclic-variable-indirection"); | |
2955 | DEFSYM (Qvoid_variable, "void-variable"); | |
2956 | DEFSYM (Qsetting_constant, "setting-constant"); | |
2957 | DEFSYM (Qinvalid_read_syntax, "invalid-read-syntax"); | |
2958 | ||
2959 | DEFSYM (Qinvalid_function, "invalid-function"); | |
2960 | DEFSYM (Qwrong_number_of_arguments, "wrong-number-of-arguments"); | |
2961 | DEFSYM (Qno_catch, "no-catch"); | |
2962 | DEFSYM (Qend_of_file, "end-of-file"); | |
2963 | DEFSYM (Qarith_error, "arith-error"); | |
2964 | DEFSYM (Qbeginning_of_buffer, "beginning-of-buffer"); | |
2965 | DEFSYM (Qend_of_buffer, "end-of-buffer"); | |
2966 | DEFSYM (Qbuffer_read_only, "buffer-read-only"); | |
2967 | DEFSYM (Qtext_read_only, "text-read-only"); | |
2968 | DEFSYM (Qmark_inactive, "mark-inactive"); | |
2969 | ||
2970 | DEFSYM (Qlistp, "listp"); | |
2971 | DEFSYM (Qconsp, "consp"); | |
2972 | DEFSYM (Qsymbolp, "symbolp"); | |
2973 | DEFSYM (Qkeywordp, "keywordp"); | |
2974 | DEFSYM (Qintegerp, "integerp"); | |
2975 | DEFSYM (Qnatnump, "natnump"); | |
2976 | DEFSYM (Qwholenump, "wholenump"); | |
2977 | DEFSYM (Qstringp, "stringp"); | |
2978 | DEFSYM (Qarrayp, "arrayp"); | |
2979 | DEFSYM (Qsequencep, "sequencep"); | |
2980 | DEFSYM (Qbufferp, "bufferp"); | |
2981 | DEFSYM (Qvectorp, "vectorp"); | |
2982 | DEFSYM (Qchar_or_string_p, "char-or-string-p"); | |
2983 | DEFSYM (Qmarkerp, "markerp"); | |
2984 | DEFSYM (Qbuffer_or_string_p, "buffer-or-string-p"); | |
2985 | DEFSYM (Qinteger_or_marker_p, "integer-or-marker-p"); | |
2986 | DEFSYM (Qboundp, "boundp"); | |
2987 | DEFSYM (Qfboundp, "fboundp"); | |
2988 | ||
2989 | DEFSYM (Qfloatp, "floatp"); | |
2990 | DEFSYM (Qnumberp, "numberp"); | |
2991 | DEFSYM (Qnumber_or_marker_p, "number-or-marker-p"); | |
2992 | ||
2993 | DEFSYM (Qchar_table_p, "char-table-p"); | |
2994 | DEFSYM (Qvector_or_char_table_p, "vector-or-char-table-p"); | |
2995 | ||
2996 | DEFSYM (Qsubrp, "subrp"); | |
2997 | DEFSYM (Qunevalled, "unevalled"); | |
2998 | DEFSYM (Qmany, "many"); | |
2999 | ||
3000 | DEFSYM (Qcdr, "cdr"); | |
3001 | ||
3002 | /* Handle automatic advice activation. */ | |
3003 | DEFSYM (Qad_advice_info, "ad-advice-info"); | |
3004 | DEFSYM (Qad_activate_internal, "ad-activate-internal"); | |
f845f2c9 | 3005 | |
d67b4f80 | 3006 | error_tail = pure_cons (Qerror, Qnil); |
6315e761 | 3007 | |
620c53a6 SM |
3008 | /* ERROR is used as a signaler for random errors for which nothing else is |
3009 | right. */ | |
7921925c JB |
3010 | |
3011 | Fput (Qerror, Qerror_conditions, | |
6315e761 | 3012 | error_tail); |
7921925c | 3013 | Fput (Qerror, Qerror_message, |
2a0213a6 | 3014 | build_pure_c_string ("error")); |
7921925c | 3015 | |
71873e2b SM |
3016 | #define PUT_ERROR(sym, tail, msg) \ |
3017 | Fput (sym, Qerror_conditions, pure_cons (sym, tail)); \ | |
2a0213a6 | 3018 | Fput (sym, Qerror_message, build_pure_c_string (msg)) |
71873e2b SM |
3019 | |
3020 | PUT_ERROR (Qquit, Qnil, "Quit"); | |
3021 | ||
3022 | PUT_ERROR (Quser_error, error_tail, ""); | |
3023 | PUT_ERROR (Qwrong_type_argument, error_tail, "Wrong type argument"); | |
3024 | PUT_ERROR (Qargs_out_of_range, error_tail, "Args out of range"); | |
3025 | PUT_ERROR (Qvoid_function, error_tail, | |
3026 | "Symbol's function definition is void"); | |
3027 | PUT_ERROR (Qcyclic_function_indirection, error_tail, | |
3028 | "Symbol's chain of function indirections contains a loop"); | |
3029 | PUT_ERROR (Qcyclic_variable_indirection, error_tail, | |
3030 | "Symbol's chain of variable indirections contains a loop"); | |
620c53a6 | 3031 | DEFSYM (Qcircular_list, "circular-list"); |
71873e2b SM |
3032 | PUT_ERROR (Qcircular_list, error_tail, "List contains a loop"); |
3033 | PUT_ERROR (Qvoid_variable, error_tail, "Symbol's value as variable is void"); | |
3034 | PUT_ERROR (Qsetting_constant, error_tail, | |
3035 | "Attempt to set a constant symbol"); | |
3036 | PUT_ERROR (Qinvalid_read_syntax, error_tail, "Invalid read syntax"); | |
3037 | PUT_ERROR (Qinvalid_function, error_tail, "Invalid function"); | |
3038 | PUT_ERROR (Qwrong_number_of_arguments, error_tail, | |
3039 | "Wrong number of arguments"); | |
3040 | PUT_ERROR (Qno_catch, error_tail, "No catch for tag"); | |
3041 | PUT_ERROR (Qend_of_file, error_tail, "End of file during parsing"); | |
7921925c | 3042 | |
d67b4f80 | 3043 | arith_tail = pure_cons (Qarith_error, error_tail); |
71873e2b | 3044 | Fput (Qarith_error, Qerror_conditions, arith_tail); |
2a0213a6 | 3045 | Fput (Qarith_error, Qerror_message, build_pure_c_string ("Arithmetic error")); |
71873e2b SM |
3046 | |
3047 | PUT_ERROR (Qbeginning_of_buffer, error_tail, "Beginning of buffer"); | |
3048 | PUT_ERROR (Qend_of_buffer, error_tail, "End of buffer"); | |
3049 | PUT_ERROR (Qbuffer_read_only, error_tail, "Buffer is read-only"); | |
3050 | PUT_ERROR (Qtext_read_only, pure_cons (Qbuffer_read_only, error_tail), | |
3051 | "Text is read-only"); | |
8f9f49d7 | 3052 | |
620c53a6 SM |
3053 | DEFSYM (Qrange_error, "range-error"); |
3054 | DEFSYM (Qdomain_error, "domain-error"); | |
3055 | DEFSYM (Qsingularity_error, "singularity-error"); | |
3056 | DEFSYM (Qoverflow_error, "overflow-error"); | |
3057 | DEFSYM (Qunderflow_error, "underflow-error"); | |
6315e761 | 3058 | |
71873e2b SM |
3059 | PUT_ERROR (Qdomain_error, arith_tail, "Arithmetic domain error"); |
3060 | ||
3061 | PUT_ERROR (Qrange_error, arith_tail, "Arithmetic range error"); | |
3062 | ||
3063 | PUT_ERROR (Qsingularity_error, Fcons (Qdomain_error, arith_tail), | |
3064 | "Arithmetic singularity error"); | |
3065 | ||
3066 | PUT_ERROR (Qoverflow_error, Fcons (Qdomain_error, arith_tail), | |
3067 | "Arithmetic overflow error"); | |
3068 | PUT_ERROR (Qunderflow_error, Fcons (Qdomain_error, arith_tail), | |
3069 | "Arithmetic underflow error"); | |
6315e761 | 3070 | |
7921925c JB |
3071 | staticpro (&Qnil); |
3072 | staticpro (&Qt); | |
7921925c | 3073 | staticpro (&Qunbound); |
7921925c | 3074 | |
39bcc759 | 3075 | /* Types that type-of returns. */ |
620c53a6 SM |
3076 | DEFSYM (Qinteger, "integer"); |
3077 | DEFSYM (Qsymbol, "symbol"); | |
3078 | DEFSYM (Qstring, "string"); | |
3079 | DEFSYM (Qcons, "cons"); | |
3080 | DEFSYM (Qmarker, "marker"); | |
3081 | DEFSYM (Qoverlay, "overlay"); | |
3082 | DEFSYM (Qfloat, "float"); | |
3083 | DEFSYM (Qwindow_configuration, "window-configuration"); | |
3084 | DEFSYM (Qprocess, "process"); | |
3085 | DEFSYM (Qwindow, "window"); | |
620c53a6 SM |
3086 | DEFSYM (Qcompiled_function, "compiled-function"); |
3087 | DEFSYM (Qbuffer, "buffer"); | |
3088 | DEFSYM (Qframe, "frame"); | |
3089 | DEFSYM (Qvector, "vector"); | |
3090 | DEFSYM (Qchar_table, "char-table"); | |
3091 | DEFSYM (Qbool_vector, "bool-vector"); | |
3092 | DEFSYM (Qhash_table, "hash-table"); | |
3ab6e069 DA |
3093 | /* Used by Fgarbage_collect. */ |
3094 | DEFSYM (Qinterval, "interval"); | |
3095 | DEFSYM (Qmisc, "misc"); | |
39bcc759 | 3096 | |
61b108cc SM |
3097 | DEFSYM (Qdefun, "defun"); |
3098 | ||
4e6f2626 CY |
3099 | DEFSYM (Qfont_spec, "font-spec"); |
3100 | DEFSYM (Qfont_entity, "font-entity"); | |
3101 | DEFSYM (Qfont_object, "font-object"); | |
3102 | ||
3860280a CY |
3103 | DEFSYM (Qinteractive_form, "interactive-form"); |
3104 | ||
f35d5bad | 3105 | defsubr (&Sindirect_variable); |
6b61353c | 3106 | defsubr (&Sinteractive_form); |
7921925c JB |
3107 | defsubr (&Seq); |
3108 | defsubr (&Snull); | |
39bcc759 | 3109 | defsubr (&Stype_of); |
7921925c JB |
3110 | defsubr (&Slistp); |
3111 | defsubr (&Snlistp); | |
3112 | defsubr (&Sconsp); | |
3113 | defsubr (&Satom); | |
3114 | defsubr (&Sintegerp); | |
464f8898 | 3115 | defsubr (&Sinteger_or_marker_p); |
7921925c JB |
3116 | defsubr (&Snumberp); |
3117 | defsubr (&Snumber_or_marker_p); | |
464f8898 | 3118 | defsubr (&Sfloatp); |
7921925c JB |
3119 | defsubr (&Snatnump); |
3120 | defsubr (&Ssymbolp); | |
cda9b832 | 3121 | defsubr (&Skeywordp); |
7921925c | 3122 | defsubr (&Sstringp); |
0f56470d | 3123 | defsubr (&Smultibyte_string_p); |
7921925c | 3124 | defsubr (&Svectorp); |
4d276982 | 3125 | defsubr (&Schar_table_p); |
7f0edce7 | 3126 | defsubr (&Svector_or_char_table_p); |
4d276982 | 3127 | defsubr (&Sbool_vector_p); |
7921925c JB |
3128 | defsubr (&Sarrayp); |
3129 | defsubr (&Ssequencep); | |
3130 | defsubr (&Sbufferp); | |
3131 | defsubr (&Smarkerp); | |
7921925c | 3132 | defsubr (&Ssubrp); |
dbc4e1c1 | 3133 | defsubr (&Sbyte_code_function_p); |
7921925c JB |
3134 | defsubr (&Schar_or_string_p); |
3135 | defsubr (&Scar); | |
3136 | defsubr (&Scdr); | |
3137 | defsubr (&Scar_safe); | |
3138 | defsubr (&Scdr_safe); | |
3139 | defsubr (&Ssetcar); | |
3140 | defsubr (&Ssetcdr); | |
3141 | defsubr (&Ssymbol_function); | |
ffd56f97 | 3142 | defsubr (&Sindirect_function); |
7921925c JB |
3143 | defsubr (&Ssymbol_plist); |
3144 | defsubr (&Ssymbol_name); | |
3145 | defsubr (&Smakunbound); | |
3146 | defsubr (&Sfmakunbound); | |
3147 | defsubr (&Sboundp); | |
3148 | defsubr (&Sfboundp); | |
3149 | defsubr (&Sfset); | |
80df38a2 | 3150 | defsubr (&Sdefalias); |
7921925c JB |
3151 | defsubr (&Ssetplist); |
3152 | defsubr (&Ssymbol_value); | |
3153 | defsubr (&Sset); | |
3154 | defsubr (&Sdefault_boundp); | |
3155 | defsubr (&Sdefault_value); | |
3156 | defsubr (&Sset_default); | |
3157 | defsubr (&Ssetq_default); | |
3158 | defsubr (&Smake_variable_buffer_local); | |
3159 | defsubr (&Smake_local_variable); | |
3160 | defsubr (&Skill_local_variable); | |
b0c2d1c6 | 3161 | defsubr (&Smake_variable_frame_local); |
62476adc | 3162 | defsubr (&Slocal_variable_p); |
f4f04cee | 3163 | defsubr (&Slocal_variable_if_set_p); |
6b61353c | 3164 | defsubr (&Svariable_binding_locus); |
c40bb1ba | 3165 | #if 0 /* XXX Remove this. --lorentey */ |
2a42d440 KL |
3166 | defsubr (&Sterminal_local_value); |
3167 | defsubr (&Sset_terminal_local_value); | |
c40bb1ba | 3168 | #endif |
7921925c JB |
3169 | defsubr (&Saref); |
3170 | defsubr (&Saset); | |
f2980264 | 3171 | defsubr (&Snumber_to_string); |
25e40a4b | 3172 | defsubr (&Sstring_to_number); |
7921925c JB |
3173 | defsubr (&Seqlsign); |
3174 | defsubr (&Slss); | |
3175 | defsubr (&Sgtr); | |
3176 | defsubr (&Sleq); | |
3177 | defsubr (&Sgeq); | |
3178 | defsubr (&Sneq); | |
3179 | defsubr (&Szerop); | |
3180 | defsubr (&Splus); | |
3181 | defsubr (&Sminus); | |
3182 | defsubr (&Stimes); | |
3183 | defsubr (&Squo); | |
3184 | defsubr (&Srem); | |
44fa9da5 | 3185 | defsubr (&Smod); |
7921925c JB |
3186 | defsubr (&Smax); |
3187 | defsubr (&Smin); | |
3188 | defsubr (&Slogand); | |
3189 | defsubr (&Slogior); | |
3190 | defsubr (&Slogxor); | |
3191 | defsubr (&Slsh); | |
3192 | defsubr (&Sash); | |
3193 | defsubr (&Sadd1); | |
3194 | defsubr (&Ssub1); | |
3195 | defsubr (&Slognot); | |
6b61353c | 3196 | defsubr (&Sbyteorder); |
6f0e897f | 3197 | defsubr (&Ssubr_arity); |
0fddae66 | 3198 | defsubr (&Ssubr_name); |
8e86942b | 3199 | |
c80bd143 | 3200 | XSYMBOL (Qwholenump)->function = XSYMBOL (Qnatnump)->function; |
e6190b11 | 3201 | |
29208e82 | 3202 | DEFVAR_LISP ("most-positive-fixnum", Vmost_positive_fixnum, |
9d113d9d AS |
3203 | doc: /* The largest value that is representable in a Lisp integer. */); |
3204 | Vmost_positive_fixnum = make_number (MOST_POSITIVE_FIXNUM); | |
d67b4f80 | 3205 | XSYMBOL (intern_c_string ("most-positive-fixnum"))->constant = 1; |
bfb96cb7 | 3206 | |
29208e82 | 3207 | DEFVAR_LISP ("most-negative-fixnum", Vmost_negative_fixnum, |
9d113d9d AS |
3208 | doc: /* The smallest value that is representable in a Lisp integer. */); |
3209 | Vmost_negative_fixnum = make_number (MOST_NEGATIVE_FIXNUM); | |
d67b4f80 | 3210 | XSYMBOL (intern_c_string ("most-negative-fixnum"))->constant = 1; |
7921925c JB |
3211 | } |
3212 | ||
f97334a2 | 3213 | #ifndef FORWARD_SIGNAL_TO_MAIN_THREAD |
845ca893 | 3214 | _Noreturn |
f97334a2 | 3215 | #endif |
9af30bdf | 3216 | static void |
971de7fb | 3217 | arith_error (int signo) |
7921925c | 3218 | { |
e065a56e | 3219 | sigsetmask (SIGEMPTYMASK); |
7921925c | 3220 | |
333f1b6f | 3221 | SIGNAL_THREAD_CHECK (signo); |
740ef0b5 | 3222 | xsignal0 (Qarith_error); |
7921925c JB |
3223 | } |
3224 | ||
dfcf069d | 3225 | void |
971de7fb | 3226 | init_data (void) |
7921925c JB |
3227 | { |
3228 | /* Don't do this if just dumping out. | |
3229 | We don't want to call `signal' in this case | |
3230 | so that we don't have trouble with dumping | |
3231 | signal-delivering routines in an inconsistent state. */ | |
3232 | #ifndef CANNOT_DUMP | |
3233 | if (!initialized) | |
3234 | return; | |
3235 | #endif /* CANNOT_DUMP */ | |
3236 | signal (SIGFPE, arith_error); | |
7921925c | 3237 | } |