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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" |
fb8e9847 | 37 | |
2f261542 | 38 | #include <float.h> |
620c53a6 | 39 | /* If IEEE_FLOATING_POINT isn't defined, default it from FLT_*. */ |
ad8d56b9 PE |
40 | #ifndef IEEE_FLOATING_POINT |
41 | #if (FLT_RADIX == 2 && FLT_MANT_DIG == 24 \ | |
42 | && FLT_MIN_EXP == -125 && FLT_MAX_EXP == 128) | |
43 | #define IEEE_FLOATING_POINT 1 | |
44 | #else | |
45 | #define IEEE_FLOATING_POINT 0 | |
46 | #endif | |
47 | #endif | |
48 | ||
7921925c | 49 | #include <math.h> |
7921925c | 50 | |
955cbe7b PE |
51 | Lisp_Object Qnil, Qt, Qquote, Qlambda, Qunbound; |
52 | static Lisp_Object Qsubr; | |
7921925c | 53 | Lisp_Object Qerror_conditions, Qerror_message, Qtop_level; |
955cbe7b PE |
54 | Lisp_Object Qerror, Qquit, Qargs_out_of_range; |
55 | static Lisp_Object Qwrong_type_argument; | |
56 | Lisp_Object Qvoid_variable, Qvoid_function; | |
57 | static Lisp_Object Qcyclic_function_indirection; | |
58 | static Lisp_Object Qcyclic_variable_indirection; | |
59 | Lisp_Object Qcircular_list; | |
60 | static Lisp_Object Qsetting_constant; | |
61 | Lisp_Object Qinvalid_read_syntax; | |
7921925c | 62 | Lisp_Object Qinvalid_function, Qwrong_number_of_arguments, Qno_catch; |
3b8819d6 | 63 | Lisp_Object Qend_of_file, Qarith_error, Qmark_inactive; |
7921925c | 64 | Lisp_Object Qbeginning_of_buffer, Qend_of_buffer, Qbuffer_read_only; |
8f9f49d7 | 65 | Lisp_Object Qtext_read_only; |
6b61353c | 66 | |
955cbe7b PE |
67 | Lisp_Object Qintegerp, Qwholenump, Qsymbolp, Qlistp, Qconsp; |
68 | static Lisp_Object Qnatnump; | |
7921925c JB |
69 | Lisp_Object Qstringp, Qarrayp, Qsequencep, Qbufferp; |
70 | Lisp_Object Qchar_or_string_p, Qmarkerp, Qinteger_or_marker_p, Qvectorp; | |
955cbe7b PE |
71 | Lisp_Object Qbuffer_or_string_p; |
72 | static Lisp_Object Qkeywordp, Qboundp; | |
73 | Lisp_Object Qfboundp; | |
7f0edce7 | 74 | Lisp_Object Qchar_table_p, Qvector_or_char_table_p; |
39bcc759 | 75 | |
7921925c | 76 | Lisp_Object Qcdr; |
955cbe7b | 77 | static Lisp_Object Qad_advice_info, Qad_activate_internal; |
7921925c | 78 | |
6315e761 RS |
79 | Lisp_Object Qrange_error, Qdomain_error, Qsingularity_error; |
80 | Lisp_Object Qoverflow_error, Qunderflow_error; | |
81 | ||
464f8898 | 82 | Lisp_Object Qfloatp; |
7921925c | 83 | Lisp_Object Qnumberp, Qnumber_or_marker_p; |
7921925c | 84 | |
6b61353c KH |
85 | Lisp_Object Qinteger; |
86 | static Lisp_Object Qsymbol, Qstring, Qcons, Qmarker, Qoverlay; | |
e6cba650 DN |
87 | Lisp_Object Qwindow; |
88 | static Lisp_Object Qfloat, Qwindow_configuration; | |
955cbe7b | 89 | static Lisp_Object Qprocess; |
4b66faf3 PE |
90 | static Lisp_Object Qcompiled_function, Qframe, Qvector; |
91 | Lisp_Object Qbuffer; | |
81dc5de5 | 92 | static Lisp_Object Qchar_table, Qbool_vector, Qhash_table; |
6f0e897f | 93 | static Lisp_Object Qsubrp, Qmany, Qunevalled; |
4e6f2626 | 94 | Lisp_Object Qfont_spec, Qfont_entity, Qfont_object; |
39bcc759 | 95 | |
3860280a CY |
96 | Lisp_Object Qinteractive_form; |
97 | ||
ce5b453a | 98 | static void swap_in_symval_forwarding (struct Lisp_Symbol *, struct Lisp_Buffer_Local_Value *); |
d02eeab3 | 99 | |
13d95cc0 | 100 | |
7921925c | 101 | Lisp_Object |
971de7fb | 102 | wrong_type_argument (register Lisp_Object predicate, register Lisp_Object value) |
7921925c | 103 | { |
2de9f71c SM |
104 | /* If VALUE is not even a valid Lisp object, we'd want to abort here |
105 | where we can get a backtrace showing where it came from. We used | |
106 | to try and do that by checking the tagbits, but nowadays all | |
107 | tagbits are potentially valid. */ | |
108 | /* if ((unsigned int) XTYPE (value) >= Lisp_Type_Limit) | |
109 | * abort (); */ | |
e1351ff7 | 110 | |
740ef0b5 | 111 | xsignal2 (Qwrong_type_argument, predicate, value); |
7921925c JB |
112 | } |
113 | ||
dfcf069d | 114 | void |
971de7fb | 115 | pure_write_error (void) |
7921925c JB |
116 | { |
117 | error ("Attempt to modify read-only object"); | |
118 | } | |
119 | ||
120 | void | |
971de7fb | 121 | args_out_of_range (Lisp_Object a1, Lisp_Object a2) |
7921925c | 122 | { |
740ef0b5 | 123 | xsignal2 (Qargs_out_of_range, a1, a2); |
7921925c JB |
124 | } |
125 | ||
126 | void | |
971de7fb | 127 | args_out_of_range_3 (Lisp_Object a1, Lisp_Object a2, Lisp_Object a3) |
7921925c | 128 | { |
740ef0b5 | 129 | xsignal3 (Qargs_out_of_range, a1, a2, a3); |
7921925c JB |
130 | } |
131 | ||
7921925c JB |
132 | \f |
133 | /* Data type predicates */ | |
134 | ||
135 | DEFUN ("eq", Feq, Seq, 2, 2, 0, | |
8c1a1077 | 136 | doc: /* Return t if the two args are the same Lisp object. */) |
5842a27b | 137 | (Lisp_Object obj1, Lisp_Object obj2) |
7921925c JB |
138 | { |
139 | if (EQ (obj1, obj2)) | |
140 | return Qt; | |
141 | return Qnil; | |
142 | } | |
143 | ||
8c1a1077 PJ |
144 | DEFUN ("null", Fnull, Snull, 1, 1, 0, |
145 | doc: /* Return t if OBJECT is nil. */) | |
5842a27b | 146 | (Lisp_Object object) |
7921925c | 147 | { |
39bcc759 | 148 | if (NILP (object)) |
7921925c JB |
149 | return Qt; |
150 | return Qnil; | |
151 | } | |
152 | ||
39bcc759 | 153 | DEFUN ("type-of", Ftype_of, Stype_of, 1, 1, 0, |
8c1a1077 PJ |
154 | doc: /* Return a symbol representing the type of OBJECT. |
155 | The symbol returned names the object's basic type; | |
156 | for example, (type-of 1) returns `integer'. */) | |
5842a27b | 157 | (Lisp_Object object) |
39bcc759 | 158 | { |
8e50cc2d | 159 | switch (XTYPE (object)) |
39bcc759 | 160 | { |
2de9f71c | 161 | case_Lisp_Int: |
39bcc759 RS |
162 | return Qinteger; |
163 | ||
164 | case Lisp_Symbol: | |
165 | return Qsymbol; | |
166 | ||
167 | case Lisp_String: | |
168 | return Qstring; | |
169 | ||
170 | case Lisp_Cons: | |
171 | return Qcons; | |
172 | ||
173 | case Lisp_Misc: | |
324a6eef | 174 | switch (XMISCTYPE (object)) |
39bcc759 RS |
175 | { |
176 | case Lisp_Misc_Marker: | |
177 | return Qmarker; | |
178 | case Lisp_Misc_Overlay: | |
179 | return Qoverlay; | |
180 | case Lisp_Misc_Float: | |
181 | return Qfloat; | |
182 | } | |
183 | abort (); | |
184 | ||
185 | case Lisp_Vectorlike: | |
8e50cc2d | 186 | if (WINDOW_CONFIGURATIONP (object)) |
39bcc759 | 187 | return Qwindow_configuration; |
8e50cc2d | 188 | if (PROCESSP (object)) |
39bcc759 | 189 | return Qprocess; |
8e50cc2d | 190 | if (WINDOWP (object)) |
39bcc759 | 191 | return Qwindow; |
8e50cc2d | 192 | if (SUBRP (object)) |
39bcc759 | 193 | return Qsubr; |
876c194c SM |
194 | if (COMPILEDP (object)) |
195 | return Qcompiled_function; | |
8e50cc2d | 196 | if (BUFFERP (object)) |
39bcc759 | 197 | return Qbuffer; |
8e50cc2d | 198 | if (CHAR_TABLE_P (object)) |
fc67d5be | 199 | return Qchar_table; |
8e50cc2d | 200 | if (BOOL_VECTOR_P (object)) |
fc67d5be | 201 | return Qbool_vector; |
8e50cc2d | 202 | if (FRAMEP (object)) |
39bcc759 | 203 | return Qframe; |
8e50cc2d | 204 | if (HASH_TABLE_P (object)) |
81dc5de5 | 205 | return Qhash_table; |
4e6f2626 CY |
206 | if (FONT_SPEC_P (object)) |
207 | return Qfont_spec; | |
208 | if (FONT_ENTITY_P (object)) | |
209 | return Qfont_entity; | |
210 | if (FONT_OBJECT_P (object)) | |
211 | return Qfont_object; | |
39bcc759 RS |
212 | return Qvector; |
213 | ||
39bcc759 RS |
214 | case Lisp_Float: |
215 | return Qfloat; | |
39bcc759 RS |
216 | |
217 | default: | |
218 | abort (); | |
219 | } | |
220 | } | |
221 | ||
8c1a1077 PJ |
222 | DEFUN ("consp", Fconsp, Sconsp, 1, 1, 0, |
223 | doc: /* Return t if OBJECT is a cons cell. */) | |
5842a27b | 224 | (Lisp_Object object) |
7921925c | 225 | { |
39bcc759 | 226 | if (CONSP (object)) |
7921925c JB |
227 | return Qt; |
228 | return Qnil; | |
229 | } | |
230 | ||
25638b07 | 231 | DEFUN ("atom", Fatom, Satom, 1, 1, 0, |
8c1a1077 | 232 | doc: /* Return t if OBJECT is not a cons cell. This includes nil. */) |
5842a27b | 233 | (Lisp_Object object) |
7921925c | 234 | { |
39bcc759 | 235 | if (CONSP (object)) |
7921925c JB |
236 | return Qnil; |
237 | return Qt; | |
238 | } | |
239 | ||
25638b07 | 240 | DEFUN ("listp", Flistp, Slistp, 1, 1, 0, |
4cdcdcc9 LT |
241 | doc: /* Return t if OBJECT is a list, that is, a cons cell or nil. |
242 | Otherwise, return nil. */) | |
5842a27b | 243 | (Lisp_Object object) |
7921925c | 244 | { |
39bcc759 | 245 | if (CONSP (object) || NILP (object)) |
7921925c JB |
246 | return Qt; |
247 | return Qnil; | |
248 | } | |
249 | ||
25638b07 | 250 | DEFUN ("nlistp", Fnlistp, Snlistp, 1, 1, 0, |
8c1a1077 | 251 | doc: /* Return t if OBJECT is not a list. Lists include nil. */) |
5842a27b | 252 | (Lisp_Object object) |
7921925c | 253 | { |
39bcc759 | 254 | if (CONSP (object) || NILP (object)) |
7921925c JB |
255 | return Qnil; |
256 | return Qt; | |
257 | } | |
258 | \f | |
25638b07 | 259 | DEFUN ("symbolp", Fsymbolp, Ssymbolp, 1, 1, 0, |
8c1a1077 | 260 | doc: /* Return t if OBJECT is a symbol. */) |
5842a27b | 261 | (Lisp_Object object) |
7921925c | 262 | { |
39bcc759 | 263 | if (SYMBOLP (object)) |
7921925c JB |
264 | return Qt; |
265 | return Qnil; | |
266 | } | |
267 | ||
cda9b832 DL |
268 | /* Define this in C to avoid unnecessarily consing up the symbol |
269 | name. */ | |
270 | DEFUN ("keywordp", Fkeywordp, Skeywordp, 1, 1, 0, | |
8c1a1077 PJ |
271 | doc: /* Return t if OBJECT is a keyword. |
272 | This means that it is a symbol with a print name beginning with `:' | |
273 | interned in the initial obarray. */) | |
5842a27b | 274 | (Lisp_Object object) |
cda9b832 DL |
275 | { |
276 | if (SYMBOLP (object) | |
d5db4077 | 277 | && SREF (SYMBOL_NAME (object), 0) == ':' |
f35d5bad | 278 | && SYMBOL_INTERNED_IN_INITIAL_OBARRAY_P (object)) |
cda9b832 DL |
279 | return Qt; |
280 | return Qnil; | |
281 | } | |
282 | ||
25638b07 | 283 | DEFUN ("vectorp", Fvectorp, Svectorp, 1, 1, 0, |
8c1a1077 | 284 | doc: /* Return t if OBJECT is a vector. */) |
5842a27b | 285 | (Lisp_Object object) |
7921925c | 286 | { |
39bcc759 | 287 | if (VECTORP (object)) |
7921925c JB |
288 | return Qt; |
289 | return Qnil; | |
290 | } | |
291 | ||
25638b07 | 292 | DEFUN ("stringp", Fstringp, Sstringp, 1, 1, 0, |
8c1a1077 | 293 | doc: /* Return t if OBJECT is a string. */) |
5842a27b | 294 | (Lisp_Object object) |
7921925c | 295 | { |
39bcc759 | 296 | if (STRINGP (object)) |
7921925c JB |
297 | return Qt; |
298 | return Qnil; | |
299 | } | |
300 | ||
25638b07 | 301 | DEFUN ("multibyte-string-p", Fmultibyte_string_p, Smultibyte_string_p, |
8c1a1077 PJ |
302 | 1, 1, 0, |
303 | doc: /* Return t if OBJECT is a multibyte string. */) | |
5842a27b | 304 | (Lisp_Object object) |
25638b07 RS |
305 | { |
306 | if (STRINGP (object) && STRING_MULTIBYTE (object)) | |
307 | return Qt; | |
308 | return Qnil; | |
309 | } | |
310 | ||
311 | DEFUN ("char-table-p", Fchar_table_p, Schar_table_p, 1, 1, 0, | |
8c1a1077 | 312 | doc: /* Return t if OBJECT is a char-table. */) |
5842a27b | 313 | (Lisp_Object object) |
4d276982 RS |
314 | { |
315 | if (CHAR_TABLE_P (object)) | |
316 | return Qt; | |
317 | return Qnil; | |
318 | } | |
319 | ||
7f0edce7 RS |
320 | DEFUN ("vector-or-char-table-p", Fvector_or_char_table_p, |
321 | Svector_or_char_table_p, 1, 1, 0, | |
8c1a1077 | 322 | doc: /* Return t if OBJECT is a char-table or vector. */) |
5842a27b | 323 | (Lisp_Object object) |
7f0edce7 RS |
324 | { |
325 | if (VECTORP (object) || CHAR_TABLE_P (object)) | |
326 | return Qt; | |
327 | return Qnil; | |
328 | } | |
329 | ||
8c1a1077 PJ |
330 | DEFUN ("bool-vector-p", Fbool_vector_p, Sbool_vector_p, 1, 1, 0, |
331 | doc: /* Return t if OBJECT is a bool-vector. */) | |
5842a27b | 332 | (Lisp_Object object) |
4d276982 RS |
333 | { |
334 | if (BOOL_VECTOR_P (object)) | |
335 | return Qt; | |
336 | return Qnil; | |
337 | } | |
338 | ||
8c1a1077 PJ |
339 | DEFUN ("arrayp", Farrayp, Sarrayp, 1, 1, 0, |
340 | doc: /* Return t if OBJECT is an array (string or vector). */) | |
5842a27b | 341 | (Lisp_Object object) |
7921925c | 342 | { |
0c64a8cd | 343 | if (ARRAYP (object)) |
7921925c JB |
344 | return Qt; |
345 | return Qnil; | |
346 | } | |
347 | ||
348 | DEFUN ("sequencep", Fsequencep, Ssequencep, 1, 1, 0, | |
8c1a1077 | 349 | doc: /* Return t if OBJECT is a sequence (list or array). */) |
5842a27b | 350 | (register Lisp_Object object) |
7921925c | 351 | { |
0c64a8cd | 352 | if (CONSP (object) || NILP (object) || ARRAYP (object)) |
7921925c JB |
353 | return Qt; |
354 | return Qnil; | |
355 | } | |
356 | ||
8c1a1077 PJ |
357 | DEFUN ("bufferp", Fbufferp, Sbufferp, 1, 1, 0, |
358 | doc: /* Return t if OBJECT is an editor buffer. */) | |
5842a27b | 359 | (Lisp_Object object) |
7921925c | 360 | { |
39bcc759 | 361 | if (BUFFERP (object)) |
7921925c JB |
362 | return Qt; |
363 | return Qnil; | |
364 | } | |
365 | ||
8c1a1077 PJ |
366 | DEFUN ("markerp", Fmarkerp, Smarkerp, 1, 1, 0, |
367 | doc: /* Return t if OBJECT is a marker (editor pointer). */) | |
5842a27b | 368 | (Lisp_Object object) |
7921925c | 369 | { |
39bcc759 | 370 | if (MARKERP (object)) |
7921925c JB |
371 | return Qt; |
372 | return Qnil; | |
373 | } | |
374 | ||
8c1a1077 PJ |
375 | DEFUN ("subrp", Fsubrp, Ssubrp, 1, 1, 0, |
376 | doc: /* Return t if OBJECT is a built-in function. */) | |
5842a27b | 377 | (Lisp_Object object) |
7921925c | 378 | { |
39bcc759 | 379 | if (SUBRP (object)) |
7921925c JB |
380 | return Qt; |
381 | return Qnil; | |
382 | } | |
383 | ||
dbc4e1c1 | 384 | DEFUN ("byte-code-function-p", Fbyte_code_function_p, Sbyte_code_function_p, |
8c1a1077 PJ |
385 | 1, 1, 0, |
386 | doc: /* Return t if OBJECT is a byte-compiled function object. */) | |
5842a27b | 387 | (Lisp_Object object) |
7921925c | 388 | { |
39bcc759 | 389 | if (COMPILEDP (object)) |
7921925c JB |
390 | return Qt; |
391 | return Qnil; | |
392 | } | |
393 | ||
0321d75c | 394 | DEFUN ("char-or-string-p", Fchar_or_string_p, Schar_or_string_p, 1, 1, 0, |
8637f5ee | 395 | doc: /* Return t if OBJECT is a character or a string. */) |
5842a27b | 396 | (register Lisp_Object object) |
7921925c | 397 | { |
cfd70f33 | 398 | if (CHARACTERP (object) || STRINGP (object)) |
7921925c JB |
399 | return Qt; |
400 | return Qnil; | |
401 | } | |
402 | \f | |
8c1a1077 PJ |
403 | DEFUN ("integerp", Fintegerp, Sintegerp, 1, 1, 0, |
404 | doc: /* Return t if OBJECT is an integer. */) | |
5842a27b | 405 | (Lisp_Object object) |
7921925c | 406 | { |
39bcc759 | 407 | if (INTEGERP (object)) |
7921925c JB |
408 | return Qt; |
409 | return Qnil; | |
410 | } | |
411 | ||
464f8898 | 412 | DEFUN ("integer-or-marker-p", Finteger_or_marker_p, Sinteger_or_marker_p, 1, 1, 0, |
8c1a1077 | 413 | doc: /* Return t if OBJECT is an integer or a marker (editor pointer). */) |
5842a27b | 414 | (register Lisp_Object object) |
7921925c | 415 | { |
39bcc759 | 416 | if (MARKERP (object) || INTEGERP (object)) |
7921925c JB |
417 | return Qt; |
418 | return Qnil; | |
419 | } | |
420 | ||
0321d75c | 421 | DEFUN ("natnump", Fnatnump, Snatnump, 1, 1, 0, |
8c1a1077 | 422 | doc: /* Return t if OBJECT is a nonnegative integer. */) |
5842a27b | 423 | (Lisp_Object object) |
7921925c | 424 | { |
39bcc759 | 425 | if (NATNUMP (object)) |
7921925c JB |
426 | return Qt; |
427 | return Qnil; | |
428 | } | |
429 | ||
430 | DEFUN ("numberp", Fnumberp, Snumberp, 1, 1, 0, | |
8c1a1077 | 431 | doc: /* Return t if OBJECT is a number (floating point or integer). */) |
5842a27b | 432 | (Lisp_Object object) |
7921925c | 433 | { |
39bcc759 | 434 | if (NUMBERP (object)) |
7921925c | 435 | return Qt; |
dbc4e1c1 JB |
436 | else |
437 | return Qnil; | |
7921925c JB |
438 | } |
439 | ||
440 | DEFUN ("number-or-marker-p", Fnumber_or_marker_p, | |
441 | Snumber_or_marker_p, 1, 1, 0, | |
8c1a1077 | 442 | doc: /* Return t if OBJECT is a number or a marker. */) |
5842a27b | 443 | (Lisp_Object object) |
7921925c | 444 | { |
39bcc759 | 445 | if (NUMBERP (object) || MARKERP (object)) |
7921925c JB |
446 | return Qt; |
447 | return Qnil; | |
448 | } | |
464f8898 | 449 | |
464f8898 | 450 | DEFUN ("floatp", Ffloatp, Sfloatp, 1, 1, 0, |
8c1a1077 | 451 | doc: /* Return t if OBJECT is a floating point number. */) |
5842a27b | 452 | (Lisp_Object object) |
464f8898 | 453 | { |
39bcc759 | 454 | if (FLOATP (object)) |
464f8898 RS |
455 | return Qt; |
456 | return Qnil; | |
457 | } | |
cc94f3b2 | 458 | |
7921925c JB |
459 | \f |
460 | /* Extract and set components of lists */ | |
461 | ||
a7ca3326 | 462 | DEFUN ("car", Fcar, Scar, 1, 1, 0, |
8c1a1077 | 463 | doc: /* Return the car of LIST. If arg is nil, return nil. |
9701c742 LT |
464 | Error if arg is not nil and not a cons cell. See also `car-safe'. |
465 | ||
da46c5be LT |
466 | See Info node `(elisp)Cons Cells' for a discussion of related basic |
467 | Lisp concepts such as car, cdr, cons cell and list. */) | |
5842a27b | 468 | (register Lisp_Object list) |
7921925c | 469 | { |
0c64a8cd | 470 | return CAR (list); |
7921925c JB |
471 | } |
472 | ||
a7ca3326 | 473 | DEFUN ("car-safe", Fcar_safe, Scar_safe, 1, 1, 0, |
8c1a1077 | 474 | doc: /* Return the car of OBJECT if it is a cons cell, or else nil. */) |
5842a27b | 475 | (Lisp_Object object) |
7921925c | 476 | { |
0c64a8cd | 477 | return CAR_SAFE (object); |
7921925c JB |
478 | } |
479 | ||
a7ca3326 | 480 | DEFUN ("cdr", Fcdr, Scdr, 1, 1, 0, |
8c1a1077 | 481 | doc: /* Return the cdr of LIST. If arg is nil, return nil. |
9701c742 LT |
482 | Error if arg is not nil and not a cons cell. See also `cdr-safe'. |
483 | ||
da46c5be LT |
484 | See Info node `(elisp)Cons Cells' for a discussion of related basic |
485 | Lisp concepts such as cdr, car, cons cell and list. */) | |
5842a27b | 486 | (register Lisp_Object list) |
7921925c | 487 | { |
0c64a8cd | 488 | return CDR (list); |
7921925c JB |
489 | } |
490 | ||
a7ca3326 | 491 | DEFUN ("cdr-safe", Fcdr_safe, Scdr_safe, 1, 1, 0, |
8c1a1077 | 492 | doc: /* Return the cdr of OBJECT if it is a cons cell, or else nil. */) |
5842a27b | 493 | (Lisp_Object object) |
7921925c | 494 | { |
0c64a8cd | 495 | return CDR_SAFE (object); |
7921925c JB |
496 | } |
497 | ||
a7ca3326 | 498 | DEFUN ("setcar", Fsetcar, Ssetcar, 2, 2, 0, |
8c1a1077 | 499 | doc: /* Set the car of CELL to be NEWCAR. Returns NEWCAR. */) |
5842a27b | 500 | (register Lisp_Object cell, Lisp_Object newcar) |
7921925c | 501 | { |
0c64a8cd | 502 | CHECK_CONS (cell); |
7921925c | 503 | CHECK_IMPURE (cell); |
f3fbd155 | 504 | XSETCAR (cell, newcar); |
7921925c JB |
505 | return newcar; |
506 | } | |
507 | ||
a7ca3326 | 508 | DEFUN ("setcdr", Fsetcdr, Ssetcdr, 2, 2, 0, |
8c1a1077 | 509 | doc: /* Set the cdr of CELL to be NEWCDR. Returns NEWCDR. */) |
5842a27b | 510 | (register Lisp_Object cell, Lisp_Object newcdr) |
7921925c | 511 | { |
0c64a8cd | 512 | CHECK_CONS (cell); |
7921925c | 513 | CHECK_IMPURE (cell); |
f3fbd155 | 514 | XSETCDR (cell, newcdr); |
7921925c JB |
515 | return newcdr; |
516 | } | |
517 | \f | |
518 | /* Extract and set components of symbols */ | |
519 | ||
a7ca3326 | 520 | DEFUN ("boundp", Fboundp, Sboundp, 1, 1, 0, |
8c1a1077 | 521 | doc: /* Return t if SYMBOL's value is not void. */) |
5842a27b | 522 | (register Lisp_Object symbol) |
7921925c JB |
523 | { |
524 | Lisp_Object valcontents; | |
ce5b453a | 525 | struct Lisp_Symbol *sym; |
b7826503 | 526 | CHECK_SYMBOL (symbol); |
ce5b453a | 527 | sym = XSYMBOL (symbol); |
7921925c | 528 | |
ce5b453a SM |
529 | start: |
530 | switch (sym->redirect) | |
531 | { | |
532 | case SYMBOL_PLAINVAL: valcontents = SYMBOL_VAL (sym); break; | |
533 | case SYMBOL_VARALIAS: sym = indirect_variable (sym); goto start; | |
534 | case SYMBOL_LOCALIZED: | |
535 | { | |
536 | struct Lisp_Buffer_Local_Value *blv = SYMBOL_BLV (sym); | |
537 | if (blv->fwd) | |
538 | /* In set_internal, we un-forward vars when their value is | |
539 | set to Qunbound. */ | |
540 | return Qt; | |
541 | else | |
542 | { | |
543 | swap_in_symval_forwarding (sym, blv); | |
544 | valcontents = BLV_VALUE (blv); | |
545 | } | |
546 | break; | |
547 | } | |
548 | case SYMBOL_FORWARDED: | |
549 | /* In set_internal, we un-forward vars when their value is | |
550 | set to Qunbound. */ | |
551 | return Qt; | |
552 | default: abort (); | |
553 | } | |
7921925c | 554 | |
1bfcade3 | 555 | return (EQ (valcontents, Qunbound) ? Qnil : Qt); |
7921925c JB |
556 | } |
557 | ||
a7ca3326 | 558 | DEFUN ("fboundp", Ffboundp, Sfboundp, 1, 1, 0, |
8c1a1077 | 559 | doc: /* Return t if SYMBOL's function definition is not void. */) |
5842a27b | 560 | (register Lisp_Object symbol) |
7921925c | 561 | { |
b7826503 | 562 | CHECK_SYMBOL (symbol); |
d9c2a0f2 | 563 | return (EQ (XSYMBOL (symbol)->function, Qunbound) ? Qnil : Qt); |
7921925c JB |
564 | } |
565 | ||
8c1a1077 | 566 | DEFUN ("makunbound", Fmakunbound, Smakunbound, 1, 1, 0, |
bfb96cb7 FP |
567 | doc: /* Make SYMBOL's value be void. |
568 | Return SYMBOL. */) | |
5842a27b | 569 | (register Lisp_Object symbol) |
7921925c | 570 | { |
b7826503 | 571 | CHECK_SYMBOL (symbol); |
64ec26d6 | 572 | if (SYMBOL_CONSTANT_P (symbol)) |
740ef0b5 | 573 | xsignal1 (Qsetting_constant, symbol); |
d9c2a0f2 EN |
574 | Fset (symbol, Qunbound); |
575 | return symbol; | |
7921925c JB |
576 | } |
577 | ||
8c1a1077 | 578 | DEFUN ("fmakunbound", Ffmakunbound, Sfmakunbound, 1, 1, 0, |
bfb96cb7 FP |
579 | doc: /* Make SYMBOL's function definition be void. |
580 | Return SYMBOL. */) | |
5842a27b | 581 | (register Lisp_Object symbol) |
7921925c | 582 | { |
b7826503 | 583 | CHECK_SYMBOL (symbol); |
d9c2a0f2 | 584 | if (NILP (symbol) || EQ (symbol, Qt)) |
740ef0b5 | 585 | xsignal1 (Qsetting_constant, symbol); |
d9c2a0f2 EN |
586 | XSYMBOL (symbol)->function = Qunbound; |
587 | return symbol; | |
7921925c JB |
588 | } |
589 | ||
a7ca3326 | 590 | DEFUN ("symbol-function", Fsymbol_function, Ssymbol_function, 1, 1, 0, |
8c1a1077 | 591 | doc: /* Return SYMBOL's function definition. Error if that is void. */) |
5842a27b | 592 | (register Lisp_Object symbol) |
7921925c | 593 | { |
b7826503 | 594 | CHECK_SYMBOL (symbol); |
740ef0b5 KS |
595 | if (!EQ (XSYMBOL (symbol)->function, Qunbound)) |
596 | return XSYMBOL (symbol)->function; | |
597 | xsignal1 (Qvoid_function, symbol); | |
7921925c JB |
598 | } |
599 | ||
8c1a1077 PJ |
600 | DEFUN ("symbol-plist", Fsymbol_plist, Ssymbol_plist, 1, 1, 0, |
601 | doc: /* Return SYMBOL's property list. */) | |
5842a27b | 602 | (register Lisp_Object symbol) |
7921925c | 603 | { |
b7826503 | 604 | CHECK_SYMBOL (symbol); |
d9c2a0f2 | 605 | return XSYMBOL (symbol)->plist; |
7921925c JB |
606 | } |
607 | ||
a7ca3326 | 608 | DEFUN ("symbol-name", Fsymbol_name, Ssymbol_name, 1, 1, 0, |
8c1a1077 | 609 | doc: /* Return SYMBOL's name, a string. */) |
5842a27b | 610 | (register Lisp_Object symbol) |
7921925c JB |
611 | { |
612 | register Lisp_Object name; | |
613 | ||
b7826503 | 614 | CHECK_SYMBOL (symbol); |
84023177 | 615 | name = SYMBOL_NAME (symbol); |
7921925c JB |
616 | return name; |
617 | } | |
618 | ||
a7ca3326 | 619 | DEFUN ("fset", Ffset, Sfset, 2, 2, 0, |
8c1a1077 | 620 | doc: /* Set SYMBOL's function definition to DEFINITION, and return DEFINITION. */) |
5842a27b | 621 | (register Lisp_Object symbol, Lisp_Object definition) |
d9c2a0f2 | 622 | { |
764ea377 JB |
623 | register Lisp_Object function; |
624 | ||
b7826503 | 625 | CHECK_SYMBOL (symbol); |
d9c2a0f2 | 626 | if (NILP (symbol) || EQ (symbol, Qt)) |
740ef0b5 | 627 | xsignal1 (Qsetting_constant, symbol); |
764ea377 JB |
628 | |
629 | function = XSYMBOL (symbol)->function; | |
630 | ||
631 | if (!NILP (Vautoload_queue) && !EQ (function, Qunbound)) | |
632 | Vautoload_queue = Fcons (Fcons (symbol, function), Vautoload_queue); | |
633 | ||
634 | if (CONSP (function) && EQ (XCAR (function), Qautoload)) | |
635 | Fput (symbol, Qautoload, XCDR (function)); | |
636 | ||
8c0b5540 | 637 | XSYMBOL (symbol)->function = definition; |
f845f2c9 | 638 | /* Handle automatic advice activation */ |
d9c2a0f2 | 639 | if (CONSP (XSYMBOL (symbol)->plist) && !NILP (Fget (symbol, Qad_advice_info))) |
f845f2c9 | 640 | { |
c1307a23 | 641 | call2 (Qad_activate_internal, symbol, Qnil); |
8c0b5540 | 642 | definition = XSYMBOL (symbol)->function; |
f845f2c9 | 643 | } |
8c0b5540 | 644 | return definition; |
7921925c JB |
645 | } |
646 | ||
d2fde41d | 647 | DEFUN ("defalias", Fdefalias, Sdefalias, 2, 3, 0, |
8c1a1077 | 648 | doc: /* Set SYMBOL's function definition to DEFINITION, and return DEFINITION. |
96143227 RS |
649 | Associates the function with the current load file, if any. |
650 | The optional third argument DOCSTRING specifies the documentation string | |
651 | for SYMBOL; if it is omitted or nil, SYMBOL uses the documentation string | |
652 | determined by DEFINITION. */) | |
5842a27b | 653 | (register Lisp_Object symbol, Lisp_Object definition, Lisp_Object docstring) |
fc08c367 | 654 | { |
8a658a52 | 655 | CHECK_SYMBOL (symbol); |
894f6538 RS |
656 | if (CONSP (XSYMBOL (symbol)->function) |
657 | && EQ (XCAR (XSYMBOL (symbol)->function), Qautoload)) | |
658 | LOADHIST_ATTACH (Fcons (Qt, symbol)); | |
32f532b7 | 659 | definition = Ffset (symbol, definition); |
62a29071 | 660 | LOADHIST_ATTACH (Fcons (Qdefun, symbol)); |
d2fde41d SM |
661 | if (!NILP (docstring)) |
662 | Fput (symbol, Qfunction_documentation, docstring); | |
73e0d965 | 663 | return definition; |
fc08c367 RS |
664 | } |
665 | ||
7921925c | 666 | DEFUN ("setplist", Fsetplist, Ssetplist, 2, 2, 0, |
6b61353c | 667 | doc: /* Set SYMBOL's property list to NEWPLIST, and return NEWPLIST. */) |
5842a27b | 668 | (register Lisp_Object symbol, Lisp_Object newplist) |
7921925c | 669 | { |
b7826503 | 670 | CHECK_SYMBOL (symbol); |
d9c2a0f2 | 671 | XSYMBOL (symbol)->plist = newplist; |
7921925c JB |
672 | return newplist; |
673 | } | |
ffd56f97 | 674 | |
6f0e897f | 675 | DEFUN ("subr-arity", Fsubr_arity, Ssubr_arity, 1, 1, 0, |
8c1a1077 PJ |
676 | doc: /* Return minimum and maximum number of args allowed for SUBR. |
677 | SUBR must be a built-in function. | |
678 | The returned value is a pair (MIN . MAX). MIN is the minimum number | |
679 | of args. MAX is the maximum number or the symbol `many', for a | |
680 | function with `&rest' args, or `unevalled' for a special form. */) | |
5842a27b | 681 | (Lisp_Object subr) |
6f0e897f DL |
682 | { |
683 | short minargs, maxargs; | |
0c64a8cd | 684 | CHECK_SUBR (subr); |
6f0e897f DL |
685 | minargs = XSUBR (subr)->min_args; |
686 | maxargs = XSUBR (subr)->max_args; | |
687 | if (maxargs == MANY) | |
688 | return Fcons (make_number (minargs), Qmany); | |
689 | else if (maxargs == UNEVALLED) | |
690 | return Fcons (make_number (minargs), Qunevalled); | |
691 | else | |
692 | return Fcons (make_number (minargs), make_number (maxargs)); | |
693 | } | |
694 | ||
0fddae66 SM |
695 | DEFUN ("subr-name", Fsubr_name, Ssubr_name, 1, 1, 0, |
696 | doc: /* Return name of subroutine SUBR. | |
697 | SUBR must be a built-in function. */) | |
5842a27b | 698 | (Lisp_Object subr) |
0fddae66 SM |
699 | { |
700 | const char *name; | |
0c64a8cd | 701 | CHECK_SUBR (subr); |
0fddae66 | 702 | name = XSUBR (subr)->symbol_name; |
f3e92b69 | 703 | return build_string (name); |
0fddae66 SM |
704 | } |
705 | ||
a7ca3326 | 706 | DEFUN ("interactive-form", Finteractive_form, Sinteractive_form, 1, 1, 0, |
6b61353c | 707 | doc: /* Return the interactive form of CMD or nil if none. |
df133612 LT |
708 | If CMD is not a command, the return value is nil. |
709 | Value, if non-nil, is a list \(interactive SPEC). */) | |
5842a27b | 710 | (Lisp_Object cmd) |
cc515226 | 711 | { |
c4f46926 | 712 | Lisp_Object fun = indirect_function (cmd); /* Check cycles. */ |
764ea377 | 713 | |
c4f46926 SM |
714 | if (NILP (fun) || EQ (fun, Qunbound)) |
715 | return Qnil; | |
716 | ||
717 | /* Use an `interactive-form' property if present, analogous to the | |
718 | function-documentation property. */ | |
719 | fun = cmd; | |
720 | while (SYMBOLP (fun)) | |
721 | { | |
3860280a | 722 | Lisp_Object tmp = Fget (fun, Qinteractive_form); |
c4f46926 SM |
723 | if (!NILP (tmp)) |
724 | return tmp; | |
725 | else | |
726 | fun = Fsymbol_function (fun); | |
727 | } | |
6b61353c KH |
728 | |
729 | if (SUBRP (fun)) | |
730 | { | |
eec47d6b | 731 | const char *spec = XSUBR (fun)->intspec; |
8a6d230a MC |
732 | if (spec) |
733 | return list2 (Qinteractive, | |
734 | (*spec != '(') ? build_string (spec) : | |
735 | Fcar (Fread_from_string (build_string (spec), Qnil, Qnil))); | |
6b61353c KH |
736 | } |
737 | else if (COMPILEDP (fun)) | |
738 | { | |
739 | if ((ASIZE (fun) & PSEUDOVECTOR_SIZE_MASK) > COMPILED_INTERACTIVE) | |
740 | return list2 (Qinteractive, AREF (fun, COMPILED_INTERACTIVE)); | |
741 | } | |
742 | else if (CONSP (fun)) | |
743 | { | |
744 | Lisp_Object funcar = XCAR (fun); | |
b38b1ec0 | 745 | if (EQ (funcar, Qclosure)) |
23aba0ea SM |
746 | return Fassq (Qinteractive, Fcdr (Fcdr (XCDR (fun)))); |
747 | else if (EQ (funcar, Qlambda)) | |
6b61353c KH |
748 | return Fassq (Qinteractive, Fcdr (XCDR (fun))); |
749 | else if (EQ (funcar, Qautoload)) | |
750 | { | |
751 | struct gcpro gcpro1; | |
752 | GCPRO1 (cmd); | |
753 | do_autoload (fun, cmd); | |
754 | UNGCPRO; | |
755 | return Finteractive_form (cmd); | |
756 | } | |
757 | } | |
cc515226 GM |
758 | return Qnil; |
759 | } | |
760 | ||
7921925c | 761 | \f |
f35d5bad GM |
762 | /*********************************************************************** |
763 | Getting and Setting Values of Symbols | |
764 | ***********************************************************************/ | |
765 | ||
766 | /* Return the symbol holding SYMBOL's value. Signal | |
767 | `cyclic-variable-indirection' if SYMBOL's chain of variable | |
768 | indirections contains a loop. */ | |
769 | ||
ad97b375 | 770 | struct Lisp_Symbol * |
971de7fb | 771 | indirect_variable (struct Lisp_Symbol *symbol) |
f35d5bad | 772 | { |
ad97b375 | 773 | struct Lisp_Symbol *tortoise, *hare; |
f35d5bad GM |
774 | |
775 | hare = tortoise = symbol; | |
776 | ||
ce5b453a | 777 | while (hare->redirect == SYMBOL_VARALIAS) |
f35d5bad | 778 | { |
ce5b453a SM |
779 | hare = SYMBOL_ALIAS (hare); |
780 | if (hare->redirect != SYMBOL_VARALIAS) | |
f35d5bad | 781 | break; |
bfb96cb7 | 782 | |
ce5b453a SM |
783 | hare = SYMBOL_ALIAS (hare); |
784 | tortoise = SYMBOL_ALIAS (tortoise); | |
f35d5bad | 785 | |
ad97b375 SM |
786 | if (hare == tortoise) |
787 | { | |
788 | Lisp_Object tem; | |
789 | XSETSYMBOL (tem, symbol); | |
790 | xsignal1 (Qcyclic_variable_indirection, tem); | |
791 | } | |
f35d5bad GM |
792 | } |
793 | ||
794 | return hare; | |
795 | } | |
796 | ||
797 | ||
798 | DEFUN ("indirect-variable", Findirect_variable, Sindirect_variable, 1, 1, 0, | |
8c1a1077 PJ |
799 | doc: /* Return the variable at the end of OBJECT's variable chain. |
800 | If OBJECT is a symbol, follow all variable indirections and return the final | |
801 | variable. If OBJECT is not a symbol, just return it. | |
802 | Signal a cyclic-variable-indirection error if there is a loop in the | |
803 | variable chain of symbols. */) | |
5842a27b | 804 | (Lisp_Object object) |
f35d5bad GM |
805 | { |
806 | if (SYMBOLP (object)) | |
946f9a5b PE |
807 | { |
808 | struct Lisp_Symbol *sym = indirect_variable (XSYMBOL (object)); | |
809 | XSETSYMBOL (object, sym); | |
810 | } | |
f35d5bad GM |
811 | return object; |
812 | } | |
813 | ||
7921925c JB |
814 | |
815 | /* Given the raw contents of a symbol value cell, | |
816 | return the Lisp value of the symbol. | |
817 | This does not handle buffer-local variables; use | |
818 | swap_in_symval_forwarding for that. */ | |
819 | ||
820 | Lisp_Object | |
971de7fb | 821 | do_symval_forwarding (register union Lisp_Fwd *valcontents) |
7921925c JB |
822 | { |
823 | register Lisp_Object val; | |
ce5b453a SM |
824 | switch (XFWDTYPE (valcontents)) |
825 | { | |
826 | case Lisp_Fwd_Int: | |
827 | XSETINT (val, *XINTFWD (valcontents)->intvar); | |
828 | return val; | |
829 | ||
830 | case Lisp_Fwd_Bool: | |
831 | return (*XBOOLFWD (valcontents)->boolvar ? Qt : Qnil); | |
832 | ||
833 | case Lisp_Fwd_Obj: | |
834 | return *XOBJFWD (valcontents)->objvar; | |
835 | ||
836 | case Lisp_Fwd_Buffer_Obj: | |
837 | return PER_BUFFER_VALUE (current_buffer, | |
838 | XBUFFER_OBJFWD (valcontents)->offset); | |
839 | ||
840 | case Lisp_Fwd_Kboard_Obj: | |
841 | /* We used to simply use current_kboard here, but from Lisp | |
a98edce9 | 842 | code, its value is often unexpected. It seems nicer to |
ce5b453a SM |
843 | allow constructions like this to work as intuitively expected: |
844 | ||
845 | (with-selected-frame frame | |
846 | (define-key local-function-map "\eOP" [f1])) | |
847 | ||
848 | On the other hand, this affects the semantics of | |
849 | last-command and real-last-command, and people may rely on | |
850 | that. I took a quick look at the Lisp codebase, and I | |
851 | don't think anything will break. --lorentey */ | |
852 | return *(Lisp_Object *)(XKBOARD_OBJFWD (valcontents)->offset | |
853 | + (char *)FRAME_KBOARD (SELECTED_FRAME ())); | |
854 | default: abort (); | |
855 | } | |
7921925c JB |
856 | } |
857 | ||
d9c2a0f2 EN |
858 | /* Store NEWVAL into SYMBOL, where VALCONTENTS is found in the value cell |
859 | of SYMBOL. If SYMBOL is buffer-local, VALCONTENTS should be the | |
7921925c | 860 | buffer-independent contents of the value cell: forwarded just one |
7a283f36 GM |
861 | step past the buffer-localness. |
862 | ||
863 | BUF non-zero means set the value in buffer BUF instead of the | |
864 | current buffer. This only plays a role for per-buffer variables. */ | |
7921925c | 865 | |
ce5b453a | 866 | static void |
971de7fb | 867 | store_symval_forwarding (union Lisp_Fwd *valcontents, register Lisp_Object newval, struct buffer *buf) |
7921925c | 868 | { |
ce5b453a | 869 | switch (XFWDTYPE (valcontents)) |
7921925c | 870 | { |
ce5b453a SM |
871 | case Lisp_Fwd_Int: |
872 | CHECK_NUMBER (newval); | |
873 | *XINTFWD (valcontents)->intvar = XINT (newval); | |
874 | break; | |
aa3830c4 | 875 | |
ce5b453a SM |
876 | case Lisp_Fwd_Bool: |
877 | *XBOOLFWD (valcontents)->boolvar = !NILP (newval); | |
878 | break; | |
aa3830c4 | 879 | |
ce5b453a SM |
880 | case Lisp_Fwd_Obj: |
881 | *XOBJFWD (valcontents)->objvar = newval; | |
aa3830c4 | 882 | |
ce5b453a SM |
883 | /* If this variable is a default for something stored |
884 | in the buffer itself, such as default-fill-column, | |
885 | find the buffers that don't have local values for it | |
886 | and update them. */ | |
887 | if (XOBJFWD (valcontents)->objvar > (Lisp_Object *) &buffer_defaults | |
888 | && XOBJFWD (valcontents)->objvar < (Lisp_Object *) (&buffer_defaults + 1)) | |
46b2ac21 | 889 | { |
ce5b453a SM |
890 | int offset = ((char *) XOBJFWD (valcontents)->objvar |
891 | - (char *) &buffer_defaults); | |
892 | int idx = PER_BUFFER_IDX (offset); | |
aa3830c4 | 893 | |
ce5b453a | 894 | Lisp_Object tail; |
aa3830c4 | 895 | |
ce5b453a SM |
896 | if (idx <= 0) |
897 | break; | |
aa3830c4 | 898 | |
ce5b453a | 899 | for (tail = Vbuffer_alist; CONSP (tail); tail = XCDR (tail)) |
6b61353c | 900 | { |
b9b84fa9 | 901 | Lisp_Object lbuf; |
ce5b453a | 902 | struct buffer *b; |
6b61353c | 903 | |
b9b84fa9 PE |
904 | lbuf = Fcdr (XCAR (tail)); |
905 | if (!BUFFERP (lbuf)) continue; | |
906 | b = XBUFFER (lbuf); | |
6b61353c | 907 | |
ce5b453a SM |
908 | if (! PER_BUFFER_VALUE_P (b, idx)) |
909 | PER_BUFFER_VALUE (b, offset) = newval; | |
6b61353c | 910 | } |
ce5b453a SM |
911 | } |
912 | break; | |
7403b5c8 | 913 | |
ce5b453a SM |
914 | case Lisp_Fwd_Buffer_Obj: |
915 | { | |
916 | int offset = XBUFFER_OBJFWD (valcontents)->offset; | |
917 | Lisp_Object type = XBUFFER_OBJFWD (valcontents)->slottype; | |
918 | ||
919 | if (!(NILP (type) || NILP (newval) | |
920 | || (XINT (type) == LISP_INT_TAG | |
921 | ? INTEGERP (newval) | |
922 | : XTYPE (newval) == XINT (type)))) | |
923 | buffer_slot_type_mismatch (newval, XINT (type)); | |
924 | ||
925 | if (buf == NULL) | |
926 | buf = current_buffer; | |
927 | PER_BUFFER_VALUE (buf, offset) = newval; | |
928 | } | |
929 | break; | |
7403b5c8 | 930 | |
ce5b453a SM |
931 | case Lisp_Fwd_Kboard_Obj: |
932 | { | |
933 | char *base = (char *) FRAME_KBOARD (SELECTED_FRAME ()); | |
934 | char *p = base + XKBOARD_OBJFWD (valcontents)->offset; | |
935 | *(Lisp_Object *) p = newval; | |
936 | } | |
7921925c JB |
937 | break; |
938 | ||
7921925c | 939 | default: |
ce5b453a | 940 | abort (); /* goto def; */ |
7921925c JB |
941 | } |
942 | } | |
943 | ||
b0d53add GM |
944 | /* Set up SYMBOL to refer to its global binding. |
945 | This makes it safe to alter the status of other bindings. */ | |
946 | ||
947 | void | |
971de7fb | 948 | swap_in_global_binding (struct Lisp_Symbol *symbol) |
b0d53add | 949 | { |
ce5b453a | 950 | struct Lisp_Buffer_Local_Value *blv = SYMBOL_BLV (symbol); |
b0d53add GM |
951 | |
952 | /* Unload the previously loaded binding. */ | |
ce5b453a SM |
953 | if (blv->fwd) |
954 | SET_BLV_VALUE (blv, do_symval_forwarding (blv->fwd)); | |
bfb96cb7 | 955 | |
b0d53add | 956 | /* Select the global binding in the symbol. */ |
ce5b453a SM |
957 | blv->valcell = blv->defcell; |
958 | if (blv->fwd) | |
959 | store_symval_forwarding (blv->fwd, XCDR (blv->defcell), NULL); | |
b0d53add GM |
960 | |
961 | /* Indicate that the global binding is set up now. */ | |
ce5b453a SM |
962 | blv->where = Qnil; |
963 | SET_BLV_FOUND (blv, 0); | |
b0d53add GM |
964 | } |
965 | ||
2829d05f | 966 | /* Set up the buffer-local symbol SYMBOL for validity in the current buffer. |
42e975f0 RS |
967 | VALCONTENTS is the contents of its value cell, |
968 | which points to a struct Lisp_Buffer_Local_Value. | |
969 | ||
970 | Return the value forwarded one step past the buffer-local stage. | |
971 | This could be another forwarding pointer. */ | |
7921925c | 972 | |
ce5b453a | 973 | static void |
971de7fb | 974 | swap_in_symval_forwarding (struct Lisp_Symbol *symbol, struct Lisp_Buffer_Local_Value *blv) |
7921925c | 975 | { |
7921925c | 976 | register Lisp_Object tem1; |
bfb96cb7 | 977 | |
ce5b453a SM |
978 | eassert (blv == SYMBOL_BLV (symbol)); |
979 | ||
980 | tem1 = blv->where; | |
7921925c | 981 | |
42e975f0 | 982 | if (NILP (tem1) |
ce5b453a SM |
983 | || (blv->frame_local |
984 | ? !EQ (selected_frame, tem1) | |
985 | : current_buffer != XBUFFER (tem1))) | |
7921925c | 986 | { |
bfb96cb7 | 987 | |
42e975f0 | 988 | /* Unload the previously loaded binding. */ |
ce5b453a SM |
989 | tem1 = blv->valcell; |
990 | if (blv->fwd) | |
991 | SET_BLV_VALUE (blv, do_symval_forwarding (blv->fwd)); | |
42e975f0 | 992 | /* Choose the new binding. */ |
ce5b453a SM |
993 | { |
994 | Lisp_Object var; | |
995 | XSETSYMBOL (var, symbol); | |
996 | if (blv->frame_local) | |
997 | { | |
998 | tem1 = assq_no_quit (var, XFRAME (selected_frame)->param_alist); | |
999 | blv->where = selected_frame; | |
1000 | } | |
1001 | else | |
1002 | { | |
4b4deea2 | 1003 | tem1 = assq_no_quit (var, BVAR (current_buffer, local_var_alist)); |
ce5b453a SM |
1004 | XSETBUFFER (blv->where, current_buffer); |
1005 | } | |
1006 | } | |
1007 | if (!(blv->found = !NILP (tem1))) | |
1008 | tem1 = blv->defcell; | |
b0c2d1c6 | 1009 | |
42e975f0 | 1010 | /* Load the new binding. */ |
ce5b453a SM |
1011 | blv->valcell = tem1; |
1012 | if (blv->fwd) | |
1013 | store_symval_forwarding (blv->fwd, BLV_VALUE (blv), NULL); | |
7921925c | 1014 | } |
7921925c JB |
1015 | } |
1016 | \f | |
14e76af9 JB |
1017 | /* Find the value of a symbol, returning Qunbound if it's not bound. |
1018 | This is helpful for code which just wants to get a variable's value | |
8e6208c5 | 1019 | if it has one, without signaling an error. |
14e76af9 JB |
1020 | Note that it must not be possible to quit |
1021 | within this function. Great care is required for this. */ | |
7921925c | 1022 | |
14e76af9 | 1023 | Lisp_Object |
971de7fb | 1024 | find_symbol_value (Lisp_Object symbol) |
7921925c | 1025 | { |
ce5b453a | 1026 | struct Lisp_Symbol *sym; |
bfb96cb7 | 1027 | |
b7826503 | 1028 | CHECK_SYMBOL (symbol); |
ce5b453a | 1029 | sym = XSYMBOL (symbol); |
7921925c | 1030 | |
ce5b453a SM |
1031 | start: |
1032 | switch (sym->redirect) | |
1033 | { | |
1034 | case SYMBOL_VARALIAS: sym = indirect_variable (sym); goto start; | |
1035 | case SYMBOL_PLAINVAL: return SYMBOL_VAL (sym); | |
1036 | case SYMBOL_LOCALIZED: | |
1037 | { | |
1038 | struct Lisp_Buffer_Local_Value *blv = SYMBOL_BLV (sym); | |
1039 | swap_in_symval_forwarding (sym, blv); | |
1040 | return blv->fwd ? do_symval_forwarding (blv->fwd) : BLV_VALUE (blv); | |
1041 | } | |
1042 | /* FALLTHROUGH */ | |
1043 | case SYMBOL_FORWARDED: | |
1044 | return do_symval_forwarding (SYMBOL_FWD (sym)); | |
1045 | default: abort (); | |
1046 | } | |
7921925c JB |
1047 | } |
1048 | ||
a7ca3326 | 1049 | DEFUN ("symbol-value", Fsymbol_value, Ssymbol_value, 1, 1, 0, |
8c1a1077 | 1050 | doc: /* Return SYMBOL's value. Error if that is void. */) |
5842a27b | 1051 | (Lisp_Object symbol) |
14e76af9 | 1052 | { |
0671d7c0 | 1053 | Lisp_Object val; |
14e76af9 | 1054 | |
d9c2a0f2 | 1055 | val = find_symbol_value (symbol); |
740ef0b5 | 1056 | if (!EQ (val, Qunbound)) |
14e76af9 | 1057 | return val; |
740ef0b5 KS |
1058 | |
1059 | xsignal1 (Qvoid_variable, symbol); | |
14e76af9 JB |
1060 | } |
1061 | ||
a7ca3326 | 1062 | DEFUN ("set", Fset, Sset, 2, 2, 0, |
8c1a1077 | 1063 | doc: /* Set SYMBOL's value to NEWVAL, and return NEWVAL. */) |
5842a27b | 1064 | (register Lisp_Object symbol, Lisp_Object newval) |
05ef7169 | 1065 | { |
94b612ad | 1066 | set_internal (symbol, newval, Qnil, 0); |
ce5b453a | 1067 | return newval; |
05ef7169 RS |
1068 | } |
1069 | ||
1f35ce36 RS |
1070 | /* Return 1 if SYMBOL currently has a let-binding |
1071 | which was made in the buffer that is now current. */ | |
1072 | ||
1073 | static int | |
ce5b453a | 1074 | let_shadows_buffer_binding_p (struct Lisp_Symbol *symbol) |
1f35ce36 | 1075 | { |
ce5b453a | 1076 | struct specbinding *p; |
1f35ce36 RS |
1077 | |
1078 | for (p = specpdl_ptr - 1; p >= specpdl; p--) | |
f35d5bad GM |
1079 | if (p->func == NULL |
1080 | && CONSP (p->symbol)) | |
1081 | { | |
ad97b375 | 1082 | struct Lisp_Symbol *let_bound_symbol = XSYMBOL (XCAR (p->symbol)); |
ce5b453a SM |
1083 | eassert (let_bound_symbol->redirect != SYMBOL_VARALIAS); |
1084 | if (symbol == let_bound_symbol | |
f35d5bad GM |
1085 | && XBUFFER (XCDR (XCDR (p->symbol))) == current_buffer) |
1086 | break; | |
1087 | } | |
1f35ce36 | 1088 | |
f35d5bad | 1089 | return p >= specpdl; |
1f35ce36 RS |
1090 | } |
1091 | ||
ce5b453a | 1092 | static int |
971de7fb | 1093 | let_shadows_global_binding_p (Lisp_Object symbol) |
ce5b453a SM |
1094 | { |
1095 | struct specbinding *p; | |
1096 | ||
1097 | for (p = specpdl_ptr - 1; p >= specpdl; p--) | |
1098 | if (p->func == NULL && EQ (p->symbol, symbol)) | |
1099 | break; | |
1100 | ||
1101 | return p >= specpdl; | |
1102 | } | |
1103 | ||
25638b07 | 1104 | /* Store the value NEWVAL into SYMBOL. |
94b612ad SM |
1105 | If buffer/frame-locality is an issue, WHERE specifies which context to use. |
1106 | (nil stands for the current buffer/frame). | |
2829d05f | 1107 | |
05ef7169 RS |
1108 | If BINDFLAG is zero, then if this symbol is supposed to become |
1109 | local in every buffer where it is set, then we make it local. | |
1110 | If BINDFLAG is nonzero, we don't do that. */ | |
1111 | ||
ce5b453a | 1112 | void |
971de7fb | 1113 | set_internal (register Lisp_Object symbol, register Lisp_Object newval, register Lisp_Object where, int bindflag) |
7921925c | 1114 | { |
1bfcade3 | 1115 | int voide = EQ (newval, Qunbound); |
ce5b453a SM |
1116 | struct Lisp_Symbol *sym; |
1117 | Lisp_Object tem1; | |
7921925c | 1118 | |
2829d05f | 1119 | /* If restoring in a dead buffer, do nothing. */ |
94b612ad SM |
1120 | /* if (BUFFERP (where) && NILP (XBUFFER (where)->name)) |
1121 | return; */ | |
2829d05f | 1122 | |
b7826503 | 1123 | CHECK_SYMBOL (symbol); |
ce5b453a | 1124 | if (SYMBOL_CONSTANT_P (symbol)) |
7921925c | 1125 | { |
ce5b453a SM |
1126 | if (NILP (Fkeywordp (symbol)) |
1127 | || !EQ (newval, Fsymbol_value (symbol))) | |
1128 | xsignal1 (Qsetting_constant, symbol); | |
1129 | else | |
1130 | /* Allow setting keywords to their own value. */ | |
1131 | return; | |
7921925c | 1132 | } |
42e975f0 | 1133 | |
ce5b453a | 1134 | sym = XSYMBOL (symbol); |
7921925c | 1135 | |
ce5b453a SM |
1136 | start: |
1137 | switch (sym->redirect) | |
1138 | { | |
1139 | case SYMBOL_VARALIAS: sym = indirect_variable (sym); goto start; | |
1140 | case SYMBOL_PLAINVAL: SET_SYMBOL_VAL (sym , newval); return; | |
1141 | case SYMBOL_LOCALIZED: | |
1142 | { | |
1143 | struct Lisp_Buffer_Local_Value *blv = SYMBOL_BLV (sym); | |
94b612ad SM |
1144 | if (NILP (where)) |
1145 | { | |
1146 | if (blv->frame_local) | |
1147 | where = selected_frame; | |
1148 | else | |
1149 | XSETBUFFER (where, current_buffer); | |
1150 | } | |
ce5b453a SM |
1151 | /* If the current buffer is not the buffer whose binding is |
1152 | loaded, or if there may be frame-local bindings and the frame | |
1153 | isn't the right one, or if it's a Lisp_Buffer_Local_Value and | |
1154 | the default binding is loaded, the loaded binding may be the | |
1155 | wrong one. */ | |
94b612ad | 1156 | if (!EQ (blv->where, where) |
ce5b453a SM |
1157 | /* Also unload a global binding (if the var is local_if_set). */ |
1158 | || (EQ (blv->valcell, blv->defcell))) | |
1159 | { | |
1160 | /* The currently loaded binding is not necessarily valid. | |
1161 | We need to unload it, and choose a new binding. */ | |
1162 | ||
1163 | /* Write out `realvalue' to the old loaded binding. */ | |
1164 | if (blv->fwd) | |
1165 | SET_BLV_VALUE (blv, do_symval_forwarding (blv->fwd)); | |
b0c2d1c6 | 1166 | |
ce5b453a | 1167 | /* Find the new binding. */ |
94b612ad SM |
1168 | XSETSYMBOL (symbol, sym); /* May have changed via aliasing. */ |
1169 | tem1 = Fassq (symbol, | |
1170 | (blv->frame_local | |
1171 | ? XFRAME (where)->param_alist | |
4b4deea2 | 1172 | : BVAR (XBUFFER (where), local_var_alist))); |
94b612ad | 1173 | blv->where = where; |
ce5b453a SM |
1174 | blv->found = 1; |
1175 | ||
1176 | if (NILP (tem1)) | |
1177 | { | |
1178 | /* This buffer still sees the default value. */ | |
1179 | ||
1180 | /* If the variable is a Lisp_Some_Buffer_Local_Value, | |
1181 | or if this is `let' rather than `set', | |
1182 | make CURRENT-ALIST-ELEMENT point to itself, | |
1183 | indicating that we're seeing the default value. | |
1184 | Likewise if the variable has been let-bound | |
1185 | in the current buffer. */ | |
1186 | if (bindflag || !blv->local_if_set | |
1187 | || let_shadows_buffer_binding_p (sym)) | |
1188 | { | |
1189 | blv->found = 0; | |
1190 | tem1 = blv->defcell; | |
1191 | } | |
1192 | /* If it's a local_if_set, being set not bound, | |
1193 | and we're not within a let that was made for this buffer, | |
1194 | create a new buffer-local binding for the variable. | |
1195 | That means, give this buffer a new assoc for a local value | |
1196 | and load that binding. */ | |
1197 | else | |
1198 | { | |
1199 | /* local_if_set is only supported for buffer-local | |
1200 | bindings, not for frame-local bindings. */ | |
1201 | eassert (!blv->frame_local); | |
1202 | tem1 = Fcons (symbol, XCDR (blv->defcell)); | |
4b4deea2 TT |
1203 | BVAR (XBUFFER (where), local_var_alist) |
1204 | = Fcons (tem1, BVAR (XBUFFER (where), local_var_alist)); | |
ce5b453a SM |
1205 | } |
1206 | } | |
1207 | ||
1208 | /* Record which binding is now loaded. */ | |
1209 | blv->valcell = tem1; | |
1210 | } | |
b0c2d1c6 | 1211 | |
ce5b453a SM |
1212 | /* Store the new value in the cons cell. */ |
1213 | SET_BLV_VALUE (blv, newval); | |
d8cafeb5 | 1214 | |
ce5b453a SM |
1215 | if (blv->fwd) |
1216 | { | |
1217 | if (voide) | |
1218 | /* If storing void (making the symbol void), forward only through | |
1219 | buffer-local indicator, not through Lisp_Objfwd, etc. */ | |
1220 | blv->fwd = NULL; | |
1221 | else | |
94b612ad SM |
1222 | store_symval_forwarding (blv->fwd, newval, |
1223 | BUFFERP (where) | |
1224 | ? XBUFFER (where) : current_buffer); | |
ce5b453a SM |
1225 | } |
1226 | break; | |
1227 | } | |
1228 | case SYMBOL_FORWARDED: | |
1229 | { | |
94b612ad SM |
1230 | struct buffer *buf |
1231 | = BUFFERP (where) ? XBUFFER (where) : current_buffer; | |
ce5b453a SM |
1232 | union Lisp_Fwd *innercontents = SYMBOL_FWD (sym); |
1233 | if (BUFFER_OBJFWDP (innercontents)) | |
1234 | { | |
1235 | int offset = XBUFFER_OBJFWD (innercontents)->offset; | |
1236 | int idx = PER_BUFFER_IDX (offset); | |
1237 | if (idx > 0 | |
1238 | && !bindflag | |
1239 | && !let_shadows_buffer_binding_p (sym)) | |
1240 | SET_PER_BUFFER_VALUE_P (buf, idx, 1); | |
1241 | } | |
569c11e3 | 1242 | |
ce5b453a SM |
1243 | if (voide) |
1244 | { /* If storing void (making the symbol void), forward only through | |
1245 | buffer-local indicator, not through Lisp_Objfwd, etc. */ | |
1246 | sym->redirect = SYMBOL_PLAINVAL; | |
1247 | SET_SYMBOL_VAL (sym, newval); | |
1248 | } | |
1249 | else | |
1250 | store_symval_forwarding (/* sym, */ innercontents, newval, buf); | |
1251 | break; | |
1252 | } | |
1253 | default: abort (); | |
7921925c | 1254 | } |
ce5b453a | 1255 | return; |
7921925c JB |
1256 | } |
1257 | \f | |
1258 | /* Access or set a buffer-local symbol's default value. */ | |
1259 | ||
d9c2a0f2 | 1260 | /* Return the default value of SYMBOL, but don't check for voidness. |
1bfcade3 | 1261 | Return Qunbound if it is void. */ |
7921925c | 1262 | |
112396d6 | 1263 | static Lisp_Object |
971de7fb | 1264 | default_value (Lisp_Object symbol) |
7921925c | 1265 | { |
ce5b453a | 1266 | struct Lisp_Symbol *sym; |
7921925c | 1267 | |
b7826503 | 1268 | CHECK_SYMBOL (symbol); |
ce5b453a | 1269 | sym = XSYMBOL (symbol); |
7921925c | 1270 | |
ce5b453a SM |
1271 | start: |
1272 | switch (sym->redirect) | |
7921925c | 1273 | { |
ce5b453a SM |
1274 | case SYMBOL_VARALIAS: sym = indirect_variable (sym); goto start; |
1275 | case SYMBOL_PLAINVAL: return SYMBOL_VAL (sym); | |
1276 | case SYMBOL_LOCALIZED: | |
1277 | { | |
1278 | /* If var is set up for a buffer that lacks a local value for it, | |
1279 | the current value is nominally the default value. | |
1280 | But the `realvalue' slot may be more up to date, since | |
1281 | ordinary setq stores just that slot. So use that. */ | |
1282 | struct Lisp_Buffer_Local_Value *blv = SYMBOL_BLV (sym); | |
1283 | if (blv->fwd && EQ (blv->valcell, blv->defcell)) | |
1284 | return do_symval_forwarding (blv->fwd); | |
1285 | else | |
1286 | return XCDR (blv->defcell); | |
1287 | } | |
1288 | case SYMBOL_FORWARDED: | |
1289 | { | |
1290 | union Lisp_Fwd *valcontents = SYMBOL_FWD (sym); | |
7921925c | 1291 | |
ce5b453a SM |
1292 | /* For a built-in buffer-local variable, get the default value |
1293 | rather than letting do_symval_forwarding get the current value. */ | |
1294 | if (BUFFER_OBJFWDP (valcontents)) | |
1295 | { | |
1296 | int offset = XBUFFER_OBJFWD (valcontents)->offset; | |
1297 | if (PER_BUFFER_IDX (offset) != 0) | |
1298 | return PER_BUFFER_DEFAULT (offset); | |
1299 | } | |
1300 | ||
1301 | /* For other variables, get the current value. */ | |
1302 | return do_symval_forwarding (valcontents); | |
1303 | } | |
1304 | default: abort (); | |
7921925c | 1305 | } |
7921925c JB |
1306 | } |
1307 | ||
a7ca3326 | 1308 | DEFUN ("default-boundp", Fdefault_boundp, Sdefault_boundp, 1, 1, 0, |
8c1a1077 PJ |
1309 | doc: /* Return t if SYMBOL has a non-void default value. |
1310 | This is the value that is seen in buffers that do not have their own values | |
1311 | for this variable. */) | |
5842a27b | 1312 | (Lisp_Object symbol) |
7921925c JB |
1313 | { |
1314 | register Lisp_Object value; | |
1315 | ||
d9c2a0f2 | 1316 | value = default_value (symbol); |
1bfcade3 | 1317 | return (EQ (value, Qunbound) ? Qnil : Qt); |
7921925c JB |
1318 | } |
1319 | ||
a7ca3326 | 1320 | DEFUN ("default-value", Fdefault_value, Sdefault_value, 1, 1, 0, |
8c1a1077 PJ |
1321 | doc: /* Return SYMBOL's default value. |
1322 | This is the value that is seen in buffers that do not have their own values | |
1323 | for this variable. The default value is meaningful for variables with | |
1324 | local bindings in certain buffers. */) | |
5842a27b | 1325 | (Lisp_Object symbol) |
7921925c JB |
1326 | { |
1327 | register Lisp_Object value; | |
1328 | ||
d9c2a0f2 | 1329 | value = default_value (symbol); |
740ef0b5 KS |
1330 | if (!EQ (value, Qunbound)) |
1331 | return value; | |
1332 | ||
1333 | xsignal1 (Qvoid_variable, symbol); | |
7921925c JB |
1334 | } |
1335 | ||
a7ca3326 | 1336 | DEFUN ("set-default", Fset_default, Sset_default, 2, 2, 0, |
6e86a75d | 1337 | doc: /* Set SYMBOL's default value to VALUE. SYMBOL and VALUE are evaluated. |
8c1a1077 PJ |
1338 | The default value is seen in buffers that do not have their own values |
1339 | for this variable. */) | |
5842a27b | 1340 | (Lisp_Object symbol, Lisp_Object value) |
7921925c | 1341 | { |
ce5b453a | 1342 | struct Lisp_Symbol *sym; |
7921925c | 1343 | |
b7826503 | 1344 | CHECK_SYMBOL (symbol); |
ce5b453a | 1345 | if (SYMBOL_CONSTANT_P (symbol)) |
7921925c | 1346 | { |
ce5b453a SM |
1347 | if (NILP (Fkeywordp (symbol)) |
1348 | || !EQ (value, Fdefault_value (symbol))) | |
1349 | xsignal1 (Qsetting_constant, symbol); | |
1350 | else | |
1351 | /* Allow setting keywords to their own value. */ | |
1352 | return value; | |
1353 | } | |
1354 | sym = XSYMBOL (symbol); | |
7921925c | 1355 | |
ce5b453a SM |
1356 | start: |
1357 | switch (sym->redirect) | |
1358 | { | |
1359 | case SYMBOL_VARALIAS: sym = indirect_variable (sym); goto start; | |
1360 | case SYMBOL_PLAINVAL: return Fset (symbol, value); | |
1361 | case SYMBOL_LOCALIZED: | |
1362 | { | |
1363 | struct Lisp_Buffer_Local_Value *blv = SYMBOL_BLV (sym); | |
984ef137 | 1364 | |
ce5b453a SM |
1365 | /* Store new value into the DEFAULT-VALUE slot. */ |
1366 | XSETCDR (blv->defcell, value); | |
bfb96cb7 | 1367 | |
ce5b453a SM |
1368 | /* If the default binding is now loaded, set the REALVALUE slot too. */ |
1369 | if (blv->fwd && EQ (blv->defcell, blv->valcell)) | |
1370 | store_symval_forwarding (blv->fwd, value, NULL); | |
1371 | return value; | |
1372 | } | |
1373 | case SYMBOL_FORWARDED: | |
1374 | { | |
1375 | union Lisp_Fwd *valcontents = SYMBOL_FWD (sym); | |
7921925c | 1376 | |
ce5b453a SM |
1377 | /* Handle variables like case-fold-search that have special slots |
1378 | in the buffer. | |
1379 | Make them work apparently like Lisp_Buffer_Local_Value variables. */ | |
1380 | if (BUFFER_OBJFWDP (valcontents)) | |
1381 | { | |
1382 | int offset = XBUFFER_OBJFWD (valcontents)->offset; | |
1383 | int idx = PER_BUFFER_IDX (offset); | |
7921925c | 1384 | |
ce5b453a | 1385 | PER_BUFFER_DEFAULT (offset) = value; |
7921925c | 1386 | |
ce5b453a SM |
1387 | /* If this variable is not always local in all buffers, |
1388 | set it in the buffers that don't nominally have a local value. */ | |
1389 | if (idx > 0) | |
1390 | { | |
1391 | struct buffer *b; | |
7921925c | 1392 | |
eab3844f | 1393 | for (b = all_buffers; b; b = b->header.next.buffer) |
ce5b453a SM |
1394 | if (!PER_BUFFER_VALUE_P (b, idx)) |
1395 | PER_BUFFER_VALUE (b, offset) = value; | |
1396 | } | |
1397 | return value; | |
1398 | } | |
1399 | else | |
1400 | return Fset (symbol, value); | |
1401 | } | |
1402 | default: abort (); | |
1403 | } | |
7921925c JB |
1404 | } |
1405 | ||
7a7df7ac | 1406 | DEFUN ("setq-default", Fsetq_default, Ssetq_default, 0, UNEVALLED, 0, |
8c1a1077 PJ |
1407 | doc: /* Set the default value of variable VAR to VALUE. |
1408 | VAR, the variable name, is literal (not evaluated); | |
bfb96cb7 | 1409 | VALUE is an expression: it is evaluated and its value returned. |
8c1a1077 PJ |
1410 | The default value of a variable is seen in buffers |
1411 | that do not have their own values for the variable. | |
1412 | ||
1413 | More generally, you can use multiple variables and values, as in | |
948d2995 JB |
1414 | (setq-default VAR VALUE VAR VALUE...) |
1415 | This sets each VAR's default value to the corresponding VALUE. | |
1416 | The VALUE for the Nth VAR can refer to the new default values | |
1417 | of previous VARs. | |
70e9f399 | 1418 | usage: (setq-default [VAR VALUE]...) */) |
5842a27b | 1419 | (Lisp_Object args) |
7921925c JB |
1420 | { |
1421 | register Lisp_Object args_left; | |
d9c2a0f2 | 1422 | register Lisp_Object val, symbol; |
7921925c JB |
1423 | struct gcpro gcpro1; |
1424 | ||
a33ef3ab | 1425 | if (NILP (args)) |
7921925c JB |
1426 | return Qnil; |
1427 | ||
1428 | args_left = args; | |
1429 | GCPRO1 (args); | |
1430 | ||
1431 | do | |
1432 | { | |
defb1411 | 1433 | val = eval_sub (Fcar (Fcdr (args_left))); |
d2fde41d | 1434 | symbol = XCAR (args_left); |
d9c2a0f2 | 1435 | Fset_default (symbol, val); |
d2fde41d | 1436 | args_left = Fcdr (XCDR (args_left)); |
7921925c | 1437 | } |
a33ef3ab | 1438 | while (!NILP (args_left)); |
7921925c JB |
1439 | |
1440 | UNGCPRO; | |
1441 | return val; | |
1442 | } | |
1443 | \f | |
a5ca2b75 JB |
1444 | /* Lisp functions for creating and removing buffer-local variables. */ |
1445 | ||
ce5b453a SM |
1446 | union Lisp_Val_Fwd |
1447 | { | |
1448 | Lisp_Object value; | |
1449 | union Lisp_Fwd *fwd; | |
1450 | }; | |
1451 | ||
1452 | static struct Lisp_Buffer_Local_Value * | |
1453 | make_blv (struct Lisp_Symbol *sym, int forwarded, union Lisp_Val_Fwd valcontents) | |
1454 | { | |
1455 | struct Lisp_Buffer_Local_Value *blv | |
1456 | = xmalloc (sizeof (struct Lisp_Buffer_Local_Value)); | |
c632dfda JD |
1457 | Lisp_Object symbol; |
1458 | Lisp_Object tem; | |
1459 | ||
1460 | XSETSYMBOL (symbol, sym); | |
1461 | tem = Fcons (symbol, (forwarded | |
1462 | ? do_symval_forwarding (valcontents.fwd) | |
1463 | : valcontents.value)); | |
1464 | ||
ce5b453a SM |
1465 | /* Buffer_Local_Values cannot have as realval a buffer-local |
1466 | or keyboard-local forwarding. */ | |
1467 | eassert (!(forwarded && BUFFER_OBJFWDP (valcontents.fwd))); | |
1468 | eassert (!(forwarded && KBOARD_OBJFWDP (valcontents.fwd))); | |
1469 | blv->fwd = forwarded ? valcontents.fwd : NULL; | |
1470 | blv->where = Qnil; | |
1471 | blv->frame_local = 0; | |
1472 | blv->local_if_set = 0; | |
1473 | blv->defcell = tem; | |
1474 | blv->valcell = tem; | |
1475 | SET_BLV_FOUND (blv, 0); | |
1476 | return blv; | |
1477 | } | |
1478 | ||
a7ca3326 | 1479 | DEFUN ("make-variable-buffer-local", Fmake_variable_buffer_local, |
16a97296 | 1480 | Smake_variable_buffer_local, 1, 1, "vMake Variable Buffer Local: ", |
8c1a1077 PJ |
1481 | doc: /* Make VARIABLE become buffer-local whenever it is set. |
1482 | At any time, the value for the current buffer is in effect, | |
1483 | unless the variable has never been set in this buffer, | |
1484 | in which case the default value is in effect. | |
1485 | Note that binding the variable with `let', or setting it while | |
1486 | a `let'-style binding made in this buffer is in effect, | |
bfb96cb7 | 1487 | does not make the variable buffer-local. Return VARIABLE. |
8c1a1077 | 1488 | |
a9908653 RS |
1489 | In most cases it is better to use `make-local-variable', |
1490 | which makes a variable local in just one buffer. | |
1491 | ||
8c1a1077 | 1492 | The function `default-value' gets the default value and `set-default' sets it. */) |
5842a27b | 1493 | (register Lisp_Object variable) |
7921925c | 1494 | { |
ad97b375 | 1495 | struct Lisp_Symbol *sym; |
ce5b453a | 1496 | struct Lisp_Buffer_Local_Value *blv = NULL; |
cdef261f PE |
1497 | union Lisp_Val_Fwd valcontents IF_LINT (= {0}); |
1498 | int forwarded IF_LINT (= 0); | |
7921925c | 1499 | |
b7826503 | 1500 | CHECK_SYMBOL (variable); |
ce5b453a | 1501 | sym = XSYMBOL (variable); |
7921925c | 1502 | |
ce5b453a SM |
1503 | start: |
1504 | switch (sym->redirect) | |
fd9440c5 | 1505 | { |
ce5b453a SM |
1506 | case SYMBOL_VARALIAS: sym = indirect_variable (sym); goto start; |
1507 | case SYMBOL_PLAINVAL: | |
1508 | forwarded = 0; valcontents.value = SYMBOL_VAL (sym); | |
1509 | if (EQ (valcontents.value, Qunbound)) | |
1510 | valcontents.value = Qnil; | |
1511 | break; | |
1512 | case SYMBOL_LOCALIZED: | |
1513 | blv = SYMBOL_BLV (sym); | |
1514 | if (blv->frame_local) | |
1515 | error ("Symbol %s may not be buffer-local", | |
1516 | SDATA (SYMBOL_NAME (variable))); | |
1517 | break; | |
1518 | case SYMBOL_FORWARDED: | |
1519 | forwarded = 1; valcontents.fwd = SYMBOL_FWD (sym); | |
1520 | if (KBOARD_OBJFWDP (valcontents.fwd)) | |
1521 | error ("Symbol %s may not be buffer-local", | |
1522 | SDATA (SYMBOL_NAME (variable))); | |
1523 | else if (BUFFER_OBJFWDP (valcontents.fwd)) | |
1524 | return variable; | |
1525 | break; | |
1526 | default: abort (); | |
fd9440c5 | 1527 | } |
ce5b453a SM |
1528 | |
1529 | if (sym->constant) | |
1530 | error ("Symbol %s may not be buffer-local", SDATA (SYMBOL_NAME (variable))); | |
1531 | ||
1532 | if (!blv) | |
7921925c | 1533 | { |
ce5b453a SM |
1534 | blv = make_blv (sym, forwarded, valcontents); |
1535 | sym->redirect = SYMBOL_LOCALIZED; | |
1536 | SET_SYMBOL_BLV (sym, blv); | |
1537 | { | |
1538 | Lisp_Object symbol; | |
1539 | XSETSYMBOL (symbol, sym); /* In case `variable' is aliased. */ | |
1540 | if (let_shadows_global_binding_p (symbol)) | |
8b1e1112 SM |
1541 | message ("Making %s buffer-local while let-bound!", |
1542 | SDATA (SYMBOL_NAME (variable))); | |
ce5b453a | 1543 | } |
7921925c | 1544 | } |
ce5b453a SM |
1545 | |
1546 | blv->local_if_set = 1; | |
d9c2a0f2 | 1547 | return variable; |
7921925c JB |
1548 | } |
1549 | ||
a7ca3326 | 1550 | DEFUN ("make-local-variable", Fmake_local_variable, Smake_local_variable, |
8c1a1077 PJ |
1551 | 1, 1, "vMake Local Variable: ", |
1552 | doc: /* Make VARIABLE have a separate value in the current buffer. | |
1553 | Other buffers will continue to share a common default value. | |
1554 | \(The buffer-local value of VARIABLE starts out as the same value | |
1555 | VARIABLE previously had. If VARIABLE was void, it remains void.\) | |
a9908653 | 1556 | Return VARIABLE. |
8c1a1077 PJ |
1557 | |
1558 | If the variable is already arranged to become local when set, | |
1559 | this function causes a local value to exist for this buffer, | |
1560 | just as setting the variable would do. | |
1561 | ||
1562 | This function returns VARIABLE, and therefore | |
1563 | (set (make-local-variable 'VARIABLE) VALUE-EXP) | |
1564 | works. | |
1565 | ||
a9908653 RS |
1566 | See also `make-variable-buffer-local'. |
1567 | ||
8c1a1077 | 1568 | Do not use `make-local-variable' to make a hook variable buffer-local. |
515f3f25 | 1569 | Instead, use `add-hook' and specify t for the LOCAL argument. */) |
5842a27b | 1570 | (register Lisp_Object variable) |
7921925c | 1571 | { |
ce5b453a | 1572 | register Lisp_Object tem; |
cdef261f PE |
1573 | int forwarded IF_LINT (= 0); |
1574 | union Lisp_Val_Fwd valcontents IF_LINT (= {0}); | |
ad97b375 | 1575 | struct Lisp_Symbol *sym; |
ce5b453a | 1576 | struct Lisp_Buffer_Local_Value *blv = NULL; |
7921925c | 1577 | |
b7826503 | 1578 | CHECK_SYMBOL (variable); |
ce5b453a | 1579 | sym = XSYMBOL (variable); |
7921925c | 1580 | |
ce5b453a SM |
1581 | start: |
1582 | switch (sym->redirect) | |
1583 | { | |
1584 | case SYMBOL_VARALIAS: sym = indirect_variable (sym); goto start; | |
1585 | case SYMBOL_PLAINVAL: | |
1586 | forwarded = 0; valcontents.value = SYMBOL_VAL (sym); break; | |
1587 | case SYMBOL_LOCALIZED: | |
1588 | blv = SYMBOL_BLV (sym); | |
1589 | if (blv->frame_local) | |
1590 | error ("Symbol %s may not be buffer-local", | |
1591 | SDATA (SYMBOL_NAME (variable))); | |
1592 | break; | |
1593 | case SYMBOL_FORWARDED: | |
1594 | forwarded = 1; valcontents.fwd = SYMBOL_FWD (sym); | |
1595 | if (KBOARD_OBJFWDP (valcontents.fwd)) | |
1596 | error ("Symbol %s may not be buffer-local", | |
1597 | SDATA (SYMBOL_NAME (variable))); | |
1598 | break; | |
1599 | default: abort (); | |
1600 | } | |
1601 | ||
1602 | if (sym->constant) | |
8b1e1112 SM |
1603 | error ("Symbol %s may not be buffer-local", |
1604 | SDATA (SYMBOL_NAME (variable))); | |
7921925c | 1605 | |
ce5b453a SM |
1606 | if (blv ? blv->local_if_set |
1607 | : (forwarded && BUFFER_OBJFWDP (valcontents.fwd))) | |
7921925c | 1608 | { |
d9c2a0f2 | 1609 | tem = Fboundp (variable); |
7921925c JB |
1610 | /* Make sure the symbol has a local value in this particular buffer, |
1611 | by setting it to the same value it already has. */ | |
d9c2a0f2 EN |
1612 | Fset (variable, (EQ (tem, Qt) ? Fsymbol_value (variable) : Qunbound)); |
1613 | return variable; | |
7921925c | 1614 | } |
ce5b453a | 1615 | if (!blv) |
7921925c | 1616 | { |
ce5b453a SM |
1617 | blv = make_blv (sym, forwarded, valcontents); |
1618 | sym->redirect = SYMBOL_LOCALIZED; | |
1619 | SET_SYMBOL_BLV (sym, blv); | |
1620 | { | |
1621 | Lisp_Object symbol; | |
1622 | XSETSYMBOL (symbol, sym); /* In case `variable' is aliased. */ | |
1623 | if (let_shadows_global_binding_p (symbol)) | |
8b1e1112 SM |
1624 | message ("Making %s local to %s while let-bound!", |
1625 | SDATA (SYMBOL_NAME (variable)), | |
4b4deea2 | 1626 | SDATA (BVAR (current_buffer, name))); |
ce5b453a | 1627 | } |
7921925c | 1628 | } |
ce5b453a | 1629 | |
42e975f0 | 1630 | /* Make sure this buffer has its own value of symbol. */ |
ce5b453a | 1631 | XSETSYMBOL (variable, sym); /* Update in case of aliasing. */ |
4b4deea2 | 1632 | tem = Fassq (variable, BVAR (current_buffer, local_var_alist)); |
a33ef3ab | 1633 | if (NILP (tem)) |
7921925c | 1634 | { |
ce5b453a SM |
1635 | if (let_shadows_buffer_binding_p (sym)) |
1636 | message ("Making %s buffer-local while locally let-bound!", | |
1637 | SDATA (SYMBOL_NAME (variable))); | |
1638 | ||
a5d004a1 RS |
1639 | /* Swap out any local binding for some other buffer, and make |
1640 | sure the current value is permanently recorded, if it's the | |
1641 | default value. */ | |
d9c2a0f2 | 1642 | find_symbol_value (variable); |
a5d004a1 | 1643 | |
4b4deea2 | 1644 | BVAR (current_buffer, local_var_alist) |
ce5b453a | 1645 | = Fcons (Fcons (variable, XCDR (blv->defcell)), |
4b4deea2 | 1646 | BVAR (current_buffer, local_var_alist)); |
7921925c JB |
1647 | |
1648 | /* Make sure symbol does not think it is set up for this buffer; | |
42e975f0 | 1649 | force it to look once again for this buffer's value. */ |
ce5b453a SM |
1650 | if (current_buffer == XBUFFER (blv->where)) |
1651 | blv->where = Qnil; | |
1652 | /* blv->valcell = blv->defcell; | |
1653 | * SET_BLV_FOUND (blv, 0); */ | |
1654 | blv->found = 0; | |
7921925c | 1655 | } |
a5ca2b75 | 1656 | |
42e975f0 RS |
1657 | /* If the symbol forwards into a C variable, then load the binding |
1658 | for this buffer now. If C code modifies the variable before we | |
1659 | load the binding in, then that new value will clobber the default | |
1660 | binding the next time we unload it. */ | |
ce5b453a SM |
1661 | if (blv->fwd) |
1662 | swap_in_symval_forwarding (sym, blv); | |
a5ca2b75 | 1663 | |
d9c2a0f2 | 1664 | return variable; |
7921925c JB |
1665 | } |
1666 | ||
1667 | DEFUN ("kill-local-variable", Fkill_local_variable, Skill_local_variable, | |
8c1a1077 PJ |
1668 | 1, 1, "vKill Local Variable: ", |
1669 | doc: /* Make VARIABLE no longer have a separate value in the current buffer. | |
bfb96cb7 | 1670 | From now on the default value will apply in this buffer. Return VARIABLE. */) |
5842a27b | 1671 | (register Lisp_Object variable) |
7921925c | 1672 | { |
ce5b453a SM |
1673 | register Lisp_Object tem; |
1674 | struct Lisp_Buffer_Local_Value *blv; | |
ad97b375 | 1675 | struct Lisp_Symbol *sym; |
7921925c | 1676 | |
b7826503 | 1677 | CHECK_SYMBOL (variable); |
ce5b453a | 1678 | sym = XSYMBOL (variable); |
7921925c | 1679 | |
ce5b453a SM |
1680 | start: |
1681 | switch (sym->redirect) | |
7921925c | 1682 | { |
ce5b453a SM |
1683 | case SYMBOL_VARALIAS: sym = indirect_variable (sym); goto start; |
1684 | case SYMBOL_PLAINVAL: return variable; | |
1685 | case SYMBOL_FORWARDED: | |
1686 | { | |
1687 | union Lisp_Fwd *valcontents = SYMBOL_FWD (sym); | |
1688 | if (BUFFER_OBJFWDP (valcontents)) | |
1689 | { | |
1690 | int offset = XBUFFER_OBJFWD (valcontents)->offset; | |
1691 | int idx = PER_BUFFER_IDX (offset); | |
1692 | ||
1693 | if (idx > 0) | |
1694 | { | |
1695 | SET_PER_BUFFER_VALUE_P (current_buffer, idx, 0); | |
1696 | PER_BUFFER_VALUE (current_buffer, offset) | |
1697 | = PER_BUFFER_DEFAULT (offset); | |
1698 | } | |
1699 | } | |
1700 | return variable; | |
1701 | } | |
1702 | case SYMBOL_LOCALIZED: | |
1703 | blv = SYMBOL_BLV (sym); | |
1704 | if (blv->frame_local) | |
1705 | return variable; | |
1706 | break; | |
1707 | default: abort (); | |
7921925c JB |
1708 | } |
1709 | ||
42e975f0 | 1710 | /* Get rid of this buffer's alist element, if any. */ |
ad97b375 | 1711 | XSETSYMBOL (variable, sym); /* Propagate variable indirection. */ |
4b4deea2 | 1712 | tem = Fassq (variable, BVAR (current_buffer, local_var_alist)); |
a33ef3ab | 1713 | if (!NILP (tem)) |
4b4deea2 TT |
1714 | BVAR (current_buffer, local_var_alist) |
1715 | = Fdelq (tem, BVAR (current_buffer, local_var_alist)); | |
7921925c | 1716 | |
42e975f0 RS |
1717 | /* If the symbol is set up with the current buffer's binding |
1718 | loaded, recompute its value. We have to do it now, or else | |
1719 | forwarded objects won't work right. */ | |
7921925c | 1720 | { |
ce5b453a SM |
1721 | Lisp_Object buf; XSETBUFFER (buf, current_buffer); |
1722 | if (EQ (buf, blv->where)) | |
79c83e03 | 1723 | { |
ce5b453a SM |
1724 | blv->where = Qnil; |
1725 | /* blv->valcell = blv->defcell; | |
1726 | * SET_BLV_FOUND (blv, 0); */ | |
1727 | blv->found = 0; | |
978dd578 | 1728 | find_symbol_value (variable); |
79c83e03 | 1729 | } |
7921925c JB |
1730 | } |
1731 | ||
d9c2a0f2 | 1732 | return variable; |
7921925c | 1733 | } |
62476adc | 1734 | |
b0c2d1c6 RS |
1735 | /* Lisp functions for creating and removing buffer-local variables. */ |
1736 | ||
ab795c65 GM |
1737 | /* Obsolete since 22.2. NB adjust doc of modify-frame-parameters |
1738 | when/if this is removed. */ | |
1739 | ||
b0c2d1c6 | 1740 | DEFUN ("make-variable-frame-local", Fmake_variable_frame_local, Smake_variable_frame_local, |
8c1a1077 PJ |
1741 | 1, 1, "vMake Variable Frame Local: ", |
1742 | doc: /* Enable VARIABLE to have frame-local bindings. | |
4d4d36b1 RS |
1743 | This does not create any frame-local bindings for VARIABLE, |
1744 | it just makes them possible. | |
1745 | ||
1746 | A frame-local binding is actually a frame parameter value. | |
1747 | If a frame F has a value for the frame parameter named VARIABLE, | |
1748 | that also acts as a frame-local binding for VARIABLE in F-- | |
1749 | provided this function has been called to enable VARIABLE | |
1750 | to have frame-local bindings at all. | |
1751 | ||
1752 | The only way to create a frame-local binding for VARIABLE in a frame | |
1753 | is to set the VARIABLE frame parameter of that frame. See | |
1754 | `modify-frame-parameters' for how to set frame parameters. | |
1755 | ||
a02a1384 GM |
1756 | Note that since Emacs 23.1, variables cannot be both buffer-local and |
1757 | frame-local any more (buffer-local bindings used to take precedence over | |
1758 | frame-local bindings). */) | |
5842a27b | 1759 | (register Lisp_Object variable) |
b0c2d1c6 | 1760 | { |
ce5b453a SM |
1761 | int forwarded; |
1762 | union Lisp_Val_Fwd valcontents; | |
ad97b375 | 1763 | struct Lisp_Symbol *sym; |
ce5b453a | 1764 | struct Lisp_Buffer_Local_Value *blv = NULL; |
b0c2d1c6 | 1765 | |
b7826503 | 1766 | CHECK_SYMBOL (variable); |
ce5b453a | 1767 | sym = XSYMBOL (variable); |
b0c2d1c6 | 1768 | |
ce5b453a SM |
1769 | start: |
1770 | switch (sym->redirect) | |
42e975f0 | 1771 | { |
ce5b453a SM |
1772 | case SYMBOL_VARALIAS: sym = indirect_variable (sym); goto start; |
1773 | case SYMBOL_PLAINVAL: | |
1774 | forwarded = 0; valcontents.value = SYMBOL_VAL (sym); | |
1775 | if (EQ (valcontents.value, Qunbound)) | |
1776 | valcontents.value = Qnil; | |
1777 | break; | |
1778 | case SYMBOL_LOCALIZED: | |
1779 | if (SYMBOL_BLV (sym)->frame_local) | |
1780 | return variable; | |
1781 | else | |
1782 | error ("Symbol %s may not be frame-local", | |
1783 | SDATA (SYMBOL_NAME (variable))); | |
1784 | case SYMBOL_FORWARDED: | |
1785 | forwarded = 1; valcontents.fwd = SYMBOL_FWD (sym); | |
1786 | if (KBOARD_OBJFWDP (valcontents.fwd) || BUFFER_OBJFWDP (valcontents.fwd)) | |
1787 | error ("Symbol %s may not be frame-local", | |
1788 | SDATA (SYMBOL_NAME (variable))); | |
1789 | break; | |
1790 | default: abort (); | |
42e975f0 | 1791 | } |
b0c2d1c6 | 1792 | |
ce5b453a SM |
1793 | if (sym->constant) |
1794 | error ("Symbol %s may not be frame-local", SDATA (SYMBOL_NAME (variable))); | |
1795 | ||
1796 | blv = make_blv (sym, forwarded, valcontents); | |
1797 | blv->frame_local = 1; | |
1798 | sym->redirect = SYMBOL_LOCALIZED; | |
1799 | SET_SYMBOL_BLV (sym, blv); | |
8b1e1112 SM |
1800 | { |
1801 | Lisp_Object symbol; | |
1802 | XSETSYMBOL (symbol, sym); /* In case `variable' is aliased. */ | |
1803 | if (let_shadows_global_binding_p (symbol)) | |
1804 | message ("Making %s frame-local while let-bound!", | |
1805 | SDATA (SYMBOL_NAME (variable))); | |
1806 | } | |
b0c2d1c6 RS |
1807 | return variable; |
1808 | } | |
1809 | ||
a7ca3326 | 1810 | DEFUN ("local-variable-p", Flocal_variable_p, Slocal_variable_p, |
8c1a1077 PJ |
1811 | 1, 2, 0, |
1812 | doc: /* Non-nil if VARIABLE has a local binding in buffer BUFFER. | |
1813 | BUFFER defaults to the current buffer. */) | |
5842a27b | 1814 | (register Lisp_Object variable, Lisp_Object buffer) |
62476adc | 1815 | { |
c48ead86 | 1816 | register struct buffer *buf; |
ad97b375 | 1817 | struct Lisp_Symbol *sym; |
c48ead86 KH |
1818 | |
1819 | if (NILP (buffer)) | |
1820 | buf = current_buffer; | |
1821 | else | |
1822 | { | |
b7826503 | 1823 | CHECK_BUFFER (buffer); |
c48ead86 KH |
1824 | buf = XBUFFER (buffer); |
1825 | } | |
62476adc | 1826 | |
b7826503 | 1827 | CHECK_SYMBOL (variable); |
ce5b453a | 1828 | sym = XSYMBOL (variable); |
be95bee9 | 1829 | |
ce5b453a SM |
1830 | start: |
1831 | switch (sym->redirect) | |
c48ead86 | 1832 | { |
ce5b453a SM |
1833 | case SYMBOL_VARALIAS: sym = indirect_variable (sym); goto start; |
1834 | case SYMBOL_PLAINVAL: return Qnil; | |
1835 | case SYMBOL_LOCALIZED: | |
1836 | { | |
1837 | Lisp_Object tail, elt, tmp; | |
1838 | struct Lisp_Buffer_Local_Value *blv = SYMBOL_BLV (sym); | |
1839 | XSETBUFFER (tmp, buf); | |
8d1d9587 | 1840 | XSETSYMBOL (variable, sym); /* Update in case of aliasing. */ |
aa3830c4 | 1841 | |
4b4deea2 | 1842 | for (tail = BVAR (buf, local_var_alist); CONSP (tail); tail = XCDR (tail)) |
ce5b453a SM |
1843 | { |
1844 | elt = XCAR (tail); | |
1845 | if (EQ (variable, XCAR (elt))) | |
1846 | { | |
1847 | eassert (!blv->frame_local); | |
1848 | eassert (BLV_FOUND (blv) || !EQ (blv->where, tmp)); | |
1849 | return Qt; | |
1850 | } | |
1851 | } | |
1852 | eassert (!BLV_FOUND (blv) || !EQ (blv->where, tmp)); | |
1853 | return Qnil; | |
1854 | } | |
1855 | case SYMBOL_FORWARDED: | |
1856 | { | |
1857 | union Lisp_Fwd *valcontents = SYMBOL_FWD (sym); | |
1858 | if (BUFFER_OBJFWDP (valcontents)) | |
1859 | { | |
1860 | int offset = XBUFFER_OBJFWD (valcontents)->offset; | |
1861 | int idx = PER_BUFFER_IDX (offset); | |
1862 | if (idx == -1 || PER_BUFFER_VALUE_P (buf, idx)) | |
1863 | return Qt; | |
1864 | } | |
1865 | return Qnil; | |
1866 | } | |
1867 | default: abort (); | |
c48ead86 | 1868 | } |
62476adc | 1869 | } |
f4f04cee RS |
1870 | |
1871 | DEFUN ("local-variable-if-set-p", Flocal_variable_if_set_p, Slocal_variable_if_set_p, | |
8c1a1077 | 1872 | 1, 2, 0, |
1dc5ba01 LT |
1873 | doc: /* Non-nil if VARIABLE will be local in buffer BUFFER when set there. |
1874 | More precisely, this means that setting the variable \(with `set' or`setq'), | |
1875 | while it does not have a `let'-style binding that was made in BUFFER, | |
1876 | will produce a buffer local binding. See Info node | |
1877 | `(elisp)Creating Buffer-Local'. | |
8c1a1077 | 1878 | BUFFER defaults to the current buffer. */) |
5842a27b | 1879 | (register Lisp_Object variable, Lisp_Object buffer) |
f4f04cee | 1880 | { |
ad97b375 | 1881 | struct Lisp_Symbol *sym; |
f4f04cee | 1882 | |
b7826503 | 1883 | CHECK_SYMBOL (variable); |
ce5b453a | 1884 | sym = XSYMBOL (variable); |
f4f04cee | 1885 | |
ce5b453a SM |
1886 | start: |
1887 | switch (sym->redirect) | |
f4f04cee | 1888 | { |
ce5b453a SM |
1889 | case SYMBOL_VARALIAS: sym = indirect_variable (sym); goto start; |
1890 | case SYMBOL_PLAINVAL: return Qnil; | |
1891 | case SYMBOL_LOCALIZED: | |
1892 | { | |
1893 | struct Lisp_Buffer_Local_Value *blv = SYMBOL_BLV (sym); | |
1894 | if (blv->local_if_set) | |
1895 | return Qt; | |
1896 | XSETSYMBOL (variable, sym); /* Update in case of aliasing. */ | |
1897 | return Flocal_variable_p (variable, buffer); | |
1898 | } | |
1899 | case SYMBOL_FORWARDED: | |
1900 | /* All BUFFER_OBJFWD slots become local if they are set. */ | |
1901 | return (BUFFER_OBJFWDP (SYMBOL_FWD (sym)) ? Qt : Qnil); | |
1902 | default: abort (); | |
f4f04cee | 1903 | } |
f4f04cee | 1904 | } |
6b61353c KH |
1905 | |
1906 | DEFUN ("variable-binding-locus", Fvariable_binding_locus, Svariable_binding_locus, | |
1907 | 1, 1, 0, | |
1908 | doc: /* Return a value indicating where VARIABLE's current binding comes from. | |
1909 | If the current binding is buffer-local, the value is the current buffer. | |
1910 | If the current binding is frame-local, the value is the selected frame. | |
1911 | If the current binding is global (the default), the value is nil. */) | |
5842a27b | 1912 | (register Lisp_Object variable) |
6b61353c | 1913 | { |
ad97b375 | 1914 | struct Lisp_Symbol *sym; |
6b61353c KH |
1915 | |
1916 | CHECK_SYMBOL (variable); | |
ce5b453a | 1917 | sym = XSYMBOL (variable); |
6b61353c KH |
1918 | |
1919 | /* Make sure the current binding is actually swapped in. */ | |
1920 | find_symbol_value (variable); | |
1921 | ||
ce5b453a SM |
1922 | start: |
1923 | switch (sym->redirect) | |
6b61353c | 1924 | { |
ce5b453a SM |
1925 | case SYMBOL_VARALIAS: sym = indirect_variable (sym); goto start; |
1926 | case SYMBOL_PLAINVAL: return Qnil; | |
1927 | case SYMBOL_FORWARDED: | |
1928 | { | |
1929 | union Lisp_Fwd *valcontents = SYMBOL_FWD (sym); | |
1930 | if (KBOARD_OBJFWDP (valcontents)) | |
1931 | return Fframe_terminal (Fselected_frame ()); | |
1932 | else if (!BUFFER_OBJFWDP (valcontents)) | |
1933 | return Qnil; | |
1934 | } | |
1935 | /* FALLTHROUGH */ | |
1936 | case SYMBOL_LOCALIZED: | |
6b61353c KH |
1937 | /* For a local variable, record both the symbol and which |
1938 | buffer's or frame's value we are saving. */ | |
1939 | if (!NILP (Flocal_variable_p (variable, Qnil))) | |
1940 | return Fcurrent_buffer (); | |
ce5b453a SM |
1941 | else if (sym->redirect == SYMBOL_LOCALIZED |
1942 | && BLV_FOUND (SYMBOL_BLV (sym))) | |
1943 | return SYMBOL_BLV (sym)->where; | |
1944 | else | |
1945 | return Qnil; | |
1946 | default: abort (); | |
6b61353c | 1947 | } |
6b61353c | 1948 | } |
2a42d440 | 1949 | |
c40bb1ba KL |
1950 | /* This code is disabled now that we use the selected frame to return |
1951 | keyboard-local-values. */ | |
1952 | #if 0 | |
f57e2426 | 1953 | extern struct terminal *get_terminal (Lisp_Object display, int); |
2a42d440 | 1954 | |
a7ca3326 | 1955 | DEFUN ("terminal-local-value", Fterminal_local_value, |
16a97296 | 1956 | Sterminal_local_value, 2, 2, 0, |
6ed8eeff | 1957 | doc: /* Return the terminal-local value of SYMBOL on TERMINAL. |
2a42d440 KL |
1958 | If SYMBOL is not a terminal-local variable, then return its normal |
1959 | value, like `symbol-value'. | |
1960 | ||
708e05dc | 1961 | TERMINAL may be a terminal object, a frame, or nil (meaning the |
6ed8eeff | 1962 | selected frame's terminal device). */) |
5842a27b | 1963 | (Lisp_Object symbol, Lisp_Object terminal) |
2a42d440 KL |
1964 | { |
1965 | Lisp_Object result; | |
6ed8eeff KL |
1966 | struct terminal *t = get_terminal (terminal, 1); |
1967 | push_kboard (t->kboard); | |
2a42d440 | 1968 | result = Fsymbol_value (symbol); |
256c9c3a | 1969 | pop_kboard (); |
2a42d440 KL |
1970 | return result; |
1971 | } | |
1972 | ||
a7ca3326 | 1973 | DEFUN ("set-terminal-local-value", Fset_terminal_local_value, |
16a97296 | 1974 | Sset_terminal_local_value, 3, 3, 0, |
6ed8eeff | 1975 | doc: /* Set the terminal-local binding of SYMBOL on TERMINAL to VALUE. |
2a42d440 | 1976 | If VARIABLE is not a terminal-local variable, then set its normal |
7e59217d KL |
1977 | binding, like `set'. |
1978 | ||
708e05dc | 1979 | TERMINAL may be a terminal object, a frame, or nil (meaning the |
6ed8eeff | 1980 | selected frame's terminal device). */) |
5842a27b | 1981 | (Lisp_Object symbol, Lisp_Object terminal, Lisp_Object value) |
2a42d440 KL |
1982 | { |
1983 | Lisp_Object result; | |
6ed8eeff | 1984 | struct terminal *t = get_terminal (terminal, 1); |
256c9c3a | 1985 | push_kboard (d->kboard); |
2a42d440 | 1986 | result = Fset (symbol, value); |
256c9c3a | 1987 | pop_kboard (); |
2a42d440 KL |
1988 | return result; |
1989 | } | |
c40bb1ba | 1990 | #endif |
7921925c | 1991 | \f |
ffd56f97 JB |
1992 | /* Find the function at the end of a chain of symbol function indirections. */ |
1993 | ||
1994 | /* If OBJECT is a symbol, find the end of its function chain and | |
1995 | return the value found there. If OBJECT is not a symbol, just | |
1996 | return it. If there is a cycle in the function chain, signal a | |
1997 | cyclic-function-indirection error. | |
1998 | ||
1999 | This is like Findirect_function, except that it doesn't signal an | |
2000 | error if the chain ends up unbound. */ | |
2001 | Lisp_Object | |
971de7fb | 2002 | indirect_function (register Lisp_Object object) |
ffd56f97 | 2003 | { |
eb8c3be9 | 2004 | Lisp_Object tortoise, hare; |
ffd56f97 | 2005 | |
eb8c3be9 | 2006 | hare = tortoise = object; |
ffd56f97 JB |
2007 | |
2008 | for (;;) | |
2009 | { | |
e9ebc175 | 2010 | if (!SYMBOLP (hare) || EQ (hare, Qunbound)) |
ffd56f97 JB |
2011 | break; |
2012 | hare = XSYMBOL (hare)->function; | |
e9ebc175 | 2013 | if (!SYMBOLP (hare) || EQ (hare, Qunbound)) |
ffd56f97 JB |
2014 | break; |
2015 | hare = XSYMBOL (hare)->function; | |
2016 | ||
eb8c3be9 | 2017 | tortoise = XSYMBOL (tortoise)->function; |
ffd56f97 | 2018 | |
eb8c3be9 | 2019 | if (EQ (hare, tortoise)) |
740ef0b5 | 2020 | xsignal1 (Qcyclic_function_indirection, object); |
ffd56f97 JB |
2021 | } |
2022 | ||
2023 | return hare; | |
2024 | } | |
2025 | ||
a7ca3326 | 2026 | DEFUN ("indirect-function", Findirect_function, Sindirect_function, 1, 2, 0, |
8c1a1077 | 2027 | doc: /* Return the function at the end of OBJECT's function chain. |
0ddb0ae8 TTN |
2028 | If OBJECT is not a symbol, just return it. Otherwise, follow all |
2029 | function indirections to find the final function binding and return it. | |
2030 | If the final symbol in the chain is unbound, signal a void-function error. | |
8350f087 | 2031 | Optional arg NOERROR non-nil means to return nil instead of signaling. |
8c1a1077 PJ |
2032 | Signal a cyclic-function-indirection error if there is a loop in the |
2033 | function chain of symbols. */) | |
5842a27b | 2034 | (register Lisp_Object object, Lisp_Object noerror) |
ffd56f97 JB |
2035 | { |
2036 | Lisp_Object result; | |
2037 | ||
64de53d8 KS |
2038 | /* Optimize for no indirection. */ |
2039 | result = object; | |
2040 | if (SYMBOLP (result) && !EQ (result, Qunbound) | |
2041 | && (result = XSYMBOL (result)->function, SYMBOLP (result))) | |
2042 | result = indirect_function (result); | |
2043 | if (!EQ (result, Qunbound)) | |
2044 | return result; | |
ffd56f97 | 2045 | |
64de53d8 | 2046 | if (NILP (noerror)) |
740ef0b5 | 2047 | xsignal1 (Qvoid_function, object); |
ffd56f97 | 2048 | |
64de53d8 | 2049 | return Qnil; |
ffd56f97 JB |
2050 | } |
2051 | \f | |
7921925c JB |
2052 | /* Extract and set vector and string elements */ |
2053 | ||
a7ca3326 | 2054 | DEFUN ("aref", Faref, Saref, 2, 2, 0, |
8c1a1077 PJ |
2055 | doc: /* Return the element of ARRAY at index IDX. |
2056 | ARRAY may be a vector, a string, a char-table, a bool-vector, | |
2057 | or a byte-code object. IDX starts at 0. */) | |
5842a27b | 2058 | (register Lisp_Object array, Lisp_Object idx) |
7921925c | 2059 | { |
ace1712c | 2060 | register EMACS_INT idxval; |
7921925c | 2061 | |
b7826503 | 2062 | CHECK_NUMBER (idx); |
7921925c | 2063 | idxval = XINT (idx); |
e9ebc175 | 2064 | if (STRINGP (array)) |
7921925c | 2065 | { |
ace1712c EZ |
2066 | int c; |
2067 | EMACS_INT idxval_byte; | |
25638b07 | 2068 | |
d5db4077 | 2069 | if (idxval < 0 || idxval >= SCHARS (array)) |
c24e4efe | 2070 | args_out_of_range (array, idx); |
25638b07 | 2071 | if (! STRING_MULTIBYTE (array)) |
d5db4077 | 2072 | return make_number ((unsigned char) SREF (array, idxval)); |
25638b07 RS |
2073 | idxval_byte = string_char_to_byte (array, idxval); |
2074 | ||
62a6e103 | 2075 | c = STRING_CHAR (SDATA (array) + idxval_byte); |
25638b07 | 2076 | return make_number (c); |
7921925c | 2077 | } |
4d276982 RS |
2078 | else if (BOOL_VECTOR_P (array)) |
2079 | { | |
2080 | int val; | |
4d276982 RS |
2081 | |
2082 | if (idxval < 0 || idxval >= XBOOL_VECTOR (array)->size) | |
2083 | args_out_of_range (array, idx); | |
2084 | ||
b9ed2177 AS |
2085 | val = (unsigned char) XBOOL_VECTOR (array)->data[idxval / BOOL_VECTOR_BITS_PER_CHAR]; |
2086 | return (val & (1 << (idxval % BOOL_VECTOR_BITS_PER_CHAR)) ? Qt : Qnil); | |
4d276982 RS |
2087 | } |
2088 | else if (CHAR_TABLE_P (array)) | |
2089 | { | |
e6e1f521 KH |
2090 | CHECK_CHARACTER (idx); |
2091 | return CHAR_TABLE_REF (array, idxval); | |
4d276982 | 2092 | } |
7921925c | 2093 | else |
c24e4efe | 2094 | { |
6bbd7a29 | 2095 | int size = 0; |
7f358972 | 2096 | if (VECTORP (array)) |
77b37c05 | 2097 | size = ASIZE (array); |
876c194c | 2098 | else if (COMPILEDP (array)) |
77b37c05 | 2099 | size = ASIZE (array) & PSEUDOVECTOR_SIZE_MASK; |
7f358972 RS |
2100 | else |
2101 | wrong_type_argument (Qarrayp, array); | |
2102 | ||
2103 | if (idxval < 0 || idxval >= size) | |
c24e4efe | 2104 | args_out_of_range (array, idx); |
b9598260 | 2105 | return AREF (array, idxval); |
c24e4efe | 2106 | } |
7921925c JB |
2107 | } |
2108 | ||
a7ca3326 | 2109 | DEFUN ("aset", Faset, Saset, 3, 3, 0, |
8c1a1077 | 2110 | doc: /* Store into the element of ARRAY at index IDX the value NEWELT. |
bfb96cb7 FP |
2111 | Return NEWELT. ARRAY may be a vector, a string, a char-table or a |
2112 | bool-vector. IDX starts at 0. */) | |
5842a27b | 2113 | (register Lisp_Object array, Lisp_Object idx, Lisp_Object newelt) |
7921925c | 2114 | { |
ace1712c | 2115 | register EMACS_INT idxval; |
7921925c | 2116 | |
b7826503 | 2117 | CHECK_NUMBER (idx); |
7921925c | 2118 | idxval = XINT (idx); |
0c64a8cd | 2119 | CHECK_ARRAY (array, Qarrayp); |
7921925c JB |
2120 | CHECK_IMPURE (array); |
2121 | ||
e9ebc175 | 2122 | if (VECTORP (array)) |
c24e4efe | 2123 | { |
77b37c05 | 2124 | if (idxval < 0 || idxval >= ASIZE (array)) |
c24e4efe KH |
2125 | args_out_of_range (array, idx); |
2126 | XVECTOR (array)->contents[idxval] = newelt; | |
2127 | } | |
4d276982 RS |
2128 | else if (BOOL_VECTOR_P (array)) |
2129 | { | |
2130 | int val; | |
4d276982 RS |
2131 | |
2132 | if (idxval < 0 || idxval >= XBOOL_VECTOR (array)->size) | |
2133 | args_out_of_range (array, idx); | |
2134 | ||
b9ed2177 | 2135 | val = (unsigned char) XBOOL_VECTOR (array)->data[idxval / BOOL_VECTOR_BITS_PER_CHAR]; |
4d276982 RS |
2136 | |
2137 | if (! NILP (newelt)) | |
b9ed2177 | 2138 | val |= 1 << (idxval % BOOL_VECTOR_BITS_PER_CHAR); |
4d276982 | 2139 | else |
b9ed2177 AS |
2140 | val &= ~(1 << (idxval % BOOL_VECTOR_BITS_PER_CHAR)); |
2141 | XBOOL_VECTOR (array)->data[idxval / BOOL_VECTOR_BITS_PER_CHAR] = val; | |
4d276982 RS |
2142 | } |
2143 | else if (CHAR_TABLE_P (array)) | |
2144 | { | |
e6e1f521 KH |
2145 | CHECK_CHARACTER (idx); |
2146 | CHAR_TABLE_SET (array, idxval, newelt); | |
4d276982 | 2147 | } |
0fed43f3 | 2148 | else |
25638b07 | 2149 | { |
13bdea59 | 2150 | int c; |
25638b07 | 2151 | |
d5db4077 | 2152 | if (idxval < 0 || idxval >= SCHARS (array)) |
25638b07 | 2153 | args_out_of_range (array, idx); |
d9130605 | 2154 | CHECK_CHARACTER (newelt); |
13bdea59 | 2155 | c = XFASTINT (newelt); |
25638b07 | 2156 | |
0fed43f3 | 2157 | if (STRING_MULTIBYTE (array)) |
3c9de1af | 2158 | { |
0fed43f3 PE |
2159 | EMACS_INT idxval_byte, prev_bytes, new_bytes, nbytes; |
2160 | unsigned char workbuf[MAX_MULTIBYTE_LENGTH], *p0 = workbuf, *p1; | |
2161 | ||
2162 | nbytes = SBYTES (array); | |
2163 | idxval_byte = string_char_to_byte (array, idxval); | |
d5db4077 | 2164 | p1 = SDATA (array) + idxval_byte; |
0fed43f3 PE |
2165 | prev_bytes = BYTES_BY_CHAR_HEAD (*p1); |
2166 | new_bytes = CHAR_STRING (c, p0); | |
2167 | if (prev_bytes != new_bytes) | |
2168 | { | |
2169 | /* We must relocate the string data. */ | |
2170 | EMACS_INT nchars = SCHARS (array); | |
2171 | unsigned char *str; | |
2172 | USE_SAFE_ALLOCA; | |
2173 | ||
2174 | SAFE_ALLOCA (str, unsigned char *, nbytes); | |
2175 | memcpy (str, SDATA (array), nbytes); | |
2176 | allocate_string_data (XSTRING (array), nchars, | |
2177 | nbytes + new_bytes - prev_bytes); | |
2178 | memcpy (SDATA (array), str, idxval_byte); | |
2179 | p1 = SDATA (array) + idxval_byte; | |
2180 | memcpy (p1 + new_bytes, str + idxval_byte + prev_bytes, | |
2181 | nbytes - (idxval_byte + prev_bytes)); | |
2182 | SAFE_FREE (); | |
2183 | clear_string_char_byte_cache (); | |
2184 | } | |
2185 | while (new_bytes--) | |
2186 | *p1++ = *p0++; | |
3c9de1af | 2187 | } |
0fed43f3 | 2188 | else |
5dff5999 | 2189 | { |
0fed43f3 PE |
2190 | if (! SINGLE_BYTE_CHAR_P (c)) |
2191 | { | |
2192 | int i; | |
2193 | ||
2194 | for (i = SBYTES (array) - 1; i >= 0; i--) | |
2195 | if (SREF (array, i) >= 0x80) | |
2196 | args_out_of_range (array, newelt); | |
2197 | /* ARRAY is an ASCII string. Convert it to a multibyte | |
2198 | string, and try `aset' again. */ | |
2199 | STRING_SET_MULTIBYTE (array); | |
2200 | return Faset (array, idx, newelt); | |
2201 | } | |
2202 | SSET (array, idxval, c); | |
5dff5999 | 2203 | } |
7921925c JB |
2204 | } |
2205 | ||
2206 | return newelt; | |
2207 | } | |
7921925c JB |
2208 | \f |
2209 | /* Arithmetic functions */ | |
2210 | ||
2211 | enum comparison { equal, notequal, less, grtr, less_or_equal, grtr_or_equal }; | |
2212 | ||
112396d6 | 2213 | static Lisp_Object |
971de7fb | 2214 | arithcompare (Lisp_Object num1, Lisp_Object num2, enum comparison comparison) |
7921925c | 2215 | { |
6bbd7a29 | 2216 | double f1 = 0, f2 = 0; |
7921925c JB |
2217 | int floatp = 0; |
2218 | ||
b7826503 PJ |
2219 | CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (num1); |
2220 | CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (num2); | |
7921925c | 2221 | |
e9ebc175 | 2222 | if (FLOATP (num1) || FLOATP (num2)) |
7921925c JB |
2223 | { |
2224 | floatp = 1; | |
7539e11f KR |
2225 | f1 = (FLOATP (num1)) ? XFLOAT_DATA (num1) : XINT (num1); |
2226 | f2 = (FLOATP (num2)) ? XFLOAT_DATA (num2) : XINT (num2); | |
7921925c | 2227 | } |
7921925c JB |
2228 | |
2229 | switch (comparison) | |
2230 | { | |
2231 | case equal: | |
2232 | if (floatp ? f1 == f2 : XINT (num1) == XINT (num2)) | |
2233 | return Qt; | |
2234 | return Qnil; | |
2235 | ||
2236 | case notequal: | |
2237 | if (floatp ? f1 != f2 : XINT (num1) != XINT (num2)) | |
2238 | return Qt; | |
2239 | return Qnil; | |
2240 | ||
2241 | case less: | |
2242 | if (floatp ? f1 < f2 : XINT (num1) < XINT (num2)) | |
2243 | return Qt; | |
2244 | return Qnil; | |
2245 | ||
2246 | case less_or_equal: | |
2247 | if (floatp ? f1 <= f2 : XINT (num1) <= XINT (num2)) | |
2248 | return Qt; | |
2249 | return Qnil; | |
2250 | ||
2251 | case grtr: | |
2252 | if (floatp ? f1 > f2 : XINT (num1) > XINT (num2)) | |
2253 | return Qt; | |
2254 | return Qnil; | |
2255 | ||
2256 | case grtr_or_equal: | |
2257 | if (floatp ? f1 >= f2 : XINT (num1) >= XINT (num2)) | |
2258 | return Qt; | |
2259 | return Qnil; | |
25e40a4b JB |
2260 | |
2261 | default: | |
2262 | abort (); | |
7921925c JB |
2263 | } |
2264 | } | |
2265 | ||
2266 | DEFUN ("=", Feqlsign, Seqlsign, 2, 2, 0, | |
8c1a1077 | 2267 | doc: /* Return t if two args, both numbers or markers, are equal. */) |
5842a27b | 2268 | (register Lisp_Object num1, Lisp_Object num2) |
7921925c JB |
2269 | { |
2270 | return arithcompare (num1, num2, equal); | |
2271 | } | |
2272 | ||
a7ca3326 | 2273 | DEFUN ("<", Flss, Slss, 2, 2, 0, |
8c1a1077 | 2274 | doc: /* Return t if first arg is less than second arg. Both must be numbers or markers. */) |
5842a27b | 2275 | (register Lisp_Object num1, Lisp_Object num2) |
7921925c JB |
2276 | { |
2277 | return arithcompare (num1, num2, less); | |
2278 | } | |
2279 | ||
a7ca3326 | 2280 | DEFUN (">", Fgtr, Sgtr, 2, 2, 0, |
8c1a1077 | 2281 | doc: /* Return t if first arg is greater than second arg. Both must be numbers or markers. */) |
5842a27b | 2282 | (register Lisp_Object num1, Lisp_Object num2) |
7921925c JB |
2283 | { |
2284 | return arithcompare (num1, num2, grtr); | |
2285 | } | |
2286 | ||
a7ca3326 | 2287 | DEFUN ("<=", Fleq, Sleq, 2, 2, 0, |
8c1a1077 PJ |
2288 | doc: /* Return t if first arg is less than or equal to second arg. |
2289 | Both must be numbers or markers. */) | |
5842a27b | 2290 | (register Lisp_Object num1, Lisp_Object num2) |
7921925c JB |
2291 | { |
2292 | return arithcompare (num1, num2, less_or_equal); | |
2293 | } | |
2294 | ||
a7ca3326 | 2295 | DEFUN (">=", Fgeq, Sgeq, 2, 2, 0, |
8c1a1077 PJ |
2296 | doc: /* Return t if first arg is greater than or equal to second arg. |
2297 | Both must be numbers or markers. */) | |
5842a27b | 2298 | (register Lisp_Object num1, Lisp_Object num2) |
7921925c JB |
2299 | { |
2300 | return arithcompare (num1, num2, grtr_or_equal); | |
2301 | } | |
2302 | ||
2303 | DEFUN ("/=", Fneq, Sneq, 2, 2, 0, | |
8c1a1077 | 2304 | doc: /* Return t if first arg is not equal to second arg. Both must be numbers or markers. */) |
5842a27b | 2305 | (register Lisp_Object num1, Lisp_Object num2) |
7921925c JB |
2306 | { |
2307 | return arithcompare (num1, num2, notequal); | |
2308 | } | |
2309 | ||
a7ca3326 | 2310 | DEFUN ("zerop", Fzerop, Szerop, 1, 1, 0, |
8c1a1077 | 2311 | doc: /* Return t if NUMBER is zero. */) |
5842a27b | 2312 | (register Lisp_Object number) |
7921925c | 2313 | { |
b7826503 | 2314 | CHECK_NUMBER_OR_FLOAT (number); |
7921925c | 2315 | |
d9c2a0f2 | 2316 | if (FLOATP (number)) |
7921925c | 2317 | { |
7539e11f | 2318 | if (XFLOAT_DATA (number) == 0.0) |
7921925c JB |
2319 | return Qt; |
2320 | return Qnil; | |
2321 | } | |
7921925c | 2322 | |
d9c2a0f2 | 2323 | if (!XINT (number)) |
7921925c JB |
2324 | return Qt; |
2325 | return Qnil; | |
2326 | } | |
2327 | \f | |
be44ca6c PE |
2328 | /* Convert the cons-of-integers, integer, or float value C to an |
2329 | unsigned value with maximum value MAX. Signal an error if C does not | |
2330 | have a valid format or is out of range. */ | |
2331 | uintmax_t | |
2332 | cons_to_unsigned (Lisp_Object c, uintmax_t max) | |
2333 | { | |
2334 | int valid = 0; | |
2335 | uintmax_t val IF_LINT (= 0); | |
2336 | if (INTEGERP (c)) | |
2337 | { | |
2338 | valid = 0 <= XINT (c); | |
2339 | val = XINT (c); | |
2340 | } | |
2341 | else if (FLOATP (c)) | |
2342 | { | |
2343 | double d = XFLOAT_DATA (c); | |
2344 | if (0 <= d | |
2345 | && d < (max == UINTMAX_MAX ? (double) UINTMAX_MAX + 1 : max + 1)) | |
2346 | { | |
2347 | val = d; | |
2348 | valid = 1; | |
2349 | } | |
2350 | } | |
2351 | else if (CONSP (c) && NATNUMP (XCAR (c))) | |
2352 | { | |
2353 | uintmax_t top = XFASTINT (XCAR (c)); | |
2354 | Lisp_Object rest = XCDR (c); | |
2355 | if (top <= UINTMAX_MAX >> 24 >> 16 | |
2356 | && CONSP (rest) | |
2357 | && NATNUMP (XCAR (rest)) && XFASTINT (XCAR (rest)) < 1 << 24 | |
2358 | && NATNUMP (XCDR (rest)) && XFASTINT (XCDR (rest)) < 1 << 16) | |
2359 | { | |
2360 | uintmax_t mid = XFASTINT (XCAR (rest)); | |
2361 | val = top << 24 << 16 | mid << 16 | XFASTINT (XCDR (rest)); | |
2362 | valid = 1; | |
2363 | } | |
2364 | else if (top <= UINTMAX_MAX >> 16) | |
2365 | { | |
2366 | if (CONSP (rest)) | |
2367 | rest = XCAR (rest); | |
2368 | if (NATNUMP (rest) && XFASTINT (rest) < 1 << 16) | |
2369 | { | |
2370 | val = top << 16 | XFASTINT (rest); | |
2371 | valid = 1; | |
2372 | } | |
2373 | } | |
2374 | } | |
51cf3e31 | 2375 | |
be44ca6c PE |
2376 | if (! (valid && val <= max)) |
2377 | error ("Not an in-range integer, float, or cons of integers"); | |
2378 | return val; | |
51cf3e31 JB |
2379 | } |
2380 | ||
be44ca6c PE |
2381 | /* Convert the cons-of-integers, integer, or float value C to a signed |
2382 | value with extrema MIN and MAX. Signal an error if C does not have | |
2383 | a valid format or is out of range. */ | |
2384 | intmax_t | |
2385 | cons_to_signed (Lisp_Object c, intmax_t min, intmax_t max) | |
51cf3e31 | 2386 | { |
be44ca6c PE |
2387 | int valid = 0; |
2388 | intmax_t val IF_LINT (= 0); | |
51cf3e31 | 2389 | if (INTEGERP (c)) |
be44ca6c PE |
2390 | { |
2391 | val = XINT (c); | |
2392 | valid = 1; | |
2393 | } | |
2394 | else if (FLOATP (c)) | |
2395 | { | |
2396 | double d = XFLOAT_DATA (c); | |
2397 | if (min <= d | |
2398 | && d < (max == INTMAX_MAX ? (double) INTMAX_MAX + 1 : max + 1)) | |
2399 | { | |
2400 | val = d; | |
2401 | valid = 1; | |
2402 | } | |
2403 | } | |
2404 | else if (CONSP (c) && INTEGERP (XCAR (c))) | |
2405 | { | |
2406 | intmax_t top = XINT (XCAR (c)); | |
2407 | Lisp_Object rest = XCDR (c); | |
2408 | if (INTMAX_MIN >> 24 >> 16 <= top && top <= INTMAX_MAX >> 24 >> 16 | |
2409 | && CONSP (rest) | |
2410 | && NATNUMP (XCAR (rest)) && XFASTINT (XCAR (rest)) < 1 << 24 | |
2411 | && NATNUMP (XCDR (rest)) && XFASTINT (XCDR (rest)) < 1 << 16) | |
2412 | { | |
2413 | intmax_t mid = XFASTINT (XCAR (rest)); | |
2414 | val = top << 24 << 16 | mid << 16 | XFASTINT (XCDR (rest)); | |
2415 | valid = 1; | |
2416 | } | |
2417 | else if (INTMAX_MIN >> 16 <= top && top <= INTMAX_MAX >> 16) | |
2418 | { | |
2419 | if (CONSP (rest)) | |
2420 | rest = XCAR (rest); | |
2421 | if (NATNUMP (rest) && XFASTINT (rest) < 1 << 16) | |
2422 | { | |
2423 | val = top << 16 | XFASTINT (rest); | |
2424 | valid = 1; | |
2425 | } | |
2426 | } | |
2427 | } | |
2428 | ||
2429 | if (! (valid && min <= val && val <= max)) | |
2430 | error ("Not an in-range integer, float, or cons of integers"); | |
2431 | return val; | |
51cf3e31 JB |
2432 | } |
2433 | \f | |
a7ca3326 | 2434 | DEFUN ("number-to-string", Fnumber_to_string, Snumber_to_string, 1, 1, 0, |
bfb96cb7 | 2435 | doc: /* Return the decimal representation of NUMBER as a string. |
8c1a1077 PJ |
2436 | Uses a minus sign if negative. |
2437 | NUMBER may be an integer or a floating point number. */) | |
5842a27b | 2438 | (Lisp_Object number) |
7921925c | 2439 | { |
6030ce64 | 2440 | char buffer[VALBITS]; |
7921925c | 2441 | |
b7826503 | 2442 | CHECK_NUMBER_OR_FLOAT (number); |
7921925c | 2443 | |
d9c2a0f2 | 2444 | if (FLOATP (number)) |
7921925c | 2445 | { |
6e8e6bf2 | 2446 | char pigbuf[FLOAT_TO_STRING_BUFSIZE]; |
7921925c | 2447 | |
7539e11f | 2448 | float_to_string (pigbuf, XFLOAT_DATA (number)); |
7403b5c8 | 2449 | return build_string (pigbuf); |
7921925c | 2450 | } |
7921925c | 2451 | |
c2982e87 | 2452 | sprintf (buffer, "%"pI"d", XINT (number)); |
7921925c JB |
2453 | return build_string (buffer); |
2454 | } | |
2455 | ||
a7ca3326 | 2456 | DEFUN ("string-to-number", Fstring_to_number, Sstring_to_number, 1, 2, 0, |
558ee900 | 2457 | doc: /* Parse STRING as a decimal number and return the number. |
8c1a1077 | 2458 | This parses both integers and floating point numbers. |
be95bee9 | 2459 | It ignores leading spaces and tabs, and all trailing chars. |
8c1a1077 PJ |
2460 | |
2461 | If BASE, interpret STRING as a number in that base. If BASE isn't | |
2462 | present, base 10 is used. BASE must be between 2 and 16 (inclusive). | |
be95bee9 | 2463 | If the base used is not 10, STRING is always parsed as integer. */) |
5842a27b | 2464 | (register Lisp_Object string, Lisp_Object base) |
7921925c | 2465 | { |
57ace6d0 | 2466 | register char *p; |
342858a5 | 2467 | register int b; |
452f4150 | 2468 | Lisp_Object val; |
25e40a4b | 2469 | |
b7826503 | 2470 | CHECK_STRING (string); |
7921925c | 2471 | |
3883fbeb RS |
2472 | if (NILP (base)) |
2473 | b = 10; | |
2474 | else | |
2475 | { | |
b7826503 | 2476 | CHECK_NUMBER (base); |
3883fbeb RS |
2477 | b = XINT (base); |
2478 | if (b < 2 || b > 16) | |
740ef0b5 | 2479 | xsignal1 (Qargs_out_of_range, base); |
3883fbeb RS |
2480 | } |
2481 | ||
57ace6d0 | 2482 | p = SSDATA (string); |
0a3e4d65 | 2483 | while (*p == ' ' || *p == '\t') |
25e40a4b JB |
2484 | p++; |
2485 | ||
452f4150 PE |
2486 | val = string_to_number (p, b, 1); |
2487 | return NILP (val) ? make_number (0) : val; | |
7921925c | 2488 | } |
7403b5c8 | 2489 | \f |
7921925c | 2490 | enum arithop |
7a283f36 GM |
2491 | { |
2492 | Aadd, | |
2493 | Asub, | |
2494 | Amult, | |
2495 | Adiv, | |
2496 | Alogand, | |
2497 | Alogior, | |
2498 | Alogxor, | |
2499 | Amax, | |
2500 | Amin | |
2501 | }; | |
2502 | ||
f66c7cf8 PE |
2503 | static Lisp_Object float_arith_driver (double, ptrdiff_t, enum arithop, |
2504 | ptrdiff_t, Lisp_Object *); | |
112396d6 | 2505 | static Lisp_Object |
f66c7cf8 | 2506 | arith_driver (enum arithop code, ptrdiff_t nargs, Lisp_Object *args) |
7921925c JB |
2507 | { |
2508 | register Lisp_Object val; | |
f66c7cf8 | 2509 | ptrdiff_t argnum; |
7a283f36 | 2510 | register EMACS_INT accum = 0; |
5260234d | 2511 | register EMACS_INT next; |
7921925c | 2512 | |
0ae6bdee | 2513 | int overflow = 0; |
f66c7cf8 | 2514 | ptrdiff_t ok_args; |
0ae6bdee PE |
2515 | EMACS_INT ok_accum; |
2516 | ||
0220c518 | 2517 | switch (SWITCH_ENUM_CAST (code)) |
7921925c JB |
2518 | { |
2519 | case Alogior: | |
2520 | case Alogxor: | |
2521 | case Aadd: | |
2522 | case Asub: | |
7a283f36 GM |
2523 | accum = 0; |
2524 | break; | |
7921925c | 2525 | case Amult: |
7a283f36 GM |
2526 | accum = 1; |
2527 | break; | |
7921925c | 2528 | case Alogand: |
7a283f36 GM |
2529 | accum = -1; |
2530 | break; | |
2531 | default: | |
2532 | break; | |
7921925c JB |
2533 | } |
2534 | ||
2535 | for (argnum = 0; argnum < nargs; argnum++) | |
2536 | { | |
0ae6bdee PE |
2537 | if (! overflow) |
2538 | { | |
2539 | ok_args = argnum; | |
2540 | ok_accum = accum; | |
2541 | } | |
2542 | ||
7a283f36 GM |
2543 | /* Using args[argnum] as argument to CHECK_NUMBER_... */ |
2544 | val = args[argnum]; | |
b7826503 | 2545 | CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (val); |
7921925c | 2546 | |
7a283f36 | 2547 | if (FLOATP (val)) |
0ae6bdee | 2548 | return float_arith_driver (ok_accum, ok_args, code, |
7a283f36 GM |
2549 | nargs, args); |
2550 | args[argnum] = val; | |
7921925c | 2551 | next = XINT (args[argnum]); |
0220c518 | 2552 | switch (SWITCH_ENUM_CAST (code)) |
7921925c | 2553 | { |
7a283f36 | 2554 | case Aadd: |
0ae6bdee PE |
2555 | if (INT_ADD_OVERFLOW (accum, next)) |
2556 | { | |
2557 | overflow = 1; | |
2558 | accum &= INTMASK; | |
2559 | } | |
7a283f36 GM |
2560 | accum += next; |
2561 | break; | |
7921925c | 2562 | case Asub: |
0ae6bdee PE |
2563 | if (INT_SUBTRACT_OVERFLOW (accum, next)) |
2564 | { | |
2565 | overflow = 1; | |
2566 | accum &= INTMASK; | |
2567 | } | |
e64981da | 2568 | accum = argnum ? accum - next : nargs == 1 ? - next : next; |
7921925c | 2569 | break; |
7a283f36 | 2570 | case Amult: |
0ae6bdee PE |
2571 | if (INT_MULTIPLY_OVERFLOW (accum, next)) |
2572 | { | |
c8a9ca5a | 2573 | EMACS_UINT a = accum, b = next, ab = a * b; |
0ae6bdee | 2574 | overflow = 1; |
c8a9ca5a | 2575 | accum = ab & INTMASK; |
0ae6bdee PE |
2576 | } |
2577 | else | |
2578 | accum *= next; | |
7a283f36 | 2579 | break; |
7921925c | 2580 | case Adiv: |
7a283f36 GM |
2581 | if (!argnum) |
2582 | accum = next; | |
87fbf902 RS |
2583 | else |
2584 | { | |
2585 | if (next == 0) | |
740ef0b5 | 2586 | xsignal0 (Qarith_error); |
87fbf902 RS |
2587 | accum /= next; |
2588 | } | |
7921925c | 2589 | break; |
7a283f36 GM |
2590 | case Alogand: |
2591 | accum &= next; | |
2592 | break; | |
2593 | case Alogior: | |
2594 | accum |= next; | |
2595 | break; | |
2596 | case Alogxor: | |
2597 | accum ^= next; | |
2598 | break; | |
2599 | case Amax: | |
2600 | if (!argnum || next > accum) | |
2601 | accum = next; | |
2602 | break; | |
2603 | case Amin: | |
2604 | if (!argnum || next < accum) | |
2605 | accum = next; | |
2606 | break; | |
7921925c JB |
2607 | } |
2608 | } | |
2609 | ||
f187f1f7 | 2610 | XSETINT (val, accum); |
7921925c JB |
2611 | return val; |
2612 | } | |
2613 | ||
1a2f2d33 KH |
2614 | #undef isnan |
2615 | #define isnan(x) ((x) != (x)) | |
2616 | ||
7a283f36 | 2617 | static Lisp_Object |
f66c7cf8 PE |
2618 | float_arith_driver (double accum, ptrdiff_t argnum, enum arithop code, |
2619 | ptrdiff_t nargs, Lisp_Object *args) | |
7921925c JB |
2620 | { |
2621 | register Lisp_Object val; | |
2622 | double next; | |
7403b5c8 | 2623 | |
7921925c JB |
2624 | for (; argnum < nargs; argnum++) |
2625 | { | |
2626 | val = args[argnum]; /* using args[argnum] as argument to CHECK_NUMBER_... */ | |
b7826503 | 2627 | CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (val); |
7921925c | 2628 | |
e9ebc175 | 2629 | if (FLOATP (val)) |
7921925c | 2630 | { |
7539e11f | 2631 | next = XFLOAT_DATA (val); |
7921925c JB |
2632 | } |
2633 | else | |
2634 | { | |
2635 | args[argnum] = val; /* runs into a compiler bug. */ | |
2636 | next = XINT (args[argnum]); | |
2637 | } | |
0220c518 | 2638 | switch (SWITCH_ENUM_CAST (code)) |
7921925c JB |
2639 | { |
2640 | case Aadd: | |
2641 | accum += next; | |
2642 | break; | |
2643 | case Asub: | |
e64981da | 2644 | accum = argnum ? accum - next : nargs == 1 ? - next : next; |
7921925c JB |
2645 | break; |
2646 | case Amult: | |
2647 | accum *= next; | |
2648 | break; | |
2649 | case Adiv: | |
2650 | if (!argnum) | |
2651 | accum = next; | |
2652 | else | |
87fbf902 | 2653 | { |
ad8d56b9 | 2654 | if (! IEEE_FLOATING_POINT && next == 0) |
740ef0b5 | 2655 | xsignal0 (Qarith_error); |
87fbf902 RS |
2656 | accum /= next; |
2657 | } | |
7921925c JB |
2658 | break; |
2659 | case Alogand: | |
2660 | case Alogior: | |
2661 | case Alogxor: | |
2662 | return wrong_type_argument (Qinteger_or_marker_p, val); | |
2663 | case Amax: | |
1a2f2d33 | 2664 | if (!argnum || isnan (next) || next > accum) |
7921925c JB |
2665 | accum = next; |
2666 | break; | |
2667 | case Amin: | |
1a2f2d33 | 2668 | if (!argnum || isnan (next) || next < accum) |
7921925c JB |
2669 | accum = next; |
2670 | break; | |
2671 | } | |
2672 | } | |
2673 | ||
2674 | return make_float (accum); | |
2675 | } | |
cc94f3b2 | 2676 | |
7921925c | 2677 | |
a7ca3326 | 2678 | DEFUN ("+", Fplus, Splus, 0, MANY, 0, |
8c1a1077 PJ |
2679 | doc: /* Return sum of any number of arguments, which are numbers or markers. |
2680 | usage: (+ &rest NUMBERS-OR-MARKERS) */) | |
f66c7cf8 | 2681 | (ptrdiff_t nargs, Lisp_Object *args) |
7921925c JB |
2682 | { |
2683 | return arith_driver (Aadd, nargs, args); | |
2684 | } | |
2685 | ||
a7ca3326 | 2686 | DEFUN ("-", Fminus, Sminus, 0, MANY, 0, |
558ee900 | 2687 | doc: /* Negate number or subtract numbers or markers and return the result. |
8c1a1077 | 2688 | With one arg, negates it. With more than one arg, |
f44fba9e | 2689 | subtracts all but the first from the first. |
8c1a1077 | 2690 | usage: (- &optional NUMBER-OR-MARKER &rest MORE-NUMBERS-OR-MARKERS) */) |
f66c7cf8 | 2691 | (ptrdiff_t nargs, Lisp_Object *args) |
7921925c JB |
2692 | { |
2693 | return arith_driver (Asub, nargs, args); | |
2694 | } | |
2695 | ||
a7ca3326 | 2696 | DEFUN ("*", Ftimes, Stimes, 0, MANY, 0, |
be24eadf | 2697 | doc: /* Return product of any number of arguments, which are numbers or markers. |
8c1a1077 | 2698 | usage: (* &rest NUMBERS-OR-MARKERS) */) |
f66c7cf8 | 2699 | (ptrdiff_t nargs, Lisp_Object *args) |
7921925c JB |
2700 | { |
2701 | return arith_driver (Amult, nargs, args); | |
2702 | } | |
2703 | ||
a7ca3326 | 2704 | DEFUN ("/", Fquo, Squo, 2, MANY, 0, |
be24eadf | 2705 | doc: /* Return first argument divided by all the remaining arguments. |
f44fba9e | 2706 | The arguments must be numbers or markers. |
8c1a1077 | 2707 | usage: (/ DIVIDEND DIVISOR &rest DIVISORS) */) |
f66c7cf8 | 2708 | (ptrdiff_t nargs, Lisp_Object *args) |
7921925c | 2709 | { |
f66c7cf8 | 2710 | ptrdiff_t argnum; |
7ef98053 | 2711 | for (argnum = 2; argnum < nargs; argnum++) |
28712a21 JB |
2712 | if (FLOATP (args[argnum])) |
2713 | return float_arith_driver (0, 0, Adiv, nargs, args); | |
7921925c JB |
2714 | return arith_driver (Adiv, nargs, args); |
2715 | } | |
2716 | ||
a7ca3326 | 2717 | DEFUN ("%", Frem, Srem, 2, 2, 0, |
be24eadf | 2718 | doc: /* Return remainder of X divided by Y. |
8c1a1077 | 2719 | Both must be integers or markers. */) |
5842a27b | 2720 | (register Lisp_Object x, Lisp_Object y) |
7921925c JB |
2721 | { |
2722 | Lisp_Object val; | |
2723 | ||
b7826503 PJ |
2724 | CHECK_NUMBER_COERCE_MARKER (x); |
2725 | CHECK_NUMBER_COERCE_MARKER (y); | |
7921925c | 2726 | |
d9c2a0f2 | 2727 | if (XFASTINT (y) == 0) |
740ef0b5 | 2728 | xsignal0 (Qarith_error); |
87fbf902 | 2729 | |
d9c2a0f2 | 2730 | XSETINT (val, XINT (x) % XINT (y)); |
7921925c JB |
2731 | return val; |
2732 | } | |
2733 | ||
1d66a5fa KH |
2734 | #ifndef HAVE_FMOD |
2735 | double | |
1dae0f0a | 2736 | fmod (double f1, double f2) |
1d66a5fa | 2737 | { |
bc1c9d7e PE |
2738 | double r = f1; |
2739 | ||
fa43b1e8 KH |
2740 | if (f2 < 0.0) |
2741 | f2 = -f2; | |
bc1c9d7e PE |
2742 | |
2743 | /* If the magnitude of the result exceeds that of the divisor, or | |
2744 | the sign of the result does not agree with that of the dividend, | |
2745 | iterate with the reduced value. This does not yield a | |
2746 | particularly accurate result, but at least it will be in the | |
2747 | range promised by fmod. */ | |
2748 | do | |
2749 | r -= f2 * floor (r / f2); | |
2750 | while (f2 <= (r < 0 ? -r : r) || ((r < 0) != (f1 < 0) && ! isnan (r))); | |
2751 | ||
2752 | return r; | |
1d66a5fa KH |
2753 | } |
2754 | #endif /* ! HAVE_FMOD */ | |
2755 | ||
44fa9da5 | 2756 | DEFUN ("mod", Fmod, Smod, 2, 2, 0, |
be24eadf | 2757 | doc: /* Return X modulo Y. |
8c1a1077 PJ |
2758 | The result falls between zero (inclusive) and Y (exclusive). |
2759 | Both X and Y must be numbers or markers. */) | |
5842a27b | 2760 | (register Lisp_Object x, Lisp_Object y) |
44fa9da5 PE |
2761 | { |
2762 | Lisp_Object val; | |
5260234d | 2763 | EMACS_INT i1, i2; |
44fa9da5 | 2764 | |
b7826503 PJ |
2765 | CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (x); |
2766 | CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (y); | |
44fa9da5 | 2767 | |
d9c2a0f2 | 2768 | if (FLOATP (x) || FLOATP (y)) |
ad8d56b9 PE |
2769 | return fmod_float (x, y); |
2770 | ||
d9c2a0f2 EN |
2771 | i1 = XINT (x); |
2772 | i2 = XINT (y); | |
44fa9da5 PE |
2773 | |
2774 | if (i2 == 0) | |
740ef0b5 | 2775 | xsignal0 (Qarith_error); |
7403b5c8 | 2776 | |
44fa9da5 PE |
2777 | i1 %= i2; |
2778 | ||
2779 | /* If the "remainder" comes out with the wrong sign, fix it. */ | |
04f7ec69 | 2780 | if (i2 < 0 ? i1 > 0 : i1 < 0) |
44fa9da5 PE |
2781 | i1 += i2; |
2782 | ||
f187f1f7 | 2783 | XSETINT (val, i1); |
44fa9da5 PE |
2784 | return val; |
2785 | } | |
2786 | ||
a7ca3326 | 2787 | DEFUN ("max", Fmax, Smax, 1, MANY, 0, |
8c1a1077 | 2788 | doc: /* Return largest of all the arguments (which must be numbers or markers). |
f44fba9e | 2789 | The value is always a number; markers are converted to numbers. |
8c1a1077 | 2790 | usage: (max NUMBER-OR-MARKER &rest NUMBERS-OR-MARKERS) */) |
f66c7cf8 | 2791 | (ptrdiff_t nargs, Lisp_Object *args) |
7921925c JB |
2792 | { |
2793 | return arith_driver (Amax, nargs, args); | |
2794 | } | |
2795 | ||
a7ca3326 | 2796 | DEFUN ("min", Fmin, Smin, 1, MANY, 0, |
8c1a1077 | 2797 | doc: /* Return smallest of all the arguments (which must be numbers or markers). |
f44fba9e | 2798 | The value is always a number; markers are converted to numbers. |
8c1a1077 | 2799 | usage: (min NUMBER-OR-MARKER &rest NUMBERS-OR-MARKERS) */) |
f66c7cf8 | 2800 | (ptrdiff_t nargs, Lisp_Object *args) |
7921925c JB |
2801 | { |
2802 | return arith_driver (Amin, nargs, args); | |
2803 | } | |
2804 | ||
2805 | DEFUN ("logand", Flogand, Slogand, 0, MANY, 0, | |
8c1a1077 | 2806 | doc: /* Return bitwise-and of all the arguments. |
f44fba9e | 2807 | Arguments may be integers, or markers converted to integers. |
8c1a1077 | 2808 | usage: (logand &rest INTS-OR-MARKERS) */) |
f66c7cf8 | 2809 | (ptrdiff_t nargs, Lisp_Object *args) |
7921925c JB |
2810 | { |
2811 | return arith_driver (Alogand, nargs, args); | |
2812 | } | |
2813 | ||
2814 | DEFUN ("logior", Flogior, Slogior, 0, MANY, 0, | |
8c1a1077 | 2815 | doc: /* Return bitwise-or of all the arguments. |
f44fba9e | 2816 | Arguments may be integers, or markers converted to integers. |
8c1a1077 | 2817 | usage: (logior &rest INTS-OR-MARKERS) */) |
f66c7cf8 | 2818 | (ptrdiff_t nargs, Lisp_Object *args) |
7921925c JB |
2819 | { |
2820 | return arith_driver (Alogior, nargs, args); | |
2821 | } | |
2822 | ||
2823 | DEFUN ("logxor", Flogxor, Slogxor, 0, MANY, 0, | |
8c1a1077 | 2824 | doc: /* Return bitwise-exclusive-or of all the arguments. |
f44fba9e | 2825 | Arguments may be integers, or markers converted to integers. |
31fb1b2c | 2826 | usage: (logxor &rest INTS-OR-MARKERS) */) |
f66c7cf8 | 2827 | (ptrdiff_t nargs, Lisp_Object *args) |
7921925c JB |
2828 | { |
2829 | return arith_driver (Alogxor, nargs, args); | |
2830 | } | |
2831 | ||
2832 | DEFUN ("ash", Fash, Sash, 2, 2, 0, | |
8c1a1077 PJ |
2833 | doc: /* Return VALUE with its bits shifted left by COUNT. |
2834 | If COUNT is negative, shifting is actually to the right. | |
2835 | In this case, the sign bit is duplicated. */) | |
5842a27b | 2836 | (register Lisp_Object value, Lisp_Object count) |
7921925c JB |
2837 | { |
2838 | register Lisp_Object val; | |
2839 | ||
b7826503 PJ |
2840 | CHECK_NUMBER (value); |
2841 | CHECK_NUMBER (count); | |
7921925c | 2842 | |
81d70626 RS |
2843 | if (XINT (count) >= BITS_PER_EMACS_INT) |
2844 | XSETINT (val, 0); | |
2845 | else if (XINT (count) > 0) | |
3d9652eb | 2846 | XSETINT (val, XINT (value) << XFASTINT (count)); |
81d70626 RS |
2847 | else if (XINT (count) <= -BITS_PER_EMACS_INT) |
2848 | XSETINT (val, XINT (value) < 0 ? -1 : 0); | |
7921925c | 2849 | else |
3d9652eb | 2850 | XSETINT (val, XINT (value) >> -XINT (count)); |
7921925c JB |
2851 | return val; |
2852 | } | |
2853 | ||
2854 | DEFUN ("lsh", Flsh, Slsh, 2, 2, 0, | |
8c1a1077 PJ |
2855 | doc: /* Return VALUE with its bits shifted left by COUNT. |
2856 | If COUNT is negative, shifting is actually to the right. | |
3a9b1297 | 2857 | In this case, zeros are shifted in on the left. */) |
5842a27b | 2858 | (register Lisp_Object value, Lisp_Object count) |
7921925c JB |
2859 | { |
2860 | register Lisp_Object val; | |
2861 | ||
b7826503 PJ |
2862 | CHECK_NUMBER (value); |
2863 | CHECK_NUMBER (count); | |
7921925c | 2864 | |
81d70626 RS |
2865 | if (XINT (count) >= BITS_PER_EMACS_INT) |
2866 | XSETINT (val, 0); | |
2867 | else if (XINT (count) > 0) | |
c8a9ca5a | 2868 | XSETINT (val, XUINT (value) << XFASTINT (count)); |
81d70626 RS |
2869 | else if (XINT (count) <= -BITS_PER_EMACS_INT) |
2870 | XSETINT (val, 0); | |
7921925c | 2871 | else |
c8a9ca5a | 2872 | XSETINT (val, XUINT (value) >> -XINT (count)); |
7921925c JB |
2873 | return val; |
2874 | } | |
2875 | ||
a7ca3326 | 2876 | DEFUN ("1+", Fadd1, Sadd1, 1, 1, 0, |
8c1a1077 PJ |
2877 | doc: /* Return NUMBER plus one. NUMBER may be a number or a marker. |
2878 | Markers are converted to integers. */) | |
5842a27b | 2879 | (register Lisp_Object number) |
7921925c | 2880 | { |
b7826503 | 2881 | CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (number); |
7921925c | 2882 | |
d9c2a0f2 | 2883 | if (FLOATP (number)) |
7539e11f | 2884 | return (make_float (1.0 + XFLOAT_DATA (number))); |
7921925c | 2885 | |
d9c2a0f2 EN |
2886 | XSETINT (number, XINT (number) + 1); |
2887 | return number; | |
7921925c JB |
2888 | } |
2889 | ||
a7ca3326 | 2890 | DEFUN ("1-", Fsub1, Ssub1, 1, 1, 0, |
8c1a1077 PJ |
2891 | doc: /* Return NUMBER minus one. NUMBER may be a number or a marker. |
2892 | Markers are converted to integers. */) | |
5842a27b | 2893 | (register Lisp_Object number) |
7921925c | 2894 | { |
b7826503 | 2895 | CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (number); |
7921925c | 2896 | |
d9c2a0f2 | 2897 | if (FLOATP (number)) |
7539e11f | 2898 | return (make_float (-1.0 + XFLOAT_DATA (number))); |
7921925c | 2899 | |
d9c2a0f2 EN |
2900 | XSETINT (number, XINT (number) - 1); |
2901 | return number; | |
7921925c JB |
2902 | } |
2903 | ||
2904 | DEFUN ("lognot", Flognot, Slognot, 1, 1, 0, | |
8c1a1077 | 2905 | doc: /* Return the bitwise complement of NUMBER. NUMBER must be an integer. */) |
5842a27b | 2906 | (register Lisp_Object number) |
7921925c | 2907 | { |
b7826503 | 2908 | CHECK_NUMBER (number); |
53924017 | 2909 | XSETINT (number, ~XINT (number)); |
d9c2a0f2 | 2910 | return number; |
7921925c | 2911 | } |
6b61353c | 2912 | |
a7ca3326 | 2913 | DEFUN ("byteorder", Fbyteorder, Sbyteorder, 0, 0, 0, |
6b61353c KH |
2914 | doc: /* Return the byteorder for the machine. |
2915 | Returns 66 (ASCII uppercase B) for big endian machines or 108 (ASCII | |
2916 | lowercase l) for small endian machines. */) | |
5842a27b | 2917 | (void) |
6b61353c KH |
2918 | { |
2919 | unsigned i = 0x04030201; | |
2920 | int order = *(char *)&i == 1 ? 108 : 66; | |
2921 | ||
2922 | return make_number (order); | |
2923 | } | |
2924 | ||
2925 | ||
7921925c JB |
2926 | \f |
2927 | void | |
971de7fb | 2928 | syms_of_data (void) |
7921925c | 2929 | { |
6315e761 RS |
2930 | Lisp_Object error_tail, arith_tail; |
2931 | ||
620c53a6 SM |
2932 | DEFSYM (Qquote, "quote"); |
2933 | DEFSYM (Qlambda, "lambda"); | |
2934 | DEFSYM (Qsubr, "subr"); | |
2935 | DEFSYM (Qerror_conditions, "error-conditions"); | |
2936 | DEFSYM (Qerror_message, "error-message"); | |
2937 | DEFSYM (Qtop_level, "top-level"); | |
2938 | ||
2939 | DEFSYM (Qerror, "error"); | |
2940 | DEFSYM (Qquit, "quit"); | |
2941 | DEFSYM (Qwrong_type_argument, "wrong-type-argument"); | |
2942 | DEFSYM (Qargs_out_of_range, "args-out-of-range"); | |
2943 | DEFSYM (Qvoid_function, "void-function"); | |
2944 | DEFSYM (Qcyclic_function_indirection, "cyclic-function-indirection"); | |
2945 | DEFSYM (Qcyclic_variable_indirection, "cyclic-variable-indirection"); | |
2946 | DEFSYM (Qvoid_variable, "void-variable"); | |
2947 | DEFSYM (Qsetting_constant, "setting-constant"); | |
2948 | DEFSYM (Qinvalid_read_syntax, "invalid-read-syntax"); | |
2949 | ||
2950 | DEFSYM (Qinvalid_function, "invalid-function"); | |
2951 | DEFSYM (Qwrong_number_of_arguments, "wrong-number-of-arguments"); | |
2952 | DEFSYM (Qno_catch, "no-catch"); | |
2953 | DEFSYM (Qend_of_file, "end-of-file"); | |
2954 | DEFSYM (Qarith_error, "arith-error"); | |
2955 | DEFSYM (Qbeginning_of_buffer, "beginning-of-buffer"); | |
2956 | DEFSYM (Qend_of_buffer, "end-of-buffer"); | |
2957 | DEFSYM (Qbuffer_read_only, "buffer-read-only"); | |
2958 | DEFSYM (Qtext_read_only, "text-read-only"); | |
2959 | DEFSYM (Qmark_inactive, "mark-inactive"); | |
2960 | ||
2961 | DEFSYM (Qlistp, "listp"); | |
2962 | DEFSYM (Qconsp, "consp"); | |
2963 | DEFSYM (Qsymbolp, "symbolp"); | |
2964 | DEFSYM (Qkeywordp, "keywordp"); | |
2965 | DEFSYM (Qintegerp, "integerp"); | |
2966 | DEFSYM (Qnatnump, "natnump"); | |
2967 | DEFSYM (Qwholenump, "wholenump"); | |
2968 | DEFSYM (Qstringp, "stringp"); | |
2969 | DEFSYM (Qarrayp, "arrayp"); | |
2970 | DEFSYM (Qsequencep, "sequencep"); | |
2971 | DEFSYM (Qbufferp, "bufferp"); | |
2972 | DEFSYM (Qvectorp, "vectorp"); | |
2973 | DEFSYM (Qchar_or_string_p, "char-or-string-p"); | |
2974 | DEFSYM (Qmarkerp, "markerp"); | |
2975 | DEFSYM (Qbuffer_or_string_p, "buffer-or-string-p"); | |
2976 | DEFSYM (Qinteger_or_marker_p, "integer-or-marker-p"); | |
2977 | DEFSYM (Qboundp, "boundp"); | |
2978 | DEFSYM (Qfboundp, "fboundp"); | |
2979 | ||
2980 | DEFSYM (Qfloatp, "floatp"); | |
2981 | DEFSYM (Qnumberp, "numberp"); | |
2982 | DEFSYM (Qnumber_or_marker_p, "number-or-marker-p"); | |
2983 | ||
2984 | DEFSYM (Qchar_table_p, "char-table-p"); | |
2985 | DEFSYM (Qvector_or_char_table_p, "vector-or-char-table-p"); | |
2986 | ||
2987 | DEFSYM (Qsubrp, "subrp"); | |
2988 | DEFSYM (Qunevalled, "unevalled"); | |
2989 | DEFSYM (Qmany, "many"); | |
2990 | ||
2991 | DEFSYM (Qcdr, "cdr"); | |
2992 | ||
2993 | /* Handle automatic advice activation. */ | |
2994 | DEFSYM (Qad_advice_info, "ad-advice-info"); | |
2995 | DEFSYM (Qad_activate_internal, "ad-activate-internal"); | |
f845f2c9 | 2996 | |
d67b4f80 | 2997 | error_tail = pure_cons (Qerror, Qnil); |
6315e761 | 2998 | |
620c53a6 SM |
2999 | /* ERROR is used as a signaler for random errors for which nothing else is |
3000 | right. */ | |
7921925c JB |
3001 | |
3002 | Fput (Qerror, Qerror_conditions, | |
6315e761 | 3003 | error_tail); |
7921925c | 3004 | Fput (Qerror, Qerror_message, |
d67b4f80 | 3005 | make_pure_c_string ("error")); |
7921925c JB |
3006 | |
3007 | Fput (Qquit, Qerror_conditions, | |
d67b4f80 | 3008 | pure_cons (Qquit, Qnil)); |
7921925c | 3009 | Fput (Qquit, Qerror_message, |
d67b4f80 | 3010 | make_pure_c_string ("Quit")); |
7921925c JB |
3011 | |
3012 | Fput (Qwrong_type_argument, Qerror_conditions, | |
d67b4f80 | 3013 | pure_cons (Qwrong_type_argument, error_tail)); |
7921925c | 3014 | Fput (Qwrong_type_argument, Qerror_message, |
d67b4f80 | 3015 | make_pure_c_string ("Wrong type argument")); |
7921925c JB |
3016 | |
3017 | Fput (Qargs_out_of_range, Qerror_conditions, | |
d67b4f80 | 3018 | pure_cons (Qargs_out_of_range, error_tail)); |
7921925c | 3019 | Fput (Qargs_out_of_range, Qerror_message, |
d67b4f80 | 3020 | make_pure_c_string ("Args out of range")); |
7921925c JB |
3021 | |
3022 | Fput (Qvoid_function, Qerror_conditions, | |
d67b4f80 | 3023 | pure_cons (Qvoid_function, error_tail)); |
7921925c | 3024 | Fput (Qvoid_function, Qerror_message, |
d67b4f80 | 3025 | make_pure_c_string ("Symbol's function definition is void")); |
7921925c | 3026 | |
ffd56f97 | 3027 | Fput (Qcyclic_function_indirection, Qerror_conditions, |
d67b4f80 | 3028 | pure_cons (Qcyclic_function_indirection, error_tail)); |
ffd56f97 | 3029 | Fput (Qcyclic_function_indirection, Qerror_message, |
d67b4f80 | 3030 | make_pure_c_string ("Symbol's chain of function indirections contains a loop")); |
ffd56f97 | 3031 | |
f35d5bad | 3032 | Fput (Qcyclic_variable_indirection, Qerror_conditions, |
d67b4f80 | 3033 | pure_cons (Qcyclic_variable_indirection, error_tail)); |
f35d5bad | 3034 | Fput (Qcyclic_variable_indirection, Qerror_message, |
d67b4f80 | 3035 | make_pure_c_string ("Symbol's chain of variable indirections contains a loop")); |
f35d5bad | 3036 | |
620c53a6 | 3037 | DEFSYM (Qcircular_list, "circular-list"); |
13d95cc0 | 3038 | Fput (Qcircular_list, Qerror_conditions, |
d67b4f80 | 3039 | pure_cons (Qcircular_list, error_tail)); |
13d95cc0 | 3040 | Fput (Qcircular_list, Qerror_message, |
d67b4f80 | 3041 | make_pure_c_string ("List contains a loop")); |
13d95cc0 | 3042 | |
7921925c | 3043 | Fput (Qvoid_variable, Qerror_conditions, |
d67b4f80 | 3044 | pure_cons (Qvoid_variable, error_tail)); |
7921925c | 3045 | Fput (Qvoid_variable, Qerror_message, |
d67b4f80 | 3046 | make_pure_c_string ("Symbol's value as variable is void")); |
7921925c JB |
3047 | |
3048 | Fput (Qsetting_constant, Qerror_conditions, | |
d67b4f80 | 3049 | pure_cons (Qsetting_constant, error_tail)); |
7921925c | 3050 | Fput (Qsetting_constant, Qerror_message, |
d67b4f80 | 3051 | make_pure_c_string ("Attempt to set a constant symbol")); |
7921925c JB |
3052 | |
3053 | Fput (Qinvalid_read_syntax, Qerror_conditions, | |
d67b4f80 | 3054 | pure_cons (Qinvalid_read_syntax, error_tail)); |
7921925c | 3055 | Fput (Qinvalid_read_syntax, Qerror_message, |
d67b4f80 | 3056 | make_pure_c_string ("Invalid read syntax")); |
7921925c JB |
3057 | |
3058 | Fput (Qinvalid_function, Qerror_conditions, | |
d67b4f80 | 3059 | pure_cons (Qinvalid_function, error_tail)); |
7921925c | 3060 | Fput (Qinvalid_function, Qerror_message, |
d67b4f80 | 3061 | make_pure_c_string ("Invalid function")); |
7921925c JB |
3062 | |
3063 | Fput (Qwrong_number_of_arguments, Qerror_conditions, | |
d67b4f80 | 3064 | pure_cons (Qwrong_number_of_arguments, error_tail)); |
7921925c | 3065 | Fput (Qwrong_number_of_arguments, Qerror_message, |
d67b4f80 | 3066 | make_pure_c_string ("Wrong number of arguments")); |
7921925c JB |
3067 | |
3068 | Fput (Qno_catch, Qerror_conditions, | |
d67b4f80 | 3069 | pure_cons (Qno_catch, error_tail)); |
7921925c | 3070 | Fput (Qno_catch, Qerror_message, |
d67b4f80 | 3071 | make_pure_c_string ("No catch for tag")); |
7921925c JB |
3072 | |
3073 | Fput (Qend_of_file, Qerror_conditions, | |
d67b4f80 | 3074 | pure_cons (Qend_of_file, error_tail)); |
7921925c | 3075 | Fput (Qend_of_file, Qerror_message, |
d67b4f80 | 3076 | make_pure_c_string ("End of file during parsing")); |
7921925c | 3077 | |
d67b4f80 | 3078 | arith_tail = pure_cons (Qarith_error, error_tail); |
7921925c | 3079 | Fput (Qarith_error, Qerror_conditions, |
6315e761 | 3080 | arith_tail); |
7921925c | 3081 | Fput (Qarith_error, Qerror_message, |
d67b4f80 | 3082 | make_pure_c_string ("Arithmetic error")); |
7921925c JB |
3083 | |
3084 | Fput (Qbeginning_of_buffer, Qerror_conditions, | |
d67b4f80 | 3085 | pure_cons (Qbeginning_of_buffer, error_tail)); |
7921925c | 3086 | Fput (Qbeginning_of_buffer, Qerror_message, |
d67b4f80 | 3087 | make_pure_c_string ("Beginning of buffer")); |
7921925c JB |
3088 | |
3089 | Fput (Qend_of_buffer, Qerror_conditions, | |
d67b4f80 | 3090 | pure_cons (Qend_of_buffer, error_tail)); |
7921925c | 3091 | Fput (Qend_of_buffer, Qerror_message, |
d67b4f80 | 3092 | make_pure_c_string ("End of buffer")); |
7921925c JB |
3093 | |
3094 | Fput (Qbuffer_read_only, Qerror_conditions, | |
d67b4f80 | 3095 | pure_cons (Qbuffer_read_only, error_tail)); |
7921925c | 3096 | Fput (Qbuffer_read_only, Qerror_message, |
d67b4f80 | 3097 | make_pure_c_string ("Buffer is read-only")); |
7921925c | 3098 | |
8f9f49d7 | 3099 | Fput (Qtext_read_only, Qerror_conditions, |
d67b4f80 | 3100 | pure_cons (Qtext_read_only, error_tail)); |
8f9f49d7 | 3101 | Fput (Qtext_read_only, Qerror_message, |
d67b4f80 | 3102 | make_pure_c_string ("Text is read-only")); |
8f9f49d7 | 3103 | |
620c53a6 SM |
3104 | DEFSYM (Qrange_error, "range-error"); |
3105 | DEFSYM (Qdomain_error, "domain-error"); | |
3106 | DEFSYM (Qsingularity_error, "singularity-error"); | |
3107 | DEFSYM (Qoverflow_error, "overflow-error"); | |
3108 | DEFSYM (Qunderflow_error, "underflow-error"); | |
6315e761 RS |
3109 | |
3110 | Fput (Qdomain_error, Qerror_conditions, | |
d67b4f80 | 3111 | pure_cons (Qdomain_error, arith_tail)); |
6315e761 | 3112 | Fput (Qdomain_error, Qerror_message, |
d67b4f80 | 3113 | make_pure_c_string ("Arithmetic domain error")); |
6315e761 RS |
3114 | |
3115 | Fput (Qrange_error, Qerror_conditions, | |
d67b4f80 | 3116 | pure_cons (Qrange_error, arith_tail)); |
6315e761 | 3117 | Fput (Qrange_error, Qerror_message, |
d67b4f80 | 3118 | make_pure_c_string ("Arithmetic range error")); |
6315e761 RS |
3119 | |
3120 | Fput (Qsingularity_error, Qerror_conditions, | |
d67b4f80 | 3121 | pure_cons (Qsingularity_error, Fcons (Qdomain_error, arith_tail))); |
6315e761 | 3122 | Fput (Qsingularity_error, Qerror_message, |
d67b4f80 | 3123 | make_pure_c_string ("Arithmetic singularity error")); |
6315e761 RS |
3124 | |
3125 | Fput (Qoverflow_error, Qerror_conditions, | |
d67b4f80 | 3126 | pure_cons (Qoverflow_error, Fcons (Qdomain_error, arith_tail))); |
6315e761 | 3127 | Fput (Qoverflow_error, Qerror_message, |
d67b4f80 | 3128 | make_pure_c_string ("Arithmetic overflow error")); |
6315e761 RS |
3129 | |
3130 | Fput (Qunderflow_error, Qerror_conditions, | |
d67b4f80 | 3131 | pure_cons (Qunderflow_error, Fcons (Qdomain_error, arith_tail))); |
6315e761 | 3132 | Fput (Qunderflow_error, Qerror_message, |
d67b4f80 | 3133 | make_pure_c_string ("Arithmetic underflow error")); |
6315e761 | 3134 | |
7921925c JB |
3135 | staticpro (&Qnil); |
3136 | staticpro (&Qt); | |
7921925c | 3137 | staticpro (&Qunbound); |
7921925c | 3138 | |
39bcc759 | 3139 | /* Types that type-of returns. */ |
620c53a6 SM |
3140 | DEFSYM (Qinteger, "integer"); |
3141 | DEFSYM (Qsymbol, "symbol"); | |
3142 | DEFSYM (Qstring, "string"); | |
3143 | DEFSYM (Qcons, "cons"); | |
3144 | DEFSYM (Qmarker, "marker"); | |
3145 | DEFSYM (Qoverlay, "overlay"); | |
3146 | DEFSYM (Qfloat, "float"); | |
3147 | DEFSYM (Qwindow_configuration, "window-configuration"); | |
3148 | DEFSYM (Qprocess, "process"); | |
3149 | DEFSYM (Qwindow, "window"); | |
3150 | /* DEFSYM (Qsubr, "subr"); */ | |
3151 | DEFSYM (Qcompiled_function, "compiled-function"); | |
3152 | DEFSYM (Qbuffer, "buffer"); | |
3153 | DEFSYM (Qframe, "frame"); | |
3154 | DEFSYM (Qvector, "vector"); | |
3155 | DEFSYM (Qchar_table, "char-table"); | |
3156 | DEFSYM (Qbool_vector, "bool-vector"); | |
3157 | DEFSYM (Qhash_table, "hash-table"); | |
39bcc759 | 3158 | |
4e6f2626 CY |
3159 | DEFSYM (Qfont_spec, "font-spec"); |
3160 | DEFSYM (Qfont_entity, "font-entity"); | |
3161 | DEFSYM (Qfont_object, "font-object"); | |
3162 | ||
3860280a CY |
3163 | DEFSYM (Qinteractive_form, "interactive-form"); |
3164 | ||
f35d5bad | 3165 | defsubr (&Sindirect_variable); |
6b61353c | 3166 | defsubr (&Sinteractive_form); |
7921925c JB |
3167 | defsubr (&Seq); |
3168 | defsubr (&Snull); | |
39bcc759 | 3169 | defsubr (&Stype_of); |
7921925c JB |
3170 | defsubr (&Slistp); |
3171 | defsubr (&Snlistp); | |
3172 | defsubr (&Sconsp); | |
3173 | defsubr (&Satom); | |
3174 | defsubr (&Sintegerp); | |
464f8898 | 3175 | defsubr (&Sinteger_or_marker_p); |
7921925c JB |
3176 | defsubr (&Snumberp); |
3177 | defsubr (&Snumber_or_marker_p); | |
464f8898 | 3178 | defsubr (&Sfloatp); |
7921925c JB |
3179 | defsubr (&Snatnump); |
3180 | defsubr (&Ssymbolp); | |
cda9b832 | 3181 | defsubr (&Skeywordp); |
7921925c | 3182 | defsubr (&Sstringp); |
0f56470d | 3183 | defsubr (&Smultibyte_string_p); |
7921925c | 3184 | defsubr (&Svectorp); |
4d276982 | 3185 | defsubr (&Schar_table_p); |
7f0edce7 | 3186 | defsubr (&Svector_or_char_table_p); |
4d276982 | 3187 | defsubr (&Sbool_vector_p); |
7921925c JB |
3188 | defsubr (&Sarrayp); |
3189 | defsubr (&Ssequencep); | |
3190 | defsubr (&Sbufferp); | |
3191 | defsubr (&Smarkerp); | |
7921925c | 3192 | defsubr (&Ssubrp); |
dbc4e1c1 | 3193 | defsubr (&Sbyte_code_function_p); |
7921925c JB |
3194 | defsubr (&Schar_or_string_p); |
3195 | defsubr (&Scar); | |
3196 | defsubr (&Scdr); | |
3197 | defsubr (&Scar_safe); | |
3198 | defsubr (&Scdr_safe); | |
3199 | defsubr (&Ssetcar); | |
3200 | defsubr (&Ssetcdr); | |
3201 | defsubr (&Ssymbol_function); | |
ffd56f97 | 3202 | defsubr (&Sindirect_function); |
7921925c JB |
3203 | defsubr (&Ssymbol_plist); |
3204 | defsubr (&Ssymbol_name); | |
3205 | defsubr (&Smakunbound); | |
3206 | defsubr (&Sfmakunbound); | |
3207 | defsubr (&Sboundp); | |
3208 | defsubr (&Sfboundp); | |
3209 | defsubr (&Sfset); | |
80df38a2 | 3210 | defsubr (&Sdefalias); |
7921925c JB |
3211 | defsubr (&Ssetplist); |
3212 | defsubr (&Ssymbol_value); | |
3213 | defsubr (&Sset); | |
3214 | defsubr (&Sdefault_boundp); | |
3215 | defsubr (&Sdefault_value); | |
3216 | defsubr (&Sset_default); | |
3217 | defsubr (&Ssetq_default); | |
3218 | defsubr (&Smake_variable_buffer_local); | |
3219 | defsubr (&Smake_local_variable); | |
3220 | defsubr (&Skill_local_variable); | |
b0c2d1c6 | 3221 | defsubr (&Smake_variable_frame_local); |
62476adc | 3222 | defsubr (&Slocal_variable_p); |
f4f04cee | 3223 | defsubr (&Slocal_variable_if_set_p); |
6b61353c | 3224 | defsubr (&Svariable_binding_locus); |
c40bb1ba | 3225 | #if 0 /* XXX Remove this. --lorentey */ |
2a42d440 KL |
3226 | defsubr (&Sterminal_local_value); |
3227 | defsubr (&Sset_terminal_local_value); | |
c40bb1ba | 3228 | #endif |
7921925c JB |
3229 | defsubr (&Saref); |
3230 | defsubr (&Saset); | |
f2980264 | 3231 | defsubr (&Snumber_to_string); |
25e40a4b | 3232 | defsubr (&Sstring_to_number); |
7921925c JB |
3233 | defsubr (&Seqlsign); |
3234 | defsubr (&Slss); | |
3235 | defsubr (&Sgtr); | |
3236 | defsubr (&Sleq); | |
3237 | defsubr (&Sgeq); | |
3238 | defsubr (&Sneq); | |
3239 | defsubr (&Szerop); | |
3240 | defsubr (&Splus); | |
3241 | defsubr (&Sminus); | |
3242 | defsubr (&Stimes); | |
3243 | defsubr (&Squo); | |
3244 | defsubr (&Srem); | |
44fa9da5 | 3245 | defsubr (&Smod); |
7921925c JB |
3246 | defsubr (&Smax); |
3247 | defsubr (&Smin); | |
3248 | defsubr (&Slogand); | |
3249 | defsubr (&Slogior); | |
3250 | defsubr (&Slogxor); | |
3251 | defsubr (&Slsh); | |
3252 | defsubr (&Sash); | |
3253 | defsubr (&Sadd1); | |
3254 | defsubr (&Ssub1); | |
3255 | defsubr (&Slognot); | |
6b61353c | 3256 | defsubr (&Sbyteorder); |
6f0e897f | 3257 | defsubr (&Ssubr_arity); |
0fddae66 | 3258 | defsubr (&Ssubr_name); |
8e86942b | 3259 | |
c80bd143 | 3260 | XSYMBOL (Qwholenump)->function = XSYMBOL (Qnatnump)->function; |
e6190b11 | 3261 | |
29208e82 | 3262 | DEFVAR_LISP ("most-positive-fixnum", Vmost_positive_fixnum, |
9d113d9d AS |
3263 | doc: /* The largest value that is representable in a Lisp integer. */); |
3264 | Vmost_positive_fixnum = make_number (MOST_POSITIVE_FIXNUM); | |
d67b4f80 | 3265 | XSYMBOL (intern_c_string ("most-positive-fixnum"))->constant = 1; |
bfb96cb7 | 3266 | |
29208e82 | 3267 | DEFVAR_LISP ("most-negative-fixnum", Vmost_negative_fixnum, |
9d113d9d AS |
3268 | doc: /* The smallest value that is representable in a Lisp integer. */); |
3269 | Vmost_negative_fixnum = make_number (MOST_NEGATIVE_FIXNUM); | |
d67b4f80 | 3270 | XSYMBOL (intern_c_string ("most-negative-fixnum"))->constant = 1; |
7921925c JB |
3271 | } |
3272 | ||
f97334a2 PE |
3273 | #ifndef FORWARD_SIGNAL_TO_MAIN_THREAD |
3274 | static void arith_error (int) NO_RETURN; | |
3275 | #endif | |
3276 | ||
9af30bdf | 3277 | static void |
971de7fb | 3278 | arith_error (int signo) |
7921925c | 3279 | { |
e065a56e | 3280 | sigsetmask (SIGEMPTYMASK); |
7921925c | 3281 | |
333f1b6f | 3282 | SIGNAL_THREAD_CHECK (signo); |
740ef0b5 | 3283 | xsignal0 (Qarith_error); |
7921925c JB |
3284 | } |
3285 | ||
dfcf069d | 3286 | void |
971de7fb | 3287 | init_data (void) |
7921925c JB |
3288 | { |
3289 | /* Don't do this if just dumping out. | |
3290 | We don't want to call `signal' in this case | |
3291 | so that we don't have trouble with dumping | |
3292 | signal-delivering routines in an inconsistent state. */ | |
3293 | #ifndef CANNOT_DUMP | |
3294 | if (!initialized) | |
3295 | return; | |
3296 | #endif /* CANNOT_DUMP */ | |
3297 | signal (SIGFPE, arith_error); | |
7921925c | 3298 | } |