Commit | Line | Data |
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7921925c | 1 | /* Primitive operations on Lisp data types for GNU Emacs Lisp interpreter. |
ba318903 | 2 | Copyright (C) 1985-1986, 1988, 1993-1995, 1997-2014 Free Software |
ab422c4d | 3 | 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> |
dd8daec5 | 22 | #include <stdio.h> |
0ae6bdee | 23 | |
4eed3157 | 24 | #include <byteswap.h> |
595e113b PE |
25 | #include <count-one-bits.h> |
26 | #include <count-trailing-zeros.h> | |
0ae6bdee PE |
27 | #include <intprops.h> |
28 | ||
7921925c | 29 | #include "lisp.h" |
29eab336 | 30 | #include "puresize.h" |
e6e1f521 | 31 | #include "character.h" |
7921925c | 32 | #include "buffer.h" |
077d751f | 33 | #include "keyboard.h" |
b0c2d1c6 | 34 | #include "frame.h" |
a44804c2 | 35 | #include "syssignal.h" |
620c53a6 | 36 | #include "termhooks.h" /* For FRAME_KBOARD reference in y-or-n-p. */ |
4e6f2626 | 37 | #include "font.h" |
61b108cc | 38 | #include "keymap.h" |
fb8e9847 | 39 | |
955cbe7b PE |
40 | Lisp_Object Qnil, Qt, Qquote, Qlambda, Qunbound; |
41 | static Lisp_Object Qsubr; | |
7921925c | 42 | Lisp_Object Qerror_conditions, Qerror_message, Qtop_level; |
71873e2b | 43 | Lisp_Object Qerror, Quser_error, Qquit, Qargs_out_of_range; |
454e2fb9 | 44 | static Lisp_Object Qwrong_length_argument; |
955cbe7b PE |
45 | static Lisp_Object Qwrong_type_argument; |
46 | Lisp_Object Qvoid_variable, Qvoid_function; | |
47 | static Lisp_Object Qcyclic_function_indirection; | |
48 | static Lisp_Object Qcyclic_variable_indirection; | |
49 | Lisp_Object Qcircular_list; | |
50 | static Lisp_Object Qsetting_constant; | |
51 | Lisp_Object Qinvalid_read_syntax; | |
7921925c | 52 | Lisp_Object Qinvalid_function, Qwrong_number_of_arguments, Qno_catch; |
3b8819d6 | 53 | Lisp_Object Qend_of_file, Qarith_error, Qmark_inactive; |
7921925c | 54 | Lisp_Object Qbeginning_of_buffer, Qend_of_buffer, Qbuffer_read_only; |
8f9f49d7 | 55 | Lisp_Object Qtext_read_only; |
6b61353c | 56 | |
2f1205e0 | 57 | Lisp_Object Qintegerp, Qwholenump, Qsymbolp, Qlistp, Qconsp; |
955cbe7b | 58 | static Lisp_Object Qnatnump; |
7921925c JB |
59 | Lisp_Object Qstringp, Qarrayp, Qsequencep, Qbufferp; |
60 | Lisp_Object Qchar_or_string_p, Qmarkerp, Qinteger_or_marker_p, Qvectorp; | |
3e0b94e7 | 61 | Lisp_Object Qbool_vector_p; |
955cbe7b PE |
62 | Lisp_Object Qbuffer_or_string_p; |
63 | static Lisp_Object Qkeywordp, Qboundp; | |
64 | Lisp_Object Qfboundp; | |
7f0edce7 | 65 | Lisp_Object Qchar_table_p, Qvector_or_char_table_p; |
39bcc759 | 66 | |
7921925c | 67 | Lisp_Object Qcdr; |
955cbe7b | 68 | static Lisp_Object Qad_advice_info, Qad_activate_internal; |
7921925c | 69 | |
c990426a PE |
70 | static Lisp_Object Qdomain_error, Qsingularity_error, Qunderflow_error; |
71 | Lisp_Object Qrange_error, Qoverflow_error; | |
6315e761 | 72 | |
464f8898 | 73 | Lisp_Object Qfloatp; |
7921925c | 74 | Lisp_Object Qnumberp, Qnumber_or_marker_p; |
7921925c | 75 | |
b52d6985 PE |
76 | Lisp_Object Qinteger, Qsymbol; |
77 | static Lisp_Object Qcons, Qfloat, Qmisc, Qstring, Qvector; | |
e6cba650 | 78 | Lisp_Object Qwindow; |
3ab6e069 DA |
79 | static Lisp_Object Qoverlay, Qwindow_configuration; |
80 | static Lisp_Object Qprocess, Qmarker; | |
81 | static Lisp_Object Qcompiled_function, Qframe; | |
4b66faf3 | 82 | Lisp_Object Qbuffer; |
81dc5de5 | 83 | static Lisp_Object Qchar_table, Qbool_vector, Qhash_table; |
84575e67 PE |
84 | static Lisp_Object Qsubrp; |
85 | static Lisp_Object Qmany, Qunevalled; | |
4e6f2626 | 86 | Lisp_Object Qfont_spec, Qfont_entity, Qfont_object; |
61b108cc | 87 | static Lisp_Object Qdefun; |
39bcc759 | 88 | |
12cc4337 PE |
89 | Lisp_Object Qinteractive_form; |
90 | static Lisp_Object Qdefalias_fset_function; | |
3860280a | 91 | |
ce5b453a | 92 | static void swap_in_symval_forwarding (struct Lisp_Symbol *, struct Lisp_Buffer_Local_Value *); |
d02eeab3 | 93 | |
84575e67 PE |
94 | static bool |
95 | BOOLFWDP (union Lisp_Fwd *a) | |
96 | { | |
97 | return XFWDTYPE (a) == Lisp_Fwd_Bool; | |
98 | } | |
99 | static bool | |
100 | INTFWDP (union Lisp_Fwd *a) | |
101 | { | |
102 | return XFWDTYPE (a) == Lisp_Fwd_Int; | |
103 | } | |
104 | static bool | |
105 | KBOARD_OBJFWDP (union Lisp_Fwd *a) | |
106 | { | |
107 | return XFWDTYPE (a) == Lisp_Fwd_Kboard_Obj; | |
108 | } | |
109 | static bool | |
110 | OBJFWDP (union Lisp_Fwd *a) | |
111 | { | |
112 | return XFWDTYPE (a) == Lisp_Fwd_Obj; | |
113 | } | |
114 | ||
115 | static struct Lisp_Boolfwd * | |
116 | XBOOLFWD (union Lisp_Fwd *a) | |
117 | { | |
118 | eassert (BOOLFWDP (a)); | |
119 | return &a->u_boolfwd; | |
120 | } | |
121 | static struct Lisp_Kboard_Objfwd * | |
122 | XKBOARD_OBJFWD (union Lisp_Fwd *a) | |
123 | { | |
124 | eassert (KBOARD_OBJFWDP (a)); | |
125 | return &a->u_kboard_objfwd; | |
126 | } | |
127 | static struct Lisp_Intfwd * | |
128 | XINTFWD (union Lisp_Fwd *a) | |
129 | { | |
130 | eassert (INTFWDP (a)); | |
131 | return &a->u_intfwd; | |
132 | } | |
133 | static struct Lisp_Objfwd * | |
134 | XOBJFWD (union Lisp_Fwd *a) | |
135 | { | |
136 | eassert (OBJFWDP (a)); | |
137 | return &a->u_objfwd; | |
138 | } | |
139 | ||
140 | static void | |
141 | CHECK_SUBR (Lisp_Object x) | |
142 | { | |
143 | CHECK_TYPE (SUBRP (x), Qsubrp, x); | |
144 | } | |
145 | ||
146 | static void | |
147 | set_blv_found (struct Lisp_Buffer_Local_Value *blv, int found) | |
148 | { | |
149 | eassert (found == !EQ (blv->defcell, blv->valcell)); | |
150 | blv->found = found; | |
151 | } | |
152 | ||
153 | static Lisp_Object | |
154 | blv_value (struct Lisp_Buffer_Local_Value *blv) | |
155 | { | |
156 | return XCDR (blv->valcell); | |
157 | } | |
158 | ||
159 | static void | |
160 | set_blv_value (struct Lisp_Buffer_Local_Value *blv, Lisp_Object val) | |
161 | { | |
162 | XSETCDR (blv->valcell, val); | |
163 | } | |
164 | ||
165 | static void | |
166 | set_blv_where (struct Lisp_Buffer_Local_Value *blv, Lisp_Object val) | |
167 | { | |
168 | blv->where = val; | |
169 | } | |
170 | ||
171 | static void | |
172 | set_blv_defcell (struct Lisp_Buffer_Local_Value *blv, Lisp_Object val) | |
173 | { | |
174 | blv->defcell = val; | |
175 | } | |
176 | ||
177 | static void | |
178 | set_blv_valcell (struct Lisp_Buffer_Local_Value *blv, Lisp_Object val) | |
179 | { | |
180 | blv->valcell = val; | |
181 | } | |
13d95cc0 | 182 | |
454e2fb9 PE |
183 | static _Noreturn void |
184 | wrong_length_argument (Lisp_Object a1, Lisp_Object a2, Lisp_Object a3) | |
185 | { | |
186 | Lisp_Object size1 = make_number (bool_vector_size (a1)); | |
187 | Lisp_Object size2 = make_number (bool_vector_size (a2)); | |
188 | if (NILP (a3)) | |
189 | xsignal2 (Qwrong_length_argument, size1, size2); | |
190 | else | |
191 | xsignal3 (Qwrong_length_argument, size1, size2, | |
192 | make_number (bool_vector_size (a3))); | |
193 | } | |
194 | ||
7921925c | 195 | Lisp_Object |
971de7fb | 196 | wrong_type_argument (register Lisp_Object predicate, register Lisp_Object value) |
7921925c | 197 | { |
2de9f71c SM |
198 | /* If VALUE is not even a valid Lisp object, we'd want to abort here |
199 | where we can get a backtrace showing where it came from. We used | |
200 | to try and do that by checking the tagbits, but nowadays all | |
201 | tagbits are potentially valid. */ | |
202 | /* if ((unsigned int) XTYPE (value) >= Lisp_Type_Limit) | |
1088b922 | 203 | * emacs_abort (); */ |
e1351ff7 | 204 | |
740ef0b5 | 205 | xsignal2 (Qwrong_type_argument, predicate, value); |
7921925c JB |
206 | } |
207 | ||
7921925c | 208 | void |
971de7fb | 209 | args_out_of_range (Lisp_Object a1, Lisp_Object a2) |
7921925c | 210 | { |
740ef0b5 | 211 | xsignal2 (Qargs_out_of_range, a1, a2); |
7921925c JB |
212 | } |
213 | ||
214 | void | |
971de7fb | 215 | args_out_of_range_3 (Lisp_Object a1, Lisp_Object a2, Lisp_Object a3) |
7921925c | 216 | { |
740ef0b5 | 217 | xsignal3 (Qargs_out_of_range, a1, a2, a3); |
7921925c JB |
218 | } |
219 | ||
7921925c | 220 | \f |
61b108cc | 221 | /* Data type predicates. */ |
7921925c JB |
222 | |
223 | DEFUN ("eq", Feq, Seq, 2, 2, 0, | |
8c1a1077 | 224 | doc: /* Return t if the two args are the same Lisp object. */) |
5842a27b | 225 | (Lisp_Object obj1, Lisp_Object obj2) |
7921925c JB |
226 | { |
227 | if (EQ (obj1, obj2)) | |
228 | return Qt; | |
229 | return Qnil; | |
230 | } | |
231 | ||
8c1a1077 PJ |
232 | DEFUN ("null", Fnull, Snull, 1, 1, 0, |
233 | doc: /* Return t if OBJECT is nil. */) | |
5842a27b | 234 | (Lisp_Object object) |
7921925c | 235 | { |
39bcc759 | 236 | if (NILP (object)) |
7921925c JB |
237 | return Qt; |
238 | return Qnil; | |
239 | } | |
240 | ||
39bcc759 | 241 | DEFUN ("type-of", Ftype_of, Stype_of, 1, 1, 0, |
8c1a1077 PJ |
242 | doc: /* Return a symbol representing the type of OBJECT. |
243 | The symbol returned names the object's basic type; | |
244 | for example, (type-of 1) returns `integer'. */) | |
5842a27b | 245 | (Lisp_Object object) |
39bcc759 | 246 | { |
55a1744a BT |
247 | if (INTEGERP (object)) |
248 | return Qinteger; | |
249 | else if (SYMBOLP (object)) | |
250 | return Qsymbol; | |
251 | else if (STRINGP (object)) | |
252 | return Qstring; | |
253 | else if (CONSP (object)) | |
254 | return Qcons; | |
255 | else if (MISCP (object)) | |
39bcc759 | 256 | { |
324a6eef | 257 | switch (XMISCTYPE (object)) |
39bcc759 RS |
258 | { |
259 | case Lisp_Misc_Marker: | |
260 | return Qmarker; | |
261 | case Lisp_Misc_Overlay: | |
262 | return Qoverlay; | |
263 | case Lisp_Misc_Float: | |
264 | return Qfloat; | |
265 | } | |
1088b922 | 266 | emacs_abort (); |
55a1744a BT |
267 | } |
268 | else if (VECTORLIKEP (object)) | |
269 | { | |
8e50cc2d | 270 | if (WINDOW_CONFIGURATIONP (object)) |
39bcc759 | 271 | return Qwindow_configuration; |
8e50cc2d | 272 | if (PROCESSP (object)) |
39bcc759 | 273 | return Qprocess; |
8e50cc2d | 274 | if (WINDOWP (object)) |
39bcc759 | 275 | return Qwindow; |
8e50cc2d | 276 | if (SUBRP (object)) |
39bcc759 | 277 | return Qsubr; |
876c194c SM |
278 | if (COMPILEDP (object)) |
279 | return Qcompiled_function; | |
8e50cc2d | 280 | if (BUFFERP (object)) |
39bcc759 | 281 | return Qbuffer; |
8e50cc2d | 282 | if (CHAR_TABLE_P (object)) |
fc67d5be | 283 | return Qchar_table; |
8e50cc2d | 284 | if (BOOL_VECTOR_P (object)) |
fc67d5be | 285 | return Qbool_vector; |
8e50cc2d | 286 | if (FRAMEP (object)) |
39bcc759 | 287 | return Qframe; |
8e50cc2d | 288 | if (HASH_TABLE_P (object)) |
81dc5de5 | 289 | return Qhash_table; |
4e6f2626 CY |
290 | if (FONT_SPEC_P (object)) |
291 | return Qfont_spec; | |
292 | if (FONT_ENTITY_P (object)) | |
293 | return Qfont_entity; | |
294 | if (FONT_OBJECT_P (object)) | |
295 | return Qfont_object; | |
39bcc759 | 296 | return Qvector; |
39bcc759 | 297 | } |
55a1744a BT |
298 | else if (FLOATP (object)) |
299 | return Qfloat; | |
300 | else | |
301 | return Qt; | |
39bcc759 RS |
302 | } |
303 | ||
8c1a1077 PJ |
304 | DEFUN ("consp", Fconsp, Sconsp, 1, 1, 0, |
305 | doc: /* Return t if OBJECT is a cons cell. */) | |
5842a27b | 306 | (Lisp_Object object) |
7921925c | 307 | { |
39bcc759 | 308 | if (CONSP (object)) |
7921925c JB |
309 | return Qt; |
310 | return Qnil; | |
311 | } | |
312 | ||
25638b07 | 313 | DEFUN ("atom", Fatom, Satom, 1, 1, 0, |
8c1a1077 | 314 | doc: /* Return t if OBJECT is not a cons cell. This includes nil. */) |
5842a27b | 315 | (Lisp_Object object) |
7921925c | 316 | { |
39bcc759 | 317 | if (CONSP (object)) |
7921925c JB |
318 | return Qnil; |
319 | return Qt; | |
320 | } | |
321 | ||
25638b07 | 322 | DEFUN ("listp", Flistp, Slistp, 1, 1, 0, |
4cdcdcc9 LT |
323 | doc: /* Return t if OBJECT is a list, that is, a cons cell or nil. |
324 | Otherwise, return nil. */) | |
5842a27b | 325 | (Lisp_Object object) |
7921925c | 326 | { |
39bcc759 | 327 | if (CONSP (object) || NILP (object)) |
7921925c JB |
328 | return Qt; |
329 | return Qnil; | |
330 | } | |
331 | ||
25638b07 | 332 | DEFUN ("nlistp", Fnlistp, Snlistp, 1, 1, 0, |
8c1a1077 | 333 | doc: /* Return t if OBJECT is not a list. Lists include nil. */) |
5842a27b | 334 | (Lisp_Object object) |
7921925c | 335 | { |
39bcc759 | 336 | if (CONSP (object) || NILP (object)) |
7921925c JB |
337 | return Qnil; |
338 | return Qt; | |
339 | } | |
340 | \f | |
25638b07 | 341 | DEFUN ("symbolp", Fsymbolp, Ssymbolp, 1, 1, 0, |
8c1a1077 | 342 | doc: /* Return t if OBJECT is a symbol. */) |
5842a27b | 343 | (Lisp_Object object) |
7921925c | 344 | { |
39bcc759 | 345 | if (SYMBOLP (object)) |
7921925c JB |
346 | return Qt; |
347 | return Qnil; | |
348 | } | |
349 | ||
cda9b832 DL |
350 | /* Define this in C to avoid unnecessarily consing up the symbol |
351 | name. */ | |
352 | DEFUN ("keywordp", Fkeywordp, Skeywordp, 1, 1, 0, | |
8c1a1077 PJ |
353 | doc: /* Return t if OBJECT is a keyword. |
354 | This means that it is a symbol with a print name beginning with `:' | |
355 | interned in the initial obarray. */) | |
5842a27b | 356 | (Lisp_Object object) |
cda9b832 DL |
357 | { |
358 | if (SYMBOLP (object) | |
d5db4077 | 359 | && SREF (SYMBOL_NAME (object), 0) == ':' |
f35d5bad | 360 | && SYMBOL_INTERNED_IN_INITIAL_OBARRAY_P (object)) |
cda9b832 DL |
361 | return Qt; |
362 | return Qnil; | |
363 | } | |
364 | ||
25638b07 | 365 | DEFUN ("vectorp", Fvectorp, Svectorp, 1, 1, 0, |
8c1a1077 | 366 | doc: /* Return t if OBJECT is a vector. */) |
5842a27b | 367 | (Lisp_Object object) |
7921925c | 368 | { |
39bcc759 | 369 | if (VECTORP (object)) |
7921925c JB |
370 | return Qt; |
371 | return Qnil; | |
372 | } | |
373 | ||
25638b07 | 374 | DEFUN ("stringp", Fstringp, Sstringp, 1, 1, 0, |
8c1a1077 | 375 | doc: /* Return t if OBJECT is a string. */) |
5842a27b | 376 | (Lisp_Object object) |
7921925c | 377 | { |
39bcc759 | 378 | if (STRINGP (object)) |
7921925c JB |
379 | return Qt; |
380 | return Qnil; | |
381 | } | |
382 | ||
25638b07 | 383 | DEFUN ("multibyte-string-p", Fmultibyte_string_p, Smultibyte_string_p, |
8c1a1077 | 384 | 1, 1, 0, |
3323c263 EZ |
385 | doc: /* Return t if OBJECT is a multibyte string. |
386 | Return nil if OBJECT is either a unibyte string, or not a string. */) | |
5842a27b | 387 | (Lisp_Object object) |
25638b07 RS |
388 | { |
389 | if (STRINGP (object) && STRING_MULTIBYTE (object)) | |
390 | return Qt; | |
391 | return Qnil; | |
392 | } | |
393 | ||
394 | DEFUN ("char-table-p", Fchar_table_p, Schar_table_p, 1, 1, 0, | |
8c1a1077 | 395 | doc: /* Return t if OBJECT is a char-table. */) |
5842a27b | 396 | (Lisp_Object object) |
4d276982 RS |
397 | { |
398 | if (CHAR_TABLE_P (object)) | |
399 | return Qt; | |
400 | return Qnil; | |
401 | } | |
402 | ||
7f0edce7 RS |
403 | DEFUN ("vector-or-char-table-p", Fvector_or_char_table_p, |
404 | Svector_or_char_table_p, 1, 1, 0, | |
8c1a1077 | 405 | doc: /* Return t if OBJECT is a char-table or vector. */) |
5842a27b | 406 | (Lisp_Object object) |
7f0edce7 RS |
407 | { |
408 | if (VECTORP (object) || CHAR_TABLE_P (object)) | |
409 | return Qt; | |
410 | return Qnil; | |
411 | } | |
412 | ||
8c1a1077 PJ |
413 | DEFUN ("bool-vector-p", Fbool_vector_p, Sbool_vector_p, 1, 1, 0, |
414 | doc: /* Return t if OBJECT is a bool-vector. */) | |
5842a27b | 415 | (Lisp_Object object) |
4d276982 RS |
416 | { |
417 | if (BOOL_VECTOR_P (object)) | |
418 | return Qt; | |
419 | return Qnil; | |
420 | } | |
421 | ||
8c1a1077 PJ |
422 | DEFUN ("arrayp", Farrayp, Sarrayp, 1, 1, 0, |
423 | doc: /* Return t if OBJECT is an array (string or vector). */) | |
5842a27b | 424 | (Lisp_Object object) |
7921925c | 425 | { |
0c64a8cd | 426 | if (ARRAYP (object)) |
7921925c JB |
427 | return Qt; |
428 | return Qnil; | |
429 | } | |
430 | ||
431 | DEFUN ("sequencep", Fsequencep, Ssequencep, 1, 1, 0, | |
8c1a1077 | 432 | doc: /* Return t if OBJECT is a sequence (list or array). */) |
5842a27b | 433 | (register Lisp_Object object) |
7921925c | 434 | { |
0c64a8cd | 435 | if (CONSP (object) || NILP (object) || ARRAYP (object)) |
7921925c JB |
436 | return Qt; |
437 | return Qnil; | |
438 | } | |
439 | ||
8c1a1077 PJ |
440 | DEFUN ("bufferp", Fbufferp, Sbufferp, 1, 1, 0, |
441 | doc: /* Return t if OBJECT is an editor buffer. */) | |
5842a27b | 442 | (Lisp_Object object) |
7921925c | 443 | { |
39bcc759 | 444 | if (BUFFERP (object)) |
7921925c JB |
445 | return Qt; |
446 | return Qnil; | |
447 | } | |
448 | ||
8c1a1077 PJ |
449 | DEFUN ("markerp", Fmarkerp, Smarkerp, 1, 1, 0, |
450 | doc: /* Return t if OBJECT is a marker (editor pointer). */) | |
5842a27b | 451 | (Lisp_Object object) |
7921925c | 452 | { |
39bcc759 | 453 | if (MARKERP (object)) |
7921925c JB |
454 | return Qt; |
455 | return Qnil; | |
456 | } | |
457 | ||
8c1a1077 PJ |
458 | DEFUN ("subrp", Fsubrp, Ssubrp, 1, 1, 0, |
459 | doc: /* Return t if OBJECT is a built-in function. */) | |
5842a27b | 460 | (Lisp_Object object) |
7921925c | 461 | { |
39bcc759 | 462 | if (SUBRP (object)) |
7921925c JB |
463 | return Qt; |
464 | return Qnil; | |
465 | } | |
466 | ||
dbc4e1c1 | 467 | DEFUN ("byte-code-function-p", Fbyte_code_function_p, Sbyte_code_function_p, |
8c1a1077 PJ |
468 | 1, 1, 0, |
469 | doc: /* Return t if OBJECT is a byte-compiled function object. */) | |
5842a27b | 470 | (Lisp_Object object) |
7921925c | 471 | { |
39bcc759 | 472 | if (COMPILEDP (object)) |
7921925c JB |
473 | return Qt; |
474 | return Qnil; | |
475 | } | |
476 | ||
0321d75c | 477 | DEFUN ("char-or-string-p", Fchar_or_string_p, Schar_or_string_p, 1, 1, 0, |
8637f5ee | 478 | doc: /* Return t if OBJECT is a character or a string. */) |
5842a27b | 479 | (register Lisp_Object object) |
7921925c | 480 | { |
cfd70f33 | 481 | if (CHARACTERP (object) || STRINGP (object)) |
7921925c JB |
482 | return Qt; |
483 | return Qnil; | |
484 | } | |
485 | \f | |
8c1a1077 PJ |
486 | DEFUN ("integerp", Fintegerp, Sintegerp, 1, 1, 0, |
487 | doc: /* Return t if OBJECT is an integer. */) | |
5842a27b | 488 | (Lisp_Object object) |
7921925c | 489 | { |
39bcc759 | 490 | if (INTEGERP (object)) |
7921925c JB |
491 | return Qt; |
492 | return Qnil; | |
493 | } | |
494 | ||
464f8898 | 495 | DEFUN ("integer-or-marker-p", Finteger_or_marker_p, Sinteger_or_marker_p, 1, 1, 0, |
8c1a1077 | 496 | doc: /* Return t if OBJECT is an integer or a marker (editor pointer). */) |
5842a27b | 497 | (register Lisp_Object object) |
7921925c | 498 | { |
39bcc759 | 499 | if (MARKERP (object) || INTEGERP (object)) |
7921925c JB |
500 | return Qt; |
501 | return Qnil; | |
502 | } | |
503 | ||
0321d75c | 504 | DEFUN ("natnump", Fnatnump, Snatnump, 1, 1, 0, |
8c1a1077 | 505 | doc: /* Return t if OBJECT is a nonnegative integer. */) |
5842a27b | 506 | (Lisp_Object object) |
7921925c | 507 | { |
39bcc759 | 508 | if (NATNUMP (object)) |
7921925c JB |
509 | return Qt; |
510 | return Qnil; | |
511 | } | |
512 | ||
513 | DEFUN ("numberp", Fnumberp, Snumberp, 1, 1, 0, | |
8c1a1077 | 514 | doc: /* Return t if OBJECT is a number (floating point or integer). */) |
5842a27b | 515 | (Lisp_Object object) |
7921925c | 516 | { |
39bcc759 | 517 | if (NUMBERP (object)) |
7921925c | 518 | return Qt; |
dbc4e1c1 JB |
519 | else |
520 | return Qnil; | |
7921925c JB |
521 | } |
522 | ||
523 | DEFUN ("number-or-marker-p", Fnumber_or_marker_p, | |
524 | Snumber_or_marker_p, 1, 1, 0, | |
8c1a1077 | 525 | doc: /* Return t if OBJECT is a number or a marker. */) |
5842a27b | 526 | (Lisp_Object object) |
7921925c | 527 | { |
39bcc759 | 528 | if (NUMBERP (object) || MARKERP (object)) |
7921925c JB |
529 | return Qt; |
530 | return Qnil; | |
531 | } | |
464f8898 | 532 | |
464f8898 | 533 | DEFUN ("floatp", Ffloatp, Sfloatp, 1, 1, 0, |
8c1a1077 | 534 | doc: /* Return t if OBJECT is a floating point number. */) |
5842a27b | 535 | (Lisp_Object object) |
464f8898 | 536 | { |
39bcc759 | 537 | if (FLOATP (object)) |
464f8898 RS |
538 | return Qt; |
539 | return Qnil; | |
540 | } | |
cc94f3b2 | 541 | |
7921925c | 542 | \f |
32e5c58c | 543 | /* Extract and set components of lists. */ |
7921925c | 544 | |
a7ca3326 | 545 | DEFUN ("car", Fcar, Scar, 1, 1, 0, |
8c1a1077 | 546 | doc: /* Return the car of LIST. If arg is nil, return nil. |
9701c742 LT |
547 | Error if arg is not nil and not a cons cell. See also `car-safe'. |
548 | ||
da46c5be LT |
549 | See Info node `(elisp)Cons Cells' for a discussion of related basic |
550 | Lisp concepts such as car, cdr, cons cell and list. */) | |
5842a27b | 551 | (register Lisp_Object list) |
7921925c | 552 | { |
0c64a8cd | 553 | return CAR (list); |
7921925c JB |
554 | } |
555 | ||
a7ca3326 | 556 | DEFUN ("car-safe", Fcar_safe, Scar_safe, 1, 1, 0, |
8c1a1077 | 557 | doc: /* Return the car of OBJECT if it is a cons cell, or else nil. */) |
5842a27b | 558 | (Lisp_Object object) |
7921925c | 559 | { |
0c64a8cd | 560 | return CAR_SAFE (object); |
7921925c JB |
561 | } |
562 | ||
a7ca3326 | 563 | DEFUN ("cdr", Fcdr, Scdr, 1, 1, 0, |
8c1a1077 | 564 | doc: /* Return the cdr of LIST. If arg is nil, return nil. |
9701c742 LT |
565 | Error if arg is not nil and not a cons cell. See also `cdr-safe'. |
566 | ||
da46c5be LT |
567 | See Info node `(elisp)Cons Cells' for a discussion of related basic |
568 | Lisp concepts such as cdr, car, cons cell and list. */) | |
5842a27b | 569 | (register Lisp_Object list) |
7921925c | 570 | { |
0c64a8cd | 571 | return CDR (list); |
7921925c JB |
572 | } |
573 | ||
a7ca3326 | 574 | DEFUN ("cdr-safe", Fcdr_safe, Scdr_safe, 1, 1, 0, |
8c1a1077 | 575 | doc: /* Return the cdr of OBJECT if it is a cons cell, or else nil. */) |
5842a27b | 576 | (Lisp_Object object) |
7921925c | 577 | { |
0c64a8cd | 578 | return CDR_SAFE (object); |
7921925c JB |
579 | } |
580 | ||
a7ca3326 | 581 | DEFUN ("setcar", Fsetcar, Ssetcar, 2, 2, 0, |
8c1a1077 | 582 | doc: /* Set the car of CELL to be NEWCAR. Returns NEWCAR. */) |
5842a27b | 583 | (register Lisp_Object cell, Lisp_Object newcar) |
7921925c | 584 | { |
0c64a8cd | 585 | CHECK_CONS (cell); |
7921925c | 586 | CHECK_IMPURE (cell); |
f3fbd155 | 587 | XSETCAR (cell, newcar); |
7921925c JB |
588 | return newcar; |
589 | } | |
590 | ||
a7ca3326 | 591 | DEFUN ("setcdr", Fsetcdr, Ssetcdr, 2, 2, 0, |
8c1a1077 | 592 | doc: /* Set the cdr of CELL to be NEWCDR. Returns NEWCDR. */) |
5842a27b | 593 | (register Lisp_Object cell, Lisp_Object newcdr) |
7921925c | 594 | { |
0c64a8cd | 595 | CHECK_CONS (cell); |
7921925c | 596 | CHECK_IMPURE (cell); |
f3fbd155 | 597 | XSETCDR (cell, newcdr); |
7921925c JB |
598 | return newcdr; |
599 | } | |
600 | \f | |
1ec4b7b2 | 601 | /* Extract and set components of symbols. */ |
7921925c | 602 | |
a7ca3326 | 603 | DEFUN ("boundp", Fboundp, Sboundp, 1, 1, 0, |
a9de9f0c GM |
604 | doc: /* Return t if SYMBOL's value is not void. |
605 | Note that if `lexical-binding' is in effect, this refers to the | |
606 | global value outside of any lexical scope. */) | |
5842a27b | 607 | (register Lisp_Object symbol) |
7921925c JB |
608 | { |
609 | Lisp_Object valcontents; | |
ce5b453a | 610 | struct Lisp_Symbol *sym; |
b7826503 | 611 | CHECK_SYMBOL (symbol); |
ce5b453a | 612 | sym = XSYMBOL (symbol); |
7921925c | 613 | |
ce5b453a SM |
614 | start: |
615 | switch (sym->redirect) | |
616 | { | |
617 | case SYMBOL_PLAINVAL: valcontents = SYMBOL_VAL (sym); break; | |
618 | case SYMBOL_VARALIAS: sym = indirect_variable (sym); goto start; | |
619 | case SYMBOL_LOCALIZED: | |
620 | { | |
621 | struct Lisp_Buffer_Local_Value *blv = SYMBOL_BLV (sym); | |
622 | if (blv->fwd) | |
623 | /* In set_internal, we un-forward vars when their value is | |
7be68de5 | 624 | set to Qunbound. */ |
ce5b453a SM |
625 | return Qt; |
626 | else | |
627 | { | |
628 | swap_in_symval_forwarding (sym, blv); | |
a04e2c62 | 629 | valcontents = blv_value (blv); |
ce5b453a SM |
630 | } |
631 | break; | |
632 | } | |
633 | case SYMBOL_FORWARDED: | |
634 | /* In set_internal, we un-forward vars when their value is | |
7be68de5 | 635 | set to Qunbound. */ |
ce5b453a | 636 | return Qt; |
1088b922 | 637 | default: emacs_abort (); |
ce5b453a | 638 | } |
7921925c | 639 | |
1bfcade3 | 640 | return (EQ (valcontents, Qunbound) ? Qnil : Qt); |
7921925c JB |
641 | } |
642 | ||
eadf1faa | 643 | /* FIXME: Make it an alias for function-symbol! */ |
a7ca3326 | 644 | DEFUN ("fboundp", Ffboundp, Sfboundp, 1, 1, 0, |
8c1a1077 | 645 | doc: /* Return t if SYMBOL's function definition is not void. */) |
5842a27b | 646 | (register Lisp_Object symbol) |
7921925c | 647 | { |
b7826503 | 648 | CHECK_SYMBOL (symbol); |
eadf1faa | 649 | return NILP (XSYMBOL (symbol)->function) ? Qnil : Qt; |
7921925c JB |
650 | } |
651 | ||
8c1a1077 | 652 | DEFUN ("makunbound", Fmakunbound, Smakunbound, 1, 1, 0, |
bfb96cb7 FP |
653 | doc: /* Make SYMBOL's value be void. |
654 | Return SYMBOL. */) | |
5842a27b | 655 | (register Lisp_Object symbol) |
7921925c | 656 | { |
b7826503 | 657 | CHECK_SYMBOL (symbol); |
64ec26d6 | 658 | if (SYMBOL_CONSTANT_P (symbol)) |
740ef0b5 | 659 | xsignal1 (Qsetting_constant, symbol); |
d9c2a0f2 EN |
660 | Fset (symbol, Qunbound); |
661 | return symbol; | |
7921925c JB |
662 | } |
663 | ||
8c1a1077 | 664 | DEFUN ("fmakunbound", Ffmakunbound, Sfmakunbound, 1, 1, 0, |
eadf1faa | 665 | doc: /* Make SYMBOL's function definition be nil. |
bfb96cb7 | 666 | Return SYMBOL. */) |
5842a27b | 667 | (register Lisp_Object symbol) |
7921925c | 668 | { |
b7826503 | 669 | CHECK_SYMBOL (symbol); |
d9c2a0f2 | 670 | if (NILP (symbol) || EQ (symbol, Qt)) |
740ef0b5 | 671 | xsignal1 (Qsetting_constant, symbol); |
eadf1faa | 672 | set_symbol_function (symbol, Qnil); |
d9c2a0f2 | 673 | return symbol; |
7921925c JB |
674 | } |
675 | ||
a7ca3326 | 676 | DEFUN ("symbol-function", Fsymbol_function, Ssymbol_function, 1, 1, 0, |
0f1d2934 | 677 | doc: /* Return SYMBOL's function definition, or nil if that is void. */) |
5842a27b | 678 | (register Lisp_Object symbol) |
7921925c | 679 | { |
b7826503 | 680 | CHECK_SYMBOL (symbol); |
39a035e8 | 681 | return XSYMBOL (symbol)->function; |
7921925c JB |
682 | } |
683 | ||
8c1a1077 PJ |
684 | DEFUN ("symbol-plist", Fsymbol_plist, Ssymbol_plist, 1, 1, 0, |
685 | doc: /* Return SYMBOL's property list. */) | |
5842a27b | 686 | (register Lisp_Object symbol) |
7921925c | 687 | { |
b7826503 | 688 | CHECK_SYMBOL (symbol); |
c644523b | 689 | return XSYMBOL (symbol)->plist; |
7921925c JB |
690 | } |
691 | ||
a7ca3326 | 692 | DEFUN ("symbol-name", Fsymbol_name, Ssymbol_name, 1, 1, 0, |
8c1a1077 | 693 | doc: /* Return SYMBOL's name, a string. */) |
5842a27b | 694 | (register Lisp_Object symbol) |
7921925c JB |
695 | { |
696 | register Lisp_Object name; | |
697 | ||
b7826503 | 698 | CHECK_SYMBOL (symbol); |
84023177 | 699 | name = SYMBOL_NAME (symbol); |
7921925c JB |
700 | return name; |
701 | } | |
702 | ||
a7ca3326 | 703 | DEFUN ("fset", Ffset, Sfset, 2, 2, 0, |
8c1a1077 | 704 | doc: /* Set SYMBOL's function definition to DEFINITION, and return DEFINITION. */) |
5842a27b | 705 | (register Lisp_Object symbol, Lisp_Object definition) |
d9c2a0f2 | 706 | { |
764ea377 | 707 | register Lisp_Object function; |
b7826503 | 708 | CHECK_SYMBOL (symbol); |
764ea377 | 709 | |
c644523b | 710 | function = XSYMBOL (symbol)->function; |
764ea377 | 711 | |
eadf1faa | 712 | if (!NILP (Vautoload_queue) && !NILP (function)) |
764ea377 JB |
713 | Vautoload_queue = Fcons (Fcons (symbol, function), Vautoload_queue); |
714 | ||
32e5c58c | 715 | if (AUTOLOADP (function)) |
764ea377 JB |
716 | Fput (symbol, Qautoload, XCDR (function)); |
717 | ||
01ae0fbf DC |
718 | /* Convert to eassert or remove after GC bug is found. In the |
719 | meantime, check unconditionally, at a slight perf hit. */ | |
720 | if (valid_lisp_object_p (definition) < 1) | |
721 | emacs_abort (); | |
722 | ||
c644523b | 723 | set_symbol_function (symbol, definition); |
32e5c58c | 724 | |
8c0b5540 | 725 | return definition; |
7921925c JB |
726 | } |
727 | ||
d2fde41d | 728 | DEFUN ("defalias", Fdefalias, Sdefalias, 2, 3, 0, |
1053a871 | 729 | doc: /* Set SYMBOL's function definition to DEFINITION. |
96143227 RS |
730 | Associates the function with the current load file, if any. |
731 | The optional third argument DOCSTRING specifies the documentation string | |
732 | for SYMBOL; if it is omitted or nil, SYMBOL uses the documentation string | |
1053a871 | 733 | determined by DEFINITION. |
189e7007 GM |
734 | |
735 | Internally, this normally uses `fset', but if SYMBOL has a | |
736 | `defalias-fset-function' property, the associated value is used instead. | |
737 | ||
1053a871 | 738 | The return value is undefined. */) |
5842a27b | 739 | (register Lisp_Object symbol, Lisp_Object definition, Lisp_Object docstring) |
fc08c367 | 740 | { |
8a658a52 | 741 | CHECK_SYMBOL (symbol); |
61b108cc SM |
742 | if (!NILP (Vpurify_flag) |
743 | /* If `definition' is a keymap, immutable (and copying) is wrong. */ | |
744 | && !KEYMAPP (definition)) | |
745 | definition = Fpurecopy (definition); | |
32e5c58c SM |
746 | |
747 | { | |
748 | bool autoload = AUTOLOADP (definition); | |
749 | if (NILP (Vpurify_flag) || !autoload) | |
750 | { /* Only add autoload entries after dumping, because the ones before are | |
751 | not useful and else we get loads of them from the loaddefs.el. */ | |
752 | ||
753 | if (AUTOLOADP (XSYMBOL (symbol)->function)) | |
754 | /* Remember that the function was already an autoload. */ | |
755 | LOADHIST_ATTACH (Fcons (Qt, symbol)); | |
756 | LOADHIST_ATTACH (Fcons (autoload ? Qautoload : Qdefun, symbol)); | |
757 | } | |
758 | } | |
759 | ||
760 | { /* Handle automatic advice activation. */ | |
761 | Lisp_Object hook = Fget (symbol, Qdefalias_fset_function); | |
762 | if (!NILP (hook)) | |
763 | call2 (hook, symbol, definition); | |
764 | else | |
765 | Ffset (symbol, definition); | |
766 | } | |
767 | ||
d2fde41d SM |
768 | if (!NILP (docstring)) |
769 | Fput (symbol, Qfunction_documentation, docstring); | |
1053a871 SM |
770 | /* We used to return `definition', but now that `defun' and `defmacro' expand |
771 | to a call to `defalias', we return `symbol' for backward compatibility | |
772 | (bug#11686). */ | |
773 | return symbol; | |
fc08c367 RS |
774 | } |
775 | ||
7921925c | 776 | DEFUN ("setplist", Fsetplist, Ssetplist, 2, 2, 0, |
6b61353c | 777 | doc: /* Set SYMBOL's property list to NEWPLIST, and return NEWPLIST. */) |
5842a27b | 778 | (register Lisp_Object symbol, Lisp_Object newplist) |
7921925c | 779 | { |
b7826503 | 780 | CHECK_SYMBOL (symbol); |
c644523b | 781 | set_symbol_plist (symbol, newplist); |
7921925c JB |
782 | return newplist; |
783 | } | |
ffd56f97 | 784 | |
6f0e897f | 785 | DEFUN ("subr-arity", Fsubr_arity, Ssubr_arity, 1, 1, 0, |
8c1a1077 PJ |
786 | doc: /* Return minimum and maximum number of args allowed for SUBR. |
787 | SUBR must be a built-in function. | |
788 | The returned value is a pair (MIN . MAX). MIN is the minimum number | |
789 | of args. MAX is the maximum number or the symbol `many', for a | |
790 | function with `&rest' args, or `unevalled' for a special form. */) | |
5842a27b | 791 | (Lisp_Object subr) |
6f0e897f DL |
792 | { |
793 | short minargs, maxargs; | |
0c64a8cd | 794 | CHECK_SUBR (subr); |
6f0e897f DL |
795 | minargs = XSUBR (subr)->min_args; |
796 | maxargs = XSUBR (subr)->max_args; | |
32e5c58c SM |
797 | return Fcons (make_number (minargs), |
798 | maxargs == MANY ? Qmany | |
799 | : maxargs == UNEVALLED ? Qunevalled | |
800 | : make_number (maxargs)); | |
6f0e897f DL |
801 | } |
802 | ||
0fddae66 SM |
803 | DEFUN ("subr-name", Fsubr_name, Ssubr_name, 1, 1, 0, |
804 | doc: /* Return name of subroutine SUBR. | |
805 | SUBR must be a built-in function. */) | |
5842a27b | 806 | (Lisp_Object subr) |
0fddae66 SM |
807 | { |
808 | const char *name; | |
0c64a8cd | 809 | CHECK_SUBR (subr); |
0fddae66 | 810 | name = XSUBR (subr)->symbol_name; |
f3e92b69 | 811 | return build_string (name); |
0fddae66 SM |
812 | } |
813 | ||
a7ca3326 | 814 | DEFUN ("interactive-form", Finteractive_form, Sinteractive_form, 1, 1, 0, |
6b61353c | 815 | doc: /* Return the interactive form of CMD or nil if none. |
df133612 LT |
816 | If CMD is not a command, the return value is nil. |
817 | Value, if non-nil, is a list \(interactive SPEC). */) | |
5842a27b | 818 | (Lisp_Object cmd) |
cc515226 | 819 | { |
c4f46926 | 820 | Lisp_Object fun = indirect_function (cmd); /* Check cycles. */ |
764ea377 | 821 | |
eadf1faa | 822 | if (NILP (fun)) |
c4f46926 SM |
823 | return Qnil; |
824 | ||
825 | /* Use an `interactive-form' property if present, analogous to the | |
32e5c58c | 826 | function-documentation property. */ |
c4f46926 SM |
827 | fun = cmd; |
828 | while (SYMBOLP (fun)) | |
829 | { | |
3860280a | 830 | Lisp_Object tmp = Fget (fun, Qinteractive_form); |
c4f46926 SM |
831 | if (!NILP (tmp)) |
832 | return tmp; | |
833 | else | |
834 | fun = Fsymbol_function (fun); | |
835 | } | |
6b61353c KH |
836 | |
837 | if (SUBRP (fun)) | |
838 | { | |
eec47d6b | 839 | const char *spec = XSUBR (fun)->intspec; |
8a6d230a MC |
840 | if (spec) |
841 | return list2 (Qinteractive, | |
842 | (*spec != '(') ? build_string (spec) : | |
843 | Fcar (Fread_from_string (build_string (spec), Qnil, Qnil))); | |
6b61353c KH |
844 | } |
845 | else if (COMPILEDP (fun)) | |
846 | { | |
847 | if ((ASIZE (fun) & PSEUDOVECTOR_SIZE_MASK) > COMPILED_INTERACTIVE) | |
848 | return list2 (Qinteractive, AREF (fun, COMPILED_INTERACTIVE)); | |
849 | } | |
32e5c58c SM |
850 | else if (AUTOLOADP (fun)) |
851 | return Finteractive_form (Fautoload_do_load (fun, cmd, Qnil)); | |
6b61353c KH |
852 | else if (CONSP (fun)) |
853 | { | |
854 | Lisp_Object funcar = XCAR (fun); | |
b38b1ec0 | 855 | if (EQ (funcar, Qclosure)) |
23aba0ea SM |
856 | return Fassq (Qinteractive, Fcdr (Fcdr (XCDR (fun)))); |
857 | else if (EQ (funcar, Qlambda)) | |
6b61353c | 858 | return Fassq (Qinteractive, Fcdr (XCDR (fun))); |
6b61353c | 859 | } |
cc515226 GM |
860 | return Qnil; |
861 | } | |
862 | ||
7921925c | 863 | \f |
f35d5bad GM |
864 | /*********************************************************************** |
865 | Getting and Setting Values of Symbols | |
866 | ***********************************************************************/ | |
867 | ||
868 | /* Return the symbol holding SYMBOL's value. Signal | |
869 | `cyclic-variable-indirection' if SYMBOL's chain of variable | |
870 | indirections contains a loop. */ | |
871 | ||
ad97b375 | 872 | struct Lisp_Symbol * |
971de7fb | 873 | indirect_variable (struct Lisp_Symbol *symbol) |
f35d5bad | 874 | { |
ad97b375 | 875 | struct Lisp_Symbol *tortoise, *hare; |
f35d5bad GM |
876 | |
877 | hare = tortoise = symbol; | |
878 | ||
ce5b453a | 879 | while (hare->redirect == SYMBOL_VARALIAS) |
f35d5bad | 880 | { |
ce5b453a SM |
881 | hare = SYMBOL_ALIAS (hare); |
882 | if (hare->redirect != SYMBOL_VARALIAS) | |
f35d5bad | 883 | break; |
bfb96cb7 | 884 | |
ce5b453a SM |
885 | hare = SYMBOL_ALIAS (hare); |
886 | tortoise = SYMBOL_ALIAS (tortoise); | |
f35d5bad | 887 | |
ad97b375 SM |
888 | if (hare == tortoise) |
889 | { | |
890 | Lisp_Object tem; | |
891 | XSETSYMBOL (tem, symbol); | |
892 | xsignal1 (Qcyclic_variable_indirection, tem); | |
893 | } | |
f35d5bad GM |
894 | } |
895 | ||
896 | return hare; | |
897 | } | |
898 | ||
899 | ||
900 | DEFUN ("indirect-variable", Findirect_variable, Sindirect_variable, 1, 1, 0, | |
8c1a1077 | 901 | doc: /* Return the variable at the end of OBJECT's variable chain. |
4abcdac8 CY |
902 | If OBJECT is a symbol, follow its variable indirections (if any), and |
903 | return the variable at the end of the chain of aliases. See Info node | |
904 | `(elisp)Variable Aliases'. | |
905 | ||
906 | If OBJECT is not a symbol, just return it. If there is a loop in the | |
907 | chain of aliases, signal a `cyclic-variable-indirection' error. */) | |
5842a27b | 908 | (Lisp_Object object) |
f35d5bad GM |
909 | { |
910 | if (SYMBOLP (object)) | |
946f9a5b PE |
911 | { |
912 | struct Lisp_Symbol *sym = indirect_variable (XSYMBOL (object)); | |
913 | XSETSYMBOL (object, sym); | |
914 | } | |
f35d5bad GM |
915 | return object; |
916 | } | |
917 | ||
7921925c JB |
918 | |
919 | /* Given the raw contents of a symbol value cell, | |
920 | return the Lisp value of the symbol. | |
921 | This does not handle buffer-local variables; use | |
922 | swap_in_symval_forwarding for that. */ | |
923 | ||
924 | Lisp_Object | |
971de7fb | 925 | do_symval_forwarding (register union Lisp_Fwd *valcontents) |
7921925c JB |
926 | { |
927 | register Lisp_Object val; | |
ce5b453a SM |
928 | switch (XFWDTYPE (valcontents)) |
929 | { | |
930 | case Lisp_Fwd_Int: | |
931 | XSETINT (val, *XINTFWD (valcontents)->intvar); | |
932 | return val; | |
933 | ||
934 | case Lisp_Fwd_Bool: | |
935 | return (*XBOOLFWD (valcontents)->boolvar ? Qt : Qnil); | |
936 | ||
937 | case Lisp_Fwd_Obj: | |
938 | return *XOBJFWD (valcontents)->objvar; | |
939 | ||
940 | case Lisp_Fwd_Buffer_Obj: | |
4ce60d2e | 941 | return per_buffer_value (current_buffer, |
ce5b453a SM |
942 | XBUFFER_OBJFWD (valcontents)->offset); |
943 | ||
944 | case Lisp_Fwd_Kboard_Obj: | |
945 | /* We used to simply use current_kboard here, but from Lisp | |
a98edce9 | 946 | code, its value is often unexpected. It seems nicer to |
ce5b453a SM |
947 | allow constructions like this to work as intuitively expected: |
948 | ||
949 | (with-selected-frame frame | |
950 | (define-key local-function-map "\eOP" [f1])) | |
951 | ||
952 | On the other hand, this affects the semantics of | |
953 | last-command and real-last-command, and people may rely on | |
954 | that. I took a quick look at the Lisp codebase, and I | |
955 | don't think anything will break. --lorentey */ | |
956 | return *(Lisp_Object *)(XKBOARD_OBJFWD (valcontents)->offset | |
957 | + (char *)FRAME_KBOARD (SELECTED_FRAME ())); | |
1088b922 | 958 | default: emacs_abort (); |
ce5b453a | 959 | } |
7921925c JB |
960 | } |
961 | ||
d9c2a0f2 EN |
962 | /* Store NEWVAL into SYMBOL, where VALCONTENTS is found in the value cell |
963 | of SYMBOL. If SYMBOL is buffer-local, VALCONTENTS should be the | |
7921925c | 964 | buffer-independent contents of the value cell: forwarded just one |
7a283f36 GM |
965 | step past the buffer-localness. |
966 | ||
967 | BUF non-zero means set the value in buffer BUF instead of the | |
968 | current buffer. This only plays a role for per-buffer variables. */ | |
7921925c | 969 | |
ce5b453a | 970 | static void |
971de7fb | 971 | store_symval_forwarding (union Lisp_Fwd *valcontents, register Lisp_Object newval, struct buffer *buf) |
7921925c | 972 | { |
ce5b453a | 973 | switch (XFWDTYPE (valcontents)) |
7921925c | 974 | { |
ce5b453a SM |
975 | case Lisp_Fwd_Int: |
976 | CHECK_NUMBER (newval); | |
977 | *XINTFWD (valcontents)->intvar = XINT (newval); | |
978 | break; | |
aa3830c4 | 979 | |
ce5b453a SM |
980 | case Lisp_Fwd_Bool: |
981 | *XBOOLFWD (valcontents)->boolvar = !NILP (newval); | |
982 | break; | |
aa3830c4 | 983 | |
ce5b453a SM |
984 | case Lisp_Fwd_Obj: |
985 | *XOBJFWD (valcontents)->objvar = newval; | |
aa3830c4 | 986 | |
ce5b453a SM |
987 | /* If this variable is a default for something stored |
988 | in the buffer itself, such as default-fill-column, | |
989 | find the buffers that don't have local values for it | |
990 | and update them. */ | |
991 | if (XOBJFWD (valcontents)->objvar > (Lisp_Object *) &buffer_defaults | |
992 | && XOBJFWD (valcontents)->objvar < (Lisp_Object *) (&buffer_defaults + 1)) | |
46b2ac21 | 993 | { |
ce5b453a SM |
994 | int offset = ((char *) XOBJFWD (valcontents)->objvar |
995 | - (char *) &buffer_defaults); | |
996 | int idx = PER_BUFFER_IDX (offset); | |
aa3830c4 | 997 | |
8f3a2c26 | 998 | Lisp_Object tail, buf; |
aa3830c4 | 999 | |
ce5b453a SM |
1000 | if (idx <= 0) |
1001 | break; | |
aa3830c4 | 1002 | |
8f3a2c26 | 1003 | FOR_EACH_LIVE_BUFFER (tail, buf) |
6b61353c | 1004 | { |
8f3a2c26 | 1005 | struct buffer *b = XBUFFER (buf); |
6b61353c | 1006 | |
ce5b453a | 1007 | if (! PER_BUFFER_VALUE_P (b, idx)) |
4ce60d2e | 1008 | set_per_buffer_value (b, offset, newval); |
6b61353c | 1009 | } |
ce5b453a SM |
1010 | } |
1011 | break; | |
7403b5c8 | 1012 | |
ce5b453a SM |
1013 | case Lisp_Fwd_Buffer_Obj: |
1014 | { | |
1015 | int offset = XBUFFER_OBJFWD (valcontents)->offset; | |
58cc0a01 | 1016 | Lisp_Object predicate = XBUFFER_OBJFWD (valcontents)->predicate; |
ce5b453a | 1017 | |
58cc0a01 DA |
1018 | if (!NILP (predicate) && !NILP (newval) |
1019 | && NILP (call1 (predicate, newval))) | |
1020 | wrong_type_argument (predicate, newval); | |
ce5b453a SM |
1021 | |
1022 | if (buf == NULL) | |
1023 | buf = current_buffer; | |
4ce60d2e | 1024 | set_per_buffer_value (buf, offset, newval); |
ce5b453a SM |
1025 | } |
1026 | break; | |
7403b5c8 | 1027 | |
ce5b453a SM |
1028 | case Lisp_Fwd_Kboard_Obj: |
1029 | { | |
1030 | char *base = (char *) FRAME_KBOARD (SELECTED_FRAME ()); | |
1031 | char *p = base + XKBOARD_OBJFWD (valcontents)->offset; | |
1032 | *(Lisp_Object *) p = newval; | |
1033 | } | |
7921925c JB |
1034 | break; |
1035 | ||
7921925c | 1036 | default: |
1088b922 | 1037 | emacs_abort (); /* goto def; */ |
7921925c JB |
1038 | } |
1039 | } | |
1040 | ||
d73e321c DA |
1041 | /* Set up SYMBOL to refer to its global binding. This makes it safe |
1042 | to alter the status of other bindings. BEWARE: this may be called | |
1043 | during the mark phase of GC, where we assume that Lisp_Object slots | |
1044 | of BLV are marked after this function has changed them. */ | |
b0d53add GM |
1045 | |
1046 | void | |
971de7fb | 1047 | swap_in_global_binding (struct Lisp_Symbol *symbol) |
b0d53add | 1048 | { |
ce5b453a | 1049 | struct Lisp_Buffer_Local_Value *blv = SYMBOL_BLV (symbol); |
b0d53add GM |
1050 | |
1051 | /* Unload the previously loaded binding. */ | |
ce5b453a | 1052 | if (blv->fwd) |
a04e2c62 | 1053 | set_blv_value (blv, do_symval_forwarding (blv->fwd)); |
bfb96cb7 | 1054 | |
b0d53add | 1055 | /* Select the global binding in the symbol. */ |
a04e2c62 | 1056 | set_blv_valcell (blv, blv->defcell); |
ce5b453a SM |
1057 | if (blv->fwd) |
1058 | store_symval_forwarding (blv->fwd, XCDR (blv->defcell), NULL); | |
b0d53add GM |
1059 | |
1060 | /* Indicate that the global binding is set up now. */ | |
a04e2c62 DA |
1061 | set_blv_where (blv, Qnil); |
1062 | set_blv_found (blv, 0); | |
b0d53add GM |
1063 | } |
1064 | ||
2829d05f | 1065 | /* Set up the buffer-local symbol SYMBOL for validity in the current buffer. |
42e975f0 RS |
1066 | VALCONTENTS is the contents of its value cell, |
1067 | which points to a struct Lisp_Buffer_Local_Value. | |
1068 | ||
1069 | Return the value forwarded one step past the buffer-local stage. | |
1070 | This could be another forwarding pointer. */ | |
7921925c | 1071 | |
ce5b453a | 1072 | static void |
971de7fb | 1073 | swap_in_symval_forwarding (struct Lisp_Symbol *symbol, struct Lisp_Buffer_Local_Value *blv) |
7921925c | 1074 | { |
7921925c | 1075 | register Lisp_Object tem1; |
bfb96cb7 | 1076 | |
ce5b453a SM |
1077 | eassert (blv == SYMBOL_BLV (symbol)); |
1078 | ||
1079 | tem1 = blv->where; | |
7921925c | 1080 | |
42e975f0 | 1081 | if (NILP (tem1) |
ce5b453a SM |
1082 | || (blv->frame_local |
1083 | ? !EQ (selected_frame, tem1) | |
1084 | : current_buffer != XBUFFER (tem1))) | |
7921925c | 1085 | { |
bfb96cb7 | 1086 | |
42e975f0 | 1087 | /* Unload the previously loaded binding. */ |
ce5b453a SM |
1088 | tem1 = blv->valcell; |
1089 | if (blv->fwd) | |
a04e2c62 | 1090 | set_blv_value (blv, do_symval_forwarding (blv->fwd)); |
42e975f0 | 1091 | /* Choose the new binding. */ |
ce5b453a SM |
1092 | { |
1093 | Lisp_Object var; | |
1094 | XSETSYMBOL (var, symbol); | |
1095 | if (blv->frame_local) | |
1096 | { | |
e69b0960 | 1097 | tem1 = assq_no_quit (var, XFRAME (selected_frame)->param_alist); |
a04e2c62 | 1098 | set_blv_where (blv, selected_frame); |
ce5b453a SM |
1099 | } |
1100 | else | |
1101 | { | |
4b4deea2 | 1102 | tem1 = assq_no_quit (var, BVAR (current_buffer, local_var_alist)); |
d73e321c | 1103 | set_blv_where (blv, Fcurrent_buffer ()); |
ce5b453a SM |
1104 | } |
1105 | } | |
1106 | if (!(blv->found = !NILP (tem1))) | |
1107 | tem1 = blv->defcell; | |
b0c2d1c6 | 1108 | |
42e975f0 | 1109 | /* Load the new binding. */ |
a04e2c62 | 1110 | set_blv_valcell (blv, tem1); |
ce5b453a | 1111 | if (blv->fwd) |
a04e2c62 | 1112 | store_symval_forwarding (blv->fwd, blv_value (blv), NULL); |
7921925c | 1113 | } |
7921925c JB |
1114 | } |
1115 | \f | |
14e76af9 JB |
1116 | /* Find the value of a symbol, returning Qunbound if it's not bound. |
1117 | This is helpful for code which just wants to get a variable's value | |
8e6208c5 | 1118 | if it has one, without signaling an error. |
14e76af9 JB |
1119 | Note that it must not be possible to quit |
1120 | within this function. Great care is required for this. */ | |
7921925c | 1121 | |
14e76af9 | 1122 | Lisp_Object |
971de7fb | 1123 | find_symbol_value (Lisp_Object symbol) |
7921925c | 1124 | { |
ce5b453a | 1125 | struct Lisp_Symbol *sym; |
bfb96cb7 | 1126 | |
b7826503 | 1127 | CHECK_SYMBOL (symbol); |
ce5b453a | 1128 | sym = XSYMBOL (symbol); |
7921925c | 1129 | |
ce5b453a SM |
1130 | start: |
1131 | switch (sym->redirect) | |
1132 | { | |
1133 | case SYMBOL_VARALIAS: sym = indirect_variable (sym); goto start; | |
1134 | case SYMBOL_PLAINVAL: return SYMBOL_VAL (sym); | |
1135 | case SYMBOL_LOCALIZED: | |
1136 | { | |
1137 | struct Lisp_Buffer_Local_Value *blv = SYMBOL_BLV (sym); | |
1138 | swap_in_symval_forwarding (sym, blv); | |
a04e2c62 | 1139 | return blv->fwd ? do_symval_forwarding (blv->fwd) : blv_value (blv); |
ce5b453a SM |
1140 | } |
1141 | /* FALLTHROUGH */ | |
1142 | case SYMBOL_FORWARDED: | |
1143 | return do_symval_forwarding (SYMBOL_FWD (sym)); | |
1088b922 | 1144 | default: emacs_abort (); |
ce5b453a | 1145 | } |
7921925c JB |
1146 | } |
1147 | ||
a7ca3326 | 1148 | DEFUN ("symbol-value", Fsymbol_value, Ssymbol_value, 1, 1, 0, |
14d27346 GM |
1149 | doc: /* Return SYMBOL's value. Error if that is void. |
1150 | Note that if `lexical-binding' is in effect, this returns the | |
1151 | global value outside of any lexical scope. */) | |
5842a27b | 1152 | (Lisp_Object symbol) |
14e76af9 | 1153 | { |
0671d7c0 | 1154 | Lisp_Object val; |
14e76af9 | 1155 | |
d9c2a0f2 | 1156 | val = find_symbol_value (symbol); |
740ef0b5 | 1157 | if (!EQ (val, Qunbound)) |
14e76af9 | 1158 | return val; |
740ef0b5 KS |
1159 | |
1160 | xsignal1 (Qvoid_variable, symbol); | |
14e76af9 JB |
1161 | } |
1162 | ||
a7ca3326 | 1163 | DEFUN ("set", Fset, Sset, 2, 2, 0, |
8c1a1077 | 1164 | doc: /* Set SYMBOL's value to NEWVAL, and return NEWVAL. */) |
5842a27b | 1165 | (register Lisp_Object symbol, Lisp_Object newval) |
05ef7169 | 1166 | { |
94b612ad | 1167 | set_internal (symbol, newval, Qnil, 0); |
ce5b453a | 1168 | return newval; |
05ef7169 RS |
1169 | } |
1170 | ||
25638b07 | 1171 | /* Store the value NEWVAL into SYMBOL. |
94b612ad SM |
1172 | If buffer/frame-locality is an issue, WHERE specifies which context to use. |
1173 | (nil stands for the current buffer/frame). | |
2829d05f | 1174 | |
de1339b0 | 1175 | If BINDFLAG is false, then if this symbol is supposed to become |
05ef7169 | 1176 | local in every buffer where it is set, then we make it local. |
de1339b0 | 1177 | If BINDFLAG is true, we don't do that. */ |
05ef7169 | 1178 | |
ce5b453a | 1179 | void |
de1339b0 PE |
1180 | set_internal (Lisp_Object symbol, Lisp_Object newval, Lisp_Object where, |
1181 | bool bindflag) | |
7921925c | 1182 | { |
de1339b0 | 1183 | bool voide = EQ (newval, Qunbound); |
ce5b453a SM |
1184 | struct Lisp_Symbol *sym; |
1185 | Lisp_Object tem1; | |
7921925c | 1186 | |
2829d05f | 1187 | /* If restoring in a dead buffer, do nothing. */ |
94b612ad SM |
1188 | /* if (BUFFERP (where) && NILP (XBUFFER (where)->name)) |
1189 | return; */ | |
2829d05f | 1190 | |
b7826503 | 1191 | CHECK_SYMBOL (symbol); |
ce5b453a | 1192 | if (SYMBOL_CONSTANT_P (symbol)) |
7921925c | 1193 | { |
ce5b453a SM |
1194 | if (NILP (Fkeywordp (symbol)) |
1195 | || !EQ (newval, Fsymbol_value (symbol))) | |
1196 | xsignal1 (Qsetting_constant, symbol); | |
1197 | else | |
1198 | /* Allow setting keywords to their own value. */ | |
1199 | return; | |
7921925c | 1200 | } |
42e975f0 | 1201 | |
ce5b453a | 1202 | sym = XSYMBOL (symbol); |
7921925c | 1203 | |
ce5b453a SM |
1204 | start: |
1205 | switch (sym->redirect) | |
1206 | { | |
1207 | case SYMBOL_VARALIAS: sym = indirect_variable (sym); goto start; | |
1208 | case SYMBOL_PLAINVAL: SET_SYMBOL_VAL (sym , newval); return; | |
1209 | case SYMBOL_LOCALIZED: | |
1210 | { | |
1211 | struct Lisp_Buffer_Local_Value *blv = SYMBOL_BLV (sym); | |
94b612ad SM |
1212 | if (NILP (where)) |
1213 | { | |
1214 | if (blv->frame_local) | |
1215 | where = selected_frame; | |
1216 | else | |
1217 | XSETBUFFER (where, current_buffer); | |
1218 | } | |
ce5b453a SM |
1219 | /* If the current buffer is not the buffer whose binding is |
1220 | loaded, or if there may be frame-local bindings and the frame | |
1221 | isn't the right one, or if it's a Lisp_Buffer_Local_Value and | |
1222 | the default binding is loaded, the loaded binding may be the | |
1223 | wrong one. */ | |
94b612ad | 1224 | if (!EQ (blv->where, where) |
bfeae2cf | 1225 | /* Also unload a global binding (if the var is local_if_set). */ |
ce5b453a SM |
1226 | || (EQ (blv->valcell, blv->defcell))) |
1227 | { | |
1228 | /* The currently loaded binding is not necessarily valid. | |
1229 | We need to unload it, and choose a new binding. */ | |
1230 | ||
1231 | /* Write out `realvalue' to the old loaded binding. */ | |
1232 | if (blv->fwd) | |
a04e2c62 | 1233 | set_blv_value (blv, do_symval_forwarding (blv->fwd)); |
b0c2d1c6 | 1234 | |
ce5b453a | 1235 | /* Find the new binding. */ |
94b612ad SM |
1236 | XSETSYMBOL (symbol, sym); /* May have changed via aliasing. */ |
1237 | tem1 = Fassq (symbol, | |
1238 | (blv->frame_local | |
e69b0960 | 1239 | ? XFRAME (where)->param_alist |
4b4deea2 | 1240 | : BVAR (XBUFFER (where), local_var_alist))); |
a04e2c62 | 1241 | set_blv_where (blv, where); |
9e677988 | 1242 | blv->found = 1; |
ce5b453a SM |
1243 | |
1244 | if (NILP (tem1)) | |
1245 | { | |
1246 | /* This buffer still sees the default value. */ | |
1247 | ||
1248 | /* If the variable is a Lisp_Some_Buffer_Local_Value, | |
1249 | or if this is `let' rather than `set', | |
1250 | make CURRENT-ALIST-ELEMENT point to itself, | |
1251 | indicating that we're seeing the default value. | |
1252 | Likewise if the variable has been let-bound | |
1253 | in the current buffer. */ | |
1254 | if (bindflag || !blv->local_if_set | |
1255 | || let_shadows_buffer_binding_p (sym)) | |
1256 | { | |
9e677988 | 1257 | blv->found = 0; |
ce5b453a SM |
1258 | tem1 = blv->defcell; |
1259 | } | |
1260 | /* If it's a local_if_set, being set not bound, | |
1261 | and we're not within a let that was made for this buffer, | |
1262 | create a new buffer-local binding for the variable. | |
1263 | That means, give this buffer a new assoc for a local value | |
1264 | and load that binding. */ | |
1265 | else | |
1266 | { | |
1267 | /* local_if_set is only supported for buffer-local | |
1268 | bindings, not for frame-local bindings. */ | |
1269 | eassert (!blv->frame_local); | |
1270 | tem1 = Fcons (symbol, XCDR (blv->defcell)); | |
39eb03f1 PE |
1271 | bset_local_var_alist |
1272 | (XBUFFER (where), | |
1273 | Fcons (tem1, BVAR (XBUFFER (where), local_var_alist))); | |
ce5b453a SM |
1274 | } |
1275 | } | |
1276 | ||
1277 | /* Record which binding is now loaded. */ | |
a04e2c62 | 1278 | set_blv_valcell (blv, tem1); |
ce5b453a | 1279 | } |
b0c2d1c6 | 1280 | |
ce5b453a | 1281 | /* Store the new value in the cons cell. */ |
a04e2c62 | 1282 | set_blv_value (blv, newval); |
d8cafeb5 | 1283 | |
ce5b453a SM |
1284 | if (blv->fwd) |
1285 | { | |
1286 | if (voide) | |
1287 | /* If storing void (making the symbol void), forward only through | |
1288 | buffer-local indicator, not through Lisp_Objfwd, etc. */ | |
1289 | blv->fwd = NULL; | |
1290 | else | |
94b612ad SM |
1291 | store_symval_forwarding (blv->fwd, newval, |
1292 | BUFFERP (where) | |
1293 | ? XBUFFER (where) : current_buffer); | |
ce5b453a SM |
1294 | } |
1295 | break; | |
1296 | } | |
1297 | case SYMBOL_FORWARDED: | |
1298 | { | |
94b612ad SM |
1299 | struct buffer *buf |
1300 | = BUFFERP (where) ? XBUFFER (where) : current_buffer; | |
ce5b453a SM |
1301 | union Lisp_Fwd *innercontents = SYMBOL_FWD (sym); |
1302 | if (BUFFER_OBJFWDP (innercontents)) | |
1303 | { | |
1304 | int offset = XBUFFER_OBJFWD (innercontents)->offset; | |
1305 | int idx = PER_BUFFER_IDX (offset); | |
1306 | if (idx > 0 | |
1307 | && !bindflag | |
1308 | && !let_shadows_buffer_binding_p (sym)) | |
1309 | SET_PER_BUFFER_VALUE_P (buf, idx, 1); | |
1310 | } | |
569c11e3 | 1311 | |
ce5b453a SM |
1312 | if (voide) |
1313 | { /* If storing void (making the symbol void), forward only through | |
1314 | buffer-local indicator, not through Lisp_Objfwd, etc. */ | |
1315 | sym->redirect = SYMBOL_PLAINVAL; | |
1316 | SET_SYMBOL_VAL (sym, newval); | |
1317 | } | |
1318 | else | |
1319 | store_symval_forwarding (/* sym, */ innercontents, newval, buf); | |
1320 | break; | |
1321 | } | |
1088b922 | 1322 | default: emacs_abort (); |
7921925c | 1323 | } |
ce5b453a | 1324 | return; |
7921925c JB |
1325 | } |
1326 | \f | |
1327 | /* Access or set a buffer-local symbol's default value. */ | |
1328 | ||
d9c2a0f2 | 1329 | /* Return the default value of SYMBOL, but don't check for voidness. |
1bfcade3 | 1330 | Return Qunbound if it is void. */ |
7921925c | 1331 | |
112396d6 | 1332 | static Lisp_Object |
971de7fb | 1333 | default_value (Lisp_Object symbol) |
7921925c | 1334 | { |
ce5b453a | 1335 | struct Lisp_Symbol *sym; |
7921925c | 1336 | |
b7826503 | 1337 | CHECK_SYMBOL (symbol); |
ce5b453a | 1338 | sym = XSYMBOL (symbol); |
7921925c | 1339 | |
ce5b453a SM |
1340 | start: |
1341 | switch (sym->redirect) | |
7921925c | 1342 | { |
ce5b453a SM |
1343 | case SYMBOL_VARALIAS: sym = indirect_variable (sym); goto start; |
1344 | case SYMBOL_PLAINVAL: return SYMBOL_VAL (sym); | |
1345 | case SYMBOL_LOCALIZED: | |
1346 | { | |
1347 | /* If var is set up for a buffer that lacks a local value for it, | |
1348 | the current value is nominally the default value. | |
1349 | But the `realvalue' slot may be more up to date, since | |
1350 | ordinary setq stores just that slot. So use that. */ | |
1351 | struct Lisp_Buffer_Local_Value *blv = SYMBOL_BLV (sym); | |
1352 | if (blv->fwd && EQ (blv->valcell, blv->defcell)) | |
1353 | return do_symval_forwarding (blv->fwd); | |
1354 | else | |
1355 | return XCDR (blv->defcell); | |
1356 | } | |
1357 | case SYMBOL_FORWARDED: | |
1358 | { | |
1359 | union Lisp_Fwd *valcontents = SYMBOL_FWD (sym); | |
7921925c | 1360 | |
ce5b453a SM |
1361 | /* For a built-in buffer-local variable, get the default value |
1362 | rather than letting do_symval_forwarding get the current value. */ | |
1363 | if (BUFFER_OBJFWDP (valcontents)) | |
1364 | { | |
1365 | int offset = XBUFFER_OBJFWD (valcontents)->offset; | |
1366 | if (PER_BUFFER_IDX (offset) != 0) | |
4ce60d2e | 1367 | return per_buffer_default (offset); |
ce5b453a SM |
1368 | } |
1369 | ||
1370 | /* For other variables, get the current value. */ | |
1371 | return do_symval_forwarding (valcontents); | |
1372 | } | |
1088b922 | 1373 | default: emacs_abort (); |
7921925c | 1374 | } |
7921925c JB |
1375 | } |
1376 | ||
a7ca3326 | 1377 | DEFUN ("default-boundp", Fdefault_boundp, Sdefault_boundp, 1, 1, 0, |
8c1a1077 PJ |
1378 | doc: /* Return t if SYMBOL has a non-void default value. |
1379 | This is the value that is seen in buffers that do not have their own values | |
1380 | for this variable. */) | |
5842a27b | 1381 | (Lisp_Object symbol) |
7921925c JB |
1382 | { |
1383 | register Lisp_Object value; | |
1384 | ||
d9c2a0f2 | 1385 | value = default_value (symbol); |
1bfcade3 | 1386 | return (EQ (value, Qunbound) ? Qnil : Qt); |
7921925c JB |
1387 | } |
1388 | ||
a7ca3326 | 1389 | DEFUN ("default-value", Fdefault_value, Sdefault_value, 1, 1, 0, |
8c1a1077 PJ |
1390 | doc: /* Return SYMBOL's default value. |
1391 | This is the value that is seen in buffers that do not have their own values | |
1392 | for this variable. The default value is meaningful for variables with | |
1393 | local bindings in certain buffers. */) | |
5842a27b | 1394 | (Lisp_Object symbol) |
7921925c | 1395 | { |
a104f656 | 1396 | Lisp_Object value = default_value (symbol); |
740ef0b5 KS |
1397 | if (!EQ (value, Qunbound)) |
1398 | return value; | |
1399 | ||
1400 | xsignal1 (Qvoid_variable, symbol); | |
7921925c JB |
1401 | } |
1402 | ||
a7ca3326 | 1403 | DEFUN ("set-default", Fset_default, Sset_default, 2, 2, 0, |
6e86a75d | 1404 | doc: /* Set SYMBOL's default value to VALUE. SYMBOL and VALUE are evaluated. |
8c1a1077 PJ |
1405 | The default value is seen in buffers that do not have their own values |
1406 | for this variable. */) | |
5842a27b | 1407 | (Lisp_Object symbol, Lisp_Object value) |
7921925c | 1408 | { |
ce5b453a | 1409 | struct Lisp_Symbol *sym; |
7921925c | 1410 | |
b7826503 | 1411 | CHECK_SYMBOL (symbol); |
ce5b453a | 1412 | if (SYMBOL_CONSTANT_P (symbol)) |
7921925c | 1413 | { |
ce5b453a SM |
1414 | if (NILP (Fkeywordp (symbol)) |
1415 | || !EQ (value, Fdefault_value (symbol))) | |
1416 | xsignal1 (Qsetting_constant, symbol); | |
1417 | else | |
1418 | /* Allow setting keywords to their own value. */ | |
1419 | return value; | |
1420 | } | |
1421 | sym = XSYMBOL (symbol); | |
7921925c | 1422 | |
ce5b453a SM |
1423 | start: |
1424 | switch (sym->redirect) | |
1425 | { | |
1426 | case SYMBOL_VARALIAS: sym = indirect_variable (sym); goto start; | |
1427 | case SYMBOL_PLAINVAL: return Fset (symbol, value); | |
1428 | case SYMBOL_LOCALIZED: | |
1429 | { | |
1430 | struct Lisp_Buffer_Local_Value *blv = SYMBOL_BLV (sym); | |
984ef137 | 1431 | |
ce5b453a SM |
1432 | /* Store new value into the DEFAULT-VALUE slot. */ |
1433 | XSETCDR (blv->defcell, value); | |
bfb96cb7 | 1434 | |
ce5b453a SM |
1435 | /* If the default binding is now loaded, set the REALVALUE slot too. */ |
1436 | if (blv->fwd && EQ (blv->defcell, blv->valcell)) | |
1437 | store_symval_forwarding (blv->fwd, value, NULL); | |
1438 | return value; | |
1439 | } | |
1440 | case SYMBOL_FORWARDED: | |
1441 | { | |
1442 | union Lisp_Fwd *valcontents = SYMBOL_FWD (sym); | |
7921925c | 1443 | |
ce5b453a SM |
1444 | /* Handle variables like case-fold-search that have special slots |
1445 | in the buffer. | |
1446 | Make them work apparently like Lisp_Buffer_Local_Value variables. */ | |
1447 | if (BUFFER_OBJFWDP (valcontents)) | |
1448 | { | |
1449 | int offset = XBUFFER_OBJFWD (valcontents)->offset; | |
1450 | int idx = PER_BUFFER_IDX (offset); | |
7921925c | 1451 | |
4ce60d2e | 1452 | set_per_buffer_default (offset, value); |
7921925c | 1453 | |
ce5b453a SM |
1454 | /* If this variable is not always local in all buffers, |
1455 | set it in the buffers that don't nominally have a local value. */ | |
1456 | if (idx > 0) | |
1457 | { | |
1458 | struct buffer *b; | |
7921925c | 1459 | |
52b852c7 | 1460 | FOR_EACH_BUFFER (b) |
ce5b453a | 1461 | if (!PER_BUFFER_VALUE_P (b, idx)) |
4ce60d2e | 1462 | set_per_buffer_value (b, offset, value); |
ce5b453a SM |
1463 | } |
1464 | return value; | |
1465 | } | |
1466 | else | |
1467 | return Fset (symbol, value); | |
1468 | } | |
1088b922 | 1469 | default: emacs_abort (); |
ce5b453a | 1470 | } |
7921925c JB |
1471 | } |
1472 | ||
7a7df7ac | 1473 | DEFUN ("setq-default", Fsetq_default, Ssetq_default, 0, UNEVALLED, 0, |
8c1a1077 PJ |
1474 | doc: /* Set the default value of variable VAR to VALUE. |
1475 | VAR, the variable name, is literal (not evaluated); | |
bfb96cb7 | 1476 | VALUE is an expression: it is evaluated and its value returned. |
8c1a1077 PJ |
1477 | The default value of a variable is seen in buffers |
1478 | that do not have their own values for the variable. | |
1479 | ||
1480 | More generally, you can use multiple variables and values, as in | |
948d2995 JB |
1481 | (setq-default VAR VALUE VAR VALUE...) |
1482 | This sets each VAR's default value to the corresponding VALUE. | |
1483 | The VALUE for the Nth VAR can refer to the new default values | |
1484 | of previous VARs. | |
70e9f399 | 1485 | usage: (setq-default [VAR VALUE]...) */) |
5842a27b | 1486 | (Lisp_Object args) |
7921925c | 1487 | { |
16b0520a | 1488 | Lisp_Object args_left, symbol, val; |
7921925c JB |
1489 | struct gcpro gcpro1; |
1490 | ||
16b0520a | 1491 | args_left = val = args; |
7921925c JB |
1492 | GCPRO1 (args); |
1493 | ||
16b0520a | 1494 | while (CONSP (args_left)) |
7921925c | 1495 | { |
16b0520a | 1496 | val = eval_sub (Fcar (XCDR (args_left))); |
d2fde41d | 1497 | symbol = XCAR (args_left); |
d9c2a0f2 | 1498 | Fset_default (symbol, val); |
d2fde41d | 1499 | args_left = Fcdr (XCDR (args_left)); |
7921925c | 1500 | } |
7921925c JB |
1501 | |
1502 | UNGCPRO; | |
1503 | return val; | |
1504 | } | |
1505 | \f | |
a5ca2b75 JB |
1506 | /* Lisp functions for creating and removing buffer-local variables. */ |
1507 | ||
ce5b453a SM |
1508 | union Lisp_Val_Fwd |
1509 | { | |
1510 | Lisp_Object value; | |
1511 | union Lisp_Fwd *fwd; | |
1512 | }; | |
1513 | ||
1514 | static struct Lisp_Buffer_Local_Value * | |
de1339b0 PE |
1515 | make_blv (struct Lisp_Symbol *sym, bool forwarded, |
1516 | union Lisp_Val_Fwd valcontents) | |
ce5b453a | 1517 | { |
38182d90 | 1518 | struct Lisp_Buffer_Local_Value *blv = xmalloc (sizeof *blv); |
c632dfda JD |
1519 | Lisp_Object symbol; |
1520 | Lisp_Object tem; | |
1521 | ||
1522 | XSETSYMBOL (symbol, sym); | |
1523 | tem = Fcons (symbol, (forwarded | |
1524 | ? do_symval_forwarding (valcontents.fwd) | |
1525 | : valcontents.value)); | |
1526 | ||
ce5b453a SM |
1527 | /* Buffer_Local_Values cannot have as realval a buffer-local |
1528 | or keyboard-local forwarding. */ | |
1529 | eassert (!(forwarded && BUFFER_OBJFWDP (valcontents.fwd))); | |
1530 | eassert (!(forwarded && KBOARD_OBJFWDP (valcontents.fwd))); | |
1531 | blv->fwd = forwarded ? valcontents.fwd : NULL; | |
a04e2c62 | 1532 | set_blv_where (blv, Qnil); |
ce5b453a SM |
1533 | blv->frame_local = 0; |
1534 | blv->local_if_set = 0; | |
a04e2c62 DA |
1535 | set_blv_defcell (blv, tem); |
1536 | set_blv_valcell (blv, tem); | |
1537 | set_blv_found (blv, 0); | |
ce5b453a SM |
1538 | return blv; |
1539 | } | |
1540 | ||
a7ca3326 | 1541 | DEFUN ("make-variable-buffer-local", Fmake_variable_buffer_local, |
16a97296 | 1542 | Smake_variable_buffer_local, 1, 1, "vMake Variable Buffer Local: ", |
8c1a1077 PJ |
1543 | doc: /* Make VARIABLE become buffer-local whenever it is set. |
1544 | At any time, the value for the current buffer is in effect, | |
1545 | unless the variable has never been set in this buffer, | |
1546 | in which case the default value is in effect. | |
1547 | Note that binding the variable with `let', or setting it while | |
1548 | a `let'-style binding made in this buffer is in effect, | |
bfb96cb7 | 1549 | does not make the variable buffer-local. Return VARIABLE. |
8c1a1077 | 1550 | |
450533b0 SM |
1551 | This globally affects all uses of this variable, so it belongs together with |
1552 | the variable declaration, rather than with its uses (if you just want to make | |
1553 | a variable local to the current buffer for one particular use, use | |
1554 | `make-local-variable'). Buffer-local bindings are normally cleared | |
1555 | while setting up a new major mode, unless they have a `permanent-local' | |
1556 | property. | |
a9908653 | 1557 | |
8c1a1077 | 1558 | The function `default-value' gets the default value and `set-default' sets it. */) |
5842a27b | 1559 | (register Lisp_Object variable) |
7921925c | 1560 | { |
ad97b375 | 1561 | struct Lisp_Symbol *sym; |
ce5b453a | 1562 | struct Lisp_Buffer_Local_Value *blv = NULL; |
bfe3e0a2 | 1563 | union Lisp_Val_Fwd valcontents IF_LINT (= {LISP_INITIALLY_ZERO}); |
de1339b0 | 1564 | bool forwarded IF_LINT (= 0); |
7921925c | 1565 | |
b7826503 | 1566 | CHECK_SYMBOL (variable); |
ce5b453a | 1567 | sym = XSYMBOL (variable); |
7921925c | 1568 | |
ce5b453a SM |
1569 | start: |
1570 | switch (sym->redirect) | |
fd9440c5 | 1571 | { |
ce5b453a SM |
1572 | case SYMBOL_VARALIAS: sym = indirect_variable (sym); goto start; |
1573 | case SYMBOL_PLAINVAL: | |
1574 | forwarded = 0; valcontents.value = SYMBOL_VAL (sym); | |
1575 | if (EQ (valcontents.value, Qunbound)) | |
1576 | valcontents.value = Qnil; | |
1577 | break; | |
1578 | case SYMBOL_LOCALIZED: | |
1579 | blv = SYMBOL_BLV (sym); | |
1580 | if (blv->frame_local) | |
1581 | error ("Symbol %s may not be buffer-local", | |
1582 | SDATA (SYMBOL_NAME (variable))); | |
1583 | break; | |
1584 | case SYMBOL_FORWARDED: | |
1585 | forwarded = 1; valcontents.fwd = SYMBOL_FWD (sym); | |
1586 | if (KBOARD_OBJFWDP (valcontents.fwd)) | |
1587 | error ("Symbol %s may not be buffer-local", | |
1588 | SDATA (SYMBOL_NAME (variable))); | |
1589 | else if (BUFFER_OBJFWDP (valcontents.fwd)) | |
1590 | return variable; | |
1591 | break; | |
1088b922 | 1592 | default: emacs_abort (); |
fd9440c5 | 1593 | } |
ce5b453a SM |
1594 | |
1595 | if (sym->constant) | |
1596 | error ("Symbol %s may not be buffer-local", SDATA (SYMBOL_NAME (variable))); | |
1597 | ||
1598 | if (!blv) | |
7921925c | 1599 | { |
ce5b453a SM |
1600 | blv = make_blv (sym, forwarded, valcontents); |
1601 | sym->redirect = SYMBOL_LOCALIZED; | |
1602 | SET_SYMBOL_BLV (sym, blv); | |
1603 | { | |
1604 | Lisp_Object symbol; | |
1605 | XSETSYMBOL (symbol, sym); /* In case `variable' is aliased. */ | |
1606 | if (let_shadows_global_binding_p (symbol)) | |
8b1e1112 SM |
1607 | message ("Making %s buffer-local while let-bound!", |
1608 | SDATA (SYMBOL_NAME (variable))); | |
ce5b453a | 1609 | } |
7921925c | 1610 | } |
ce5b453a SM |
1611 | |
1612 | blv->local_if_set = 1; | |
d9c2a0f2 | 1613 | return variable; |
7921925c JB |
1614 | } |
1615 | ||
a7ca3326 | 1616 | DEFUN ("make-local-variable", Fmake_local_variable, Smake_local_variable, |
8c1a1077 PJ |
1617 | 1, 1, "vMake Local Variable: ", |
1618 | doc: /* Make VARIABLE have a separate value in the current buffer. | |
1619 | Other buffers will continue to share a common default value. | |
1620 | \(The buffer-local value of VARIABLE starts out as the same value | |
1621 | VARIABLE previously had. If VARIABLE was void, it remains void.\) | |
a9908653 | 1622 | Return VARIABLE. |
8c1a1077 PJ |
1623 | |
1624 | If the variable is already arranged to become local when set, | |
1625 | this function causes a local value to exist for this buffer, | |
1626 | just as setting the variable would do. | |
1627 | ||
1628 | This function returns VARIABLE, and therefore | |
1629 | (set (make-local-variable 'VARIABLE) VALUE-EXP) | |
1630 | works. | |
1631 | ||
a9908653 RS |
1632 | See also `make-variable-buffer-local'. |
1633 | ||
8c1a1077 | 1634 | Do not use `make-local-variable' to make a hook variable buffer-local. |
515f3f25 | 1635 | Instead, use `add-hook' and specify t for the LOCAL argument. */) |
de1339b0 | 1636 | (Lisp_Object variable) |
7921925c | 1637 | { |
de1339b0 PE |
1638 | Lisp_Object tem; |
1639 | bool forwarded IF_LINT (= 0); | |
bfe3e0a2 | 1640 | union Lisp_Val_Fwd valcontents IF_LINT (= {LISP_INITIALLY_ZERO}); |
ad97b375 | 1641 | struct Lisp_Symbol *sym; |
ce5b453a | 1642 | struct Lisp_Buffer_Local_Value *blv = NULL; |
7921925c | 1643 | |
b7826503 | 1644 | CHECK_SYMBOL (variable); |
ce5b453a | 1645 | sym = XSYMBOL (variable); |
7921925c | 1646 | |
ce5b453a SM |
1647 | start: |
1648 | switch (sym->redirect) | |
1649 | { | |
1650 | case SYMBOL_VARALIAS: sym = indirect_variable (sym); goto start; | |
1651 | case SYMBOL_PLAINVAL: | |
1652 | forwarded = 0; valcontents.value = SYMBOL_VAL (sym); break; | |
1653 | case SYMBOL_LOCALIZED: | |
1654 | blv = SYMBOL_BLV (sym); | |
1655 | if (blv->frame_local) | |
1656 | error ("Symbol %s may not be buffer-local", | |
1657 | SDATA (SYMBOL_NAME (variable))); | |
1658 | break; | |
1659 | case SYMBOL_FORWARDED: | |
1660 | forwarded = 1; valcontents.fwd = SYMBOL_FWD (sym); | |
1661 | if (KBOARD_OBJFWDP (valcontents.fwd)) | |
1662 | error ("Symbol %s may not be buffer-local", | |
1663 | SDATA (SYMBOL_NAME (variable))); | |
1664 | break; | |
1088b922 | 1665 | default: emacs_abort (); |
ce5b453a SM |
1666 | } |
1667 | ||
1668 | if (sym->constant) | |
8b1e1112 SM |
1669 | error ("Symbol %s may not be buffer-local", |
1670 | SDATA (SYMBOL_NAME (variable))); | |
7921925c | 1671 | |
ce5b453a SM |
1672 | if (blv ? blv->local_if_set |
1673 | : (forwarded && BUFFER_OBJFWDP (valcontents.fwd))) | |
7921925c | 1674 | { |
d9c2a0f2 | 1675 | tem = Fboundp (variable); |
7921925c JB |
1676 | /* Make sure the symbol has a local value in this particular buffer, |
1677 | by setting it to the same value it already has. */ | |
d9c2a0f2 EN |
1678 | Fset (variable, (EQ (tem, Qt) ? Fsymbol_value (variable) : Qunbound)); |
1679 | return variable; | |
7921925c | 1680 | } |
ce5b453a | 1681 | if (!blv) |
7921925c | 1682 | { |
ce5b453a SM |
1683 | blv = make_blv (sym, forwarded, valcontents); |
1684 | sym->redirect = SYMBOL_LOCALIZED; | |
1685 | SET_SYMBOL_BLV (sym, blv); | |
1686 | { | |
1687 | Lisp_Object symbol; | |
1688 | XSETSYMBOL (symbol, sym); /* In case `variable' is aliased. */ | |
1689 | if (let_shadows_global_binding_p (symbol)) | |
8b1e1112 SM |
1690 | message ("Making %s local to %s while let-bound!", |
1691 | SDATA (SYMBOL_NAME (variable)), | |
4b4deea2 | 1692 | SDATA (BVAR (current_buffer, name))); |
ce5b453a | 1693 | } |
7921925c | 1694 | } |
ce5b453a | 1695 | |
42e975f0 | 1696 | /* Make sure this buffer has its own value of symbol. */ |
ce5b453a | 1697 | XSETSYMBOL (variable, sym); /* Update in case of aliasing. */ |
4b4deea2 | 1698 | tem = Fassq (variable, BVAR (current_buffer, local_var_alist)); |
a33ef3ab | 1699 | if (NILP (tem)) |
7921925c | 1700 | { |
ce5b453a SM |
1701 | if (let_shadows_buffer_binding_p (sym)) |
1702 | message ("Making %s buffer-local while locally let-bound!", | |
1703 | SDATA (SYMBOL_NAME (variable))); | |
1704 | ||
a5d004a1 RS |
1705 | /* Swap out any local binding for some other buffer, and make |
1706 | sure the current value is permanently recorded, if it's the | |
1707 | default value. */ | |
d9c2a0f2 | 1708 | find_symbol_value (variable); |
a5d004a1 | 1709 | |
39eb03f1 PE |
1710 | bset_local_var_alist |
1711 | (current_buffer, | |
1712 | Fcons (Fcons (variable, XCDR (blv->defcell)), | |
1713 | BVAR (current_buffer, local_var_alist))); | |
7921925c JB |
1714 | |
1715 | /* Make sure symbol does not think it is set up for this buffer; | |
42e975f0 | 1716 | force it to look once again for this buffer's value. */ |
ce5b453a | 1717 | if (current_buffer == XBUFFER (blv->where)) |
a04e2c62 DA |
1718 | set_blv_where (blv, Qnil); |
1719 | set_blv_found (blv, 0); | |
7921925c | 1720 | } |
a5ca2b75 | 1721 | |
42e975f0 RS |
1722 | /* If the symbol forwards into a C variable, then load the binding |
1723 | for this buffer now. If C code modifies the variable before we | |
1724 | load the binding in, then that new value will clobber the default | |
1725 | binding the next time we unload it. */ | |
ce5b453a SM |
1726 | if (blv->fwd) |
1727 | swap_in_symval_forwarding (sym, blv); | |
a5ca2b75 | 1728 | |
d9c2a0f2 | 1729 | return variable; |
7921925c JB |
1730 | } |
1731 | ||
1732 | DEFUN ("kill-local-variable", Fkill_local_variable, Skill_local_variable, | |
8c1a1077 PJ |
1733 | 1, 1, "vKill Local Variable: ", |
1734 | doc: /* Make VARIABLE no longer have a separate value in the current buffer. | |
bfb96cb7 | 1735 | From now on the default value will apply in this buffer. Return VARIABLE. */) |
5842a27b | 1736 | (register Lisp_Object variable) |
7921925c | 1737 | { |
ce5b453a SM |
1738 | register Lisp_Object tem; |
1739 | struct Lisp_Buffer_Local_Value *blv; | |
ad97b375 | 1740 | struct Lisp_Symbol *sym; |
7921925c | 1741 | |
b7826503 | 1742 | CHECK_SYMBOL (variable); |
ce5b453a | 1743 | sym = XSYMBOL (variable); |
7921925c | 1744 | |
ce5b453a SM |
1745 | start: |
1746 | switch (sym->redirect) | |
7921925c | 1747 | { |
ce5b453a SM |
1748 | case SYMBOL_VARALIAS: sym = indirect_variable (sym); goto start; |
1749 | case SYMBOL_PLAINVAL: return variable; | |
1750 | case SYMBOL_FORWARDED: | |
1751 | { | |
1752 | union Lisp_Fwd *valcontents = SYMBOL_FWD (sym); | |
1753 | if (BUFFER_OBJFWDP (valcontents)) | |
1754 | { | |
1755 | int offset = XBUFFER_OBJFWD (valcontents)->offset; | |
1756 | int idx = PER_BUFFER_IDX (offset); | |
1757 | ||
1758 | if (idx > 0) | |
1759 | { | |
1760 | SET_PER_BUFFER_VALUE_P (current_buffer, idx, 0); | |
4ce60d2e DA |
1761 | set_per_buffer_value (current_buffer, offset, |
1762 | per_buffer_default (offset)); | |
ce5b453a SM |
1763 | } |
1764 | } | |
1765 | return variable; | |
1766 | } | |
1767 | case SYMBOL_LOCALIZED: | |
1768 | blv = SYMBOL_BLV (sym); | |
1769 | if (blv->frame_local) | |
1770 | return variable; | |
1771 | break; | |
1088b922 | 1772 | default: emacs_abort (); |
7921925c JB |
1773 | } |
1774 | ||
42e975f0 | 1775 | /* Get rid of this buffer's alist element, if any. */ |
ad97b375 | 1776 | XSETSYMBOL (variable, sym); /* Propagate variable indirection. */ |
4b4deea2 | 1777 | tem = Fassq (variable, BVAR (current_buffer, local_var_alist)); |
a33ef3ab | 1778 | if (!NILP (tem)) |
39eb03f1 PE |
1779 | bset_local_var_alist |
1780 | (current_buffer, | |
1781 | Fdelq (tem, BVAR (current_buffer, local_var_alist))); | |
7921925c | 1782 | |
42e975f0 RS |
1783 | /* If the symbol is set up with the current buffer's binding |
1784 | loaded, recompute its value. We have to do it now, or else | |
1785 | forwarded objects won't work right. */ | |
7921925c | 1786 | { |
ce5b453a SM |
1787 | Lisp_Object buf; XSETBUFFER (buf, current_buffer); |
1788 | if (EQ (buf, blv->where)) | |
79c83e03 | 1789 | { |
a04e2c62 | 1790 | set_blv_where (blv, Qnil); |
9e677988 | 1791 | blv->found = 0; |
978dd578 | 1792 | find_symbol_value (variable); |
79c83e03 | 1793 | } |
7921925c JB |
1794 | } |
1795 | ||
d9c2a0f2 | 1796 | return variable; |
7921925c | 1797 | } |
62476adc | 1798 | |
b0c2d1c6 RS |
1799 | /* Lisp functions for creating and removing buffer-local variables. */ |
1800 | ||
ab795c65 GM |
1801 | /* Obsolete since 22.2. NB adjust doc of modify-frame-parameters |
1802 | when/if this is removed. */ | |
1803 | ||
b0c2d1c6 | 1804 | DEFUN ("make-variable-frame-local", Fmake_variable_frame_local, Smake_variable_frame_local, |
8c1a1077 PJ |
1805 | 1, 1, "vMake Variable Frame Local: ", |
1806 | doc: /* Enable VARIABLE to have frame-local bindings. | |
4d4d36b1 RS |
1807 | This does not create any frame-local bindings for VARIABLE, |
1808 | it just makes them possible. | |
1809 | ||
1810 | A frame-local binding is actually a frame parameter value. | |
1811 | If a frame F has a value for the frame parameter named VARIABLE, | |
1812 | that also acts as a frame-local binding for VARIABLE in F-- | |
1813 | provided this function has been called to enable VARIABLE | |
1814 | to have frame-local bindings at all. | |
1815 | ||
1816 | The only way to create a frame-local binding for VARIABLE in a frame | |
1817 | is to set the VARIABLE frame parameter of that frame. See | |
1818 | `modify-frame-parameters' for how to set frame parameters. | |
1819 | ||
a02a1384 GM |
1820 | Note that since Emacs 23.1, variables cannot be both buffer-local and |
1821 | frame-local any more (buffer-local bindings used to take precedence over | |
1822 | frame-local bindings). */) | |
de1339b0 | 1823 | (Lisp_Object variable) |
b0c2d1c6 | 1824 | { |
de1339b0 | 1825 | bool forwarded; |
ce5b453a | 1826 | union Lisp_Val_Fwd valcontents; |
ad97b375 | 1827 | struct Lisp_Symbol *sym; |
ce5b453a | 1828 | struct Lisp_Buffer_Local_Value *blv = NULL; |
b0c2d1c6 | 1829 | |
b7826503 | 1830 | CHECK_SYMBOL (variable); |
ce5b453a | 1831 | sym = XSYMBOL (variable); |
b0c2d1c6 | 1832 | |
ce5b453a SM |
1833 | start: |
1834 | switch (sym->redirect) | |
42e975f0 | 1835 | { |
ce5b453a SM |
1836 | case SYMBOL_VARALIAS: sym = indirect_variable (sym); goto start; |
1837 | case SYMBOL_PLAINVAL: | |
1838 | forwarded = 0; valcontents.value = SYMBOL_VAL (sym); | |
1839 | if (EQ (valcontents.value, Qunbound)) | |
1840 | valcontents.value = Qnil; | |
1841 | break; | |
1842 | case SYMBOL_LOCALIZED: | |
1843 | if (SYMBOL_BLV (sym)->frame_local) | |
1844 | return variable; | |
1845 | else | |
1846 | error ("Symbol %s may not be frame-local", | |
1847 | SDATA (SYMBOL_NAME (variable))); | |
1848 | case SYMBOL_FORWARDED: | |
1849 | forwarded = 1; valcontents.fwd = SYMBOL_FWD (sym); | |
1850 | if (KBOARD_OBJFWDP (valcontents.fwd) || BUFFER_OBJFWDP (valcontents.fwd)) | |
1851 | error ("Symbol %s may not be frame-local", | |
1852 | SDATA (SYMBOL_NAME (variable))); | |
1853 | break; | |
1088b922 | 1854 | default: emacs_abort (); |
42e975f0 | 1855 | } |
b0c2d1c6 | 1856 | |
ce5b453a SM |
1857 | if (sym->constant) |
1858 | error ("Symbol %s may not be frame-local", SDATA (SYMBOL_NAME (variable))); | |
1859 | ||
1860 | blv = make_blv (sym, forwarded, valcontents); | |
1861 | blv->frame_local = 1; | |
1862 | sym->redirect = SYMBOL_LOCALIZED; | |
1863 | SET_SYMBOL_BLV (sym, blv); | |
8b1e1112 SM |
1864 | { |
1865 | Lisp_Object symbol; | |
1866 | XSETSYMBOL (symbol, sym); /* In case `variable' is aliased. */ | |
1867 | if (let_shadows_global_binding_p (symbol)) | |
1868 | message ("Making %s frame-local while let-bound!", | |
1869 | SDATA (SYMBOL_NAME (variable))); | |
1870 | } | |
b0c2d1c6 RS |
1871 | return variable; |
1872 | } | |
1873 | ||
a7ca3326 | 1874 | DEFUN ("local-variable-p", Flocal_variable_p, Slocal_variable_p, |
8c1a1077 PJ |
1875 | 1, 2, 0, |
1876 | doc: /* Non-nil if VARIABLE has a local binding in buffer BUFFER. | |
1877 | BUFFER defaults to the current buffer. */) | |
5842a27b | 1878 | (register Lisp_Object variable, Lisp_Object buffer) |
62476adc | 1879 | { |
c48ead86 | 1880 | register struct buffer *buf; |
ad97b375 | 1881 | struct Lisp_Symbol *sym; |
c48ead86 KH |
1882 | |
1883 | if (NILP (buffer)) | |
1884 | buf = current_buffer; | |
1885 | else | |
1886 | { | |
b7826503 | 1887 | CHECK_BUFFER (buffer); |
c48ead86 KH |
1888 | buf = XBUFFER (buffer); |
1889 | } | |
62476adc | 1890 | |
b7826503 | 1891 | CHECK_SYMBOL (variable); |
ce5b453a | 1892 | sym = XSYMBOL (variable); |
be95bee9 | 1893 | |
ce5b453a SM |
1894 | start: |
1895 | switch (sym->redirect) | |
c48ead86 | 1896 | { |
ce5b453a SM |
1897 | case SYMBOL_VARALIAS: sym = indirect_variable (sym); goto start; |
1898 | case SYMBOL_PLAINVAL: return Qnil; | |
1899 | case SYMBOL_LOCALIZED: | |
1900 | { | |
1901 | Lisp_Object tail, elt, tmp; | |
1902 | struct Lisp_Buffer_Local_Value *blv = SYMBOL_BLV (sym); | |
1903 | XSETBUFFER (tmp, buf); | |
8d1d9587 | 1904 | XSETSYMBOL (variable, sym); /* Update in case of aliasing. */ |
aa3830c4 | 1905 | |
2f592f95 SM |
1906 | if (EQ (blv->where, tmp)) /* The binding is already loaded. */ |
1907 | return blv_found (blv) ? Qt : Qnil; | |
1908 | else | |
1909 | for (tail = BVAR (buf, local_var_alist); CONSP (tail); tail = XCDR (tail)) | |
1910 | { | |
1911 | elt = XCAR (tail); | |
1912 | if (EQ (variable, XCAR (elt))) | |
1913 | { | |
1914 | eassert (!blv->frame_local); | |
1915 | return Qt; | |
1916 | } | |
1917 | } | |
ce5b453a SM |
1918 | return Qnil; |
1919 | } | |
1920 | case SYMBOL_FORWARDED: | |
1921 | { | |
1922 | union Lisp_Fwd *valcontents = SYMBOL_FWD (sym); | |
1923 | if (BUFFER_OBJFWDP (valcontents)) | |
1924 | { | |
1925 | int offset = XBUFFER_OBJFWD (valcontents)->offset; | |
1926 | int idx = PER_BUFFER_IDX (offset); | |
1927 | if (idx == -1 || PER_BUFFER_VALUE_P (buf, idx)) | |
1928 | return Qt; | |
1929 | } | |
1930 | return Qnil; | |
1931 | } | |
1088b922 | 1932 | default: emacs_abort (); |
c48ead86 | 1933 | } |
62476adc | 1934 | } |
f4f04cee RS |
1935 | |
1936 | DEFUN ("local-variable-if-set-p", Flocal_variable_if_set_p, Slocal_variable_if_set_p, | |
8c1a1077 | 1937 | 1, 2, 0, |
1a5432bc CY |
1938 | doc: /* Non-nil if VARIABLE is local in buffer BUFFER when set there. |
1939 | BUFFER defaults to the current buffer. | |
1940 | ||
1941 | More precisely, return non-nil if either VARIABLE already has a local | |
1942 | value in BUFFER, or if VARIABLE is automatically buffer-local (see | |
1943 | `make-variable-buffer-local'). */) | |
5842a27b | 1944 | (register Lisp_Object variable, Lisp_Object buffer) |
f4f04cee | 1945 | { |
ad97b375 | 1946 | struct Lisp_Symbol *sym; |
f4f04cee | 1947 | |
b7826503 | 1948 | CHECK_SYMBOL (variable); |
ce5b453a | 1949 | sym = XSYMBOL (variable); |
f4f04cee | 1950 | |
ce5b453a SM |
1951 | start: |
1952 | switch (sym->redirect) | |
f4f04cee | 1953 | { |
ce5b453a SM |
1954 | case SYMBOL_VARALIAS: sym = indirect_variable (sym); goto start; |
1955 | case SYMBOL_PLAINVAL: return Qnil; | |
1956 | case SYMBOL_LOCALIZED: | |
1957 | { | |
1958 | struct Lisp_Buffer_Local_Value *blv = SYMBOL_BLV (sym); | |
1959 | if (blv->local_if_set) | |
1960 | return Qt; | |
1961 | XSETSYMBOL (variable, sym); /* Update in case of aliasing. */ | |
1962 | return Flocal_variable_p (variable, buffer); | |
1963 | } | |
1964 | case SYMBOL_FORWARDED: | |
1965 | /* All BUFFER_OBJFWD slots become local if they are set. */ | |
1966 | return (BUFFER_OBJFWDP (SYMBOL_FWD (sym)) ? Qt : Qnil); | |
1088b922 | 1967 | default: emacs_abort (); |
f4f04cee | 1968 | } |
f4f04cee | 1969 | } |
6b61353c KH |
1970 | |
1971 | DEFUN ("variable-binding-locus", Fvariable_binding_locus, Svariable_binding_locus, | |
1972 | 1, 1, 0, | |
1973 | doc: /* Return a value indicating where VARIABLE's current binding comes from. | |
1974 | If the current binding is buffer-local, the value is the current buffer. | |
1975 | If the current binding is frame-local, the value is the selected frame. | |
1976 | If the current binding is global (the default), the value is nil. */) | |
5842a27b | 1977 | (register Lisp_Object variable) |
6b61353c | 1978 | { |
ad97b375 | 1979 | struct Lisp_Symbol *sym; |
6b61353c KH |
1980 | |
1981 | CHECK_SYMBOL (variable); | |
ce5b453a | 1982 | sym = XSYMBOL (variable); |
6b61353c KH |
1983 | |
1984 | /* Make sure the current binding is actually swapped in. */ | |
1985 | find_symbol_value (variable); | |
1986 | ||
ce5b453a SM |
1987 | start: |
1988 | switch (sym->redirect) | |
6b61353c | 1989 | { |
ce5b453a SM |
1990 | case SYMBOL_VARALIAS: sym = indirect_variable (sym); goto start; |
1991 | case SYMBOL_PLAINVAL: return Qnil; | |
1992 | case SYMBOL_FORWARDED: | |
1993 | { | |
1994 | union Lisp_Fwd *valcontents = SYMBOL_FWD (sym); | |
1995 | if (KBOARD_OBJFWDP (valcontents)) | |
d2a95ffb | 1996 | return Fframe_terminal (selected_frame); |
ce5b453a SM |
1997 | else if (!BUFFER_OBJFWDP (valcontents)) |
1998 | return Qnil; | |
1999 | } | |
2000 | /* FALLTHROUGH */ | |
2001 | case SYMBOL_LOCALIZED: | |
6b61353c KH |
2002 | /* For a local variable, record both the symbol and which |
2003 | buffer's or frame's value we are saving. */ | |
2004 | if (!NILP (Flocal_variable_p (variable, Qnil))) | |
2005 | return Fcurrent_buffer (); | |
ce5b453a | 2006 | else if (sym->redirect == SYMBOL_LOCALIZED |
a04e2c62 | 2007 | && blv_found (SYMBOL_BLV (sym))) |
ce5b453a SM |
2008 | return SYMBOL_BLV (sym)->where; |
2009 | else | |
2010 | return Qnil; | |
1088b922 | 2011 | default: emacs_abort (); |
6b61353c | 2012 | } |
6b61353c | 2013 | } |
2a42d440 | 2014 | |
c40bb1ba | 2015 | /* This code is disabled now that we use the selected frame to return |
7be68de5 | 2016 | keyboard-local-values. */ |
c40bb1ba | 2017 | #if 0 |
f57e2426 | 2018 | extern struct terminal *get_terminal (Lisp_Object display, int); |
2a42d440 | 2019 | |
a7ca3326 | 2020 | DEFUN ("terminal-local-value", Fterminal_local_value, |
16a97296 | 2021 | Sterminal_local_value, 2, 2, 0, |
6ed8eeff | 2022 | doc: /* Return the terminal-local value of SYMBOL on TERMINAL. |
2a42d440 KL |
2023 | If SYMBOL is not a terminal-local variable, then return its normal |
2024 | value, like `symbol-value'. | |
2025 | ||
708e05dc | 2026 | TERMINAL may be a terminal object, a frame, or nil (meaning the |
6ed8eeff | 2027 | selected frame's terminal device). */) |
5842a27b | 2028 | (Lisp_Object symbol, Lisp_Object terminal) |
2a42d440 KL |
2029 | { |
2030 | Lisp_Object result; | |
6ed8eeff KL |
2031 | struct terminal *t = get_terminal (terminal, 1); |
2032 | push_kboard (t->kboard); | |
2a42d440 | 2033 | result = Fsymbol_value (symbol); |
256c9c3a | 2034 | pop_kboard (); |
2a42d440 KL |
2035 | return result; |
2036 | } | |
2037 | ||
a7ca3326 | 2038 | DEFUN ("set-terminal-local-value", Fset_terminal_local_value, |
16a97296 | 2039 | Sset_terminal_local_value, 3, 3, 0, |
6ed8eeff | 2040 | doc: /* Set the terminal-local binding of SYMBOL on TERMINAL to VALUE. |
2a42d440 | 2041 | If VARIABLE is not a terminal-local variable, then set its normal |
7e59217d KL |
2042 | binding, like `set'. |
2043 | ||
708e05dc | 2044 | TERMINAL may be a terminal object, a frame, or nil (meaning the |
6ed8eeff | 2045 | selected frame's terminal device). */) |
5842a27b | 2046 | (Lisp_Object symbol, Lisp_Object terminal, Lisp_Object value) |
2a42d440 KL |
2047 | { |
2048 | Lisp_Object result; | |
6ed8eeff | 2049 | struct terminal *t = get_terminal (terminal, 1); |
256c9c3a | 2050 | push_kboard (d->kboard); |
2a42d440 | 2051 | result = Fset (symbol, value); |
256c9c3a | 2052 | pop_kboard (); |
2a42d440 KL |
2053 | return result; |
2054 | } | |
c40bb1ba | 2055 | #endif |
7921925c | 2056 | \f |
ffd56f97 JB |
2057 | /* Find the function at the end of a chain of symbol function indirections. */ |
2058 | ||
2059 | /* If OBJECT is a symbol, find the end of its function chain and | |
2060 | return the value found there. If OBJECT is not a symbol, just | |
2061 | return it. If there is a cycle in the function chain, signal a | |
2062 | cyclic-function-indirection error. | |
2063 | ||
2064 | This is like Findirect_function, except that it doesn't signal an | |
2065 | error if the chain ends up unbound. */ | |
2066 | Lisp_Object | |
971de7fb | 2067 | indirect_function (register Lisp_Object object) |
ffd56f97 | 2068 | { |
eb8c3be9 | 2069 | Lisp_Object tortoise, hare; |
ffd56f97 | 2070 | |
eb8c3be9 | 2071 | hare = tortoise = object; |
ffd56f97 JB |
2072 | |
2073 | for (;;) | |
2074 | { | |
eadf1faa | 2075 | if (!SYMBOLP (hare) || NILP (hare)) |
ffd56f97 | 2076 | break; |
c644523b | 2077 | hare = XSYMBOL (hare)->function; |
eadf1faa | 2078 | if (!SYMBOLP (hare) || NILP (hare)) |
ffd56f97 | 2079 | break; |
c644523b | 2080 | hare = XSYMBOL (hare)->function; |
ffd56f97 | 2081 | |
c644523b | 2082 | tortoise = XSYMBOL (tortoise)->function; |
ffd56f97 | 2083 | |
eb8c3be9 | 2084 | if (EQ (hare, tortoise)) |
740ef0b5 | 2085 | xsignal1 (Qcyclic_function_indirection, object); |
ffd56f97 JB |
2086 | } |
2087 | ||
2088 | return hare; | |
2089 | } | |
2090 | ||
a7ca3326 | 2091 | DEFUN ("indirect-function", Findirect_function, Sindirect_function, 1, 2, 0, |
8c1a1077 | 2092 | doc: /* Return the function at the end of OBJECT's function chain. |
0ddb0ae8 TTN |
2093 | If OBJECT is not a symbol, just return it. Otherwise, follow all |
2094 | function indirections to find the final function binding and return it. | |
2095 | If the final symbol in the chain is unbound, signal a void-function error. | |
8350f087 | 2096 | Optional arg NOERROR non-nil means to return nil instead of signaling. |
8c1a1077 PJ |
2097 | Signal a cyclic-function-indirection error if there is a loop in the |
2098 | function chain of symbols. */) | |
5842a27b | 2099 | (register Lisp_Object object, Lisp_Object noerror) |
ffd56f97 JB |
2100 | { |
2101 | Lisp_Object result; | |
2102 | ||
64de53d8 KS |
2103 | /* Optimize for no indirection. */ |
2104 | result = object; | |
eadf1faa | 2105 | if (SYMBOLP (result) && !NILP (result) |
c644523b | 2106 | && (result = XSYMBOL (result)->function, SYMBOLP (result))) |
64de53d8 | 2107 | result = indirect_function (result); |
eadf1faa | 2108 | if (!NILP (result)) |
64de53d8 | 2109 | return result; |
ffd56f97 | 2110 | |
64de53d8 | 2111 | if (NILP (noerror)) |
740ef0b5 | 2112 | xsignal1 (Qvoid_function, object); |
ffd56f97 | 2113 | |
64de53d8 | 2114 | return Qnil; |
ffd56f97 JB |
2115 | } |
2116 | \f | |
7abaf5cc | 2117 | /* Extract and set vector and string elements. */ |
7921925c | 2118 | |
a7ca3326 | 2119 | DEFUN ("aref", Faref, Saref, 2, 2, 0, |
8c1a1077 PJ |
2120 | doc: /* Return the element of ARRAY at index IDX. |
2121 | ARRAY may be a vector, a string, a char-table, a bool-vector, | |
2122 | or a byte-code object. IDX starts at 0. */) | |
5842a27b | 2123 | (register Lisp_Object array, Lisp_Object idx) |
7921925c | 2124 | { |
ace1712c | 2125 | register EMACS_INT idxval; |
7921925c | 2126 | |
b7826503 | 2127 | CHECK_NUMBER (idx); |
7921925c | 2128 | idxval = XINT (idx); |
e9ebc175 | 2129 | if (STRINGP (array)) |
7921925c | 2130 | { |
ace1712c | 2131 | int c; |
d311d28c | 2132 | ptrdiff_t idxval_byte; |
25638b07 | 2133 | |
d5db4077 | 2134 | if (idxval < 0 || idxval >= SCHARS (array)) |
c24e4efe | 2135 | args_out_of_range (array, idx); |
25638b07 | 2136 | if (! STRING_MULTIBYTE (array)) |
d5db4077 | 2137 | return make_number ((unsigned char) SREF (array, idxval)); |
25638b07 RS |
2138 | idxval_byte = string_char_to_byte (array, idxval); |
2139 | ||
62a6e103 | 2140 | c = STRING_CHAR (SDATA (array) + idxval_byte); |
25638b07 | 2141 | return make_number (c); |
7921925c | 2142 | } |
4d276982 RS |
2143 | else if (BOOL_VECTOR_P (array)) |
2144 | { | |
1c0a7493 | 2145 | if (idxval < 0 || idxval >= bool_vector_size (array)) |
4d276982 | 2146 | args_out_of_range (array, idx); |
df5b4930 | 2147 | return bool_vector_ref (array, idxval); |
4d276982 RS |
2148 | } |
2149 | else if (CHAR_TABLE_P (array)) | |
2150 | { | |
e6e1f521 KH |
2151 | CHECK_CHARACTER (idx); |
2152 | return CHAR_TABLE_REF (array, idxval); | |
4d276982 | 2153 | } |
7921925c | 2154 | else |
c24e4efe | 2155 | { |
90d8445b | 2156 | ptrdiff_t size = 0; |
7f358972 | 2157 | if (VECTORP (array)) |
77b37c05 | 2158 | size = ASIZE (array); |
876c194c | 2159 | else if (COMPILEDP (array)) |
77b37c05 | 2160 | size = ASIZE (array) & PSEUDOVECTOR_SIZE_MASK; |
7f358972 RS |
2161 | else |
2162 | wrong_type_argument (Qarrayp, array); | |
2163 | ||
2164 | if (idxval < 0 || idxval >= size) | |
c24e4efe | 2165 | args_out_of_range (array, idx); |
b9598260 | 2166 | return AREF (array, idxval); |
c24e4efe | 2167 | } |
7921925c JB |
2168 | } |
2169 | ||
a7ca3326 | 2170 | DEFUN ("aset", Faset, Saset, 3, 3, 0, |
8c1a1077 | 2171 | doc: /* Store into the element of ARRAY at index IDX the value NEWELT. |
bfb96cb7 FP |
2172 | Return NEWELT. ARRAY may be a vector, a string, a char-table or a |
2173 | bool-vector. IDX starts at 0. */) | |
5842a27b | 2174 | (register Lisp_Object array, Lisp_Object idx, Lisp_Object newelt) |
7921925c | 2175 | { |
ace1712c | 2176 | register EMACS_INT idxval; |
7921925c | 2177 | |
b7826503 | 2178 | CHECK_NUMBER (idx); |
7921925c | 2179 | idxval = XINT (idx); |
0c64a8cd | 2180 | CHECK_ARRAY (array, Qarrayp); |
7921925c JB |
2181 | CHECK_IMPURE (array); |
2182 | ||
e9ebc175 | 2183 | if (VECTORP (array)) |
c24e4efe | 2184 | { |
77b37c05 | 2185 | if (idxval < 0 || idxval >= ASIZE (array)) |
c24e4efe | 2186 | args_out_of_range (array, idx); |
28be1ada | 2187 | ASET (array, idxval, newelt); |
c24e4efe | 2188 | } |
4d276982 RS |
2189 | else if (BOOL_VECTOR_P (array)) |
2190 | { | |
1c0a7493 | 2191 | if (idxval < 0 || idxval >= bool_vector_size (array)) |
4d276982 | 2192 | args_out_of_range (array, idx); |
df5b4930 | 2193 | bool_vector_set (array, idxval, !NILP (newelt)); |
4d276982 RS |
2194 | } |
2195 | else if (CHAR_TABLE_P (array)) | |
2196 | { | |
e6e1f521 KH |
2197 | CHECK_CHARACTER (idx); |
2198 | CHAR_TABLE_SET (array, idxval, newelt); | |
4d276982 | 2199 | } |
0fed43f3 | 2200 | else |
25638b07 | 2201 | { |
13bdea59 | 2202 | int c; |
25638b07 | 2203 | |
d5db4077 | 2204 | if (idxval < 0 || idxval >= SCHARS (array)) |
25638b07 | 2205 | args_out_of_range (array, idx); |
d9130605 | 2206 | CHECK_CHARACTER (newelt); |
13bdea59 | 2207 | c = XFASTINT (newelt); |
25638b07 | 2208 | |
0fed43f3 | 2209 | if (STRING_MULTIBYTE (array)) |
3c9de1af | 2210 | { |
d311d28c PE |
2211 | ptrdiff_t idxval_byte, nbytes; |
2212 | int prev_bytes, new_bytes; | |
0fed43f3 PE |
2213 | unsigned char workbuf[MAX_MULTIBYTE_LENGTH], *p0 = workbuf, *p1; |
2214 | ||
2215 | nbytes = SBYTES (array); | |
2216 | idxval_byte = string_char_to_byte (array, idxval); | |
d5db4077 | 2217 | p1 = SDATA (array) + idxval_byte; |
0fed43f3 PE |
2218 | prev_bytes = BYTES_BY_CHAR_HEAD (*p1); |
2219 | new_bytes = CHAR_STRING (c, p0); | |
2220 | if (prev_bytes != new_bytes) | |
2221 | { | |
2222 | /* We must relocate the string data. */ | |
d311d28c | 2223 | ptrdiff_t nchars = SCHARS (array); |
0fed43f3 | 2224 | USE_SAFE_ALLOCA; |
98c6f1e3 | 2225 | unsigned char *str = SAFE_ALLOCA (nbytes); |
0fed43f3 | 2226 | |
0fed43f3 PE |
2227 | memcpy (str, SDATA (array), nbytes); |
2228 | allocate_string_data (XSTRING (array), nchars, | |
2229 | nbytes + new_bytes - prev_bytes); | |
2230 | memcpy (SDATA (array), str, idxval_byte); | |
2231 | p1 = SDATA (array) + idxval_byte; | |
2232 | memcpy (p1 + new_bytes, str + idxval_byte + prev_bytes, | |
2233 | nbytes - (idxval_byte + prev_bytes)); | |
2234 | SAFE_FREE (); | |
2235 | clear_string_char_byte_cache (); | |
2236 | } | |
2237 | while (new_bytes--) | |
2238 | *p1++ = *p0++; | |
3c9de1af | 2239 | } |
0fed43f3 | 2240 | else |
5dff5999 | 2241 | { |
0fed43f3 PE |
2242 | if (! SINGLE_BYTE_CHAR_P (c)) |
2243 | { | |
2244 | int i; | |
2245 | ||
2246 | for (i = SBYTES (array) - 1; i >= 0; i--) | |
2247 | if (SREF (array, i) >= 0x80) | |
2248 | args_out_of_range (array, newelt); | |
2249 | /* ARRAY is an ASCII string. Convert it to a multibyte | |
2250 | string, and try `aset' again. */ | |
2251 | STRING_SET_MULTIBYTE (array); | |
2252 | return Faset (array, idx, newelt); | |
2253 | } | |
2254 | SSET (array, idxval, c); | |
5dff5999 | 2255 | } |
7921925c JB |
2256 | } |
2257 | ||
2258 | return newelt; | |
2259 | } | |
7921925c JB |
2260 | \f |
2261 | /* Arithmetic functions */ | |
2262 | ||
ebb99847 BR |
2263 | Lisp_Object |
2264 | arithcompare (Lisp_Object num1, Lisp_Object num2, enum Arith_Comparison comparison) | |
7921925c | 2265 | { |
6bbd7a29 | 2266 | double f1 = 0, f2 = 0; |
de1339b0 | 2267 | bool floatp = 0; |
7921925c | 2268 | |
b7826503 PJ |
2269 | CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (num1); |
2270 | CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (num2); | |
7921925c | 2271 | |
e9ebc175 | 2272 | if (FLOATP (num1) || FLOATP (num2)) |
7921925c JB |
2273 | { |
2274 | floatp = 1; | |
7539e11f KR |
2275 | f1 = (FLOATP (num1)) ? XFLOAT_DATA (num1) : XINT (num1); |
2276 | f2 = (FLOATP (num2)) ? XFLOAT_DATA (num2) : XINT (num2); | |
7921925c | 2277 | } |
7921925c JB |
2278 | |
2279 | switch (comparison) | |
2280 | { | |
ebb99847 | 2281 | case ARITH_EQUAL: |
7921925c JB |
2282 | if (floatp ? f1 == f2 : XINT (num1) == XINT (num2)) |
2283 | return Qt; | |
2284 | return Qnil; | |
2285 | ||
ebb99847 | 2286 | case ARITH_NOTEQUAL: |
7921925c JB |
2287 | if (floatp ? f1 != f2 : XINT (num1) != XINT (num2)) |
2288 | return Qt; | |
2289 | return Qnil; | |
2290 | ||
ebb99847 | 2291 | case ARITH_LESS: |
7921925c JB |
2292 | if (floatp ? f1 < f2 : XINT (num1) < XINT (num2)) |
2293 | return Qt; | |
2294 | return Qnil; | |
2295 | ||
ebb99847 | 2296 | case ARITH_LESS_OR_EQUAL: |
7921925c JB |
2297 | if (floatp ? f1 <= f2 : XINT (num1) <= XINT (num2)) |
2298 | return Qt; | |
2299 | return Qnil; | |
2300 | ||
ebb99847 | 2301 | case ARITH_GRTR: |
7921925c JB |
2302 | if (floatp ? f1 > f2 : XINT (num1) > XINT (num2)) |
2303 | return Qt; | |
2304 | return Qnil; | |
2305 | ||
ebb99847 | 2306 | case ARITH_GRTR_OR_EQUAL: |
7921925c JB |
2307 | if (floatp ? f1 >= f2 : XINT (num1) >= XINT (num2)) |
2308 | return Qt; | |
2309 | return Qnil; | |
25e40a4b JB |
2310 | |
2311 | default: | |
1088b922 | 2312 | emacs_abort (); |
7921925c JB |
2313 | } |
2314 | } | |
2315 | ||
ebb99847 BR |
2316 | static Lisp_Object |
2317 | arithcompare_driver (ptrdiff_t nargs, Lisp_Object *args, | |
2318 | enum Arith_Comparison comparison) | |
7921925c | 2319 | { |
56a0e352 PE |
2320 | ptrdiff_t argnum; |
2321 | for (argnum = 1; argnum < nargs; ++argnum) | |
ebb99847 | 2322 | { |
4c539a7b | 2323 | if (EQ (Qnil, arithcompare (args[argnum - 1], args[argnum], comparison))) |
ebb99847 BR |
2324 | return Qnil; |
2325 | } | |
2326 | return Qt; | |
7921925c JB |
2327 | } |
2328 | ||
ebb99847 | 2329 | DEFUN ("=", Feqlsign, Seqlsign, 1, MANY, 0, |
53482f41 DA |
2330 | doc: /* Return t if args, all numbers or markers, are equal. |
2331 | usage: (= NUMBER-OR-MARKER &rest NUMBERS-OR-MARKERS) */) | |
ebb99847 | 2332 | (ptrdiff_t nargs, Lisp_Object *args) |
7921925c | 2333 | { |
ebb99847 | 2334 | return arithcompare_driver (nargs, args, ARITH_EQUAL); |
7921925c JB |
2335 | } |
2336 | ||
ebb99847 | 2337 | DEFUN ("<", Flss, Slss, 1, MANY, 0, |
7b385b02 | 2338 | doc: /* Return t if each arg (a number or marker), is less than the next arg. |
53482f41 | 2339 | usage: (< NUMBER-OR-MARKER &rest NUMBERS-OR-MARKERS) */) |
ebb99847 | 2340 | (ptrdiff_t nargs, Lisp_Object *args) |
7921925c | 2341 | { |
ebb99847 | 2342 | return arithcompare_driver (nargs, args, ARITH_LESS); |
7921925c JB |
2343 | } |
2344 | ||
ebb99847 | 2345 | DEFUN (">", Fgtr, Sgtr, 1, MANY, 0, |
7b385b02 | 2346 | doc: /* Return t if each arg (a number or marker) is greater than the next arg. |
53482f41 | 2347 | usage: (> NUMBER-OR-MARKER &rest NUMBERS-OR-MARKERS) */) |
ebb99847 | 2348 | (ptrdiff_t nargs, Lisp_Object *args) |
7921925c | 2349 | { |
ebb99847 | 2350 | return arithcompare_driver (nargs, args, ARITH_GRTR); |
7921925c JB |
2351 | } |
2352 | ||
ebb99847 | 2353 | DEFUN ("<=", Fleq, Sleq, 1, MANY, 0, |
7b385b02 | 2354 | doc: /* Return t if each arg (a number or marker) is less than or equal to the next. |
53482f41 | 2355 | usage: (<= NUMBER-OR-MARKER &rest NUMBERS-OR-MARKERS) */) |
ebb99847 BR |
2356 | (ptrdiff_t nargs, Lisp_Object *args) |
2357 | { | |
2358 | return arithcompare_driver (nargs, args, ARITH_LESS_OR_EQUAL); | |
2359 | } | |
2360 | ||
2361 | DEFUN (">=", Fgeq, Sgeq, 1, MANY, 0, | |
7b385b02 | 2362 | doc: /* Return t if each arg (a number or marker) is greater than or equal to the next. |
bd21bf41 | 2363 | usage: (>= NUMBER-OR-MARKER &rest NUMBERS-OR-MARKERS) */) |
ebb99847 | 2364 | (ptrdiff_t nargs, Lisp_Object *args) |
7921925c | 2365 | { |
ebb99847 | 2366 | return arithcompare_driver (nargs, args, ARITH_GRTR_OR_EQUAL); |
7921925c JB |
2367 | } |
2368 | ||
2369 | DEFUN ("/=", Fneq, Sneq, 2, 2, 0, | |
8c1a1077 | 2370 | doc: /* Return t if first arg is not equal to second arg. Both must be numbers or markers. */) |
5842a27b | 2371 | (register Lisp_Object num1, Lisp_Object num2) |
7921925c | 2372 | { |
ebb99847 | 2373 | return arithcompare (num1, num2, ARITH_NOTEQUAL); |
7921925c | 2374 | } |
7921925c | 2375 | \f |
be44ca6c PE |
2376 | /* Convert the cons-of-integers, integer, or float value C to an |
2377 | unsigned value with maximum value MAX. Signal an error if C does not | |
2378 | have a valid format or is out of range. */ | |
2379 | uintmax_t | |
2380 | cons_to_unsigned (Lisp_Object c, uintmax_t max) | |
2381 | { | |
de1339b0 | 2382 | bool valid = 0; |
be44ca6c PE |
2383 | uintmax_t val IF_LINT (= 0); |
2384 | if (INTEGERP (c)) | |
2385 | { | |
2386 | valid = 0 <= XINT (c); | |
2387 | val = XINT (c); | |
2388 | } | |
2389 | else if (FLOATP (c)) | |
2390 | { | |
2391 | double d = XFLOAT_DATA (c); | |
2392 | if (0 <= d | |
2393 | && d < (max == UINTMAX_MAX ? (double) UINTMAX_MAX + 1 : max + 1)) | |
2394 | { | |
2395 | val = d; | |
2396 | valid = 1; | |
2397 | } | |
2398 | } | |
2399 | else if (CONSP (c) && NATNUMP (XCAR (c))) | |
2400 | { | |
2401 | uintmax_t top = XFASTINT (XCAR (c)); | |
2402 | Lisp_Object rest = XCDR (c); | |
2403 | if (top <= UINTMAX_MAX >> 24 >> 16 | |
2404 | && CONSP (rest) | |
2405 | && NATNUMP (XCAR (rest)) && XFASTINT (XCAR (rest)) < 1 << 24 | |
2406 | && NATNUMP (XCDR (rest)) && XFASTINT (XCDR (rest)) < 1 << 16) | |
2407 | { | |
2408 | uintmax_t mid = XFASTINT (XCAR (rest)); | |
2409 | val = top << 24 << 16 | mid << 16 | XFASTINT (XCDR (rest)); | |
2410 | valid = 1; | |
2411 | } | |
2412 | else if (top <= UINTMAX_MAX >> 16) | |
2413 | { | |
2414 | if (CONSP (rest)) | |
2415 | rest = XCAR (rest); | |
2416 | if (NATNUMP (rest) && XFASTINT (rest) < 1 << 16) | |
2417 | { | |
2418 | val = top << 16 | XFASTINT (rest); | |
2419 | valid = 1; | |
2420 | } | |
2421 | } | |
2422 | } | |
51cf3e31 | 2423 | |
be44ca6c PE |
2424 | if (! (valid && val <= max)) |
2425 | error ("Not an in-range integer, float, or cons of integers"); | |
2426 | return val; | |
51cf3e31 JB |
2427 | } |
2428 | ||
be44ca6c PE |
2429 | /* Convert the cons-of-integers, integer, or float value C to a signed |
2430 | value with extrema MIN and MAX. Signal an error if C does not have | |
2431 | a valid format or is out of range. */ | |
2432 | intmax_t | |
2433 | cons_to_signed (Lisp_Object c, intmax_t min, intmax_t max) | |
51cf3e31 | 2434 | { |
de1339b0 | 2435 | bool valid = 0; |
be44ca6c | 2436 | intmax_t val IF_LINT (= 0); |
51cf3e31 | 2437 | if (INTEGERP (c)) |
be44ca6c PE |
2438 | { |
2439 | val = XINT (c); | |
2440 | valid = 1; | |
2441 | } | |
2442 | else if (FLOATP (c)) | |
2443 | { | |
2444 | double d = XFLOAT_DATA (c); | |
2445 | if (min <= d | |
2446 | && d < (max == INTMAX_MAX ? (double) INTMAX_MAX + 1 : max + 1)) | |
2447 | { | |
2448 | val = d; | |
2449 | valid = 1; | |
2450 | } | |
2451 | } | |
2452 | else if (CONSP (c) && INTEGERP (XCAR (c))) | |
2453 | { | |
2454 | intmax_t top = XINT (XCAR (c)); | |
2455 | Lisp_Object rest = XCDR (c); | |
2456 | if (INTMAX_MIN >> 24 >> 16 <= top && top <= INTMAX_MAX >> 24 >> 16 | |
2457 | && CONSP (rest) | |
2458 | && NATNUMP (XCAR (rest)) && XFASTINT (XCAR (rest)) < 1 << 24 | |
2459 | && NATNUMP (XCDR (rest)) && XFASTINT (XCDR (rest)) < 1 << 16) | |
2460 | { | |
2461 | intmax_t mid = XFASTINT (XCAR (rest)); | |
2462 | val = top << 24 << 16 | mid << 16 | XFASTINT (XCDR (rest)); | |
2463 | valid = 1; | |
2464 | } | |
2465 | else if (INTMAX_MIN >> 16 <= top && top <= INTMAX_MAX >> 16) | |
2466 | { | |
2467 | if (CONSP (rest)) | |
2468 | rest = XCAR (rest); | |
2469 | if (NATNUMP (rest) && XFASTINT (rest) < 1 << 16) | |
2470 | { | |
2471 | val = top << 16 | XFASTINT (rest); | |
2472 | valid = 1; | |
2473 | } | |
2474 | } | |
2475 | } | |
2476 | ||
2477 | if (! (valid && min <= val && val <= max)) | |
2478 | error ("Not an in-range integer, float, or cons of integers"); | |
2479 | return val; | |
51cf3e31 JB |
2480 | } |
2481 | \f | |
a7ca3326 | 2482 | DEFUN ("number-to-string", Fnumber_to_string, Snumber_to_string, 1, 1, 0, |
bfb96cb7 | 2483 | doc: /* Return the decimal representation of NUMBER as a string. |
8c1a1077 PJ |
2484 | Uses a minus sign if negative. |
2485 | NUMBER may be an integer or a floating point number. */) | |
5842a27b | 2486 | (Lisp_Object number) |
7921925c | 2487 | { |
99027bdd PE |
2488 | char buffer[max (FLOAT_TO_STRING_BUFSIZE, INT_BUFSIZE_BOUND (EMACS_INT))]; |
2489 | int len; | |
7921925c | 2490 | |
b7826503 | 2491 | CHECK_NUMBER_OR_FLOAT (number); |
7921925c | 2492 | |
d9c2a0f2 | 2493 | if (FLOATP (number)) |
99027bdd PE |
2494 | len = float_to_string (buffer, XFLOAT_DATA (number)); |
2495 | else | |
2496 | len = sprintf (buffer, "%"pI"d", XINT (number)); | |
7921925c | 2497 | |
99027bdd | 2498 | return make_unibyte_string (buffer, len); |
7921925c JB |
2499 | } |
2500 | ||
a7ca3326 | 2501 | DEFUN ("string-to-number", Fstring_to_number, Sstring_to_number, 1, 2, 0, |
558ee900 | 2502 | doc: /* Parse STRING as a decimal number and return the number. |
12cb2b06 PE |
2503 | Ignore leading spaces and tabs, and all trailing chars. Return 0 if |
2504 | STRING cannot be parsed as an integer or floating point number. | |
8c1a1077 PJ |
2505 | |
2506 | If BASE, interpret STRING as a number in that base. If BASE isn't | |
2507 | present, base 10 is used. BASE must be between 2 and 16 (inclusive). | |
12cb2b06 | 2508 | If the base used is not 10, STRING is always parsed as an integer. */) |
5842a27b | 2509 | (register Lisp_Object string, Lisp_Object base) |
7921925c | 2510 | { |
57ace6d0 | 2511 | register char *p; |
342858a5 | 2512 | register int b; |
452f4150 | 2513 | Lisp_Object val; |
25e40a4b | 2514 | |
b7826503 | 2515 | CHECK_STRING (string); |
7921925c | 2516 | |
3883fbeb RS |
2517 | if (NILP (base)) |
2518 | b = 10; | |
2519 | else | |
2520 | { | |
b7826503 | 2521 | CHECK_NUMBER (base); |
d311d28c | 2522 | if (! (2 <= XINT (base) && XINT (base) <= 16)) |
740ef0b5 | 2523 | xsignal1 (Qargs_out_of_range, base); |
d311d28c | 2524 | b = XINT (base); |
3883fbeb RS |
2525 | } |
2526 | ||
57ace6d0 | 2527 | p = SSDATA (string); |
0a3e4d65 | 2528 | while (*p == ' ' || *p == '\t') |
25e40a4b JB |
2529 | p++; |
2530 | ||
452f4150 PE |
2531 | val = string_to_number (p, b, 1); |
2532 | return NILP (val) ? make_number (0) : val; | |
7921925c | 2533 | } |
7403b5c8 | 2534 | \f |
7921925c | 2535 | enum arithop |
7a283f36 GM |
2536 | { |
2537 | Aadd, | |
2538 | Asub, | |
2539 | Amult, | |
2540 | Adiv, | |
2541 | Alogand, | |
2542 | Alogior, | |
2543 | Alogxor, | |
2544 | Amax, | |
2545 | Amin | |
2546 | }; | |
2547 | ||
f66c7cf8 PE |
2548 | static Lisp_Object float_arith_driver (double, ptrdiff_t, enum arithop, |
2549 | ptrdiff_t, Lisp_Object *); | |
112396d6 | 2550 | static Lisp_Object |
f66c7cf8 | 2551 | arith_driver (enum arithop code, ptrdiff_t nargs, Lisp_Object *args) |
7921925c | 2552 | { |
de1339b0 PE |
2553 | Lisp_Object val; |
2554 | ptrdiff_t argnum, ok_args; | |
2555 | EMACS_INT accum = 0; | |
2556 | EMACS_INT next, ok_accum; | |
2557 | bool overflow = 0; | |
0ae6bdee | 2558 | |
7393bcbb | 2559 | switch (code) |
7921925c JB |
2560 | { |
2561 | case Alogior: | |
2562 | case Alogxor: | |
2563 | case Aadd: | |
2564 | case Asub: | |
7a283f36 GM |
2565 | accum = 0; |
2566 | break; | |
7921925c | 2567 | case Amult: |
7a283f36 GM |
2568 | accum = 1; |
2569 | break; | |
7921925c | 2570 | case Alogand: |
7a283f36 GM |
2571 | accum = -1; |
2572 | break; | |
2573 | default: | |
2574 | break; | |
7921925c JB |
2575 | } |
2576 | ||
2577 | for (argnum = 0; argnum < nargs; argnum++) | |
2578 | { | |
0ae6bdee PE |
2579 | if (! overflow) |
2580 | { | |
2581 | ok_args = argnum; | |
2582 | ok_accum = accum; | |
2583 | } | |
2584 | ||
7a283f36 GM |
2585 | /* Using args[argnum] as argument to CHECK_NUMBER_... */ |
2586 | val = args[argnum]; | |
b7826503 | 2587 | CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (val); |
7921925c | 2588 | |
7a283f36 | 2589 | if (FLOATP (val)) |
0ae6bdee | 2590 | return float_arith_driver (ok_accum, ok_args, code, |
7a283f36 GM |
2591 | nargs, args); |
2592 | args[argnum] = val; | |
7921925c | 2593 | next = XINT (args[argnum]); |
7393bcbb | 2594 | switch (code) |
7921925c | 2595 | { |
7a283f36 | 2596 | case Aadd: |
0ae6bdee PE |
2597 | if (INT_ADD_OVERFLOW (accum, next)) |
2598 | { | |
2599 | overflow = 1; | |
2600 | accum &= INTMASK; | |
2601 | } | |
7a283f36 GM |
2602 | accum += next; |
2603 | break; | |
7921925c | 2604 | case Asub: |
0ae6bdee PE |
2605 | if (INT_SUBTRACT_OVERFLOW (accum, next)) |
2606 | { | |
2607 | overflow = 1; | |
2608 | accum &= INTMASK; | |
2609 | } | |
e64981da | 2610 | accum = argnum ? accum - next : nargs == 1 ? - next : next; |
7921925c | 2611 | break; |
7a283f36 | 2612 | case Amult: |
0ae6bdee PE |
2613 | if (INT_MULTIPLY_OVERFLOW (accum, next)) |
2614 | { | |
c8a9ca5a | 2615 | EMACS_UINT a = accum, b = next, ab = a * b; |
0ae6bdee | 2616 | overflow = 1; |
c8a9ca5a | 2617 | accum = ab & INTMASK; |
0ae6bdee PE |
2618 | } |
2619 | else | |
2620 | accum *= next; | |
7a283f36 | 2621 | break; |
7921925c | 2622 | case Adiv: |
7a283f36 GM |
2623 | if (!argnum) |
2624 | accum = next; | |
87fbf902 RS |
2625 | else |
2626 | { | |
2627 | if (next == 0) | |
740ef0b5 | 2628 | xsignal0 (Qarith_error); |
87fbf902 RS |
2629 | accum /= next; |
2630 | } | |
7921925c | 2631 | break; |
7a283f36 GM |
2632 | case Alogand: |
2633 | accum &= next; | |
2634 | break; | |
2635 | case Alogior: | |
2636 | accum |= next; | |
2637 | break; | |
2638 | case Alogxor: | |
2639 | accum ^= next; | |
2640 | break; | |
2641 | case Amax: | |
2642 | if (!argnum || next > accum) | |
2643 | accum = next; | |
2644 | break; | |
2645 | case Amin: | |
2646 | if (!argnum || next < accum) | |
2647 | accum = next; | |
2648 | break; | |
7921925c JB |
2649 | } |
2650 | } | |
2651 | ||
f187f1f7 | 2652 | XSETINT (val, accum); |
7921925c JB |
2653 | return val; |
2654 | } | |
2655 | ||
1a2f2d33 KH |
2656 | #undef isnan |
2657 | #define isnan(x) ((x) != (x)) | |
2658 | ||
7a283f36 | 2659 | static Lisp_Object |
f66c7cf8 PE |
2660 | float_arith_driver (double accum, ptrdiff_t argnum, enum arithop code, |
2661 | ptrdiff_t nargs, Lisp_Object *args) | |
7921925c JB |
2662 | { |
2663 | register Lisp_Object val; | |
2664 | double next; | |
7403b5c8 | 2665 | |
7921925c JB |
2666 | for (; argnum < nargs; argnum++) |
2667 | { | |
2668 | val = args[argnum]; /* using args[argnum] as argument to CHECK_NUMBER_... */ | |
b7826503 | 2669 | CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (val); |
7921925c | 2670 | |
e9ebc175 | 2671 | if (FLOATP (val)) |
7921925c | 2672 | { |
7539e11f | 2673 | next = XFLOAT_DATA (val); |
7921925c JB |
2674 | } |
2675 | else | |
2676 | { | |
2677 | args[argnum] = val; /* runs into a compiler bug. */ | |
2678 | next = XINT (args[argnum]); | |
2679 | } | |
7393bcbb | 2680 | switch (code) |
7921925c JB |
2681 | { |
2682 | case Aadd: | |
2683 | accum += next; | |
2684 | break; | |
2685 | case Asub: | |
e64981da | 2686 | accum = argnum ? accum - next : nargs == 1 ? - next : next; |
7921925c JB |
2687 | break; |
2688 | case Amult: | |
2689 | accum *= next; | |
2690 | break; | |
2691 | case Adiv: | |
2692 | if (!argnum) | |
2693 | accum = next; | |
2694 | else | |
87fbf902 | 2695 | { |
ad8d56b9 | 2696 | if (! IEEE_FLOATING_POINT && next == 0) |
740ef0b5 | 2697 | xsignal0 (Qarith_error); |
87fbf902 RS |
2698 | accum /= next; |
2699 | } | |
7921925c JB |
2700 | break; |
2701 | case Alogand: | |
2702 | case Alogior: | |
2703 | case Alogxor: | |
2704 | return wrong_type_argument (Qinteger_or_marker_p, val); | |
2705 | case Amax: | |
1a2f2d33 | 2706 | if (!argnum || isnan (next) || next > accum) |
7921925c JB |
2707 | accum = next; |
2708 | break; | |
2709 | case Amin: | |
1a2f2d33 | 2710 | if (!argnum || isnan (next) || next < accum) |
7921925c JB |
2711 | accum = next; |
2712 | break; | |
2713 | } | |
2714 | } | |
2715 | ||
2716 | return make_float (accum); | |
2717 | } | |
cc94f3b2 | 2718 | |
7921925c | 2719 | |
a7ca3326 | 2720 | DEFUN ("+", Fplus, Splus, 0, MANY, 0, |
8c1a1077 PJ |
2721 | doc: /* Return sum of any number of arguments, which are numbers or markers. |
2722 | usage: (+ &rest NUMBERS-OR-MARKERS) */) | |
f66c7cf8 | 2723 | (ptrdiff_t nargs, Lisp_Object *args) |
7921925c JB |
2724 | { |
2725 | return arith_driver (Aadd, nargs, args); | |
2726 | } | |
2727 | ||
a7ca3326 | 2728 | DEFUN ("-", Fminus, Sminus, 0, MANY, 0, |
558ee900 | 2729 | doc: /* Negate number or subtract numbers or markers and return the result. |
8c1a1077 | 2730 | With one arg, negates it. With more than one arg, |
f44fba9e | 2731 | subtracts all but the first from the first. |
8c1a1077 | 2732 | usage: (- &optional NUMBER-OR-MARKER &rest MORE-NUMBERS-OR-MARKERS) */) |
f66c7cf8 | 2733 | (ptrdiff_t nargs, Lisp_Object *args) |
7921925c JB |
2734 | { |
2735 | return arith_driver (Asub, nargs, args); | |
2736 | } | |
2737 | ||
a7ca3326 | 2738 | DEFUN ("*", Ftimes, Stimes, 0, MANY, 0, |
be24eadf | 2739 | doc: /* Return product of any number of arguments, which are numbers or markers. |
8c1a1077 | 2740 | usage: (* &rest NUMBERS-OR-MARKERS) */) |
f66c7cf8 | 2741 | (ptrdiff_t nargs, Lisp_Object *args) |
7921925c JB |
2742 | { |
2743 | return arith_driver (Amult, nargs, args); | |
2744 | } | |
2745 | ||
32e5c58c | 2746 | DEFUN ("/", Fquo, Squo, 1, MANY, 0, |
be24eadf | 2747 | doc: /* Return first argument divided by all the remaining arguments. |
f44fba9e | 2748 | The arguments must be numbers or markers. |
32e5c58c | 2749 | usage: (/ DIVIDEND &rest DIVISORS) */) |
f66c7cf8 | 2750 | (ptrdiff_t nargs, Lisp_Object *args) |
7921925c | 2751 | { |
f66c7cf8 | 2752 | ptrdiff_t argnum; |
7ef98053 | 2753 | for (argnum = 2; argnum < nargs; argnum++) |
28712a21 JB |
2754 | if (FLOATP (args[argnum])) |
2755 | return float_arith_driver (0, 0, Adiv, nargs, args); | |
7921925c JB |
2756 | return arith_driver (Adiv, nargs, args); |
2757 | } | |
2758 | ||
a7ca3326 | 2759 | DEFUN ("%", Frem, Srem, 2, 2, 0, |
be24eadf | 2760 | doc: /* Return remainder of X divided by Y. |
8c1a1077 | 2761 | Both must be integers or markers. */) |
5842a27b | 2762 | (register Lisp_Object x, Lisp_Object y) |
7921925c JB |
2763 | { |
2764 | Lisp_Object val; | |
2765 | ||
b7826503 PJ |
2766 | CHECK_NUMBER_COERCE_MARKER (x); |
2767 | CHECK_NUMBER_COERCE_MARKER (y); | |
7921925c | 2768 | |
d311d28c | 2769 | if (XINT (y) == 0) |
740ef0b5 | 2770 | xsignal0 (Qarith_error); |
87fbf902 | 2771 | |
d9c2a0f2 | 2772 | XSETINT (val, XINT (x) % XINT (y)); |
7921925c JB |
2773 | return val; |
2774 | } | |
2775 | ||
44fa9da5 | 2776 | DEFUN ("mod", Fmod, Smod, 2, 2, 0, |
be24eadf | 2777 | doc: /* Return X modulo Y. |
8c1a1077 PJ |
2778 | The result falls between zero (inclusive) and Y (exclusive). |
2779 | Both X and Y must be numbers or markers. */) | |
5842a27b | 2780 | (register Lisp_Object x, Lisp_Object y) |
44fa9da5 PE |
2781 | { |
2782 | Lisp_Object val; | |
5260234d | 2783 | EMACS_INT i1, i2; |
44fa9da5 | 2784 | |
b7826503 PJ |
2785 | CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (x); |
2786 | CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (y); | |
44fa9da5 | 2787 | |
d9c2a0f2 | 2788 | if (FLOATP (x) || FLOATP (y)) |
ad8d56b9 PE |
2789 | return fmod_float (x, y); |
2790 | ||
d9c2a0f2 EN |
2791 | i1 = XINT (x); |
2792 | i2 = XINT (y); | |
44fa9da5 PE |
2793 | |
2794 | if (i2 == 0) | |
740ef0b5 | 2795 | xsignal0 (Qarith_error); |
7403b5c8 | 2796 | |
44fa9da5 PE |
2797 | i1 %= i2; |
2798 | ||
2799 | /* If the "remainder" comes out with the wrong sign, fix it. */ | |
04f7ec69 | 2800 | if (i2 < 0 ? i1 > 0 : i1 < 0) |
44fa9da5 PE |
2801 | i1 += i2; |
2802 | ||
f187f1f7 | 2803 | XSETINT (val, i1); |
44fa9da5 PE |
2804 | return val; |
2805 | } | |
2806 | ||
a7ca3326 | 2807 | DEFUN ("max", Fmax, Smax, 1, MANY, 0, |
8c1a1077 | 2808 | doc: /* Return largest of all the arguments (which must be numbers or markers). |
f44fba9e | 2809 | The value is always a number; markers are converted to numbers. |
8c1a1077 | 2810 | usage: (max NUMBER-OR-MARKER &rest NUMBERS-OR-MARKERS) */) |
f66c7cf8 | 2811 | (ptrdiff_t nargs, Lisp_Object *args) |
7921925c JB |
2812 | { |
2813 | return arith_driver (Amax, nargs, args); | |
2814 | } | |
2815 | ||
a7ca3326 | 2816 | DEFUN ("min", Fmin, Smin, 1, MANY, 0, |
8c1a1077 | 2817 | doc: /* Return smallest of all the arguments (which must be numbers or markers). |
f44fba9e | 2818 | The value is always a number; markers are converted to numbers. |
8c1a1077 | 2819 | usage: (min NUMBER-OR-MARKER &rest NUMBERS-OR-MARKERS) */) |
f66c7cf8 | 2820 | (ptrdiff_t nargs, Lisp_Object *args) |
7921925c JB |
2821 | { |
2822 | return arith_driver (Amin, nargs, args); | |
2823 | } | |
2824 | ||
2825 | DEFUN ("logand", Flogand, Slogand, 0, MANY, 0, | |
8c1a1077 | 2826 | doc: /* Return bitwise-and of all the arguments. |
f44fba9e | 2827 | Arguments may be integers, or markers converted to integers. |
8c1a1077 | 2828 | usage: (logand &rest INTS-OR-MARKERS) */) |
f66c7cf8 | 2829 | (ptrdiff_t nargs, Lisp_Object *args) |
7921925c JB |
2830 | { |
2831 | return arith_driver (Alogand, nargs, args); | |
2832 | } | |
2833 | ||
2834 | DEFUN ("logior", Flogior, Slogior, 0, MANY, 0, | |
8c1a1077 | 2835 | doc: /* Return bitwise-or of all the arguments. |
f44fba9e | 2836 | Arguments may be integers, or markers converted to integers. |
8c1a1077 | 2837 | usage: (logior &rest INTS-OR-MARKERS) */) |
f66c7cf8 | 2838 | (ptrdiff_t nargs, Lisp_Object *args) |
7921925c JB |
2839 | { |
2840 | return arith_driver (Alogior, nargs, args); | |
2841 | } | |
2842 | ||
2843 | DEFUN ("logxor", Flogxor, Slogxor, 0, MANY, 0, | |
8c1a1077 | 2844 | doc: /* Return bitwise-exclusive-or of all the arguments. |
f44fba9e | 2845 | Arguments may be integers, or markers converted to integers. |
31fb1b2c | 2846 | usage: (logxor &rest INTS-OR-MARKERS) */) |
f66c7cf8 | 2847 | (ptrdiff_t nargs, Lisp_Object *args) |
7921925c JB |
2848 | { |
2849 | return arith_driver (Alogxor, nargs, args); | |
2850 | } | |
2851 | ||
2852 | DEFUN ("ash", Fash, Sash, 2, 2, 0, | |
8c1a1077 PJ |
2853 | doc: /* Return VALUE with its bits shifted left by COUNT. |
2854 | If COUNT is negative, shifting is actually to the right. | |
2855 | In this case, the sign bit is duplicated. */) | |
5842a27b | 2856 | (register Lisp_Object value, Lisp_Object count) |
7921925c JB |
2857 | { |
2858 | register Lisp_Object val; | |
2859 | ||
b7826503 PJ |
2860 | CHECK_NUMBER (value); |
2861 | CHECK_NUMBER (count); | |
7921925c | 2862 | |
81d70626 RS |
2863 | if (XINT (count) >= BITS_PER_EMACS_INT) |
2864 | XSETINT (val, 0); | |
2865 | else if (XINT (count) > 0) | |
6ab1b16c | 2866 | XSETINT (val, XUINT (value) << XFASTINT (count)); |
81d70626 RS |
2867 | else if (XINT (count) <= -BITS_PER_EMACS_INT) |
2868 | XSETINT (val, XINT (value) < 0 ? -1 : 0); | |
7921925c | 2869 | else |
3d9652eb | 2870 | XSETINT (val, XINT (value) >> -XINT (count)); |
7921925c JB |
2871 | return val; |
2872 | } | |
2873 | ||
2874 | DEFUN ("lsh", Flsh, Slsh, 2, 2, 0, | |
8c1a1077 PJ |
2875 | doc: /* Return VALUE with its bits shifted left by COUNT. |
2876 | If COUNT is negative, shifting is actually to the right. | |
3a9b1297 | 2877 | In this case, zeros are shifted in on the left. */) |
5842a27b | 2878 | (register Lisp_Object value, Lisp_Object count) |
7921925c JB |
2879 | { |
2880 | register Lisp_Object val; | |
2881 | ||
b7826503 PJ |
2882 | CHECK_NUMBER (value); |
2883 | CHECK_NUMBER (count); | |
7921925c | 2884 | |
81d70626 RS |
2885 | if (XINT (count) >= BITS_PER_EMACS_INT) |
2886 | XSETINT (val, 0); | |
2887 | else if (XINT (count) > 0) | |
c8a9ca5a | 2888 | XSETINT (val, XUINT (value) << XFASTINT (count)); |
81d70626 RS |
2889 | else if (XINT (count) <= -BITS_PER_EMACS_INT) |
2890 | XSETINT (val, 0); | |
7921925c | 2891 | else |
c8a9ca5a | 2892 | XSETINT (val, XUINT (value) >> -XINT (count)); |
7921925c JB |
2893 | return val; |
2894 | } | |
2895 | ||
a7ca3326 | 2896 | DEFUN ("1+", Fadd1, Sadd1, 1, 1, 0, |
8c1a1077 PJ |
2897 | doc: /* Return NUMBER plus one. NUMBER may be a number or a marker. |
2898 | Markers are converted to integers. */) | |
5842a27b | 2899 | (register Lisp_Object number) |
7921925c | 2900 | { |
b7826503 | 2901 | CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (number); |
7921925c | 2902 | |
d9c2a0f2 | 2903 | if (FLOATP (number)) |
7539e11f | 2904 | return (make_float (1.0 + XFLOAT_DATA (number))); |
7921925c | 2905 | |
d9c2a0f2 EN |
2906 | XSETINT (number, XINT (number) + 1); |
2907 | return number; | |
7921925c JB |
2908 | } |
2909 | ||
a7ca3326 | 2910 | DEFUN ("1-", Fsub1, Ssub1, 1, 1, 0, |
8c1a1077 PJ |
2911 | doc: /* Return NUMBER minus one. NUMBER may be a number or a marker. |
2912 | Markers are converted to integers. */) | |
5842a27b | 2913 | (register Lisp_Object number) |
7921925c | 2914 | { |
b7826503 | 2915 | CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (number); |
7921925c | 2916 | |
d9c2a0f2 | 2917 | if (FLOATP (number)) |
7539e11f | 2918 | return (make_float (-1.0 + XFLOAT_DATA (number))); |
7921925c | 2919 | |
d9c2a0f2 EN |
2920 | XSETINT (number, XINT (number) - 1); |
2921 | return number; | |
7921925c JB |
2922 | } |
2923 | ||
2924 | DEFUN ("lognot", Flognot, Slognot, 1, 1, 0, | |
8c1a1077 | 2925 | doc: /* Return the bitwise complement of NUMBER. NUMBER must be an integer. */) |
5842a27b | 2926 | (register Lisp_Object number) |
7921925c | 2927 | { |
b7826503 | 2928 | CHECK_NUMBER (number); |
53924017 | 2929 | XSETINT (number, ~XINT (number)); |
d9c2a0f2 | 2930 | return number; |
7921925c | 2931 | } |
6b61353c | 2932 | |
a7ca3326 | 2933 | DEFUN ("byteorder", Fbyteorder, Sbyteorder, 0, 0, 0, |
6b61353c KH |
2934 | doc: /* Return the byteorder for the machine. |
2935 | Returns 66 (ASCII uppercase B) for big endian machines or 108 (ASCII | |
2936 | lowercase l) for small endian machines. */) | |
5842a27b | 2937 | (void) |
6b61353c KH |
2938 | { |
2939 | unsigned i = 0x04030201; | |
2940 | int order = *(char *)&i == 1 ? 108 : 66; | |
2941 | ||
2942 | return make_number (order); | |
2943 | } | |
2944 | ||
3e0b94e7 DC |
2945 | /* Because we round up the bool vector allocate size to word_size |
2946 | units, we can safely read past the "end" of the vector in the | |
2cf00efc | 2947 | operations below. These extra bits are always zero. */ |
3e0b94e7 | 2948 | |
87c4314d | 2949 | static bits_word |
f2752e01 | 2950 | bool_vector_spare_mask (EMACS_INT nr_bits) |
3e0b94e7 | 2951 | { |
87c4314d | 2952 | return (((bits_word) 1) << (nr_bits % BITS_PER_BITS_WORD)) - 1; |
3e0b94e7 DC |
2953 | } |
2954 | ||
2cf00efc PE |
2955 | /* Info about unsigned long long, falling back on unsigned long |
2956 | if unsigned long long is not available. */ | |
2957 | ||
13a5993b | 2958 | #if HAVE_UNSIGNED_LONG_LONG_INT && defined ULLONG_MAX |
2cf00efc | 2959 | enum { BITS_PER_ULL = CHAR_BIT * sizeof (unsigned long long) }; |
56a0e352 | 2960 | # define ULL_MAX ULLONG_MAX |
3e0b94e7 | 2961 | #else |
2cf00efc | 2962 | enum { BITS_PER_ULL = CHAR_BIT * sizeof (unsigned long) }; |
56a0e352 | 2963 | # define ULL_MAX ULONG_MAX |
2cf00efc | 2964 | # define count_one_bits_ll count_one_bits_l |
56a0e352 | 2965 | # define count_trailing_zeros_ll count_trailing_zeros_l |
3e0b94e7 DC |
2966 | #endif |
2967 | ||
2cf00efc PE |
2968 | /* Shift VAL right by the width of an unsigned long long. |
2969 | BITS_PER_ULL must be less than BITS_PER_BITS_WORD. */ | |
2970 | ||
2971 | static bits_word | |
2972 | shift_right_ull (bits_word w) | |
2973 | { | |
2974 | /* Pacify bogus GCC warning about shift count exceeding type width. */ | |
2975 | int shift = BITS_PER_ULL - BITS_PER_BITS_WORD < 0 ? BITS_PER_ULL : 0; | |
2976 | return w >> shift; | |
2977 | } | |
2978 | ||
2979 | /* Return the number of 1 bits in W. */ | |
2980 | ||
2981 | static int | |
2982 | count_one_bits_word (bits_word w) | |
2983 | { | |
2984 | if (BITS_WORD_MAX <= UINT_MAX) | |
2985 | return count_one_bits (w); | |
2986 | else if (BITS_WORD_MAX <= ULONG_MAX) | |
2987 | return count_one_bits_l (w); | |
2988 | else | |
2989 | { | |
2990 | int i = 0, count = 0; | |
2991 | while (count += count_one_bits_ll (w), | |
0fadc0b0 | 2992 | (i += BITS_PER_ULL) < BITS_PER_BITS_WORD) |
2cf00efc PE |
2993 | w = shift_right_ull (w); |
2994 | return count; | |
2995 | } | |
2996 | } | |
2997 | ||
3e0b94e7 DC |
2998 | enum bool_vector_op { bool_vector_exclusive_or, |
2999 | bool_vector_union, | |
3000 | bool_vector_intersection, | |
3001 | bool_vector_set_difference, | |
3002 | bool_vector_subsetp }; | |
3003 | ||
7be68de5 | 3004 | static Lisp_Object |
23e79746 PE |
3005 | bool_vector_binop_driver (Lisp_Object a, |
3006 | Lisp_Object b, | |
3e0b94e7 DC |
3007 | Lisp_Object dest, |
3008 | enum bool_vector_op op) | |
3009 | { | |
3010 | EMACS_INT nr_bits; | |
23e79746 | 3011 | bits_word *adata, *bdata, *destdata; |
87d86601 | 3012 | ptrdiff_t i = 0; |
3e0b94e7 DC |
3013 | ptrdiff_t nr_words; |
3014 | ||
23e79746 PE |
3015 | CHECK_BOOL_VECTOR (a); |
3016 | CHECK_BOOL_VECTOR (b); | |
3e0b94e7 | 3017 | |
23e79746 PE |
3018 | nr_bits = bool_vector_size (a); |
3019 | if (bool_vector_size (b) != nr_bits) | |
3020 | wrong_length_argument (a, b, dest); | |
3e0b94e7 | 3021 | |
87d86601 | 3022 | nr_words = bool_vector_words (nr_bits); |
23e79746 PE |
3023 | adata = bool_vector_data (a); |
3024 | bdata = bool_vector_data (b); | |
87d86601 | 3025 | |
3e0b94e7 DC |
3026 | if (NILP (dest)) |
3027 | { | |
2cf00efc | 3028 | dest = make_uninit_bool_vector (nr_bits); |
23e79746 | 3029 | destdata = bool_vector_data (dest); |
3e0b94e7 DC |
3030 | } |
3031 | else | |
3032 | { | |
3033 | CHECK_BOOL_VECTOR (dest); | |
23e79746 | 3034 | destdata = bool_vector_data (dest); |
454e2fb9 | 3035 | if (bool_vector_size (dest) != nr_bits) |
23e79746 | 3036 | wrong_length_argument (a, b, dest); |
3e0b94e7 | 3037 | |
87d86601 PE |
3038 | switch (op) |
3039 | { | |
3040 | case bool_vector_exclusive_or: | |
75360f19 PE |
3041 | for (; i < nr_words; i++) |
3042 | if (destdata[i] != (adata[i] ^ bdata[i])) | |
3043 | goto set_dest; | |
87d86601 | 3044 | break; |
7be68de5 | 3045 | |
87d86601 | 3046 | case bool_vector_subsetp: |
75360f19 PE |
3047 | for (; i < nr_words; i++) |
3048 | if (adata[i] &~ bdata[i]) | |
87d86601 | 3049 | return Qnil; |
75360f19 PE |
3050 | return Qt; |
3051 | ||
3052 | case bool_vector_union: | |
3053 | for (; i < nr_words; i++) | |
3054 | if (destdata[i] != (adata[i] | bdata[i])) | |
3055 | goto set_dest; | |
87d86601 PE |
3056 | break; |
3057 | ||
3058 | case bool_vector_intersection: | |
75360f19 PE |
3059 | for (; i < nr_words; i++) |
3060 | if (destdata[i] != (adata[i] & bdata[i])) | |
3061 | goto set_dest; | |
87d86601 | 3062 | break; |
2cf00efc | 3063 | |
87d86601 | 3064 | case bool_vector_set_difference: |
75360f19 PE |
3065 | for (; i < nr_words; i++) |
3066 | if (destdata[i] != (adata[i] &~ bdata[i])) | |
3067 | goto set_dest; | |
87d86601 PE |
3068 | break; |
3069 | } | |
75360f19 PE |
3070 | |
3071 | return Qnil; | |
87d86601 PE |
3072 | } |
3073 | ||
75360f19 | 3074 | set_dest: |
87d86601 | 3075 | switch (op) |
3e0b94e7 | 3076 | { |
87d86601 | 3077 | case bool_vector_exclusive_or: |
75360f19 | 3078 | for (; i < nr_words; i++) |
23e79746 | 3079 | destdata[i] = adata[i] ^ bdata[i]; |
87d86601 PE |
3080 | break; |
3081 | ||
3082 | case bool_vector_union: | |
75360f19 | 3083 | for (; i < nr_words; i++) |
23e79746 | 3084 | destdata[i] = adata[i] | bdata[i]; |
87d86601 | 3085 | break; |
3e0b94e7 | 3086 | |
87d86601 | 3087 | case bool_vector_intersection: |
75360f19 | 3088 | for (; i < nr_words; i++) |
23e79746 | 3089 | destdata[i] = adata[i] & bdata[i]; |
87d86601 | 3090 | break; |
3e0b94e7 | 3091 | |
87d86601 | 3092 | case bool_vector_set_difference: |
75360f19 | 3093 | for (; i < nr_words; i++) |
23e79746 | 3094 | destdata[i] = adata[i] &~ bdata[i]; |
87d86601 | 3095 | break; |
75360f19 PE |
3096 | |
3097 | default: | |
3098 | eassume (0); | |
3e0b94e7 | 3099 | } |
7be68de5 | 3100 | |
87d86601 | 3101 | return dest; |
3e0b94e7 DC |
3102 | } |
3103 | ||
2fcc742f PE |
3104 | /* PRECONDITION must be true. Return VALUE. This odd construction |
3105 | works around a bogus GCC diagnostic "shift count >= width of type". */ | |
3106 | ||
3107 | static int | |
3108 | pre_value (bool precondition, int value) | |
3109 | { | |
3110 | eassume (precondition); | |
3111 | return precondition ? value : 0; | |
3112 | } | |
3113 | ||
3e0b94e7 DC |
3114 | /* Compute the number of trailing zero bits in val. If val is zero, |
3115 | return the number of bits in val. */ | |
595e113b | 3116 | static int |
87c4314d | 3117 | count_trailing_zero_bits (bits_word val) |
3e0b94e7 | 3118 | { |
87c4314d | 3119 | if (BITS_WORD_MAX == UINT_MAX) |
595e113b | 3120 | return count_trailing_zeros (val); |
87c4314d | 3121 | if (BITS_WORD_MAX == ULONG_MAX) |
595e113b | 3122 | return count_trailing_zeros_l (val); |
56a0e352 | 3123 | if (BITS_WORD_MAX == ULL_MAX) |
595e113b | 3124 | return count_trailing_zeros_ll (val); |
595e113b | 3125 | |
87c4314d | 3126 | /* The rest of this code is for the unlikely platform where bits_word differs |
595e113b | 3127 | in width from unsigned int, unsigned long, and unsigned long long. */ |
2cf00efc | 3128 | val |= ~ BITS_WORD_MAX; |
87c4314d | 3129 | if (BITS_WORD_MAX <= UINT_MAX) |
595e113b | 3130 | return count_trailing_zeros (val); |
87c4314d | 3131 | if (BITS_WORD_MAX <= ULONG_MAX) |
595e113b | 3132 | return count_trailing_zeros_l (val); |
2cf00efc PE |
3133 | else |
3134 | { | |
3135 | int count; | |
3136 | for (count = 0; | |
3137 | count < BITS_PER_BITS_WORD - BITS_PER_ULL; | |
3138 | count += BITS_PER_ULL) | |
3139 | { | |
56a0e352 | 3140 | if (val & ULL_MAX) |
2cf00efc PE |
3141 | return count + count_trailing_zeros_ll (val); |
3142 | val = shift_right_ull (val); | |
3143 | } | |
3144 | ||
3145 | if (BITS_PER_BITS_WORD % BITS_PER_ULL != 0 | |
3146 | && BITS_WORD_MAX == (bits_word) -1) | |
2fcc742f PE |
3147 | val |= (bits_word) 1 << pre_value (ULONG_MAX < BITS_WORD_MAX, |
3148 | BITS_PER_BITS_WORD % BITS_PER_ULL); | |
2cf00efc PE |
3149 | return count + count_trailing_zeros_ll (val); |
3150 | } | |
3e0b94e7 DC |
3151 | } |
3152 | ||
87c4314d PE |
3153 | static bits_word |
3154 | bits_word_to_host_endian (bits_word val) | |
3e0b94e7 | 3155 | { |
595e113b PE |
3156 | #ifndef WORDS_BIGENDIAN |
3157 | return val; | |
3e0b94e7 | 3158 | #else |
2cf00efc PE |
3159 | if (BITS_WORD_MAX >> 31 == 1) |
3160 | return bswap_32 (val); | |
3161 | # if HAVE_UNSIGNED_LONG_LONG | |
3162 | if (BITS_WORD_MAX >> 31 >> 31 >> 1 == 1) | |
3163 | return bswap_64 (val); | |
3164 | # endif | |
3165 | { | |
3166 | int i; | |
3167 | bits_word r = 0; | |
3168 | for (i = 0; i < sizeof val; i++) | |
3169 | { | |
3170 | r = ((r << 1 << (CHAR_BIT - 1)) | |
3171 | | (val & ((1u << 1 << (CHAR_BIT - 1)) - 1))); | |
3172 | val = val >> 1 >> (CHAR_BIT - 1); | |
3173 | } | |
3174 | return r; | |
3175 | } | |
3e0b94e7 DC |
3176 | #endif |
3177 | } | |
3178 | ||
3179 | DEFUN ("bool-vector-exclusive-or", Fbool_vector_exclusive_or, | |
3180 | Sbool_vector_exclusive_or, 2, 3, 0, | |
454e2fb9 PE |
3181 | doc: /* Return A ^ B, bitwise exclusive or. |
3182 | If optional third argument C is given, store result into C. | |
3183 | A, B, and C must be bool vectors of the same length. | |
3184 | Return the destination vector if it changed or nil otherwise. */) | |
3e0b94e7 DC |
3185 | (Lisp_Object a, Lisp_Object b, Lisp_Object c) |
3186 | { | |
3187 | return bool_vector_binop_driver (a, b, c, bool_vector_exclusive_or); | |
3188 | } | |
3189 | ||
3190 | DEFUN ("bool-vector-union", Fbool_vector_union, | |
3191 | Sbool_vector_union, 2, 3, 0, | |
454e2fb9 PE |
3192 | doc: /* Return A | B, bitwise or. |
3193 | If optional third argument C is given, store result into C. | |
3194 | A, B, and C must be bool vectors of the same length. | |
3195 | Return the destination vector if it changed or nil otherwise. */) | |
3e0b94e7 DC |
3196 | (Lisp_Object a, Lisp_Object b, Lisp_Object c) |
3197 | { | |
3198 | return bool_vector_binop_driver (a, b, c, bool_vector_union); | |
3199 | } | |
3200 | ||
3201 | DEFUN ("bool-vector-intersection", Fbool_vector_intersection, | |
3202 | Sbool_vector_intersection, 2, 3, 0, | |
454e2fb9 PE |
3203 | doc: /* Return A & B, bitwise and. |
3204 | If optional third argument C is given, store result into C. | |
3205 | A, B, and C must be bool vectors of the same length. | |
3206 | Return the destination vector if it changed or nil otherwise. */) | |
3e0b94e7 DC |
3207 | (Lisp_Object a, Lisp_Object b, Lisp_Object c) |
3208 | { | |
3209 | return bool_vector_binop_driver (a, b, c, bool_vector_intersection); | |
3210 | } | |
3211 | ||
3212 | DEFUN ("bool-vector-set-difference", Fbool_vector_set_difference, | |
3213 | Sbool_vector_set_difference, 2, 3, 0, | |
454e2fb9 PE |
3214 | doc: /* Return A &~ B, set difference. |
3215 | If optional third argument C is given, store result into C. | |
3216 | A, B, and C must be bool vectors of the same length. | |
3217 | Return the destination vector if it changed or nil otherwise. */) | |
3e0b94e7 DC |
3218 | (Lisp_Object a, Lisp_Object b, Lisp_Object c) |
3219 | { | |
3220 | return bool_vector_binop_driver (a, b, c, bool_vector_set_difference); | |
3221 | } | |
3222 | ||
3223 | DEFUN ("bool-vector-subsetp", Fbool_vector_subsetp, | |
3224 | Sbool_vector_subsetp, 2, 2, 0, | |
3f73284a PE |
3225 | doc: /* Return t if every t value in A is also t in B, nil otherwise. |
3226 | A and B must be bool vectors of the same length. */) | |
3e0b94e7 DC |
3227 | (Lisp_Object a, Lisp_Object b) |
3228 | { | |
3f73284a | 3229 | return bool_vector_binop_driver (a, b, b, bool_vector_subsetp); |
3e0b94e7 DC |
3230 | } |
3231 | ||
3232 | DEFUN ("bool-vector-not", Fbool_vector_not, | |
3233 | Sbool_vector_not, 1, 2, 0, | |
454e2fb9 PE |
3234 | doc: /* Compute ~A, set complement. |
3235 | If optional second argument B is given, store result into B. | |
3236 | A and B must be bool vectors of the same length. | |
3e0b94e7 DC |
3237 | Return the destination vector. */) |
3238 | (Lisp_Object a, Lisp_Object b) | |
3239 | { | |
3240 | EMACS_INT nr_bits; | |
87c4314d | 3241 | bits_word *bdata, *adata; |
3e0b94e7 | 3242 | ptrdiff_t i; |
3e0b94e7 DC |
3243 | |
3244 | CHECK_BOOL_VECTOR (a); | |
1c0a7493 | 3245 | nr_bits = bool_vector_size (a); |
3e0b94e7 DC |
3246 | |
3247 | if (NILP (b)) | |
2cf00efc | 3248 | b = make_uninit_bool_vector (nr_bits); |
3e0b94e7 DC |
3249 | else |
3250 | { | |
3251 | CHECK_BOOL_VECTOR (b); | |
454e2fb9 PE |
3252 | if (bool_vector_size (b) != nr_bits) |
3253 | wrong_length_argument (a, b, Qnil); | |
3e0b94e7 DC |
3254 | } |
3255 | ||
df5b4930 PE |
3256 | bdata = bool_vector_data (b); |
3257 | adata = bool_vector_data (a); | |
3e0b94e7 | 3258 | |
87c4314d | 3259 | for (i = 0; i < nr_bits / BITS_PER_BITS_WORD; i++) |
df5b4930 | 3260 | bdata[i] = BITS_WORD_MAX & ~adata[i]; |
3e0b94e7 | 3261 | |
87c4314d | 3262 | if (nr_bits % BITS_PER_BITS_WORD) |
3e0b94e7 | 3263 | { |
df5b4930 | 3264 | bits_word mword = bits_word_to_host_endian (adata[i]); |
3e0b94e7 DC |
3265 | mword = ~mword; |
3266 | mword &= bool_vector_spare_mask (nr_bits); | |
87c4314d | 3267 | bdata[i] = bits_word_to_host_endian (mword); |
3e0b94e7 DC |
3268 | } |
3269 | ||
3270 | return b; | |
3271 | } | |
3272 | ||
ec2c4ee6 PE |
3273 | DEFUN ("bool-vector-count-population", Fbool_vector_count_population, |
3274 | Sbool_vector_count_population, 1, 1, 0, | |
3275 | doc: /* Count how many elements in A are t. | |
3276 | A is a bool vector. To count A's nil elements, subtract the return | |
3277 | value from A's length. */) | |
3278 | (Lisp_Object a) | |
3e0b94e7 | 3279 | { |
f2752e01 | 3280 | EMACS_INT count; |
3e0b94e7 | 3281 | EMACS_INT nr_bits; |
87c4314d | 3282 | bits_word *adata; |
2cf00efc | 3283 | ptrdiff_t i, nwords; |
3e0b94e7 DC |
3284 | |
3285 | CHECK_BOOL_VECTOR (a); | |
3286 | ||
1c0a7493 | 3287 | nr_bits = bool_vector_size (a); |
2cf00efc | 3288 | nwords = bool_vector_words (nr_bits); |
3e0b94e7 | 3289 | count = 0; |
df5b4930 | 3290 | adata = bool_vector_data (a); |
3e0b94e7 | 3291 | |
2cf00efc PE |
3292 | for (i = 0; i < nwords; i++) |
3293 | count += count_one_bits_word (adata[i]); | |
3e0b94e7 DC |
3294 | |
3295 | return make_number (count); | |
3296 | } | |
3297 | ||
ec2c4ee6 PE |
3298 | DEFUN ("bool-vector-count-consecutive", Fbool_vector_count_consecutive, |
3299 | Sbool_vector_count_consecutive, 3, 3, 0, | |
3300 | doc: /* Count how many consecutive elements in A equal B starting at I. | |
3301 | A is a bool vector, B is t or nil, and I is an index into A. */) | |
3e0b94e7 DC |
3302 | (Lisp_Object a, Lisp_Object b, Lisp_Object i) |
3303 | { | |
f2752e01 | 3304 | EMACS_INT count; |
3e0b94e7 | 3305 | EMACS_INT nr_bits; |
f2752e01 | 3306 | int offset; |
87c4314d PE |
3307 | bits_word *adata; |
3308 | bits_word twiddle; | |
3309 | bits_word mword; /* Machine word. */ | |
2cf00efc | 3310 | ptrdiff_t pos, pos0; |
3e0b94e7 DC |
3311 | ptrdiff_t nr_words; |
3312 | ||
3313 | CHECK_BOOL_VECTOR (a); | |
3314 | CHECK_NATNUM (i); | |
3315 | ||
1c0a7493 | 3316 | nr_bits = bool_vector_size (a); |
3e0b94e7 DC |
3317 | if (XFASTINT (i) > nr_bits) /* Allow one past the end for convenience */ |
3318 | args_out_of_range (a, i); | |
3319 | ||
df5b4930 PE |
3320 | adata = bool_vector_data (a); |
3321 | nr_words = bool_vector_words (nr_bits); | |
87c4314d PE |
3322 | pos = XFASTINT (i) / BITS_PER_BITS_WORD; |
3323 | offset = XFASTINT (i) % BITS_PER_BITS_WORD; | |
3e0b94e7 DC |
3324 | count = 0; |
3325 | ||
3326 | /* By XORing with twiddle, we transform the problem of "count | |
3327 | consecutive equal values" into "count the zero bits". The latter | |
3328 | operation usually has hardware support. */ | |
df5b4930 | 3329 | twiddle = NILP (b) ? 0 : BITS_WORD_MAX; |
3e0b94e7 DC |
3330 | |
3331 | /* Scan the remainder of the mword at the current offset. */ | |
3332 | if (pos < nr_words && offset != 0) | |
3333 | { | |
87c4314d | 3334 | mword = bits_word_to_host_endian (adata[pos]); |
3e0b94e7 DC |
3335 | mword ^= twiddle; |
3336 | mword >>= offset; | |
87d86601 PE |
3337 | |
3338 | /* Do not count the pad bits. */ | |
2cf00efc | 3339 | mword |= (bits_word) 1 << (BITS_PER_BITS_WORD - offset); |
87d86601 | 3340 | |
3e0b94e7 | 3341 | count = count_trailing_zero_bits (mword); |
7be68de5 | 3342 | pos++; |
87c4314d | 3343 | if (count + offset < BITS_PER_BITS_WORD) |
3e0b94e7 DC |
3344 | return make_number (count); |
3345 | } | |
3346 | ||
3347 | /* Scan whole words until we either reach the end of the vector or | |
3348 | find an mword that doesn't completely match. twiddle is | |
3349 | endian-independent. */ | |
2cf00efc | 3350 | pos0 = pos; |
3e0b94e7 | 3351 | while (pos < nr_words && adata[pos] == twiddle) |
2cf00efc PE |
3352 | pos++; |
3353 | count += (pos - pos0) * BITS_PER_BITS_WORD; | |
3e0b94e7 DC |
3354 | |
3355 | if (pos < nr_words) | |
3356 | { | |
3357 | /* If we stopped because of a mismatch, see how many bits match | |
3358 | in the current mword. */ | |
87c4314d | 3359 | mword = bits_word_to_host_endian (adata[pos]); |
3e0b94e7 DC |
3360 | mword ^= twiddle; |
3361 | count += count_trailing_zero_bits (mword); | |
3362 | } | |
87c4314d | 3363 | else if (nr_bits % BITS_PER_BITS_WORD != 0) |
3e0b94e7 DC |
3364 | { |
3365 | /* If we hit the end, we might have overshot our count. Reduce | |
3366 | the total by the number of spare bits at the end of the | |
3367 | vector. */ | |
87c4314d | 3368 | count -= BITS_PER_BITS_WORD - nr_bits % BITS_PER_BITS_WORD; |
3e0b94e7 DC |
3369 | } |
3370 | ||
3371 | return make_number (count); | |
3372 | } | |
6b61353c | 3373 | |
7921925c JB |
3374 | \f |
3375 | void | |
971de7fb | 3376 | syms_of_data (void) |
7921925c | 3377 | { |
6315e761 RS |
3378 | Lisp_Object error_tail, arith_tail; |
3379 | ||
fe6aa7a1 BT |
3380 | #include "data.x" |
3381 | ||
620c53a6 SM |
3382 | DEFSYM (Qquote, "quote"); |
3383 | DEFSYM (Qlambda, "lambda"); | |
3384 | DEFSYM (Qsubr, "subr"); | |
3385 | DEFSYM (Qerror_conditions, "error-conditions"); | |
3386 | DEFSYM (Qerror_message, "error-message"); | |
3387 | DEFSYM (Qtop_level, "top-level"); | |
3388 | ||
3389 | DEFSYM (Qerror, "error"); | |
71873e2b | 3390 | DEFSYM (Quser_error, "user-error"); |
620c53a6 | 3391 | DEFSYM (Qquit, "quit"); |
454e2fb9 | 3392 | DEFSYM (Qwrong_length_argument, "wrong-length-argument"); |
620c53a6 SM |
3393 | DEFSYM (Qwrong_type_argument, "wrong-type-argument"); |
3394 | DEFSYM (Qargs_out_of_range, "args-out-of-range"); | |
3395 | DEFSYM (Qvoid_function, "void-function"); | |
3396 | DEFSYM (Qcyclic_function_indirection, "cyclic-function-indirection"); | |
3397 | DEFSYM (Qcyclic_variable_indirection, "cyclic-variable-indirection"); | |
3398 | DEFSYM (Qvoid_variable, "void-variable"); | |
3399 | DEFSYM (Qsetting_constant, "setting-constant"); | |
3400 | DEFSYM (Qinvalid_read_syntax, "invalid-read-syntax"); | |
3401 | ||
3402 | DEFSYM (Qinvalid_function, "invalid-function"); | |
3403 | DEFSYM (Qwrong_number_of_arguments, "wrong-number-of-arguments"); | |
3404 | DEFSYM (Qno_catch, "no-catch"); | |
3405 | DEFSYM (Qend_of_file, "end-of-file"); | |
3406 | DEFSYM (Qarith_error, "arith-error"); | |
3407 | DEFSYM (Qbeginning_of_buffer, "beginning-of-buffer"); | |
3408 | DEFSYM (Qend_of_buffer, "end-of-buffer"); | |
3409 | DEFSYM (Qbuffer_read_only, "buffer-read-only"); | |
3410 | DEFSYM (Qtext_read_only, "text-read-only"); | |
3411 | DEFSYM (Qmark_inactive, "mark-inactive"); | |
3412 | ||
3413 | DEFSYM (Qlistp, "listp"); | |
3414 | DEFSYM (Qconsp, "consp"); | |
3415 | DEFSYM (Qsymbolp, "symbolp"); | |
3416 | DEFSYM (Qkeywordp, "keywordp"); | |
3417 | DEFSYM (Qintegerp, "integerp"); | |
3418 | DEFSYM (Qnatnump, "natnump"); | |
3419 | DEFSYM (Qwholenump, "wholenump"); | |
3420 | DEFSYM (Qstringp, "stringp"); | |
3421 | DEFSYM (Qarrayp, "arrayp"); | |
3422 | DEFSYM (Qsequencep, "sequencep"); | |
3423 | DEFSYM (Qbufferp, "bufferp"); | |
3424 | DEFSYM (Qvectorp, "vectorp"); | |
3e0b94e7 | 3425 | DEFSYM (Qbool_vector_p, "bool-vector-p"); |
620c53a6 SM |
3426 | DEFSYM (Qchar_or_string_p, "char-or-string-p"); |
3427 | DEFSYM (Qmarkerp, "markerp"); | |
3428 | DEFSYM (Qbuffer_or_string_p, "buffer-or-string-p"); | |
3429 | DEFSYM (Qinteger_or_marker_p, "integer-or-marker-p"); | |
3430 | DEFSYM (Qboundp, "boundp"); | |
3431 | DEFSYM (Qfboundp, "fboundp"); | |
3432 | ||
3433 | DEFSYM (Qfloatp, "floatp"); | |
3434 | DEFSYM (Qnumberp, "numberp"); | |
3435 | DEFSYM (Qnumber_or_marker_p, "number-or-marker-p"); | |
3436 | ||
3437 | DEFSYM (Qchar_table_p, "char-table-p"); | |
3438 | DEFSYM (Qvector_or_char_table_p, "vector-or-char-table-p"); | |
3439 | ||
3440 | DEFSYM (Qsubrp, "subrp"); | |
3441 | DEFSYM (Qunevalled, "unevalled"); | |
3442 | DEFSYM (Qmany, "many"); | |
3443 | ||
3444 | DEFSYM (Qcdr, "cdr"); | |
3445 | ||
3446 | /* Handle automatic advice activation. */ | |
3447 | DEFSYM (Qad_advice_info, "ad-advice-info"); | |
3448 | DEFSYM (Qad_activate_internal, "ad-activate-internal"); | |
f845f2c9 | 3449 | |
d67b4f80 | 3450 | error_tail = pure_cons (Qerror, Qnil); |
6315e761 | 3451 | |
620c53a6 SM |
3452 | /* ERROR is used as a signaler for random errors for which nothing else is |
3453 | right. */ | |
7921925c JB |
3454 | |
3455 | Fput (Qerror, Qerror_conditions, | |
6315e761 | 3456 | error_tail); |
7921925c | 3457 | Fput (Qerror, Qerror_message, |
2a0213a6 | 3458 | build_pure_c_string ("error")); |
7921925c | 3459 | |
71873e2b SM |
3460 | #define PUT_ERROR(sym, tail, msg) \ |
3461 | Fput (sym, Qerror_conditions, pure_cons (sym, tail)); \ | |
2a0213a6 | 3462 | Fput (sym, Qerror_message, build_pure_c_string (msg)) |
71873e2b SM |
3463 | |
3464 | PUT_ERROR (Qquit, Qnil, "Quit"); | |
3465 | ||
3466 | PUT_ERROR (Quser_error, error_tail, ""); | |
454e2fb9 | 3467 | PUT_ERROR (Qwrong_length_argument, error_tail, "Wrong length argument"); |
71873e2b SM |
3468 | PUT_ERROR (Qwrong_type_argument, error_tail, "Wrong type argument"); |
3469 | PUT_ERROR (Qargs_out_of_range, error_tail, "Args out of range"); | |
3470 | PUT_ERROR (Qvoid_function, error_tail, | |
3471 | "Symbol's function definition is void"); | |
3472 | PUT_ERROR (Qcyclic_function_indirection, error_tail, | |
3473 | "Symbol's chain of function indirections contains a loop"); | |
3474 | PUT_ERROR (Qcyclic_variable_indirection, error_tail, | |
3475 | "Symbol's chain of variable indirections contains a loop"); | |
620c53a6 | 3476 | DEFSYM (Qcircular_list, "circular-list"); |
71873e2b SM |
3477 | PUT_ERROR (Qcircular_list, error_tail, "List contains a loop"); |
3478 | PUT_ERROR (Qvoid_variable, error_tail, "Symbol's value as variable is void"); | |
3479 | PUT_ERROR (Qsetting_constant, error_tail, | |
3480 | "Attempt to set a constant symbol"); | |
3481 | PUT_ERROR (Qinvalid_read_syntax, error_tail, "Invalid read syntax"); | |
3482 | PUT_ERROR (Qinvalid_function, error_tail, "Invalid function"); | |
3483 | PUT_ERROR (Qwrong_number_of_arguments, error_tail, | |
3484 | "Wrong number of arguments"); | |
3485 | PUT_ERROR (Qno_catch, error_tail, "No catch for tag"); | |
3486 | PUT_ERROR (Qend_of_file, error_tail, "End of file during parsing"); | |
7921925c | 3487 | |
d67b4f80 | 3488 | arith_tail = pure_cons (Qarith_error, error_tail); |
71873e2b | 3489 | Fput (Qarith_error, Qerror_conditions, arith_tail); |
2a0213a6 | 3490 | Fput (Qarith_error, Qerror_message, build_pure_c_string ("Arithmetic error")); |
71873e2b SM |
3491 | |
3492 | PUT_ERROR (Qbeginning_of_buffer, error_tail, "Beginning of buffer"); | |
3493 | PUT_ERROR (Qend_of_buffer, error_tail, "End of buffer"); | |
3494 | PUT_ERROR (Qbuffer_read_only, error_tail, "Buffer is read-only"); | |
3495 | PUT_ERROR (Qtext_read_only, pure_cons (Qbuffer_read_only, error_tail), | |
3496 | "Text is read-only"); | |
8f9f49d7 | 3497 | |
620c53a6 SM |
3498 | DEFSYM (Qrange_error, "range-error"); |
3499 | DEFSYM (Qdomain_error, "domain-error"); | |
3500 | DEFSYM (Qsingularity_error, "singularity-error"); | |
3501 | DEFSYM (Qoverflow_error, "overflow-error"); | |
3502 | DEFSYM (Qunderflow_error, "underflow-error"); | |
6315e761 | 3503 | |
71873e2b SM |
3504 | PUT_ERROR (Qdomain_error, arith_tail, "Arithmetic domain error"); |
3505 | ||
3506 | PUT_ERROR (Qrange_error, arith_tail, "Arithmetic range error"); | |
3507 | ||
3508 | PUT_ERROR (Qsingularity_error, Fcons (Qdomain_error, arith_tail), | |
3509 | "Arithmetic singularity error"); | |
3510 | ||
3511 | PUT_ERROR (Qoverflow_error, Fcons (Qdomain_error, arith_tail), | |
3512 | "Arithmetic overflow error"); | |
3513 | PUT_ERROR (Qunderflow_error, Fcons (Qdomain_error, arith_tail), | |
3514 | "Arithmetic underflow error"); | |
6315e761 | 3515 | |
7921925c JB |
3516 | staticpro (&Qnil); |
3517 | staticpro (&Qt); | |
7921925c | 3518 | staticpro (&Qunbound); |
7921925c | 3519 | |
39bcc759 | 3520 | /* Types that type-of returns. */ |
620c53a6 SM |
3521 | DEFSYM (Qinteger, "integer"); |
3522 | DEFSYM (Qsymbol, "symbol"); | |
3523 | DEFSYM (Qstring, "string"); | |
3524 | DEFSYM (Qcons, "cons"); | |
3525 | DEFSYM (Qmarker, "marker"); | |
3526 | DEFSYM (Qoverlay, "overlay"); | |
3527 | DEFSYM (Qfloat, "float"); | |
3528 | DEFSYM (Qwindow_configuration, "window-configuration"); | |
3529 | DEFSYM (Qprocess, "process"); | |
3530 | DEFSYM (Qwindow, "window"); | |
620c53a6 SM |
3531 | DEFSYM (Qcompiled_function, "compiled-function"); |
3532 | DEFSYM (Qbuffer, "buffer"); | |
3533 | DEFSYM (Qframe, "frame"); | |
3534 | DEFSYM (Qvector, "vector"); | |
3535 | DEFSYM (Qchar_table, "char-table"); | |
3536 | DEFSYM (Qbool_vector, "bool-vector"); | |
3537 | DEFSYM (Qhash_table, "hash-table"); | |
3ab6e069 | 3538 | DEFSYM (Qmisc, "misc"); |
39bcc759 | 3539 | |
61b108cc SM |
3540 | DEFSYM (Qdefun, "defun"); |
3541 | ||
4e6f2626 CY |
3542 | DEFSYM (Qfont_spec, "font-spec"); |
3543 | DEFSYM (Qfont_entity, "font-entity"); | |
3544 | DEFSYM (Qfont_object, "font-object"); | |
3545 | ||
3860280a | 3546 | DEFSYM (Qinteractive_form, "interactive-form"); |
32e5c58c | 3547 | DEFSYM (Qdefalias_fset_function, "defalias-fset-function"); |
3860280a | 3548 | |
c644523b | 3549 | set_symbol_function (Qwholenump, XSYMBOL (Qnatnump)->function); |
e6190b11 | 3550 | |
29208e82 | 3551 | DEFVAR_LISP ("most-positive-fixnum", Vmost_positive_fixnum, |
9d113d9d AS |
3552 | doc: /* The largest value that is representable in a Lisp integer. */); |
3553 | Vmost_positive_fixnum = make_number (MOST_POSITIVE_FIXNUM); | |
d67b4f80 | 3554 | XSYMBOL (intern_c_string ("most-positive-fixnum"))->constant = 1; |
bfb96cb7 | 3555 | |
29208e82 | 3556 | DEFVAR_LISP ("most-negative-fixnum", Vmost_negative_fixnum, |
9d113d9d AS |
3557 | doc: /* The smallest value that is representable in a Lisp integer. */); |
3558 | Vmost_negative_fixnum = make_number (MOST_NEGATIVE_FIXNUM); | |
d67b4f80 | 3559 | XSYMBOL (intern_c_string ("most-negative-fixnum"))->constant = 1; |
7921925c | 3560 | } |