Commit | Line | Data |
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7921925c | 1 | /* Primitive operations on Lisp data types for GNU Emacs Lisp interpreter. |
4a2f9c6a | 2 | Copyright (C) 1985,86,88,93,94,95,97, 1998 Free Software Foundation, Inc. |
7921925c JB |
3 | |
4 | This file is part of GNU Emacs. | |
5 | ||
6 | GNU Emacs is free software; you can redistribute it and/or modify | |
7 | it under the terms of the GNU General Public License as published by | |
7c938215 | 8 | the Free Software Foundation; either version 2, or (at your option) |
7921925c JB |
9 | any later version. |
10 | ||
11 | GNU Emacs is distributed in the hope that it will be useful, | |
12 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | GNU General Public License for more details. | |
15 | ||
16 | You should have received a copy of the GNU General Public License | |
17 | along with GNU Emacs; see the file COPYING. If not, write to | |
3b7ad313 EN |
18 | the Free Software Foundation, Inc., 59 Temple Place - Suite 330, |
19 | Boston, MA 02111-1307, USA. */ | |
7921925c JB |
20 | |
21 | ||
22 | #include <signal.h> | |
23 | ||
18160b98 | 24 | #include <config.h> |
7921925c | 25 | #include "lisp.h" |
29eab336 | 26 | #include "puresize.h" |
8313c4e7 | 27 | #include "charset.h" |
7921925c JB |
28 | |
29 | #ifndef standalone | |
30 | #include "buffer.h" | |
077d751f | 31 | #include "keyboard.h" |
7921925c JB |
32 | #endif |
33 | ||
a44804c2 | 34 | #include "syssignal.h" |
fb8e9847 | 35 | |
7921925c | 36 | #ifdef LISP_FLOAT_TYPE |
defa77b5 | 37 | |
93b91208 JB |
38 | #ifdef STDC_HEADERS |
39 | #include <stdlib.h> | |
2f261542 | 40 | #include <float.h> |
93b91208 | 41 | #endif |
defa77b5 | 42 | |
ad8d56b9 PE |
43 | /* If IEEE_FLOATING_POINT isn't defined, default it from FLT_*. */ |
44 | #ifndef IEEE_FLOATING_POINT | |
45 | #if (FLT_RADIX == 2 && FLT_MANT_DIG == 24 \ | |
46 | && FLT_MIN_EXP == -125 && FLT_MAX_EXP == 128) | |
47 | #define IEEE_FLOATING_POINT 1 | |
48 | #else | |
49 | #define IEEE_FLOATING_POINT 0 | |
50 | #endif | |
51 | #endif | |
52 | ||
defa77b5 RS |
53 | /* Work around a problem that happens because math.h on hpux 7 |
54 | defines two static variables--which, in Emacs, are not really static, | |
55 | because `static' is defined as nothing. The problem is that they are | |
56 | here, in floatfns.c, and in lread.c. | |
57 | These macros prevent the name conflict. */ | |
58 | #if defined (HPUX) && !defined (HPUX8) | |
59 | #define _MAXLDBL data_c_maxldbl | |
60 | #define _NMAXLDBL data_c_nmaxldbl | |
61 | #endif | |
62 | ||
7921925c JB |
63 | #include <math.h> |
64 | #endif /* LISP_FLOAT_TYPE */ | |
65 | ||
024ec58f BF |
66 | #if !defined (atof) |
67 | extern double atof (); | |
68 | #endif /* !atof */ | |
69 | ||
7921925c JB |
70 | Lisp_Object Qnil, Qt, Qquote, Qlambda, Qsubr, Qunbound; |
71 | Lisp_Object Qerror_conditions, Qerror_message, Qtop_level; | |
72 | Lisp_Object Qerror, Qquit, Qwrong_type_argument, Qargs_out_of_range; | |
ffd56f97 | 73 | Lisp_Object Qvoid_variable, Qvoid_function, Qcyclic_function_indirection; |
7921925c JB |
74 | Lisp_Object Qsetting_constant, Qinvalid_read_syntax; |
75 | Lisp_Object Qinvalid_function, Qwrong_number_of_arguments, Qno_catch; | |
3b8819d6 | 76 | Lisp_Object Qend_of_file, Qarith_error, Qmark_inactive; |
7921925c | 77 | Lisp_Object Qbeginning_of_buffer, Qend_of_buffer, Qbuffer_read_only; |
8e86942b | 78 | Lisp_Object Qintegerp, Qnatnump, Qwholenump, Qsymbolp, Qlistp, Qconsp; |
7921925c JB |
79 | Lisp_Object Qstringp, Qarrayp, Qsequencep, Qbufferp; |
80 | Lisp_Object Qchar_or_string_p, Qmarkerp, Qinteger_or_marker_p, Qvectorp; | |
07bd8472 | 81 | Lisp_Object Qbuffer_or_string_p; |
7921925c | 82 | Lisp_Object Qboundp, Qfboundp; |
7f0edce7 | 83 | Lisp_Object Qchar_table_p, Qvector_or_char_table_p; |
39bcc759 | 84 | |
7921925c | 85 | Lisp_Object Qcdr; |
ab297811 | 86 | Lisp_Object Qad_advice_info, Qad_activate; |
7921925c | 87 | |
6315e761 RS |
88 | Lisp_Object Qrange_error, Qdomain_error, Qsingularity_error; |
89 | Lisp_Object Qoverflow_error, Qunderflow_error; | |
90 | ||
7921925c | 91 | #ifdef LISP_FLOAT_TYPE |
464f8898 | 92 | Lisp_Object Qfloatp; |
7921925c JB |
93 | Lisp_Object Qnumberp, Qnumber_or_marker_p; |
94 | #endif | |
95 | ||
39bcc759 | 96 | static Lisp_Object Qinteger, Qsymbol, Qstring, Qcons, Qmarker, Qoverlay; |
8313c4e7 KH |
97 | static Lisp_Object Qfloat, Qwindow_configuration, Qwindow; |
98 | Lisp_Object Qprocess; | |
39bcc759 | 99 | static Lisp_Object Qcompiled_function, Qbuffer, Qframe, Qvector; |
fc67d5be | 100 | static Lisp_Object Qchar_table, Qbool_vector; |
39bcc759 | 101 | |
7921925c JB |
102 | static Lisp_Object swap_in_symval_forwarding (); |
103 | ||
d02eeab3 KH |
104 | Lisp_Object set_internal (); |
105 | ||
7921925c JB |
106 | Lisp_Object |
107 | wrong_type_argument (predicate, value) | |
108 | register Lisp_Object predicate, value; | |
109 | { | |
110 | register Lisp_Object tem; | |
111 | do | |
112 | { | |
113 | if (!EQ (Vmocklisp_arguments, Qt)) | |
114 | { | |
e9ebc175 | 115 | if (STRINGP (value) && |
7921925c | 116 | (EQ (predicate, Qintegerp) || EQ (predicate, Qinteger_or_marker_p))) |
3883fbeb | 117 | return Fstring_to_number (value, Qnil); |
e9ebc175 | 118 | if (INTEGERP (value) && EQ (predicate, Qstringp)) |
f2980264 | 119 | return Fnumber_to_string (value); |
7921925c | 120 | } |
e1351ff7 RS |
121 | |
122 | /* If VALUE is not even a valid Lisp object, abort here | |
123 | where we can get a backtrace showing where it came from. */ | |
04be3993 | 124 | if ((unsigned int) XGCTYPE (value) >= Lisp_Type_Limit) |
e1351ff7 RS |
125 | abort (); |
126 | ||
7921925c JB |
127 | value = Fsignal (Qwrong_type_argument, Fcons (predicate, Fcons (value, Qnil))); |
128 | tem = call1 (predicate, value); | |
129 | } | |
a33ef3ab | 130 | while (NILP (tem)); |
7921925c JB |
131 | return value; |
132 | } | |
133 | ||
134 | pure_write_error () | |
135 | { | |
136 | error ("Attempt to modify read-only object"); | |
137 | } | |
138 | ||
139 | void | |
140 | args_out_of_range (a1, a2) | |
141 | Lisp_Object a1, a2; | |
142 | { | |
143 | while (1) | |
144 | Fsignal (Qargs_out_of_range, Fcons (a1, Fcons (a2, Qnil))); | |
145 | } | |
146 | ||
147 | void | |
148 | args_out_of_range_3 (a1, a2, a3) | |
149 | Lisp_Object a1, a2, a3; | |
150 | { | |
151 | while (1) | |
152 | Fsignal (Qargs_out_of_range, Fcons (a1, Fcons (a2, Fcons (a3, Qnil)))); | |
153 | } | |
154 | ||
7921925c JB |
155 | /* On some machines, XINT needs a temporary location. |
156 | Here it is, in case it is needed. */ | |
157 | ||
158 | int sign_extend_temp; | |
159 | ||
160 | /* On a few machines, XINT can only be done by calling this. */ | |
161 | ||
162 | int | |
163 | sign_extend_lisp_int (num) | |
a0ed95ea | 164 | EMACS_INT num; |
7921925c | 165 | { |
a0ed95ea RS |
166 | if (num & (((EMACS_INT) 1) << (VALBITS - 1))) |
167 | return num | (((EMACS_INT) (-1)) << VALBITS); | |
7921925c | 168 | else |
a0ed95ea | 169 | return num & ((((EMACS_INT) 1) << VALBITS) - 1); |
7921925c JB |
170 | } |
171 | \f | |
172 | /* Data type predicates */ | |
173 | ||
174 | DEFUN ("eq", Feq, Seq, 2, 2, 0, | |
c2124165 | 175 | "Return t if the two args are the same Lisp object.") |
7921925c JB |
176 | (obj1, obj2) |
177 | Lisp_Object obj1, obj2; | |
178 | { | |
179 | if (EQ (obj1, obj2)) | |
180 | return Qt; | |
181 | return Qnil; | |
182 | } | |
183 | ||
c2124165 | 184 | DEFUN ("null", Fnull, Snull, 1, 1, 0, "Return t if OBJECT is nil.") |
39bcc759 RS |
185 | (object) |
186 | Lisp_Object object; | |
7921925c | 187 | { |
39bcc759 | 188 | if (NILP (object)) |
7921925c JB |
189 | return Qt; |
190 | return Qnil; | |
191 | } | |
192 | ||
39bcc759 RS |
193 | DEFUN ("type-of", Ftype_of, Stype_of, 1, 1, 0, |
194 | "Return a symbol representing the type of OBJECT.\n\ | |
195 | The symbol returned names the object's basic type;\n\ | |
196 | for example, (type-of 1) returns `integer'.") | |
197 | (object) | |
198 | Lisp_Object object; | |
199 | { | |
200 | switch (XGCTYPE (object)) | |
201 | { | |
202 | case Lisp_Int: | |
203 | return Qinteger; | |
204 | ||
205 | case Lisp_Symbol: | |
206 | return Qsymbol; | |
207 | ||
208 | case Lisp_String: | |
209 | return Qstring; | |
210 | ||
211 | case Lisp_Cons: | |
212 | return Qcons; | |
213 | ||
214 | case Lisp_Misc: | |
324a6eef | 215 | switch (XMISCTYPE (object)) |
39bcc759 RS |
216 | { |
217 | case Lisp_Misc_Marker: | |
218 | return Qmarker; | |
219 | case Lisp_Misc_Overlay: | |
220 | return Qoverlay; | |
221 | case Lisp_Misc_Float: | |
222 | return Qfloat; | |
223 | } | |
224 | abort (); | |
225 | ||
226 | case Lisp_Vectorlike: | |
227 | if (GC_WINDOW_CONFIGURATIONP (object)) | |
228 | return Qwindow_configuration; | |
229 | if (GC_PROCESSP (object)) | |
230 | return Qprocess; | |
231 | if (GC_WINDOWP (object)) | |
232 | return Qwindow; | |
233 | if (GC_SUBRP (object)) | |
234 | return Qsubr; | |
235 | if (GC_COMPILEDP (object)) | |
236 | return Qcompiled_function; | |
237 | if (GC_BUFFERP (object)) | |
238 | return Qbuffer; | |
fc67d5be KH |
239 | if (GC_CHAR_TABLE_P (object)) |
240 | return Qchar_table; | |
241 | if (GC_BOOL_VECTOR_P (object)) | |
242 | return Qbool_vector; | |
39bcc759 RS |
243 | if (GC_FRAMEP (object)) |
244 | return Qframe; | |
39bcc759 RS |
245 | return Qvector; |
246 | ||
247 | #ifdef LISP_FLOAT_TYPE | |
248 | case Lisp_Float: | |
249 | return Qfloat; | |
250 | #endif | |
251 | ||
252 | default: | |
253 | abort (); | |
254 | } | |
255 | } | |
256 | ||
c2124165 | 257 | DEFUN ("consp", Fconsp, Sconsp, 1, 1, 0, "Return t if OBJECT is a cons cell.") |
39bcc759 RS |
258 | (object) |
259 | Lisp_Object object; | |
7921925c | 260 | { |
39bcc759 | 261 | if (CONSP (object)) |
7921925c JB |
262 | return Qt; |
263 | return Qnil; | |
264 | } | |
265 | ||
25638b07 RS |
266 | DEFUN ("atom", Fatom, Satom, 1, 1, 0, |
267 | "Return t if OBJECT is not a cons cell. This includes nil.") | |
39bcc759 RS |
268 | (object) |
269 | Lisp_Object object; | |
7921925c | 270 | { |
39bcc759 | 271 | if (CONSP (object)) |
7921925c JB |
272 | return Qnil; |
273 | return Qt; | |
274 | } | |
275 | ||
25638b07 RS |
276 | DEFUN ("listp", Flistp, Slistp, 1, 1, 0, |
277 | "Return t if OBJECT is a list. This includes nil.") | |
39bcc759 RS |
278 | (object) |
279 | Lisp_Object object; | |
7921925c | 280 | { |
39bcc759 | 281 | if (CONSP (object) || NILP (object)) |
7921925c JB |
282 | return Qt; |
283 | return Qnil; | |
284 | } | |
285 | ||
25638b07 RS |
286 | DEFUN ("nlistp", Fnlistp, Snlistp, 1, 1, 0, |
287 | "Return t if OBJECT is not a list. Lists include nil.") | |
39bcc759 RS |
288 | (object) |
289 | Lisp_Object object; | |
7921925c | 290 | { |
39bcc759 | 291 | if (CONSP (object) || NILP (object)) |
7921925c JB |
292 | return Qnil; |
293 | return Qt; | |
294 | } | |
295 | \f | |
25638b07 RS |
296 | DEFUN ("symbolp", Fsymbolp, Ssymbolp, 1, 1, 0, |
297 | "Return t if OBJECT is a symbol.") | |
39bcc759 RS |
298 | (object) |
299 | Lisp_Object object; | |
7921925c | 300 | { |
39bcc759 | 301 | if (SYMBOLP (object)) |
7921925c JB |
302 | return Qt; |
303 | return Qnil; | |
304 | } | |
305 | ||
25638b07 RS |
306 | DEFUN ("vectorp", Fvectorp, Svectorp, 1, 1, 0, |
307 | "Return t if OBJECT is a vector.") | |
39bcc759 RS |
308 | (object) |
309 | Lisp_Object object; | |
7921925c | 310 | { |
39bcc759 | 311 | if (VECTORP (object)) |
7921925c JB |
312 | return Qt; |
313 | return Qnil; | |
314 | } | |
315 | ||
25638b07 RS |
316 | DEFUN ("stringp", Fstringp, Sstringp, 1, 1, 0, |
317 | "Return t if OBJECT is a string.") | |
39bcc759 RS |
318 | (object) |
319 | Lisp_Object object; | |
7921925c | 320 | { |
39bcc759 | 321 | if (STRINGP (object)) |
7921925c JB |
322 | return Qt; |
323 | return Qnil; | |
324 | } | |
325 | ||
25638b07 RS |
326 | DEFUN ("multibyte-string-p", Fmultibyte_string_p, Smultibyte_string_p, |
327 | 1, 1, 0, "Return t if OBJECT is a multibyte string.") | |
328 | (object) | |
329 | Lisp_Object object; | |
330 | { | |
331 | if (STRINGP (object) && STRING_MULTIBYTE (object)) | |
332 | return Qt; | |
333 | return Qnil; | |
334 | } | |
335 | ||
336 | DEFUN ("char-table-p", Fchar_table_p, Schar_table_p, 1, 1, 0, | |
337 | "Return t if OBJECT is a char-table.") | |
4d276982 RS |
338 | (object) |
339 | Lisp_Object object; | |
340 | { | |
341 | if (CHAR_TABLE_P (object)) | |
342 | return Qt; | |
343 | return Qnil; | |
344 | } | |
345 | ||
7f0edce7 RS |
346 | DEFUN ("vector-or-char-table-p", Fvector_or_char_table_p, |
347 | Svector_or_char_table_p, 1, 1, 0, | |
c2124165 | 348 | "Return t if OBJECT is a char-table or vector.") |
7f0edce7 RS |
349 | (object) |
350 | Lisp_Object object; | |
351 | { | |
352 | if (VECTORP (object) || CHAR_TABLE_P (object)) | |
353 | return Qt; | |
354 | return Qnil; | |
355 | } | |
356 | ||
c2124165 | 357 | DEFUN ("bool-vector-p", Fbool_vector_p, Sbool_vector_p, 1, 1, 0, "Return t if OBJECT is a bool-vector.") |
4d276982 RS |
358 | (object) |
359 | Lisp_Object object; | |
360 | { | |
361 | if (BOOL_VECTOR_P (object)) | |
362 | return Qt; | |
363 | return Qnil; | |
364 | } | |
365 | ||
c2124165 | 366 | DEFUN ("arrayp", Farrayp, Sarrayp, 1, 1, 0, "Return t if OBJECT is an array (string or vector).") |
39bcc759 RS |
367 | (object) |
368 | Lisp_Object object; | |
7921925c | 369 | { |
a9729926 RS |
370 | if (VECTORP (object) || STRINGP (object) |
371 | || CHAR_TABLE_P (object) || BOOL_VECTOR_P (object)) | |
7921925c JB |
372 | return Qt; |
373 | return Qnil; | |
374 | } | |
375 | ||
376 | DEFUN ("sequencep", Fsequencep, Ssequencep, 1, 1, 0, | |
c2124165 | 377 | "Return t if OBJECT is a sequence (list or array).") |
39bcc759 RS |
378 | (object) |
379 | register Lisp_Object object; | |
7921925c | 380 | { |
4d276982 RS |
381 | if (CONSP (object) || NILP (object) || VECTORP (object) || STRINGP (object) |
382 | || CHAR_TABLE_P (object) || BOOL_VECTOR_P (object)) | |
7921925c JB |
383 | return Qt; |
384 | return Qnil; | |
385 | } | |
386 | ||
c2124165 | 387 | DEFUN ("bufferp", Fbufferp, Sbufferp, 1, 1, 0, "Return t if OBJECT is an editor buffer.") |
39bcc759 RS |
388 | (object) |
389 | Lisp_Object object; | |
7921925c | 390 | { |
39bcc759 | 391 | if (BUFFERP (object)) |
7921925c JB |
392 | return Qt; |
393 | return Qnil; | |
394 | } | |
395 | ||
c2124165 | 396 | DEFUN ("markerp", Fmarkerp, Smarkerp, 1, 1, 0, "Return t if OBJECT is a marker (editor pointer).") |
39bcc759 RS |
397 | (object) |
398 | Lisp_Object object; | |
7921925c | 399 | { |
39bcc759 | 400 | if (MARKERP (object)) |
7921925c JB |
401 | return Qt; |
402 | return Qnil; | |
403 | } | |
404 | ||
c2124165 | 405 | DEFUN ("subrp", Fsubrp, Ssubrp, 1, 1, 0, "Return t if OBJECT is a built-in function.") |
39bcc759 RS |
406 | (object) |
407 | Lisp_Object object; | |
7921925c | 408 | { |
39bcc759 | 409 | if (SUBRP (object)) |
7921925c JB |
410 | return Qt; |
411 | return Qnil; | |
412 | } | |
413 | ||
dbc4e1c1 | 414 | DEFUN ("byte-code-function-p", Fbyte_code_function_p, Sbyte_code_function_p, |
c2124165 | 415 | 1, 1, 0, "Return t if OBJECT is a byte-compiled function object.") |
39bcc759 RS |
416 | (object) |
417 | Lisp_Object object; | |
7921925c | 418 | { |
39bcc759 | 419 | if (COMPILEDP (object)) |
7921925c JB |
420 | return Qt; |
421 | return Qnil; | |
422 | } | |
423 | ||
0321d75c | 424 | DEFUN ("char-or-string-p", Fchar_or_string_p, Schar_or_string_p, 1, 1, 0, |
c2124165 | 425 | "Return t if OBJECT is a character (an integer) or a string.") |
39bcc759 RS |
426 | (object) |
427 | register Lisp_Object object; | |
7921925c | 428 | { |
39bcc759 | 429 | if (INTEGERP (object) || STRINGP (object)) |
7921925c JB |
430 | return Qt; |
431 | return Qnil; | |
432 | } | |
433 | \f | |
c2124165 | 434 | DEFUN ("integerp", Fintegerp, Sintegerp, 1, 1, 0, "Return t if OBJECT is an integer.") |
39bcc759 RS |
435 | (object) |
436 | Lisp_Object object; | |
7921925c | 437 | { |
39bcc759 | 438 | if (INTEGERP (object)) |
7921925c JB |
439 | return Qt; |
440 | return Qnil; | |
441 | } | |
442 | ||
464f8898 | 443 | DEFUN ("integer-or-marker-p", Finteger_or_marker_p, Sinteger_or_marker_p, 1, 1, 0, |
c2124165 | 444 | "Return t if OBJECT is an integer or a marker (editor pointer).") |
39bcc759 RS |
445 | (object) |
446 | register Lisp_Object object; | |
7921925c | 447 | { |
39bcc759 | 448 | if (MARKERP (object) || INTEGERP (object)) |
7921925c JB |
449 | return Qt; |
450 | return Qnil; | |
451 | } | |
452 | ||
0321d75c | 453 | DEFUN ("natnump", Fnatnump, Snatnump, 1, 1, 0, |
c2124165 | 454 | "Return t if OBJECT is a nonnegative integer.") |
39bcc759 RS |
455 | (object) |
456 | Lisp_Object object; | |
7921925c | 457 | { |
39bcc759 | 458 | if (NATNUMP (object)) |
7921925c JB |
459 | return Qt; |
460 | return Qnil; | |
461 | } | |
462 | ||
463 | DEFUN ("numberp", Fnumberp, Snumberp, 1, 1, 0, | |
c2124165 | 464 | "Return t if OBJECT is a number (floating point or integer).") |
39bcc759 RS |
465 | (object) |
466 | Lisp_Object object; | |
7921925c | 467 | { |
39bcc759 | 468 | if (NUMBERP (object)) |
7921925c | 469 | return Qt; |
dbc4e1c1 JB |
470 | else |
471 | return Qnil; | |
7921925c JB |
472 | } |
473 | ||
474 | DEFUN ("number-or-marker-p", Fnumber_or_marker_p, | |
475 | Snumber_or_marker_p, 1, 1, 0, | |
c2124165 | 476 | "Return t if OBJECT is a number or a marker.") |
39bcc759 RS |
477 | (object) |
478 | Lisp_Object object; | |
7921925c | 479 | { |
39bcc759 | 480 | if (NUMBERP (object) || MARKERP (object)) |
7921925c JB |
481 | return Qt; |
482 | return Qnil; | |
483 | } | |
464f8898 RS |
484 | |
485 | #ifdef LISP_FLOAT_TYPE | |
486 | DEFUN ("floatp", Ffloatp, Sfloatp, 1, 1, 0, | |
c2124165 | 487 | "Return t if OBJECT is a floating point number.") |
39bcc759 RS |
488 | (object) |
489 | Lisp_Object object; | |
464f8898 | 490 | { |
39bcc759 | 491 | if (FLOATP (object)) |
464f8898 RS |
492 | return Qt; |
493 | return Qnil; | |
494 | } | |
7921925c JB |
495 | #endif /* LISP_FLOAT_TYPE */ |
496 | \f | |
497 | /* Extract and set components of lists */ | |
498 | ||
499 | DEFUN ("car", Fcar, Scar, 1, 1, 0, | |
e1960a18 | 500 | "Return the car of LIST. If arg is nil, return nil.\n\ |
7921925c JB |
501 | Error if arg is not nil and not a cons cell. See also `car-safe'.") |
502 | (list) | |
503 | register Lisp_Object list; | |
504 | { | |
505 | while (1) | |
506 | { | |
e9ebc175 | 507 | if (CONSP (list)) |
7921925c JB |
508 | return XCONS (list)->car; |
509 | else if (EQ (list, Qnil)) | |
510 | return Qnil; | |
511 | else | |
512 | list = wrong_type_argument (Qlistp, list); | |
513 | } | |
514 | } | |
515 | ||
516 | DEFUN ("car-safe", Fcar_safe, Scar_safe, 1, 1, 0, | |
517 | "Return the car of OBJECT if it is a cons cell, or else nil.") | |
518 | (object) | |
519 | Lisp_Object object; | |
520 | { | |
e9ebc175 | 521 | if (CONSP (object)) |
7921925c JB |
522 | return XCONS (object)->car; |
523 | else | |
524 | return Qnil; | |
525 | } | |
526 | ||
527 | DEFUN ("cdr", Fcdr, Scdr, 1, 1, 0, | |
e1960a18 | 528 | "Return the cdr of LIST. If arg is nil, return nil.\n\ |
7921925c JB |
529 | Error if arg is not nil and not a cons cell. See also `cdr-safe'.") |
530 | ||
531 | (list) | |
532 | register Lisp_Object list; | |
533 | { | |
534 | while (1) | |
535 | { | |
e9ebc175 | 536 | if (CONSP (list)) |
7921925c JB |
537 | return XCONS (list)->cdr; |
538 | else if (EQ (list, Qnil)) | |
539 | return Qnil; | |
540 | else | |
541 | list = wrong_type_argument (Qlistp, list); | |
542 | } | |
543 | } | |
544 | ||
545 | DEFUN ("cdr-safe", Fcdr_safe, Scdr_safe, 1, 1, 0, | |
b7abc8fa | 546 | "Return the cdr of OBJECT if it is a cons cell, or else nil.") |
7921925c JB |
547 | (object) |
548 | Lisp_Object object; | |
549 | { | |
e9ebc175 | 550 | if (CONSP (object)) |
7921925c JB |
551 | return XCONS (object)->cdr; |
552 | else | |
553 | return Qnil; | |
554 | } | |
555 | ||
556 | DEFUN ("setcar", Fsetcar, Ssetcar, 2, 2, 0, | |
e1960a18 | 557 | "Set the car of CELL to be NEWCAR. Returns NEWCAR.") |
7921925c JB |
558 | (cell, newcar) |
559 | register Lisp_Object cell, newcar; | |
560 | { | |
e9ebc175 | 561 | if (!CONSP (cell)) |
7921925c JB |
562 | cell = wrong_type_argument (Qconsp, cell); |
563 | ||
564 | CHECK_IMPURE (cell); | |
565 | XCONS (cell)->car = newcar; | |
566 | return newcar; | |
567 | } | |
568 | ||
569 | DEFUN ("setcdr", Fsetcdr, Ssetcdr, 2, 2, 0, | |
e1960a18 | 570 | "Set the cdr of CELL to be NEWCDR. Returns NEWCDR.") |
7921925c JB |
571 | (cell, newcdr) |
572 | register Lisp_Object cell, newcdr; | |
573 | { | |
e9ebc175 | 574 | if (!CONSP (cell)) |
7921925c JB |
575 | cell = wrong_type_argument (Qconsp, cell); |
576 | ||
577 | CHECK_IMPURE (cell); | |
578 | XCONS (cell)->cdr = newcdr; | |
579 | return newcdr; | |
580 | } | |
581 | \f | |
582 | /* Extract and set components of symbols */ | |
583 | ||
c2124165 | 584 | DEFUN ("boundp", Fboundp, Sboundp, 1, 1, 0, "Return t if SYMBOL's value is not void.") |
d9c2a0f2 EN |
585 | (symbol) |
586 | register Lisp_Object symbol; | |
7921925c JB |
587 | { |
588 | Lisp_Object valcontents; | |
d9c2a0f2 | 589 | CHECK_SYMBOL (symbol, 0); |
7921925c | 590 | |
d9c2a0f2 | 591 | valcontents = XSYMBOL (symbol)->value; |
7921925c | 592 | |
aabf6bec KH |
593 | if (BUFFER_LOCAL_VALUEP (valcontents) |
594 | || SOME_BUFFER_LOCAL_VALUEP (valcontents)) | |
d9c2a0f2 | 595 | valcontents = swap_in_symval_forwarding (symbol, valcontents); |
7921925c | 596 | |
1bfcade3 | 597 | return (EQ (valcontents, Qunbound) ? Qnil : Qt); |
7921925c JB |
598 | } |
599 | ||
c2124165 | 600 | DEFUN ("fboundp", Ffboundp, Sfboundp, 1, 1, 0, "Return t if SYMBOL's function definition is not void.") |
d9c2a0f2 EN |
601 | (symbol) |
602 | register Lisp_Object symbol; | |
7921925c | 603 | { |
d9c2a0f2 EN |
604 | CHECK_SYMBOL (symbol, 0); |
605 | return (EQ (XSYMBOL (symbol)->function, Qunbound) ? Qnil : Qt); | |
7921925c JB |
606 | } |
607 | ||
608 | DEFUN ("makunbound", Fmakunbound, Smakunbound, 1, 1, 0, "Make SYMBOL's value be void.") | |
d9c2a0f2 EN |
609 | (symbol) |
610 | register Lisp_Object symbol; | |
7921925c | 611 | { |
d9c2a0f2 EN |
612 | CHECK_SYMBOL (symbol, 0); |
613 | if (NILP (symbol) || EQ (symbol, Qt)) | |
614 | return Fsignal (Qsetting_constant, Fcons (symbol, Qnil)); | |
615 | Fset (symbol, Qunbound); | |
616 | return symbol; | |
7921925c JB |
617 | } |
618 | ||
619 | DEFUN ("fmakunbound", Ffmakunbound, Sfmakunbound, 1, 1, 0, "Make SYMBOL's function definition be void.") | |
d9c2a0f2 EN |
620 | (symbol) |
621 | register Lisp_Object symbol; | |
7921925c | 622 | { |
d9c2a0f2 EN |
623 | CHECK_SYMBOL (symbol, 0); |
624 | if (NILP (symbol) || EQ (symbol, Qt)) | |
625 | return Fsignal (Qsetting_constant, Fcons (symbol, Qnil)); | |
626 | XSYMBOL (symbol)->function = Qunbound; | |
627 | return symbol; | |
7921925c JB |
628 | } |
629 | ||
630 | DEFUN ("symbol-function", Fsymbol_function, Ssymbol_function, 1, 1, 0, | |
631 | "Return SYMBOL's function definition. Error if that is void.") | |
ffd56f97 JB |
632 | (symbol) |
633 | register Lisp_Object symbol; | |
7921925c | 634 | { |
ffd56f97 JB |
635 | CHECK_SYMBOL (symbol, 0); |
636 | if (EQ (XSYMBOL (symbol)->function, Qunbound)) | |
637 | return Fsignal (Qvoid_function, Fcons (symbol, Qnil)); | |
638 | return XSYMBOL (symbol)->function; | |
7921925c JB |
639 | } |
640 | ||
641 | DEFUN ("symbol-plist", Fsymbol_plist, Ssymbol_plist, 1, 1, 0, "Return SYMBOL's property list.") | |
d9c2a0f2 EN |
642 | (symbol) |
643 | register Lisp_Object symbol; | |
7921925c | 644 | { |
d9c2a0f2 EN |
645 | CHECK_SYMBOL (symbol, 0); |
646 | return XSYMBOL (symbol)->plist; | |
7921925c JB |
647 | } |
648 | ||
649 | DEFUN ("symbol-name", Fsymbol_name, Ssymbol_name, 1, 1, 0, "Return SYMBOL's name, a string.") | |
d9c2a0f2 EN |
650 | (symbol) |
651 | register Lisp_Object symbol; | |
7921925c JB |
652 | { |
653 | register Lisp_Object name; | |
654 | ||
d9c2a0f2 EN |
655 | CHECK_SYMBOL (symbol, 0); |
656 | XSETSTRING (name, XSYMBOL (symbol)->name); | |
7921925c JB |
657 | return name; |
658 | } | |
659 | ||
660 | DEFUN ("fset", Ffset, Sfset, 2, 2, 0, | |
8c0b5540 RS |
661 | "Set SYMBOL's function definition to DEFINITION, and return DEFINITION.") |
662 | (symbol, definition) | |
663 | register Lisp_Object symbol, definition; | |
d9c2a0f2 EN |
664 | { |
665 | CHECK_SYMBOL (symbol, 0); | |
666 | if (NILP (symbol) || EQ (symbol, Qt)) | |
667 | return Fsignal (Qsetting_constant, Fcons (symbol, Qnil)); | |
668 | if (!NILP (Vautoload_queue) && !EQ (XSYMBOL (symbol)->function, Qunbound)) | |
669 | Vautoload_queue = Fcons (Fcons (symbol, XSYMBOL (symbol)->function), | |
7921925c | 670 | Vautoload_queue); |
8c0b5540 | 671 | XSYMBOL (symbol)->function = definition; |
f845f2c9 | 672 | /* Handle automatic advice activation */ |
d9c2a0f2 | 673 | if (CONSP (XSYMBOL (symbol)->plist) && !NILP (Fget (symbol, Qad_advice_info))) |
f845f2c9 | 674 | { |
d9c2a0f2 | 675 | call2 (Qad_activate, symbol, Qnil); |
8c0b5540 | 676 | definition = XSYMBOL (symbol)->function; |
f845f2c9 | 677 | } |
8c0b5540 | 678 | return definition; |
7921925c JB |
679 | } |
680 | ||
80df38a2 | 681 | DEFUN ("defalias", Fdefalias, Sdefalias, 2, 2, 0, |
73e0d965 | 682 | "Set SYMBOL's function definition to DEFINITION, and return DEFINITION.\n\ |
fc08c367 | 683 | Associates the function with the current load file, if any.") |
73e0d965 RS |
684 | (symbol, definition) |
685 | register Lisp_Object symbol, definition; | |
fc08c367 | 686 | { |
d9c2a0f2 EN |
687 | CHECK_SYMBOL (symbol, 0); |
688 | if (!NILP (Vautoload_queue) && !EQ (XSYMBOL (symbol)->function, Qunbound)) | |
689 | Vautoload_queue = Fcons (Fcons (symbol, XSYMBOL (symbol)->function), | |
fc08c367 | 690 | Vautoload_queue); |
73e0d965 | 691 | XSYMBOL (symbol)->function = definition; |
ab297811 | 692 | /* Handle automatic advice activation */ |
d9c2a0f2 | 693 | if (CONSP (XSYMBOL (symbol)->plist) && !NILP (Fget (symbol, Qad_advice_info))) |
ab297811 | 694 | { |
d9c2a0f2 | 695 | call2 (Qad_activate, symbol, Qnil); |
73e0d965 | 696 | definition = XSYMBOL (symbol)->function; |
ab297811 | 697 | } |
d9c2a0f2 | 698 | LOADHIST_ATTACH (symbol); |
73e0d965 | 699 | return definition; |
fc08c367 RS |
700 | } |
701 | ||
7921925c JB |
702 | DEFUN ("setplist", Fsetplist, Ssetplist, 2, 2, 0, |
703 | "Set SYMBOL's property list to NEWVAL, and return NEWVAL.") | |
d9c2a0f2 EN |
704 | (symbol, newplist) |
705 | register Lisp_Object symbol, newplist; | |
7921925c | 706 | { |
d9c2a0f2 EN |
707 | CHECK_SYMBOL (symbol, 0); |
708 | XSYMBOL (symbol)->plist = newplist; | |
7921925c JB |
709 | return newplist; |
710 | } | |
ffd56f97 | 711 | |
7921925c JB |
712 | \f |
713 | /* Getting and setting values of symbols */ | |
714 | ||
715 | /* Given the raw contents of a symbol value cell, | |
716 | return the Lisp value of the symbol. | |
717 | This does not handle buffer-local variables; use | |
718 | swap_in_symval_forwarding for that. */ | |
719 | ||
720 | Lisp_Object | |
721 | do_symval_forwarding (valcontents) | |
722 | register Lisp_Object valcontents; | |
723 | { | |
724 | register Lisp_Object val; | |
46b2ac21 KH |
725 | int offset; |
726 | if (MISCP (valcontents)) | |
324a6eef | 727 | switch (XMISCTYPE (valcontents)) |
46b2ac21 KH |
728 | { |
729 | case Lisp_Misc_Intfwd: | |
730 | XSETINT (val, *XINTFWD (valcontents)->intvar); | |
731 | return val; | |
7921925c | 732 | |
46b2ac21 KH |
733 | case Lisp_Misc_Boolfwd: |
734 | return (*XBOOLFWD (valcontents)->boolvar ? Qt : Qnil); | |
7921925c | 735 | |
46b2ac21 KH |
736 | case Lisp_Misc_Objfwd: |
737 | return *XOBJFWD (valcontents)->objvar; | |
7921925c | 738 | |
46b2ac21 KH |
739 | case Lisp_Misc_Buffer_Objfwd: |
740 | offset = XBUFFER_OBJFWD (valcontents)->offset; | |
741 | return *(Lisp_Object *)(offset + (char *)current_buffer); | |
7403b5c8 | 742 | |
e5f8af9e KH |
743 | case Lisp_Misc_Kboard_Objfwd: |
744 | offset = XKBOARD_OBJFWD (valcontents)->offset; | |
745 | return *(Lisp_Object *)(offset + (char *)current_kboard); | |
46b2ac21 | 746 | } |
7921925c JB |
747 | return valcontents; |
748 | } | |
749 | ||
d9c2a0f2 EN |
750 | /* Store NEWVAL into SYMBOL, where VALCONTENTS is found in the value cell |
751 | of SYMBOL. If SYMBOL is buffer-local, VALCONTENTS should be the | |
7921925c JB |
752 | buffer-independent contents of the value cell: forwarded just one |
753 | step past the buffer-localness. */ | |
754 | ||
755 | void | |
d9c2a0f2 EN |
756 | store_symval_forwarding (symbol, valcontents, newval) |
757 | Lisp_Object symbol; | |
7921925c JB |
758 | register Lisp_Object valcontents, newval; |
759 | { | |
0220c518 | 760 | switch (SWITCH_ENUM_CAST (XTYPE (valcontents))) |
7921925c | 761 | { |
46b2ac21 | 762 | case Lisp_Misc: |
324a6eef | 763 | switch (XMISCTYPE (valcontents)) |
46b2ac21 KH |
764 | { |
765 | case Lisp_Misc_Intfwd: | |
766 | CHECK_NUMBER (newval, 1); | |
767 | *XINTFWD (valcontents)->intvar = XINT (newval); | |
e6c82a8d RS |
768 | if (*XINTFWD (valcontents)->intvar != XINT (newval)) |
769 | error ("Value out of range for variable `%s'", | |
d9c2a0f2 | 770 | XSYMBOL (symbol)->name->data); |
46b2ac21 KH |
771 | break; |
772 | ||
773 | case Lisp_Misc_Boolfwd: | |
774 | *XBOOLFWD (valcontents)->boolvar = NILP (newval) ? 0 : 1; | |
775 | break; | |
776 | ||
777 | case Lisp_Misc_Objfwd: | |
778 | *XOBJFWD (valcontents)->objvar = newval; | |
779 | break; | |
780 | ||
781 | case Lisp_Misc_Buffer_Objfwd: | |
782 | { | |
783 | int offset = XBUFFER_OBJFWD (valcontents)->offset; | |
784 | Lisp_Object type; | |
785 | ||
786 | type = *(Lisp_Object *)(offset + (char *)&buffer_local_types); | |
787 | if (! NILP (type) && ! NILP (newval) | |
788 | && XTYPE (newval) != XINT (type)) | |
789 | buffer_slot_type_mismatch (offset); | |
790 | ||
791 | *(Lisp_Object *)(offset + (char *)current_buffer) = newval; | |
46b2ac21 | 792 | } |
7403b5c8 KH |
793 | break; |
794 | ||
e5f8af9e KH |
795 | case Lisp_Misc_Kboard_Objfwd: |
796 | (*(Lisp_Object *)((char *)current_kboard | |
797 | + XKBOARD_OBJFWD (valcontents)->offset)) | |
7403b5c8 KH |
798 | = newval; |
799 | break; | |
800 | ||
46b2ac21 KH |
801 | default: |
802 | goto def; | |
803 | } | |
7921925c JB |
804 | break; |
805 | ||
7921925c | 806 | default: |
46b2ac21 | 807 | def: |
d9c2a0f2 | 808 | valcontents = XSYMBOL (symbol)->value; |
e9ebc175 KH |
809 | if (BUFFER_LOCAL_VALUEP (valcontents) |
810 | || SOME_BUFFER_LOCAL_VALUEP (valcontents)) | |
8d4afcac | 811 | XBUFFER_LOCAL_VALUE (valcontents)->car = newval; |
7921925c | 812 | else |
d9c2a0f2 | 813 | XSYMBOL (symbol)->value = newval; |
7921925c JB |
814 | } |
815 | } | |
816 | ||
d9c2a0f2 | 817 | /* Set up the buffer-local symbol SYMBOL for validity in the current |
7921925c JB |
818 | buffer. VALCONTENTS is the contents of its value cell. |
819 | Return the value forwarded one step past the buffer-local indicator. */ | |
820 | ||
821 | static Lisp_Object | |
d9c2a0f2 EN |
822 | swap_in_symval_forwarding (symbol, valcontents) |
823 | Lisp_Object symbol, valcontents; | |
7921925c | 824 | { |
7403b5c8 | 825 | /* valcontents is a pointer to a struct resembling the cons |
7921925c | 826 | (REALVALUE BUFFER CURRENT-ALIST-ELEMENT . DEFAULT-VALUE)). |
7403b5c8 | 827 | |
7921925c | 828 | CURRENT-ALIST-ELEMENT is a pointer to an element of BUFFER's |
533984a8 JB |
829 | local_var_alist, that being the element whose car is this |
830 | variable. Or it can be a pointer to the | |
831 | (CURRENT-ALIST-ELEMENT . DEFAULT-VALUE), if BUFFER does not have | |
832 | an element in its alist for this variable. | |
833 | ||
834 | If the current buffer is not BUFFER, we store the current | |
835 | REALVALUE value into CURRENT-ALIST-ELEMENT, then find the | |
836 | appropriate alist element for the buffer now current and set up | |
837 | CURRENT-ALIST-ELEMENT. Then we set REALVALUE out of that | |
838 | element, and store into BUFFER. | |
839 | ||
7921925c JB |
840 | Note that REALVALUE can be a forwarding pointer. */ |
841 | ||
842 | register Lisp_Object tem1; | |
8d4afcac | 843 | tem1 = XCONS (XBUFFER_LOCAL_VALUE (valcontents)->cdr)->car; |
7921925c | 844 | |
a33ef3ab | 845 | if (NILP (tem1) || current_buffer != XBUFFER (tem1)) |
7921925c | 846 | { |
8d4afcac KH |
847 | tem1 = XCONS (XCONS (XBUFFER_LOCAL_VALUE (valcontents)->cdr)->cdr)->car; |
848 | Fsetcdr (tem1, | |
849 | do_symval_forwarding (XBUFFER_LOCAL_VALUE (valcontents)->car)); | |
d9c2a0f2 | 850 | tem1 = assq_no_quit (symbol, current_buffer->local_var_alist); |
a33ef3ab | 851 | if (NILP (tem1)) |
8d4afcac KH |
852 | tem1 = XCONS (XBUFFER_LOCAL_VALUE (valcontents)->cdr)->cdr; |
853 | XCONS (XCONS (XBUFFER_LOCAL_VALUE (valcontents)->cdr)->cdr)->car = tem1; | |
854 | XSETBUFFER (XCONS (XBUFFER_LOCAL_VALUE (valcontents)->cdr)->car, | |
855 | current_buffer); | |
d9c2a0f2 | 856 | store_symval_forwarding (symbol, XBUFFER_LOCAL_VALUE (valcontents)->car, |
8d4afcac | 857 | Fcdr (tem1)); |
7921925c | 858 | } |
8d4afcac | 859 | return XBUFFER_LOCAL_VALUE (valcontents)->car; |
7921925c JB |
860 | } |
861 | \f | |
14e76af9 JB |
862 | /* Find the value of a symbol, returning Qunbound if it's not bound. |
863 | This is helpful for code which just wants to get a variable's value | |
8e6208c5 | 864 | if it has one, without signaling an error. |
14e76af9 JB |
865 | Note that it must not be possible to quit |
866 | within this function. Great care is required for this. */ | |
7921925c | 867 | |
14e76af9 | 868 | Lisp_Object |
d9c2a0f2 EN |
869 | find_symbol_value (symbol) |
870 | Lisp_Object symbol; | |
7921925c JB |
871 | { |
872 | register Lisp_Object valcontents, tem1; | |
873 | register Lisp_Object val; | |
d9c2a0f2 EN |
874 | CHECK_SYMBOL (symbol, 0); |
875 | valcontents = XSYMBOL (symbol)->value; | |
7921925c | 876 | |
aabf6bec KH |
877 | if (BUFFER_LOCAL_VALUEP (valcontents) |
878 | || SOME_BUFFER_LOCAL_VALUEP (valcontents)) | |
d9c2a0f2 | 879 | valcontents = swap_in_symval_forwarding (symbol, valcontents); |
7921925c | 880 | |
536b772a KH |
881 | if (MISCP (valcontents)) |
882 | { | |
324a6eef | 883 | switch (XMISCTYPE (valcontents)) |
46b2ac21 KH |
884 | { |
885 | case Lisp_Misc_Intfwd: | |
886 | XSETINT (val, *XINTFWD (valcontents)->intvar); | |
887 | return val; | |
7921925c | 888 | |
46b2ac21 KH |
889 | case Lisp_Misc_Boolfwd: |
890 | return (*XBOOLFWD (valcontents)->boolvar ? Qt : Qnil); | |
7921925c | 891 | |
46b2ac21 KH |
892 | case Lisp_Misc_Objfwd: |
893 | return *XOBJFWD (valcontents)->objvar; | |
7921925c | 894 | |
46b2ac21 KH |
895 | case Lisp_Misc_Buffer_Objfwd: |
896 | return *(Lisp_Object *)(XBUFFER_OBJFWD (valcontents)->offset | |
897 | + (char *)current_buffer); | |
7403b5c8 | 898 | |
e5f8af9e KH |
899 | case Lisp_Misc_Kboard_Objfwd: |
900 | return *(Lisp_Object *)(XKBOARD_OBJFWD (valcontents)->offset | |
901 | + (char *)current_kboard); | |
46b2ac21 | 902 | } |
7921925c JB |
903 | } |
904 | ||
905 | return valcontents; | |
906 | } | |
907 | ||
14e76af9 JB |
908 | DEFUN ("symbol-value", Fsymbol_value, Ssymbol_value, 1, 1, 0, |
909 | "Return SYMBOL's value. Error if that is void.") | |
d9c2a0f2 EN |
910 | (symbol) |
911 | Lisp_Object symbol; | |
14e76af9 | 912 | { |
0671d7c0 | 913 | Lisp_Object val; |
14e76af9 | 914 | |
d9c2a0f2 | 915 | val = find_symbol_value (symbol); |
14e76af9 | 916 | if (EQ (val, Qunbound)) |
d9c2a0f2 | 917 | return Fsignal (Qvoid_variable, Fcons (symbol, Qnil)); |
14e76af9 JB |
918 | else |
919 | return val; | |
920 | } | |
921 | ||
7921925c JB |
922 | DEFUN ("set", Fset, Sset, 2, 2, 0, |
923 | "Set SYMBOL's value to NEWVAL, and return NEWVAL.") | |
d9c2a0f2 EN |
924 | (symbol, newval) |
925 | register Lisp_Object symbol, newval; | |
05ef7169 RS |
926 | { |
927 | return set_internal (symbol, newval, 0); | |
928 | } | |
929 | ||
25638b07 | 930 | /* Store the value NEWVAL into SYMBOL. |
05ef7169 RS |
931 | If BINDFLAG is zero, then if this symbol is supposed to become |
932 | local in every buffer where it is set, then we make it local. | |
933 | If BINDFLAG is nonzero, we don't do that. */ | |
934 | ||
935 | Lisp_Object | |
936 | set_internal (symbol, newval, bindflag) | |
937 | register Lisp_Object symbol, newval; | |
938 | int bindflag; | |
7921925c | 939 | { |
1bfcade3 | 940 | int voide = EQ (newval, Qunbound); |
7921925c | 941 | |
7921925c | 942 | register Lisp_Object valcontents, tem1, current_alist_element; |
7921925c | 943 | |
d9c2a0f2 EN |
944 | CHECK_SYMBOL (symbol, 0); |
945 | if (NILP (symbol) || EQ (symbol, Qt)) | |
946 | return Fsignal (Qsetting_constant, Fcons (symbol, Qnil)); | |
947 | valcontents = XSYMBOL (symbol)->value; | |
7921925c | 948 | |
e9ebc175 | 949 | if (BUFFER_OBJFWDP (valcontents)) |
7921925c | 950 | { |
46b2ac21 | 951 | register int idx = XBUFFER_OBJFWD (valcontents)->offset; |
865c050f KH |
952 | register int mask = XINT (*((Lisp_Object *) |
953 | (idx + (char *)&buffer_local_flags))); | |
7921925c JB |
954 | if (mask > 0) |
955 | current_buffer->local_var_flags |= mask; | |
956 | } | |
957 | ||
e9ebc175 KH |
958 | else if (BUFFER_LOCAL_VALUEP (valcontents) |
959 | || SOME_BUFFER_LOCAL_VALUEP (valcontents)) | |
7921925c | 960 | { |
8d4afcac KH |
961 | /* valcontents is actually a pointer to a struct resembling a cons, |
962 | with contents something like: | |
d8cafeb5 JB |
963 | (REALVALUE BUFFER CURRENT-ALIST-ELEMENT . DEFAULT-VALUE). |
964 | ||
965 | BUFFER is the last buffer for which this symbol's value was | |
966 | made up to date. | |
967 | ||
968 | CURRENT-ALIST-ELEMENT is a pointer to an element of BUFFER's | |
969 | local_var_alist, that being the element whose car is this | |
970 | variable. Or it can be a pointer to the | |
971 | (CURRENT-ALIST-ELEMENT . DEFAULT-VALUE), if BUFFER does not | |
972 | have an element in its alist for this variable (that is, if | |
973 | BUFFER sees the default value of this variable). | |
974 | ||
975 | If we want to examine or set the value and BUFFER is current, | |
976 | we just examine or set REALVALUE. If BUFFER is not current, we | |
977 | store the current REALVALUE value into CURRENT-ALIST-ELEMENT, | |
978 | then find the appropriate alist element for the buffer now | |
979 | current and set up CURRENT-ALIST-ELEMENT. Then we set | |
980 | REALVALUE out of that element, and store into BUFFER. | |
981 | ||
982 | If we are setting the variable and the current buffer does | |
983 | not have an alist entry for this variable, an alist entry is | |
984 | created. | |
985 | ||
986 | Note that REALVALUE can be a forwarding pointer. Each time | |
987 | it is examined or set, forwarding must be done. */ | |
988 | ||
989 | /* What value are we caching right now? */ | |
990 | current_alist_element = | |
8d4afcac | 991 | XCONS (XCONS (XBUFFER_LOCAL_VALUE (valcontents)->cdr)->cdr)->car; |
d8cafeb5 JB |
992 | |
993 | /* If the current buffer is not the buffer whose binding is | |
994 | currently cached, or if it's a Lisp_Buffer_Local_Value and | |
995 | we're looking at the default value, the cache is invalid; we | |
996 | need to write it out, and find the new CURRENT-ALIST-ELEMENT. */ | |
997 | if ((current_buffer | |
8d4afcac | 998 | != XBUFFER (XCONS (XBUFFER_LOCAL_VALUE (valcontents)->cdr)->car)) |
e9ebc175 | 999 | || (BUFFER_LOCAL_VALUEP (valcontents) |
b06faa91 JB |
1000 | && EQ (XCONS (current_alist_element)->car, |
1001 | current_alist_element))) | |
7921925c | 1002 | { |
d8cafeb5 JB |
1003 | /* Write out the cached value for the old buffer; copy it |
1004 | back to its alist element. This works if the current | |
1005 | buffer only sees the default value, too. */ | |
1006 | Fsetcdr (current_alist_element, | |
8d4afcac | 1007 | do_symval_forwarding (XBUFFER_LOCAL_VALUE (valcontents)->car)); |
7921925c | 1008 | |
d8cafeb5 | 1009 | /* Find the new value for CURRENT-ALIST-ELEMENT. */ |
d9c2a0f2 | 1010 | tem1 = Fassq (symbol, current_buffer->local_var_alist); |
a33ef3ab | 1011 | if (NILP (tem1)) |
d8cafeb5 JB |
1012 | { |
1013 | /* This buffer still sees the default value. */ | |
1014 | ||
1015 | /* If the variable is a Lisp_Some_Buffer_Local_Value, | |
05ef7169 | 1016 | or if this is `let' rather than `set', |
d8cafeb5 JB |
1017 | make CURRENT-ALIST-ELEMENT point to itself, |
1018 | indicating that we're seeing the default value. */ | |
05ef7169 | 1019 | if (bindflag || SOME_BUFFER_LOCAL_VALUEP (valcontents)) |
8d4afcac | 1020 | tem1 = XCONS (XBUFFER_LOCAL_VALUE (valcontents)->cdr)->cdr; |
d8cafeb5 | 1021 | |
05ef7169 RS |
1022 | /* If it's a Lisp_Buffer_Local_Value, being set not bound, |
1023 | give this buffer a new assoc for a local value and set | |
d8cafeb5 JB |
1024 | CURRENT-ALIST-ELEMENT to point to that. */ |
1025 | else | |
1026 | { | |
d9c2a0f2 | 1027 | tem1 = Fcons (symbol, Fcdr (current_alist_element)); |
d8cafeb5 JB |
1028 | current_buffer->local_var_alist = |
1029 | Fcons (tem1, current_buffer->local_var_alist); | |
1030 | } | |
1031 | } | |
1032 | /* Cache the new buffer's assoc in CURRENT-ALIST-ELEMENT. */ | |
8d4afcac KH |
1033 | XCONS (XCONS (XBUFFER_LOCAL_VALUE (valcontents)->cdr)->cdr)->car |
1034 | = tem1; | |
d8cafeb5 JB |
1035 | |
1036 | /* Set BUFFER, now that CURRENT-ALIST-ELEMENT is accurate. */ | |
8d4afcac KH |
1037 | XSETBUFFER (XCONS (XBUFFER_LOCAL_VALUE (valcontents)->cdr)->car, |
1038 | current_buffer); | |
7921925c | 1039 | } |
8d4afcac | 1040 | valcontents = XBUFFER_LOCAL_VALUE (valcontents)->car; |
7921925c | 1041 | } |
d8cafeb5 | 1042 | |
7921925c JB |
1043 | /* If storing void (making the symbol void), forward only through |
1044 | buffer-local indicator, not through Lisp_Objfwd, etc. */ | |
1045 | if (voide) | |
d9c2a0f2 | 1046 | store_symval_forwarding (symbol, Qnil, newval); |
7921925c | 1047 | else |
d9c2a0f2 | 1048 | store_symval_forwarding (symbol, valcontents, newval); |
d8cafeb5 | 1049 | |
7921925c JB |
1050 | return newval; |
1051 | } | |
1052 | \f | |
1053 | /* Access or set a buffer-local symbol's default value. */ | |
1054 | ||
d9c2a0f2 | 1055 | /* Return the default value of SYMBOL, but don't check for voidness. |
1bfcade3 | 1056 | Return Qunbound if it is void. */ |
7921925c JB |
1057 | |
1058 | Lisp_Object | |
d9c2a0f2 EN |
1059 | default_value (symbol) |
1060 | Lisp_Object symbol; | |
7921925c JB |
1061 | { |
1062 | register Lisp_Object valcontents; | |
1063 | ||
d9c2a0f2 EN |
1064 | CHECK_SYMBOL (symbol, 0); |
1065 | valcontents = XSYMBOL (symbol)->value; | |
7921925c JB |
1066 | |
1067 | /* For a built-in buffer-local variable, get the default value | |
1068 | rather than letting do_symval_forwarding get the current value. */ | |
e9ebc175 | 1069 | if (BUFFER_OBJFWDP (valcontents)) |
7921925c | 1070 | { |
46b2ac21 | 1071 | register int idx = XBUFFER_OBJFWD (valcontents)->offset; |
7921925c | 1072 | |
865c050f | 1073 | if (XINT (*(Lisp_Object *) (idx + (char *) &buffer_local_flags)) != 0) |
7921925c JB |
1074 | return *(Lisp_Object *)(idx + (char *) &buffer_defaults); |
1075 | } | |
1076 | ||
1077 | /* Handle user-created local variables. */ | |
e9ebc175 KH |
1078 | if (BUFFER_LOCAL_VALUEP (valcontents) |
1079 | || SOME_BUFFER_LOCAL_VALUEP (valcontents)) | |
7921925c JB |
1080 | { |
1081 | /* If var is set up for a buffer that lacks a local value for it, | |
1082 | the current value is nominally the default value. | |
1083 | But the current value slot may be more up to date, since | |
1084 | ordinary setq stores just that slot. So use that. */ | |
1085 | Lisp_Object current_alist_element, alist_element_car; | |
1086 | current_alist_element | |
8d4afcac | 1087 | = XCONS (XCONS (XBUFFER_LOCAL_VALUE (valcontents)->cdr)->cdr)->car; |
7921925c JB |
1088 | alist_element_car = XCONS (current_alist_element)->car; |
1089 | if (EQ (alist_element_car, current_alist_element)) | |
8d4afcac | 1090 | return do_symval_forwarding (XBUFFER_LOCAL_VALUE (valcontents)->car); |
7921925c | 1091 | else |
8d4afcac | 1092 | return XCONS (XCONS (XBUFFER_LOCAL_VALUE (valcontents)->cdr)->cdr)->cdr; |
7921925c JB |
1093 | } |
1094 | /* For other variables, get the current value. */ | |
1095 | return do_symval_forwarding (valcontents); | |
1096 | } | |
1097 | ||
1098 | DEFUN ("default-boundp", Fdefault_boundp, Sdefault_boundp, 1, 1, 0, | |
c2124165 | 1099 | "Return t if SYMBOL has a non-void default value.\n\ |
7921925c JB |
1100 | This is the value that is seen in buffers that do not have their own values\n\ |
1101 | for this variable.") | |
d9c2a0f2 EN |
1102 | (symbol) |
1103 | Lisp_Object symbol; | |
7921925c JB |
1104 | { |
1105 | register Lisp_Object value; | |
1106 | ||
d9c2a0f2 | 1107 | value = default_value (symbol); |
1bfcade3 | 1108 | return (EQ (value, Qunbound) ? Qnil : Qt); |
7921925c JB |
1109 | } |
1110 | ||
1111 | DEFUN ("default-value", Fdefault_value, Sdefault_value, 1, 1, 0, | |
1112 | "Return SYMBOL's default value.\n\ | |
1113 | This is the value that is seen in buffers that do not have their own values\n\ | |
1114 | for this variable. The default value is meaningful for variables with\n\ | |
1115 | local bindings in certain buffers.") | |
d9c2a0f2 EN |
1116 | (symbol) |
1117 | Lisp_Object symbol; | |
7921925c JB |
1118 | { |
1119 | register Lisp_Object value; | |
1120 | ||
d9c2a0f2 | 1121 | value = default_value (symbol); |
1bfcade3 | 1122 | if (EQ (value, Qunbound)) |
d9c2a0f2 | 1123 | return Fsignal (Qvoid_variable, Fcons (symbol, Qnil)); |
7921925c JB |
1124 | return value; |
1125 | } | |
1126 | ||
1127 | DEFUN ("set-default", Fset_default, Sset_default, 2, 2, 0, | |
1128 | "Set SYMBOL's default value to VAL. SYMBOL and VAL are evaluated.\n\ | |
1129 | The default value is seen in buffers that do not have their own values\n\ | |
1130 | for this variable.") | |
d9c2a0f2 EN |
1131 | (symbol, value) |
1132 | Lisp_Object symbol, value; | |
7921925c JB |
1133 | { |
1134 | register Lisp_Object valcontents, current_alist_element, alist_element_buffer; | |
1135 | ||
d9c2a0f2 EN |
1136 | CHECK_SYMBOL (symbol, 0); |
1137 | valcontents = XSYMBOL (symbol)->value; | |
7921925c JB |
1138 | |
1139 | /* Handle variables like case-fold-search that have special slots | |
1140 | in the buffer. Make them work apparently like Lisp_Buffer_Local_Value | |
1141 | variables. */ | |
e9ebc175 | 1142 | if (BUFFER_OBJFWDP (valcontents)) |
7921925c | 1143 | { |
46b2ac21 | 1144 | register int idx = XBUFFER_OBJFWD (valcontents)->offset; |
7921925c | 1145 | register struct buffer *b; |
865c050f KH |
1146 | register int mask = XINT (*((Lisp_Object *) |
1147 | (idx + (char *)&buffer_local_flags))); | |
7921925c JB |
1148 | |
1149 | if (mask > 0) | |
1150 | { | |
1151 | *(Lisp_Object *)(idx + (char *) &buffer_defaults) = value; | |
1152 | for (b = all_buffers; b; b = b->next) | |
1153 | if (!(b->local_var_flags & mask)) | |
1154 | *(Lisp_Object *)(idx + (char *) b) = value; | |
1155 | } | |
1156 | return value; | |
1157 | } | |
1158 | ||
e9ebc175 KH |
1159 | if (!BUFFER_LOCAL_VALUEP (valcontents) |
1160 | && !SOME_BUFFER_LOCAL_VALUEP (valcontents)) | |
d9c2a0f2 | 1161 | return Fset (symbol, value); |
7921925c JB |
1162 | |
1163 | /* Store new value into the DEFAULT-VALUE slot */ | |
8d4afcac | 1164 | XCONS (XCONS (XBUFFER_LOCAL_VALUE (valcontents)->cdr)->cdr)->cdr = value; |
7921925c JB |
1165 | |
1166 | /* If that slot is current, we must set the REALVALUE slot too */ | |
8d4afcac KH |
1167 | current_alist_element |
1168 | = XCONS (XCONS (XBUFFER_LOCAL_VALUE (valcontents)->cdr)->cdr)->car; | |
7921925c JB |
1169 | alist_element_buffer = Fcar (current_alist_element); |
1170 | if (EQ (alist_element_buffer, current_alist_element)) | |
d9c2a0f2 | 1171 | store_symval_forwarding (symbol, XBUFFER_LOCAL_VALUE (valcontents)->car, |
8d4afcac | 1172 | value); |
7921925c JB |
1173 | |
1174 | return value; | |
1175 | } | |
1176 | ||
1177 | DEFUN ("setq-default", Fsetq_default, Ssetq_default, 2, UNEVALLED, 0, | |
0412bf67 RS |
1178 | "Set the default value of variable VAR to VALUE.\n\ |
1179 | VAR, the variable name, is literal (not evaluated);\n\ | |
1180 | VALUE is an expression and it is evaluated.\n\ | |
1181 | The default value of a variable is seen in buffers\n\ | |
1182 | that do not have their own values for the variable.\n\ | |
1183 | \n\ | |
1184 | More generally, you can use multiple variables and values, as in\n\ | |
d9c2a0f2 EN |
1185 | (setq-default SYMBOL VALUE SYMBOL VALUE...)\n\ |
1186 | This sets each SYMBOL's default value to the corresponding VALUE.\n\ | |
1187 | The VALUE for the Nth SYMBOL can refer to the new default values\n\ | |
0412bf67 | 1188 | of previous SYMs.") |
7921925c JB |
1189 | (args) |
1190 | Lisp_Object args; | |
1191 | { | |
1192 | register Lisp_Object args_left; | |
d9c2a0f2 | 1193 | register Lisp_Object val, symbol; |
7921925c JB |
1194 | struct gcpro gcpro1; |
1195 | ||
a33ef3ab | 1196 | if (NILP (args)) |
7921925c JB |
1197 | return Qnil; |
1198 | ||
1199 | args_left = args; | |
1200 | GCPRO1 (args); | |
1201 | ||
1202 | do | |
1203 | { | |
1204 | val = Feval (Fcar (Fcdr (args_left))); | |
d9c2a0f2 EN |
1205 | symbol = Fcar (args_left); |
1206 | Fset_default (symbol, val); | |
7921925c JB |
1207 | args_left = Fcdr (Fcdr (args_left)); |
1208 | } | |
a33ef3ab | 1209 | while (!NILP (args_left)); |
7921925c JB |
1210 | |
1211 | UNGCPRO; | |
1212 | return val; | |
1213 | } | |
1214 | \f | |
a5ca2b75 JB |
1215 | /* Lisp functions for creating and removing buffer-local variables. */ |
1216 | ||
7921925c JB |
1217 | DEFUN ("make-variable-buffer-local", Fmake_variable_buffer_local, Smake_variable_buffer_local, |
1218 | 1, 1, "vMake Variable Buffer Local: ", | |
1219 | "Make VARIABLE have a separate value for each buffer.\n\ | |
1220 | At any time, the value for the current buffer is in effect.\n\ | |
1221 | There is also a default value which is seen in any buffer which has not yet\n\ | |
1222 | set its own value.\n\ | |
1223 | Using `set' or `setq' to set the variable causes it to have a separate value\n\ | |
1224 | for the current buffer if it was previously using the default value.\n\ | |
1225 | The function `default-value' gets the default value and `set-default' sets it.") | |
d9c2a0f2 EN |
1226 | (variable) |
1227 | register Lisp_Object variable; | |
7921925c | 1228 | { |
8d4afcac | 1229 | register Lisp_Object tem, valcontents, newval; |
7921925c | 1230 | |
d9c2a0f2 | 1231 | CHECK_SYMBOL (variable, 0); |
7921925c | 1232 | |
d9c2a0f2 EN |
1233 | valcontents = XSYMBOL (variable)->value; |
1234 | if (EQ (variable, Qnil) || EQ (variable, Qt) || KBOARD_OBJFWDP (valcontents)) | |
1235 | error ("Symbol %s may not be buffer-local", XSYMBOL (variable)->name->data); | |
7921925c | 1236 | |
e9ebc175 | 1237 | if (BUFFER_LOCAL_VALUEP (valcontents) || BUFFER_OBJFWDP (valcontents)) |
d9c2a0f2 | 1238 | return variable; |
e9ebc175 | 1239 | if (SOME_BUFFER_LOCAL_VALUEP (valcontents)) |
7921925c | 1240 | { |
d9c2a0f2 EN |
1241 | XMISCTYPE (XSYMBOL (variable)->value) = Lisp_Misc_Buffer_Local_Value; |
1242 | return variable; | |
7921925c JB |
1243 | } |
1244 | if (EQ (valcontents, Qunbound)) | |
d9c2a0f2 EN |
1245 | XSYMBOL (variable)->value = Qnil; |
1246 | tem = Fcons (Qnil, Fsymbol_value (variable)); | |
7921925c | 1247 | XCONS (tem)->car = tem; |
8d4afcac | 1248 | newval = allocate_misc (); |
324a6eef | 1249 | XMISCTYPE (newval) = Lisp_Misc_Buffer_Local_Value; |
d9c2a0f2 | 1250 | XBUFFER_LOCAL_VALUE (newval)->car = XSYMBOL (variable)->value; |
8d4afcac | 1251 | XBUFFER_LOCAL_VALUE (newval)->cdr = Fcons (Fcurrent_buffer (), tem); |
d9c2a0f2 EN |
1252 | XSYMBOL (variable)->value = newval; |
1253 | return variable; | |
7921925c JB |
1254 | } |
1255 | ||
1256 | DEFUN ("make-local-variable", Fmake_local_variable, Smake_local_variable, | |
1257 | 1, 1, "vMake Local Variable: ", | |
1258 | "Make VARIABLE have a separate value in the current buffer.\n\ | |
1259 | Other buffers will continue to share a common default value.\n\ | |
a782f0d5 RS |
1260 | \(The buffer-local value of VARIABLE starts out as the same value\n\ |
1261 | VARIABLE previously had. If VARIABLE was void, it remains void.\)\n\ | |
7921925c JB |
1262 | See also `make-variable-buffer-local'.\n\n\ |
1263 | If the variable is already arranged to become local when set,\n\ | |
1264 | this function causes a local value to exist for this buffer,\n\ | |
62476adc RS |
1265 | just as setting the variable would do.\n\ |
1266 | \n\ | |
1267 | Do not use `make-local-variable' to make a hook variable buffer-local.\n\ | |
1268 | Use `make-local-hook' instead.") | |
d9c2a0f2 EN |
1269 | (variable) |
1270 | register Lisp_Object variable; | |
7921925c JB |
1271 | { |
1272 | register Lisp_Object tem, valcontents; | |
1273 | ||
d9c2a0f2 | 1274 | CHECK_SYMBOL (variable, 0); |
7921925c | 1275 | |
d9c2a0f2 EN |
1276 | valcontents = XSYMBOL (variable)->value; |
1277 | if (EQ (variable, Qnil) || EQ (variable, Qt) || KBOARD_OBJFWDP (valcontents)) | |
1278 | error ("Symbol %s may not be buffer-local", XSYMBOL (variable)->name->data); | |
7921925c | 1279 | |
e9ebc175 | 1280 | if (BUFFER_LOCAL_VALUEP (valcontents) || BUFFER_OBJFWDP (valcontents)) |
7921925c | 1281 | { |
d9c2a0f2 | 1282 | tem = Fboundp (variable); |
7403b5c8 | 1283 | |
7921925c JB |
1284 | /* Make sure the symbol has a local value in this particular buffer, |
1285 | by setting it to the same value it already has. */ | |
d9c2a0f2 EN |
1286 | Fset (variable, (EQ (tem, Qt) ? Fsymbol_value (variable) : Qunbound)); |
1287 | return variable; | |
7921925c | 1288 | } |
d9c2a0f2 | 1289 | /* Make sure symbol is set up to hold per-buffer values */ |
e9ebc175 | 1290 | if (!SOME_BUFFER_LOCAL_VALUEP (valcontents)) |
7921925c | 1291 | { |
8d4afcac | 1292 | Lisp_Object newval; |
7921925c JB |
1293 | tem = Fcons (Qnil, do_symval_forwarding (valcontents)); |
1294 | XCONS (tem)->car = tem; | |
8d4afcac | 1295 | newval = allocate_misc (); |
324a6eef | 1296 | XMISCTYPE (newval) = Lisp_Misc_Some_Buffer_Local_Value; |
d9c2a0f2 | 1297 | XBUFFER_LOCAL_VALUE (newval)->car = XSYMBOL (variable)->value; |
8d4afcac | 1298 | XBUFFER_LOCAL_VALUE (newval)->cdr = Fcons (Qnil, tem); |
d9c2a0f2 | 1299 | XSYMBOL (variable)->value = newval; |
7921925c | 1300 | } |
d9c2a0f2 EN |
1301 | /* Make sure this buffer has its own value of symbol */ |
1302 | tem = Fassq (variable, current_buffer->local_var_alist); | |
a33ef3ab | 1303 | if (NILP (tem)) |
7921925c | 1304 | { |
a5d004a1 RS |
1305 | /* Swap out any local binding for some other buffer, and make |
1306 | sure the current value is permanently recorded, if it's the | |
1307 | default value. */ | |
d9c2a0f2 | 1308 | find_symbol_value (variable); |
a5d004a1 | 1309 | |
7921925c | 1310 | current_buffer->local_var_alist |
d9c2a0f2 | 1311 | = Fcons (Fcons (variable, XCONS (XCONS (XBUFFER_LOCAL_VALUE (XSYMBOL (variable)->value)->cdr)->cdr)->cdr), |
7921925c JB |
1312 | current_buffer->local_var_alist); |
1313 | ||
1314 | /* Make sure symbol does not think it is set up for this buffer; | |
1315 | force it to look once again for this buffer's value */ | |
1316 | { | |
8d4afcac | 1317 | Lisp_Object *pvalbuf; |
a5d004a1 | 1318 | |
d9c2a0f2 | 1319 | valcontents = XSYMBOL (variable)->value; |
a5d004a1 | 1320 | |
8d4afcac KH |
1321 | pvalbuf = &XCONS (XBUFFER_LOCAL_VALUE (valcontents)->cdr)->car; |
1322 | if (current_buffer == XBUFFER (*pvalbuf)) | |
1323 | *pvalbuf = Qnil; | |
7921925c | 1324 | } |
7921925c | 1325 | } |
a5ca2b75 JB |
1326 | |
1327 | /* If the symbol forwards into a C variable, then swap in the | |
1328 | variable for this buffer immediately. If C code modifies the | |
1329 | variable before we swap in, then that new value will clobber the | |
1330 | default value the next time we swap. */ | |
d9c2a0f2 | 1331 | valcontents = XBUFFER_LOCAL_VALUE (XSYMBOL (variable)->value)->car; |
e9ebc175 | 1332 | if (INTFWDP (valcontents) || BOOLFWDP (valcontents) || OBJFWDP (valcontents)) |
d9c2a0f2 | 1333 | swap_in_symval_forwarding (variable, XSYMBOL (variable)->value); |
a5ca2b75 | 1334 | |
d9c2a0f2 | 1335 | return variable; |
7921925c JB |
1336 | } |
1337 | ||
1338 | DEFUN ("kill-local-variable", Fkill_local_variable, Skill_local_variable, | |
1339 | 1, 1, "vKill Local Variable: ", | |
1340 | "Make VARIABLE no longer have a separate value in the current buffer.\n\ | |
1341 | From now on the default value will apply in this buffer.") | |
d9c2a0f2 EN |
1342 | (variable) |
1343 | register Lisp_Object variable; | |
7921925c JB |
1344 | { |
1345 | register Lisp_Object tem, valcontents; | |
1346 | ||
d9c2a0f2 | 1347 | CHECK_SYMBOL (variable, 0); |
7921925c | 1348 | |
d9c2a0f2 | 1349 | valcontents = XSYMBOL (variable)->value; |
7921925c | 1350 | |
e9ebc175 | 1351 | if (BUFFER_OBJFWDP (valcontents)) |
7921925c | 1352 | { |
46b2ac21 | 1353 | register int idx = XBUFFER_OBJFWD (valcontents)->offset; |
865c050f KH |
1354 | register int mask = XINT (*((Lisp_Object*) |
1355 | (idx + (char *)&buffer_local_flags))); | |
7921925c JB |
1356 | |
1357 | if (mask > 0) | |
1358 | { | |
1359 | *(Lisp_Object *)(idx + (char *) current_buffer) | |
1360 | = *(Lisp_Object *)(idx + (char *) &buffer_defaults); | |
1361 | current_buffer->local_var_flags &= ~mask; | |
1362 | } | |
d9c2a0f2 | 1363 | return variable; |
7921925c JB |
1364 | } |
1365 | ||
e9ebc175 KH |
1366 | if (!BUFFER_LOCAL_VALUEP (valcontents) |
1367 | && !SOME_BUFFER_LOCAL_VALUEP (valcontents)) | |
d9c2a0f2 | 1368 | return variable; |
7921925c JB |
1369 | |
1370 | /* Get rid of this buffer's alist element, if any */ | |
1371 | ||
d9c2a0f2 | 1372 | tem = Fassq (variable, current_buffer->local_var_alist); |
a33ef3ab | 1373 | if (!NILP (tem)) |
8d4afcac KH |
1374 | current_buffer->local_var_alist |
1375 | = Fdelq (tem, current_buffer->local_var_alist); | |
7921925c | 1376 | |
79c83e03 KH |
1377 | /* If the symbol is set up for the current buffer, recompute its |
1378 | value. We have to do it now, or else forwarded objects won't | |
1379 | work right. */ | |
7921925c | 1380 | { |
8d4afcac | 1381 | Lisp_Object *pvalbuf; |
d9c2a0f2 | 1382 | valcontents = XSYMBOL (variable)->value; |
8d4afcac KH |
1383 | pvalbuf = &XCONS (XBUFFER_LOCAL_VALUE (valcontents)->cdr)->car; |
1384 | if (current_buffer == XBUFFER (*pvalbuf)) | |
79c83e03 KH |
1385 | { |
1386 | *pvalbuf = Qnil; | |
978dd578 | 1387 | find_symbol_value (variable); |
79c83e03 | 1388 | } |
7921925c JB |
1389 | } |
1390 | ||
d9c2a0f2 | 1391 | return variable; |
7921925c | 1392 | } |
62476adc RS |
1393 | |
1394 | DEFUN ("local-variable-p", Flocal_variable_p, Slocal_variable_p, | |
c48ead86 KH |
1395 | 1, 2, 0, |
1396 | "Non-nil if VARIABLE has a local binding in buffer BUFFER.\n\ | |
1397 | BUFFER defaults to the current buffer.") | |
d9c2a0f2 EN |
1398 | (variable, buffer) |
1399 | register Lisp_Object variable, buffer; | |
62476adc RS |
1400 | { |
1401 | Lisp_Object valcontents; | |
c48ead86 KH |
1402 | register struct buffer *buf; |
1403 | ||
1404 | if (NILP (buffer)) | |
1405 | buf = current_buffer; | |
1406 | else | |
1407 | { | |
1408 | CHECK_BUFFER (buffer, 0); | |
1409 | buf = XBUFFER (buffer); | |
1410 | } | |
62476adc | 1411 | |
d9c2a0f2 | 1412 | CHECK_SYMBOL (variable, 0); |
62476adc | 1413 | |
d9c2a0f2 | 1414 | valcontents = XSYMBOL (variable)->value; |
c48ead86 | 1415 | if (BUFFER_LOCAL_VALUEP (valcontents) |
1e5f16fa | 1416 | || SOME_BUFFER_LOCAL_VALUEP (valcontents)) |
c48ead86 KH |
1417 | { |
1418 | Lisp_Object tail, elt; | |
1419 | for (tail = buf->local_var_alist; CONSP (tail); tail = XCONS (tail)->cdr) | |
1420 | { | |
1421 | elt = XCONS (tail)->car; | |
d9c2a0f2 | 1422 | if (EQ (variable, XCONS (elt)->car)) |
c48ead86 KH |
1423 | return Qt; |
1424 | } | |
1425 | } | |
1426 | if (BUFFER_OBJFWDP (valcontents)) | |
1427 | { | |
1428 | int offset = XBUFFER_OBJFWD (valcontents)->offset; | |
1429 | int mask = XINT (*(Lisp_Object *)(offset + (char *)&buffer_local_flags)); | |
1430 | if (mask == -1 || (buf->local_var_flags & mask)) | |
1431 | return Qt; | |
1432 | } | |
1433 | return Qnil; | |
62476adc | 1434 | } |
f4f04cee RS |
1435 | |
1436 | DEFUN ("local-variable-if-set-p", Flocal_variable_if_set_p, Slocal_variable_if_set_p, | |
1437 | 1, 2, 0, | |
1438 | "Non-nil if VARIABLE will be local in buffer BUFFER if it is set there.\n\ | |
1439 | BUFFER defaults to the current buffer.") | |
d9c2a0f2 EN |
1440 | (variable, buffer) |
1441 | register Lisp_Object variable, buffer; | |
f4f04cee RS |
1442 | { |
1443 | Lisp_Object valcontents; | |
1444 | register struct buffer *buf; | |
1445 | ||
1446 | if (NILP (buffer)) | |
1447 | buf = current_buffer; | |
1448 | else | |
1449 | { | |
1450 | CHECK_BUFFER (buffer, 0); | |
1451 | buf = XBUFFER (buffer); | |
1452 | } | |
1453 | ||
d9c2a0f2 | 1454 | CHECK_SYMBOL (variable, 0); |
f4f04cee | 1455 | |
d9c2a0f2 | 1456 | valcontents = XSYMBOL (variable)->value; |
f4f04cee RS |
1457 | |
1458 | /* This means that make-variable-buffer-local was done. */ | |
1459 | if (BUFFER_LOCAL_VALUEP (valcontents)) | |
1460 | return Qt; | |
1461 | /* All these slots become local if they are set. */ | |
1462 | if (BUFFER_OBJFWDP (valcontents)) | |
1463 | return Qt; | |
1464 | if (SOME_BUFFER_LOCAL_VALUEP (valcontents)) | |
1465 | { | |
1466 | Lisp_Object tail, elt; | |
1467 | for (tail = buf->local_var_alist; CONSP (tail); tail = XCONS (tail)->cdr) | |
1468 | { | |
1469 | elt = XCONS (tail)->car; | |
d9c2a0f2 | 1470 | if (EQ (variable, XCONS (elt)->car)) |
f4f04cee RS |
1471 | return Qt; |
1472 | } | |
1473 | } | |
1474 | return Qnil; | |
1475 | } | |
7921925c | 1476 | \f |
ffd56f97 JB |
1477 | /* Find the function at the end of a chain of symbol function indirections. */ |
1478 | ||
1479 | /* If OBJECT is a symbol, find the end of its function chain and | |
1480 | return the value found there. If OBJECT is not a symbol, just | |
1481 | return it. If there is a cycle in the function chain, signal a | |
1482 | cyclic-function-indirection error. | |
1483 | ||
1484 | This is like Findirect_function, except that it doesn't signal an | |
1485 | error if the chain ends up unbound. */ | |
1486 | Lisp_Object | |
a2932990 | 1487 | indirect_function (object) |
62476adc | 1488 | register Lisp_Object object; |
ffd56f97 | 1489 | { |
eb8c3be9 | 1490 | Lisp_Object tortoise, hare; |
ffd56f97 | 1491 | |
eb8c3be9 | 1492 | hare = tortoise = object; |
ffd56f97 JB |
1493 | |
1494 | for (;;) | |
1495 | { | |
e9ebc175 | 1496 | if (!SYMBOLP (hare) || EQ (hare, Qunbound)) |
ffd56f97 JB |
1497 | break; |
1498 | hare = XSYMBOL (hare)->function; | |
e9ebc175 | 1499 | if (!SYMBOLP (hare) || EQ (hare, Qunbound)) |
ffd56f97 JB |
1500 | break; |
1501 | hare = XSYMBOL (hare)->function; | |
1502 | ||
eb8c3be9 | 1503 | tortoise = XSYMBOL (tortoise)->function; |
ffd56f97 | 1504 | |
eb8c3be9 | 1505 | if (EQ (hare, tortoise)) |
ffd56f97 JB |
1506 | Fsignal (Qcyclic_function_indirection, Fcons (object, Qnil)); |
1507 | } | |
1508 | ||
1509 | return hare; | |
1510 | } | |
1511 | ||
1512 | DEFUN ("indirect-function", Findirect_function, Sindirect_function, 1, 1, 0, | |
1513 | "Return the function at the end of OBJECT's function chain.\n\ | |
1514 | If OBJECT is a symbol, follow all function indirections and return the final\n\ | |
1515 | function binding.\n\ | |
1516 | If OBJECT is not a symbol, just return it.\n\ | |
1517 | Signal a void-function error if the final symbol is unbound.\n\ | |
1518 | Signal a cyclic-function-indirection error if there is a loop in the\n\ | |
1519 | function chain of symbols.") | |
1520 | (object) | |
1521 | register Lisp_Object object; | |
1522 | { | |
1523 | Lisp_Object result; | |
1524 | ||
1525 | result = indirect_function (object); | |
1526 | ||
1527 | if (EQ (result, Qunbound)) | |
1528 | return Fsignal (Qvoid_function, Fcons (object, Qnil)); | |
1529 | return result; | |
1530 | } | |
1531 | \f | |
7921925c JB |
1532 | /* Extract and set vector and string elements */ |
1533 | ||
1534 | DEFUN ("aref", Faref, Saref, 2, 2, 0, | |
d9c2a0f2 | 1535 | "Return the element of ARRAY at index IDX.\n\ |
4d276982 | 1536 | ARRAY may be a vector, a string, a char-table, a bool-vector,\n\ |
d9c2a0f2 | 1537 | or a byte-code object. IDX starts at 0.") |
7921925c JB |
1538 | (array, idx) |
1539 | register Lisp_Object array; | |
1540 | Lisp_Object idx; | |
1541 | { | |
1542 | register int idxval; | |
1543 | ||
1544 | CHECK_NUMBER (idx, 1); | |
1545 | idxval = XINT (idx); | |
e9ebc175 | 1546 | if (STRINGP (array)) |
7921925c JB |
1547 | { |
1548 | Lisp_Object val; | |
25638b07 RS |
1549 | int c, idxval_byte; |
1550 | ||
c24e4efe KH |
1551 | if (idxval < 0 || idxval >= XSTRING (array)->size) |
1552 | args_out_of_range (array, idx); | |
25638b07 RS |
1553 | if (! STRING_MULTIBYTE (array)) |
1554 | return make_number ((unsigned char) XSTRING (array)->data[idxval]); | |
1555 | idxval_byte = string_char_to_byte (array, idxval); | |
1556 | ||
1557 | c = STRING_CHAR (&XSTRING (array)->data[idxval_byte], | |
1558 | XSTRING (array)->size_byte - idxval_byte); | |
1559 | return make_number (c); | |
7921925c | 1560 | } |
4d276982 RS |
1561 | else if (BOOL_VECTOR_P (array)) |
1562 | { | |
1563 | int val; | |
4d276982 RS |
1564 | |
1565 | if (idxval < 0 || idxval >= XBOOL_VECTOR (array)->size) | |
1566 | args_out_of_range (array, idx); | |
1567 | ||
68be917d KH |
1568 | val = (unsigned char) XBOOL_VECTOR (array)->data[idxval / BITS_PER_CHAR]; |
1569 | return (val & (1 << (idxval % BITS_PER_CHAR)) ? Qt : Qnil); | |
4d276982 RS |
1570 | } |
1571 | else if (CHAR_TABLE_P (array)) | |
1572 | { | |
1573 | Lisp_Object val; | |
1574 | ||
1575 | if (idxval < 0) | |
1576 | args_out_of_range (array, idx); | |
3a6cf6bd | 1577 | if (idxval < CHAR_TABLE_SINGLE_BYTE_SLOTS) |
8313c4e7 | 1578 | { |
39e16e51 | 1579 | /* For ASCII and 8-bit European characters, the element is |
3a6cf6bd | 1580 | stored in the top table. */ |
8313c4e7 KH |
1581 | val = XCHAR_TABLE (array)->contents[idxval]; |
1582 | if (NILP (val)) | |
1583 | val = XCHAR_TABLE (array)->defalt; | |
1584 | while (NILP (val)) /* Follow parents until we find some value. */ | |
1585 | { | |
1586 | array = XCHAR_TABLE (array)->parent; | |
1587 | if (NILP (array)) | |
1588 | return Qnil; | |
1589 | val = XCHAR_TABLE (array)->contents[idxval]; | |
1590 | if (NILP (val)) | |
1591 | val = XCHAR_TABLE (array)->defalt; | |
1592 | } | |
1593 | return val; | |
1594 | } | |
4d276982 RS |
1595 | else |
1596 | { | |
39e16e51 KH |
1597 | int code[4], i; |
1598 | Lisp_Object sub_table; | |
8313c4e7 | 1599 | |
39e16e51 KH |
1600 | SPLIT_NON_ASCII_CHAR (idxval, code[0], code[1], code[2]); |
1601 | if (code[0] != CHARSET_COMPOSITION) | |
1602 | { | |
1603 | if (code[1] < 32) code[1] = -1; | |
1604 | else if (code[2] < 32) code[2] = -1; | |
1605 | } | |
1606 | /* Here, the possible range of CODE[0] (== charset ID) is | |
1607 | 128..MAX_CHARSET. Since the top level char table contains | |
1608 | data for multibyte characters after 256th element, we must | |
1609 | increment CODE[0] by 128 to get a correct index. */ | |
1610 | code[0] += 128; | |
1611 | code[3] = -1; /* anchor */ | |
4d276982 RS |
1612 | |
1613 | try_parent_char_table: | |
39e16e51 KH |
1614 | sub_table = array; |
1615 | for (i = 0; code[i] >= 0; i++) | |
4d276982 | 1616 | { |
39e16e51 KH |
1617 | val = XCHAR_TABLE (sub_table)->contents[code[i]]; |
1618 | if (SUB_CHAR_TABLE_P (val)) | |
1619 | sub_table = val; | |
1620 | else | |
8313c4e7 | 1621 | { |
39e16e51 KH |
1622 | if (NILP (val)) |
1623 | val = XCHAR_TABLE (sub_table)->defalt; | |
1624 | if (NILP (val)) | |
1625 | { | |
1626 | array = XCHAR_TABLE (array)->parent; | |
1627 | if (!NILP (array)) | |
1628 | goto try_parent_char_table; | |
1629 | } | |
1630 | return val; | |
8313c4e7 | 1631 | } |
4d276982 | 1632 | } |
39e16e51 KH |
1633 | /* Here, VAL is a sub char table. We try the default value |
1634 | and parent. */ | |
1635 | val = XCHAR_TABLE (val)->defalt; | |
8313c4e7 | 1636 | if (NILP (val)) |
4d276982 RS |
1637 | { |
1638 | array = XCHAR_TABLE (array)->parent; | |
39e16e51 KH |
1639 | if (!NILP (array)) |
1640 | goto try_parent_char_table; | |
4d276982 | 1641 | } |
4d276982 RS |
1642 | return val; |
1643 | } | |
4d276982 | 1644 | } |
7921925c | 1645 | else |
c24e4efe | 1646 | { |
7f358972 RS |
1647 | int size; |
1648 | if (VECTORP (array)) | |
1649 | size = XVECTOR (array)->size; | |
1650 | else if (COMPILEDP (array)) | |
1651 | size = XVECTOR (array)->size & PSEUDOVECTOR_SIZE_MASK; | |
1652 | else | |
1653 | wrong_type_argument (Qarrayp, array); | |
1654 | ||
1655 | if (idxval < 0 || idxval >= size) | |
c24e4efe KH |
1656 | args_out_of_range (array, idx); |
1657 | return XVECTOR (array)->contents[idxval]; | |
1658 | } | |
7921925c JB |
1659 | } |
1660 | ||
1661 | DEFUN ("aset", Faset, Saset, 3, 3, 0, | |
73d40355 | 1662 | "Store into the element of ARRAY at index IDX the value NEWELT.\n\ |
9346f507 RS |
1663 | ARRAY may be a vector, a string, a char-table or a bool-vector.\n\ |
1664 | IDX starts at 0.") | |
7921925c JB |
1665 | (array, idx, newelt) |
1666 | register Lisp_Object array; | |
1667 | Lisp_Object idx, newelt; | |
1668 | { | |
1669 | register int idxval; | |
1670 | ||
1671 | CHECK_NUMBER (idx, 1); | |
1672 | idxval = XINT (idx); | |
4d276982 RS |
1673 | if (!VECTORP (array) && !STRINGP (array) && !BOOL_VECTOR_P (array) |
1674 | && ! CHAR_TABLE_P (array)) | |
7921925c | 1675 | array = wrong_type_argument (Qarrayp, array); |
7921925c JB |
1676 | CHECK_IMPURE (array); |
1677 | ||
e9ebc175 | 1678 | if (VECTORP (array)) |
c24e4efe KH |
1679 | { |
1680 | if (idxval < 0 || idxval >= XVECTOR (array)->size) | |
1681 | args_out_of_range (array, idx); | |
1682 | XVECTOR (array)->contents[idxval] = newelt; | |
1683 | } | |
4d276982 RS |
1684 | else if (BOOL_VECTOR_P (array)) |
1685 | { | |
1686 | int val; | |
4d276982 RS |
1687 | |
1688 | if (idxval < 0 || idxval >= XBOOL_VECTOR (array)->size) | |
1689 | args_out_of_range (array, idx); | |
1690 | ||
68be917d | 1691 | val = (unsigned char) XBOOL_VECTOR (array)->data[idxval / BITS_PER_CHAR]; |
4d276982 RS |
1692 | |
1693 | if (! NILP (newelt)) | |
68be917d | 1694 | val |= 1 << (idxval % BITS_PER_CHAR); |
4d276982 | 1695 | else |
68be917d KH |
1696 | val &= ~(1 << (idxval % BITS_PER_CHAR)); |
1697 | XBOOL_VECTOR (array)->data[idxval / BITS_PER_CHAR] = val; | |
4d276982 RS |
1698 | } |
1699 | else if (CHAR_TABLE_P (array)) | |
1700 | { | |
1701 | Lisp_Object val; | |
1702 | ||
1703 | if (idxval < 0) | |
1704 | args_out_of_range (array, idx); | |
3a6cf6bd | 1705 | if (idxval < CHAR_TABLE_SINGLE_BYTE_SLOTS) |
8313c4e7 | 1706 | XCHAR_TABLE (array)->contents[idxval] = newelt; |
4d276982 RS |
1707 | else |
1708 | { | |
39e16e51 | 1709 | int code[4], i; |
8313c4e7 | 1710 | Lisp_Object val; |
4d276982 | 1711 | |
39e16e51 KH |
1712 | SPLIT_NON_ASCII_CHAR (idxval, code[0], code[1], code[2]); |
1713 | if (code[0] != CHARSET_COMPOSITION) | |
1714 | { | |
1715 | if (code[1] < 32) code[1] = -1; | |
1716 | else if (code[2] < 32) code[2] = -1; | |
1717 | } | |
1718 | /* See the comment of the corresponding part in Faref. */ | |
1719 | code[0] += 128; | |
1720 | code[3] = -1; /* anchor */ | |
1721 | for (i = 0; code[i + 1] >= 0; i++) | |
8313c4e7 | 1722 | { |
39e16e51 KH |
1723 | val = XCHAR_TABLE (array)->contents[code[i]]; |
1724 | if (SUB_CHAR_TABLE_P (val)) | |
8313c4e7 KH |
1725 | array = val; |
1726 | else | |
3c8fccc3 RS |
1727 | { |
1728 | Lisp_Object temp; | |
1729 | ||
1730 | /* VAL is a leaf. Create a sub char table with the | |
1731 | default value VAL or XCHAR_TABLE (array)->defalt | |
1732 | and look into it. */ | |
1733 | ||
1734 | temp = make_sub_char_table (NILP (val) | |
1735 | ? XCHAR_TABLE (array)->defalt | |
1736 | : val); | |
1737 | XCHAR_TABLE (array)->contents[code[i]] = temp; | |
1738 | array = temp; | |
1739 | } | |
8313c4e7 | 1740 | } |
39e16e51 | 1741 | XCHAR_TABLE (array)->contents[code[i]] = newelt; |
4d276982 | 1742 | } |
4d276982 | 1743 | } |
25638b07 RS |
1744 | else if (STRING_MULTIBYTE (array)) |
1745 | { | |
ca2f68f8 | 1746 | Lisp_Object new_len; |
25638b07 | 1747 | int c, idxval_byte, actual_len; |
ca2f68f8 | 1748 | unsigned char *p, *str; |
25638b07 RS |
1749 | |
1750 | if (idxval < 0 || idxval >= XSTRING (array)->size) | |
1751 | args_out_of_range (array, idx); | |
1752 | ||
1753 | idxval_byte = string_char_to_byte (array, idxval); | |
ca2f68f8 | 1754 | p = &XSTRING (array)->data[idxval_byte]; |
25638b07 | 1755 | |
ca2f68f8 KH |
1756 | actual_len |
1757 | = MULTIBYTE_FORM_LENGTH (p, XSTRING (array)->size_byte - idxval_byte); | |
1758 | new_len = Fchar_bytes (newelt); | |
1759 | if (actual_len != XINT (new_len)) | |
1760 | error ("Attempt to change byte length of a string"); | |
25638b07 | 1761 | |
ca2f68f8 KH |
1762 | CHAR_STRING (XINT (newelt), p, str); |
1763 | if (p != str) | |
1764 | bcopy (str, p, actual_len); | |
25638b07 | 1765 | } |
7921925c JB |
1766 | else |
1767 | { | |
c24e4efe KH |
1768 | if (idxval < 0 || idxval >= XSTRING (array)->size) |
1769 | args_out_of_range (array, idx); | |
7921925c JB |
1770 | CHECK_NUMBER (newelt, 2); |
1771 | XSTRING (array)->data[idxval] = XINT (newelt); | |
1772 | } | |
1773 | ||
1774 | return newelt; | |
1775 | } | |
7921925c JB |
1776 | \f |
1777 | /* Arithmetic functions */ | |
1778 | ||
1779 | enum comparison { equal, notequal, less, grtr, less_or_equal, grtr_or_equal }; | |
1780 | ||
1781 | Lisp_Object | |
1782 | arithcompare (num1, num2, comparison) | |
1783 | Lisp_Object num1, num2; | |
1784 | enum comparison comparison; | |
1785 | { | |
1786 | double f1, f2; | |
1787 | int floatp = 0; | |
1788 | ||
1789 | #ifdef LISP_FLOAT_TYPE | |
1790 | CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (num1, 0); | |
1791 | CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (num2, 0); | |
1792 | ||
e9ebc175 | 1793 | if (FLOATP (num1) || FLOATP (num2)) |
7921925c JB |
1794 | { |
1795 | floatp = 1; | |
e9ebc175 KH |
1796 | f1 = (FLOATP (num1)) ? XFLOAT (num1)->data : XINT (num1); |
1797 | f2 = (FLOATP (num2)) ? XFLOAT (num2)->data : XINT (num2); | |
7921925c JB |
1798 | } |
1799 | #else | |
1800 | CHECK_NUMBER_COERCE_MARKER (num1, 0); | |
1801 | CHECK_NUMBER_COERCE_MARKER (num2, 0); | |
1802 | #endif /* LISP_FLOAT_TYPE */ | |
1803 | ||
1804 | switch (comparison) | |
1805 | { | |
1806 | case equal: | |
1807 | if (floatp ? f1 == f2 : XINT (num1) == XINT (num2)) | |
1808 | return Qt; | |
1809 | return Qnil; | |
1810 | ||
1811 | case notequal: | |
1812 | if (floatp ? f1 != f2 : XINT (num1) != XINT (num2)) | |
1813 | return Qt; | |
1814 | return Qnil; | |
1815 | ||
1816 | case less: | |
1817 | if (floatp ? f1 < f2 : XINT (num1) < XINT (num2)) | |
1818 | return Qt; | |
1819 | return Qnil; | |
1820 | ||
1821 | case less_or_equal: | |
1822 | if (floatp ? f1 <= f2 : XINT (num1) <= XINT (num2)) | |
1823 | return Qt; | |
1824 | return Qnil; | |
1825 | ||
1826 | case grtr: | |
1827 | if (floatp ? f1 > f2 : XINT (num1) > XINT (num2)) | |
1828 | return Qt; | |
1829 | return Qnil; | |
1830 | ||
1831 | case grtr_or_equal: | |
1832 | if (floatp ? f1 >= f2 : XINT (num1) >= XINT (num2)) | |
1833 | return Qt; | |
1834 | return Qnil; | |
25e40a4b JB |
1835 | |
1836 | default: | |
1837 | abort (); | |
7921925c JB |
1838 | } |
1839 | } | |
1840 | ||
1841 | DEFUN ("=", Feqlsign, Seqlsign, 2, 2, 0, | |
c2124165 | 1842 | "Return t if two args, both numbers or markers, are equal.") |
7921925c JB |
1843 | (num1, num2) |
1844 | register Lisp_Object num1, num2; | |
1845 | { | |
1846 | return arithcompare (num1, num2, equal); | |
1847 | } | |
1848 | ||
1849 | DEFUN ("<", Flss, Slss, 2, 2, 0, | |
c2124165 | 1850 | "Return t if first arg is less than second arg. Both must be numbers or markers.") |
7921925c JB |
1851 | (num1, num2) |
1852 | register Lisp_Object num1, num2; | |
1853 | { | |
1854 | return arithcompare (num1, num2, less); | |
1855 | } | |
1856 | ||
1857 | DEFUN (">", Fgtr, Sgtr, 2, 2, 0, | |
c2124165 | 1858 | "Return t if first arg is greater than second arg. Both must be numbers or markers.") |
7921925c JB |
1859 | (num1, num2) |
1860 | register Lisp_Object num1, num2; | |
1861 | { | |
1862 | return arithcompare (num1, num2, grtr); | |
1863 | } | |
1864 | ||
1865 | DEFUN ("<=", Fleq, Sleq, 2, 2, 0, | |
c2124165 | 1866 | "Return t if first arg is less than or equal to second arg.\n\ |
7921925c JB |
1867 | Both must be numbers or markers.") |
1868 | (num1, num2) | |
1869 | register Lisp_Object num1, num2; | |
1870 | { | |
1871 | return arithcompare (num1, num2, less_or_equal); | |
1872 | } | |
1873 | ||
1874 | DEFUN (">=", Fgeq, Sgeq, 2, 2, 0, | |
c2124165 | 1875 | "Return t if first arg is greater than or equal to second arg.\n\ |
7921925c JB |
1876 | Both must be numbers or markers.") |
1877 | (num1, num2) | |
1878 | register Lisp_Object num1, num2; | |
1879 | { | |
1880 | return arithcompare (num1, num2, grtr_or_equal); | |
1881 | } | |
1882 | ||
1883 | DEFUN ("/=", Fneq, Sneq, 2, 2, 0, | |
c2124165 | 1884 | "Return t if first arg is not equal to second arg. Both must be numbers or markers.") |
7921925c JB |
1885 | (num1, num2) |
1886 | register Lisp_Object num1, num2; | |
1887 | { | |
1888 | return arithcompare (num1, num2, notequal); | |
1889 | } | |
1890 | ||
c2124165 | 1891 | DEFUN ("zerop", Fzerop, Szerop, 1, 1, 0, "Return t if NUMBER is zero.") |
d9c2a0f2 EN |
1892 | (number) |
1893 | register Lisp_Object number; | |
7921925c JB |
1894 | { |
1895 | #ifdef LISP_FLOAT_TYPE | |
d9c2a0f2 | 1896 | CHECK_NUMBER_OR_FLOAT (number, 0); |
7921925c | 1897 | |
d9c2a0f2 | 1898 | if (FLOATP (number)) |
7921925c | 1899 | { |
d9c2a0f2 | 1900 | if (XFLOAT(number)->data == 0.0) |
7921925c JB |
1901 | return Qt; |
1902 | return Qnil; | |
1903 | } | |
1904 | #else | |
d9c2a0f2 | 1905 | CHECK_NUMBER (number, 0); |
7921925c JB |
1906 | #endif /* LISP_FLOAT_TYPE */ |
1907 | ||
d9c2a0f2 | 1908 | if (!XINT (number)) |
7921925c JB |
1909 | return Qt; |
1910 | return Qnil; | |
1911 | } | |
1912 | \f | |
34f4f6c6 | 1913 | /* Convert between long values and pairs of Lisp integers. */ |
51cf3e31 JB |
1914 | |
1915 | Lisp_Object | |
1916 | long_to_cons (i) | |
1917 | unsigned long i; | |
1918 | { | |
1919 | unsigned int top = i >> 16; | |
1920 | unsigned int bot = i & 0xFFFF; | |
1921 | if (top == 0) | |
1922 | return make_number (bot); | |
b42cfa11 | 1923 | if (top == (unsigned long)-1 >> 16) |
51cf3e31 JB |
1924 | return Fcons (make_number (-1), make_number (bot)); |
1925 | return Fcons (make_number (top), make_number (bot)); | |
1926 | } | |
1927 | ||
1928 | unsigned long | |
1929 | cons_to_long (c) | |
1930 | Lisp_Object c; | |
1931 | { | |
878a80cc | 1932 | Lisp_Object top, bot; |
51cf3e31 JB |
1933 | if (INTEGERP (c)) |
1934 | return XINT (c); | |
1935 | top = XCONS (c)->car; | |
1936 | bot = XCONS (c)->cdr; | |
1937 | if (CONSP (bot)) | |
1938 | bot = XCONS (bot)->car; | |
1939 | return ((XINT (top) << 16) | XINT (bot)); | |
1940 | } | |
1941 | \f | |
f2980264 | 1942 | DEFUN ("number-to-string", Fnumber_to_string, Snumber_to_string, 1, 1, 0, |
d9c2a0f2 | 1943 | "Convert NUMBER to a string by printing it in decimal.\n\ |
25e40a4b | 1944 | Uses a minus sign if negative.\n\ |
d9c2a0f2 EN |
1945 | NUMBER may be an integer or a floating point number.") |
1946 | (number) | |
1947 | Lisp_Object number; | |
7921925c | 1948 | { |
6030ce64 | 1949 | char buffer[VALBITS]; |
7921925c JB |
1950 | |
1951 | #ifndef LISP_FLOAT_TYPE | |
d9c2a0f2 | 1952 | CHECK_NUMBER (number, 0); |
7921925c | 1953 | #else |
d9c2a0f2 | 1954 | CHECK_NUMBER_OR_FLOAT (number, 0); |
7921925c | 1955 | |
d9c2a0f2 | 1956 | if (FLOATP (number)) |
7921925c JB |
1957 | { |
1958 | char pigbuf[350]; /* see comments in float_to_string */ | |
1959 | ||
d9c2a0f2 | 1960 | float_to_string (pigbuf, XFLOAT(number)->data); |
7403b5c8 | 1961 | return build_string (pigbuf); |
7921925c JB |
1962 | } |
1963 | #endif /* LISP_FLOAT_TYPE */ | |
1964 | ||
e6c82a8d | 1965 | if (sizeof (int) == sizeof (EMACS_INT)) |
d9c2a0f2 | 1966 | sprintf (buffer, "%d", XINT (number)); |
e6c82a8d | 1967 | else if (sizeof (long) == sizeof (EMACS_INT)) |
d9c2a0f2 | 1968 | sprintf (buffer, "%ld", XINT (number)); |
e6c82a8d RS |
1969 | else |
1970 | abort (); | |
7921925c JB |
1971 | return build_string (buffer); |
1972 | } | |
1973 | ||
3883fbeb RS |
1974 | INLINE static int |
1975 | digit_to_number (character, base) | |
1976 | int character, base; | |
1977 | { | |
1978 | int digit; | |
1979 | ||
1980 | if (character >= '0' && character <= '9') | |
1981 | digit = character - '0'; | |
1982 | else if (character >= 'a' && character <= 'z') | |
1983 | digit = character - 'a' + 10; | |
1984 | else if (character >= 'A' && character <= 'Z') | |
1985 | digit = character - 'A' + 10; | |
1986 | else | |
1987 | return -1; | |
1988 | ||
1989 | if (digit >= base) | |
1990 | return -1; | |
1991 | else | |
1992 | return digit; | |
1993 | } | |
1994 | ||
1995 | DEFUN ("string-to-number", Fstring_to_number, Sstring_to_number, 1, 2, 0, | |
25e40a4b | 1996 | "Convert STRING to a number by parsing it as a decimal number.\n\ |
1c1c17eb | 1997 | This parses both integers and floating point numbers.\n\ |
3883fbeb RS |
1998 | It ignores leading spaces and tabs.\n\ |
1999 | \n\ | |
2000 | If BASE, interpret STRING as a number in that base. If BASE isn't\n\ | |
2001 | present, base 10 is used. BASE must be between 2 and 16 (inclusive).\n\ | |
2002 | Floating point numbers always use base 10.") | |
2003 | (string, base) | |
2004 | register Lisp_Object string, base; | |
7921925c | 2005 | { |
3883fbeb RS |
2006 | register unsigned char *p; |
2007 | register int b, digit, v = 0; | |
2008 | int negative = 1; | |
25e40a4b | 2009 | |
d9c2a0f2 | 2010 | CHECK_STRING (string, 0); |
7921925c | 2011 | |
3883fbeb RS |
2012 | if (NILP (base)) |
2013 | b = 10; | |
2014 | else | |
2015 | { | |
2016 | CHECK_NUMBER (base, 1); | |
2017 | b = XINT (base); | |
2018 | if (b < 2 || b > 16) | |
2019 | Fsignal (Qargs_out_of_range, Fcons (base, Qnil)); | |
2020 | } | |
2021 | ||
d9c2a0f2 | 2022 | p = XSTRING (string)->data; |
25e40a4b JB |
2023 | |
2024 | /* Skip any whitespace at the front of the number. Some versions of | |
2025 | atoi do this anyway, so we might as well make Emacs lisp consistent. */ | |
0a3e4d65 | 2026 | while (*p == ' ' || *p == '\t') |
25e40a4b JB |
2027 | p++; |
2028 | ||
3883fbeb RS |
2029 | if (*p == '-') |
2030 | { | |
2031 | negative = -1; | |
2032 | p++; | |
2033 | } | |
2034 | else if (*p == '+') | |
2035 | p++; | |
2036 | ||
7921925c | 2037 | #ifdef LISP_FLOAT_TYPE |
25e40a4b | 2038 | if (isfloat_string (p)) |
142d9135 | 2039 | return make_float (negative * atof (p)); |
7921925c JB |
2040 | #endif /* LISP_FLOAT_TYPE */ |
2041 | ||
3883fbeb RS |
2042 | while (1) |
2043 | { | |
2044 | int digit = digit_to_number (*p++, b); | |
2045 | if (digit < 0) | |
2046 | break; | |
2047 | v = v * b + digit; | |
2048 | } | |
2049 | ||
2050 | return make_number (negative * v); | |
7921925c | 2051 | } |
3883fbeb | 2052 | |
7403b5c8 | 2053 | \f |
7921925c JB |
2054 | enum arithop |
2055 | { Aadd, Asub, Amult, Adiv, Alogand, Alogior, Alogxor, Amax, Amin }; | |
2056 | ||
b06faa91 | 2057 | extern Lisp_Object float_arith_driver (); |
ad8d56b9 | 2058 | extern Lisp_Object fmod_float (); |
b06faa91 | 2059 | |
7921925c | 2060 | Lisp_Object |
87fbf902 | 2061 | arith_driver (code, nargs, args) |
7921925c JB |
2062 | enum arithop code; |
2063 | int nargs; | |
2064 | register Lisp_Object *args; | |
2065 | { | |
2066 | register Lisp_Object val; | |
2067 | register int argnum; | |
5260234d RS |
2068 | register EMACS_INT accum; |
2069 | register EMACS_INT next; | |
7921925c | 2070 | |
0220c518 | 2071 | switch (SWITCH_ENUM_CAST (code)) |
7921925c JB |
2072 | { |
2073 | case Alogior: | |
2074 | case Alogxor: | |
2075 | case Aadd: | |
2076 | case Asub: | |
2077 | accum = 0; break; | |
2078 | case Amult: | |
2079 | accum = 1; break; | |
2080 | case Alogand: | |
2081 | accum = -1; break; | |
2082 | } | |
2083 | ||
2084 | for (argnum = 0; argnum < nargs; argnum++) | |
2085 | { | |
2086 | val = args[argnum]; /* using args[argnum] as argument to CHECK_NUMBER_... */ | |
2087 | #ifdef LISP_FLOAT_TYPE | |
2088 | CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (val, argnum); | |
2089 | ||
e9ebc175 | 2090 | if (FLOATP (val)) /* time to do serious math */ |
7921925c JB |
2091 | return (float_arith_driver ((double) accum, argnum, code, |
2092 | nargs, args)); | |
2093 | #else | |
2094 | CHECK_NUMBER_COERCE_MARKER (val, argnum); | |
2095 | #endif /* LISP_FLOAT_TYPE */ | |
2096 | args[argnum] = val; /* runs into a compiler bug. */ | |
2097 | next = XINT (args[argnum]); | |
0220c518 | 2098 | switch (SWITCH_ENUM_CAST (code)) |
7921925c JB |
2099 | { |
2100 | case Aadd: accum += next; break; | |
2101 | case Asub: | |
2102 | if (!argnum && nargs != 1) | |
2103 | next = - next; | |
2104 | accum -= next; | |
2105 | break; | |
2106 | case Amult: accum *= next; break; | |
2107 | case Adiv: | |
2108 | if (!argnum) accum = next; | |
87fbf902 RS |
2109 | else |
2110 | { | |
2111 | if (next == 0) | |
2112 | Fsignal (Qarith_error, Qnil); | |
2113 | accum /= next; | |
2114 | } | |
7921925c JB |
2115 | break; |
2116 | case Alogand: accum &= next; break; | |
2117 | case Alogior: accum |= next; break; | |
2118 | case Alogxor: accum ^= next; break; | |
2119 | case Amax: if (!argnum || next > accum) accum = next; break; | |
2120 | case Amin: if (!argnum || next < accum) accum = next; break; | |
2121 | } | |
2122 | } | |
2123 | ||
f187f1f7 | 2124 | XSETINT (val, accum); |
7921925c JB |
2125 | return val; |
2126 | } | |
2127 | ||
1a2f2d33 KH |
2128 | #undef isnan |
2129 | #define isnan(x) ((x) != (x)) | |
2130 | ||
bc1c9d7e PE |
2131 | #ifdef LISP_FLOAT_TYPE |
2132 | ||
7921925c JB |
2133 | Lisp_Object |
2134 | float_arith_driver (accum, argnum, code, nargs, args) | |
2135 | double accum; | |
2136 | register int argnum; | |
2137 | enum arithop code; | |
2138 | int nargs; | |
2139 | register Lisp_Object *args; | |
2140 | { | |
2141 | register Lisp_Object val; | |
2142 | double next; | |
7403b5c8 | 2143 | |
7921925c JB |
2144 | for (; argnum < nargs; argnum++) |
2145 | { | |
2146 | val = args[argnum]; /* using args[argnum] as argument to CHECK_NUMBER_... */ | |
2147 | CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (val, argnum); | |
2148 | ||
e9ebc175 | 2149 | if (FLOATP (val)) |
7921925c JB |
2150 | { |
2151 | next = XFLOAT (val)->data; | |
2152 | } | |
2153 | else | |
2154 | { | |
2155 | args[argnum] = val; /* runs into a compiler bug. */ | |
2156 | next = XINT (args[argnum]); | |
2157 | } | |
0220c518 | 2158 | switch (SWITCH_ENUM_CAST (code)) |
7921925c JB |
2159 | { |
2160 | case Aadd: | |
2161 | accum += next; | |
2162 | break; | |
2163 | case Asub: | |
2164 | if (!argnum && nargs != 1) | |
2165 | next = - next; | |
2166 | accum -= next; | |
2167 | break; | |
2168 | case Amult: | |
2169 | accum *= next; | |
2170 | break; | |
2171 | case Adiv: | |
2172 | if (!argnum) | |
2173 | accum = next; | |
2174 | else | |
87fbf902 | 2175 | { |
ad8d56b9 | 2176 | if (! IEEE_FLOATING_POINT && next == 0) |
87fbf902 RS |
2177 | Fsignal (Qarith_error, Qnil); |
2178 | accum /= next; | |
2179 | } | |
7921925c JB |
2180 | break; |
2181 | case Alogand: | |
2182 | case Alogior: | |
2183 | case Alogxor: | |
2184 | return wrong_type_argument (Qinteger_or_marker_p, val); | |
2185 | case Amax: | |
1a2f2d33 | 2186 | if (!argnum || isnan (next) || next > accum) |
7921925c JB |
2187 | accum = next; |
2188 | break; | |
2189 | case Amin: | |
1a2f2d33 | 2190 | if (!argnum || isnan (next) || next < accum) |
7921925c JB |
2191 | accum = next; |
2192 | break; | |
2193 | } | |
2194 | } | |
2195 | ||
2196 | return make_float (accum); | |
2197 | } | |
2198 | #endif /* LISP_FLOAT_TYPE */ | |
2199 | ||
2200 | DEFUN ("+", Fplus, Splus, 0, MANY, 0, | |
2201 | "Return sum of any number of arguments, which are numbers or markers.") | |
2202 | (nargs, args) | |
2203 | int nargs; | |
2204 | Lisp_Object *args; | |
2205 | { | |
2206 | return arith_driver (Aadd, nargs, args); | |
2207 | } | |
2208 | ||
2209 | DEFUN ("-", Fminus, Sminus, 0, MANY, 0, | |
2210 | "Negate number or subtract numbers or markers.\n\ | |
2211 | With one arg, negates it. With more than one arg,\n\ | |
2212 | subtracts all but the first from the first.") | |
2213 | (nargs, args) | |
2214 | int nargs; | |
2215 | Lisp_Object *args; | |
2216 | { | |
2217 | return arith_driver (Asub, nargs, args); | |
2218 | } | |
2219 | ||
2220 | DEFUN ("*", Ftimes, Stimes, 0, MANY, 0, | |
2221 | "Returns product of any number of arguments, which are numbers or markers.") | |
2222 | (nargs, args) | |
2223 | int nargs; | |
2224 | Lisp_Object *args; | |
2225 | { | |
2226 | return arith_driver (Amult, nargs, args); | |
2227 | } | |
2228 | ||
2229 | DEFUN ("/", Fquo, Squo, 2, MANY, 0, | |
2230 | "Returns first argument divided by all the remaining arguments.\n\ | |
2231 | The arguments must be numbers or markers.") | |
2232 | (nargs, args) | |
2233 | int nargs; | |
2234 | Lisp_Object *args; | |
2235 | { | |
2236 | return arith_driver (Adiv, nargs, args); | |
2237 | } | |
2238 | ||
2239 | DEFUN ("%", Frem, Srem, 2, 2, 0, | |
d9c2a0f2 | 2240 | "Returns remainder of X divided by Y.\n\ |
aa29f9b9 | 2241 | Both must be integers or markers.") |
d9c2a0f2 EN |
2242 | (x, y) |
2243 | register Lisp_Object x, y; | |
7921925c JB |
2244 | { |
2245 | Lisp_Object val; | |
2246 | ||
d9c2a0f2 EN |
2247 | CHECK_NUMBER_COERCE_MARKER (x, 0); |
2248 | CHECK_NUMBER_COERCE_MARKER (y, 1); | |
7921925c | 2249 | |
d9c2a0f2 | 2250 | if (XFASTINT (y) == 0) |
87fbf902 RS |
2251 | Fsignal (Qarith_error, Qnil); |
2252 | ||
d9c2a0f2 | 2253 | XSETINT (val, XINT (x) % XINT (y)); |
7921925c JB |
2254 | return val; |
2255 | } | |
2256 | ||
1d66a5fa KH |
2257 | #ifndef HAVE_FMOD |
2258 | double | |
2259 | fmod (f1, f2) | |
2260 | double f1, f2; | |
2261 | { | |
bc1c9d7e PE |
2262 | double r = f1; |
2263 | ||
fa43b1e8 KH |
2264 | if (f2 < 0.0) |
2265 | f2 = -f2; | |
bc1c9d7e PE |
2266 | |
2267 | /* If the magnitude of the result exceeds that of the divisor, or | |
2268 | the sign of the result does not agree with that of the dividend, | |
2269 | iterate with the reduced value. This does not yield a | |
2270 | particularly accurate result, but at least it will be in the | |
2271 | range promised by fmod. */ | |
2272 | do | |
2273 | r -= f2 * floor (r / f2); | |
2274 | while (f2 <= (r < 0 ? -r : r) || ((r < 0) != (f1 < 0) && ! isnan (r))); | |
2275 | ||
2276 | return r; | |
1d66a5fa KH |
2277 | } |
2278 | #endif /* ! HAVE_FMOD */ | |
2279 | ||
44fa9da5 PE |
2280 | DEFUN ("mod", Fmod, Smod, 2, 2, 0, |
2281 | "Returns X modulo Y.\n\ | |
2282 | The result falls between zero (inclusive) and Y (exclusive).\n\ | |
2283 | Both X and Y must be numbers or markers.") | |
d9c2a0f2 EN |
2284 | (x, y) |
2285 | register Lisp_Object x, y; | |
44fa9da5 PE |
2286 | { |
2287 | Lisp_Object val; | |
5260234d | 2288 | EMACS_INT i1, i2; |
44fa9da5 PE |
2289 | |
2290 | #ifdef LISP_FLOAT_TYPE | |
d9c2a0f2 EN |
2291 | CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (x, 0); |
2292 | CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (y, 1); | |
44fa9da5 | 2293 | |
d9c2a0f2 | 2294 | if (FLOATP (x) || FLOATP (y)) |
ad8d56b9 PE |
2295 | return fmod_float (x, y); |
2296 | ||
44fa9da5 | 2297 | #else /* not LISP_FLOAT_TYPE */ |
d9c2a0f2 EN |
2298 | CHECK_NUMBER_COERCE_MARKER (x, 0); |
2299 | CHECK_NUMBER_COERCE_MARKER (y, 1); | |
44fa9da5 PE |
2300 | #endif /* not LISP_FLOAT_TYPE */ |
2301 | ||
d9c2a0f2 EN |
2302 | i1 = XINT (x); |
2303 | i2 = XINT (y); | |
44fa9da5 PE |
2304 | |
2305 | if (i2 == 0) | |
2306 | Fsignal (Qarith_error, Qnil); | |
7403b5c8 | 2307 | |
44fa9da5 PE |
2308 | i1 %= i2; |
2309 | ||
2310 | /* If the "remainder" comes out with the wrong sign, fix it. */ | |
04f7ec69 | 2311 | if (i2 < 0 ? i1 > 0 : i1 < 0) |
44fa9da5 PE |
2312 | i1 += i2; |
2313 | ||
f187f1f7 | 2314 | XSETINT (val, i1); |
44fa9da5 PE |
2315 | return val; |
2316 | } | |
2317 | ||
7921925c JB |
2318 | DEFUN ("max", Fmax, Smax, 1, MANY, 0, |
2319 | "Return largest of all the arguments (which must be numbers or markers).\n\ | |
2320 | The value is always a number; markers are converted to numbers.") | |
2321 | (nargs, args) | |
2322 | int nargs; | |
2323 | Lisp_Object *args; | |
2324 | { | |
2325 | return arith_driver (Amax, nargs, args); | |
2326 | } | |
2327 | ||
2328 | DEFUN ("min", Fmin, Smin, 1, MANY, 0, | |
2329 | "Return smallest of all the arguments (which must be numbers or markers).\n\ | |
2330 | The value is always a number; markers are converted to numbers.") | |
2331 | (nargs, args) | |
2332 | int nargs; | |
2333 | Lisp_Object *args; | |
2334 | { | |
2335 | return arith_driver (Amin, nargs, args); | |
2336 | } | |
2337 | ||
2338 | DEFUN ("logand", Flogand, Slogand, 0, MANY, 0, | |
2339 | "Return bitwise-and of all the arguments.\n\ | |
2340 | Arguments may be integers, or markers converted to integers.") | |
2341 | (nargs, args) | |
2342 | int nargs; | |
2343 | Lisp_Object *args; | |
2344 | { | |
2345 | return arith_driver (Alogand, nargs, args); | |
2346 | } | |
2347 | ||
2348 | DEFUN ("logior", Flogior, Slogior, 0, MANY, 0, | |
2349 | "Return bitwise-or of all the arguments.\n\ | |
2350 | Arguments may be integers, or markers converted to integers.") | |
2351 | (nargs, args) | |
2352 | int nargs; | |
2353 | Lisp_Object *args; | |
2354 | { | |
2355 | return arith_driver (Alogior, nargs, args); | |
2356 | } | |
2357 | ||
2358 | DEFUN ("logxor", Flogxor, Slogxor, 0, MANY, 0, | |
2359 | "Return bitwise-exclusive-or of all the arguments.\n\ | |
2360 | Arguments may be integers, or markers converted to integers.") | |
2361 | (nargs, args) | |
2362 | int nargs; | |
2363 | Lisp_Object *args; | |
2364 | { | |
2365 | return arith_driver (Alogxor, nargs, args); | |
2366 | } | |
2367 | ||
2368 | DEFUN ("ash", Fash, Sash, 2, 2, 0, | |
2369 | "Return VALUE with its bits shifted left by COUNT.\n\ | |
2370 | If COUNT is negative, shifting is actually to the right.\n\ | |
2371 | In this case, the sign bit is duplicated.") | |
3b9f7964 RS |
2372 | (value, count) |
2373 | register Lisp_Object value, count; | |
7921925c JB |
2374 | { |
2375 | register Lisp_Object val; | |
2376 | ||
3d9652eb RS |
2377 | CHECK_NUMBER (value, 0); |
2378 | CHECK_NUMBER (count, 1); | |
7921925c | 2379 | |
3d9652eb RS |
2380 | if (XINT (count) > 0) |
2381 | XSETINT (val, XINT (value) << XFASTINT (count)); | |
7921925c | 2382 | else |
3d9652eb | 2383 | XSETINT (val, XINT (value) >> -XINT (count)); |
7921925c JB |
2384 | return val; |
2385 | } | |
2386 | ||
2387 | DEFUN ("lsh", Flsh, Slsh, 2, 2, 0, | |
2388 | "Return VALUE with its bits shifted left by COUNT.\n\ | |
2389 | If COUNT is negative, shifting is actually to the right.\n\ | |
2390 | In this case, zeros are shifted in on the left.") | |
3d9652eb RS |
2391 | (value, count) |
2392 | register Lisp_Object value, count; | |
7921925c JB |
2393 | { |
2394 | register Lisp_Object val; | |
2395 | ||
3d9652eb RS |
2396 | CHECK_NUMBER (value, 0); |
2397 | CHECK_NUMBER (count, 1); | |
7921925c | 2398 | |
3d9652eb RS |
2399 | if (XINT (count) > 0) |
2400 | XSETINT (val, (EMACS_UINT) XUINT (value) << XFASTINT (count)); | |
7921925c | 2401 | else |
3d9652eb | 2402 | XSETINT (val, (EMACS_UINT) XUINT (value) >> -XINT (count)); |
7921925c JB |
2403 | return val; |
2404 | } | |
2405 | ||
2406 | DEFUN ("1+", Fadd1, Sadd1, 1, 1, 0, | |
2407 | "Return NUMBER plus one. NUMBER may be a number or a marker.\n\ | |
2408 | Markers are converted to integers.") | |
d9c2a0f2 EN |
2409 | (number) |
2410 | register Lisp_Object number; | |
7921925c JB |
2411 | { |
2412 | #ifdef LISP_FLOAT_TYPE | |
d9c2a0f2 | 2413 | CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (number, 0); |
7921925c | 2414 | |
d9c2a0f2 EN |
2415 | if (FLOATP (number)) |
2416 | return (make_float (1.0 + XFLOAT (number)->data)); | |
7921925c | 2417 | #else |
d9c2a0f2 | 2418 | CHECK_NUMBER_COERCE_MARKER (number, 0); |
7921925c JB |
2419 | #endif /* LISP_FLOAT_TYPE */ |
2420 | ||
d9c2a0f2 EN |
2421 | XSETINT (number, XINT (number) + 1); |
2422 | return number; | |
7921925c JB |
2423 | } |
2424 | ||
2425 | DEFUN ("1-", Fsub1, Ssub1, 1, 1, 0, | |
2426 | "Return NUMBER minus one. NUMBER may be a number or a marker.\n\ | |
2427 | Markers are converted to integers.") | |
d9c2a0f2 EN |
2428 | (number) |
2429 | register Lisp_Object number; | |
7921925c JB |
2430 | { |
2431 | #ifdef LISP_FLOAT_TYPE | |
d9c2a0f2 | 2432 | CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (number, 0); |
7921925c | 2433 | |
d9c2a0f2 EN |
2434 | if (FLOATP (number)) |
2435 | return (make_float (-1.0 + XFLOAT (number)->data)); | |
7921925c | 2436 | #else |
d9c2a0f2 | 2437 | CHECK_NUMBER_COERCE_MARKER (number, 0); |
7921925c JB |
2438 | #endif /* LISP_FLOAT_TYPE */ |
2439 | ||
d9c2a0f2 EN |
2440 | XSETINT (number, XINT (number) - 1); |
2441 | return number; | |
7921925c JB |
2442 | } |
2443 | ||
2444 | DEFUN ("lognot", Flognot, Slognot, 1, 1, 0, | |
d9c2a0f2 EN |
2445 | "Return the bitwise complement of NUMBER. NUMBER must be an integer.") |
2446 | (number) | |
2447 | register Lisp_Object number; | |
7921925c | 2448 | { |
d9c2a0f2 | 2449 | CHECK_NUMBER (number, 0); |
53924017 | 2450 | XSETINT (number, ~XINT (number)); |
d9c2a0f2 | 2451 | return number; |
7921925c JB |
2452 | } |
2453 | \f | |
2454 | void | |
2455 | syms_of_data () | |
2456 | { | |
6315e761 RS |
2457 | Lisp_Object error_tail, arith_tail; |
2458 | ||
7921925c JB |
2459 | Qquote = intern ("quote"); |
2460 | Qlambda = intern ("lambda"); | |
2461 | Qsubr = intern ("subr"); | |
2462 | Qerror_conditions = intern ("error-conditions"); | |
2463 | Qerror_message = intern ("error-message"); | |
2464 | Qtop_level = intern ("top-level"); | |
2465 | ||
2466 | Qerror = intern ("error"); | |
2467 | Qquit = intern ("quit"); | |
2468 | Qwrong_type_argument = intern ("wrong-type-argument"); | |
2469 | Qargs_out_of_range = intern ("args-out-of-range"); | |
2470 | Qvoid_function = intern ("void-function"); | |
ffd56f97 | 2471 | Qcyclic_function_indirection = intern ("cyclic-function-indirection"); |
7921925c JB |
2472 | Qvoid_variable = intern ("void-variable"); |
2473 | Qsetting_constant = intern ("setting-constant"); | |
2474 | Qinvalid_read_syntax = intern ("invalid-read-syntax"); | |
2475 | ||
2476 | Qinvalid_function = intern ("invalid-function"); | |
2477 | Qwrong_number_of_arguments = intern ("wrong-number-of-arguments"); | |
2478 | Qno_catch = intern ("no-catch"); | |
2479 | Qend_of_file = intern ("end-of-file"); | |
2480 | Qarith_error = intern ("arith-error"); | |
2481 | Qbeginning_of_buffer = intern ("beginning-of-buffer"); | |
2482 | Qend_of_buffer = intern ("end-of-buffer"); | |
2483 | Qbuffer_read_only = intern ("buffer-read-only"); | |
3b8819d6 | 2484 | Qmark_inactive = intern ("mark-inactive"); |
7921925c JB |
2485 | |
2486 | Qlistp = intern ("listp"); | |
2487 | Qconsp = intern ("consp"); | |
2488 | Qsymbolp = intern ("symbolp"); | |
2489 | Qintegerp = intern ("integerp"); | |
2490 | Qnatnump = intern ("natnump"); | |
8e86942b | 2491 | Qwholenump = intern ("wholenump"); |
7921925c JB |
2492 | Qstringp = intern ("stringp"); |
2493 | Qarrayp = intern ("arrayp"); | |
2494 | Qsequencep = intern ("sequencep"); | |
2495 | Qbufferp = intern ("bufferp"); | |
2496 | Qvectorp = intern ("vectorp"); | |
2497 | Qchar_or_string_p = intern ("char-or-string-p"); | |
2498 | Qmarkerp = intern ("markerp"); | |
07bd8472 | 2499 | Qbuffer_or_string_p = intern ("buffer-or-string-p"); |
7921925c JB |
2500 | Qinteger_or_marker_p = intern ("integer-or-marker-p"); |
2501 | Qboundp = intern ("boundp"); | |
2502 | Qfboundp = intern ("fboundp"); | |
2503 | ||
2504 | #ifdef LISP_FLOAT_TYPE | |
2505 | Qfloatp = intern ("floatp"); | |
2506 | Qnumberp = intern ("numberp"); | |
2507 | Qnumber_or_marker_p = intern ("number-or-marker-p"); | |
2508 | #endif /* LISP_FLOAT_TYPE */ | |
2509 | ||
4d276982 | 2510 | Qchar_table_p = intern ("char-table-p"); |
7f0edce7 | 2511 | Qvector_or_char_table_p = intern ("vector-or-char-table-p"); |
4d276982 | 2512 | |
7921925c JB |
2513 | Qcdr = intern ("cdr"); |
2514 | ||
f845f2c9 | 2515 | /* Handle automatic advice activation */ |
ab297811 RS |
2516 | Qad_advice_info = intern ("ad-advice-info"); |
2517 | Qad_activate = intern ("ad-activate"); | |
f845f2c9 | 2518 | |
6315e761 RS |
2519 | error_tail = Fcons (Qerror, Qnil); |
2520 | ||
7921925c JB |
2521 | /* ERROR is used as a signaler for random errors for which nothing else is right */ |
2522 | ||
2523 | Fput (Qerror, Qerror_conditions, | |
6315e761 | 2524 | error_tail); |
7921925c JB |
2525 | Fput (Qerror, Qerror_message, |
2526 | build_string ("error")); | |
2527 | ||
2528 | Fput (Qquit, Qerror_conditions, | |
2529 | Fcons (Qquit, Qnil)); | |
2530 | Fput (Qquit, Qerror_message, | |
2531 | build_string ("Quit")); | |
2532 | ||
2533 | Fput (Qwrong_type_argument, Qerror_conditions, | |
6315e761 | 2534 | Fcons (Qwrong_type_argument, error_tail)); |
7921925c JB |
2535 | Fput (Qwrong_type_argument, Qerror_message, |
2536 | build_string ("Wrong type argument")); | |
2537 | ||
2538 | Fput (Qargs_out_of_range, Qerror_conditions, | |
6315e761 | 2539 | Fcons (Qargs_out_of_range, error_tail)); |
7921925c JB |
2540 | Fput (Qargs_out_of_range, Qerror_message, |
2541 | build_string ("Args out of range")); | |
2542 | ||
2543 | Fput (Qvoid_function, Qerror_conditions, | |
6315e761 | 2544 | Fcons (Qvoid_function, error_tail)); |
7921925c JB |
2545 | Fput (Qvoid_function, Qerror_message, |
2546 | build_string ("Symbol's function definition is void")); | |
2547 | ||
ffd56f97 | 2548 | Fput (Qcyclic_function_indirection, Qerror_conditions, |
6315e761 | 2549 | Fcons (Qcyclic_function_indirection, error_tail)); |
ffd56f97 JB |
2550 | Fput (Qcyclic_function_indirection, Qerror_message, |
2551 | build_string ("Symbol's chain of function indirections contains a loop")); | |
2552 | ||
7921925c | 2553 | Fput (Qvoid_variable, Qerror_conditions, |
6315e761 | 2554 | Fcons (Qvoid_variable, error_tail)); |
7921925c JB |
2555 | Fput (Qvoid_variable, Qerror_message, |
2556 | build_string ("Symbol's value as variable is void")); | |
2557 | ||
2558 | Fput (Qsetting_constant, Qerror_conditions, | |
6315e761 | 2559 | Fcons (Qsetting_constant, error_tail)); |
7921925c JB |
2560 | Fput (Qsetting_constant, Qerror_message, |
2561 | build_string ("Attempt to set a constant symbol")); | |
2562 | ||
2563 | Fput (Qinvalid_read_syntax, Qerror_conditions, | |
6315e761 | 2564 | Fcons (Qinvalid_read_syntax, error_tail)); |
7921925c JB |
2565 | Fput (Qinvalid_read_syntax, Qerror_message, |
2566 | build_string ("Invalid read syntax")); | |
2567 | ||
2568 | Fput (Qinvalid_function, Qerror_conditions, | |
6315e761 | 2569 | Fcons (Qinvalid_function, error_tail)); |
7921925c JB |
2570 | Fput (Qinvalid_function, Qerror_message, |
2571 | build_string ("Invalid function")); | |
2572 | ||
2573 | Fput (Qwrong_number_of_arguments, Qerror_conditions, | |
6315e761 | 2574 | Fcons (Qwrong_number_of_arguments, error_tail)); |
7921925c JB |
2575 | Fput (Qwrong_number_of_arguments, Qerror_message, |
2576 | build_string ("Wrong number of arguments")); | |
2577 | ||
2578 | Fput (Qno_catch, Qerror_conditions, | |
6315e761 | 2579 | Fcons (Qno_catch, error_tail)); |
7921925c JB |
2580 | Fput (Qno_catch, Qerror_message, |
2581 | build_string ("No catch for tag")); | |
2582 | ||
2583 | Fput (Qend_of_file, Qerror_conditions, | |
6315e761 | 2584 | Fcons (Qend_of_file, error_tail)); |
7921925c JB |
2585 | Fput (Qend_of_file, Qerror_message, |
2586 | build_string ("End of file during parsing")); | |
2587 | ||
6315e761 | 2588 | arith_tail = Fcons (Qarith_error, error_tail); |
7921925c | 2589 | Fput (Qarith_error, Qerror_conditions, |
6315e761 | 2590 | arith_tail); |
7921925c JB |
2591 | Fput (Qarith_error, Qerror_message, |
2592 | build_string ("Arithmetic error")); | |
2593 | ||
2594 | Fput (Qbeginning_of_buffer, Qerror_conditions, | |
6315e761 | 2595 | Fcons (Qbeginning_of_buffer, error_tail)); |
7921925c JB |
2596 | Fput (Qbeginning_of_buffer, Qerror_message, |
2597 | build_string ("Beginning of buffer")); | |
2598 | ||
2599 | Fput (Qend_of_buffer, Qerror_conditions, | |
6315e761 | 2600 | Fcons (Qend_of_buffer, error_tail)); |
7921925c JB |
2601 | Fput (Qend_of_buffer, Qerror_message, |
2602 | build_string ("End of buffer")); | |
2603 | ||
2604 | Fput (Qbuffer_read_only, Qerror_conditions, | |
6315e761 | 2605 | Fcons (Qbuffer_read_only, error_tail)); |
7921925c JB |
2606 | Fput (Qbuffer_read_only, Qerror_message, |
2607 | build_string ("Buffer is read-only")); | |
2608 | ||
6315e761 RS |
2609 | #ifdef LISP_FLOAT_TYPE |
2610 | Qrange_error = intern ("range-error"); | |
2611 | Qdomain_error = intern ("domain-error"); | |
2612 | Qsingularity_error = intern ("singularity-error"); | |
2613 | Qoverflow_error = intern ("overflow-error"); | |
2614 | Qunderflow_error = intern ("underflow-error"); | |
2615 | ||
2616 | Fput (Qdomain_error, Qerror_conditions, | |
2617 | Fcons (Qdomain_error, arith_tail)); | |
2618 | Fput (Qdomain_error, Qerror_message, | |
2619 | build_string ("Arithmetic domain error")); | |
2620 | ||
2621 | Fput (Qrange_error, Qerror_conditions, | |
2622 | Fcons (Qrange_error, arith_tail)); | |
2623 | Fput (Qrange_error, Qerror_message, | |
2624 | build_string ("Arithmetic range error")); | |
2625 | ||
2626 | Fput (Qsingularity_error, Qerror_conditions, | |
2627 | Fcons (Qsingularity_error, Fcons (Qdomain_error, arith_tail))); | |
2628 | Fput (Qsingularity_error, Qerror_message, | |
2629 | build_string ("Arithmetic singularity error")); | |
2630 | ||
2631 | Fput (Qoverflow_error, Qerror_conditions, | |
2632 | Fcons (Qoverflow_error, Fcons (Qdomain_error, arith_tail))); | |
2633 | Fput (Qoverflow_error, Qerror_message, | |
2634 | build_string ("Arithmetic overflow error")); | |
2635 | ||
2636 | Fput (Qunderflow_error, Qerror_conditions, | |
2637 | Fcons (Qunderflow_error, Fcons (Qdomain_error, arith_tail))); | |
2638 | Fput (Qunderflow_error, Qerror_message, | |
2639 | build_string ("Arithmetic underflow error")); | |
2640 | ||
2641 | staticpro (&Qrange_error); | |
2642 | staticpro (&Qdomain_error); | |
2643 | staticpro (&Qsingularity_error); | |
2644 | staticpro (&Qoverflow_error); | |
2645 | staticpro (&Qunderflow_error); | |
2646 | #endif /* LISP_FLOAT_TYPE */ | |
2647 | ||
7921925c JB |
2648 | staticpro (&Qnil); |
2649 | staticpro (&Qt); | |
2650 | staticpro (&Qquote); | |
2651 | staticpro (&Qlambda); | |
2652 | staticpro (&Qsubr); | |
2653 | staticpro (&Qunbound); | |
2654 | staticpro (&Qerror_conditions); | |
2655 | staticpro (&Qerror_message); | |
2656 | staticpro (&Qtop_level); | |
2657 | ||
2658 | staticpro (&Qerror); | |
2659 | staticpro (&Qquit); | |
2660 | staticpro (&Qwrong_type_argument); | |
2661 | staticpro (&Qargs_out_of_range); | |
2662 | staticpro (&Qvoid_function); | |
ffd56f97 | 2663 | staticpro (&Qcyclic_function_indirection); |
7921925c JB |
2664 | staticpro (&Qvoid_variable); |
2665 | staticpro (&Qsetting_constant); | |
2666 | staticpro (&Qinvalid_read_syntax); | |
2667 | staticpro (&Qwrong_number_of_arguments); | |
2668 | staticpro (&Qinvalid_function); | |
2669 | staticpro (&Qno_catch); | |
2670 | staticpro (&Qend_of_file); | |
2671 | staticpro (&Qarith_error); | |
2672 | staticpro (&Qbeginning_of_buffer); | |
2673 | staticpro (&Qend_of_buffer); | |
2674 | staticpro (&Qbuffer_read_only); | |
638b77e6 | 2675 | staticpro (&Qmark_inactive); |
7921925c JB |
2676 | |
2677 | staticpro (&Qlistp); | |
2678 | staticpro (&Qconsp); | |
2679 | staticpro (&Qsymbolp); | |
2680 | staticpro (&Qintegerp); | |
2681 | staticpro (&Qnatnump); | |
8e86942b | 2682 | staticpro (&Qwholenump); |
7921925c JB |
2683 | staticpro (&Qstringp); |
2684 | staticpro (&Qarrayp); | |
2685 | staticpro (&Qsequencep); | |
2686 | staticpro (&Qbufferp); | |
2687 | staticpro (&Qvectorp); | |
2688 | staticpro (&Qchar_or_string_p); | |
2689 | staticpro (&Qmarkerp); | |
07bd8472 | 2690 | staticpro (&Qbuffer_or_string_p); |
7921925c JB |
2691 | staticpro (&Qinteger_or_marker_p); |
2692 | #ifdef LISP_FLOAT_TYPE | |
2693 | staticpro (&Qfloatp); | |
464f8898 RS |
2694 | staticpro (&Qnumberp); |
2695 | staticpro (&Qnumber_or_marker_p); | |
7921925c | 2696 | #endif /* LISP_FLOAT_TYPE */ |
4d276982 | 2697 | staticpro (&Qchar_table_p); |
7f0edce7 | 2698 | staticpro (&Qvector_or_char_table_p); |
7921925c JB |
2699 | |
2700 | staticpro (&Qboundp); | |
2701 | staticpro (&Qfboundp); | |
2702 | staticpro (&Qcdr); | |
ab297811 RS |
2703 | staticpro (&Qad_advice_info); |
2704 | staticpro (&Qad_activate); | |
7921925c | 2705 | |
39bcc759 RS |
2706 | /* Types that type-of returns. */ |
2707 | Qinteger = intern ("integer"); | |
2708 | Qsymbol = intern ("symbol"); | |
2709 | Qstring = intern ("string"); | |
2710 | Qcons = intern ("cons"); | |
2711 | Qmarker = intern ("marker"); | |
2712 | Qoverlay = intern ("overlay"); | |
2713 | Qfloat = intern ("float"); | |
2714 | Qwindow_configuration = intern ("window-configuration"); | |
2715 | Qprocess = intern ("process"); | |
2716 | Qwindow = intern ("window"); | |
2717 | /* Qsubr = intern ("subr"); */ | |
2718 | Qcompiled_function = intern ("compiled-function"); | |
2719 | Qbuffer = intern ("buffer"); | |
2720 | Qframe = intern ("frame"); | |
2721 | Qvector = intern ("vector"); | |
fc67d5be KH |
2722 | Qchar_table = intern ("char-table"); |
2723 | Qbool_vector = intern ("bool-vector"); | |
39bcc759 RS |
2724 | |
2725 | staticpro (&Qinteger); | |
2726 | staticpro (&Qsymbol); | |
2727 | staticpro (&Qstring); | |
2728 | staticpro (&Qcons); | |
2729 | staticpro (&Qmarker); | |
2730 | staticpro (&Qoverlay); | |
2731 | staticpro (&Qfloat); | |
2732 | staticpro (&Qwindow_configuration); | |
2733 | staticpro (&Qprocess); | |
2734 | staticpro (&Qwindow); | |
2735 | /* staticpro (&Qsubr); */ | |
2736 | staticpro (&Qcompiled_function); | |
2737 | staticpro (&Qbuffer); | |
2738 | staticpro (&Qframe); | |
2739 | staticpro (&Qvector); | |
fc67d5be KH |
2740 | staticpro (&Qchar_table); |
2741 | staticpro (&Qbool_vector); | |
39bcc759 | 2742 | |
7921925c JB |
2743 | defsubr (&Seq); |
2744 | defsubr (&Snull); | |
39bcc759 | 2745 | defsubr (&Stype_of); |
7921925c JB |
2746 | defsubr (&Slistp); |
2747 | defsubr (&Snlistp); | |
2748 | defsubr (&Sconsp); | |
2749 | defsubr (&Satom); | |
2750 | defsubr (&Sintegerp); | |
464f8898 | 2751 | defsubr (&Sinteger_or_marker_p); |
7921925c JB |
2752 | defsubr (&Snumberp); |
2753 | defsubr (&Snumber_or_marker_p); | |
464f8898 RS |
2754 | #ifdef LISP_FLOAT_TYPE |
2755 | defsubr (&Sfloatp); | |
7921925c JB |
2756 | #endif /* LISP_FLOAT_TYPE */ |
2757 | defsubr (&Snatnump); | |
2758 | defsubr (&Ssymbolp); | |
2759 | defsubr (&Sstringp); | |
2760 | defsubr (&Svectorp); | |
4d276982 | 2761 | defsubr (&Schar_table_p); |
7f0edce7 | 2762 | defsubr (&Svector_or_char_table_p); |
4d276982 | 2763 | defsubr (&Sbool_vector_p); |
7921925c JB |
2764 | defsubr (&Sarrayp); |
2765 | defsubr (&Ssequencep); | |
2766 | defsubr (&Sbufferp); | |
2767 | defsubr (&Smarkerp); | |
7921925c | 2768 | defsubr (&Ssubrp); |
dbc4e1c1 | 2769 | defsubr (&Sbyte_code_function_p); |
7921925c JB |
2770 | defsubr (&Schar_or_string_p); |
2771 | defsubr (&Scar); | |
2772 | defsubr (&Scdr); | |
2773 | defsubr (&Scar_safe); | |
2774 | defsubr (&Scdr_safe); | |
2775 | defsubr (&Ssetcar); | |
2776 | defsubr (&Ssetcdr); | |
2777 | defsubr (&Ssymbol_function); | |
ffd56f97 | 2778 | defsubr (&Sindirect_function); |
7921925c JB |
2779 | defsubr (&Ssymbol_plist); |
2780 | defsubr (&Ssymbol_name); | |
2781 | defsubr (&Smakunbound); | |
2782 | defsubr (&Sfmakunbound); | |
2783 | defsubr (&Sboundp); | |
2784 | defsubr (&Sfboundp); | |
2785 | defsubr (&Sfset); | |
80df38a2 | 2786 | defsubr (&Sdefalias); |
7921925c JB |
2787 | defsubr (&Ssetplist); |
2788 | defsubr (&Ssymbol_value); | |
2789 | defsubr (&Sset); | |
2790 | defsubr (&Sdefault_boundp); | |
2791 | defsubr (&Sdefault_value); | |
2792 | defsubr (&Sset_default); | |
2793 | defsubr (&Ssetq_default); | |
2794 | defsubr (&Smake_variable_buffer_local); | |
2795 | defsubr (&Smake_local_variable); | |
2796 | defsubr (&Skill_local_variable); | |
62476adc | 2797 | defsubr (&Slocal_variable_p); |
f4f04cee | 2798 | defsubr (&Slocal_variable_if_set_p); |
7921925c JB |
2799 | defsubr (&Saref); |
2800 | defsubr (&Saset); | |
f2980264 | 2801 | defsubr (&Snumber_to_string); |
25e40a4b | 2802 | defsubr (&Sstring_to_number); |
7921925c JB |
2803 | defsubr (&Seqlsign); |
2804 | defsubr (&Slss); | |
2805 | defsubr (&Sgtr); | |
2806 | defsubr (&Sleq); | |
2807 | defsubr (&Sgeq); | |
2808 | defsubr (&Sneq); | |
2809 | defsubr (&Szerop); | |
2810 | defsubr (&Splus); | |
2811 | defsubr (&Sminus); | |
2812 | defsubr (&Stimes); | |
2813 | defsubr (&Squo); | |
2814 | defsubr (&Srem); | |
44fa9da5 | 2815 | defsubr (&Smod); |
7921925c JB |
2816 | defsubr (&Smax); |
2817 | defsubr (&Smin); | |
2818 | defsubr (&Slogand); | |
2819 | defsubr (&Slogior); | |
2820 | defsubr (&Slogxor); | |
2821 | defsubr (&Slsh); | |
2822 | defsubr (&Sash); | |
2823 | defsubr (&Sadd1); | |
2824 | defsubr (&Ssub1); | |
2825 | defsubr (&Slognot); | |
8e86942b | 2826 | |
c80bd143 | 2827 | XSYMBOL (Qwholenump)->function = XSYMBOL (Qnatnump)->function; |
7921925c JB |
2828 | } |
2829 | ||
a33ef3ab | 2830 | SIGTYPE |
7921925c JB |
2831 | arith_error (signo) |
2832 | int signo; | |
2833 | { | |
fe42a920 | 2834 | #if defined(USG) && !defined(POSIX_SIGNALS) |
7921925c JB |
2835 | /* USG systems forget handlers when they are used; |
2836 | must reestablish each time */ | |
2837 | signal (signo, arith_error); | |
2838 | #endif /* USG */ | |
2839 | #ifdef VMS | |
2840 | /* VMS systems are like USG. */ | |
2841 | signal (signo, arith_error); | |
2842 | #endif /* VMS */ | |
2843 | #ifdef BSD4_1 | |
2844 | sigrelse (SIGFPE); | |
2845 | #else /* not BSD4_1 */ | |
e065a56e | 2846 | sigsetmask (SIGEMPTYMASK); |
7921925c JB |
2847 | #endif /* not BSD4_1 */ |
2848 | ||
2849 | Fsignal (Qarith_error, Qnil); | |
2850 | } | |
2851 | ||
2852 | init_data () | |
2853 | { | |
2854 | /* Don't do this if just dumping out. | |
2855 | We don't want to call `signal' in this case | |
2856 | so that we don't have trouble with dumping | |
2857 | signal-delivering routines in an inconsistent state. */ | |
2858 | #ifndef CANNOT_DUMP | |
2859 | if (!initialized) | |
2860 | return; | |
2861 | #endif /* CANNOT_DUMP */ | |
2862 | signal (SIGFPE, arith_error); | |
7403b5c8 | 2863 | |
7921925c JB |
2864 | #ifdef uts |
2865 | signal (SIGEMT, arith_error); | |
2866 | #endif /* uts */ | |
2867 | } |