Mercurial > hg > xemacs-beta
annotate src/data.c @ 4912:e99033b7e05c
use more specific `scan-error' in scan-lists to be GNU compatible
-------------------- ChangeLog entries follow: --------------------
src/ChangeLog addition:
2010-02-01 Ben Wing <ben@xemacs.org>
* syntax.c:
* syntax.c (scan_lists):
* syntax.c (syms_of_syntax):
Declare `scan-error' as a type of `syntax-error'. In `scan-lists'
et al., don't signal a syntax error but instead a `scan-error', and
pass a couple of integer arguments, for GNU compatibility. Fixes
problems with typing double-quote in texinfo.el.
| author | Ben Wing <ben@xemacs.org> |
|---|---|
| date | Mon, 01 Feb 2010 23:07:33 -0600 |
| parents | 9e7f5a77cc84 |
| children | e813cf16c015 c17c857e20bf |
| rev | line source |
|---|---|
| 428 | 1 /* Primitive operations on Lisp data types for XEmacs Lisp interpreter. |
| 2 Copyright (C) 1985, 1986, 1988, 1992, 1993, 1994, 1995 | |
| 3 Free Software Foundation, Inc. | |
| 1330 | 4 Copyright (C) 2000, 2001, 2002, 2003 Ben Wing. |
| 428 | 5 |
| 6 This file is part of XEmacs. | |
| 7 | |
| 8 XEmacs is free software; you can redistribute it and/or modify it | |
| 9 under the terms of the GNU General Public License as published by the | |
| 10 Free Software Foundation; either version 2, or (at your option) any | |
| 11 later version. | |
| 12 | |
| 13 XEmacs is distributed in the hope that it will be useful, but WITHOUT | |
| 14 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 15 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 16 for more details. | |
| 17 | |
| 18 You should have received a copy of the GNU General Public License | |
| 19 along with XEmacs; see the file COPYING. If not, write to | |
| 20 the Free Software Foundation, Inc., 59 Temple Place - Suite 330, | |
| 21 Boston, MA 02111-1307, USA. */ | |
| 22 | |
| 23 /* Synched up with: Mule 2.0, FSF 19.30. Some of FSF's data.c is in | |
| 24 XEmacs' symbols.c. */ | |
| 25 | |
| 26 /* This file has been Mule-ized. */ | |
| 27 | |
| 28 #include <config.h> | |
| 29 #include "lisp.h" | |
| 30 | |
| 31 #include "buffer.h" | |
| 32 #include "bytecode.h" | |
| 33 #include "syssignal.h" | |
| 771 | 34 #include "sysfloat.h" |
| 428 | 35 |
| 36 Lisp_Object Qnil, Qt, Qquote, Qlambda, Qunbound; | |
| 37 Lisp_Object Qerror_conditions, Qerror_message; | |
| 442 | 38 Lisp_Object Qerror, Qquit, Qsyntax_error, Qinvalid_read_syntax; |
| 563 | 39 Lisp_Object Qlist_formation_error, Qstructure_formation_error; |
| 442 | 40 Lisp_Object Qmalformed_list, Qmalformed_property_list; |
| 41 Lisp_Object Qcircular_list, Qcircular_property_list; | |
| 563 | 42 Lisp_Object Qinvalid_argument, Qinvalid_constant, Qwrong_type_argument; |
| 43 Lisp_Object Qargs_out_of_range; | |
| 442 | 44 Lisp_Object Qwrong_number_of_arguments, Qinvalid_function, Qno_catch; |
| 563 | 45 Lisp_Object Qinternal_error, Qinvalid_state, Qstack_overflow, Qout_of_memory; |
| 428 | 46 Lisp_Object Qvoid_variable, Qcyclic_variable_indirection; |
| 47 Lisp_Object Qvoid_function, Qcyclic_function_indirection; | |
| 563 | 48 Lisp_Object Qinvalid_operation, Qinvalid_change, Qprinting_unreadable_object; |
| 442 | 49 Lisp_Object Qsetting_constant; |
| 50 Lisp_Object Qediting_error; | |
| 51 Lisp_Object Qbeginning_of_buffer, Qend_of_buffer, Qbuffer_read_only; | |
| 563 | 52 Lisp_Object Qio_error, Qfile_error, Qconversion_error, Qend_of_file; |
| 580 | 53 Lisp_Object Qtext_conversion_error; |
| 428 | 54 Lisp_Object Qarith_error, Qrange_error, Qdomain_error; |
| 55 Lisp_Object Qsingularity_error, Qoverflow_error, Qunderflow_error; | |
| 1983 | 56 Lisp_Object Qintegerp, Qnatnump, Qnonnegativep, Qsymbolp; |
| 428 | 57 Lisp_Object Qlistp, Qtrue_list_p, Qweak_listp; |
| 58 Lisp_Object Qconsp, Qsubrp; | |
| 59 Lisp_Object Qcharacterp, Qstringp, Qarrayp, Qsequencep, Qvectorp; | |
| 60 Lisp_Object Qchar_or_string_p, Qmarkerp, Qinteger_or_marker_p, Qbufferp; | |
| 61 Lisp_Object Qinteger_or_char_p, Qinteger_char_or_marker_p; | |
| 62 Lisp_Object Qnumberp, Qnumber_char_or_marker_p; | |
| 63 Lisp_Object Qbit_vectorp, Qbitp, Qcdr; | |
| 64 | |
| 563 | 65 Lisp_Object Qerror_lacks_explanatory_string; |
| 428 | 66 Lisp_Object Qfloatp; |
| 67 | |
|
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68 Fixnum Vmost_negative_fixnum, Vmost_positive_fixnum; |
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69 |
| 428 | 70 #ifdef DEBUG_XEMACS |
| 71 | |
| 72 int debug_issue_ebola_notices; | |
| 73 | |
| 458 | 74 Fixnum debug_ebola_backtrace_length; |
| 428 | 75 |
| 76 int | |
| 77 eq_with_ebola_notice (Lisp_Object obj1, Lisp_Object obj2) | |
| 78 { | |
| 79 if (debug_issue_ebola_notices | |
| 80 && ((CHARP (obj1) && INTP (obj2)) || (CHARP (obj2) && INTP (obj1)))) | |
| 81 { | |
| 82 /* #### It would be really nice if this were a proper warning | |
| 1551 | 83 instead of brain-dead print to Qexternal_debugging_output. */ |
| 826 | 84 write_c_string |
| 85 (Qexternal_debugging_output, | |
| 86 "Comparison between integer and character is constant nil ("); | |
| 428 | 87 Fprinc (obj1, Qexternal_debugging_output); |
| 826 | 88 write_c_string (Qexternal_debugging_output, " and "); |
| 428 | 89 Fprinc (obj2, Qexternal_debugging_output); |
| 826 | 90 write_c_string (Qexternal_debugging_output, ")\n"); |
| 428 | 91 debug_short_backtrace (debug_ebola_backtrace_length); |
| 92 } | |
| 93 return EQ (obj1, obj2); | |
| 94 } | |
| 95 | |
| 96 #endif /* DEBUG_XEMACS */ | |
| 97 | |
| 98 | |
| 99 | |
| 100 Lisp_Object | |
| 101 wrong_type_argument (Lisp_Object predicate, Lisp_Object value) | |
| 102 { | |
| 103 /* This function can GC */ | |
| 104 REGISTER Lisp_Object tem; | |
| 105 do | |
| 106 { | |
| 107 value = Fsignal (Qwrong_type_argument, list2 (predicate, value)); | |
| 108 tem = call1 (predicate, value); | |
| 109 } | |
| 110 while (NILP (tem)); | |
| 111 return value; | |
| 112 } | |
| 113 | |
| 114 DOESNT_RETURN | |
| 115 dead_wrong_type_argument (Lisp_Object predicate, Lisp_Object value) | |
| 116 { | |
| 563 | 117 signal_error_1 (Qwrong_type_argument, list2 (predicate, value)); |
| 428 | 118 } |
| 119 | |
| 120 DEFUN ("wrong-type-argument", Fwrong_type_argument, 2, 2, 0, /* | |
| 121 Signal an error until the correct type value is given by the user. | |
| 122 This function loops, signalling a continuable `wrong-type-argument' error | |
| 123 with PREDICATE and VALUE as the data associated with the error and then | |
| 124 calling PREDICATE on the returned value, until the value gotten satisfies | |
| 125 PREDICATE. At that point, the gotten value is returned. | |
| 126 */ | |
| 127 (predicate, value)) | |
| 128 { | |
| 129 return wrong_type_argument (predicate, value); | |
| 130 } | |
| 131 | |
| 132 DOESNT_RETURN | |
| 133 c_write_error (Lisp_Object obj) | |
| 134 { | |
| 563 | 135 signal_error (Qsetting_constant, |
| 136 "Attempt to modify read-only object (c)", obj); | |
| 428 | 137 } |
| 138 | |
| 139 DOESNT_RETURN | |
| 140 lisp_write_error (Lisp_Object obj) | |
| 141 { | |
| 563 | 142 signal_error (Qsetting_constant, |
| 143 "Attempt to modify read-only object (lisp)", obj); | |
| 428 | 144 } |
| 145 | |
| 146 DOESNT_RETURN | |
| 147 args_out_of_range (Lisp_Object a1, Lisp_Object a2) | |
| 148 { | |
| 563 | 149 signal_error_1 (Qargs_out_of_range, list2 (a1, a2)); |
| 428 | 150 } |
| 151 | |
| 152 DOESNT_RETURN | |
| 153 args_out_of_range_3 (Lisp_Object a1, Lisp_Object a2, Lisp_Object a3) | |
| 154 { | |
| 563 | 155 signal_error_1 (Qargs_out_of_range, list3 (a1, a2, a3)); |
| 428 | 156 } |
| 157 | |
| 158 void | |
| 159 check_int_range (EMACS_INT val, EMACS_INT min, EMACS_INT max) | |
| 160 { | |
| 161 if (val < min || val > max) | |
| 162 args_out_of_range_3 (make_int (val), make_int (min), make_int (max)); | |
| 163 } | |
| 164 | |
| 165 | |
| 166 /* Data type predicates */ | |
| 167 | |
| 168 DEFUN ("eq", Feq, 2, 2, 0, /* | |
| 169 Return t if the two args are the same Lisp object. | |
| 170 */ | |
| 444 | 171 (object1, object2)) |
| 428 | 172 { |
| 444 | 173 return EQ_WITH_EBOLA_NOTICE (object1, object2) ? Qt : Qnil; |
| 428 | 174 } |
| 175 | |
| 176 DEFUN ("old-eq", Fold_eq, 2, 2, 0, /* | |
| 177 Return t if the two args are (in most cases) the same Lisp object. | |
| 178 | |
| 179 Special kludge: A character is considered `old-eq' to its equivalent integer | |
| 180 even though they are not the same object and are in fact of different | |
| 181 types. This is ABSOLUTELY AND UTTERLY HORRENDOUS but is necessary to | |
| 182 preserve byte-code compatibility with v19. This kludge is known as the | |
| 183 \"char-int confoundance disease\" and appears in a number of other | |
| 184 functions with `old-foo' equivalents. | |
| 185 | |
| 186 Do not use this function! | |
| 187 */ | |
| 444 | 188 (object1, object2)) |
| 428 | 189 { |
| 190 /* #### blasphemy */ | |
| 444 | 191 return HACKEQ_UNSAFE (object1, object2) ? Qt : Qnil; |
| 428 | 192 } |
| 193 | |
| 194 DEFUN ("null", Fnull, 1, 1, 0, /* | |
| 195 Return t if OBJECT is nil. | |
| 196 */ | |
| 197 (object)) | |
| 198 { | |
| 199 return NILP (object) ? Qt : Qnil; | |
| 200 } | |
| 201 | |
| 202 DEFUN ("consp", Fconsp, 1, 1, 0, /* | |
| 203 Return t if OBJECT is a cons cell. `nil' is not a cons cell. | |
| 3343 | 204 |
| 3355 | 205 See the documentation for `cons' or the Lisp manual for more details on what |
| 206 a cons cell is. | |
| 428 | 207 */ |
| 208 (object)) | |
| 209 { | |
| 210 return CONSP (object) ? Qt : Qnil; | |
| 211 } | |
| 212 | |
| 213 DEFUN ("atom", Fatom, 1, 1, 0, /* | |
| 214 Return t if OBJECT is not a cons cell. `nil' is not a cons cell. | |
| 3355 | 215 |
| 216 See the documentation for `cons' or the Lisp manual for more details on what | |
| 217 a cons cell is. | |
| 428 | 218 */ |
| 219 (object)) | |
| 220 { | |
| 221 return CONSP (object) ? Qnil : Qt; | |
| 222 } | |
| 223 | |
| 224 DEFUN ("listp", Flistp, 1, 1, 0, /* | |
| 225 Return t if OBJECT is a list. `nil' is a list. | |
| 3343 | 226 |
| 3355 | 227 A list is either the Lisp object nil (a symbol), interpreted as the empty |
| 228 list in this context, or a cons cell whose CDR refers to either nil or a | |
| 229 cons cell. A "proper list" contains no cycles. | |
| 428 | 230 */ |
| 231 (object)) | |
| 232 { | |
| 233 return LISTP (object) ? Qt : Qnil; | |
| 234 } | |
| 235 | |
| 236 DEFUN ("nlistp", Fnlistp, 1, 1, 0, /* | |
| 237 Return t if OBJECT is not a list. `nil' is a list. | |
| 238 */ | |
| 239 (object)) | |
| 240 { | |
| 241 return LISTP (object) ? Qnil : Qt; | |
| 242 } | |
| 243 | |
| 244 DEFUN ("true-list-p", Ftrue_list_p, 1, 1, 0, /* | |
| 1551 | 245 Return t if OBJECT is an acyclic, nil-terminated (ie, not dotted), list. |
| 428 | 246 */ |
| 247 (object)) | |
| 248 { | |
| 249 return TRUE_LIST_P (object) ? Qt : Qnil; | |
| 250 } | |
| 251 | |
| 252 DEFUN ("symbolp", Fsymbolp, 1, 1, 0, /* | |
| 253 Return t if OBJECT is a symbol. | |
| 3343 | 254 |
| 255 A symbol is a Lisp object with a name. It can optionally have any and all of | |
| 256 a value, a property list and an associated function. | |
| 428 | 257 */ |
| 258 (object)) | |
| 259 { | |
| 260 return SYMBOLP (object) ? Qt : Qnil; | |
| 261 } | |
| 262 | |
| 263 DEFUN ("keywordp", Fkeywordp, 1, 1, 0, /* | |
| 264 Return t if OBJECT is a keyword. | |
| 265 */ | |
| 266 (object)) | |
| 267 { | |
| 268 return KEYWORDP (object) ? Qt : Qnil; | |
| 269 } | |
| 270 | |
| 271 DEFUN ("vectorp", Fvectorp, 1, 1, 0, /* | |
| 272 Return t if OBJECT is a vector. | |
| 273 */ | |
| 274 (object)) | |
| 275 { | |
| 276 return VECTORP (object) ? Qt : Qnil; | |
| 277 } | |
| 278 | |
| 279 DEFUN ("bit-vector-p", Fbit_vector_p, 1, 1, 0, /* | |
| 280 Return t if OBJECT is a bit vector. | |
| 281 */ | |
| 282 (object)) | |
| 283 { | |
| 284 return BIT_VECTORP (object) ? Qt : Qnil; | |
| 285 } | |
| 286 | |
| 287 DEFUN ("stringp", Fstringp, 1, 1, 0, /* | |
| 288 Return t if OBJECT is a string. | |
| 289 */ | |
| 290 (object)) | |
| 291 { | |
| 292 return STRINGP (object) ? Qt : Qnil; | |
| 293 } | |
| 294 | |
| 295 DEFUN ("arrayp", Farrayp, 1, 1, 0, /* | |
| 296 Return t if OBJECT is an array (string, vector, or bit vector). | |
| 297 */ | |
| 298 (object)) | |
| 299 { | |
| 300 return (VECTORP (object) || | |
| 301 STRINGP (object) || | |
| 302 BIT_VECTORP (object)) | |
| 303 ? Qt : Qnil; | |
| 304 } | |
| 305 | |
| 306 DEFUN ("sequencep", Fsequencep, 1, 1, 0, /* | |
| 307 Return t if OBJECT is a sequence (list or array). | |
| 308 */ | |
| 309 (object)) | |
| 310 { | |
| 311 return (LISTP (object) || | |
| 312 VECTORP (object) || | |
| 313 STRINGP (object) || | |
| 314 BIT_VECTORP (object)) | |
| 315 ? Qt : Qnil; | |
| 316 } | |
| 317 | |
| 318 DEFUN ("markerp", Fmarkerp, 1, 1, 0, /* | |
| 319 Return t if OBJECT is a marker (editor pointer). | |
| 320 */ | |
| 321 (object)) | |
| 322 { | |
| 323 return MARKERP (object) ? Qt : Qnil; | |
| 324 } | |
| 325 | |
| 326 DEFUN ("subrp", Fsubrp, 1, 1, 0, /* | |
| 327 Return t if OBJECT is a built-in function. | |
| 328 */ | |
| 329 (object)) | |
| 330 { | |
| 331 return SUBRP (object) ? Qt : Qnil; | |
| 332 } | |
| 333 | |
| 334 DEFUN ("subr-min-args", Fsubr_min_args, 1, 1, 0, /* | |
| 335 Return minimum number of args built-in function SUBR may be called with. | |
| 336 */ | |
| 337 (subr)) | |
| 338 { | |
| 339 CHECK_SUBR (subr); | |
| 340 return make_int (XSUBR (subr)->min_args); | |
| 341 } | |
| 342 | |
| 343 DEFUN ("subr-max-args", Fsubr_max_args, 1, 1, 0, /* | |
| 344 Return maximum number of args built-in function SUBR may be called with, | |
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345 or nil if it takes an arbitrary number of arguments or is a special operator. |
| 428 | 346 */ |
| 347 (subr)) | |
| 348 { | |
| 349 int nargs; | |
| 350 CHECK_SUBR (subr); | |
| 351 nargs = XSUBR (subr)->max_args; | |
| 352 if (nargs == MANY || nargs == UNEVALLED) | |
| 353 return Qnil; | |
| 354 else | |
| 355 return make_int (nargs); | |
| 356 } | |
| 357 | |
| 358 DEFUN ("subr-interactive", Fsubr_interactive, 1, 1, 0, /* | |
| 444 | 359 Return the interactive spec of the subr object SUBR, or nil. |
| 428 | 360 If non-nil, the return value will be a list whose first element is |
| 361 `interactive' and whose second element is the interactive spec. | |
| 362 */ | |
| 363 (subr)) | |
| 364 { | |
| 867 | 365 const CIbyte *prompt; |
| 428 | 366 CHECK_SUBR (subr); |
| 367 prompt = XSUBR (subr)->prompt; | |
| 771 | 368 return prompt ? list2 (Qinteractive, build_msg_string (prompt)) : Qnil; |
| 428 | 369 } |
| 370 | |
| 371 | |
| 372 DEFUN ("characterp", Fcharacterp, 1, 1, 0, /* | |
| 373 Return t if OBJECT is a character. | |
| 374 Unlike in XEmacs v19 and FSF Emacs, a character is its own primitive type. | |
| 375 Any character can be converted into an equivalent integer using | |
| 376 `char-int'. To convert the other way, use `int-char'; however, | |
| 377 only some integers can be converted into characters. Such an integer | |
| 378 is called a `char-int'; see `char-int-p'. | |
| 379 | |
| 380 Some functions that work on integers (e.g. the comparison functions | |
| 381 <, <=, =, /=, etc. and the arithmetic functions +, -, *, etc.) | |
| 382 accept characters and implicitly convert them into integers. In | |
| 383 general, functions that work on characters also accept char-ints and | |
| 384 implicitly convert them into characters. WARNING: Neither of these | |
| 385 behaviors is very desirable, and they are maintained for backward | |
| 386 compatibility with old E-Lisp programs that confounded characters and | |
| 387 integers willy-nilly. These behaviors may change in the future; therefore, | |
| 388 do not rely on them. Instead, use the character-specific functions such | |
| 389 as `char='. | |
| 390 */ | |
| 391 (object)) | |
| 392 { | |
| 393 return CHARP (object) ? Qt : Qnil; | |
| 394 } | |
| 395 | |
| 396 DEFUN ("char-to-int", Fchar_to_int, 1, 1, 0, /* | |
| 444 | 397 Convert CHARACTER into an equivalent integer. |
| 428 | 398 The resulting integer will always be non-negative. The integers in |
| 399 the range 0 - 255 map to characters as follows: | |
| 400 | |
| 401 0 - 31 Control set 0 | |
| 402 32 - 127 ASCII | |
| 403 128 - 159 Control set 1 | |
| 404 160 - 255 Right half of ISO-8859-1 | |
| 405 | |
| 406 If support for Mule does not exist, these are the only valid character | |
| 407 values. When Mule support exists, the values assigned to other characters | |
| 408 may vary depending on the particular version of XEmacs, the order in which | |
| 409 character sets were loaded, etc., and you should not depend on them. | |
| 410 */ | |
| 444 | 411 (character)) |
| 428 | 412 { |
| 444 | 413 CHECK_CHAR (character); |
| 414 return make_int (XCHAR (character)); | |
| 428 | 415 } |
| 416 | |
| 417 DEFUN ("int-to-char", Fint_to_char, 1, 1, 0, /* | |
| 444 | 418 Convert integer INTEGER into the equivalent character. |
| 428 | 419 Not all integers correspond to valid characters; use `char-int-p' to |
| 420 determine whether this is the case. If the integer cannot be converted, | |
| 421 nil is returned. | |
| 422 */ | |
| 423 (integer)) | |
| 424 { | |
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425 CHECK_INTEGER (integer); |
| 428 | 426 if (CHAR_INTP (integer)) |
| 427 return make_char (XINT (integer)); | |
| 428 else | |
| 429 return Qnil; | |
| 430 } | |
| 431 | |
| 432 DEFUN ("char-int-p", Fchar_int_p, 1, 1, 0, /* | |
| 433 Return t if OBJECT is an integer that can be converted into a character. | |
| 434 See `char-int'. | |
| 435 */ | |
| 436 (object)) | |
| 437 { | |
| 438 return CHAR_INTP (object) ? Qt : Qnil; | |
| 439 } | |
| 440 | |
| 441 DEFUN ("char-or-char-int-p", Fchar_or_char_int_p, 1, 1, 0, /* | |
| 442 Return t if OBJECT is a character or an integer that can be converted into one. | |
| 443 */ | |
| 444 (object)) | |
| 445 { | |
| 446 return CHAR_OR_CHAR_INTP (object) ? Qt : Qnil; | |
| 447 } | |
| 448 | |
| 449 DEFUN ("char-or-string-p", Fchar_or_string_p, 1, 1, 0, /* | |
| 450 Return t if OBJECT is a character (or a char-int) or a string. | |
| 451 It is semi-hateful that we allow a char-int here, as it goes against | |
| 452 the name of this function, but it makes the most sense considering the | |
| 453 other steps we take to maintain compatibility with the old character/integer | |
| 454 confoundedness in older versions of E-Lisp. | |
| 455 */ | |
| 456 (object)) | |
| 457 { | |
| 458 return CHAR_OR_CHAR_INTP (object) || STRINGP (object) ? Qt : Qnil; | |
| 459 } | |
| 460 | |
| 1983 | 461 DEFUN ("fixnump", Ffixnump, 1, 1, 0, /* |
| 462 Return t if OBJECT is a fixnum. | |
|
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463 |
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464 In this implementation, a fixnum is an immediate integer, and has a |
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parents:
4846
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changeset
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465 maximum value described by the constant `most-positive-fixnum'. This |
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parents:
4846
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changeset
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466 contrasts with bignums, integers where the values are limited by your |
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467 available memory. |
| 1983 | 468 */ |
| 469 (object)) | |
| 470 { | |
| 471 return INTP (object) ? Qt : Qnil; | |
| 472 } | |
| 428 | 473 DEFUN ("integerp", Fintegerp, 1, 1, 0, /* |
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474 Return t if OBJECT is an integer, nil otherwise. |
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475 |
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476 On builds without bignum support, this function is identical to `fixnump'. |
| 428 | 477 */ |
| 478 (object)) | |
| 479 { | |
|
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|
480 return INTEGERP (object) ? Qt : Qnil; |
| 428 | 481 } |
| 482 | |
| 483 DEFUN ("integer-or-marker-p", Finteger_or_marker_p, 1, 1, 0, /* | |
| 484 Return t if OBJECT is an integer or a marker (editor pointer). | |
| 485 */ | |
| 486 (object)) | |
| 487 { | |
|
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|
488 return INTEGERP (object) || MARKERP (object) ? Qt : Qnil; |
| 428 | 489 } |
| 490 | |
| 491 DEFUN ("integer-or-char-p", Finteger_or_char_p, 1, 1, 0, /* | |
| 492 Return t if OBJECT is an integer or a character. | |
| 493 */ | |
| 494 (object)) | |
| 495 { | |
|
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|
496 return INTEGERP (object) || CHARP (object) ? Qt : Qnil; |
| 428 | 497 } |
| 498 | |
| 499 DEFUN ("integer-char-or-marker-p", Finteger_char_or_marker_p, 1, 1, 0, /* | |
| 500 Return t if OBJECT is an integer, character or a marker (editor pointer). | |
| 501 */ | |
| 502 (object)) | |
| 503 { | |
|
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|
504 return INTEGERP (object) || CHARP (object) || MARKERP (object) ? Qt : Qnil; |
| 428 | 505 } |
| 506 | |
| 507 DEFUN ("natnump", Fnatnump, 1, 1, 0, /* | |
| 508 Return t if OBJECT is a nonnegative integer. | |
| 509 */ | |
| 510 (object)) | |
| 511 { | |
| 1983 | 512 return NATNUMP (object) |
| 513 #ifdef HAVE_BIGNUM | |
| 514 || (BIGNUMP (object) && bignum_sign (XBIGNUM_DATA (object)) >= 0) | |
| 515 #endif | |
| 516 ? Qt : Qnil; | |
| 517 } | |
| 518 | |
| 519 DEFUN ("nonnegativep", Fnonnegativep, 1, 1, 0, /* | |
| 520 Return t if OBJECT is a nonnegative number. | |
| 521 */ | |
| 522 (object)) | |
| 523 { | |
| 524 return NATNUMP (object) | |
| 525 #ifdef HAVE_BIGNUM | |
| 526 || (BIGNUMP (object) && bignum_sign (XBIGNUM_DATA (object)) >= 0) | |
| 527 #endif | |
| 528 #ifdef HAVE_RATIO | |
| 529 || (RATIOP (object) && ratio_sign (XRATIO_DATA (object)) >= 0) | |
| 530 #endif | |
| 531 #ifdef HAVE_BIGFLOAT | |
| 532 || (BIGFLOATP (object) && bigfloat_sign (XBIGFLOAT_DATA (object)) >= 0) | |
| 533 #endif | |
| 534 ? Qt : Qnil; | |
| 428 | 535 } |
| 536 | |
| 537 DEFUN ("bitp", Fbitp, 1, 1, 0, /* | |
| 538 Return t if OBJECT is a bit (0 or 1). | |
| 539 */ | |
| 540 (object)) | |
| 541 { | |
| 542 return BITP (object) ? Qt : Qnil; | |
| 543 } | |
| 544 | |
| 545 DEFUN ("numberp", Fnumberp, 1, 1, 0, /* | |
| 546 Return t if OBJECT is a number (floating point or integer). | |
| 547 */ | |
| 548 (object)) | |
| 549 { | |
| 1983 | 550 return NUMBERP (object) ? Qt : Qnil; |
| 428 | 551 } |
| 552 | |
| 553 DEFUN ("number-or-marker-p", Fnumber_or_marker_p, 1, 1, 0, /* | |
| 554 Return t if OBJECT is a number or a marker. | |
| 555 */ | |
| 556 (object)) | |
| 557 { | |
|
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|
558 return NUMBERP (object) || MARKERP (object) ? Qt : Qnil; |
| 428 | 559 } |
| 560 | |
| 561 DEFUN ("number-char-or-marker-p", Fnumber_char_or_marker_p, 1, 1, 0, /* | |
| 562 Return t if OBJECT is a number, character or a marker. | |
| 563 */ | |
| 564 (object)) | |
| 565 { | |
|
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|
566 return (NUMBERP (object) || CHARP (object) || MARKERP (object)) |
| 428 | 567 ? Qt : Qnil; |
| 568 } | |
| 569 | |
| 570 DEFUN ("floatp", Ffloatp, 1, 1, 0, /* | |
| 571 Return t if OBJECT is a floating point number. | |
| 572 */ | |
| 573 (object)) | |
| 574 { | |
| 575 return FLOATP (object) ? Qt : Qnil; | |
| 576 } | |
| 577 | |
| 578 DEFUN ("type-of", Ftype_of, 1, 1, 0, /* | |
| 579 Return a symbol representing the type of OBJECT. | |
| 580 */ | |
| 581 (object)) | |
| 582 { | |
| 583 switch (XTYPE (object)) | |
| 584 { | |
| 585 case Lisp_Type_Record: | |
| 586 return intern (XRECORD_LHEADER_IMPLEMENTATION (object)->name); | |
| 587 | |
| 588 case Lisp_Type_Char: return Qcharacter; | |
| 589 | |
| 590 default: return Qinteger; | |
| 591 } | |
| 592 } | |
| 593 | |
| 594 | |
| 595 /* Extract and set components of lists */ | |
| 596 | |
| 597 DEFUN ("car", Fcar, 1, 1, 0, /* | |
| 3343 | 598 Return the car of CONS. If CONS is nil, return nil. |
| 599 The car of a list or a dotted pair is its first element. | |
| 600 | |
| 601 Error if CONS is not nil and not a cons cell. See also `car-safe'. | |
| 428 | 602 */ |
| 3343 | 603 (cons)) |
| 428 | 604 { |
| 605 while (1) | |
| 606 { | |
| 3343 | 607 if (CONSP (cons)) |
| 608 return XCAR (cons); | |
| 609 else if (NILP (cons)) | |
| 428 | 610 return Qnil; |
| 611 else | |
| 3343 | 612 cons = wrong_type_argument (Qlistp, cons); |
| 428 | 613 } |
| 614 } | |
| 615 | |
| 616 DEFUN ("car-safe", Fcar_safe, 1, 1, 0, /* | |
| 617 Return the car of OBJECT if it is a cons cell, or else nil. | |
| 618 */ | |
| 619 (object)) | |
| 620 { | |
| 621 return CONSP (object) ? XCAR (object) : Qnil; | |
| 622 } | |
| 623 | |
| 624 DEFUN ("cdr", Fcdr, 1, 1, 0, /* | |
| 3343 | 625 Return the cdr of CONS. If CONS is nil, return nil. |
| 626 The cdr of a list is the list without its first element. The cdr of a | |
| 627 dotted pair (A . B) is the second element, B. | |
| 628 | |
| 428 | 629 Error if arg is not nil and not a cons cell. See also `cdr-safe'. |
| 630 */ | |
| 3343 | 631 (cons)) |
| 428 | 632 { |
| 633 while (1) | |
| 634 { | |
| 3343 | 635 if (CONSP (cons)) |
| 636 return XCDR (cons); | |
| 637 else if (NILP (cons)) | |
| 428 | 638 return Qnil; |
| 639 else | |
| 3343 | 640 cons = wrong_type_argument (Qlistp, cons); |
| 428 | 641 } |
| 642 } | |
| 643 | |
| 644 DEFUN ("cdr-safe", Fcdr_safe, 1, 1, 0, /* | |
| 645 Return the cdr of OBJECT if it is a cons cell, else nil. | |
| 646 */ | |
| 647 (object)) | |
| 648 { | |
| 649 return CONSP (object) ? XCDR (object) : Qnil; | |
| 650 } | |
| 651 | |
| 652 DEFUN ("setcar", Fsetcar, 2, 2, 0, /* | |
| 444 | 653 Set the car of CONS-CELL to be NEWCAR. Return NEWCAR. |
| 3343 | 654 The car of a list or a dotted pair is its first element. |
| 428 | 655 */ |
| 444 | 656 (cons_cell, newcar)) |
| 428 | 657 { |
| 444 | 658 if (!CONSP (cons_cell)) |
| 659 cons_cell = wrong_type_argument (Qconsp, cons_cell); | |
| 428 | 660 |
| 444 | 661 XCAR (cons_cell) = newcar; |
| 428 | 662 return newcar; |
| 663 } | |
| 664 | |
| 665 DEFUN ("setcdr", Fsetcdr, 2, 2, 0, /* | |
| 444 | 666 Set the cdr of CONS-CELL to be NEWCDR. Return NEWCDR. |
| 3343 | 667 The cdr of a list is the list without its first element. The cdr of a |
| 668 dotted pair (A . B) is the second element, B. | |
| 428 | 669 */ |
| 444 | 670 (cons_cell, newcdr)) |
| 428 | 671 { |
| 444 | 672 if (!CONSP (cons_cell)) |
| 673 cons_cell = wrong_type_argument (Qconsp, cons_cell); | |
| 428 | 674 |
| 444 | 675 XCDR (cons_cell) = newcdr; |
| 428 | 676 return newcdr; |
| 677 } | |
| 678 | |
| 679 /* Find the function at the end of a chain of symbol function indirections. | |
| 680 | |
| 681 If OBJECT is a symbol, find the end of its function chain and | |
| 682 return the value found there. If OBJECT is not a symbol, just | |
| 683 return it. If there is a cycle in the function chain, signal a | |
| 684 cyclic-function-indirection error. | |
| 685 | |
| 442 | 686 This is like Findirect_function when VOID_FUNCTION_ERRORP is true. |
| 687 When VOID_FUNCTION_ERRORP is false, no error is signaled if the end | |
| 688 of the chain ends up being Qunbound. */ | |
| 428 | 689 Lisp_Object |
| 442 | 690 indirect_function (Lisp_Object object, int void_function_errorp) |
| 428 | 691 { |
| 692 #define FUNCTION_INDIRECTION_SUSPICION_LENGTH 16 | |
| 693 Lisp_Object tortoise, hare; | |
| 694 int count; | |
| 695 | |
| 696 for (hare = tortoise = object, count = 0; | |
| 697 SYMBOLP (hare); | |
| 698 hare = XSYMBOL (hare)->function, count++) | |
| 699 { | |
| 700 if (count < FUNCTION_INDIRECTION_SUSPICION_LENGTH) continue; | |
| 701 | |
| 702 if (count & 1) | |
| 703 tortoise = XSYMBOL (tortoise)->function; | |
| 704 if (EQ (hare, tortoise)) | |
| 705 return Fsignal (Qcyclic_function_indirection, list1 (object)); | |
| 706 } | |
| 707 | |
| 442 | 708 if (void_function_errorp && UNBOUNDP (hare)) |
| 436 | 709 return signal_void_function_error (object); |
| 428 | 710 |
| 711 return hare; | |
| 712 } | |
| 713 | |
| 714 DEFUN ("indirect-function", Findirect_function, 1, 1, 0, /* | |
| 715 Return the function at the end of OBJECT's function chain. | |
| 716 If OBJECT is a symbol, follow all function indirections and return | |
| 717 the final function binding. | |
| 718 If OBJECT is not a symbol, just return it. | |
| 719 Signal a void-function error if the final symbol is unbound. | |
| 720 Signal a cyclic-function-indirection error if there is a loop in the | |
| 721 function chain of symbols. | |
| 722 */ | |
| 723 (object)) | |
| 724 { | |
| 725 return indirect_function (object, 1); | |
| 726 } | |
| 727 | |
| 728 /* Extract and set vector and string elements */ | |
| 729 | |
| 730 DEFUN ("aref", Faref, 2, 2, 0, /* | |
| 731 Return the element of ARRAY at index INDEX. | |
| 732 ARRAY may be a vector, bit vector, or string. INDEX starts at 0. | |
| 733 */ | |
| 734 (array, index_)) | |
| 735 { | |
| 736 EMACS_INT idx; | |
| 737 | |
| 738 retry: | |
| 739 | |
| 740 if (INTP (index_)) idx = XINT (index_); | |
| 741 else if (CHARP (index_)) idx = XCHAR (index_); /* yuck! */ | |
|
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changeset
|
742 #ifdef HAVE_BIGNUM |
|
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|
743 else if (BIGNUMP (index_)) |
|
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|
744 { |
|
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changeset
|
745 Lisp_Object canon = Fcanonicalize_number (index_); |
|
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Fix hash tables, #'member*, #'assoc*, #'eql compiler macros if bignums
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changeset
|
746 if (EQ (canon, index_)) |
|
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Fix hash tables, #'member*, #'assoc*, #'eql compiler macros if bignums
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diff
changeset
|
747 { |
|
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Fix hash tables, #'member*, #'assoc*, #'eql compiler macros if bignums
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changeset
|
748 /* We don't support non-fixnum indices. */ |
|
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Fix hash tables, #'member*, #'assoc*, #'eql compiler macros if bignums
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diff
changeset
|
749 goto range_error; |
|
6772ce4d982b
Fix hash tables, #'member*, #'assoc*, #'eql compiler macros if bignums
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|
750 } |
|
6772ce4d982b
Fix hash tables, #'member*, #'assoc*, #'eql compiler macros if bignums
Aidan Kehoe <kehoea@parhasard.net>
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4846
diff
changeset
|
751 index_ = canon; |
|
6772ce4d982b
Fix hash tables, #'member*, #'assoc*, #'eql compiler macros if bignums
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4846
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changeset
|
752 goto retry; |
|
6772ce4d982b
Fix hash tables, #'member*, #'assoc*, #'eql compiler macros if bignums
Aidan Kehoe <kehoea@parhasard.net>
parents:
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changeset
|
753 } |
|
6772ce4d982b
Fix hash tables, #'member*, #'assoc*, #'eql compiler macros if bignums
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parents:
4846
diff
changeset
|
754 #endif |
| 428 | 755 else |
| 756 { | |
| 757 index_ = wrong_type_argument (Qinteger_or_char_p, index_); | |
| 758 goto retry; | |
| 759 } | |
| 760 | |
| 761 if (idx < 0) goto range_error; | |
| 762 | |
| 763 if (VECTORP (array)) | |
| 764 { | |
| 765 if (idx >= XVECTOR_LENGTH (array)) goto range_error; | |
| 766 return XVECTOR_DATA (array)[idx]; | |
| 767 } | |
| 768 else if (BIT_VECTORP (array)) | |
| 769 { | |
| 647 | 770 if (idx >= (EMACS_INT) bit_vector_length (XBIT_VECTOR (array))) |
| 771 goto range_error; | |
| 428 | 772 return make_int (bit_vector_bit (XBIT_VECTOR (array), idx)); |
| 773 } | |
| 774 else if (STRINGP (array)) | |
| 775 { | |
| 826 | 776 if (idx >= string_char_length (array)) goto range_error; |
| 867 | 777 return make_char (string_ichar (array, idx)); |
| 428 | 778 } |
| 779 #ifdef LOSING_BYTECODE | |
| 780 else if (COMPILED_FUNCTIONP (array)) | |
| 781 { | |
| 782 /* Weird, gross compatibility kludge */ | |
| 783 return Felt (array, index_); | |
| 784 } | |
| 785 #endif | |
| 786 else | |
| 787 { | |
| 788 check_losing_bytecode ("aref", array); | |
| 789 array = wrong_type_argument (Qarrayp, array); | |
| 790 goto retry; | |
| 791 } | |
| 792 | |
| 793 range_error: | |
| 794 args_out_of_range (array, index_); | |
| 1204 | 795 RETURN_NOT_REACHED (Qnil); |
| 428 | 796 } |
| 797 | |
| 798 DEFUN ("aset", Faset, 3, 3, 0, /* | |
| 799 Store into the element of ARRAY at index INDEX the value NEWVAL. | |
| 800 ARRAY may be a vector, bit vector, or string. INDEX starts at 0. | |
| 801 */ | |
| 802 (array, index_, newval)) | |
| 803 { | |
| 804 EMACS_INT idx; | |
| 805 | |
| 806 retry: | |
| 807 | |
| 808 if (INTP (index_)) idx = XINT (index_); | |
| 809 else if (CHARP (index_)) idx = XCHAR (index_); /* yuck! */ | |
|
4885
6772ce4d982b
Fix hash tables, #'member*, #'assoc*, #'eql compiler macros if bignums
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parents:
4846
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changeset
|
810 #ifdef HAVE_BIGNUM |
|
6772ce4d982b
Fix hash tables, #'member*, #'assoc*, #'eql compiler macros if bignums
Aidan Kehoe <kehoea@parhasard.net>
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diff
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|
811 else if (BIGNUMP (index_)) |
|
6772ce4d982b
Fix hash tables, #'member*, #'assoc*, #'eql compiler macros if bignums
Aidan Kehoe <kehoea@parhasard.net>
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diff
changeset
|
812 { |
|
6772ce4d982b
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changeset
|
813 Lisp_Object canon = Fcanonicalize_number (index_); |
|
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Fix hash tables, #'member*, #'assoc*, #'eql compiler macros if bignums
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diff
changeset
|
814 if (EQ (canon, index_)) |
|
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Fix hash tables, #'member*, #'assoc*, #'eql compiler macros if bignums
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|
815 { |
|
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|
816 /* We don't support non-fixnum indices. */ |
|
6772ce4d982b
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4846
diff
changeset
|
817 goto range_error; |
|
6772ce4d982b
Fix hash tables, #'member*, #'assoc*, #'eql compiler macros if bignums
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|
818 } |
|
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diff
changeset
|
819 index_ = canon; |
|
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Fix hash tables, #'member*, #'assoc*, #'eql compiler macros if bignums
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diff
changeset
|
820 goto retry; |
|
6772ce4d982b
Fix hash tables, #'member*, #'assoc*, #'eql compiler macros if bignums
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diff
changeset
|
821 } |
|
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diff
changeset
|
822 #endif |
| 428 | 823 else |
| 824 { | |
| 825 index_ = wrong_type_argument (Qinteger_or_char_p, index_); | |
| 826 goto retry; | |
| 827 } | |
| 828 | |
| 829 if (idx < 0) goto range_error; | |
| 830 | |
| 771 | 831 CHECK_LISP_WRITEABLE (array); |
| 428 | 832 if (VECTORP (array)) |
| 833 { | |
| 834 if (idx >= XVECTOR_LENGTH (array)) goto range_error; | |
| 835 XVECTOR_DATA (array)[idx] = newval; | |
| 836 } | |
| 837 else if (BIT_VECTORP (array)) | |
| 838 { | |
| 647 | 839 if (idx >= (EMACS_INT) bit_vector_length (XBIT_VECTOR (array))) |
| 840 goto range_error; | |
| 428 | 841 CHECK_BIT (newval); |
| 842 set_bit_vector_bit (XBIT_VECTOR (array), idx, !ZEROP (newval)); | |
| 843 } | |
| 844 else if (STRINGP (array)) | |
| 845 { | |
| 846 CHECK_CHAR_COERCE_INT (newval); | |
| 826 | 847 if (idx >= string_char_length (array)) goto range_error; |
| 793 | 848 set_string_char (array, idx, XCHAR (newval)); |
| 428 | 849 bump_string_modiff (array); |
| 850 } | |
| 851 else | |
| 852 { | |
| 853 array = wrong_type_argument (Qarrayp, array); | |
| 854 goto retry; | |
| 855 } | |
| 856 | |
| 857 return newval; | |
| 858 | |
| 859 range_error: | |
| 860 args_out_of_range (array, index_); | |
| 1204 | 861 RETURN_NOT_REACHED (Qnil); |
| 428 | 862 } |
| 863 | |
| 864 | |
| 865 /**********************************************************************/ | |
| 866 /* Arithmetic functions */ | |
| 867 /**********************************************************************/ | |
| 2001 | 868 #ifndef WITH_NUMBER_TYPES |
| 428 | 869 typedef struct |
| 870 { | |
| 871 int int_p; | |
| 872 union | |
| 873 { | |
| 874 EMACS_INT ival; | |
| 875 double dval; | |
| 876 } c; | |
| 877 } int_or_double; | |
| 878 | |
| 879 static void | |
| 880 number_char_or_marker_to_int_or_double (Lisp_Object obj, int_or_double *p) | |
| 881 { | |
| 882 retry: | |
| 883 p->int_p = 1; | |
| 884 if (INTP (obj)) p->c.ival = XINT (obj); | |
| 885 else if (CHARP (obj)) p->c.ival = XCHAR (obj); | |
| 886 else if (MARKERP (obj)) p->c.ival = marker_position (obj); | |
| 887 else if (FLOATP (obj)) p->c.dval = XFLOAT_DATA (obj), p->int_p = 0; | |
| 888 else | |
| 889 { | |
| 890 obj = wrong_type_argument (Qnumber_char_or_marker_p, obj); | |
| 891 goto retry; | |
| 892 } | |
| 893 } | |
| 894 | |
| 895 static double | |
| 896 number_char_or_marker_to_double (Lisp_Object obj) | |
| 897 { | |
| 898 retry: | |
| 899 if (INTP (obj)) return (double) XINT (obj); | |
| 900 else if (CHARP (obj)) return (double) XCHAR (obj); | |
| 901 else if (MARKERP (obj)) return (double) marker_position (obj); | |
| 902 else if (FLOATP (obj)) return XFLOAT_DATA (obj); | |
| 903 else | |
| 904 { | |
| 905 obj = wrong_type_argument (Qnumber_char_or_marker_p, obj); | |
| 906 goto retry; | |
| 907 } | |
| 908 } | |
| 2001 | 909 #endif /* WITH_NUMBER_TYPES */ |
| 428 | 910 |
| 911 static EMACS_INT | |
|
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912 fixnum_char_or_marker_to_int (Lisp_Object obj) |
| 428 | 913 { |
| 914 retry: | |
| 915 if (INTP (obj)) return XINT (obj); | |
| 916 else if (CHARP (obj)) return XCHAR (obj); | |
| 917 else if (MARKERP (obj)) return marker_position (obj); | |
| 918 else | |
| 919 { | |
|
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920 /* On bignum builds, we can only be called from #'lognot, which |
|
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|
921 protects against this happening: */ |
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|
922 assert (!BIGNUMP (obj)); |
| 428 | 923 obj = wrong_type_argument (Qinteger_char_or_marker_p, obj); |
| 924 goto retry; | |
| 925 } | |
| 926 } | |
| 927 | |
| 1983 | 928 #ifdef WITH_NUMBER_TYPES |
| 929 | |
| 930 #ifdef HAVE_BIGNUM | |
| 931 #define BIGNUM_CASE(op) \ | |
| 932 case BIGNUM_T: \ | |
| 933 if (!bignum_##op (XBIGNUM_DATA (obj1), XBIGNUM_DATA (obj2))) \ | |
| 934 return Qnil; \ | |
| 935 break; | |
| 936 #else | |
| 937 #define BIGNUM_CASE(op) | |
| 938 #endif /* HAVE_BIGNUM */ | |
| 939 | |
| 940 #ifdef HAVE_RATIO | |
| 941 #define RATIO_CASE(op) \ | |
| 942 case RATIO_T: \ | |
| 943 if (!ratio_##op (XRATIO_DATA (obj1), XRATIO_DATA (obj2))) \ | |
| 944 return Qnil; \ | |
| 945 break; | |
| 946 #else | |
| 947 #define RATIO_CASE(op) | |
| 948 #endif /* HAVE_RATIO */ | |
| 949 | |
| 950 #ifdef HAVE_BIGFLOAT | |
| 951 #define BIGFLOAT_CASE(op) \ | |
| 952 case BIGFLOAT_T: \ | |
| 953 if (!bigfloat_##op (XBIGFLOAT_DATA (obj1), XBIGFLOAT_DATA (obj2))) \ | |
| 954 return Qnil; \ | |
| 955 break; | |
| 956 #else | |
| 957 #define BIGFLOAT_CASE(op) | |
| 958 #endif /* HAVE_BIGFLOAT */ | |
| 959 | |
| 960 #define ARITHCOMPARE_MANY(c_op,op) \ | |
| 961 { \ | |
| 962 REGISTER int i; \ | |
| 963 Lisp_Object obj1, obj2; \ | |
| 964 \ | |
| 965 for (i = 1; i < nargs; i++) \ | |
| 966 { \ | |
| 967 obj1 = args[i - 1]; \ | |
| 968 obj2 = args[i]; \ | |
| 969 switch (promote_args (&obj1, &obj2)) \ | |
| 970 { \ | |
| 971 case FIXNUM_T: \ | |
| 972 if (!(XREALINT (obj1) c_op XREALINT (obj2))) \ | |
| 973 return Qnil; \ | |
| 974 break; \ | |
| 975 BIGNUM_CASE (op) \ | |
| 976 RATIO_CASE (op) \ | |
| 977 case FLOAT_T: \ | |
| 978 if (!(XFLOAT_DATA (obj1) c_op XFLOAT_DATA (obj2))) \ | |
| 979 return Qnil; \ | |
| 980 break; \ | |
| 981 BIGFLOAT_CASE (op) \ | |
| 982 } \ | |
| 983 } \ | |
| 984 return Qt; \ | |
| 985 } | |
| 986 #else /* !WITH_NUMBER_TYPES */ | |
| 987 #define ARITHCOMPARE_MANY(c_op,op) \ | |
| 428 | 988 { \ |
| 989 int_or_double iod1, iod2, *p = &iod1, *q = &iod2; \ | |
| 990 Lisp_Object *args_end = args + nargs; \ | |
| 991 \ | |
| 992 number_char_or_marker_to_int_or_double (*args++, p); \ | |
| 993 \ | |
| 994 while (args < args_end) \ | |
| 995 { \ | |
| 996 number_char_or_marker_to_int_or_double (*args++, q); \ | |
| 997 \ | |
| 998 if (!((p->int_p && q->int_p) ? \ | |
| 1983 | 999 (p->c.ival c_op q->c.ival) : \ |
| 1000 ((p->int_p ? (double) p->c.ival : p->c.dval) c_op \ | |
| 428 | 1001 (q->int_p ? (double) q->c.ival : q->c.dval)))) \ |
| 1002 return Qnil; \ | |
| 1003 \ | |
| 1004 { /* swap */ int_or_double *r = p; p = q; q = r; } \ | |
| 1005 } \ | |
| 1006 return Qt; \ | |
| 1007 } | |
| 1983 | 1008 #endif /* WITH_NUMBER_TYPES */ |
| 428 | 1009 |
| 1010 DEFUN ("=", Feqlsign, 1, MANY, 0, /* | |
| 1011 Return t if all the arguments are numerically equal. | |
| 1012 The arguments may be numbers, characters or markers. | |
|
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1013 |
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1014 arguments: (FIRST &rest ARGS) |
| 428 | 1015 */ |
| 1016 (int nargs, Lisp_Object *args)) | |
| 1017 { | |
| 1983 | 1018 ARITHCOMPARE_MANY (==, eql) |
| 428 | 1019 } |
| 1020 | |
| 1021 DEFUN ("<", Flss, 1, MANY, 0, /* | |
| 1022 Return t if the sequence of arguments is monotonically increasing. | |
| 3343 | 1023 |
| 1024 (That is, if there is a second argument, it must be numerically greater than | |
| 1025 the first. If there is a third, it must be numerically greater than the | |
| 1026 second, and so on.) At least one argument is required. | |
| 1027 | |
| 1028 The arguments may be numbers, characters or markers. | |
|
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1029 |
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1030 arguments: (FIRST &rest ARGS) |
| 428 | 1031 */ |
| 1032 (int nargs, Lisp_Object *args)) | |
| 1033 { | |
| 1983 | 1034 ARITHCOMPARE_MANY (<, lt) |
| 428 | 1035 } |
| 1036 | |
| 1037 DEFUN (">", Fgtr, 1, MANY, 0, /* | |
| 1038 Return t if the sequence of arguments is monotonically decreasing. | |
| 3343 | 1039 |
| 1040 (That is, if there is a second argument, it must be numerically less than | |
| 1041 the first. If there is a third, it must be numerically less than the | |
| 1042 second, and so forth.) At least one argument is required. | |
| 1043 | |
| 428 | 1044 The arguments may be numbers, characters or markers. |
|
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1045 |
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|
1046 arguments: (FIRST &rest ARGS) |
| 428 | 1047 */ |
| 1048 (int nargs, Lisp_Object *args)) | |
| 1049 { | |
| 1983 | 1050 ARITHCOMPARE_MANY (>, gt) |
| 428 | 1051 } |
| 1052 | |
| 1053 DEFUN ("<=", Fleq, 1, MANY, 0, /* | |
| 1054 Return t if the sequence of arguments is monotonically nondecreasing. | |
| 1055 The arguments may be numbers, characters or markers. | |
|
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1056 |
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1057 arguments: (FIRST &rest ARGS) |
| 428 | 1058 */ |
| 1059 (int nargs, Lisp_Object *args)) | |
| 1060 { | |
| 1983 | 1061 ARITHCOMPARE_MANY (<=, le) |
| 428 | 1062 } |
| 1063 | |
| 1064 DEFUN (">=", Fgeq, 1, MANY, 0, /* | |
| 1065 Return t if the sequence of arguments is monotonically nonincreasing. | |
| 1066 The arguments may be numbers, characters or markers. | |
|
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|
1067 |
|
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|
1068 arguments: (FIRST &rest ARGS) |
| 428 | 1069 */ |
| 1070 (int nargs, Lisp_Object *args)) | |
| 1071 { | |
| 1983 | 1072 ARITHCOMPARE_MANY (>=, ge) |
| 428 | 1073 } |
| 1074 | |
| 1983 | 1075 /* Unlike all the other comparisons, this is an O(N*N) algorithm. But who |
| 1076 cares? Inspection of all elisp code distributed by xemacs.org shows that | |
| 1077 it is almost always called with 2 arguments, rarely with 3, and never with | |
| 1078 more than 3. The constant factors of algorithms with better asymptotic | |
| 1079 complexity are higher, which means that those algorithms will run SLOWER | |
| 1080 than this one in the common case. Optimize the common case! */ | |
| 428 | 1081 DEFUN ("/=", Fneq, 1, MANY, 0, /* |
| 1082 Return t if no two arguments are numerically equal. | |
| 1083 The arguments may be numbers, characters or markers. | |
|
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|
1084 |
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|
1085 arguments: (FIRST &rest ARGS) |
| 428 | 1086 */ |
| 1087 (int nargs, Lisp_Object *args)) | |
| 1088 { | |
| 1983 | 1089 #ifdef WITH_NUMBER_TYPES |
| 1090 REGISTER int i, j; | |
| 1091 Lisp_Object obj1, obj2; | |
| 1092 | |
| 1093 for (i = 0; i < nargs - 1; i++) | |
| 1094 { | |
| 1095 obj1 = args[i]; | |
| 1096 for (j = i + 1; j < nargs; j++) | |
| 1097 { | |
| 1098 obj2 = args[j]; | |
| 1099 switch (promote_args (&obj1, &obj2)) | |
| 1100 { | |
| 1101 case FIXNUM_T: | |
| 1102 if (XREALINT (obj1) == XREALINT (obj2)) | |
| 1103 return Qnil; | |
| 1104 break; | |
| 1105 #ifdef HAVE_BIGNUM | |
| 1106 case BIGNUM_T: | |
| 1107 if (bignum_eql (XBIGNUM_DATA (obj1), XBIGNUM_DATA (obj2))) | |
| 1108 return Qnil; | |
| 1109 break; | |
| 1110 #endif | |
| 1111 #ifdef HAVE_RATIO | |
| 1112 case RATIO_T: | |
| 1113 if (ratio_eql (XRATIO_DATA (obj1), XRATIO_DATA (obj2))) | |
| 1114 return Qnil; | |
| 1115 break; | |
| 1116 #endif | |
| 1117 case FLOAT_T: | |
| 1118 if (XFLOAT_DATA (obj1) == XFLOAT_DATA (obj2)) | |
| 1119 return Qnil; | |
| 1120 break; | |
| 1121 #ifdef HAVE_BIGFLOAT | |
| 1122 case BIGFLOAT_T: | |
| 1123 if (bigfloat_eql (XBIGFLOAT_DATA (obj1), XBIGFLOAT_DATA (obj2))) | |
| 1124 return Qnil; | |
| 1125 break; | |
| 1126 #endif | |
| 1127 } | |
| 1128 } | |
| 1129 } | |
| 1130 return Qt; | |
| 1131 #else /* !WITH_NUMBER_TYPES */ | |
| 428 | 1132 Lisp_Object *args_end = args + nargs; |
| 1133 Lisp_Object *p, *q; | |
| 1134 | |
| 1135 /* Unlike all the other comparisons, this is an N*N algorithm. | |
| 1136 We could use a hash table for nargs > 50 to make this linear. */ | |
| 1137 for (p = args; p < args_end; p++) | |
| 1138 { | |
| 1139 int_or_double iod1, iod2; | |
| 1140 number_char_or_marker_to_int_or_double (*p, &iod1); | |
| 1141 | |
| 1142 for (q = p + 1; q < args_end; q++) | |
| 1143 { | |
| 1144 number_char_or_marker_to_int_or_double (*q, &iod2); | |
| 1145 | |
| 1146 if (!((iod1.int_p && iod2.int_p) ? | |
| 1147 (iod1.c.ival != iod2.c.ival) : | |
| 1148 ((iod1.int_p ? (double) iod1.c.ival : iod1.c.dval) != | |
| 1149 (iod2.int_p ? (double) iod2.c.ival : iod2.c.dval)))) | |
| 1150 return Qnil; | |
| 1151 } | |
| 1152 } | |
| 1153 return Qt; | |
| 1983 | 1154 #endif /* WITH_NUMBER_TYPES */ |
| 428 | 1155 } |
| 1156 | |
| 1157 DEFUN ("zerop", Fzerop, 1, 1, 0, /* | |
| 1158 Return t if NUMBER is zero. | |
| 1159 */ | |
| 1160 (number)) | |
| 1161 { | |
| 1162 retry: | |
| 1163 if (INTP (number)) | |
| 1164 return EQ (number, Qzero) ? Qt : Qnil; | |
| 1983 | 1165 #ifdef HAVE_BIGNUM |
| 1166 else if (BIGNUMP (number)) | |
| 1167 return bignum_sign (XBIGNUM_DATA (number)) == 0 ? Qt : Qnil; | |
| 1168 #endif | |
| 1169 #ifdef HAVE_RATIO | |
| 1170 else if (RATIOP (number)) | |
| 1171 return ratio_sign (XRATIO_DATA (number)) == 0 ? Qt : Qnil; | |
| 1172 #endif | |
| 428 | 1173 else if (FLOATP (number)) |
| 1174 return XFLOAT_DATA (number) == 0.0 ? Qt : Qnil; | |
| 1983 | 1175 #ifdef HAVE_BIGFLOAT |
| 1176 else if (BIGFLOATP (number)) | |
| 1177 return bigfloat_sign (XBIGFLOAT_DATA (number)) == 0 ? Qt : Qnil; | |
| 1178 #endif | |
| 428 | 1179 else |
| 1180 { | |
| 1181 number = wrong_type_argument (Qnumberp, number); | |
| 1182 goto retry; | |
| 1183 } | |
| 1184 } | |
| 1185 | |
| 1186 /* Convert between a 32-bit value and a cons of two 16-bit values. | |
| 1187 This is used to pass 32-bit integers to and from the user. | |
| 1188 Use time_to_lisp() and lisp_to_time() for time values. | |
| 1189 | |
| 1190 If you're thinking of using this to store a pointer into a Lisp Object | |
| 1191 for internal purposes (such as when calling record_unwind_protect()), | |
| 1192 try using make_opaque_ptr()/get_opaque_ptr() instead. */ | |
| 1193 Lisp_Object | |
| 1194 word_to_lisp (unsigned int item) | |
| 1195 { | |
| 1196 return Fcons (make_int (item >> 16), make_int (item & 0xffff)); | |
| 1197 } | |
| 1198 | |
| 1199 unsigned int | |
| 1200 lisp_to_word (Lisp_Object item) | |
| 1201 { | |
| 1202 if (INTP (item)) | |
| 1203 return XINT (item); | |
| 1204 else | |
| 1205 { | |
| 1206 Lisp_Object top = Fcar (item); | |
| 1207 Lisp_Object bot = Fcdr (item); | |
| 1208 CHECK_INT (top); | |
| 1209 CHECK_INT (bot); | |
| 1210 return (XINT (top) << 16) | (XINT (bot) & 0xffff); | |
| 1211 } | |
| 1212 } | |
| 1213 | |
| 1214 | |
| 1215 DEFUN ("number-to-string", Fnumber_to_string, 1, 1, 0, /* | |
| 444 | 1216 Convert NUMBER to a string by printing it in decimal. |
| 428 | 1217 Uses a minus sign if negative. |
| 444 | 1218 NUMBER may be an integer or a floating point number. |
| 1983 | 1219 If supported, it may also be a ratio. |
| 428 | 1220 */ |
| 444 | 1221 (number)) |
| 428 | 1222 { |
| 1983 | 1223 CHECK_NUMBER (number); |
| 428 | 1224 |
| 444 | 1225 if (FLOATP (number)) |
| 428 | 1226 { |
| 1227 char pigbuf[350]; /* see comments in float_to_string */ | |
| 1228 | |
| 444 | 1229 float_to_string (pigbuf, XFLOAT_DATA (number)); |
| 428 | 1230 return build_string (pigbuf); |
| 1231 } | |
| 1983 | 1232 #ifdef HAVE_BIGNUM |
| 1233 if (BIGNUMP (number)) | |
| 1234 { | |
| 1235 char *str = bignum_to_string (XBIGNUM_DATA (number), 10); | |
| 1236 Lisp_Object retval = build_string (str); | |
| 1237 xfree (str, char *); | |
| 1238 return retval; | |
| 1239 } | |
| 1240 #endif | |
| 1241 #ifdef HAVE_RATIO | |
| 1242 if (RATIOP (number)) | |
| 1243 { | |
| 1244 char *str = ratio_to_string (XRATIO_DATA (number), 10); | |
| 1245 Lisp_Object retval = build_string (str); | |
| 1246 xfree (str, char *); | |
| 1247 return retval; | |
| 1248 } | |
| 1249 #endif | |
| 1250 #ifdef HAVE_BIGFLOAT | |
| 1251 if (BIGFLOATP (number)) | |
| 1252 { | |
| 1253 char *str = bigfloat_to_string (XBIGFLOAT_DATA (number), 10); | |
| 1254 Lisp_Object retval = build_string (str); | |
| 1255 xfree (str, char *); | |
| 1256 return retval; | |
| 1257 } | |
| 1258 #endif | |
| 428 | 1259 |
| 603 | 1260 { |
| 1261 char buffer[DECIMAL_PRINT_SIZE (long)]; | |
| 1262 | |
| 1263 long_to_string (buffer, XINT (number)); | |
| 1264 return build_string (buffer); | |
| 1265 } | |
| 428 | 1266 } |
| 1267 | |
| 2001 | 1268 #ifndef HAVE_BIGNUM |
| 428 | 1269 static int |
| 1270 digit_to_number (int character, int base) | |
| 1271 { | |
| 1272 /* Assumes ASCII */ | |
| 1273 int digit = ((character >= '0' && character <= '9') ? character - '0' : | |
| 1274 (character >= 'a' && character <= 'z') ? character - 'a' + 10 : | |
| 1275 (character >= 'A' && character <= 'Z') ? character - 'A' + 10 : | |
| 1276 -1); | |
| 1277 | |
| 1278 return digit >= base ? -1 : digit; | |
| 1279 } | |
| 2001 | 1280 #endif |
| 428 | 1281 |
| 1282 DEFUN ("string-to-number", Fstring_to_number, 1, 2, 0, /* | |
| 444 | 1283 Convert STRING to a number by parsing it as a number in base BASE. |
| 428 | 1284 This parses both integers and floating point numbers. |
| 1983 | 1285 If they are supported, it also reads ratios. |
| 428 | 1286 It ignores leading spaces and tabs. |
| 1287 | |
| 444 | 1288 If BASE is nil or omitted, base 10 is used. |
| 1289 BASE must be an integer between 2 and 16 (inclusive). | |
| 428 | 1290 Floating point numbers always use base 10. |
| 1291 */ | |
| 1292 (string, base)) | |
| 1293 { | |
| 1995 | 1294 Ibyte *p; |
| 428 | 1295 int b; |
| 1296 | |
| 1297 CHECK_STRING (string); | |
| 1298 | |
| 1299 if (NILP (base)) | |
| 1300 b = 10; | |
| 1301 else | |
| 1302 { | |
| 1303 CHECK_INT (base); | |
| 1304 b = XINT (base); | |
| 1305 check_int_range (b, 2, 16); | |
| 1306 } | |
| 1307 | |
| 1995 | 1308 p = XSTRING_DATA (string); |
| 428 | 1309 |
| 1310 /* Skip any whitespace at the front of the number. Some versions of | |
| 1311 atoi do this anyway, so we might as well make Emacs lisp consistent. */ | |
| 1312 while (*p == ' ' || *p == '\t') | |
| 1313 p++; | |
| 1314 | |
| 1995 | 1315 if (isfloat_string ((const char *) p) && b == 10) |
| 1983 | 1316 { |
| 1317 #ifdef HAVE_BIGFLOAT | |
| 1318 if (ZEROP (Vdefault_float_precision)) | |
| 1319 #endif | |
| 1995 | 1320 return make_float (atof ((const char *) p)); |
| 1983 | 1321 #ifdef HAVE_BIGFLOAT |
| 1322 else | |
| 1323 { | |
| 2013 | 1324 /* The GMP version of bigfloat_set_string (mpf_set_str) has the |
| 1325 following limitation: if p starts with a '+' sign, it does | |
| 1326 nothing; i.e., it leaves its bigfloat argument untouched. | |
| 1327 Therefore, move p past any leading '+' signs. */ | |
| 2010 | 1328 if (*p == '+') |
| 1329 p++; | |
| 1983 | 1330 bigfloat_set_prec (scratch_bigfloat, bigfloat_get_default_prec ()); |
| 1995 | 1331 bigfloat_set_string (scratch_bigfloat, (const char *) p, b); |
| 1983 | 1332 return make_bigfloat_bf (scratch_bigfloat); |
| 1333 } | |
| 1334 #endif | |
| 1335 } | |
| 1336 | |
| 1337 #ifdef HAVE_RATIO | |
| 1338 if (qxestrchr (p, '/') != NULL) | |
| 1339 { | |
| 2013 | 1340 /* The GMP version of ratio_set_string (mpq_set_str) has the following |
| 1341 limitations: | |
| 1342 - If p starts with a '+' sign, it does nothing; i.e., it leaves its | |
| 1343 ratio argument untouched. | |
| 1344 - If p has a '+' sign after the '/' (e.g., 300/+400), it sets the | |
| 1345 numerator from the string, but *leaves the denominator unchanged*. | |
| 1346 - If p has trailing nonnumeric characters, it sets the numerator from | |
| 1347 the string, but leaves the denominator unchanged. | |
| 1348 - If p has more than one '/', (e.g., 1/2/3), then it sets the | |
| 1349 numerator from the string, but leaves the denominator unchanged. | |
| 1350 | |
| 1351 Therefore, move p past any leading '+' signs, temporarily drop a null | |
| 1352 after the numeric characters we are trying to convert, and then put | |
| 1353 the nulled character back afterward. I am not going to fix problem | |
| 1354 #2; just don't write ratios that look like that. */ | |
| 1355 Ibyte *end, save; | |
| 1356 | |
| 2010 | 1357 if (*p == '+') |
| 1358 p++; | |
| 2013 | 1359 |
| 2014 | 1360 end = p; |
| 1361 if (*end == '-') | |
| 1362 end++; | |
| 1363 while ((*end >= '0' && *end <= '9') || | |
| 2013 | 1364 (b > 10 && *end >= 'a' && *end <= 'a' + b - 11) || |
| 2014 | 1365 (b > 10 && *end >= 'A' && *end <= 'A' + b - 11)) |
| 1366 end++; | |
| 2013 | 1367 if (*end == '/') |
| 2014 | 1368 { |
| 1369 end++; | |
| 1370 if (*end == '-') | |
| 1371 end++; | |
| 1372 while ((*end >= '0' && *end <= '9') || | |
| 1373 (b > 10 && *end >= 'a' && *end <= 'a' + b - 11) || | |
| 1374 (b > 10 && *end >= 'A' && *end <= 'A' + b - 11)) | |
| 1375 end++; | |
| 1376 } | |
| 2013 | 1377 save = *end; |
| 1378 *end = '\0'; | |
| 1995 | 1379 ratio_set_string (scratch_ratio, (const char *) p, b); |
| 2013 | 1380 *end = save; |
| 1381 ratio_canonicalize (scratch_ratio); | |
| 1983 | 1382 return make_ratio_rt (scratch_ratio); |
| 1383 } | |
| 1384 #endif /* HAVE_RATIO */ | |
| 1385 | |
| 1386 #ifdef HAVE_BIGNUM | |
| 2013 | 1387 { |
| 1388 /* The GMP version of bignum_set_string (mpz_set_str) has the following | |
| 1389 limitations: | |
| 1390 - If p starts with a '+' sign, it does nothing; i.e., it leaves its | |
| 1391 bignum argument untouched. | |
| 1392 - If p is the empty string, it does nothing. | |
| 1393 - If p has trailing nonnumeric characters, it does nothing. | |
| 1394 | |
| 1395 Therefore, move p past any leading '+' signs, temporarily drop a null | |
| 1396 after the numeric characters we are trying to convert, special case the | |
| 1397 empty string, and then put the nulled character back afterward. */ | |
| 1398 Ibyte *end, save; | |
| 1399 Lisp_Object retval; | |
| 1400 | |
| 1401 if (*p == '+') | |
| 1402 p++; | |
| 2014 | 1403 end = p; |
| 1404 if (*end == '-') | |
| 1405 end++; | |
| 1406 while ((*end >= '0' && *end <= '9') || | |
| 2013 | 1407 (b > 10 && *end >= 'a' && *end <= 'a' + b - 11) || |
| 2014 | 1408 (b > 10 && *end >= 'A' && *end <= 'A' + b - 11)) |
| 1409 end++; | |
| 2013 | 1410 save = *end; |
| 1411 *end = '\0'; | |
| 1412 if (*p == '\0') | |
| 1413 retval = make_int (0); | |
| 1414 else | |
| 1415 { | |
| 1416 bignum_set_string (scratch_bignum, (const char *) p, b); | |
| 1417 retval = Fcanonicalize_number (make_bignum_bg (scratch_bignum)); | |
| 1418 } | |
| 1419 *end = save; | |
| 1420 return retval; | |
| 1421 } | |
| 1983 | 1422 #else |
| 428 | 1423 if (b == 10) |
| 1424 { | |
| 1425 /* Use the system-provided functions for base 10. */ | |
| 1426 #if SIZEOF_EMACS_INT == SIZEOF_INT | |
| 2054 | 1427 return make_int (atoi ((char*) p)); |
| 428 | 1428 #elif SIZEOF_EMACS_INT == SIZEOF_LONG |
| 2054 | 1429 return make_int (atol ((char*) p)); |
| 428 | 1430 #elif SIZEOF_EMACS_INT == SIZEOF_LONG_LONG |
| 2054 | 1431 return make_int (atoll ((char*) p)); |
| 428 | 1432 #endif |
| 1433 } | |
| 1434 else | |
| 1435 { | |
| 444 | 1436 int negative = 1; |
| 428 | 1437 EMACS_INT v = 0; |
| 1438 | |
| 1439 if (*p == '-') | |
| 1440 { | |
| 1441 negative = -1; | |
| 1442 p++; | |
| 1443 } | |
| 1444 else if (*p == '+') | |
| 1445 p++; | |
| 1446 while (1) | |
| 1447 { | |
| 444 | 1448 int digit = digit_to_number (*p++, b); |
| 428 | 1449 if (digit < 0) |
| 1450 break; | |
| 1451 v = v * b + digit; | |
| 1452 } | |
| 1453 return make_int (negative * v); | |
| 1454 } | |
| 1983 | 1455 #endif /* HAVE_BIGNUM */ |
| 428 | 1456 } |
| 1457 | |
| 1458 | |
| 1459 DEFUN ("+", Fplus, 0, MANY, 0, /* | |
| 1460 Return sum of any number of arguments. | |
| 1461 The arguments should all be numbers, characters or markers. | |
|
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parents:
3355
diff
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|
1462 |
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parents:
3355
diff
changeset
|
1463 arguments: (&rest ARGS) |
| 428 | 1464 */ |
| 1465 (int nargs, Lisp_Object *args)) | |
| 1466 { | |
| 1983 | 1467 #ifdef WITH_NUMBER_TYPES |
| 1468 REGISTER int i; | |
| 1469 Lisp_Object accum = make_int (0), addend; | |
| 1470 | |
| 1471 for (i = 0; i < nargs; i++) | |
| 1472 { | |
| 1473 addend = args[i]; | |
| 1474 switch (promote_args (&accum, &addend)) | |
| 1475 { | |
| 1476 case FIXNUM_T: | |
| 1477 accum = make_integer (XREALINT (accum) + XREALINT (addend)); | |
| 1478 break; | |
| 1479 #ifdef HAVE_BIGNUM | |
| 1480 case BIGNUM_T: | |
| 1481 bignum_add (scratch_bignum, XBIGNUM_DATA (accum), | |
| 1482 XBIGNUM_DATA (addend)); | |
| 1483 accum = make_bignum_bg (scratch_bignum); | |
| 1484 break; | |
| 1485 #endif | |
| 1486 #ifdef HAVE_RATIO | |
| 1487 case RATIO_T: | |
| 1488 ratio_add (scratch_ratio, XRATIO_DATA (accum), | |
| 1489 XRATIO_DATA (addend)); | |
| 1490 accum = make_ratio_rt (scratch_ratio); | |
| 1491 break; | |
| 1492 #endif | |
| 1493 case FLOAT_T: | |
| 1494 accum = make_float (XFLOAT_DATA (accum) + XFLOAT_DATA (addend)); | |
| 1495 break; | |
| 1496 #ifdef HAVE_BIGFLOAT | |
| 1497 case BIGFLOAT_T: | |
| 1498 bigfloat_set_prec (scratch_bigfloat, | |
| 1499 max (XBIGFLOAT_GET_PREC (addend), | |
| 1500 XBIGFLOAT_GET_PREC (accum))); | |
| 1501 bigfloat_add (scratch_bigfloat, XBIGFLOAT_DATA (accum), | |
| 1502 XBIGFLOAT_DATA (addend)); | |
| 1503 accum = make_bigfloat_bf (scratch_bigfloat); | |
| 1504 break; | |
| 1505 #endif | |
| 1506 } | |
| 1507 } | |
| 1508 return Fcanonicalize_number (accum); | |
| 1509 #else /* !WITH_NUMBER_TYPES */ | |
| 428 | 1510 EMACS_INT iaccum = 0; |
| 1511 Lisp_Object *args_end = args + nargs; | |
| 1512 | |
| 1513 while (args < args_end) | |
| 1514 { | |
| 1515 int_or_double iod; | |
| 1516 number_char_or_marker_to_int_or_double (*args++, &iod); | |
| 1517 if (iod.int_p) | |
| 1518 iaccum += iod.c.ival; | |
| 1519 else | |
| 1520 { | |
| 1521 double daccum = (double) iaccum + iod.c.dval; | |
| 1522 while (args < args_end) | |
| 1523 daccum += number_char_or_marker_to_double (*args++); | |
| 1524 return make_float (daccum); | |
| 1525 } | |
| 1526 } | |
| 1527 | |
| 1528 return make_int (iaccum); | |
| 1983 | 1529 #endif /* WITH_NUMBER_TYPES */ |
| 428 | 1530 } |
| 1531 | |
| 1532 DEFUN ("-", Fminus, 1, MANY, 0, /* | |
| 1533 Negate number or subtract numbers, characters or markers. | |
| 1534 With one arg, negates it. With more than one arg, | |
| 1535 subtracts all but the first from the first. | |
|
4693
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Add argument information to remaining MANY or UNEVALLED C subrs.
Aidan Kehoe <kehoea@parhasard.net>
parents:
3355
diff
changeset
|
1536 |
|
80cd90837ac5
Add argument information to remaining MANY or UNEVALLED C subrs.
Aidan Kehoe <kehoea@parhasard.net>
parents:
3355
diff
changeset
|
1537 arguments: (FIRST &rest ARGS) |
| 428 | 1538 */ |
| 1539 (int nargs, Lisp_Object *args)) | |
| 1540 { | |
| 1983 | 1541 #ifdef WITH_NUMBER_TYPES |
| 1542 REGISTER int i; | |
| 1543 Lisp_Object accum = args[0], subtrahend; | |
| 1544 | |
| 1545 if (nargs == 1) | |
| 1546 { | |
| 1547 if (CHARP (accum)) | |
| 1548 accum = make_int (XCHAR (accum)); | |
| 1549 else if (MARKERP (accum)) | |
| 1550 accum = make_int (marker_position (accum)); | |
| 1551 | |
| 1552 /* Invert the sign of accum */ | |
| 1553 CHECK_NUMBER (accum); | |
| 1554 switch (get_number_type (accum)) | |
| 1555 { | |
| 1556 case FIXNUM_T: | |
| 1557 return make_integer (-XREALINT (accum)); | |
| 1558 #ifdef HAVE_BIGNUM | |
| 1559 case BIGNUM_T: | |
| 1560 bignum_neg (scratch_bignum, XBIGNUM_DATA (accum)); | |
| 1561 return Fcanonicalize_number (make_bignum_bg (scratch_bignum)); | |
| 1562 #endif | |
| 1563 #ifdef HAVE_RATIO | |
| 1564 case RATIO_T: | |
| 1565 ratio_neg (scratch_ratio, XRATIO_DATA (accum)); | |
| 1566 return make_ratio_rt (scratch_ratio); | |
| 1567 #endif | |
| 1568 case FLOAT_T: | |
| 1569 return make_float (-XFLOAT_DATA (accum)); | |
| 1570 #ifdef HAVE_BIGFLOAT | |
| 1571 case BIGFLOAT_T: | |
| 1572 bigfloat_set_prec (scratch_bigfloat, XBIGFLOAT_GET_PREC (accum)); | |
| 1573 bigfloat_neg (scratch_bigfloat, XBIGFLOAT_DATA (accum)); | |
| 1574 return make_bigfloat_bf (scratch_bigfloat); | |
| 1575 #endif | |
| 1576 } | |
| 1577 } | |
| 1578 else | |
| 1579 { | |
| 1580 /* Subtrace the remaining arguments from accum */ | |
| 1581 for (i = 1; i < nargs; i++) | |
| 1582 { | |
| 1583 subtrahend = args[i]; | |
| 1584 switch (promote_args (&accum, &subtrahend)) | |
| 1585 { | |
| 1586 case FIXNUM_T: | |
| 1587 accum = make_integer (XREALINT (accum) - XREALINT (subtrahend)); | |
| 1588 break; | |
| 1589 #ifdef HAVE_BIGNUM | |
| 1590 case BIGNUM_T: | |
| 1591 bignum_sub (scratch_bignum, XBIGNUM_DATA (accum), | |
| 1592 XBIGNUM_DATA (subtrahend)); | |
| 1593 accum = make_bignum_bg (scratch_bignum); | |
| 1594 break; | |
| 1595 #endif | |
| 1596 #ifdef HAVE_RATIO | |
| 1597 case RATIO_T: | |
| 1598 ratio_sub (scratch_ratio, XRATIO_DATA (accum), | |
| 1599 XRATIO_DATA (subtrahend)); | |
| 1600 accum = make_ratio_rt (scratch_ratio); | |
| 1601 break; | |
| 1602 #endif | |
| 1603 case FLOAT_T: | |
| 1604 accum = | |
| 1605 make_float (XFLOAT_DATA (accum) - XFLOAT_DATA (subtrahend)); | |
| 1606 break; | |
| 1607 #ifdef HAVE_BIGFLOAT | |
| 1608 case BIGFLOAT_T: | |
| 1609 bigfloat_set_prec (scratch_bigfloat, | |
| 1610 max (XBIGFLOAT_GET_PREC (subtrahend), | |
| 1611 XBIGFLOAT_GET_PREC (accum))); | |
| 1612 bigfloat_sub (scratch_bigfloat, XBIGFLOAT_DATA (accum), | |
| 1613 XBIGFLOAT_DATA (subtrahend)); | |
| 1614 accum = make_bigfloat_bf (scratch_bigfloat); | |
| 1615 break; | |
| 1616 #endif | |
| 1617 } | |
| 1618 } | |
| 1619 } | |
| 1620 return Fcanonicalize_number (accum); | |
| 1621 #else /* !WITH_NUMBER_TYPES */ | |
| 428 | 1622 EMACS_INT iaccum; |
| 1623 double daccum; | |
| 1624 Lisp_Object *args_end = args + nargs; | |
| 1625 int_or_double iod; | |
| 1626 | |
| 1627 number_char_or_marker_to_int_or_double (*args++, &iod); | |
| 1628 if (iod.int_p) | |
| 1629 iaccum = nargs > 1 ? iod.c.ival : - iod.c.ival; | |
| 1630 else | |
| 1631 { | |
| 1632 daccum = nargs > 1 ? iod.c.dval : - iod.c.dval; | |
| 1633 goto do_float; | |
| 1634 } | |
| 1635 | |
| 1636 while (args < args_end) | |
| 1637 { | |
| 1638 number_char_or_marker_to_int_or_double (*args++, &iod); | |
| 1639 if (iod.int_p) | |
| 1640 iaccum -= iod.c.ival; | |
| 1641 else | |
| 1642 { | |
| 1643 daccum = (double) iaccum - iod.c.dval; | |
| 1644 goto do_float; | |
| 1645 } | |
| 1646 } | |
| 1647 | |
| 1648 return make_int (iaccum); | |
| 1649 | |
| 1650 do_float: | |
| 1651 for (; args < args_end; args++) | |
| 1652 daccum -= number_char_or_marker_to_double (*args); | |
| 1653 return make_float (daccum); | |
| 1983 | 1654 #endif /* WITH_NUMBER_TYPES */ |
| 428 | 1655 } |
| 1656 | |
| 1657 DEFUN ("*", Ftimes, 0, MANY, 0, /* | |
| 1658 Return product of any number of arguments. | |
| 1659 The arguments should all be numbers, characters or markers. | |
|
4693
80cd90837ac5
Add argument information to remaining MANY or UNEVALLED C subrs.
Aidan Kehoe <kehoea@parhasard.net>
parents:
3355
diff
changeset
|
1660 |
|
80cd90837ac5
Add argument information to remaining MANY or UNEVALLED C subrs.
Aidan Kehoe <kehoea@parhasard.net>
parents:
3355
diff
changeset
|
1661 arguments: (&rest ARGS) |
| 428 | 1662 */ |
| 1663 (int nargs, Lisp_Object *args)) | |
| 1664 { | |
| 1983 | 1665 #ifdef WITH_NUMBER_TYPES |
| 1666 REGISTER int i; | |
| 1667 /* Start with a bignum to avoid overflow */ | |
| 1668 Lisp_Object accum = make_bignum (1L), multiplier; | |
| 1669 | |
| 1670 for (i = 0; i < nargs; i++) | |
| 1671 { | |
| 1672 multiplier = args[i]; | |
| 1673 switch (promote_args (&accum, &multiplier)) | |
| 1674 { | |
| 1675 #ifdef HAVE_BIGNUM | |
| 1676 case BIGNUM_T: | |
| 1677 bignum_mul (scratch_bignum, XBIGNUM_DATA (accum), | |
| 1678 XBIGNUM_DATA (multiplier)); | |
| 1679 accum = make_bignum_bg (scratch_bignum); | |
| 1680 break; | |
| 1681 #endif | |
| 1682 #ifdef HAVE_RATIO | |
| 1683 case RATIO_T: | |
| 1684 ratio_mul (scratch_ratio, XRATIO_DATA (accum), | |
| 1685 XRATIO_DATA (multiplier)); | |
| 1686 accum = make_ratio_rt (scratch_ratio); | |
| 1687 break; | |
| 1688 #endif | |
| 1689 case FLOAT_T: | |
| 1690 accum = make_float (XFLOAT_DATA (accum) * XFLOAT_DATA (multiplier)); | |
| 1691 break; | |
| 1692 #ifdef HAVE_BIGFLOAT | |
| 1693 case BIGFLOAT_T: | |
| 1694 bigfloat_set_prec (scratch_bigfloat, | |
| 1695 max (XBIGFLOAT_GET_PREC (multiplier), | |
| 1696 XBIGFLOAT_GET_PREC (accum))); | |
| 1697 bigfloat_mul (scratch_bigfloat, XBIGFLOAT_DATA (accum), | |
| 1698 XBIGFLOAT_DATA (multiplier)); | |
| 1699 accum = make_bigfloat_bf (scratch_bigfloat); | |
| 1700 break; | |
| 1701 #endif | |
| 1702 } | |
| 1703 } | |
| 1704 return Fcanonicalize_number (accum); | |
| 1705 #else /* !WITH_NUMBER_TYPES */ | |
| 428 | 1706 EMACS_INT iaccum = 1; |
| 1707 Lisp_Object *args_end = args + nargs; | |
| 1708 | |
| 1709 while (args < args_end) | |
| 1710 { | |
| 1711 int_or_double iod; | |
| 1712 number_char_or_marker_to_int_or_double (*args++, &iod); | |
| 1713 if (iod.int_p) | |
| 1714 iaccum *= iod.c.ival; | |
| 1715 else | |
| 1716 { | |
| 1717 double daccum = (double) iaccum * iod.c.dval; | |
| 1718 while (args < args_end) | |
| 1719 daccum *= number_char_or_marker_to_double (*args++); | |
| 1720 return make_float (daccum); | |
| 1721 } | |
| 1722 } | |
| 1723 | |
| 1724 return make_int (iaccum); | |
| 1983 | 1725 #endif /* WITH_NUMBER_TYPES */ |
| 428 | 1726 } |
| 1727 | |
| 1983 | 1728 #ifdef HAVE_RATIO |
| 1729 DEFUN ("div", Fdiv, 1, MANY, 0, /* | |
| 1730 Same as `/', but dividing integers creates a ratio instead of truncating. | |
| 1731 Note that this is a departure from Common Lisp, where / creates ratios when | |
| 1732 dividing integers. Having a separate function lets us avoid breaking existing | |
| 1733 Emacs Lisp code that expects / to do integer division. | |
|
4693
80cd90837ac5
Add argument information to remaining MANY or UNEVALLED C subrs.
Aidan Kehoe <kehoea@parhasard.net>
parents:
3355
diff
changeset
|
1734 |
|
80cd90837ac5
Add argument information to remaining MANY or UNEVALLED C subrs.
Aidan Kehoe <kehoea@parhasard.net>
parents:
3355
diff
changeset
|
1735 arguments: (FIRST &rest ARGS) |
| 1983 | 1736 */ |
| 1737 (int nargs, Lisp_Object *args)) | |
| 1738 { | |
| 1739 REGISTER int i; | |
| 1740 Lisp_Object accum, divisor; | |
| 1741 | |
| 1742 if (nargs == 1) | |
| 1743 { | |
| 1744 i = 0; | |
| 1745 accum = make_int (1); | |
| 1746 } | |
| 1747 else | |
| 1748 { | |
| 1749 i = 1; | |
| 1750 accum = args[0]; | |
| 1751 } | |
| 1752 for (; i < nargs; i++) | |
| 1753 { | |
| 1754 divisor = args[i]; | |
| 1755 switch (promote_args (&accum, &divisor)) | |
| 1756 { | |
| 1757 case FIXNUM_T: | |
| 1758 if (XREALINT (divisor) == 0) goto divide_by_zero; | |
| 1759 bignum_set_long (scratch_bignum, XREALINT (accum)); | |
| 1760 bignum_set_long (scratch_bignum2, XREALINT (divisor)); | |
| 1761 accum = make_ratio_bg (scratch_bignum, scratch_bignum2); | |
| 1762 break; | |
| 1763 case BIGNUM_T: | |
| 1764 if (bignum_sign (XBIGNUM_DATA (divisor)) == 0) goto divide_by_zero; | |
| 1765 accum = make_ratio_bg (XBIGNUM_DATA (accum), XBIGNUM_DATA (divisor)); | |
| 1766 break; | |
| 1767 case RATIO_T: | |
| 1768 if (ratio_sign (XRATIO_DATA (divisor)) == 0) goto divide_by_zero; | |
| 1769 ratio_div (scratch_ratio, XRATIO_DATA (accum), | |
| 1770 XRATIO_DATA (divisor)); | |
| 1771 accum = make_ratio_rt (scratch_ratio); | |
| 1772 break; | |
| 1773 case FLOAT_T: | |
| 1774 if (XFLOAT_DATA (divisor) == 0.0) goto divide_by_zero; | |
| 1775 accum = make_float (XFLOAT_DATA (accum) / XFLOAT_DATA (divisor)); | |
| 1776 break; | |
| 1777 #ifdef HAVE_BIGFLOAT | |
| 1778 case BIGFLOAT_T: | |
| 1779 if (bigfloat_sign (XBIGFLOAT_DATA (divisor)) == 0) | |
| 1780 goto divide_by_zero; | |
| 1781 bigfloat_set_prec (scratch_bigfloat, | |
| 1782 max (XBIGFLOAT_GET_PREC (divisor), | |
| 1783 XBIGFLOAT_GET_PREC (accum))); | |
| 1784 bigfloat_div (scratch_bigfloat, XBIGFLOAT_DATA (accum), | |
| 1785 XBIGFLOAT_DATA (divisor)); | |
| 1786 accum = make_bigfloat_bf (scratch_bigfloat); | |
| 1787 break; | |
| 1788 #endif | |
| 1789 } | |
| 1790 } | |
| 1791 return Fcanonicalize_number (accum); | |
| 1792 | |
| 1793 divide_by_zero: | |
| 1794 Fsignal (Qarith_error, Qnil); | |
| 1795 return Qnil; /* not (usually) reached */ | |
| 1796 } | |
| 1797 #endif /* HAVE_RATIO */ | |
| 1798 | |
| 428 | 1799 DEFUN ("/", Fquo, 1, MANY, 0, /* |
|
4693
80cd90837ac5
Add argument information to remaining MANY or UNEVALLED C subrs.
Aidan Kehoe <kehoea@parhasard.net>
parents:
3355
diff
changeset
|
1800 Return FIRST divided by all the remaining arguments. |
| 428 | 1801 The arguments must be numbers, characters or markers. |
| 1802 With one argument, reciprocates the argument. | |
|
4693
80cd90837ac5
Add argument information to remaining MANY or UNEVALLED C subrs.
Aidan Kehoe <kehoea@parhasard.net>
parents:
3355
diff
changeset
|
1803 |
|
80cd90837ac5
Add argument information to remaining MANY or UNEVALLED C subrs.
Aidan Kehoe <kehoea@parhasard.net>
parents:
3355
diff
changeset
|
1804 arguments: (FIRST &rest ARGS) |
| 428 | 1805 */ |
| 1806 (int nargs, Lisp_Object *args)) | |
| 1807 { | |
| 1983 | 1808 #ifdef WITH_NUMBER_TYPES |
| 1809 REGISTER int i; | |
| 1810 Lisp_Object accum, divisor; | |
| 1811 | |
| 1812 if (nargs == 1) | |
| 1813 { | |
| 1814 i = 0; | |
| 1815 accum = make_int (1); | |
| 1816 } | |
| 1817 else | |
| 1818 { | |
| 1819 i = 1; | |
| 1820 accum = args[0]; | |
| 1821 } | |
| 1822 for (; i < nargs; i++) | |
| 1823 { | |
| 1824 divisor = args[i]; | |
| 1825 switch (promote_args (&accum, &divisor)) | |
| 1826 { | |
| 1827 case FIXNUM_T: | |
| 1828 if (XREALINT (divisor) == 0) goto divide_by_zero; | |
| 1829 accum = make_integer (XREALINT (accum) / XREALINT (divisor)); | |
| 1830 break; | |
| 1831 #ifdef HAVE_BIGNUM | |
| 1832 case BIGNUM_T: | |
| 1833 if (bignum_sign (XBIGNUM_DATA (divisor)) == 0) goto divide_by_zero; | |
| 1834 bignum_div (scratch_bignum, XBIGNUM_DATA (accum), | |
| 1835 XBIGNUM_DATA (divisor)); | |
| 1836 accum = make_bignum_bg (scratch_bignum); | |
| 1837 break; | |
| 1838 #endif | |
| 1839 #ifdef HAVE_RATIO | |
| 1840 case RATIO_T: | |
| 1841 if (ratio_sign (XRATIO_DATA (divisor)) == 0) goto divide_by_zero; | |
| 1842 ratio_div (scratch_ratio, XRATIO_DATA (accum), | |
| 1843 XRATIO_DATA (divisor)); | |
| 1844 accum = make_ratio_rt (scratch_ratio); | |
| 1845 break; | |
| 1846 #endif | |
| 1847 case FLOAT_T: | |
| 1848 if (XFLOAT_DATA (divisor) == 0.0) goto divide_by_zero; | |
| 1849 accum = make_float (XFLOAT_DATA (accum) / XFLOAT_DATA (divisor)); | |
| 1850 break; | |
| 1851 #ifdef HAVE_BIGFLOAT | |
| 1852 case BIGFLOAT_T: | |
| 1853 if (bigfloat_sign (XBIGFLOAT_DATA (divisor)) == 0) | |
| 1854 goto divide_by_zero; | |
| 1855 bigfloat_set_prec (scratch_bigfloat, | |
| 1856 max (XBIGFLOAT_GET_PREC (divisor), | |
| 1857 XBIGFLOAT_GET_PREC (accum))); | |
| 1858 bigfloat_div (scratch_bigfloat, XBIGFLOAT_DATA (accum), | |
| 1859 XBIGFLOAT_DATA (divisor)); | |
| 1860 accum = make_bigfloat_bf (scratch_bigfloat); | |
| 1861 break; | |
| 1862 #endif | |
| 1863 } | |
| 1864 } | |
| 1865 return Fcanonicalize_number (accum); | |
| 1866 #else /* !WITH_NUMBER_TYPES */ | |
| 428 | 1867 EMACS_INT iaccum; |
| 1868 double daccum; | |
| 1869 Lisp_Object *args_end = args + nargs; | |
| 1870 int_or_double iod; | |
| 1871 | |
| 1872 if (nargs == 1) | |
| 1873 iaccum = 1; | |
| 1874 else | |
| 1875 { | |
| 1876 number_char_or_marker_to_int_or_double (*args++, &iod); | |
| 1877 if (iod.int_p) | |
| 1878 iaccum = iod.c.ival; | |
| 1879 else | |
| 1880 { | |
| 1881 daccum = iod.c.dval; | |
| 1882 goto divide_floats; | |
| 1883 } | |
| 1884 } | |
| 1885 | |
| 1886 while (args < args_end) | |
| 1887 { | |
| 1888 number_char_or_marker_to_int_or_double (*args++, &iod); | |
| 1889 if (iod.int_p) | |
| 1890 { | |
| 1891 if (iod.c.ival == 0) goto divide_by_zero; | |
| 1892 iaccum /= iod.c.ival; | |
| 1893 } | |
| 1894 else | |
| 1895 { | |
| 1896 if (iod.c.dval == 0) goto divide_by_zero; | |
| 1897 daccum = (double) iaccum / iod.c.dval; | |
| 1898 goto divide_floats; | |
| 1899 } | |
| 1900 } | |
| 1901 | |
| 1902 return make_int (iaccum); | |
| 1903 | |
| 1904 divide_floats: | |
| 1905 for (; args < args_end; args++) | |
| 1906 { | |
| 1907 double dval = number_char_or_marker_to_double (*args); | |
| 1908 if (dval == 0) goto divide_by_zero; | |
| 1909 daccum /= dval; | |
| 1910 } | |
| 1911 return make_float (daccum); | |
| 1983 | 1912 #endif /* WITH_NUMBER_TYPES */ |
| 428 | 1913 |
| 1914 divide_by_zero: | |
| 1915 Fsignal (Qarith_error, Qnil); | |
| 801 | 1916 return Qnil; /* not (usually) reached */ |
| 428 | 1917 } |
| 1918 | |
| 1919 DEFUN ("max", Fmax, 1, MANY, 0, /* | |
| 1920 Return largest of all the arguments. | |
| 1983 | 1921 All arguments must be real numbers, characters or markers. |
| 428 | 1922 The value is always a number; markers and characters are converted |
| 1923 to numbers. | |
|
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|
1924 |
|
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Add argument information to remaining MANY or UNEVALLED C subrs.
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|
1925 arguments: (FIRST &rest ARGS) |
| 428 | 1926 */ |
| 1927 (int nargs, Lisp_Object *args)) | |
| 1928 { | |
| 1983 | 1929 #ifdef WITH_NUMBER_TYPES |
| 1930 REGISTER int i, maxindex = 0; | |
| 1931 Lisp_Object comp1, comp2; | |
| 1932 | |
| 1933 while (!(CHARP (args[0]) || MARKERP (args[0]) || REALP (args[0]))) | |
| 1934 args[0] = wrong_type_argument (Qnumber_char_or_marker_p, args[0]); | |
| 1935 if (CHARP (args[0])) | |
| 1936 args[0] = make_int (XCHAR (args[0])); | |
| 1937 else if (MARKERP (args[0])) | |
| 1938 args[0] = make_int (marker_position (args[0])); | |
| 1939 for (i = 1; i < nargs; i++) | |
| 1940 { | |
| 1941 comp1 = args[maxindex]; | |
| 1942 comp2 = args[i]; | |
| 1943 switch (promote_args (&comp1, &comp2)) | |
| 1944 { | |
| 1945 case FIXNUM_T: | |
| 1946 if (XREALINT (comp1) < XREALINT (comp2)) | |
| 1947 maxindex = i; | |
| 1948 break; | |
| 1949 #ifdef HAVE_BIGNUM | |
| 1950 case BIGNUM_T: | |
| 1951 if (bignum_lt (XBIGNUM_DATA (comp1), XBIGNUM_DATA (comp2))) | |
| 1952 maxindex = i; | |
| 1953 break; | |
| 1954 #endif | |
| 1955 #ifdef HAVE_RATIO | |
| 1956 case RATIO_T: | |
| 1957 if (ratio_lt (XRATIO_DATA (comp1), XRATIO_DATA (comp2))) | |
| 1958 maxindex = i; | |
| 1959 break; | |
| 1960 #endif | |
| 1961 case FLOAT_T: | |
| 1962 if (XFLOAT_DATA (comp1) < XFLOAT_DATA (comp2)) | |
| 1963 maxindex = i; | |
| 1964 break; | |
| 1965 #ifdef HAVE_BIGFLOAT | |
| 1966 case BIGFLOAT_T: | |
| 1967 if (bigfloat_lt (XBIGFLOAT_DATA (comp1), XBIGFLOAT_DATA (comp2))) | |
| 1968 maxindex = i; | |
| 1969 break; | |
| 1970 #endif | |
| 1971 } | |
| 1972 } | |
| 1973 return args[maxindex]; | |
| 1974 #else /* !WITH_NUMBER_TYPES */ | |
| 428 | 1975 EMACS_INT imax; |
| 1976 double dmax; | |
| 1977 Lisp_Object *args_end = args + nargs; | |
| 1978 int_or_double iod; | |
| 1979 | |
| 1980 number_char_or_marker_to_int_or_double (*args++, &iod); | |
| 1981 if (iod.int_p) | |
| 1982 imax = iod.c.ival; | |
| 1983 else | |
| 1984 { | |
| 1985 dmax = iod.c.dval; | |
| 1986 goto max_floats; | |
| 1987 } | |
| 1988 | |
| 1989 while (args < args_end) | |
| 1990 { | |
| 1991 number_char_or_marker_to_int_or_double (*args++, &iod); | |
| 1992 if (iod.int_p) | |
| 1993 { | |
| 1994 if (imax < iod.c.ival) imax = iod.c.ival; | |
| 1995 } | |
| 1996 else | |
| 1997 { | |
| 1998 dmax = (double) imax; | |
| 1999 if (dmax < iod.c.dval) dmax = iod.c.dval; | |
| 2000 goto max_floats; | |
| 2001 } | |
| 2002 } | |
| 2003 | |
| 2004 return make_int (imax); | |
| 2005 | |
| 2006 max_floats: | |
| 2007 while (args < args_end) | |
| 2008 { | |
| 2009 double dval = number_char_or_marker_to_double (*args++); | |
| 2010 if (dmax < dval) dmax = dval; | |
| 2011 } | |
| 2012 return make_float (dmax); | |
| 1983 | 2013 #endif /* WITH_NUMBER_TYPES */ |
| 428 | 2014 } |
| 2015 | |
| 2016 DEFUN ("min", Fmin, 1, MANY, 0, /* | |
| 2017 Return smallest of all the arguments. | |
| 2018 All arguments must be numbers, characters or markers. | |
| 2019 The value is always a number; markers and characters are converted | |
| 2020 to numbers. | |
|
4693
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parents:
3355
diff
changeset
|
2021 |
|
80cd90837ac5
Add argument information to remaining MANY or UNEVALLED C subrs.
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parents:
3355
diff
changeset
|
2022 arguments: (FIRST &rest ARGS) |
| 428 | 2023 */ |
| 2024 (int nargs, Lisp_Object *args)) | |
| 2025 { | |
| 1983 | 2026 #ifdef WITH_NUMBER_TYPES |
| 2027 REGISTER int i, minindex = 0; | |
| 2028 Lisp_Object comp1, comp2; | |
| 2029 | |
| 2030 while (!(CHARP (args[0]) || MARKERP (args[0]) || REALP (args[0]))) | |
| 2031 args[0] = wrong_type_argument (Qnumber_char_or_marker_p, args[0]); | |
| 2032 if (CHARP (args[0])) | |
| 2033 args[0] = make_int (XCHAR (args[0])); | |
| 2034 else if (MARKERP (args[0])) | |
| 2035 args[0] = make_int (marker_position (args[0])); | |
| 2036 for (i = 1; i < nargs; i++) | |
| 2037 { | |
| 2038 comp1 = args[minindex]; | |
| 2039 comp2 = args[i]; | |
| 2040 switch (promote_args (&comp1, &comp2)) | |
| 2041 { | |
| 2042 case FIXNUM_T: | |
| 2043 if (XREALINT (comp1) > XREALINT (comp2)) | |
| 2044 minindex = i; | |
| 2045 break; | |
| 2046 #ifdef HAVE_BIGNUM | |
| 2047 case BIGNUM_T: | |
| 2048 if (bignum_gt (XBIGNUM_DATA (comp1), XBIGNUM_DATA (comp2))) | |
| 2049 minindex = i; | |
| 2050 break; | |
| 2051 #endif | |
| 2052 #ifdef HAVE_RATIO | |
| 2053 case RATIO_T: | |
| 2054 if (ratio_gt (XRATIO_DATA (comp1), XRATIO_DATA (comp2))) | |
| 2055 minindex = i; | |
| 2056 break; | |
| 2057 #endif | |
| 2058 case FLOAT_T: | |
| 2059 if (XFLOAT_DATA (comp1) > XFLOAT_DATA (comp2)) | |
| 2060 minindex = i; | |
| 2061 break; | |
| 2062 #ifdef HAVE_BIGFLOAT | |
| 2063 case BIGFLOAT_T: | |
| 2064 if (bigfloat_gt (XBIGFLOAT_DATA (comp1), XBIGFLOAT_DATA (comp2))) | |
| 2065 minindex = i; | |
| 2066 break; | |
| 2067 #endif | |
| 2068 } | |
| 2069 } | |
| 2070 return args[minindex]; | |
| 2071 #else /* !WITH_NUMBER_TYPES */ | |
| 428 | 2072 EMACS_INT imin; |
| 2073 double dmin; | |
| 2074 Lisp_Object *args_end = args + nargs; | |
| 2075 int_or_double iod; | |
| 2076 | |
| 2077 number_char_or_marker_to_int_or_double (*args++, &iod); | |
| 2078 if (iod.int_p) | |
| 2079 imin = iod.c.ival; | |
| 2080 else | |
| 2081 { | |
| 2082 dmin = iod.c.dval; | |
| 2083 goto min_floats; | |
| 2084 } | |
| 2085 | |
| 2086 while (args < args_end) | |
| 2087 { | |
| 2088 number_char_or_marker_to_int_or_double (*args++, &iod); | |
| 2089 if (iod.int_p) | |
| 2090 { | |
| 2091 if (imin > iod.c.ival) imin = iod.c.ival; | |
| 2092 } | |
| 2093 else | |
| 2094 { | |
| 2095 dmin = (double) imin; | |
| 2096 if (dmin > iod.c.dval) dmin = iod.c.dval; | |
| 2097 goto min_floats; | |
| 2098 } | |
| 2099 } | |
| 2100 | |
| 2101 return make_int (imin); | |
| 2102 | |
| 2103 min_floats: | |
| 2104 while (args < args_end) | |
| 2105 { | |
| 2106 double dval = number_char_or_marker_to_double (*args++); | |
| 2107 if (dmin > dval) dmin = dval; | |
| 2108 } | |
| 2109 return make_float (dmin); | |
| 1983 | 2110 #endif /* WITH_NUMBER_TYPES */ |
| 428 | 2111 } |
| 2112 | |
| 2113 DEFUN ("logand", Flogand, 0, MANY, 0, /* | |
| 2114 Return bitwise-and of all the arguments. | |
| 2115 Arguments may be integers, or markers or characters converted to integers. | |
|
4693
80cd90837ac5
Add argument information to remaining MANY or UNEVALLED C subrs.
Aidan Kehoe <kehoea@parhasard.net>
parents:
3355
diff
changeset
|
2116 |
|
80cd90837ac5
Add argument information to remaining MANY or UNEVALLED C subrs.
Aidan Kehoe <kehoea@parhasard.net>
parents:
3355
diff
changeset
|
2117 arguments: (&rest ARGS) |
| 428 | 2118 */ |
| 2119 (int nargs, Lisp_Object *args)) | |
| 2120 { | |
| 1983 | 2121 #ifdef HAVE_BIGNUM |
| 2122 REGISTER int i; | |
| 2123 Lisp_Object result, other; | |
| 2124 | |
| 2125 if (nargs == 0) | |
| 2126 return make_int (~0); | |
| 2127 | |
| 2128 while (!(CHARP (args[0]) || MARKERP (args[0]) || INTEGERP (args[0]))) | |
| 2129 args[0] = wrong_type_argument (Qnumber_char_or_marker_p, args[0]); | |
| 2130 | |
| 2131 result = args[0]; | |
| 2132 if (CHARP (result)) | |
| 2133 result = make_int (XCHAR (result)); | |
| 2134 else if (MARKERP (result)) | |
| 2135 result = make_int (marker_position (result)); | |
| 2136 for (i = 1; i < nargs; i++) | |
| 2137 { | |
| 2138 while (!(CHARP (args[i]) || MARKERP (args[i]) || INTEGERP (args[i]))) | |
| 2139 args[i] = wrong_type_argument (Qnumber_char_or_marker_p, args[i]); | |
| 2140 other = args[i]; | |
| 1995 | 2141 switch (promote_args (&result, &other)) |
| 1983 | 2142 { |
| 2143 case FIXNUM_T: | |
| 1995 | 2144 result = make_int (XREALINT (result) & XREALINT (other)); |
| 1983 | 2145 break; |
| 2146 case BIGNUM_T: | |
| 2147 bignum_and (scratch_bignum, XBIGNUM_DATA (result), | |
| 2148 XBIGNUM_DATA (other)); | |
| 2149 result = make_bignum_bg (scratch_bignum); | |
| 2150 break; | |
| 2151 } | |
| 2152 } | |
| 2153 return Fcanonicalize_number (result); | |
| 2154 #else /* !HAVE_BIGNUM */ | |
| 428 | 2155 EMACS_INT bits = ~0; |
| 2156 Lisp_Object *args_end = args + nargs; | |
| 2157 | |
| 2158 while (args < args_end) | |
|
4885
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Fix hash tables, #'member*, #'assoc*, #'eql compiler macros if bignums
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parents:
4846
diff
changeset
|
2159 bits &= fixnum_char_or_marker_to_int (*args++); |
| 428 | 2160 |
| 2161 return make_int (bits); | |
| 1983 | 2162 #endif /* HAVE_BIGNUM */ |
| 428 | 2163 } |
| 2164 | |
| 2165 DEFUN ("logior", Flogior, 0, MANY, 0, /* | |
| 2166 Return bitwise-or of all the arguments. | |
| 2167 Arguments may be integers, or markers or characters converted to integers. | |
|
4693
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Add argument information to remaining MANY or UNEVALLED C subrs.
Aidan Kehoe <kehoea@parhasard.net>
parents:
3355
diff
changeset
|
2168 |
|
80cd90837ac5
Add argument information to remaining MANY or UNEVALLED C subrs.
Aidan Kehoe <kehoea@parhasard.net>
parents:
3355
diff
changeset
|
2169 arguments: (&rest ARGS) |
| 428 | 2170 */ |
| 2171 (int nargs, Lisp_Object *args)) | |
| 2172 { | |
| 1983 | 2173 #ifdef HAVE_BIGNUM |
| 2174 REGISTER int i; | |
| 2175 Lisp_Object result, other; | |
| 2176 | |
| 2177 if (nargs == 0) | |
| 2178 return make_int (0); | |
| 2179 | |
| 2180 while (!(CHARP (args[0]) || MARKERP (args[0]) || INTEGERP (args[0]))) | |
| 2181 args[0] = wrong_type_argument (Qnumber_char_or_marker_p, args[0]); | |
| 2182 | |
| 2183 result = args[0]; | |
| 2184 if (CHARP (result)) | |
| 2185 result = make_int (XCHAR (result)); | |
| 2186 else if (MARKERP (result)) | |
| 2187 result = make_int (marker_position (result)); | |
| 2188 for (i = 1; i < nargs; i++) | |
| 2189 { | |
| 2190 while (!(CHARP (args[i]) || MARKERP (args[i]) || INTEGERP (args[i]))) | |
| 2191 args[i] = wrong_type_argument (Qnumber_char_or_marker_p, args[i]); | |
| 2192 other = args[i]; | |
| 2193 switch (promote_args (&result, &other)) | |
| 2194 { | |
| 2195 case FIXNUM_T: | |
| 1992 | 2196 result = make_int (XREALINT (result) | XREALINT (other)); |
| 1983 | 2197 break; |
| 2198 case BIGNUM_T: | |
| 2199 bignum_ior (scratch_bignum, XBIGNUM_DATA (result), | |
| 2200 XBIGNUM_DATA (other)); | |
| 2201 result = make_bignum_bg (scratch_bignum); | |
| 2202 break; | |
| 2203 } | |
| 2204 } | |
| 2205 return Fcanonicalize_number (result); | |
| 2206 #else /* !HAVE_BIGNUM */ | |
| 428 | 2207 EMACS_INT bits = 0; |
| 2208 Lisp_Object *args_end = args + nargs; | |
| 2209 | |
| 2210 while (args < args_end) | |
|
4885
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Fix hash tables, #'member*, #'assoc*, #'eql compiler macros if bignums
Aidan Kehoe <kehoea@parhasard.net>
parents:
4846
diff
changeset
|
2211 bits |= fixnum_char_or_marker_to_int (*args++); |
| 428 | 2212 |
| 2213 return make_int (bits); | |
| 1983 | 2214 #endif /* HAVE_BIGNUM */ |
| 428 | 2215 } |
| 2216 | |
| 2217 DEFUN ("logxor", Flogxor, 0, MANY, 0, /* | |
| 2218 Return bitwise-exclusive-or of all the arguments. | |
| 2219 Arguments may be integers, or markers or characters converted to integers. | |
|
4693
80cd90837ac5
Add argument information to remaining MANY or UNEVALLED C subrs.
Aidan Kehoe <kehoea@parhasard.net>
parents:
3355
diff
changeset
|
2220 |
|
80cd90837ac5
Add argument information to remaining MANY or UNEVALLED C subrs.
Aidan Kehoe <kehoea@parhasard.net>
parents:
3355
diff
changeset
|
2221 arguments: (&rest ARGS) |
| 428 | 2222 */ |
| 2223 (int nargs, Lisp_Object *args)) | |
| 2224 { | |
| 1983 | 2225 #ifdef HAVE_BIGNUM |
| 2226 REGISTER int i; | |
| 2227 Lisp_Object result, other; | |
| 2228 | |
| 2229 if (nargs == 0) | |
| 2230 return make_int (0); | |
| 2231 | |
| 2232 while (!(CHARP (args[0]) || MARKERP (args[0]) || INTEGERP (args[0]))) | |
|
4885
6772ce4d982b
Fix hash tables, #'member*, #'assoc*, #'eql compiler macros if bignums
Aidan Kehoe <kehoea@parhasard.net>
parents:
4846
diff
changeset
|
2233 args[0] = wrong_type_argument (Qinteger_char_or_marker_p, args[0]); |
| 1983 | 2234 |
| 2235 result = args[0]; | |
| 2236 if (CHARP (result)) | |
| 2237 result = make_int (XCHAR (result)); | |
| 2238 else if (MARKERP (result)) | |
| 2239 result = make_int (marker_position (result)); | |
| 2240 for (i = 1; i < nargs; i++) | |
| 2241 { | |
| 2242 while (!(CHARP (args[i]) || MARKERP (args[i]) || INTEGERP (args[i]))) | |
|
4885
6772ce4d982b
Fix hash tables, #'member*, #'assoc*, #'eql compiler macros if bignums
Aidan Kehoe <kehoea@parhasard.net>
parents:
4846
diff
changeset
|
2243 args[i] = wrong_type_argument (Qinteger_char_or_marker_p, args[i]); |
| 1983 | 2244 other = args[i]; |
| 2245 if (promote_args (&result, &other) == FIXNUM_T) | |
| 2246 { | |
| 2247 result = make_int (XREALINT (result) ^ XREALINT (other)); | |
| 2248 } | |
| 2249 else | |
| 2250 { | |
| 2251 bignum_xor (scratch_bignum, XBIGNUM_DATA (result), | |
| 2252 XBIGNUM_DATA (other)); | |
| 2253 result = make_bignum_bg (scratch_bignum); | |
| 2254 } | |
| 2255 } | |
| 2256 return Fcanonicalize_number (result); | |
| 2257 #else /* !HAVE_BIGNUM */ | |
| 428 | 2258 EMACS_INT bits = 0; |
| 2259 Lisp_Object *args_end = args + nargs; | |
| 2260 | |
| 2261 while (args < args_end) | |
|
4885
6772ce4d982b
Fix hash tables, #'member*, #'assoc*, #'eql compiler macros if bignums
Aidan Kehoe <kehoea@parhasard.net>
parents:
4846
diff
changeset
|
2262 bits ^= fixnum_char_or_marker_to_int (*args++); |
| 428 | 2263 |
| 2264 return make_int (bits); | |
| 1983 | 2265 #endif /* !HAVE_BIGNUM */ |
| 428 | 2266 } |
| 2267 | |
| 2268 DEFUN ("lognot", Flognot, 1, 1, 0, /* | |
| 2269 Return the bitwise complement of NUMBER. | |
| 2270 NUMBER may be an integer, marker or character converted to integer. | |
| 2271 */ | |
| 2272 (number)) | |
| 2273 { | |
|
4885
6772ce4d982b
Fix hash tables, #'member*, #'assoc*, #'eql compiler macros if bignums
Aidan Kehoe <kehoea@parhasard.net>
parents:
4846
diff
changeset
|
2274 while (!(CHARP (number) || MARKERP (number) || INTEGERP (number))) |
|
6772ce4d982b
Fix hash tables, #'member*, #'assoc*, #'eql compiler macros if bignums
Aidan Kehoe <kehoea@parhasard.net>
parents:
4846
diff
changeset
|
2275 number = wrong_type_argument (Qinteger_char_or_marker_p, number); |
|
6772ce4d982b
Fix hash tables, #'member*, #'assoc*, #'eql compiler macros if bignums
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parents:
4846
diff
changeset
|
2276 |
| 1983 | 2277 #ifdef HAVE_BIGNUM |
| 2278 if (BIGNUMP (number)) | |
| 2279 { | |
| 2280 bignum_not (scratch_bignum, XBIGNUM_DATA (number)); | |
| 2281 return make_bignum_bg (scratch_bignum); | |
| 2282 } | |
| 2283 #endif /* HAVE_BIGNUM */ | |
|
4885
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parents:
4846
diff
changeset
|
2284 |
|
6772ce4d982b
Fix hash tables, #'member*, #'assoc*, #'eql compiler macros if bignums
Aidan Kehoe <kehoea@parhasard.net>
parents:
4846
diff
changeset
|
2285 return make_int (~ fixnum_char_or_marker_to_int (number)); |
| 428 | 2286 } |
| 2287 | |
| 2288 DEFUN ("%", Frem, 2, 2, 0, /* | |
| 2289 Return remainder of first arg divided by second. | |
| 2290 Both must be integers, characters or markers. | |
| 2291 */ | |
| 444 | 2292 (number1, number2)) |
| 428 | 2293 { |
| 1983 | 2294 #ifdef HAVE_BIGNUM |
| 2295 while (!(CHARP (number1) || MARKERP (number1) || INTEGERP (number1))) | |
| 2296 number1 = wrong_type_argument (Qnumber_char_or_marker_p, number1); | |
| 2297 while (!(CHARP (number2) || MARKERP (number2) || INTEGERP (number2))) | |
| 2298 number2 = wrong_type_argument (Qnumber_char_or_marker_p, number2); | |
| 2299 | |
| 2300 if (promote_args (&number1, &number2) == FIXNUM_T) | |
| 2301 { | |
| 2302 if (XREALINT (number2) == 0) | |
| 2303 Fsignal (Qarith_error, Qnil); | |
| 2304 return make_int (XREALINT (number1) % XREALINT (number2)); | |
| 2305 } | |
| 2306 else | |
| 2307 { | |
| 2308 if (bignum_sign (XBIGNUM_DATA (number2)) == 0) | |
| 2309 Fsignal (Qarith_error, Qnil); | |
| 2310 bignum_mod (scratch_bignum, XBIGNUM_DATA (number1), | |
| 2311 XBIGNUM_DATA (number2)); | |
| 2312 return Fcanonicalize_number (make_bignum_bg (scratch_bignum)); | |
| 2313 } | |
| 2314 #else /* !HAVE_BIGNUM */ | |
|
4885
6772ce4d982b
Fix hash tables, #'member*, #'assoc*, #'eql compiler macros if bignums
Aidan Kehoe <kehoea@parhasard.net>
parents:
4846
diff
changeset
|
2315 EMACS_INT ival1 = fixnum_char_or_marker_to_int (number1); |
|
6772ce4d982b
Fix hash tables, #'member*, #'assoc*, #'eql compiler macros if bignums
Aidan Kehoe <kehoea@parhasard.net>
parents:
4846
diff
changeset
|
2316 EMACS_INT ival2 = fixnum_char_or_marker_to_int (number2); |
| 428 | 2317 |
| 2318 if (ival2 == 0) | |
| 2319 Fsignal (Qarith_error, Qnil); | |
| 2320 | |
| 2321 return make_int (ival1 % ival2); | |
| 1983 | 2322 #endif /* HAVE_BIGNUM */ |
| 428 | 2323 } |
| 2324 | |
| 2325 /* Note, ANSI *requires* the presence of the fmod() library routine. | |
| 2326 If your system doesn't have it, complain to your vendor, because | |
| 2327 that is a bug. */ | |
| 2328 | |
| 2329 #ifndef HAVE_FMOD | |
| 2330 double | |
| 2331 fmod (double f1, double f2) | |
| 2332 { | |
| 2333 if (f2 < 0.0) | |
| 2334 f2 = -f2; | |
| 2335 return f1 - f2 * floor (f1/f2); | |
| 2336 } | |
| 2337 #endif /* ! HAVE_FMOD */ | |
| 2338 | |
| 2339 | |
| 2340 DEFUN ("mod", Fmod, 2, 2, 0, /* | |
| 2341 Return X modulo Y. | |
| 2342 The result falls between zero (inclusive) and Y (exclusive). | |
| 2343 Both X and Y must be numbers, characters or markers. | |
| 2344 If either argument is a float, a float will be returned. | |
| 2345 */ | |
| 2346 (x, y)) | |
| 2347 { | |
| 1983 | 2348 #ifdef WITH_NUMBER_TYPES |
| 2349 while (!(CHARP (x) || MARKERP (x) || REALP (x))) | |
| 2350 x = wrong_type_argument (Qnumber_char_or_marker_p, x); | |
| 2351 while (!(CHARP (y) || MARKERP (y) || REALP (y))) | |
| 2352 y = wrong_type_argument (Qnumber_char_or_marker_p, y); | |
| 2353 switch (promote_args (&x, &y)) | |
| 2354 { | |
| 2355 case FIXNUM_T: | |
| 2356 { | |
| 2357 EMACS_INT ival; | |
| 2358 if (XREALINT (y) == 0) goto divide_by_zero; | |
| 2359 ival = XREALINT (x) % XREALINT (y); | |
| 2360 /* If the "remainder" comes out with the wrong sign, fix it. */ | |
| 2361 if (XREALINT (y) < 0 ? ival > 0 : ival < 0) | |
| 2362 ival += XREALINT (y); | |
| 2363 return make_int (ival); | |
| 2364 } | |
| 2365 #ifdef HAVE_BIGNUM | |
| 2366 case BIGNUM_T: | |
| 2367 if (bignum_sign (XBIGNUM_DATA (y)) == 0) goto divide_by_zero; | |
| 2368 bignum_mod (scratch_bignum, XBIGNUM_DATA (x), XBIGNUM_DATA (y)); | |
| 2369 return Fcanonicalize_number (make_bignum_bg (scratch_bignum)); | |
| 2370 #endif | |
| 2371 #ifdef HAVE_RATIO | |
| 2372 case RATIO_T: | |
| 2373 if (ratio_sign (XRATIO_DATA (y)) == 0) goto divide_by_zero; | |
| 2374 ratio_div (scratch_ratio, XRATIO_DATA (x), XRATIO_DATA (y)); | |
| 2375 bignum_div (scratch_bignum, ratio_numerator (scratch_ratio), | |
| 2376 ratio_denominator (scratch_ratio)); | |
| 2377 ratio_set_bignum (scratch_ratio, scratch_bignum); | |
| 2378 ratio_mul (scratch_ratio, scratch_ratio, XRATIO_DATA (y)); | |
| 2379 ratio_sub (scratch_ratio, XRATIO_DATA (x), scratch_ratio); | |
| 2380 return Fcanonicalize_number (make_ratio_rt (scratch_ratio)); | |
| 2381 #endif | |
| 2382 case FLOAT_T: | |
| 2383 { | |
| 2384 double dval; | |
| 2385 if (XFLOAT_DATA (y) == 0.0) goto divide_by_zero; | |
| 2386 dval = fmod (XFLOAT_DATA (x), XFLOAT_DATA (y)); | |
| 2387 /* If the "remainder" comes out with the wrong sign, fix it. */ | |
| 2388 if (XFLOAT_DATA (y) < 0 ? dval > 0 : dval < 0) | |
| 2389 dval += XFLOAT_DATA (y); | |
| 2390 return make_float (dval); | |
| 2391 } | |
| 2392 #ifdef HAVE_BIGFLOAT | |
| 2393 case BIGFLOAT_T: | |
| 2394 bigfloat_set_prec (scratch_bigfloat, | |
| 2395 max (XBIGFLOAT_GET_PREC (x), XBIGFLOAT_GET_PREC (y))); | |
| 2396 bigfloat_div (scratch_bigfloat, XBIGFLOAT_DATA (x), XBIGFLOAT_DATA (y)); | |
| 2397 bigfloat_trunc (scratch_bigfloat, scratch_bigfloat); | |
| 2398 bigfloat_mul (scratch_bigfloat, scratch_bigfloat, XBIGFLOAT_DATA (y)); | |
| 2399 bigfloat_sub (scratch_bigfloat, XBIGFLOAT_DATA (x), scratch_bigfloat); | |
| 2400 return make_bigfloat_bf (scratch_bigfloat); | |
| 2401 #endif | |
| 2402 } | |
| 2403 #else /* !WITH_NUMBER_TYPES */ | |
| 428 | 2404 int_or_double iod1, iod2; |
| 2405 number_char_or_marker_to_int_or_double (x, &iod1); | |
| 2406 number_char_or_marker_to_int_or_double (y, &iod2); | |
| 2407 | |
| 2408 if (!iod1.int_p || !iod2.int_p) | |
| 2409 { | |
| 2410 double dval1 = iod1.int_p ? (double) iod1.c.ival : iod1.c.dval; | |
| 2411 double dval2 = iod2.int_p ? (double) iod2.c.ival : iod2.c.dval; | |
| 2412 if (dval2 == 0) goto divide_by_zero; | |
| 2413 dval1 = fmod (dval1, dval2); | |
| 2414 | |
| 2415 /* If the "remainder" comes out with the wrong sign, fix it. */ | |
| 2416 if (dval2 < 0 ? dval1 > 0 : dval1 < 0) | |
| 2417 dval1 += dval2; | |
| 2418 | |
| 2419 return make_float (dval1); | |
| 2420 } | |
| 1104 | 2421 |
| 428 | 2422 { |
| 2423 EMACS_INT ival; | |
| 2424 if (iod2.c.ival == 0) goto divide_by_zero; | |
| 2425 | |
| 2426 ival = iod1.c.ival % iod2.c.ival; | |
| 2427 | |
| 2428 /* If the "remainder" comes out with the wrong sign, fix it. */ | |
| 2429 if (iod2.c.ival < 0 ? ival > 0 : ival < 0) | |
| 2430 ival += iod2.c.ival; | |
| 2431 | |
| 2432 return make_int (ival); | |
| 2433 } | |
| 1983 | 2434 #endif /* WITH_NUMBER_TYPES */ |
| 428 | 2435 |
| 2436 divide_by_zero: | |
| 2437 Fsignal (Qarith_error, Qnil); | |
| 801 | 2438 return Qnil; /* not (usually) reached */ |
| 428 | 2439 } |
| 2440 | |
| 2441 DEFUN ("ash", Fash, 2, 2, 0, /* | |
| 2442 Return VALUE with its bits shifted left by COUNT. | |
| 2443 If COUNT is negative, shifting is actually to the right. | |
| 2444 In this case, the sign bit is duplicated. | |
| 1983 | 2445 This function cannot be applied to bignums, as there is no leftmost sign bit |
| 2446 to be duplicated. Use `lsh' instead. | |
| 428 | 2447 */ |
| 2448 (value, count)) | |
| 2449 { | |
| 2450 CHECK_INT_COERCE_CHAR (value); | |
| 2451 CONCHECK_INT (count); | |
| 2452 | |
| 2453 return make_int (XINT (count) > 0 ? | |
| 2454 XINT (value) << XINT (count) : | |
| 2455 XINT (value) >> -XINT (count)); | |
| 2456 } | |
| 2457 | |
| 2458 DEFUN ("lsh", Flsh, 2, 2, 0, /* | |
| 2459 Return VALUE with its bits shifted left by COUNT. | |
| 2460 If COUNT is negative, shifting is actually to the right. | |
| 2461 In this case, zeros are shifted in on the left. | |
| 2462 */ | |
| 2463 (value, count)) | |
| 2464 { | |
| 1983 | 2465 #ifdef HAVE_BIGNUM |
| 2466 while (!(CHARP (value) || MARKERP (value) || INTEGERP (value))) | |
| 2467 wrong_type_argument (Qnumber_char_or_marker_p, value); | |
| 2468 CONCHECK_INTEGER (count); | |
| 2469 | |
| 2470 if (promote_args (&value, &count) == FIXNUM_T) | |
| 2471 { | |
| 2472 if (XREALINT (count) <= 0) | |
| 2473 return make_int (XREALINT (value) >> -XREALINT (count)); | |
| 2474 /* Use bignums to avoid overflow */ | |
| 2475 bignum_set_long (scratch_bignum2, XREALINT (value)); | |
| 2476 bignum_lshift (scratch_bignum, scratch_bignum2, XREALINT (count)); | |
| 2477 return Fcanonicalize_number (make_bignum_bg (scratch_bignum)); | |
| 2478 } | |
| 2479 else | |
| 2480 { | |
| 2481 if (bignum_sign (XBIGNUM_DATA (count)) <= 0) | |
| 2482 { | |
| 2483 bignum_neg (scratch_bignum, XBIGNUM_DATA (count)); | |
| 2484 if (!bignum_fits_ulong_p (scratch_bignum)) | |
| 2485 args_out_of_range (Qnumber_char_or_marker_p, count); | |
| 2486 bignum_rshift (scratch_bignum2, XBIGNUM_DATA (value), | |
| 2487 bignum_to_ulong (scratch_bignum)); | |
| 2488 } | |
| 2489 else | |
| 2490 { | |
| 2491 if (!bignum_fits_ulong_p (XBIGNUM_DATA (count))) | |
| 2492 args_out_of_range (Qnumber_char_or_marker_p, count); | |
| 2493 bignum_lshift (scratch_bignum2, XBIGNUM_DATA (value), | |
| 2494 bignum_to_ulong (XBIGNUM_DATA (count))); | |
| 2495 } | |
| 2496 return Fcanonicalize_number (make_bignum_bg (scratch_bignum2)); | |
| 2497 } | |
| 2498 #else /* !HAVE_BIGNUM */ | |
| 428 | 2499 CHECK_INT_COERCE_CHAR (value); |
| 2500 CONCHECK_INT (count); | |
| 2501 | |
| 2502 return make_int (XINT (count) > 0 ? | |
| 2503 XUINT (value) << XINT (count) : | |
| 2504 XUINT (value) >> -XINT (count)); | |
| 1983 | 2505 #endif /* HAVE_BIGNUM */ |
| 428 | 2506 } |
| 2507 | |
| 2508 DEFUN ("1+", Fadd1, 1, 1, 0, /* | |
| 2509 Return NUMBER plus one. NUMBER may be a number, character or marker. | |
| 2510 Markers and characters are converted to integers. | |
| 2511 */ | |
| 2512 (number)) | |
| 2513 { | |
| 2514 retry: | |
| 2515 | |
| 1983 | 2516 if (INTP (number)) return make_integer (XINT (number) + 1); |
| 2517 if (CHARP (number)) return make_integer (XCHAR (number) + 1); | |
| 2518 if (MARKERP (number)) return make_integer (marker_position (number) + 1); | |
| 428 | 2519 if (FLOATP (number)) return make_float (XFLOAT_DATA (number) + 1.0); |
| 1983 | 2520 #ifdef HAVE_BIGNUM |
| 2521 if (BIGNUMP (number)) | |
| 2522 { | |
| 2523 bignum_set_long (scratch_bignum, 1L); | |
| 2524 bignum_add (scratch_bignum2, XBIGNUM_DATA (number), scratch_bignum); | |
| 2525 return Fcanonicalize_number (make_bignum_bg (scratch_bignum2)); | |
| 2526 } | |
| 2527 #endif | |
| 2528 #ifdef HAVE_RATIO | |
| 2529 if (RATIOP (number)) | |
| 2530 { | |
| 2531 ratio_set_long (scratch_ratio, 1L); | |
| 2532 ratio_add (scratch_ratio, XRATIO_DATA (number), scratch_ratio); | |
| 2533 /* No need to canonicalize after adding 1 */ | |
| 2534 return make_ratio_rt (scratch_ratio); | |
| 2535 } | |
| 2536 #endif | |
| 2537 #ifdef HAVE_BIGFLOAT | |
| 2538 if (BIGFLOATP (number)) | |
| 2539 { | |
| 2540 bigfloat_set_prec (scratch_bigfloat, XBIGFLOAT_GET_PREC (number)); | |
| 2541 bigfloat_set_long (scratch_bigfloat, 1L); | |
| 2542 bigfloat_add (scratch_bigfloat, XBIGFLOAT_DATA (number), | |
| 2543 scratch_bigfloat); | |
| 2544 return make_bigfloat_bf (scratch_bigfloat); | |
| 2545 } | |
| 2546 #endif | |
| 428 | 2547 |
| 2548 number = wrong_type_argument (Qnumber_char_or_marker_p, number); | |
| 2549 goto retry; | |
| 2550 } | |
| 2551 | |
| 2552 DEFUN ("1-", Fsub1, 1, 1, 0, /* | |
| 2553 Return NUMBER minus one. NUMBER may be a number, character or marker. | |
| 2554 Markers and characters are converted to integers. | |
| 2555 */ | |
| 2556 (number)) | |
| 2557 { | |
| 2558 retry: | |
| 2559 | |
| 1983 | 2560 if (INTP (number)) return make_integer (XINT (number) - 1); |
| 2561 if (CHARP (number)) return make_integer (XCHAR (number) - 1); | |
| 2562 if (MARKERP (number)) return make_integer (marker_position (number) - 1); | |
| 428 | 2563 if (FLOATP (number)) return make_float (XFLOAT_DATA (number) - 1.0); |
| 1983 | 2564 #ifdef HAVE_BIGNUM |
| 2565 if (BIGNUMP (number)) | |
| 2566 { | |
| 2567 bignum_set_long (scratch_bignum, 1L); | |
| 2568 bignum_sub (scratch_bignum2, XBIGNUM_DATA (number), scratch_bignum); | |
| 2569 return Fcanonicalize_number (make_bignum_bg (scratch_bignum2)); | |
| 2570 } | |
| 2571 #endif | |
| 2572 #ifdef HAVE_RATIO | |
| 2573 if (RATIOP (number)) | |
| 2574 { | |
| 2575 ratio_set_long (scratch_ratio, 1L); | |
| 2576 ratio_sub (scratch_ratio, XRATIO_DATA (number), scratch_ratio); | |
| 2577 /* No need to canonicalize after subtracting 1 */ | |
| 2578 return make_ratio_rt (scratch_ratio); | |
| 2579 } | |
| 2580 #endif | |
| 2581 #ifdef HAVE_BIGFLOAT | |
| 2582 if (BIGFLOATP (number)) | |
| 2583 { | |
| 2584 bigfloat_set_prec (scratch_bigfloat, XBIGFLOAT_GET_PREC (number)); | |
| 2585 bigfloat_set_long (scratch_bigfloat, 1L); | |
| 2586 bigfloat_sub (scratch_bigfloat, XBIGFLOAT_DATA (number), | |
| 2587 scratch_bigfloat); | |
| 2588 return make_bigfloat_bf (scratch_bigfloat); | |
| 2589 } | |
| 2590 #endif | |
| 428 | 2591 |
| 2592 number = wrong_type_argument (Qnumber_char_or_marker_p, number); | |
| 2593 goto retry; | |
| 2594 } | |
| 2595 | |
| 2596 | |
| 2597 /************************************************************************/ | |
| 2598 /* weak lists */ | |
| 2599 /************************************************************************/ | |
| 2600 | |
| 2601 /* A weak list is like a normal list except that elements automatically | |
| 2602 disappear when no longer in use, i.e. when no longer GC-protected. | |
| 2603 The basic idea is that we don't mark the elements during GC, but | |
| 2604 wait for them to be marked elsewhere. If they're not marked, we | |
| 2605 remove them. This is analogous to weak hash tables; see the explanation | |
| 2606 there for more info. */ | |
| 2607 | |
| 2608 static Lisp_Object Vall_weak_lists; /* Gemarke es nicht!!! */ | |
| 2609 | |
| 2610 static Lisp_Object encode_weak_list_type (enum weak_list_type type); | |
| 2611 | |
| 2612 static Lisp_Object | |
| 2286 | 2613 mark_weak_list (Lisp_Object UNUSED (obj)) |
| 428 | 2614 { |
| 2615 return Qnil; /* nichts ist gemarkt */ | |
| 2616 } | |
| 2617 | |
| 2618 static void | |
| 2286 | 2619 print_weak_list (Lisp_Object obj, Lisp_Object printcharfun, |
| 2620 int UNUSED (escapeflag)) | |
| 428 | 2621 { |
| 2622 if (print_readably) | |
| 4846 | 2623 printing_unreadable_lcrecord (obj, 0); |
| 428 | 2624 |
| 800 | 2625 write_fmt_string_lisp (printcharfun, "#<weak-list %s %S>", 2, |
| 2626 encode_weak_list_type (XWEAK_LIST (obj)->type), | |
| 2627 XWEAK_LIST (obj)->list); | |
| 428 | 2628 } |
| 2629 | |
| 2630 static int | |
|
4906
6ef8256a020a
implement equalp in C, fix case-folding, add equal() method for keymaps
Ben Wing <ben@xemacs.org>
parents:
4885
diff
changeset
|
2631 weak_list_equal (Lisp_Object obj1, Lisp_Object obj2, int depth, int foldcase) |
| 428 | 2632 { |
| 2633 struct weak_list *w1 = XWEAK_LIST (obj1); | |
| 2634 struct weak_list *w2 = XWEAK_LIST (obj2); | |
| 2635 | |
| 2636 return ((w1->type == w2->type) && | |
|
4906
6ef8256a020a
implement equalp in C, fix case-folding, add equal() method for keymaps
Ben Wing <ben@xemacs.org>
parents:
4885
diff
changeset
|
2637 internal_equal_0 (w1->list, w2->list, depth + 1, foldcase)); |
| 428 | 2638 } |
| 2639 | |
| 665 | 2640 static Hashcode |
| 428 | 2641 weak_list_hash (Lisp_Object obj, int depth) |
| 2642 { | |
| 2643 struct weak_list *w = XWEAK_LIST (obj); | |
| 2644 | |
| 665 | 2645 return HASH2 ((Hashcode) w->type, |
| 428 | 2646 internal_hash (w->list, depth + 1)); |
| 2647 } | |
| 2648 | |
| 2649 Lisp_Object | |
| 2650 make_weak_list (enum weak_list_type type) | |
| 2651 { | |
| 2652 Lisp_Object result; | |
| 2653 struct weak_list *wl = | |
| 3017 | 2654 ALLOC_LCRECORD_TYPE (struct weak_list, &lrecord_weak_list); |
| 428 | 2655 |
| 2656 wl->list = Qnil; | |
| 2657 wl->type = type; | |
| 793 | 2658 result = wrap_weak_list (wl); |
| 428 | 2659 wl->next_weak = Vall_weak_lists; |
| 2660 Vall_weak_lists = result; | |
| 2661 return result; | |
| 2662 } | |
| 2663 | |
| 1204 | 2664 static const struct memory_description weak_list_description[] = { |
| 1598 | 2665 { XD_LISP_OBJECT, offsetof (struct weak_list, list), |
| 2551 | 2666 0, { 0 }, XD_FLAG_NO_KKCC }, |
| 1598 | 2667 { XD_LO_LINK, offsetof (struct weak_list, next_weak), |
| 2551 | 2668 0, { 0 }, XD_FLAG_NO_KKCC }, |
| 428 | 2669 { XD_END } |
| 2670 }; | |
| 2671 | |
| 934 | 2672 DEFINE_LRECORD_IMPLEMENTATION ("weak-list", weak_list, |
| 2673 1, /*dumpable-flag*/ | |
| 2674 mark_weak_list, print_weak_list, | |
| 2675 0, weak_list_equal, weak_list_hash, | |
| 2676 weak_list_description, | |
| 2677 struct weak_list); | |
| 428 | 2678 /* |
| 2679 -- we do not mark the list elements (either the elements themselves | |
| 2680 or the cons cells that hold them) in the normal marking phase. | |
| 2681 -- at the end of marking, we go through all weak lists that are | |
| 2682 marked, and mark the cons cells that hold all marked | |
| 2683 objects, and possibly parts of the objects themselves. | |
| 2684 (See alloc.c, "after-mark".) | |
| 2685 -- after that, we prune away all the cons cells that are not marked. | |
| 2686 | |
| 2687 WARNING WARNING WARNING WARNING WARNING: | |
| 2688 | |
| 2689 The code in the following two functions is *unbelievably* tricky. | |
| 2690 Don't mess with it. You'll be sorry. | |
| 2691 | |
| 2692 Linked lists just majorly suck, d'ya know? | |
| 2693 */ | |
| 2694 | |
| 2695 int | |
| 2696 finish_marking_weak_lists (void) | |
| 2697 { | |
| 2698 Lisp_Object rest; | |
| 2699 int did_mark = 0; | |
| 2700 | |
| 2701 for (rest = Vall_weak_lists; | |
| 2702 !NILP (rest); | |
| 2703 rest = XWEAK_LIST (rest)->next_weak) | |
| 2704 { | |
| 2705 Lisp_Object rest2; | |
| 2706 enum weak_list_type type = XWEAK_LIST (rest)->type; | |
| 2707 | |
| 2708 if (! marked_p (rest)) | |
| 2709 /* The weak list is probably garbage. Ignore it. */ | |
| 2710 continue; | |
| 2711 | |
| 2712 for (rest2 = XWEAK_LIST (rest)->list; | |
| 2713 /* We need to be trickier since we're inside of GC; | |
| 2714 use CONSP instead of !NILP in case of user-visible | |
| 2715 imperfect lists */ | |
| 2716 CONSP (rest2); | |
| 2717 rest2 = XCDR (rest2)) | |
| 2718 { | |
| 2719 Lisp_Object elem; | |
| 2720 /* If the element is "marked" (meaning depends on the type | |
| 2721 of weak list), we need to mark the cons containing the | |
| 2722 element, and maybe the element itself (if only some part | |
| 2723 was already marked). */ | |
| 2724 int need_to_mark_cons = 0; | |
| 2725 int need_to_mark_elem = 0; | |
| 2726 | |
| 2727 /* If a cons is already marked, then its car is already marked | |
| 2728 (either because of an external pointer or because of | |
| 2729 a previous call to this function), and likewise for all | |
| 2730 the rest of the elements in the list, so we can stop now. */ | |
| 2731 if (marked_p (rest2)) | |
| 2732 break; | |
| 2733 | |
| 2734 elem = XCAR (rest2); | |
| 2735 | |
| 2736 switch (type) | |
| 2737 { | |
| 2738 case WEAK_LIST_SIMPLE: | |
| 2739 if (marked_p (elem)) | |
| 2740 need_to_mark_cons = 1; | |
| 2741 break; | |
| 2742 | |
| 2743 case WEAK_LIST_ASSOC: | |
| 2744 if (!CONSP (elem)) | |
| 2745 { | |
| 2746 /* just leave bogus elements there */ | |
| 2747 need_to_mark_cons = 1; | |
| 2748 need_to_mark_elem = 1; | |
| 2749 } | |
| 2750 else if (marked_p (XCAR (elem)) && | |
| 2751 marked_p (XCDR (elem))) | |
| 2752 { | |
| 2753 need_to_mark_cons = 1; | |
| 2754 /* We still need to mark elem, because it's | |
| 2755 probably not marked. */ | |
| 2756 need_to_mark_elem = 1; | |
| 2757 } | |
| 2758 break; | |
| 2759 | |
| 2760 case WEAK_LIST_KEY_ASSOC: | |
| 2761 if (!CONSP (elem)) | |
| 2762 { | |
| 2763 /* just leave bogus elements there */ | |
| 2764 need_to_mark_cons = 1; | |
| 2765 need_to_mark_elem = 1; | |
| 2766 } | |
| 2767 else if (marked_p (XCAR (elem))) | |
| 2768 { | |
| 2769 need_to_mark_cons = 1; | |
| 2770 /* We still need to mark elem and XCDR (elem); | |
| 2771 marking elem does both */ | |
| 2772 need_to_mark_elem = 1; | |
| 2773 } | |
| 2774 break; | |
| 2775 | |
| 2776 case WEAK_LIST_VALUE_ASSOC: | |
| 2777 if (!CONSP (elem)) | |
| 2778 { | |
| 2779 /* just leave bogus elements there */ | |
| 2780 need_to_mark_cons = 1; | |
| 2781 need_to_mark_elem = 1; | |
| 2782 } | |
| 2783 else if (marked_p (XCDR (elem))) | |
| 2784 { | |
| 2785 need_to_mark_cons = 1; | |
| 2786 /* We still need to mark elem and XCAR (elem); | |
| 2787 marking elem does both */ | |
| 2788 need_to_mark_elem = 1; | |
| 2789 } | |
| 2790 break; | |
| 2791 | |
| 442 | 2792 case WEAK_LIST_FULL_ASSOC: |
| 2793 if (!CONSP (elem)) | |
| 2794 { | |
| 2795 /* just leave bogus elements there */ | |
| 2796 need_to_mark_cons = 1; | |
| 2797 need_to_mark_elem = 1; | |
| 2798 } | |
| 2799 else if (marked_p (XCAR (elem)) || | |
| 2800 marked_p (XCDR (elem))) | |
| 2801 { | |
| 2802 need_to_mark_cons = 1; | |
| 2803 /* We still need to mark elem and XCAR (elem); | |
| 2804 marking elem does both */ | |
| 2805 need_to_mark_elem = 1; | |
| 2806 } | |
| 2807 break; | |
| 2808 | |
| 428 | 2809 default: |
| 2500 | 2810 ABORT (); |
| 428 | 2811 } |
| 2812 | |
| 2813 if (need_to_mark_elem && ! marked_p (elem)) | |
| 2814 { | |
| 1598 | 2815 #ifdef USE_KKCC |
| 2645 | 2816 kkcc_gc_stack_push_lisp_object (elem, 0, -1); |
| 1598 | 2817 #else /* NOT USE_KKCC */ |
| 428 | 2818 mark_object (elem); |
| 1598 | 2819 #endif /* NOT USE_KKCC */ |
| 428 | 2820 did_mark = 1; |
| 2821 } | |
| 2822 | |
| 2823 /* We also need to mark the cons that holds the elem or | |
| 2824 assoc-pair. We do *not* want to call (mark_object) here | |
| 2825 because that will mark the entire list; we just want to | |
| 2826 mark the cons itself. | |
| 2827 */ | |
| 2828 if (need_to_mark_cons) | |
| 2829 { | |
| 2830 Lisp_Cons *c = XCONS (rest2); | |
| 2831 if (!CONS_MARKED_P (c)) | |
| 2832 { | |
| 2833 MARK_CONS (c); | |
| 2834 did_mark = 1; | |
| 2835 } | |
| 2836 } | |
| 2837 } | |
| 2838 | |
| 2839 /* In case of imperfect list, need to mark the final cons | |
| 2840 because we're not removing it */ | |
| 2841 if (!NILP (rest2) && ! marked_p (rest2)) | |
| 2842 { | |
| 1598 | 2843 #ifdef USE_KKCC |
| 2645 | 2844 kkcc_gc_stack_push_lisp_object (rest2, 0, -1); |
| 1598 | 2845 #else /* NOT USE_KKCC */ |
| 428 | 2846 mark_object (rest2); |
| 1598 | 2847 #endif /* NOT USE_KKCC */ |
| 428 | 2848 did_mark = 1; |
| 2849 } | |
| 2850 } | |
| 2851 | |
| 2852 return did_mark; | |
| 2853 } | |
| 2854 | |
| 2855 void | |
| 2856 prune_weak_lists (void) | |
| 2857 { | |
| 2858 Lisp_Object rest, prev = Qnil; | |
| 2859 | |
| 2860 for (rest = Vall_weak_lists; | |
| 2861 !NILP (rest); | |
| 2862 rest = XWEAK_LIST (rest)->next_weak) | |
| 2863 { | |
| 2864 if (! (marked_p (rest))) | |
| 2865 { | |
| 2866 /* This weak list itself is garbage. Remove it from the list. */ | |
| 2867 if (NILP (prev)) | |
| 2868 Vall_weak_lists = XWEAK_LIST (rest)->next_weak; | |
| 2869 else | |
| 2870 XWEAK_LIST (prev)->next_weak = | |
| 2871 XWEAK_LIST (rest)->next_weak; | |
| 2872 } | |
| 2873 else | |
| 2874 { | |
| 2875 Lisp_Object rest2, prev2 = Qnil; | |
| 2876 Lisp_Object tortoise; | |
| 2877 int go_tortoise = 0; | |
| 2878 | |
| 2879 for (rest2 = XWEAK_LIST (rest)->list, tortoise = rest2; | |
| 2880 /* We need to be trickier since we're inside of GC; | |
| 2881 use CONSP instead of !NILP in case of user-visible | |
| 2882 imperfect lists */ | |
| 2883 CONSP (rest2);) | |
| 2884 { | |
| 2885 /* It suffices to check the cons for marking, | |
| 2886 regardless of the type of weak list: | |
| 2887 | |
| 2888 -- if the cons is pointed to somewhere else, | |
| 2889 then it should stay around and will be marked. | |
| 2890 -- otherwise, if it should stay around, it will | |
| 2891 have been marked in finish_marking_weak_lists(). | |
| 2892 -- otherwise, it's not marked and should disappear. | |
| 2893 */ | |
| 2894 if (! marked_p (rest2)) | |
| 2895 { | |
| 2896 /* bye bye :-( */ | |
| 2897 if (NILP (prev2)) | |
| 2898 XWEAK_LIST (rest)->list = XCDR (rest2); | |
| 2899 else | |
| 2900 XCDR (prev2) = XCDR (rest2); | |
| 2901 rest2 = XCDR (rest2); | |
| 2902 /* Ouch. Circularity checking is even trickier | |
| 2903 than I thought. When we cut out a link | |
| 2904 like this, we can't advance the turtle or | |
| 2905 it'll catch up to us. Imagine that we're | |
| 2906 standing on floor tiles and moving forward -- | |
| 2907 what we just did here is as if the floor | |
| 2908 tile under us just disappeared and all the | |
| 2909 ones ahead of us slid one tile towards us. | |
| 2910 In other words, we didn't move at all; | |
| 2911 if the tortoise was one step behind us | |
| 2912 previously, it still is, and therefore | |
| 2913 it must not move. */ | |
| 2914 } | |
| 2915 else | |
| 2916 { | |
| 2917 prev2 = rest2; | |
| 2918 | |
| 2919 /* Implementing circularity checking is trickier here | |
| 2920 than in other places because we have to guarantee | |
| 2921 that we've processed all elements before exiting | |
| 2922 due to a circularity. (In most places, an error | |
| 2923 is issued upon encountering a circularity, so it | |
| 2924 doesn't really matter if all elements are processed.) | |
| 2925 The idea is that we process along with the hare | |
| 2926 rather than the tortoise. If at any point in | |
| 2927 our forward process we encounter the tortoise, | |
| 2928 we must have already visited the spot, so we exit. | |
| 2929 (If we process with the tortoise, we can fail to | |
| 2930 process cases where a cons points to itself, or | |
| 2931 where cons A points to cons B, which points to | |
| 2932 cons A.) */ | |
| 2933 | |
| 2934 rest2 = XCDR (rest2); | |
| 2935 if (go_tortoise) | |
| 2936 tortoise = XCDR (tortoise); | |
| 2937 go_tortoise = !go_tortoise; | |
| 2938 if (EQ (rest2, tortoise)) | |
| 2939 break; | |
| 2940 } | |
| 2941 } | |
| 2942 | |
| 2943 prev = rest; | |
| 2944 } | |
| 2945 } | |
| 2946 } | |
| 2947 | |
| 2948 static enum weak_list_type | |
| 2949 decode_weak_list_type (Lisp_Object symbol) | |
| 2950 { | |
| 2951 CHECK_SYMBOL (symbol); | |
| 2952 if (EQ (symbol, Qsimple)) return WEAK_LIST_SIMPLE; | |
| 2953 if (EQ (symbol, Qassoc)) return WEAK_LIST_ASSOC; | |
| 2954 if (EQ (symbol, Qold_assoc)) return WEAK_LIST_ASSOC; /* EBOLA ALERT! */ | |
| 2955 if (EQ (symbol, Qkey_assoc)) return WEAK_LIST_KEY_ASSOC; | |
| 2956 if (EQ (symbol, Qvalue_assoc)) return WEAK_LIST_VALUE_ASSOC; | |
| 442 | 2957 if (EQ (symbol, Qfull_assoc)) return WEAK_LIST_FULL_ASSOC; |
| 428 | 2958 |
| 563 | 2959 invalid_constant ("Invalid weak list type", symbol); |
| 1204 | 2960 RETURN_NOT_REACHED (WEAK_LIST_SIMPLE); |
| 428 | 2961 } |
| 2962 | |
| 2963 static Lisp_Object | |
| 2964 encode_weak_list_type (enum weak_list_type type) | |
| 2965 { | |
| 2966 switch (type) | |
| 2967 { | |
| 2968 case WEAK_LIST_SIMPLE: return Qsimple; | |
| 2969 case WEAK_LIST_ASSOC: return Qassoc; | |
| 2970 case WEAK_LIST_KEY_ASSOC: return Qkey_assoc; | |
| 2971 case WEAK_LIST_VALUE_ASSOC: return Qvalue_assoc; | |
| 442 | 2972 case WEAK_LIST_FULL_ASSOC: return Qfull_assoc; |
| 428 | 2973 default: |
| 2500 | 2974 ABORT (); |
| 428 | 2975 } |
| 2976 | |
| 801 | 2977 return Qnil; /* not (usually) reached */ |
| 428 | 2978 } |
| 2979 | |
| 2980 DEFUN ("weak-list-p", Fweak_list_p, 1, 1, 0, /* | |
| 2981 Return non-nil if OBJECT is a weak list. | |
| 2982 */ | |
| 2983 (object)) | |
| 2984 { | |
| 2985 return WEAK_LISTP (object) ? Qt : Qnil; | |
| 2986 } | |
| 2987 | |
| 2988 DEFUN ("make-weak-list", Fmake_weak_list, 0, 1, 0, /* | |
| 2989 Return a new weak list object of type TYPE. | |
| 2990 A weak list object is an object that contains a list. This list behaves | |
| 2991 like any other list except that its elements do not count towards | |
| 456 | 2992 garbage collection -- if the only pointer to an object is inside a weak |
| 428 | 2993 list (other than pointers in similar objects such as weak hash tables), |
| 2994 the object is garbage collected and automatically removed from the list. | |
| 2995 This is used internally, for example, to manage the list holding the | |
| 2996 children of an extent -- an extent that is unused but has a parent will | |
| 2997 still be reclaimed, and will automatically be removed from its parent's | |
| 2998 list of children. | |
| 2999 | |
| 3000 Optional argument TYPE specifies the type of the weak list, and defaults | |
| 3001 to `simple'. Recognized types are | |
| 3002 | |
| 3003 `simple' Objects in the list disappear if not pointed to. | |
| 3004 `assoc' Objects in the list disappear if they are conses | |
| 3005 and either the car or the cdr of the cons is not | |
| 3006 pointed to. | |
| 3007 `key-assoc' Objects in the list disappear if they are conses | |
| 3008 and the car is not pointed to. | |
| 3009 `value-assoc' Objects in the list disappear if they are conses | |
| 3010 and the cdr is not pointed to. | |
| 442 | 3011 `full-assoc' Objects in the list disappear if they are conses |
| 3012 and neither the car nor the cdr is pointed to. | |
| 428 | 3013 */ |
| 3014 (type)) | |
| 3015 { | |
| 3016 if (NILP (type)) | |
| 3017 type = Qsimple; | |
| 3018 | |
| 3019 return make_weak_list (decode_weak_list_type (type)); | |
| 3020 } | |
| 3021 | |
| 3022 DEFUN ("weak-list-type", Fweak_list_type, 1, 1, 0, /* | |
| 3023 Return the type of the given weak-list object. | |
| 3024 */ | |
| 3025 (weak)) | |
| 3026 { | |
| 3027 CHECK_WEAK_LIST (weak); | |
| 3028 return encode_weak_list_type (XWEAK_LIST (weak)->type); | |
| 3029 } | |
| 3030 | |
| 3031 DEFUN ("weak-list-list", Fweak_list_list, 1, 1, 0, /* | |
| 3032 Return the list contained in a weak-list object. | |
| 3033 */ | |
| 3034 (weak)) | |
| 3035 { | |
| 3036 CHECK_WEAK_LIST (weak); | |
| 3037 return XWEAK_LIST_LIST (weak); | |
| 3038 } | |
| 3039 | |
| 3040 DEFUN ("set-weak-list-list", Fset_weak_list_list, 2, 2, 0, /* | |
| 3041 Change the list contained in a weak-list object. | |
| 3042 */ | |
| 3043 (weak, new_list)) | |
| 3044 { | |
| 3045 CHECK_WEAK_LIST (weak); | |
| 3046 XWEAK_LIST_LIST (weak) = new_list; | |
| 3047 return new_list; | |
| 3048 } | |
| 3049 | |
| 888 | 3050 |
| 858 | 3051 /************************************************************************/ |
| 3052 /* weak boxes */ | |
| 3053 /************************************************************************/ | |
| 3054 | |
| 3055 static Lisp_Object Vall_weak_boxes; /* Gemarke es niemals ever!!! */ | |
| 3056 | |
| 3057 void | |
| 3058 prune_weak_boxes (void) | |
| 3059 { | |
| 3060 Lisp_Object rest, prev = Qnil; | |
| 888 | 3061 int removep = 0; |
| 858 | 3062 |
| 3063 for (rest = Vall_weak_boxes; | |
| 3064 !NILP(rest); | |
| 3065 rest = XWEAK_BOX (rest)->next_weak_box) | |
| 3066 { | |
| 3067 if (! (marked_p (rest))) | |
| 888 | 3068 /* This weak box itself is garbage. */ |
| 3069 removep = 1; | |
| 3070 | |
| 3071 if (! marked_p (XWEAK_BOX (rest)->value)) | |
| 3072 { | |
| 3073 XSET_WEAK_BOX (rest, Qnil); | |
| 3074 removep = 1; | |
| 3075 } | |
| 3076 | |
| 3077 if (removep) | |
| 3078 { | |
| 3079 /* Remove weak box from list. */ | |
| 3080 if (NILP (prev)) | |
| 3081 Vall_weak_boxes = XWEAK_BOX (rest)->next_weak_box; | |
| 3082 else | |
| 3083 XWEAK_BOX (prev)->next_weak_box = XWEAK_BOX (rest)->next_weak_box; | |
| 3084 removep = 0; | |
| 3085 } | |
| 3086 else | |
| 3087 prev = rest; | |
| 858 | 3088 } |
| 3089 } | |
| 3090 | |
| 3091 static Lisp_Object | |
| 2286 | 3092 mark_weak_box (Lisp_Object UNUSED (obj)) |
| 858 | 3093 { |
| 3094 return Qnil; | |
| 3095 } | |
| 3096 | |
| 3097 static void | |
| 4846 | 3098 print_weak_box (Lisp_Object obj, Lisp_Object printcharfun, |
| 2286 | 3099 int UNUSED (escapeflag)) |
| 858 | 3100 { |
| 3101 if (print_readably) | |
| 4846 | 3102 printing_unreadable_lcrecord (obj, 0); |
| 3103 write_fmt_string (printcharfun, "#<weak-box>"); /* #### fix */ | |
| 858 | 3104 } |
| 3105 | |
| 3106 static int | |
|
4906
6ef8256a020a
implement equalp in C, fix case-folding, add equal() method for keymaps
Ben Wing <ben@xemacs.org>
parents:
4885
diff
changeset
|
3107 weak_box_equal (Lisp_Object obj1, Lisp_Object obj2, int depth, int foldcase) |
| 858 | 3108 { |
| 888 | 3109 struct weak_box *wb1 = XWEAK_BOX (obj1); |
| 3110 struct weak_box *wb2 = XWEAK_BOX (obj2); | |
| 858 | 3111 |
|
4906
6ef8256a020a
implement equalp in C, fix case-folding, add equal() method for keymaps
Ben Wing <ben@xemacs.org>
parents:
4885
diff
changeset
|
3112 return (internal_equal_0 (wb1->value, wb2->value, depth + 1, foldcase)); |
| 858 | 3113 } |
| 3114 | |
| 3115 static Hashcode | |
| 3116 weak_box_hash (Lisp_Object obj, int depth) | |
| 3117 { | |
| 888 | 3118 struct weak_box *wb = XWEAK_BOX (obj); |
| 858 | 3119 |
| 888 | 3120 return internal_hash (wb->value, depth + 1); |
| 858 | 3121 } |
| 3122 | |
| 3123 Lisp_Object | |
| 3124 make_weak_box (Lisp_Object value) | |
| 3125 { | |
| 3126 Lisp_Object result; | |
| 3127 | |
| 3128 struct weak_box *wb = | |
| 3017 | 3129 ALLOC_LCRECORD_TYPE (struct weak_box, &lrecord_weak_box); |
| 858 | 3130 |
| 3131 wb->value = value; | |
| 3132 result = wrap_weak_box (wb); | |
| 3133 wb->next_weak_box = Vall_weak_boxes; | |
| 3134 Vall_weak_boxes = result; | |
| 3135 return result; | |
| 3136 } | |
| 3137 | |
| 1204 | 3138 static const struct memory_description weak_box_description[] = { |
| 858 | 3139 { XD_LO_LINK, offsetof (struct weak_box, value) }, |
| 888 | 3140 { XD_END} |
| 858 | 3141 }; |
| 3142 | |
| 934 | 3143 DEFINE_LRECORD_IMPLEMENTATION ("weak_box", weak_box, |
| 3144 0, /*dumpable-flag*/ | |
| 3145 mark_weak_box, print_weak_box, | |
| 3146 0, weak_box_equal, weak_box_hash, | |
| 3147 weak_box_description, | |
| 3148 struct weak_box); | |
| 858 | 3149 |
| 3150 DEFUN ("make-weak-box", Fmake_weak_box, 1, 1, 0, /* | |
| 3151 Return a new weak box from value CONTENTS. | |
| 3152 The weak box is a reference to CONTENTS which may be extracted with | |
| 3153 `weak-box-ref'. However, the weak box does not contribute to the | |
| 3154 reachability of CONTENTS. When CONTENTS is garbage-collected, | |
| 3155 `weak-box-ref' will return NIL. | |
| 3156 */ | |
| 3157 (value)) | |
| 3158 { | |
| 3159 return make_weak_box(value); | |
| 3160 } | |
| 3161 | |
| 3162 DEFUN ("weak-box-ref", Fweak_box_ref, 1, 1, 0, /* | |
| 3163 Return the contents of weak box WEAK-BOX. | |
| 3164 If the contents have been GCed, return NIL. | |
| 3165 */ | |
| 888 | 3166 (wb)) |
| 858 | 3167 { |
| 888 | 3168 return XWEAK_BOX (wb)->value; |
| 858 | 3169 } |
| 3170 | |
| 3171 DEFUN ("weak-box-p", Fweak_boxp, 1, 1, 0, /* | |
| 3172 Return non-nil if OBJECT is a weak box. | |
| 3173 */ | |
| 3174 (object)) | |
| 3175 { | |
| 3176 return WEAK_BOXP (object) ? Qt : Qnil; | |
| 3177 } | |
| 3178 | |
| 888 | 3179 /************************************************************************/ |
| 3180 /* ephemerons */ | |
| 3181 /************************************************************************/ | |
| 3182 | |
| 993 | 3183 /* The concept of ephemerons is due to: |
| 3184 * Barry Hayes: Ephemerons: A New Finalization Mechanism. OOPSLA 1997: 176-183 | |
| 3185 * The original idea is due to George Bosworth of Digitalk, Inc. | |
| 3186 * | |
| 3187 * For a discussion of finalization and weakness that also reviews | |
| 3188 * ephemerons, refer to: | |
| 3189 * Simon Peyton Jones, Simon Marlow, Conal Elliot: | |
| 3190 * Stretching the storage manager | |
| 3191 * Implementation of Functional Languages, 1999 | |
| 3192 */ | |
| 3193 | |
| 888 | 3194 static Lisp_Object Vall_ephemerons; /* Gemarke es niemals ever!!! */ |
| 1590 | 3195 static Lisp_Object Vnew_all_ephemerons; |
| 888 | 3196 static Lisp_Object Vfinalize_list; |
| 3197 | |
| 1590 | 3198 void |
| 3199 init_marking_ephemerons(void) | |
| 3200 { | |
| 3201 Vnew_all_ephemerons = Qnil; | |
| 3202 } | |
| 3203 | |
| 3204 /* Move all live ephemerons with live keys over to | |
| 3205 * Vnew_all_ephemerons, marking the values and finalizers along the | |
| 3206 * way. */ | |
| 3207 | |
| 3208 int | |
| 3209 continue_marking_ephemerons(void) | |
| 3210 { | |
| 3211 Lisp_Object rest = Vall_ephemerons, next, prev = Qnil; | |
| 3212 int did_mark = 0; | |
| 3213 | |
| 3214 while (!NILP (rest)) | |
| 3215 { | |
| 3216 next = XEPHEMERON_NEXT (rest); | |
| 3217 | |
| 3218 if (marked_p (rest)) | |
| 3219 { | |
| 3220 MARK_CONS (XCONS (XEPHEMERON (rest)->cons_chain)); | |
| 3221 if (marked_p (XEPHEMERON (rest)->key)) | |
| 3222 { | |
| 1598 | 3223 #ifdef USE_KKCC |
| 3224 kkcc_gc_stack_push_lisp_object | |
| 2645 | 3225 (XCAR (XEPHEMERON (rest)->cons_chain), 0, -1); |
| 1598 | 3226 #else /* NOT USE_KKCC */ |
| 1590 | 3227 mark_object (XCAR (XEPHEMERON (rest)->cons_chain)); |
| 1598 | 3228 #endif /* NOT USE_KKCC */ |
| 1590 | 3229 did_mark = 1; |
| 3230 XSET_EPHEMERON_NEXT (rest, Vnew_all_ephemerons); | |
| 3231 Vnew_all_ephemerons = rest; | |
| 3232 if (NILP (prev)) | |
| 3233 Vall_ephemerons = next; | |
| 3234 else | |
| 3235 XSET_EPHEMERON_NEXT (prev, next); | |
| 3236 } | |
| 3237 else | |
| 3238 prev = rest; | |
| 3239 } | |
| 3240 else | |
| 3241 prev = rest; | |
| 3242 | |
| 3243 rest = next; | |
| 3244 } | |
| 3245 | |
| 3246 return did_mark; | |
| 3247 } | |
| 3248 | |
| 3249 /* At this point, everything that's in Vall_ephemerons is dead. | |
| 3250 * Well, almost: we still need to run the finalizers, so we need to | |
| 3251 * resurrect them. | |
| 3252 */ | |
| 3253 | |
| 888 | 3254 int |
| 3255 finish_marking_ephemerons(void) | |
| 3256 { | |
| 1590 | 3257 Lisp_Object rest = Vall_ephemerons, next, prev = Qnil; |
| 888 | 3258 int did_mark = 0; |
| 3259 | |
| 3260 while (! NILP (rest)) | |
| 3261 { | |
| 3262 next = XEPHEMERON_NEXT (rest); | |
| 3263 | |
| 3264 if (marked_p (rest)) | |
| 1590 | 3265 /* The ephemeron itself is live, but its key is garbage */ |
| 888 | 3266 { |
| 1590 | 3267 /* tombstone */ |
| 3268 XSET_EPHEMERON_VALUE (rest, Qnil); | |
| 3269 | |
| 3270 if (! NILP (XEPHEMERON_FINALIZER (rest))) | |
| 888 | 3271 { |
| 1590 | 3272 MARK_CONS (XCONS (XEPHEMERON (rest)->cons_chain)); |
| 1598 | 3273 #ifdef USE_KKCC |
| 3274 kkcc_gc_stack_push_lisp_object | |
| 2645 | 3275 (XCAR (XEPHEMERON (rest)->cons_chain), 0, -1); |
| 1598 | 3276 #else /* NOT USE_KKCC */ |
| 1590 | 3277 mark_object (XCAR (XEPHEMERON (rest)->cons_chain)); |
| 1598 | 3278 #endif /* NOT USE_KKCC */ |
| 1590 | 3279 |
| 3280 /* Register the finalizer */ | |
| 3281 XSET_EPHEMERON_NEXT (rest, Vfinalize_list); | |
| 3282 Vfinalize_list = XEPHEMERON (rest)->cons_chain; | |
| 3283 did_mark = 1; | |
| 888 | 3284 } |
| 3285 | |
| 3286 /* Remove it from the list. */ | |
| 3287 if (NILP (prev)) | |
| 3288 Vall_ephemerons = next; | |
| 3289 else | |
| 3290 XSET_EPHEMERON_NEXT (prev, next); | |
| 3291 } | |
| 3292 else | |
| 3293 prev = rest; | |
| 3294 | |
| 3295 rest = next; | |
| 3296 } | |
| 1590 | 3297 |
| 3298 return did_mark; | |
| 3299 } | |
| 3300 | |
| 3301 void | |
| 3302 prune_ephemerons(void) | |
| 3303 { | |
| 3304 Vall_ephemerons = Vnew_all_ephemerons; | |
| 888 | 3305 } |
| 3306 | |
| 3307 Lisp_Object | |
| 3308 zap_finalize_list(void) | |
| 3309 { | |
| 3310 Lisp_Object finalizers = Vfinalize_list; | |
| 3311 | |
| 3312 Vfinalize_list = Qnil; | |
| 3313 | |
| 3314 return finalizers; | |
| 3315 } | |
| 3316 | |
| 3317 static Lisp_Object | |
| 2286 | 3318 mark_ephemeron (Lisp_Object UNUSED (obj)) |
| 888 | 3319 { |
| 3320 return Qnil; | |
| 3321 } | |
| 3322 | |
| 3323 static void | |
| 4846 | 3324 print_ephemeron (Lisp_Object obj, Lisp_Object printcharfun, |
| 2286 | 3325 int UNUSED (escapeflag)) |
| 888 | 3326 { |
| 3327 if (print_readably) | |
| 4846 | 3328 printing_unreadable_lcrecord (obj, 0); |
| 3329 write_fmt_string (printcharfun, "#<ephemeron>"); /* #### fix */ | |
| 888 | 3330 } |
| 3331 | |
| 3332 static int | |
|
4906
6ef8256a020a
implement equalp in C, fix case-folding, add equal() method for keymaps
Ben Wing <ben@xemacs.org>
parents:
4885
diff
changeset
|
3333 ephemeron_equal (Lisp_Object obj1, Lisp_Object obj2, int depth, int foldcase) |
| 888 | 3334 { |
| 3335 return | |
|
4906
6ef8256a020a
implement equalp in C, fix case-folding, add equal() method for keymaps
Ben Wing <ben@xemacs.org>
parents:
4885
diff
changeset
|
3336 internal_equal_0 (XEPHEMERON_REF (obj1), XEPHEMERON_REF(obj2), depth + 1, |
|
6ef8256a020a
implement equalp in C, fix case-folding, add equal() method for keymaps
Ben Wing <ben@xemacs.org>
parents:
4885
diff
changeset
|
3337 foldcase); |
| 888 | 3338 } |
| 3339 | |
| 3340 static Hashcode | |
| 3341 ephemeron_hash(Lisp_Object obj, int depth) | |
| 3342 { | |
| 3343 return internal_hash (XEPHEMERON_REF (obj), depth + 1); | |
| 3344 } | |
| 3345 | |
| 3346 Lisp_Object | |
| 3347 make_ephemeron(Lisp_Object key, Lisp_Object value, Lisp_Object finalizer) | |
| 3348 { | |
| 3349 Lisp_Object result, temp = Qnil; | |
| 3350 struct gcpro gcpro1, gcpro2; | |
| 3351 | |
| 3352 struct ephemeron *eph = | |
| 3017 | 3353 ALLOC_LCRECORD_TYPE (struct ephemeron, &lrecord_ephemeron); |
| 888 | 3354 |
| 3355 eph->key = Qnil; | |
| 3356 eph->cons_chain = Qnil; | |
| 3357 eph->value = Qnil; | |
| 3358 | |
| 3359 result = wrap_ephemeron(eph); | |
| 3360 GCPRO2 (result, temp); | |
| 3361 | |
| 3362 eph->key = key; | |
| 3363 temp = Fcons(value, finalizer); | |
| 3364 eph->cons_chain = Fcons(temp, Vall_ephemerons); | |
| 3365 eph->value = value; | |
| 3366 | |
| 3367 Vall_ephemerons = result; | |
| 3368 | |
| 3369 UNGCPRO; | |
| 3370 return result; | |
| 3371 } | |
| 3372 | |
| 1598 | 3373 /* Ephemerons are special cases in the KKCC mark algorithm, so nothing |
| 3374 is marked here. */ | |
| 1204 | 3375 static const struct memory_description ephemeron_description[] = { |
| 3376 { XD_LISP_OBJECT, offsetof(struct ephemeron, key), | |
| 2551 | 3377 0, { 0 }, XD_FLAG_NO_KKCC }, |
| 1204 | 3378 { XD_LISP_OBJECT, offsetof(struct ephemeron, cons_chain), |
| 2551 | 3379 0, { 0 }, XD_FLAG_NO_KKCC }, |
| 1204 | 3380 { XD_LISP_OBJECT, offsetof(struct ephemeron, value), |
| 2551 | 3381 0, { 0 }, XD_FLAG_NO_KKCC }, |
| 888 | 3382 { XD_END } |
| 3383 }; | |
| 3384 | |
| 934 | 3385 DEFINE_LRECORD_IMPLEMENTATION ("ephemeron", ephemeron, |
| 3386 0, /*dumpable-flag*/ | |
| 3387 mark_ephemeron, print_ephemeron, | |
| 3388 0, ephemeron_equal, ephemeron_hash, | |
| 3389 ephemeron_description, | |
| 3390 struct ephemeron); | |
| 888 | 3391 |
| 3392 DEFUN ("make-ephemeron", Fmake_ephemeron, 2, 3, 0, /* | |
| 1590 | 3393 Return a new ephemeron with key KEY, value VALUE, and finalizer FINALIZER. |
| 3394 The ephemeron is a reference to VALUE which may be extracted with | |
| 3395 `ephemeron-ref'. VALUE is only reachable through the ephemeron as | |
| 888 | 3396 long as KEY is reachable; the ephemeron does not contribute to the |
| 3397 reachability of KEY. When KEY becomes unreachable while the ephemeron | |
| 1590 | 3398 itself is still reachable, VALUE is queued for finalization: FINALIZER |
| 3399 will possibly be called on VALUE some time in the future. Moreover, | |
| 888 | 3400 future calls to `ephemeron-ref' will return NIL. |
| 3401 */ | |
| 3402 (key, value, finalizer)) | |
| 3403 { | |
| 3404 return make_ephemeron(key, value, finalizer); | |
| 3405 } | |
| 3406 | |
| 3407 DEFUN ("ephemeron-ref", Fephemeron_ref, 1, 1, 0, /* | |
| 3408 Return the contents of ephemeron EPHEMERON. | |
| 3409 If the contents have been GCed, return NIL. | |
| 3410 */ | |
| 3411 (eph)) | |
| 3412 { | |
| 3413 return XEPHEMERON_REF (eph); | |
| 3414 } | |
| 3415 | |
| 3416 DEFUN ("ephemeron-p", Fephemeronp, 1, 1, 0, /* | |
| 3417 Return non-nil if OBJECT is an ephemeron. | |
| 3418 */ | |
| 3419 (object)) | |
| 3420 { | |
| 3421 return EPHEMERONP (object) ? Qt : Qnil; | |
| 3422 } | |
| 428 | 3423 |
| 3424 /************************************************************************/ | |
| 3425 /* initialization */ | |
| 3426 /************************************************************************/ | |
| 3427 | |
| 3428 static SIGTYPE | |
| 3429 arith_error (int signo) | |
| 3430 { | |
| 3431 EMACS_REESTABLISH_SIGNAL (signo, arith_error); | |
| 3432 EMACS_UNBLOCK_SIGNAL (signo); | |
| 563 | 3433 signal_error (Qarith_error, 0, Qunbound); |
| 428 | 3434 } |
| 3435 | |
| 3436 void | |
| 3437 init_data_very_early (void) | |
| 3438 { | |
| 3439 /* Don't do this if just dumping out. | |
| 3440 We don't want to call `signal' in this case | |
| 3441 so that we don't have trouble with dumping | |
| 3442 signal-delivering routines in an inconsistent state. */ | |
| 3443 if (!initialized) | |
| 3444 return; | |
| 613 | 3445 EMACS_SIGNAL (SIGFPE, arith_error); |
| 428 | 3446 #ifdef uts |
| 613 | 3447 EMACS_SIGNAL (SIGEMT, arith_error); |
| 428 | 3448 #endif /* uts */ |
| 3449 } | |
| 3450 | |
| 3451 void | |
| 3452 init_errors_once_early (void) | |
| 3453 { | |
| 442 | 3454 DEFSYMBOL (Qerror_conditions); |
| 3455 DEFSYMBOL (Qerror_message); | |
| 428 | 3456 |
| 3457 /* We declare the errors here because some other deferrors depend | |
| 3458 on some of the errors below. */ | |
| 3459 | |
| 3460 /* ERROR is used as a signaler for random errors for which nothing | |
| 3461 else is right */ | |
| 3462 | |
| 442 | 3463 DEFERROR (Qerror, "error", Qnil); |
| 3464 DEFERROR_STANDARD (Qquit, Qnil); | |
| 428 | 3465 |
| 563 | 3466 DEFERROR_STANDARD (Qinvalid_argument, Qerror); |
| 3467 | |
| 3468 DEFERROR_STANDARD (Qsyntax_error, Qinvalid_argument); | |
| 442 | 3469 DEFERROR_STANDARD (Qinvalid_read_syntax, Qsyntax_error); |
| 563 | 3470 DEFERROR_STANDARD (Qstructure_formation_error, Qsyntax_error); |
| 3471 DEFERROR_STANDARD (Qlist_formation_error, Qstructure_formation_error); | |
| 442 | 3472 DEFERROR_STANDARD (Qmalformed_list, Qlist_formation_error); |
| 3473 DEFERROR_STANDARD (Qmalformed_property_list, Qmalformed_list); | |
| 3474 DEFERROR_STANDARD (Qcircular_list, Qlist_formation_error); | |
| 3475 DEFERROR_STANDARD (Qcircular_property_list, Qcircular_list); | |
| 428 | 3476 |
| 442 | 3477 DEFERROR_STANDARD (Qwrong_type_argument, Qinvalid_argument); |
| 3478 DEFERROR_STANDARD (Qargs_out_of_range, Qinvalid_argument); | |
| 3479 DEFERROR_STANDARD (Qwrong_number_of_arguments, Qinvalid_argument); | |
| 3480 DEFERROR_STANDARD (Qinvalid_function, Qinvalid_argument); | |
| 563 | 3481 DEFERROR_STANDARD (Qinvalid_constant, Qinvalid_argument); |
| 442 | 3482 DEFERROR (Qno_catch, "No catch for tag", Qinvalid_argument); |
| 3483 | |
| 563 | 3484 DEFERROR_STANDARD (Qinvalid_state, Qerror); |
| 442 | 3485 DEFERROR (Qvoid_function, "Symbol's function definition is void", |
| 3486 Qinvalid_state); | |
| 3487 DEFERROR (Qcyclic_function_indirection, | |
| 3488 "Symbol's chain of function indirections contains a loop", | |
| 3489 Qinvalid_state); | |
| 3490 DEFERROR (Qvoid_variable, "Symbol's value as variable is void", | |
| 3491 Qinvalid_state); | |
| 3492 DEFERROR (Qcyclic_variable_indirection, | |
| 3493 "Symbol's chain of variable indirections contains a loop", | |
| 3494 Qinvalid_state); | |
| 563 | 3495 DEFERROR_STANDARD (Qstack_overflow, Qinvalid_state); |
| 3496 DEFERROR_STANDARD (Qinternal_error, Qinvalid_state); | |
| 3497 DEFERROR_STANDARD (Qout_of_memory, Qinvalid_state); | |
| 428 | 3498 |
| 563 | 3499 DEFERROR_STANDARD (Qinvalid_operation, Qerror); |
| 3500 DEFERROR_STANDARD (Qinvalid_change, Qinvalid_operation); | |
| 442 | 3501 DEFERROR (Qsetting_constant, "Attempt to set a constant symbol", |
| 3502 Qinvalid_change); | |
| 563 | 3503 DEFERROR_STANDARD (Qprinting_unreadable_object, Qinvalid_operation); |
| 3504 DEFERROR (Qunimplemented, "Feature not yet implemented", Qinvalid_operation); | |
| 442 | 3505 |
| 563 | 3506 DEFERROR_STANDARD (Qediting_error, Qinvalid_operation); |
| 442 | 3507 DEFERROR_STANDARD (Qbeginning_of_buffer, Qediting_error); |
| 3508 DEFERROR_STANDARD (Qend_of_buffer, Qediting_error); | |
| 3509 DEFERROR (Qbuffer_read_only, "Buffer is read-only", Qediting_error); | |
| 3510 | |
| 3511 DEFERROR (Qio_error, "IO Error", Qinvalid_operation); | |
| 563 | 3512 DEFERROR_STANDARD (Qfile_error, Qio_error); |
| 3513 DEFERROR (Qend_of_file, "End of file or stream", Qfile_error); | |
| 3514 DEFERROR_STANDARD (Qconversion_error, Qio_error); | |
| 580 | 3515 DEFERROR_STANDARD (Qtext_conversion_error, Qconversion_error); |
| 442 | 3516 |
| 3517 DEFERROR (Qarith_error, "Arithmetic error", Qinvalid_operation); | |
| 3518 DEFERROR (Qrange_error, "Arithmetic range error", Qarith_error); | |
| 3519 DEFERROR (Qdomain_error, "Arithmetic domain error", Qarith_error); | |
| 3520 DEFERROR (Qsingularity_error, "Arithmetic singularity error", Qdomain_error); | |
| 3521 DEFERROR (Qoverflow_error, "Arithmetic overflow error", Qdomain_error); | |
| 3522 DEFERROR (Qunderflow_error, "Arithmetic underflow error", Qdomain_error); | |
| 428 | 3523 } |
| 3524 | |
| 3525 void | |
| 3526 syms_of_data (void) | |
| 3527 { | |
| 442 | 3528 INIT_LRECORD_IMPLEMENTATION (weak_list); |
| 888 | 3529 INIT_LRECORD_IMPLEMENTATION (ephemeron); |
| 858 | 3530 INIT_LRECORD_IMPLEMENTATION (weak_box); |
| 442 | 3531 |
| 3532 DEFSYMBOL (Qquote); | |
| 3533 DEFSYMBOL (Qlambda); | |
| 3534 DEFSYMBOL (Qlistp); | |
| 3535 DEFSYMBOL (Qtrue_list_p); | |
| 3536 DEFSYMBOL (Qconsp); | |
| 3537 DEFSYMBOL (Qsubrp); | |
| 3538 DEFSYMBOL (Qsymbolp); | |
| 3539 DEFSYMBOL (Qintegerp); | |
| 3540 DEFSYMBOL (Qcharacterp); | |
| 3541 DEFSYMBOL (Qnatnump); | |
| 1983 | 3542 DEFSYMBOL (Qnonnegativep); |
| 442 | 3543 DEFSYMBOL (Qstringp); |
| 3544 DEFSYMBOL (Qarrayp); | |
| 3545 DEFSYMBOL (Qsequencep); | |
| 3546 DEFSYMBOL (Qbufferp); | |
| 3547 DEFSYMBOL (Qbitp); | |
| 3548 DEFSYMBOL_MULTIWORD_PREDICATE (Qbit_vectorp); | |
| 3549 DEFSYMBOL (Qvectorp); | |
| 3550 DEFSYMBOL (Qchar_or_string_p); | |
| 3551 DEFSYMBOL (Qmarkerp); | |
| 3552 DEFSYMBOL (Qinteger_or_marker_p); | |
| 3553 DEFSYMBOL (Qinteger_or_char_p); | |
| 3554 DEFSYMBOL (Qinteger_char_or_marker_p); | |
| 3555 DEFSYMBOL (Qnumberp); | |
| 3556 DEFSYMBOL (Qnumber_char_or_marker_p); | |
| 3557 DEFSYMBOL (Qcdr); | |
| 563 | 3558 DEFSYMBOL (Qerror_lacks_explanatory_string); |
| 442 | 3559 DEFSYMBOL_MULTIWORD_PREDICATE (Qweak_listp); |
| 3560 DEFSYMBOL (Qfloatp); | |
| 428 | 3561 |
| 3562 DEFSUBR (Fwrong_type_argument); | |
| 3563 | |
| 1983 | 3564 #ifdef HAVE_RATIO |
| 3565 DEFSUBR (Fdiv); | |
| 3566 #endif | |
| 428 | 3567 DEFSUBR (Feq); |
| 3568 DEFSUBR (Fold_eq); | |
| 3569 DEFSUBR (Fnull); | |
| 3570 Ffset (intern ("not"), intern ("null")); | |
| 3571 DEFSUBR (Flistp); | |
| 3572 DEFSUBR (Fnlistp); | |
| 3573 DEFSUBR (Ftrue_list_p); | |
| 3574 DEFSUBR (Fconsp); | |
| 3575 DEFSUBR (Fatom); | |
| 3576 DEFSUBR (Fchar_or_string_p); | |
| 3577 DEFSUBR (Fcharacterp); | |
| 3578 DEFSUBR (Fchar_int_p); | |
| 3579 DEFSUBR (Fchar_to_int); | |
| 3580 DEFSUBR (Fint_to_char); | |
| 3581 DEFSUBR (Fchar_or_char_int_p); | |
| 1983 | 3582 DEFSUBR (Ffixnump); |
| 428 | 3583 DEFSUBR (Fintegerp); |
| 3584 DEFSUBR (Finteger_or_marker_p); | |
| 3585 DEFSUBR (Finteger_or_char_p); | |
| 3586 DEFSUBR (Finteger_char_or_marker_p); | |
| 3587 DEFSUBR (Fnumberp); | |
| 3588 DEFSUBR (Fnumber_or_marker_p); | |
| 3589 DEFSUBR (Fnumber_char_or_marker_p); | |
| 3590 DEFSUBR (Ffloatp); | |
| 3591 DEFSUBR (Fnatnump); | |
| 1983 | 3592 DEFSUBR (Fnonnegativep); |
| 428 | 3593 DEFSUBR (Fsymbolp); |
| 3594 DEFSUBR (Fkeywordp); | |
| 3595 DEFSUBR (Fstringp); | |
| 3596 DEFSUBR (Fvectorp); | |
| 3597 DEFSUBR (Fbitp); | |
| 3598 DEFSUBR (Fbit_vector_p); | |
| 3599 DEFSUBR (Farrayp); | |
| 3600 DEFSUBR (Fsequencep); | |
| 3601 DEFSUBR (Fmarkerp); | |
| 3602 DEFSUBR (Fsubrp); | |
| 3603 DEFSUBR (Fsubr_min_args); | |
| 3604 DEFSUBR (Fsubr_max_args); | |
| 3605 DEFSUBR (Fsubr_interactive); | |
| 3606 DEFSUBR (Ftype_of); | |
| 3607 DEFSUBR (Fcar); | |
| 3608 DEFSUBR (Fcdr); | |
| 3609 DEFSUBR (Fcar_safe); | |
| 3610 DEFSUBR (Fcdr_safe); | |
| 3611 DEFSUBR (Fsetcar); | |
| 3612 DEFSUBR (Fsetcdr); | |
| 3613 DEFSUBR (Findirect_function); | |
| 3614 DEFSUBR (Faref); | |
| 3615 DEFSUBR (Faset); | |
| 3616 | |
| 3617 DEFSUBR (Fnumber_to_string); | |
| 3618 DEFSUBR (Fstring_to_number); | |
| 3619 DEFSUBR (Feqlsign); | |
| 3620 DEFSUBR (Flss); | |
| 3621 DEFSUBR (Fgtr); | |
| 3622 DEFSUBR (Fleq); | |
| 3623 DEFSUBR (Fgeq); | |
| 3624 DEFSUBR (Fneq); | |
| 3625 DEFSUBR (Fzerop); | |
| 3626 DEFSUBR (Fplus); | |
| 3627 DEFSUBR (Fminus); | |
| 3628 DEFSUBR (Ftimes); | |
| 3629 DEFSUBR (Fquo); | |
| 3630 DEFSUBR (Frem); | |
| 3631 DEFSUBR (Fmod); | |
| 3632 DEFSUBR (Fmax); | |
| 3633 DEFSUBR (Fmin); | |
| 3634 DEFSUBR (Flogand); | |
| 3635 DEFSUBR (Flogior); | |
| 3636 DEFSUBR (Flogxor); | |
| 3637 DEFSUBR (Flsh); | |
| 3638 DEFSUBR (Fash); | |
| 3639 DEFSUBR (Fadd1); | |
| 3640 DEFSUBR (Fsub1); | |
| 3641 DEFSUBR (Flognot); | |
| 3642 | |
| 3643 DEFSUBR (Fweak_list_p); | |
| 3644 DEFSUBR (Fmake_weak_list); | |
| 3645 DEFSUBR (Fweak_list_type); | |
| 3646 DEFSUBR (Fweak_list_list); | |
| 3647 DEFSUBR (Fset_weak_list_list); | |
| 858 | 3648 |
| 888 | 3649 DEFSUBR (Fmake_ephemeron); |
| 3650 DEFSUBR (Fephemeron_ref); | |
| 3651 DEFSUBR (Fephemeronp); | |
| 858 | 3652 DEFSUBR (Fmake_weak_box); |
| 3653 DEFSUBR (Fweak_box_ref); | |
| 3654 DEFSUBR (Fweak_boxp); | |
| 428 | 3655 } |
| 3656 | |
| 3657 void | |
| 3658 vars_of_data (void) | |
| 3659 { | |
| 3660 /* This must not be staticpro'd */ | |
| 3661 Vall_weak_lists = Qnil; | |
| 452 | 3662 dump_add_weak_object_chain (&Vall_weak_lists); |
| 428 | 3663 |
| 888 | 3664 Vall_ephemerons = Qnil; |
| 3665 dump_add_weak_object_chain (&Vall_ephemerons); | |
| 3666 | |
| 3667 Vfinalize_list = Qnil; | |
| 3668 staticpro (&Vfinalize_list); | |
| 3669 | |
| 858 | 3670 Vall_weak_boxes = Qnil; |
| 3671 dump_add_weak_object_chain (&Vall_weak_boxes); | |
| 3672 | |
|
4885
6772ce4d982b
Fix hash tables, #'member*, #'assoc*, #'eql compiler macros if bignums
Aidan Kehoe <kehoea@parhasard.net>
parents:
4846
diff
changeset
|
3673 DEFVAR_CONST_INT ("most-negative-fixnum", &Vmost_negative_fixnum /* |
|
6772ce4d982b
Fix hash tables, #'member*, #'assoc*, #'eql compiler macros if bignums
Aidan Kehoe <kehoea@parhasard.net>
parents:
4846
diff
changeset
|
3674 The fixnum closest in value to negative infinity. |
|
6772ce4d982b
Fix hash tables, #'member*, #'assoc*, #'eql compiler macros if bignums
Aidan Kehoe <kehoea@parhasard.net>
parents:
4846
diff
changeset
|
3675 */); |
|
6772ce4d982b
Fix hash tables, #'member*, #'assoc*, #'eql compiler macros if bignums
Aidan Kehoe <kehoea@parhasard.net>
parents:
4846
diff
changeset
|
3676 Vmost_negative_fixnum = EMACS_INT_MIN; |
|
6772ce4d982b
Fix hash tables, #'member*, #'assoc*, #'eql compiler macros if bignums
Aidan Kehoe <kehoea@parhasard.net>
parents:
4846
diff
changeset
|
3677 |
|
6772ce4d982b
Fix hash tables, #'member*, #'assoc*, #'eql compiler macros if bignums
Aidan Kehoe <kehoea@parhasard.net>
parents:
4846
diff
changeset
|
3678 DEFVAR_CONST_INT ("most-positive-fixnum", &Vmost_positive_fixnum /* |
|
6772ce4d982b
Fix hash tables, #'member*, #'assoc*, #'eql compiler macros if bignums
Aidan Kehoe <kehoea@parhasard.net>
parents:
4846
diff
changeset
|
3679 The fixnum closest in value to positive infinity. |
|
6772ce4d982b
Fix hash tables, #'member*, #'assoc*, #'eql compiler macros if bignums
Aidan Kehoe <kehoea@parhasard.net>
parents:
4846
diff
changeset
|
3680 */); |
|
6772ce4d982b
Fix hash tables, #'member*, #'assoc*, #'eql compiler macros if bignums
Aidan Kehoe <kehoea@parhasard.net>
parents:
4846
diff
changeset
|
3681 Vmost_positive_fixnum = EMACS_INT_MAX; |
|
6772ce4d982b
Fix hash tables, #'member*, #'assoc*, #'eql compiler macros if bignums
Aidan Kehoe <kehoea@parhasard.net>
parents:
4846
diff
changeset
|
3682 |
| 428 | 3683 #ifdef DEBUG_XEMACS |
| 3684 DEFVAR_BOOL ("debug-issue-ebola-notices", &debug_issue_ebola_notices /* | |
| 3685 If non-zero, note when your code may be suffering from char-int confoundance. | |
| 3686 That is to say, if XEmacs encounters a usage of `eq', `memq', `equal', | |
| 3687 etc. where an int and a char with the same value are being compared, | |
| 3688 it will issue a notice on stderr to this effect, along with a backtrace. | |
| 3689 In such situations, the result would be different in XEmacs 19 versus | |
| 3690 XEmacs 20, and you probably don't want this. | |
| 3691 | |
| 3692 Note that in order to see these notices, you have to byte compile your | |
| 3693 code under XEmacs 20 -- any code byte-compiled under XEmacs 19 will | |
| 3694 have its chars and ints all confounded in the byte code, making it | |
| 3695 impossible to accurately determine Ebola infection. | |
| 3696 */ ); | |
| 3697 | |
| 3698 debug_issue_ebola_notices = 0; | |
| 3699 | |
| 3700 DEFVAR_INT ("debug-ebola-backtrace-length", | |
| 3701 &debug_ebola_backtrace_length /* | |
| 3702 Length (in stack frames) of short backtrace printed out in Ebola notices. | |
| 3703 See `debug-issue-ebola-notices'. | |
| 3704 */ ); | |
| 3705 debug_ebola_backtrace_length = 32; | |
| 3706 | |
| 3707 #endif /* DEBUG_XEMACS */ | |
| 3708 } |