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annotate src/data.c @ 4931:8a08cf0b7583
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| author | Ben Wing <ben@xemacs.org> |
|---|---|
| date | Thu, 21 Jan 2010 00:46:37 -0600 |
| parents | a98ca4640147 |
| children | 6772ce4d982b 19a72041c5ed |
| 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 | |
| 68 #ifdef DEBUG_XEMACS | |
| 69 | |
| 70 int debug_issue_ebola_notices; | |
| 71 | |
| 458 | 72 Fixnum debug_ebola_backtrace_length; |
| 428 | 73 |
| 74 int | |
| 75 eq_with_ebola_notice (Lisp_Object obj1, Lisp_Object obj2) | |
| 76 { | |
| 77 if (debug_issue_ebola_notices | |
| 78 && ((CHARP (obj1) && INTP (obj2)) || (CHARP (obj2) && INTP (obj1)))) | |
| 79 { | |
| 80 /* #### It would be really nice if this were a proper warning | |
| 1551 | 81 instead of brain-dead print to Qexternal_debugging_output. */ |
| 826 | 82 write_c_string |
| 83 (Qexternal_debugging_output, | |
| 84 "Comparison between integer and character is constant nil ("); | |
| 428 | 85 Fprinc (obj1, Qexternal_debugging_output); |
| 826 | 86 write_c_string (Qexternal_debugging_output, " and "); |
| 428 | 87 Fprinc (obj2, Qexternal_debugging_output); |
| 826 | 88 write_c_string (Qexternal_debugging_output, ")\n"); |
| 428 | 89 debug_short_backtrace (debug_ebola_backtrace_length); |
| 90 } | |
| 91 return EQ (obj1, obj2); | |
| 92 } | |
| 93 | |
| 94 #endif /* DEBUG_XEMACS */ | |
| 95 | |
| 96 | |
| 97 | |
| 98 Lisp_Object | |
| 99 wrong_type_argument (Lisp_Object predicate, Lisp_Object value) | |
| 100 { | |
| 101 /* This function can GC */ | |
| 102 REGISTER Lisp_Object tem; | |
| 103 do | |
| 104 { | |
| 105 value = Fsignal (Qwrong_type_argument, list2 (predicate, value)); | |
| 106 tem = call1 (predicate, value); | |
| 107 } | |
| 108 while (NILP (tem)); | |
| 109 return value; | |
| 110 } | |
| 111 | |
| 112 DOESNT_RETURN | |
| 113 dead_wrong_type_argument (Lisp_Object predicate, Lisp_Object value) | |
| 114 { | |
| 563 | 115 signal_error_1 (Qwrong_type_argument, list2 (predicate, value)); |
| 428 | 116 } |
| 117 | |
| 118 DEFUN ("wrong-type-argument", Fwrong_type_argument, 2, 2, 0, /* | |
| 119 Signal an error until the correct type value is given by the user. | |
| 120 This function loops, signalling a continuable `wrong-type-argument' error | |
| 121 with PREDICATE and VALUE as the data associated with the error and then | |
| 122 calling PREDICATE on the returned value, until the value gotten satisfies | |
| 123 PREDICATE. At that point, the gotten value is returned. | |
| 124 */ | |
| 125 (predicate, value)) | |
| 126 { | |
| 127 return wrong_type_argument (predicate, value); | |
| 128 } | |
| 129 | |
| 130 DOESNT_RETURN | |
| 131 c_write_error (Lisp_Object obj) | |
| 132 { | |
| 563 | 133 signal_error (Qsetting_constant, |
| 134 "Attempt to modify read-only object (c)", obj); | |
| 428 | 135 } |
| 136 | |
| 137 DOESNT_RETURN | |
| 138 lisp_write_error (Lisp_Object obj) | |
| 139 { | |
| 563 | 140 signal_error (Qsetting_constant, |
| 141 "Attempt to modify read-only object (lisp)", obj); | |
| 428 | 142 } |
| 143 | |
| 144 DOESNT_RETURN | |
| 145 args_out_of_range (Lisp_Object a1, Lisp_Object a2) | |
| 146 { | |
| 563 | 147 signal_error_1 (Qargs_out_of_range, list2 (a1, a2)); |
| 428 | 148 } |
| 149 | |
| 150 DOESNT_RETURN | |
| 151 args_out_of_range_3 (Lisp_Object a1, Lisp_Object a2, Lisp_Object a3) | |
| 152 { | |
| 563 | 153 signal_error_1 (Qargs_out_of_range, list3 (a1, a2, a3)); |
| 428 | 154 } |
| 155 | |
| 156 void | |
| 157 check_int_range (EMACS_INT val, EMACS_INT min, EMACS_INT max) | |
| 158 { | |
| 159 if (val < min || val > max) | |
| 160 args_out_of_range_3 (make_int (val), make_int (min), make_int (max)); | |
| 161 } | |
| 162 | |
| 163 | |
| 164 /* Data type predicates */ | |
| 165 | |
| 166 DEFUN ("eq", Feq, 2, 2, 0, /* | |
| 167 Return t if the two args are the same Lisp object. | |
| 168 */ | |
| 444 | 169 (object1, object2)) |
| 428 | 170 { |
| 444 | 171 return EQ_WITH_EBOLA_NOTICE (object1, object2) ? Qt : Qnil; |
| 428 | 172 } |
| 173 | |
| 174 DEFUN ("old-eq", Fold_eq, 2, 2, 0, /* | |
| 175 Return t if the two args are (in most cases) the same Lisp object. | |
| 176 | |
| 177 Special kludge: A character is considered `old-eq' to its equivalent integer | |
| 178 even though they are not the same object and are in fact of different | |
| 179 types. This is ABSOLUTELY AND UTTERLY HORRENDOUS but is necessary to | |
| 180 preserve byte-code compatibility with v19. This kludge is known as the | |
| 181 \"char-int confoundance disease\" and appears in a number of other | |
| 182 functions with `old-foo' equivalents. | |
| 183 | |
| 184 Do not use this function! | |
| 185 */ | |
| 444 | 186 (object1, object2)) |
| 428 | 187 { |
| 188 /* #### blasphemy */ | |
| 444 | 189 return HACKEQ_UNSAFE (object1, object2) ? Qt : Qnil; |
| 428 | 190 } |
| 191 | |
| 192 DEFUN ("null", Fnull, 1, 1, 0, /* | |
| 193 Return t if OBJECT is nil. | |
| 194 */ | |
| 195 (object)) | |
| 196 { | |
| 197 return NILP (object) ? Qt : Qnil; | |
| 198 } | |
| 199 | |
| 200 DEFUN ("consp", Fconsp, 1, 1, 0, /* | |
| 201 Return t if OBJECT is a cons cell. `nil' is not a cons cell. | |
| 3343 | 202 |
| 3355 | 203 See the documentation for `cons' or the Lisp manual for more details on what |
| 204 a cons cell is. | |
| 428 | 205 */ |
| 206 (object)) | |
| 207 { | |
| 208 return CONSP (object) ? Qt : Qnil; | |
| 209 } | |
| 210 | |
| 211 DEFUN ("atom", Fatom, 1, 1, 0, /* | |
| 212 Return t if OBJECT is not a cons cell. `nil' is not a cons cell. | |
| 3355 | 213 |
| 214 See the documentation for `cons' or the Lisp manual for more details on what | |
| 215 a cons cell is. | |
| 428 | 216 */ |
| 217 (object)) | |
| 218 { | |
| 219 return CONSP (object) ? Qnil : Qt; | |
| 220 } | |
| 221 | |
| 222 DEFUN ("listp", Flistp, 1, 1, 0, /* | |
| 223 Return t if OBJECT is a list. `nil' is a list. | |
| 3343 | 224 |
| 3355 | 225 A list is either the Lisp object nil (a symbol), interpreted as the empty |
| 226 list in this context, or a cons cell whose CDR refers to either nil or a | |
| 227 cons cell. A "proper list" contains no cycles. | |
| 428 | 228 */ |
| 229 (object)) | |
| 230 { | |
| 231 return LISTP (object) ? Qt : Qnil; | |
| 232 } | |
| 233 | |
| 234 DEFUN ("nlistp", Fnlistp, 1, 1, 0, /* | |
| 235 Return t if OBJECT is not a list. `nil' is a list. | |
| 236 */ | |
| 237 (object)) | |
| 238 { | |
| 239 return LISTP (object) ? Qnil : Qt; | |
| 240 } | |
| 241 | |
| 242 DEFUN ("true-list-p", Ftrue_list_p, 1, 1, 0, /* | |
| 1551 | 243 Return t if OBJECT is an acyclic, nil-terminated (ie, not dotted), list. |
| 428 | 244 */ |
| 245 (object)) | |
| 246 { | |
| 247 return TRUE_LIST_P (object) ? Qt : Qnil; | |
| 248 } | |
| 249 | |
| 250 DEFUN ("symbolp", Fsymbolp, 1, 1, 0, /* | |
| 251 Return t if OBJECT is a symbol. | |
| 3343 | 252 |
| 253 A symbol is a Lisp object with a name. It can optionally have any and all of | |
| 254 a value, a property list and an associated function. | |
| 428 | 255 */ |
| 256 (object)) | |
| 257 { | |
| 258 return SYMBOLP (object) ? Qt : Qnil; | |
| 259 } | |
| 260 | |
| 261 DEFUN ("keywordp", Fkeywordp, 1, 1, 0, /* | |
| 262 Return t if OBJECT is a keyword. | |
| 263 */ | |
| 264 (object)) | |
| 265 { | |
| 266 return KEYWORDP (object) ? Qt : Qnil; | |
| 267 } | |
| 268 | |
| 269 DEFUN ("vectorp", Fvectorp, 1, 1, 0, /* | |
| 270 Return t if OBJECT is a vector. | |
| 271 */ | |
| 272 (object)) | |
| 273 { | |
| 274 return VECTORP (object) ? Qt : Qnil; | |
| 275 } | |
| 276 | |
| 277 DEFUN ("bit-vector-p", Fbit_vector_p, 1, 1, 0, /* | |
| 278 Return t if OBJECT is a bit vector. | |
| 279 */ | |
| 280 (object)) | |
| 281 { | |
| 282 return BIT_VECTORP (object) ? Qt : Qnil; | |
| 283 } | |
| 284 | |
| 285 DEFUN ("stringp", Fstringp, 1, 1, 0, /* | |
| 286 Return t if OBJECT is a string. | |
| 287 */ | |
| 288 (object)) | |
| 289 { | |
| 290 return STRINGP (object) ? Qt : Qnil; | |
| 291 } | |
| 292 | |
| 293 DEFUN ("arrayp", Farrayp, 1, 1, 0, /* | |
| 294 Return t if OBJECT is an array (string, vector, or bit vector). | |
| 295 */ | |
| 296 (object)) | |
| 297 { | |
| 298 return (VECTORP (object) || | |
| 299 STRINGP (object) || | |
| 300 BIT_VECTORP (object)) | |
| 301 ? Qt : Qnil; | |
| 302 } | |
| 303 | |
| 304 DEFUN ("sequencep", Fsequencep, 1, 1, 0, /* | |
| 305 Return t if OBJECT is a sequence (list or array). | |
| 306 */ | |
| 307 (object)) | |
| 308 { | |
| 309 return (LISTP (object) || | |
| 310 VECTORP (object) || | |
| 311 STRINGP (object) || | |
| 312 BIT_VECTORP (object)) | |
| 313 ? Qt : Qnil; | |
| 314 } | |
| 315 | |
| 316 DEFUN ("markerp", Fmarkerp, 1, 1, 0, /* | |
| 317 Return t if OBJECT is a marker (editor pointer). | |
| 318 */ | |
| 319 (object)) | |
| 320 { | |
| 321 return MARKERP (object) ? Qt : Qnil; | |
| 322 } | |
| 323 | |
| 324 DEFUN ("subrp", Fsubrp, 1, 1, 0, /* | |
| 325 Return t if OBJECT is a built-in function. | |
| 326 */ | |
| 327 (object)) | |
| 328 { | |
| 329 return SUBRP (object) ? Qt : Qnil; | |
| 330 } | |
| 331 | |
| 332 DEFUN ("subr-min-args", Fsubr_min_args, 1, 1, 0, /* | |
| 333 Return minimum number of args built-in function SUBR may be called with. | |
| 334 */ | |
| 335 (subr)) | |
| 336 { | |
| 337 CHECK_SUBR (subr); | |
| 338 return make_int (XSUBR (subr)->min_args); | |
| 339 } | |
| 340 | |
| 341 DEFUN ("subr-max-args", Fsubr_max_args, 1, 1, 0, /* | |
| 342 Return maximum number of args built-in function SUBR may be called with, | |
| 343 or nil if it takes an arbitrary number of arguments or is a special form. | |
| 344 */ | |
| 345 (subr)) | |
| 346 { | |
| 347 int nargs; | |
| 348 CHECK_SUBR (subr); | |
| 349 nargs = XSUBR (subr)->max_args; | |
| 350 if (nargs == MANY || nargs == UNEVALLED) | |
| 351 return Qnil; | |
| 352 else | |
| 353 return make_int (nargs); | |
| 354 } | |
| 355 | |
| 356 DEFUN ("subr-interactive", Fsubr_interactive, 1, 1, 0, /* | |
| 444 | 357 Return the interactive spec of the subr object SUBR, or nil. |
| 428 | 358 If non-nil, the return value will be a list whose first element is |
| 359 `interactive' and whose second element is the interactive spec. | |
| 360 */ | |
| 361 (subr)) | |
| 362 { | |
| 867 | 363 const CIbyte *prompt; |
| 428 | 364 CHECK_SUBR (subr); |
| 365 prompt = XSUBR (subr)->prompt; | |
| 771 | 366 return prompt ? list2 (Qinteractive, build_msg_string (prompt)) : Qnil; |
| 428 | 367 } |
| 368 | |
| 369 | |
| 370 DEFUN ("characterp", Fcharacterp, 1, 1, 0, /* | |
| 371 Return t if OBJECT is a character. | |
| 372 Unlike in XEmacs v19 and FSF Emacs, a character is its own primitive type. | |
| 373 Any character can be converted into an equivalent integer using | |
| 374 `char-int'. To convert the other way, use `int-char'; however, | |
| 375 only some integers can be converted into characters. Such an integer | |
| 376 is called a `char-int'; see `char-int-p'. | |
| 377 | |
| 378 Some functions that work on integers (e.g. the comparison functions | |
| 379 <, <=, =, /=, etc. and the arithmetic functions +, -, *, etc.) | |
| 380 accept characters and implicitly convert them into integers. In | |
| 381 general, functions that work on characters also accept char-ints and | |
| 382 implicitly convert them into characters. WARNING: Neither of these | |
| 383 behaviors is very desirable, and they are maintained for backward | |
| 384 compatibility with old E-Lisp programs that confounded characters and | |
| 385 integers willy-nilly. These behaviors may change in the future; therefore, | |
| 386 do not rely on them. Instead, use the character-specific functions such | |
| 387 as `char='. | |
| 388 */ | |
| 389 (object)) | |
| 390 { | |
| 391 return CHARP (object) ? Qt : Qnil; | |
| 392 } | |
| 393 | |
| 394 DEFUN ("char-to-int", Fchar_to_int, 1, 1, 0, /* | |
| 444 | 395 Convert CHARACTER into an equivalent integer. |
| 428 | 396 The resulting integer will always be non-negative. The integers in |
| 397 the range 0 - 255 map to characters as follows: | |
| 398 | |
| 399 0 - 31 Control set 0 | |
| 400 32 - 127 ASCII | |
| 401 128 - 159 Control set 1 | |
| 402 160 - 255 Right half of ISO-8859-1 | |
| 403 | |
| 404 If support for Mule does not exist, these are the only valid character | |
| 405 values. When Mule support exists, the values assigned to other characters | |
| 406 may vary depending on the particular version of XEmacs, the order in which | |
| 407 character sets were loaded, etc., and you should not depend on them. | |
| 408 */ | |
| 444 | 409 (character)) |
| 428 | 410 { |
| 444 | 411 CHECK_CHAR (character); |
| 412 return make_int (XCHAR (character)); | |
| 428 | 413 } |
| 414 | |
| 415 DEFUN ("int-to-char", Fint_to_char, 1, 1, 0, /* | |
| 444 | 416 Convert integer INTEGER into the equivalent character. |
| 428 | 417 Not all integers correspond to valid characters; use `char-int-p' to |
| 418 determine whether this is the case. If the integer cannot be converted, | |
| 419 nil is returned. | |
| 420 */ | |
| 421 (integer)) | |
| 422 { | |
| 423 CHECK_INT (integer); | |
| 424 if (CHAR_INTP (integer)) | |
| 425 return make_char (XINT (integer)); | |
| 426 else | |
| 427 return Qnil; | |
| 428 } | |
| 429 | |
| 430 DEFUN ("char-int-p", Fchar_int_p, 1, 1, 0, /* | |
| 431 Return t if OBJECT is an integer that can be converted into a character. | |
| 432 See `char-int'. | |
| 433 */ | |
| 434 (object)) | |
| 435 { | |
| 436 return CHAR_INTP (object) ? Qt : Qnil; | |
| 437 } | |
| 438 | |
| 439 DEFUN ("char-or-char-int-p", Fchar_or_char_int_p, 1, 1, 0, /* | |
| 440 Return t if OBJECT is a character or an integer that can be converted into one. | |
| 441 */ | |
| 442 (object)) | |
| 443 { | |
| 444 return CHAR_OR_CHAR_INTP (object) ? Qt : Qnil; | |
| 445 } | |
| 446 | |
| 447 DEFUN ("char-or-string-p", Fchar_or_string_p, 1, 1, 0, /* | |
| 448 Return t if OBJECT is a character (or a char-int) or a string. | |
| 449 It is semi-hateful that we allow a char-int here, as it goes against | |
| 450 the name of this function, but it makes the most sense considering the | |
| 451 other steps we take to maintain compatibility with the old character/integer | |
| 452 confoundedness in older versions of E-Lisp. | |
| 453 */ | |
| 454 (object)) | |
| 455 { | |
| 456 return CHAR_OR_CHAR_INTP (object) || STRINGP (object) ? Qt : Qnil; | |
| 457 } | |
| 458 | |
| 1983 | 459 #ifdef HAVE_BIGNUM |
| 460 /* In this case, integerp is defined in number.c. */ | |
| 461 DEFUN ("fixnump", Ffixnump, 1, 1, 0, /* | |
| 462 Return t if OBJECT is a fixnum. | |
| 463 */ | |
| 464 (object)) | |
| 465 { | |
| 466 return INTP (object) ? Qt : Qnil; | |
| 467 } | |
| 468 #else | |
| 428 | 469 DEFUN ("integerp", Fintegerp, 1, 1, 0, /* |
| 470 Return t if OBJECT is an integer. | |
| 471 */ | |
| 472 (object)) | |
| 473 { | |
| 474 return INTP (object) ? Qt : Qnil; | |
| 475 } | |
| 1983 | 476 #endif |
| 428 | 477 |
| 478 DEFUN ("integer-or-marker-p", Finteger_or_marker_p, 1, 1, 0, /* | |
| 479 Return t if OBJECT is an integer or a marker (editor pointer). | |
| 480 */ | |
| 481 (object)) | |
| 482 { | |
| 483 return INTP (object) || MARKERP (object) ? Qt : Qnil; | |
| 484 } | |
| 485 | |
| 486 DEFUN ("integer-or-char-p", Finteger_or_char_p, 1, 1, 0, /* | |
| 487 Return t if OBJECT is an integer or a character. | |
| 488 */ | |
| 489 (object)) | |
| 490 { | |
| 491 return INTP (object) || CHARP (object) ? Qt : Qnil; | |
| 492 } | |
| 493 | |
| 494 DEFUN ("integer-char-or-marker-p", Finteger_char_or_marker_p, 1, 1, 0, /* | |
| 495 Return t if OBJECT is an integer, character or a marker (editor pointer). | |
| 496 */ | |
| 497 (object)) | |
| 498 { | |
| 499 return INTP (object) || CHARP (object) || MARKERP (object) ? Qt : Qnil; | |
| 500 } | |
| 501 | |
| 502 DEFUN ("natnump", Fnatnump, 1, 1, 0, /* | |
| 503 Return t if OBJECT is a nonnegative integer. | |
| 504 */ | |
| 505 (object)) | |
| 506 { | |
| 1983 | 507 return NATNUMP (object) |
| 508 #ifdef HAVE_BIGNUM | |
| 509 || (BIGNUMP (object) && bignum_sign (XBIGNUM_DATA (object)) >= 0) | |
| 510 #endif | |
| 511 ? Qt : Qnil; | |
| 512 } | |
| 513 | |
| 514 DEFUN ("nonnegativep", Fnonnegativep, 1, 1, 0, /* | |
| 515 Return t if OBJECT is a nonnegative number. | |
| 516 */ | |
| 517 (object)) | |
| 518 { | |
| 519 return NATNUMP (object) | |
| 520 #ifdef HAVE_BIGNUM | |
| 521 || (BIGNUMP (object) && bignum_sign (XBIGNUM_DATA (object)) >= 0) | |
| 522 #endif | |
| 523 #ifdef HAVE_RATIO | |
| 524 || (RATIOP (object) && ratio_sign (XRATIO_DATA (object)) >= 0) | |
| 525 #endif | |
| 526 #ifdef HAVE_BIGFLOAT | |
| 527 || (BIGFLOATP (object) && bigfloat_sign (XBIGFLOAT_DATA (object)) >= 0) | |
| 528 #endif | |
| 529 ? Qt : Qnil; | |
| 428 | 530 } |
| 531 | |
| 532 DEFUN ("bitp", Fbitp, 1, 1, 0, /* | |
| 533 Return t if OBJECT is a bit (0 or 1). | |
| 534 */ | |
| 535 (object)) | |
| 536 { | |
| 537 return BITP (object) ? Qt : Qnil; | |
| 538 } | |
| 539 | |
| 540 DEFUN ("numberp", Fnumberp, 1, 1, 0, /* | |
| 541 Return t if OBJECT is a number (floating point or integer). | |
| 542 */ | |
| 543 (object)) | |
| 544 { | |
| 1983 | 545 #ifdef WITH_NUMBER_TYPES |
| 546 return NUMBERP (object) ? Qt : Qnil; | |
| 547 #else | |
| 428 | 548 return INT_OR_FLOATP (object) ? Qt : Qnil; |
| 1983 | 549 #endif |
| 428 | 550 } |
| 551 | |
| 552 DEFUN ("number-or-marker-p", Fnumber_or_marker_p, 1, 1, 0, /* | |
| 553 Return t if OBJECT is a number or a marker. | |
| 554 */ | |
| 555 (object)) | |
| 556 { | |
| 557 return INT_OR_FLOATP (object) || MARKERP (object) ? Qt : Qnil; | |
| 558 } | |
| 559 | |
| 560 DEFUN ("number-char-or-marker-p", Fnumber_char_or_marker_p, 1, 1, 0, /* | |
| 561 Return t if OBJECT is a number, character or a marker. | |
| 562 */ | |
| 563 (object)) | |
| 564 { | |
| 565 return (INT_OR_FLOATP (object) || | |
| 566 CHARP (object) || | |
| 567 MARKERP (object)) | |
| 568 ? Qt : Qnil; | |
| 569 } | |
| 570 | |
| 571 DEFUN ("floatp", Ffloatp, 1, 1, 0, /* | |
| 572 Return t if OBJECT is a floating point number. | |
| 573 */ | |
| 574 (object)) | |
| 575 { | |
| 576 return FLOATP (object) ? Qt : Qnil; | |
| 577 } | |
| 578 | |
| 579 DEFUN ("type-of", Ftype_of, 1, 1, 0, /* | |
| 580 Return a symbol representing the type of OBJECT. | |
| 581 */ | |
| 582 (object)) | |
| 583 { | |
| 584 switch (XTYPE (object)) | |
| 585 { | |
| 586 case Lisp_Type_Record: | |
| 587 return intern (XRECORD_LHEADER_IMPLEMENTATION (object)->name); | |
| 588 | |
| 589 case Lisp_Type_Char: return Qcharacter; | |
| 590 | |
| 591 default: return Qinteger; | |
| 592 } | |
| 593 } | |
| 594 | |
| 595 | |
| 596 /* Extract and set components of lists */ | |
| 597 | |
| 598 DEFUN ("car", Fcar, 1, 1, 0, /* | |
| 3343 | 599 Return the car of CONS. If CONS is nil, return nil. |
| 600 The car of a list or a dotted pair is its first element. | |
| 601 | |
| 602 Error if CONS is not nil and not a cons cell. See also `car-safe'. | |
| 428 | 603 */ |
| 3343 | 604 (cons)) |
| 428 | 605 { |
| 606 while (1) | |
| 607 { | |
| 3343 | 608 if (CONSP (cons)) |
| 609 return XCAR (cons); | |
| 610 else if (NILP (cons)) | |
| 428 | 611 return Qnil; |
| 612 else | |
| 3343 | 613 cons = wrong_type_argument (Qlistp, cons); |
| 428 | 614 } |
| 615 } | |
| 616 | |
| 617 DEFUN ("car-safe", Fcar_safe, 1, 1, 0, /* | |
| 618 Return the car of OBJECT if it is a cons cell, or else nil. | |
| 619 */ | |
| 620 (object)) | |
| 621 { | |
| 622 return CONSP (object) ? XCAR (object) : Qnil; | |
| 623 } | |
| 624 | |
| 625 DEFUN ("cdr", Fcdr, 1, 1, 0, /* | |
| 3343 | 626 Return the cdr of CONS. If CONS is nil, return nil. |
| 627 The cdr of a list is the list without its first element. The cdr of a | |
| 628 dotted pair (A . B) is the second element, B. | |
| 629 | |
| 428 | 630 Error if arg is not nil and not a cons cell. See also `cdr-safe'. |
| 631 */ | |
| 3343 | 632 (cons)) |
| 428 | 633 { |
| 634 while (1) | |
| 635 { | |
| 3343 | 636 if (CONSP (cons)) |
| 637 return XCDR (cons); | |
| 638 else if (NILP (cons)) | |
| 428 | 639 return Qnil; |
| 640 else | |
| 3343 | 641 cons = wrong_type_argument (Qlistp, cons); |
| 428 | 642 } |
| 643 } | |
| 644 | |
| 645 DEFUN ("cdr-safe", Fcdr_safe, 1, 1, 0, /* | |
| 646 Return the cdr of OBJECT if it is a cons cell, else nil. | |
| 647 */ | |
| 648 (object)) | |
| 649 { | |
| 650 return CONSP (object) ? XCDR (object) : Qnil; | |
| 651 } | |
| 652 | |
| 653 DEFUN ("setcar", Fsetcar, 2, 2, 0, /* | |
| 444 | 654 Set the car of CONS-CELL to be NEWCAR. Return NEWCAR. |
| 3343 | 655 The car of a list or a dotted pair is its first element. |
| 428 | 656 */ |
| 444 | 657 (cons_cell, newcar)) |
| 428 | 658 { |
| 444 | 659 if (!CONSP (cons_cell)) |
| 660 cons_cell = wrong_type_argument (Qconsp, cons_cell); | |
| 428 | 661 |
| 444 | 662 XCAR (cons_cell) = newcar; |
| 428 | 663 return newcar; |
| 664 } | |
| 665 | |
| 666 DEFUN ("setcdr", Fsetcdr, 2, 2, 0, /* | |
| 444 | 667 Set the cdr of CONS-CELL to be NEWCDR. Return NEWCDR. |
| 3343 | 668 The cdr of a list is the list without its first element. The cdr of a |
| 669 dotted pair (A . B) is the second element, B. | |
| 428 | 670 */ |
| 444 | 671 (cons_cell, newcdr)) |
| 428 | 672 { |
| 444 | 673 if (!CONSP (cons_cell)) |
| 674 cons_cell = wrong_type_argument (Qconsp, cons_cell); | |
| 428 | 675 |
| 444 | 676 XCDR (cons_cell) = newcdr; |
| 428 | 677 return newcdr; |
| 678 } | |
| 679 | |
| 680 /* Find the function at the end of a chain of symbol function indirections. | |
| 681 | |
| 682 If OBJECT is a symbol, find the end of its function chain and | |
| 683 return the value found there. If OBJECT is not a symbol, just | |
| 684 return it. If there is a cycle in the function chain, signal a | |
| 685 cyclic-function-indirection error. | |
| 686 | |
| 442 | 687 This is like Findirect_function when VOID_FUNCTION_ERRORP is true. |
| 688 When VOID_FUNCTION_ERRORP is false, no error is signaled if the end | |
| 689 of the chain ends up being Qunbound. */ | |
| 428 | 690 Lisp_Object |
| 442 | 691 indirect_function (Lisp_Object object, int void_function_errorp) |
| 428 | 692 { |
| 693 #define FUNCTION_INDIRECTION_SUSPICION_LENGTH 16 | |
| 694 Lisp_Object tortoise, hare; | |
| 695 int count; | |
| 696 | |
| 697 for (hare = tortoise = object, count = 0; | |
| 698 SYMBOLP (hare); | |
| 699 hare = XSYMBOL (hare)->function, count++) | |
| 700 { | |
| 701 if (count < FUNCTION_INDIRECTION_SUSPICION_LENGTH) continue; | |
| 702 | |
| 703 if (count & 1) | |
| 704 tortoise = XSYMBOL (tortoise)->function; | |
| 705 if (EQ (hare, tortoise)) | |
| 706 return Fsignal (Qcyclic_function_indirection, list1 (object)); | |
| 707 } | |
| 708 | |
| 442 | 709 if (void_function_errorp && UNBOUNDP (hare)) |
| 436 | 710 return signal_void_function_error (object); |
| 428 | 711 |
| 712 return hare; | |
| 713 } | |
| 714 | |
| 715 DEFUN ("indirect-function", Findirect_function, 1, 1, 0, /* | |
| 716 Return the function at the end of OBJECT's function chain. | |
| 717 If OBJECT is a symbol, follow all function indirections and return | |
| 718 the final function binding. | |
| 719 If OBJECT is not a symbol, just return it. | |
| 720 Signal a void-function error if the final symbol is unbound. | |
| 721 Signal a cyclic-function-indirection error if there is a loop in the | |
| 722 function chain of symbols. | |
| 723 */ | |
| 724 (object)) | |
| 725 { | |
| 726 return indirect_function (object, 1); | |
| 727 } | |
| 728 | |
| 729 /* Extract and set vector and string elements */ | |
| 730 | |
| 731 DEFUN ("aref", Faref, 2, 2, 0, /* | |
| 732 Return the element of ARRAY at index INDEX. | |
| 733 ARRAY may be a vector, bit vector, or string. INDEX starts at 0. | |
| 734 */ | |
| 735 (array, index_)) | |
| 736 { | |
| 737 EMACS_INT idx; | |
| 738 | |
| 739 retry: | |
| 740 | |
| 741 if (INTP (index_)) idx = XINT (index_); | |
| 742 else if (CHARP (index_)) idx = XCHAR (index_); /* yuck! */ | |
| 743 else | |
| 744 { | |
| 745 index_ = wrong_type_argument (Qinteger_or_char_p, index_); | |
| 746 goto retry; | |
| 747 } | |
| 748 | |
| 749 if (idx < 0) goto range_error; | |
| 750 | |
| 751 if (VECTORP (array)) | |
| 752 { | |
| 753 if (idx >= XVECTOR_LENGTH (array)) goto range_error; | |
| 754 return XVECTOR_DATA (array)[idx]; | |
| 755 } | |
| 756 else if (BIT_VECTORP (array)) | |
| 757 { | |
| 647 | 758 if (idx >= (EMACS_INT) bit_vector_length (XBIT_VECTOR (array))) |
| 759 goto range_error; | |
| 428 | 760 return make_int (bit_vector_bit (XBIT_VECTOR (array), idx)); |
| 761 } | |
| 762 else if (STRINGP (array)) | |
| 763 { | |
| 826 | 764 if (idx >= string_char_length (array)) goto range_error; |
| 867 | 765 return make_char (string_ichar (array, idx)); |
| 428 | 766 } |
| 767 #ifdef LOSING_BYTECODE | |
| 768 else if (COMPILED_FUNCTIONP (array)) | |
| 769 { | |
| 770 /* Weird, gross compatibility kludge */ | |
| 771 return Felt (array, index_); | |
| 772 } | |
| 773 #endif | |
| 774 else | |
| 775 { | |
| 776 check_losing_bytecode ("aref", array); | |
| 777 array = wrong_type_argument (Qarrayp, array); | |
| 778 goto retry; | |
| 779 } | |
| 780 | |
| 781 range_error: | |
| 782 args_out_of_range (array, index_); | |
| 1204 | 783 RETURN_NOT_REACHED (Qnil); |
| 428 | 784 } |
| 785 | |
| 786 DEFUN ("aset", Faset, 3, 3, 0, /* | |
| 787 Store into the element of ARRAY at index INDEX the value NEWVAL. | |
| 788 ARRAY may be a vector, bit vector, or string. INDEX starts at 0. | |
| 789 */ | |
| 790 (array, index_, newval)) | |
| 791 { | |
| 792 EMACS_INT idx; | |
| 793 | |
| 794 retry: | |
| 795 | |
| 796 if (INTP (index_)) idx = XINT (index_); | |
| 797 else if (CHARP (index_)) idx = XCHAR (index_); /* yuck! */ | |
| 798 else | |
| 799 { | |
| 800 index_ = wrong_type_argument (Qinteger_or_char_p, index_); | |
| 801 goto retry; | |
| 802 } | |
| 803 | |
| 804 if (idx < 0) goto range_error; | |
| 805 | |
| 771 | 806 CHECK_LISP_WRITEABLE (array); |
| 428 | 807 if (VECTORP (array)) |
| 808 { | |
| 809 if (idx >= XVECTOR_LENGTH (array)) goto range_error; | |
| 810 XVECTOR_DATA (array)[idx] = newval; | |
| 811 } | |
| 812 else if (BIT_VECTORP (array)) | |
| 813 { | |
| 647 | 814 if (idx >= (EMACS_INT) bit_vector_length (XBIT_VECTOR (array))) |
| 815 goto range_error; | |
| 428 | 816 CHECK_BIT (newval); |
| 817 set_bit_vector_bit (XBIT_VECTOR (array), idx, !ZEROP (newval)); | |
| 818 } | |
| 819 else if (STRINGP (array)) | |
| 820 { | |
| 821 CHECK_CHAR_COERCE_INT (newval); | |
| 826 | 822 if (idx >= string_char_length (array)) goto range_error; |
| 793 | 823 set_string_char (array, idx, XCHAR (newval)); |
| 428 | 824 bump_string_modiff (array); |
| 825 } | |
| 826 else | |
| 827 { | |
| 828 array = wrong_type_argument (Qarrayp, array); | |
| 829 goto retry; | |
| 830 } | |
| 831 | |
| 832 return newval; | |
| 833 | |
| 834 range_error: | |
| 835 args_out_of_range (array, index_); | |
| 1204 | 836 RETURN_NOT_REACHED (Qnil); |
| 428 | 837 } |
| 838 | |
| 839 | |
| 840 /**********************************************************************/ | |
| 841 /* Arithmetic functions */ | |
| 842 /**********************************************************************/ | |
| 2001 | 843 #ifndef WITH_NUMBER_TYPES |
| 428 | 844 typedef struct |
| 845 { | |
| 846 int int_p; | |
| 847 union | |
| 848 { | |
| 849 EMACS_INT ival; | |
| 850 double dval; | |
| 851 } c; | |
| 852 } int_or_double; | |
| 853 | |
| 854 static void | |
| 855 number_char_or_marker_to_int_or_double (Lisp_Object obj, int_or_double *p) | |
| 856 { | |
| 857 retry: | |
| 858 p->int_p = 1; | |
| 859 if (INTP (obj)) p->c.ival = XINT (obj); | |
| 860 else if (CHARP (obj)) p->c.ival = XCHAR (obj); | |
| 861 else if (MARKERP (obj)) p->c.ival = marker_position (obj); | |
| 862 else if (FLOATP (obj)) p->c.dval = XFLOAT_DATA (obj), p->int_p = 0; | |
| 863 else | |
| 864 { | |
| 865 obj = wrong_type_argument (Qnumber_char_or_marker_p, obj); | |
| 866 goto retry; | |
| 867 } | |
| 868 } | |
| 869 | |
| 870 static double | |
| 871 number_char_or_marker_to_double (Lisp_Object obj) | |
| 872 { | |
| 873 retry: | |
| 874 if (INTP (obj)) return (double) XINT (obj); | |
| 875 else if (CHARP (obj)) return (double) XCHAR (obj); | |
| 876 else if (MARKERP (obj)) return (double) marker_position (obj); | |
| 877 else if (FLOATP (obj)) return XFLOAT_DATA (obj); | |
| 878 else | |
| 879 { | |
| 880 obj = wrong_type_argument (Qnumber_char_or_marker_p, obj); | |
| 881 goto retry; | |
| 882 } | |
| 883 } | |
| 2001 | 884 #endif /* WITH_NUMBER_TYPES */ |
| 428 | 885 |
| 886 static EMACS_INT | |
| 887 integer_char_or_marker_to_int (Lisp_Object obj) | |
| 888 { | |
| 889 retry: | |
| 890 if (INTP (obj)) return XINT (obj); | |
| 891 else if (CHARP (obj)) return XCHAR (obj); | |
| 892 else if (MARKERP (obj)) return marker_position (obj); | |
| 893 else | |
| 894 { | |
| 895 obj = wrong_type_argument (Qinteger_char_or_marker_p, obj); | |
| 896 goto retry; | |
| 897 } | |
| 898 } | |
| 899 | |
| 1983 | 900 #ifdef WITH_NUMBER_TYPES |
| 901 | |
| 902 #ifdef HAVE_BIGNUM | |
| 903 #define BIGNUM_CASE(op) \ | |
| 904 case BIGNUM_T: \ | |
| 905 if (!bignum_##op (XBIGNUM_DATA (obj1), XBIGNUM_DATA (obj2))) \ | |
| 906 return Qnil; \ | |
| 907 break; | |
| 908 #else | |
| 909 #define BIGNUM_CASE(op) | |
| 910 #endif /* HAVE_BIGNUM */ | |
| 911 | |
| 912 #ifdef HAVE_RATIO | |
| 913 #define RATIO_CASE(op) \ | |
| 914 case RATIO_T: \ | |
| 915 if (!ratio_##op (XRATIO_DATA (obj1), XRATIO_DATA (obj2))) \ | |
| 916 return Qnil; \ | |
| 917 break; | |
| 918 #else | |
| 919 #define RATIO_CASE(op) | |
| 920 #endif /* HAVE_RATIO */ | |
| 921 | |
| 922 #ifdef HAVE_BIGFLOAT | |
| 923 #define BIGFLOAT_CASE(op) \ | |
| 924 case BIGFLOAT_T: \ | |
| 925 if (!bigfloat_##op (XBIGFLOAT_DATA (obj1), XBIGFLOAT_DATA (obj2))) \ | |
| 926 return Qnil; \ | |
| 927 break; | |
| 928 #else | |
| 929 #define BIGFLOAT_CASE(op) | |
| 930 #endif /* HAVE_BIGFLOAT */ | |
| 931 | |
| 932 #define ARITHCOMPARE_MANY(c_op,op) \ | |
| 933 { \ | |
| 934 REGISTER int i; \ | |
| 935 Lisp_Object obj1, obj2; \ | |
| 936 \ | |
| 937 for (i = 1; i < nargs; i++) \ | |
| 938 { \ | |
| 939 obj1 = args[i - 1]; \ | |
| 940 obj2 = args[i]; \ | |
| 941 switch (promote_args (&obj1, &obj2)) \ | |
| 942 { \ | |
| 943 case FIXNUM_T: \ | |
| 944 if (!(XREALINT (obj1) c_op XREALINT (obj2))) \ | |
| 945 return Qnil; \ | |
| 946 break; \ | |
| 947 BIGNUM_CASE (op) \ | |
| 948 RATIO_CASE (op) \ | |
| 949 case FLOAT_T: \ | |
| 950 if (!(XFLOAT_DATA (obj1) c_op XFLOAT_DATA (obj2))) \ | |
| 951 return Qnil; \ | |
| 952 break; \ | |
| 953 BIGFLOAT_CASE (op) \ | |
| 954 } \ | |
| 955 } \ | |
| 956 return Qt; \ | |
| 957 } | |
| 958 #else /* !WITH_NUMBER_TYPES */ | |
| 959 #define ARITHCOMPARE_MANY(c_op,op) \ | |
| 428 | 960 { \ |
| 961 int_or_double iod1, iod2, *p = &iod1, *q = &iod2; \ | |
| 962 Lisp_Object *args_end = args + nargs; \ | |
| 963 \ | |
| 964 number_char_or_marker_to_int_or_double (*args++, p); \ | |
| 965 \ | |
| 966 while (args < args_end) \ | |
| 967 { \ | |
| 968 number_char_or_marker_to_int_or_double (*args++, q); \ | |
| 969 \ | |
| 970 if (!((p->int_p && q->int_p) ? \ | |
| 1983 | 971 (p->c.ival c_op q->c.ival) : \ |
| 972 ((p->int_p ? (double) p->c.ival : p->c.dval) c_op \ | |
| 428 | 973 (q->int_p ? (double) q->c.ival : q->c.dval)))) \ |
| 974 return Qnil; \ | |
| 975 \ | |
| 976 { /* swap */ int_or_double *r = p; p = q; q = r; } \ | |
| 977 } \ | |
| 978 return Qt; \ | |
| 979 } | |
| 1983 | 980 #endif /* WITH_NUMBER_TYPES */ |
| 428 | 981 |
| 982 DEFUN ("=", Feqlsign, 1, MANY, 0, /* | |
| 983 Return t if all the arguments are numerically equal. | |
| 984 The arguments may 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
|
985 |
|
80cd90837ac5
Add argument information to remaining MANY or UNEVALLED C subrs.
Aidan Kehoe <kehoea@parhasard.net>
parents:
3355
diff
changeset
|
986 arguments: (FIRST &rest ARGS) |
| 428 | 987 */ |
| 988 (int nargs, Lisp_Object *args)) | |
| 989 { | |
| 1983 | 990 ARITHCOMPARE_MANY (==, eql) |
| 428 | 991 } |
| 992 | |
| 993 DEFUN ("<", Flss, 1, MANY, 0, /* | |
| 994 Return t if the sequence of arguments is monotonically increasing. | |
| 3343 | 995 |
| 996 (That is, if there is a second argument, it must be numerically greater than | |
| 997 the first. If there is a third, it must be numerically greater than the | |
| 998 second, and so on.) At least one argument is required. | |
| 999 | |
| 1000 The arguments may 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
|
1001 |
|
80cd90837ac5
Add argument information to remaining MANY or UNEVALLED C subrs.
Aidan Kehoe <kehoea@parhasard.net>
parents:
3355
diff
changeset
|
1002 arguments: (FIRST &rest ARGS) |
| 428 | 1003 */ |
| 1004 (int nargs, Lisp_Object *args)) | |
| 1005 { | |
| 1983 | 1006 ARITHCOMPARE_MANY (<, lt) |
| 428 | 1007 } |
| 1008 | |
| 1009 DEFUN (">", Fgtr, 1, MANY, 0, /* | |
| 1010 Return t if the sequence of arguments is monotonically decreasing. | |
| 3343 | 1011 |
| 1012 (That is, if there is a second argument, it must be numerically less than | |
| 1013 the first. If there is a third, it must be numerically less than the | |
| 1014 second, and so forth.) At least one argument is required. | |
| 1015 | |
| 428 | 1016 The arguments may 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
|
1017 |
|
80cd90837ac5
Add argument information to remaining MANY or UNEVALLED C subrs.
Aidan Kehoe <kehoea@parhasard.net>
parents:
3355
diff
changeset
|
1018 arguments: (FIRST &rest ARGS) |
| 428 | 1019 */ |
| 1020 (int nargs, Lisp_Object *args)) | |
| 1021 { | |
| 1983 | 1022 ARITHCOMPARE_MANY (>, gt) |
| 428 | 1023 } |
| 1024 | |
| 1025 DEFUN ("<=", Fleq, 1, MANY, 0, /* | |
| 1026 Return t if the sequence of arguments is monotonically nondecreasing. | |
| 1027 The arguments may 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
|
1028 |
|
80cd90837ac5
Add argument information to remaining MANY or UNEVALLED C subrs.
Aidan Kehoe <kehoea@parhasard.net>
parents:
3355
diff
changeset
|
1029 arguments: (FIRST &rest ARGS) |
| 428 | 1030 */ |
| 1031 (int nargs, Lisp_Object *args)) | |
| 1032 { | |
| 1983 | 1033 ARITHCOMPARE_MANY (<=, le) |
| 428 | 1034 } |
| 1035 | |
| 1036 DEFUN (">=", Fgeq, 1, MANY, 0, /* | |
| 1037 Return t if the sequence of arguments is monotonically nonincreasing. | |
| 1038 The arguments may 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
|
1039 |
|
80cd90837ac5
Add argument information to remaining MANY or UNEVALLED C subrs.
Aidan Kehoe <kehoea@parhasard.net>
parents:
3355
diff
changeset
|
1040 arguments: (FIRST &rest ARGS) |
| 428 | 1041 */ |
| 1042 (int nargs, Lisp_Object *args)) | |
| 1043 { | |
| 1983 | 1044 ARITHCOMPARE_MANY (>=, ge) |
| 428 | 1045 } |
| 1046 | |
| 1983 | 1047 /* Unlike all the other comparisons, this is an O(N*N) algorithm. But who |
| 1048 cares? Inspection of all elisp code distributed by xemacs.org shows that | |
| 1049 it is almost always called with 2 arguments, rarely with 3, and never with | |
| 1050 more than 3. The constant factors of algorithms with better asymptotic | |
| 1051 complexity are higher, which means that those algorithms will run SLOWER | |
| 1052 than this one in the common case. Optimize the common case! */ | |
| 428 | 1053 DEFUN ("/=", Fneq, 1, MANY, 0, /* |
| 1054 Return t if no two arguments are numerically equal. | |
| 1055 The arguments may 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
|
1056 |
|
80cd90837ac5
Add argument information to remaining MANY or UNEVALLED C subrs.
Aidan Kehoe <kehoea@parhasard.net>
parents:
3355
diff
changeset
|
1057 arguments: (FIRST &rest ARGS) |
| 428 | 1058 */ |
| 1059 (int nargs, Lisp_Object *args)) | |
| 1060 { | |
| 1983 | 1061 #ifdef WITH_NUMBER_TYPES |
| 1062 REGISTER int i, j; | |
| 1063 Lisp_Object obj1, obj2; | |
| 1064 | |
| 1065 for (i = 0; i < nargs - 1; i++) | |
| 1066 { | |
| 1067 obj1 = args[i]; | |
| 1068 for (j = i + 1; j < nargs; j++) | |
| 1069 { | |
| 1070 obj2 = args[j]; | |
| 1071 switch (promote_args (&obj1, &obj2)) | |
| 1072 { | |
| 1073 case FIXNUM_T: | |
| 1074 if (XREALINT (obj1) == XREALINT (obj2)) | |
| 1075 return Qnil; | |
| 1076 break; | |
| 1077 #ifdef HAVE_BIGNUM | |
| 1078 case BIGNUM_T: | |
| 1079 if (bignum_eql (XBIGNUM_DATA (obj1), XBIGNUM_DATA (obj2))) | |
| 1080 return Qnil; | |
| 1081 break; | |
| 1082 #endif | |
| 1083 #ifdef HAVE_RATIO | |
| 1084 case RATIO_T: | |
| 1085 if (ratio_eql (XRATIO_DATA (obj1), XRATIO_DATA (obj2))) | |
| 1086 return Qnil; | |
| 1087 break; | |
| 1088 #endif | |
| 1089 case FLOAT_T: | |
| 1090 if (XFLOAT_DATA (obj1) == XFLOAT_DATA (obj2)) | |
| 1091 return Qnil; | |
| 1092 break; | |
| 1093 #ifdef HAVE_BIGFLOAT | |
| 1094 case BIGFLOAT_T: | |
| 1095 if (bigfloat_eql (XBIGFLOAT_DATA (obj1), XBIGFLOAT_DATA (obj2))) | |
| 1096 return Qnil; | |
| 1097 break; | |
| 1098 #endif | |
| 1099 } | |
| 1100 } | |
| 1101 } | |
| 1102 return Qt; | |
| 1103 #else /* !WITH_NUMBER_TYPES */ | |
| 428 | 1104 Lisp_Object *args_end = args + nargs; |
| 1105 Lisp_Object *p, *q; | |
| 1106 | |
| 1107 /* Unlike all the other comparisons, this is an N*N algorithm. | |
| 1108 We could use a hash table for nargs > 50 to make this linear. */ | |
| 1109 for (p = args; p < args_end; p++) | |
| 1110 { | |
| 1111 int_or_double iod1, iod2; | |
| 1112 number_char_or_marker_to_int_or_double (*p, &iod1); | |
| 1113 | |
| 1114 for (q = p + 1; q < args_end; q++) | |
| 1115 { | |
| 1116 number_char_or_marker_to_int_or_double (*q, &iod2); | |
| 1117 | |
| 1118 if (!((iod1.int_p && iod2.int_p) ? | |
| 1119 (iod1.c.ival != iod2.c.ival) : | |
| 1120 ((iod1.int_p ? (double) iod1.c.ival : iod1.c.dval) != | |
| 1121 (iod2.int_p ? (double) iod2.c.ival : iod2.c.dval)))) | |
| 1122 return Qnil; | |
| 1123 } | |
| 1124 } | |
| 1125 return Qt; | |
| 1983 | 1126 #endif /* WITH_NUMBER_TYPES */ |
| 428 | 1127 } |
| 1128 | |
| 1129 DEFUN ("zerop", Fzerop, 1, 1, 0, /* | |
| 1130 Return t if NUMBER is zero. | |
| 1131 */ | |
| 1132 (number)) | |
| 1133 { | |
| 1134 retry: | |
| 1135 if (INTP (number)) | |
| 1136 return EQ (number, Qzero) ? Qt : Qnil; | |
| 1983 | 1137 #ifdef HAVE_BIGNUM |
| 1138 else if (BIGNUMP (number)) | |
| 1139 return bignum_sign (XBIGNUM_DATA (number)) == 0 ? Qt : Qnil; | |
| 1140 #endif | |
| 1141 #ifdef HAVE_RATIO | |
| 1142 else if (RATIOP (number)) | |
| 1143 return ratio_sign (XRATIO_DATA (number)) == 0 ? Qt : Qnil; | |
| 1144 #endif | |
| 428 | 1145 else if (FLOATP (number)) |
| 1146 return XFLOAT_DATA (number) == 0.0 ? Qt : Qnil; | |
| 1983 | 1147 #ifdef HAVE_BIGFLOAT |
| 1148 else if (BIGFLOATP (number)) | |
| 1149 return bigfloat_sign (XBIGFLOAT_DATA (number)) == 0 ? Qt : Qnil; | |
| 1150 #endif | |
| 428 | 1151 else |
| 1152 { | |
| 1153 number = wrong_type_argument (Qnumberp, number); | |
| 1154 goto retry; | |
| 1155 } | |
| 1156 } | |
| 1157 | |
| 1158 /* Convert between a 32-bit value and a cons of two 16-bit values. | |
| 1159 This is used to pass 32-bit integers to and from the user. | |
| 1160 Use time_to_lisp() and lisp_to_time() for time values. | |
| 1161 | |
| 1162 If you're thinking of using this to store a pointer into a Lisp Object | |
| 1163 for internal purposes (such as when calling record_unwind_protect()), | |
| 1164 try using make_opaque_ptr()/get_opaque_ptr() instead. */ | |
| 1165 Lisp_Object | |
| 1166 word_to_lisp (unsigned int item) | |
| 1167 { | |
| 1168 return Fcons (make_int (item >> 16), make_int (item & 0xffff)); | |
| 1169 } | |
| 1170 | |
| 1171 unsigned int | |
| 1172 lisp_to_word (Lisp_Object item) | |
| 1173 { | |
| 1174 if (INTP (item)) | |
| 1175 return XINT (item); | |
| 1176 else | |
| 1177 { | |
| 1178 Lisp_Object top = Fcar (item); | |
| 1179 Lisp_Object bot = Fcdr (item); | |
| 1180 CHECK_INT (top); | |
| 1181 CHECK_INT (bot); | |
| 1182 return (XINT (top) << 16) | (XINT (bot) & 0xffff); | |
| 1183 } | |
| 1184 } | |
| 1185 | |
| 1186 | |
| 1187 DEFUN ("number-to-string", Fnumber_to_string, 1, 1, 0, /* | |
| 444 | 1188 Convert NUMBER to a string by printing it in decimal. |
| 428 | 1189 Uses a minus sign if negative. |
| 444 | 1190 NUMBER may be an integer or a floating point number. |
| 1983 | 1191 If supported, it may also be a ratio. |
| 428 | 1192 */ |
| 444 | 1193 (number)) |
| 428 | 1194 { |
| 1983 | 1195 #ifdef WITH_NUMBER_TYPES |
| 1196 CHECK_NUMBER (number); | |
| 1197 #else | |
| 444 | 1198 CHECK_INT_OR_FLOAT (number); |
| 1983 | 1199 #endif |
| 428 | 1200 |
| 444 | 1201 if (FLOATP (number)) |
| 428 | 1202 { |
| 1203 char pigbuf[350]; /* see comments in float_to_string */ | |
| 1204 | |
| 444 | 1205 float_to_string (pigbuf, XFLOAT_DATA (number)); |
| 428 | 1206 return build_string (pigbuf); |
| 1207 } | |
| 1983 | 1208 #ifdef HAVE_BIGNUM |
| 1209 if (BIGNUMP (number)) | |
| 1210 { | |
| 1211 char *str = bignum_to_string (XBIGNUM_DATA (number), 10); | |
| 1212 Lisp_Object retval = build_string (str); | |
| 1213 xfree (str, char *); | |
| 1214 return retval; | |
| 1215 } | |
| 1216 #endif | |
| 1217 #ifdef HAVE_RATIO | |
| 1218 if (RATIOP (number)) | |
| 1219 { | |
| 1220 char *str = ratio_to_string (XRATIO_DATA (number), 10); | |
| 1221 Lisp_Object retval = build_string (str); | |
| 1222 xfree (str, char *); | |
| 1223 return retval; | |
| 1224 } | |
| 1225 #endif | |
| 1226 #ifdef HAVE_BIGFLOAT | |
| 1227 if (BIGFLOATP (number)) | |
| 1228 { | |
| 1229 char *str = bigfloat_to_string (XBIGFLOAT_DATA (number), 10); | |
| 1230 Lisp_Object retval = build_string (str); | |
| 1231 xfree (str, char *); | |
| 1232 return retval; | |
| 1233 } | |
| 1234 #endif | |
| 428 | 1235 |
| 603 | 1236 { |
| 1237 char buffer[DECIMAL_PRINT_SIZE (long)]; | |
| 1238 | |
| 1239 long_to_string (buffer, XINT (number)); | |
| 1240 return build_string (buffer); | |
| 1241 } | |
| 428 | 1242 } |
| 1243 | |
| 2001 | 1244 #ifndef HAVE_BIGNUM |
| 428 | 1245 static int |
| 1246 digit_to_number (int character, int base) | |
| 1247 { | |
| 1248 /* Assumes ASCII */ | |
| 1249 int digit = ((character >= '0' && character <= '9') ? character - '0' : | |
| 1250 (character >= 'a' && character <= 'z') ? character - 'a' + 10 : | |
| 1251 (character >= 'A' && character <= 'Z') ? character - 'A' + 10 : | |
| 1252 -1); | |
| 1253 | |
| 1254 return digit >= base ? -1 : digit; | |
| 1255 } | |
| 2001 | 1256 #endif |
| 428 | 1257 |
| 1258 DEFUN ("string-to-number", Fstring_to_number, 1, 2, 0, /* | |
| 444 | 1259 Convert STRING to a number by parsing it as a number in base BASE. |
| 428 | 1260 This parses both integers and floating point numbers. |
| 1983 | 1261 If they are supported, it also reads ratios. |
| 428 | 1262 It ignores leading spaces and tabs. |
| 1263 | |
| 444 | 1264 If BASE is nil or omitted, base 10 is used. |
| 1265 BASE must be an integer between 2 and 16 (inclusive). | |
| 428 | 1266 Floating point numbers always use base 10. |
| 1267 */ | |
| 1268 (string, base)) | |
| 1269 { | |
| 1995 | 1270 Ibyte *p; |
| 428 | 1271 int b; |
| 1272 | |
| 1273 CHECK_STRING (string); | |
| 1274 | |
| 1275 if (NILP (base)) | |
| 1276 b = 10; | |
| 1277 else | |
| 1278 { | |
| 1279 CHECK_INT (base); | |
| 1280 b = XINT (base); | |
| 1281 check_int_range (b, 2, 16); | |
| 1282 } | |
| 1283 | |
| 1995 | 1284 p = XSTRING_DATA (string); |
| 428 | 1285 |
| 1286 /* Skip any whitespace at the front of the number. Some versions of | |
| 1287 atoi do this anyway, so we might as well make Emacs lisp consistent. */ | |
| 1288 while (*p == ' ' || *p == '\t') | |
| 1289 p++; | |
| 1290 | |
| 1995 | 1291 if (isfloat_string ((const char *) p) && b == 10) |
| 1983 | 1292 { |
| 1293 #ifdef HAVE_BIGFLOAT | |
| 1294 if (ZEROP (Vdefault_float_precision)) | |
| 1295 #endif | |
| 1995 | 1296 return make_float (atof ((const char *) p)); |
| 1983 | 1297 #ifdef HAVE_BIGFLOAT |
| 1298 else | |
| 1299 { | |
| 2013 | 1300 /* The GMP version of bigfloat_set_string (mpf_set_str) has the |
| 1301 following limitation: if p starts with a '+' sign, it does | |
| 1302 nothing; i.e., it leaves its bigfloat argument untouched. | |
| 1303 Therefore, move p past any leading '+' signs. */ | |
| 2010 | 1304 if (*p == '+') |
| 1305 p++; | |
| 1983 | 1306 bigfloat_set_prec (scratch_bigfloat, bigfloat_get_default_prec ()); |
| 1995 | 1307 bigfloat_set_string (scratch_bigfloat, (const char *) p, b); |
| 1983 | 1308 return make_bigfloat_bf (scratch_bigfloat); |
| 1309 } | |
| 1310 #endif | |
| 1311 } | |
| 1312 | |
| 1313 #ifdef HAVE_RATIO | |
| 1314 if (qxestrchr (p, '/') != NULL) | |
| 1315 { | |
| 2013 | 1316 /* The GMP version of ratio_set_string (mpq_set_str) has the following |
| 1317 limitations: | |
| 1318 - If p starts with a '+' sign, it does nothing; i.e., it leaves its | |
| 1319 ratio argument untouched. | |
| 1320 - If p has a '+' sign after the '/' (e.g., 300/+400), it sets the | |
| 1321 numerator from the string, but *leaves the denominator unchanged*. | |
| 1322 - If p has trailing nonnumeric characters, it sets the numerator from | |
| 1323 the string, but leaves the denominator unchanged. | |
| 1324 - If p has more than one '/', (e.g., 1/2/3), then it sets the | |
| 1325 numerator from the string, but leaves the denominator unchanged. | |
| 1326 | |
| 1327 Therefore, move p past any leading '+' signs, temporarily drop a null | |
| 1328 after the numeric characters we are trying to convert, and then put | |
| 1329 the nulled character back afterward. I am not going to fix problem | |
| 1330 #2; just don't write ratios that look like that. */ | |
| 1331 Ibyte *end, save; | |
| 1332 | |
| 2010 | 1333 if (*p == '+') |
| 1334 p++; | |
| 2013 | 1335 |
| 2014 | 1336 end = p; |
| 1337 if (*end == '-') | |
| 1338 end++; | |
| 1339 while ((*end >= '0' && *end <= '9') || | |
| 2013 | 1340 (b > 10 && *end >= 'a' && *end <= 'a' + b - 11) || |
| 2014 | 1341 (b > 10 && *end >= 'A' && *end <= 'A' + b - 11)) |
| 1342 end++; | |
| 2013 | 1343 if (*end == '/') |
| 2014 | 1344 { |
| 1345 end++; | |
| 1346 if (*end == '-') | |
| 1347 end++; | |
| 1348 while ((*end >= '0' && *end <= '9') || | |
| 1349 (b > 10 && *end >= 'a' && *end <= 'a' + b - 11) || | |
| 1350 (b > 10 && *end >= 'A' && *end <= 'A' + b - 11)) | |
| 1351 end++; | |
| 1352 } | |
| 2013 | 1353 save = *end; |
| 1354 *end = '\0'; | |
| 1995 | 1355 ratio_set_string (scratch_ratio, (const char *) p, b); |
| 2013 | 1356 *end = save; |
| 1357 ratio_canonicalize (scratch_ratio); | |
| 1983 | 1358 return make_ratio_rt (scratch_ratio); |
| 1359 } | |
| 1360 #endif /* HAVE_RATIO */ | |
| 1361 | |
| 1362 #ifdef HAVE_BIGNUM | |
| 2013 | 1363 { |
| 1364 /* The GMP version of bignum_set_string (mpz_set_str) has the following | |
| 1365 limitations: | |
| 1366 - If p starts with a '+' sign, it does nothing; i.e., it leaves its | |
| 1367 bignum argument untouched. | |
| 1368 - If p is the empty string, it does nothing. | |
| 1369 - If p has trailing nonnumeric characters, it does nothing. | |
| 1370 | |
| 1371 Therefore, move p past any leading '+' signs, temporarily drop a null | |
| 1372 after the numeric characters we are trying to convert, special case the | |
| 1373 empty string, and then put the nulled character back afterward. */ | |
| 1374 Ibyte *end, save; | |
| 1375 Lisp_Object retval; | |
| 1376 | |
| 1377 if (*p == '+') | |
| 1378 p++; | |
| 2014 | 1379 end = p; |
| 1380 if (*end == '-') | |
| 1381 end++; | |
| 1382 while ((*end >= '0' && *end <= '9') || | |
| 2013 | 1383 (b > 10 && *end >= 'a' && *end <= 'a' + b - 11) || |
| 2014 | 1384 (b > 10 && *end >= 'A' && *end <= 'A' + b - 11)) |
| 1385 end++; | |
| 2013 | 1386 save = *end; |
| 1387 *end = '\0'; | |
| 1388 if (*p == '\0') | |
| 1389 retval = make_int (0); | |
| 1390 else | |
| 1391 { | |
| 1392 bignum_set_string (scratch_bignum, (const char *) p, b); | |
| 1393 retval = Fcanonicalize_number (make_bignum_bg (scratch_bignum)); | |
| 1394 } | |
| 1395 *end = save; | |
| 1396 return retval; | |
| 1397 } | |
| 1983 | 1398 #else |
| 428 | 1399 if (b == 10) |
| 1400 { | |
| 1401 /* Use the system-provided functions for base 10. */ | |
| 1402 #if SIZEOF_EMACS_INT == SIZEOF_INT | |
| 2054 | 1403 return make_int (atoi ((char*) p)); |
| 428 | 1404 #elif SIZEOF_EMACS_INT == SIZEOF_LONG |
| 2054 | 1405 return make_int (atol ((char*) p)); |
| 428 | 1406 #elif SIZEOF_EMACS_INT == SIZEOF_LONG_LONG |
| 2054 | 1407 return make_int (atoll ((char*) p)); |
| 428 | 1408 #endif |
| 1409 } | |
| 1410 else | |
| 1411 { | |
| 444 | 1412 int negative = 1; |
| 428 | 1413 EMACS_INT v = 0; |
| 1414 | |
| 1415 if (*p == '-') | |
| 1416 { | |
| 1417 negative = -1; | |
| 1418 p++; | |
| 1419 } | |
| 1420 else if (*p == '+') | |
| 1421 p++; | |
| 1422 while (1) | |
| 1423 { | |
| 444 | 1424 int digit = digit_to_number (*p++, b); |
| 428 | 1425 if (digit < 0) |
| 1426 break; | |
| 1427 v = v * b + digit; | |
| 1428 } | |
| 1429 return make_int (negative * v); | |
| 1430 } | |
| 1983 | 1431 #endif /* HAVE_BIGNUM */ |
| 428 | 1432 } |
| 1433 | |
| 1434 | |
| 1435 DEFUN ("+", Fplus, 0, MANY, 0, /* | |
| 1436 Return sum of any number of arguments. | |
| 1437 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
|
1438 |
|
80cd90837ac5
Add argument information to remaining MANY or UNEVALLED C subrs.
Aidan Kehoe <kehoea@parhasard.net>
parents:
3355
diff
changeset
|
1439 arguments: (&rest ARGS) |
| 428 | 1440 */ |
| 1441 (int nargs, Lisp_Object *args)) | |
| 1442 { | |
| 1983 | 1443 #ifdef WITH_NUMBER_TYPES |
| 1444 REGISTER int i; | |
| 1445 Lisp_Object accum = make_int (0), addend; | |
| 1446 | |
| 1447 for (i = 0; i < nargs; i++) | |
| 1448 { | |
| 1449 addend = args[i]; | |
| 1450 switch (promote_args (&accum, &addend)) | |
| 1451 { | |
| 1452 case FIXNUM_T: | |
| 1453 accum = make_integer (XREALINT (accum) + XREALINT (addend)); | |
| 1454 break; | |
| 1455 #ifdef HAVE_BIGNUM | |
| 1456 case BIGNUM_T: | |
| 1457 bignum_add (scratch_bignum, XBIGNUM_DATA (accum), | |
| 1458 XBIGNUM_DATA (addend)); | |
| 1459 accum = make_bignum_bg (scratch_bignum); | |
| 1460 break; | |
| 1461 #endif | |
| 1462 #ifdef HAVE_RATIO | |
| 1463 case RATIO_T: | |
| 1464 ratio_add (scratch_ratio, XRATIO_DATA (accum), | |
| 1465 XRATIO_DATA (addend)); | |
| 1466 accum = make_ratio_rt (scratch_ratio); | |
| 1467 break; | |
| 1468 #endif | |
| 1469 case FLOAT_T: | |
| 1470 accum = make_float (XFLOAT_DATA (accum) + XFLOAT_DATA (addend)); | |
| 1471 break; | |
| 1472 #ifdef HAVE_BIGFLOAT | |
| 1473 case BIGFLOAT_T: | |
| 1474 bigfloat_set_prec (scratch_bigfloat, | |
| 1475 max (XBIGFLOAT_GET_PREC (addend), | |
| 1476 XBIGFLOAT_GET_PREC (accum))); | |
| 1477 bigfloat_add (scratch_bigfloat, XBIGFLOAT_DATA (accum), | |
| 1478 XBIGFLOAT_DATA (addend)); | |
| 1479 accum = make_bigfloat_bf (scratch_bigfloat); | |
| 1480 break; | |
| 1481 #endif | |
| 1482 } | |
| 1483 } | |
| 1484 return Fcanonicalize_number (accum); | |
| 1485 #else /* !WITH_NUMBER_TYPES */ | |
| 428 | 1486 EMACS_INT iaccum = 0; |
| 1487 Lisp_Object *args_end = args + nargs; | |
| 1488 | |
| 1489 while (args < args_end) | |
| 1490 { | |
| 1491 int_or_double iod; | |
| 1492 number_char_or_marker_to_int_or_double (*args++, &iod); | |
| 1493 if (iod.int_p) | |
| 1494 iaccum += iod.c.ival; | |
| 1495 else | |
| 1496 { | |
| 1497 double daccum = (double) iaccum + iod.c.dval; | |
| 1498 while (args < args_end) | |
| 1499 daccum += number_char_or_marker_to_double (*args++); | |
| 1500 return make_float (daccum); | |
| 1501 } | |
| 1502 } | |
| 1503 | |
| 1504 return make_int (iaccum); | |
| 1983 | 1505 #endif /* WITH_NUMBER_TYPES */ |
| 428 | 1506 } |
| 1507 | |
| 1508 DEFUN ("-", Fminus, 1, MANY, 0, /* | |
| 1509 Negate number or subtract numbers, characters or markers. | |
| 1510 With one arg, negates it. With more than one arg, | |
| 1511 subtracts all but the first from the first. | |
|
4693
80cd90837ac5
Add argument information to remaining MANY or UNEVALLED C subrs.
Aidan Kehoe <kehoea@parhasard.net>
parents:
3355
diff
changeset
|
1512 |
|
80cd90837ac5
Add argument information to remaining MANY or UNEVALLED C subrs.
Aidan Kehoe <kehoea@parhasard.net>
parents:
3355
diff
changeset
|
1513 arguments: (FIRST &rest ARGS) |
| 428 | 1514 */ |
| 1515 (int nargs, Lisp_Object *args)) | |
| 1516 { | |
| 1983 | 1517 #ifdef WITH_NUMBER_TYPES |
| 1518 REGISTER int i; | |
| 1519 Lisp_Object accum = args[0], subtrahend; | |
| 1520 | |
| 1521 if (nargs == 1) | |
| 1522 { | |
| 1523 if (CHARP (accum)) | |
| 1524 accum = make_int (XCHAR (accum)); | |
| 1525 else if (MARKERP (accum)) | |
| 1526 accum = make_int (marker_position (accum)); | |
| 1527 | |
| 1528 /* Invert the sign of accum */ | |
| 1529 CHECK_NUMBER (accum); | |
| 1530 switch (get_number_type (accum)) | |
| 1531 { | |
| 1532 case FIXNUM_T: | |
| 1533 return make_integer (-XREALINT (accum)); | |
| 1534 #ifdef HAVE_BIGNUM | |
| 1535 case BIGNUM_T: | |
| 1536 bignum_neg (scratch_bignum, XBIGNUM_DATA (accum)); | |
| 1537 return Fcanonicalize_number (make_bignum_bg (scratch_bignum)); | |
| 1538 #endif | |
| 1539 #ifdef HAVE_RATIO | |
| 1540 case RATIO_T: | |
| 1541 ratio_neg (scratch_ratio, XRATIO_DATA (accum)); | |
| 1542 return make_ratio_rt (scratch_ratio); | |
| 1543 #endif | |
| 1544 case FLOAT_T: | |
| 1545 return make_float (-XFLOAT_DATA (accum)); | |
| 1546 #ifdef HAVE_BIGFLOAT | |
| 1547 case BIGFLOAT_T: | |
| 1548 bigfloat_set_prec (scratch_bigfloat, XBIGFLOAT_GET_PREC (accum)); | |
| 1549 bigfloat_neg (scratch_bigfloat, XBIGFLOAT_DATA (accum)); | |
| 1550 return make_bigfloat_bf (scratch_bigfloat); | |
| 1551 #endif | |
| 1552 } | |
| 1553 } | |
| 1554 else | |
| 1555 { | |
| 1556 /* Subtrace the remaining arguments from accum */ | |
| 1557 for (i = 1; i < nargs; i++) | |
| 1558 { | |
| 1559 subtrahend = args[i]; | |
| 1560 switch (promote_args (&accum, &subtrahend)) | |
| 1561 { | |
| 1562 case FIXNUM_T: | |
| 1563 accum = make_integer (XREALINT (accum) - XREALINT (subtrahend)); | |
| 1564 break; | |
| 1565 #ifdef HAVE_BIGNUM | |
| 1566 case BIGNUM_T: | |
| 1567 bignum_sub (scratch_bignum, XBIGNUM_DATA (accum), | |
| 1568 XBIGNUM_DATA (subtrahend)); | |
| 1569 accum = make_bignum_bg (scratch_bignum); | |
| 1570 break; | |
| 1571 #endif | |
| 1572 #ifdef HAVE_RATIO | |
| 1573 case RATIO_T: | |
| 1574 ratio_sub (scratch_ratio, XRATIO_DATA (accum), | |
| 1575 XRATIO_DATA (subtrahend)); | |
| 1576 accum = make_ratio_rt (scratch_ratio); | |
| 1577 break; | |
| 1578 #endif | |
| 1579 case FLOAT_T: | |
| 1580 accum = | |
| 1581 make_float (XFLOAT_DATA (accum) - XFLOAT_DATA (subtrahend)); | |
| 1582 break; | |
| 1583 #ifdef HAVE_BIGFLOAT | |
| 1584 case BIGFLOAT_T: | |
| 1585 bigfloat_set_prec (scratch_bigfloat, | |
| 1586 max (XBIGFLOAT_GET_PREC (subtrahend), | |
| 1587 XBIGFLOAT_GET_PREC (accum))); | |
| 1588 bigfloat_sub (scratch_bigfloat, XBIGFLOAT_DATA (accum), | |
| 1589 XBIGFLOAT_DATA (subtrahend)); | |
| 1590 accum = make_bigfloat_bf (scratch_bigfloat); | |
| 1591 break; | |
| 1592 #endif | |
| 1593 } | |
| 1594 } | |
| 1595 } | |
| 1596 return Fcanonicalize_number (accum); | |
| 1597 #else /* !WITH_NUMBER_TYPES */ | |
| 428 | 1598 EMACS_INT iaccum; |
| 1599 double daccum; | |
| 1600 Lisp_Object *args_end = args + nargs; | |
| 1601 int_or_double iod; | |
| 1602 | |
| 1603 number_char_or_marker_to_int_or_double (*args++, &iod); | |
| 1604 if (iod.int_p) | |
| 1605 iaccum = nargs > 1 ? iod.c.ival : - iod.c.ival; | |
| 1606 else | |
| 1607 { | |
| 1608 daccum = nargs > 1 ? iod.c.dval : - iod.c.dval; | |
| 1609 goto do_float; | |
| 1610 } | |
| 1611 | |
| 1612 while (args < args_end) | |
| 1613 { | |
| 1614 number_char_or_marker_to_int_or_double (*args++, &iod); | |
| 1615 if (iod.int_p) | |
| 1616 iaccum -= iod.c.ival; | |
| 1617 else | |
| 1618 { | |
| 1619 daccum = (double) iaccum - iod.c.dval; | |
| 1620 goto do_float; | |
| 1621 } | |
| 1622 } | |
| 1623 | |
| 1624 return make_int (iaccum); | |
| 1625 | |
| 1626 do_float: | |
| 1627 for (; args < args_end; args++) | |
| 1628 daccum -= number_char_or_marker_to_double (*args); | |
| 1629 return make_float (daccum); | |
| 1983 | 1630 #endif /* WITH_NUMBER_TYPES */ |
| 428 | 1631 } |
| 1632 | |
| 1633 DEFUN ("*", Ftimes, 0, MANY, 0, /* | |
| 1634 Return product of any number of arguments. | |
| 1635 The arguments should all be numbers, characters or markers. | |
|
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parents:
3355
diff
changeset
|
1636 |
|
80cd90837ac5
Add argument information to remaining MANY or UNEVALLED C subrs.
Aidan Kehoe <kehoea@parhasard.net>
parents:
3355
diff
changeset
|
1637 arguments: (&rest ARGS) |
| 428 | 1638 */ |
| 1639 (int nargs, Lisp_Object *args)) | |
| 1640 { | |
| 1983 | 1641 #ifdef WITH_NUMBER_TYPES |
| 1642 REGISTER int i; | |
| 1643 /* Start with a bignum to avoid overflow */ | |
| 1644 Lisp_Object accum = make_bignum (1L), multiplier; | |
| 1645 | |
| 1646 for (i = 0; i < nargs; i++) | |
| 1647 { | |
| 1648 multiplier = args[i]; | |
| 1649 switch (promote_args (&accum, &multiplier)) | |
| 1650 { | |
| 1651 #ifdef HAVE_BIGNUM | |
| 1652 case BIGNUM_T: | |
| 1653 bignum_mul (scratch_bignum, XBIGNUM_DATA (accum), | |
| 1654 XBIGNUM_DATA (multiplier)); | |
| 1655 accum = make_bignum_bg (scratch_bignum); | |
| 1656 break; | |
| 1657 #endif | |
| 1658 #ifdef HAVE_RATIO | |
| 1659 case RATIO_T: | |
| 1660 ratio_mul (scratch_ratio, XRATIO_DATA (accum), | |
| 1661 XRATIO_DATA (multiplier)); | |
| 1662 accum = make_ratio_rt (scratch_ratio); | |
| 1663 break; | |
| 1664 #endif | |
| 1665 case FLOAT_T: | |
| 1666 accum = make_float (XFLOAT_DATA (accum) * XFLOAT_DATA (multiplier)); | |
| 1667 break; | |
| 1668 #ifdef HAVE_BIGFLOAT | |
| 1669 case BIGFLOAT_T: | |
| 1670 bigfloat_set_prec (scratch_bigfloat, | |
| 1671 max (XBIGFLOAT_GET_PREC (multiplier), | |
| 1672 XBIGFLOAT_GET_PREC (accum))); | |
| 1673 bigfloat_mul (scratch_bigfloat, XBIGFLOAT_DATA (accum), | |
| 1674 XBIGFLOAT_DATA (multiplier)); | |
| 1675 accum = make_bigfloat_bf (scratch_bigfloat); | |
| 1676 break; | |
| 1677 #endif | |
| 1678 } | |
| 1679 } | |
| 1680 return Fcanonicalize_number (accum); | |
| 1681 #else /* !WITH_NUMBER_TYPES */ | |
| 428 | 1682 EMACS_INT iaccum = 1; |
| 1683 Lisp_Object *args_end = args + nargs; | |
| 1684 | |
| 1685 while (args < args_end) | |
| 1686 { | |
| 1687 int_or_double iod; | |
| 1688 number_char_or_marker_to_int_or_double (*args++, &iod); | |
| 1689 if (iod.int_p) | |
| 1690 iaccum *= iod.c.ival; | |
| 1691 else | |
| 1692 { | |
| 1693 double daccum = (double) iaccum * iod.c.dval; | |
| 1694 while (args < args_end) | |
| 1695 daccum *= number_char_or_marker_to_double (*args++); | |
| 1696 return make_float (daccum); | |
| 1697 } | |
| 1698 } | |
| 1699 | |
| 1700 return make_int (iaccum); | |
| 1983 | 1701 #endif /* WITH_NUMBER_TYPES */ |
| 428 | 1702 } |
| 1703 | |
| 1983 | 1704 #ifdef HAVE_RATIO |
| 1705 DEFUN ("div", Fdiv, 1, MANY, 0, /* | |
| 1706 Same as `/', but dividing integers creates a ratio instead of truncating. | |
| 1707 Note that this is a departure from Common Lisp, where / creates ratios when | |
| 1708 dividing integers. Having a separate function lets us avoid breaking existing | |
| 1709 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
|
1710 |
|
80cd90837ac5
Add argument information to remaining MANY or UNEVALLED C subrs.
Aidan Kehoe <kehoea@parhasard.net>
parents:
3355
diff
changeset
|
1711 arguments: (FIRST &rest ARGS) |
| 1983 | 1712 */ |
| 1713 (int nargs, Lisp_Object *args)) | |
| 1714 { | |
| 1715 REGISTER int i; | |
| 1716 Lisp_Object accum, divisor; | |
| 1717 | |
| 1718 if (nargs == 1) | |
| 1719 { | |
| 1720 i = 0; | |
| 1721 accum = make_int (1); | |
| 1722 } | |
| 1723 else | |
| 1724 { | |
| 1725 i = 1; | |
| 1726 accum = args[0]; | |
| 1727 } | |
| 1728 for (; i < nargs; i++) | |
| 1729 { | |
| 1730 divisor = args[i]; | |
| 1731 switch (promote_args (&accum, &divisor)) | |
| 1732 { | |
| 1733 case FIXNUM_T: | |
| 1734 if (XREALINT (divisor) == 0) goto divide_by_zero; | |
| 1735 bignum_set_long (scratch_bignum, XREALINT (accum)); | |
| 1736 bignum_set_long (scratch_bignum2, XREALINT (divisor)); | |
| 1737 accum = make_ratio_bg (scratch_bignum, scratch_bignum2); | |
| 1738 break; | |
| 1739 case BIGNUM_T: | |
| 1740 if (bignum_sign (XBIGNUM_DATA (divisor)) == 0) goto divide_by_zero; | |
| 1741 accum = make_ratio_bg (XBIGNUM_DATA (accum), XBIGNUM_DATA (divisor)); | |
| 1742 break; | |
| 1743 case RATIO_T: | |
| 1744 if (ratio_sign (XRATIO_DATA (divisor)) == 0) goto divide_by_zero; | |
| 1745 ratio_div (scratch_ratio, XRATIO_DATA (accum), | |
| 1746 XRATIO_DATA (divisor)); | |
| 1747 accum = make_ratio_rt (scratch_ratio); | |
| 1748 break; | |
| 1749 case FLOAT_T: | |
| 1750 if (XFLOAT_DATA (divisor) == 0.0) goto divide_by_zero; | |
| 1751 accum = make_float (XFLOAT_DATA (accum) / XFLOAT_DATA (divisor)); | |
| 1752 break; | |
| 1753 #ifdef HAVE_BIGFLOAT | |
| 1754 case BIGFLOAT_T: | |
| 1755 if (bigfloat_sign (XBIGFLOAT_DATA (divisor)) == 0) | |
| 1756 goto divide_by_zero; | |
| 1757 bigfloat_set_prec (scratch_bigfloat, | |
| 1758 max (XBIGFLOAT_GET_PREC (divisor), | |
| 1759 XBIGFLOAT_GET_PREC (accum))); | |
| 1760 bigfloat_div (scratch_bigfloat, XBIGFLOAT_DATA (accum), | |
| 1761 XBIGFLOAT_DATA (divisor)); | |
| 1762 accum = make_bigfloat_bf (scratch_bigfloat); | |
| 1763 break; | |
| 1764 #endif | |
| 1765 } | |
| 1766 } | |
| 1767 return Fcanonicalize_number (accum); | |
| 1768 | |
| 1769 divide_by_zero: | |
| 1770 Fsignal (Qarith_error, Qnil); | |
| 1771 return Qnil; /* not (usually) reached */ | |
| 1772 } | |
| 1773 #endif /* HAVE_RATIO */ | |
| 1774 | |
| 428 | 1775 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
|
1776 Return FIRST divided by all the remaining arguments. |
| 428 | 1777 The arguments must be numbers, characters or markers. |
| 1778 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
|
1779 |
|
80cd90837ac5
Add argument information to remaining MANY or UNEVALLED C subrs.
Aidan Kehoe <kehoea@parhasard.net>
parents:
3355
diff
changeset
|
1780 arguments: (FIRST &rest ARGS) |
| 428 | 1781 */ |
| 1782 (int nargs, Lisp_Object *args)) | |
| 1783 { | |
| 1983 | 1784 #ifdef WITH_NUMBER_TYPES |
| 1785 REGISTER int i; | |
| 1786 Lisp_Object accum, divisor; | |
| 1787 | |
| 1788 if (nargs == 1) | |
| 1789 { | |
| 1790 i = 0; | |
| 1791 accum = make_int (1); | |
| 1792 } | |
| 1793 else | |
| 1794 { | |
| 1795 i = 1; | |
| 1796 accum = args[0]; | |
| 1797 } | |
| 1798 for (; i < nargs; i++) | |
| 1799 { | |
| 1800 divisor = args[i]; | |
| 1801 switch (promote_args (&accum, &divisor)) | |
| 1802 { | |
| 1803 case FIXNUM_T: | |
| 1804 if (XREALINT (divisor) == 0) goto divide_by_zero; | |
| 1805 accum = make_integer (XREALINT (accum) / XREALINT (divisor)); | |
| 1806 break; | |
| 1807 #ifdef HAVE_BIGNUM | |
| 1808 case BIGNUM_T: | |
| 1809 if (bignum_sign (XBIGNUM_DATA (divisor)) == 0) goto divide_by_zero; | |
| 1810 bignum_div (scratch_bignum, XBIGNUM_DATA (accum), | |
| 1811 XBIGNUM_DATA (divisor)); | |
| 1812 accum = make_bignum_bg (scratch_bignum); | |
| 1813 break; | |
| 1814 #endif | |
| 1815 #ifdef HAVE_RATIO | |
| 1816 case RATIO_T: | |
| 1817 if (ratio_sign (XRATIO_DATA (divisor)) == 0) goto divide_by_zero; | |
| 1818 ratio_div (scratch_ratio, XRATIO_DATA (accum), | |
| 1819 XRATIO_DATA (divisor)); | |
| 1820 accum = make_ratio_rt (scratch_ratio); | |
| 1821 break; | |
| 1822 #endif | |
| 1823 case FLOAT_T: | |
| 1824 if (XFLOAT_DATA (divisor) == 0.0) goto divide_by_zero; | |
| 1825 accum = make_float (XFLOAT_DATA (accum) / XFLOAT_DATA (divisor)); | |
| 1826 break; | |
| 1827 #ifdef HAVE_BIGFLOAT | |
| 1828 case BIGFLOAT_T: | |
| 1829 if (bigfloat_sign (XBIGFLOAT_DATA (divisor)) == 0) | |
| 1830 goto divide_by_zero; | |
| 1831 bigfloat_set_prec (scratch_bigfloat, | |
| 1832 max (XBIGFLOAT_GET_PREC (divisor), | |
| 1833 XBIGFLOAT_GET_PREC (accum))); | |
| 1834 bigfloat_div (scratch_bigfloat, XBIGFLOAT_DATA (accum), | |
| 1835 XBIGFLOAT_DATA (divisor)); | |
| 1836 accum = make_bigfloat_bf (scratch_bigfloat); | |
| 1837 break; | |
| 1838 #endif | |
| 1839 } | |
| 1840 } | |
| 1841 return Fcanonicalize_number (accum); | |
| 1842 #else /* !WITH_NUMBER_TYPES */ | |
| 428 | 1843 EMACS_INT iaccum; |
| 1844 double daccum; | |
| 1845 Lisp_Object *args_end = args + nargs; | |
| 1846 int_or_double iod; | |
| 1847 | |
| 1848 if (nargs == 1) | |
| 1849 iaccum = 1; | |
| 1850 else | |
| 1851 { | |
| 1852 number_char_or_marker_to_int_or_double (*args++, &iod); | |
| 1853 if (iod.int_p) | |
| 1854 iaccum = iod.c.ival; | |
| 1855 else | |
| 1856 { | |
| 1857 daccum = iod.c.dval; | |
| 1858 goto divide_floats; | |
| 1859 } | |
| 1860 } | |
| 1861 | |
| 1862 while (args < args_end) | |
| 1863 { | |
| 1864 number_char_or_marker_to_int_or_double (*args++, &iod); | |
| 1865 if (iod.int_p) | |
| 1866 { | |
| 1867 if (iod.c.ival == 0) goto divide_by_zero; | |
| 1868 iaccum /= iod.c.ival; | |
| 1869 } | |
| 1870 else | |
| 1871 { | |
| 1872 if (iod.c.dval == 0) goto divide_by_zero; | |
| 1873 daccum = (double) iaccum / iod.c.dval; | |
| 1874 goto divide_floats; | |
| 1875 } | |
| 1876 } | |
| 1877 | |
| 1878 return make_int (iaccum); | |
| 1879 | |
| 1880 divide_floats: | |
| 1881 for (; args < args_end; args++) | |
| 1882 { | |
| 1883 double dval = number_char_or_marker_to_double (*args); | |
| 1884 if (dval == 0) goto divide_by_zero; | |
| 1885 daccum /= dval; | |
| 1886 } | |
| 1887 return make_float (daccum); | |
| 1983 | 1888 #endif /* WITH_NUMBER_TYPES */ |
| 428 | 1889 |
| 1890 divide_by_zero: | |
| 1891 Fsignal (Qarith_error, Qnil); | |
| 801 | 1892 return Qnil; /* not (usually) reached */ |
| 428 | 1893 } |
| 1894 | |
| 1895 DEFUN ("max", Fmax, 1, MANY, 0, /* | |
| 1896 Return largest of all the arguments. | |
| 1983 | 1897 All arguments must be real numbers, characters or markers. |
| 428 | 1898 The value is always a number; markers and characters are converted |
| 1899 to numbers. | |
|
4693
80cd90837ac5
Add argument information to remaining MANY or UNEVALLED C subrs.
Aidan Kehoe <kehoea@parhasard.net>
parents:
3355
diff
changeset
|
1900 |
|
80cd90837ac5
Add argument information to remaining MANY or UNEVALLED C subrs.
Aidan Kehoe <kehoea@parhasard.net>
parents:
3355
diff
changeset
|
1901 arguments: (FIRST &rest ARGS) |
| 428 | 1902 */ |
| 1903 (int nargs, Lisp_Object *args)) | |
| 1904 { | |
| 1983 | 1905 #ifdef WITH_NUMBER_TYPES |
| 1906 REGISTER int i, maxindex = 0; | |
| 1907 Lisp_Object comp1, comp2; | |
| 1908 | |
| 1909 while (!(CHARP (args[0]) || MARKERP (args[0]) || REALP (args[0]))) | |
| 1910 args[0] = wrong_type_argument (Qnumber_char_or_marker_p, args[0]); | |
| 1911 if (CHARP (args[0])) | |
| 1912 args[0] = make_int (XCHAR (args[0])); | |
| 1913 else if (MARKERP (args[0])) | |
| 1914 args[0] = make_int (marker_position (args[0])); | |
| 1915 for (i = 1; i < nargs; i++) | |
| 1916 { | |
| 1917 comp1 = args[maxindex]; | |
| 1918 comp2 = args[i]; | |
| 1919 switch (promote_args (&comp1, &comp2)) | |
| 1920 { | |
| 1921 case FIXNUM_T: | |
| 1922 if (XREALINT (comp1) < XREALINT (comp2)) | |
| 1923 maxindex = i; | |
| 1924 break; | |
| 1925 #ifdef HAVE_BIGNUM | |
| 1926 case BIGNUM_T: | |
| 1927 if (bignum_lt (XBIGNUM_DATA (comp1), XBIGNUM_DATA (comp2))) | |
| 1928 maxindex = i; | |
| 1929 break; | |
| 1930 #endif | |
| 1931 #ifdef HAVE_RATIO | |
| 1932 case RATIO_T: | |
| 1933 if (ratio_lt (XRATIO_DATA (comp1), XRATIO_DATA (comp2))) | |
| 1934 maxindex = i; | |
| 1935 break; | |
| 1936 #endif | |
| 1937 case FLOAT_T: | |
| 1938 if (XFLOAT_DATA (comp1) < XFLOAT_DATA (comp2)) | |
| 1939 maxindex = i; | |
| 1940 break; | |
| 1941 #ifdef HAVE_BIGFLOAT | |
| 1942 case BIGFLOAT_T: | |
| 1943 if (bigfloat_lt (XBIGFLOAT_DATA (comp1), XBIGFLOAT_DATA (comp2))) | |
| 1944 maxindex = i; | |
| 1945 break; | |
| 1946 #endif | |
| 1947 } | |
| 1948 } | |
| 1949 return args[maxindex]; | |
| 1950 #else /* !WITH_NUMBER_TYPES */ | |
| 428 | 1951 EMACS_INT imax; |
| 1952 double dmax; | |
| 1953 Lisp_Object *args_end = args + nargs; | |
| 1954 int_or_double iod; | |
| 1955 | |
| 1956 number_char_or_marker_to_int_or_double (*args++, &iod); | |
| 1957 if (iod.int_p) | |
| 1958 imax = iod.c.ival; | |
| 1959 else | |
| 1960 { | |
| 1961 dmax = iod.c.dval; | |
| 1962 goto max_floats; | |
| 1963 } | |
| 1964 | |
| 1965 while (args < args_end) | |
| 1966 { | |
| 1967 number_char_or_marker_to_int_or_double (*args++, &iod); | |
| 1968 if (iod.int_p) | |
| 1969 { | |
| 1970 if (imax < iod.c.ival) imax = iod.c.ival; | |
| 1971 } | |
| 1972 else | |
| 1973 { | |
| 1974 dmax = (double) imax; | |
| 1975 if (dmax < iod.c.dval) dmax = iod.c.dval; | |
| 1976 goto max_floats; | |
| 1977 } | |
| 1978 } | |
| 1979 | |
| 1980 return make_int (imax); | |
| 1981 | |
| 1982 max_floats: | |
| 1983 while (args < args_end) | |
| 1984 { | |
| 1985 double dval = number_char_or_marker_to_double (*args++); | |
| 1986 if (dmax < dval) dmax = dval; | |
| 1987 } | |
| 1988 return make_float (dmax); | |
| 1983 | 1989 #endif /* WITH_NUMBER_TYPES */ |
| 428 | 1990 } |
| 1991 | |
| 1992 DEFUN ("min", Fmin, 1, MANY, 0, /* | |
| 1993 Return smallest of all the arguments. | |
| 1994 All arguments must be numbers, characters or markers. | |
| 1995 The value is always a number; markers and characters are converted | |
| 1996 to numbers. | |
|
4693
80cd90837ac5
Add argument information to remaining MANY or UNEVALLED C subrs.
Aidan Kehoe <kehoea@parhasard.net>
parents:
3355
diff
changeset
|
1997 |
|
80cd90837ac5
Add argument information to remaining MANY or UNEVALLED C subrs.
Aidan Kehoe <kehoea@parhasard.net>
parents:
3355
diff
changeset
|
1998 arguments: (FIRST &rest ARGS) |
| 428 | 1999 */ |
| 2000 (int nargs, Lisp_Object *args)) | |
| 2001 { | |
| 1983 | 2002 #ifdef WITH_NUMBER_TYPES |
| 2003 REGISTER int i, minindex = 0; | |
| 2004 Lisp_Object comp1, comp2; | |
| 2005 | |
| 2006 while (!(CHARP (args[0]) || MARKERP (args[0]) || REALP (args[0]))) | |
| 2007 args[0] = wrong_type_argument (Qnumber_char_or_marker_p, args[0]); | |
| 2008 if (CHARP (args[0])) | |
| 2009 args[0] = make_int (XCHAR (args[0])); | |
| 2010 else if (MARKERP (args[0])) | |
| 2011 args[0] = make_int (marker_position (args[0])); | |
| 2012 for (i = 1; i < nargs; i++) | |
| 2013 { | |
| 2014 comp1 = args[minindex]; | |
| 2015 comp2 = args[i]; | |
| 2016 switch (promote_args (&comp1, &comp2)) | |
| 2017 { | |
| 2018 case FIXNUM_T: | |
| 2019 if (XREALINT (comp1) > XREALINT (comp2)) | |
| 2020 minindex = i; | |
| 2021 break; | |
| 2022 #ifdef HAVE_BIGNUM | |
| 2023 case BIGNUM_T: | |
| 2024 if (bignum_gt (XBIGNUM_DATA (comp1), XBIGNUM_DATA (comp2))) | |
| 2025 minindex = i; | |
| 2026 break; | |
| 2027 #endif | |
| 2028 #ifdef HAVE_RATIO | |
| 2029 case RATIO_T: | |
| 2030 if (ratio_gt (XRATIO_DATA (comp1), XRATIO_DATA (comp2))) | |
| 2031 minindex = i; | |
| 2032 break; | |
| 2033 #endif | |
| 2034 case FLOAT_T: | |
| 2035 if (XFLOAT_DATA (comp1) > XFLOAT_DATA (comp2)) | |
| 2036 minindex = i; | |
| 2037 break; | |
| 2038 #ifdef HAVE_BIGFLOAT | |
| 2039 case BIGFLOAT_T: | |
| 2040 if (bigfloat_gt (XBIGFLOAT_DATA (comp1), XBIGFLOAT_DATA (comp2))) | |
| 2041 minindex = i; | |
| 2042 break; | |
| 2043 #endif | |
| 2044 } | |
| 2045 } | |
| 2046 return args[minindex]; | |
| 2047 #else /* !WITH_NUMBER_TYPES */ | |
| 428 | 2048 EMACS_INT imin; |
| 2049 double dmin; | |
| 2050 Lisp_Object *args_end = args + nargs; | |
| 2051 int_or_double iod; | |
| 2052 | |
| 2053 number_char_or_marker_to_int_or_double (*args++, &iod); | |
| 2054 if (iod.int_p) | |
| 2055 imin = iod.c.ival; | |
| 2056 else | |
| 2057 { | |
| 2058 dmin = iod.c.dval; | |
| 2059 goto min_floats; | |
| 2060 } | |
| 2061 | |
| 2062 while (args < args_end) | |
| 2063 { | |
| 2064 number_char_or_marker_to_int_or_double (*args++, &iod); | |
| 2065 if (iod.int_p) | |
| 2066 { | |
| 2067 if (imin > iod.c.ival) imin = iod.c.ival; | |
| 2068 } | |
| 2069 else | |
| 2070 { | |
| 2071 dmin = (double) imin; | |
| 2072 if (dmin > iod.c.dval) dmin = iod.c.dval; | |
| 2073 goto min_floats; | |
| 2074 } | |
| 2075 } | |
| 2076 | |
| 2077 return make_int (imin); | |
| 2078 | |
| 2079 min_floats: | |
| 2080 while (args < args_end) | |
| 2081 { | |
| 2082 double dval = number_char_or_marker_to_double (*args++); | |
| 2083 if (dmin > dval) dmin = dval; | |
| 2084 } | |
| 2085 return make_float (dmin); | |
| 1983 | 2086 #endif /* WITH_NUMBER_TYPES */ |
| 428 | 2087 } |
| 2088 | |
| 2089 DEFUN ("logand", Flogand, 0, MANY, 0, /* | |
| 2090 Return bitwise-and of all the arguments. | |
| 2091 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
|
2092 |
|
80cd90837ac5
Add argument information to remaining MANY or UNEVALLED C subrs.
Aidan Kehoe <kehoea@parhasard.net>
parents:
3355
diff
changeset
|
2093 arguments: (&rest ARGS) |
| 428 | 2094 */ |
| 2095 (int nargs, Lisp_Object *args)) | |
| 2096 { | |
| 1983 | 2097 #ifdef HAVE_BIGNUM |
| 2098 REGISTER int i; | |
| 2099 Lisp_Object result, other; | |
| 2100 | |
| 2101 if (nargs == 0) | |
| 2102 return make_int (~0); | |
| 2103 | |
| 2104 while (!(CHARP (args[0]) || MARKERP (args[0]) || INTEGERP (args[0]))) | |
| 2105 args[0] = wrong_type_argument (Qnumber_char_or_marker_p, args[0]); | |
| 2106 | |
| 2107 result = args[0]; | |
| 2108 if (CHARP (result)) | |
| 2109 result = make_int (XCHAR (result)); | |
| 2110 else if (MARKERP (result)) | |
| 2111 result = make_int (marker_position (result)); | |
| 2112 for (i = 1; i < nargs; i++) | |
| 2113 { | |
| 2114 while (!(CHARP (args[i]) || MARKERP (args[i]) || INTEGERP (args[i]))) | |
| 2115 args[i] = wrong_type_argument (Qnumber_char_or_marker_p, args[i]); | |
| 2116 other = args[i]; | |
| 1995 | 2117 switch (promote_args (&result, &other)) |
| 1983 | 2118 { |
| 2119 case FIXNUM_T: | |
| 1995 | 2120 result = make_int (XREALINT (result) & XREALINT (other)); |
| 1983 | 2121 break; |
| 2122 case BIGNUM_T: | |
| 2123 bignum_and (scratch_bignum, XBIGNUM_DATA (result), | |
| 2124 XBIGNUM_DATA (other)); | |
| 2125 result = make_bignum_bg (scratch_bignum); | |
| 2126 break; | |
| 2127 } | |
| 2128 } | |
| 2129 return Fcanonicalize_number (result); | |
| 2130 #else /* !HAVE_BIGNUM */ | |
| 428 | 2131 EMACS_INT bits = ~0; |
| 2132 Lisp_Object *args_end = args + nargs; | |
| 2133 | |
| 2134 while (args < args_end) | |
| 2135 bits &= integer_char_or_marker_to_int (*args++); | |
| 2136 | |
| 2137 return make_int (bits); | |
| 1983 | 2138 #endif /* HAVE_BIGNUM */ |
| 428 | 2139 } |
| 2140 | |
| 2141 DEFUN ("logior", Flogior, 0, MANY, 0, /* | |
| 2142 Return bitwise-or of all the arguments. | |
| 2143 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
|
2144 |
|
80cd90837ac5
Add argument information to remaining MANY or UNEVALLED C subrs.
Aidan Kehoe <kehoea@parhasard.net>
parents:
3355
diff
changeset
|
2145 arguments: (&rest ARGS) |
| 428 | 2146 */ |
| 2147 (int nargs, Lisp_Object *args)) | |
| 2148 { | |
| 1983 | 2149 #ifdef HAVE_BIGNUM |
| 2150 REGISTER int i; | |
| 2151 Lisp_Object result, other; | |
| 2152 | |
| 2153 if (nargs == 0) | |
| 2154 return make_int (0); | |
| 2155 | |
| 2156 while (!(CHARP (args[0]) || MARKERP (args[0]) || INTEGERP (args[0]))) | |
| 2157 args[0] = wrong_type_argument (Qnumber_char_or_marker_p, args[0]); | |
| 2158 | |
| 2159 result = args[0]; | |
| 2160 if (CHARP (result)) | |
| 2161 result = make_int (XCHAR (result)); | |
| 2162 else if (MARKERP (result)) | |
| 2163 result = make_int (marker_position (result)); | |
| 2164 for (i = 1; i < nargs; i++) | |
| 2165 { | |
| 2166 while (!(CHARP (args[i]) || MARKERP (args[i]) || INTEGERP (args[i]))) | |
| 2167 args[i] = wrong_type_argument (Qnumber_char_or_marker_p, args[i]); | |
| 2168 other = args[i]; | |
| 2169 switch (promote_args (&result, &other)) | |
| 2170 { | |
| 2171 case FIXNUM_T: | |
| 1992 | 2172 result = make_int (XREALINT (result) | XREALINT (other)); |
| 1983 | 2173 break; |
| 2174 case BIGNUM_T: | |
| 2175 bignum_ior (scratch_bignum, XBIGNUM_DATA (result), | |
| 2176 XBIGNUM_DATA (other)); | |
| 2177 result = make_bignum_bg (scratch_bignum); | |
| 2178 break; | |
| 2179 } | |
| 2180 } | |
| 2181 return Fcanonicalize_number (result); | |
| 2182 #else /* !HAVE_BIGNUM */ | |
| 428 | 2183 EMACS_INT bits = 0; |
| 2184 Lisp_Object *args_end = args + nargs; | |
| 2185 | |
| 2186 while (args < args_end) | |
| 2187 bits |= integer_char_or_marker_to_int (*args++); | |
| 2188 | |
| 2189 return make_int (bits); | |
| 1983 | 2190 #endif /* HAVE_BIGNUM */ |
| 428 | 2191 } |
| 2192 | |
| 2193 DEFUN ("logxor", Flogxor, 0, MANY, 0, /* | |
| 2194 Return bitwise-exclusive-or of all the arguments. | |
| 2195 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
|
2196 |
|
80cd90837ac5
Add argument information to remaining MANY or UNEVALLED C subrs.
Aidan Kehoe <kehoea@parhasard.net>
parents:
3355
diff
changeset
|
2197 arguments: (&rest ARGS) |
| 428 | 2198 */ |
| 2199 (int nargs, Lisp_Object *args)) | |
| 2200 { | |
| 1983 | 2201 #ifdef HAVE_BIGNUM |
| 2202 REGISTER int i; | |
| 2203 Lisp_Object result, other; | |
| 2204 | |
| 2205 if (nargs == 0) | |
| 2206 return make_int (0); | |
| 2207 | |
| 2208 while (!(CHARP (args[0]) || MARKERP (args[0]) || INTEGERP (args[0]))) | |
| 2209 args[0] = wrong_type_argument (Qnumber_char_or_marker_p, args[0]); | |
| 2210 | |
| 2211 result = args[0]; | |
| 2212 if (CHARP (result)) | |
| 2213 result = make_int (XCHAR (result)); | |
| 2214 else if (MARKERP (result)) | |
| 2215 result = make_int (marker_position (result)); | |
| 2216 for (i = 1; i < nargs; i++) | |
| 2217 { | |
| 2218 while (!(CHARP (args[i]) || MARKERP (args[i]) || INTEGERP (args[i]))) | |
| 2219 args[i] = wrong_type_argument (Qnumber_char_or_marker_p, args[i]); | |
| 2220 other = args[i]; | |
| 2221 if (promote_args (&result, &other) == FIXNUM_T) | |
| 2222 { | |
| 2223 result = make_int (XREALINT (result) ^ XREALINT (other)); | |
| 2224 } | |
| 2225 else | |
| 2226 { | |
| 2227 bignum_xor (scratch_bignum, XBIGNUM_DATA (result), | |
| 2228 XBIGNUM_DATA (other)); | |
| 2229 result = make_bignum_bg (scratch_bignum); | |
| 2230 } | |
| 2231 } | |
| 2232 return Fcanonicalize_number (result); | |
| 2233 #else /* !HAVE_BIGNUM */ | |
| 428 | 2234 EMACS_INT bits = 0; |
| 2235 Lisp_Object *args_end = args + nargs; | |
| 2236 | |
| 2237 while (args < args_end) | |
| 2238 bits ^= integer_char_or_marker_to_int (*args++); | |
| 2239 | |
| 2240 return make_int (bits); | |
| 1983 | 2241 #endif /* !HAVE_BIGNUM */ |
| 428 | 2242 } |
| 2243 | |
| 2244 DEFUN ("lognot", Flognot, 1, 1, 0, /* | |
| 2245 Return the bitwise complement of NUMBER. | |
| 2246 NUMBER may be an integer, marker or character converted to integer. | |
| 2247 */ | |
| 2248 (number)) | |
| 2249 { | |
| 1983 | 2250 #ifdef HAVE_BIGNUM |
| 2251 if (BIGNUMP (number)) | |
| 2252 { | |
| 2253 bignum_not (scratch_bignum, XBIGNUM_DATA (number)); | |
| 2254 return make_bignum_bg (scratch_bignum); | |
| 2255 } | |
| 2256 #endif /* HAVE_BIGNUM */ | |
| 428 | 2257 return make_int (~ integer_char_or_marker_to_int (number)); |
| 2258 } | |
| 2259 | |
| 2260 DEFUN ("%", Frem, 2, 2, 0, /* | |
| 2261 Return remainder of first arg divided by second. | |
| 2262 Both must be integers, characters or markers. | |
| 2263 */ | |
| 444 | 2264 (number1, number2)) |
| 428 | 2265 { |
| 1983 | 2266 #ifdef HAVE_BIGNUM |
| 2267 while (!(CHARP (number1) || MARKERP (number1) || INTEGERP (number1))) | |
| 2268 number1 = wrong_type_argument (Qnumber_char_or_marker_p, number1); | |
| 2269 while (!(CHARP (number2) || MARKERP (number2) || INTEGERP (number2))) | |
| 2270 number2 = wrong_type_argument (Qnumber_char_or_marker_p, number2); | |
| 2271 | |
| 2272 if (promote_args (&number1, &number2) == FIXNUM_T) | |
| 2273 { | |
| 2274 if (XREALINT (number2) == 0) | |
| 2275 Fsignal (Qarith_error, Qnil); | |
| 2276 return make_int (XREALINT (number1) % XREALINT (number2)); | |
| 2277 } | |
| 2278 else | |
| 2279 { | |
| 2280 if (bignum_sign (XBIGNUM_DATA (number2)) == 0) | |
| 2281 Fsignal (Qarith_error, Qnil); | |
| 2282 bignum_mod (scratch_bignum, XBIGNUM_DATA (number1), | |
| 2283 XBIGNUM_DATA (number2)); | |
| 2284 return Fcanonicalize_number (make_bignum_bg (scratch_bignum)); | |
| 2285 } | |
| 2286 #else /* !HAVE_BIGNUM */ | |
| 444 | 2287 EMACS_INT ival1 = integer_char_or_marker_to_int (number1); |
| 2288 EMACS_INT ival2 = integer_char_or_marker_to_int (number2); | |
| 428 | 2289 |
| 2290 if (ival2 == 0) | |
| 2291 Fsignal (Qarith_error, Qnil); | |
| 2292 | |
| 2293 return make_int (ival1 % ival2); | |
| 1983 | 2294 #endif /* HAVE_BIGNUM */ |
| 428 | 2295 } |
| 2296 | |
| 2297 /* Note, ANSI *requires* the presence of the fmod() library routine. | |
| 2298 If your system doesn't have it, complain to your vendor, because | |
| 2299 that is a bug. */ | |
| 2300 | |
| 2301 #ifndef HAVE_FMOD | |
| 2302 double | |
| 2303 fmod (double f1, double f2) | |
| 2304 { | |
| 2305 if (f2 < 0.0) | |
| 2306 f2 = -f2; | |
| 2307 return f1 - f2 * floor (f1/f2); | |
| 2308 } | |
| 2309 #endif /* ! HAVE_FMOD */ | |
| 2310 | |
| 2311 | |
| 2312 DEFUN ("mod", Fmod, 2, 2, 0, /* | |
| 2313 Return X modulo Y. | |
| 2314 The result falls between zero (inclusive) and Y (exclusive). | |
| 2315 Both X and Y must be numbers, characters or markers. | |
| 2316 If either argument is a float, a float will be returned. | |
| 2317 */ | |
| 2318 (x, y)) | |
| 2319 { | |
| 1983 | 2320 #ifdef WITH_NUMBER_TYPES |
| 2321 while (!(CHARP (x) || MARKERP (x) || REALP (x))) | |
| 2322 x = wrong_type_argument (Qnumber_char_or_marker_p, x); | |
| 2323 while (!(CHARP (y) || MARKERP (y) || REALP (y))) | |
| 2324 y = wrong_type_argument (Qnumber_char_or_marker_p, y); | |
| 2325 switch (promote_args (&x, &y)) | |
| 2326 { | |
| 2327 case FIXNUM_T: | |
| 2328 { | |
| 2329 EMACS_INT ival; | |
| 2330 if (XREALINT (y) == 0) goto divide_by_zero; | |
| 2331 ival = XREALINT (x) % XREALINT (y); | |
| 2332 /* If the "remainder" comes out with the wrong sign, fix it. */ | |
| 2333 if (XREALINT (y) < 0 ? ival > 0 : ival < 0) | |
| 2334 ival += XREALINT (y); | |
| 2335 return make_int (ival); | |
| 2336 } | |
| 2337 #ifdef HAVE_BIGNUM | |
| 2338 case BIGNUM_T: | |
| 2339 if (bignum_sign (XBIGNUM_DATA (y)) == 0) goto divide_by_zero; | |
| 2340 bignum_mod (scratch_bignum, XBIGNUM_DATA (x), XBIGNUM_DATA (y)); | |
| 2341 return Fcanonicalize_number (make_bignum_bg (scratch_bignum)); | |
| 2342 #endif | |
| 2343 #ifdef HAVE_RATIO | |
| 2344 case RATIO_T: | |
| 2345 if (ratio_sign (XRATIO_DATA (y)) == 0) goto divide_by_zero; | |
| 2346 ratio_div (scratch_ratio, XRATIO_DATA (x), XRATIO_DATA (y)); | |
| 2347 bignum_div (scratch_bignum, ratio_numerator (scratch_ratio), | |
| 2348 ratio_denominator (scratch_ratio)); | |
| 2349 ratio_set_bignum (scratch_ratio, scratch_bignum); | |
| 2350 ratio_mul (scratch_ratio, scratch_ratio, XRATIO_DATA (y)); | |
| 2351 ratio_sub (scratch_ratio, XRATIO_DATA (x), scratch_ratio); | |
| 2352 return Fcanonicalize_number (make_ratio_rt (scratch_ratio)); | |
| 2353 #endif | |
| 2354 case FLOAT_T: | |
| 2355 { | |
| 2356 double dval; | |
| 2357 if (XFLOAT_DATA (y) == 0.0) goto divide_by_zero; | |
| 2358 dval = fmod (XFLOAT_DATA (x), XFLOAT_DATA (y)); | |
| 2359 /* If the "remainder" comes out with the wrong sign, fix it. */ | |
| 2360 if (XFLOAT_DATA (y) < 0 ? dval > 0 : dval < 0) | |
| 2361 dval += XFLOAT_DATA (y); | |
| 2362 return make_float (dval); | |
| 2363 } | |
| 2364 #ifdef HAVE_BIGFLOAT | |
| 2365 case BIGFLOAT_T: | |
| 2366 bigfloat_set_prec (scratch_bigfloat, | |
| 2367 max (XBIGFLOAT_GET_PREC (x), XBIGFLOAT_GET_PREC (y))); | |
| 2368 bigfloat_div (scratch_bigfloat, XBIGFLOAT_DATA (x), XBIGFLOAT_DATA (y)); | |
| 2369 bigfloat_trunc (scratch_bigfloat, scratch_bigfloat); | |
| 2370 bigfloat_mul (scratch_bigfloat, scratch_bigfloat, XBIGFLOAT_DATA (y)); | |
| 2371 bigfloat_sub (scratch_bigfloat, XBIGFLOAT_DATA (x), scratch_bigfloat); | |
| 2372 return make_bigfloat_bf (scratch_bigfloat); | |
| 2373 #endif | |
| 2374 } | |
| 2375 #else /* !WITH_NUMBER_TYPES */ | |
| 428 | 2376 int_or_double iod1, iod2; |
| 2377 number_char_or_marker_to_int_or_double (x, &iod1); | |
| 2378 number_char_or_marker_to_int_or_double (y, &iod2); | |
| 2379 | |
| 2380 if (!iod1.int_p || !iod2.int_p) | |
| 2381 { | |
| 2382 double dval1 = iod1.int_p ? (double) iod1.c.ival : iod1.c.dval; | |
| 2383 double dval2 = iod2.int_p ? (double) iod2.c.ival : iod2.c.dval; | |
| 2384 if (dval2 == 0) goto divide_by_zero; | |
| 2385 dval1 = fmod (dval1, dval2); | |
| 2386 | |
| 2387 /* If the "remainder" comes out with the wrong sign, fix it. */ | |
| 2388 if (dval2 < 0 ? dval1 > 0 : dval1 < 0) | |
| 2389 dval1 += dval2; | |
| 2390 | |
| 2391 return make_float (dval1); | |
| 2392 } | |
| 1104 | 2393 |
| 428 | 2394 { |
| 2395 EMACS_INT ival; | |
| 2396 if (iod2.c.ival == 0) goto divide_by_zero; | |
| 2397 | |
| 2398 ival = iod1.c.ival % iod2.c.ival; | |
| 2399 | |
| 2400 /* If the "remainder" comes out with the wrong sign, fix it. */ | |
| 2401 if (iod2.c.ival < 0 ? ival > 0 : ival < 0) | |
| 2402 ival += iod2.c.ival; | |
| 2403 | |
| 2404 return make_int (ival); | |
| 2405 } | |
| 1983 | 2406 #endif /* WITH_NUMBER_TYPES */ |
| 428 | 2407 |
| 2408 divide_by_zero: | |
| 2409 Fsignal (Qarith_error, Qnil); | |
| 801 | 2410 return Qnil; /* not (usually) reached */ |
| 428 | 2411 } |
| 2412 | |
| 2413 DEFUN ("ash", Fash, 2, 2, 0, /* | |
| 2414 Return VALUE with its bits shifted left by COUNT. | |
| 2415 If COUNT is negative, shifting is actually to the right. | |
| 2416 In this case, the sign bit is duplicated. | |
| 1983 | 2417 This function cannot be applied to bignums, as there is no leftmost sign bit |
| 2418 to be duplicated. Use `lsh' instead. | |
| 428 | 2419 */ |
| 2420 (value, count)) | |
| 2421 { | |
| 2422 CHECK_INT_COERCE_CHAR (value); | |
| 2423 CONCHECK_INT (count); | |
| 2424 | |
| 2425 return make_int (XINT (count) > 0 ? | |
| 2426 XINT (value) << XINT (count) : | |
| 2427 XINT (value) >> -XINT (count)); | |
| 2428 } | |
| 2429 | |
| 2430 DEFUN ("lsh", Flsh, 2, 2, 0, /* | |
| 2431 Return VALUE with its bits shifted left by COUNT. | |
| 2432 If COUNT is negative, shifting is actually to the right. | |
| 2433 In this case, zeros are shifted in on the left. | |
| 2434 */ | |
| 2435 (value, count)) | |
| 2436 { | |
| 1983 | 2437 #ifdef HAVE_BIGNUM |
| 2438 while (!(CHARP (value) || MARKERP (value) || INTEGERP (value))) | |
| 2439 wrong_type_argument (Qnumber_char_or_marker_p, value); | |
| 2440 CONCHECK_INTEGER (count); | |
| 2441 | |
| 2442 if (promote_args (&value, &count) == FIXNUM_T) | |
| 2443 { | |
| 2444 if (XREALINT (count) <= 0) | |
| 2445 return make_int (XREALINT (value) >> -XREALINT (count)); | |
| 2446 /* Use bignums to avoid overflow */ | |
| 2447 bignum_set_long (scratch_bignum2, XREALINT (value)); | |
| 2448 bignum_lshift (scratch_bignum, scratch_bignum2, XREALINT (count)); | |
| 2449 return Fcanonicalize_number (make_bignum_bg (scratch_bignum)); | |
| 2450 } | |
| 2451 else | |
| 2452 { | |
| 2453 if (bignum_sign (XBIGNUM_DATA (count)) <= 0) | |
| 2454 { | |
| 2455 bignum_neg (scratch_bignum, XBIGNUM_DATA (count)); | |
| 2456 if (!bignum_fits_ulong_p (scratch_bignum)) | |
| 2457 args_out_of_range (Qnumber_char_or_marker_p, count); | |
| 2458 bignum_rshift (scratch_bignum2, XBIGNUM_DATA (value), | |
| 2459 bignum_to_ulong (scratch_bignum)); | |
| 2460 } | |
| 2461 else | |
| 2462 { | |
| 2463 if (!bignum_fits_ulong_p (XBIGNUM_DATA (count))) | |
| 2464 args_out_of_range (Qnumber_char_or_marker_p, count); | |
| 2465 bignum_lshift (scratch_bignum2, XBIGNUM_DATA (value), | |
| 2466 bignum_to_ulong (XBIGNUM_DATA (count))); | |
| 2467 } | |
| 2468 return Fcanonicalize_number (make_bignum_bg (scratch_bignum2)); | |
| 2469 } | |
| 2470 #else /* !HAVE_BIGNUM */ | |
| 428 | 2471 CHECK_INT_COERCE_CHAR (value); |
| 2472 CONCHECK_INT (count); | |
| 2473 | |
| 2474 return make_int (XINT (count) > 0 ? | |
| 2475 XUINT (value) << XINT (count) : | |
| 2476 XUINT (value) >> -XINT (count)); | |
| 1983 | 2477 #endif /* HAVE_BIGNUM */ |
| 428 | 2478 } |
| 2479 | |
| 2480 DEFUN ("1+", Fadd1, 1, 1, 0, /* | |
| 2481 Return NUMBER plus one. NUMBER may be a number, character or marker. | |
| 2482 Markers and characters are converted to integers. | |
| 2483 */ | |
| 2484 (number)) | |
| 2485 { | |
| 2486 retry: | |
| 2487 | |
| 1983 | 2488 if (INTP (number)) return make_integer (XINT (number) + 1); |
| 2489 if (CHARP (number)) return make_integer (XCHAR (number) + 1); | |
| 2490 if (MARKERP (number)) return make_integer (marker_position (number) + 1); | |
| 428 | 2491 if (FLOATP (number)) return make_float (XFLOAT_DATA (number) + 1.0); |
| 1983 | 2492 #ifdef HAVE_BIGNUM |
| 2493 if (BIGNUMP (number)) | |
| 2494 { | |
| 2495 bignum_set_long (scratch_bignum, 1L); | |
| 2496 bignum_add (scratch_bignum2, XBIGNUM_DATA (number), scratch_bignum); | |
| 2497 return Fcanonicalize_number (make_bignum_bg (scratch_bignum2)); | |
| 2498 } | |
| 2499 #endif | |
| 2500 #ifdef HAVE_RATIO | |
| 2501 if (RATIOP (number)) | |
| 2502 { | |
| 2503 ratio_set_long (scratch_ratio, 1L); | |
| 2504 ratio_add (scratch_ratio, XRATIO_DATA (number), scratch_ratio); | |
| 2505 /* No need to canonicalize after adding 1 */ | |
| 2506 return make_ratio_rt (scratch_ratio); | |
| 2507 } | |
| 2508 #endif | |
| 2509 #ifdef HAVE_BIGFLOAT | |
| 2510 if (BIGFLOATP (number)) | |
| 2511 { | |
| 2512 bigfloat_set_prec (scratch_bigfloat, XBIGFLOAT_GET_PREC (number)); | |
| 2513 bigfloat_set_long (scratch_bigfloat, 1L); | |
| 2514 bigfloat_add (scratch_bigfloat, XBIGFLOAT_DATA (number), | |
| 2515 scratch_bigfloat); | |
| 2516 return make_bigfloat_bf (scratch_bigfloat); | |
| 2517 } | |
| 2518 #endif | |
| 428 | 2519 |
| 2520 number = wrong_type_argument (Qnumber_char_or_marker_p, number); | |
| 2521 goto retry; | |
| 2522 } | |
| 2523 | |
| 2524 DEFUN ("1-", Fsub1, 1, 1, 0, /* | |
| 2525 Return NUMBER minus one. NUMBER may be a number, character or marker. | |
| 2526 Markers and characters are converted to integers. | |
| 2527 */ | |
| 2528 (number)) | |
| 2529 { | |
| 2530 retry: | |
| 2531 | |
| 1983 | 2532 if (INTP (number)) return make_integer (XINT (number) - 1); |
| 2533 if (CHARP (number)) return make_integer (XCHAR (number) - 1); | |
| 2534 if (MARKERP (number)) return make_integer (marker_position (number) - 1); | |
| 428 | 2535 if (FLOATP (number)) return make_float (XFLOAT_DATA (number) - 1.0); |
| 1983 | 2536 #ifdef HAVE_BIGNUM |
| 2537 if (BIGNUMP (number)) | |
| 2538 { | |
| 2539 bignum_set_long (scratch_bignum, 1L); | |
| 2540 bignum_sub (scratch_bignum2, XBIGNUM_DATA (number), scratch_bignum); | |
| 2541 return Fcanonicalize_number (make_bignum_bg (scratch_bignum2)); | |
| 2542 } | |
| 2543 #endif | |
| 2544 #ifdef HAVE_RATIO | |
| 2545 if (RATIOP (number)) | |
| 2546 { | |
| 2547 ratio_set_long (scratch_ratio, 1L); | |
| 2548 ratio_sub (scratch_ratio, XRATIO_DATA (number), scratch_ratio); | |
| 2549 /* No need to canonicalize after subtracting 1 */ | |
| 2550 return make_ratio_rt (scratch_ratio); | |
| 2551 } | |
| 2552 #endif | |
| 2553 #ifdef HAVE_BIGFLOAT | |
| 2554 if (BIGFLOATP (number)) | |
| 2555 { | |
| 2556 bigfloat_set_prec (scratch_bigfloat, XBIGFLOAT_GET_PREC (number)); | |
| 2557 bigfloat_set_long (scratch_bigfloat, 1L); | |
| 2558 bigfloat_sub (scratch_bigfloat, XBIGFLOAT_DATA (number), | |
| 2559 scratch_bigfloat); | |
| 2560 return make_bigfloat_bf (scratch_bigfloat); | |
| 2561 } | |
| 2562 #endif | |
| 428 | 2563 |
| 2564 number = wrong_type_argument (Qnumber_char_or_marker_p, number); | |
| 2565 goto retry; | |
| 2566 } | |
| 2567 | |
| 2568 | |
| 2569 /************************************************************************/ | |
| 2570 /* weak lists */ | |
| 2571 /************************************************************************/ | |
| 2572 | |
| 2573 /* A weak list is like a normal list except that elements automatically | |
| 2574 disappear when no longer in use, i.e. when no longer GC-protected. | |
| 2575 The basic idea is that we don't mark the elements during GC, but | |
| 2576 wait for them to be marked elsewhere. If they're not marked, we | |
| 2577 remove them. This is analogous to weak hash tables; see the explanation | |
| 2578 there for more info. */ | |
| 2579 | |
| 2580 static Lisp_Object Vall_weak_lists; /* Gemarke es nicht!!! */ | |
| 2581 | |
| 2582 static Lisp_Object encode_weak_list_type (enum weak_list_type type); | |
| 2583 | |
| 2584 static Lisp_Object | |
| 2286 | 2585 mark_weak_list (Lisp_Object UNUSED (obj)) |
| 428 | 2586 { |
| 2587 return Qnil; /* nichts ist gemarkt */ | |
| 2588 } | |
| 2589 | |
| 2590 static void | |
| 2286 | 2591 print_weak_list (Lisp_Object obj, Lisp_Object printcharfun, |
| 2592 int UNUSED (escapeflag)) | |
| 428 | 2593 { |
| 2594 if (print_readably) | |
| 4846 | 2595 printing_unreadable_lcrecord (obj, 0); |
| 428 | 2596 |
| 800 | 2597 write_fmt_string_lisp (printcharfun, "#<weak-list %s %S>", 2, |
| 2598 encode_weak_list_type (XWEAK_LIST (obj)->type), | |
| 2599 XWEAK_LIST (obj)->list); | |
| 428 | 2600 } |
| 2601 | |
| 2602 static int | |
| 2603 weak_list_equal (Lisp_Object obj1, Lisp_Object obj2, int depth) | |
| 2604 { | |
| 2605 struct weak_list *w1 = XWEAK_LIST (obj1); | |
| 2606 struct weak_list *w2 = XWEAK_LIST (obj2); | |
| 2607 | |
| 2608 return ((w1->type == w2->type) && | |
| 2609 internal_equal (w1->list, w2->list, depth + 1)); | |
| 2610 } | |
| 2611 | |
| 665 | 2612 static Hashcode |
| 428 | 2613 weak_list_hash (Lisp_Object obj, int depth) |
| 2614 { | |
| 2615 struct weak_list *w = XWEAK_LIST (obj); | |
| 2616 | |
| 665 | 2617 return HASH2 ((Hashcode) w->type, |
| 428 | 2618 internal_hash (w->list, depth + 1)); |
| 2619 } | |
| 2620 | |
| 2621 Lisp_Object | |
| 2622 make_weak_list (enum weak_list_type type) | |
| 2623 { | |
| 2624 Lisp_Object result; | |
| 2625 struct weak_list *wl = | |
| 3017 | 2626 ALLOC_LCRECORD_TYPE (struct weak_list, &lrecord_weak_list); |
| 428 | 2627 |
| 2628 wl->list = Qnil; | |
| 2629 wl->type = type; | |
| 793 | 2630 result = wrap_weak_list (wl); |
| 428 | 2631 wl->next_weak = Vall_weak_lists; |
| 2632 Vall_weak_lists = result; | |
| 2633 return result; | |
| 2634 } | |
| 2635 | |
| 1204 | 2636 static const struct memory_description weak_list_description[] = { |
| 1598 | 2637 { XD_LISP_OBJECT, offsetof (struct weak_list, list), |
| 2551 | 2638 0, { 0 }, XD_FLAG_NO_KKCC }, |
| 1598 | 2639 { XD_LO_LINK, offsetof (struct weak_list, next_weak), |
| 2551 | 2640 0, { 0 }, XD_FLAG_NO_KKCC }, |
| 428 | 2641 { XD_END } |
| 2642 }; | |
| 2643 | |
| 934 | 2644 DEFINE_LRECORD_IMPLEMENTATION ("weak-list", weak_list, |
| 2645 1, /*dumpable-flag*/ | |
| 2646 mark_weak_list, print_weak_list, | |
| 2647 0, weak_list_equal, weak_list_hash, | |
| 2648 weak_list_description, | |
| 2649 struct weak_list); | |
| 428 | 2650 /* |
| 2651 -- we do not mark the list elements (either the elements themselves | |
| 2652 or the cons cells that hold them) in the normal marking phase. | |
| 2653 -- at the end of marking, we go through all weak lists that are | |
| 2654 marked, and mark the cons cells that hold all marked | |
| 2655 objects, and possibly parts of the objects themselves. | |
| 2656 (See alloc.c, "after-mark".) | |
| 2657 -- after that, we prune away all the cons cells that are not marked. | |
| 2658 | |
| 2659 WARNING WARNING WARNING WARNING WARNING: | |
| 2660 | |
| 2661 The code in the following two functions is *unbelievably* tricky. | |
| 2662 Don't mess with it. You'll be sorry. | |
| 2663 | |
| 2664 Linked lists just majorly suck, d'ya know? | |
| 2665 */ | |
| 2666 | |
| 2667 int | |
| 2668 finish_marking_weak_lists (void) | |
| 2669 { | |
| 2670 Lisp_Object rest; | |
| 2671 int did_mark = 0; | |
| 2672 | |
| 2673 for (rest = Vall_weak_lists; | |
| 2674 !NILP (rest); | |
| 2675 rest = XWEAK_LIST (rest)->next_weak) | |
| 2676 { | |
| 2677 Lisp_Object rest2; | |
| 2678 enum weak_list_type type = XWEAK_LIST (rest)->type; | |
| 2679 | |
| 2680 if (! marked_p (rest)) | |
| 2681 /* The weak list is probably garbage. Ignore it. */ | |
| 2682 continue; | |
| 2683 | |
| 2684 for (rest2 = XWEAK_LIST (rest)->list; | |
| 2685 /* We need to be trickier since we're inside of GC; | |
| 2686 use CONSP instead of !NILP in case of user-visible | |
| 2687 imperfect lists */ | |
| 2688 CONSP (rest2); | |
| 2689 rest2 = XCDR (rest2)) | |
| 2690 { | |
| 2691 Lisp_Object elem; | |
| 2692 /* If the element is "marked" (meaning depends on the type | |
| 2693 of weak list), we need to mark the cons containing the | |
| 2694 element, and maybe the element itself (if only some part | |
| 2695 was already marked). */ | |
| 2696 int need_to_mark_cons = 0; | |
| 2697 int need_to_mark_elem = 0; | |
| 2698 | |
| 2699 /* If a cons is already marked, then its car is already marked | |
| 2700 (either because of an external pointer or because of | |
| 2701 a previous call to this function), and likewise for all | |
| 2702 the rest of the elements in the list, so we can stop now. */ | |
| 2703 if (marked_p (rest2)) | |
| 2704 break; | |
| 2705 | |
| 2706 elem = XCAR (rest2); | |
| 2707 | |
| 2708 switch (type) | |
| 2709 { | |
| 2710 case WEAK_LIST_SIMPLE: | |
| 2711 if (marked_p (elem)) | |
| 2712 need_to_mark_cons = 1; | |
| 2713 break; | |
| 2714 | |
| 2715 case WEAK_LIST_ASSOC: | |
| 2716 if (!CONSP (elem)) | |
| 2717 { | |
| 2718 /* just leave bogus elements there */ | |
| 2719 need_to_mark_cons = 1; | |
| 2720 need_to_mark_elem = 1; | |
| 2721 } | |
| 2722 else if (marked_p (XCAR (elem)) && | |
| 2723 marked_p (XCDR (elem))) | |
| 2724 { | |
| 2725 need_to_mark_cons = 1; | |
| 2726 /* We still need to mark elem, because it's | |
| 2727 probably not marked. */ | |
| 2728 need_to_mark_elem = 1; | |
| 2729 } | |
| 2730 break; | |
| 2731 | |
| 2732 case WEAK_LIST_KEY_ASSOC: | |
| 2733 if (!CONSP (elem)) | |
| 2734 { | |
| 2735 /* just leave bogus elements there */ | |
| 2736 need_to_mark_cons = 1; | |
| 2737 need_to_mark_elem = 1; | |
| 2738 } | |
| 2739 else if (marked_p (XCAR (elem))) | |
| 2740 { | |
| 2741 need_to_mark_cons = 1; | |
| 2742 /* We still need to mark elem and XCDR (elem); | |
| 2743 marking elem does both */ | |
| 2744 need_to_mark_elem = 1; | |
| 2745 } | |
| 2746 break; | |
| 2747 | |
| 2748 case WEAK_LIST_VALUE_ASSOC: | |
| 2749 if (!CONSP (elem)) | |
| 2750 { | |
| 2751 /* just leave bogus elements there */ | |
| 2752 need_to_mark_cons = 1; | |
| 2753 need_to_mark_elem = 1; | |
| 2754 } | |
| 2755 else if (marked_p (XCDR (elem))) | |
| 2756 { | |
| 2757 need_to_mark_cons = 1; | |
| 2758 /* We still need to mark elem and XCAR (elem); | |
| 2759 marking elem does both */ | |
| 2760 need_to_mark_elem = 1; | |
| 2761 } | |
| 2762 break; | |
| 2763 | |
| 442 | 2764 case WEAK_LIST_FULL_ASSOC: |
| 2765 if (!CONSP (elem)) | |
| 2766 { | |
| 2767 /* just leave bogus elements there */ | |
| 2768 need_to_mark_cons = 1; | |
| 2769 need_to_mark_elem = 1; | |
| 2770 } | |
| 2771 else if (marked_p (XCAR (elem)) || | |
| 2772 marked_p (XCDR (elem))) | |
| 2773 { | |
| 2774 need_to_mark_cons = 1; | |
| 2775 /* We still need to mark elem and XCAR (elem); | |
| 2776 marking elem does both */ | |
| 2777 need_to_mark_elem = 1; | |
| 2778 } | |
| 2779 break; | |
| 2780 | |
| 428 | 2781 default: |
| 2500 | 2782 ABORT (); |
| 428 | 2783 } |
| 2784 | |
| 2785 if (need_to_mark_elem && ! marked_p (elem)) | |
| 2786 { | |
| 1598 | 2787 #ifdef USE_KKCC |
| 2645 | 2788 kkcc_gc_stack_push_lisp_object (elem, 0, -1); |
| 1598 | 2789 #else /* NOT USE_KKCC */ |
| 428 | 2790 mark_object (elem); |
| 1598 | 2791 #endif /* NOT USE_KKCC */ |
| 428 | 2792 did_mark = 1; |
| 2793 } | |
| 2794 | |
| 2795 /* We also need to mark the cons that holds the elem or | |
| 2796 assoc-pair. We do *not* want to call (mark_object) here | |
| 2797 because that will mark the entire list; we just want to | |
| 2798 mark the cons itself. | |
| 2799 */ | |
| 2800 if (need_to_mark_cons) | |
| 2801 { | |
| 2802 Lisp_Cons *c = XCONS (rest2); | |
| 2803 if (!CONS_MARKED_P (c)) | |
| 2804 { | |
| 2805 MARK_CONS (c); | |
| 2806 did_mark = 1; | |
| 2807 } | |
| 2808 } | |
| 2809 } | |
| 2810 | |
| 2811 /* In case of imperfect list, need to mark the final cons | |
| 2812 because we're not removing it */ | |
| 2813 if (!NILP (rest2) && ! marked_p (rest2)) | |
| 2814 { | |
| 1598 | 2815 #ifdef USE_KKCC |
| 2645 | 2816 kkcc_gc_stack_push_lisp_object (rest2, 0, -1); |
| 1598 | 2817 #else /* NOT USE_KKCC */ |
| 428 | 2818 mark_object (rest2); |
| 1598 | 2819 #endif /* NOT USE_KKCC */ |
| 428 | 2820 did_mark = 1; |
| 2821 } | |
| 2822 } | |
| 2823 | |
| 2824 return did_mark; | |
| 2825 } | |
| 2826 | |
| 2827 void | |
| 2828 prune_weak_lists (void) | |
| 2829 { | |
| 2830 Lisp_Object rest, prev = Qnil; | |
| 2831 | |
| 2832 for (rest = Vall_weak_lists; | |
| 2833 !NILP (rest); | |
| 2834 rest = XWEAK_LIST (rest)->next_weak) | |
| 2835 { | |
| 2836 if (! (marked_p (rest))) | |
| 2837 { | |
| 2838 /* This weak list itself is garbage. Remove it from the list. */ | |
| 2839 if (NILP (prev)) | |
| 2840 Vall_weak_lists = XWEAK_LIST (rest)->next_weak; | |
| 2841 else | |
| 2842 XWEAK_LIST (prev)->next_weak = | |
| 2843 XWEAK_LIST (rest)->next_weak; | |
| 2844 } | |
| 2845 else | |
| 2846 { | |
| 2847 Lisp_Object rest2, prev2 = Qnil; | |
| 2848 Lisp_Object tortoise; | |
| 2849 int go_tortoise = 0; | |
| 2850 | |
| 2851 for (rest2 = XWEAK_LIST (rest)->list, tortoise = rest2; | |
| 2852 /* We need to be trickier since we're inside of GC; | |
| 2853 use CONSP instead of !NILP in case of user-visible | |
| 2854 imperfect lists */ | |
| 2855 CONSP (rest2);) | |
| 2856 { | |
| 2857 /* It suffices to check the cons for marking, | |
| 2858 regardless of the type of weak list: | |
| 2859 | |
| 2860 -- if the cons is pointed to somewhere else, | |
| 2861 then it should stay around and will be marked. | |
| 2862 -- otherwise, if it should stay around, it will | |
| 2863 have been marked in finish_marking_weak_lists(). | |
| 2864 -- otherwise, it's not marked and should disappear. | |
| 2865 */ | |
| 2866 if (! marked_p (rest2)) | |
| 2867 { | |
| 2868 /* bye bye :-( */ | |
| 2869 if (NILP (prev2)) | |
| 2870 XWEAK_LIST (rest)->list = XCDR (rest2); | |
| 2871 else | |
| 2872 XCDR (prev2) = XCDR (rest2); | |
| 2873 rest2 = XCDR (rest2); | |
| 2874 /* Ouch. Circularity checking is even trickier | |
| 2875 than I thought. When we cut out a link | |
| 2876 like this, we can't advance the turtle or | |
| 2877 it'll catch up to us. Imagine that we're | |
| 2878 standing on floor tiles and moving forward -- | |
| 2879 what we just did here is as if the floor | |
| 2880 tile under us just disappeared and all the | |
| 2881 ones ahead of us slid one tile towards us. | |
| 2882 In other words, we didn't move at all; | |
| 2883 if the tortoise was one step behind us | |
| 2884 previously, it still is, and therefore | |
| 2885 it must not move. */ | |
| 2886 } | |
| 2887 else | |
| 2888 { | |
| 2889 prev2 = rest2; | |
| 2890 | |
| 2891 /* Implementing circularity checking is trickier here | |
| 2892 than in other places because we have to guarantee | |
| 2893 that we've processed all elements before exiting | |
| 2894 due to a circularity. (In most places, an error | |
| 2895 is issued upon encountering a circularity, so it | |
| 2896 doesn't really matter if all elements are processed.) | |
| 2897 The idea is that we process along with the hare | |
| 2898 rather than the tortoise. If at any point in | |
| 2899 our forward process we encounter the tortoise, | |
| 2900 we must have already visited the spot, so we exit. | |
| 2901 (If we process with the tortoise, we can fail to | |
| 2902 process cases where a cons points to itself, or | |
| 2903 where cons A points to cons B, which points to | |
| 2904 cons A.) */ | |
| 2905 | |
| 2906 rest2 = XCDR (rest2); | |
| 2907 if (go_tortoise) | |
| 2908 tortoise = XCDR (tortoise); | |
| 2909 go_tortoise = !go_tortoise; | |
| 2910 if (EQ (rest2, tortoise)) | |
| 2911 break; | |
| 2912 } | |
| 2913 } | |
| 2914 | |
| 2915 prev = rest; | |
| 2916 } | |
| 2917 } | |
| 2918 } | |
| 2919 | |
| 2920 static enum weak_list_type | |
| 2921 decode_weak_list_type (Lisp_Object symbol) | |
| 2922 { | |
| 2923 CHECK_SYMBOL (symbol); | |
| 2924 if (EQ (symbol, Qsimple)) return WEAK_LIST_SIMPLE; | |
| 2925 if (EQ (symbol, Qassoc)) return WEAK_LIST_ASSOC; | |
| 2926 if (EQ (symbol, Qold_assoc)) return WEAK_LIST_ASSOC; /* EBOLA ALERT! */ | |
| 2927 if (EQ (symbol, Qkey_assoc)) return WEAK_LIST_KEY_ASSOC; | |
| 2928 if (EQ (symbol, Qvalue_assoc)) return WEAK_LIST_VALUE_ASSOC; | |
| 442 | 2929 if (EQ (symbol, Qfull_assoc)) return WEAK_LIST_FULL_ASSOC; |
| 428 | 2930 |
| 563 | 2931 invalid_constant ("Invalid weak list type", symbol); |
| 1204 | 2932 RETURN_NOT_REACHED (WEAK_LIST_SIMPLE); |
| 428 | 2933 } |
| 2934 | |
| 2935 static Lisp_Object | |
| 2936 encode_weak_list_type (enum weak_list_type type) | |
| 2937 { | |
| 2938 switch (type) | |
| 2939 { | |
| 2940 case WEAK_LIST_SIMPLE: return Qsimple; | |
| 2941 case WEAK_LIST_ASSOC: return Qassoc; | |
| 2942 case WEAK_LIST_KEY_ASSOC: return Qkey_assoc; | |
| 2943 case WEAK_LIST_VALUE_ASSOC: return Qvalue_assoc; | |
| 442 | 2944 case WEAK_LIST_FULL_ASSOC: return Qfull_assoc; |
| 428 | 2945 default: |
| 2500 | 2946 ABORT (); |
| 428 | 2947 } |
| 2948 | |
| 801 | 2949 return Qnil; /* not (usually) reached */ |
| 428 | 2950 } |
| 2951 | |
| 2952 DEFUN ("weak-list-p", Fweak_list_p, 1, 1, 0, /* | |
| 2953 Return non-nil if OBJECT is a weak list. | |
| 2954 */ | |
| 2955 (object)) | |
| 2956 { | |
| 2957 return WEAK_LISTP (object) ? Qt : Qnil; | |
| 2958 } | |
| 2959 | |
| 2960 DEFUN ("make-weak-list", Fmake_weak_list, 0, 1, 0, /* | |
| 2961 Return a new weak list object of type TYPE. | |
| 2962 A weak list object is an object that contains a list. This list behaves | |
| 2963 like any other list except that its elements do not count towards | |
| 456 | 2964 garbage collection -- if the only pointer to an object is inside a weak |
| 428 | 2965 list (other than pointers in similar objects such as weak hash tables), |
| 2966 the object is garbage collected and automatically removed from the list. | |
| 2967 This is used internally, for example, to manage the list holding the | |
| 2968 children of an extent -- an extent that is unused but has a parent will | |
| 2969 still be reclaimed, and will automatically be removed from its parent's | |
| 2970 list of children. | |
| 2971 | |
| 2972 Optional argument TYPE specifies the type of the weak list, and defaults | |
| 2973 to `simple'. Recognized types are | |
| 2974 | |
| 2975 `simple' Objects in the list disappear if not pointed to. | |
| 2976 `assoc' Objects in the list disappear if they are conses | |
| 2977 and either the car or the cdr of the cons is not | |
| 2978 pointed to. | |
| 2979 `key-assoc' Objects in the list disappear if they are conses | |
| 2980 and the car is not pointed to. | |
| 2981 `value-assoc' Objects in the list disappear if they are conses | |
| 2982 and the cdr is not pointed to. | |
| 442 | 2983 `full-assoc' Objects in the list disappear if they are conses |
| 2984 and neither the car nor the cdr is pointed to. | |
| 428 | 2985 */ |
| 2986 (type)) | |
| 2987 { | |
| 2988 if (NILP (type)) | |
| 2989 type = Qsimple; | |
| 2990 | |
| 2991 return make_weak_list (decode_weak_list_type (type)); | |
| 2992 } | |
| 2993 | |
| 2994 DEFUN ("weak-list-type", Fweak_list_type, 1, 1, 0, /* | |
| 2995 Return the type of the given weak-list object. | |
| 2996 */ | |
| 2997 (weak)) | |
| 2998 { | |
| 2999 CHECK_WEAK_LIST (weak); | |
| 3000 return encode_weak_list_type (XWEAK_LIST (weak)->type); | |
| 3001 } | |
| 3002 | |
| 3003 DEFUN ("weak-list-list", Fweak_list_list, 1, 1, 0, /* | |
| 3004 Return the list contained in a weak-list object. | |
| 3005 */ | |
| 3006 (weak)) | |
| 3007 { | |
| 3008 CHECK_WEAK_LIST (weak); | |
| 3009 return XWEAK_LIST_LIST (weak); | |
| 3010 } | |
| 3011 | |
| 3012 DEFUN ("set-weak-list-list", Fset_weak_list_list, 2, 2, 0, /* | |
| 3013 Change the list contained in a weak-list object. | |
| 3014 */ | |
| 3015 (weak, new_list)) | |
| 3016 { | |
| 3017 CHECK_WEAK_LIST (weak); | |
| 3018 XWEAK_LIST_LIST (weak) = new_list; | |
| 3019 return new_list; | |
| 3020 } | |
| 3021 | |
| 888 | 3022 |
| 858 | 3023 /************************************************************************/ |
| 3024 /* weak boxes */ | |
| 3025 /************************************************************************/ | |
| 3026 | |
| 3027 static Lisp_Object Vall_weak_boxes; /* Gemarke es niemals ever!!! */ | |
| 3028 | |
| 3029 void | |
| 3030 prune_weak_boxes (void) | |
| 3031 { | |
| 3032 Lisp_Object rest, prev = Qnil; | |
| 888 | 3033 int removep = 0; |
| 858 | 3034 |
| 3035 for (rest = Vall_weak_boxes; | |
| 3036 !NILP(rest); | |
| 3037 rest = XWEAK_BOX (rest)->next_weak_box) | |
| 3038 { | |
| 3039 if (! (marked_p (rest))) | |
| 888 | 3040 /* This weak box itself is garbage. */ |
| 3041 removep = 1; | |
| 3042 | |
| 3043 if (! marked_p (XWEAK_BOX (rest)->value)) | |
| 3044 { | |
| 3045 XSET_WEAK_BOX (rest, Qnil); | |
| 3046 removep = 1; | |
| 3047 } | |
| 3048 | |
| 3049 if (removep) | |
| 3050 { | |
| 3051 /* Remove weak box from list. */ | |
| 3052 if (NILP (prev)) | |
| 3053 Vall_weak_boxes = XWEAK_BOX (rest)->next_weak_box; | |
| 3054 else | |
| 3055 XWEAK_BOX (prev)->next_weak_box = XWEAK_BOX (rest)->next_weak_box; | |
| 3056 removep = 0; | |
| 3057 } | |
| 3058 else | |
| 3059 prev = rest; | |
| 858 | 3060 } |
| 3061 } | |
| 3062 | |
| 3063 static Lisp_Object | |
| 2286 | 3064 mark_weak_box (Lisp_Object UNUSED (obj)) |
| 858 | 3065 { |
| 3066 return Qnil; | |
| 3067 } | |
| 3068 | |
| 3069 static void | |
| 4846 | 3070 print_weak_box (Lisp_Object obj, Lisp_Object printcharfun, |
| 2286 | 3071 int UNUSED (escapeflag)) |
| 858 | 3072 { |
| 3073 if (print_readably) | |
| 4846 | 3074 printing_unreadable_lcrecord (obj, 0); |
| 3075 write_fmt_string (printcharfun, "#<weak-box>"); /* #### fix */ | |
| 858 | 3076 } |
| 3077 | |
| 3078 static int | |
| 3079 weak_box_equal (Lisp_Object obj1, Lisp_Object obj2, int depth) | |
| 3080 { | |
| 888 | 3081 struct weak_box *wb1 = XWEAK_BOX (obj1); |
| 3082 struct weak_box *wb2 = XWEAK_BOX (obj2); | |
| 858 | 3083 |
| 888 | 3084 return (internal_equal (wb1->value, wb2->value, depth + 1)); |
| 858 | 3085 } |
| 3086 | |
| 3087 static Hashcode | |
| 3088 weak_box_hash (Lisp_Object obj, int depth) | |
| 3089 { | |
| 888 | 3090 struct weak_box *wb = XWEAK_BOX (obj); |
| 858 | 3091 |
| 888 | 3092 return internal_hash (wb->value, depth + 1); |
| 858 | 3093 } |
| 3094 | |
| 3095 Lisp_Object | |
| 3096 make_weak_box (Lisp_Object value) | |
| 3097 { | |
| 3098 Lisp_Object result; | |
| 3099 | |
| 3100 struct weak_box *wb = | |
| 3017 | 3101 ALLOC_LCRECORD_TYPE (struct weak_box, &lrecord_weak_box); |
| 858 | 3102 |
| 3103 wb->value = value; | |
| 3104 result = wrap_weak_box (wb); | |
| 3105 wb->next_weak_box = Vall_weak_boxes; | |
| 3106 Vall_weak_boxes = result; | |
| 3107 return result; | |
| 3108 } | |
| 3109 | |
| 1204 | 3110 static const struct memory_description weak_box_description[] = { |
| 858 | 3111 { XD_LO_LINK, offsetof (struct weak_box, value) }, |
| 888 | 3112 { XD_END} |
| 858 | 3113 }; |
| 3114 | |
| 934 | 3115 DEFINE_LRECORD_IMPLEMENTATION ("weak_box", weak_box, |
| 3116 0, /*dumpable-flag*/ | |
| 3117 mark_weak_box, print_weak_box, | |
| 3118 0, weak_box_equal, weak_box_hash, | |
| 3119 weak_box_description, | |
| 3120 struct weak_box); | |
| 858 | 3121 |
| 3122 DEFUN ("make-weak-box", Fmake_weak_box, 1, 1, 0, /* | |
| 3123 Return a new weak box from value CONTENTS. | |
| 3124 The weak box is a reference to CONTENTS which may be extracted with | |
| 3125 `weak-box-ref'. However, the weak box does not contribute to the | |
| 3126 reachability of CONTENTS. When CONTENTS is garbage-collected, | |
| 3127 `weak-box-ref' will return NIL. | |
| 3128 */ | |
| 3129 (value)) | |
| 3130 { | |
| 3131 return make_weak_box(value); | |
| 3132 } | |
| 3133 | |
| 3134 DEFUN ("weak-box-ref", Fweak_box_ref, 1, 1, 0, /* | |
| 3135 Return the contents of weak box WEAK-BOX. | |
| 3136 If the contents have been GCed, return NIL. | |
| 3137 */ | |
| 888 | 3138 (wb)) |
| 858 | 3139 { |
| 888 | 3140 return XWEAK_BOX (wb)->value; |
| 858 | 3141 } |
| 3142 | |
| 3143 DEFUN ("weak-box-p", Fweak_boxp, 1, 1, 0, /* | |
| 3144 Return non-nil if OBJECT is a weak box. | |
| 3145 */ | |
| 3146 (object)) | |
| 3147 { | |
| 3148 return WEAK_BOXP (object) ? Qt : Qnil; | |
| 3149 } | |
| 3150 | |
| 888 | 3151 /************************************************************************/ |
| 3152 /* ephemerons */ | |
| 3153 /************************************************************************/ | |
| 3154 | |
| 993 | 3155 /* The concept of ephemerons is due to: |
| 3156 * Barry Hayes: Ephemerons: A New Finalization Mechanism. OOPSLA 1997: 176-183 | |
| 3157 * The original idea is due to George Bosworth of Digitalk, Inc. | |
| 3158 * | |
| 3159 * For a discussion of finalization and weakness that also reviews | |
| 3160 * ephemerons, refer to: | |
| 3161 * Simon Peyton Jones, Simon Marlow, Conal Elliot: | |
| 3162 * Stretching the storage manager | |
| 3163 * Implementation of Functional Languages, 1999 | |
| 3164 */ | |
| 3165 | |
| 888 | 3166 static Lisp_Object Vall_ephemerons; /* Gemarke es niemals ever!!! */ |
| 1590 | 3167 static Lisp_Object Vnew_all_ephemerons; |
| 888 | 3168 static Lisp_Object Vfinalize_list; |
| 3169 | |
| 1590 | 3170 void |
| 3171 init_marking_ephemerons(void) | |
| 3172 { | |
| 3173 Vnew_all_ephemerons = Qnil; | |
| 3174 } | |
| 3175 | |
| 3176 /* Move all live ephemerons with live keys over to | |
| 3177 * Vnew_all_ephemerons, marking the values and finalizers along the | |
| 3178 * way. */ | |
| 3179 | |
| 3180 int | |
| 3181 continue_marking_ephemerons(void) | |
| 3182 { | |
| 3183 Lisp_Object rest = Vall_ephemerons, next, prev = Qnil; | |
| 3184 int did_mark = 0; | |
| 3185 | |
| 3186 while (!NILP (rest)) | |
| 3187 { | |
| 3188 next = XEPHEMERON_NEXT (rest); | |
| 3189 | |
| 3190 if (marked_p (rest)) | |
| 3191 { | |
| 3192 MARK_CONS (XCONS (XEPHEMERON (rest)->cons_chain)); | |
| 3193 if (marked_p (XEPHEMERON (rest)->key)) | |
| 3194 { | |
| 1598 | 3195 #ifdef USE_KKCC |
| 3196 kkcc_gc_stack_push_lisp_object | |
| 2645 | 3197 (XCAR (XEPHEMERON (rest)->cons_chain), 0, -1); |
| 1598 | 3198 #else /* NOT USE_KKCC */ |
| 1590 | 3199 mark_object (XCAR (XEPHEMERON (rest)->cons_chain)); |
| 1598 | 3200 #endif /* NOT USE_KKCC */ |
| 1590 | 3201 did_mark = 1; |
| 3202 XSET_EPHEMERON_NEXT (rest, Vnew_all_ephemerons); | |
| 3203 Vnew_all_ephemerons = rest; | |
| 3204 if (NILP (prev)) | |
| 3205 Vall_ephemerons = next; | |
| 3206 else | |
| 3207 XSET_EPHEMERON_NEXT (prev, next); | |
| 3208 } | |
| 3209 else | |
| 3210 prev = rest; | |
| 3211 } | |
| 3212 else | |
| 3213 prev = rest; | |
| 3214 | |
| 3215 rest = next; | |
| 3216 } | |
| 3217 | |
| 3218 return did_mark; | |
| 3219 } | |
| 3220 | |
| 3221 /* At this point, everything that's in Vall_ephemerons is dead. | |
| 3222 * Well, almost: we still need to run the finalizers, so we need to | |
| 3223 * resurrect them. | |
| 3224 */ | |
| 3225 | |
| 888 | 3226 int |
| 3227 finish_marking_ephemerons(void) | |
| 3228 { | |
| 1590 | 3229 Lisp_Object rest = Vall_ephemerons, next, prev = Qnil; |
| 888 | 3230 int did_mark = 0; |
| 3231 | |
| 3232 while (! NILP (rest)) | |
| 3233 { | |
| 3234 next = XEPHEMERON_NEXT (rest); | |
| 3235 | |
| 3236 if (marked_p (rest)) | |
| 1590 | 3237 /* The ephemeron itself is live, but its key is garbage */ |
| 888 | 3238 { |
| 1590 | 3239 /* tombstone */ |
| 3240 XSET_EPHEMERON_VALUE (rest, Qnil); | |
| 3241 | |
| 3242 if (! NILP (XEPHEMERON_FINALIZER (rest))) | |
| 888 | 3243 { |
| 1590 | 3244 MARK_CONS (XCONS (XEPHEMERON (rest)->cons_chain)); |
| 1598 | 3245 #ifdef USE_KKCC |
| 3246 kkcc_gc_stack_push_lisp_object | |
| 2645 | 3247 (XCAR (XEPHEMERON (rest)->cons_chain), 0, -1); |
| 1598 | 3248 #else /* NOT USE_KKCC */ |
| 1590 | 3249 mark_object (XCAR (XEPHEMERON (rest)->cons_chain)); |
| 1598 | 3250 #endif /* NOT USE_KKCC */ |
| 1590 | 3251 |
| 3252 /* Register the finalizer */ | |
| 3253 XSET_EPHEMERON_NEXT (rest, Vfinalize_list); | |
| 3254 Vfinalize_list = XEPHEMERON (rest)->cons_chain; | |
| 3255 did_mark = 1; | |
| 888 | 3256 } |
| 3257 | |
| 3258 /* Remove it from the list. */ | |
| 3259 if (NILP (prev)) | |
| 3260 Vall_ephemerons = next; | |
| 3261 else | |
| 3262 XSET_EPHEMERON_NEXT (prev, next); | |
| 3263 } | |
| 3264 else | |
| 3265 prev = rest; | |
| 3266 | |
| 3267 rest = next; | |
| 3268 } | |
| 1590 | 3269 |
| 3270 return did_mark; | |
| 3271 } | |
| 3272 | |
| 3273 void | |
| 3274 prune_ephemerons(void) | |
| 3275 { | |
| 3276 Vall_ephemerons = Vnew_all_ephemerons; | |
| 888 | 3277 } |
| 3278 | |
| 3279 Lisp_Object | |
| 3280 zap_finalize_list(void) | |
| 3281 { | |
| 3282 Lisp_Object finalizers = Vfinalize_list; | |
| 3283 | |
| 3284 Vfinalize_list = Qnil; | |
| 3285 | |
| 3286 return finalizers; | |
| 3287 } | |
| 3288 | |
| 3289 static Lisp_Object | |
| 2286 | 3290 mark_ephemeron (Lisp_Object UNUSED (obj)) |
| 888 | 3291 { |
| 3292 return Qnil; | |
| 3293 } | |
| 3294 | |
| 3295 static void | |
| 4846 | 3296 print_ephemeron (Lisp_Object obj, Lisp_Object printcharfun, |
| 2286 | 3297 int UNUSED (escapeflag)) |
| 888 | 3298 { |
| 3299 if (print_readably) | |
| 4846 | 3300 printing_unreadable_lcrecord (obj, 0); |
| 3301 write_fmt_string (printcharfun, "#<ephemeron>"); /* #### fix */ | |
| 888 | 3302 } |
| 3303 | |
| 3304 static int | |
| 3305 ephemeron_equal (Lisp_Object obj1, Lisp_Object obj2, int depth) | |
| 3306 { | |
| 3307 return | |
| 3308 internal_equal (XEPHEMERON_REF (obj1), XEPHEMERON_REF(obj2), depth + 1); | |
| 3309 } | |
| 3310 | |
| 3311 static Hashcode | |
| 3312 ephemeron_hash(Lisp_Object obj, int depth) | |
| 3313 { | |
| 3314 return internal_hash (XEPHEMERON_REF (obj), depth + 1); | |
| 3315 } | |
| 3316 | |
| 3317 Lisp_Object | |
| 3318 make_ephemeron(Lisp_Object key, Lisp_Object value, Lisp_Object finalizer) | |
| 3319 { | |
| 3320 Lisp_Object result, temp = Qnil; | |
| 3321 struct gcpro gcpro1, gcpro2; | |
| 3322 | |
| 3323 struct ephemeron *eph = | |
| 3017 | 3324 ALLOC_LCRECORD_TYPE (struct ephemeron, &lrecord_ephemeron); |
| 888 | 3325 |
| 3326 eph->key = Qnil; | |
| 3327 eph->cons_chain = Qnil; | |
| 3328 eph->value = Qnil; | |
| 3329 | |
| 3330 result = wrap_ephemeron(eph); | |
| 3331 GCPRO2 (result, temp); | |
| 3332 | |
| 3333 eph->key = key; | |
| 3334 temp = Fcons(value, finalizer); | |
| 3335 eph->cons_chain = Fcons(temp, Vall_ephemerons); | |
| 3336 eph->value = value; | |
| 3337 | |
| 3338 Vall_ephemerons = result; | |
| 3339 | |
| 3340 UNGCPRO; | |
| 3341 return result; | |
| 3342 } | |
| 3343 | |
| 1598 | 3344 /* Ephemerons are special cases in the KKCC mark algorithm, so nothing |
| 3345 is marked here. */ | |
| 1204 | 3346 static const struct memory_description ephemeron_description[] = { |
| 3347 { XD_LISP_OBJECT, offsetof(struct ephemeron, key), | |
| 2551 | 3348 0, { 0 }, XD_FLAG_NO_KKCC }, |
| 1204 | 3349 { XD_LISP_OBJECT, offsetof(struct ephemeron, cons_chain), |
| 2551 | 3350 0, { 0 }, XD_FLAG_NO_KKCC }, |
| 1204 | 3351 { XD_LISP_OBJECT, offsetof(struct ephemeron, value), |
| 2551 | 3352 0, { 0 }, XD_FLAG_NO_KKCC }, |
| 888 | 3353 { XD_END } |
| 3354 }; | |
| 3355 | |
| 934 | 3356 DEFINE_LRECORD_IMPLEMENTATION ("ephemeron", ephemeron, |
| 3357 0, /*dumpable-flag*/ | |
| 3358 mark_ephemeron, print_ephemeron, | |
| 3359 0, ephemeron_equal, ephemeron_hash, | |
| 3360 ephemeron_description, | |
| 3361 struct ephemeron); | |
| 888 | 3362 |
| 3363 DEFUN ("make-ephemeron", Fmake_ephemeron, 2, 3, 0, /* | |
| 1590 | 3364 Return a new ephemeron with key KEY, value VALUE, and finalizer FINALIZER. |
| 3365 The ephemeron is a reference to VALUE which may be extracted with | |
| 3366 `ephemeron-ref'. VALUE is only reachable through the ephemeron as | |
| 888 | 3367 long as KEY is reachable; the ephemeron does not contribute to the |
| 3368 reachability of KEY. When KEY becomes unreachable while the ephemeron | |
| 1590 | 3369 itself is still reachable, VALUE is queued for finalization: FINALIZER |
| 3370 will possibly be called on VALUE some time in the future. Moreover, | |
| 888 | 3371 future calls to `ephemeron-ref' will return NIL. |
| 3372 */ | |
| 3373 (key, value, finalizer)) | |
| 3374 { | |
| 3375 return make_ephemeron(key, value, finalizer); | |
| 3376 } | |
| 3377 | |
| 3378 DEFUN ("ephemeron-ref", Fephemeron_ref, 1, 1, 0, /* | |
| 3379 Return the contents of ephemeron EPHEMERON. | |
| 3380 If the contents have been GCed, return NIL. | |
| 3381 */ | |
| 3382 (eph)) | |
| 3383 { | |
| 3384 return XEPHEMERON_REF (eph); | |
| 3385 } | |
| 3386 | |
| 3387 DEFUN ("ephemeron-p", Fephemeronp, 1, 1, 0, /* | |
| 3388 Return non-nil if OBJECT is an ephemeron. | |
| 3389 */ | |
| 3390 (object)) | |
| 3391 { | |
| 3392 return EPHEMERONP (object) ? Qt : Qnil; | |
| 3393 } | |
| 428 | 3394 |
| 3395 /************************************************************************/ | |
| 3396 /* initialization */ | |
| 3397 /************************************************************************/ | |
| 3398 | |
| 3399 static SIGTYPE | |
| 3400 arith_error (int signo) | |
| 3401 { | |
| 3402 EMACS_REESTABLISH_SIGNAL (signo, arith_error); | |
| 3403 EMACS_UNBLOCK_SIGNAL (signo); | |
| 563 | 3404 signal_error (Qarith_error, 0, Qunbound); |
| 428 | 3405 } |
| 3406 | |
| 3407 void | |
| 3408 init_data_very_early (void) | |
| 3409 { | |
| 3410 /* Don't do this if just dumping out. | |
| 3411 We don't want to call `signal' in this case | |
| 3412 so that we don't have trouble with dumping | |
| 3413 signal-delivering routines in an inconsistent state. */ | |
| 3414 if (!initialized) | |
| 3415 return; | |
| 613 | 3416 EMACS_SIGNAL (SIGFPE, arith_error); |
| 428 | 3417 #ifdef uts |
| 613 | 3418 EMACS_SIGNAL (SIGEMT, arith_error); |
| 428 | 3419 #endif /* uts */ |
| 3420 } | |
| 3421 | |
| 3422 void | |
| 3423 init_errors_once_early (void) | |
| 3424 { | |
| 442 | 3425 DEFSYMBOL (Qerror_conditions); |
| 3426 DEFSYMBOL (Qerror_message); | |
| 428 | 3427 |
| 3428 /* We declare the errors here because some other deferrors depend | |
| 3429 on some of the errors below. */ | |
| 3430 | |
| 3431 /* ERROR is used as a signaler for random errors for which nothing | |
| 3432 else is right */ | |
| 3433 | |
| 442 | 3434 DEFERROR (Qerror, "error", Qnil); |
| 3435 DEFERROR_STANDARD (Qquit, Qnil); | |
| 428 | 3436 |
| 563 | 3437 DEFERROR_STANDARD (Qinvalid_argument, Qerror); |
| 3438 | |
| 3439 DEFERROR_STANDARD (Qsyntax_error, Qinvalid_argument); | |
| 442 | 3440 DEFERROR_STANDARD (Qinvalid_read_syntax, Qsyntax_error); |
| 563 | 3441 DEFERROR_STANDARD (Qstructure_formation_error, Qsyntax_error); |
| 3442 DEFERROR_STANDARD (Qlist_formation_error, Qstructure_formation_error); | |
| 442 | 3443 DEFERROR_STANDARD (Qmalformed_list, Qlist_formation_error); |
| 3444 DEFERROR_STANDARD (Qmalformed_property_list, Qmalformed_list); | |
| 3445 DEFERROR_STANDARD (Qcircular_list, Qlist_formation_error); | |
| 3446 DEFERROR_STANDARD (Qcircular_property_list, Qcircular_list); | |
| 428 | 3447 |
| 442 | 3448 DEFERROR_STANDARD (Qwrong_type_argument, Qinvalid_argument); |
| 3449 DEFERROR_STANDARD (Qargs_out_of_range, Qinvalid_argument); | |
| 3450 DEFERROR_STANDARD (Qwrong_number_of_arguments, Qinvalid_argument); | |
| 3451 DEFERROR_STANDARD (Qinvalid_function, Qinvalid_argument); | |
| 563 | 3452 DEFERROR_STANDARD (Qinvalid_constant, Qinvalid_argument); |
| 442 | 3453 DEFERROR (Qno_catch, "No catch for tag", Qinvalid_argument); |
| 3454 | |
| 563 | 3455 DEFERROR_STANDARD (Qinvalid_state, Qerror); |
| 442 | 3456 DEFERROR (Qvoid_function, "Symbol's function definition is void", |
| 3457 Qinvalid_state); | |
| 3458 DEFERROR (Qcyclic_function_indirection, | |
| 3459 "Symbol's chain of function indirections contains a loop", | |
| 3460 Qinvalid_state); | |
| 3461 DEFERROR (Qvoid_variable, "Symbol's value as variable is void", | |
| 3462 Qinvalid_state); | |
| 3463 DEFERROR (Qcyclic_variable_indirection, | |
| 3464 "Symbol's chain of variable indirections contains a loop", | |
| 3465 Qinvalid_state); | |
| 563 | 3466 DEFERROR_STANDARD (Qstack_overflow, Qinvalid_state); |
| 3467 DEFERROR_STANDARD (Qinternal_error, Qinvalid_state); | |
| 3468 DEFERROR_STANDARD (Qout_of_memory, Qinvalid_state); | |
| 428 | 3469 |
| 563 | 3470 DEFERROR_STANDARD (Qinvalid_operation, Qerror); |
| 3471 DEFERROR_STANDARD (Qinvalid_change, Qinvalid_operation); | |
| 442 | 3472 DEFERROR (Qsetting_constant, "Attempt to set a constant symbol", |
| 3473 Qinvalid_change); | |
| 563 | 3474 DEFERROR_STANDARD (Qprinting_unreadable_object, Qinvalid_operation); |
| 3475 DEFERROR (Qunimplemented, "Feature not yet implemented", Qinvalid_operation); | |
| 442 | 3476 |
| 563 | 3477 DEFERROR_STANDARD (Qediting_error, Qinvalid_operation); |
| 442 | 3478 DEFERROR_STANDARD (Qbeginning_of_buffer, Qediting_error); |
| 3479 DEFERROR_STANDARD (Qend_of_buffer, Qediting_error); | |
| 3480 DEFERROR (Qbuffer_read_only, "Buffer is read-only", Qediting_error); | |
| 3481 | |
| 3482 DEFERROR (Qio_error, "IO Error", Qinvalid_operation); | |
| 563 | 3483 DEFERROR_STANDARD (Qfile_error, Qio_error); |
| 3484 DEFERROR (Qend_of_file, "End of file or stream", Qfile_error); | |
| 3485 DEFERROR_STANDARD (Qconversion_error, Qio_error); | |
| 580 | 3486 DEFERROR_STANDARD (Qtext_conversion_error, Qconversion_error); |
| 442 | 3487 |
| 3488 DEFERROR (Qarith_error, "Arithmetic error", Qinvalid_operation); | |
| 3489 DEFERROR (Qrange_error, "Arithmetic range error", Qarith_error); | |
| 3490 DEFERROR (Qdomain_error, "Arithmetic domain error", Qarith_error); | |
| 3491 DEFERROR (Qsingularity_error, "Arithmetic singularity error", Qdomain_error); | |
| 3492 DEFERROR (Qoverflow_error, "Arithmetic overflow error", Qdomain_error); | |
| 3493 DEFERROR (Qunderflow_error, "Arithmetic underflow error", Qdomain_error); | |
| 428 | 3494 } |
| 3495 | |
| 3496 void | |
| 3497 syms_of_data (void) | |
| 3498 { | |
| 442 | 3499 INIT_LRECORD_IMPLEMENTATION (weak_list); |
| 888 | 3500 INIT_LRECORD_IMPLEMENTATION (ephemeron); |
| 858 | 3501 INIT_LRECORD_IMPLEMENTATION (weak_box); |
| 442 | 3502 |
| 3503 DEFSYMBOL (Qquote); | |
| 3504 DEFSYMBOL (Qlambda); | |
| 3505 DEFSYMBOL (Qlistp); | |
| 3506 DEFSYMBOL (Qtrue_list_p); | |
| 3507 DEFSYMBOL (Qconsp); | |
| 3508 DEFSYMBOL (Qsubrp); | |
| 3509 DEFSYMBOL (Qsymbolp); | |
| 3510 DEFSYMBOL (Qintegerp); | |
| 3511 DEFSYMBOL (Qcharacterp); | |
| 3512 DEFSYMBOL (Qnatnump); | |
| 1983 | 3513 DEFSYMBOL (Qnonnegativep); |
| 442 | 3514 DEFSYMBOL (Qstringp); |
| 3515 DEFSYMBOL (Qarrayp); | |
| 3516 DEFSYMBOL (Qsequencep); | |
| 3517 DEFSYMBOL (Qbufferp); | |
| 3518 DEFSYMBOL (Qbitp); | |
| 3519 DEFSYMBOL_MULTIWORD_PREDICATE (Qbit_vectorp); | |
| 3520 DEFSYMBOL (Qvectorp); | |
| 3521 DEFSYMBOL (Qchar_or_string_p); | |
| 3522 DEFSYMBOL (Qmarkerp); | |
| 3523 DEFSYMBOL (Qinteger_or_marker_p); | |
| 3524 DEFSYMBOL (Qinteger_or_char_p); | |
| 3525 DEFSYMBOL (Qinteger_char_or_marker_p); | |
| 3526 DEFSYMBOL (Qnumberp); | |
| 3527 DEFSYMBOL (Qnumber_char_or_marker_p); | |
| 3528 DEFSYMBOL (Qcdr); | |
| 563 | 3529 DEFSYMBOL (Qerror_lacks_explanatory_string); |
| 442 | 3530 DEFSYMBOL_MULTIWORD_PREDICATE (Qweak_listp); |
| 3531 DEFSYMBOL (Qfloatp); | |
| 428 | 3532 |
| 3533 DEFSUBR (Fwrong_type_argument); | |
| 3534 | |
| 1983 | 3535 #ifdef HAVE_RATIO |
| 3536 DEFSUBR (Fdiv); | |
| 3537 #endif | |
| 428 | 3538 DEFSUBR (Feq); |
| 3539 DEFSUBR (Fold_eq); | |
| 3540 DEFSUBR (Fnull); | |
| 3541 Ffset (intern ("not"), intern ("null")); | |
| 3542 DEFSUBR (Flistp); | |
| 3543 DEFSUBR (Fnlistp); | |
| 3544 DEFSUBR (Ftrue_list_p); | |
| 3545 DEFSUBR (Fconsp); | |
| 3546 DEFSUBR (Fatom); | |
| 3547 DEFSUBR (Fchar_or_string_p); | |
| 3548 DEFSUBR (Fcharacterp); | |
| 3549 DEFSUBR (Fchar_int_p); | |
| 3550 DEFSUBR (Fchar_to_int); | |
| 3551 DEFSUBR (Fint_to_char); | |
| 3552 DEFSUBR (Fchar_or_char_int_p); | |
| 1983 | 3553 #ifdef HAVE_BIGNUM |
| 3554 DEFSUBR (Ffixnump); | |
| 3555 #else | |
| 428 | 3556 DEFSUBR (Fintegerp); |
| 1983 | 3557 #endif |
| 428 | 3558 DEFSUBR (Finteger_or_marker_p); |
| 3559 DEFSUBR (Finteger_or_char_p); | |
| 3560 DEFSUBR (Finteger_char_or_marker_p); | |
| 3561 DEFSUBR (Fnumberp); | |
| 3562 DEFSUBR (Fnumber_or_marker_p); | |
| 3563 DEFSUBR (Fnumber_char_or_marker_p); | |
| 3564 DEFSUBR (Ffloatp); | |
| 3565 DEFSUBR (Fnatnump); | |
| 1983 | 3566 DEFSUBR (Fnonnegativep); |
| 428 | 3567 DEFSUBR (Fsymbolp); |
| 3568 DEFSUBR (Fkeywordp); | |
| 3569 DEFSUBR (Fstringp); | |
| 3570 DEFSUBR (Fvectorp); | |
| 3571 DEFSUBR (Fbitp); | |
| 3572 DEFSUBR (Fbit_vector_p); | |
| 3573 DEFSUBR (Farrayp); | |
| 3574 DEFSUBR (Fsequencep); | |
| 3575 DEFSUBR (Fmarkerp); | |
| 3576 DEFSUBR (Fsubrp); | |
| 3577 DEFSUBR (Fsubr_min_args); | |
| 3578 DEFSUBR (Fsubr_max_args); | |
| 3579 DEFSUBR (Fsubr_interactive); | |
| 3580 DEFSUBR (Ftype_of); | |
| 3581 DEFSUBR (Fcar); | |
| 3582 DEFSUBR (Fcdr); | |
| 3583 DEFSUBR (Fcar_safe); | |
| 3584 DEFSUBR (Fcdr_safe); | |
| 3585 DEFSUBR (Fsetcar); | |
| 3586 DEFSUBR (Fsetcdr); | |
| 3587 DEFSUBR (Findirect_function); | |
| 3588 DEFSUBR (Faref); | |
| 3589 DEFSUBR (Faset); | |
| 3590 | |
| 3591 DEFSUBR (Fnumber_to_string); | |
| 3592 DEFSUBR (Fstring_to_number); | |
| 3593 DEFSUBR (Feqlsign); | |
| 3594 DEFSUBR (Flss); | |
| 3595 DEFSUBR (Fgtr); | |
| 3596 DEFSUBR (Fleq); | |
| 3597 DEFSUBR (Fgeq); | |
| 3598 DEFSUBR (Fneq); | |
| 3599 DEFSUBR (Fzerop); | |
| 3600 DEFSUBR (Fplus); | |
| 3601 DEFSUBR (Fminus); | |
| 3602 DEFSUBR (Ftimes); | |
| 3603 DEFSUBR (Fquo); | |
| 3604 DEFSUBR (Frem); | |
| 3605 DEFSUBR (Fmod); | |
| 3606 DEFSUBR (Fmax); | |
| 3607 DEFSUBR (Fmin); | |
| 3608 DEFSUBR (Flogand); | |
| 3609 DEFSUBR (Flogior); | |
| 3610 DEFSUBR (Flogxor); | |
| 3611 DEFSUBR (Flsh); | |
| 3612 DEFSUBR (Fash); | |
| 3613 DEFSUBR (Fadd1); | |
| 3614 DEFSUBR (Fsub1); | |
| 3615 DEFSUBR (Flognot); | |
| 3616 | |
| 3617 DEFSUBR (Fweak_list_p); | |
| 3618 DEFSUBR (Fmake_weak_list); | |
| 3619 DEFSUBR (Fweak_list_type); | |
| 3620 DEFSUBR (Fweak_list_list); | |
| 3621 DEFSUBR (Fset_weak_list_list); | |
| 858 | 3622 |
| 888 | 3623 DEFSUBR (Fmake_ephemeron); |
| 3624 DEFSUBR (Fephemeron_ref); | |
| 3625 DEFSUBR (Fephemeronp); | |
| 858 | 3626 DEFSUBR (Fmake_weak_box); |
| 3627 DEFSUBR (Fweak_box_ref); | |
| 3628 DEFSUBR (Fweak_boxp); | |
| 428 | 3629 } |
| 3630 | |
| 3631 void | |
| 3632 vars_of_data (void) | |
| 3633 { | |
| 3634 /* This must not be staticpro'd */ | |
| 3635 Vall_weak_lists = Qnil; | |
| 452 | 3636 dump_add_weak_object_chain (&Vall_weak_lists); |
| 428 | 3637 |
| 888 | 3638 Vall_ephemerons = Qnil; |
| 3639 dump_add_weak_object_chain (&Vall_ephemerons); | |
| 3640 | |
| 3641 Vfinalize_list = Qnil; | |
| 3642 staticpro (&Vfinalize_list); | |
| 3643 | |
| 858 | 3644 Vall_weak_boxes = Qnil; |
| 3645 dump_add_weak_object_chain (&Vall_weak_boxes); | |
| 3646 | |
| 428 | 3647 #ifdef DEBUG_XEMACS |
| 3648 DEFVAR_BOOL ("debug-issue-ebola-notices", &debug_issue_ebola_notices /* | |
| 3649 If non-zero, note when your code may be suffering from char-int confoundance. | |
| 3650 That is to say, if XEmacs encounters a usage of `eq', `memq', `equal', | |
| 3651 etc. where an int and a char with the same value are being compared, | |
| 3652 it will issue a notice on stderr to this effect, along with a backtrace. | |
| 3653 In such situations, the result would be different in XEmacs 19 versus | |
| 3654 XEmacs 20, and you probably don't want this. | |
| 3655 | |
| 3656 Note that in order to see these notices, you have to byte compile your | |
| 3657 code under XEmacs 20 -- any code byte-compiled under XEmacs 19 will | |
| 3658 have its chars and ints all confounded in the byte code, making it | |
| 3659 impossible to accurately determine Ebola infection. | |
| 3660 */ ); | |
| 3661 | |
| 3662 debug_issue_ebola_notices = 0; | |
| 3663 | |
| 3664 DEFVAR_INT ("debug-ebola-backtrace-length", | |
| 3665 &debug_ebola_backtrace_length /* | |
| 3666 Length (in stack frames) of short backtrace printed out in Ebola notices. | |
| 3667 See `debug-issue-ebola-notices'. | |
| 3668 */ ); | |
| 3669 debug_ebola_backtrace_length = 32; | |
| 3670 | |
| 3671 #endif /* DEBUG_XEMACS */ | |
| 3672 } |