1 /* Primitive operations on Lisp data types for GNU Emacs Lisp interpreter.
2 Copyright (C) 1985,86,88,93,94,95,97,98,99, 2000, 2001, 03, 2004
3 Free Software Foundation, Inc.
5 This file is part of GNU Emacs.
7 GNU Emacs is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 2, or (at your option)
12 GNU Emacs is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with GNU Emacs; see the file COPYING. If not, write to
19 the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
20 Boston, MA 02111-1307, USA. */
28 #include "character.h"
32 #include "syssignal.h"
38 /* If IEEE_FLOATING_POINT isn't defined, default it from FLT_*. */
39 #ifndef IEEE_FLOATING_POINT
40 #if (FLT_RADIX == 2 && FLT_MANT_DIG == 24 \
41 && FLT_MIN_EXP == -125 && FLT_MAX_EXP == 128)
42 #define IEEE_FLOATING_POINT 1
44 #define IEEE_FLOATING_POINT 0
48 /* Work around a problem that happens because math.h on hpux 7
49 defines two static variables--which, in Emacs, are not really static,
50 because `static' is defined as nothing. The problem is that they are
51 here, in floatfns.c, and in lread.c.
52 These macros prevent the name conflict. */
53 #if defined (HPUX) && !defined (HPUX8)
54 #define _MAXLDBL data_c_maxldbl
55 #define _NMAXLDBL data_c_nmaxldbl
61 extern double atof ();
64 Lisp_Object Qnil
, Qt
, Qquote
, Qlambda
, Qsubr
, Qunbound
;
65 Lisp_Object Qerror_conditions
, Qerror_message
, Qtop_level
;
66 Lisp_Object Qerror
, Qquit
, Qwrong_type_argument
, Qargs_out_of_range
;
67 Lisp_Object Qvoid_variable
, Qvoid_function
, Qcyclic_function_indirection
;
68 Lisp_Object Qcyclic_variable_indirection
, Qcircular_list
;
69 Lisp_Object Qsetting_constant
, Qinvalid_read_syntax
;
70 Lisp_Object Qinvalid_function
, Qwrong_number_of_arguments
, Qno_catch
;
71 Lisp_Object Qend_of_file
, Qarith_error
, Qmark_inactive
;
72 Lisp_Object Qbeginning_of_buffer
, Qend_of_buffer
, Qbuffer_read_only
;
73 Lisp_Object Qtext_read_only
;
75 Lisp_Object Qintegerp
, Qnatnump
, Qwholenump
, Qsymbolp
, Qlistp
, Qconsp
;
76 Lisp_Object Qstringp
, Qarrayp
, Qsequencep
, Qbufferp
;
77 Lisp_Object Qchar_or_string_p
, Qmarkerp
, Qinteger_or_marker_p
, Qvectorp
;
78 Lisp_Object Qbuffer_or_string_p
, Qkeywordp
;
79 Lisp_Object Qboundp
, Qfboundp
;
80 Lisp_Object Qchar_table_p
, Qvector_or_char_table_p
;
83 Lisp_Object Qad_advice_info
, Qad_activate_internal
;
85 Lisp_Object Qrange_error
, Qdomain_error
, Qsingularity_error
;
86 Lisp_Object Qoverflow_error
, Qunderflow_error
;
89 Lisp_Object Qnumberp
, Qnumber_or_marker_p
;
92 static Lisp_Object Qsymbol
, Qstring
, Qcons
, Qmarker
, Qoverlay
;
93 static Lisp_Object Qfloat
, Qwindow_configuration
, Qwindow
;
95 static Lisp_Object Qcompiled_function
, Qbuffer
, Qframe
, Qvector
;
96 static Lisp_Object Qchar_table
, Qbool_vector
, Qhash_table
;
97 static Lisp_Object Qsubrp
, Qmany
, Qunevalled
;
99 static Lisp_Object swap_in_symval_forwarding
P_ ((Lisp_Object
, Lisp_Object
));
101 Lisp_Object Vmost_positive_fixnum
, Vmost_negative_fixnum
;
105 circular_list_error (list
)
108 Fsignal (Qcircular_list
, list
);
113 wrong_type_argument (predicate
, value
)
114 register Lisp_Object predicate
, value
;
116 register Lisp_Object tem
;
119 /* If VALUE is not even a valid Lisp object, abort here
120 where we can get a backtrace showing where it came from. */
121 if ((unsigned int) XGCTYPE (value
) >= Lisp_Type_Limit
)
124 value
= Fsignal (Qwrong_type_argument
, Fcons (predicate
, Fcons (value
, Qnil
)));
125 tem
= call1 (predicate
, value
);
134 error ("Attempt to modify read-only object");
138 args_out_of_range (a1
, a2
)
142 Fsignal (Qargs_out_of_range
, Fcons (a1
, Fcons (a2
, Qnil
)));
146 args_out_of_range_3 (a1
, a2
, a3
)
147 Lisp_Object a1
, a2
, a3
;
150 Fsignal (Qargs_out_of_range
, Fcons (a1
, Fcons (a2
, Fcons (a3
, Qnil
))));
153 /* On some machines, XINT needs a temporary location.
154 Here it is, in case it is needed. */
156 int sign_extend_temp
;
158 /* On a few machines, XINT can only be done by calling this. */
161 sign_extend_lisp_int (num
)
164 if (num
& (((EMACS_INT
) 1) << (VALBITS
- 1)))
165 return num
| (((EMACS_INT
) (-1)) << VALBITS
);
167 return num
& ((((EMACS_INT
) 1) << VALBITS
) - 1);
170 /* Data type predicates */
172 DEFUN ("eq", Feq
, Seq
, 2, 2, 0,
173 doc
: /* Return t if the two args are the same Lisp object. */)
175 Lisp_Object obj1
, obj2
;
182 DEFUN ("null", Fnull
, Snull
, 1, 1, 0,
183 doc
: /* Return t if OBJECT is nil. */)
192 DEFUN ("type-of", Ftype_of
, Stype_of
, 1, 1, 0,
193 doc
: /* Return a symbol representing the type of OBJECT.
194 The symbol returned names the object's basic type;
195 for example, (type-of 1) returns `integer'. */)
199 switch (XGCTYPE (object
))
214 switch (XMISCTYPE (object
))
216 case Lisp_Misc_Marker
:
218 case Lisp_Misc_Overlay
:
220 case Lisp_Misc_Float
:
225 case Lisp_Vectorlike
:
226 if (GC_WINDOW_CONFIGURATIONP (object
))
227 return Qwindow_configuration
;
228 if (GC_PROCESSP (object
))
230 if (GC_WINDOWP (object
))
232 if (GC_SUBRP (object
))
234 if (GC_COMPILEDP (object
))
235 return Qcompiled_function
;
236 if (GC_BUFFERP (object
))
238 if (GC_CHAR_TABLE_P (object
))
240 if (GC_BOOL_VECTOR_P (object
))
242 if (GC_FRAMEP (object
))
244 if (GC_HASH_TABLE_P (object
))
256 DEFUN ("consp", Fconsp
, Sconsp
, 1, 1, 0,
257 doc
: /* Return t if OBJECT is a cons cell. */)
266 DEFUN ("atom", Fatom
, Satom
, 1, 1, 0,
267 doc
: /* Return t if OBJECT is not a cons cell. This includes nil. */)
276 DEFUN ("listp", Flistp
, Slistp
, 1, 1, 0,
277 doc
: /* Return t if OBJECT is a list. This includes nil. */)
281 if (CONSP (object
) || NILP (object
))
286 DEFUN ("nlistp", Fnlistp
, Snlistp
, 1, 1, 0,
287 doc
: /* Return t if OBJECT is not a list. Lists include nil. */)
291 if (CONSP (object
) || NILP (object
))
296 DEFUN ("symbolp", Fsymbolp
, Ssymbolp
, 1, 1, 0,
297 doc
: /* Return t if OBJECT is a symbol. */)
301 if (SYMBOLP (object
))
306 /* Define this in C to avoid unnecessarily consing up the symbol
308 DEFUN ("keywordp", Fkeywordp
, Skeywordp
, 1, 1, 0,
309 doc
: /* Return t if OBJECT is a keyword.
310 This means that it is a symbol with a print name beginning with `:'
311 interned in the initial obarray. */)
316 && SREF (SYMBOL_NAME (object
), 0) == ':'
317 && SYMBOL_INTERNED_IN_INITIAL_OBARRAY_P (object
))
322 DEFUN ("vectorp", Fvectorp
, Svectorp
, 1, 1, 0,
323 doc
: /* Return t if OBJECT is a vector. */)
327 if (VECTORP (object
))
332 DEFUN ("stringp", Fstringp
, Sstringp
, 1, 1, 0,
333 doc
: /* Return t if OBJECT is a string. */)
337 if (STRINGP (object
))
342 DEFUN ("multibyte-string-p", Fmultibyte_string_p
, Smultibyte_string_p
,
344 doc
: /* Return t if OBJECT is a multibyte string. */)
348 if (STRINGP (object
) && STRING_MULTIBYTE (object
))
353 DEFUN ("char-table-p", Fchar_table_p
, Schar_table_p
, 1, 1, 0,
354 doc
: /* Return t if OBJECT is a char-table. */)
358 if (CHAR_TABLE_P (object
))
363 DEFUN ("vector-or-char-table-p", Fvector_or_char_table_p
,
364 Svector_or_char_table_p
, 1, 1, 0,
365 doc
: /* Return t if OBJECT is a char-table or vector. */)
369 if (VECTORP (object
) || CHAR_TABLE_P (object
))
374 DEFUN ("bool-vector-p", Fbool_vector_p
, Sbool_vector_p
, 1, 1, 0,
375 doc
: /* Return t if OBJECT is a bool-vector. */)
379 if (BOOL_VECTOR_P (object
))
384 DEFUN ("arrayp", Farrayp
, Sarrayp
, 1, 1, 0,
385 doc
: /* Return t if OBJECT is an array (string or vector). */)
389 if (VECTORP (object
) || STRINGP (object
)
390 || CHAR_TABLE_P (object
) || BOOL_VECTOR_P (object
))
395 DEFUN ("sequencep", Fsequencep
, Ssequencep
, 1, 1, 0,
396 doc
: /* Return t if OBJECT is a sequence (list or array). */)
398 register Lisp_Object object
;
400 if (CONSP (object
) || NILP (object
) || VECTORP (object
) || STRINGP (object
)
401 || CHAR_TABLE_P (object
) || BOOL_VECTOR_P (object
))
406 DEFUN ("bufferp", Fbufferp
, Sbufferp
, 1, 1, 0,
407 doc
: /* Return t if OBJECT is an editor buffer. */)
411 if (BUFFERP (object
))
416 DEFUN ("markerp", Fmarkerp
, Smarkerp
, 1, 1, 0,
417 doc
: /* Return t if OBJECT is a marker (editor pointer). */)
421 if (MARKERP (object
))
426 DEFUN ("subrp", Fsubrp
, Ssubrp
, 1, 1, 0,
427 doc
: /* Return t if OBJECT is a built-in function. */)
436 DEFUN ("byte-code-function-p", Fbyte_code_function_p
, Sbyte_code_function_p
,
438 doc
: /* Return t if OBJECT is a byte-compiled function object. */)
442 if (COMPILEDP (object
))
447 DEFUN ("char-or-string-p", Fchar_or_string_p
, Schar_or_string_p
, 1, 1, 0,
448 doc
: /* Return t if OBJECT is a character (an integer) or a string. */)
450 register Lisp_Object object
;
452 if (CHARACTERP (object
) || STRINGP (object
))
457 DEFUN ("integerp", Fintegerp
, Sintegerp
, 1, 1, 0,
458 doc
: /* Return t if OBJECT is an integer. */)
462 if (INTEGERP (object
))
467 DEFUN ("integer-or-marker-p", Finteger_or_marker_p
, Sinteger_or_marker_p
, 1, 1, 0,
468 doc
: /* Return t if OBJECT is an integer or a marker (editor pointer). */)
470 register Lisp_Object object
;
472 if (MARKERP (object
) || INTEGERP (object
))
477 DEFUN ("natnump", Fnatnump
, Snatnump
, 1, 1, 0,
478 doc
: /* Return t if OBJECT is a nonnegative integer. */)
482 if (NATNUMP (object
))
487 DEFUN ("numberp", Fnumberp
, Snumberp
, 1, 1, 0,
488 doc
: /* Return t if OBJECT is a number (floating point or integer). */)
492 if (NUMBERP (object
))
498 DEFUN ("number-or-marker-p", Fnumber_or_marker_p
,
499 Snumber_or_marker_p
, 1, 1, 0,
500 doc
: /* Return t if OBJECT is a number or a marker. */)
504 if (NUMBERP (object
) || MARKERP (object
))
509 DEFUN ("floatp", Ffloatp
, Sfloatp
, 1, 1, 0,
510 doc
: /* Return t if OBJECT is a floating point number. */)
520 /* Extract and set components of lists */
522 DEFUN ("car", Fcar
, Scar
, 1, 1, 0,
523 doc
: /* Return the car of LIST. If arg is nil, return nil.
524 Error if arg is not nil and not a cons cell. See also `car-safe'. */)
526 register Lisp_Object list
;
532 else if (EQ (list
, Qnil
))
535 list
= wrong_type_argument (Qlistp
, list
);
539 DEFUN ("car-safe", Fcar_safe
, Scar_safe
, 1, 1, 0,
540 doc
: /* Return the car of OBJECT if it is a cons cell, or else nil. */)
545 return XCAR (object
);
550 DEFUN ("cdr", Fcdr
, Scdr
, 1, 1, 0,
551 doc
: /* Return the cdr of LIST. If arg is nil, return nil.
552 Error if arg is not nil and not a cons cell. See also `cdr-safe'. */)
554 register Lisp_Object list
;
560 else if (EQ (list
, Qnil
))
563 list
= wrong_type_argument (Qlistp
, list
);
567 DEFUN ("cdr-safe", Fcdr_safe
, Scdr_safe
, 1, 1, 0,
568 doc
: /* Return the cdr of OBJECT if it is a cons cell, or else nil. */)
573 return XCDR (object
);
578 DEFUN ("setcar", Fsetcar
, Ssetcar
, 2, 2, 0,
579 doc
: /* Set the car of CELL to be NEWCAR. Returns NEWCAR. */)
581 register Lisp_Object cell
, newcar
;
584 cell
= wrong_type_argument (Qconsp
, cell
);
587 XSETCAR (cell
, newcar
);
591 DEFUN ("setcdr", Fsetcdr
, Ssetcdr
, 2, 2, 0,
592 doc
: /* Set the cdr of CELL to be NEWCDR. Returns NEWCDR. */)
594 register Lisp_Object cell
, newcdr
;
597 cell
= wrong_type_argument (Qconsp
, cell
);
600 XSETCDR (cell
, newcdr
);
604 /* Extract and set components of symbols */
606 DEFUN ("boundp", Fboundp
, Sboundp
, 1, 1, 0,
607 doc
: /* Return t if SYMBOL's value is not void. */)
609 register Lisp_Object symbol
;
611 Lisp_Object valcontents
;
612 CHECK_SYMBOL (symbol
);
614 valcontents
= SYMBOL_VALUE (symbol
);
616 if (BUFFER_LOCAL_VALUEP (valcontents
)
617 || SOME_BUFFER_LOCAL_VALUEP (valcontents
))
618 valcontents
= swap_in_symval_forwarding (symbol
, valcontents
);
620 return (EQ (valcontents
, Qunbound
) ? Qnil
: Qt
);
623 DEFUN ("fboundp", Ffboundp
, Sfboundp
, 1, 1, 0,
624 doc
: /* Return t if SYMBOL's function definition is not void. */)
626 register Lisp_Object symbol
;
628 CHECK_SYMBOL (symbol
);
629 return (EQ (XSYMBOL (symbol
)->function
, Qunbound
) ? Qnil
: Qt
);
632 DEFUN ("makunbound", Fmakunbound
, Smakunbound
, 1, 1, 0,
633 doc
: /* Make SYMBOL's value be void.
636 register Lisp_Object symbol
;
638 CHECK_SYMBOL (symbol
);
639 if (XSYMBOL (symbol
)->constant
)
640 return Fsignal (Qsetting_constant
, Fcons (symbol
, Qnil
));
641 Fset (symbol
, Qunbound
);
645 DEFUN ("fmakunbound", Ffmakunbound
, Sfmakunbound
, 1, 1, 0,
646 doc
: /* Make SYMBOL's function definition be void.
649 register Lisp_Object symbol
;
651 CHECK_SYMBOL (symbol
);
652 if (NILP (symbol
) || EQ (symbol
, Qt
))
653 return Fsignal (Qsetting_constant
, Fcons (symbol
, Qnil
));
654 XSYMBOL (symbol
)->function
= Qunbound
;
658 DEFUN ("symbol-function", Fsymbol_function
, Ssymbol_function
, 1, 1, 0,
659 doc
: /* Return SYMBOL's function definition. Error if that is void. */)
661 register Lisp_Object symbol
;
663 CHECK_SYMBOL (symbol
);
664 if (EQ (XSYMBOL (symbol
)->function
, Qunbound
))
665 return Fsignal (Qvoid_function
, Fcons (symbol
, Qnil
));
666 return XSYMBOL (symbol
)->function
;
669 DEFUN ("symbol-plist", Fsymbol_plist
, Ssymbol_plist
, 1, 1, 0,
670 doc
: /* Return SYMBOL's property list. */)
672 register Lisp_Object symbol
;
674 CHECK_SYMBOL (symbol
);
675 return XSYMBOL (symbol
)->plist
;
678 DEFUN ("symbol-name", Fsymbol_name
, Ssymbol_name
, 1, 1, 0,
679 doc
: /* Return SYMBOL's name, a string. */)
681 register Lisp_Object symbol
;
683 register Lisp_Object name
;
685 CHECK_SYMBOL (symbol
);
686 name
= SYMBOL_NAME (symbol
);
690 DEFUN ("fset", Ffset
, Sfset
, 2, 2, 0,
691 doc
: /* Set SYMBOL's function definition to DEFINITION, and return DEFINITION. */)
693 register Lisp_Object symbol
, definition
;
695 CHECK_SYMBOL (symbol
);
696 if (NILP (symbol
) || EQ (symbol
, Qt
))
697 return Fsignal (Qsetting_constant
, Fcons (symbol
, Qnil
));
698 if (!NILP (Vautoload_queue
) && !EQ (XSYMBOL (symbol
)->function
, Qunbound
))
699 Vautoload_queue
= Fcons (Fcons (symbol
, XSYMBOL (symbol
)->function
),
701 XSYMBOL (symbol
)->function
= definition
;
702 /* Handle automatic advice activation */
703 if (CONSP (XSYMBOL (symbol
)->plist
) && !NILP (Fget (symbol
, Qad_advice_info
)))
705 call2 (Qad_activate_internal
, symbol
, Qnil
);
706 definition
= XSYMBOL (symbol
)->function
;
711 extern Lisp_Object Qfunction_documentation
;
713 DEFUN ("defalias", Fdefalias
, Sdefalias
, 2, 3, 0,
714 doc
: /* Set SYMBOL's function definition to DEFINITION, and return DEFINITION.
715 Associates the function with the current load file, if any.
716 The optional third argument DOCSTRING specifies the documentation string
717 for SYMBOL; if it is omitted or nil, SYMBOL uses the documentation string
718 determined by DEFINITION. */)
719 (symbol
, definition
, docstring
)
720 register Lisp_Object symbol
, definition
, docstring
;
722 if (CONSP (XSYMBOL (symbol
)->function
)
723 && EQ (XCAR (XSYMBOL (symbol
)->function
), Qautoload
))
724 LOADHIST_ATTACH (Fcons (Qt
, symbol
));
725 definition
= Ffset (symbol
, definition
);
726 LOADHIST_ATTACH (symbol
);
727 if (!NILP (docstring
))
728 Fput (symbol
, Qfunction_documentation
, docstring
);
732 DEFUN ("setplist", Fsetplist
, Ssetplist
, 2, 2, 0,
733 doc
: /* Set SYMBOL's property list to NEWPLIST, and return NEWPLIST. */)
735 register Lisp_Object symbol
, newplist
;
737 CHECK_SYMBOL (symbol
);
738 XSYMBOL (symbol
)->plist
= newplist
;
742 DEFUN ("subr-arity", Fsubr_arity
, Ssubr_arity
, 1, 1, 0,
743 doc
: /* Return minimum and maximum number of args allowed for SUBR.
744 SUBR must be a built-in function.
745 The returned value is a pair (MIN . MAX). MIN is the minimum number
746 of args. MAX is the maximum number or the symbol `many', for a
747 function with `&rest' args, or `unevalled' for a special form. */)
751 short minargs
, maxargs
;
753 wrong_type_argument (Qsubrp
, subr
);
754 minargs
= XSUBR (subr
)->min_args
;
755 maxargs
= XSUBR (subr
)->max_args
;
757 return Fcons (make_number (minargs
), Qmany
);
758 else if (maxargs
== UNEVALLED
)
759 return Fcons (make_number (minargs
), Qunevalled
);
761 return Fcons (make_number (minargs
), make_number (maxargs
));
764 DEFUN ("subr-name", Fsubr_name
, Ssubr_name
, 1, 1, 0,
765 doc
: /* Return name of subroutine SUBR.
766 SUBR must be a built-in function. */)
772 wrong_type_argument (Qsubrp
, subr
);
773 name
= XSUBR (subr
)->symbol_name
;
774 return make_string (name
, strlen (name
));
777 DEFUN ("interactive-form", Finteractive_form
, Sinteractive_form
, 1, 1, 0,
778 doc
: /* Return the interactive form of CMD or nil if none.
779 CMD must be a command. Value, if non-nil, is a list
780 \(interactive SPEC). */)
784 Lisp_Object fun
= indirect_function (cmd
);
788 if (XSUBR (fun
)->prompt
)
789 return list2 (Qinteractive
, build_string (XSUBR (fun
)->prompt
));
791 else if (COMPILEDP (fun
))
793 if ((ASIZE (fun
) & PSEUDOVECTOR_SIZE_MASK
) > COMPILED_INTERACTIVE
)
794 return list2 (Qinteractive
, AREF (fun
, COMPILED_INTERACTIVE
));
796 else if (CONSP (fun
))
798 Lisp_Object funcar
= XCAR (fun
);
799 if (EQ (funcar
, Qlambda
))
800 return Fassq (Qinteractive
, Fcdr (XCDR (fun
)));
801 else if (EQ (funcar
, Qautoload
))
805 do_autoload (fun
, cmd
);
807 return Finteractive_form (cmd
);
814 /***********************************************************************
815 Getting and Setting Values of Symbols
816 ***********************************************************************/
818 /* Return the symbol holding SYMBOL's value. Signal
819 `cyclic-variable-indirection' if SYMBOL's chain of variable
820 indirections contains a loop. */
823 indirect_variable (symbol
)
826 Lisp_Object tortoise
, hare
;
828 hare
= tortoise
= symbol
;
830 while (XSYMBOL (hare
)->indirect_variable
)
832 hare
= XSYMBOL (hare
)->value
;
833 if (!XSYMBOL (hare
)->indirect_variable
)
836 hare
= XSYMBOL (hare
)->value
;
837 tortoise
= XSYMBOL (tortoise
)->value
;
839 if (EQ (hare
, tortoise
))
840 Fsignal (Qcyclic_variable_indirection
, Fcons (symbol
, Qnil
));
847 DEFUN ("indirect-variable", Findirect_variable
, Sindirect_variable
, 1, 1, 0,
848 doc
: /* Return the variable at the end of OBJECT's variable chain.
849 If OBJECT is a symbol, follow all variable indirections and return the final
850 variable. If OBJECT is not a symbol, just return it.
851 Signal a cyclic-variable-indirection error if there is a loop in the
852 variable chain of symbols. */)
856 if (SYMBOLP (object
))
857 object
= indirect_variable (object
);
862 /* Given the raw contents of a symbol value cell,
863 return the Lisp value of the symbol.
864 This does not handle buffer-local variables; use
865 swap_in_symval_forwarding for that. */
868 do_symval_forwarding (valcontents
)
869 register Lisp_Object valcontents
;
871 register Lisp_Object val
;
873 if (MISCP (valcontents
))
874 switch (XMISCTYPE (valcontents
))
876 case Lisp_Misc_Intfwd
:
877 XSETINT (val
, *XINTFWD (valcontents
)->intvar
);
880 case Lisp_Misc_Boolfwd
:
881 return (*XBOOLFWD (valcontents
)->boolvar
? Qt
: Qnil
);
883 case Lisp_Misc_Objfwd
:
884 return *XOBJFWD (valcontents
)->objvar
;
886 case Lisp_Misc_Buffer_Objfwd
:
887 offset
= XBUFFER_OBJFWD (valcontents
)->offset
;
888 return PER_BUFFER_VALUE (current_buffer
, offset
);
890 case Lisp_Misc_Kboard_Objfwd
:
891 offset
= XKBOARD_OBJFWD (valcontents
)->offset
;
892 return *(Lisp_Object
*)(offset
+ (char *)current_kboard
);
897 /* Store NEWVAL into SYMBOL, where VALCONTENTS is found in the value cell
898 of SYMBOL. If SYMBOL is buffer-local, VALCONTENTS should be the
899 buffer-independent contents of the value cell: forwarded just one
900 step past the buffer-localness.
902 BUF non-zero means set the value in buffer BUF instead of the
903 current buffer. This only plays a role for per-buffer variables. */
906 store_symval_forwarding (symbol
, valcontents
, newval
, buf
)
908 register Lisp_Object valcontents
, newval
;
913 switch (SWITCH_ENUM_CAST (XTYPE (valcontents
)))
916 switch (XMISCTYPE (valcontents
))
918 case Lisp_Misc_Intfwd
:
919 CHECK_NUMBER (newval
);
920 *XINTFWD (valcontents
)->intvar
= XINT (newval
);
921 if (*XINTFWD (valcontents
)->intvar
!= XINT (newval
))
922 error ("Value out of range for variable `%s'",
923 SDATA (SYMBOL_NAME (symbol
)));
926 case Lisp_Misc_Boolfwd
:
927 *XBOOLFWD (valcontents
)->boolvar
= NILP (newval
) ? 0 : 1;
930 case Lisp_Misc_Objfwd
:
931 *XOBJFWD (valcontents
)->objvar
= newval
;
933 /* If this variable is a default for something stored
934 in the buffer itself, such as default-fill-column,
935 find the buffers that don't have local values for it
937 if (XOBJFWD (valcontents
)->objvar
> (Lisp_Object
*) &buffer_defaults
938 && XOBJFWD (valcontents
)->objvar
< (Lisp_Object
*) (&buffer_defaults
+ 1))
940 int offset
= ((char *) XOBJFWD (valcontents
)->objvar
941 - (char *) &buffer_defaults
);
942 int idx
= PER_BUFFER_IDX (offset
);
944 Lisp_Object tail
, buf
;
949 for (tail
= Vbuffer_alist
; CONSP (tail
); tail
= XCDR (tail
))
954 buf
= Fcdr (XCAR (tail
));
955 if (!BUFFERP (buf
)) continue;
958 if (! PER_BUFFER_VALUE_P (b
, idx
))
959 PER_BUFFER_VALUE (b
, offset
) = newval
;
964 case Lisp_Misc_Buffer_Objfwd
:
966 int offset
= XBUFFER_OBJFWD (valcontents
)->offset
;
969 type
= PER_BUFFER_TYPE (offset
);
970 if (! NILP (type
) && ! NILP (newval
)
971 && XTYPE (newval
) != XINT (type
))
972 buffer_slot_type_mismatch (offset
);
975 buf
= current_buffer
;
976 PER_BUFFER_VALUE (buf
, offset
) = newval
;
980 case Lisp_Misc_Kboard_Objfwd
:
982 char *base
= (char *) current_kboard
;
983 char *p
= base
+ XKBOARD_OBJFWD (valcontents
)->offset
;
984 *(Lisp_Object
*) p
= newval
;
995 valcontents
= SYMBOL_VALUE (symbol
);
996 if (BUFFER_LOCAL_VALUEP (valcontents
)
997 || SOME_BUFFER_LOCAL_VALUEP (valcontents
))
998 XBUFFER_LOCAL_VALUE (valcontents
)->realvalue
= newval
;
1000 SET_SYMBOL_VALUE (symbol
, newval
);
1004 /* Set up SYMBOL to refer to its global binding.
1005 This makes it safe to alter the status of other bindings. */
1008 swap_in_global_binding (symbol
)
1011 Lisp_Object valcontents
, cdr
;
1013 valcontents
= SYMBOL_VALUE (symbol
);
1014 if (!BUFFER_LOCAL_VALUEP (valcontents
)
1015 && !SOME_BUFFER_LOCAL_VALUEP (valcontents
))
1017 cdr
= XBUFFER_LOCAL_VALUE (valcontents
)->cdr
;
1019 /* Unload the previously loaded binding. */
1020 Fsetcdr (XCAR (cdr
),
1021 do_symval_forwarding (XBUFFER_LOCAL_VALUE (valcontents
)->realvalue
));
1023 /* Select the global binding in the symbol. */
1025 store_symval_forwarding (symbol
, valcontents
, XCDR (cdr
), NULL
);
1027 /* Indicate that the global binding is set up now. */
1028 XBUFFER_LOCAL_VALUE (valcontents
)->frame
= Qnil
;
1029 XBUFFER_LOCAL_VALUE (valcontents
)->buffer
= Qnil
;
1030 XBUFFER_LOCAL_VALUE (valcontents
)->found_for_frame
= 0;
1031 XBUFFER_LOCAL_VALUE (valcontents
)->found_for_buffer
= 0;
1034 /* Set up the buffer-local symbol SYMBOL for validity in the current buffer.
1035 VALCONTENTS is the contents of its value cell,
1036 which points to a struct Lisp_Buffer_Local_Value.
1038 Return the value forwarded one step past the buffer-local stage.
1039 This could be another forwarding pointer. */
1042 swap_in_symval_forwarding (symbol
, valcontents
)
1043 Lisp_Object symbol
, valcontents
;
1045 register Lisp_Object tem1
;
1047 tem1
= XBUFFER_LOCAL_VALUE (valcontents
)->buffer
;
1050 || current_buffer
!= XBUFFER (tem1
)
1051 || (XBUFFER_LOCAL_VALUE (valcontents
)->check_frame
1052 && ! EQ (selected_frame
, XBUFFER_LOCAL_VALUE (valcontents
)->frame
)))
1054 if (XSYMBOL (symbol
)->indirect_variable
)
1055 symbol
= indirect_variable (symbol
);
1057 /* Unload the previously loaded binding. */
1058 tem1
= XCAR (XBUFFER_LOCAL_VALUE (valcontents
)->cdr
);
1060 do_symval_forwarding (XBUFFER_LOCAL_VALUE (valcontents
)->realvalue
));
1061 /* Choose the new binding. */
1062 tem1
= assq_no_quit (symbol
, current_buffer
->local_var_alist
);
1063 XBUFFER_LOCAL_VALUE (valcontents
)->found_for_frame
= 0;
1064 XBUFFER_LOCAL_VALUE (valcontents
)->found_for_buffer
= 0;
1067 if (XBUFFER_LOCAL_VALUE (valcontents
)->check_frame
)
1068 tem1
= assq_no_quit (symbol
, XFRAME (selected_frame
)->param_alist
);
1070 XBUFFER_LOCAL_VALUE (valcontents
)->found_for_frame
= 1;
1072 tem1
= XBUFFER_LOCAL_VALUE (valcontents
)->cdr
;
1075 XBUFFER_LOCAL_VALUE (valcontents
)->found_for_buffer
= 1;
1077 /* Load the new binding. */
1078 XSETCAR (XBUFFER_LOCAL_VALUE (valcontents
)->cdr
, tem1
);
1079 XSETBUFFER (XBUFFER_LOCAL_VALUE (valcontents
)->buffer
, current_buffer
);
1080 XBUFFER_LOCAL_VALUE (valcontents
)->frame
= selected_frame
;
1081 store_symval_forwarding (symbol
,
1082 XBUFFER_LOCAL_VALUE (valcontents
)->realvalue
,
1085 return XBUFFER_LOCAL_VALUE (valcontents
)->realvalue
;
1088 /* Find the value of a symbol, returning Qunbound if it's not bound.
1089 This is helpful for code which just wants to get a variable's value
1090 if it has one, without signaling an error.
1091 Note that it must not be possible to quit
1092 within this function. Great care is required for this. */
1095 find_symbol_value (symbol
)
1098 register Lisp_Object valcontents
;
1099 register Lisp_Object val
;
1101 CHECK_SYMBOL (symbol
);
1102 valcontents
= SYMBOL_VALUE (symbol
);
1104 if (BUFFER_LOCAL_VALUEP (valcontents
)
1105 || SOME_BUFFER_LOCAL_VALUEP (valcontents
))
1106 valcontents
= swap_in_symval_forwarding (symbol
, valcontents
);
1108 if (MISCP (valcontents
))
1110 switch (XMISCTYPE (valcontents
))
1112 case Lisp_Misc_Intfwd
:
1113 XSETINT (val
, *XINTFWD (valcontents
)->intvar
);
1116 case Lisp_Misc_Boolfwd
:
1117 return (*XBOOLFWD (valcontents
)->boolvar
? Qt
: Qnil
);
1119 case Lisp_Misc_Objfwd
:
1120 return *XOBJFWD (valcontents
)->objvar
;
1122 case Lisp_Misc_Buffer_Objfwd
:
1123 return PER_BUFFER_VALUE (current_buffer
,
1124 XBUFFER_OBJFWD (valcontents
)->offset
);
1126 case Lisp_Misc_Kboard_Objfwd
:
1127 return *(Lisp_Object
*)(XKBOARD_OBJFWD (valcontents
)->offset
1128 + (char *)current_kboard
);
1135 DEFUN ("symbol-value", Fsymbol_value
, Ssymbol_value
, 1, 1, 0,
1136 doc
: /* Return SYMBOL's value. Error if that is void. */)
1142 val
= find_symbol_value (symbol
);
1143 if (EQ (val
, Qunbound
))
1144 return Fsignal (Qvoid_variable
, Fcons (symbol
, Qnil
));
1149 DEFUN ("set", Fset
, Sset
, 2, 2, 0,
1150 doc
: /* Set SYMBOL's value to NEWVAL, and return NEWVAL. */)
1152 register Lisp_Object symbol
, newval
;
1154 return set_internal (symbol
, newval
, current_buffer
, 0);
1157 /* Return 1 if SYMBOL currently has a let-binding
1158 which was made in the buffer that is now current. */
1161 let_shadows_buffer_binding_p (symbol
)
1164 volatile struct specbinding
*p
;
1166 for (p
= specpdl_ptr
- 1; p
>= specpdl
; p
--)
1168 && CONSP (p
->symbol
))
1170 Lisp_Object let_bound_symbol
= XCAR (p
->symbol
);
1171 if ((EQ (symbol
, let_bound_symbol
)
1172 || (XSYMBOL (let_bound_symbol
)->indirect_variable
1173 && EQ (symbol
, indirect_variable (let_bound_symbol
))))
1174 && XBUFFER (XCDR (XCDR (p
->symbol
))) == current_buffer
)
1178 return p
>= specpdl
;
1181 /* Store the value NEWVAL into SYMBOL.
1182 If buffer-locality is an issue, BUF specifies which buffer to use.
1183 (0 stands for the current buffer.)
1185 If BINDFLAG is zero, then if this symbol is supposed to become
1186 local in every buffer where it is set, then we make it local.
1187 If BINDFLAG is nonzero, we don't do that. */
1190 set_internal (symbol
, newval
, buf
, bindflag
)
1191 register Lisp_Object symbol
, newval
;
1195 int voide
= EQ (newval
, Qunbound
);
1197 register Lisp_Object valcontents
, innercontents
, tem1
, current_alist_element
;
1200 buf
= current_buffer
;
1202 /* If restoring in a dead buffer, do nothing. */
1203 if (NILP (buf
->name
))
1206 CHECK_SYMBOL (symbol
);
1207 if (SYMBOL_CONSTANT_P (symbol
)
1208 && (NILP (Fkeywordp (symbol
))
1209 || !EQ (newval
, SYMBOL_VALUE (symbol
))))
1210 return Fsignal (Qsetting_constant
, Fcons (symbol
, Qnil
));
1212 innercontents
= valcontents
= SYMBOL_VALUE (symbol
);
1214 if (BUFFER_OBJFWDP (valcontents
))
1216 int offset
= XBUFFER_OBJFWD (valcontents
)->offset
;
1217 int idx
= PER_BUFFER_IDX (offset
);
1220 && !let_shadows_buffer_binding_p (symbol
))
1221 SET_PER_BUFFER_VALUE_P (buf
, idx
, 1);
1223 else if (BUFFER_LOCAL_VALUEP (valcontents
)
1224 || SOME_BUFFER_LOCAL_VALUEP (valcontents
))
1226 /* valcontents is a struct Lisp_Buffer_Local_Value. */
1227 if (XSYMBOL (symbol
)->indirect_variable
)
1228 symbol
= indirect_variable (symbol
);
1230 /* What binding is loaded right now? */
1231 current_alist_element
1232 = XCAR (XBUFFER_LOCAL_VALUE (valcontents
)->cdr
);
1234 /* If the current buffer is not the buffer whose binding is
1235 loaded, or if there may be frame-local bindings and the frame
1236 isn't the right one, or if it's a Lisp_Buffer_Local_Value and
1237 the default binding is loaded, the loaded binding may be the
1239 if (!BUFFERP (XBUFFER_LOCAL_VALUE (valcontents
)->buffer
)
1240 || buf
!= XBUFFER (XBUFFER_LOCAL_VALUE (valcontents
)->buffer
)
1241 || (XBUFFER_LOCAL_VALUE (valcontents
)->check_frame
1242 && !EQ (selected_frame
, XBUFFER_LOCAL_VALUE (valcontents
)->frame
))
1243 || (BUFFER_LOCAL_VALUEP (valcontents
)
1244 && EQ (XCAR (current_alist_element
),
1245 current_alist_element
)))
1247 /* The currently loaded binding is not necessarily valid.
1248 We need to unload it, and choose a new binding. */
1250 /* Write out `realvalue' to the old loaded binding. */
1251 Fsetcdr (current_alist_element
,
1252 do_symval_forwarding (XBUFFER_LOCAL_VALUE (valcontents
)->realvalue
));
1254 /* Find the new binding. */
1255 tem1
= Fassq (symbol
, buf
->local_var_alist
);
1256 XBUFFER_LOCAL_VALUE (valcontents
)->found_for_buffer
= 1;
1257 XBUFFER_LOCAL_VALUE (valcontents
)->found_for_frame
= 0;
1261 /* This buffer still sees the default value. */
1263 /* If the variable is a Lisp_Some_Buffer_Local_Value,
1264 or if this is `let' rather than `set',
1265 make CURRENT-ALIST-ELEMENT point to itself,
1266 indicating that we're seeing the default value.
1267 Likewise if the variable has been let-bound
1268 in the current buffer. */
1269 if (bindflag
|| SOME_BUFFER_LOCAL_VALUEP (valcontents
)
1270 || let_shadows_buffer_binding_p (symbol
))
1272 XBUFFER_LOCAL_VALUE (valcontents
)->found_for_buffer
= 0;
1274 if (XBUFFER_LOCAL_VALUE (valcontents
)->check_frame
)
1275 tem1
= Fassq (symbol
,
1276 XFRAME (selected_frame
)->param_alist
);
1279 XBUFFER_LOCAL_VALUE (valcontents
)->found_for_frame
= 1;
1281 tem1
= XBUFFER_LOCAL_VALUE (valcontents
)->cdr
;
1283 /* If it's a Lisp_Buffer_Local_Value, being set not bound,
1284 and we're not within a let that was made for this buffer,
1285 create a new buffer-local binding for the variable.
1286 That means, give this buffer a new assoc for a local value
1287 and load that binding. */
1290 tem1
= Fcons (symbol
, XCDR (current_alist_element
));
1291 buf
->local_var_alist
1292 = Fcons (tem1
, buf
->local_var_alist
);
1296 /* Record which binding is now loaded. */
1297 XSETCAR (XBUFFER_LOCAL_VALUE (valcontents
)->cdr
,
1300 /* Set `buffer' and `frame' slots for thebinding now loaded. */
1301 XSETBUFFER (XBUFFER_LOCAL_VALUE (valcontents
)->buffer
, buf
);
1302 XBUFFER_LOCAL_VALUE (valcontents
)->frame
= selected_frame
;
1304 innercontents
= XBUFFER_LOCAL_VALUE (valcontents
)->realvalue
;
1307 /* If storing void (making the symbol void), forward only through
1308 buffer-local indicator, not through Lisp_Objfwd, etc. */
1310 store_symval_forwarding (symbol
, Qnil
, newval
, buf
);
1312 store_symval_forwarding (symbol
, innercontents
, newval
, buf
);
1314 /* If we just set a variable whose current binding is frame-local,
1315 store the new value in the frame parameter too. */
1317 if (BUFFER_LOCAL_VALUEP (valcontents
)
1318 || SOME_BUFFER_LOCAL_VALUEP (valcontents
))
1320 /* What binding is loaded right now? */
1321 current_alist_element
1322 = XCAR (XBUFFER_LOCAL_VALUE (valcontents
)->cdr
);
1324 /* If the current buffer is not the buffer whose binding is
1325 loaded, or if there may be frame-local bindings and the frame
1326 isn't the right one, or if it's a Lisp_Buffer_Local_Value and
1327 the default binding is loaded, the loaded binding may be the
1329 if (XBUFFER_LOCAL_VALUE (valcontents
)->found_for_frame
)
1330 XSETCDR (current_alist_element
, newval
);
1336 /* Access or set a buffer-local symbol's default value. */
1338 /* Return the default value of SYMBOL, but don't check for voidness.
1339 Return Qunbound if it is void. */
1342 default_value (symbol
)
1345 register Lisp_Object valcontents
;
1347 CHECK_SYMBOL (symbol
);
1348 valcontents
= SYMBOL_VALUE (symbol
);
1350 /* For a built-in buffer-local variable, get the default value
1351 rather than letting do_symval_forwarding get the current value. */
1352 if (BUFFER_OBJFWDP (valcontents
))
1354 int offset
= XBUFFER_OBJFWD (valcontents
)->offset
;
1355 if (PER_BUFFER_IDX (offset
) != 0)
1356 return PER_BUFFER_DEFAULT (offset
);
1359 /* Handle user-created local variables. */
1360 if (BUFFER_LOCAL_VALUEP (valcontents
)
1361 || SOME_BUFFER_LOCAL_VALUEP (valcontents
))
1363 /* If var is set up for a buffer that lacks a local value for it,
1364 the current value is nominally the default value.
1365 But the `realvalue' slot may be more up to date, since
1366 ordinary setq stores just that slot. So use that. */
1367 Lisp_Object current_alist_element
, alist_element_car
;
1368 current_alist_element
1369 = XCAR (XBUFFER_LOCAL_VALUE (valcontents
)->cdr
);
1370 alist_element_car
= XCAR (current_alist_element
);
1371 if (EQ (alist_element_car
, current_alist_element
))
1372 return do_symval_forwarding (XBUFFER_LOCAL_VALUE (valcontents
)->realvalue
);
1374 return XCDR (XBUFFER_LOCAL_VALUE (valcontents
)->cdr
);
1376 /* For other variables, get the current value. */
1377 return do_symval_forwarding (valcontents
);
1380 DEFUN ("default-boundp", Fdefault_boundp
, Sdefault_boundp
, 1, 1, 0,
1381 doc
: /* Return t if SYMBOL has a non-void default value.
1382 This is the value that is seen in buffers that do not have their own values
1383 for this variable. */)
1387 register Lisp_Object value
;
1389 value
= default_value (symbol
);
1390 return (EQ (value
, Qunbound
) ? Qnil
: Qt
);
1393 DEFUN ("default-value", Fdefault_value
, Sdefault_value
, 1, 1, 0,
1394 doc
: /* Return SYMBOL's default value.
1395 This is the value that is seen in buffers that do not have their own values
1396 for this variable. The default value is meaningful for variables with
1397 local bindings in certain buffers. */)
1401 register Lisp_Object value
;
1403 value
= default_value (symbol
);
1404 if (EQ (value
, Qunbound
))
1405 return Fsignal (Qvoid_variable
, Fcons (symbol
, Qnil
));
1409 DEFUN ("set-default", Fset_default
, Sset_default
, 2, 2, 0,
1410 doc
: /* Set SYMBOL's default value to VALUE. SYMBOL and VALUE are evaluated.
1411 The default value is seen in buffers that do not have their own values
1412 for this variable. */)
1414 Lisp_Object symbol
, value
;
1416 register Lisp_Object valcontents
, current_alist_element
, alist_element_buffer
;
1418 CHECK_SYMBOL (symbol
);
1419 valcontents
= SYMBOL_VALUE (symbol
);
1421 /* Handle variables like case-fold-search that have special slots
1422 in the buffer. Make them work apparently like Lisp_Buffer_Local_Value
1424 if (BUFFER_OBJFWDP (valcontents
))
1426 int offset
= XBUFFER_OBJFWD (valcontents
)->offset
;
1427 int idx
= PER_BUFFER_IDX (offset
);
1429 PER_BUFFER_DEFAULT (offset
) = value
;
1431 /* If this variable is not always local in all buffers,
1432 set it in the buffers that don't nominally have a local value. */
1437 for (b
= all_buffers
; b
; b
= b
->next
)
1438 if (!PER_BUFFER_VALUE_P (b
, idx
))
1439 PER_BUFFER_VALUE (b
, offset
) = value
;
1444 if (!BUFFER_LOCAL_VALUEP (valcontents
)
1445 && !SOME_BUFFER_LOCAL_VALUEP (valcontents
))
1446 return Fset (symbol
, value
);
1448 /* Store new value into the DEFAULT-VALUE slot. */
1449 XSETCDR (XBUFFER_LOCAL_VALUE (valcontents
)->cdr
, value
);
1451 /* If the default binding is now loaded, set the REALVALUE slot too. */
1452 current_alist_element
1453 = XCAR (XBUFFER_LOCAL_VALUE (valcontents
)->cdr
);
1454 alist_element_buffer
= Fcar (current_alist_element
);
1455 if (EQ (alist_element_buffer
, current_alist_element
))
1456 store_symval_forwarding (symbol
,
1457 XBUFFER_LOCAL_VALUE (valcontents
)->realvalue
,
1463 DEFUN ("setq-default", Fsetq_default
, Ssetq_default
, 2, UNEVALLED
, 0,
1464 doc
: /* Set the default value of variable VAR to VALUE.
1465 VAR, the variable name, is literal (not evaluated);
1466 VALUE is an expression: it is evaluated and its value returned.
1467 The default value of a variable is seen in buffers
1468 that do not have their own values for the variable.
1470 More generally, you can use multiple variables and values, as in
1471 (setq-default VAR VALUE VAR VALUE...)
1472 This sets each VAR's default value to the corresponding VALUE.
1473 The VALUE for the Nth VAR can refer to the new default values
1475 usage: (setq-default VAR VALUE [VAR VALUE...]) */)
1479 register Lisp_Object args_left
;
1480 register Lisp_Object val
, symbol
;
1481 struct gcpro gcpro1
;
1491 val
= Feval (Fcar (Fcdr (args_left
)));
1492 symbol
= XCAR (args_left
);
1493 Fset_default (symbol
, val
);
1494 args_left
= Fcdr (XCDR (args_left
));
1496 while (!NILP (args_left
));
1502 /* Lisp functions for creating and removing buffer-local variables. */
1504 DEFUN ("make-variable-buffer-local", Fmake_variable_buffer_local
, Smake_variable_buffer_local
,
1505 1, 1, "vMake Variable Buffer Local: ",
1506 doc
: /* Make VARIABLE become buffer-local whenever it is set.
1507 At any time, the value for the current buffer is in effect,
1508 unless the variable has never been set in this buffer,
1509 in which case the default value is in effect.
1510 Note that binding the variable with `let', or setting it while
1511 a `let'-style binding made in this buffer is in effect,
1512 does not make the variable buffer-local. Return VARIABLE.
1514 The function `default-value' gets the default value and `set-default' sets it. */)
1516 register Lisp_Object variable
;
1518 register Lisp_Object tem
, valcontents
, newval
;
1520 CHECK_SYMBOL (variable
);
1521 variable
= indirect_variable (variable
);
1523 valcontents
= SYMBOL_VALUE (variable
);
1524 if (EQ (variable
, Qnil
) || EQ (variable
, Qt
) || KBOARD_OBJFWDP (valcontents
))
1525 error ("Symbol %s may not be buffer-local", SDATA (SYMBOL_NAME (variable
)));
1527 if (BUFFER_LOCAL_VALUEP (valcontents
) || BUFFER_OBJFWDP (valcontents
))
1529 if (SOME_BUFFER_LOCAL_VALUEP (valcontents
))
1531 XMISCTYPE (SYMBOL_VALUE (variable
)) = Lisp_Misc_Buffer_Local_Value
;
1534 if (EQ (valcontents
, Qunbound
))
1535 SET_SYMBOL_VALUE (variable
, Qnil
);
1536 tem
= Fcons (Qnil
, Fsymbol_value (variable
));
1538 newval
= allocate_misc ();
1539 XMISCTYPE (newval
) = Lisp_Misc_Buffer_Local_Value
;
1540 XBUFFER_LOCAL_VALUE (newval
)->realvalue
= SYMBOL_VALUE (variable
);
1541 XBUFFER_LOCAL_VALUE (newval
)->buffer
= Fcurrent_buffer ();
1542 XBUFFER_LOCAL_VALUE (newval
)->frame
= Qnil
;
1543 XBUFFER_LOCAL_VALUE (newval
)->found_for_buffer
= 0;
1544 XBUFFER_LOCAL_VALUE (newval
)->found_for_frame
= 0;
1545 XBUFFER_LOCAL_VALUE (newval
)->check_frame
= 0;
1546 XBUFFER_LOCAL_VALUE (newval
)->cdr
= tem
;
1547 SET_SYMBOL_VALUE (variable
, newval
);
1551 DEFUN ("make-local-variable", Fmake_local_variable
, Smake_local_variable
,
1552 1, 1, "vMake Local Variable: ",
1553 doc
: /* Make VARIABLE have a separate value in the current buffer.
1554 Other buffers will continue to share a common default value.
1555 \(The buffer-local value of VARIABLE starts out as the same value
1556 VARIABLE previously had. If VARIABLE was void, it remains void.\)
1557 See also `make-variable-buffer-local'. Return VARIABLE.
1559 If the variable is already arranged to become local when set,
1560 this function causes a local value to exist for this buffer,
1561 just as setting the variable would do.
1563 This function returns VARIABLE, and therefore
1564 (set (make-local-variable 'VARIABLE) VALUE-EXP)
1567 Do not use `make-local-variable' to make a hook variable buffer-local.
1568 Instead, use `add-hook' and specify t for the LOCAL argument. */)
1570 register Lisp_Object variable
;
1572 register Lisp_Object tem
, valcontents
;
1574 CHECK_SYMBOL (variable
);
1575 variable
= indirect_variable (variable
);
1577 valcontents
= SYMBOL_VALUE (variable
);
1578 if (EQ (variable
, Qnil
) || EQ (variable
, Qt
) || KBOARD_OBJFWDP (valcontents
))
1579 error ("Symbol %s may not be buffer-local", SDATA (SYMBOL_NAME (variable
)));
1581 if (BUFFER_LOCAL_VALUEP (valcontents
) || BUFFER_OBJFWDP (valcontents
))
1583 tem
= Fboundp (variable
);
1585 /* Make sure the symbol has a local value in this particular buffer,
1586 by setting it to the same value it already has. */
1587 Fset (variable
, (EQ (tem
, Qt
) ? Fsymbol_value (variable
) : Qunbound
));
1590 /* Make sure symbol is set up to hold per-buffer values. */
1591 if (!SOME_BUFFER_LOCAL_VALUEP (valcontents
))
1594 tem
= Fcons (Qnil
, do_symval_forwarding (valcontents
));
1596 newval
= allocate_misc ();
1597 XMISCTYPE (newval
) = Lisp_Misc_Some_Buffer_Local_Value
;
1598 XBUFFER_LOCAL_VALUE (newval
)->realvalue
= SYMBOL_VALUE (variable
);
1599 XBUFFER_LOCAL_VALUE (newval
)->buffer
= Qnil
;
1600 XBUFFER_LOCAL_VALUE (newval
)->frame
= Qnil
;
1601 XBUFFER_LOCAL_VALUE (newval
)->found_for_buffer
= 0;
1602 XBUFFER_LOCAL_VALUE (newval
)->found_for_frame
= 0;
1603 XBUFFER_LOCAL_VALUE (newval
)->check_frame
= 0;
1604 XBUFFER_LOCAL_VALUE (newval
)->cdr
= tem
;
1605 SET_SYMBOL_VALUE (variable
, newval
);;
1607 /* Make sure this buffer has its own value of symbol. */
1608 tem
= Fassq (variable
, current_buffer
->local_var_alist
);
1611 /* Swap out any local binding for some other buffer, and make
1612 sure the current value is permanently recorded, if it's the
1614 find_symbol_value (variable
);
1616 current_buffer
->local_var_alist
1617 = Fcons (Fcons (variable
, XCDR (XBUFFER_LOCAL_VALUE (SYMBOL_VALUE (variable
))->cdr
)),
1618 current_buffer
->local_var_alist
);
1620 /* Make sure symbol does not think it is set up for this buffer;
1621 force it to look once again for this buffer's value. */
1623 Lisp_Object
*pvalbuf
;
1625 valcontents
= SYMBOL_VALUE (variable
);
1627 pvalbuf
= &XBUFFER_LOCAL_VALUE (valcontents
)->buffer
;
1628 if (current_buffer
== XBUFFER (*pvalbuf
))
1630 XBUFFER_LOCAL_VALUE (valcontents
)->found_for_buffer
= 0;
1634 /* If the symbol forwards into a C variable, then load the binding
1635 for this buffer now. If C code modifies the variable before we
1636 load the binding in, then that new value will clobber the default
1637 binding the next time we unload it. */
1638 valcontents
= XBUFFER_LOCAL_VALUE (SYMBOL_VALUE (variable
))->realvalue
;
1639 if (INTFWDP (valcontents
) || BOOLFWDP (valcontents
) || OBJFWDP (valcontents
))
1640 swap_in_symval_forwarding (variable
, SYMBOL_VALUE (variable
));
1645 DEFUN ("kill-local-variable", Fkill_local_variable
, Skill_local_variable
,
1646 1, 1, "vKill Local Variable: ",
1647 doc
: /* Make VARIABLE no longer have a separate value in the current buffer.
1648 From now on the default value will apply in this buffer. Return VARIABLE. */)
1650 register Lisp_Object variable
;
1652 register Lisp_Object tem
, valcontents
;
1654 CHECK_SYMBOL (variable
);
1655 variable
= indirect_variable (variable
);
1657 valcontents
= SYMBOL_VALUE (variable
);
1659 if (BUFFER_OBJFWDP (valcontents
))
1661 int offset
= XBUFFER_OBJFWD (valcontents
)->offset
;
1662 int idx
= PER_BUFFER_IDX (offset
);
1666 SET_PER_BUFFER_VALUE_P (current_buffer
, idx
, 0);
1667 PER_BUFFER_VALUE (current_buffer
, offset
)
1668 = PER_BUFFER_DEFAULT (offset
);
1673 if (!BUFFER_LOCAL_VALUEP (valcontents
)
1674 && !SOME_BUFFER_LOCAL_VALUEP (valcontents
))
1677 /* Get rid of this buffer's alist element, if any. */
1679 tem
= Fassq (variable
, current_buffer
->local_var_alist
);
1681 current_buffer
->local_var_alist
1682 = Fdelq (tem
, current_buffer
->local_var_alist
);
1684 /* If the symbol is set up with the current buffer's binding
1685 loaded, recompute its value. We have to do it now, or else
1686 forwarded objects won't work right. */
1688 Lisp_Object
*pvalbuf
, buf
;
1689 valcontents
= SYMBOL_VALUE (variable
);
1690 pvalbuf
= &XBUFFER_LOCAL_VALUE (valcontents
)->buffer
;
1691 XSETBUFFER (buf
, current_buffer
);
1692 if (EQ (buf
, *pvalbuf
))
1695 XBUFFER_LOCAL_VALUE (valcontents
)->found_for_buffer
= 0;
1696 find_symbol_value (variable
);
1703 /* Lisp functions for creating and removing buffer-local variables. */
1705 DEFUN ("make-variable-frame-local", Fmake_variable_frame_local
, Smake_variable_frame_local
,
1706 1, 1, "vMake Variable Frame Local: ",
1707 doc
: /* Enable VARIABLE to have frame-local bindings.
1708 When a frame-local binding exists in the current frame,
1709 it is in effect whenever the current buffer has no buffer-local binding.
1710 A frame-local binding is actually a frame parameter value;
1711 thus, any given frame has a local binding for VARIABLE if it has
1712 a value for the frame parameter named VARIABLE. Return VARIABLE.
1713 See `modify-frame-parameters' for how to set frame parameters. */)
1715 register Lisp_Object variable
;
1717 register Lisp_Object tem
, valcontents
, newval
;
1719 CHECK_SYMBOL (variable
);
1720 variable
= indirect_variable (variable
);
1722 valcontents
= SYMBOL_VALUE (variable
);
1723 if (EQ (variable
, Qnil
) || EQ (variable
, Qt
) || KBOARD_OBJFWDP (valcontents
)
1724 || BUFFER_OBJFWDP (valcontents
))
1725 error ("Symbol %s may not be frame-local", SDATA (SYMBOL_NAME (variable
)));
1727 if (BUFFER_LOCAL_VALUEP (valcontents
)
1728 || SOME_BUFFER_LOCAL_VALUEP (valcontents
))
1730 XBUFFER_LOCAL_VALUE (valcontents
)->check_frame
= 1;
1734 if (EQ (valcontents
, Qunbound
))
1735 SET_SYMBOL_VALUE (variable
, Qnil
);
1736 tem
= Fcons (Qnil
, Fsymbol_value (variable
));
1738 newval
= allocate_misc ();
1739 XMISCTYPE (newval
) = Lisp_Misc_Some_Buffer_Local_Value
;
1740 XBUFFER_LOCAL_VALUE (newval
)->realvalue
= SYMBOL_VALUE (variable
);
1741 XBUFFER_LOCAL_VALUE (newval
)->buffer
= Qnil
;
1742 XBUFFER_LOCAL_VALUE (newval
)->frame
= Qnil
;
1743 XBUFFER_LOCAL_VALUE (newval
)->found_for_buffer
= 0;
1744 XBUFFER_LOCAL_VALUE (newval
)->found_for_frame
= 0;
1745 XBUFFER_LOCAL_VALUE (newval
)->check_frame
= 1;
1746 XBUFFER_LOCAL_VALUE (newval
)->cdr
= tem
;
1747 SET_SYMBOL_VALUE (variable
, newval
);
1751 DEFUN ("local-variable-p", Flocal_variable_p
, Slocal_variable_p
,
1753 doc
: /* Non-nil if VARIABLE has a local binding in buffer BUFFER.
1754 BUFFER defaults to the current buffer. */)
1756 register Lisp_Object variable
, buffer
;
1758 Lisp_Object valcontents
;
1759 register struct buffer
*buf
;
1762 buf
= current_buffer
;
1765 CHECK_BUFFER (buffer
);
1766 buf
= XBUFFER (buffer
);
1769 CHECK_SYMBOL (variable
);
1770 variable
= indirect_variable (variable
);
1772 valcontents
= SYMBOL_VALUE (variable
);
1773 if (BUFFER_LOCAL_VALUEP (valcontents
)
1774 || SOME_BUFFER_LOCAL_VALUEP (valcontents
))
1776 Lisp_Object tail
, elt
;
1778 for (tail
= buf
->local_var_alist
; CONSP (tail
); tail
= XCDR (tail
))
1781 if (EQ (variable
, XCAR (elt
)))
1785 if (BUFFER_OBJFWDP (valcontents
))
1787 int offset
= XBUFFER_OBJFWD (valcontents
)->offset
;
1788 int idx
= PER_BUFFER_IDX (offset
);
1789 if (idx
== -1 || PER_BUFFER_VALUE_P (buf
, idx
))
1795 DEFUN ("local-variable-if-set-p", Flocal_variable_if_set_p
, Slocal_variable_if_set_p
,
1797 doc
: /* Non-nil if VARIABLE will be local in buffer BUFFER if it is set there.
1798 BUFFER defaults to the current buffer. */)
1800 register Lisp_Object variable
, buffer
;
1802 Lisp_Object valcontents
;
1803 register struct buffer
*buf
;
1806 buf
= current_buffer
;
1809 CHECK_BUFFER (buffer
);
1810 buf
= XBUFFER (buffer
);
1813 CHECK_SYMBOL (variable
);
1814 variable
= indirect_variable (variable
);
1816 valcontents
= SYMBOL_VALUE (variable
);
1818 /* This means that make-variable-buffer-local was done. */
1819 if (BUFFER_LOCAL_VALUEP (valcontents
))
1821 /* All these slots become local if they are set. */
1822 if (BUFFER_OBJFWDP (valcontents
))
1824 if (SOME_BUFFER_LOCAL_VALUEP (valcontents
))
1826 Lisp_Object tail
, elt
;
1827 for (tail
= buf
->local_var_alist
; CONSP (tail
); tail
= XCDR (tail
))
1830 if (EQ (variable
, XCAR (elt
)))
1837 DEFUN ("variable-binding-locus", Fvariable_binding_locus
, Svariable_binding_locus
,
1839 doc
: /* Return a value indicating where VARIABLE's current binding comes from.
1840 If the current binding is buffer-local, the value is the current buffer.
1841 If the current binding is frame-local, the value is the selected frame.
1842 If the current binding is global (the default), the value is nil. */)
1844 register Lisp_Object variable
;
1846 Lisp_Object valcontents
;
1848 CHECK_SYMBOL (variable
);
1849 variable
= indirect_variable (variable
);
1851 /* Make sure the current binding is actually swapped in. */
1852 find_symbol_value (variable
);
1854 valcontents
= XSYMBOL (variable
)->value
;
1856 if (BUFFER_LOCAL_VALUEP (valcontents
)
1857 || SOME_BUFFER_LOCAL_VALUEP (valcontents
)
1858 || BUFFER_OBJFWDP (valcontents
))
1860 /* For a local variable, record both the symbol and which
1861 buffer's or frame's value we are saving. */
1862 if (!NILP (Flocal_variable_p (variable
, Qnil
)))
1863 return Fcurrent_buffer ();
1864 else if (!BUFFER_OBJFWDP (valcontents
)
1865 && XBUFFER_LOCAL_VALUE (valcontents
)->found_for_frame
)
1866 return XBUFFER_LOCAL_VALUE (valcontents
)->frame
;
1872 /* Find the function at the end of a chain of symbol function indirections. */
1874 /* If OBJECT is a symbol, find the end of its function chain and
1875 return the value found there. If OBJECT is not a symbol, just
1876 return it. If there is a cycle in the function chain, signal a
1877 cyclic-function-indirection error.
1879 This is like Findirect_function, except that it doesn't signal an
1880 error if the chain ends up unbound. */
1882 indirect_function (object
)
1883 register Lisp_Object object
;
1885 Lisp_Object tortoise
, hare
;
1887 hare
= tortoise
= object
;
1891 if (!SYMBOLP (hare
) || EQ (hare
, Qunbound
))
1893 hare
= XSYMBOL (hare
)->function
;
1894 if (!SYMBOLP (hare
) || EQ (hare
, Qunbound
))
1896 hare
= XSYMBOL (hare
)->function
;
1898 tortoise
= XSYMBOL (tortoise
)->function
;
1900 if (EQ (hare
, tortoise
))
1901 Fsignal (Qcyclic_function_indirection
, Fcons (object
, Qnil
));
1907 DEFUN ("indirect-function", Findirect_function
, Sindirect_function
, 1, 1, 0,
1908 doc
: /* Return the function at the end of OBJECT's function chain.
1909 If OBJECT is a symbol, follow all function indirections and return the final
1911 If OBJECT is not a symbol, just return it.
1912 Signal a void-function error if the final symbol is unbound.
1913 Signal a cyclic-function-indirection error if there is a loop in the
1914 function chain of symbols. */)
1916 register Lisp_Object object
;
1920 result
= indirect_function (object
);
1922 if (EQ (result
, Qunbound
))
1923 return Fsignal (Qvoid_function
, Fcons (object
, Qnil
));
1927 /* Extract and set vector and string elements */
1929 DEFUN ("aref", Faref
, Saref
, 2, 2, 0,
1930 doc
: /* Return the element of ARRAY at index IDX.
1931 ARRAY may be a vector, a string, a char-table, a bool-vector,
1932 or a byte-code object. IDX starts at 0. */)
1934 register Lisp_Object array
;
1937 register int idxval
;
1940 idxval
= XINT (idx
);
1941 if (STRINGP (array
))
1945 if (idxval
< 0 || idxval
>= SCHARS (array
))
1946 args_out_of_range (array
, idx
);
1947 if (! STRING_MULTIBYTE (array
))
1948 return make_number ((unsigned char) SREF (array
, idxval
));
1949 idxval_byte
= string_char_to_byte (array
, idxval
);
1951 c
= STRING_CHAR (SDATA (array
) + idxval_byte
,
1952 SBYTES (array
) - idxval_byte
);
1953 return make_number (c
);
1955 else if (BOOL_VECTOR_P (array
))
1959 if (idxval
< 0 || idxval
>= XBOOL_VECTOR (array
)->size
)
1960 args_out_of_range (array
, idx
);
1962 val
= (unsigned char) XBOOL_VECTOR (array
)->data
[idxval
/ BOOL_VECTOR_BITS_PER_CHAR
];
1963 return (val
& (1 << (idxval
% BOOL_VECTOR_BITS_PER_CHAR
)) ? Qt
: Qnil
);
1965 else if (CHAR_TABLE_P (array
))
1967 CHECK_CHARACTER (idx
);
1968 return CHAR_TABLE_REF (array
, idxval
);
1973 if (VECTORP (array
))
1974 size
= XVECTOR (array
)->size
;
1975 else if (COMPILEDP (array
))
1976 size
= XVECTOR (array
)->size
& PSEUDOVECTOR_SIZE_MASK
;
1978 wrong_type_argument (Qarrayp
, array
);
1980 if (idxval
< 0 || idxval
>= size
)
1981 args_out_of_range (array
, idx
);
1982 return XVECTOR (array
)->contents
[idxval
];
1986 /* Don't use alloca for relocating string data larger than this, lest
1987 we overflow their stack. The value is the same as what used in
1988 fns.c for base64 handling. */
1989 #define MAX_ALLOCA 16*1024
1991 DEFUN ("aset", Faset
, Saset
, 3, 3, 0,
1992 doc
: /* Store into the element of ARRAY at index IDX the value NEWELT.
1993 Return NEWELT. ARRAY may be a vector, a string, a char-table or a
1994 bool-vector. IDX starts at 0. */)
1995 (array
, idx
, newelt
)
1996 register Lisp_Object array
;
1997 Lisp_Object idx
, newelt
;
1999 register int idxval
;
2002 idxval
= XINT (idx
);
2003 if (!VECTORP (array
) && !STRINGP (array
) && !BOOL_VECTOR_P (array
)
2004 && ! CHAR_TABLE_P (array
))
2005 array
= wrong_type_argument (Qarrayp
, array
);
2006 CHECK_IMPURE (array
);
2008 if (VECTORP (array
))
2010 if (idxval
< 0 || idxval
>= XVECTOR (array
)->size
)
2011 args_out_of_range (array
, idx
);
2012 XVECTOR (array
)->contents
[idxval
] = newelt
;
2014 else if (BOOL_VECTOR_P (array
))
2018 if (idxval
< 0 || idxval
>= XBOOL_VECTOR (array
)->size
)
2019 args_out_of_range (array
, idx
);
2021 val
= (unsigned char) XBOOL_VECTOR (array
)->data
[idxval
/ BOOL_VECTOR_BITS_PER_CHAR
];
2023 if (! NILP (newelt
))
2024 val
|= 1 << (idxval
% BOOL_VECTOR_BITS_PER_CHAR
);
2026 val
&= ~(1 << (idxval
% BOOL_VECTOR_BITS_PER_CHAR
));
2027 XBOOL_VECTOR (array
)->data
[idxval
/ BOOL_VECTOR_BITS_PER_CHAR
] = val
;
2029 else if (CHAR_TABLE_P (array
))
2031 CHECK_CHARACTER (idx
);
2032 CHAR_TABLE_SET (array
, idxval
, newelt
);
2034 else if (STRING_MULTIBYTE (array
))
2036 int idxval_byte
, prev_bytes
, new_bytes
, nbytes
;
2037 unsigned char workbuf
[MAX_MULTIBYTE_LENGTH
], *p0
= workbuf
, *p1
;
2039 if (idxval
< 0 || idxval
>= SCHARS (array
))
2040 args_out_of_range (array
, idx
);
2041 CHECK_CHARACTER (newelt
);
2043 nbytes
= SBYTES (array
);
2045 idxval_byte
= string_char_to_byte (array
, idxval
);
2046 p1
= SDATA (array
) + idxval_byte
;
2047 PARSE_MULTIBYTE_SEQ (p1
, nbytes
- idxval_byte
, prev_bytes
);
2048 new_bytes
= CHAR_STRING (XINT (newelt
), p0
);
2049 if (prev_bytes
!= new_bytes
)
2051 /* We must relocate the string data. */
2052 int nchars
= SCHARS (array
);
2055 str
= (nbytes
<= MAX_ALLOCA
2056 ? (unsigned char *) alloca (nbytes
)
2057 : (unsigned char *) xmalloc (nbytes
));
2058 bcopy (SDATA (array
), str
, nbytes
);
2059 allocate_string_data (XSTRING (array
), nchars
,
2060 nbytes
+ new_bytes
- prev_bytes
);
2061 bcopy (str
, SDATA (array
), idxval_byte
);
2062 p1
= SDATA (array
) + idxval_byte
;
2063 bcopy (str
+ idxval_byte
+ prev_bytes
, p1
+ new_bytes
,
2064 nbytes
- (idxval_byte
+ prev_bytes
));
2065 if (nbytes
> MAX_ALLOCA
)
2067 clear_string_char_byte_cache ();
2074 if (idxval
< 0 || idxval
>= SCHARS (array
))
2075 args_out_of_range (array
, idx
);
2076 CHECK_NUMBER (newelt
);
2078 if (XINT (newelt
) < 0 || ASCII_CHAR_P (XINT (newelt
))
2079 || CHAR_BYTE8_P (XINT (newelt
)))
2080 SSET (array
, idxval
, XINT (newelt
));
2083 /* We must relocate the string data while converting it to
2085 int idxval_byte
, prev_bytes
, new_bytes
;
2086 unsigned char workbuf
[MAX_MULTIBYTE_LENGTH
], *p0
= workbuf
, *p1
;
2087 unsigned char *origstr
= SDATA (array
), *str
;
2090 nchars
= SCHARS (array
);
2091 nbytes
= idxval_byte
= count_size_as_multibyte (origstr
, idxval
);
2092 nbytes
+= count_size_as_multibyte (origstr
+ idxval
,
2094 str
= (nbytes
<= MAX_ALLOCA
2095 ? (unsigned char *) alloca (nbytes
)
2096 : (unsigned char *) xmalloc (nbytes
));
2097 copy_text (SDATA (array
), str
, nchars
, 0, 1);
2098 PARSE_MULTIBYTE_SEQ (str
+ idxval_byte
, nbytes
- idxval_byte
,
2100 new_bytes
= CHAR_STRING (XINT (newelt
), p0
);
2101 allocate_string_data (XSTRING (array
), nchars
,
2102 nbytes
+ new_bytes
- prev_bytes
);
2103 bcopy (str
, SDATA (array
), idxval_byte
);
2104 p1
= SDATA (array
) + idxval_byte
;
2107 bcopy (str
+ idxval_byte
+ prev_bytes
, p1
,
2108 nbytes
- (idxval_byte
+ prev_bytes
));
2109 if (nbytes
> MAX_ALLOCA
)
2111 clear_string_char_byte_cache ();
2118 /* Arithmetic functions */
2120 enum comparison
{ equal
, notequal
, less
, grtr
, less_or_equal
, grtr_or_equal
};
2123 arithcompare (num1
, num2
, comparison
)
2124 Lisp_Object num1
, num2
;
2125 enum comparison comparison
;
2127 double f1
= 0, f2
= 0;
2130 CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (num1
);
2131 CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (num2
);
2133 if (FLOATP (num1
) || FLOATP (num2
))
2136 f1
= (FLOATP (num1
)) ? XFLOAT_DATA (num1
) : XINT (num1
);
2137 f2
= (FLOATP (num2
)) ? XFLOAT_DATA (num2
) : XINT (num2
);
2143 if (floatp
? f1
== f2
: XINT (num1
) == XINT (num2
))
2148 if (floatp
? f1
!= f2
: XINT (num1
) != XINT (num2
))
2153 if (floatp
? f1
< f2
: XINT (num1
) < XINT (num2
))
2158 if (floatp
? f1
<= f2
: XINT (num1
) <= XINT (num2
))
2163 if (floatp
? f1
> f2
: XINT (num1
) > XINT (num2
))
2168 if (floatp
? f1
>= f2
: XINT (num1
) >= XINT (num2
))
2177 DEFUN ("=", Feqlsign
, Seqlsign
, 2, 2, 0,
2178 doc
: /* Return t if two args, both numbers or markers, are equal. */)
2180 register Lisp_Object num1
, num2
;
2182 return arithcompare (num1
, num2
, equal
);
2185 DEFUN ("<", Flss
, Slss
, 2, 2, 0,
2186 doc
: /* Return t if first arg is less than second arg. Both must be numbers or markers. */)
2188 register Lisp_Object num1
, num2
;
2190 return arithcompare (num1
, num2
, less
);
2193 DEFUN (">", Fgtr
, Sgtr
, 2, 2, 0,
2194 doc
: /* Return t if first arg is greater than second arg. Both must be numbers or markers. */)
2196 register Lisp_Object num1
, num2
;
2198 return arithcompare (num1
, num2
, grtr
);
2201 DEFUN ("<=", Fleq
, Sleq
, 2, 2, 0,
2202 doc
: /* Return t if first arg is less than or equal to second arg.
2203 Both must be numbers or markers. */)
2205 register Lisp_Object num1
, num2
;
2207 return arithcompare (num1
, num2
, less_or_equal
);
2210 DEFUN (">=", Fgeq
, Sgeq
, 2, 2, 0,
2211 doc
: /* Return t if first arg is greater than or equal to second arg.
2212 Both must be numbers or markers. */)
2214 register Lisp_Object num1
, num2
;
2216 return arithcompare (num1
, num2
, grtr_or_equal
);
2219 DEFUN ("/=", Fneq
, Sneq
, 2, 2, 0,
2220 doc
: /* Return t if first arg is not equal to second arg. Both must be numbers or markers. */)
2222 register Lisp_Object num1
, num2
;
2224 return arithcompare (num1
, num2
, notequal
);
2227 DEFUN ("zerop", Fzerop
, Szerop
, 1, 1, 0,
2228 doc
: /* Return t if NUMBER is zero. */)
2230 register Lisp_Object number
;
2232 CHECK_NUMBER_OR_FLOAT (number
);
2234 if (FLOATP (number
))
2236 if (XFLOAT_DATA (number
) == 0.0)
2246 /* Convert between long values and pairs of Lisp integers. */
2252 unsigned long top
= i
>> 16;
2253 unsigned int bot
= i
& 0xFFFF;
2255 return make_number (bot
);
2256 if (top
== (unsigned long)-1 >> 16)
2257 return Fcons (make_number (-1), make_number (bot
));
2258 return Fcons (make_number (top
), make_number (bot
));
2265 Lisp_Object top
, bot
;
2272 return ((XINT (top
) << 16) | XINT (bot
));
2275 DEFUN ("number-to-string", Fnumber_to_string
, Snumber_to_string
, 1, 1, 0,
2276 doc
: /* Return the decimal representation of NUMBER as a string.
2277 Uses a minus sign if negative.
2278 NUMBER may be an integer or a floating point number. */)
2282 char buffer
[VALBITS
];
2284 CHECK_NUMBER_OR_FLOAT (number
);
2286 if (FLOATP (number
))
2288 char pigbuf
[350]; /* see comments in float_to_string */
2290 float_to_string (pigbuf
, XFLOAT_DATA (number
));
2291 return build_string (pigbuf
);
2294 if (sizeof (int) == sizeof (EMACS_INT
))
2295 sprintf (buffer
, "%d", XINT (number
));
2296 else if (sizeof (long) == sizeof (EMACS_INT
))
2297 sprintf (buffer
, "%ld", (long) XINT (number
));
2300 return build_string (buffer
);
2304 digit_to_number (character
, base
)
2305 int character
, base
;
2309 if (character
>= '0' && character
<= '9')
2310 digit
= character
- '0';
2311 else if (character
>= 'a' && character
<= 'z')
2312 digit
= character
- 'a' + 10;
2313 else if (character
>= 'A' && character
<= 'Z')
2314 digit
= character
- 'A' + 10;
2324 DEFUN ("string-to-number", Fstring_to_number
, Sstring_to_number
, 1, 2, 0,
2325 doc
: /* Parse STRING as a decimal number and return the number.
2326 This parses both integers and floating point numbers.
2327 It ignores leading spaces and tabs.
2329 If BASE, interpret STRING as a number in that base. If BASE isn't
2330 present, base 10 is used. BASE must be between 2 and 16 (inclusive).
2331 If the base used is not 10, floating point is not recognized. */)
2333 register Lisp_Object string
, base
;
2335 register unsigned char *p
;
2340 CHECK_STRING (string
);
2346 CHECK_NUMBER (base
);
2348 if (b
< 2 || b
> 16)
2349 Fsignal (Qargs_out_of_range
, Fcons (base
, Qnil
));
2352 /* Skip any whitespace at the front of the number. Some versions of
2353 atoi do this anyway, so we might as well make Emacs lisp consistent. */
2355 while (*p
== ' ' || *p
== '\t')
2366 if (isfloat_string (p
) && b
== 10)
2367 val
= make_float (sign
* atof (p
));
2374 int digit
= digit_to_number (*p
++, b
);
2380 val
= make_fixnum_or_float (sign
* v
);
2400 static Lisp_Object float_arith_driver
P_ ((double, int, enum arithop
,
2401 int, Lisp_Object
*));
2402 extern Lisp_Object
fmod_float ();
2405 arith_driver (code
, nargs
, args
)
2408 register Lisp_Object
*args
;
2410 register Lisp_Object val
;
2411 register int argnum
;
2412 register EMACS_INT accum
= 0;
2413 register EMACS_INT next
;
2415 switch (SWITCH_ENUM_CAST (code
))
2433 for (argnum
= 0; argnum
< nargs
; argnum
++)
2435 /* Using args[argnum] as argument to CHECK_NUMBER_... */
2437 CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (val
);
2440 return float_arith_driver ((double) accum
, argnum
, code
,
2443 next
= XINT (args
[argnum
]);
2444 switch (SWITCH_ENUM_CAST (code
))
2450 accum
= argnum
? accum
- next
: nargs
== 1 ? - next
: next
;
2461 Fsignal (Qarith_error
, Qnil
);
2475 if (!argnum
|| next
> accum
)
2479 if (!argnum
|| next
< accum
)
2485 XSETINT (val
, accum
);
2490 #define isnan(x) ((x) != (x))
2493 float_arith_driver (accum
, argnum
, code
, nargs
, args
)
2495 register int argnum
;
2498 register Lisp_Object
*args
;
2500 register Lisp_Object val
;
2503 for (; argnum
< nargs
; argnum
++)
2505 val
= args
[argnum
]; /* using args[argnum] as argument to CHECK_NUMBER_... */
2506 CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (val
);
2510 next
= XFLOAT_DATA (val
);
2514 args
[argnum
] = val
; /* runs into a compiler bug. */
2515 next
= XINT (args
[argnum
]);
2517 switch (SWITCH_ENUM_CAST (code
))
2523 accum
= argnum
? accum
- next
: nargs
== 1 ? - next
: next
;
2533 if (! IEEE_FLOATING_POINT
&& next
== 0)
2534 Fsignal (Qarith_error
, Qnil
);
2541 return wrong_type_argument (Qinteger_or_marker_p
, val
);
2543 if (!argnum
|| isnan (next
) || next
> accum
)
2547 if (!argnum
|| isnan (next
) || next
< accum
)
2553 return make_float (accum
);
2557 DEFUN ("+", Fplus
, Splus
, 0, MANY
, 0,
2558 doc
: /* Return sum of any number of arguments, which are numbers or markers.
2559 usage: (+ &rest NUMBERS-OR-MARKERS) */)
2564 return arith_driver (Aadd
, nargs
, args
);
2567 DEFUN ("-", Fminus
, Sminus
, 0, MANY
, 0,
2568 doc
: /* Negate number or subtract numbers or markers and return the result.
2569 With one arg, negates it. With more than one arg,
2570 subtracts all but the first from the first.
2571 usage: (- &optional NUMBER-OR-MARKER &rest MORE-NUMBERS-OR-MARKERS) */)
2576 return arith_driver (Asub
, nargs
, args
);
2579 DEFUN ("*", Ftimes
, Stimes
, 0, MANY
, 0,
2580 doc
: /* Return product of any number of arguments, which are numbers or markers.
2581 usage: (* &rest NUMBERS-OR-MARKERS) */)
2586 return arith_driver (Amult
, nargs
, args
);
2589 DEFUN ("/", Fquo
, Squo
, 2, MANY
, 0,
2590 doc
: /* Return first argument divided by all the remaining arguments.
2591 The arguments must be numbers or markers.
2592 usage: (/ DIVIDEND DIVISOR &rest DIVISORS) */)
2598 for (argnum
= 2; argnum
< nargs
; argnum
++)
2599 if (FLOATP (args
[argnum
]))
2600 return float_arith_driver (0, 0, Adiv
, nargs
, args
);
2601 return arith_driver (Adiv
, nargs
, args
);
2604 DEFUN ("%", Frem
, Srem
, 2, 2, 0,
2605 doc
: /* Return remainder of X divided by Y.
2606 Both must be integers or markers. */)
2608 register Lisp_Object x
, y
;
2612 CHECK_NUMBER_COERCE_MARKER (x
);
2613 CHECK_NUMBER_COERCE_MARKER (y
);
2615 if (XFASTINT (y
) == 0)
2616 Fsignal (Qarith_error
, Qnil
);
2618 XSETINT (val
, XINT (x
) % XINT (y
));
2632 /* If the magnitude of the result exceeds that of the divisor, or
2633 the sign of the result does not agree with that of the dividend,
2634 iterate with the reduced value. This does not yield a
2635 particularly accurate result, but at least it will be in the
2636 range promised by fmod. */
2638 r
-= f2
* floor (r
/ f2
);
2639 while (f2
<= (r
< 0 ? -r
: r
) || ((r
< 0) != (f1
< 0) && ! isnan (r
)));
2643 #endif /* ! HAVE_FMOD */
2645 DEFUN ("mod", Fmod
, Smod
, 2, 2, 0,
2646 doc
: /* Return X modulo Y.
2647 The result falls between zero (inclusive) and Y (exclusive).
2648 Both X and Y must be numbers or markers. */)
2650 register Lisp_Object x
, y
;
2655 CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (x
);
2656 CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (y
);
2658 if (FLOATP (x
) || FLOATP (y
))
2659 return fmod_float (x
, y
);
2665 Fsignal (Qarith_error
, Qnil
);
2669 /* If the "remainder" comes out with the wrong sign, fix it. */
2670 if (i2
< 0 ? i1
> 0 : i1
< 0)
2677 DEFUN ("max", Fmax
, Smax
, 1, MANY
, 0,
2678 doc
: /* Return largest of all the arguments (which must be numbers or markers).
2679 The value is always a number; markers are converted to numbers.
2680 usage: (max NUMBER-OR-MARKER &rest NUMBERS-OR-MARKERS) */)
2685 return arith_driver (Amax
, nargs
, args
);
2688 DEFUN ("min", Fmin
, Smin
, 1, MANY
, 0,
2689 doc
: /* Return smallest of all the arguments (which must be numbers or markers).
2690 The value is always a number; markers are converted to numbers.
2691 usage: (min NUMBER-OR-MARKER &rest NUMBERS-OR-MARKERS) */)
2696 return arith_driver (Amin
, nargs
, args
);
2699 DEFUN ("logand", Flogand
, Slogand
, 0, MANY
, 0,
2700 doc
: /* Return bitwise-and of all the arguments.
2701 Arguments may be integers, or markers converted to integers.
2702 usage: (logand &rest INTS-OR-MARKERS) */)
2707 return arith_driver (Alogand
, nargs
, args
);
2710 DEFUN ("logior", Flogior
, Slogior
, 0, MANY
, 0,
2711 doc
: /* Return bitwise-or of all the arguments.
2712 Arguments may be integers, or markers converted to integers.
2713 usage: (logior &rest INTS-OR-MARKERS) */)
2718 return arith_driver (Alogior
, nargs
, args
);
2721 DEFUN ("logxor", Flogxor
, Slogxor
, 0, MANY
, 0,
2722 doc
: /* Return bitwise-exclusive-or of all the arguments.
2723 Arguments may be integers, or markers converted to integers.
2724 usage: (logxor &rest INTS-OR-MARKERS) */)
2729 return arith_driver (Alogxor
, nargs
, args
);
2732 DEFUN ("ash", Fash
, Sash
, 2, 2, 0,
2733 doc
: /* Return VALUE with its bits shifted left by COUNT.
2734 If COUNT is negative, shifting is actually to the right.
2735 In this case, the sign bit is duplicated. */)
2737 register Lisp_Object value
, count
;
2739 register Lisp_Object val
;
2741 CHECK_NUMBER (value
);
2742 CHECK_NUMBER (count
);
2744 if (XINT (count
) >= BITS_PER_EMACS_INT
)
2746 else if (XINT (count
) > 0)
2747 XSETINT (val
, XINT (value
) << XFASTINT (count
));
2748 else if (XINT (count
) <= -BITS_PER_EMACS_INT
)
2749 XSETINT (val
, XINT (value
) < 0 ? -1 : 0);
2751 XSETINT (val
, XINT (value
) >> -XINT (count
));
2755 DEFUN ("lsh", Flsh
, Slsh
, 2, 2, 0,
2756 doc
: /* Return VALUE with its bits shifted left by COUNT.
2757 If COUNT is negative, shifting is actually to the right.
2758 In this case, zeros are shifted in on the left. */)
2760 register Lisp_Object value
, count
;
2762 register Lisp_Object val
;
2764 CHECK_NUMBER (value
);
2765 CHECK_NUMBER (count
);
2767 if (XINT (count
) >= BITS_PER_EMACS_INT
)
2769 else if (XINT (count
) > 0)
2770 XSETINT (val
, (EMACS_UINT
) XUINT (value
) << XFASTINT (count
));
2771 else if (XINT (count
) <= -BITS_PER_EMACS_INT
)
2774 XSETINT (val
, (EMACS_UINT
) XUINT (value
) >> -XINT (count
));
2778 DEFUN ("1+", Fadd1
, Sadd1
, 1, 1, 0,
2779 doc
: /* Return NUMBER plus one. NUMBER may be a number or a marker.
2780 Markers are converted to integers. */)
2782 register Lisp_Object number
;
2784 CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (number
);
2786 if (FLOATP (number
))
2787 return (make_float (1.0 + XFLOAT_DATA (number
)));
2789 XSETINT (number
, XINT (number
) + 1);
2793 DEFUN ("1-", Fsub1
, Ssub1
, 1, 1, 0,
2794 doc
: /* Return NUMBER minus one. NUMBER may be a number or a marker.
2795 Markers are converted to integers. */)
2797 register Lisp_Object number
;
2799 CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (number
);
2801 if (FLOATP (number
))
2802 return (make_float (-1.0 + XFLOAT_DATA (number
)));
2804 XSETINT (number
, XINT (number
) - 1);
2808 DEFUN ("lognot", Flognot
, Slognot
, 1, 1, 0,
2809 doc
: /* Return the bitwise complement of NUMBER. NUMBER must be an integer. */)
2811 register Lisp_Object number
;
2813 CHECK_NUMBER (number
);
2814 XSETINT (number
, ~XINT (number
));
2818 DEFUN ("byteorder", Fbyteorder
, Sbyteorder
, 0, 0, 0,
2819 doc
: /* Return the byteorder for the machine.
2820 Returns 66 (ASCII uppercase B) for big endian machines or 108 (ASCII
2821 lowercase l) for small endian machines. */)
2824 unsigned i
= 0x04030201;
2825 int order
= *(char *)&i
== 1 ? 108 : 66;
2827 return make_number (order
);
2835 Lisp_Object error_tail
, arith_tail
;
2837 Qquote
= intern ("quote");
2838 Qlambda
= intern ("lambda");
2839 Qsubr
= intern ("subr");
2840 Qerror_conditions
= intern ("error-conditions");
2841 Qerror_message
= intern ("error-message");
2842 Qtop_level
= intern ("top-level");
2844 Qerror
= intern ("error");
2845 Qquit
= intern ("quit");
2846 Qwrong_type_argument
= intern ("wrong-type-argument");
2847 Qargs_out_of_range
= intern ("args-out-of-range");
2848 Qvoid_function
= intern ("void-function");
2849 Qcyclic_function_indirection
= intern ("cyclic-function-indirection");
2850 Qcyclic_variable_indirection
= intern ("cyclic-variable-indirection");
2851 Qvoid_variable
= intern ("void-variable");
2852 Qsetting_constant
= intern ("setting-constant");
2853 Qinvalid_read_syntax
= intern ("invalid-read-syntax");
2855 Qinvalid_function
= intern ("invalid-function");
2856 Qwrong_number_of_arguments
= intern ("wrong-number-of-arguments");
2857 Qno_catch
= intern ("no-catch");
2858 Qend_of_file
= intern ("end-of-file");
2859 Qarith_error
= intern ("arith-error");
2860 Qbeginning_of_buffer
= intern ("beginning-of-buffer");
2861 Qend_of_buffer
= intern ("end-of-buffer");
2862 Qbuffer_read_only
= intern ("buffer-read-only");
2863 Qtext_read_only
= intern ("text-read-only");
2864 Qmark_inactive
= intern ("mark-inactive");
2866 Qlistp
= intern ("listp");
2867 Qconsp
= intern ("consp");
2868 Qsymbolp
= intern ("symbolp");
2869 Qkeywordp
= intern ("keywordp");
2870 Qintegerp
= intern ("integerp");
2871 Qnatnump
= intern ("natnump");
2872 Qwholenump
= intern ("wholenump");
2873 Qstringp
= intern ("stringp");
2874 Qarrayp
= intern ("arrayp");
2875 Qsequencep
= intern ("sequencep");
2876 Qbufferp
= intern ("bufferp");
2877 Qvectorp
= intern ("vectorp");
2878 Qchar_or_string_p
= intern ("char-or-string-p");
2879 Qmarkerp
= intern ("markerp");
2880 Qbuffer_or_string_p
= intern ("buffer-or-string-p");
2881 Qinteger_or_marker_p
= intern ("integer-or-marker-p");
2882 Qboundp
= intern ("boundp");
2883 Qfboundp
= intern ("fboundp");
2885 Qfloatp
= intern ("floatp");
2886 Qnumberp
= intern ("numberp");
2887 Qnumber_or_marker_p
= intern ("number-or-marker-p");
2889 Qchar_table_p
= intern ("char-table-p");
2890 Qvector_or_char_table_p
= intern ("vector-or-char-table-p");
2892 Qsubrp
= intern ("subrp");
2893 Qunevalled
= intern ("unevalled");
2894 Qmany
= intern ("many");
2896 Qcdr
= intern ("cdr");
2898 /* Handle automatic advice activation */
2899 Qad_advice_info
= intern ("ad-advice-info");
2900 Qad_activate_internal
= intern ("ad-activate-internal");
2902 error_tail
= Fcons (Qerror
, Qnil
);
2904 /* ERROR is used as a signaler for random errors for which nothing else is right */
2906 Fput (Qerror
, Qerror_conditions
,
2908 Fput (Qerror
, Qerror_message
,
2909 build_string ("error"));
2911 Fput (Qquit
, Qerror_conditions
,
2912 Fcons (Qquit
, Qnil
));
2913 Fput (Qquit
, Qerror_message
,
2914 build_string ("Quit"));
2916 Fput (Qwrong_type_argument
, Qerror_conditions
,
2917 Fcons (Qwrong_type_argument
, error_tail
));
2918 Fput (Qwrong_type_argument
, Qerror_message
,
2919 build_string ("Wrong type argument"));
2921 Fput (Qargs_out_of_range
, Qerror_conditions
,
2922 Fcons (Qargs_out_of_range
, error_tail
));
2923 Fput (Qargs_out_of_range
, Qerror_message
,
2924 build_string ("Args out of range"));
2926 Fput (Qvoid_function
, Qerror_conditions
,
2927 Fcons (Qvoid_function
, error_tail
));
2928 Fput (Qvoid_function
, Qerror_message
,
2929 build_string ("Symbol's function definition is void"));
2931 Fput (Qcyclic_function_indirection
, Qerror_conditions
,
2932 Fcons (Qcyclic_function_indirection
, error_tail
));
2933 Fput (Qcyclic_function_indirection
, Qerror_message
,
2934 build_string ("Symbol's chain of function indirections contains a loop"));
2936 Fput (Qcyclic_variable_indirection
, Qerror_conditions
,
2937 Fcons (Qcyclic_variable_indirection
, error_tail
));
2938 Fput (Qcyclic_variable_indirection
, Qerror_message
,
2939 build_string ("Symbol's chain of variable indirections contains a loop"));
2941 Qcircular_list
= intern ("circular-list");
2942 staticpro (&Qcircular_list
);
2943 Fput (Qcircular_list
, Qerror_conditions
,
2944 Fcons (Qcircular_list
, error_tail
));
2945 Fput (Qcircular_list
, Qerror_message
,
2946 build_string ("List contains a loop"));
2948 Fput (Qvoid_variable
, Qerror_conditions
,
2949 Fcons (Qvoid_variable
, error_tail
));
2950 Fput (Qvoid_variable
, Qerror_message
,
2951 build_string ("Symbol's value as variable is void"));
2953 Fput (Qsetting_constant
, Qerror_conditions
,
2954 Fcons (Qsetting_constant
, error_tail
));
2955 Fput (Qsetting_constant
, Qerror_message
,
2956 build_string ("Attempt to set a constant symbol"));
2958 Fput (Qinvalid_read_syntax
, Qerror_conditions
,
2959 Fcons (Qinvalid_read_syntax
, error_tail
));
2960 Fput (Qinvalid_read_syntax
, Qerror_message
,
2961 build_string ("Invalid read syntax"));
2963 Fput (Qinvalid_function
, Qerror_conditions
,
2964 Fcons (Qinvalid_function
, error_tail
));
2965 Fput (Qinvalid_function
, Qerror_message
,
2966 build_string ("Invalid function"));
2968 Fput (Qwrong_number_of_arguments
, Qerror_conditions
,
2969 Fcons (Qwrong_number_of_arguments
, error_tail
));
2970 Fput (Qwrong_number_of_arguments
, Qerror_message
,
2971 build_string ("Wrong number of arguments"));
2973 Fput (Qno_catch
, Qerror_conditions
,
2974 Fcons (Qno_catch
, error_tail
));
2975 Fput (Qno_catch
, Qerror_message
,
2976 build_string ("No catch for tag"));
2978 Fput (Qend_of_file
, Qerror_conditions
,
2979 Fcons (Qend_of_file
, error_tail
));
2980 Fput (Qend_of_file
, Qerror_message
,
2981 build_string ("End of file during parsing"));
2983 arith_tail
= Fcons (Qarith_error
, error_tail
);
2984 Fput (Qarith_error
, Qerror_conditions
,
2986 Fput (Qarith_error
, Qerror_message
,
2987 build_string ("Arithmetic error"));
2989 Fput (Qbeginning_of_buffer
, Qerror_conditions
,
2990 Fcons (Qbeginning_of_buffer
, error_tail
));
2991 Fput (Qbeginning_of_buffer
, Qerror_message
,
2992 build_string ("Beginning of buffer"));
2994 Fput (Qend_of_buffer
, Qerror_conditions
,
2995 Fcons (Qend_of_buffer
, error_tail
));
2996 Fput (Qend_of_buffer
, Qerror_message
,
2997 build_string ("End of buffer"));
2999 Fput (Qbuffer_read_only
, Qerror_conditions
,
3000 Fcons (Qbuffer_read_only
, error_tail
));
3001 Fput (Qbuffer_read_only
, Qerror_message
,
3002 build_string ("Buffer is read-only"));
3004 Fput (Qtext_read_only
, Qerror_conditions
,
3005 Fcons (Qtext_read_only
, error_tail
));
3006 Fput (Qtext_read_only
, Qerror_message
,
3007 build_string ("Text is read-only"));
3009 Qrange_error
= intern ("range-error");
3010 Qdomain_error
= intern ("domain-error");
3011 Qsingularity_error
= intern ("singularity-error");
3012 Qoverflow_error
= intern ("overflow-error");
3013 Qunderflow_error
= intern ("underflow-error");
3015 Fput (Qdomain_error
, Qerror_conditions
,
3016 Fcons (Qdomain_error
, arith_tail
));
3017 Fput (Qdomain_error
, Qerror_message
,
3018 build_string ("Arithmetic domain error"));
3020 Fput (Qrange_error
, Qerror_conditions
,
3021 Fcons (Qrange_error
, arith_tail
));
3022 Fput (Qrange_error
, Qerror_message
,
3023 build_string ("Arithmetic range error"));
3025 Fput (Qsingularity_error
, Qerror_conditions
,
3026 Fcons (Qsingularity_error
, Fcons (Qdomain_error
, arith_tail
)));
3027 Fput (Qsingularity_error
, Qerror_message
,
3028 build_string ("Arithmetic singularity error"));
3030 Fput (Qoverflow_error
, Qerror_conditions
,
3031 Fcons (Qoverflow_error
, Fcons (Qdomain_error
, arith_tail
)));
3032 Fput (Qoverflow_error
, Qerror_message
,
3033 build_string ("Arithmetic overflow error"));
3035 Fput (Qunderflow_error
, Qerror_conditions
,
3036 Fcons (Qunderflow_error
, Fcons (Qdomain_error
, arith_tail
)));
3037 Fput (Qunderflow_error
, Qerror_message
,
3038 build_string ("Arithmetic underflow error"));
3040 staticpro (&Qrange_error
);
3041 staticpro (&Qdomain_error
);
3042 staticpro (&Qsingularity_error
);
3043 staticpro (&Qoverflow_error
);
3044 staticpro (&Qunderflow_error
);
3048 staticpro (&Qquote
);
3049 staticpro (&Qlambda
);
3051 staticpro (&Qunbound
);
3052 staticpro (&Qerror_conditions
);
3053 staticpro (&Qerror_message
);
3054 staticpro (&Qtop_level
);
3056 staticpro (&Qerror
);
3058 staticpro (&Qwrong_type_argument
);
3059 staticpro (&Qargs_out_of_range
);
3060 staticpro (&Qvoid_function
);
3061 staticpro (&Qcyclic_function_indirection
);
3062 staticpro (&Qvoid_variable
);
3063 staticpro (&Qsetting_constant
);
3064 staticpro (&Qinvalid_read_syntax
);
3065 staticpro (&Qwrong_number_of_arguments
);
3066 staticpro (&Qinvalid_function
);
3067 staticpro (&Qno_catch
);
3068 staticpro (&Qend_of_file
);
3069 staticpro (&Qarith_error
);
3070 staticpro (&Qbeginning_of_buffer
);
3071 staticpro (&Qend_of_buffer
);
3072 staticpro (&Qbuffer_read_only
);
3073 staticpro (&Qtext_read_only
);
3074 staticpro (&Qmark_inactive
);
3076 staticpro (&Qlistp
);
3077 staticpro (&Qconsp
);
3078 staticpro (&Qsymbolp
);
3079 staticpro (&Qkeywordp
);
3080 staticpro (&Qintegerp
);
3081 staticpro (&Qnatnump
);
3082 staticpro (&Qwholenump
);
3083 staticpro (&Qstringp
);
3084 staticpro (&Qarrayp
);
3085 staticpro (&Qsequencep
);
3086 staticpro (&Qbufferp
);
3087 staticpro (&Qvectorp
);
3088 staticpro (&Qchar_or_string_p
);
3089 staticpro (&Qmarkerp
);
3090 staticpro (&Qbuffer_or_string_p
);
3091 staticpro (&Qinteger_or_marker_p
);
3092 staticpro (&Qfloatp
);
3093 staticpro (&Qnumberp
);
3094 staticpro (&Qnumber_or_marker_p
);
3095 staticpro (&Qchar_table_p
);
3096 staticpro (&Qvector_or_char_table_p
);
3097 staticpro (&Qsubrp
);
3099 staticpro (&Qunevalled
);
3101 staticpro (&Qboundp
);
3102 staticpro (&Qfboundp
);
3104 staticpro (&Qad_advice_info
);
3105 staticpro (&Qad_activate_internal
);
3107 /* Types that type-of returns. */
3108 Qinteger
= intern ("integer");
3109 Qsymbol
= intern ("symbol");
3110 Qstring
= intern ("string");
3111 Qcons
= intern ("cons");
3112 Qmarker
= intern ("marker");
3113 Qoverlay
= intern ("overlay");
3114 Qfloat
= intern ("float");
3115 Qwindow_configuration
= intern ("window-configuration");
3116 Qprocess
= intern ("process");
3117 Qwindow
= intern ("window");
3118 /* Qsubr = intern ("subr"); */
3119 Qcompiled_function
= intern ("compiled-function");
3120 Qbuffer
= intern ("buffer");
3121 Qframe
= intern ("frame");
3122 Qvector
= intern ("vector");
3123 Qchar_table
= intern ("char-table");
3124 Qbool_vector
= intern ("bool-vector");
3125 Qhash_table
= intern ("hash-table");
3127 staticpro (&Qinteger
);
3128 staticpro (&Qsymbol
);
3129 staticpro (&Qstring
);
3131 staticpro (&Qmarker
);
3132 staticpro (&Qoverlay
);
3133 staticpro (&Qfloat
);
3134 staticpro (&Qwindow_configuration
);
3135 staticpro (&Qprocess
);
3136 staticpro (&Qwindow
);
3137 /* staticpro (&Qsubr); */
3138 staticpro (&Qcompiled_function
);
3139 staticpro (&Qbuffer
);
3140 staticpro (&Qframe
);
3141 staticpro (&Qvector
);
3142 staticpro (&Qchar_table
);
3143 staticpro (&Qbool_vector
);
3144 staticpro (&Qhash_table
);
3146 defsubr (&Sindirect_variable
);
3147 defsubr (&Sinteractive_form
);
3150 defsubr (&Stype_of
);
3155 defsubr (&Sintegerp
);
3156 defsubr (&Sinteger_or_marker_p
);
3157 defsubr (&Snumberp
);
3158 defsubr (&Snumber_or_marker_p
);
3160 defsubr (&Snatnump
);
3161 defsubr (&Ssymbolp
);
3162 defsubr (&Skeywordp
);
3163 defsubr (&Sstringp
);
3164 defsubr (&Smultibyte_string_p
);
3165 defsubr (&Svectorp
);
3166 defsubr (&Schar_table_p
);
3167 defsubr (&Svector_or_char_table_p
);
3168 defsubr (&Sbool_vector_p
);
3170 defsubr (&Ssequencep
);
3171 defsubr (&Sbufferp
);
3172 defsubr (&Smarkerp
);
3174 defsubr (&Sbyte_code_function_p
);
3175 defsubr (&Schar_or_string_p
);
3178 defsubr (&Scar_safe
);
3179 defsubr (&Scdr_safe
);
3182 defsubr (&Ssymbol_function
);
3183 defsubr (&Sindirect_function
);
3184 defsubr (&Ssymbol_plist
);
3185 defsubr (&Ssymbol_name
);
3186 defsubr (&Smakunbound
);
3187 defsubr (&Sfmakunbound
);
3189 defsubr (&Sfboundp
);
3191 defsubr (&Sdefalias
);
3192 defsubr (&Ssetplist
);
3193 defsubr (&Ssymbol_value
);
3195 defsubr (&Sdefault_boundp
);
3196 defsubr (&Sdefault_value
);
3197 defsubr (&Sset_default
);
3198 defsubr (&Ssetq_default
);
3199 defsubr (&Smake_variable_buffer_local
);
3200 defsubr (&Smake_local_variable
);
3201 defsubr (&Skill_local_variable
);
3202 defsubr (&Smake_variable_frame_local
);
3203 defsubr (&Slocal_variable_p
);
3204 defsubr (&Slocal_variable_if_set_p
);
3205 defsubr (&Svariable_binding_locus
);
3208 defsubr (&Snumber_to_string
);
3209 defsubr (&Sstring_to_number
);
3210 defsubr (&Seqlsign
);
3233 defsubr (&Sbyteorder
);
3234 defsubr (&Ssubr_arity
);
3235 defsubr (&Ssubr_name
);
3237 XSYMBOL (Qwholenump
)->function
= XSYMBOL (Qnatnump
)->function
;
3239 DEFVAR_LISP ("most-positive-fixnum", &Vmost_positive_fixnum
,
3240 doc
: /* The largest value that is representable in a Lisp integer. */);
3241 Vmost_positive_fixnum
= make_number (MOST_POSITIVE_FIXNUM
);
3243 DEFVAR_LISP ("most-negative-fixnum", &Vmost_negative_fixnum
,
3244 doc
: /* The smallest value that is representable in a Lisp integer. */);
3245 Vmost_negative_fixnum
= make_number (MOST_NEGATIVE_FIXNUM
);
3252 #if defined(USG) && !defined(POSIX_SIGNALS)
3253 /* USG systems forget handlers when they are used;
3254 must reestablish each time */
3255 signal (signo
, arith_error
);
3258 /* VMS systems are like USG. */
3259 signal (signo
, arith_error
);
3263 #else /* not BSD4_1 */
3264 sigsetmask (SIGEMPTYMASK
);
3265 #endif /* not BSD4_1 */
3267 Fsignal (Qarith_error
, Qnil
);
3273 /* Don't do this if just dumping out.
3274 We don't want to call `signal' in this case
3275 so that we don't have trouble with dumping
3276 signal-delivering routines in an inconsistent state. */
3280 #endif /* CANNOT_DUMP */
3281 signal (SIGFPE
, arith_error
);
3284 signal (SIGEMT
, arith_error
);
3288 /* arch-tag: 25879798-b84d-479a-9c89-7d148e2109f7
3289 (do not change this comment) */