1 /* Primitive operations on Lisp data types for GNU Emacs Lisp interpreter.
2 Copyright (C) 1985, 1986, 1988, 1993, 1994, 1995, 1997, 1998, 1999, 2000,
3 2001, 2002, 2003, 2004, 2005 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., 51 Franklin Street, Fifth Floor,
20 Boston, MA 02110-1301, 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 CHECK_SYMBOL (symbol
);
723 if (CONSP (XSYMBOL (symbol
)->function
)
724 && EQ (XCAR (XSYMBOL (symbol
)->function
), Qautoload
))
725 LOADHIST_ATTACH (Fcons (Qt
, symbol
));
726 definition
= Ffset (symbol
, definition
);
727 LOADHIST_ATTACH (Fcons (Qdefun
, symbol
));
728 if (!NILP (docstring
))
729 Fput (symbol
, Qfunction_documentation
, docstring
);
733 DEFUN ("setplist", Fsetplist
, Ssetplist
, 2, 2, 0,
734 doc
: /* Set SYMBOL's property list to NEWPLIST, and return NEWPLIST. */)
736 register Lisp_Object symbol
, newplist
;
738 CHECK_SYMBOL (symbol
);
739 XSYMBOL (symbol
)->plist
= newplist
;
743 DEFUN ("subr-arity", Fsubr_arity
, Ssubr_arity
, 1, 1, 0,
744 doc
: /* Return minimum and maximum number of args allowed for SUBR.
745 SUBR must be a built-in function.
746 The returned value is a pair (MIN . MAX). MIN is the minimum number
747 of args. MAX is the maximum number or the symbol `many', for a
748 function with `&rest' args, or `unevalled' for a special form. */)
752 short minargs
, maxargs
;
754 wrong_type_argument (Qsubrp
, subr
);
755 minargs
= XSUBR (subr
)->min_args
;
756 maxargs
= XSUBR (subr
)->max_args
;
758 return Fcons (make_number (minargs
), Qmany
);
759 else if (maxargs
== UNEVALLED
)
760 return Fcons (make_number (minargs
), Qunevalled
);
762 return Fcons (make_number (minargs
), make_number (maxargs
));
765 DEFUN ("subr-name", Fsubr_name
, Ssubr_name
, 1, 1, 0,
766 doc
: /* Return name of subroutine SUBR.
767 SUBR must be a built-in function. */)
773 wrong_type_argument (Qsubrp
, subr
);
774 name
= XSUBR (subr
)->symbol_name
;
775 return make_string (name
, strlen (name
));
778 DEFUN ("interactive-form", Finteractive_form
, Sinteractive_form
, 1, 1, 0,
779 doc
: /* Return the interactive form of CMD or nil if none.
780 If CMD is not a command, the return value is nil.
781 Value, if non-nil, is a list \(interactive SPEC). */)
785 Lisp_Object fun
= indirect_function (cmd
);
789 if (XSUBR (fun
)->prompt
)
790 return list2 (Qinteractive
, build_string (XSUBR (fun
)->prompt
));
792 else if (COMPILEDP (fun
))
794 if ((ASIZE (fun
) & PSEUDOVECTOR_SIZE_MASK
) > COMPILED_INTERACTIVE
)
795 return list2 (Qinteractive
, AREF (fun
, COMPILED_INTERACTIVE
));
797 else if (CONSP (fun
))
799 Lisp_Object funcar
= XCAR (fun
);
800 if (EQ (funcar
, Qlambda
))
801 return Fassq (Qinteractive
, Fcdr (XCDR (fun
)));
802 else if (EQ (funcar
, Qautoload
))
806 do_autoload (fun
, cmd
);
808 return Finteractive_form (cmd
);
815 /***********************************************************************
816 Getting and Setting Values of Symbols
817 ***********************************************************************/
819 /* Return the symbol holding SYMBOL's value. Signal
820 `cyclic-variable-indirection' if SYMBOL's chain of variable
821 indirections contains a loop. */
824 indirect_variable (symbol
)
827 Lisp_Object tortoise
, hare
;
829 hare
= tortoise
= symbol
;
831 while (XSYMBOL (hare
)->indirect_variable
)
833 hare
= XSYMBOL (hare
)->value
;
834 if (!XSYMBOL (hare
)->indirect_variable
)
837 hare
= XSYMBOL (hare
)->value
;
838 tortoise
= XSYMBOL (tortoise
)->value
;
840 if (EQ (hare
, tortoise
))
841 Fsignal (Qcyclic_variable_indirection
, Fcons (symbol
, Qnil
));
848 DEFUN ("indirect-variable", Findirect_variable
, Sindirect_variable
, 1, 1, 0,
849 doc
: /* Return the variable at the end of OBJECT's variable chain.
850 If OBJECT is a symbol, follow all variable indirections and return the final
851 variable. If OBJECT is not a symbol, just return it.
852 Signal a cyclic-variable-indirection error if there is a loop in the
853 variable chain of symbols. */)
857 if (SYMBOLP (object
))
858 object
= indirect_variable (object
);
863 /* Given the raw contents of a symbol value cell,
864 return the Lisp value of the symbol.
865 This does not handle buffer-local variables; use
866 swap_in_symval_forwarding for that. */
869 do_symval_forwarding (valcontents
)
870 register Lisp_Object valcontents
;
872 register Lisp_Object val
;
874 if (MISCP (valcontents
))
875 switch (XMISCTYPE (valcontents
))
877 case Lisp_Misc_Intfwd
:
878 XSETINT (val
, *XINTFWD (valcontents
)->intvar
);
881 case Lisp_Misc_Boolfwd
:
882 return (*XBOOLFWD (valcontents
)->boolvar
? Qt
: Qnil
);
884 case Lisp_Misc_Objfwd
:
885 return *XOBJFWD (valcontents
)->objvar
;
887 case Lisp_Misc_Buffer_Objfwd
:
888 offset
= XBUFFER_OBJFWD (valcontents
)->offset
;
889 return PER_BUFFER_VALUE (current_buffer
, offset
);
891 case Lisp_Misc_Kboard_Objfwd
:
892 offset
= XKBOARD_OBJFWD (valcontents
)->offset
;
893 return *(Lisp_Object
*)(offset
+ (char *)current_kboard
);
898 /* Store NEWVAL into SYMBOL, where VALCONTENTS is found in the value cell
899 of SYMBOL. If SYMBOL is buffer-local, VALCONTENTS should be the
900 buffer-independent contents of the value cell: forwarded just one
901 step past the buffer-localness.
903 BUF non-zero means set the value in buffer BUF instead of the
904 current buffer. This only plays a role for per-buffer variables. */
907 store_symval_forwarding (symbol
, valcontents
, newval
, buf
)
909 register Lisp_Object valcontents
, newval
;
912 switch (SWITCH_ENUM_CAST (XTYPE (valcontents
)))
915 switch (XMISCTYPE (valcontents
))
917 case Lisp_Misc_Intfwd
:
918 CHECK_NUMBER (newval
);
919 *XINTFWD (valcontents
)->intvar
= XINT (newval
);
920 if (*XINTFWD (valcontents
)->intvar
!= XINT (newval
))
921 error ("Value out of range for variable `%s'",
922 SDATA (SYMBOL_NAME (symbol
)));
925 case Lisp_Misc_Boolfwd
:
926 *XBOOLFWD (valcontents
)->boolvar
= NILP (newval
) ? 0 : 1;
929 case Lisp_Misc_Objfwd
:
930 *XOBJFWD (valcontents
)->objvar
= newval
;
932 /* If this variable is a default for something stored
933 in the buffer itself, such as default-fill-column,
934 find the buffers that don't have local values for it
936 if (XOBJFWD (valcontents
)->objvar
> (Lisp_Object
*) &buffer_defaults
937 && XOBJFWD (valcontents
)->objvar
< (Lisp_Object
*) (&buffer_defaults
+ 1))
939 int offset
= ((char *) XOBJFWD (valcontents
)->objvar
940 - (char *) &buffer_defaults
);
941 int idx
= PER_BUFFER_IDX (offset
);
948 for (tail
= Vbuffer_alist
; CONSP (tail
); tail
= XCDR (tail
))
953 buf
= Fcdr (XCAR (tail
));
954 if (!BUFFERP (buf
)) continue;
957 if (! PER_BUFFER_VALUE_P (b
, idx
))
958 PER_BUFFER_VALUE (b
, offset
) = newval
;
963 case Lisp_Misc_Buffer_Objfwd
:
965 int offset
= XBUFFER_OBJFWD (valcontents
)->offset
;
968 type
= PER_BUFFER_TYPE (offset
);
969 if (! NILP (type
) && ! NILP (newval
)
970 && XTYPE (newval
) != XINT (type
))
971 buffer_slot_type_mismatch (offset
);
974 buf
= current_buffer
;
975 PER_BUFFER_VALUE (buf
, offset
) = newval
;
979 case Lisp_Misc_Kboard_Objfwd
:
981 char *base
= (char *) current_kboard
;
982 char *p
= base
+ XKBOARD_OBJFWD (valcontents
)->offset
;
983 *(Lisp_Object
*) p
= newval
;
994 valcontents
= SYMBOL_VALUE (symbol
);
995 if (BUFFER_LOCAL_VALUEP (valcontents
)
996 || SOME_BUFFER_LOCAL_VALUEP (valcontents
))
997 XBUFFER_LOCAL_VALUE (valcontents
)->realvalue
= newval
;
999 SET_SYMBOL_VALUE (symbol
, newval
);
1003 /* Set up SYMBOL to refer to its global binding.
1004 This makes it safe to alter the status of other bindings. */
1007 swap_in_global_binding (symbol
)
1010 Lisp_Object valcontents
, cdr
;
1012 valcontents
= SYMBOL_VALUE (symbol
);
1013 if (!BUFFER_LOCAL_VALUEP (valcontents
)
1014 && !SOME_BUFFER_LOCAL_VALUEP (valcontents
))
1016 cdr
= XBUFFER_LOCAL_VALUE (valcontents
)->cdr
;
1018 /* Unload the previously loaded binding. */
1019 Fsetcdr (XCAR (cdr
),
1020 do_symval_forwarding (XBUFFER_LOCAL_VALUE (valcontents
)->realvalue
));
1022 /* Select the global binding in the symbol. */
1024 store_symval_forwarding (symbol
, valcontents
, XCDR (cdr
), NULL
);
1026 /* Indicate that the global binding is set up now. */
1027 XBUFFER_LOCAL_VALUE (valcontents
)->frame
= Qnil
;
1028 XBUFFER_LOCAL_VALUE (valcontents
)->buffer
= Qnil
;
1029 XBUFFER_LOCAL_VALUE (valcontents
)->found_for_frame
= 0;
1030 XBUFFER_LOCAL_VALUE (valcontents
)->found_for_buffer
= 0;
1033 /* Set up the buffer-local symbol SYMBOL for validity in the current buffer.
1034 VALCONTENTS is the contents of its value cell,
1035 which points to a struct Lisp_Buffer_Local_Value.
1037 Return the value forwarded one step past the buffer-local stage.
1038 This could be another forwarding pointer. */
1041 swap_in_symval_forwarding (symbol
, valcontents
)
1042 Lisp_Object symbol
, valcontents
;
1044 register Lisp_Object tem1
;
1046 tem1
= XBUFFER_LOCAL_VALUE (valcontents
)->buffer
;
1049 || current_buffer
!= XBUFFER (tem1
)
1050 || (XBUFFER_LOCAL_VALUE (valcontents
)->check_frame
1051 && ! EQ (selected_frame
, XBUFFER_LOCAL_VALUE (valcontents
)->frame
)))
1053 if (XSYMBOL (symbol
)->indirect_variable
)
1054 symbol
= indirect_variable (symbol
);
1056 /* Unload the previously loaded binding. */
1057 tem1
= XCAR (XBUFFER_LOCAL_VALUE (valcontents
)->cdr
);
1059 do_symval_forwarding (XBUFFER_LOCAL_VALUE (valcontents
)->realvalue
));
1060 /* Choose the new binding. */
1061 tem1
= assq_no_quit (symbol
, current_buffer
->local_var_alist
);
1062 XBUFFER_LOCAL_VALUE (valcontents
)->found_for_frame
= 0;
1063 XBUFFER_LOCAL_VALUE (valcontents
)->found_for_buffer
= 0;
1066 if (XBUFFER_LOCAL_VALUE (valcontents
)->check_frame
)
1067 tem1
= assq_no_quit (symbol
, XFRAME (selected_frame
)->param_alist
);
1069 XBUFFER_LOCAL_VALUE (valcontents
)->found_for_frame
= 1;
1071 tem1
= XBUFFER_LOCAL_VALUE (valcontents
)->cdr
;
1074 XBUFFER_LOCAL_VALUE (valcontents
)->found_for_buffer
= 1;
1076 /* Load the new binding. */
1077 XSETCAR (XBUFFER_LOCAL_VALUE (valcontents
)->cdr
, tem1
);
1078 XSETBUFFER (XBUFFER_LOCAL_VALUE (valcontents
)->buffer
, current_buffer
);
1079 XBUFFER_LOCAL_VALUE (valcontents
)->frame
= selected_frame
;
1080 store_symval_forwarding (symbol
,
1081 XBUFFER_LOCAL_VALUE (valcontents
)->realvalue
,
1084 return XBUFFER_LOCAL_VALUE (valcontents
)->realvalue
;
1087 /* Find the value of a symbol, returning Qunbound if it's not bound.
1088 This is helpful for code which just wants to get a variable's value
1089 if it has one, without signaling an error.
1090 Note that it must not be possible to quit
1091 within this function. Great care is required for this. */
1094 find_symbol_value (symbol
)
1097 register Lisp_Object valcontents
;
1098 register Lisp_Object val
;
1100 CHECK_SYMBOL (symbol
);
1101 valcontents
= SYMBOL_VALUE (symbol
);
1103 if (BUFFER_LOCAL_VALUEP (valcontents
)
1104 || SOME_BUFFER_LOCAL_VALUEP (valcontents
))
1105 valcontents
= swap_in_symval_forwarding (symbol
, valcontents
);
1107 if (MISCP (valcontents
))
1109 switch (XMISCTYPE (valcontents
))
1111 case Lisp_Misc_Intfwd
:
1112 XSETINT (val
, *XINTFWD (valcontents
)->intvar
);
1115 case Lisp_Misc_Boolfwd
:
1116 return (*XBOOLFWD (valcontents
)->boolvar
? Qt
: Qnil
);
1118 case Lisp_Misc_Objfwd
:
1119 return *XOBJFWD (valcontents
)->objvar
;
1121 case Lisp_Misc_Buffer_Objfwd
:
1122 return PER_BUFFER_VALUE (current_buffer
,
1123 XBUFFER_OBJFWD (valcontents
)->offset
);
1125 case Lisp_Misc_Kboard_Objfwd
:
1126 return *(Lisp_Object
*)(XKBOARD_OBJFWD (valcontents
)->offset
1127 + (char *)current_kboard
);
1134 DEFUN ("symbol-value", Fsymbol_value
, Ssymbol_value
, 1, 1, 0,
1135 doc
: /* Return SYMBOL's value. Error if that is void. */)
1141 val
= find_symbol_value (symbol
);
1142 if (EQ (val
, Qunbound
))
1143 return Fsignal (Qvoid_variable
, Fcons (symbol
, Qnil
));
1148 DEFUN ("set", Fset
, Sset
, 2, 2, 0,
1149 doc
: /* Set SYMBOL's value to NEWVAL, and return NEWVAL. */)
1151 register Lisp_Object symbol
, newval
;
1153 return set_internal (symbol
, newval
, current_buffer
, 0);
1156 /* Return 1 if SYMBOL currently has a let-binding
1157 which was made in the buffer that is now current. */
1160 let_shadows_buffer_binding_p (symbol
)
1163 volatile struct specbinding
*p
;
1165 for (p
= specpdl_ptr
- 1; p
>= specpdl
; p
--)
1167 && CONSP (p
->symbol
))
1169 Lisp_Object let_bound_symbol
= XCAR (p
->symbol
);
1170 if ((EQ (symbol
, let_bound_symbol
)
1171 || (XSYMBOL (let_bound_symbol
)->indirect_variable
1172 && EQ (symbol
, indirect_variable (let_bound_symbol
))))
1173 && XBUFFER (XCDR (XCDR (p
->symbol
))) == current_buffer
)
1177 return p
>= specpdl
;
1180 /* Store the value NEWVAL into SYMBOL.
1181 If buffer-locality is an issue, BUF specifies which buffer to use.
1182 (0 stands for the current buffer.)
1184 If BINDFLAG is zero, then if this symbol is supposed to become
1185 local in every buffer where it is set, then we make it local.
1186 If BINDFLAG is nonzero, we don't do that. */
1189 set_internal (symbol
, newval
, buf
, bindflag
)
1190 register Lisp_Object symbol
, newval
;
1194 int voide
= EQ (newval
, Qunbound
);
1196 register Lisp_Object valcontents
, innercontents
, tem1
, current_alist_element
;
1199 buf
= current_buffer
;
1201 /* If restoring in a dead buffer, do nothing. */
1202 if (NILP (buf
->name
))
1205 CHECK_SYMBOL (symbol
);
1206 if (SYMBOL_CONSTANT_P (symbol
)
1207 && (NILP (Fkeywordp (symbol
))
1208 || !EQ (newval
, SYMBOL_VALUE (symbol
))))
1209 return Fsignal (Qsetting_constant
, Fcons (symbol
, Qnil
));
1211 innercontents
= valcontents
= SYMBOL_VALUE (symbol
);
1213 if (BUFFER_OBJFWDP (valcontents
))
1215 int offset
= XBUFFER_OBJFWD (valcontents
)->offset
;
1216 int idx
= PER_BUFFER_IDX (offset
);
1219 && !let_shadows_buffer_binding_p (symbol
))
1220 SET_PER_BUFFER_VALUE_P (buf
, idx
, 1);
1222 else if (BUFFER_LOCAL_VALUEP (valcontents
)
1223 || SOME_BUFFER_LOCAL_VALUEP (valcontents
))
1225 /* valcontents is a struct Lisp_Buffer_Local_Value. */
1226 if (XSYMBOL (symbol
)->indirect_variable
)
1227 symbol
= indirect_variable (symbol
);
1229 /* What binding is loaded right now? */
1230 current_alist_element
1231 = XCAR (XBUFFER_LOCAL_VALUE (valcontents
)->cdr
);
1233 /* If the current buffer is not the buffer whose binding is
1234 loaded, or if there may be frame-local bindings and the frame
1235 isn't the right one, or if it's a Lisp_Buffer_Local_Value and
1236 the default binding is loaded, the loaded binding may be the
1238 if (!BUFFERP (XBUFFER_LOCAL_VALUE (valcontents
)->buffer
)
1239 || buf
!= XBUFFER (XBUFFER_LOCAL_VALUE (valcontents
)->buffer
)
1240 || (XBUFFER_LOCAL_VALUE (valcontents
)->check_frame
1241 && !EQ (selected_frame
, XBUFFER_LOCAL_VALUE (valcontents
)->frame
))
1242 || (BUFFER_LOCAL_VALUEP (valcontents
)
1243 && EQ (XCAR (current_alist_element
),
1244 current_alist_element
)))
1246 /* The currently loaded binding is not necessarily valid.
1247 We need to unload it, and choose a new binding. */
1249 /* Write out `realvalue' to the old loaded binding. */
1250 Fsetcdr (current_alist_element
,
1251 do_symval_forwarding (XBUFFER_LOCAL_VALUE (valcontents
)->realvalue
));
1253 /* Find the new binding. */
1254 tem1
= Fassq (symbol
, buf
->local_var_alist
);
1255 XBUFFER_LOCAL_VALUE (valcontents
)->found_for_buffer
= 1;
1256 XBUFFER_LOCAL_VALUE (valcontents
)->found_for_frame
= 0;
1260 /* This buffer still sees the default value. */
1262 /* If the variable is a Lisp_Some_Buffer_Local_Value,
1263 or if this is `let' rather than `set',
1264 make CURRENT-ALIST-ELEMENT point to itself,
1265 indicating that we're seeing the default value.
1266 Likewise if the variable has been let-bound
1267 in the current buffer. */
1268 if (bindflag
|| SOME_BUFFER_LOCAL_VALUEP (valcontents
)
1269 || let_shadows_buffer_binding_p (symbol
))
1271 XBUFFER_LOCAL_VALUE (valcontents
)->found_for_buffer
= 0;
1273 if (XBUFFER_LOCAL_VALUE (valcontents
)->check_frame
)
1274 tem1
= Fassq (symbol
,
1275 XFRAME (selected_frame
)->param_alist
);
1278 XBUFFER_LOCAL_VALUE (valcontents
)->found_for_frame
= 1;
1280 tem1
= XBUFFER_LOCAL_VALUE (valcontents
)->cdr
;
1282 /* If it's a Lisp_Buffer_Local_Value, being set not bound,
1283 and we're not within a let that was made for this buffer,
1284 create a new buffer-local binding for the variable.
1285 That means, give this buffer a new assoc for a local value
1286 and load that binding. */
1289 tem1
= Fcons (symbol
, XCDR (current_alist_element
));
1290 buf
->local_var_alist
1291 = Fcons (tem1
, buf
->local_var_alist
);
1295 /* Record which binding is now loaded. */
1296 XSETCAR (XBUFFER_LOCAL_VALUE (valcontents
)->cdr
,
1299 /* Set `buffer' and `frame' slots for thebinding now loaded. */
1300 XSETBUFFER (XBUFFER_LOCAL_VALUE (valcontents
)->buffer
, buf
);
1301 XBUFFER_LOCAL_VALUE (valcontents
)->frame
= selected_frame
;
1303 innercontents
= XBUFFER_LOCAL_VALUE (valcontents
)->realvalue
;
1306 /* If storing void (making the symbol void), forward only through
1307 buffer-local indicator, not through Lisp_Objfwd, etc. */
1309 store_symval_forwarding (symbol
, Qnil
, newval
, buf
);
1311 store_symval_forwarding (symbol
, innercontents
, newval
, buf
);
1313 /* If we just set a variable whose current binding is frame-local,
1314 store the new value in the frame parameter too. */
1316 if (BUFFER_LOCAL_VALUEP (valcontents
)
1317 || SOME_BUFFER_LOCAL_VALUEP (valcontents
))
1319 /* What binding is loaded right now? */
1320 current_alist_element
1321 = XCAR (XBUFFER_LOCAL_VALUE (valcontents
)->cdr
);
1323 /* If the current buffer is not the buffer whose binding is
1324 loaded, or if there may be frame-local bindings and the frame
1325 isn't the right one, or if it's a Lisp_Buffer_Local_Value and
1326 the default binding is loaded, the loaded binding may be the
1328 if (XBUFFER_LOCAL_VALUE (valcontents
)->found_for_frame
)
1329 XSETCDR (current_alist_element
, newval
);
1335 /* Access or set a buffer-local symbol's default value. */
1337 /* Return the default value of SYMBOL, but don't check for voidness.
1338 Return Qunbound if it is void. */
1341 default_value (symbol
)
1344 register Lisp_Object valcontents
;
1346 CHECK_SYMBOL (symbol
);
1347 valcontents
= SYMBOL_VALUE (symbol
);
1349 /* For a built-in buffer-local variable, get the default value
1350 rather than letting do_symval_forwarding get the current value. */
1351 if (BUFFER_OBJFWDP (valcontents
))
1353 int offset
= XBUFFER_OBJFWD (valcontents
)->offset
;
1354 if (PER_BUFFER_IDX (offset
) != 0)
1355 return PER_BUFFER_DEFAULT (offset
);
1358 /* Handle user-created local variables. */
1359 if (BUFFER_LOCAL_VALUEP (valcontents
)
1360 || SOME_BUFFER_LOCAL_VALUEP (valcontents
))
1362 /* If var is set up for a buffer that lacks a local value for it,
1363 the current value is nominally the default value.
1364 But the `realvalue' slot may be more up to date, since
1365 ordinary setq stores just that slot. So use that. */
1366 Lisp_Object current_alist_element
, alist_element_car
;
1367 current_alist_element
1368 = XCAR (XBUFFER_LOCAL_VALUE (valcontents
)->cdr
);
1369 alist_element_car
= XCAR (current_alist_element
);
1370 if (EQ (alist_element_car
, current_alist_element
))
1371 return do_symval_forwarding (XBUFFER_LOCAL_VALUE (valcontents
)->realvalue
);
1373 return XCDR (XBUFFER_LOCAL_VALUE (valcontents
)->cdr
);
1375 /* For other variables, get the current value. */
1376 return do_symval_forwarding (valcontents
);
1379 DEFUN ("default-boundp", Fdefault_boundp
, Sdefault_boundp
, 1, 1, 0,
1380 doc
: /* Return t if SYMBOL has a non-void default value.
1381 This is the value that is seen in buffers that do not have their own values
1382 for this variable. */)
1386 register Lisp_Object value
;
1388 value
= default_value (symbol
);
1389 return (EQ (value
, Qunbound
) ? Qnil
: Qt
);
1392 DEFUN ("default-value", Fdefault_value
, Sdefault_value
, 1, 1, 0,
1393 doc
: /* Return SYMBOL's default value.
1394 This is the value that is seen in buffers that do not have their own values
1395 for this variable. The default value is meaningful for variables with
1396 local bindings in certain buffers. */)
1400 register Lisp_Object value
;
1402 value
= default_value (symbol
);
1403 if (EQ (value
, Qunbound
))
1404 return Fsignal (Qvoid_variable
, Fcons (symbol
, Qnil
));
1408 DEFUN ("set-default", Fset_default
, Sset_default
, 2, 2, 0,
1409 doc
: /* Set SYMBOL's default value to VALUE. SYMBOL and VALUE are evaluated.
1410 The default value is seen in buffers that do not have their own values
1411 for this variable. */)
1413 Lisp_Object symbol
, value
;
1415 register Lisp_Object valcontents
, current_alist_element
, alist_element_buffer
;
1417 CHECK_SYMBOL (symbol
);
1418 valcontents
= SYMBOL_VALUE (symbol
);
1420 /* Handle variables like case-fold-search that have special slots
1421 in the buffer. Make them work apparently like Lisp_Buffer_Local_Value
1423 if (BUFFER_OBJFWDP (valcontents
))
1425 int offset
= XBUFFER_OBJFWD (valcontents
)->offset
;
1426 int idx
= PER_BUFFER_IDX (offset
);
1428 PER_BUFFER_DEFAULT (offset
) = value
;
1430 /* If this variable is not always local in all buffers,
1431 set it in the buffers that don't nominally have a local value. */
1436 for (b
= all_buffers
; b
; b
= b
->next
)
1437 if (!PER_BUFFER_VALUE_P (b
, idx
))
1438 PER_BUFFER_VALUE (b
, offset
) = value
;
1443 if (!BUFFER_LOCAL_VALUEP (valcontents
)
1444 && !SOME_BUFFER_LOCAL_VALUEP (valcontents
))
1445 return Fset (symbol
, value
);
1447 /* Store new value into the DEFAULT-VALUE slot. */
1448 XSETCDR (XBUFFER_LOCAL_VALUE (valcontents
)->cdr
, value
);
1450 /* If the default binding is now loaded, set the REALVALUE slot too. */
1451 current_alist_element
1452 = XCAR (XBUFFER_LOCAL_VALUE (valcontents
)->cdr
);
1453 alist_element_buffer
= Fcar (current_alist_element
);
1454 if (EQ (alist_element_buffer
, current_alist_element
))
1455 store_symval_forwarding (symbol
,
1456 XBUFFER_LOCAL_VALUE (valcontents
)->realvalue
,
1462 DEFUN ("setq-default", Fsetq_default
, Ssetq_default
, 0, UNEVALLED
, 0,
1463 doc
: /* Set the default value of variable VAR to VALUE.
1464 VAR, the variable name, is literal (not evaluated);
1465 VALUE is an expression: it is evaluated and its value returned.
1466 The default value of a variable is seen in buffers
1467 that do not have their own values for the variable.
1469 More generally, you can use multiple variables and values, as in
1470 (setq-default VAR VALUE VAR VALUE...)
1471 This sets each VAR's default value to the corresponding VALUE.
1472 The VALUE for the Nth VAR can refer to the new default values
1474 usage: (setq-default [VAR VALUE...]) */)
1478 register Lisp_Object args_left
;
1479 register Lisp_Object val
, symbol
;
1480 struct gcpro gcpro1
;
1490 val
= Feval (Fcar (Fcdr (args_left
)));
1491 symbol
= XCAR (args_left
);
1492 Fset_default (symbol
, val
);
1493 args_left
= Fcdr (XCDR (args_left
));
1495 while (!NILP (args_left
));
1501 /* Lisp functions for creating and removing buffer-local variables. */
1503 DEFUN ("make-variable-buffer-local", Fmake_variable_buffer_local
, Smake_variable_buffer_local
,
1504 1, 1, "vMake Variable Buffer Local: ",
1505 doc
: /* Make VARIABLE become buffer-local whenever it is set.
1506 At any time, the value for the current buffer is in effect,
1507 unless the variable has never been set in this buffer,
1508 in which case the default value is in effect.
1509 Note that binding the variable with `let', or setting it while
1510 a `let'-style binding made in this buffer is in effect,
1511 does not make the variable buffer-local. Return VARIABLE.
1513 In most cases it is better to use `make-local-variable',
1514 which makes a variable local in just one buffer.
1516 The function `default-value' gets the default value and `set-default' sets it. */)
1518 register Lisp_Object variable
;
1520 register Lisp_Object tem
, valcontents
, newval
;
1522 CHECK_SYMBOL (variable
);
1523 variable
= indirect_variable (variable
);
1525 valcontents
= SYMBOL_VALUE (variable
);
1526 if (EQ (variable
, Qnil
) || EQ (variable
, Qt
) || KBOARD_OBJFWDP (valcontents
))
1527 error ("Symbol %s may not be buffer-local", SDATA (SYMBOL_NAME (variable
)));
1529 if (BUFFER_LOCAL_VALUEP (valcontents
) || BUFFER_OBJFWDP (valcontents
))
1531 if (SOME_BUFFER_LOCAL_VALUEP (valcontents
))
1533 XMISCTYPE (SYMBOL_VALUE (variable
)) = Lisp_Misc_Buffer_Local_Value
;
1536 if (EQ (valcontents
, Qunbound
))
1537 SET_SYMBOL_VALUE (variable
, Qnil
);
1538 tem
= Fcons (Qnil
, Fsymbol_value (variable
));
1540 newval
= allocate_misc ();
1541 XMISCTYPE (newval
) = Lisp_Misc_Buffer_Local_Value
;
1542 XBUFFER_LOCAL_VALUE (newval
)->realvalue
= SYMBOL_VALUE (variable
);
1543 XBUFFER_LOCAL_VALUE (newval
)->buffer
= Fcurrent_buffer ();
1544 XBUFFER_LOCAL_VALUE (newval
)->frame
= Qnil
;
1545 XBUFFER_LOCAL_VALUE (newval
)->found_for_buffer
= 0;
1546 XBUFFER_LOCAL_VALUE (newval
)->found_for_frame
= 0;
1547 XBUFFER_LOCAL_VALUE (newval
)->check_frame
= 0;
1548 XBUFFER_LOCAL_VALUE (newval
)->cdr
= tem
;
1549 SET_SYMBOL_VALUE (variable
, newval
);
1553 DEFUN ("make-local-variable", Fmake_local_variable
, Smake_local_variable
,
1554 1, 1, "vMake Local Variable: ",
1555 doc
: /* Make VARIABLE have a separate value in the current buffer.
1556 Other buffers will continue to share a common default value.
1557 \(The buffer-local value of VARIABLE starts out as the same value
1558 VARIABLE previously had. If VARIABLE was void, it remains void.\)
1561 If the variable is already arranged to become local when set,
1562 this function causes a local value to exist for this buffer,
1563 just as setting the variable would do.
1565 This function returns VARIABLE, and therefore
1566 (set (make-local-variable 'VARIABLE) VALUE-EXP)
1569 See also `make-variable-buffer-local'.
1571 Do not use `make-local-variable' to make a hook variable buffer-local.
1572 Instead, use `add-hook' and specify t for the LOCAL argument. */)
1574 register Lisp_Object variable
;
1576 register Lisp_Object tem
, valcontents
;
1578 CHECK_SYMBOL (variable
);
1579 variable
= indirect_variable (variable
);
1581 valcontents
= SYMBOL_VALUE (variable
);
1582 if (EQ (variable
, Qnil
) || EQ (variable
, Qt
) || KBOARD_OBJFWDP (valcontents
))
1583 error ("Symbol %s may not be buffer-local", SDATA (SYMBOL_NAME (variable
)));
1585 if (BUFFER_LOCAL_VALUEP (valcontents
) || BUFFER_OBJFWDP (valcontents
))
1587 tem
= Fboundp (variable
);
1589 /* Make sure the symbol has a local value in this particular buffer,
1590 by setting it to the same value it already has. */
1591 Fset (variable
, (EQ (tem
, Qt
) ? Fsymbol_value (variable
) : Qunbound
));
1594 /* Make sure symbol is set up to hold per-buffer values. */
1595 if (!SOME_BUFFER_LOCAL_VALUEP (valcontents
))
1598 tem
= Fcons (Qnil
, do_symval_forwarding (valcontents
));
1600 newval
= allocate_misc ();
1601 XMISCTYPE (newval
) = Lisp_Misc_Some_Buffer_Local_Value
;
1602 XBUFFER_LOCAL_VALUE (newval
)->realvalue
= SYMBOL_VALUE (variable
);
1603 XBUFFER_LOCAL_VALUE (newval
)->buffer
= Qnil
;
1604 XBUFFER_LOCAL_VALUE (newval
)->frame
= Qnil
;
1605 XBUFFER_LOCAL_VALUE (newval
)->found_for_buffer
= 0;
1606 XBUFFER_LOCAL_VALUE (newval
)->found_for_frame
= 0;
1607 XBUFFER_LOCAL_VALUE (newval
)->check_frame
= 0;
1608 XBUFFER_LOCAL_VALUE (newval
)->cdr
= tem
;
1609 SET_SYMBOL_VALUE (variable
, newval
);;
1611 /* Make sure this buffer has its own value of symbol. */
1612 tem
= Fassq (variable
, current_buffer
->local_var_alist
);
1615 /* Swap out any local binding for some other buffer, and make
1616 sure the current value is permanently recorded, if it's the
1618 find_symbol_value (variable
);
1620 current_buffer
->local_var_alist
1621 = Fcons (Fcons (variable
, XCDR (XBUFFER_LOCAL_VALUE (SYMBOL_VALUE (variable
))->cdr
)),
1622 current_buffer
->local_var_alist
);
1624 /* Make sure symbol does not think it is set up for this buffer;
1625 force it to look once again for this buffer's value. */
1627 Lisp_Object
*pvalbuf
;
1629 valcontents
= SYMBOL_VALUE (variable
);
1631 pvalbuf
= &XBUFFER_LOCAL_VALUE (valcontents
)->buffer
;
1632 if (current_buffer
== XBUFFER (*pvalbuf
))
1634 XBUFFER_LOCAL_VALUE (valcontents
)->found_for_buffer
= 0;
1638 /* If the symbol forwards into a C variable, then load the binding
1639 for this buffer now. If C code modifies the variable before we
1640 load the binding in, then that new value will clobber the default
1641 binding the next time we unload it. */
1642 valcontents
= XBUFFER_LOCAL_VALUE (SYMBOL_VALUE (variable
))->realvalue
;
1643 if (INTFWDP (valcontents
) || BOOLFWDP (valcontents
) || OBJFWDP (valcontents
))
1644 swap_in_symval_forwarding (variable
, SYMBOL_VALUE (variable
));
1649 DEFUN ("kill-local-variable", Fkill_local_variable
, Skill_local_variable
,
1650 1, 1, "vKill Local Variable: ",
1651 doc
: /* Make VARIABLE no longer have a separate value in the current buffer.
1652 From now on the default value will apply in this buffer. Return VARIABLE. */)
1654 register Lisp_Object variable
;
1656 register Lisp_Object tem
, valcontents
;
1658 CHECK_SYMBOL (variable
);
1659 variable
= indirect_variable (variable
);
1661 valcontents
= SYMBOL_VALUE (variable
);
1663 if (BUFFER_OBJFWDP (valcontents
))
1665 int offset
= XBUFFER_OBJFWD (valcontents
)->offset
;
1666 int idx
= PER_BUFFER_IDX (offset
);
1670 SET_PER_BUFFER_VALUE_P (current_buffer
, idx
, 0);
1671 PER_BUFFER_VALUE (current_buffer
, offset
)
1672 = PER_BUFFER_DEFAULT (offset
);
1677 if (!BUFFER_LOCAL_VALUEP (valcontents
)
1678 && !SOME_BUFFER_LOCAL_VALUEP (valcontents
))
1681 /* Get rid of this buffer's alist element, if any. */
1683 tem
= Fassq (variable
, current_buffer
->local_var_alist
);
1685 current_buffer
->local_var_alist
1686 = Fdelq (tem
, current_buffer
->local_var_alist
);
1688 /* If the symbol is set up with the current buffer's binding
1689 loaded, recompute its value. We have to do it now, or else
1690 forwarded objects won't work right. */
1692 Lisp_Object
*pvalbuf
, buf
;
1693 valcontents
= SYMBOL_VALUE (variable
);
1694 pvalbuf
= &XBUFFER_LOCAL_VALUE (valcontents
)->buffer
;
1695 XSETBUFFER (buf
, current_buffer
);
1696 if (EQ (buf
, *pvalbuf
))
1699 XBUFFER_LOCAL_VALUE (valcontents
)->found_for_buffer
= 0;
1700 find_symbol_value (variable
);
1707 /* Lisp functions for creating and removing buffer-local variables. */
1709 DEFUN ("make-variable-frame-local", Fmake_variable_frame_local
, Smake_variable_frame_local
,
1710 1, 1, "vMake Variable Frame Local: ",
1711 doc
: /* Enable VARIABLE to have frame-local bindings.
1712 This does not create any frame-local bindings for VARIABLE,
1713 it just makes them possible.
1715 A frame-local binding is actually a frame parameter value.
1716 If a frame F has a value for the frame parameter named VARIABLE,
1717 that also acts as a frame-local binding for VARIABLE in F--
1718 provided this function has been called to enable VARIABLE
1719 to have frame-local bindings at all.
1721 The only way to create a frame-local binding for VARIABLE in a frame
1722 is to set the VARIABLE frame parameter of that frame. See
1723 `modify-frame-parameters' for how to set frame parameters.
1725 Buffer-local bindings take precedence over frame-local bindings. */)
1727 register Lisp_Object variable
;
1729 register Lisp_Object tem
, valcontents
, newval
;
1731 CHECK_SYMBOL (variable
);
1732 variable
= indirect_variable (variable
);
1734 valcontents
= SYMBOL_VALUE (variable
);
1735 if (EQ (variable
, Qnil
) || EQ (variable
, Qt
) || KBOARD_OBJFWDP (valcontents
)
1736 || BUFFER_OBJFWDP (valcontents
))
1737 error ("Symbol %s may not be frame-local", SDATA (SYMBOL_NAME (variable
)));
1739 if (BUFFER_LOCAL_VALUEP (valcontents
)
1740 || SOME_BUFFER_LOCAL_VALUEP (valcontents
))
1742 XBUFFER_LOCAL_VALUE (valcontents
)->check_frame
= 1;
1746 if (EQ (valcontents
, Qunbound
))
1747 SET_SYMBOL_VALUE (variable
, Qnil
);
1748 tem
= Fcons (Qnil
, Fsymbol_value (variable
));
1750 newval
= allocate_misc ();
1751 XMISCTYPE (newval
) = Lisp_Misc_Some_Buffer_Local_Value
;
1752 XBUFFER_LOCAL_VALUE (newval
)->realvalue
= SYMBOL_VALUE (variable
);
1753 XBUFFER_LOCAL_VALUE (newval
)->buffer
= Qnil
;
1754 XBUFFER_LOCAL_VALUE (newval
)->frame
= Qnil
;
1755 XBUFFER_LOCAL_VALUE (newval
)->found_for_buffer
= 0;
1756 XBUFFER_LOCAL_VALUE (newval
)->found_for_frame
= 0;
1757 XBUFFER_LOCAL_VALUE (newval
)->check_frame
= 1;
1758 XBUFFER_LOCAL_VALUE (newval
)->cdr
= tem
;
1759 SET_SYMBOL_VALUE (variable
, newval
);
1763 DEFUN ("local-variable-p", Flocal_variable_p
, Slocal_variable_p
,
1765 doc
: /* Non-nil if VARIABLE has a local binding in buffer BUFFER.
1766 BUFFER defaults to the current buffer. */)
1768 register Lisp_Object variable
, buffer
;
1770 Lisp_Object valcontents
;
1771 register struct buffer
*buf
;
1774 buf
= current_buffer
;
1777 CHECK_BUFFER (buffer
);
1778 buf
= XBUFFER (buffer
);
1781 CHECK_SYMBOL (variable
);
1782 variable
= indirect_variable (variable
);
1784 valcontents
= SYMBOL_VALUE (variable
);
1785 if (BUFFER_LOCAL_VALUEP (valcontents
)
1786 || SOME_BUFFER_LOCAL_VALUEP (valcontents
))
1788 Lisp_Object tail
, elt
;
1790 for (tail
= buf
->local_var_alist
; CONSP (tail
); tail
= XCDR (tail
))
1793 if (EQ (variable
, XCAR (elt
)))
1797 if (BUFFER_OBJFWDP (valcontents
))
1799 int offset
= XBUFFER_OBJFWD (valcontents
)->offset
;
1800 int idx
= PER_BUFFER_IDX (offset
);
1801 if (idx
== -1 || PER_BUFFER_VALUE_P (buf
, idx
))
1807 DEFUN ("local-variable-if-set-p", Flocal_variable_if_set_p
, Slocal_variable_if_set_p
,
1809 doc
: /* Non-nil if VARIABLE will be local in buffer BUFFER when set there.
1810 More precisely, this means that setting the variable \(with `set' or`setq'),
1811 while it does not have a `let'-style binding that was made in BUFFER,
1812 will produce a buffer local binding. See Info node
1813 `(elisp)Creating Buffer-Local'.
1814 BUFFER defaults to the current buffer. */)
1816 register Lisp_Object variable
, buffer
;
1818 Lisp_Object valcontents
;
1819 register struct buffer
*buf
;
1822 buf
= current_buffer
;
1825 CHECK_BUFFER (buffer
);
1826 buf
= XBUFFER (buffer
);
1829 CHECK_SYMBOL (variable
);
1830 variable
= indirect_variable (variable
);
1832 valcontents
= SYMBOL_VALUE (variable
);
1834 /* This means that make-variable-buffer-local was done. */
1835 if (BUFFER_LOCAL_VALUEP (valcontents
))
1837 /* All these slots become local if they are set. */
1838 if (BUFFER_OBJFWDP (valcontents
))
1840 if (SOME_BUFFER_LOCAL_VALUEP (valcontents
))
1842 Lisp_Object tail
, elt
;
1843 for (tail
= buf
->local_var_alist
; CONSP (tail
); tail
= XCDR (tail
))
1846 if (EQ (variable
, XCAR (elt
)))
1853 DEFUN ("variable-binding-locus", Fvariable_binding_locus
, Svariable_binding_locus
,
1855 doc
: /* Return a value indicating where VARIABLE's current binding comes from.
1856 If the current binding is buffer-local, the value is the current buffer.
1857 If the current binding is frame-local, the value is the selected frame.
1858 If the current binding is global (the default), the value is nil. */)
1860 register Lisp_Object variable
;
1862 Lisp_Object valcontents
;
1864 CHECK_SYMBOL (variable
);
1865 variable
= indirect_variable (variable
);
1867 /* Make sure the current binding is actually swapped in. */
1868 find_symbol_value (variable
);
1870 valcontents
= XSYMBOL (variable
)->value
;
1872 if (BUFFER_LOCAL_VALUEP (valcontents
)
1873 || SOME_BUFFER_LOCAL_VALUEP (valcontents
)
1874 || BUFFER_OBJFWDP (valcontents
))
1876 /* For a local variable, record both the symbol and which
1877 buffer's or frame's value we are saving. */
1878 if (!NILP (Flocal_variable_p (variable
, Qnil
)))
1879 return Fcurrent_buffer ();
1880 else if (!BUFFER_OBJFWDP (valcontents
)
1881 && XBUFFER_LOCAL_VALUE (valcontents
)->found_for_frame
)
1882 return XBUFFER_LOCAL_VALUE (valcontents
)->frame
;
1888 /* Find the function at the end of a chain of symbol function indirections. */
1890 /* If OBJECT is a symbol, find the end of its function chain and
1891 return the value found there. If OBJECT is not a symbol, just
1892 return it. If there is a cycle in the function chain, signal a
1893 cyclic-function-indirection error.
1895 This is like Findirect_function, except that it doesn't signal an
1896 error if the chain ends up unbound. */
1898 indirect_function (object
)
1899 register Lisp_Object object
;
1901 Lisp_Object tortoise
, hare
;
1903 hare
= tortoise
= object
;
1907 if (!SYMBOLP (hare
) || EQ (hare
, Qunbound
))
1909 hare
= XSYMBOL (hare
)->function
;
1910 if (!SYMBOLP (hare
) || EQ (hare
, Qunbound
))
1912 hare
= XSYMBOL (hare
)->function
;
1914 tortoise
= XSYMBOL (tortoise
)->function
;
1916 if (EQ (hare
, tortoise
))
1917 Fsignal (Qcyclic_function_indirection
, Fcons (object
, Qnil
));
1923 DEFUN ("indirect-function", Findirect_function
, Sindirect_function
, 1, 1, 0,
1924 doc
: /* Return the function at the end of OBJECT's function chain.
1925 If OBJECT is a symbol, follow all function indirections and return the final
1927 If OBJECT is not a symbol, just return it.
1928 Signal a void-function error if the final symbol is unbound.
1929 Signal a cyclic-function-indirection error if there is a loop in the
1930 function chain of symbols. */)
1932 register Lisp_Object object
;
1936 result
= indirect_function (object
);
1938 if (EQ (result
, Qunbound
))
1939 return Fsignal (Qvoid_function
, Fcons (object
, Qnil
));
1943 /* Extract and set vector and string elements */
1945 DEFUN ("aref", Faref
, Saref
, 2, 2, 0,
1946 doc
: /* Return the element of ARRAY at index IDX.
1947 ARRAY may be a vector, a string, a char-table, a bool-vector,
1948 or a byte-code object. IDX starts at 0. */)
1950 register Lisp_Object array
;
1953 register int idxval
;
1956 idxval
= XINT (idx
);
1957 if (STRINGP (array
))
1961 if (idxval
< 0 || idxval
>= SCHARS (array
))
1962 args_out_of_range (array
, idx
);
1963 if (! STRING_MULTIBYTE (array
))
1964 return make_number ((unsigned char) SREF (array
, idxval
));
1965 idxval_byte
= string_char_to_byte (array
, idxval
);
1967 c
= STRING_CHAR (SDATA (array
) + idxval_byte
,
1968 SBYTES (array
) - idxval_byte
);
1969 return make_number (c
);
1971 else if (BOOL_VECTOR_P (array
))
1975 if (idxval
< 0 || idxval
>= XBOOL_VECTOR (array
)->size
)
1976 args_out_of_range (array
, idx
);
1978 val
= (unsigned char) XBOOL_VECTOR (array
)->data
[idxval
/ BOOL_VECTOR_BITS_PER_CHAR
];
1979 return (val
& (1 << (idxval
% BOOL_VECTOR_BITS_PER_CHAR
)) ? Qt
: Qnil
);
1981 else if (CHAR_TABLE_P (array
))
1983 CHECK_CHARACTER (idx
);
1984 return CHAR_TABLE_REF (array
, idxval
);
1989 if (VECTORP (array
))
1990 size
= XVECTOR (array
)->size
;
1991 else if (COMPILEDP (array
))
1992 size
= XVECTOR (array
)->size
& PSEUDOVECTOR_SIZE_MASK
;
1994 wrong_type_argument (Qarrayp
, array
);
1996 if (idxval
< 0 || idxval
>= size
)
1997 args_out_of_range (array
, idx
);
1998 return XVECTOR (array
)->contents
[idxval
];
2002 DEFUN ("aset", Faset
, Saset
, 3, 3, 0,
2003 doc
: /* Store into the element of ARRAY at index IDX the value NEWELT.
2004 Return NEWELT. ARRAY may be a vector, a string, a char-table or a
2005 bool-vector. IDX starts at 0. */)
2006 (array
, idx
, newelt
)
2007 register Lisp_Object array
;
2008 Lisp_Object idx
, newelt
;
2010 register int idxval
;
2013 idxval
= XINT (idx
);
2014 if (!VECTORP (array
) && !STRINGP (array
) && !BOOL_VECTOR_P (array
)
2015 && ! CHAR_TABLE_P (array
))
2016 array
= wrong_type_argument (Qarrayp
, array
);
2017 CHECK_IMPURE (array
);
2019 if (VECTORP (array
))
2021 if (idxval
< 0 || idxval
>= XVECTOR (array
)->size
)
2022 args_out_of_range (array
, idx
);
2023 XVECTOR (array
)->contents
[idxval
] = newelt
;
2025 else if (BOOL_VECTOR_P (array
))
2029 if (idxval
< 0 || idxval
>= XBOOL_VECTOR (array
)->size
)
2030 args_out_of_range (array
, idx
);
2032 val
= (unsigned char) XBOOL_VECTOR (array
)->data
[idxval
/ BOOL_VECTOR_BITS_PER_CHAR
];
2034 if (! NILP (newelt
))
2035 val
|= 1 << (idxval
% BOOL_VECTOR_BITS_PER_CHAR
);
2037 val
&= ~(1 << (idxval
% BOOL_VECTOR_BITS_PER_CHAR
));
2038 XBOOL_VECTOR (array
)->data
[idxval
/ BOOL_VECTOR_BITS_PER_CHAR
] = val
;
2040 else if (CHAR_TABLE_P (array
))
2042 CHECK_CHARACTER (idx
);
2043 CHAR_TABLE_SET (array
, idxval
, newelt
);
2045 else if (STRING_MULTIBYTE (array
))
2047 int idxval_byte
, prev_bytes
, new_bytes
, nbytes
;
2048 unsigned char workbuf
[MAX_MULTIBYTE_LENGTH
], *p0
= workbuf
, *p1
;
2050 if (idxval
< 0 || idxval
>= SCHARS (array
))
2051 args_out_of_range (array
, idx
);
2052 CHECK_CHARACTER (newelt
);
2054 nbytes
= SBYTES (array
);
2056 idxval_byte
= string_char_to_byte (array
, idxval
);
2057 p1
= SDATA (array
) + idxval_byte
;
2058 PARSE_MULTIBYTE_SEQ (p1
, nbytes
- idxval_byte
, prev_bytes
);
2059 new_bytes
= CHAR_STRING (XINT (newelt
), p0
);
2060 if (prev_bytes
!= new_bytes
)
2062 /* We must relocate the string data. */
2063 int nchars
= SCHARS (array
);
2067 SAFE_ALLOCA (str
, unsigned char *, nbytes
);
2068 bcopy (SDATA (array
), str
, nbytes
);
2069 allocate_string_data (XSTRING (array
), nchars
,
2070 nbytes
+ new_bytes
- prev_bytes
);
2071 bcopy (str
, SDATA (array
), idxval_byte
);
2072 p1
= SDATA (array
) + idxval_byte
;
2073 bcopy (str
+ idxval_byte
+ prev_bytes
, p1
+ new_bytes
,
2074 nbytes
- (idxval_byte
+ prev_bytes
));
2076 clear_string_char_byte_cache ();
2083 if (idxval
< 0 || idxval
>= SCHARS (array
))
2084 args_out_of_range (array
, idx
);
2085 CHECK_NUMBER (newelt
);
2087 if (XINT (newelt
) < 0 || ASCII_CHAR_P (XINT (newelt
))
2088 || CHAR_BYTE8_P (XINT (newelt
)))
2089 SSET (array
, idxval
, XINT (newelt
));
2092 /* We must relocate the string data while converting it to
2094 int idxval_byte
, prev_bytes
, new_bytes
;
2095 unsigned char workbuf
[MAX_MULTIBYTE_LENGTH
], *p0
= workbuf
, *p1
;
2096 unsigned char *origstr
= SDATA (array
), *str
;
2100 nchars
= SCHARS (array
);
2101 nbytes
= idxval_byte
= count_size_as_multibyte (origstr
, idxval
);
2102 nbytes
+= count_size_as_multibyte (origstr
+ idxval
,
2104 SAFE_ALLOCA (str
, unsigned char *, nbytes
);
2105 copy_text (SDATA (array
), str
, nchars
, 0, 1);
2106 PARSE_MULTIBYTE_SEQ (str
+ idxval_byte
, nbytes
- idxval_byte
,
2108 new_bytes
= CHAR_STRING (XINT (newelt
), p0
);
2109 allocate_string_data (XSTRING (array
), nchars
,
2110 nbytes
+ new_bytes
- prev_bytes
);
2111 bcopy (str
, SDATA (array
), idxval_byte
);
2112 p1
= SDATA (array
) + idxval_byte
;
2115 bcopy (str
+ idxval_byte
+ prev_bytes
, p1
,
2116 nbytes
- (idxval_byte
+ prev_bytes
));
2118 clear_string_char_byte_cache ();
2125 /* Arithmetic functions */
2127 enum comparison
{ equal
, notequal
, less
, grtr
, less_or_equal
, grtr_or_equal
};
2130 arithcompare (num1
, num2
, comparison
)
2131 Lisp_Object num1
, num2
;
2132 enum comparison comparison
;
2134 double f1
= 0, f2
= 0;
2137 CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (num1
);
2138 CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (num2
);
2140 if (FLOATP (num1
) || FLOATP (num2
))
2143 f1
= (FLOATP (num1
)) ? XFLOAT_DATA (num1
) : XINT (num1
);
2144 f2
= (FLOATP (num2
)) ? XFLOAT_DATA (num2
) : XINT (num2
);
2150 if (floatp
? f1
== f2
: XINT (num1
) == XINT (num2
))
2155 if (floatp
? f1
!= f2
: XINT (num1
) != XINT (num2
))
2160 if (floatp
? f1
< f2
: XINT (num1
) < XINT (num2
))
2165 if (floatp
? f1
<= f2
: XINT (num1
) <= XINT (num2
))
2170 if (floatp
? f1
> f2
: XINT (num1
) > XINT (num2
))
2175 if (floatp
? f1
>= f2
: XINT (num1
) >= XINT (num2
))
2184 DEFUN ("=", Feqlsign
, Seqlsign
, 2, 2, 0,
2185 doc
: /* Return t if two args, both numbers or markers, are equal. */)
2187 register Lisp_Object num1
, num2
;
2189 return arithcompare (num1
, num2
, equal
);
2192 DEFUN ("<", Flss
, Slss
, 2, 2, 0,
2193 doc
: /* Return t if first arg is less than second arg. Both must be numbers or markers. */)
2195 register Lisp_Object num1
, num2
;
2197 return arithcompare (num1
, num2
, less
);
2200 DEFUN (">", Fgtr
, Sgtr
, 2, 2, 0,
2201 doc
: /* Return t if first arg is greater than second arg. Both must be numbers or markers. */)
2203 register Lisp_Object num1
, num2
;
2205 return arithcompare (num1
, num2
, grtr
);
2208 DEFUN ("<=", Fleq
, Sleq
, 2, 2, 0,
2209 doc
: /* Return t if first arg is less than or equal to second arg.
2210 Both must be numbers or markers. */)
2212 register Lisp_Object num1
, num2
;
2214 return arithcompare (num1
, num2
, less_or_equal
);
2217 DEFUN (">=", Fgeq
, Sgeq
, 2, 2, 0,
2218 doc
: /* Return t if first arg is greater than or equal to second arg.
2219 Both must be numbers or markers. */)
2221 register Lisp_Object num1
, num2
;
2223 return arithcompare (num1
, num2
, grtr_or_equal
);
2226 DEFUN ("/=", Fneq
, Sneq
, 2, 2, 0,
2227 doc
: /* Return t if first arg is not equal to second arg. Both must be numbers or markers. */)
2229 register Lisp_Object num1
, num2
;
2231 return arithcompare (num1
, num2
, notequal
);
2234 DEFUN ("zerop", Fzerop
, Szerop
, 1, 1, 0,
2235 doc
: /* Return t if NUMBER is zero. */)
2237 register Lisp_Object number
;
2239 CHECK_NUMBER_OR_FLOAT (number
);
2241 if (FLOATP (number
))
2243 if (XFLOAT_DATA (number
) == 0.0)
2253 /* Convert between long values and pairs of Lisp integers. */
2259 unsigned long top
= i
>> 16;
2260 unsigned int bot
= i
& 0xFFFF;
2262 return make_number (bot
);
2263 if (top
== (unsigned long)-1 >> 16)
2264 return Fcons (make_number (-1), make_number (bot
));
2265 return Fcons (make_number (top
), make_number (bot
));
2272 Lisp_Object top
, bot
;
2279 return ((XINT (top
) << 16) | XINT (bot
));
2282 DEFUN ("number-to-string", Fnumber_to_string
, Snumber_to_string
, 1, 1, 0,
2283 doc
: /* Return the decimal representation of NUMBER as a string.
2284 Uses a minus sign if negative.
2285 NUMBER may be an integer or a floating point number. */)
2289 char buffer
[VALBITS
];
2291 CHECK_NUMBER_OR_FLOAT (number
);
2293 if (FLOATP (number
))
2295 char pigbuf
[350]; /* see comments in float_to_string */
2297 float_to_string (pigbuf
, XFLOAT_DATA (number
));
2298 return build_string (pigbuf
);
2301 if (sizeof (int) == sizeof (EMACS_INT
))
2302 sprintf (buffer
, "%d", XINT (number
));
2303 else if (sizeof (long) == sizeof (EMACS_INT
))
2304 sprintf (buffer
, "%ld", (long) XINT (number
));
2307 return build_string (buffer
);
2311 digit_to_number (character
, base
)
2312 int character
, base
;
2316 if (character
>= '0' && character
<= '9')
2317 digit
= character
- '0';
2318 else if (character
>= 'a' && character
<= 'z')
2319 digit
= character
- 'a' + 10;
2320 else if (character
>= 'A' && character
<= 'Z')
2321 digit
= character
- 'A' + 10;
2331 DEFUN ("string-to-number", Fstring_to_number
, Sstring_to_number
, 1, 2, 0,
2332 doc
: /* Parse STRING as a decimal number and return the number.
2333 This parses both integers and floating point numbers.
2334 It ignores leading spaces and tabs.
2336 If BASE, interpret STRING as a number in that base. If BASE isn't
2337 present, base 10 is used. BASE must be between 2 and 16 (inclusive).
2338 If the base used is not 10, floating point is not recognized. */)
2340 register Lisp_Object string
, base
;
2342 register unsigned char *p
;
2347 CHECK_STRING (string
);
2353 CHECK_NUMBER (base
);
2355 if (b
< 2 || b
> 16)
2356 Fsignal (Qargs_out_of_range
, Fcons (base
, Qnil
));
2359 /* Skip any whitespace at the front of the number. Some versions of
2360 atoi do this anyway, so we might as well make Emacs lisp consistent. */
2362 while (*p
== ' ' || *p
== '\t')
2373 if (isfloat_string (p
) && b
== 10)
2374 val
= make_float (sign
* atof (p
));
2381 int digit
= digit_to_number (*p
++, b
);
2387 val
= make_fixnum_or_float (sign
* v
);
2407 static Lisp_Object float_arith_driver
P_ ((double, int, enum arithop
,
2408 int, Lisp_Object
*));
2409 extern Lisp_Object
fmod_float ();
2412 arith_driver (code
, nargs
, args
)
2415 register Lisp_Object
*args
;
2417 register Lisp_Object val
;
2418 register int argnum
;
2419 register EMACS_INT accum
= 0;
2420 register EMACS_INT next
;
2422 switch (SWITCH_ENUM_CAST (code
))
2440 for (argnum
= 0; argnum
< nargs
; argnum
++)
2442 /* Using args[argnum] as argument to CHECK_NUMBER_... */
2444 CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (val
);
2447 return float_arith_driver ((double) accum
, argnum
, code
,
2450 next
= XINT (args
[argnum
]);
2451 switch (SWITCH_ENUM_CAST (code
))
2457 accum
= argnum
? accum
- next
: nargs
== 1 ? - next
: next
;
2468 Fsignal (Qarith_error
, Qnil
);
2482 if (!argnum
|| next
> accum
)
2486 if (!argnum
|| next
< accum
)
2492 XSETINT (val
, accum
);
2497 #define isnan(x) ((x) != (x))
2500 float_arith_driver (accum
, argnum
, code
, nargs
, args
)
2502 register int argnum
;
2505 register Lisp_Object
*args
;
2507 register Lisp_Object val
;
2510 for (; argnum
< nargs
; argnum
++)
2512 val
= args
[argnum
]; /* using args[argnum] as argument to CHECK_NUMBER_... */
2513 CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (val
);
2517 next
= XFLOAT_DATA (val
);
2521 args
[argnum
] = val
; /* runs into a compiler bug. */
2522 next
= XINT (args
[argnum
]);
2524 switch (SWITCH_ENUM_CAST (code
))
2530 accum
= argnum
? accum
- next
: nargs
== 1 ? - next
: next
;
2540 if (! IEEE_FLOATING_POINT
&& next
== 0)
2541 Fsignal (Qarith_error
, Qnil
);
2548 return wrong_type_argument (Qinteger_or_marker_p
, val
);
2550 if (!argnum
|| isnan (next
) || next
> accum
)
2554 if (!argnum
|| isnan (next
) || next
< accum
)
2560 return make_float (accum
);
2564 DEFUN ("+", Fplus
, Splus
, 0, MANY
, 0,
2565 doc
: /* Return sum of any number of arguments, which are numbers or markers.
2566 usage: (+ &rest NUMBERS-OR-MARKERS) */)
2571 return arith_driver (Aadd
, nargs
, args
);
2574 DEFUN ("-", Fminus
, Sminus
, 0, MANY
, 0,
2575 doc
: /* Negate number or subtract numbers or markers and return the result.
2576 With one arg, negates it. With more than one arg,
2577 subtracts all but the first from the first.
2578 usage: (- &optional NUMBER-OR-MARKER &rest MORE-NUMBERS-OR-MARKERS) */)
2583 return arith_driver (Asub
, nargs
, args
);
2586 DEFUN ("*", Ftimes
, Stimes
, 0, MANY
, 0,
2587 doc
: /* Return product of any number of arguments, which are numbers or markers.
2588 usage: (* &rest NUMBERS-OR-MARKERS) */)
2593 return arith_driver (Amult
, nargs
, args
);
2596 DEFUN ("/", Fquo
, Squo
, 2, MANY
, 0,
2597 doc
: /* Return first argument divided by all the remaining arguments.
2598 The arguments must be numbers or markers.
2599 usage: (/ DIVIDEND DIVISOR &rest DIVISORS) */)
2605 for (argnum
= 2; argnum
< nargs
; argnum
++)
2606 if (FLOATP (args
[argnum
]))
2607 return float_arith_driver (0, 0, Adiv
, nargs
, args
);
2608 return arith_driver (Adiv
, nargs
, args
);
2611 DEFUN ("%", Frem
, Srem
, 2, 2, 0,
2612 doc
: /* Return remainder of X divided by Y.
2613 Both must be integers or markers. */)
2615 register Lisp_Object x
, y
;
2619 CHECK_NUMBER_COERCE_MARKER (x
);
2620 CHECK_NUMBER_COERCE_MARKER (y
);
2622 if (XFASTINT (y
) == 0)
2623 Fsignal (Qarith_error
, Qnil
);
2625 XSETINT (val
, XINT (x
) % XINT (y
));
2639 /* If the magnitude of the result exceeds that of the divisor, or
2640 the sign of the result does not agree with that of the dividend,
2641 iterate with the reduced value. This does not yield a
2642 particularly accurate result, but at least it will be in the
2643 range promised by fmod. */
2645 r
-= f2
* floor (r
/ f2
);
2646 while (f2
<= (r
< 0 ? -r
: r
) || ((r
< 0) != (f1
< 0) && ! isnan (r
)));
2650 #endif /* ! HAVE_FMOD */
2652 DEFUN ("mod", Fmod
, Smod
, 2, 2, 0,
2653 doc
: /* Return X modulo Y.
2654 The result falls between zero (inclusive) and Y (exclusive).
2655 Both X and Y must be numbers or markers. */)
2657 register Lisp_Object x
, y
;
2662 CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (x
);
2663 CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (y
);
2665 if (FLOATP (x
) || FLOATP (y
))
2666 return fmod_float (x
, y
);
2672 Fsignal (Qarith_error
, Qnil
);
2676 /* If the "remainder" comes out with the wrong sign, fix it. */
2677 if (i2
< 0 ? i1
> 0 : i1
< 0)
2684 DEFUN ("max", Fmax
, Smax
, 1, MANY
, 0,
2685 doc
: /* Return largest of all the arguments (which must be numbers or markers).
2686 The value is always a number; markers are converted to numbers.
2687 usage: (max NUMBER-OR-MARKER &rest NUMBERS-OR-MARKERS) */)
2692 return arith_driver (Amax
, nargs
, args
);
2695 DEFUN ("min", Fmin
, Smin
, 1, MANY
, 0,
2696 doc
: /* Return smallest of all the arguments (which must be numbers or markers).
2697 The value is always a number; markers are converted to numbers.
2698 usage: (min NUMBER-OR-MARKER &rest NUMBERS-OR-MARKERS) */)
2703 return arith_driver (Amin
, nargs
, args
);
2706 DEFUN ("logand", Flogand
, Slogand
, 0, MANY
, 0,
2707 doc
: /* Return bitwise-and of all the arguments.
2708 Arguments may be integers, or markers converted to integers.
2709 usage: (logand &rest INTS-OR-MARKERS) */)
2714 return arith_driver (Alogand
, nargs
, args
);
2717 DEFUN ("logior", Flogior
, Slogior
, 0, MANY
, 0,
2718 doc
: /* Return bitwise-or of all the arguments.
2719 Arguments may be integers, or markers converted to integers.
2720 usage: (logior &rest INTS-OR-MARKERS) */)
2725 return arith_driver (Alogior
, nargs
, args
);
2728 DEFUN ("logxor", Flogxor
, Slogxor
, 0, MANY
, 0,
2729 doc
: /* Return bitwise-exclusive-or of all the arguments.
2730 Arguments may be integers, or markers converted to integers.
2731 usage: (logxor &rest INTS-OR-MARKERS) */)
2736 return arith_driver (Alogxor
, nargs
, args
);
2739 DEFUN ("ash", Fash
, Sash
, 2, 2, 0,
2740 doc
: /* Return VALUE with its bits shifted left by COUNT.
2741 If COUNT is negative, shifting is actually to the right.
2742 In this case, the sign bit is duplicated. */)
2744 register Lisp_Object value
, count
;
2746 register Lisp_Object val
;
2748 CHECK_NUMBER (value
);
2749 CHECK_NUMBER (count
);
2751 if (XINT (count
) >= BITS_PER_EMACS_INT
)
2753 else if (XINT (count
) > 0)
2754 XSETINT (val
, XINT (value
) << XFASTINT (count
));
2755 else if (XINT (count
) <= -BITS_PER_EMACS_INT
)
2756 XSETINT (val
, XINT (value
) < 0 ? -1 : 0);
2758 XSETINT (val
, XINT (value
) >> -XINT (count
));
2762 DEFUN ("lsh", Flsh
, Slsh
, 2, 2, 0,
2763 doc
: /* Return VALUE with its bits shifted left by COUNT.
2764 If COUNT is negative, shifting is actually to the right.
2765 In this case, zeros are shifted in on the left. */)
2767 register Lisp_Object value
, count
;
2769 register Lisp_Object val
;
2771 CHECK_NUMBER (value
);
2772 CHECK_NUMBER (count
);
2774 if (XINT (count
) >= BITS_PER_EMACS_INT
)
2776 else if (XINT (count
) > 0)
2777 XSETINT (val
, (EMACS_UINT
) XUINT (value
) << XFASTINT (count
));
2778 else if (XINT (count
) <= -BITS_PER_EMACS_INT
)
2781 XSETINT (val
, (EMACS_UINT
) XUINT (value
) >> -XINT (count
));
2785 DEFUN ("1+", Fadd1
, Sadd1
, 1, 1, 0,
2786 doc
: /* Return NUMBER plus one. NUMBER may be a number or a marker.
2787 Markers are converted to integers. */)
2789 register Lisp_Object number
;
2791 CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (number
);
2793 if (FLOATP (number
))
2794 return (make_float (1.0 + XFLOAT_DATA (number
)));
2796 XSETINT (number
, XINT (number
) + 1);
2800 DEFUN ("1-", Fsub1
, Ssub1
, 1, 1, 0,
2801 doc
: /* Return NUMBER minus one. NUMBER may be a number or a marker.
2802 Markers are converted to integers. */)
2804 register Lisp_Object number
;
2806 CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (number
);
2808 if (FLOATP (number
))
2809 return (make_float (-1.0 + XFLOAT_DATA (number
)));
2811 XSETINT (number
, XINT (number
) - 1);
2815 DEFUN ("lognot", Flognot
, Slognot
, 1, 1, 0,
2816 doc
: /* Return the bitwise complement of NUMBER. NUMBER must be an integer. */)
2818 register Lisp_Object number
;
2820 CHECK_NUMBER (number
);
2821 XSETINT (number
, ~XINT (number
));
2825 DEFUN ("byteorder", Fbyteorder
, Sbyteorder
, 0, 0, 0,
2826 doc
: /* Return the byteorder for the machine.
2827 Returns 66 (ASCII uppercase B) for big endian machines or 108 (ASCII
2828 lowercase l) for small endian machines. */)
2831 unsigned i
= 0x04030201;
2832 int order
= *(char *)&i
== 1 ? 108 : 66;
2834 return make_number (order
);
2842 Lisp_Object error_tail
, arith_tail
;
2844 Qquote
= intern ("quote");
2845 Qlambda
= intern ("lambda");
2846 Qsubr
= intern ("subr");
2847 Qerror_conditions
= intern ("error-conditions");
2848 Qerror_message
= intern ("error-message");
2849 Qtop_level
= intern ("top-level");
2851 Qerror
= intern ("error");
2852 Qquit
= intern ("quit");
2853 Qwrong_type_argument
= intern ("wrong-type-argument");
2854 Qargs_out_of_range
= intern ("args-out-of-range");
2855 Qvoid_function
= intern ("void-function");
2856 Qcyclic_function_indirection
= intern ("cyclic-function-indirection");
2857 Qcyclic_variable_indirection
= intern ("cyclic-variable-indirection");
2858 Qvoid_variable
= intern ("void-variable");
2859 Qsetting_constant
= intern ("setting-constant");
2860 Qinvalid_read_syntax
= intern ("invalid-read-syntax");
2862 Qinvalid_function
= intern ("invalid-function");
2863 Qwrong_number_of_arguments
= intern ("wrong-number-of-arguments");
2864 Qno_catch
= intern ("no-catch");
2865 Qend_of_file
= intern ("end-of-file");
2866 Qarith_error
= intern ("arith-error");
2867 Qbeginning_of_buffer
= intern ("beginning-of-buffer");
2868 Qend_of_buffer
= intern ("end-of-buffer");
2869 Qbuffer_read_only
= intern ("buffer-read-only");
2870 Qtext_read_only
= intern ("text-read-only");
2871 Qmark_inactive
= intern ("mark-inactive");
2873 Qlistp
= intern ("listp");
2874 Qconsp
= intern ("consp");
2875 Qsymbolp
= intern ("symbolp");
2876 Qkeywordp
= intern ("keywordp");
2877 Qintegerp
= intern ("integerp");
2878 Qnatnump
= intern ("natnump");
2879 Qwholenump
= intern ("wholenump");
2880 Qstringp
= intern ("stringp");
2881 Qarrayp
= intern ("arrayp");
2882 Qsequencep
= intern ("sequencep");
2883 Qbufferp
= intern ("bufferp");
2884 Qvectorp
= intern ("vectorp");
2885 Qchar_or_string_p
= intern ("char-or-string-p");
2886 Qmarkerp
= intern ("markerp");
2887 Qbuffer_or_string_p
= intern ("buffer-or-string-p");
2888 Qinteger_or_marker_p
= intern ("integer-or-marker-p");
2889 Qboundp
= intern ("boundp");
2890 Qfboundp
= intern ("fboundp");
2892 Qfloatp
= intern ("floatp");
2893 Qnumberp
= intern ("numberp");
2894 Qnumber_or_marker_p
= intern ("number-or-marker-p");
2896 Qchar_table_p
= intern ("char-table-p");
2897 Qvector_or_char_table_p
= intern ("vector-or-char-table-p");
2899 Qsubrp
= intern ("subrp");
2900 Qunevalled
= intern ("unevalled");
2901 Qmany
= intern ("many");
2903 Qcdr
= intern ("cdr");
2905 /* Handle automatic advice activation */
2906 Qad_advice_info
= intern ("ad-advice-info");
2907 Qad_activate_internal
= intern ("ad-activate-internal");
2909 error_tail
= Fcons (Qerror
, Qnil
);
2911 /* ERROR is used as a signaler for random errors for which nothing else is right */
2913 Fput (Qerror
, Qerror_conditions
,
2915 Fput (Qerror
, Qerror_message
,
2916 build_string ("error"));
2918 Fput (Qquit
, Qerror_conditions
,
2919 Fcons (Qquit
, Qnil
));
2920 Fput (Qquit
, Qerror_message
,
2921 build_string ("Quit"));
2923 Fput (Qwrong_type_argument
, Qerror_conditions
,
2924 Fcons (Qwrong_type_argument
, error_tail
));
2925 Fput (Qwrong_type_argument
, Qerror_message
,
2926 build_string ("Wrong type argument"));
2928 Fput (Qargs_out_of_range
, Qerror_conditions
,
2929 Fcons (Qargs_out_of_range
, error_tail
));
2930 Fput (Qargs_out_of_range
, Qerror_message
,
2931 build_string ("Args out of range"));
2933 Fput (Qvoid_function
, Qerror_conditions
,
2934 Fcons (Qvoid_function
, error_tail
));
2935 Fput (Qvoid_function
, Qerror_message
,
2936 build_string ("Symbol's function definition is void"));
2938 Fput (Qcyclic_function_indirection
, Qerror_conditions
,
2939 Fcons (Qcyclic_function_indirection
, error_tail
));
2940 Fput (Qcyclic_function_indirection
, Qerror_message
,
2941 build_string ("Symbol's chain of function indirections contains a loop"));
2943 Fput (Qcyclic_variable_indirection
, Qerror_conditions
,
2944 Fcons (Qcyclic_variable_indirection
, error_tail
));
2945 Fput (Qcyclic_variable_indirection
, Qerror_message
,
2946 build_string ("Symbol's chain of variable indirections contains a loop"));
2948 Qcircular_list
= intern ("circular-list");
2949 staticpro (&Qcircular_list
);
2950 Fput (Qcircular_list
, Qerror_conditions
,
2951 Fcons (Qcircular_list
, error_tail
));
2952 Fput (Qcircular_list
, Qerror_message
,
2953 build_string ("List contains a loop"));
2955 Fput (Qvoid_variable
, Qerror_conditions
,
2956 Fcons (Qvoid_variable
, error_tail
));
2957 Fput (Qvoid_variable
, Qerror_message
,
2958 build_string ("Symbol's value as variable is void"));
2960 Fput (Qsetting_constant
, Qerror_conditions
,
2961 Fcons (Qsetting_constant
, error_tail
));
2962 Fput (Qsetting_constant
, Qerror_message
,
2963 build_string ("Attempt to set a constant symbol"));
2965 Fput (Qinvalid_read_syntax
, Qerror_conditions
,
2966 Fcons (Qinvalid_read_syntax
, error_tail
));
2967 Fput (Qinvalid_read_syntax
, Qerror_message
,
2968 build_string ("Invalid read syntax"));
2970 Fput (Qinvalid_function
, Qerror_conditions
,
2971 Fcons (Qinvalid_function
, error_tail
));
2972 Fput (Qinvalid_function
, Qerror_message
,
2973 build_string ("Invalid function"));
2975 Fput (Qwrong_number_of_arguments
, Qerror_conditions
,
2976 Fcons (Qwrong_number_of_arguments
, error_tail
));
2977 Fput (Qwrong_number_of_arguments
, Qerror_message
,
2978 build_string ("Wrong number of arguments"));
2980 Fput (Qno_catch
, Qerror_conditions
,
2981 Fcons (Qno_catch
, error_tail
));
2982 Fput (Qno_catch
, Qerror_message
,
2983 build_string ("No catch for tag"));
2985 Fput (Qend_of_file
, Qerror_conditions
,
2986 Fcons (Qend_of_file
, error_tail
));
2987 Fput (Qend_of_file
, Qerror_message
,
2988 build_string ("End of file during parsing"));
2990 arith_tail
= Fcons (Qarith_error
, error_tail
);
2991 Fput (Qarith_error
, Qerror_conditions
,
2993 Fput (Qarith_error
, Qerror_message
,
2994 build_string ("Arithmetic error"));
2996 Fput (Qbeginning_of_buffer
, Qerror_conditions
,
2997 Fcons (Qbeginning_of_buffer
, error_tail
));
2998 Fput (Qbeginning_of_buffer
, Qerror_message
,
2999 build_string ("Beginning of buffer"));
3001 Fput (Qend_of_buffer
, Qerror_conditions
,
3002 Fcons (Qend_of_buffer
, error_tail
));
3003 Fput (Qend_of_buffer
, Qerror_message
,
3004 build_string ("End of buffer"));
3006 Fput (Qbuffer_read_only
, Qerror_conditions
,
3007 Fcons (Qbuffer_read_only
, error_tail
));
3008 Fput (Qbuffer_read_only
, Qerror_message
,
3009 build_string ("Buffer is read-only"));
3011 Fput (Qtext_read_only
, Qerror_conditions
,
3012 Fcons (Qtext_read_only
, error_tail
));
3013 Fput (Qtext_read_only
, Qerror_message
,
3014 build_string ("Text is read-only"));
3016 Qrange_error
= intern ("range-error");
3017 Qdomain_error
= intern ("domain-error");
3018 Qsingularity_error
= intern ("singularity-error");
3019 Qoverflow_error
= intern ("overflow-error");
3020 Qunderflow_error
= intern ("underflow-error");
3022 Fput (Qdomain_error
, Qerror_conditions
,
3023 Fcons (Qdomain_error
, arith_tail
));
3024 Fput (Qdomain_error
, Qerror_message
,
3025 build_string ("Arithmetic domain error"));
3027 Fput (Qrange_error
, Qerror_conditions
,
3028 Fcons (Qrange_error
, arith_tail
));
3029 Fput (Qrange_error
, Qerror_message
,
3030 build_string ("Arithmetic range error"));
3032 Fput (Qsingularity_error
, Qerror_conditions
,
3033 Fcons (Qsingularity_error
, Fcons (Qdomain_error
, arith_tail
)));
3034 Fput (Qsingularity_error
, Qerror_message
,
3035 build_string ("Arithmetic singularity error"));
3037 Fput (Qoverflow_error
, Qerror_conditions
,
3038 Fcons (Qoverflow_error
, Fcons (Qdomain_error
, arith_tail
)));
3039 Fput (Qoverflow_error
, Qerror_message
,
3040 build_string ("Arithmetic overflow error"));
3042 Fput (Qunderflow_error
, Qerror_conditions
,
3043 Fcons (Qunderflow_error
, Fcons (Qdomain_error
, arith_tail
)));
3044 Fput (Qunderflow_error
, Qerror_message
,
3045 build_string ("Arithmetic underflow error"));
3047 staticpro (&Qrange_error
);
3048 staticpro (&Qdomain_error
);
3049 staticpro (&Qsingularity_error
);
3050 staticpro (&Qoverflow_error
);
3051 staticpro (&Qunderflow_error
);
3055 staticpro (&Qquote
);
3056 staticpro (&Qlambda
);
3058 staticpro (&Qunbound
);
3059 staticpro (&Qerror_conditions
);
3060 staticpro (&Qerror_message
);
3061 staticpro (&Qtop_level
);
3063 staticpro (&Qerror
);
3065 staticpro (&Qwrong_type_argument
);
3066 staticpro (&Qargs_out_of_range
);
3067 staticpro (&Qvoid_function
);
3068 staticpro (&Qcyclic_function_indirection
);
3069 staticpro (&Qcyclic_variable_indirection
);
3070 staticpro (&Qvoid_variable
);
3071 staticpro (&Qsetting_constant
);
3072 staticpro (&Qinvalid_read_syntax
);
3073 staticpro (&Qwrong_number_of_arguments
);
3074 staticpro (&Qinvalid_function
);
3075 staticpro (&Qno_catch
);
3076 staticpro (&Qend_of_file
);
3077 staticpro (&Qarith_error
);
3078 staticpro (&Qbeginning_of_buffer
);
3079 staticpro (&Qend_of_buffer
);
3080 staticpro (&Qbuffer_read_only
);
3081 staticpro (&Qtext_read_only
);
3082 staticpro (&Qmark_inactive
);
3084 staticpro (&Qlistp
);
3085 staticpro (&Qconsp
);
3086 staticpro (&Qsymbolp
);
3087 staticpro (&Qkeywordp
);
3088 staticpro (&Qintegerp
);
3089 staticpro (&Qnatnump
);
3090 staticpro (&Qwholenump
);
3091 staticpro (&Qstringp
);
3092 staticpro (&Qarrayp
);
3093 staticpro (&Qsequencep
);
3094 staticpro (&Qbufferp
);
3095 staticpro (&Qvectorp
);
3096 staticpro (&Qchar_or_string_p
);
3097 staticpro (&Qmarkerp
);
3098 staticpro (&Qbuffer_or_string_p
);
3099 staticpro (&Qinteger_or_marker_p
);
3100 staticpro (&Qfloatp
);
3101 staticpro (&Qnumberp
);
3102 staticpro (&Qnumber_or_marker_p
);
3103 staticpro (&Qchar_table_p
);
3104 staticpro (&Qvector_or_char_table_p
);
3105 staticpro (&Qsubrp
);
3107 staticpro (&Qunevalled
);
3109 staticpro (&Qboundp
);
3110 staticpro (&Qfboundp
);
3112 staticpro (&Qad_advice_info
);
3113 staticpro (&Qad_activate_internal
);
3115 /* Types that type-of returns. */
3116 Qinteger
= intern ("integer");
3117 Qsymbol
= intern ("symbol");
3118 Qstring
= intern ("string");
3119 Qcons
= intern ("cons");
3120 Qmarker
= intern ("marker");
3121 Qoverlay
= intern ("overlay");
3122 Qfloat
= intern ("float");
3123 Qwindow_configuration
= intern ("window-configuration");
3124 Qprocess
= intern ("process");
3125 Qwindow
= intern ("window");
3126 /* Qsubr = intern ("subr"); */
3127 Qcompiled_function
= intern ("compiled-function");
3128 Qbuffer
= intern ("buffer");
3129 Qframe
= intern ("frame");
3130 Qvector
= intern ("vector");
3131 Qchar_table
= intern ("char-table");
3132 Qbool_vector
= intern ("bool-vector");
3133 Qhash_table
= intern ("hash-table");
3135 staticpro (&Qinteger
);
3136 staticpro (&Qsymbol
);
3137 staticpro (&Qstring
);
3139 staticpro (&Qmarker
);
3140 staticpro (&Qoverlay
);
3141 staticpro (&Qfloat
);
3142 staticpro (&Qwindow_configuration
);
3143 staticpro (&Qprocess
);
3144 staticpro (&Qwindow
);
3145 /* staticpro (&Qsubr); */
3146 staticpro (&Qcompiled_function
);
3147 staticpro (&Qbuffer
);
3148 staticpro (&Qframe
);
3149 staticpro (&Qvector
);
3150 staticpro (&Qchar_table
);
3151 staticpro (&Qbool_vector
);
3152 staticpro (&Qhash_table
);
3154 defsubr (&Sindirect_variable
);
3155 defsubr (&Sinteractive_form
);
3158 defsubr (&Stype_of
);
3163 defsubr (&Sintegerp
);
3164 defsubr (&Sinteger_or_marker_p
);
3165 defsubr (&Snumberp
);
3166 defsubr (&Snumber_or_marker_p
);
3168 defsubr (&Snatnump
);
3169 defsubr (&Ssymbolp
);
3170 defsubr (&Skeywordp
);
3171 defsubr (&Sstringp
);
3172 defsubr (&Smultibyte_string_p
);
3173 defsubr (&Svectorp
);
3174 defsubr (&Schar_table_p
);
3175 defsubr (&Svector_or_char_table_p
);
3176 defsubr (&Sbool_vector_p
);
3178 defsubr (&Ssequencep
);
3179 defsubr (&Sbufferp
);
3180 defsubr (&Smarkerp
);
3182 defsubr (&Sbyte_code_function_p
);
3183 defsubr (&Schar_or_string_p
);
3186 defsubr (&Scar_safe
);
3187 defsubr (&Scdr_safe
);
3190 defsubr (&Ssymbol_function
);
3191 defsubr (&Sindirect_function
);
3192 defsubr (&Ssymbol_plist
);
3193 defsubr (&Ssymbol_name
);
3194 defsubr (&Smakunbound
);
3195 defsubr (&Sfmakunbound
);
3197 defsubr (&Sfboundp
);
3199 defsubr (&Sdefalias
);
3200 defsubr (&Ssetplist
);
3201 defsubr (&Ssymbol_value
);
3203 defsubr (&Sdefault_boundp
);
3204 defsubr (&Sdefault_value
);
3205 defsubr (&Sset_default
);
3206 defsubr (&Ssetq_default
);
3207 defsubr (&Smake_variable_buffer_local
);
3208 defsubr (&Smake_local_variable
);
3209 defsubr (&Skill_local_variable
);
3210 defsubr (&Smake_variable_frame_local
);
3211 defsubr (&Slocal_variable_p
);
3212 defsubr (&Slocal_variable_if_set_p
);
3213 defsubr (&Svariable_binding_locus
);
3216 defsubr (&Snumber_to_string
);
3217 defsubr (&Sstring_to_number
);
3218 defsubr (&Seqlsign
);
3241 defsubr (&Sbyteorder
);
3242 defsubr (&Ssubr_arity
);
3243 defsubr (&Ssubr_name
);
3245 XSYMBOL (Qwholenump
)->function
= XSYMBOL (Qnatnump
)->function
;
3247 DEFVAR_LISP ("most-positive-fixnum", &Vmost_positive_fixnum
,
3248 doc
: /* The largest value that is representable in a Lisp integer. */);
3249 Vmost_positive_fixnum
= make_number (MOST_POSITIVE_FIXNUM
);
3251 DEFVAR_LISP ("most-negative-fixnum", &Vmost_negative_fixnum
,
3252 doc
: /* The smallest value that is representable in a Lisp integer. */);
3253 Vmost_negative_fixnum
= make_number (MOST_NEGATIVE_FIXNUM
);
3260 #if defined(USG) && !defined(POSIX_SIGNALS)
3261 /* USG systems forget handlers when they are used;
3262 must reestablish each time */
3263 signal (signo
, arith_error
);
3266 /* VMS systems are like USG. */
3267 signal (signo
, arith_error
);
3271 #else /* not BSD4_1 */
3272 sigsetmask (SIGEMPTYMASK
);
3273 #endif /* not BSD4_1 */
3275 SIGNAL_THREAD_CHECK (signo
);
3276 Fsignal (Qarith_error
, Qnil
);
3282 /* Don't do this if just dumping out.
3283 We don't want to call `signal' in this case
3284 so that we don't have trouble with dumping
3285 signal-delivering routines in an inconsistent state. */
3289 #endif /* CANNOT_DUMP */
3290 signal (SIGFPE
, arith_error
);
3293 signal (SIGEMT
, arith_error
);
3297 /* arch-tag: 25879798-b84d-479a-9c89-7d148e2109f7
3298 (do not change this comment) */