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 If CMD is not a command, the return value is nil.
780 Value, if non-nil, is a list \(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 DEFUN ("aset", Faset
, Saset
, 3, 3, 0,
1987 doc
: /* Store into the element of ARRAY at index IDX the value NEWELT.
1988 Return NEWELT. ARRAY may be a vector, a string, a char-table or a
1989 bool-vector. IDX starts at 0. */)
1990 (array
, idx
, newelt
)
1991 register Lisp_Object array
;
1992 Lisp_Object idx
, newelt
;
1994 register int idxval
;
1997 idxval
= XINT (idx
);
1998 if (!VECTORP (array
) && !STRINGP (array
) && !BOOL_VECTOR_P (array
)
1999 && ! CHAR_TABLE_P (array
))
2000 array
= wrong_type_argument (Qarrayp
, array
);
2001 CHECK_IMPURE (array
);
2003 if (VECTORP (array
))
2005 if (idxval
< 0 || idxval
>= XVECTOR (array
)->size
)
2006 args_out_of_range (array
, idx
);
2007 XVECTOR (array
)->contents
[idxval
] = newelt
;
2009 else if (BOOL_VECTOR_P (array
))
2013 if (idxval
< 0 || idxval
>= XBOOL_VECTOR (array
)->size
)
2014 args_out_of_range (array
, idx
);
2016 val
= (unsigned char) XBOOL_VECTOR (array
)->data
[idxval
/ BOOL_VECTOR_BITS_PER_CHAR
];
2018 if (! NILP (newelt
))
2019 val
|= 1 << (idxval
% BOOL_VECTOR_BITS_PER_CHAR
);
2021 val
&= ~(1 << (idxval
% BOOL_VECTOR_BITS_PER_CHAR
));
2022 XBOOL_VECTOR (array
)->data
[idxval
/ BOOL_VECTOR_BITS_PER_CHAR
] = val
;
2024 else if (CHAR_TABLE_P (array
))
2026 CHECK_CHARACTER (idx
);
2027 CHAR_TABLE_SET (array
, idxval
, newelt
);
2029 else if (STRING_MULTIBYTE (array
))
2031 int idxval_byte
, prev_bytes
, new_bytes
, nbytes
;
2032 unsigned char workbuf
[MAX_MULTIBYTE_LENGTH
], *p0
= workbuf
, *p1
;
2034 if (idxval
< 0 || idxval
>= SCHARS (array
))
2035 args_out_of_range (array
, idx
);
2036 CHECK_CHARACTER (newelt
);
2038 nbytes
= SBYTES (array
);
2040 idxval_byte
= string_char_to_byte (array
, idxval
);
2041 p1
= SDATA (array
) + idxval_byte
;
2042 PARSE_MULTIBYTE_SEQ (p1
, nbytes
- idxval_byte
, prev_bytes
);
2043 new_bytes
= CHAR_STRING (XINT (newelt
), p0
);
2044 if (prev_bytes
!= new_bytes
)
2046 /* We must relocate the string data. */
2047 int nchars
= SCHARS (array
);
2051 SAFE_ALLOCA (str
, unsigned char *, nbytes
);
2052 bcopy (SDATA (array
), str
, nbytes
);
2053 allocate_string_data (XSTRING (array
), nchars
,
2054 nbytes
+ new_bytes
- prev_bytes
);
2055 bcopy (str
, SDATA (array
), idxval_byte
);
2056 p1
= SDATA (array
) + idxval_byte
;
2057 bcopy (str
+ idxval_byte
+ prev_bytes
, p1
+ new_bytes
,
2058 nbytes
- (idxval_byte
+ prev_bytes
));
2060 clear_string_char_byte_cache ();
2067 if (idxval
< 0 || idxval
>= SCHARS (array
))
2068 args_out_of_range (array
, idx
);
2069 CHECK_NUMBER (newelt
);
2071 if (XINT (newelt
) < 0 || ASCII_CHAR_P (XINT (newelt
))
2072 || CHAR_BYTE8_P (XINT (newelt
)))
2073 SSET (array
, idxval
, XINT (newelt
));
2076 /* We must relocate the string data while converting it to
2078 int idxval_byte
, prev_bytes
, new_bytes
;
2079 unsigned char workbuf
[MAX_MULTIBYTE_LENGTH
], *p0
= workbuf
, *p1
;
2080 unsigned char *origstr
= SDATA (array
), *str
;
2084 nchars
= SCHARS (array
);
2085 nbytes
= idxval_byte
= count_size_as_multibyte (origstr
, idxval
);
2086 nbytes
+= count_size_as_multibyte (origstr
+ idxval
,
2088 SAFE_ALLOCA (str
, unsigned char *, nbytes
);
2089 copy_text (SDATA (array
), str
, nchars
, 0, 1);
2090 PARSE_MULTIBYTE_SEQ (str
+ idxval_byte
, nbytes
- idxval_byte
,
2092 new_bytes
= CHAR_STRING (XINT (newelt
), p0
);
2093 allocate_string_data (XSTRING (array
), nchars
,
2094 nbytes
+ new_bytes
- prev_bytes
);
2095 bcopy (str
, SDATA (array
), idxval_byte
);
2096 p1
= SDATA (array
) + idxval_byte
;
2099 bcopy (str
+ idxval_byte
+ prev_bytes
, p1
,
2100 nbytes
- (idxval_byte
+ prev_bytes
));
2102 clear_string_char_byte_cache ();
2109 /* Arithmetic functions */
2111 enum comparison
{ equal
, notequal
, less
, grtr
, less_or_equal
, grtr_or_equal
};
2114 arithcompare (num1
, num2
, comparison
)
2115 Lisp_Object num1
, num2
;
2116 enum comparison comparison
;
2118 double f1
= 0, f2
= 0;
2121 CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (num1
);
2122 CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (num2
);
2124 if (FLOATP (num1
) || FLOATP (num2
))
2127 f1
= (FLOATP (num1
)) ? XFLOAT_DATA (num1
) : XINT (num1
);
2128 f2
= (FLOATP (num2
)) ? XFLOAT_DATA (num2
) : XINT (num2
);
2134 if (floatp
? f1
== f2
: XINT (num1
) == XINT (num2
))
2139 if (floatp
? f1
!= f2
: XINT (num1
) != XINT (num2
))
2144 if (floatp
? f1
< f2
: XINT (num1
) < XINT (num2
))
2149 if (floatp
? f1
<= f2
: XINT (num1
) <= XINT (num2
))
2154 if (floatp
? f1
> f2
: XINT (num1
) > XINT (num2
))
2159 if (floatp
? f1
>= f2
: XINT (num1
) >= XINT (num2
))
2168 DEFUN ("=", Feqlsign
, Seqlsign
, 2, 2, 0,
2169 doc
: /* Return t if two args, both numbers or markers, are equal. */)
2171 register Lisp_Object num1
, num2
;
2173 return arithcompare (num1
, num2
, equal
);
2176 DEFUN ("<", Flss
, Slss
, 2, 2, 0,
2177 doc
: /* Return t if first arg is less than second arg. Both must be numbers or markers. */)
2179 register Lisp_Object num1
, num2
;
2181 return arithcompare (num1
, num2
, less
);
2184 DEFUN (">", Fgtr
, Sgtr
, 2, 2, 0,
2185 doc
: /* Return t if first arg is greater than second arg. Both must be numbers or markers. */)
2187 register Lisp_Object num1
, num2
;
2189 return arithcompare (num1
, num2
, grtr
);
2192 DEFUN ("<=", Fleq
, Sleq
, 2, 2, 0,
2193 doc
: /* Return t if first arg is less than or equal to second arg.
2194 Both must be numbers or markers. */)
2196 register Lisp_Object num1
, num2
;
2198 return arithcompare (num1
, num2
, less_or_equal
);
2201 DEFUN (">=", Fgeq
, Sgeq
, 2, 2, 0,
2202 doc
: /* Return t if first arg is greater than or equal to second arg.
2203 Both must be numbers or markers. */)
2205 register Lisp_Object num1
, num2
;
2207 return arithcompare (num1
, num2
, grtr_or_equal
);
2210 DEFUN ("/=", Fneq
, Sneq
, 2, 2, 0,
2211 doc
: /* Return t if first arg is not equal to second arg. Both must be numbers or markers. */)
2213 register Lisp_Object num1
, num2
;
2215 return arithcompare (num1
, num2
, notequal
);
2218 DEFUN ("zerop", Fzerop
, Szerop
, 1, 1, 0,
2219 doc
: /* Return t if NUMBER is zero. */)
2221 register Lisp_Object number
;
2223 CHECK_NUMBER_OR_FLOAT (number
);
2225 if (FLOATP (number
))
2227 if (XFLOAT_DATA (number
) == 0.0)
2237 /* Convert between long values and pairs of Lisp integers. */
2243 unsigned long top
= i
>> 16;
2244 unsigned int bot
= i
& 0xFFFF;
2246 return make_number (bot
);
2247 if (top
== (unsigned long)-1 >> 16)
2248 return Fcons (make_number (-1), make_number (bot
));
2249 return Fcons (make_number (top
), make_number (bot
));
2256 Lisp_Object top
, bot
;
2263 return ((XINT (top
) << 16) | XINT (bot
));
2266 DEFUN ("number-to-string", Fnumber_to_string
, Snumber_to_string
, 1, 1, 0,
2267 doc
: /* Return the decimal representation of NUMBER as a string.
2268 Uses a minus sign if negative.
2269 NUMBER may be an integer or a floating point number. */)
2273 char buffer
[VALBITS
];
2275 CHECK_NUMBER_OR_FLOAT (number
);
2277 if (FLOATP (number
))
2279 char pigbuf
[350]; /* see comments in float_to_string */
2281 float_to_string (pigbuf
, XFLOAT_DATA (number
));
2282 return build_string (pigbuf
);
2285 if (sizeof (int) == sizeof (EMACS_INT
))
2286 sprintf (buffer
, "%d", XINT (number
));
2287 else if (sizeof (long) == sizeof (EMACS_INT
))
2288 sprintf (buffer
, "%ld", (long) XINT (number
));
2291 return build_string (buffer
);
2295 digit_to_number (character
, base
)
2296 int character
, base
;
2300 if (character
>= '0' && character
<= '9')
2301 digit
= character
- '0';
2302 else if (character
>= 'a' && character
<= 'z')
2303 digit
= character
- 'a' + 10;
2304 else if (character
>= 'A' && character
<= 'Z')
2305 digit
= character
- 'A' + 10;
2315 DEFUN ("string-to-number", Fstring_to_number
, Sstring_to_number
, 1, 2, 0,
2316 doc
: /* Parse STRING as a decimal number and return the number.
2317 This parses both integers and floating point numbers.
2318 It ignores leading spaces and tabs.
2320 If BASE, interpret STRING as a number in that base. If BASE isn't
2321 present, base 10 is used. BASE must be between 2 and 16 (inclusive).
2322 If the base used is not 10, floating point is not recognized. */)
2324 register Lisp_Object string
, base
;
2326 register unsigned char *p
;
2331 CHECK_STRING (string
);
2337 CHECK_NUMBER (base
);
2339 if (b
< 2 || b
> 16)
2340 Fsignal (Qargs_out_of_range
, Fcons (base
, Qnil
));
2343 /* Skip any whitespace at the front of the number. Some versions of
2344 atoi do this anyway, so we might as well make Emacs lisp consistent. */
2346 while (*p
== ' ' || *p
== '\t')
2357 if (isfloat_string (p
) && b
== 10)
2358 val
= make_float (sign
* atof (p
));
2365 int digit
= digit_to_number (*p
++, b
);
2371 val
= make_fixnum_or_float (sign
* v
);
2391 static Lisp_Object float_arith_driver
P_ ((double, int, enum arithop
,
2392 int, Lisp_Object
*));
2393 extern Lisp_Object
fmod_float ();
2396 arith_driver (code
, nargs
, args
)
2399 register Lisp_Object
*args
;
2401 register Lisp_Object val
;
2402 register int argnum
;
2403 register EMACS_INT accum
= 0;
2404 register EMACS_INT next
;
2406 switch (SWITCH_ENUM_CAST (code
))
2424 for (argnum
= 0; argnum
< nargs
; argnum
++)
2426 /* Using args[argnum] as argument to CHECK_NUMBER_... */
2428 CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (val
);
2431 return float_arith_driver ((double) accum
, argnum
, code
,
2434 next
= XINT (args
[argnum
]);
2435 switch (SWITCH_ENUM_CAST (code
))
2441 accum
= argnum
? accum
- next
: nargs
== 1 ? - next
: next
;
2452 Fsignal (Qarith_error
, Qnil
);
2466 if (!argnum
|| next
> accum
)
2470 if (!argnum
|| next
< accum
)
2476 XSETINT (val
, accum
);
2481 #define isnan(x) ((x) != (x))
2484 float_arith_driver (accum
, argnum
, code
, nargs
, args
)
2486 register int argnum
;
2489 register Lisp_Object
*args
;
2491 register Lisp_Object val
;
2494 for (; argnum
< nargs
; argnum
++)
2496 val
= args
[argnum
]; /* using args[argnum] as argument to CHECK_NUMBER_... */
2497 CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (val
);
2501 next
= XFLOAT_DATA (val
);
2505 args
[argnum
] = val
; /* runs into a compiler bug. */
2506 next
= XINT (args
[argnum
]);
2508 switch (SWITCH_ENUM_CAST (code
))
2514 accum
= argnum
? accum
- next
: nargs
== 1 ? - next
: next
;
2524 if (! IEEE_FLOATING_POINT
&& next
== 0)
2525 Fsignal (Qarith_error
, Qnil
);
2532 return wrong_type_argument (Qinteger_or_marker_p
, val
);
2534 if (!argnum
|| isnan (next
) || next
> accum
)
2538 if (!argnum
|| isnan (next
) || next
< accum
)
2544 return make_float (accum
);
2548 DEFUN ("+", Fplus
, Splus
, 0, MANY
, 0,
2549 doc
: /* Return sum of any number of arguments, which are numbers or markers.
2550 usage: (+ &rest NUMBERS-OR-MARKERS) */)
2555 return arith_driver (Aadd
, nargs
, args
);
2558 DEFUN ("-", Fminus
, Sminus
, 0, MANY
, 0,
2559 doc
: /* Negate number or subtract numbers or markers and return the result.
2560 With one arg, negates it. With more than one arg,
2561 subtracts all but the first from the first.
2562 usage: (- &optional NUMBER-OR-MARKER &rest MORE-NUMBERS-OR-MARKERS) */)
2567 return arith_driver (Asub
, nargs
, args
);
2570 DEFUN ("*", Ftimes
, Stimes
, 0, MANY
, 0,
2571 doc
: /* Return product of any number of arguments, which are numbers or markers.
2572 usage: (* &rest NUMBERS-OR-MARKERS) */)
2577 return arith_driver (Amult
, nargs
, args
);
2580 DEFUN ("/", Fquo
, Squo
, 2, MANY
, 0,
2581 doc
: /* Return first argument divided by all the remaining arguments.
2582 The arguments must be numbers or markers.
2583 usage: (/ DIVIDEND DIVISOR &rest DIVISORS) */)
2589 for (argnum
= 2; argnum
< nargs
; argnum
++)
2590 if (FLOATP (args
[argnum
]))
2591 return float_arith_driver (0, 0, Adiv
, nargs
, args
);
2592 return arith_driver (Adiv
, nargs
, args
);
2595 DEFUN ("%", Frem
, Srem
, 2, 2, 0,
2596 doc
: /* Return remainder of X divided by Y.
2597 Both must be integers or markers. */)
2599 register Lisp_Object x
, y
;
2603 CHECK_NUMBER_COERCE_MARKER (x
);
2604 CHECK_NUMBER_COERCE_MARKER (y
);
2606 if (XFASTINT (y
) == 0)
2607 Fsignal (Qarith_error
, Qnil
);
2609 XSETINT (val
, XINT (x
) % XINT (y
));
2623 /* If the magnitude of the result exceeds that of the divisor, or
2624 the sign of the result does not agree with that of the dividend,
2625 iterate with the reduced value. This does not yield a
2626 particularly accurate result, but at least it will be in the
2627 range promised by fmod. */
2629 r
-= f2
* floor (r
/ f2
);
2630 while (f2
<= (r
< 0 ? -r
: r
) || ((r
< 0) != (f1
< 0) && ! isnan (r
)));
2634 #endif /* ! HAVE_FMOD */
2636 DEFUN ("mod", Fmod
, Smod
, 2, 2, 0,
2637 doc
: /* Return X modulo Y.
2638 The result falls between zero (inclusive) and Y (exclusive).
2639 Both X and Y must be numbers or markers. */)
2641 register Lisp_Object x
, y
;
2646 CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (x
);
2647 CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (y
);
2649 if (FLOATP (x
) || FLOATP (y
))
2650 return fmod_float (x
, y
);
2656 Fsignal (Qarith_error
, Qnil
);
2660 /* If the "remainder" comes out with the wrong sign, fix it. */
2661 if (i2
< 0 ? i1
> 0 : i1
< 0)
2668 DEFUN ("max", Fmax
, Smax
, 1, MANY
, 0,
2669 doc
: /* Return largest of all the arguments (which must be numbers or markers).
2670 The value is always a number; markers are converted to numbers.
2671 usage: (max NUMBER-OR-MARKER &rest NUMBERS-OR-MARKERS) */)
2676 return arith_driver (Amax
, nargs
, args
);
2679 DEFUN ("min", Fmin
, Smin
, 1, MANY
, 0,
2680 doc
: /* Return smallest of all the arguments (which must be numbers or markers).
2681 The value is always a number; markers are converted to numbers.
2682 usage: (min NUMBER-OR-MARKER &rest NUMBERS-OR-MARKERS) */)
2687 return arith_driver (Amin
, nargs
, args
);
2690 DEFUN ("logand", Flogand
, Slogand
, 0, MANY
, 0,
2691 doc
: /* Return bitwise-and of all the arguments.
2692 Arguments may be integers, or markers converted to integers.
2693 usage: (logand &rest INTS-OR-MARKERS) */)
2698 return arith_driver (Alogand
, nargs
, args
);
2701 DEFUN ("logior", Flogior
, Slogior
, 0, MANY
, 0,
2702 doc
: /* Return bitwise-or of all the arguments.
2703 Arguments may be integers, or markers converted to integers.
2704 usage: (logior &rest INTS-OR-MARKERS) */)
2709 return arith_driver (Alogior
, nargs
, args
);
2712 DEFUN ("logxor", Flogxor
, Slogxor
, 0, MANY
, 0,
2713 doc
: /* Return bitwise-exclusive-or of all the arguments.
2714 Arguments may be integers, or markers converted to integers.
2715 usage: (logxor &rest INTS-OR-MARKERS) */)
2720 return arith_driver (Alogxor
, nargs
, args
);
2723 DEFUN ("ash", Fash
, Sash
, 2, 2, 0,
2724 doc
: /* Return VALUE with its bits shifted left by COUNT.
2725 If COUNT is negative, shifting is actually to the right.
2726 In this case, the sign bit is duplicated. */)
2728 register Lisp_Object value
, count
;
2730 register Lisp_Object val
;
2732 CHECK_NUMBER (value
);
2733 CHECK_NUMBER (count
);
2735 if (XINT (count
) >= BITS_PER_EMACS_INT
)
2737 else if (XINT (count
) > 0)
2738 XSETINT (val
, XINT (value
) << XFASTINT (count
));
2739 else if (XINT (count
) <= -BITS_PER_EMACS_INT
)
2740 XSETINT (val
, XINT (value
) < 0 ? -1 : 0);
2742 XSETINT (val
, XINT (value
) >> -XINT (count
));
2746 DEFUN ("lsh", Flsh
, Slsh
, 2, 2, 0,
2747 doc
: /* Return VALUE with its bits shifted left by COUNT.
2748 If COUNT is negative, shifting is actually to the right.
2749 In this case, zeros are shifted in on the left. */)
2751 register Lisp_Object value
, count
;
2753 register Lisp_Object val
;
2755 CHECK_NUMBER (value
);
2756 CHECK_NUMBER (count
);
2758 if (XINT (count
) >= BITS_PER_EMACS_INT
)
2760 else if (XINT (count
) > 0)
2761 XSETINT (val
, (EMACS_UINT
) XUINT (value
) << XFASTINT (count
));
2762 else if (XINT (count
) <= -BITS_PER_EMACS_INT
)
2765 XSETINT (val
, (EMACS_UINT
) XUINT (value
) >> -XINT (count
));
2769 DEFUN ("1+", Fadd1
, Sadd1
, 1, 1, 0,
2770 doc
: /* Return NUMBER plus one. NUMBER may be a number or a marker.
2771 Markers are converted to integers. */)
2773 register Lisp_Object number
;
2775 CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (number
);
2777 if (FLOATP (number
))
2778 return (make_float (1.0 + XFLOAT_DATA (number
)));
2780 XSETINT (number
, XINT (number
) + 1);
2784 DEFUN ("1-", Fsub1
, Ssub1
, 1, 1, 0,
2785 doc
: /* Return NUMBER minus one. NUMBER may be a number or a marker.
2786 Markers are converted to integers. */)
2788 register Lisp_Object number
;
2790 CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (number
);
2792 if (FLOATP (number
))
2793 return (make_float (-1.0 + XFLOAT_DATA (number
)));
2795 XSETINT (number
, XINT (number
) - 1);
2799 DEFUN ("lognot", Flognot
, Slognot
, 1, 1, 0,
2800 doc
: /* Return the bitwise complement of NUMBER. NUMBER must be an integer. */)
2802 register Lisp_Object number
;
2804 CHECK_NUMBER (number
);
2805 XSETINT (number
, ~XINT (number
));
2809 DEFUN ("byteorder", Fbyteorder
, Sbyteorder
, 0, 0, 0,
2810 doc
: /* Return the byteorder for the machine.
2811 Returns 66 (ASCII uppercase B) for big endian machines or 108 (ASCII
2812 lowercase l) for small endian machines. */)
2815 unsigned i
= 0x04030201;
2816 int order
= *(char *)&i
== 1 ? 108 : 66;
2818 return make_number (order
);
2826 Lisp_Object error_tail
, arith_tail
;
2828 Qquote
= intern ("quote");
2829 Qlambda
= intern ("lambda");
2830 Qsubr
= intern ("subr");
2831 Qerror_conditions
= intern ("error-conditions");
2832 Qerror_message
= intern ("error-message");
2833 Qtop_level
= intern ("top-level");
2835 Qerror
= intern ("error");
2836 Qquit
= intern ("quit");
2837 Qwrong_type_argument
= intern ("wrong-type-argument");
2838 Qargs_out_of_range
= intern ("args-out-of-range");
2839 Qvoid_function
= intern ("void-function");
2840 Qcyclic_function_indirection
= intern ("cyclic-function-indirection");
2841 Qcyclic_variable_indirection
= intern ("cyclic-variable-indirection");
2842 Qvoid_variable
= intern ("void-variable");
2843 Qsetting_constant
= intern ("setting-constant");
2844 Qinvalid_read_syntax
= intern ("invalid-read-syntax");
2846 Qinvalid_function
= intern ("invalid-function");
2847 Qwrong_number_of_arguments
= intern ("wrong-number-of-arguments");
2848 Qno_catch
= intern ("no-catch");
2849 Qend_of_file
= intern ("end-of-file");
2850 Qarith_error
= intern ("arith-error");
2851 Qbeginning_of_buffer
= intern ("beginning-of-buffer");
2852 Qend_of_buffer
= intern ("end-of-buffer");
2853 Qbuffer_read_only
= intern ("buffer-read-only");
2854 Qtext_read_only
= intern ("text-read-only");
2855 Qmark_inactive
= intern ("mark-inactive");
2857 Qlistp
= intern ("listp");
2858 Qconsp
= intern ("consp");
2859 Qsymbolp
= intern ("symbolp");
2860 Qkeywordp
= intern ("keywordp");
2861 Qintegerp
= intern ("integerp");
2862 Qnatnump
= intern ("natnump");
2863 Qwholenump
= intern ("wholenump");
2864 Qstringp
= intern ("stringp");
2865 Qarrayp
= intern ("arrayp");
2866 Qsequencep
= intern ("sequencep");
2867 Qbufferp
= intern ("bufferp");
2868 Qvectorp
= intern ("vectorp");
2869 Qchar_or_string_p
= intern ("char-or-string-p");
2870 Qmarkerp
= intern ("markerp");
2871 Qbuffer_or_string_p
= intern ("buffer-or-string-p");
2872 Qinteger_or_marker_p
= intern ("integer-or-marker-p");
2873 Qboundp
= intern ("boundp");
2874 Qfboundp
= intern ("fboundp");
2876 Qfloatp
= intern ("floatp");
2877 Qnumberp
= intern ("numberp");
2878 Qnumber_or_marker_p
= intern ("number-or-marker-p");
2880 Qchar_table_p
= intern ("char-table-p");
2881 Qvector_or_char_table_p
= intern ("vector-or-char-table-p");
2883 Qsubrp
= intern ("subrp");
2884 Qunevalled
= intern ("unevalled");
2885 Qmany
= intern ("many");
2887 Qcdr
= intern ("cdr");
2889 /* Handle automatic advice activation */
2890 Qad_advice_info
= intern ("ad-advice-info");
2891 Qad_activate_internal
= intern ("ad-activate-internal");
2893 error_tail
= Fcons (Qerror
, Qnil
);
2895 /* ERROR is used as a signaler for random errors for which nothing else is right */
2897 Fput (Qerror
, Qerror_conditions
,
2899 Fput (Qerror
, Qerror_message
,
2900 build_string ("error"));
2902 Fput (Qquit
, Qerror_conditions
,
2903 Fcons (Qquit
, Qnil
));
2904 Fput (Qquit
, Qerror_message
,
2905 build_string ("Quit"));
2907 Fput (Qwrong_type_argument
, Qerror_conditions
,
2908 Fcons (Qwrong_type_argument
, error_tail
));
2909 Fput (Qwrong_type_argument
, Qerror_message
,
2910 build_string ("Wrong type argument"));
2912 Fput (Qargs_out_of_range
, Qerror_conditions
,
2913 Fcons (Qargs_out_of_range
, error_tail
));
2914 Fput (Qargs_out_of_range
, Qerror_message
,
2915 build_string ("Args out of range"));
2917 Fput (Qvoid_function
, Qerror_conditions
,
2918 Fcons (Qvoid_function
, error_tail
));
2919 Fput (Qvoid_function
, Qerror_message
,
2920 build_string ("Symbol's function definition is void"));
2922 Fput (Qcyclic_function_indirection
, Qerror_conditions
,
2923 Fcons (Qcyclic_function_indirection
, error_tail
));
2924 Fput (Qcyclic_function_indirection
, Qerror_message
,
2925 build_string ("Symbol's chain of function indirections contains a loop"));
2927 Fput (Qcyclic_variable_indirection
, Qerror_conditions
,
2928 Fcons (Qcyclic_variable_indirection
, error_tail
));
2929 Fput (Qcyclic_variable_indirection
, Qerror_message
,
2930 build_string ("Symbol's chain of variable indirections contains a loop"));
2932 Qcircular_list
= intern ("circular-list");
2933 staticpro (&Qcircular_list
);
2934 Fput (Qcircular_list
, Qerror_conditions
,
2935 Fcons (Qcircular_list
, error_tail
));
2936 Fput (Qcircular_list
, Qerror_message
,
2937 build_string ("List contains a loop"));
2939 Fput (Qvoid_variable
, Qerror_conditions
,
2940 Fcons (Qvoid_variable
, error_tail
));
2941 Fput (Qvoid_variable
, Qerror_message
,
2942 build_string ("Symbol's value as variable is void"));
2944 Fput (Qsetting_constant
, Qerror_conditions
,
2945 Fcons (Qsetting_constant
, error_tail
));
2946 Fput (Qsetting_constant
, Qerror_message
,
2947 build_string ("Attempt to set a constant symbol"));
2949 Fput (Qinvalid_read_syntax
, Qerror_conditions
,
2950 Fcons (Qinvalid_read_syntax
, error_tail
));
2951 Fput (Qinvalid_read_syntax
, Qerror_message
,
2952 build_string ("Invalid read syntax"));
2954 Fput (Qinvalid_function
, Qerror_conditions
,
2955 Fcons (Qinvalid_function
, error_tail
));
2956 Fput (Qinvalid_function
, Qerror_message
,
2957 build_string ("Invalid function"));
2959 Fput (Qwrong_number_of_arguments
, Qerror_conditions
,
2960 Fcons (Qwrong_number_of_arguments
, error_tail
));
2961 Fput (Qwrong_number_of_arguments
, Qerror_message
,
2962 build_string ("Wrong number of arguments"));
2964 Fput (Qno_catch
, Qerror_conditions
,
2965 Fcons (Qno_catch
, error_tail
));
2966 Fput (Qno_catch
, Qerror_message
,
2967 build_string ("No catch for tag"));
2969 Fput (Qend_of_file
, Qerror_conditions
,
2970 Fcons (Qend_of_file
, error_tail
));
2971 Fput (Qend_of_file
, Qerror_message
,
2972 build_string ("End of file during parsing"));
2974 arith_tail
= Fcons (Qarith_error
, error_tail
);
2975 Fput (Qarith_error
, Qerror_conditions
,
2977 Fput (Qarith_error
, Qerror_message
,
2978 build_string ("Arithmetic error"));
2980 Fput (Qbeginning_of_buffer
, Qerror_conditions
,
2981 Fcons (Qbeginning_of_buffer
, error_tail
));
2982 Fput (Qbeginning_of_buffer
, Qerror_message
,
2983 build_string ("Beginning of buffer"));
2985 Fput (Qend_of_buffer
, Qerror_conditions
,
2986 Fcons (Qend_of_buffer
, error_tail
));
2987 Fput (Qend_of_buffer
, Qerror_message
,
2988 build_string ("End of buffer"));
2990 Fput (Qbuffer_read_only
, Qerror_conditions
,
2991 Fcons (Qbuffer_read_only
, error_tail
));
2992 Fput (Qbuffer_read_only
, Qerror_message
,
2993 build_string ("Buffer is read-only"));
2995 Fput (Qtext_read_only
, Qerror_conditions
,
2996 Fcons (Qtext_read_only
, error_tail
));
2997 Fput (Qtext_read_only
, Qerror_message
,
2998 build_string ("Text is read-only"));
3000 Qrange_error
= intern ("range-error");
3001 Qdomain_error
= intern ("domain-error");
3002 Qsingularity_error
= intern ("singularity-error");
3003 Qoverflow_error
= intern ("overflow-error");
3004 Qunderflow_error
= intern ("underflow-error");
3006 Fput (Qdomain_error
, Qerror_conditions
,
3007 Fcons (Qdomain_error
, arith_tail
));
3008 Fput (Qdomain_error
, Qerror_message
,
3009 build_string ("Arithmetic domain error"));
3011 Fput (Qrange_error
, Qerror_conditions
,
3012 Fcons (Qrange_error
, arith_tail
));
3013 Fput (Qrange_error
, Qerror_message
,
3014 build_string ("Arithmetic range error"));
3016 Fput (Qsingularity_error
, Qerror_conditions
,
3017 Fcons (Qsingularity_error
, Fcons (Qdomain_error
, arith_tail
)));
3018 Fput (Qsingularity_error
, Qerror_message
,
3019 build_string ("Arithmetic singularity error"));
3021 Fput (Qoverflow_error
, Qerror_conditions
,
3022 Fcons (Qoverflow_error
, Fcons (Qdomain_error
, arith_tail
)));
3023 Fput (Qoverflow_error
, Qerror_message
,
3024 build_string ("Arithmetic overflow error"));
3026 Fput (Qunderflow_error
, Qerror_conditions
,
3027 Fcons (Qunderflow_error
, Fcons (Qdomain_error
, arith_tail
)));
3028 Fput (Qunderflow_error
, Qerror_message
,
3029 build_string ("Arithmetic underflow error"));
3031 staticpro (&Qrange_error
);
3032 staticpro (&Qdomain_error
);
3033 staticpro (&Qsingularity_error
);
3034 staticpro (&Qoverflow_error
);
3035 staticpro (&Qunderflow_error
);
3039 staticpro (&Qquote
);
3040 staticpro (&Qlambda
);
3042 staticpro (&Qunbound
);
3043 staticpro (&Qerror_conditions
);
3044 staticpro (&Qerror_message
);
3045 staticpro (&Qtop_level
);
3047 staticpro (&Qerror
);
3049 staticpro (&Qwrong_type_argument
);
3050 staticpro (&Qargs_out_of_range
);
3051 staticpro (&Qvoid_function
);
3052 staticpro (&Qcyclic_function_indirection
);
3053 staticpro (&Qvoid_variable
);
3054 staticpro (&Qsetting_constant
);
3055 staticpro (&Qinvalid_read_syntax
);
3056 staticpro (&Qwrong_number_of_arguments
);
3057 staticpro (&Qinvalid_function
);
3058 staticpro (&Qno_catch
);
3059 staticpro (&Qend_of_file
);
3060 staticpro (&Qarith_error
);
3061 staticpro (&Qbeginning_of_buffer
);
3062 staticpro (&Qend_of_buffer
);
3063 staticpro (&Qbuffer_read_only
);
3064 staticpro (&Qtext_read_only
);
3065 staticpro (&Qmark_inactive
);
3067 staticpro (&Qlistp
);
3068 staticpro (&Qconsp
);
3069 staticpro (&Qsymbolp
);
3070 staticpro (&Qkeywordp
);
3071 staticpro (&Qintegerp
);
3072 staticpro (&Qnatnump
);
3073 staticpro (&Qwholenump
);
3074 staticpro (&Qstringp
);
3075 staticpro (&Qarrayp
);
3076 staticpro (&Qsequencep
);
3077 staticpro (&Qbufferp
);
3078 staticpro (&Qvectorp
);
3079 staticpro (&Qchar_or_string_p
);
3080 staticpro (&Qmarkerp
);
3081 staticpro (&Qbuffer_or_string_p
);
3082 staticpro (&Qinteger_or_marker_p
);
3083 staticpro (&Qfloatp
);
3084 staticpro (&Qnumberp
);
3085 staticpro (&Qnumber_or_marker_p
);
3086 staticpro (&Qchar_table_p
);
3087 staticpro (&Qvector_or_char_table_p
);
3088 staticpro (&Qsubrp
);
3090 staticpro (&Qunevalled
);
3092 staticpro (&Qboundp
);
3093 staticpro (&Qfboundp
);
3095 staticpro (&Qad_advice_info
);
3096 staticpro (&Qad_activate_internal
);
3098 /* Types that type-of returns. */
3099 Qinteger
= intern ("integer");
3100 Qsymbol
= intern ("symbol");
3101 Qstring
= intern ("string");
3102 Qcons
= intern ("cons");
3103 Qmarker
= intern ("marker");
3104 Qoverlay
= intern ("overlay");
3105 Qfloat
= intern ("float");
3106 Qwindow_configuration
= intern ("window-configuration");
3107 Qprocess
= intern ("process");
3108 Qwindow
= intern ("window");
3109 /* Qsubr = intern ("subr"); */
3110 Qcompiled_function
= intern ("compiled-function");
3111 Qbuffer
= intern ("buffer");
3112 Qframe
= intern ("frame");
3113 Qvector
= intern ("vector");
3114 Qchar_table
= intern ("char-table");
3115 Qbool_vector
= intern ("bool-vector");
3116 Qhash_table
= intern ("hash-table");
3118 staticpro (&Qinteger
);
3119 staticpro (&Qsymbol
);
3120 staticpro (&Qstring
);
3122 staticpro (&Qmarker
);
3123 staticpro (&Qoverlay
);
3124 staticpro (&Qfloat
);
3125 staticpro (&Qwindow_configuration
);
3126 staticpro (&Qprocess
);
3127 staticpro (&Qwindow
);
3128 /* staticpro (&Qsubr); */
3129 staticpro (&Qcompiled_function
);
3130 staticpro (&Qbuffer
);
3131 staticpro (&Qframe
);
3132 staticpro (&Qvector
);
3133 staticpro (&Qchar_table
);
3134 staticpro (&Qbool_vector
);
3135 staticpro (&Qhash_table
);
3137 defsubr (&Sindirect_variable
);
3138 defsubr (&Sinteractive_form
);
3141 defsubr (&Stype_of
);
3146 defsubr (&Sintegerp
);
3147 defsubr (&Sinteger_or_marker_p
);
3148 defsubr (&Snumberp
);
3149 defsubr (&Snumber_or_marker_p
);
3151 defsubr (&Snatnump
);
3152 defsubr (&Ssymbolp
);
3153 defsubr (&Skeywordp
);
3154 defsubr (&Sstringp
);
3155 defsubr (&Smultibyte_string_p
);
3156 defsubr (&Svectorp
);
3157 defsubr (&Schar_table_p
);
3158 defsubr (&Svector_or_char_table_p
);
3159 defsubr (&Sbool_vector_p
);
3161 defsubr (&Ssequencep
);
3162 defsubr (&Sbufferp
);
3163 defsubr (&Smarkerp
);
3165 defsubr (&Sbyte_code_function_p
);
3166 defsubr (&Schar_or_string_p
);
3169 defsubr (&Scar_safe
);
3170 defsubr (&Scdr_safe
);
3173 defsubr (&Ssymbol_function
);
3174 defsubr (&Sindirect_function
);
3175 defsubr (&Ssymbol_plist
);
3176 defsubr (&Ssymbol_name
);
3177 defsubr (&Smakunbound
);
3178 defsubr (&Sfmakunbound
);
3180 defsubr (&Sfboundp
);
3182 defsubr (&Sdefalias
);
3183 defsubr (&Ssetplist
);
3184 defsubr (&Ssymbol_value
);
3186 defsubr (&Sdefault_boundp
);
3187 defsubr (&Sdefault_value
);
3188 defsubr (&Sset_default
);
3189 defsubr (&Ssetq_default
);
3190 defsubr (&Smake_variable_buffer_local
);
3191 defsubr (&Smake_local_variable
);
3192 defsubr (&Skill_local_variable
);
3193 defsubr (&Smake_variable_frame_local
);
3194 defsubr (&Slocal_variable_p
);
3195 defsubr (&Slocal_variable_if_set_p
);
3196 defsubr (&Svariable_binding_locus
);
3199 defsubr (&Snumber_to_string
);
3200 defsubr (&Sstring_to_number
);
3201 defsubr (&Seqlsign
);
3224 defsubr (&Sbyteorder
);
3225 defsubr (&Ssubr_arity
);
3226 defsubr (&Ssubr_name
);
3228 XSYMBOL (Qwholenump
)->function
= XSYMBOL (Qnatnump
)->function
;
3230 DEFVAR_LISP ("most-positive-fixnum", &Vmost_positive_fixnum
,
3231 doc
: /* The largest value that is representable in a Lisp integer. */);
3232 Vmost_positive_fixnum
= make_number (MOST_POSITIVE_FIXNUM
);
3234 DEFVAR_LISP ("most-negative-fixnum", &Vmost_negative_fixnum
,
3235 doc
: /* The smallest value that is representable in a Lisp integer. */);
3236 Vmost_negative_fixnum
= make_number (MOST_NEGATIVE_FIXNUM
);
3243 #if defined(USG) && !defined(POSIX_SIGNALS)
3244 /* USG systems forget handlers when they are used;
3245 must reestablish each time */
3246 signal (signo
, arith_error
);
3249 /* VMS systems are like USG. */
3250 signal (signo
, arith_error
);
3254 #else /* not BSD4_1 */
3255 sigsetmask (SIGEMPTYMASK
);
3256 #endif /* not BSD4_1 */
3258 Fsignal (Qarith_error
, Qnil
);
3264 /* Don't do this if just dumping out.
3265 We don't want to call `signal' in this case
3266 so that we don't have trouble with dumping
3267 signal-delivering routines in an inconsistent state. */
3271 #endif /* CANNOT_DUMP */
3272 signal (SIGFPE
, arith_error
);
3275 signal (SIGEMT
, arith_error
);
3279 /* arch-tag: 25879798-b84d-479a-9c89-7d148e2109f7
3280 (do not change this comment) */