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 when set there.
1798 More precisely, this means that setting the variable \(with `set' or`setq'),
1799 while it does not have a `let'-style binding that was made in BUFFER,
1800 will produce a buffer local binding. See Info node
1801 `(elisp)Creating Buffer-Local'.
1802 BUFFER defaults to the current buffer. */)
1804 register Lisp_Object variable
, buffer
;
1806 Lisp_Object valcontents
;
1807 register struct buffer
*buf
;
1810 buf
= current_buffer
;
1813 CHECK_BUFFER (buffer
);
1814 buf
= XBUFFER (buffer
);
1817 CHECK_SYMBOL (variable
);
1818 variable
= indirect_variable (variable
);
1820 valcontents
= SYMBOL_VALUE (variable
);
1822 /* This means that make-variable-buffer-local was done. */
1823 if (BUFFER_LOCAL_VALUEP (valcontents
))
1825 /* All these slots become local if they are set. */
1826 if (BUFFER_OBJFWDP (valcontents
))
1828 if (SOME_BUFFER_LOCAL_VALUEP (valcontents
))
1830 Lisp_Object tail
, elt
;
1831 for (tail
= buf
->local_var_alist
; CONSP (tail
); tail
= XCDR (tail
))
1834 if (EQ (variable
, XCAR (elt
)))
1841 DEFUN ("variable-binding-locus", Fvariable_binding_locus
, Svariable_binding_locus
,
1843 doc
: /* Return a value indicating where VARIABLE's current binding comes from.
1844 If the current binding is buffer-local, the value is the current buffer.
1845 If the current binding is frame-local, the value is the selected frame.
1846 If the current binding is global (the default), the value is nil. */)
1848 register Lisp_Object variable
;
1850 Lisp_Object valcontents
;
1852 CHECK_SYMBOL (variable
);
1853 variable
= indirect_variable (variable
);
1855 /* Make sure the current binding is actually swapped in. */
1856 find_symbol_value (variable
);
1858 valcontents
= XSYMBOL (variable
)->value
;
1860 if (BUFFER_LOCAL_VALUEP (valcontents
)
1861 || SOME_BUFFER_LOCAL_VALUEP (valcontents
)
1862 || BUFFER_OBJFWDP (valcontents
))
1864 /* For a local variable, record both the symbol and which
1865 buffer's or frame's value we are saving. */
1866 if (!NILP (Flocal_variable_p (variable
, Qnil
)))
1867 return Fcurrent_buffer ();
1868 else if (!BUFFER_OBJFWDP (valcontents
)
1869 && XBUFFER_LOCAL_VALUE (valcontents
)->found_for_frame
)
1870 return XBUFFER_LOCAL_VALUE (valcontents
)->frame
;
1876 /* Find the function at the end of a chain of symbol function indirections. */
1878 /* If OBJECT is a symbol, find the end of its function chain and
1879 return the value found there. If OBJECT is not a symbol, just
1880 return it. If there is a cycle in the function chain, signal a
1881 cyclic-function-indirection error.
1883 This is like Findirect_function, except that it doesn't signal an
1884 error if the chain ends up unbound. */
1886 indirect_function (object
)
1887 register Lisp_Object object
;
1889 Lisp_Object tortoise
, hare
;
1891 hare
= tortoise
= object
;
1895 if (!SYMBOLP (hare
) || EQ (hare
, Qunbound
))
1897 hare
= XSYMBOL (hare
)->function
;
1898 if (!SYMBOLP (hare
) || EQ (hare
, Qunbound
))
1900 hare
= XSYMBOL (hare
)->function
;
1902 tortoise
= XSYMBOL (tortoise
)->function
;
1904 if (EQ (hare
, tortoise
))
1905 Fsignal (Qcyclic_function_indirection
, Fcons (object
, Qnil
));
1911 DEFUN ("indirect-function", Findirect_function
, Sindirect_function
, 1, 1, 0,
1912 doc
: /* Return the function at the end of OBJECT's function chain.
1913 If OBJECT is a symbol, follow all function indirections and return the final
1915 If OBJECT is not a symbol, just return it.
1916 Signal a void-function error if the final symbol is unbound.
1917 Signal a cyclic-function-indirection error if there is a loop in the
1918 function chain of symbols. */)
1920 register Lisp_Object object
;
1924 result
= indirect_function (object
);
1926 if (EQ (result
, Qunbound
))
1927 return Fsignal (Qvoid_function
, Fcons (object
, Qnil
));
1931 /* Extract and set vector and string elements */
1933 DEFUN ("aref", Faref
, Saref
, 2, 2, 0,
1934 doc
: /* Return the element of ARRAY at index IDX.
1935 ARRAY may be a vector, a string, a char-table, a bool-vector,
1936 or a byte-code object. IDX starts at 0. */)
1938 register Lisp_Object array
;
1941 register int idxval
;
1944 idxval
= XINT (idx
);
1945 if (STRINGP (array
))
1949 if (idxval
< 0 || idxval
>= SCHARS (array
))
1950 args_out_of_range (array
, idx
);
1951 if (! STRING_MULTIBYTE (array
))
1952 return make_number ((unsigned char) SREF (array
, idxval
));
1953 idxval_byte
= string_char_to_byte (array
, idxval
);
1955 c
= STRING_CHAR (SDATA (array
) + idxval_byte
,
1956 SBYTES (array
) - idxval_byte
);
1957 return make_number (c
);
1959 else if (BOOL_VECTOR_P (array
))
1963 if (idxval
< 0 || idxval
>= XBOOL_VECTOR (array
)->size
)
1964 args_out_of_range (array
, idx
);
1966 val
= (unsigned char) XBOOL_VECTOR (array
)->data
[idxval
/ BOOL_VECTOR_BITS_PER_CHAR
];
1967 return (val
& (1 << (idxval
% BOOL_VECTOR_BITS_PER_CHAR
)) ? Qt
: Qnil
);
1969 else if (CHAR_TABLE_P (array
))
1971 CHECK_CHARACTER (idx
);
1972 return CHAR_TABLE_REF (array
, idxval
);
1977 if (VECTORP (array
))
1978 size
= XVECTOR (array
)->size
;
1979 else if (COMPILEDP (array
))
1980 size
= XVECTOR (array
)->size
& PSEUDOVECTOR_SIZE_MASK
;
1982 wrong_type_argument (Qarrayp
, array
);
1984 if (idxval
< 0 || idxval
>= size
)
1985 args_out_of_range (array
, idx
);
1986 return XVECTOR (array
)->contents
[idxval
];
1990 DEFUN ("aset", Faset
, Saset
, 3, 3, 0,
1991 doc
: /* Store into the element of ARRAY at index IDX the value NEWELT.
1992 Return NEWELT. ARRAY may be a vector, a string, a char-table or a
1993 bool-vector. IDX starts at 0. */)
1994 (array
, idx
, newelt
)
1995 register Lisp_Object array
;
1996 Lisp_Object idx
, newelt
;
1998 register int idxval
;
2001 idxval
= XINT (idx
);
2002 if (!VECTORP (array
) && !STRINGP (array
) && !BOOL_VECTOR_P (array
)
2003 && ! CHAR_TABLE_P (array
))
2004 array
= wrong_type_argument (Qarrayp
, array
);
2005 CHECK_IMPURE (array
);
2007 if (VECTORP (array
))
2009 if (idxval
< 0 || idxval
>= XVECTOR (array
)->size
)
2010 args_out_of_range (array
, idx
);
2011 XVECTOR (array
)->contents
[idxval
] = newelt
;
2013 else if (BOOL_VECTOR_P (array
))
2017 if (idxval
< 0 || idxval
>= XBOOL_VECTOR (array
)->size
)
2018 args_out_of_range (array
, idx
);
2020 val
= (unsigned char) XBOOL_VECTOR (array
)->data
[idxval
/ BOOL_VECTOR_BITS_PER_CHAR
];
2022 if (! NILP (newelt
))
2023 val
|= 1 << (idxval
% BOOL_VECTOR_BITS_PER_CHAR
);
2025 val
&= ~(1 << (idxval
% BOOL_VECTOR_BITS_PER_CHAR
));
2026 XBOOL_VECTOR (array
)->data
[idxval
/ BOOL_VECTOR_BITS_PER_CHAR
] = val
;
2028 else if (CHAR_TABLE_P (array
))
2030 CHECK_CHARACTER (idx
);
2031 CHAR_TABLE_SET (array
, idxval
, newelt
);
2033 else if (STRING_MULTIBYTE (array
))
2035 int idxval_byte
, prev_bytes
, new_bytes
, nbytes
;
2036 unsigned char workbuf
[MAX_MULTIBYTE_LENGTH
], *p0
= workbuf
, *p1
;
2038 if (idxval
< 0 || idxval
>= SCHARS (array
))
2039 args_out_of_range (array
, idx
);
2040 CHECK_CHARACTER (newelt
);
2042 nbytes
= SBYTES (array
);
2044 idxval_byte
= string_char_to_byte (array
, idxval
);
2045 p1
= SDATA (array
) + idxval_byte
;
2046 PARSE_MULTIBYTE_SEQ (p1
, nbytes
- idxval_byte
, prev_bytes
);
2047 new_bytes
= CHAR_STRING (XINT (newelt
), p0
);
2048 if (prev_bytes
!= new_bytes
)
2050 /* We must relocate the string data. */
2051 int nchars
= SCHARS (array
);
2055 SAFE_ALLOCA (str
, unsigned char *, nbytes
);
2056 bcopy (SDATA (array
), str
, nbytes
);
2057 allocate_string_data (XSTRING (array
), nchars
,
2058 nbytes
+ new_bytes
- prev_bytes
);
2059 bcopy (str
, SDATA (array
), idxval_byte
);
2060 p1
= SDATA (array
) + idxval_byte
;
2061 bcopy (str
+ idxval_byte
+ prev_bytes
, p1
+ new_bytes
,
2062 nbytes
- (idxval_byte
+ prev_bytes
));
2064 clear_string_char_byte_cache ();
2071 if (idxval
< 0 || idxval
>= SCHARS (array
))
2072 args_out_of_range (array
, idx
);
2073 CHECK_NUMBER (newelt
);
2075 if (XINT (newelt
) < 0 || ASCII_CHAR_P (XINT (newelt
))
2076 || CHAR_BYTE8_P (XINT (newelt
)))
2077 SSET (array
, idxval
, XINT (newelt
));
2080 /* We must relocate the string data while converting it to
2082 int idxval_byte
, prev_bytes
, new_bytes
;
2083 unsigned char workbuf
[MAX_MULTIBYTE_LENGTH
], *p0
= workbuf
, *p1
;
2084 unsigned char *origstr
= SDATA (array
), *str
;
2088 nchars
= SCHARS (array
);
2089 nbytes
= idxval_byte
= count_size_as_multibyte (origstr
, idxval
);
2090 nbytes
+= count_size_as_multibyte (origstr
+ idxval
,
2092 SAFE_ALLOCA (str
, unsigned char *, nbytes
);
2093 copy_text (SDATA (array
), str
, nchars
, 0, 1);
2094 PARSE_MULTIBYTE_SEQ (str
+ idxval_byte
, nbytes
- idxval_byte
,
2096 new_bytes
= CHAR_STRING (XINT (newelt
), p0
);
2097 allocate_string_data (XSTRING (array
), nchars
,
2098 nbytes
+ new_bytes
- prev_bytes
);
2099 bcopy (str
, SDATA (array
), idxval_byte
);
2100 p1
= SDATA (array
) + idxval_byte
;
2103 bcopy (str
+ idxval_byte
+ prev_bytes
, p1
,
2104 nbytes
- (idxval_byte
+ prev_bytes
));
2106 clear_string_char_byte_cache ();
2113 /* Arithmetic functions */
2115 enum comparison
{ equal
, notequal
, less
, grtr
, less_or_equal
, grtr_or_equal
};
2118 arithcompare (num1
, num2
, comparison
)
2119 Lisp_Object num1
, num2
;
2120 enum comparison comparison
;
2122 double f1
= 0, f2
= 0;
2125 CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (num1
);
2126 CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (num2
);
2128 if (FLOATP (num1
) || FLOATP (num2
))
2131 f1
= (FLOATP (num1
)) ? XFLOAT_DATA (num1
) : XINT (num1
);
2132 f2
= (FLOATP (num2
)) ? XFLOAT_DATA (num2
) : XINT (num2
);
2138 if (floatp
? f1
== f2
: XINT (num1
) == XINT (num2
))
2143 if (floatp
? f1
!= f2
: XINT (num1
) != XINT (num2
))
2148 if (floatp
? f1
< f2
: XINT (num1
) < XINT (num2
))
2153 if (floatp
? f1
<= f2
: XINT (num1
) <= XINT (num2
))
2158 if (floatp
? f1
> f2
: XINT (num1
) > XINT (num2
))
2163 if (floatp
? f1
>= f2
: XINT (num1
) >= XINT (num2
))
2172 DEFUN ("=", Feqlsign
, Seqlsign
, 2, 2, 0,
2173 doc
: /* Return t if two args, both numbers or markers, are equal. */)
2175 register Lisp_Object num1
, num2
;
2177 return arithcompare (num1
, num2
, equal
);
2180 DEFUN ("<", Flss
, Slss
, 2, 2, 0,
2181 doc
: /* Return t if first arg is less than second arg. Both must be numbers or markers. */)
2183 register Lisp_Object num1
, num2
;
2185 return arithcompare (num1
, num2
, less
);
2188 DEFUN (">", Fgtr
, Sgtr
, 2, 2, 0,
2189 doc
: /* Return t if first arg is greater than second arg. Both must be numbers or markers. */)
2191 register Lisp_Object num1
, num2
;
2193 return arithcompare (num1
, num2
, grtr
);
2196 DEFUN ("<=", Fleq
, Sleq
, 2, 2, 0,
2197 doc
: /* Return t if first arg is less than or equal to second arg.
2198 Both must be numbers or markers. */)
2200 register Lisp_Object num1
, num2
;
2202 return arithcompare (num1
, num2
, less_or_equal
);
2205 DEFUN (">=", Fgeq
, Sgeq
, 2, 2, 0,
2206 doc
: /* Return t if first arg is greater than or equal to second arg.
2207 Both must be numbers or markers. */)
2209 register Lisp_Object num1
, num2
;
2211 return arithcompare (num1
, num2
, grtr_or_equal
);
2214 DEFUN ("/=", Fneq
, Sneq
, 2, 2, 0,
2215 doc
: /* Return t if first arg is not equal to second arg. Both must be numbers or markers. */)
2217 register Lisp_Object num1
, num2
;
2219 return arithcompare (num1
, num2
, notequal
);
2222 DEFUN ("zerop", Fzerop
, Szerop
, 1, 1, 0,
2223 doc
: /* Return t if NUMBER is zero. */)
2225 register Lisp_Object number
;
2227 CHECK_NUMBER_OR_FLOAT (number
);
2229 if (FLOATP (number
))
2231 if (XFLOAT_DATA (number
) == 0.0)
2241 /* Convert between long values and pairs of Lisp integers. */
2247 unsigned long top
= i
>> 16;
2248 unsigned int bot
= i
& 0xFFFF;
2250 return make_number (bot
);
2251 if (top
== (unsigned long)-1 >> 16)
2252 return Fcons (make_number (-1), make_number (bot
));
2253 return Fcons (make_number (top
), make_number (bot
));
2260 Lisp_Object top
, bot
;
2267 return ((XINT (top
) << 16) | XINT (bot
));
2270 DEFUN ("number-to-string", Fnumber_to_string
, Snumber_to_string
, 1, 1, 0,
2271 doc
: /* Return the decimal representation of NUMBER as a string.
2272 Uses a minus sign if negative.
2273 NUMBER may be an integer or a floating point number. */)
2277 char buffer
[VALBITS
];
2279 CHECK_NUMBER_OR_FLOAT (number
);
2281 if (FLOATP (number
))
2283 char pigbuf
[350]; /* see comments in float_to_string */
2285 float_to_string (pigbuf
, XFLOAT_DATA (number
));
2286 return build_string (pigbuf
);
2289 if (sizeof (int) == sizeof (EMACS_INT
))
2290 sprintf (buffer
, "%d", XINT (number
));
2291 else if (sizeof (long) == sizeof (EMACS_INT
))
2292 sprintf (buffer
, "%ld", (long) XINT (number
));
2295 return build_string (buffer
);
2299 digit_to_number (character
, base
)
2300 int character
, base
;
2304 if (character
>= '0' && character
<= '9')
2305 digit
= character
- '0';
2306 else if (character
>= 'a' && character
<= 'z')
2307 digit
= character
- 'a' + 10;
2308 else if (character
>= 'A' && character
<= 'Z')
2309 digit
= character
- 'A' + 10;
2319 DEFUN ("string-to-number", Fstring_to_number
, Sstring_to_number
, 1, 2, 0,
2320 doc
: /* Parse STRING as a decimal number and return the number.
2321 This parses both integers and floating point numbers.
2322 It ignores leading spaces and tabs.
2324 If BASE, interpret STRING as a number in that base. If BASE isn't
2325 present, base 10 is used. BASE must be between 2 and 16 (inclusive).
2326 If the base used is not 10, floating point is not recognized. */)
2328 register Lisp_Object string
, base
;
2330 register unsigned char *p
;
2335 CHECK_STRING (string
);
2341 CHECK_NUMBER (base
);
2343 if (b
< 2 || b
> 16)
2344 Fsignal (Qargs_out_of_range
, Fcons (base
, Qnil
));
2347 /* Skip any whitespace at the front of the number. Some versions of
2348 atoi do this anyway, so we might as well make Emacs lisp consistent. */
2350 while (*p
== ' ' || *p
== '\t')
2361 if (isfloat_string (p
) && b
== 10)
2362 val
= make_float (sign
* atof (p
));
2369 int digit
= digit_to_number (*p
++, b
);
2375 val
= make_fixnum_or_float (sign
* v
);
2395 static Lisp_Object float_arith_driver
P_ ((double, int, enum arithop
,
2396 int, Lisp_Object
*));
2397 extern Lisp_Object
fmod_float ();
2400 arith_driver (code
, nargs
, args
)
2403 register Lisp_Object
*args
;
2405 register Lisp_Object val
;
2406 register int argnum
;
2407 register EMACS_INT accum
= 0;
2408 register EMACS_INT next
;
2410 switch (SWITCH_ENUM_CAST (code
))
2428 for (argnum
= 0; argnum
< nargs
; argnum
++)
2430 /* Using args[argnum] as argument to CHECK_NUMBER_... */
2432 CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (val
);
2435 return float_arith_driver ((double) accum
, argnum
, code
,
2438 next
= XINT (args
[argnum
]);
2439 switch (SWITCH_ENUM_CAST (code
))
2445 accum
= argnum
? accum
- next
: nargs
== 1 ? - next
: next
;
2456 Fsignal (Qarith_error
, Qnil
);
2470 if (!argnum
|| next
> accum
)
2474 if (!argnum
|| next
< accum
)
2480 XSETINT (val
, accum
);
2485 #define isnan(x) ((x) != (x))
2488 float_arith_driver (accum
, argnum
, code
, nargs
, args
)
2490 register int argnum
;
2493 register Lisp_Object
*args
;
2495 register Lisp_Object val
;
2498 for (; argnum
< nargs
; argnum
++)
2500 val
= args
[argnum
]; /* using args[argnum] as argument to CHECK_NUMBER_... */
2501 CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (val
);
2505 next
= XFLOAT_DATA (val
);
2509 args
[argnum
] = val
; /* runs into a compiler bug. */
2510 next
= XINT (args
[argnum
]);
2512 switch (SWITCH_ENUM_CAST (code
))
2518 accum
= argnum
? accum
- next
: nargs
== 1 ? - next
: next
;
2528 if (! IEEE_FLOATING_POINT
&& next
== 0)
2529 Fsignal (Qarith_error
, Qnil
);
2536 return wrong_type_argument (Qinteger_or_marker_p
, val
);
2538 if (!argnum
|| isnan (next
) || next
> accum
)
2542 if (!argnum
|| isnan (next
) || next
< accum
)
2548 return make_float (accum
);
2552 DEFUN ("+", Fplus
, Splus
, 0, MANY
, 0,
2553 doc
: /* Return sum of any number of arguments, which are numbers or markers.
2554 usage: (+ &rest NUMBERS-OR-MARKERS) */)
2559 return arith_driver (Aadd
, nargs
, args
);
2562 DEFUN ("-", Fminus
, Sminus
, 0, MANY
, 0,
2563 doc
: /* Negate number or subtract numbers or markers and return the result.
2564 With one arg, negates it. With more than one arg,
2565 subtracts all but the first from the first.
2566 usage: (- &optional NUMBER-OR-MARKER &rest MORE-NUMBERS-OR-MARKERS) */)
2571 return arith_driver (Asub
, nargs
, args
);
2574 DEFUN ("*", Ftimes
, Stimes
, 0, MANY
, 0,
2575 doc
: /* Return product of any number of arguments, which are numbers or markers.
2576 usage: (* &rest NUMBERS-OR-MARKERS) */)
2581 return arith_driver (Amult
, nargs
, args
);
2584 DEFUN ("/", Fquo
, Squo
, 2, MANY
, 0,
2585 doc
: /* Return first argument divided by all the remaining arguments.
2586 The arguments must be numbers or markers.
2587 usage: (/ DIVIDEND DIVISOR &rest DIVISORS) */)
2593 for (argnum
= 2; argnum
< nargs
; argnum
++)
2594 if (FLOATP (args
[argnum
]))
2595 return float_arith_driver (0, 0, Adiv
, nargs
, args
);
2596 return arith_driver (Adiv
, nargs
, args
);
2599 DEFUN ("%", Frem
, Srem
, 2, 2, 0,
2600 doc
: /* Return remainder of X divided by Y.
2601 Both must be integers or markers. */)
2603 register Lisp_Object x
, y
;
2607 CHECK_NUMBER_COERCE_MARKER (x
);
2608 CHECK_NUMBER_COERCE_MARKER (y
);
2610 if (XFASTINT (y
) == 0)
2611 Fsignal (Qarith_error
, Qnil
);
2613 XSETINT (val
, XINT (x
) % XINT (y
));
2627 /* If the magnitude of the result exceeds that of the divisor, or
2628 the sign of the result does not agree with that of the dividend,
2629 iterate with the reduced value. This does not yield a
2630 particularly accurate result, but at least it will be in the
2631 range promised by fmod. */
2633 r
-= f2
* floor (r
/ f2
);
2634 while (f2
<= (r
< 0 ? -r
: r
) || ((r
< 0) != (f1
< 0) && ! isnan (r
)));
2638 #endif /* ! HAVE_FMOD */
2640 DEFUN ("mod", Fmod
, Smod
, 2, 2, 0,
2641 doc
: /* Return X modulo Y.
2642 The result falls between zero (inclusive) and Y (exclusive).
2643 Both X and Y must be numbers or markers. */)
2645 register Lisp_Object x
, y
;
2650 CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (x
);
2651 CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (y
);
2653 if (FLOATP (x
) || FLOATP (y
))
2654 return fmod_float (x
, y
);
2660 Fsignal (Qarith_error
, Qnil
);
2664 /* If the "remainder" comes out with the wrong sign, fix it. */
2665 if (i2
< 0 ? i1
> 0 : i1
< 0)
2672 DEFUN ("max", Fmax
, Smax
, 1, MANY
, 0,
2673 doc
: /* Return largest of all the arguments (which must be numbers or markers).
2674 The value is always a number; markers are converted to numbers.
2675 usage: (max NUMBER-OR-MARKER &rest NUMBERS-OR-MARKERS) */)
2680 return arith_driver (Amax
, nargs
, args
);
2683 DEFUN ("min", Fmin
, Smin
, 1, MANY
, 0,
2684 doc
: /* Return smallest of all the arguments (which must be numbers or markers).
2685 The value is always a number; markers are converted to numbers.
2686 usage: (min NUMBER-OR-MARKER &rest NUMBERS-OR-MARKERS) */)
2691 return arith_driver (Amin
, nargs
, args
);
2694 DEFUN ("logand", Flogand
, Slogand
, 0, MANY
, 0,
2695 doc
: /* Return bitwise-and of all the arguments.
2696 Arguments may be integers, or markers converted to integers.
2697 usage: (logand &rest INTS-OR-MARKERS) */)
2702 return arith_driver (Alogand
, nargs
, args
);
2705 DEFUN ("logior", Flogior
, Slogior
, 0, MANY
, 0,
2706 doc
: /* Return bitwise-or of all the arguments.
2707 Arguments may be integers, or markers converted to integers.
2708 usage: (logior &rest INTS-OR-MARKERS) */)
2713 return arith_driver (Alogior
, nargs
, args
);
2716 DEFUN ("logxor", Flogxor
, Slogxor
, 0, MANY
, 0,
2717 doc
: /* Return bitwise-exclusive-or of all the arguments.
2718 Arguments may be integers, or markers converted to integers.
2719 usage: (logxor &rest INTS-OR-MARKERS) */)
2724 return arith_driver (Alogxor
, nargs
, args
);
2727 DEFUN ("ash", Fash
, Sash
, 2, 2, 0,
2728 doc
: /* Return VALUE with its bits shifted left by COUNT.
2729 If COUNT is negative, shifting is actually to the right.
2730 In this case, the sign bit is duplicated. */)
2732 register Lisp_Object value
, count
;
2734 register Lisp_Object val
;
2736 CHECK_NUMBER (value
);
2737 CHECK_NUMBER (count
);
2739 if (XINT (count
) >= BITS_PER_EMACS_INT
)
2741 else if (XINT (count
) > 0)
2742 XSETINT (val
, XINT (value
) << XFASTINT (count
));
2743 else if (XINT (count
) <= -BITS_PER_EMACS_INT
)
2744 XSETINT (val
, XINT (value
) < 0 ? -1 : 0);
2746 XSETINT (val
, XINT (value
) >> -XINT (count
));
2750 DEFUN ("lsh", Flsh
, Slsh
, 2, 2, 0,
2751 doc
: /* Return VALUE with its bits shifted left by COUNT.
2752 If COUNT is negative, shifting is actually to the right.
2753 In this case, zeros are shifted in on the left. */)
2755 register Lisp_Object value
, count
;
2757 register Lisp_Object val
;
2759 CHECK_NUMBER (value
);
2760 CHECK_NUMBER (count
);
2762 if (XINT (count
) >= BITS_PER_EMACS_INT
)
2764 else if (XINT (count
) > 0)
2765 XSETINT (val
, (EMACS_UINT
) XUINT (value
) << XFASTINT (count
));
2766 else if (XINT (count
) <= -BITS_PER_EMACS_INT
)
2769 XSETINT (val
, (EMACS_UINT
) XUINT (value
) >> -XINT (count
));
2773 DEFUN ("1+", Fadd1
, Sadd1
, 1, 1, 0,
2774 doc
: /* Return NUMBER plus one. NUMBER may be a number or a marker.
2775 Markers are converted to integers. */)
2777 register Lisp_Object number
;
2779 CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (number
);
2781 if (FLOATP (number
))
2782 return (make_float (1.0 + XFLOAT_DATA (number
)));
2784 XSETINT (number
, XINT (number
) + 1);
2788 DEFUN ("1-", Fsub1
, Ssub1
, 1, 1, 0,
2789 doc
: /* Return NUMBER minus one. NUMBER may be a number or a marker.
2790 Markers are converted to integers. */)
2792 register Lisp_Object number
;
2794 CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (number
);
2796 if (FLOATP (number
))
2797 return (make_float (-1.0 + XFLOAT_DATA (number
)));
2799 XSETINT (number
, XINT (number
) - 1);
2803 DEFUN ("lognot", Flognot
, Slognot
, 1, 1, 0,
2804 doc
: /* Return the bitwise complement of NUMBER. NUMBER must be an integer. */)
2806 register Lisp_Object number
;
2808 CHECK_NUMBER (number
);
2809 XSETINT (number
, ~XINT (number
));
2813 DEFUN ("byteorder", Fbyteorder
, Sbyteorder
, 0, 0, 0,
2814 doc
: /* Return the byteorder for the machine.
2815 Returns 66 (ASCII uppercase B) for big endian machines or 108 (ASCII
2816 lowercase l) for small endian machines. */)
2819 unsigned i
= 0x04030201;
2820 int order
= *(char *)&i
== 1 ? 108 : 66;
2822 return make_number (order
);
2830 Lisp_Object error_tail
, arith_tail
;
2832 Qquote
= intern ("quote");
2833 Qlambda
= intern ("lambda");
2834 Qsubr
= intern ("subr");
2835 Qerror_conditions
= intern ("error-conditions");
2836 Qerror_message
= intern ("error-message");
2837 Qtop_level
= intern ("top-level");
2839 Qerror
= intern ("error");
2840 Qquit
= intern ("quit");
2841 Qwrong_type_argument
= intern ("wrong-type-argument");
2842 Qargs_out_of_range
= intern ("args-out-of-range");
2843 Qvoid_function
= intern ("void-function");
2844 Qcyclic_function_indirection
= intern ("cyclic-function-indirection");
2845 Qcyclic_variable_indirection
= intern ("cyclic-variable-indirection");
2846 Qvoid_variable
= intern ("void-variable");
2847 Qsetting_constant
= intern ("setting-constant");
2848 Qinvalid_read_syntax
= intern ("invalid-read-syntax");
2850 Qinvalid_function
= intern ("invalid-function");
2851 Qwrong_number_of_arguments
= intern ("wrong-number-of-arguments");
2852 Qno_catch
= intern ("no-catch");
2853 Qend_of_file
= intern ("end-of-file");
2854 Qarith_error
= intern ("arith-error");
2855 Qbeginning_of_buffer
= intern ("beginning-of-buffer");
2856 Qend_of_buffer
= intern ("end-of-buffer");
2857 Qbuffer_read_only
= intern ("buffer-read-only");
2858 Qtext_read_only
= intern ("text-read-only");
2859 Qmark_inactive
= intern ("mark-inactive");
2861 Qlistp
= intern ("listp");
2862 Qconsp
= intern ("consp");
2863 Qsymbolp
= intern ("symbolp");
2864 Qkeywordp
= intern ("keywordp");
2865 Qintegerp
= intern ("integerp");
2866 Qnatnump
= intern ("natnump");
2867 Qwholenump
= intern ("wholenump");
2868 Qstringp
= intern ("stringp");
2869 Qarrayp
= intern ("arrayp");
2870 Qsequencep
= intern ("sequencep");
2871 Qbufferp
= intern ("bufferp");
2872 Qvectorp
= intern ("vectorp");
2873 Qchar_or_string_p
= intern ("char-or-string-p");
2874 Qmarkerp
= intern ("markerp");
2875 Qbuffer_or_string_p
= intern ("buffer-or-string-p");
2876 Qinteger_or_marker_p
= intern ("integer-or-marker-p");
2877 Qboundp
= intern ("boundp");
2878 Qfboundp
= intern ("fboundp");
2880 Qfloatp
= intern ("floatp");
2881 Qnumberp
= intern ("numberp");
2882 Qnumber_or_marker_p
= intern ("number-or-marker-p");
2884 Qchar_table_p
= intern ("char-table-p");
2885 Qvector_or_char_table_p
= intern ("vector-or-char-table-p");
2887 Qsubrp
= intern ("subrp");
2888 Qunevalled
= intern ("unevalled");
2889 Qmany
= intern ("many");
2891 Qcdr
= intern ("cdr");
2893 /* Handle automatic advice activation */
2894 Qad_advice_info
= intern ("ad-advice-info");
2895 Qad_activate_internal
= intern ("ad-activate-internal");
2897 error_tail
= Fcons (Qerror
, Qnil
);
2899 /* ERROR is used as a signaler for random errors for which nothing else is right */
2901 Fput (Qerror
, Qerror_conditions
,
2903 Fput (Qerror
, Qerror_message
,
2904 build_string ("error"));
2906 Fput (Qquit
, Qerror_conditions
,
2907 Fcons (Qquit
, Qnil
));
2908 Fput (Qquit
, Qerror_message
,
2909 build_string ("Quit"));
2911 Fput (Qwrong_type_argument
, Qerror_conditions
,
2912 Fcons (Qwrong_type_argument
, error_tail
));
2913 Fput (Qwrong_type_argument
, Qerror_message
,
2914 build_string ("Wrong type argument"));
2916 Fput (Qargs_out_of_range
, Qerror_conditions
,
2917 Fcons (Qargs_out_of_range
, error_tail
));
2918 Fput (Qargs_out_of_range
, Qerror_message
,
2919 build_string ("Args out of range"));
2921 Fput (Qvoid_function
, Qerror_conditions
,
2922 Fcons (Qvoid_function
, error_tail
));
2923 Fput (Qvoid_function
, Qerror_message
,
2924 build_string ("Symbol's function definition is void"));
2926 Fput (Qcyclic_function_indirection
, Qerror_conditions
,
2927 Fcons (Qcyclic_function_indirection
, error_tail
));
2928 Fput (Qcyclic_function_indirection
, Qerror_message
,
2929 build_string ("Symbol's chain of function indirections contains a loop"));
2931 Fput (Qcyclic_variable_indirection
, Qerror_conditions
,
2932 Fcons (Qcyclic_variable_indirection
, error_tail
));
2933 Fput (Qcyclic_variable_indirection
, Qerror_message
,
2934 build_string ("Symbol's chain of variable indirections contains a loop"));
2936 Qcircular_list
= intern ("circular-list");
2937 staticpro (&Qcircular_list
);
2938 Fput (Qcircular_list
, Qerror_conditions
,
2939 Fcons (Qcircular_list
, error_tail
));
2940 Fput (Qcircular_list
, Qerror_message
,
2941 build_string ("List contains a loop"));
2943 Fput (Qvoid_variable
, Qerror_conditions
,
2944 Fcons (Qvoid_variable
, error_tail
));
2945 Fput (Qvoid_variable
, Qerror_message
,
2946 build_string ("Symbol's value as variable is void"));
2948 Fput (Qsetting_constant
, Qerror_conditions
,
2949 Fcons (Qsetting_constant
, error_tail
));
2950 Fput (Qsetting_constant
, Qerror_message
,
2951 build_string ("Attempt to set a constant symbol"));
2953 Fput (Qinvalid_read_syntax
, Qerror_conditions
,
2954 Fcons (Qinvalid_read_syntax
, error_tail
));
2955 Fput (Qinvalid_read_syntax
, Qerror_message
,
2956 build_string ("Invalid read syntax"));
2958 Fput (Qinvalid_function
, Qerror_conditions
,
2959 Fcons (Qinvalid_function
, error_tail
));
2960 Fput (Qinvalid_function
, Qerror_message
,
2961 build_string ("Invalid function"));
2963 Fput (Qwrong_number_of_arguments
, Qerror_conditions
,
2964 Fcons (Qwrong_number_of_arguments
, error_tail
));
2965 Fput (Qwrong_number_of_arguments
, Qerror_message
,
2966 build_string ("Wrong number of arguments"));
2968 Fput (Qno_catch
, Qerror_conditions
,
2969 Fcons (Qno_catch
, error_tail
));
2970 Fput (Qno_catch
, Qerror_message
,
2971 build_string ("No catch for tag"));
2973 Fput (Qend_of_file
, Qerror_conditions
,
2974 Fcons (Qend_of_file
, error_tail
));
2975 Fput (Qend_of_file
, Qerror_message
,
2976 build_string ("End of file during parsing"));
2978 arith_tail
= Fcons (Qarith_error
, error_tail
);
2979 Fput (Qarith_error
, Qerror_conditions
,
2981 Fput (Qarith_error
, Qerror_message
,
2982 build_string ("Arithmetic error"));
2984 Fput (Qbeginning_of_buffer
, Qerror_conditions
,
2985 Fcons (Qbeginning_of_buffer
, error_tail
));
2986 Fput (Qbeginning_of_buffer
, Qerror_message
,
2987 build_string ("Beginning of buffer"));
2989 Fput (Qend_of_buffer
, Qerror_conditions
,
2990 Fcons (Qend_of_buffer
, error_tail
));
2991 Fput (Qend_of_buffer
, Qerror_message
,
2992 build_string ("End of buffer"));
2994 Fput (Qbuffer_read_only
, Qerror_conditions
,
2995 Fcons (Qbuffer_read_only
, error_tail
));
2996 Fput (Qbuffer_read_only
, Qerror_message
,
2997 build_string ("Buffer is read-only"));
2999 Fput (Qtext_read_only
, Qerror_conditions
,
3000 Fcons (Qtext_read_only
, error_tail
));
3001 Fput (Qtext_read_only
, Qerror_message
,
3002 build_string ("Text is read-only"));
3004 Qrange_error
= intern ("range-error");
3005 Qdomain_error
= intern ("domain-error");
3006 Qsingularity_error
= intern ("singularity-error");
3007 Qoverflow_error
= intern ("overflow-error");
3008 Qunderflow_error
= intern ("underflow-error");
3010 Fput (Qdomain_error
, Qerror_conditions
,
3011 Fcons (Qdomain_error
, arith_tail
));
3012 Fput (Qdomain_error
, Qerror_message
,
3013 build_string ("Arithmetic domain error"));
3015 Fput (Qrange_error
, Qerror_conditions
,
3016 Fcons (Qrange_error
, arith_tail
));
3017 Fput (Qrange_error
, Qerror_message
,
3018 build_string ("Arithmetic range error"));
3020 Fput (Qsingularity_error
, Qerror_conditions
,
3021 Fcons (Qsingularity_error
, Fcons (Qdomain_error
, arith_tail
)));
3022 Fput (Qsingularity_error
, Qerror_message
,
3023 build_string ("Arithmetic singularity error"));
3025 Fput (Qoverflow_error
, Qerror_conditions
,
3026 Fcons (Qoverflow_error
, Fcons (Qdomain_error
, arith_tail
)));
3027 Fput (Qoverflow_error
, Qerror_message
,
3028 build_string ("Arithmetic overflow error"));
3030 Fput (Qunderflow_error
, Qerror_conditions
,
3031 Fcons (Qunderflow_error
, Fcons (Qdomain_error
, arith_tail
)));
3032 Fput (Qunderflow_error
, Qerror_message
,
3033 build_string ("Arithmetic underflow error"));
3035 staticpro (&Qrange_error
);
3036 staticpro (&Qdomain_error
);
3037 staticpro (&Qsingularity_error
);
3038 staticpro (&Qoverflow_error
);
3039 staticpro (&Qunderflow_error
);
3043 staticpro (&Qquote
);
3044 staticpro (&Qlambda
);
3046 staticpro (&Qunbound
);
3047 staticpro (&Qerror_conditions
);
3048 staticpro (&Qerror_message
);
3049 staticpro (&Qtop_level
);
3051 staticpro (&Qerror
);
3053 staticpro (&Qwrong_type_argument
);
3054 staticpro (&Qargs_out_of_range
);
3055 staticpro (&Qvoid_function
);
3056 staticpro (&Qcyclic_function_indirection
);
3057 staticpro (&Qvoid_variable
);
3058 staticpro (&Qsetting_constant
);
3059 staticpro (&Qinvalid_read_syntax
);
3060 staticpro (&Qwrong_number_of_arguments
);
3061 staticpro (&Qinvalid_function
);
3062 staticpro (&Qno_catch
);
3063 staticpro (&Qend_of_file
);
3064 staticpro (&Qarith_error
);
3065 staticpro (&Qbeginning_of_buffer
);
3066 staticpro (&Qend_of_buffer
);
3067 staticpro (&Qbuffer_read_only
);
3068 staticpro (&Qtext_read_only
);
3069 staticpro (&Qmark_inactive
);
3071 staticpro (&Qlistp
);
3072 staticpro (&Qconsp
);
3073 staticpro (&Qsymbolp
);
3074 staticpro (&Qkeywordp
);
3075 staticpro (&Qintegerp
);
3076 staticpro (&Qnatnump
);
3077 staticpro (&Qwholenump
);
3078 staticpro (&Qstringp
);
3079 staticpro (&Qarrayp
);
3080 staticpro (&Qsequencep
);
3081 staticpro (&Qbufferp
);
3082 staticpro (&Qvectorp
);
3083 staticpro (&Qchar_or_string_p
);
3084 staticpro (&Qmarkerp
);
3085 staticpro (&Qbuffer_or_string_p
);
3086 staticpro (&Qinteger_or_marker_p
);
3087 staticpro (&Qfloatp
);
3088 staticpro (&Qnumberp
);
3089 staticpro (&Qnumber_or_marker_p
);
3090 staticpro (&Qchar_table_p
);
3091 staticpro (&Qvector_or_char_table_p
);
3092 staticpro (&Qsubrp
);
3094 staticpro (&Qunevalled
);
3096 staticpro (&Qboundp
);
3097 staticpro (&Qfboundp
);
3099 staticpro (&Qad_advice_info
);
3100 staticpro (&Qad_activate_internal
);
3102 /* Types that type-of returns. */
3103 Qinteger
= intern ("integer");
3104 Qsymbol
= intern ("symbol");
3105 Qstring
= intern ("string");
3106 Qcons
= intern ("cons");
3107 Qmarker
= intern ("marker");
3108 Qoverlay
= intern ("overlay");
3109 Qfloat
= intern ("float");
3110 Qwindow_configuration
= intern ("window-configuration");
3111 Qprocess
= intern ("process");
3112 Qwindow
= intern ("window");
3113 /* Qsubr = intern ("subr"); */
3114 Qcompiled_function
= intern ("compiled-function");
3115 Qbuffer
= intern ("buffer");
3116 Qframe
= intern ("frame");
3117 Qvector
= intern ("vector");
3118 Qchar_table
= intern ("char-table");
3119 Qbool_vector
= intern ("bool-vector");
3120 Qhash_table
= intern ("hash-table");
3122 staticpro (&Qinteger
);
3123 staticpro (&Qsymbol
);
3124 staticpro (&Qstring
);
3126 staticpro (&Qmarker
);
3127 staticpro (&Qoverlay
);
3128 staticpro (&Qfloat
);
3129 staticpro (&Qwindow_configuration
);
3130 staticpro (&Qprocess
);
3131 staticpro (&Qwindow
);
3132 /* staticpro (&Qsubr); */
3133 staticpro (&Qcompiled_function
);
3134 staticpro (&Qbuffer
);
3135 staticpro (&Qframe
);
3136 staticpro (&Qvector
);
3137 staticpro (&Qchar_table
);
3138 staticpro (&Qbool_vector
);
3139 staticpro (&Qhash_table
);
3141 defsubr (&Sindirect_variable
);
3142 defsubr (&Sinteractive_form
);
3145 defsubr (&Stype_of
);
3150 defsubr (&Sintegerp
);
3151 defsubr (&Sinteger_or_marker_p
);
3152 defsubr (&Snumberp
);
3153 defsubr (&Snumber_or_marker_p
);
3155 defsubr (&Snatnump
);
3156 defsubr (&Ssymbolp
);
3157 defsubr (&Skeywordp
);
3158 defsubr (&Sstringp
);
3159 defsubr (&Smultibyte_string_p
);
3160 defsubr (&Svectorp
);
3161 defsubr (&Schar_table_p
);
3162 defsubr (&Svector_or_char_table_p
);
3163 defsubr (&Sbool_vector_p
);
3165 defsubr (&Ssequencep
);
3166 defsubr (&Sbufferp
);
3167 defsubr (&Smarkerp
);
3169 defsubr (&Sbyte_code_function_p
);
3170 defsubr (&Schar_or_string_p
);
3173 defsubr (&Scar_safe
);
3174 defsubr (&Scdr_safe
);
3177 defsubr (&Ssymbol_function
);
3178 defsubr (&Sindirect_function
);
3179 defsubr (&Ssymbol_plist
);
3180 defsubr (&Ssymbol_name
);
3181 defsubr (&Smakunbound
);
3182 defsubr (&Sfmakunbound
);
3184 defsubr (&Sfboundp
);
3186 defsubr (&Sdefalias
);
3187 defsubr (&Ssetplist
);
3188 defsubr (&Ssymbol_value
);
3190 defsubr (&Sdefault_boundp
);
3191 defsubr (&Sdefault_value
);
3192 defsubr (&Sset_default
);
3193 defsubr (&Ssetq_default
);
3194 defsubr (&Smake_variable_buffer_local
);
3195 defsubr (&Smake_local_variable
);
3196 defsubr (&Skill_local_variable
);
3197 defsubr (&Smake_variable_frame_local
);
3198 defsubr (&Slocal_variable_p
);
3199 defsubr (&Slocal_variable_if_set_p
);
3200 defsubr (&Svariable_binding_locus
);
3203 defsubr (&Snumber_to_string
);
3204 defsubr (&Sstring_to_number
);
3205 defsubr (&Seqlsign
);
3228 defsubr (&Sbyteorder
);
3229 defsubr (&Ssubr_arity
);
3230 defsubr (&Ssubr_name
);
3232 XSYMBOL (Qwholenump
)->function
= XSYMBOL (Qnatnump
)->function
;
3234 DEFVAR_LISP ("most-positive-fixnum", &Vmost_positive_fixnum
,
3235 doc
: /* The largest value that is representable in a Lisp integer. */);
3236 Vmost_positive_fixnum
= make_number (MOST_POSITIVE_FIXNUM
);
3238 DEFVAR_LISP ("most-negative-fixnum", &Vmost_negative_fixnum
,
3239 doc
: /* The smallest value that is representable in a Lisp integer. */);
3240 Vmost_negative_fixnum
= make_number (MOST_NEGATIVE_FIXNUM
);
3247 #if defined(USG) && !defined(POSIX_SIGNALS)
3248 /* USG systems forget handlers when they are used;
3249 must reestablish each time */
3250 signal (signo
, arith_error
);
3253 /* VMS systems are like USG. */
3254 signal (signo
, arith_error
);
3258 #else /* not BSD4_1 */
3259 sigsetmask (SIGEMPTYMASK
);
3260 #endif /* not BSD4_1 */
3262 Fsignal (Qarith_error
, Qnil
);
3268 /* Don't do this if just dumping out.
3269 We don't want to call `signal' in this case
3270 so that we don't have trouble with dumping
3271 signal-delivering routines in an inconsistent state. */
3275 #endif /* CANNOT_DUMP */
3276 signal (SIGFPE
, arith_error
);
3279 signal (SIGEMT
, arith_error
);
3283 /* arch-tag: 25879798-b84d-479a-9c89-7d148e2109f7
3284 (do not change this comment) */