2 @c This is part of the GNU Emacs Lisp Reference Manual.
3 @c Copyright (C) 1990, 1991, 1992, 1993, 1999, 2002, 2003, 2004,
4 @c 2005, 2006 Free Software Foundation, Inc.
5 @c See the file elisp.texi for copying conditions.
6 @setfilename ../info/errors
7 @node Standard Errors, Standard Buffer-Local Variables, GNU Emacs Internals, Top
8 @appendix Standard Errors
10 Here is the complete list of the error symbols in standard Emacs,
11 grouped by concept. The list includes each symbol's message (on the
12 @code{error-message} property of the symbol) and a cross reference to a
13 description of how the error can occur.
15 Each error symbol has an @code{error-conditions} property that is a
16 list of symbols. Normally this list includes the error symbol itself
17 and the symbol @code{error}. Occasionally it includes additional
18 symbols, which are intermediate classifications, narrower than
19 @code{error} but broader than a single error symbol. For example, all
20 the errors in accessing files have the condition @code{file-error}. If
21 we do not say here that a certain error symbol has additional error
22 conditions, that means it has none.
24 As a special exception, the error symbol @code{quit} does not have the
25 condition @code{error}, because quitting is not considered an error.
27 @xref{Errors}, for an explanation of how errors are generated and
32 @var{string}; @var{reference}.
42 @item args-out-of-range
43 @code{"Args out of range"}@*
44 This happens when trying to access an element beyond the range of a
46 @xref{Sequences Arrays Vectors}, @xref{Text}.
49 @code{"Arithmetic error"}@*
50 @xref{Arithmetic Operations}.
52 @item beginning-of-buffer
53 @code{"Beginning of buffer"}@*
54 @xref{Character Motion}.
56 @item buffer-read-only
57 @code{"Buffer is read-only"}@*
58 @xref{Read Only Buffers}.
60 @item coding-system-error
61 @code{"Invalid coding system"}@*
62 @xref{Lisp and Coding Systems}.
64 @item cyclic-function-indirection
65 @code{"Symbol's chain of function indirections\@* contains a loop"}@*
66 @xref{Function Indirection}.
68 @item cyclic-variable-indirection
69 @code{"Symbol's chain of variable indirections\@* contains a loop"}@*
70 @xref{Variable Aliases}.
73 @code{"End of buffer"}@*
74 @xref{Character Motion}.
77 @code{"End of file during parsing"}@*
78 Note that this is not a subcategory of @code{file-error},
79 because it pertains to the Lisp reader, not to file I/O.@*
80 @xref{Input Functions}.
82 @item file-already-exists
83 This is a subcategory of @code{file-error}.@*
84 @xref{Writing to Files}.
87 This is a subcategory of @code{file-error}. It occurs when
88 @code{copy-file} tries and fails to set the last-modification time of
90 @xref{Changing Files}.
93 We do not list the error-strings of this error and its subcategories,
94 because the error message is normally constructed from the data items
95 alone when the error condition @code{file-error} is present. Thus,
96 the error-strings are not very relevant. However, these error symbols
97 do have @code{error-message} properties, and if no data is provided,
98 the @code{error-message} property @emph{is} used.@*
102 This is a subcategory of @code{file-error}.@*
105 @item file-supersession
106 This is a subcategory of @code{file-error}.@*
107 @xref{Modification Time}.
110 This is a subcategory of @code{file-error}, which results from problems
111 in accessing a remote file using ftp.@*
112 @xref{Remote Files,,, emacs, The GNU Emacs Manual}.
114 @item invalid-function
115 @code{"Invalid function"}@*
116 @xref{Function Indirection}.
118 @item invalid-read-syntax
119 @code{"Invalid read syntax"}@*
120 @xref{Printed Representation}.
123 @code{"Invalid regexp"}@*
124 @xref{Regular Expressions}.
127 @code{"The mark is not active now"}@*
131 @code{"No catch for tag"}@*
132 @xref{Catch and Throw}.
135 @code{"Scan error"}@*
136 This happens when certain syntax-parsing functions
137 find invalid syntax or mismatched parentheses.@*
138 @xref{List Motion}, and @ref{Parsing Expressions}.
141 @code{"Search failed"}@*
142 @xref{Searching and Matching}.
144 @item setting-constant
145 @code{"Attempt to set a constant symbol"}@*
146 The values of the symbols @code{nil} and @code{t},
147 and any symbols that start with @samp{:},
148 may not be changed.@*
149 @xref{Constant Variables, , Variables that Never Change}.
152 @code{"Text is read-only"}@*
153 This is a subcategory of @code{buffer-read-only}.@*
154 @xref{Special Properties}.
156 @item undefined-color
157 @code{"Undefined color"}@*
161 @code{"Symbol's function definition is void"}@*
162 @xref{Function Cells}.
165 @code{"Symbol's value as variable is void"}@*
166 @xref{Accessing Variables}.
168 @item wrong-number-of-arguments
169 @code{"Wrong number of arguments"}@*
170 @xref{Classifying Lists}.
172 @item wrong-type-argument
173 @code{"Wrong type argument"}@*
174 @xref{Type Predicates}.
177 These kinds of error, which are classified as special cases of
178 @code{arith-error}, can occur on certain systems for invalid use of
179 mathematical functions.
183 @code{"Arithmetic domain error"}@*
184 @xref{Math Functions}.
187 @code{"Arithmetic overflow error"}@*
188 This is a subcategory of @code{domain-error}.@*
189 @xref{Math Functions}.
192 @code{"Arithmetic range error"}@*
193 @xref{Math Functions}.
195 @item singularity-error
196 @code{"Arithmetic singularity error"}@*
197 This is a subcategory of @code{domain-error}.@*
198 @xref{Math Functions}.
200 @item underflow-error
201 @code{"Arithmetic underflow error"}@*
202 This is a subcategory of @code{domain-error}.@*
203 @xref{Math Functions}.
207 arch-tag: 717c6048-5d9d-4c7d-9a62-df57390b6f19