1 /* Default error handlers for CPP Library.
2 Copyright (C) 1986, 1987, 1989, 1992, 1993, 1994, 1995, 1998, 1999, 2000
3 Free Software Foundation, Inc.
4 Written by Per Bothner, 1994.
5 Based on CCCP program by Paul Rubin, June 1986
6 Adapted to ANSI C, Richard Stallman, Jan 1987
8 This program is free software; you can redistribute it and/or modify it
9 under the terms of the GNU General Public License as published by the
10 Free Software Foundation; either version 2, or (at your option) any
13 This program is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
18 You should have received a copy of the GNU General Public License
19 along with this program; if not, write to the Free Software
20 Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
22 In other words, you are welcome to use, share and improve this program.
23 You are forbidden to forbid anyone else to use, share and improve
24 what you give them. Help stamp out software-hoarding! */
32 static void print_containing_files PARAMS ((cpp_reader *, cpp_buffer *));
33 static void print_file_and_line PARAMS ((const char *, unsigned int,
36 #define v_message(msgid, ap) \
37 do { vfprintf (stderr, _(msgid), ap); putc ('\n', stderr); } while (0)
39 /* Print the file names and line numbers of the #include
40 commands which led to the current file. */
43 print_containing_files (pfile, ip)
49 /* If stack of files hasn't changed since we last printed
50 this info, don't repeat it. */
51 if (pfile->input_stack_listing_current)
54 /* Find the other, outer source files. */
55 for (ip = CPP_PREV_BUFFER (ip); ip != NULL; ip = CPP_PREV_BUFFER (ip))
60 /* N.B. The current line in each outer source file is one
61 greater than the line of the #include, so we must
62 subtract one to correct for that. */
63 fprintf (stderr, _("In file included from %s:%u"),
64 ip->nominal_fname, CPP_BUF_LINE (ip) - 1);
67 /* Translators note: this message is used in conjunction
68 with "In file included from %s:%ld" and some other
69 tricks. We want something like this:
71 | In file included from sys/select.h:123,
72 | from sys/types.h:234,
74 | bits/select.h:45: <error message here>
76 with all the "from"s lined up.
77 The trailing comma is at the beginning of this message,
78 and the trailing colon is not translated. */
79 fprintf (stderr, _(",\n from %s:%u"),
80 ip->nominal_fname, CPP_BUF_LINE (ip) - 1);
83 fputs (":\n", stderr);
85 /* Record we have printed the status as of this time. */
86 pfile->input_stack_listing_current = 1;
90 print_file_and_line (filename, line, column)
92 unsigned int line, column;
94 if (filename == 0 || *filename == '\0')
97 if (line == (unsigned int)-1)
98 fprintf (stderr, "%s: ", filename);
100 fprintf (stderr, "%s:%u:%u: ", filename, line, column);
102 fprintf (stderr, "%s:%u: ", filename, line);
105 /* Set up for an error message: print the file and line, bump the error
107 If it returns 0, this error has been suppressed. */
110 _cpp_begin_message (pfile, code, file, line, col)
112 enum error_type code;
117 cpp_buffer *ip = CPP_BUFFER (pfile);
123 if (! CPP_OPTION (pfile, warnings_are_errors))
125 if (CPP_OPTION (pfile, inhibit_warnings)
126 || (CPP_IN_SYSTEM_HEADER (pfile)
127 && ! CPP_OPTION (pfile, warn_system_headers)))
133 if (CPP_OPTION (pfile, inhibit_errors))
135 if (pfile->errors < CPP_FATAL_LIMIT)
141 if (! CPP_OPTION (pfile, pedantic_errors))
143 if (CPP_OPTION (pfile, inhibit_warnings)
144 || (CPP_IN_SYSTEM_HEADER (pfile)
145 && ! CPP_OPTION (pfile, warn_system_headers)))
151 if (CPP_OPTION (pfile, inhibit_errors))
153 if (pfile->errors < CPP_FATAL_LIMIT)
159 if (CPP_OPTION (pfile, inhibit_errors))
161 if (pfile->errors < CPP_FATAL_LIMIT)
164 /* Fatal errors cannot be inhibited. */
166 pfile->errors = CPP_FATAL_LIMIT;
169 fprintf (stderr, _("internal error: "));
170 pfile->errors = CPP_FATAL_LIMIT;
177 file = ip->nominal_fname;
179 line = _cpp_get_line (pfile, &col);
180 print_containing_files (pfile, ip);
181 print_file_and_line (file, line,
182 CPP_OPTION (pfile, show_column) ? col : 0);
185 fprintf (stderr, "%s: ", progname);
188 fputs (_("warning: "), stderr);
193 /* Exported interface. */
195 /* For reporting internal errors. Prints "internal error: " for you,
196 otherwise identical to cpp_fatal. */
199 cpp_ice VPARAMS ((cpp_reader *pfile, const char *msgid, ...))
201 #ifndef ANSI_PROTOTYPES
207 VA_START (ap, msgid);
209 #ifndef ANSI_PROTOTYPES
210 pfile = va_arg (ap, cpp_reader *);
211 msgid = va_arg (ap, const char *);
214 if (_cpp_begin_message (pfile, ICE, NULL, 0, 0))
215 v_message (msgid, ap);
219 /* Same as cpp_error, except we consider the error to be "fatal",
220 such as inconsistent options. I.e. there is little point in continuing.
221 (We do not exit, to support use of cpplib as a library.
222 Instead, it is the caller's responsibility to check
226 cpp_fatal VPARAMS ((cpp_reader *pfile, const char *msgid, ...))
228 #ifndef ANSI_PROTOTYPES
234 VA_START (ap, msgid);
236 #ifndef ANSI_PROTOTYPES
237 pfile = va_arg (ap, cpp_reader *);
238 msgid = va_arg (ap, const char *);
241 if (_cpp_begin_message (pfile, FATAL, NULL, 0, 0))
242 v_message (msgid, ap);
247 cpp_error VPARAMS ((cpp_reader * pfile, const char *msgid, ...))
249 #ifndef ANSI_PROTOTYPES
257 #ifndef ANSI_PROTOTYPES
258 pfile = va_arg (ap, cpp_reader *);
259 msgid = va_arg (ap, const char *);
262 if (_cpp_begin_message (pfile, ERROR, NULL, 0, 0))
263 v_message (msgid, ap);
268 cpp_error_with_line VPARAMS ((cpp_reader *pfile, int line, int column,
269 const char *msgid, ...))
271 #ifndef ANSI_PROTOTYPES
279 VA_START (ap, msgid);
281 #ifndef ANSI_PROTOTYPES
282 pfile = va_arg (ap, cpp_reader *);
283 line = va_arg (ap, int);
284 column = va_arg (ap, int);
285 msgid = va_arg (ap, const char *);
288 if (_cpp_begin_message (pfile, ERROR, NULL, line, column))
289 v_message (msgid, ap);
293 /* Error including a message from `errno'. */
295 cpp_error_from_errno (pfile, name)
299 cpp_error (pfile, "%s: %s", name, xstrerror (errno));
303 cpp_warning VPARAMS ((cpp_reader * pfile, const char *msgid, ...))
305 #ifndef ANSI_PROTOTYPES
311 VA_START (ap, msgid);
313 #ifndef ANSI_PROTOTYPES
314 pfile = va_arg (ap, cpp_reader *);
315 msgid = va_arg (ap, const char *);
318 if (_cpp_begin_message (pfile, WARNING, NULL, 0, 0))
319 v_message (msgid, ap);
324 cpp_warning_with_line VPARAMS ((cpp_reader * pfile, int line, int column,
325 const char *msgid, ...))
327 #ifndef ANSI_PROTOTYPES
335 VA_START (ap, msgid);
337 #ifndef ANSI_PROTOTYPES
338 pfile = va_arg (ap, cpp_reader *);
339 line = va_arg (ap, int);
340 column = va_arg (ap, int);
341 msgid = va_arg (ap, const char *);
344 if (_cpp_begin_message (pfile, WARNING, NULL, line, column))
345 v_message (msgid, ap);
350 cpp_pedwarn VPARAMS ((cpp_reader * pfile, const char *msgid, ...))
352 #ifndef ANSI_PROTOTYPES
358 VA_START (ap, msgid);
360 #ifndef ANSI_PROTOTYPES
361 pfile = va_arg (ap, cpp_reader *);
362 msgid = va_arg (ap, const char *);
365 if (_cpp_begin_message (pfile, PEDWARN, NULL, 0, 0))
366 v_message (msgid, ap);
371 cpp_pedwarn_with_line VPARAMS ((cpp_reader * pfile, int line, int column,
372 const char *msgid, ...))
374 #ifndef ANSI_PROTOTYPES
382 VA_START (ap, msgid);
384 #ifndef ANSI_PROTOTYPES
385 pfile = va_arg (ap, cpp_reader *);
386 line = va_arg (ap, int);
387 column = va_arg (ap, int);
388 msgid = va_arg (ap, const char *);
391 if (_cpp_begin_message (pfile, PEDWARN, NULL, line, column))
392 v_message (msgid, ap);
396 /* Report a warning (or an error if pedantic_errors)
397 giving specified file name and line number, not current. */
400 cpp_pedwarn_with_file_and_line VPARAMS ((cpp_reader *pfile,
401 const char *file, int line, int col,
402 const char *msgid, ...))
404 #ifndef ANSI_PROTOTYPES
413 VA_START (ap, msgid);
415 #ifndef ANSI_PROTOTYPES
416 pfile = va_arg (ap, cpp_reader *);
417 file = va_arg (ap, const char *);
418 line = va_arg (ap, int);
419 col = va_arg (ap, int);
420 msgid = va_arg (ap, const char *);
423 if (_cpp_begin_message (pfile, PEDWARN, file, line, col))
424 v_message (msgid, ap);
428 /* Print an error message not associated with a file. */
430 cpp_notice VPARAMS ((cpp_reader *pfile, const char *msgid, ...))
432 #ifndef ANSI_PROTOTYPES
438 VA_START (ap, msgid);
440 #ifndef ANSI_PROTOTYPES
441 pfile = va_arg (ap, cpp_reader *);
442 msgid = va_arg (ap, const char *);
445 if (pfile->errors < CPP_FATAL_LIMIT)
448 vfprintf (stderr, _(msgid), ap);
455 cpp_notice_from_errno (pfile, name)
461 cpp_notice (pfile, "%s: %s", name, xstrerror (errno));
468 return (const char *) _cpp_token_spellings[type].name;