1 /* Default error handlers for CPP Library.
2 Copyright (C) 1986, 1987, 1989, 1992, 1993, 1994, 1995, 1998, 1999, 2000,
3 2001, 2002 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! */
28 #include "coretypes.h"
34 static void print_location (cpp_reader
*, unsigned int, unsigned int);
36 /* Print the logical file location (LINE, COL) in preparation for a
37 diagnostic. Outputs the #include chain if it has changed. A line
38 of zero suppresses the include stack, and outputs the program name
41 print_location (cpp_reader
*pfile
, unsigned int line
, unsigned int col
)
43 if (!pfile
->buffer
|| line
== 0)
44 fprintf (stderr
, "%s: ", progname
);
47 const struct line_map
*map
;
49 map
= lookup_line (&pfile
->line_maps
, line
);
50 print_containing_files (&pfile
->line_maps
, map
);
52 line
= SOURCE_LINE (map
, line
);
57 fprintf (stderr
, "%s:", map
->to_file
);
58 else if (CPP_OPTION (pfile
, show_column
) == 0)
59 fprintf (stderr
, "%s:%u:", map
->to_file
, line
);
61 fprintf (stderr
, "%s:%u:%u:", map
->to_file
, line
, col
);
67 /* Set up for a diagnostic: print the file and line, bump the error
68 counter, etc. LINE is the logical line number; zero means to print
69 at the location of the previously lexed token, which tends to be
70 the correct place by default. Returns 0 if the error has been
73 _cpp_begin_message (cpp_reader
*pfile
, int code
, unsigned int line
,
76 int level
= DL_EXTRACT (code
);
82 if (CPP_IN_SYSTEM_HEADER (pfile
)
83 && ! CPP_OPTION (pfile
, warn_system_headers
))
87 case DL_WARNING_SYSHDR
:
88 if (CPP_OPTION (pfile
, warnings_are_errors
)
89 || (level
== DL_PEDWARN
&& CPP_OPTION (pfile
, pedantic_errors
)))
91 if (CPP_OPTION (pfile
, inhibit_errors
))
96 else if (CPP_OPTION (pfile
, inhibit_warnings
))
101 if (CPP_OPTION (pfile
, inhibit_errors
))
103 /* ICEs cannot be inhibited. */
109 print_location (pfile
, line
, column
);
110 if (DL_WARNING_P (level
))
111 fputs (_("warning: "), stderr
);
112 else if (level
== DL_ICE
)
113 fputs (_("internal error: "), stderr
);
118 /* Don't remove the blank before do, as otherwise the exgettext
119 script will mistake this as a function definition */
120 #define v_message(msgid, ap) \
121 do { vfprintf (stderr, _(msgid), ap); putc ('\n', stderr); } while (0)
123 /* Exported interface. */
125 /* Print an error at the location of the previously lexed token. */
127 cpp_error (cpp_reader
* pfile
, int level
, const char *msgid
, ...)
129 unsigned int line
, column
;
132 va_start (ap
, msgid
);
136 if (CPP_OPTION (pfile
, traditional
))
138 if (pfile
->state
.in_directive
)
139 line
= pfile
->directive_line
;
146 line
= pfile
->cur_token
[-1].line
;
147 column
= pfile
->cur_token
[-1].col
;
153 if (_cpp_begin_message (pfile
, level
, line
, column
))
154 v_message (msgid
, ap
);
159 /* Print an error at a specific location. */
161 cpp_error_with_line (cpp_reader
*pfile
, int level
,
162 unsigned int line
, unsigned int column
,
163 const char *msgid
, ...)
167 va_start (ap
, msgid
);
169 if (_cpp_begin_message (pfile
, level
, line
, column
))
170 v_message (msgid
, ap
);
176 cpp_errno (cpp_reader
*pfile
, int level
, const char *msgid
)
178 if (msgid
[0] == '\0')
181 cpp_error (pfile
, level
, "%s: %s", msgid
, xstrerror (errno
));