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! */
32 static void print_location (cpp_reader
*, unsigned int, unsigned int);
34 /* Print the logical file location (LINE, COL) in preparation for a
35 diagnostic. Outputs the #include chain if it has changed. A line
36 of zero suppresses the include stack, and outputs the program name
39 print_location (cpp_reader
*pfile
, unsigned int line
, unsigned int col
)
41 if (!pfile
->buffer
|| line
== 0)
42 fprintf (stderr
, "%s: ", progname
);
45 const struct line_map
*map
;
47 map
= linemap_lookup (&pfile
->line_maps
, line
);
48 linemap_print_containing_files (&pfile
->line_maps
, map
);
50 line
= SOURCE_LINE (map
, line
);
55 fprintf (stderr
, "%s:", map
->to_file
);
56 else if (CPP_OPTION (pfile
, show_column
) == 0)
57 fprintf (stderr
, "%s:%u:", map
->to_file
, line
);
59 fprintf (stderr
, "%s:%u:%u:", map
->to_file
, line
, col
);
65 /* Set up for a diagnostic: print the file and line, bump the error
66 counter, etc. LINE is the logical line number; zero means to print
67 at the location of the previously lexed token, which tends to be
68 the correct place by default. Returns 0 if the error has been
71 _cpp_begin_message (cpp_reader
*pfile
, int code
, unsigned int line
,
74 int level
= DL_EXTRACT (code
);
80 if (CPP_IN_SYSTEM_HEADER (pfile
)
81 && ! CPP_OPTION (pfile
, warn_system_headers
))
85 case DL_WARNING_SYSHDR
:
86 if (CPP_OPTION (pfile
, warnings_are_errors
)
87 || (level
== DL_PEDWARN
&& CPP_OPTION (pfile
, pedantic_errors
)))
89 if (CPP_OPTION (pfile
, inhibit_errors
))
94 else if (CPP_OPTION (pfile
, inhibit_warnings
))
99 if (CPP_OPTION (pfile
, inhibit_errors
))
101 /* ICEs cannot be inhibited. */
107 print_location (pfile
, line
, column
);
108 if (DL_WARNING_P (level
))
109 fputs (_("warning: "), stderr
);
110 else if (level
== DL_ICE
)
111 fputs (_("internal error: "), stderr
);
116 /* Don't remove the blank before do, as otherwise the exgettext
117 script will mistake this as a function definition */
118 #define v_message(msgid, ap) \
119 do { vfprintf (stderr, _(msgid), ap); putc ('\n', stderr); } while (0)
121 /* Exported interface. */
123 /* Print an error at the location of the previously lexed token. */
125 cpp_error (cpp_reader
* pfile
, int level
, const char *msgid
, ...)
127 unsigned int line
, column
;
130 va_start (ap
, msgid
);
134 if (CPP_OPTION (pfile
, traditional
))
136 if (pfile
->state
.in_directive
)
137 line
= pfile
->directive_line
;
144 line
= pfile
->cur_token
[-1].line
;
145 column
= pfile
->cur_token
[-1].col
;
151 if (_cpp_begin_message (pfile
, level
, line
, column
))
152 v_message (msgid
, ap
);
157 /* Print an error at a specific location. */
159 cpp_error_with_line (cpp_reader
*pfile
, int level
,
160 unsigned int line
, unsigned int column
,
161 const char *msgid
, ...)
165 va_start (ap
, msgid
);
167 if (_cpp_begin_message (pfile
, level
, line
, column
))
168 v_message (msgid
, ap
);
174 cpp_errno (cpp_reader
*pfile
, int level
, const char *msgid
)
176 if (msgid
[0] == '\0')
179 cpp_error (pfile
, level
, "%s: %s", msgid
, xstrerror (errno
));