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6ec2e0f5 | 1 | /* Declaration for error-reporting function |
7a6dbc2f | 2 | Copyright (C) 1995-1997, 2003, 2006, 2008-2018 Free Software Foundation, |
6ec2e0f5 SDJ |
3 | Inc. |
4 | This file is part of the GNU C Library. | |
5 | ||
6 | This program is free software: you can redistribute it and/or modify | |
7 | it under the terms of the GNU General Public License as published by | |
8 | the Free Software Foundation; either version 3 of the License, or | |
9 | (at your option) any later version. | |
10 | ||
11 | This program is distributed in the hope that it will be useful, | |
12 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | GNU General Public License for more details. | |
15 | ||
16 | You should have received a copy of the GNU General Public License | |
7a6dbc2f | 17 | along with this program. If not, see <https://www.gnu.org/licenses/>. */ |
6ec2e0f5 SDJ |
18 | |
19 | #ifndef _ERROR_H | |
20 | #define _ERROR_H 1 | |
21 | ||
22 | /* The __attribute__ feature is available in gcc versions 2.5 and later. | |
23 | The __-protected variants of the attributes 'format' and 'printf' are | |
24 | accepted by gcc versions 2.6.4 (effectively 2.7) and later. | |
25 | We enable _GL_ATTRIBUTE_FORMAT only if these are supported too, because | |
26 | gnulib and libintl do '#define printf __printf__' when they override | |
27 | the 'printf' function. */ | |
28 | #if __GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 7) | |
29 | # define _GL_ATTRIBUTE_FORMAT(spec) __attribute__ ((__format__ spec)) | |
30 | #else | |
31 | # define _GL_ATTRIBUTE_FORMAT(spec) /* empty */ | |
32 | #endif | |
33 | ||
34 | /* On mingw, the flavor of printf depends on whether the extensions module | |
35 | * is in use; the check for <stdio.h> determines the witness macro. */ | |
36 | #ifndef _GL_ATTRIBUTE_SPEC_PRINTF | |
37 | # if GNULIB_PRINTF_ATTRIBUTE_FLAVOR_GNU | |
38 | # define _GL_ATTRIBUTE_SPEC_PRINTF __gnu_printf__ | |
39 | # else | |
40 | # define _GL_ATTRIBUTE_SPEC_PRINTF __printf__ | |
41 | # endif | |
42 | #endif | |
43 | ||
44 | #ifdef __cplusplus | |
45 | extern "C" { | |
46 | #endif | |
47 | ||
48 | /* Print a message with 'fprintf (stderr, FORMAT, ...)'; | |
49 | if ERRNUM is nonzero, follow it with ": " and strerror (ERRNUM). | |
50 | If STATUS is nonzero, terminate the program with 'exit (STATUS)'. */ | |
51 | ||
52 | extern void error (int __status, int __errnum, const char *__format, ...) | |
53 | _GL_ATTRIBUTE_FORMAT ((_GL_ATTRIBUTE_SPEC_PRINTF, 3, 4)); | |
54 | ||
55 | extern void error_at_line (int __status, int __errnum, const char *__fname, | |
56 | unsigned int __lineno, const char *__format, ...) | |
57 | _GL_ATTRIBUTE_FORMAT ((_GL_ATTRIBUTE_SPEC_PRINTF, 5, 6)); | |
58 | ||
59 | /* If NULL, error will flush stdout, then print on stderr the program | |
60 | name, a colon and a space. Otherwise, error will call this | |
61 | function without parameters instead. */ | |
62 | extern void (*error_print_progname) (void); | |
63 | ||
64 | /* This variable is incremented each time 'error' is called. */ | |
65 | extern unsigned int error_message_count; | |
66 | ||
67 | /* Sometimes we want to have at most one error per line. This | |
68 | variable controls whether this mode is selected or not. */ | |
69 | extern int error_one_per_line; | |
70 | ||
71 | #ifdef __cplusplus | |
72 | } | |
73 | #endif | |
74 | ||
75 | #endif /* error.h */ |