| 1 | /* Declaration for error-reporting function
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| 2 | Copyright (C) 1995-1997, 2003, 2006, 2008-2012 Free Software Foundation,
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| 3 | Inc.
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| 4 | This file is part of the GNU C Library.
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| 5 |
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| 6 | This program is free software: you can redistribute it and/or modify
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| 7 | it under the terms of the GNU General Public License as published by
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| 8 | the Free Software Foundation; either version 3 of the License, or
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| 9 | (at your option) any later version.
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| 10 |
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| 11 | This program is distributed in the hope that it will be useful,
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| 12 | but WITHOUT ANY WARRANTY; without even the implied warranty of
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| 13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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| 14 | GNU General Public License for more details.
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| 15 |
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| 16 | You should have received a copy of the GNU General Public License
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| 17 | along with this program. If not, see <http://www.gnu.org/licenses/>. */
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| 18 |
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| 19 | #ifndef _ERROR_H
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| 20 | #define _ERROR_H 1
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| 21 |
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| 22 | /* The __attribute__ feature is available in gcc versions 2.5 and later.
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| 23 | The __-protected variants of the attributes 'format' and 'printf' are
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| 24 | accepted by gcc versions 2.6.4 (effectively 2.7) and later.
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| 25 | We enable _GL_ATTRIBUTE_FORMAT only if these are supported too, because
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| 26 | gnulib and libintl do '#define printf __printf__' when they override
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| 27 | the 'printf' function. */
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| 28 | #if __GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 7)
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| 29 | # define _GL_ATTRIBUTE_FORMAT(spec) __attribute__ ((__format__ spec))
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| 30 | #else
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| 31 | # define _GL_ATTRIBUTE_FORMAT(spec) /* empty */
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| 32 | #endif
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| 33 |
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| 34 | #ifdef __cplusplus
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| 35 | extern "C" {
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| 36 | #endif
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| 37 |
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| 38 | /* Print a message with 'fprintf (stderr, FORMAT, ...)';
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| 39 | if ERRNUM is nonzero, follow it with ": " and strerror (ERRNUM).
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| 40 | If STATUS is nonzero, terminate the program with 'exit (STATUS)'. */
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| 41 |
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| 42 | extern void error (int __status, int __errnum, const char *__format, ...)
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| 43 | _GL_ATTRIBUTE_FORMAT ((__printf__, 3, 4));
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| 44 |
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| 45 | extern void error_at_line (int __status, int __errnum, const char *__fname,
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| 46 | unsigned int __lineno, const char *__format, ...)
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| 47 | _GL_ATTRIBUTE_FORMAT ((__printf__, 5, 6));
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| 48 |
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| 49 | /* If NULL, error will flush stdout, then print on stderr the program
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| 50 | name, a colon and a space. Otherwise, error will call this
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| 51 | function without parameters instead. */
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| 52 | extern void (*error_print_progname) (void);
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| 53 |
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| 54 | /* This variable is incremented each time 'error' is called. */
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| 55 | extern unsigned int error_message_count;
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| 56 |
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| 57 | /* Sometimes we want to have at most one error per line. This
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| 58 | variable controls whether this mode is selected or not. */
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| 59 | extern int error_one_per_line;
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| 60 |
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| 61 | #ifdef __cplusplus
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| 62 | }
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| 63 | #endif
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| 64 |
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| 65 | #endif /* error.h */
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