76 lines
2.8 KiB
C
76 lines
2.8 KiB
C
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/* Declaration for error-reporting function
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Copyright (C) 1995-1997, 2003, 2006, 2008-2020 Free Software Foundation,
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Inc.
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This file is part of the GNU C Library.
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <https://www.gnu.org/licenses/>. */
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#ifndef _ERROR_H
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#define _ERROR_H 1
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/* The __attribute__ feature is available in gcc versions 2.5 and later.
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The __-protected variants of the attributes 'format' and 'printf' are
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accepted by gcc versions 2.6.4 (effectively 2.7) and later.
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We enable _GL_ATTRIBUTE_FORMAT only if these are supported too, because
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gnulib and libintl do '#define printf __printf__' when they override
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the 'printf' function. */
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#if __GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 7)
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# define _GL_ATTRIBUTE_FORMAT(spec) __attribute__ ((__format__ spec))
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#else
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# define _GL_ATTRIBUTE_FORMAT(spec) /* empty */
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#endif
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/* On mingw, the flavor of printf depends on whether the extensions module
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* is in use; the check for <stdio.h> determines the witness macro. */
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#ifndef _GL_ATTRIBUTE_SPEC_PRINTF
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# if GNULIB_PRINTF_ATTRIBUTE_FLAVOR_GNU
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# define _GL_ATTRIBUTE_SPEC_PRINTF __gnu_printf__
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# else
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# define _GL_ATTRIBUTE_SPEC_PRINTF __printf__
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# endif
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#endif
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#ifdef __cplusplus
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extern "C" {
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#endif
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/* Print a message with 'fprintf (stderr, FORMAT, ...)';
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if ERRNUM is nonzero, follow it with ": " and strerror (ERRNUM).
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If STATUS is nonzero, terminate the program with 'exit (STATUS)'. */
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extern void error (int __status, int __errnum, const char *__format, ...)
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_GL_ATTRIBUTE_FORMAT ((_GL_ATTRIBUTE_SPEC_PRINTF, 3, 4));
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extern void error_at_line (int __status, int __errnum, const char *__fname,
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unsigned int __lineno, const char *__format, ...)
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_GL_ATTRIBUTE_FORMAT ((_GL_ATTRIBUTE_SPEC_PRINTF, 5, 6));
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/* If NULL, error will flush stdout, then print on stderr the program
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name, a colon and a space. Otherwise, error will call this
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function without parameters instead. */
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extern void (*error_print_progname) (void);
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/* This variable is incremented each time 'error' is called. */
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extern unsigned int error_message_count;
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/* Sometimes we want to have at most one error per line. This
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variable controls whether this mode is selected or not. */
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extern int error_one_per_line;
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#ifdef __cplusplus
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}
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#endif
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#endif /* error.h */
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