error.h

/* error.h: declaration for error-reporting function
 * Copyright (C) 1995-1997, 2003, 2006, 2008-2012 Free Software Foundation,
 * Inc.
 * This file is part of the GNU C Library.
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

#ifndef _ERROR_H
#define _ERROR_H 1

/* The __attribute__ feature is available in gcc versions 2.5 and later.
 * The __-protected variants of the attributes 'format' and 'printf' are
 * accepted by gcc versions 2.6.4 (effectively 2.7) and later.
 * We enable _GL_ATTRIBUTE_FORMAT only if these are supported too, because
 * gnulib and libintl do '#define printf __printf__' when they override
 * the 'printf' function.  */
#if !defined(_GL_ATTRIBUTE_FORMAT)
# if defined(__GNUC__) && defined(__GNUC_MINOR__)
#  if (__GNUC__ > 2) || ((__GNUC__ == 2) && (__GNUC_MINOR__ >= 7))
#   define _GL_ATTRIBUTE_FORMAT(spec) __attribute__((__format__ spec))
#  else
#   define _GL_ATTRIBUTE_FORMAT(spec) /* empty */
#  endif /* GCC 2.7+ */
# else
#  define _GL_ATTRIBUTE_FORMAT(spec) /* empty */
# endif /* any gcc */
#endif /* !_GL_ATTRIBUTE_FORMAT */

#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */

/* Print a message with 'fprintf (stderr, FORMAT, ...)';
 * if ERRNUM is nonzero, follow it with ": " and strerror (ERRNUM).
 * If STATUS is nonzero, terminate the program with 'exit (STATUS)'.
 */
extern void error(int __status, int __errnum, const char *__format, ...)
     _GL_ATTRIBUTE_FORMAT((__printf__, 3, 4));

extern void error_at_line(int __status, int __errnum, const char *__fname,
						  unsigned int __lineno, const char *__format, ...)
     _GL_ATTRIBUTE_FORMAT((__printf__, 5, 6));

/* If NULL, error will flush stdout, then print on stderr the program
 * name, a colon and a space. Otherwise, error will call this
 * function without parameters instead. */
extern void (*error_print_progname)(void);

/* This variable is incremented each time 'error' is called.  */
extern unsigned int error_message_count;

/* Sometimes we want to have at most one error per line. This
 * variable controls whether this mode is selected or not.  */
extern int error_one_per_line;

#ifdef __cplusplus
}
#endif /* __cplusplus */

#endif /* error.h */

/* EOF */