/* Declaration for error-reporting function

   Copyright (C) 1995-1997, 2003, 2006, 2008-2018 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 <https://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 __GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 7)

# define _GL_ATTRIBUTE_FORMAT(spec) __attribute__ ((__format__ spec))

#else

# define _GL_ATTRIBUTE_FORMAT(spec) /* empty */

#endif

/* On mingw, the flavor of printf depends on whether the extensions module

 * is in use; the check for <stdio.h> determines the witness macro.  */

#ifndef _GL_ATTRIBUTE_SPEC_PRINTF

# if GNULIB_PRINTF_ATTRIBUTE_FLAVOR_GNU

#  define _GL_ATTRIBUTE_SPEC_PRINTF __gnu_printf__

# else

#  define _GL_ATTRIBUTE_SPEC_PRINTF __printf__

# endif

#endif

#ifdef __cplusplus

extern "C" {

#endif

/* 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 ((_GL_ATTRIBUTE_SPEC_PRINTF, 3, 4));

extern void error_at_line (int __status, int __errnum, const char *__fname,

                           unsigned int __lineno, const char *__format, ...)

     _GL_ATTRIBUTE_FORMAT ((_GL_ATTRIBUTE_SPEC_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

#endif /* error.h */