/* Declaration for error-reporting function
   Copyright (C) 1995-1997, 2003, 2006, 2008-2022 Free Software Foundation,
   Inc.
   This file is part of the GNU C Library.

   This file is free software: you can redistribute it and/or modify
   it under the terms of the GNU Lesser General Public License as
   published by the Free Software Foundation; either version 2.1 of the
   License, or (at your option) any later version.

   This file 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 Lesser General Public License for more details.

   You should have received a copy of the GNU Lesser General Public License
   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */

#ifndef _ERROR_H
#define _ERROR_H 1

/* Get _GL_ATTRIBUTE_SPEC_PRINTF_STANDARD, _GL_ATTRIBUTE_SPEC_PRINTF_SYSTEM.  */
#include <stdio.h>

#if GNULIB_REPLACE_ERROR
# undef error_print_progname
# undef error_message_count
# undef error_one_per_line
# define error_print_progname rpl_error_print_progname
# define error_message_count rpl_error_message_count
# define error_one_per_line rpl_error_one_per_line
#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, ...)
#if GNULIB_VFPRINTF_POSIX
     _GL_ATTRIBUTE_FORMAT ((_GL_ATTRIBUTE_SPEC_PRINTF_STANDARD, 3, 4))
#else
     _GL_ATTRIBUTE_FORMAT ((_GL_ATTRIBUTE_SPEC_PRINTF_SYSTEM, 3, 4))
#endif
     ;

extern void error_at_line (int __status, int __errnum, const char *__fname,
                           unsigned int __lineno, const char *__format, ...)
#if GNULIB_VFPRINTF_POSIX
     _GL_ATTRIBUTE_FORMAT ((_GL_ATTRIBUTE_SPEC_PRINTF_STANDARD, 5, 6))
#else
     _GL_ATTRIBUTE_FORMAT ((_GL_ATTRIBUTE_SPEC_PRINTF_SYSTEM, 5, 6))
#endif
     ;

/* 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 DLL_VARIABLE void (*error_print_progname) (void);

/* This variable is incremented each time 'error' is called.  */
extern DLL_VARIABLE 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 DLL_VARIABLE int error_one_per_line;

#ifdef __cplusplus
}
#endif

#endif /* error.h */
