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/* Copyright (C) 1991,92,93,94,95,96,97,2002 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library 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.
The GNU C Library 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 the GNU C Library; if not, write to the Free
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
02111-1307 USA. */
/*
* ISO C99 Standard: 7.5 Errors <errno.h>
*/
#ifndef _ERRNO_H
/* The includer defined __need_Emath if he wants only the definitions
of EDOM and ERANGE, and not everything else. */
#ifndef __need_Emath
# define _ERRNO_H 1
# include <features.h>
#endif
__BEGIN_DECLS
/* Get the error number constants from the system-specific file.
This file will test __need_Emath and _ERRNO_H. */
#include <bits/errno.h>
#undef __need_Emath
#ifdef _ERRNO_H
/* Declare the `errno' variable, unless it's defined as a macro by
bits/errno.h. This is the case in GNU, where it is a per-thread
variable. This redeclaration using the macro still works, but it
will be a function declaration without a prototype and may trigger
a -Wstrict-prototypes warning. */
#ifndef errno
extern int errno;
#endif
#ifdef __USE_GNU
/* The full and simple forms of the name with which the program was
invoked. These variables are set up automatically at startup based on
the value of ARGV[0] (this works only if you use GNU ld). */
extern char *program_invocation_name, *program_invocation_short_name;
#endif /* __USE_GNU */
#endif /* _ERRNO_H */
__END_DECLS
#endif /* _ERRNO_H */
/* The Hurd <bits/errno.h> defines `error_t' as an enumerated type so
that printing `error_t' values in the debugger shows the names. We
might need this definition sometimes even if this file was included
before. */
#if defined __USE_GNU || defined __need_error_t
# ifndef __error_t_defined
typedef int error_t;
# define __error_t_defined 1
# endif
# undef __need_error_t
#endif