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/* Copyright (C) 1991, 1992, 1993, 1994, 1995 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 Library General Public License as
published by the Free Software Foundation; either version 2 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
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with the GNU C Library; see the file COPYING.LIB. If
not, write to the, 1992 Free Software Foundation, Inc., 675 Mass Ave,
Cambridge, MA 02139, USA. */
/*
* ANSI Standard: 4.1.3 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 <errnos.h>
#undef __need_Emath
#ifdef _ERRNO_H
/* Declare the `errno' variable. */
extern int errno;
#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
__END_DECLS
#endif
#endif /* errno.h */
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