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/* Copyright (C) 1991-2018 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, see
<http://www.gnu.org/licenses/>. */
/*
* ISO C99 Standard: 7.5 Errors <errno.h>
*/
#ifndef _ERRNO_H
#define _ERRNO_H 1
#include <features.h>
/* The system-specific definitions of the E* constants, as macros. */
#include <bits/errno.h>
/* When included from assembly language, this header only provides the
E* constants. */
#ifndef __ASSEMBLER__
__BEGIN_DECLS
/* The error code set by various library functions. */
extern int *__errno_location (void) __THROW __attribute_const__;
# define errno (*__errno_location ())
# 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]. */
extern char *program_invocation_name;
extern char *program_invocation_short_name;
/* bits/errno.h may have defined this type. If it didn't, provide a
fallback definition. */
# ifndef __error_t_defined
# define __error_t_defined 1
typedef int error_t;
# endif
# endif /* __USE_GNU */
__END_DECLS
#endif /* !__ASSEMBLER__ */
#endif /* errno.h */
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