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/* Error constants. Generic version.
Copyright (C) 1991-2020 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
<https://www.gnu.org/licenses/>. */
/* This file defines the errno constants. */
#ifndef _BITS_ERRNO_H
#define _BITS_ERRNO_H 1
#if !defined _ERRNO_H
# error "Never include <bits/errno.h> directly; use <errno.h> instead."
#endif
#error "Generic bits/errno.h included -- port is incomplete."
/* Authors of new ports of the GNU C Library must override this file
with their own bits/errno.h in an appropriate subdirectory of
sysdeps/. Its function is to define all of the error constants
from C2011 and POSIX.1-2008, with values appropriate to the
operating system, and any additional OS-specific error constants.
C2011 requires all error constants to be object-like macros that
expand to "integer constant expressions with type int, positive
values, and suitable for use in #if directives". Moreover, all of
their names must begin with a capital E, followed immediately by
either another capital letter, or a digit. It is OK to define
macros that are not error constants, but only in the implementation
namespace.
errno.h is sometimes included from assembly language. Therefore,
when __ASSEMBLER__ is defined, bits/errno.h may only define macros;
it may not make any other kind of C declaration or definition.
Also, the error constants should, if at all possible, expand to
simple decimal or hexadecimal numbers. */
#endif /* bits/errno.h. */
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