mirror of
https://sourceware.org/git/glibc.git
synced 2024-12-14 23:30:06 +00:00
688903eb3e
* All files with FSF copyright notices: Update copyright dates using scripts/update-copyrights. * locale/programs/charmap-kw.h: Regenerated. * locale/programs/locfile-kw.h: Likewise.
51 lines
2.1 KiB
C
51 lines
2.1 KiB
C
/* Error constants. Generic version.
|
|
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/>. */
|
|
|
|
/* 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. */
|