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- /* Definitions of macros to access `dev_t' values.
- Copyright (C) 1996-2017 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/>. */
- #ifndef _SYS_SYSMACROS_H_OUTER
- #ifndef __SYSMACROS_DEPRECATED_INCLUSION
- # define _SYS_SYSMACROS_H_OUTER 1
- #endif
- /* If <sys/sysmacros.h> is included after <sys/types.h>, these macros
- will already be defined, and we need to redefine them without the
- deprecation warnings. (If they are included in the opposite order,
- the outer #ifndef will suppress this entire file and the macros
- will be usable without warnings.) */
- #undef major
- #undef minor
- #undef makedev
- /* This is the macro that must be defined to satisfy the misuse check
- in bits/sysmacros.h. */
- #ifndef _SYS_SYSMACROS_H
- #define _SYS_SYSMACROS_H 1
- #include <features.h>
- #include <bits/types.h>
- #include <bits/sysmacros.h>
- /* Caution: The text of this deprecation message is unquoted, so that
- #symbol can be substituted. (It is converted to a string by
- __SYSMACROS_DM1.) This means the message must be a sequence of
- complete pp-tokens; in particular, English contractions (it's,
- can't) cannot be used.
- The message has been manually word-wrapped to fit in 80 columns
- when output by GCC 5 and 6. The first line is shorter to leave
- some room for the "foo.c:23: warning:" annotation. */
- #define __SYSMACROS_DM(symbol) __SYSMACROS_DM1 \
- (In the GNU C Library, #symbol is defined\n\
- by <sys/sysmacros.h>. For historical compatibility, it is\n\
- currently defined by <sys/types.h> as well, but we plan to\n\
- remove this soon. To use #symbol, include <sys/sysmacros.h>\n\
- directly. If you did not intend to use a system-defined macro\n\
- #symbol, you should undefine it after including <sys/types.h>.)
- /* This macro is variadic because the deprecation message above
- contains commas. */
- #define __SYSMACROS_DM1(...) __glibc_macro_warning (#__VA_ARGS__)
- #define __SYSMACROS_DECL_TEMPL(rtype, name, proto) \
- extern rtype gnu_dev_##name proto __THROW __attribute_const__;
- #define __SYSMACROS_IMPL_TEMPL(rtype, name, proto) \
- __extension__ __extern_inline __attribute_const__ rtype \
- __NTH (gnu_dev_##name proto)
- __BEGIN_DECLS
- __SYSMACROS_DECLARE_MAJOR (__SYSMACROS_DECL_TEMPL)
- __SYSMACROS_DECLARE_MINOR (__SYSMACROS_DECL_TEMPL)
- __SYSMACROS_DECLARE_MAKEDEV (__SYSMACROS_DECL_TEMPL)
- #ifdef __USE_EXTERN_INLINES
- __SYSMACROS_DEFINE_MAJOR (__SYSMACROS_IMPL_TEMPL)
- __SYSMACROS_DEFINE_MINOR (__SYSMACROS_IMPL_TEMPL)
- __SYSMACROS_DEFINE_MAKEDEV (__SYSMACROS_IMPL_TEMPL)
- #endif
- __END_DECLS
- #endif /* _SYS_SYSMACROS_H */
- #ifndef __SYSMACROS_NEED_IMPLEMENTATION
- # undef __SYSMACROS_DECL_TEMPL
- # undef __SYSMACROS_IMPL_TEMPL
- # undef __SYSMACROS_DECLARE_MAJOR
- # undef __SYSMACROS_DECLARE_MINOR
- # undef __SYSMACROS_DECLARE_MAKEDEV
- # undef __SYSMACROS_DEFINE_MAJOR
- # undef __SYSMACROS_DEFINE_MINOR
- # undef __SYSMACROS_DEFINE_MAKEDEV
- #endif
- #ifdef __SYSMACROS_DEPRECATED_INCLUSION
- # define major(dev) __SYSMACROS_DM (major) gnu_dev_major (dev)
- # define minor(dev) __SYSMACROS_DM (minor) gnu_dev_minor (dev)
- # define makedev(maj, min) __SYSMACROS_DM (makedev) gnu_dev_makedev (maj, min)
- #else
- # define major(dev) gnu_dev_major (dev)
- # define minor(dev) gnu_dev_minor (dev)
- # define makedev(maj, min) gnu_dev_makedev (maj, min)
- #endif
- #endif /* sys/sysmacros.h */
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