| /* Definitions of macros to access `dev_t' values. |
| Copyright (C) 1996-2014 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 |
| #define _SYS_SYSMACROS_H 1 |
| |
| /* For compatibility we provide alternative names. |
| |
| The problem here is that compilers other than GCC probably don't |
| have the `long long' type and so `dev_t' is actually an array. */ |
| #define major(dev) ((int)(((unsigned int) (dev) >> 8) & 0xff)) |
| #define minor(dev) ((int)((dev) & 0xff)) |
| #define makedev(major, minor) (((major) << 8) | (minor)) |
| |
| #endif /* sys/sysmacros.h */ |
