text: /* Definitions of macros to access `dev_t' values.
     Copyright (C) 1996-2015 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
  
  #include <features.h>
  
  __BEGIN_DECLS __extension__ extern unsigned int gnu_dev_major(unsigned long long int __dev)
  __THROW __attribute_const__;
  __extension__ extern unsigned int gnu_dev_minor(unsigned long long int __dev)
  __THROW __attribute_const__;
  __extension__ extern unsigned long long int gnu_dev_makedev(unsigned int __major, unsigned int __minor)
  __THROW __attribute_const__;
  
  #ifdef __USE_EXTERN_INLINES
  __extension__ __extern_inline __attribute_const__ unsigned int __NTH(gnu_dev_major(unsigned long long int __dev))
  {
  	return ((__dev >> 8) & 0xfff) | ((unsigned int)(__dev >> 32) & ~0xfff);
  }
  
  __extension__ __extern_inline __attribute_const__ unsigned int __NTH(gnu_dev_minor(unsigned long long int __dev))
  {
  	return (__dev & 0xff) | ((unsigned int)(__dev >> 12) & ~0xff);
  }
  
  __extension__ __extern_inline __attribute_const__ unsigned long long int __NTH(gnu_dev_makedev(unsigned int __major, unsigned int __minor))
  {
  	return ((__minor & 0xff) | ((__major & 0xfff) << 8)
  		| (((unsigned long long int)(__minor & ~0xff)) << 12)
  		| (((unsigned long long int)(__major & ~0xfff)) << 32));
  }
  #endif
  __END_DECLS
  /* Access the functions with their traditional names.  */
  #define major(dev) gnu_dev_major (dev)
  #define minor(dev) gnu_dev_minor (dev)
  #define makedev(maj, min) gnu_dev_makedev (maj, min)
  #endif				/* sys/sysmacros.h */
  