/* Copyright (C) 2004  The KOS Team
 
    This program is free software; you can redistribute it and/or
    modify it under the terms of the GNU General Public License
    as published by the Free Software Foundation; either version 2
    of the License, or (at your option) any later version.
    
    This program 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 General Public License for more details.
    
    You should have received a copy of the GNU General Public License
    along with this program; if not, write to the Free Software
    Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
    USA. 
 */
 #ifndef _SOS_MACROS_H_
 #define _SOS_MACROS_H_
 
 /** Align on a boundary (MUST be a power of 2), so that return value <= val */
 #define SOS_ALIGN_INF(val,boundary) \
   (((unsigned)(val)) & (~((boundary)-1)))
  
 /** Align on a boundary (MUST be a power of 2), so that return value >= val */
 #define SOS_ALIGN_SUP(val,boundary) \
   ({ unsigned int __bnd=(boundary); \
      (((((unsigned)(val))-1) & (~(__bnd - 1))) + __bnd); })
 
 /**
  * @return TRUE if val is a power of 2.
  * @note val is evaluated multiple times
  */
 #define SOS_IS_POWER_OF_2(val) \
   ((((val) - 1) & (val)) == 0)
 
 #endif /* _SOS_MACROS_H_ */