Bit.cpp

/*
* Util Package - C++ Utilities for Scientific Computation
*
* Copyright 2010 - 2017, The Regents of the University of Minnesota
* Distributed under the terms of the GNU General Public License.
*/
 
#include "Bit.h"
#include <util/global.h>
#include <climits>
 
namespace Util
{
 
   /*
   * Default constructor.
   */
   Bit::Bit()
    : mask_(0)
   {}
 
   /*
   * Constructor.
   */
   Bit::Bit(unsigned int shift)
   {  setMask(shift); }
 
   /*
   * Set the bit mask.
   */
   void Bit::setMask(unsigned int shift)
   {  
      if (shift > sizeof(unsigned int)*CHAR_BIT) {
         UTIL_THROW("Shift is too large");
      }
      mask_ = 1 << shift;  
   }
 
}