Bit.h

#ifndef UTIL_BIT_H
#define UTIL_BIT_H

/*
* 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.
*/

namespace Util
{

   class Bit 
   {
   public:
  
      Bit();
  
      Bit(unsigned int shift);
  
      void setMask(unsigned int shift);
  
      void set(unsigned int& flags) const;
   
      void clear(unsigned int& flags) const;

      bool isSet(unsigned int flags) const;
   
      unsigned int mask() const;

   private:

      unsigned int mask_;
   
   };

   /*
   * Set this bit in the flags parameter.
   */
   inline void Bit::set(unsigned int& flags) const
   {  flags |= mask_; }

   /*
   * Clear this bit in the flags parameter.
   */
   inline void Bit::clear(unsigned int& flags) const
   {  flags &= (~mask_); }

   /*
   * Is this bit set in the flags integer?
   */
   inline bool Bit::isSet(unsigned int flags) const
   {  return bool(flags & mask_); }

   /*
   * Return unsigned int with only this bit set.
   */
   inline unsigned int Bit::mask() const
   {  return mask_; }
   
}
#endif