ReferenceCounter.h

#ifndef UTIL_REFERENCE_COUNTER_H
#define UTIL_REFERENCE_COUNTER_H
 
/*
* Util Package - C++ Utilities for Scientific Computation
*
* Copyright 2010 - 2026, The Regents of the University of Minnesota
* Distributed under the terms of the GNU General Public License.
*/
 
namespace Util {

   class ReferenceCounter 
   {
   
   public:
   
      ReferenceCounter(); 
   
      int nRef() const;
  
      bool hasRefs() const;
   
   private:
  
      int nRef_;
   
      friend class CountedReference;
   
   };
 
   // Get the number of associated CountedReferences.
   inline int ReferenceCounter::nRef() const
   {  return nRef_; }
 
   // Does this counter have one or more associated CountedReferences?
   inline bool ReferenceCounter::hasRefs() const
   {  return (nRef_ > 0); }
 
} // namespace Util
#endif