IFunctor.h

#ifndef UTIL_I_FUNCTOR_H
#define UTIL_I_FUNCTOR_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.
*/
 
#include <list>
 
namespace Util
{
 
   template <typename T=void>
   class IFunctor {
 
   public:
 
      virtual ~IFunctor(){}
 
      virtual void operator () (const T& t) = 0;
 
   };
 
   // Functor for functions with no arguments.
 
   template <>
   class IFunctor<void> {
 
   public: 
 
      virtual ~IFunctor(){}
 
      virtual void operator () () = 0; 
 
   };
 
}
#endif