OptionalLabel.h

#ifndef UTIL_OPTIONAL_LABEL_H
#define UTIL_OPTIONAL_LABEL_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 <util/param/Label.h>
 
namespace Util
{

   class OptionalLabel  : public Label
   {
 
   public:

      OptionalLabel();

      explicit OptionalLabel(std::string string);

      explicit OptionalLabel(const char* string);

      OptionalLabel(const OptionalLabel& other);

      virtual ~OptionalLabel();
 
   };
 
} 
#endif