functor.h

/*
  MusicXML Library
  Copyright (C) Grame 2006-2013
 
  This Source Code Form is subject to the terms of the Mozilla Public
  License, v. 2.0. If a copy of the MPL was not distributed with this
  file, You can obtain one at http://mozilla.org/MPL/2.0/.
 
  Grame Research Laboratory, 11, cours de Verdun Gensoul 69002 Lyon - France
  research@grame.fr
*/
 
#ifndef __functor__
#define __functor__
 
namespace MusicXML2 
{
 
template <typename R>
class functor {
    public:
        virtual ~functor() {}
        virtual R operator ()() = 0;
};
 
}
 
#endif