//  SMESH SMDS : implementaion of Salome mesh data structure
//
//  Copyright (C) 2003  OPEN CASCADE, EADS/CCR, LIP6, CEA/DEN,
//  CEDRAT, EDF R&D, LEG, PRINCIPIA R&D, BUREAU VERITAS 
// 
//  This library is free software; you can redistribute it and/or 
//  modify it under the terms of the GNU Lesser General Public 
//  License as published by the Free Software Foundation; either 
//  version 2.1 of the License. 
// 
//  This library is distributed in the hope that it will be useful, 
//  but WITHOUT ANY WARRANTY; without even the implied warranty of 
//  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU 
//  Lesser General Public License for more details. 
// 
//  You should have received a copy of the GNU Lesser General Public 
//  License along with this library; if not, write to the Free Software 
//  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA 
// 
//  See http://www.opencascade.org/SALOME/ or email : webmaster.salome@opencascade.org 

#ifndef _SMDS_Iterator_HeaderFile
#define _SMDS_Iterator_HeaderFile

///////////////////////////////////////////////////////////////////////////////
///Abstract class for iterators
///@author Jerome Robert
///////////////////////////////////////////////////////////////////////////////
template<typename VALUE> class SMDS_Iterator
{
  public:
	/// Return true if and only if there are other object in this iterator
	virtual bool more()=0;
	
	/// Return the current object and step to the next one
	virtual VALUE next()=0;
	
	/// Delete the current element and step to the next one
	virtual void remove(){}
	
	/// Provide virtual destructor just for case if some derived iterator
        /// must have a destructor
	virtual ~SMDS_Iterator(){}
};

#endif