iterator.h

高效的c++科学算法库

/*                                                          -*- c++ -*-
 ******************************
 * Scientific Library (GNU Public Licence)
 *
 * Author: Laurent Deniau, [e-mail]
 *
 * $Id: iterator.h,v 1.1 1998/11/05 12:48:38 paubert Exp $
 *
 * Suggestions: [e-mail]
 * Bugs:   [e-mail]
 *
 * For more information, please see the sl++ Home Page:
 * http://wwwinfo.cern.ch/~ldeniau/sl.html
 *
 ******************************
 */

#ifndef SL_MATRIX_STRUCTURES_DIAGONAL_ITERATOR_H
#define SL_MATRIX_STRUCTURES_DIAGONAL_ITERATOR_H

#ifndef SL_MATRIX_STRUCTURES_DIAGONAL_H
#error <sl/matrix/structures/diagonal/iterator.h> must be included via <sl/matrix/structures/diagonal.h>
#endif

#ifdef HAVE_NAMESPACE
namespace sl 
{
#endif


    class DiagonalIterator : public GeneralIterator {


      public:

        typedef Diagonal structure_t;

        Index col () const { return my_i; }
        Index pos () const { return my_i; }


      public:

            DiagonalIterator(structure_t const* structure,
                             Index const i =MinIndex, Index const j =MinIndex)
            : GeneralIterator(structure->rows(),
                              structure->cols(),
                              i, j, i)
            {
                assert ( structure->rows() ==  structure->cols() );
                assert ( i == j );
            }


      public:

        void
            operator ++ () {
            if (++my_i > my_n) my_ok = false;
        }

          // use default incRow, incCol
    };



#ifdef HAVE_NAMESPACE
}
#endif 

#endif
// SL_MATRIX_STRUCTURES_DIAGONAL_ITERATOR_H