idgridpart/iterator.hh

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#ifndef DUNE_FEM_GRIDPART_IDGRIDPART_ITERATOR_HH
#define DUNE_FEM_GRIDPART_IDGRIDPART_ITERATOR_HH
 
#include <type_traits>
#include <utility>
 
#include <dune/common/version.hh>
#include <dune/grid/common/gridenums.hh>
 
namespace Dune
{
 
  namespace Fem
  {
 
    // IdIterator
    // ----------
 
    template< int codim, PartitionIteratorType pitype, class GridFamily >
    class IdIterator
    {
      typedef typename std::remove_const< GridFamily >::type::Traits Traits;
 
      typedef typename Traits::HostGridPartType HostGridPartType;
 
    public:
      typedef typename Traits::ExtraData ExtraData;
      typedef typename HostGridPartType::template Codim< codim >::template Partition< pitype >::IteratorType HostIteratorType;
 
      typedef typename Traits::template Codim< codim >::Entity Entity;
 
      IdIterator () = default;
 
      IdIterator ( ExtraData data, HostIteratorType hostIterator )
      : data_( std::move( data ) ),
        hostIterator_( std::move( hostIterator ) )
      {}
 
      void increment ()
      {
        ++hostIterator_;
      }
 
      Entity dereference () const
      {
        return typename Entity::Implementation( data_, *hostIterator_ );
      }
 
      bool equals ( const IdIterator &rhs ) const
      {
        return hostIterator_ == rhs.hostIterator_;
      }
 
      int level () const
      {
        return hostIterator_.level();
      }
 
    private:
      ExtraData data_;
      HostIteratorType hostIterator_;
    };
 
  } // namespace Fem
 
} // namespace Dune
 
#endif // #ifndef DUNE_FEM_GRIDPART_IDGRIDPART_ITERATOR_HH