+typedef SMDS_Iterator<const SMDS_MeshNode *> SMDS_NodeIterator;
+typedef boost::shared_ptr<SMDS_Iterator<const SMDS_MeshNode *> > SMDS_NodeIteratorPtr;
+
+typedef SMDS_Iterator<const SMDS_MeshEdge *> SMDS_EdgeIterator;
+typedef boost::shared_ptr<SMDS_Iterator<const SMDS_MeshEdge *> > SMDS_EdgeIteratorPtr;
+
+typedef SMDS_Iterator<const SMDS_MeshFace *> SMDS_FaceIterator;
+typedef boost::shared_ptr<SMDS_Iterator<const SMDS_MeshFace *> > SMDS_FaceIteratorPtr;
+
+typedef SMDS_Iterator<const SMDS_MeshVolume *> SMDS_VolumeIterator;
+typedef boost::shared_ptr<SMDS_Iterator<const SMDS_MeshVolume *> > SMDS_VolumeIteratorPtr;
+