Go to the documentation of this file. 2 #ifndef DUNE_PDELAB_BACKEND_ISTLMATRIXBACKEND_HH 3 #warning "The file dune/pdelab/backend/istlmatrixbackend.hh is deprecated. Please use dune/pdelab/backend/istl.hh instead." 5 #endif // DUNE_PDELAB_BACKEND_ISTLMATRIXBACKEND_HH