37 template<
typename Scalar>
friend class DiscreteProblem;
template<
typename Scalar>
friend class Solution;
friend class CurvMap;
friend class RefMap;
template<
typename Scalar>
friend class RefinementSelectors::H1ProjBasedSelector;
template<
typename Scalar>
friend class RefinementSelectors::L2ProjBasedSelector;
template<
typename Scalar>
friend class RefinementSelectors::HcurlProjBasedSelector;
template<
typename Scalar>
friend class RefinementSelectors::OptimumSelector;
friend class PrecalcShapeset;