Method CheckElement

fem/diffop.hpp:198–204

comment out this line when implementation is complete

    using FiniteElementType = FiniteElement; // comment out this line when implementation is complete
    static void CheckElement(const FiniteElement& fel)
    {
      if constexpr (!std::is_same_v<FiniteElement, typename DOP::FiniteElementType>)
        if (!dynamic_cast<const typename DOP::FiniteElementType*>(&fel))
          throw Exception(string("expected ") + typeid(typename DOP::FiniteElementType).name() + " got " +
                          typeid(fel).name());
    };

  };