removed usage of hierarchic vector wrapper where not necessary

src/amdis/DirichletBC.hpp

@@ -11,7 +11,6 @@
 #include <amdis/Output.hpp>
 #include <amdis/common/Concepts.hpp>
 #include <amdis/common/ValueCategory.hpp>
-#include <amdis/linear_algebra/HierarchicWrapper.hpp>
 #include <amdis/utility/RangeType.hpp>
 #include <amdis/utility/TreeData.hpp>
 
@@ -84,14 +83,12 @@ namespace AMDiS
       using Dune::Functions::interpolate;
       Dune::Hybrid::ifElse(std::is_same<RangeType_t<typename RowBasis::LocalView::Tree>, Range>{},
         [&](auto id) {
-          auto rhsWrapper = hierarchicVectorWrapper(rhs.vector());
-          interpolate(id(rowBasis), rhsWrapper, values_, dirichletNodes_);
+          interpolate(id(rowBasis), rhs, values_, dirichletNodes_);
         });
 
       Dune::Hybrid::ifElse(std::is_same<RangeType_t<typename ColBasis::LocalView::Tree>, Range>{},
         [&](auto id) {
-          auto solutionWrapper = hierarchicVectorWrapper(solution.vector());
-          interpolate(id(colBasis), solutionWrapper, values_, dirichletNodes_);
+          interpolate(id(colBasis), solution, values_, dirichletNodes_);
         });
 
       // subtract columns of dirichlet nodes from rhs

test/DOFVectorTest.cpp

+#include "config.h"
+
 #include <dune/common/filledarray.hh>
 #include <dune/grid/yaspgrid.hh>
+#include <dune/functions/backends/concepts.hh>
 #include <dune/functions/functionspacebases/compositebasis.hh>
 #include <dune/functions/functionspacebases/powerbasis.hh>
 #include <dune/functions/functionspacebases/lagrangebasis.hh>
@@ -23,10 +26,15 @@ void test_dofvector(B const& basis, DOFVector<B,T>& vec)
   auto m1 = std::max_element(std::begin(vec.vector()), std::end(vec.vector()));
   AMDIS_TEST( *m0 == T(0) );
   AMDIS_TEST( *m1 == T(1) );
+
+  // DOFVector models the concept of a VectorBackend in Dune::Functions
+  static_assert(Dune::models<Dune::Functions::Concept::VectorBackend<B>, decltype(vec)>(), "");
 }
 
-int main()
+int main(int argc, char** argv)
 {
+  Dune::MPIHelper::instance(argc, argv);
+
   // create grid
   Dune::FieldVector<double, 2> L; L = 1.0;
   auto s = Dune::filledArray<2>(1);