Use using in cpp code

dune/perftool/common/opcounter.hh

@@ -28,7 +28,7 @@ namespace oc {
 
   public:
 
-    typedef std::size_t size_type;
+    using size_type = std::size_t;
 
     using value_type = F;
 

dune/perftool/localbasiscache.hh

@@ -35,16 +35,16 @@ class CacheReturnProxy
 template<typename FS>
 class LocalBasisCacheWithoutReferences
 {
-  typedef typename FS::Traits::FiniteElementMap::Traits::FiniteElementType::Traits::LocalBasisType LocalBasisType;
-  typedef typename Dune::PDELab::LocalBasisCache<LocalBasisType> Cache;
-  typedef typename LocalBasisType::Traits::DomainFieldType DomainFieldType;
-  typedef typename LocalBasisType::Traits::DomainType DomainType;
-  typedef typename LocalBasisType::Traits::RangeType RangeType;
-  typedef typename LocalBasisType::Traits::JacobianType JacobianType;
+  using LocalBasisType = typename FS::Traits::FiniteElementMap::Traits::FiniteElementType::Traits::LocalBasisType;
+  using Cache = typename Dune::PDELab::LocalBasisCache<LocalBasisType>;
+  using DomainFieldType = typename LocalBasisType::Traits::DomainFieldType;
+  using DomainType = typename LocalBasisType::Traits::DomainType;
+  using RangeType = typename LocalBasisType::Traits::RangeType;
+  using JacobianType = typename LocalBasisType::Traits::JacobianType;
 
   public:
-  typedef CacheReturnProxy<RangeType> FunctionReturnType;
-  typedef CacheReturnProxy<JacobianType> JacobianReturnType;
+  using FunctionReturnType = CacheReturnProxy<RangeType>;
+  using JacobianReturnType = CacheReturnProxy<JacobianType>;
 
   FunctionReturnType evaluateFunction(const DomainType& position, const LocalBasisType& localbasis) const
   {

dune/perftool/matrixfree.hh

@@ -10,7 +10,7 @@ namespace Dune{
 
     template <typename GO, typename V>
     void solveMatrixFree(GO& go, V& x ){
-      typedef Dune::PDELab::OnTheFlyOperator<V,V,GO> ISTLOnTheFlyOperator;
+      using ISTLOnTheFlyOperator = Dune::PDELab::OnTheFlyOperator<V,V,GO>;
       ISTLOnTheFlyOperator opb(go);
       Dune::Richardson<V,V> richardson(1.0);
       Dune::BiCGSTABSolver<V> solverb(opb,richardson,1E-10,5000,2);