Use more 'override'

dune/solvers/transferoperators/truncatedcompressedmgtransfer.hh

@@ -46,13 +46,13 @@ public:
     using Base::Base;
 
     /** \brief Restrict level fL of f and store the result in level cL of t */
-    void restrict(const VectorType& f, VectorType &t) const;
+    void restrict(const VectorType& f, VectorType &t) const override;
 
     /** \brief Prolong level cL of f and store the result in level fL of t */
-    void prolong(const VectorType& f, VectorType &t) const;
+    void prolong(const VectorType& f, VectorType &t) const override;
 
     /** \brief Galerkin assemble a coarse stiffness matrix */
-    void galerkinRestrict(const MatrixType& fineMat, MatrixType& coarseMat) const;
+    void galerkinRestrict(const MatrixType& fineMat, MatrixType& coarseMat) const override;
 };