Use normSquared()

[[Imported from SVN: r11791]]

dune/solvers/norms/sumnorm.hh

@@ -19,10 +19,10 @@ class SumNorm: public Norm<VectorType>
     //! Compute the norm of the given vector
 		double operator()(const VectorType &v) const
 		{
-			double r1 = norm1(v);
-			double r2 = norm2(v);
-			
-			return std::sqrt(alpha1 * r1 * r1 + alpha2 * r2 *r2);
+			double r1 = norm1.normSquared(v);
+			double r2 = norm2.normSquared(v);
+
+			return std::sqrt(alpha1 * r1 + alpha2 * r2);
 		}
 
     //! Compute the norm of the difference of two vectors