minor bugfix: stack variable wasn't initialized

[[Imported from SVN: r3317]]

dune/solvers/common/permutationmanager.hh

@@ -308,18 +308,16 @@ public:
          int block[max_size];
          int block_counter = -1;
 
-         CoordinateType buffer_coordinate;
+         // Initialize to a coordinate that doesn't occur in the grid
+         CoordinateType buffer_coordinate(std::numeric_limits<double>::infinity());
          for( int i = 0; i < max_size ; ++i )
           {
 
             bool coordinates_partially_equal = true;
             for ( int d = 0; d < dim ; ++d )
               {
-                if (!(d==axis_of_anisotropy_))
-                 {
-                  if ( !(buffer_coordinate[d] == node_list_[i].get_global_coordinate()[d]) )
-                    { coordinates_partially_equal = false; }
-                 }
+                if (d!=axis_of_anisotropy_ and buffer_coordinate[d] != node_list_[i].get_global_coordinate()[d] )
+                      coordinates_partially_equal = false;
               }
 
             if ( coordinates_partially_equal == true )