misc: apply CV_OVERRIDE/CV_FINAL

modules/cudalegacy/src/calib3d.cpp

@@ -160,7 +160,7 @@ namespace
                   num_points(num_points_), subset_size(subset_size_), rot_matrices(rot_matrices_),
                   transl_vectors(transl_vectors_) {}
 
-        void operator()(const Range& range) const
+        void operator()(const Range& range) const CV_OVERRIDE
         {
             // Input data for generation of the current hypothesis
             std::vector<int> subset_indices(subset_size);

samples/cpp/tutorial_code/core/how_to_use_OpenCV_parallel_for_/how_to_use_OpenCV_parallel_for_.cpp

@@ -42,7 +42,7 @@ public:
     {
     }
 
-    virtual void operator ()(const Range& range) const
+    virtual void operator ()(const Range& range) const CV_OVERRIDE
     {
         for (int r = range.start; r < range.end; r++)
         {