ground/gcs/src/libs/eigen/doc/snippets/TopicAliasing_block.cpp

   1 MatrixXi mat(3,3);
   2 mat << 1, 2, 3,   4, 5, 6,   7, 8, 9;
   3 cout << "Here is the matrix mat:\n" << mat << endl;
   4
   5 // This assignment shows the aliasing problem
   6 mat.bottomRightCorner(2,2) = mat.topLeftCorner(2,2);
   7 cout << "After the assignment, mat = \n" << mat << endl;