| // SPDX-FileCopyrightText: The Eigen Authors | |
| // SPDX-License-Identifier: MPL-2.0 | |
| MatrixXi mat(3, 3); | |
| mat << 1, 2, 3, 4, 5, 6, 7, 8, 9; | |
| cout << "Here is the matrix mat:\n" << mat << endl; | |
| // The eval() solves the aliasing problem | |
| mat.bottomRightCorner(2, 2) = mat.topLeftCorner(2, 2).eval(); | |
| cout << "After the assignment, mat = \n" << mat << endl; |