| // SPDX-FileCopyrightText: The Eigen Authors |
| // SPDX-License-Identifier: MPL-2.0 |
| |
| #include <Eigen/Dense> |
| #include <iostream> |
| |
| int main() { |
| Eigen::Array22f m; |
| m << 1, 2, 3, 4; |
| Eigen::Array44f a = Eigen::Array44f::Constant(0.6); |
| std::cout << "Here is the array a:\n" << a << "\n\n"; |
| a.block<2, 2>(1, 1) = m; |
| std::cout << "Here is now a with m copied into its central 2x2 block:\n" << a << "\n\n"; |
| a.block(0, 0, 2, 3) = a.block(2, 1, 2, 3); |
| std::cout << "Here is now a with bottom-right 2x3 block copied into top-left 2x3 block:\n" << a << "\n\n"; |
| } |
