diff options
Diffstat (limited to 'doc/examples/Tutorial_BlockOperations_block_assignment.cpp')
-rw-r--r-- | doc/examples/Tutorial_BlockOperations_block_assignment.cpp | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/doc/examples/Tutorial_BlockOperations_block_assignment.cpp b/doc/examples/Tutorial_BlockOperations_block_assignment.cpp new file mode 100644 index 000000000..0419a500f --- /dev/null +++ b/doc/examples/Tutorial_BlockOperations_block_assignment.cpp @@ -0,0 +1,31 @@ +#include <Eigen/Dense> +#include <iostream> + +using namespace std; +using namespace Eigen; + +int main() +{ + MatrixXf m(3,3), n(2,2); + + m << 1,2,3, + 4,5,6, + 7,8,9; + + // assignment through a block operation, + // block as rvalue + n = m.block(0,0,2,2); + + //print n + cout << "n = " << endl << n << endl << endl; + + + n << 1,1, + 1,1; + + // block as lvalue + m.block(0,0,2,2) = n; + + //print m + cout << "m = " << endl << m << endl; +} |