I was wondering how to deallocate the memory used in Eigen. For example if I create the following matrix:

MatrixXd test = MatrixXd(1000,1000);

How would I free the memory allocated to test? Thanks!

The memory will be automatically freed when "test" will be deleted, e.g.:

Code: Select all

void foo() {
  ....
  {
      MatrixXd test = MatrixXd(1000,1000);
      ....
   }
   // at this stage test has been automatically deleted and freed
   ....
}


You can also call test.resize(0,0);