on the page http://eigen.tuxfamily.org/dox-devel/To ... Types.html

it talks about how to pass Eigen type into functions. However I cannot find EIGEN_REF_TO_TEMPORARY after short grep. Anyone know where it is?

ok, looks like the doc has not been automatically regenerated yet. This macro has been removed. Use "const &" instead.

ggael wrote:ok, looks like the doc has not been automatically regenerated yet. This macro has been removed. Use "const &" instead.

Thanks for the update. Though I dont understand the difference between

const MatrixBase<Derived>& x

and

MatrixBase<OtherDerived> const &

I always thought that they are equivalent and mean it is passing a reference to a constant object.