Re: [eigen] Passing Eigen::Map types to functions that take Eigen types

[Christoph Hertzberg <chtz@xxxxxxxxxxxxxxxxxxxxxxxx>]

On 01.07.2015 14:25, Martin Felis wrote:
> Is there any way to avoid this to allow for thin wrappers à la do_work_ptr?

Have a look at the Ref class:
http://eigen.tuxfamily.org/dox-devel/classEigen_1_1Ref.html

Your function should look like this then
void do_work(Eigen::Ref<Eigen::MatrixXd> mat) {
  // remaining code stays the same
}

You can then pass MatrixXd, Maps and Blocks with very minor overhead to 
your function.

Christoph


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Dipl.-Inf., Dipl.-Math. Christoph Hertzberg
Cartesium 0.049
Universität Bremen
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