Hello all,

We have a series function in this form -> void func(Eigen::MatrixXd&)
Now we have to connect these function to another library that gives us Eigen::MatrixXd objects.

Thus we want to convert matrices that the library gives us to vectors and call our functions.
Is there any way to do this, without changing interfaces and copying data.

Thanks.

I don't get it, you get Eigen::MatrixXd and want to call functions taking Eigen::MatrixXd& arguments, so what's the problem???