Hi,

I am trying to write a function that can receive either ColXpr or RowXpr objects by reference. How can I declare such function? When I use the code below, I get a message:

error: no instance of function template "MyFunct" matches the argument list

Thanks

P.S. I'm using Eigen 2.0.15 (sorry, I cannot use use Eigen 3)

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template <typename ScalarType>
ScalarType MyFunct(Eigen::Matrix<ScalarType, Eigen::Dynamic, Eigen::Dynamic>::Block &Values)
{
...
}

...
Eigen::Matrix<ScalarType, Eigen::Dynamic, Eigen::Dynamic> a_matrix;
...
ScalarType result = MyFunct<ScalarType>(a_matrix.row(i));


simply template it to accept any eigen expression:

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template<typename Derived> typename Derived::Scalar MyFunct(const Eigen::MatrixBase<Derived>& Values);


ggael wrote:simply template it to accept any eigen expression:

Code: Select all

template<typename Derived> typename Derived::Scalar MyFunct(const Eigen::MatrixBase<Derived>& Values);


Thanks