You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
27 lines
775 B
27 lines
775 B
#include <Eigen/Core>
|
|
#include <iostream>
|
|
using namespace Eigen;
|
|
using namespace std;
|
|
|
|
template<typename Derived>
|
|
Eigen::VectorBlock<Derived>
|
|
segmentFromRange(MatrixBase<Derived>& v, int start, int end)
|
|
{
|
|
return Eigen::VectorBlock<Derived>(v.derived(), start, end-start);
|
|
}
|
|
|
|
template<typename Derived>
|
|
const Eigen::VectorBlock<const Derived>
|
|
segmentFromRange(const MatrixBase<Derived>& v, int start, int end)
|
|
{
|
|
return Eigen::VectorBlock<const Derived>(v.derived(), start, end-start);
|
|
}
|
|
|
|
int main(int, char**)
|
|
{
|
|
Matrix<int,1,6> v; v << 1,2,3,4,5,6;
|
|
cout << segmentFromRange(2*v, 2, 4) << endl; // calls the const version
|
|
segmentFromRange(v, 1, 3) *= 5; // calls the non-const version
|
|
cout << "Now the vector v is:" << endl << v << endl;
|
|
return 0;
|
|
}
|