TemplateKeyword_simple.cpp

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#include <Eigen/Dense>
#include <iostream>

using namespace Eigen;

void copyUpperTriangularPart(MatrixXf& dst, const MatrixXf& src)
{
  dst.triangularView<Upper>() = src.triangularView<Upper>();
}

int main()
{
  MatrixXf m1 = MatrixXf::Ones(4,4);
  MatrixXf m2 = MatrixXf::Random(4,4);
  std::cout << "m2 before copy:" << std::endl;
  std::cout << m2 << std::endl << std::endl;
  copyUpperTriangularPart(m2, m1);
  std::cout << "m2 after copy:" << std::endl;
  std::cout << m2 << std::endl << std::endl;
}