libigl_Martin/include/igl/quadric_binary_plus_operator.cpp

#include "quadric_binary_plus_operator.h"

IGL_INLINE std::tuple< Eigen::MatrixXd, Eigen::RowVectorXd, double> 
  igl::operator+(
    const std::tuple< Eigen::MatrixXd, Eigen::RowVectorXd, double>  & a, 
    const std::tuple< Eigen::MatrixXd, Eigen::RowVectorXd, double>  & b)
{
  std::tuple<
    Eigen::MatrixXd,
    Eigen::RowVectorXd,
    double>  c;
  std::get<0>(c) = (std::get<0>(a) + std::get<0>(b)).eval();
  std::get<1>(c) = (std::get<1>(a) + std::get<1>(b)).eval();
  std::get<2>(c) = (std::get<2>(a) + std::get<2>(b));
  return c;
}