Cov2f.h

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// AUTOMATICALLY GENERATED FILE - DO NOT EDIT
 
#ifndef EDM4EIC_Cov2f_H
#define EDM4EIC_Cov2f_H
 
#include <ostream>
 
#if defined(PODIO_JSON_OUTPUT) && !defined(__CLING__)
#include "nlohmann/json_fwd.hpp"
#endif
 
namespace edm4eic {
 
 
/** @class Cov2f
 *  
 *  @author: 
 */
class Cov2f {
public:
  float xx{};
  float yy{};
  float xy{};
 
 Cov2f() : xx{0}, yy{0}, xy{0} {}
 Cov2f(double vx, double vy, double vxy = 0)
 : xx{static_cast<float>(vx)}, yy{static_cast<float>(vy)}, xy{static_cast<float>(vxy)} {}
 float operator()(unsigned i, unsigned j) const {
 // diagonal
 if (i == j) {
 return *(&xx + i);
 }
 // off-diagonal
 // we have as options (0, 1), and (1, 0)
 // note that, starting from xy, we find the correct element at (i+j+1)/2)
 return *(&xy + (i + j + 1) / 2);
 }
 
 
};
 
std::ostream& operator<<(std::ostream& o, const Cov2f& value);
 
#if defined(PODIO_JSON_OUTPUT) && !defined(__CLING__)
void to_json(nlohmann::json& j, const Cov2f& value);
#endif
 
namespace v850 {
using Cov2f = edm4eic::Cov2f;
} // namespace v850
 
 
} // namespace edm4eic
 
 
#endif