Function paddsub

include/Eigen/Eigen/src/Core/GenericPacketMath.h:663–666

/** \internal \returns the addsub value of \a a,b */
template<typename Packet> EIGEN_DEVICE_FUNC inline Packet
paddsub(const Packet& a, const Packet& b) {
  return pselect(peven_mask(a), padd(a, b), psub(a, b));
 }

/** \internal \returns the phase angle of \a a */
template<typename Packet> EIGEN_DEVICE_FUNC inline Packet