Function pzero

include/Eigen/src/Core/GenericPacketMath.h:422–424

/** \internal \returns packet of zeros */
template <typename Packet>
EIGEN_DEVICE_FUNC inline Packet pzero(const Packet& a) {
  return pzero_impl<Packet>::run(a);
}

/** \internal \returns a <= b as a bit mask */
template <typename Packet>