diff options
Diffstat (limited to 'Eigen/src/Core/functors/UnaryFunctors.h')
-rw-r--r-- | Eigen/src/Core/functors/UnaryFunctors.h | 72 |
1 files changed, 72 insertions, 0 deletions
diff --git a/Eigen/src/Core/functors/UnaryFunctors.h b/Eigen/src/Core/functors/UnaryFunctors.h index e630acc38..6891cfdda 100644 --- a/Eigen/src/Core/functors/UnaryFunctors.h +++ b/Eigen/src/Core/functors/UnaryFunctors.h @@ -403,6 +403,77 @@ struct functor_traits<scalar_asin_op<Scalar> > }; }; + +/** \internal + * \brief Template functor to compute the natural log of the absolute + * value of Gamma of a scalar + * \sa class CwiseUnaryOp, Cwise::lgamma() + */ +template<typename Scalar> struct scalar_lgamma_op { + EIGEN_EMPTY_STRUCT_CTOR(scalar_lgamma_op) + EIGEN_DEVICE_FUNC inline const Scalar operator() (const Scalar& a) const { + using numext::lgamma; return lgamma(a); + } + typedef typename packet_traits<Scalar>::type Packet; + inline Packet packetOp(const Packet& a) const { return internal::plgamma(a); } +}; +template<typename Scalar> +struct functor_traits<scalar_lgamma_op<Scalar> > +{ + enum { + // Guesstimate + Cost = 10 * NumTraits<Scalar>::MulCost + 5 * NumTraits<Scalar>::AddCost, + PacketAccess = packet_traits<Scalar>::HasLGamma + }; +}; + +/** \internal + * \brief Template functor to compute the Gauss error function of a + * scalar + * \sa class CwiseUnaryOp, Cwise::erf() + */ +template<typename Scalar> struct scalar_erf_op { + EIGEN_EMPTY_STRUCT_CTOR(scalar_erf_op) + EIGEN_DEVICE_FUNC inline const Scalar operator() (const Scalar& a) const { + using numext::erf; return erf(a); + } + typedef typename packet_traits<Scalar>::type Packet; + inline Packet packetOp(const Packet& a) const { return internal::perf(a); } +}; +template<typename Scalar> +struct functor_traits<scalar_erf_op<Scalar> > +{ + enum { + // Guesstimate + Cost = 10 * NumTraits<Scalar>::MulCost + 5 * NumTraits<Scalar>::AddCost, + PacketAccess = packet_traits<Scalar>::HasErf + }; +}; + +/** \internal + * \brief Template functor to compute the Complementary Error Function + * of a scalar + * \sa class CwiseUnaryOp, Cwise::erfc() + */ +template<typename Scalar> struct scalar_erfc_op { + EIGEN_EMPTY_STRUCT_CTOR(scalar_erfc_op) + EIGEN_DEVICE_FUNC inline const Scalar operator() (const Scalar& a) const { + using numext::erfc; return erfc(a); + } + typedef typename packet_traits<Scalar>::type Packet; + inline Packet packetOp(const Packet& a) const { return internal::perfc(a); } +}; +template<typename Scalar> +struct functor_traits<scalar_erfc_op<Scalar> > +{ + enum { + // Guesstimate + Cost = 10 * NumTraits<Scalar>::MulCost + 5 * NumTraits<Scalar>::AddCost, + PacketAccess = packet_traits<Scalar>::HasErfc + }; +}; + + /** \internal * \brief Template functor to compute the atan of a scalar * \sa class CwiseUnaryOp, ArrayBase::atan() @@ -422,6 +493,7 @@ struct functor_traits<scalar_atan_op<Scalar> > }; }; + /** \internal * \brief Template functor to compute the tanh of a scalar * \sa class CwiseUnaryOp, ArrayBase::tanh() |