diff options
Diffstat (limited to 'Eigen/src/Core/functors/UnaryFunctors.h')
| -rw-r--r-- | Eigen/src/Core/functors/UnaryFunctors.h | 167 |
1 files changed, 152 insertions, 15 deletions
diff --git a/Eigen/src/Core/functors/UnaryFunctors.h b/Eigen/src/Core/functors/UnaryFunctors.h index e630acc38..7ba0abedc 100644 --- a/Eigen/src/Core/functors/UnaryFunctors.h +++ b/Eigen/src/Core/functors/UnaryFunctors.h @@ -41,7 +41,7 @@ struct functor_traits<scalar_opposite_op<Scalar> > template<typename Scalar> struct scalar_abs_op { EIGEN_EMPTY_STRUCT_CTOR(scalar_abs_op) typedef typename NumTraits<Scalar>::Real result_type; - EIGEN_DEVICE_FUNC EIGEN_STRONG_INLINE const result_type operator() (const Scalar& a) const { using std::abs; return abs(a); } + EIGEN_DEVICE_FUNC EIGEN_STRONG_INLINE const result_type operator() (const Scalar& a) const { return numext::abs(a); } template<typename Packet> EIGEN_DEVICE_FUNC EIGEN_STRONG_INLINE const Packet packetOp(const Packet& a) const { return internal::pabs(a); } @@ -73,7 +73,7 @@ template<typename Scalar, typename=void> struct abs_knowing_score EIGEN_EMPTY_STRUCT_CTOR(abs_knowing_score) typedef typename NumTraits<Scalar>::Real result_type; template<typename Score> - EIGEN_DEVICE_FUNC EIGEN_STRONG_INLINE const result_type operator() (const Scalar& a, const Score&) const { using std::abs; return abs(a); } + EIGEN_DEVICE_FUNC EIGEN_STRONG_INLINE const result_type operator() (const Scalar& a, const Score&) const { return numext::abs(a); } }; template<typename Scalar> struct abs_knowing_score<Scalar, typename scalar_score_coeff_op<Scalar>::Score_is_abs> { @@ -230,7 +230,7 @@ struct functor_traits<scalar_imag_ref_op<Scalar> > */ template<typename Scalar> struct scalar_exp_op { EIGEN_EMPTY_STRUCT_CTOR(scalar_exp_op) - EIGEN_DEVICE_FUNC inline const Scalar operator() (const Scalar& a) const { using std::exp; return exp(a); } + EIGEN_DEVICE_FUNC inline const Scalar operator() (const Scalar& a) const { return numext::exp(a); } template <typename Packet> EIGEN_DEVICE_FUNC inline Packet packetOp(const Packet& a) const { return internal::pexp(a); } }; @@ -246,7 +246,7 @@ struct functor_traits<scalar_exp_op<Scalar> > */ template<typename Scalar> struct scalar_log_op { EIGEN_EMPTY_STRUCT_CTOR(scalar_log_op) - EIGEN_DEVICE_FUNC inline const Scalar operator() (const Scalar& a) const { using std::log; return log(a); } + EIGEN_DEVICE_FUNC inline const Scalar operator() (const Scalar& a) const { return numext::log(a); } template <typename Packet> EIGEN_DEVICE_FUNC inline Packet packetOp(const Packet& a) const { return internal::plog(a); } }; @@ -276,7 +276,7 @@ struct functor_traits<scalar_log10_op<Scalar> > */ template<typename Scalar> struct scalar_sqrt_op { EIGEN_EMPTY_STRUCT_CTOR(scalar_sqrt_op) - EIGEN_DEVICE_FUNC inline const Scalar operator() (const Scalar& a) const { using std::sqrt; return sqrt(a); } + EIGEN_DEVICE_FUNC inline const Scalar operator() (const Scalar& a) const { return numext::sqrt(a); } template <typename Packet> EIGEN_DEVICE_FUNC inline Packet packetOp(const Packet& a) const { return internal::psqrt(a); } }; @@ -294,7 +294,7 @@ struct functor_traits<scalar_sqrt_op<Scalar> > */ template<typename Scalar> struct scalar_rsqrt_op { EIGEN_EMPTY_STRUCT_CTOR(scalar_rsqrt_op) - EIGEN_DEVICE_FUNC inline const Scalar operator() (const Scalar& a) const { using std::sqrt; return Scalar(1)/sqrt(a); } + EIGEN_DEVICE_FUNC inline const Scalar operator() (const Scalar& a) const { return Scalar(1)/numext::sqrt(a); } template <typename Packet> EIGEN_DEVICE_FUNC inline Packet packetOp(const Packet& a) const { return internal::prsqrt(a); } }; @@ -403,6 +403,143 @@ 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; + EIGEN_DEVICE_FUNC 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 psi, the derivative of lgamma of a scalar. + * \sa class CwiseUnaryOp, Cwise::digamma() + */ +template<typename Scalar> struct scalar_digamma_op { + EIGEN_EMPTY_STRUCT_CTOR(scalar_digamma_op) + EIGEN_DEVICE_FUNC inline const Scalar operator() (const Scalar& a) const { + using numext::digamma; return digamma(a); + } + typedef typename packet_traits<Scalar>::type Packet; + EIGEN_DEVICE_FUNC inline Packet packetOp(const Packet& a) const { return internal::pdigamma(a); } +}; +template<typename Scalar> +struct functor_traits<scalar_digamma_op<Scalar> > +{ + enum { + // Guesstimate + Cost = 10 * NumTraits<Scalar>::MulCost + 5 * NumTraits<Scalar>::AddCost, + PacketAccess = packet_traits<Scalar>::HasDiGamma + }; +}; + +/** \internal + * \brief Template functor to compute the Riemann Zeta function of two arguments. + * \sa class CwiseUnaryOp, Cwise::zeta() + */ +template<typename Scalar> struct scalar_zeta_op { + EIGEN_EMPTY_STRUCT_CTOR(scalar_zeta_op) + EIGEN_DEVICE_FUNC inline const Scalar operator() (const Scalar& x, const Scalar& q) const { + using numext::zeta; return zeta(x, q); + } + typedef typename packet_traits<Scalar>::type Packet; + EIGEN_DEVICE_FUNC inline Packet packetOp(const Packet& x, const Packet& q) const { return internal::pzeta(x, q); } +}; +template<typename Scalar> +struct functor_traits<scalar_zeta_op<Scalar> > +{ + enum { + // Guesstimate + Cost = 10 * NumTraits<Scalar>::MulCost + 5 * NumTraits<Scalar>::AddCost, + PacketAccess = packet_traits<Scalar>::HasZeta + }; +}; + +/** \internal + * \brief Template functor to compute the polygamma function. + * \sa class CwiseUnaryOp, Cwise::polygamma() + */ +template<typename Scalar> struct scalar_polygamma_op { + EIGEN_EMPTY_STRUCT_CTOR(scalar_polygamma_op) + EIGEN_DEVICE_FUNC inline const Scalar operator() (const Scalar& n, const Scalar& x) const { + using numext::polygamma; return polygamma(n, x); + } + typedef typename packet_traits<Scalar>::type Packet; + EIGEN_DEVICE_FUNC inline Packet packetOp(const Packet& n, const Packet& x) const { return internal::ppolygamma(n, x); } +}; +template<typename Scalar> +struct functor_traits<scalar_polygamma_op<Scalar> > +{ + enum { + // Guesstimate + Cost = 10 * NumTraits<Scalar>::MulCost + 5 * NumTraits<Scalar>::AddCost, + PacketAccess = packet_traits<Scalar>::HasPolygamma + }; +}; + +/** \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; + EIGEN_DEVICE_FUNC 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; + EIGEN_DEVICE_FUNC 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 +559,7 @@ struct functor_traits<scalar_atan_op<Scalar> > }; }; + /** \internal * \brief Template functor to compute the tanh of a scalar * \sa class CwiseUnaryOp, ArrayBase::tanh() @@ -572,7 +710,7 @@ struct functor_traits<scalar_floor_op<Scalar> > template<typename Scalar> struct scalar_ceil_op { EIGEN_EMPTY_STRUCT_CTOR(scalar_ceil_op) EIGEN_DEVICE_FUNC EIGEN_STRONG_INLINE const Scalar operator() (const Scalar& a) const { return numext::ceil(a); } - typedef typename packet_traits<Scalar>::type Packet; + template <typename Packet> EIGEN_DEVICE_FUNC inline Packet packetOp(const Packet& a) const { return internal::pceil(a); } }; template<typename Scalar> @@ -660,10 +798,10 @@ struct functor_traits<scalar_boolean_not_op<Scalar> > { * \sa class CwiseUnaryOp, Cwise::sign() */ template<typename Scalar,bool iscpx=(NumTraits<Scalar>::IsComplex!=0) > struct scalar_sign_op; -template<typename Scalar> +template<typename Scalar> struct scalar_sign_op<Scalar,false> { EIGEN_EMPTY_STRUCT_CTOR(scalar_sign_op) - EIGEN_DEVICE_FUNC inline const Scalar operator() (const Scalar& a) const + EIGEN_DEVICE_FUNC inline const Scalar operator() (const Scalar& a) const { return Scalar( (a>Scalar(0)) - (a<Scalar(0)) ); } @@ -671,17 +809,16 @@ struct scalar_sign_op<Scalar,false> { //template <typename Packet> //EIGEN_DEVICE_FUNC inline Packet packetOp(const Packet& a) const { return internal::psign(a); } }; -template<typename Scalar> +template<typename Scalar> struct scalar_sign_op<Scalar,true> { EIGEN_EMPTY_STRUCT_CTOR(scalar_sign_op) - EIGEN_DEVICE_FUNC inline const Scalar operator() (const Scalar& a) const + EIGEN_DEVICE_FUNC inline const Scalar operator() (const Scalar& a) const { - using std::abs; typedef typename NumTraits<Scalar>::Real real_type; - real_type aa = abs(a); + real_type aa = numext::abs(a); if (aa==0) - return Scalar(0); - aa = 1./aa; + return Scalar(0); + aa = 1./aa; return Scalar(real(a)*aa, imag(a)*aa ); } //TODO |