Eigen::internal::unary_pow::exponent_helper< ScalarExponent, IsInteger > Struct Template Reference

#include <GenericPacketMathFunctions.h>

Public Types
using	safe_abs_type = ScalarExponent

Static Public Member Functions
static EIGEN_DEVICE_FUNC EIGEN_STRONG_INLINE ScalarExponent	safe_abs (const ScalarExponent &exp)
static EIGEN_DEVICE_FUNC EIGEN_STRONG_INLINE bool	is_odd (const ScalarExponent &exp)
static EIGEN_DEVICE_FUNC EIGEN_STRONG_INLINE ScalarExponent	floor_div_two (const ScalarExponent &exp)

Static Public Attributes
static constexpr ScalarExponent	one_half = ScalarExponent(0.5)

Member Typedef Documentation

safe_abs_type

template<typename ScalarExponent , bool IsInteger = NumTraits<ScalarExponent>::IsInteger>

using Eigen::internal::unary_pow::exponent_helper< ScalarExponent, IsInteger >::safe_abs_type = ScalarExponent

Member Function Documentation

floor_div_two()

template<typename ScalarExponent , bool IsInteger = NumTraits<ScalarExponent>::IsInteger>

static EIGEN_DEVICE_FUNC EIGEN_STRONG_INLINE ScalarExponent Eigen::internal::unary_pow::exponent_helper< ScalarExponent, IsInteger >::floor_div_two ( const ScalarExponent &  exp )

inlinestatic

                                                                                                       {
    ScalarExponent exp_div_2 = exp * one_half;
    return numext::floor(exp_div_2);
  }

References Eigen::bfloat16_impl::exp(), Eigen::numext::floor(), and Eigen::internal::unary_pow::exponent_helper< ScalarExponent, IsInteger >::one_half.

is_odd()

template<typename ScalarExponent , bool IsInteger = NumTraits<ScalarExponent>::IsInteger>

static EIGEN_DEVICE_FUNC EIGEN_STRONG_INLINE bool Eigen::internal::unary_pow::exponent_helper< ScalarExponent, IsInteger >::is_odd ( const ScalarExponent &  exp )

inlinestatic

                                                                                      {
    eigen_assert(((numext::isfinite)(exp) && exp == numext::floor(exp)) && "exp must be an integer");
    ScalarExponent exp_div_2 = exp * one_half;
    ScalarExponent floor_exp_div_2 = numext::floor(exp_div_2);
    return exp_div_2 != floor_exp_div_2;
  }

References eigen_assert, Eigen::bfloat16_impl::exp(), Eigen::numext::floor(), Eigen::numext::isfinite(), and Eigen::internal::unary_pow::exponent_helper< ScalarExponent, IsInteger >::one_half.

safe_abs()

template<typename ScalarExponent , bool IsInteger = NumTraits<ScalarExponent>::IsInteger>

static EIGEN_DEVICE_FUNC EIGEN_STRONG_INLINE ScalarExponent Eigen::internal::unary_pow::exponent_helper< ScalarExponent, IsInteger >::safe_abs ( const ScalarExponent &  exp )

inlinestatic

                                                                                                  {
    return numext::abs(exp);
  }

References Eigen::numext::abs(), and Eigen::bfloat16_impl::exp().

Member Data Documentation

one_half

template<typename ScalarExponent , bool IsInteger = NumTraits<ScalarExponent>::IsInteger>

constexpr ScalarExponent Eigen::internal::unary_pow::exponent_helper< ScalarExponent, IsInteger >::one_half = ScalarExponent(0.5)

staticconstexpr

Referenced by Eigen::internal::unary_pow::exponent_helper< ScalarExponent, IsInteger >::floor_div_two(), and Eigen::internal::unary_pow::exponent_helper< ScalarExponent, IsInteger >::is_odd().

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The documentation for this struct was generated from the following file:

• GenericPacketMathFunctions.h