Eigen::internal::log_2_impl< BitsType > Struct Template Reference

#include <MathFunctions.h>

Static Public Member Functions
static EIGEN_DEVICE_FUNC int	run_ceil (const BitsType &x)
static EIGEN_DEVICE_FUNC int	run_floor (const BitsType &x)

Static Public Attributes
static constexpr int	kTotalBits = sizeof(BitsType) * CHAR_BIT

Member Function Documentation

run_ceil()

template<typename BitsType >

static EIGEN_DEVICE_FUNC int Eigen::internal::log_2_impl< BitsType >::run_ceil ( const BitsType &  x )

inlinestatic

                                                                  {
    const int n = kTotalBits - clz(x);
    bool power_of_two = (x & (x - 1)) == 0;
    return x == 0 ? 0 : power_of_two ? (n - 1) : n;
  }

run_floor()

template<typename BitsType >

static EIGEN_DEVICE_FUNC int Eigen::internal::log_2_impl< BitsType >::run_floor ( const BitsType &  x )

inlinestatic

                                                                   {
    const int n = kTotalBits - clz(x);
    return x == 0 ? 0 : n - 1;
  }

Member Data Documentation

kTotalBits

template<typename BitsType >

constexpr int Eigen::internal::log_2_impl< BitsType >::kTotalBits = sizeof(BitsType) * CHAR_BIT

staticconstexpr

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

• MathFunctions.h