Optionally compressed gradient index. More...

#include <hist_util.h>

Public Member Functions
template<typename T >
CompressBin< T >	MakeCompressor () const

	Index (Index const &i)=delete

Index &	operator= (Index const &i)=delete

	Index (Index &&i)=delete

Index &	operator= (Index &&i)=default
	Move assignment for lazy initialization.

	Index (Span< std::uint8_t > data, BinTypeSize bin_size)
	Construct the index from data.

uint32_t	operator[] (size_t i) const

BinTypeSize	GetBinTypeSize () const

template<typename T >
T const *	data () const

template<typename T >
T *	data ()

std::uint32_t const *	Offset () const

std::size_t	OffsetSize () const

std::size_t	Size () const

void	SetBinOffset (std::vector< uint32_t > const &cut_ptrs)

auto	begin () const

auto	end () const

auto	begin ()

auto	end ()

Detailed Description

Optionally compressed gradient index.

The compression works only with dense data.

The main body of construction code is in gradient_index.cc, this struct is only a view class.

Constructor & Destructor Documentation

inline

Construct the index from data.

Parameters

data	Storage for compressed histogram bin.
bin_size	Number of bytes for each bin.

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