ByteEntries Class Reference

the entries of a pattern table, one byte each: the distance itself More...

#include <PBeFS/astar/PatternDatabase.h>

Public Member Functions
int	value (std::uint64_t r, int) const noexcept
	the value of the rank r, whose placement has Manhattan distance m
std::uint64_t	entries (void) const noexcept
	the number of the entries
std::size_t	bytes (void) const noexcept
	the bytes of the entries
std::vector< std::uint8_t >	payload (void) const
	the bytes written in a file

Static Public Member Functions
template<class M>
static ByteEntries	encode (const std::vector< std::uint8_t > &h, M &&, unsigned=1)
	the encoding of the distances h
static ByteEntries	decode (std::vector< std::uint8_t > data, std::uint64_t n, unsigned=1)
	the encoding of n entries read from a file

Static Public Attributes
static constexpr std::uint32_t	code = 1
	the code in a file
static constexpr const char *	name = "byte"
	the name
static constexpr bool	relative = false
	absolute values

Detailed Description

the entries of a pattern table, one byte each: the distance itself

Every encoding has the code and the name written in the files, tells whether its value needs that of a neighbour (relative), and is built by encode( h , m , c ) from the distances h, the Manhattan distance m( r ) of the placement of rank r and the parameter c, or by decode() from the bytes of payload(). The entries are held by the packed arrays of ADS, whose fields lie in the bytes as they do in the files.

Member Function Documentation

bytes()

std::size_t bytes ( void ) const

inlinenodiscardnoexcept

the bytes of the entries

decode()

ByteEntries decode ( std::vector< std::uint8_t > data, std::uint64_t n, unsigned = 1 )

inlinestaticnodiscard

the encoding of n entries read from a file

encode()

template<class M>

ByteEntries encode ( const std::vector< std::uint8_t > & h, M && , unsigned = 1 )

inlinestaticnodiscard

the encoding of the distances h

entries()

std::uint64_t entries ( void ) const

inlinenodiscardnoexcept

the number of the entries

payload()

std::vector< std::uint8_t > payload ( void ) const

inlinenodiscard

the bytes written in a file

value()

int value ( std::uint64_t r, int  ) const

inlinenodiscardnoexcept

the value of the rank r, whose placement has Manhattan distance m

Member Data Documentation

code

std::uint32_t code = 1

staticconstexpr

the code in a file

name

const char* name = "byte"

staticconstexpr

the name

relative

bool relative = false

staticconstexpr

absolute values

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

• PBeFS/astar/PatternDatabase.h