#include <hash.h>

Detailed Description

UniqueHash is used as return type of GetUniqueHashCode functions. It has a size of 128 bits. For reasonable hash code functions it's a practically safe assumption that there are no hash collisions, so one can consider such a hash to be unique.

Public Member Functions
	UniqueHash ()=default

constexpr	UniqueHash (UInt64 l, UInt64 h)

Bool	operator== (const UniqueHash &other) const

Bool	operator!= (const UniqueHash &other) const

Bool	operator< (const UniqueHash &other) const

	MAXON_OPERATOR_INEQUALITY (UniqueHash)

HashInt	GetHashCode () const

const UniqueHash &	GetUniqueHashCode () const

constexpr UInt	operator& (UInt mask) const

void	CombineUnordered (const UniqueHash &other)

Static Public Member Functions
static constexpr Bool	TriviallyHashable ()

static UniqueHash	GetUniqueHashCode (const Byte *ptr, Int count)

static UniqueHash	GetUniqueHashCode (const Block< const Byte > &bytes)

Public Attributes
UInt64	low

UInt64	high

Constructor & Destructor Documentation

◆ UniqueHash() [1/2]

UniqueHash ( )

default

◆ UniqueHash() [2/2]

constexpr UniqueHash	(	UInt64	l,
		UInt64	h
	)

constexpr

Member Function Documentation

◆ TriviallyHashable()

static constexpr Bool TriviallyHashable ( )

staticconstexpr

◆ operator==()

Bool operator== ( const UniqueHash & other ) const

◆ operator!=()

Bool operator!= ( const UniqueHash & other ) const

◆ operator<()

Bool operator< ( const UniqueHash & other ) const

◆ MAXON_OPERATOR_INEQUALITY()

MAXON_OPERATOR_INEQUALITY ( UniqueHash )

◆ GetHashCode()

HashInt GetHashCode ( ) const

◆ GetUniqueHashCode()

const UniqueHash& GetUniqueHashCode ( ) const

◆ operator&()

constexpr UInt operator& ( UInt mask ) const

constexpr

Returns the bitwise and of the low bits of this UniqueHash and the given mask.

Parameters

[in] mask A bit mask.

Returns: Bitwise and of low bits and mask.

◆ CombineUnordered()

void CombineUnordered ( const UniqueHash & other )

Combines the other UniqueHash with this UniqueHash in an unordered way, which means that the effect of multiple calls to CombineUnordered doesn't depend on the order of those calls. You can use this function to compute a UniqueHash of a sequence of UniqueHashes when the sequence order shall be irrelevant.

Parameters

[in] other Another UniqueHash.

Member Data Documentation

◆ low

UInt64 low

The lower 64 bits of the UniqueHash.

◆ high

UInt64 high

The higher 64 bits of the UniqueHash.