CityHash.cpp File Reference

#include "Hash/CityHash.h"
#include "HAL/UnrealMemory.h"
#include <Misc/ByteSwap.h>

Namespaces
namespace	CityHash_Internal

Macros
#define	bswap_32(x)   BYTESWAP_ORDER32(x)
#define	bswap_64(x)   BYTESWAP_ORDER64(x)
#define	uint32_in_expected_order(x)   (x)
#define	uint64_in_expected_order(x)   (x)
#define	LIKELY(x)   (x)
#define	PERMUTE3(a, b, c)   do { SwapValues(a, b); SwapValues(a, c); } while (0)

Functions
template<typename T >
void	SwapValues (T &a, T &b)
uint32	CityHash32 (const char *s, uint32 len)
uint64	CityHash64 (const char *s, uint32 len)
uint64	CityHash64WithSeed (const char *s, uint32 len, uint64 seed)
uint64	CityHash64WithSeeds (const char *s, uint32 len, uint64 seed0, uint64 seed1)

Macro Definition Documentation

bswap_32

#define bswap_32

(

x

)

BYTESWAP_ORDER32(x)

bswap_64

#define bswap_64

(

x

)

BYTESWAP_ORDER64(x)

LIKELY

#define LIKELY

(

x

)

(x)

PERMUTE3

#define PERMUTE3	(		a,
			b,
			c
	)		do { SwapValues(a, b); SwapValues(a, c); } while (0)

uint32_in_expected_order

#define uint32_in_expected_order

(

x

)

(x)

uint64_in_expected_order

#define uint64_in_expected_order

(

x

)

(x)

Function Documentation

CityHash32()

uint32 CityHash32	(	const char *	s,
		uint32	len
	)

CityHash64()

uint64 CityHash64	(	const char *	s,
		uint32	len
	)

CityHash64WithSeed()

uint64 CityHash64WithSeed	(	const char *	s,
		uint32	len,
		uint64	seed
	)

CityHash64WithSeeds()

uint64 CityHash64WithSeeds	(	const char *	s,
		uint32	len,
		uint64	seed0,
		uint64	seed1
	)

SwapValues()

template<typename T >

void SwapValues	(	T &	a,
		T &	b
	)