rapidhash.h File Reference

#include <stdint.h>
#include <string.h>

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Macros
#define	_likely_(x)   (x)
#define	_unlikely_(x)   (x)
#define	RAPID_SEED   (0xbdd89aa982704029ull)
#define	RAPIDHASH_CONSTEXPR   static const
#define	RAPIDHASH_FAST
#define	RAPIDHASH_INLINE   static inline
#define	RAPIDHASH_LITTLE_ENDIAN
#define	RAPIDHASH_NOEXCEPT
#define	RAPIDHASH_UNROLLED

Functions
RAPIDHASH_INLINE uint64_t	rapid_mix (uint64_t A, uint64_t B) RAPIDHASH_NOEXCEPT
RAPIDHASH_INLINE void	rapid_mum (uint64_t *A, uint64_t *B) RAPIDHASH_NOEXCEPT
RAPIDHASH_INLINE uint64_t	rapid_read32 (const uint8_t *p) RAPIDHASH_NOEXCEPT
RAPIDHASH_INLINE uint64_t	rapid_read64 (const uint8_t *p) RAPIDHASH_NOEXCEPT
RAPIDHASH_INLINE uint64_t	rapid_readSmall (const uint8_t *p, size_t k) RAPIDHASH_NOEXCEPT
RAPIDHASH_INLINE uint64_t	rapidhash (const void *key, size_t len) RAPIDHASH_NOEXCEPT
RAPIDHASH_INLINE uint64_t	rapidhash_internal (const void *key, size_t len, uint64_t seed, const uint64_t *secret) RAPIDHASH_NOEXCEPT
RAPIDHASH_INLINE uint64_t	rapidhash_withSeed (const void *key, size_t len, uint64_t seed) RAPIDHASH_NOEXCEPT

Variables
RAPIDHASH_CONSTEXPR uint64_t	rapid_secret [3] = {0x2d358dccaa6c78a5ull, 0x8bb84b93962eacc9ull, 0x4b33a62ed433d4a3ull}

Macro Definition Documentation

_likely_

#define _likely_

(

x

)

(x)

Definition at line 102 of file rapidhash.h.

_unlikely_

#define _unlikely_

(

x

)

(x)

Definition at line 103 of file rapidhash.h.

RAPID_SEED

#define RAPID_SEED   (0xbdd89aa982704029ull)

Definition at line 123 of file rapidhash.h.

RAPIDHASH_CONSTEXPR

#define RAPIDHASH_CONSTEXPR   static const

Definition at line 61 of file rapidhash.h.

RAPIDHASH_FAST

#define RAPIDHASH_FAST

Definition at line 74 of file rapidhash.h.

RAPIDHASH_INLINE

#define RAPIDHASH_INLINE   static inline

Definition at line 63 of file rapidhash.h.

RAPIDHASH_LITTLE_ENDIAN

#define RAPIDHASH_LITTLE_ENDIAN

Definition at line 116 of file rapidhash.h.

RAPIDHASH_NOEXCEPT

#define RAPIDHASH_NOEXCEPT

Definition at line 60 of file rapidhash.h.

RAPIDHASH_UNROLLED

#define RAPIDHASH_UNROLLED

Definition at line 90 of file rapidhash.h.

Function Documentation

rapid_mix()

RAPIDHASH_INLINE uint64_t rapid_mix	(	uint64_t	A,
		uint64_t	B
	)

Definition at line 196 of file rapidhash.h.

References rapid_mum().

Referenced by rapidhash_internal().

rapid_mum()

RAPIDHASH_INLINE void rapid_mum	(	uint64_t *	A,
		uint64_t *	B
	)

Definition at line 146 of file rapidhash.h.

Referenced by rapid_mix(), and rapidhash_internal().

rapid_read32()

RAPIDHASH_INLINE uint64_t rapid_read32

(

const uint8_t *

p

)

Definition at line 203 of file rapidhash.h.

Referenced by rapidhash_internal().

rapid_read64()

RAPIDHASH_INLINE uint64_t rapid_read64

(

const uint8_t *

p

)

Definition at line 202 of file rapidhash.h.

Referenced by rapidhash_internal().

rapid_readSmall()

RAPIDHASH_INLINE uint64_t rapid_readSmall	(	const uint8_t *	p,
		size_t	k
	)

Definition at line 232 of file rapidhash.h.

Referenced by rapidhash_internal().

rapidhash()

RAPIDHASH_INLINE uint64_t rapidhash	(	const void *	key,
		size_t	len
	)

Definition at line 321 of file rapidhash.h.

References RAPID_SEED, and rapidhash_withSeed().

Referenced by BuildLog::LogEntry::HashCommand(), and std::hash< StringPiece >::operator()().

rapidhash_internal()

RAPIDHASH_INLINE uint64_t rapidhash_internal	(	const void *	key,
		size_t	len,
		uint64_t	seed,
		const uint64_t *	secret
	)

Definition at line 244 of file rapidhash.h.

References _likely_, _unlikely_, rapid_mix(), rapid_mum(), rapid_read32(), rapid_read64(), and rapid_readSmall().

Referenced by rapidhash_withSeed().

rapidhash_withSeed()

RAPIDHASH_INLINE uint64_t rapidhash_withSeed	(	const void *	key,
		size_t	len,
		uint64_t	seed
	)

Definition at line 307 of file rapidhash.h.

References rapid_secret, and rapidhash_internal().

Referenced by rapidhash().

Variable Documentation

rapid_secret

RAPIDHASH_CONSTEXPR uint64_t rapid_secret[3] = {0x2d358dccaa6c78a5ull, 0x8bb84b93962eacc9ull, 0x4b33a62ed433d4a3ull}

Definition at line 128 of file rapidhash.h.

Referenced by rapidhash_withSeed().