irep_hash.h File Reference

#include <climits>
#include <cstddef>
#include <stdint.h>

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Macros
#define	IREP_HASH_BASIC
#define	FORCE_INLINE   inline __attribute__((always_inline))
#define	BIG_CONSTANT(x)   (x##LLU)
#define	hash_combine(h1, h2)   basic_hash_combine<sizeof(std::size_t) * CHAR_BIT>(h1, h2)
#define	hash_finalize(h1, len)   basic_hash_finalize(h1, len)

Functions
static	__attribute__ ((always_inline)) uint32_t ROTL32(uint32_t x
template<int >
std::size_t	basic_hash_combine (std::size_t h1, std::size_t h2)
template<>
std::size_t	basic_hash_combine< 32 > (std::size_t h1, std::size_t h2)
template<>
std::size_t	basic_hash_combine< 64 > (std::size_t h1, std::size_t h2)
std::size_t	basic_hash_finalize (std::size_t h1, std::size_t len)

Variables
static int8_t	r

Detailed Description

irep hash functions

Definition in file irep_hash.h.

Macro Definition Documentation

BIG_CONSTANT

#define BIG_CONSTANT

(

x

)

(x##LLU)

Definition at line 69 of file irep_hash.h.

FORCE_INLINE

#define FORCE_INLINE   inline __attribute__((always_inline))

Definition at line 55 of file irep_hash.h.

hash_combine

#define hash_combine	(		h1,
			h2
	)		basic_hash_combine<sizeof(std::size_t) * CHAR_BIT>(h1, h2)

Definition at line 121 of file irep_hash.h.

hash_finalize

#define hash_finalize	(		h1,
			len
	)		basic_hash_finalize(h1, len)

Definition at line 123 of file irep_hash.h.

IREP_HASH_BASIC

#define IREP_HASH_BASIC

Definition at line 17 of file irep_hash.h.

Function Documentation

__attribute__()

static __attribute__ ( (always_inline)  )

inlinestatic

basic_hash_combine()

template<int >

std::size_t basic_hash_combine	(	std::size_t	h1,
		std::size_t	h2
	)

basic_hash_combine< 32 >()

template<>

std::size_t basic_hash_combine< 32 > ( std::size_t  h1, std::size_t  h2  )

inline

Definition at line 82 of file irep_hash.h.

basic_hash_combine< 64 >()

template<>

std::size_t basic_hash_combine< 64 > ( std::size_t  h1, std::size_t  h2  )

inline

Definition at line 90 of file irep_hash.h.

basic_hash_finalize()

std::size_t basic_hash_finalize ( std::size_t  h1, std::size_t  len  )

inline

Definition at line 110 of file irep_hash.h.

Variable Documentation

r

static int8_t r

Initial value:

{
  return (x << r) | (x >> (32-r))

Definition at line 60 of file irep_hash.h.