hash.cc File Reference

#include <cstdint>
#include <ankerl/unordered_dense.h>
#include "my_hash_combine.h"
#include "sql/hash.h"

Functions
uint64_t	HashCString (const char *str)
uint64_t	HashString (const std::string_view str)
template<typename T >
uint64_t	HashNumber (T num)
template uint64_t	HashNumber< int > (int num)
template uint64_t	HashNumber< double > (double num)
template uint64_t	HashNumber< uint64_t > (uint64_t num)
template uint64_t	HashNumber< long long > (long long num)
template uint64_t	HashNumber< long > (long num)
template uint64_t	HashNumber< unsigned int > (unsigned int num)
template uint64_t	HashNumber< unsigned char > (unsigned char num)
uint64_t	CombineNonCommutativeSigs (uint64_t h1, uint64_t h2)
	Non-commutative hash combination NULL hashes (i.e. More...
uint64_t	CombineCommutativeSigs (uint64_t h1, uint64_t h2)
	Commutative hash combination NULL hashes (i.e. More...

Function Documentation

CombineCommutativeSigs()

uint64_t CombineCommutativeSigs	(	uint64_t	h1,
		uint64_t	h2
	)

Commutative hash combination NULL hashes (i.e.

hash value of zero) do not propagate, meaning that the combination of a non-zero hash and a zero hash will yield a non-zero hash.

CombineNonCommutativeSigs()

uint64_t CombineNonCommutativeSigs	(	uint64_t	h1,
		uint64_t	h2
	)

Non-commutative hash combination NULL hashes (i.e.

hash value of zero) do not propagate, meaning that the combination of a non-zero hash and a zero hash will yield a non-zero hash.

HashCString()

uint64_t HashCString

(

const char *

str

)

HashNumber()

template<typename T >

uint64_t HashNumber

(

T

num

)

HashNumber< double >()

template uint64_t HashNumber< double >

(

double

num

)

HashNumber< int >()

template uint64_t HashNumber< int >

(

int

num

)

HashNumber< long >()

template uint64_t HashNumber< long >

(

long

num

)

HashNumber< long long >()

template uint64_t HashNumber< long long >

(

long long

num

)

HashNumber< uint64_t >()

template uint64_t HashNumber< uint64_t >

(

uint64_t

num

)

HashNumber< unsigned char >()

template uint64_t HashNumber< unsigned char >

(

unsigned char

num

)

HashNumber< unsigned int >()

template uint64_t HashNumber< unsigned int >

(

unsigned int

num

)

HashString()

uint64_t HashString

(

const std::string_view

str

)