isc::util::Hash64 Struct Reference

Hash implementation based on Fowler-Noll-Vo hash function. More...

#include <hash.h>

Static Public Member Functions
static uint64_t	hash (const std::string &str)
	Compute the hash.
static uint64_t	hash (const uint8_t *data, size_t length)
	Compute the hash.

Static Public Attributes
static const uint64_t	FNV_offset_basis = 14695981039346656037ull
	Offset basis.
static const uint64_t	FNV_prime = 1099511628211ull
	Prime.

Detailed Description

Hash implementation based on Fowler-Noll-Vo hash function.

Definition at line 19 of file hash.h.

Member Function Documentation

hash() [1/2]

static uint64_t isc::util::Hash64::hash ( const std::string &  str )

inlinestatic

Compute the hash.

FNV-1a hash function

Parameters

str	not empty string to hash

Returns

the hash value

Definition at line 42 of file hash.h.

References hash().

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hash() [2/2]

static uint64_t isc::util::Hash64::hash ( const uint8_t *  data, size_t  length  )

inlinestatic

Compute the hash.

FNV-1a hash function

Parameters

data	data to hash
length	length of data

Returns

the hash value

Definition at line 27 of file hash.h.

References FNV_offset_basis, FNV_prime, and hash().

Referenced by hash().

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Member Data Documentation

FNV_offset_basis

const uint64_t isc::util::Hash64::FNV_offset_basis = 14695981039346656037ull

static

Offset basis.

Definition at line 48 of file hash.h.

Referenced by hash().

FNV_prime

const uint64_t isc::util::Hash64::FNV_prime = 1099511628211ull

static

Prime.

Definition at line 51 of file hash.h.

Referenced by hash().

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The documentation for this struct was generated from the following file:

• hash.h