city – github.com/go-faster/city Index | Examples | Files

package city

import "github.com/go-faster/city"

Package city implements CityHash in go.

Index

Examples

Functions

func Hash32 

func Hash32(s []byte) uint32

Hash32 return 32-bit hash.

Example

Code: 

{
	s := []byte("hello")
	hash32 := Hash32(s)
	fmt.Printf("the 32-bit hash of 'hello' is: 0x%x\n", hash32)

	// Output:
	// the 32-bit hash of 'hello' is: 0x79969366
}

Output:

the 32-bit hash of 'hello' is: 0x79969366

func Hash64 

func Hash64(s []byte) uint64

Hash64 return a 64-bit hash.

Example

Code: 

{
	s := []byte("hello")
	hash64 := Hash64(s)
	fmt.Printf("the 64-bit hash of 'hello' is: 0x%x\n", hash64)

	// Output:
	// the 64-bit hash of 'hello' is: 0xb48be5a931380ce8
}

Output:

the 64-bit hash of 'hello' is: 0xb48be5a931380ce8

func Hash64WithSeed 

func Hash64WithSeed(s []byte, seed uint64) uint64

Hash64WithSeed return a 64-bit hash with a seed.

func Hash64WithSeeds 

func Hash64WithSeeds(s []byte, seed0, seed1 uint64) uint64

Hash64WithSeeds return a 64-bit hash with two seeds.

Types

type U128 

type U128 struct {
	Low, High uint64 // much faster than uint64[2]
}

U128 is uint128.

func Hash128 

func Hash128(s []byte) U128

Hash128 returns a 128-bit hash and are tuned for strings of at least a few hundred bytes. Depending on your compiler and hardware, it's likely faster than Hash64() on sufficiently long strings. It's slower than necessary on shorter strings, but we expect that case to be relatively unimportant.

Example

Code: 

{
	s := []byte("hello")
	hash128 := Hash128(s)
	fmt.Printf("the 128-bit hash of 'hello' is: 0x%x%x\n", hash128.High, hash128.Low)

	// Output:
	// the 128-bit hash of 'hello' is: 0x65148f580b45f3476f72e4abb491a74a
}

Output:

the 128-bit hash of 'hello' is: 0x65148f580b45f3476f72e4abb491a74a

func Hash128Seed 

func Hash128Seed(s []byte, seed U128) U128

Hash128Seed return a 128-bit hash with a seed.

Source Files

128.go 32.go 64.go doc.go u128.go

Version
v0.0.2
Published
Nov 17, 2021
Platform
js/wasm
Imports
1 packages
Last checked
now –

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