Introduction
xxHash framework in Swift.
A framework includes XXH32/XXH64/XXH3-64/XXH3-128 functions.
Original xxHash algorithm created by Yann Collet.
Requirements
- Platforms
- iOS 10.0+
- macOS 10.12+
- tvOS 12.0+
- Linux
- Swift 5.0
Installation
Carthage
github "daisuke-t-jp/xxHash-Swift"
CocoaPods
use_frameworks!
target 'target' do
pod 'xxHash-Swift'
end
Usage
Import framework
import xxHash_SwiftXXH32
Generate digest(One-shot)
let digest = XXH32.digest("123456789ABCDEF")
// digest -> 0x576e3cf9
// Using seed.
let digest = XXH32.digest("123456789ABCDEF", seed: 0x7fffffff)
// digest -> 0xa7f06f9dGenerate digest(Streaming)
// Create xxHash instance
let xxh = XXH32() // if using seed, e.g. "XXH32(0x7fffffff)"
// Get data from file
let bundle = Bundle(for: type(of: self))
let path = bundle.path(forResource: "alice29", ofType: "txt")!
let data = NSData(contentsOfFile: path)! as Data
let bufSize = 1024
var index = 0
repeat {
var lastIndex = index + bufSize
if lastIndex > data.count {
lastIndex = index + data.count - index
}
let data2 = data[index..<lastIndex]
xxh.update(data2) // xxHash update
index += data2.count
if index >= data.count {
break
}
} while(true)
let digest = xxh.digest()
// digest -> 0xafc8e0c2XXH64
Generate digest(One-shot)
let digest = XXH64.digest("123456789ABCDEF")
// digest -> 0xa66df83f00e9202d
// Using seed.
let digest = XXH64.digest("123456789ABCDEF", seed: 0x000000007fffffff)
// digest -> 0xe8d84202a16e482fGenerate digest(Streaming)
// Create xxHash instance
let xxh = XXH64() // if using seed, e.g. "XXH64(0x000000007fffffff)"
// Get data from file
let bundle = Bundle(for: type(of: self))
let path = bundle.path(forResource: "alice29", ofType: "txt")!
let data = NSData(contentsOfFile: path)! as Data
let bufSize = 1024
var index = 0
repeat {
var lastIndex = index + bufSize
if lastIndex > data.count {
lastIndex = index + data.count - index
}
let data2 = data[index..<lastIndex]
xxh.update(data2) // xxHash update
index += data2.count
if index >= data.count {
break
}
} while(true)
let digest = xxh.digest()
// digest -> 0x843c2c4ccfbfb749XXH3-64
Generate digest(One-shot)
let digest = XXH3.digest64("123456789ABCDEF")
// digest -> 0xfb28db77f56706e8
// Using seed.
let digest = XXH3.digest64("123456789ABCDEF", seed: 0x000000007fffffff)
// digest -> 0xced1ef1da8aa95aeXXH3-128
Generate digest(One-shot)
let digest = XXH3.digest128("123456789ABCDEF")
// digest[0] -> 0x208cfe2ef00d2aaa
// digest[1] -> 0x9b72015eec4abbf3
// Using seed.
let digest = XXH3.digest128("123456789ABCDEF", seed: 0x000000007fffffff)
// digest[0] -> 0x50554db504518e64
// digest[1] -> 0xc8fb00b18f99658cDemo
There are demos.