bitutil

package
v1.8.19 Latest Latest
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 Go to latest Published: Nov 28, 2018 License: GPL-3.0 Imports: 3 Imported by: 1,790

Documentation

Overview

Package bitutil implements fast bitwise operations.

Index

Constants

This section is empty.

Variables

This section is empty.

Functions

func ANDBytes 

func ANDBytes(dst, a, b []byte) int

ANDBytes ands the bytes in a and b. The destination is assumed to have enough space. Returns the number of bytes and'd.

func CompressBytes 

func CompressBytes(data []byte) []byte

CompressBytes compresses the input byte slice according to the sparse bitset representation algorithm. If the result is bigger than the original input, no compression is done.

func DecompressBytes 

func DecompressBytes(data []byte, target int) ([]byte, error)

DecompressBytes decompresses data with a known target size. If the input data matches the size of the target, it means no compression was done in the first place.

func ORBytes 

func ORBytes(dst, a, b []byte) int

ORBytes ors the bytes in a and b. The destination is assumed to have enough space. Returns the number of bytes or'd.

func TestBytes 

func TestBytes(p []byte) bool

TestBytes tests whether any bit is set in the input byte slice.

func XORBytes 

func XORBytes(dst, a, b []byte) int

XORBytes xors the bytes in a and b. The destination is assumed to have enough space. Returns the number of bytes xor'd.

Types

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Source Files

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