galaco / bitbuf

A simple Go Read & Write bitstream

bitbuf

A readable bitstream. Create from a byte slice, and read through the stream bit by bit.

Supports the following read types:

• byte, []byte
• int8, int16, int32, int64
• uint8, uint16, uint32, uint64
• float32, float64
• string (of known length, or until null terminator)
• bits (returned as []byte

Usage

package main

import (
	"bytes"
	"encoding/binary"
	"github.com/galaco/bitbuf"
	"log"
)

type Foo struct {
	A byte
	B int16
	C float32
	D int64
	E [32]byte
	F uint8
	G float64
	H int8
	I uint32
}

func main() {
	dataBuffer := &bytes.Buffer{}
	f := Foo{
		A: 32,
		B: 8375,
		C: 2106.3212345,
		D: 5635455352,
		E: [32]byte{84,12,1,2,3,4,5,6,7,8,9,0,1,2,3,4,5,6,7,8,9,0,12,13,54,1,143,234,5,56,1,2},
		F: 213,
		G: -756351.123,
		H: -57,
		I: 12645123,
	}

	binary.Write(dataBuffer, binary.LittleEndian, f)

	buf := bitbuf.NewReader(dataBuffer.Bytes())
	log.Println(buf.ReadByte())
	log.Println(buf.ReadInt16())
	log.Println(buf.ReadFloat32())
	log.Println(buf.ReadInt64())
	log.Println(buf.ReadBytes(32))
	log.Println(buf.ReadUint8())
	log.Println(buf.ReadFloat64())
	log.Println(buf.ReadInt8())
	log.Println(buf.ReadUint32())
}