leb128

Documentation

Overview

Package leb128 provides functions for reading integer values encoded in the Little Endian Base 128 (LEB128) format: https://en.wikipedia.org/wiki/LEB128

Index

• func AppendSleb128(b []byte, v int64) []byte
• func AppendUleb128(b []byte, v uint64) []byte
• func ReadVarUint32(r io.Reader) (uint32, error)
• func ReadVarUint32Size(r io.Reader) (res uint32, size uint, err error)
• func ReadVarint32(r io.Reader) (int32, error)
• func ReadVarint32Size(r io.Reader) (res int32, size uint, err error)
• func ReadVarint64(r io.Reader) (int64, error)
• func ReadVarint64Size(r io.Reader) (res int64, size uint, err error)
• func WriteVarUint32(w io.Writer, cur uint32) (int, error)
• func WriteVarint64(w io.Writer, cur int64) (int, error)

Functions

func AppendSleb128

func AppendSleb128(b []byte, v int64) []byte

AppendSleb128 appends v to b using signed LEB128 encoding.

func AppendUleb128

func AppendUleb128(b []byte, v uint64) []byte

AppendUleb128 appends v to b using unsigned LEB128 encoding.

func ReadVarUint32

func ReadVarUint32(r io.Reader) (uint32, error)

ReadVarUint32 reads a LEB128 encoded unsigned 32-bit integer from r, and returns the integer value, and the error (if any).

func ReadVarUint32Size

func ReadVarUint32Size(r io.Reader) (res uint32, size uint, err error)

ReadVarUint32Size reads a LEB128 encoded unsigned 32-bit integer from r. It returns the integer value, the size of the encoded value (in bytes), and the error (if any).

func ReadVarint32

func ReadVarint32(r io.Reader) (int32, error)

ReadVarint32 reads a LEB128 encoded signed 32-bit integer from r, and returns the integer value, and the error (if any).

func ReadVarint32Size

func ReadVarint32Size(r io.Reader) (res int32, size uint, err error)

ReadVarint32Size reads a LEB128 encoded signed 32-bit integer from r, and returns the integer value, the size of the encoded value, and the error (if any)

func ReadVarint64

func ReadVarint64(r io.Reader) (int64, error)

ReadVarint64 reads a LEB128 encoded signed 64-bit integer from r, and returns the integer value, and the error (if any).

func ReadVarint64Size

func ReadVarint64Size(r io.Reader) (res int64, size uint, err error)

ReadVarint64Size reads a LEB128 encoded signed 64-bit integer from r, and returns the integer value, the size of the encoded value, and the error (if any)

func WriteVarUint32

func WriteVarUint32(w io.Writer, cur uint32) (int, error)

WriteVarUint32 writes a LEB128 encoded unsigned 32-bit integer to w. It returns the integer value, the size of the encoded value (in bytes), and the error (if any).

func WriteVarint64

func WriteVarint64(w io.Writer, cur int64) (int, error)

WriteVarint64 writes a LEB128 encoded signed 64-bit integer to w, and returns the integer value, the size of the encoded value, and the error (if any)