nazabits

package

v0.12.3 Latest Latest Go to latest Published: May 30, 2020 License: MIT Imports: 0 Imported by: 36

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func GetBit16(v []byte, pos uint) uint8

func GetBit8(v uint8, pos uint) uint8

@param pos: 取值范围 [0, 7]，0表示最低位

func GetBits16(v []byte, pos uint, n uint) uint16

func GetBits8(v uint8, pos uint, n uint) uint8

@param pos: 取值范围 [0, 7]，0表示最低位 @param n: 取多少位，取值范围 [1, 8]

举例，GetBits8(105, 2, 4) = 10（即1010）

v: 0110 1001

pos: 2

n:   .. ..

type BitReader struct {
	// contains filtered or unexported fields
}

func NewBitReader(b []byte) BitReader

func (br *BitReader) ReadBit() uint8

func (br *BitReader) ReadBits16(n uint) (r uint16)

@param n: 取值范围 [1, 16]

func (br *BitReader) ReadBits32(n uint) (r uint32)

func (br *BitReader) ReadBits8(n uint) (r uint8)

@param n: 取值范围 [1, 8]

func (br *BitReader) ReadBytes(n uint) (r []byte)

@param n: 读取多少个字节

type BitWriter struct {
	// contains filtered or unexported fields
}

func NewBitWriter(b []byte) BitWriter

func (bw *BitWriter) WriteBit(b uint8)

@param b: 当b不为0和1时，取b的最低位

func (bw *BitWriter) WriteBits16(n uint, v uint16)

func (bw *BitWriter) WriteBits8(n uint, v uint8)

将<v>的低<n>位写入 @param n: 取值范围 [1, 8]