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bitset.go

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package data

func IsBitSet(buffer []byte, offset uint16, index uint8) (bool, error) {

bitset, err := ReadByte(buffer, offset)

if err != nil {

return false, err

}

return (bitset & (1 << index)) != 0, nil

}

func WriteBit(isSet bool, buffer []byte, offset uint16, index uint8) error {

bitset, err := ReadByte(buffer, offset)

if err != nil {

return err

}

if isSet {

if (bitset & (1 << index)) != 0 {

// Unset bit

bitset ^= 1 << index

}

} else {

// Set bit

bitset |= 1 << index

}

return WriteByte(bitset, buffer, offset)

}