DecodeZigZag decodes a ZigZag encoded integer and returns it.

EncodeZigZag encodes a given integer to ZigZag-encoding.

IntN returns the signed two's complement of x with the specified integer bit width.

NewReader returns a new Reader that reads bits from r.

WriteUnary encodes x as an unary coded integer, whose value is represented by the number of leading zeros before a one.

A Reader handles bit reading operations.