lzw-assignment/src/bitpack.hh

/**
 *   \file bitpack.hh
 *   \brief Header for bit-packing functions
 */

#ifndef LZW_SRC_BITPACK_H_
#define LZW_SRC_BITPACK_H_

#include <cstdint>
#include <string>
#include <vector>

/// \brief Bat-packs the input dynamically
std::vector<unsigned char> pack(const std::vector<std::uint16_t> &);

/// \brief Packs std::uint16_t of n bits into unsigned char
std::vector<unsigned char>
pack_n(std::vector<std::uint16_t>::const_iterator , std::vector<std::uint16_t>::const_iterator ,
			 std::vector<unsigned char> , int );

/// \brief Specialization of \ref pack_n for 16bits
std::vector<unsigned char>
pack_16(std::vector<std::uint16_t>::const_iterator , std::vector<std::uint16_t>::const_iterator ,
				std::vector<unsigned char> );

std::vector<std::uint16_t> unpack(std::basic_string<unsigned char> &&);

std::vector<std::uint16_t>
unpack_n(std::basic_string<unsigned char>::const_iterator t_begin,
				 std::basic_string<unsigned char>::const_iterator t_end,
				 std::vector<std::uint16_t> t_res, int t_n);

std::vector<std::uint16_t>
unpack_16(std::basic_string<unsigned char>::const_iterator,
					std::basic_string<unsigned char>::const_iterator,
					std::vector<std::uint16_t>);

#endif /* LZW_SRC_BITPACK_H_ */