// = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = =//              B I N A R Y   C O D E   C L A S S E S// = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = =//         > > > >    C++ version  4.05  -  05/29/95   < < < <// Amir Said - amir@densis.fee.unicamp.br// University of Campinas (UNICAMP)// Campinas, SP 13081, Brazil// William A. Pearlman - pearlman@ecse.rpi.edu// Rensselaer Polytechnic Institute// Troy, NY 12180, USA// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -// Copyright (c) 1995 Amir Said & William A. Pearlman// This program is Copyright (c) by Amir Said & William A. Pearlman.// It may be freely redistributed in its entirety provided that this// copyright notice is not removed. It may not be sold for profit or// incorporated in commercial programs without the written permission// of the copyright holders. This program is provided as is, without any// express or implied warranty, without even the warranty of fitness// for a particular purpose.// - - Inclusion - - - - - - - - - - - - - - - - - - - - - - - - - - - -#ifndef General_H#include "general.h"#endif// - - External function - - - - - - - - - - - - - - - - - - - - - - - -int Rep_Bits(int);// = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = =//  Class definitions// = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = =class Encoder{  // . class data   .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  protected :    FILE * out_file;    int bit_buffer, bit_index, closed;    long byte_counter;  // . constructor  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  public :    Encoder(void) { closed = true; }  // . class functions .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .    long bytes_used(void) { return byte_counter; }    void open_file(char * file_name);    void close_file(void);    void open_file(void);    void close_file(char * file_name);    void code_bits(int numb_bits, int symb);    int code_bit(int symb);}; // end of class < Encoder >// = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = =class Decoder{  // . class data   .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  protected :    FILE * in_file;    int bit_buffer, bit_index;    boolean closed;    long byte_counter;  // . constructor  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  public :    Decoder(void) { closed = true; }  // . class functions .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .    long bytes_used(void) { return byte_counter; }    void open_file(char * file_name);    void close_file(void);    int decode_bits(int numb_bits);    int decode_bit(void);};  // end of class < Decoder >// = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = =//  Inline functions// = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = =inline int Encoder::code_bit(int b){  bit_buffer >>= 1;  if (b) bit_buffer |= 0x80;  if (!(--bit_index)) {    byte_counter++;  bit_index = 8;    if (putc(bit_buffer, out_file) == EOF)      Error("< Encoder > cannot write to file"); }  return b;}// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -inline int Decoder::decode_bit(void){  if (!bit_index) {    byte_counter++;  bit_index = 8;    if ((bit_buffer = getc(in_file)) == EOF)      Error("< Decoder > cannot read from file"); }  int b = bit_buffer & 1;  bit_buffer >>= 1;  bit_index--;  return b;}// = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = =// end of file < BinCode.H >