int main ()
{
ifstream infile; //stream to read from txt file
ofstream toBin; //stream to write to the binary file
ifstream fromBin; //stream to read from the binary file
STATE reader = NOT_READY; //program status bit
vector < int > values ( 1 ); //vector containing uncompressed digits
vector < unsigned short int > bin ( 1 ); //vector containing bit packed digits
vector < int > format ( 2 ); //vector containing formatting data
int data_set = 1; //counter for how many data sets have been processed
Reader read; //set up of reader class object to pull data from txt file
Packer pack; //set up of packer class that will perform bit packing / unpacking
Writer write; //set up of writer class that will read / write binary file
try //enclosed in a try block to catch any unexpected errors
{
reader = read.open(infile); //open the file. File name is coded into the funciton
while (reader != FILE_END) //while loop will ensure that it will continue until all data sets are processed
{
reader = read.process(infile, values); //first set of data is read from the file and stored in the values array
if (reader == SET_END || reader == FILE_END) //main body of main will only be processed if a data set was read successfully
{
format.resize ( read.getPer_set() + 1); //prepare format array to hold the formatting data
format[0] = read.getPer_set(); //first slot of the format array is the number of digits in each set to be encoded
for(int i = 0; i < format[0] ; ++i) //the remaining slots are how may bits each digit will be packed into
format[ i + 1 ] = read.getBits_per(i);
cout << "\n\nDisplay input for data set " << data_set << ":\n"; //display the data pulled from the file
read.display(values);
pack.compress(values, format, bin); //perform bit packing and save in the bin array
cout << "\nDisplay binary file input:\n"; //display bit packed data
read.display(bin);
write.Write(bin, toBin); //write the binary data to the file
write.Read(bin, fromBin); //read the binary data from the file and store in the bin array
cout << "\nDisplay binary file output:\n"; //display bit packed data as it was read from the file
read.display(bin);
pack.decompress(values, bin); //unpack the digits and store in the values array
cout << "\nDisplay data read from file:\n"; //display the unpacked digits
read.display(values);
cout << "\n\nEnd of data set " << data_set << endl << endl; //show end of data set
++data_set; //incriment data set counter
}
}
}
catch (exception & error) //catch any error thrown by program, display .what string
{
cout << error.what();
}
infile.close(); //close the stream from the .txt file. toBin and fromBin are opened and closed within the function using them
cout << "\nProgram Ending\n\n\n"; //end program
cout << "Press Enter key to end -->";
cin.ignore(80, '\n');
cout << endl;
return 0;
}
