#include <algorithm>
#include <ctime>
#include <fstream>
#include <iomanip>
#include <iostream>
#include <iterator>
#include <vector>
#include <numeric>
#include <sstream>
#include <stdint.h>

using namespace std;


int main(int ac, char **av) {


  string file_name = "col2.txt";
  std::fstream f(file_name, std::ios_base::in | ios::binary);
  uint64_t key;
  file_name = "col6.txt";
  std::fstream f1(file_name, std::ios_base::in | ios::binary);
  file_name = "col1.txt";
  std::fstream f4(file_name, std::ios_base::in | ios::binary);
  string date_string;
  file_name = "col5.txt";
  std::fstream f2(file_name, std::ios_base::in | ios::binary);
  char bool_char;
  unsigned int myenum;
  file_name = "col7.txt";
  std::fstream f7(file_name, std::ios_base::in | ios::binary);
  file_name = "col1.bin";
  std::ofstream f1_out(file_name, std::ios_base::out | ios::binary);
  file_name = "col2.bin";
  std::ofstream f2_out(file_name, std::ios_base::out | ios::binary);
  file_name = "col3.bin";
  std::ofstream f3_out(file_name, std::ios_base::out | ios::binary);
  file_name = "col5.bin";
  std::ofstream f5_out(file_name, std::ios_base::out | ios::binary);
  file_name = "col6.bin";
  std::ofstream f6_out(file_name, std::ios_base::out | ios::binary);
  file_name = "col7.bin";
  std::ofstream f7_out(file_name, std::ios_base::out | ios::binary);


  cout << "Parsing columns " << endl;

  if (f) {
	while (f >> key) {
	  f2_out.write(reinterpret_cast<const char *>(&key), 8);
	};
	f2_out.close();
  }
  else {
	cout << "Could not open file " << file_name << endl;
	exit(0);
  };

  if (f4) {
	while (f4 >> key) {
	  f1_out.write(reinterpret_cast<const char *>(&key), 8);
	};
	f1_out.close();
  }
  else {
	cout << "Could not open file " << file_name << endl;
	exit(0);
  };


  if (f1) {
    unsigned int mydate;
	while (f1 >> date_string) {
	  mydate = std::stoi(date_string.substr(0, 4) +
 						date_string.substr(5, 2) +
						date_string.substr(8, 2));
 	  f6_out.write(reinterpret_cast<const char *>(&mydate), 4);
	};
	f6_out.close();
  }
  else {
	cout << "Could not open file " << file_name << endl;
	exit(0);
  };

  if (f2) {
	while (f2 >> bool_char) {
	  f5_out.write(reinterpret_cast<const char *>(&bool_char), 1);
	};
	f5_out.close();
  }
  else {
	cout << "Could not open file " << file_name << endl;
	exit(0);
  };

  if (f7) {
	while (f7 >> myenum) {
	  f7_out.write(reinterpret_cast<const char *>(&myenum), 4);
	};
	f7_out.close();
  }
  else {
	cout << "Could not open file " << file_name << endl;
	exit(0);
  };


  return 0;
}