// big_num_driver.cpp file

#include

#include

#include

#include "big_num.h"

int main() {

std::string str;

std::cout

getline(std::cin,str);

big_num x(str);

std::cout

getline(std::cin,str);

big_num y(str);

big_num result = (x+y);

std::cout

std::cout

return 0;

}

// big_num.h file

#ifndef BIGNUM_H

#define BIGNUM_H

#include

#include

#include

#include

class big_num {

public:

big_num(std::string);

friend std::ostream& operator

friend big_num operator +( big_num&, big_num&);

int& operator [](int i) {return digits[i];}

int size() const {return digits.size();}

private:

std::vector digits; // an array of numDigits digits

};

#endif

Given big_num.h and big_num_driver.cpp implement, the big_num class so that the main in big_num_driver.cpp will work. Do not change the main it is good. see examples vocstartsoft:~/environment/Lab6 $ ./BigNum Enter a number: 98347901287 Enter a number: 38120383 98347901287 + 38120383 38120383 = 98386021670 vocstartsoft:~/environment/Lab6 $ ./BigNum Enter a number: 99999 Enter a number: 1 99999 + 1 = 100000 vocstartsoft:~/environment/Lab6 $ ./BigNum Enter a number: 321 Enter a number: 82344234789 321 + 82344234789 = 82344235110 vocstartsoft:~/environment/Lab6 $ I When you are finished submit you big_num.h file Given big_num.h and big_num_driver.cpp implement, the big_num class so that the main in big_num_driver.cpp will work. Do not change the main it is good. see examples vocstartsoft:~/environment/Lab6 $ ./BigNum Enter a number: 98347901287 Enter a number: 38120383 98347901287 + 38120383 38120383 = 98386021670 vocstartsoft:~/environment/Lab6 $ ./BigNum Enter a number: 99999 Enter a number: 1 99999 + 1 = 100000 vocstartsoft:~/environment/Lab6 $ ./BigNum Enter a number: 321 Enter a number: 82344234789 321 + 82344234789 = 82344235110 vocstartsoft:~/environment/Lab6 $ I When you are finished submit you big_num.h file