C++ Dynamic Arrays

Implement the code below with these tasks

1. Overload *, / operators to multiply and divide bigPosInt numbers. ( + and - operators have been implemented in the code below)

2. overload >> and << for easy io.

3. implement appropriate constructors.

4. main.cpp shall support the following statements:

bigPosInt num1(1234567890123456789012345); bigPosInt num2(11223344556677889900112233"); ; cin >> num1;

cout << num1: << num1 << endl; cout << num2: << num2 << endl;

numTest = num1 * num2; cout << numTest: << numTest << endl;

numTest = num1 / num2; cout << numTest: << numTest << endl;

C++ Source code

#include

#include   using namespace std; //Calls definition  class bigPosInt { string number; public: bigPosInt(string s) { number = s; }//End of constructor  //Default constructor to initialize data member  bigPosInt() { number = ""; }//End of constructor  //Method prototype  friend ostream & operator << (ostream &out, const bigPosInt &c); friend istream & operator >> (istream &in, bigPosInt &c); bigPosInt operator + (bigPosInt); bigPosInt operator - (bigPosInt); }; //Overloads the + operator  bigPosInt bigPosInt::operator + (bigPosInt obj) { //Declares a temporary object to store the addition result  bigPosInt res; //Calculates the length of first number  int lenF = number.length(); //Calculates the length of second number  int lenS = obj.number.length(); //To store the character of a digit  char c; //Initialize the val to zero for storing carry  int val = 0; //Loops till end of the number  for(int x = lenF-1; x >= 0; x--) { //Converts the character at 'x' position and adds it  val = val + (number[x] - 48) + (obj.number[x] - 48); //Checks if the result is two digit  if(val > 9) { //Extracts the unit digit and converts it to character  c = (val % 10) + '0'; //Set the val to one for carry  val = 1; }//End of if  //If the val is single digit  else  { //Convert to character  c = '0' + val; //Set the val to zero for no carry  val = 0; }//End of else  //Concatenate the character at the beginning of the string  res.number = c + res.number; }//End of loop  //Return the result object  return res; }//End of method  //Overloads the - operator  bigPosInt bigPosInt::operator - (bigPosInt obj) { //Declares the temporary object to store the result  bigPosInt res; //Calculates the length of first number  int lenF = number.length(); //Calculates the length of second number  int lenS = obj.number.length(); //To store the character of a digit  char c; //Initialize the val to zero for storing borrow  int val = 0; //Loops till the length of the number  for(int x = lenF-1; x >= 0; x--) { //Checks if the first number digit is less then the second number digit  if((number[x] - 48) < (obj.number[x] - 48)) { //Subtract the second from the first  val = val + (obj.number[x] - 48) - (number[x] - 48); //Convert the result to character  c = val + '0'; //Set the val to -1 for borrow  val = -1; }//End of if  //Checks if the first number digit is not less then the second number digit  else  { //Subtract the first from the second  val = val + (number[x] - 48) - (obj.number[x] - 48); //Convert the result to character  c = '0' + val; //Set the val to 0 for borrow  val = 0; }//End of else  //Concatenates the character at the beginning of the result  res.number = c + res.number; }//End of loop  //Returns the result object  return res; }//End of method  //Overloads << operator to display the object data  ostream & operator << (ostream &out, const bigPosInt &c) { out << c.number<return out; }//End of method  //Overloads >> operator to accept the object data  istream & operator >> (istream &in, bigPosInt &c) { cout << "Enter the number: "; in >> c.number; return in; }//End of method  //Main method definition  int main() { //Creates two objects using parameterized constructor  bigPosInt num1("256"); bigPosInt num2("209"); //Displays the numbers  cout <<"The First Number: "<"The Second Number: "<//Adds two objects and stores the result in num3 object  bigPosInt num3 = num1 + num2; //Displays the result  cout<<"  Result: "<//Subtracts two objects and stores the result in num4 object  bigPosInt num4 = num1 - num2; //Displays the result  cout<<"  Result: "<return 0; }//End of main