Question

Help please:

A Modular Function:

You must rewrite the code to use a modular function that can be used again by other modules.

Your main program will call the function and pass the variables by value. Your function will take the appropriate action and return the required value . (Hint you will use additional variables in your revised code).

The called function must be able to accept the data passed to it by the function doing the calling. Only after the called function successfully receives the data can the data be manipulated to produce a useful result. An example of passing data between functions is provided in Program 6.1 in your book, which calls a function findMax().

Code to re-write:

#include <iostream>

using namespace std;

int main()

{

            int count;

            double num, total;

            total = 0;

            cout << "Please enter a number";

            cin >> num;

            for (count = 1; count <=num; count = count + 1)

            {

                        // Re-write this section as a function

                        total = total + count;

                        cout << "Current number: " << count << endl;

                        cout << "Total so far: " << total << endl;

            }

            cout << "Your total is: " << total << endl;

            return 0;

}

Answer 1

#include <iostream>

using namespace std;

int dummy(int num,int total);

int main()

{

            int count;

            double num, total;

            total = 0;

            cout << "Please enter a number";

            cin >> num;

dummy(num,total);

cout << "Your total is: " << total << endl;

            return 0;

}

int dummy(int num,int total){

int count;

for (count = 1; count <=num; count = count + 1)

            {

                        // Re-write this section as a function

                        total = total + count;

                        cout << "Current number: " << count << endl;

                        cout << "Total so far: " << total << endl;

            }

return total;

}