Question

Download the attached file/s, copy and paste the code segment/s into your visual studio or any other C++ IDE and run it. You will have to implement a small intentional bug in your program

// This program uses a function that returns a value.
#include <iostream>
using namespace std;

// Function prototype
int sum(int num1, int num2);

int main()
{
   int value1 = 20,   // The first value
       value2 = 40,   // The second value
       total;         // Holds the returned total

   // Call the sum function, passing the contents of
   // value1 and value2 as arguments. Assign the return
   // value to the total variable.
   total = sum(value1, value2);

   // Display the sum of the values
   cout << "The sum of " << value1 << " and "
        << value2 << " is " << total << endl;
   return 0;
}

/*********************************************************
*                          sum                          *
* This function returns the sum of its two parameters. *
*********************************************************/
int sum(int num1, int num2)
{
   return num1 + num2;
}

Answer 1

// This program uses a function that returns a value.
#include <iostream>

using namespace std;

// Function prototype
int sum(int num1, int num2);

int main() {
    int value1 = 20,   // The first value
    value2 = 40,   // The second value
    total;         // Holds the returned total

    // Call the sum function, passing the contents of
    // value1 and value2 as arguments. Assign the return
    // value to the total variable.
    total = sum(value1, value2);

    // Display the sum of the values
    cout << "The sum of " << value1 << " and "
         << value2 << " is " << total << endl;
    return 0;
}

/*********************************************************
*                          sum                          *
* This function returns the sum of its two parameters. *
*********************************************************/
int sum(int num1, int num2) {
    return num1 * num2; // logical error. it returns product instead of sum..
}