/********************************************************************
* File: CST116-Ch9-Debugging.cpp
*
* General Instructions: Complete each step before proceeding to the
* next.
*
* Debugging Exercise 1
*
* 1) Insert a breakpoint on the lines indicated in the code.            Done
* 3) Place a watch on age and days.                                     Done
* 4) Add another watch using &age for the name. This will display   
*    the address of age.                                                Done
* 5) Write down the address of age.                                     0x001df6e4{0}
* 6) Step Into the code for the function GetAge.                        Done
* 7) The execution continues to the function header for GetAge.         Yes, it did.
* 8) Step into one more time.                                           Done
* 9) Why did the address of age and value change?                       Because it calculated and result saved in different location.
* 10) Step over the cout and cin statements.                            Done               
* 11) Verify the value entered is stored properly in age.               Yes. it is.
* 12) Step into until the flow returns to main.                         Done
* 13) Step over one more time.                                          Done
* 14) Why didn't the value entered get transferred back to main?        It should be age = GetAge(); but age was omitted.
* 15) Stop debugging and fix the error.                                 Done
* 16) Run to Breakpoint 1.                                              Done
* 17) Step over the function call to GetAge.                            Done
* 18) Verify that the value entered was returned and stored             Yes, it did.
*     correctly from GetAge.
* 19) Stop debugging.
*
* Debugging Exercise 2
*
* 1) Run to Breakpoint 1.                   Done
* 2) Step over the call to GetAge.          Done
* 3) Step into CalcDays.                    Done
* 4) Step into one more time so that the current line is the
*    calculation.                           Done
* 5) Why is age greyed out in your watch window? Because its value is deleted.
* 6) Stop debugging.
*
* Debugging Exercise 3
*
* 1) Run to Breakpoint 2.                                               Done
* 2) When asked, enter the value of 20 for your age.                    Done
* 3) Verify that the variable age is 20 and the variable days           Yes. it is
*    is 7300.
* 4) Step into the PrintResults function.                               Done
* 5) Age is 7300? Not even Ralph is that old.                           Because the two parameters places were switched.
* 6) Why did the values for both variables change?                      
* 7) Stop debugging and fix the error.
*
* Debugging Exercise 4
*
* 1) Run to Breakpoint 2.                                               Done
* 2) Display your Call Stack window.                                    Done
* 3) View the contents of the window and notice that the top            Done
*    function on the stack is main.
* 4) Step into the PrintResults function.                               Done
* 5) Notice that the call stack now shows PrintResults on top of        Done
*    the stack.
********************************************************************/
#include <iostream>
using std::cout;
using std::cin;
using std::endl;

const int DAYS_PER_YEAR = 365;

int GetAge();
int CalcDays(int age);
void PrintResults(int age, int days);

int main()
{
    int age = 0;
    int days = 0;

    age = GetAge();
    days = CalcDays(age);

    // Breakpoint 2
    // Put breakpoint on the following line
    PrintResults( days, age);

    return 0;
}
int GetAge()
{
    int age = 0;

    cout << "Please enter your age: ";
    cin >> age;

    return age;
}
int CalcDays(int years) 
{
    int days = 0;

    days = years * DAYS_PER_YEAR;

    return days;
}
void PrintResults(int days, int age)
{
    cout << age << "! Boy are you old!\n";
    cout << "Did you know that you are at least " << days << " days old?\n\n";
}