///////////////////////////////////////////////////////////////////////////////
// OVERLOADED STREAM EXTRACTION OPERATOR '>>' (input) /////////////////////////
///////////////////////////////////////////////////////////////////////////////
istream& operator>>(istream& iStreamObj, fractionType& fracObj)
{


// NO EXCEPTION HANDLING //////////////////////////////////////////////////////
/*
    cout << " CALLING OVERLOADED STREAM EXTRACTION OPERATOR: >> (input) \n";
    cout << " ENTER NUMERATOR:        ";
    iStreamObj >> fracObj.numer;
    cout << "                     ----------\n";
    cout << " ENTER DENOMINATOR:      ";
    iStreamObj >> fracObj.denom;
    return iStreamObj;
*/


// ATTEMPT #1  --  BROKEN EXCEPTION HANDLING //////////////////////////////////

    cout << " CALLING OVERLOADED STREAM EXTRACTION OPERATOR: >> (input) \n";
    try
    {
        cout << " ENTER NUMERATOR:        ";
        iStreamObj >> fracObj.numer;
        cout << "                     ----------\n";
        cout << " ENTER DENOMINATOR:      ";
        iStreamObj >> fracObj.denom;

        if (fracObj.denom == 0)
        {
            cout << " fracObj.denom == 0\t";
            throw fracObj.denom;
        }
        if (fracObj.denom < 0)
        {
            cout << " fracObj.denom < 0\t";
            throw string("Negative denominator!");
        }
        if ((fracObj.numer <= 255) && (isalpha(fracObj.numer) != 0))
        {
            cout << " fracObj.numer <= 255 && isalpha(fracObj.numer) != 0\t";
            throw static_cast<char>(fracObj.numer);
        }
        if ((fracObj.denom <= 255) && (isalpha(fracObj.denom) != 0))
        {
            cout << " fracObj.denom <= 255 && isalpha(fracObj.denom) != 0\t";
            throw static_cast<char>(fracObj.denom);
        }



        return iStreamObj;
    }
    catch (int err)                 // WORKING
    {
        cout << " ERROR!  --  ZERO DENOMINATOR NOT ALLOWED! \n";
        fracObj.numer = NULL;
        fracObj.denom = NULL;
    }
    catch (string err)              // NOT WORKING ALL THE TIME
    {
        cout << " ERROR!  --  NEGATIVE DENOMINATOR NOT ALLOWED! \n";
        fracObj.numer = NULL;
        fracObj.denom = NULL;
    }
    catch (...)                     // NOT WORKING
    {
        cout << " ERROR!  --  INVALID DATA TYPE! ONLY INTEGERS ALLOWED! \n";
        fracObj.numer = NULL;
        fracObj.denom = NULL;

        //cin.clear();                                                  // DOES NOT WORK
        //cin.ignore(numeric_limits<streamsize>::max(), '\n');          // DOES NOT WORK
        //iStreamObj.clear();                                           // DOES NOT WORK
        //iStreamObj.ignore(numeric_limits<streamsize>::max(), '\n');   // DOES NOT WORK
    }



// ATTEMPT #2  --  ALTERNATE METHOD? //////////////////////////////////////////
/*
    cout << " CALLING OVERLOADED STREAM EXTRACTION OPERATOR: >> (input) \n";
    cout << " ENTER NUMERATOR:        ";
    iStreamObj >> fracObj.numer;
    cout << "                     ----------\n";
    cout << " ENTER DENOMINATOR:      ";
    iStreamObj >> fracObj.denom;
    return fractionType(fracObj.numer, fracObj.denom);      // TRYING TO USE CONSTRUCTOR
*/
}