//***********************************************************************
// Float_error2.cpp
//
// this is program experiments with floating point computations and 
//  the limitations of the digital representations of floating point
//  numbers.
//
//***********************************************************************
// INPUTS: an initial floating point value in input from the keyboard
//
// OUTPUTS: the computational results are displayed on the screen
//
//***********************************************************************
//  WARNING: none
//
//***********************************************************************
// IMPLEMENTATION NOTE: none
//
//***********************************************************************
// created by: j. aleshunas
// created on: 26 may 04
// modified on: 26 may 04
//
// © 2004 John Aleshunas
//
//***********************************************************************

#include "Float_error2.h"

void main(void) {

    // storage for a float value
    float fStarting_value;

    // get an initial float value
    cout << "Enter an inintial float value: ";
    cin >> fStarting_value;
    cout << endl << endl << endl;
    // create the float number instance for this session
	Float_store fclFloat_value(fStarting_value);

    // storage for a character value to pause the screen display
    char cPause;
    
	// the bNot_finished flag controls the main menu loop
	bool bNot_finished = true;

	// the menu selection
	int iMenu_selection;

	// start a while loop toggled by the bNot_finished flag
	while(bNot_finished) { // infinite loop

		cout << endl;
		cout << " What do you want to do?" << endl;
		cout << endl;
		cout << "     1. Square the float value" << endl;
		cout << "     2. Root the float value" << endl;
		cout << "     3. Quit" << endl;
		cout << endl;
		cout << " Enter your selection --> ";
		cin >> iMenu_selection;
		cout << endl;

		// actions for each menu selection
		switch(iMenu_selection) {

			case 1: // multiply the float number
				fclFloat_value.Square();
                cout << fclFloat_value.Display_value() << endl; // display the result
                cout << "Press a charter to continue  ";
                cin >> cPause;
                cout << endl << endl << endl;
				break;

			case 2: // divide the float number
				fclFloat_value.Root();
                cout << fclFloat_value.Display_value() << endl; // display the result
                cout << "Press a charter to continue  ";
                cin >> cPause;
                cout << endl << endl << endl;
			    break;

            case 3: // set the loop flag to quit looping
				bNot_finished = false;
				break;

			default: // display and error message for invalid menu selections
				cout << endl;
				cout << iMenu_selection << " is not a vaild menu selection";
				cout << endl;
				cout << "Please make a valid choice";
				cout << endl << endl;
		}// switch
	}// while
	return;  // that's all folks
}// main()