///////////////////////////////////////////////////////////
// Softwarebauelemente I, Aufgabe M5.1
//
// author:			Stephan Brumme
// last changes:	November 20, 2000


// import cout to display some data
#include <iostream>

// open std namespace
using namespace std;



// Data structure representing a room unit
struct TRoom
{
	int NumberOfRooms;
	int Area;
};



// Initializes the TRoom structure
void Init(TRoom &roo, int nor, int ar)
{
	roo.NumberOfRooms = nor;
	roo.Area = ar;
}


// Compares two exemplars
// returns "true" if attributes of both are equal; "false" otherwise
bool EqualValue(TRoom roo1, TRoom roo2)
{
	return ((roo1.Area == roo2.Area) &&
		    (roo1.NumberOfRooms = roo2.NumberOfRooms));
}


// Copies the attributes of roo2
// returns "true" if successful, "false" if no memory allocated
bool Copy(TRoom* roo1, TRoom roo2)
{
	if (roo1 == NULL)
		return false;

	roo1->Area = roo2.Area;
	roo1->NumberOfRooms = roo2.NumberOfRooms;
	return true;
}


// Returns the NumberOfRooms attribute
int GetNumberOfRooms(TRoom roo)
{
	return roo.NumberOfRooms;
}


// Sets the NumberOfRooms attribute
void SetNumberOfRooms(TRoom &roo, int nor)
{
	roo.NumberOfRooms = nor;
}


// Returns the Area attribute
int GetArea(TRoom roo)
{
	return roo.Area;
}


// Displays the attributes
void Show(TRoom roo)
{
	cout<<"Es sind "<<roo.NumberOfRooms<<" Raeume mit einer Flaeche von "<<roo.Area
		<<"."<<endl;
}



void main()
{
	TRoom Wohnheim;
	TRoom ZuHause;

	Init(Wohnheim, 1, 20);
	Init(ZuHause, 5, 75);

	cout<<"Wohnheim: ";
	Show(Wohnheim);

	cout<<"Zu Hause: ";
	Show(ZuHause);

	cout<<endl;

	if (EqualValue(Wohnheim, ZuHause))
		cout<<"Muttersöhnchen !"<<endl;
	else
		cout<<"Party People !"<<endl;

	cout<<endl;

	cout<<"Im Wohnheim sind es "<<GetArea(Wohnheim)<<"qm in "
		<<GetNumberOfRooms(Wohnheim)<<" Zimmer(n)."<<endl;

	cout<<endl;

	SetNumberOfRooms(Wohnheim, 2);
	cout<<"Wenn ich eine Trennwand hinstelle, habe ich ploetzlich "
		<<GetNumberOfRooms(Wohnheim)<<" Zimmer !"<<endl;
}