// ptr19.cpp 		By: Aiman Hanna -  ©1993-2006 Aiman Hanna

// This program fixes the memory leak problem of ptr18.cpp. What is the difference?  


#include "ptr18.h"


car::car(int doors, int cyl)
{		  
  num_doors = doors;
  num_cyl = cyl;
  car_model = new char[10];
}



char* car::GetModel() 
{
 return car_model;
}



void car::SetModel1(char* mdl) 
{
 strcpy(car_model, mdl);

}

void car::SetModel2(const char* mdl) 
{
	strcpy(car_model, mdl);
}


void car::SetModel3(char* mdl) 
{
 strcpy(car_model, mdl);
 *car_model = 'X';
}



void car::SetColor( avail_colors col)
{
 car_color = col;
}


char* car::GetColor()
{
 switch (car_color)
 {
 	case white: return "white";  
 	case black: return "black"; 
 	case green: return "green";  
 	case red:   return "red";  
 }
 return "unknown";
}


car::~car()
{
	cout << "Destructing" << endl;
	delete [] car_model;
}


int main()
{
car car_arr[3];		// Declare 3 car objects 

char *m1 = new char[4], *m2 = new char[5];
strcpy(m1, "BMW");
strcpy(m2, "BENZ");


car_arr[0].SetModel1( m1 );
car_arr[0].SetColor( green );

car_arr[1].SetModel2( "VW" );
car_arr[1].SetColor();

// Notice the output of the following call

car_arr[2].SetModel3( m2 );
car_arr[2].SetColor( black );

for (int i = 0; i < 3 ; i++)
   { 
  
   cout << "The model of car # " << i+1 << " is: " <<   car_arr[i].GetModel() << "\n";
   cout << " and its color is: "  <<  car_arr[i].GetColor()  << "\n";
  
   }

cout << endl << "m1 now is " << m1 << endl;
cout << "m2 now is " << m2 << endl;

delete [] m1;
delete [] m2;
return 0;

}                               





// The following is the result of compilation
//Compilation successful

// The following is the result of running the program
/*
The model of car # 1 is: BMW
 and its color is: green
The model of car # 2 is: VW
 and its color is: white
The model of car # 3 is: XENZ
 and its color is: black

m1 now is BMW
m2 now is BENZ
Destructing
Destructing
Destructing
*/