#include <iostream>
#include <cstdlib>
#include <conio.h>

using namespace std;
class Location {
int longitude, latitude;
public:
Location() {}
// parameterized constructor
Location(int lg, int lt) {
longitude = lg;
latitude = lt;
}
void show() {
cout << "Longitude = " <<longitude << endl;
cout << "Latitude = " <<latitude << "\n";
}
void *operator new(size_t size); //overloaded new operator receive a parameter size of size_t
void operator delete(void *p); 
Location operator--(int x);
Location operator++(int x);
};
// new overloaded relative to loc.
void *Location::operator new(size_t size)  
{
void *p;
cout << "Overloaded new operator called...\n";
p = malloc(size);   // allocate memory through alloc 
return p;   // return the position 
}
// delete overloaded relative to loc.
void Location::operator delete(void *p)
{
cout << "Overload delete operator called...\n";
free(p);   // free the allocatated position 
}
// -- overloaded
Location Location::operator--(int x)
{
longitude--;    // decrement the longitude 
latitude--;    // decrement the latitude 
return *this;
}
// ++ overloaded
Location Location::operator++(int x)
{
longitude++;   // increment the longitude 
latitude++;  // increment the latitude 
return *this;
}

int main()
{
Location *p1 = new Location (10, 20);   
cout<< endl <<"Coordinates for Location 1 :" << endl;
p1->show();

cout<< endl <<"After applying overloaded ++ operator on Location 1"<<endl;
(*p1)++;
p1->show();

Location p2(30, 40);      
cout<< endl <<"Coordinates for Location 2 :" << endl;
p2.show();

cout<< endl <<"After applying overloaded -- operator on Location 2"<<endl;
p2--;
p2.show();

cout << endl;
delete p1;   // free the memory 

getch();
return 0;
}