#include <cstdlib>
#include <iostream>

using namespace std;
/*
1. Podaj przykład i omów przeładowanie operatora ++
* przyrostkowego
* przedrostkowego 
*/

class wektor {
      public:
      int x;
      int y;
      int z;
      wektor(int a = 0, int b = 0, int c = 0)
         : x(a), y(b), z(c) {}; // konstruktor domniemany
      };


// This increment operator is rather odd.
// It takes an wektor by value and then makes a new local wektor that to witch
// the elements of A, each with 1 added, is added. Then the local wektor is
// returned.
// Usuallay - and that seems to be indicated by the main function as well -
// increment operator updates the argument in place. This operation I would
// describe as A + 1 and implement using operator+.
wektor operator++(wektor A){
       wektor temp;
       temp.x = A.x+1;
       temp.y = A.y+1;
       temp.z = A.z+1;
       return temp;
       }

// In the postincrement case it is normal to tke a copy of the argument, but still
// update the argument inplace and then return the unaltered copy.
wektor operator++(wektor A, int){
       wektor temp;
       temp.x = A.x+1;
       temp.y = A.y+1;
       temp.z = A.z+1;
       return temp;
       }
       
ostream& operator<<(ostream& ekran, wektor odc){      // przeladowany operator <<
         ekran<<"x= "<<odc.x<<endl;
         ekran<<"y= "<<odc.y<<endl;
         ekran<<"z= "<<odc.z<<endl;
         return ekran;
         } 
       
       
int main(int argc, char *argv[])
{
    wektor pierwszy;
    cout<<pierwszy;
    cout << // Added to show what is going on
    ++pierwszy;
    cout<<pierwszy;
    cout << // Added to show what is going on
    pierwszy++; 
    cout<<pierwszy;
    
    system("PAUSE");
    return EXIT_SUCCESS;
}