#include <iostream>
using namespace std;
struct a{ 
 private:
   int id;
 public:
   a(void){ id=0; cout<<id<<" born\n"; }
   a(int kk){ id=kk; cout<<id<<" born\n"; }
   ~a(){cout<<id<<" is dying\n";}
   void talk(void){cout<<id<<" talking\n";}
};  // a is a struct 
void test1()
{  cout <<"enter test1\n";
   struct a x1(1);
   a x2(2);
   static a x3(3);
   x3.talk();
   cout <<"leaving  test1\n";
}
a a;   // static global, NOD good usage
struct a* p;  // just a pointer
int main()
{ cout << "===>Main begins\n";
  test1();
  test1();
  a.talk();
  p = new struct a(38);
  p-> talk( );
  cout << "===<Main ByeBye==="<<endl;
}// main(
/******
bsd2% g++ oolife.cpp
bsd2% ./a.out
0 born
===>Main begins
enter test1
1 born
2 born
3 born
3 talking
leaving  test1
2 is dying
1 is dying
enter test1
1 born
2 born
3 talking
leaving  test1
2 is dying
1 is dying
0 talking
38 born
38 talking
===<Main ByeBye===
3 is dying
0 is dying
************/