C / C++ / MFC

• It doesn't really need to be deleted -- the program will clean it up when it exits. However, if you run the program in the DevStudio debugger, you'll get a message about a memory block that wasn't freed, which for this case is harmless, but it's better to not have it so that it's not confused with real leaks.
  
• You don't really need to make _poo a pointer to Poo. You can make it a Poo object directly:
  
  

  class Poo
  {
    static Poo _poo;
  };
   
  Poo Poo::_poo;

  
  

vector<int*> vect;
vector<int*>::iterator iter;

int a, b, c, d = 1;
vect.push_back(&a);
vect.push_back(&b);
vect.push_back(&c);
vect.push_back(&d);

for(iter = vect.begin();iter != vect.end(); iter++)
   cout << *iter << endl;

struct MyStruct
{
	int data;
};

void main()
{
	vector<MyStruct*> vect;
	vector<MyStruct*>::iterator iter;

	MyStruct a, b, c, d;
	a.data = 1;
	b.data = 2;
	c.data = 3;
	d.data = 4;
	
	vect.push_back(&a);
	vect.push_back(&b);
	vect.push_back(&c);
	vect.push_back(&d);

	for(iter = vect.begin();iter != vect.end(); iter++)
	   cout << (*iter)->data << endl;

}

vector<int*> vect;
vector<int*>::iterator iter;
int a, b, c, d = 1;
vect.push_back(&a);
iter = vect.begin();
vect.push_back(&b);
vect.push_back(&c);
vect.push_back(&d);
// and many more push_backs
for(;iter != vect.end(); iter++)
  cout << *iter << endl;