Two pointers point to the same refernce [closed]

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I have a question about the pointers

I have two pointers, one is initialized and the other is not;

Now i want the second pointer that has no value (is not initialized yet) to point to the same place in the memory.

OK, i wrote a small program to do this and it works correctly

int *P , *P2 ; 
P = new int ; 
P2 = new int ; 

*P = 1 ; 
P2 = P ; 
cout << "P= " << *P << endl << endl ; 
cout << "P2= " << *P2 << endl << endl ; 

*P = 0 ;
cout << "P2= " << *P2 << endl << endl ;  

The output is like this:

P = 1 ; 
P2 = 1 ; 

P2 = 0 ; 

So it work correct like i want.

Now i want to do the same but this time i want to do it using ID3D11Device *

Here is the code:

 ID3D11Device *Test ;
 Test = Device->Get_Device() ; 


cout << "Test =" << Test << endl << endl ; 
cout << "Get = " << Device->Get_Device()<< endl << endl ; 


Device->~CL_Device();

cout << "Test =" << Test << endl << endl ; 
cout << "Get = " << Device->Get_Devic开发者_开发问答e()<< endl << endl ; 

Get_Device function definition :

![ID3D11Device  *const Get_Device()  const     { return  _Device ;}][1]

schema explaining what i want.

---

First, you should avoid calling the destructor of an object directly. That does not free the memory associated with it. Use delete Device; instead.

Secondly, if you want two pointers you simply have to proceed as you hav shown in your first example:

ID3D11Device *Test, *Test2;
Test = Device->Get_Device();
Test2 = Test;

now Test, Test2 and Device->Get_Device() all point to the same location in the memory of course only if Device->Get_Device() returns always the same pointer.

EDIT: see comment