New operator overloading issue

[Mihulik]

Hi,
I'm trying to achieve something like this:

I have struct Node.

struct Node{
Node* parent; //null if it is root
Node* children; //0 - x
};

Futher I have ManagedObject class.

class ManagedObject{
private:
static Node* roots;

public:
virtual void* operator new(size_t size){
//And here is problem. I need:
//a)If new is called for "main object" place new node into roots (parent == null)
//else b) if new is called for "member scope object" look for "main object"'s root node and set this node as its children.
}
};

My explanation is maybe chaotic so I show you example:

class A : public ManagedObject{
private:
ManagedObject* nestedObject;

public:
A(){
nestedObject = new ManagedObject;
}
};

in another part of program:

...
ManagedObject* some = new A;
...

So new operator should place root node for "some" and simultaneously it should create node for "nestedObject" and set it as child of previous root node.




Is it possible?


Thank you

[firedraco]

Generally, you would just use some sort of smart pointer (like the STL's or Boost's) rather then inheriting from a base class.

[Mihulik]

I am trying to implement my GC (http://iwi.eldoc.ub.rug.nl/root/2007/SciCompProgGao/) for ManagedObject.
However, I'm still thinking over how I should implement it.