Question

I have already object of CCompositePrimitive class in Main.cpp

int main()
{
    ...
    CCompositePrimitive DrawObjects;
    ...
}

The CCompositePrimitive class has field:

private:
 list<CDrawObject*> m_Objects;

and method:

public:
 Add(...);


void CCompositePrimitive::Add() {
 Objects.push_back(new Rectangle(...))
}

On some forums ask me that DrawObjects object will be stored in heap. But I think else. In my opinion DrawObjects object will be stored in stack.
How I can preserve computer’s memory of stack overflow (any different memory problems), if DrawObjects can store in list m_Objects; very many objects, which can content CCompositePrimitive objects too (composite pattern).

Answer 1

Depends on how the class where CCompositePrimitive m_DrawOjects; is stored in gets created. (I assume it’s stored inside a class because of the m_)
If your class is created on the stack, then m_DrawObjects will be too. If your class is created on the heap, so will be m_DrawObjects.
But indifferent of wether m_DrawObjects is created on the heap or the stack, the objects inside the list<CDrawObject*> m_Objects; will be created on the heap, because that’s how a linked list works.

Edit: According to your edit and comment, then DrawObjects is of course created on the stack. 🙂 But what I said about the objects inside the list still holds true.