2009/10/1 Daniele Barzotti
Hi,
I've a doubt about shared_ptr... Suppose to have something like this:
template<typename T> class Interface {..pure virtual..}
template<typename T> class Impl1 : public Interface<T> {....}
template<typename T> class Impl2 : public Interface<T> {....}
class A { public: Interface<int>* GetObjPtr() { return &obj; }
private: Impl2<int> obj; };
class B { ~B() { delete a_ptr; }
B() { a_ptr = new A; Int_ptr.reset( a_ptr->GetObjPtr );
I assume you mean Int_ptr.reset( a_ptr->GetObjPtr() );
}
private: A* a_ptr; shared_ptr< Interface<int> > Int_ptr; };
Where B creates and use A on its internal. In this case, is 'delete' called twice for Impl2?
Yes. When you passed a pointer to shared_ptr, you don't own this pointer anymore, so you shouldn't delete it manually. Roman Perepelitsa.