Re: [Boost-users] Question about a vector of boost shared_ptr

8 May 2007


      ...
If I have an attribute of a vector of boost shared_ptr in a class, like
this:
class A;
class B {
public :
   ~B() { ...}
private:
std::vector< boost::shared_ptr<A> >  aVector;
};
What do I need to do in the destructor of B so that all the memory
used by a vector of shared_ptr of A  ('aVector') will be freed
correctly?
You dont need to do anything in there. If a instance of class B is
destroyed, the Vector B::aVector will be destroyed automaticly. If the
shared_ptr<A>s are the last shared_ptr<>s to this particular Instance of A,
A will also be destroyed. 
Even if the memory will be freed automaticly, you have to allocate it in the
begining, like: aVector.push_back(new A());
Kind Regards,
Manuel Jung
...
Thank you.