Re: [boost] Re: Re: Re: Intrusive smart pointer

From: Peter Dimov (pdimov_at_[hidden])
Date: 2002-04-19 15:42:40

From: "Fernando Cacciola" <fcacciola_at_[hidden]>
>  int main()
> {
>   boost::intrusive_ptr<X> px(new X);  // obj's internal count=1
>   boost::intrusive_ptr<X> px2(px); // obj's internal count=2
>   boost::shared_ptr<X> px3(px2); // obj's internal count still =2,
detached
> count=1
>
>   px = 0; // obj's internal count=1
>   px2 = 0; // obj's internal count=0  -----> obj suicides itself....
>
> *px3 ;  // undefined behavior, pointee no longer alive.
>  }
>
> What I am missing?

Try it. :-)