Re: [boost] Re: shared_ptr: unsafe, or am I crazy?

From: Thomas Maeder (maeder_at_[hidden])
Date: 2002-01-18 15:30:27

Am 2002.01.18 20:41 schrieb(en) Peter Dimov:
> Possible, but inconvenient. There is no good reason to introduce
> undefined
> behavior here. Consider:
> 
> shared_ptr<Derived> d(new Derived);
> shared_ptr<Base> b(d);
> b.reset();
> d.reset();
> 
> The second line is the same but it now works (with the current
> implementation.)

Is there a realistic use case where the second line is needed / useful 
in a class hierarchy without a virtual base class destructor?