Re: [boost] [smart_ptr] refactored enable_shared_from_this

Daniel Frey:

I refactored enable_shared_from_this in order to remove the _owner flag.

To test it, you need a small and straight-forward addition to detail::weak_count: It needs .empty(), similar to detail::shared_count.

Are you sure that you need to test for emptiness instead of expiration? X x; // derives from esft shared_ptr<X> p1( &x, null_deleter() ); p1->shared_from_this(); // OK p1.reset(); shared_ptr<X> p2( &x, null_deleter() ); p2->shared_from_this(); // ??