Re: [Boost-users] boost::bind - using boost::weak_ptr

Remigiusz Zukowski wrote: [...]

boost::function<void()> f2 = boost::bind( &class::method, wptr_from( some_weak_ptr ));

This works, but is unsafe - after get_pointer succesfully returns pointer to the object, the object is unlocked and can be deleted during class::method execution. Can anyone help me solving this problem ?

You can use template<class T> shared_ptr<T> sptr_from( weak_ptr<T> const & wpt ) { return shared_ptr<T>( wpt ); // throws on wpt.expired() } and then boost::function<void()> f2 = boost::bind( &class::method, boost::bind( &sptr_from<class>, some_weak_ptr ) ); It's a bit more typing, though.