Re: [Boost-users] [SmartPtr] local_weak_ptr?

Subject: Re: [Boost-users] [SmartPtr] local_weak_ptr?
From: Gavin Lambert (gavinl_at_[hidden])
Date: 2017-12-10 22:09:54

On 9/12/2017 04:19, Rob Conde wrote:
> How are boost::local_shared_ptr and boost::weak_ptr intended to be used 
> together? I expected a local_weak_ptr, but it's not there so I'm 
> wondering how you would (correctly) use local_shared_ptr and weak_ptr, 
> or if you need local_weak_ptr and this is just still on the TODO list?

You can construct a shared_ptr from a local_shared_ptr and then 
construct a weak_ptr from that.

Since local_shared_ptr isn't threadsafe, I *think* the intended use is 
to keep shared_ptr/weak_ptr in data structures that might be shared 
between threads, and copy to local_shared_ptr instances for purely 
thread-local data structures, in that order.  But that's just an 
inference; I don't have any direct knowledge of the motivation.