Re: [Boost-users] Visitor Pattern Implementation

Subject: Re: [Boost-users] Visitor Pattern Implementation
From: Frank Mori Hess (fmhess_at_[hidden])
Date: 2008-11-06 21:35:02

On Thursday 06 November 2008 17:23, Rodrigo Madera wrote:
> Dear community,
>
> Is there any implementation/helper/inspiration/or-alike in Boost for the
> Visitor Pattern?
>
> I know of Boost Signals, which is awesome, but (as stated in the FAQ)
> it's not Thread-safe (yikes!).

Do you mean the Observer pattern, or are you just talking about 
boost::visit_each?  I'm not aware of anything about visit_each that makes 
it inherently unusable in a multi-threaded program.  Boost.Variant uses 
visitors.  You could look at the BGL too, which also uses visitors.