Re: [boost] Generic copy-on-write infrastructure in boost?

Subject: Re: [boost] Generic copy-on-write infrastructure in boost?
From: Jarrad Waterloo (jwaterloo_at_[hidden])
Date: 2009-08-13 08:33:12

Jason Dictos wrote:
> Hi,
>
>                 I'm looking for a way to implement a project using some copy-on-write feature, similar to how STL strings use reference counters to prevent needles copying of data. Is there anything in boost to help me out with this?
>
> -Jason
>
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Check out Flyweight which was made a part of Boost in Version 1.38. As 
far as optimizations, Boost already have shared_ptr enhancements that 
are undergoing standardization where the control block is merged with 
the object pointed to; whether or not Flyweight takes advantage of this 
is a different matter. The only thing missing is the small object 
optimization.