Re: [boost] [tokenmap] updated perfect hash container in sandbox

Subject: Re: [boost] [tokenmap] updated perfect hash container in sandbox
From: Slawomir Lisznianski (sl_at_[hidden])
Date: 2010-04-21 13:18:44

strasser_at_[hidden] wrote:
> why is the mapped_type stored by pointer to allocated object instead of 
> by value?

next release (in the works) renames tokenmap to ptr_tokenmap, and a new 
  tokenmap comes in its place with by-value semantics.

> I think the "randomized part" could be provided by the user, if the key 
> is a std::pair<index_part, user_part>.

Correct. Next release delegate to an external randomizer. Presumably 
users will plug Boost Random Number.

> btw, a similar technique (but without the iterating and the randomizing 
> part) is employed in my implementation of thread_specific_ptr:
> http://www.boostpro.com/vault/index.php?action=downloadfile&filename=tss.hpp&directory=& 

Interesting... thanks for the hint.

> that would be another use case of your container if it is configurable 
> enough in the final version.

It shall be. Also, thanks for bullet-point examples of analogous 
operations. It summarized it all well.

-sl