Re: [boost] Re: [review] hash functions

From: Peter Dimov (pdimov_at_[hidden])
Date: 2005-03-12 18:23:59

Alberto Barbati wrote:
> Coming back to the hash library, I think we have only three choices:
>
> 1) use reinterpret_cast<> as I proposed, but documenting that it will
> produce a viable hash function only if the underlying implementation
> satisfy certain requirements (each specific implementation /should/
> document the behaviour of reinterpret_cast anyway, so the user may
> able to check)
>
> 2) provide the hash function (with reintepret_cast<>) only for those
> platforms that we are able to check in advance that will satisfy those
> requirements and make any use of such function produce a static assert
> for all other platforms
>
> 3) do not provide a hash function for pointers at all

I don't see why we should loose sleep over this. If the implementation 
doesn't work (meet the requirements for a hash function) on a platform that 
is supported by Boost, this is a bug and should be handled as any other bug.