Re: [boost] If boost::fusion is the hammer, then what's the nail?

From: Gennadiy Rozental (gennadiy.rozental_at_[hidden])
Date: 2006-12-15 00:51:11

"David Abrahams" <dave_at_[hidden]> wrote in message 
news:87lkl93hlx.fsf_at_pereiro.luannocracy.com...
> "Gennadiy Rozental" <gennadiy.rozental_at_[hidden]> writes:
>
>> This is not clear cut. I do not see in theory why any boost::variant 
>> based
>> algorithm couldn't be optimized to almost the same code (module type
>> switching). On the other hand excessive usage of tuples will cause
>> appropriate code bloat, eventually leading to code slow down.
>
> Not clear cut at all.  When operating on a sequence where all the
> types are different, the version with variant will be both slower and
> larger.

I love these performance "estimations"

Do you have any numbers to sustain this?