Re: [boost] Interest request for pointer+bit compression optimization

Subject: Re: [boost] Interest request for pointer+bit compression optimization
From: Stefan Strasser (strasser_at_[hidden])
Date: 2009-09-07 17:01:32

Am Monday 07 September 2009 19:42:57 schrieb Neil Groves:

> > It would be a nice to have IMHO, but there is a huge work of testing to
> > make
> > it safe and reliable.
>
> Agreed.

if you wanted to exploit system implementation specific free bits.
detecting the alignment of pointers seems to be possible reliably and 
statically, otherwise boost intrusive and STL implementations wouldn't use 
it.
that's 2-3 free bits on aligned 32/64 bit platforms.