Re: [Boost-users] run-time integer log2

Subject: Re: [Boost-users] run-time integer log2
From: joel falcou (joel.falcou_at_[hidden])
Date: 2010-07-13 07:54:29

Tim Blechmann wrote:
> i see, maybe it would be an interesting addition to boost.integer to provide 
> a generic and efficient version, based on bsr/ffs or the like ...
>   
There is a lot of branchless or SWAR algorithm to salvaged from there 
and to be indeed made generic or at least platform independant w/r to 
various things. Other thign we never did is benching all of the versions 
of a given algorithm (with/without branch) on different platform to add 
a proper #ifdef/else to maximize performance.