Re: [Boost-users] [math][special_functions] Why is cbrt(x) slowerthanpow(x, 1/3)?

Subject: Re: [Boost-users] [math][special_functions] Why is cbrt(x) slowerthanpow(x, 1/3)?
From: John Maddock (john_at_[hidden])
Date: 2010-01-18 04:39:39

> As I recall, MSVC saved and restores the floating point rounding type
> on most floating point calls like that, which causes its speed hit,
> you can work around it by making your own in assembly or use SSE or
> so, as I recall that is...

Nod... we even have most of the tools required in Johan Rades floating point 
utils, but there are more important fist to fry for now...

John.