Re: [boost] accurate sum accumulator (kahan)

Subject: Re: [boost] accurate sum accumulator (kahan)
From: David Abrahams (dave_at_[hidden])
Date: 2010-07-26 11:51:28

At Mon, 26 Jul 2010 16:20:16 +0100,
Paul A. Bristow wrote:
> 
> > -----Original Message-----
> > From: boost-bounces_at_[hidden] [mailto:boost-bounces_at_[hidden]] On Behalf Of David Abrahams
> > Sent: Monday, July 26, 2010 3:10 PM
> > To: boost_at_[hidden]
> > Subject: Re: [boost] accurate sum accumulator (kahan)
> > 
> > At Mon, 26 Jul 2010 14:59:29 +0100,
> > Paul A. Bristow wrote:
> > > PS As for naming, I'd vote for sum and accurate_sum (to keep backward compatibility).
> > 
> > It's possible I'm completely off the mark here, but I think maybe we
> > want sum and quick_sum.
> 
> This would be ideal - but doesn't accumulator already use 'sum' so it would change behaviour of existing programs?

Technically, of course it would, but aren't they getting the wrong answer currently?

-- 
Dave Abrahams
BoostPro Computing
http://www.boostpro.com