Re: [boost] [math] pow redux and observations

From: John Moeller (fishcorn_at_[hidden])
Date: 2008-05-22 18:42:26

Bruno Lalande <bruno.lalande <at> gmail.com> writes:

> 
> Hi,
> 
> > I think that you'll need a specialization for positive_power<1> *and*
> > positive_power<2> with this.  In fact, both of these otherwise generate a 4-
> > deep infinitely-recursive function call at runtime.  Starting at
> > positive_power<2>:
> >
> > positive_power<2>::result
> >  even_positive_power<2>::result
> >    positive_power<1>::result
> >      odd_positive_power<1>::result
> >        positive_power<2>::result
> 
> Actually I had those specializations in my code but didn't put them in
> the mail since their presence is almost obvious now (or, at least; I
> try at each new implementation to remove each of them and see the
> effect). I will put all them I my next mails to be explicit.

No need.  I just wanted to make sure that it was caught.  Honestly, even if you 
hadn't thought of it, you'd probably have caught it on testing anyway.  :-)  
Sorry for the noise.

John