From: Pierre-Charles David <Pierre-Charles.David@...>
Date: 2001-11-21T23:03:06+09:00
Subject: [ruby-talk:26017] Re: positive

Tobias Reif <tobiasreif@pinkjuice.com> writes:

> Mark Slagell wrote:
> 
> 
> > class Numeric
> > def pos
> >   if self>0 then self else 0 end
> > end
> > end
> > 10.pos -> 10
> > -10.pos -> 0
> 
> 
> very nice; I'd like to use that. But how can I
> p (10-40).pos
> ?
> I get
> " undefined method `pos' for nil (NameError)"
> ruby 1.6.3 (2001-03-19) [i386-cygwin]

Ruby parses it as (p(10-40)).pos, and p returns nil.
Try p((10-40).pos) instead.
It might be different under 1.7.x.

-- 
Pierre-Charles David (pcdavid <at> emn <dot> fr)
Computer Science PhD Student, �cole des Mines de Nantes, France
Homepage: http://purl.org/net/home/pcdavid