From: Robert Klemme <bob.news@...>
Date: 2004-05-31T21:08:37+09:00
Subject: Re: elegant way to say "try this thing, one at a time, until condition is met"


"Dmitry V. Sabanin" <sdmitry@lrn.ru> schrieb im Newsbeitrag
news:200405311648.43813.sdmitry@lrn.ru...
> On Monday 31 May 2004 16:31, David Garamond wrote:
> > Example: I need to unmount /usr and /usr2, but currently I can't because
> > there are some opened files from those partitions. I am going to try
> > shutting down daemons or killing some processes (or other things), one
> > at a time, until I can unmount it.
> Sorry if that's not what you want, but i had this idea when I read your
post:
>
> # emulating condition
> $counter = 0
> def cond_met
>   $counter += 1
>   $counter > 1 ? true : false
> end

Just a sidenote: you don't have to convert the result of a boolean
expression to boolean by means of the ternary operator.  This will do
exactly the same:

def cond_met
  ( $counter += 1 ) > 1
end

Regards

    robert