From: Brian Candler <B.Candler@...>
Date: 2004-09-19T03:01:03+09:00
Subject: Re: [Nuby Question] Return value of while loop.

On Sat, Sep 18, 2004 at 05:32:02PM +0100, Brian Candler wrote:
> Perhaps you should reword your question as:
> 
> # x is initialised to an Integer
> i = 1
> loop do
>   i *= 2
>   break i if i > x
> end
> 
> in which case the smallest I can think of is:
> 
> i=1
> i*=2 while i<=x
> i

Ah, I forgot ||= to initialise, so if you're counting lines rather than
characters:

i*=2 while (i||=1)<=x
i

Of course, i<<=1 might be microscopically faster. But it's also one
character longer :-)

Brian.