From: Lloyd Zusman <ljz@...>
Date: 2001-04-01T04:10:05+09:00
Subject: [ruby-talk:13393] Re: Passing an array to `exec'?

"Brian F. Feldman" <green@FreeBSD.org> writes:

> Lloyd Zusman <ljz@asfast.com> wrote:
> > 
> > [ ... ]
> > 
> > The above example shows `*' being used within a method definition,
> > not a method invocation, and I'd like to understand the exact
> > meaning of `*' when used this way in the argument list of a *call*
> > to a method.  [ ... ]
> > 
> > [ ... ]
> >
> > Thanks to all of you for your help.
> 
> Yep, that's exactly what it means.  Actually, it can happen in any
> one of several contexts, but the most important one is that it
> "flattens" an Array out into method arguments, just like you want.
> 
> E.g., try this:
> 
> [ ... ]
>
> $stdout.mysend(:puts,
> "Using * and & forms in the method definition coerces the
> argument list past that point or the block given
> (respectively) into a single variable.  Using them in
> a method call reverses this coercion, transforming
> *args into a parameter list and &block into a normal block.", "See?") {}

Yes, now it's perfectly clear.

Thank you very much.


> -- 
>  Brian Fundakowski Feldman           \  FreeBSD: The Power to Serve!  /
>  green@FreeBSD.org                    `------------------------------'

-- 
 Lloyd Zusman
 ljz@asfast.com