Re: [Rd] attributes of environments

From: Gabor Grothendieck <ggrothendieck_at_gmail.com>
Date: Wed 05 Jul 2006 - 16:10:02 GMT

On 7/5/06, Thomas Lumley <tlumley@u.washington.edu> wrote:
> On Tue, 4 Jul 2006, Gabor Grothendieck wrote:
>

> > In the code below, e is an environment which we copy to f and then
> > add attributes to e. Now f winds up with the same attributes.
> >
> > In other words it seems that the attributes are a property of the
> > environment itself and not of the variable. Thus it appears we
> > cannot have two environment variables that correspond to the
> > original environment but with different attributes.
>
> No, we can't. The two variables are references to the same environment, so
> they are the same.
>
> If you want the attributes to be copies rather than references then create
> a list with the environment as an element and put the attributes on the
> list.

I realize that that is how it works but what I was really wondering was should it work that way?



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