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Re: Modifying a hook while it's being executed

From: Henrik Enberg
Subject: Re: Modifying a hook while it's being executed
Date: Mon, 8 Aug 2005 22:34:44 +0200 (CEST)

> From: address@hidden
> Date: 8 Aug 2005 13:21:13 -0700
> rgb wrote:
> >
> > This line appears in remove-hook.
> >
> > (setq hook-value (delete function (copy-sequence hook-value)))
> >
> > It makes me think that a change to the hook's value will not
> > be visible to the present execution of the run-hooks command.
> > So I'd say it appears to be perfectly safe.
> Yes, it seems OK. However I wonder why it is not simply
>   (setq hook-value (remove function hook-value))
> remove also returns a copy. Is there a difference?

`remove' is part of the cl library which isn't supposed to be used in
core Emacs.

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