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From: Eli Zaretskii <eliz@elta.co.il>
Newsgroups: gmane.emacs.devel
Subject: Re: autorevert.el
Date: 15 Mar 2004 09:04:03 +0200
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References: <200403022319.i22NJbG01259@raven.dms.auburn.edu>	<jwvsmgq1323.fsf-monnier+emacs/devel@asado.iro.umontreal.ca>	<200403040508.i2458W811551@raven.dms.auburn.edu>	<jwvsmgoic0l.fsf-monnier+emacs/devel@asado.iro.umontreal.ca>	<200403050400.i2540VQ21715@raven.dms.auburn.edu>	<200403130310.i2D3A8w28676@raven.dms.auburn.edu>	<jwvptbf10rq.fsf-monnier+emacs@asado.iro.umontreal.ca>
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> Date: Sun, 14 Mar 2004 18:08:03 -0600 (CST)
> From: Luc Teirlinck <teirllm@dms.auburn.edu>
> 
> Stefan Monnier wrote:
> 
>    How does the code figure out whether auto-reverting the buffer is needed?
>    I mean, there's no visited-time to check, right?
> 
> For dired buffers, visited-file-modtime works

Only on Posix systems, btw.  On MS-Windows, the directory's time
stamp does not change when you add or remove files.