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From: Andreas Schwab <schwab AT suse DOT de>
To: Eric Blake <ebb9 AT byu DOT net>
Cc: Eli Zaretskii <eliz AT gnu DOT org>, cygwin AT cygwin DOT com, henman AT it DOT to-be DOT co DOT jp,
   emacs-devel AT gnu DOT org
Subject: Re: New platform independent problem
References: <43D0797C DOT 1030604 AT it DOT to-be DOT co DOT jp> <ur773qhq5 DOT fsf AT gnu DOT org> 	<Pine DOT GSO DOT 4 DOT 63 DOT 0601200821540 DOT 17119 AT access1 DOT cims DOT nyu DOT edu> 	<uoe27q9y6 DOT fsf AT gnu DOT org> <43D0F12A DOT 4000202 AT byu DOT net>
X-Yow: Hello?  Enema Bondage?  I'm calling because I want to be happy, I guess..
Date: Fri, 20 Jan 2006 22:24:29 +0100
In-Reply-To: <43D0F12A.4000202@byu.net> (Eric Blake's message of "Fri, 20 Jan 	2006 07:18:18 -0700")
Message-ID: <jeoe267fua.fsf@sykes.suse.de>
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Eric Blake <ebb9 AT byu DOT net> writes:

> What platforms use d_ino==0 to mean an empty entry, rather than an entry
> where st_ino must be checked?

This is traditional Unix behaviour.  The original dirent structure (which
was actually struct direct from <sys/dir.h>) directly matched the contents
of the directory file on disk, and an entry was deleted by setting d_ino
to zero.  Modern implementations of the dirent functions hide this detail
from the user and never return entries with d_ino == 0 any more.

Andreas.

-- 
Andreas Schwab, SuSE Labs, schwab AT suse DOT de
SuSE Linux Products GmbH, Maxfeldstraße 5, 90409 Nürnberg, Germany
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