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Date: Sun, 14 Jul 2013 02:33:55 -0400
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From: DJ Delorie <dj AT delorie DOT com>
To: djgpp AT delorie DOT com
In-reply-to: <51E200D7.1050800@gmx.de> (message from Juan Manuel Guerrero on
	Sun, 14 Jul 2013 03:37:27 +0200)
Subject: Re: A question about the ferror behavior
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My guess is that a DOS read() will error on a file opened for writing.
For read/write access to a file, you should have "w+" instead.

(the error flag looks to be set due to the raw error from _read(), but
that error itself isn't stored, so you'd have to add something to the
library to see the raw OS error)