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From: "jvdelisle at gcc dot gnu dot org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug libfortran/33863] backspace error on i386-pc-mingw32
Date: Sun, 04 Nov 2007 21:25:00 -0000 [thread overview]
Message-ID: <20071104212512.16341.qmail@sourceware.org> (raw)
In-Reply-To: <bug-33863-10129@http.gcc.gnu.org/bugzilla/>
------- Comment #6 from jvdelisle at gcc dot gnu dot org 2007-11-04 21:25 -------
OK, I have taken some time to investigate this. The problem is not MSYS
specific and also occurs with Cygwin.
I do not think we can fix this. Its not a gfortran bug.
The code is attempting to backspace a standard input stream. You can not seek
backwards on an input stream. The code happens to work in some cases because
input buffering happens to still contain the relevant data. Gfortran buffering
hides the stream but you can not rely on it depending on how far you have to
backspace
If I modify the code slightly and open the input file directly, it works
without error. This tels me its not a CR-LF issue. Any other opinions?
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33863
next prev parent reply other threads:[~2007-11-04 21:25 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-10-22 18:59 [Bug libfortran/33863] New: " dir at lanl dot gov
2007-10-22 18:59 ` [Bug libfortran/33863] " dir at lanl dot gov
2007-10-22 19:00 ` dir at lanl dot gov
2007-10-22 23:11 ` jvdelisle at gcc dot gnu dot org
2007-10-30 4:19 ` jvdelisle at gcc dot gnu dot org
2007-10-30 12:59 ` dir at lanl dot gov
2007-11-04 21:25 ` jvdelisle at gcc dot gnu dot org [this message]
2007-11-08 19:56 ` dir at lanl dot gov
2007-11-08 23:51 ` fxcoudert at gcc dot gnu dot org
2007-11-23 17:15 ` jvdelisle at gcc dot gnu dot org
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