Eric Blake wrote:
> if you fopen()/ftell()/fseek(,0,SEEK_END)/ftell(),
> then the stream should be positioned at the same place as the
> underlying fd, even though no I/O occurred, and without requiring
> an fflush() in the middle.
I'm adding your test program in the test suite. I verified that before
your patch [1/2], a testdir for the modules fseeko fflush fails:
test-fseeko3.c:45: assertion failed
FAIL: test-fseeko3.sh
and with the patch, it passes.
2011-08-09 Bruno Haible <br...@clisp.org>
More tests for 'fseeko'.
* tests/test-fseeko3.c: New file, from Eric Blake.
* tests/test-fseeko3.sh: New file.
* modules/fseeko-tests (Files): Add them.
(TESTS): Add test-fseeko3.sh.
(check_PROGRAMS): Add test-fseeko3.
--- modules/fseeko-tests.orig Wed Aug 10 00:09:48 2011
+++ modules/fseeko-tests Tue Aug 9 23:48:21 2011
@@ -2,6 +2,8 @@
tests/test-fseeko.c
tests/test-fseeko.sh
tests/test-fseeko2.sh
+tests/test-fseeko3.c
+tests/test-fseeko3.sh
tests/signature.h
tests/macros.h
m4/ungetc.m4
@@ -12,5 +14,5 @@
gl_FUNC_UNGETC_WORKS
Makefile.am:
-TESTS += test-fseeko.sh test-fseeko2.sh
-check_PROGRAMS += test-fseeko
+TESTS += test-fseeko.sh test-fseeko2.sh test-fseeko3.sh
+check_PROGRAMS += test-fseeko test-fseeko3
============================ tests/test-fseeko3.sh ============================
#!/bin/sh
./test-fseeko3${EXEEXT} 0 "$srcdir/test-fseeko3.sh" || exit 1
./test-fseeko3${EXEEXT} 1 "$srcdir/test-fseeko3.sh" || exit 1
exit 0
============================ tests/test-fseeko3.c =============================
/* Test of fseeko() function.
Copyright (C) 2011 Free Software Foundation, Inc.
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>. */
/* Written by Eric Blake <ebl...@redhat.com>, 2011. */
#include <config.h>
#include <stdio.h>
#include <stdlib.h>
#include "macros.h"
int
main (int argc, char **argv)
{
int do_initial_ftell = atoi (argv[1]);
const char *filename = argv[2];
FILE *fp = fopen (filename, "r");
ASSERT (fp != NULL);
if (do_initial_ftell)
{
off_t pos = ftell (fp);
ASSERT (pos == 0);
}
ASSERT (fseeko (fp, 0, SEEK_END) == 0);
{
off_t pos = ftell (fp);
ASSERT (pos > 0);
}
ASSERT (fclose (fp) == 0);
return 0;
}
===============================================================================
--
In memoriam Franz Jägerstätter <http://en.wikipedia.org/wiki/Franz_Jägerstätter>
