1 /* Test of fbufmode() function.
2 Copyright (C) 2007 Free Software Foundation, Inc.
4 This program is free software; you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by
6 the Free Software Foundation; either version 2, or (at your option)
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU General Public License for more details.
14 You should have received a copy of the GNU General Public License
15 along with this program; if not, write to the Free Software Foundation,
16 Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
18 /* Written by Bruno Haible <bruno@clisp.org>, 2007. */
26 #define ASSERT(expr) if (!(expr)) abort ();
28 #define TESTFILE "t-fbufmode.tmp"
36 /* Create a file with some contents. */
37 fp = fopen (TESTFILE, "w");
40 if (fwrite ("foobarsh", 1, 8, fp) < 8)
45 /* Open it for reading. */
46 fp = fopen (TESTFILE, "r");
48 if (setvbuf (fp, NULL, _IONBF, 0))
50 ASSERT (fbufmode (fp) == _IONBF);
52 if (setvbuf (fp, buf, _IOLBF, 5))
54 ASSERT (fbufmode (fp) == _IOLBF);
56 if (setvbuf (fp, buf, _IOFBF, 5))
58 ASSERT (fbufmode (fp) == _IOFBF);
65 fprintf (stderr, "Skipping test: file operations failed.\n");