1 /* Test of fputc() function.
2 Copyright (C) 2011-2014 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 3, 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, see <http://www.gnu.org/licenses/>. */
21 #include "signature.h"
22 SIGNATURE_CHECK (fputc, int, (int, FILE *));
28 #include "msvc-inval.h"
33 main (int argc, char **argv)
35 const char *filename = "test-fputc.txt";
37 /* We don't have an fputc() function that installs an invalid parameter
38 handler so far. So install that handler here, explicitly. */
39 #if HAVE_MSVC_INVALID_PARAMETER_HANDLER \
40 && MSVC_INVALID_PARAMETER_HANDLING == DEFAULT_HANDLING
41 gl_msvc_inval_ensure_handler ();
44 /* Test that fputc() on an unbuffered stream sets errno if someone else
45 closes the stream fd behind the back of stdio. */
47 FILE *fp = fopen (filename, "w");
49 setvbuf (fp, NULL, _IONBF, 0);
50 ASSERT (close (fileno (fp)) == 0);
52 ASSERT (fputc ('x', fp) == EOF);
53 ASSERT (errno == EBADF);
58 /* Test that fputc() on an unbuffered stream sets errno if the stream
59 was constructed with an invalid file descriptor. */
61 FILE *fp = fdopen (-1, "w");
64 setvbuf (fp, NULL, _IONBF, 0);
66 ASSERT (fputc ('x', fp) == EOF);
67 ASSERT (errno == EBADF);
75 fp = fdopen (99, "w");
78 setvbuf (fp, NULL, _IONBF, 0);
80 ASSERT (fputc ('x', fp) == EOF);
81 ASSERT (errno == EBADF);