1/* Copyright (C) 2021-2022 Free Software Foundation, Inc.
2 This file is part of the GNU C Library.
3
4 The GNU C Library is free software; you can redistribute it and/or
5 modify it under the terms of the GNU Lesser General Public
6 License as published by the Free Software Foundation; either
7 version 2.1 of the License, or (at your option) any later version.
8
9 The GNU C Library 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 GNU
12 Lesser General Public License for more details.
13
14 You should have received a copy of the GNU Lesser General Public
15 License along with the GNU C Library; if not, see
16 <https://www.gnu.org/licenses/>. */
17
18#include <wchar.h>
19
20extern int fclose (FILE*);
21
22#if defined __GNUC__ && __GNUC__ >= 11
23/* Verify that calling fclose on the result of open_wmemstream doesn't
24 trigger GCC -Wmismatched-dealloc with fclose forward-declared and
25 without <stdio.h> included in the same translation unit. */
26#pragma GCC diagnostic push
27#pragma GCC diagnostic error "-Wmismatched-dealloc"
28#endif
29
30static int
31do_test (void)
32{
33 {
34 wchar_t *buf;
35 size_t size;
36 FILE *f = open_wmemstream (bufloc: &buf, sizeloc: &size);
37 fclose (f);
38 }
39
40 {
41 FILE* (*pf)(wchar_t**, size_t*) = open_wmemstream;
42 wchar_t *buf;
43 size_t size;
44 FILE *f = pf (&buf, &size);
45 fclose (f);
46 }
47
48 return 0;
49}
50
51#if defined __GNUC__ && __GNUC__ >= 11
52/* Restore -Wmismatched-dealloc setting. */
53# pragma GCC diagnostic pop
54#endif
55
56#define TEST_FUNCTION do_test ()
57#include "../test-skeleton.c"
58

source code of glibc/libio/tst-wmemstream5.c