1/* Copyright (C) 1996-2021 Free Software Foundation, Inc.
2 This file is part of the GNU C Library.
3 Contributed by Ulrich Drepper, <drepper@gnu.ai.mit.edu>.
4
5 The GNU C Library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Lesser General Public
7 License as published by the Free Software Foundation; either
8 version 2.1 of the License, or (at your option) any later version.
9
10 The GNU C Library is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Lesser General Public License for more details.
14
15 You should have received a copy of the GNU Lesser General Public
16 License along with the GNU C Library; if not, see
17 <https://www.gnu.org/licenses/>. */
18
19#include <ctype.h>
20#include <wctype.h>
21
22#include "wchar-lookup.h"
23
24#undef __iswctype
25
26int
27__iswctype (wint_t wc, wctype_t desc)
28{
29 /* If the user passes in an invalid DESC valid (the one returned from
30 `wctype' in case of an error) simply return 0. */
31 if (desc == (wctype_t) 0)
32 return 0;
33
34 return wctype_table_lookup ((const char *) desc, wc);
35}
36libc_hidden_def (__iswctype)
37weak_alias (__iswctype, iswctype)
38