1/* Copyright (C) 1996-2023 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 <ctype.h>
19#include <wctype.h>
20
21#include "wchar-lookup.h"
22
23#undef __iswctype
24
25int
26__iswctype (wint_t wc, wctype_t desc)
27{
28 /* If the user passes in an invalid DESC valid (the one returned from
29 `wctype' in case of an error) simply return 0. */
30 if (desc == (wctype_t) 0)
31 return 0;
32
33 return wctype_table_lookup ((const char *) desc, wc);
34}
35libc_hidden_def (__iswctype)
36weak_alias (__iswctype, iswctype)
37