1/* Copyright (C) 1998-2023 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 <wchar.h>
19
20#ifdef WCSNLEN
21# define __wcsnlen WCSNLEN
22#endif
23
24/* Return length of string S at most maxlen. */
25size_t
26__wcsnlen (const wchar_t *s, size_t maxlen)
27{
28 const wchar_t *ret = __wmemchr (s, L'\0', maxlen);
29 if (ret)
30 maxlen = ret - s;
31 return maxlen;
32}
33#ifndef WCSNLEN
34weak_alias (__wcsnlen, wcsnlen)
35#endif
36