1/* Copyright (C) 1995-2023 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 WCSNCPY
21# define __wcsncpy WCSNCPY
22#endif
23
24/* Copy no more than N wide-characters of SRC to DEST. */
25wchar_t *
26__wcsncpy (wchar_t *dest, const wchar_t *src, size_t n)
27{
28 size_t size = __wcsnlen (src, n);
29 if (size != n)
30 __wmemset (dest + size, L'\0', n - size);
31 return __wmemcpy (dest, src, size);
32}
33#ifndef WCSNCPY
34weak_alias (__wcsncpy, wcsncpy)
35#endif
36