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>, 1995.
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 <wchar.h>
20
21#ifdef WCPNCPY
22# define __wcpncpy WCPNCPY
23#endif
24
25/* Copy no more than N wide-characters of SRC to DEST, returning the
26 address of the last character written into DEST. */
27wchar_t *
28__wcpncpy (wchar_t *dest, const wchar_t *src, size_t n)
29{
30 size_t size = __wcsnlen (src, n);
31 __wmemcpy (dest, src, size);
32 dest += size;
33 if (size == n)
34 return dest;
35 return wmemset (dest, L'\0', (n - size));
36}
37
38#ifndef WCPNCPY
39weak_alias (__wcpncpy, wcpncpy)
40#endif
41