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1 | /* Copyright (C) 1995-2019 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 | <http://www.gnu.org/licenses/>. */ | |
18 | ||
19 | #include <wchar.h> | |
20 | ||
21 | #ifdef WCSNCPY | |
22 | # define __wcsncpy WCSNCPY | |
23 | #endif | |
24 | ||
25 | /* Copy no more than N wide-characters of SRC to DEST. */ | |
26 | wchar_t * | |
27 | __wcsncpy (wchar_t *dest, const wchar_t *src, size_t n) | |
28 | { | |
29 | size_t size = __wcsnlen (src, n); | |
30 | if (size != n) | |
31 | __wmemset (dest + size, L'\0', n - size); | |
32 | return __wmemcpy (dest, src, size); | |
33 | } | |
34 | #ifndef WCSNCPY | |
35 | weak_alias (__wcsncpy, wcsncpy) | |
36 | #endif |