| 1 | /* Copyright (C) 1996-2024 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 WCPNCPY |
|---|
| 21 | # define __wcpncpy WCPNCPY |
|---|
| 22 | #endif |
|---|
| 23 | |
|---|
| 24 | /* Copy no more than N wide-characters of SRC to DEST, returning the |
|---|
| 25 | address of the last character written into DEST. */ |
|---|
| 26 | wchar_t * |
|---|
| 27 | __wcpncpy (wchar_t *dest, const wchar_t *src, size_t n) |
|---|
| 28 | { |
|---|
| 29 | size_t size = __wcsnlen (s: src, maxlen: n); |
|---|
| 30 | __wmemcpy (s1: dest, s2: src, n: size); |
|---|
| 31 | dest += size; |
|---|
| 32 | if (size == n) |
|---|
| 33 | return dest; |
|---|
| 34 | return wmemset (dest, L'\0', (n - size)); |
|---|
| 35 | } |
|---|
| 36 | |
|---|
| 37 | #ifndef WCPNCPY |
|---|
| 38 | weak_alias (__wcpncpy, wcpncpy) |
|---|
| 39 | #endif |
|---|
| 40 | |
|---|
