| 1 | /* Copyright (C) 1996-2022 Free Software Foundation, Inc. |
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| 2 | This file is part of the GNU C Library. |
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| 3 | |
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| 4 | The GNU C Library is free software; you can redistribute it and/or |
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| 5 | modify it under the terms of the GNU Lesser General Public |
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| 6 | License as published by the Free Software Foundation; either |
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| 7 | version 2.1 of the License, or (at your option) any later version. |
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| 8 | |
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| 9 | The GNU C Library is distributed in the hope that it will be useful, |
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| 10 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 11 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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| 12 | Lesser General Public License for more details. |
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| 13 | |
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| 14 | You should have received a copy of the GNU Lesser General Public |
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| 15 | License along with the GNU C Library; if not, see |
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| 16 | <https://www.gnu.org/licenses/>. */ |
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| 17 | |
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| 18 | #include <wchar.h> |
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| 19 | |
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| 20 | #ifdef WCPNCPY |
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| 21 | # define __wcpncpy WCPNCPY |
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| 22 | #endif |
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| 23 | |
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| 24 | /* Copy no more than N wide-characters of SRC to DEST, returning the |
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| 25 | address of the last character written into DEST. */ |
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| 26 | wchar_t * |
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| 27 | __wcpncpy (wchar_t *dest, const wchar_t *src, size_t n) |
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| 28 | { |
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| 29 | size_t size = __wcsnlen (s: src, maxlen: n); |
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| 30 | __wmemcpy (s1: dest, s2: src, n: size); |
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| 31 | dest += size; |
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| 32 | if (size == n) |
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| 33 | return dest; |
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| 34 | return wmemset (dest, L'\0', (n - size)); |
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| 35 | } |
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| 36 | |
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| 37 | #ifndef WCPNCPY |
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| 38 | weak_alias (__wcpncpy, wcpncpy) |
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| 39 | #endif |
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| 40 | |
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