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04277e02 | 1 | /* Copyright (C) 1996-2019 Free Software Foundation, Inc. |
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2 | This file is part of the GNU C Library. |
3 | Contributed by Ulrich Drepper <drepper@gnu.ai.mit.edu>, 1996. | |
4 | ||
5 | The GNU C Library is free software; you can redistribute it and/or | |
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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. | |
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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 | |
41bdb6e2 | 13 | Lesser General Public License for more details. |
33a934a3 | 14 | |
41bdb6e2 | 15 | You should have received a copy of the GNU Lesser General Public |
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16 | License along with the GNU C Library; if not, see |
17 | <http://www.gnu.org/licenses/>. */ | |
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18 | |
19 | #include <wchar.h> | |
20 | ||
21 | #define __need_ptrdiff_t | |
22 | #include <stddef.h> | |
23 | ||
8ade3db7 SL |
24 | #ifdef WCPCPY |
25 | # define __wcpcpy WCPCPY | |
26 | #endif | |
75cd5204 RM |
27 | /* Copy SRC to DEST, returning the address of the terminating L'\0' in |
28 | DEST. */ | |
29 | wchar_t * | |
9d46370c | 30 | __wcpcpy (wchar_t *dest, const wchar_t *src) |
75cd5204 RM |
31 | { |
32 | wchar_t *wcp = (wchar_t *) dest - 1; | |
33 | wint_t c; | |
34 | const ptrdiff_t off = src - dest + 1; | |
35 | ||
36 | do | |
37 | { | |
38 | c = wcp[off]; | |
39 | *++wcp = c; | |
40 | } | |
41 | while (c != L'\0'); | |
42 | ||
43 | return wcp; | |
44 | } | |
45 | ||
8ade3db7 | 46 | #ifndef WCPCPY |
75cd5204 | 47 | weak_alias (__wcpcpy, wcpcpy) |
8ade3db7 | 48 | #endif |