1 /*-
2 * Copyright (c) 1995 Alex Tatmanjants <alex@elvisti.kiev.ua>
3 * at Electronni Visti IA, Kiev, Ukraine.
4 * All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND
16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE
19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
25 * SUCH DAMAGE.
26 */
27
28 #include <wchar.h>
29
30 /*
31 * Placeholder wcsxfrm() implementation. See wcscoll.c for a description of
32 * the logic used.
33 */
34 size_t
wcsxfrm(wchar_t * __restrict dest,const wchar_t * __restrict src,size_t len)35 wcsxfrm(wchar_t * __restrict dest, const wchar_t * __restrict src, size_t len)
36 {
37 int prim, sec, l;
38 size_t slen;
39 char *mbsrc, *s, *ss;
40
41 if (*src == L'\0') {
42 if (len != 0)
43 *dest = L'\0';
44 return (0);
45 }
46
47 slen = wcslen(src);
48 if (len > 0) {
49 if (slen < len)
50 wcscpy(dest, src);
51 else {
52 wcsncpy(dest, src, len - 1);
53 dest[len - 1] = L'\0';
54 }
55 }
56 return (slen);
57 }
58