1 /*- 2 * Copyright (c) 1995 Alex Tatmanjants <alex (at) 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 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
