1 /* 2 * Copyright (C) 1996 by Andrey A. Chernov, Moscow, Russia. 3 * All rights reserved. 4 * 5 * Copyright (c) 2011 The FreeBSD Foundation 6 * All rights reserved. 7 * Portions of this software were developed by David Chisnall 8 * under sponsorship from the FreeBSD Foundation. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND 20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 22 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 29 * SUCH DAMAGE. 30 * 31 * $FreeBSD: head/lib/libc/locale/collcmp.c 227753 2011-11-20 14:45:42Z theraven $ 32 */ 33 34 35 #include <string.h> 36 #include <wchar.h> 37 #include "collate.h" 38 39 /* 40 * Compare two characters using collate 41 */ 42 43 int __collate_range_cmp(char c1, char c2) 44 { 45 char s1[2], s2[2]; 46 47 s1[0] = c1; 48 s1[1] = '\0'; 49 s2[0] = c2; 50 s2[1] = '\0'; 51 return (strcoll(s1, s2)); 52 } 53 54 int __wcollate_range_cmp(wchar_t c1, wchar_t c2) 55 { 56 wchar_t s1[2], s2[2]; 57 58 s1[0] = c1; 59 s1[1] = L'\0'; 60 s2[0] = c2; 61 s2[1] = L'\0'; 62 return (wcscoll(s1, s2)); 63 } 64