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wcscmp.c revision 1.9 
      1  1.9       abs /*	$NetBSD: wcscmp.c,v 1.9 2012/06/25 22:32:46 abs Exp $	*/
      2  1.1    itojun 
      3  1.1    itojun /*-
      4  1.3    itojun  * Copyright (c) 1990, 1993
      5  1.3    itojun  *	The Regents of the University of California.  All rights reserved.
      6  1.3    itojun  *
      7  1.3    itojun  * This code is derived from software contributed to Berkeley by
      8  1.3    itojun  * Chris Torek.
      9  1.1    itojun  *
     10  1.1    itojun  * Redistribution and use in source and binary forms, with or without
     11  1.1    itojun  * modification, are permitted provided that the following conditions
     12  1.1    itojun  * are met:
     13  1.1    itojun  * 1. Redistributions of source code must retain the above copyright
     14  1.1    itojun  *    notice, this list of conditions and the following disclaimer.
     15  1.1    itojun  * 2. Redistributions in binary form must reproduce the above copyright
     16  1.1    itojun  *    notice, this list of conditions and the following disclaimer in the
     17  1.1    itojun  *    documentation and/or other materials provided with the distribution.
     18  1.5       agc  * 3. Neither the name of the University nor the names of its contributors
     19  1.3    itojun  *    may be used to endorse or promote products derived from this software
     20  1.3    itojun  *    without specific prior written permission.
     21  1.1    itojun  *
     22  1.3    itojun  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     23  1.1    itojun  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     24  1.1    itojun  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     25  1.3    itojun  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     26  1.1    itojun  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     27  1.1    itojun  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     28  1.1    itojun  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     29  1.1    itojun  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     30  1.1    itojun  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     31  1.1    itojun  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     32  1.1    itojun  * SUCH DAMAGE.
     33  1.1    itojun  */
     34  1.1    itojun 
     35  1.1    itojun #include <sys/cdefs.h>
     36  1.1    itojun #if defined(LIBC_SCCS) && !defined(lint)
     37  1.3    itojun #if 0
     38  1.3    itojun static char sccsid[] = "@(#)strcmp.c	8.1 (Berkeley) 6/4/93";
     39  1.3    itojun #else
     40  1.9       abs __RCSID("$NetBSD: wcscmp.c,v 1.9 2012/06/25 22:32:46 abs Exp $");
     41  1.3    itojun #endif
     42  1.1    itojun #endif /* LIBC_SCCS and not lint */
     43  1.1    itojun 
     44  1.2     lukem #include <assert.h>
     45  1.1    itojun #include <wchar.h>
     46  1.7   tnozaki #include "runetype_local.h"
     47  1.1    itojun 
     48  1.3    itojun /*
     49  1.3    itojun  * Compare strings.
     50  1.3    itojun  */
     51  1.1    itojun int
     52  1.9       abs wcscmp(const wchar_t *s1, const wchar_t *s2)
     53  1.1    itojun {
     54  1.3    itojun 
     55  1.2     lukem 	_DIAGASSERT(s1 != NULL);
     56  1.2     lukem 	_DIAGASSERT(s2 != NULL);
     57  1.2     lukem 
     58  1.3    itojun 	while (*s1 == *s2++)
     59  1.3    itojun 		if (*s1++ == 0)
     60  1.3    itojun 			return (0);
     61  1.3    itojun 	/* XXX assumes wchar_t = int */
     62  1.4  tshiozak 	return (*(const __nbrune_t *)s1 - *(const __nbrune_t *)--s2);
     63  1.1    itojun }
     64