19829d36aSTakuya SHIOZAKI /* 29829d36aSTakuya SHIOZAKI * Copyright (c) 1989, 1993 39829d36aSTakuya SHIOZAKI * The Regents of the University of California. All rights reserved. 49829d36aSTakuya SHIOZAKI * 59829d36aSTakuya SHIOZAKI * Redistribution and use in source and binary forms, with or without 69829d36aSTakuya SHIOZAKI * modification, are permitted provided that the following conditions 79829d36aSTakuya SHIOZAKI * are met: 89829d36aSTakuya SHIOZAKI * 1. Redistributions of source code must retain the above copyright 99829d36aSTakuya SHIOZAKI * notice, this list of conditions and the following disclaimer. 109829d36aSTakuya SHIOZAKI * 2. Redistributions in binary form must reproduce the above copyright 119829d36aSTakuya SHIOZAKI * notice, this list of conditions and the following disclaimer in the 129829d36aSTakuya SHIOZAKI * documentation and/or other materials provided with the distribution. 139829d36aSTakuya SHIOZAKI * 3. All advertising materials mentioning features or use of this software 149829d36aSTakuya SHIOZAKI * must display the following acknowledgement: 159829d36aSTakuya SHIOZAKI * This product includes software developed by the University of 169829d36aSTakuya SHIOZAKI * California, Berkeley and its contributors. 179829d36aSTakuya SHIOZAKI * 4. Neither the name of the University nor the names of its contributors 189829d36aSTakuya SHIOZAKI * may be used to endorse or promote products derived from this software 199829d36aSTakuya SHIOZAKI * without specific prior written permission. 209829d36aSTakuya SHIOZAKI * 219829d36aSTakuya SHIOZAKI * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 229829d36aSTakuya SHIOZAKI * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 239829d36aSTakuya SHIOZAKI * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 249829d36aSTakuya SHIOZAKI * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 259829d36aSTakuya SHIOZAKI * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 269829d36aSTakuya SHIOZAKI * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 279829d36aSTakuya SHIOZAKI * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 289829d36aSTakuya SHIOZAKI * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 299829d36aSTakuya SHIOZAKI * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 309829d36aSTakuya SHIOZAKI * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 319829d36aSTakuya SHIOZAKI * SUCH DAMAGE. 329829d36aSTakuya SHIOZAKI */ 339829d36aSTakuya SHIOZAKI 349829d36aSTakuya SHIOZAKI #include <sys/cdefs.h> 35333fc21eSDavid E. O'Brien #if 0 369829d36aSTakuya SHIOZAKI #if defined(LIBC_SCCS) && !defined(lint) 379829d36aSTakuya SHIOZAKI static char sccsid[] = "@(#)strncmp.c 8.1 (Berkeley) 6/4/93"; 389829d36aSTakuya SHIOZAKI __RCSID("$NetBSD$"); 399829d36aSTakuya SHIOZAKI #endif /* LIBC_SCCS and not lint */ 40333fc21eSDavid E. O'Brien #endif 41de5fe5d5SDavid E. O'Brien __FBSDID("$FreeBSD$"); 429829d36aSTakuya SHIOZAKI 439829d36aSTakuya SHIOZAKI #include <assert.h> 449829d36aSTakuya SHIOZAKI #include <wchar.h> 459829d36aSTakuya SHIOZAKI 469829d36aSTakuya SHIOZAKI int 479829d36aSTakuya SHIOZAKI wcsncmp(s1, s2, n) 489829d36aSTakuya SHIOZAKI const wchar_t *s1, *s2; 499829d36aSTakuya SHIOZAKI size_t n; 509829d36aSTakuya SHIOZAKI { 519829d36aSTakuya SHIOZAKI 529829d36aSTakuya SHIOZAKI if (n == 0) 539829d36aSTakuya SHIOZAKI return (0); 549829d36aSTakuya SHIOZAKI do { 559829d36aSTakuya SHIOZAKI if (*s1 != *s2++) { 569829d36aSTakuya SHIOZAKI /* XXX assumes wchar_t = int */ 579829d36aSTakuya SHIOZAKI return (*(const unsigned int *)s1 - 589829d36aSTakuya SHIOZAKI *(const unsigned int *)--s2); 599829d36aSTakuya SHIOZAKI } 609829d36aSTakuya SHIOZAKI if (*s1++ == 0) 619829d36aSTakuya SHIOZAKI break; 629829d36aSTakuya SHIOZAKI } while (--n != 0); 639829d36aSTakuya SHIOZAKI return (0); 649829d36aSTakuya SHIOZAKI } 65