projects / apple / libc.git / blame
| Commit | Line | Data |
|---|---|---|
| e9ce8d39 | 1 | /* |
| 5b2abdfb | 2 | * Copyright (c) 1989, 1993 |
| e9ce8d39 A |
3 | * The Regents of the University of California. All rights reserved. |
| 4 | * | |
| 5 | * Redistribution and use in source and binary forms, with or without | |
| 6 | * modification, are permitted provided that the following conditions | |
| 7 | * are met: | |
| 8 | * 1. Redistributions of source code must retain the above copyright | |
| 9 | * notice, this list of conditions and the following disclaimer. | |
| 10 | * 2. Redistributions in binary form must reproduce the above copyright | |
| 11 | * notice, this list of conditions and the following disclaimer in the | |
| 12 | * documentation and/or other materials provided with the distribution. | |
| e9ce8d39 A |
13 | * 4. Neither the name of the University nor the names of its contributors |
| 14 | * may be used to endorse or promote products derived from this software | |
| 15 | * without specific prior written permission. | |
| 16 | * | |
| 17 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND | |
| 18 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
| 19 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |
| 20 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE | |
| 21 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | |
| 22 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS | |
| 23 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
| 24 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | |
| 25 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY | |
| 26 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | |
| 27 | * SUCH DAMAGE. | |
| 28 | */ | |
| 29 | ||
| 9385eb3d | 30 | #include <sys/cdefs.h> |
| 5b2abdfb | 31 | #if 0 |
| 9385eb3d A |
32 | #if defined(LIBC_SCCS) && !defined(lint) |
| 33 | static char sccsid[] = "@(#)strncmp.c 8.1 (Berkeley) 6/4/93"; | |
| 34 | __RCSID("$NetBSD: wcsncmp.c,v 1.3 2001/01/05 12:13:13 itojun Exp $"); | |
| 5b2abdfb | 35 | #endif /* LIBC_SCCS and not lint */ |
| 9385eb3d | 36 | #endif |
| 1f2f436a | 37 | __FBSDID("$FreeBSD: src/lib/libc/string/wcsncmp.c,v 1.9 2009/02/03 17:58:20 danger Exp $"); |
| e9ce8d39 | 38 | |
| 9385eb3d | 39 | #include <wchar.h> |
| e9ce8d39 | 40 | |
| 5b2abdfb | 41 | int |
| 1f2f436a | 42 | wcsncmp(const wchar_t *s1, const wchar_t *s2, size_t n) |
| e9ce8d39 | 43 | { |
| 5b2abdfb | 44 | |
| 9385eb3d A |
45 | if (n == 0) |
| 46 | return (0); | |
| 47 | do { | |
| 48 | if (*s1 != *s2++) { | |
| 49 | /* XXX assumes wchar_t = int */ | |
| 50 | return (*(const unsigned int *)s1 - | |
| 51 | *(const unsigned int *)--s2); | |
| 52 | } | |
| 53 | if (*s1++ == 0) | |
| 54 | break; | |
| 55 | } while (--n != 0); | |
| 56 | return (0); | |
| e9ce8d39 | 57 | } |