can't get_block(NO_DEV) any more
[minix.git] / common / lib / libc / string / bcmp.c
blob724658d9d1c0a4d02b8673cdd1c917e91d7edb50
1 /* $NetBSD: bcmp.c,v 1.6 2009/04/25 12:20:48 skrll Exp $ */
3 /*
4 * Copyright (c) 1987, 1993
5 * The Regents of the University of California. All rights reserved.
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 * 3. Neither the name of the University nor the names of its contributors
16 * may be used to endorse or promote products derived from this software
17 * without specific prior written permission.
19 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``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.
32 #include <sys/cdefs.h>
33 #if defined(LIBC_SCCS) && !defined(lint)
34 #if 0
35 static char sccsid[] = "@(#)bcmp.c 8.1 (Berkeley) 6/4/93";
36 #else
37 __RCSID("$NetBSD: bcmp.c,v 1.6 2009/04/25 12:20:48 skrll Exp $");
38 #endif
39 #endif /* LIBC_SCCS and not lint */
42 #if defined(_KERNEL) || defined(_STANDALONE)
43 #include <lib/libkern/libkern.h>
44 #if defined(_STANDALONE)
45 #include <lib/libsa/stand.h>
46 #endif
47 #else
48 #include <assert.h>
49 #include <string.h>
50 #endif
53 * bcmp -- vax cmpc3 instruction
55 int
56 bcmp(const void *b1, const void *b2, size_t length)
58 const char *p1 = b1, *p2 = b2;
60 _DIAGASSERT(b1 != 0);
61 _DIAGASSERT(b2 != 0);
63 if (length == 0)
64 return(0);
66 if (*p1++ != *p2++)
67 break;
68 while (--length);
69 return(length);