string.h revision 1.2.4.2 1 1.2.4.2 rmind /* $NetBSD: string.h,v 1.2.4.2 2014/05/18 17:46:01 rmind Exp $ */
2 1.2.4.2 rmind
3 1.2.4.2 rmind /*-
4 1.2.4.2 rmind * Copyright (c) 2013 The NetBSD Foundation, Inc.
5 1.2.4.2 rmind * All rights reserved.
6 1.2.4.2 rmind *
7 1.2.4.2 rmind * This code is derived from software contributed to The NetBSD Foundation
8 1.2.4.2 rmind * by Taylor R. Campbell.
9 1.2.4.2 rmind *
10 1.2.4.2 rmind * Redistribution and use in source and binary forms, with or without
11 1.2.4.2 rmind * modification, are permitted provided that the following conditions
12 1.2.4.2 rmind * are met:
13 1.2.4.2 rmind * 1. Redistributions of source code must retain the above copyright
14 1.2.4.2 rmind * notice, this list of conditions and the following disclaimer.
15 1.2.4.2 rmind * 2. Redistributions in binary form must reproduce the above copyright
16 1.2.4.2 rmind * notice, this list of conditions and the following disclaimer in the
17 1.2.4.2 rmind * documentation and/or other materials provided with the distribution.
18 1.2.4.2 rmind *
19 1.2.4.2 rmind * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
20 1.2.4.2 rmind * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
21 1.2.4.2 rmind * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22 1.2.4.2 rmind * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
23 1.2.4.2 rmind * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
24 1.2.4.2 rmind * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
25 1.2.4.2 rmind * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
26 1.2.4.2 rmind * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
27 1.2.4.2 rmind * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
28 1.2.4.2 rmind * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29 1.2.4.2 rmind * POSSIBILITY OF SUCH DAMAGE.
30 1.2.4.2 rmind */
31 1.2.4.2 rmind
32 1.2.4.2 rmind #ifndef _LINUX_STRING_H_
33 1.2.4.2 rmind #define _LINUX_STRING_H_
34 1.2.4.2 rmind
35 1.2.4.2 rmind #include <sys/types.h>
36 1.2.4.2 rmind #include <sys/cdefs.h>
37 1.2.4.2 rmind #include <sys/null.h>
38 1.2.4.2 rmind
39 1.2.4.2 rmind static inline void *
40 1.2.4.2 rmind memchr_inv(const void *buffer, int c, size_t len)
41 1.2.4.2 rmind {
42 1.2.4.2 rmind const uint8_t byte = c; /* XXX lose */
43 1.2.4.2 rmind const char *p;
44 1.2.4.2 rmind
45 1.2.4.2 rmind for (p = buffer; len-- > 0; p++)
46 1.2.4.2 rmind if (*p != byte)
47 1.2.4.2 rmind return __UNCONST(p);
48 1.2.4.2 rmind
49 1.2.4.2 rmind return NULL;
50 1.2.4.2 rmind }
51 1.2.4.2 rmind
52 1.2.4.2 rmind #endif /* _LINUX_STRING_H_ */
53