1 /* $NetBSD: strings.h,v 1.10 2005/02/03 04:39:32 perry Exp $ */
2
3 /*-
4 * Copyright (c) 1998 The NetBSD Foundation, Inc.
5 * All rights reserved.
6 *
7 * This code is derived from software contributed to The NetBSD Foundation
8 * by Klaus Klein.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 * notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in the
17 * documentation and/or other materials provided with the distribution.
18 * 3. All advertising materials mentioning features or use of this software
19 * must display the following acknowledgement:
20 * This product includes software developed by the NetBSD
21 * Foundation, Inc. and its contributors.
22 * 4. Neither the name of The NetBSD Foundation nor the names of its
23 * contributors may be used to endorse or promote products derived
24 * from this software without specific prior written permission.
25 *
26 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
27 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
28 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
29 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
30 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
31 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
32 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
33 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
34 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
35 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
36 * POSSIBILITY OF SUCH DAMAGE.
37 */
38
39 #pragma once
40
41 /**
42 * @file strings.h
43 * @brief Extra string functions.
44 */
45
46 #include <sys/types.h>
47 #include <sys/cdefs.h>
48 #include <xlocale.h>
49
50 #include <bits/strcasecmp.h>
51
52 #if !defined(__BIONIC_STRINGS_INLINE)
53 #define __BIONIC_STRINGS_INLINE static __inline
54 #endif
55
56 #undef ffs
57 #undef ffsl
58 #undef ffsll
59
60 __BEGIN_DECLS
61
62 /** Deprecated. Use memmove() instead. */
63 #define bcopy(b1, b2, len) __bionic_bcopy((b1), (b2), (len))
__bionic_bcopy(const void * b1,void * b2,size_t len)64 static __inline__ __always_inline void __bionic_bcopy(const void* b1, void* b2, size_t len) {
65 __builtin_memmove(b2, b1, len);
66 }
67
68 /** Deprecated. Use memset() instead. */
69 #define bzero(b, len) __bionic_bzero((b), (len))
__bionic_bzero(void * b,size_t len)70 static __inline__ __always_inline void __bionic_bzero(void* b, size_t len) {
71 __builtin_memset(b, 0, len);
72 }
73
74 /**
75 * [ffs(3)](http://man7.org/linux/man-pages/man3/ffs.3.html) finds the
76 * first set bit in `__n`.
77 *
78 * Returns 0 if no bit is set, or the index of the lowest set bit (counting
79 * from 1) otherwise.
80 */
ffs(int __n)81 __BIONIC_STRINGS_INLINE int ffs(int __n) {
82 return __builtin_ffs(__n);
83 }
84
85 /**
86 * [ffsl(3)](http://man7.org/linux/man-pages/man3/ffsl.3.html) finds the
87 * first set bit in `__n`.
88 *
89 * Returns 0 if no bit is set, or the index of the lowest set bit (counting
90 * from 1) otherwise.
91 */
ffsl(long __n)92 __BIONIC_STRINGS_INLINE int ffsl(long __n) {
93 return __builtin_ffsl(__n);
94 }
95
96 /**
97 * [ffsll(3)](http://man7.org/linux/man-pages/man3/ffsll.3.html) finds the
98 * first set bit in `__n`.
99 *
100 * Returns 0 if no bit is set, or the index of the lowest set bit (counting
101 * from 1) otherwise.
102 */
ffsll(long long __n)103 __BIONIC_STRINGS_INLINE int ffsll(long long __n) {
104 return __builtin_ffsll(__n);
105 }
106
107 #if defined(__BIONIC_INCLUDE_FORTIFY_HEADERS)
108 #include <bits/fortify/strings.h>
109 #endif
110
111 __END_DECLS
112