111 lines
3.7 KiB
C
111 lines
3.7 KiB
C
/* $NetBSD: strings.h,v 1.10 2005/02/03 04:39:32 perry Exp $ */
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/*-
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* Copyright (c) 1998 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by Klaus Klein.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the NetBSD
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* Foundation, Inc. and its contributors.
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* 4. Neither the name of The NetBSD Foundation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#pragma once
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/**
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* @file strings.h
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* @brief Extra string functions.
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*/
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#include <sys/types.h>
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#include <sys/cdefs.h>
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#include <xlocale.h>
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#include <bits/strcasecmp.h>
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#if !defined(__BIONIC_STRINGS_INLINE)
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#define __BIONIC_STRINGS_INLINE static __inline
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#endif
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#undef ffs
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#undef ffsl
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#undef ffsll
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__BEGIN_DECLS
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/** Deprecated. Use memmove() instead. */
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#define bcopy(b1, b2, len) __bionic_bcopy((b1), (b2), (len))
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static __inline__ __always_inline void __bionic_bcopy(const void* _Nonnull b1, void* _Nonnull b2, size_t len) {
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__builtin_memmove(b2, b1, len);
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}
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/** Deprecated. Use memset() instead. */
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#define bzero(b, len) __bionic_bzero((b), (len))
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static __inline__ __always_inline void __bionic_bzero(void* _Nonnull b, size_t len) {
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__builtin_memset(b, 0, len);
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}
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/**
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* [ffs(3)](http://man7.org/linux/man-pages/man3/ffs.3.html) finds the
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* first set bit in `__n`.
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*
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* Returns 0 if no bit is set, or the index of the lowest set bit (counting
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* from 1) otherwise.
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*/
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__BIONIC_STRINGS_INLINE int ffs(int __n) {
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return __builtin_ffs(__n);
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}
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/**
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* [ffsl(3)](http://man7.org/linux/man-pages/man3/ffsl.3.html) finds the
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* first set bit in `__n`.
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*
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* Returns 0 if no bit is set, or the index of the lowest set bit (counting
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* from 1) otherwise.
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*/
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__BIONIC_STRINGS_INLINE int ffsl(long __n) {
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return __builtin_ffsl(__n);
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}
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/**
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* [ffsll(3)](http://man7.org/linux/man-pages/man3/ffsll.3.html) finds the
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* first set bit in `__n`.
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*
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* Returns 0 if no bit is set, or the index of the lowest set bit (counting
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* from 1) otherwise.
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*/
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__BIONIC_STRINGS_INLINE int ffsll(long long __n) {
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return __builtin_ffsll(__n);
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}
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#if defined(__BIONIC_INCLUDE_FORTIFY_HEADERS)
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#include <bits/fortify/strings.h>
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#endif
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__END_DECLS
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