ba3f12c93f
specified here: https://www.unix.com/man-page/netbsd/3/popcountll/ Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
107 lines
3.6 KiB
C
107 lines
3.6 KiB
C
/****************************************************************************
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* include/strings.h
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*
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* Copyright (C) 2017 Gregory Nutt. All rights reserved.
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* Author: Gregory Nutt <gnutt@nuttx.org>
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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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*
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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
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* the documentation and/or other materials provided with the
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* distribution.
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* 3. Neither the name NuttX nor the names of its contributors may be
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* used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* 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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****************************************************************************/
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#ifndef __INCLUDE_STRINGS_H
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#define __INCLUDE_STRINGS_H
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <nuttx/config.h>
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#include <string.h>
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/****************************************************************************
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* Pre-processor Definitions
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****************************************************************************/
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/* Compatibility definitions
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*
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* Marked LEGACY in Open Group Base Specifications Issue 6/
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* IEEE Std 1003.1-2004
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* Removed from Open Group Base Specifications Issue 7/
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* IEEE Std 1003.1-2008
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*/
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#define bcmp(b1,b2,len) memcmp(b1,b2,(size_t)len)
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#define bcopy(b1,b2,len) (void)memmove(b2,b1,len)
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#define bzero(s,n) (void)memset(s,0,n)
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/****************************************************************************
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* Inline Functions
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****************************************************************************/
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#undef EXTERN
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#if defined(__cplusplus)
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#define EXTERN extern "C"
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extern "C"
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{
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#else
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#define EXTERN extern
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#endif
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/****************************************************************************
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* Public Function Prototypes
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****************************************************************************/
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int ffs(int j);
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int ffsl(long j);
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#ifdef CONFIG_HAVE_LONG_LONG
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int ffsll(long long j);
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#endif
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int fls(int j);
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int flsl(long j);
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#ifdef CONFIG_HAVE_LONG_LONG
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int flsll(long long j);
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#endif
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unsigned int popcount(unsigned int j);
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unsigned int popcountl(unsigned long j);
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unsigned int popcountll(unsigned long long j);
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FAR char *index(FAR const char *s, int c);
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FAR char *rindex(FAR const char *s, int c);
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int strcasecmp(FAR const char *, FAR const char *);
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int strncasecmp(FAR const char *, FAR const char *, size_t);
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#undef EXTERN
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#if defined(__cplusplus)
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}
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#endif
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#endif /* __INCLUDE_STRINGS_H */
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