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C library: Add ffs(). Add strings.h. Move strcasecmp, strncasecmp, bzero, bcmp, and bcopy to where they belong in strings.h.h, not string.h. bzero, bcmp, and bcopy are legacy functions; the contemporary counterparts should be used instead.

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This commit is contained in:
Gregory Nutt 2017-02-16 16:10:09 -06:00
parent 6d1f3da289
commit 4f5879f998
11 changed files with 194 additions and 28 deletions
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13
include/string.h
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@ -1,7 +1,7 @@
/****************************************************************************
* include/string.h
*
* Copyright (C) 2007-2012, 2014, 2016 Gregory Nutt. All rights reserved.
* Copyright (C) 2007-2012, 2014, 2016-2017 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <gnutt@nuttx.org>
*
* Redistribution and use in source and binary forms, with or without
@ -47,15 +47,6 @@
/****************************************************************************
* Pre-processor Definitions
****************************************************************************/
/* Compatibility definitions */
#ifndef CONFIG_LIBC_ARCH_BZERO
# define bzero(s,n) (void)memset(s,0,n)
#endif
#define bcopy(b1,b2,len) (void)memmove(b2,b1,len)
#define rindex(s,c) strrchr(s,c)
/****************************************************************************
* Public Function Prototypes
@ -79,8 +70,6 @@ FAR char *strcat(FAR char *, FAR const char *);
FAR char *strncat(FAR char *, FAR const char *, size_t);
int strcmp(FAR const char *, FAR const char *);
int strncmp(FAR const char *, FAR const char *, size_t);
int strcasecmp(FAR const char *, FAR const char *);
int strncasecmp(FAR const char *, FAR const char *, size_t);
int strcoll(FAR const char *, FAR const char *s2);
FAR char *strcpy(char *dest, FAR const char *src);
FAR char *stpcpy(char *dest, FAR const char *src);