uclibc-ng/include/strings.h

/* Copyright (C) 1991,92,96,97,99,2000,2001 Free Software Foundation, Inc.
   This file is part of the GNU C Library.

   The GNU C Library is free software; you can redistribute it and/or
   modify it under the terms of the GNU Lesser General Public
   License as published by the Free Software Foundation; either
   version 2.1 of the License, or (at your option) any later version.

   The GNU C Library is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   Lesser General Public License for more details.

   You should have received a copy of the GNU Lesser General Public
   License along with the GNU C Library; if not, write to the Free
   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
   02111-1307 USA.  */

#ifndef	_STRINGS_H
#define	_STRINGS_H	1

/* We don't need and should not read this file if <string.h> was already
   read. The one exception being that if __USE_BSD isn't defined, then
   these aren't defined in string.h, so we need to define them here.  */

/* keep this file in sync w/ string.h, the glibc version is out of date */

#if !defined _STRING_H || !defined __USE_BSD

# include <features.h>
# define __need_size_t
# include <stddef.h>

__BEGIN_DECLS

# ifdef __UCLIBC_SUSV3_LEGACY__
/* Copy N bytes of SRC to DEST (like memmove, but args reversed).  */
extern void bcopy (__const void *__src, void *__dest, size_t __n)
     __THROW __nonnull ((1, 2));

/* Set N bytes of S to 0.  */
extern void bzero (void *__s, size_t __n) __THROW __nonnull ((1));

/* Compare N bytes of S1 and S2 (same as memcmp).  */
extern int bcmp (__const void *__s1, __const void *__s2, size_t __n)
     __THROW __attribute_pure__ __nonnull ((1, 2));

/* Find the first occurrence of C in S (same as strchr).  */
extern char *index (__const char *__s, int __c)
     __THROW __attribute_pure__ __nonnull ((1));

/* Find the last occurrence of C in S (same as strrchr).  */
extern char *rindex (__const char *__s, int __c)
     __THROW __attribute_pure__ __nonnull ((1));
# else
#  ifdef __UCLIBC_SUSV3_LEGACY_MACROS__
/* bcopy/bzero/bcmp/index/rindex are marked LEGACY in SuSv3.
 * They are replaced as proposed by SuSv3. Don't sync this part
 * with glibc and keep it in sync with string.h.  */

#  define bcopy(src,dest,n) (memmove((dest), (src), (n)), (void) 0)
#  define bzero(s,n) (memset((s), '\0', (n)), (void) 0)
#  define bcmp(s1,s2,n) memcmp((s1), (s2), (size_t)(n))
#  define index(s,c) strchr((s), (c))
#  define rindex(s,c) strrchr((s), (c))
#  endif
# endif

/* Return the position of the first bit set in I, or 0 if none are set.
   The least-significant bit is position 1, the most-significant 32.  */
extern int ffs (int __i) __THROW __attribute__ ((__const__));

/* The following two functions are non-standard but necessary for non-32 bit
   platforms.  */
#if 0 /*def	__USE_GNU*/
extern int ffsl (long int __l) __THROW __attribute__ ((__const__));
#  ifdef __GNUC__
__extension__ extern int ffsll (long long int __ll)
     __THROW __attribute__ ((__const__));
#  endif
# endif

/* Compare S1 and S2, ignoring case.  */
extern int strcasecmp (__const char *__s1, __const char *__s2)
     __THROW __attribute_pure__ __nonnull ((1, 2));

/* Compare no more than N chars of S1 and S2, ignoring case.  */
extern int strncasecmp (__const char *__s1, __const char *__s2, size_t __n)
     __THROW __attribute_pure__ __nonnull ((1, 2));

__END_DECLS

#endif	/* string.h  */

#endif	/* strings.h  */