1 /* Copyright (C) 1991,92,96,97,99,2000,2001 Free Software Foundation, Inc.
2 This file is part of the GNU C Library.
4 The GNU C Library is free software; you can redistribute it and/or
5 modify it under the terms of the GNU Lesser General Public
6 License as published by the Free Software Foundation; either
7 version 2.1 of the License, or (at your option) any later version.
9 The GNU C Library is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 Lesser General Public License for more details.
14 You should have received a copy of the GNU Lesser General Public
15 License along with the GNU C Library; if not, write to the Free
16 Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
22 /* We don't need and should not read this file if <string.h> was already
23 read. The one exception being that if __USE_BSD isn't defined, then
24 these aren't defined in string.h, so we need to define them here. */
26 /* keep this file in sync w/ string.h, the glibc version is out of date */
28 #if !defined _STRING_H || !defined __USE_BSD
30 # include <features.h>
31 # define __need_size_t
36 # ifdef __UCLIBC_SUSV3_LEGACY__
37 /* Copy N bytes of SRC to DEST (like memmove, but args reversed). */
38 extern void bcopy (__const
void *__src
, void *__dest
, size_t __n
)
39 __THROW
__nonnull ((1, 2));
41 /* Set N bytes of S to 0. */
42 extern void bzero (void *__s
, size_t __n
) __THROW
__nonnull ((1));
44 /* Compare N bytes of S1 and S2 (same as memcmp). */
45 extern int bcmp (__const
void *__s1
, __const
void *__s2
, size_t __n
)
46 __THROW __attribute_pure__
__nonnull ((1, 2));
48 /* Find the first occurrence of C in S (same as strchr). */
49 extern char *index (__const
char *__s
, int __c
)
50 __THROW __attribute_pure__
__nonnull ((1));
52 /* Find the last occurrence of C in S (same as strrchr). */
53 extern char *rindex (__const
char *__s
, int __c
)
54 __THROW __attribute_pure__
__nonnull ((1));
56 # ifdef __UCLIBC_SUSV3_LEGACY_MACROS__
57 /* bcopy/bzero/bcmp/index/rindex are marked LEGACY in SuSv3.
58 * They are replaced as proposed by SuSv3. Don't sync this part
59 * with glibc and keep it in sync with string.h. */
61 # define bcopy(src,dest,n) (memmove((dest), (src), (n)), (void) 0)
62 # define bzero(s,n) (memset((s), '\0', (n)), (void) 0)
63 # define bcmp(s1,s2,n) memcmp((s1), (s2), (size_t)(n))
64 # define index(s,c) strchr((s), (c))
65 # define rindex(s,c) strrchr((s), (c))
69 /* Return the position of the first bit set in I, or 0 if none are set.
70 The least-significant bit is position 1, the most-significant 32. */
71 extern int ffs (int __i
) __THROW
__attribute__ ((__const__
));
73 /* The following two functions are non-standard but necessary for non-32 bit
75 #if 0 /*def __USE_GNU*/
76 extern int ffsl (long int __l
) __THROW
__attribute__ ((__const__
));
78 __extension__
extern int ffsll (long long int __ll
)
79 __THROW
__attribute__ ((__const__
));
83 /* Compare S1 and S2, ignoring case. */
84 extern int strcasecmp (__const
char *__s1
, __const
char *__s2
)
85 __THROW __attribute_pure__
__nonnull ((1, 2));
87 /* Compare no more than N chars of S1 and S2, ignoring case. */
88 extern int strncasecmp (__const
char *__s1
, __const
char *__s2
, size_t __n
)
89 __THROW __attribute_pure__
__nonnull ((1, 2));
95 #error "<strings.h> should not be included from libc."
101 #endif /* strings.h */