1/* Copyright (C) 1991,92,96,97,99,2000,2001 Free Software Foundation, Inc. 2 This file is part of the GNU C Library. 3 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. 8 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. 13 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 17 02111-1307 USA. */ 18 19#ifndef _STRINGS_H 20#define _STRINGS_H 1 21 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. */ 25 26/* keep this file in sync w/ string.h, the glibc version is out of date */ 27 28#if !defined _STRING_H || !defined __USE_BSD 29 30# include <features.h> 31# define __need_size_t 32# include <stddef.h> 33 34__BEGIN_DECLS 35 36# ifdef __UCLIBC_SUSV3_LEGACY__ 37/* Copy N bytes of SRC to DEST (like memmove, but args reversed). */ 38extern void bcopy (__const void *__src, void *__dest, size_t __n) 39 __THROW __nonnull ((1, 2)); 40 41/* Set N bytes of S to 0. */ 42extern void bzero (void *__s, size_t __n) __THROW __nonnull ((1)); 43 44/* Compare N bytes of S1 and S2 (same as memcmp). */ 45extern int bcmp (__const void *__s1, __const void *__s2, size_t __n) 46 __THROW __attribute_pure__ __nonnull ((1, 2)); 47 48/* Find the first occurrence of C in S (same as strchr). */ 49extern char *index (__const char *__s, int __c) 50 __THROW __attribute_pure__ __nonnull ((1)); 51 52/* Find the last occurrence of C in S (same as strrchr). */ 53extern char *rindex (__const char *__s, int __c) 54 __THROW __attribute_pure__ __nonnull ((1)); 55# else 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. */ 60 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)) 66# endif 67# endif 68 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. */ 71extern int ffs (int __i) __THROW __attribute__ ((__const__)); 72 73/* The following two functions are non-standard but necessary for non-32 bit 74 platforms. */ 75#if 0 /*def __USE_GNU*/ 76extern int ffsl (long int __l) __THROW __attribute__ ((__const__)); 77# ifdef __GNUC__ 78__extension__ extern int ffsll (long long int __ll) 79 __THROW __attribute__ ((__const__)); 80# endif 81# endif 82 83/* Compare S1 and S2, ignoring case. */ 84extern int strcasecmp (__const char *__s1, __const char *__s2) 85 __THROW __attribute_pure__ __nonnull ((1, 2)); 86 87/* Compare no more than N chars of S1 and S2, ignoring case. */ 88extern int strncasecmp (__const char *__s1, __const char *__s2, size_t __n) 89 __THROW __attribute_pure__ __nonnull ((1, 2)); 90 91__END_DECLS 92 93 94 95 96#endif /* string.h */ 97 98#endif /* strings.h */ 99