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- /* Copyright (C) 1991,92,96,97,99,2000,2001,2009 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. */
- #if !defined _STRING_H || !defined __USE_BSD
-
- # include <features.h>
- # define __need_size_t
- # include <stddef.h>
-
- /* Tell the caller that we provide correct C++ prototypes. */
- # if defined __cplusplus && __GNUC_PREREQ (4, 4)
- # define __CORRECT_ISO_CPP_STRINGS_H_PROTO
- # endif
-
- __BEGIN_DECLS
-
- /* 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__;
-
- /* Copy N bytes of SRC to DEST (like memmove, but args reversed). */
- extern void bcopy (__const void *__src, void *__dest, size_t __n) __THROW;
-
- /* Set N bytes of S to 0. */
- extern void bzero (void *__s, size_t __n) __THROW;
-
- /* 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));
-
- /* Find the first occurrence of C in S (same as strchr). */
- # ifdef __CORRECT_ISO_CPP_STRINGS_H_PROTO
- extern "C++"
- {
- extern char *index (char *__s, int __c)
- __THROW __asm ("index") __attribute_pure__ __nonnull ((1));
- extern __const char *index (__const char *__s, int __c)
- __THROW __asm ("index") __attribute_pure__ __nonnull ((1));
-
- # if defined __OPTIMIZE__ && !defined __CORRECT_ISO_CPP_STRING_H_PROTO
- __extern_always_inline char *
- index (char *__s, int __c) __THROW
- {
- return __builtin_index (__s, __c);
- }
-
- __extern_always_inline __const char *
- index (__const char *__s, int __c) __THROW
- {
- return __builtin_index (__s, __c);
- }
- # endif
- }
- # else
- extern char *index (__const char *__s, int __c)
- __THROW __attribute_pure__ __nonnull ((1));
- # endif
-
- /* Find the last occurrence of C in S (same as strrchr). */
- # ifdef __CORRECT_ISO_CPP_STRINGS_H_PROTO
- extern "C++"
- {
- extern char *rindex (char *__s, int __c)
- __THROW __asm ("rindex") __attribute_pure__ __nonnull ((1));
- extern __const char *rindex (__const char *__s, int __c)
- __THROW __asm ("rindex") __attribute_pure__ __nonnull ((1));
-
- # if defined __OPTIMIZE__ && !defined __CORRECT_ISO_CPP_STRING_H_PROTO
- __extern_always_inline char *
- rindex (char *__s, int __c) __THROW
- {
- return __builtin_rindex (__s, __c);
- }
-
- __extern_always_inline __const char *
- rindex (__const char *__s, int __c) __THROW
- {
- return __builtin_rindex (__s, __c);
- }
- #endif
- }
- # else
- extern char *rindex (__const char *__s, int __c)
- __THROW __attribute_pure__ __nonnull ((1));
- # endif
-
- /* Compare S1 and S2, ignoring case. */
- extern int strcasecmp (__const char *__s1, __const char *__s2)
- __THROW __attribute_pure__;
-
- /* 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__;
-
- #ifdef __USE_XOPEN2K8
- /* The following functions are equivalent to the both above but they
- take the locale they use for the collation as an extra argument.
- This is not standardsized but something like will come. */
- # include <xlocale.h>
-
- /* Again versions of a few functions which use the given locale instead
- of the global one. */
- extern int strcasecmp_l (__const char *__s1, __const char *__s2,
- __locale_t __loc)
- __THROW __attribute_pure__ __nonnull ((1, 2, 3));
-
- extern int strncasecmp_l (__const char *__s1, __const char *__s2,
- size_t __n, __locale_t __loc)
- __THROW __attribute_pure__ __nonnull ((1, 2, 4));
- #endif
-
- __END_DECLS
-
- #endif /* string.h */
-
- #endif /* strings.h */
-