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- /* Copyright (C) 1991-2016 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, see
- <http://www.gnu.org/licenses/>. */
- #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_MISC isn't defined, then
- these aren't defined in string.h, so we need to define them here. */
- #if !defined _STRING_H || !defined __USE_MISC
- # 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
- # if defined __USE_MISC || !defined __USE_XOPEN2K8
- /* 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;
- /* 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
- # endif
- #if defined __USE_MISC || !defined __USE_XOPEN2K8 || defined __USE_XOPEN2K8XSI
- /* 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));
- #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 */
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