140 lines
4.5 KiB
C
140 lines
4.5 KiB
C
/* Copyright (C) 1991-2013 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_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
|
|
|
|
# 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 */
|