140 lines
4.5 KiB
C
140 lines
4.5 KiB
C
/* Copyright (C) 1991-2015 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<http://www.gnu.org/licenses/>. */
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#ifndef _STRINGS_H
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#define _STRINGS_H 1
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/* We don't need and should not read this file if <string.h> was already
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read. The one exception being that if __USE_MISC isn't defined, then
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these aren't defined in string.h, so we need to define them here. */
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#if !defined _STRING_H || !defined __USE_MISC
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# include <features.h>
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# define __need_size_t
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# include <stddef.h>
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/* Tell the caller that we provide correct C++ prototypes. */
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# if defined __cplusplus && __GNUC_PREREQ (4, 4)
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# define __CORRECT_ISO_CPP_STRINGS_H_PROTO
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# endif
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__BEGIN_DECLS
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# if defined __USE_MISC || !defined __USE_XOPEN2K8
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/* Compare N bytes of S1 and S2 (same as memcmp). */
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extern int bcmp (const void *__s1, const void *__s2, size_t __n)
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__THROW __attribute_pure__;
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/* Copy N bytes of SRC to DEST (like memmove, but args reversed). */
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extern void bcopy (const void *__src, void *__dest, size_t __n) __THROW;
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/* Set N bytes of S to 0. */
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extern void bzero (void *__s, size_t __n) __THROW;
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/* Find the first occurrence of C in S (same as strchr). */
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# ifdef __CORRECT_ISO_CPP_STRINGS_H_PROTO
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extern "C++"
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{
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extern char *index (char *__s, int __c)
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__THROW __asm ("index") __attribute_pure__ __nonnull ((1));
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extern const char *index (const char *__s, int __c)
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__THROW __asm ("index") __attribute_pure__ __nonnull ((1));
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# if defined __OPTIMIZE__ && !defined __CORRECT_ISO_CPP_STRING_H_PROTO
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__extern_always_inline char *
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index (char *__s, int __c) __THROW
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{
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return __builtin_index (__s, __c);
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}
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__extern_always_inline const char *
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index (const char *__s, int __c) __THROW
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{
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return __builtin_index (__s, __c);
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}
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# endif
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}
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# else
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extern char *index (const char *__s, int __c)
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__THROW __attribute_pure__ __nonnull ((1));
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# endif
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/* Find the last occurrence of C in S (same as strrchr). */
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# ifdef __CORRECT_ISO_CPP_STRINGS_H_PROTO
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extern "C++"
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{
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extern char *rindex (char *__s, int __c)
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__THROW __asm ("rindex") __attribute_pure__ __nonnull ((1));
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extern const char *rindex (const char *__s, int __c)
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__THROW __asm ("rindex") __attribute_pure__ __nonnull ((1));
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# if defined __OPTIMIZE__ && !defined __CORRECT_ISO_CPP_STRING_H_PROTO
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__extern_always_inline char *
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rindex (char *__s, int __c) __THROW
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{
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return __builtin_rindex (__s, __c);
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}
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__extern_always_inline const char *
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rindex (const char *__s, int __c) __THROW
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{
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return __builtin_rindex (__s, __c);
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}
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# endif
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}
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# else
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extern char *rindex (const char *__s, int __c)
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__THROW __attribute_pure__ __nonnull ((1));
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# endif
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# endif
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#if defined __USE_MISC || !defined __USE_XOPEN2K8 || defined __USE_XOPEN2K8XSI
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/* Return the position of the first bit set in I, or 0 if none are set.
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The least-significant bit is position 1, the most-significant 32. */
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extern int ffs (int __i) __THROW __attribute__ ((const));
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#endif
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/* Compare S1 and S2, ignoring case. */
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extern int strcasecmp (const char *__s1, const char *__s2)
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__THROW __attribute_pure__;
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/* Compare no more than N chars of S1 and S2, ignoring case. */
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extern int strncasecmp (const char *__s1, const char *__s2, size_t __n)
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__THROW __attribute_pure__;
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#ifdef __USE_XOPEN2K8
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/* The following functions are equivalent to the both above but they
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take the locale they use for the collation as an extra argument.
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This is not standardsized but something like will come. */
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# include <xlocale.h>
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/* Again versions of a few functions which use the given locale instead
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of the global one. */
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extern int strcasecmp_l (const char *__s1, const char *__s2, __locale_t __loc)
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__THROW __attribute_pure__ __nonnull ((1, 2, 3));
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extern int strncasecmp_l (const char *__s1, const char *__s2,
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size_t __n, __locale_t __loc)
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__THROW __attribute_pure__ __nonnull ((1, 2, 4));
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#endif
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__END_DECLS
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#endif /* string.h */
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#endif /* strings.h */
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