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7b037c095e
* string/string.h [__USE_MISC]: Include strings.h. (__bzero, bcmp, bcopy, bzero, index, rindex) (strcasecmp, strncasecmp, strcasecmp_l, strncasecmp_l) (ffs, ffsl, ffsll): Don't declare. * string/strings.h: Do not suppress the file if string.h has already been included. (bcmp, bcopy, bzero, strcasecmp, strncasecmp): Add __nonnull annotations. (index, rindex): Define inline forwarders even if __CORRECT_ISO_CPP_STRING_H_PROTO is defined. (ffs): Use __attribute_const__. (ffsl, ffsll): Declare here. (strcasecmp_l, strncasecmp_l): Correct comments; these functions have now been standardized. * include/string.h (__bzero): Declare here.
148 lines
4.6 KiB
C
148 lines
4.6 KiB
C
/* Copyright (C) 1991-2017 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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#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__ __nonnull ((1, 2));
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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)
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__THROW __nonnull ((1, 2));
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/* Set N bytes of S to 0. */
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extern void bzero (void *__s, size_t __n) __THROW __nonnull ((1));
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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__
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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__
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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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/* The following two functions are non-standard but necessary for non-32 bit
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platforms. */
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# ifdef __USE_GNU
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extern int ffsl (long int __l) __THROW __attribute_const__;
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__extension__ extern int ffsll (long long int __ll)
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__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__ __nonnull ((1, 2));
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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__ __nonnull ((1, 2));
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#ifdef __USE_XOPEN2K8
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# include <xlocale.h>
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/* Compare S1 and S2, ignoring case, using collation rules from LOC. */
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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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/* Compare no more than N chars of S1 and S2, ignoring case, using
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collation rules from LOC. */
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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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#if __GNUC_PREREQ (3,4) && __USE_FORTIFY_LEVEL > 0 \
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&& defined __fortify_function
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/* Functions with security checks. */
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# if defined __USE_MISC || !defined __USE_XOPEN2K8
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# include <bits/strings_fortified.h>
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# endif
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#endif
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#endif /* strings.h */
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