| 1 | /* A GNU-like <string.h>.
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| 2 |
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| 3 | Copyright (C) 1995-1996, 2001-2012 Free Software Foundation, Inc.
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| 4 |
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| 5 | This program is free software; you can redistribute it and/or modify
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| 6 | it under the terms of the GNU General Public License as published by
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| 7 | the Free Software Foundation; either version 3, or (at your option)
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| 8 | any later version.
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| 9 |
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| 10 | This program is distributed in the hope that it will be useful,
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| 11 | but WITHOUT ANY WARRANTY; without even the implied warranty of
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| 12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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| 13 | GNU General Public License for more details.
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| 14 |
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| 15 | You should have received a copy of the GNU General Public License
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| 16 | along with this program; if not, see <http://www.gnu.org/licenses/>. */
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| 17 |
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| 18 | #ifndef _@GUARD_PREFIX@_STRING_H
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| 19 |
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| 20 | #if __GNUC__ >= 3
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| 21 | @PRAGMA_SYSTEM_HEADER@
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| 22 | #endif
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| 23 | @PRAGMA_COLUMNS@
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| 24 |
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| 25 | /* The include_next requires a split double-inclusion guard. */
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| 26 | #@INCLUDE_NEXT@ @NEXT_STRING_H@
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| 27 |
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| 28 | #ifndef _@GUARD_PREFIX@_STRING_H
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| 29 | #define _@GUARD_PREFIX@_STRING_H
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| 30 |
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| 31 | /* NetBSD 5.0 mis-defines NULL. */
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| 32 | #include <stddef.h>
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| 33 |
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| 34 | /* MirBSD defines mbslen as a macro. */
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| 35 | #if @GNULIB_MBSLEN@ && defined __MirBSD__
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| 36 | # include <wchar.h>
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| 37 | #endif
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| 38 |
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| 39 | /* The __attribute__ feature is available in gcc versions 2.5 and later.
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| 40 | The attribute __pure__ was added in gcc 2.96. */
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| 41 | #if __GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 96)
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| 42 | # define _GL_ATTRIBUTE_PURE __attribute__ ((__pure__))
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| 43 | #else
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| 44 | # define _GL_ATTRIBUTE_PURE /* empty */
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| 45 | #endif
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| 46 |
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| 47 | /* NetBSD 5.0 declares strsignal in <unistd.h>, not in <string.h>. */
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| 48 | /* But in any case avoid namespace pollution on glibc systems. */
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| 49 | #if (@GNULIB_STRSIGNAL@ || defined GNULIB_POSIXCHECK) && defined __NetBSD__ \
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| 50 | && ! defined __GLIBC__
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| 51 | # include <unistd.h>
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| 52 | #endif
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| 53 |
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| 54 | /* The definitions of _GL_FUNCDECL_RPL etc. are copied here. */
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| 55 |
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| 56 | /* The definition of _GL_ARG_NONNULL is copied here. */
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| 57 |
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| 58 | /* The definition of _GL_WARN_ON_USE is copied here. */
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| 59 |
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| 60 |
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| 61 | /* Find the index of the least-significant set bit. */
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| 62 | #if @GNULIB_FFSL@
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| 63 | # if !@HAVE_FFSL@
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| 64 | _GL_FUNCDECL_SYS (ffsl, int, (long int i));
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| 65 | # endif
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| 66 | _GL_CXXALIAS_SYS (ffsl, int, (long int i));
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| 67 | _GL_CXXALIASWARN (ffsl);
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| 68 | #elif defined GNULIB_POSIXCHECK
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| 69 | # undef ffsl
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| 70 | # if HAVE_RAW_DECL_FFSL
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| 71 | _GL_WARN_ON_USE (ffsl, "ffsl is not portable - use the ffsl module");
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| 72 | # endif
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| 73 | #endif
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| 74 |
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| 75 |
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| 76 | /* Find the index of the least-significant set bit. */
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| 77 | #if @GNULIB_FFSLL@
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| 78 | # if !@HAVE_FFSLL@
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| 79 | _GL_FUNCDECL_SYS (ffsll, int, (long long int i));
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| 80 | # endif
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| 81 | _GL_CXXALIAS_SYS (ffsll, int, (long long int i));
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| 82 | _GL_CXXALIASWARN (ffsll);
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| 83 | #elif defined GNULIB_POSIXCHECK
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| 84 | # undef ffsll
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| 85 | # if HAVE_RAW_DECL_FFSLL
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| 86 | _GL_WARN_ON_USE (ffsll, "ffsll is not portable - use the ffsll module");
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| 87 | # endif
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| 88 | #endif
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| 89 |
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| 90 |
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| 91 | /* Return the first instance of C within N bytes of S, or NULL. */
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| 92 | #if @GNULIB_MEMCHR@
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| 93 | # if @REPLACE_MEMCHR@
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| 94 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
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| 95 | # define memchr rpl_memchr
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| 96 | # endif
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| 97 | _GL_FUNCDECL_RPL (memchr, void *, (void const *__s, int __c, size_t __n)
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| 98 | _GL_ATTRIBUTE_PURE
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| 99 | _GL_ARG_NONNULL ((1)));
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| 100 | _GL_CXXALIAS_RPL (memchr, void *, (void const *__s, int __c, size_t __n));
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| 101 | # else
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| 102 | # if ! @HAVE_MEMCHR@
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| 103 | _GL_FUNCDECL_SYS (memchr, void *, (void const *__s, int __c, size_t __n)
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| 104 | _GL_ATTRIBUTE_PURE
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| 105 | _GL_ARG_NONNULL ((1)));
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| 106 | # endif
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| 107 | /* On some systems, this function is defined as an overloaded function:
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| 108 | extern "C" { const void * std::memchr (const void *, int, size_t); }
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| 109 | extern "C++" { void * std::memchr (void *, int, size_t); } */
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| 110 | _GL_CXXALIAS_SYS_CAST2 (memchr,
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| 111 | void *, (void const *__s, int __c, size_t __n),
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| 112 | void const *, (void const *__s, int __c, size_t __n));
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| 113 | # endif
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| 114 | # if ((__GLIBC__ == 2 && __GLIBC_MINOR__ >= 10) && !defined __UCLIBC__) \
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| 115 | && (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 4))
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| 116 | _GL_CXXALIASWARN1 (memchr, void *, (void *__s, int __c, size_t __n));
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| 117 | _GL_CXXALIASWARN1 (memchr, void const *,
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| 118 | (void const *__s, int __c, size_t __n));
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| 119 | # else
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| 120 | _GL_CXXALIASWARN (memchr);
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| 121 | # endif
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| 122 | #elif defined GNULIB_POSIXCHECK
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| 123 | # undef memchr
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| 124 | /* Assume memchr is always declared. */
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| 125 | _GL_WARN_ON_USE (memchr, "memchr has platform-specific bugs - "
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| 126 | "use gnulib module memchr for portability" );
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| 127 | #endif
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| 128 |
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| 129 | /* Return the first occurrence of NEEDLE in HAYSTACK. */
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| 130 | #if @GNULIB_MEMMEM@
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| 131 | # if @REPLACE_MEMMEM@
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| 132 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
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| 133 | # define memmem rpl_memmem
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| 134 | # endif
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| 135 | _GL_FUNCDECL_RPL (memmem, void *,
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| 136 | (void const *__haystack, size_t __haystack_len,
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| 137 | void const *__needle, size_t __needle_len)
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| 138 | _GL_ATTRIBUTE_PURE
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| 139 | _GL_ARG_NONNULL ((1, 3)));
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| 140 | _GL_CXXALIAS_RPL (memmem, void *,
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| 141 | (void const *__haystack, size_t __haystack_len,
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| 142 | void const *__needle, size_t __needle_len));
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| 143 | # else
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| 144 | # if ! @HAVE_DECL_MEMMEM@
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| 145 | _GL_FUNCDECL_SYS (memmem, void *,
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| 146 | (void const *__haystack, size_t __haystack_len,
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| 147 | void const *__needle, size_t __needle_len)
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| 148 | _GL_ATTRIBUTE_PURE
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| 149 | _GL_ARG_NONNULL ((1, 3)));
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| 150 | # endif
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| 151 | _GL_CXXALIAS_SYS (memmem, void *,
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| 152 | (void const *__haystack, size_t __haystack_len,
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| 153 | void const *__needle, size_t __needle_len));
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| 154 | # endif
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| 155 | _GL_CXXALIASWARN (memmem);
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| 156 | #elif defined GNULIB_POSIXCHECK
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| 157 | # undef memmem
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| 158 | # if HAVE_RAW_DECL_MEMMEM
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| 159 | _GL_WARN_ON_USE (memmem, "memmem is unportable and often quadratic - "
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| 160 | "use gnulib module memmem-simple for portability, "
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| 161 | "and module memmem for speed" );
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| 162 | # endif
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| 163 | #endif
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| 164 |
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| 165 | /* Copy N bytes of SRC to DEST, return pointer to bytes after the
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| 166 | last written byte. */
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| 167 | #if @GNULIB_MEMPCPY@
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| 168 | # if ! @HAVE_MEMPCPY@
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| 169 | _GL_FUNCDECL_SYS (mempcpy, void *,
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| 170 | (void *restrict __dest, void const *restrict __src,
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| 171 | size_t __n)
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| 172 | _GL_ARG_NONNULL ((1, 2)));
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| 173 | # endif
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| 174 | _GL_CXXALIAS_SYS (mempcpy, void *,
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| 175 | (void *restrict __dest, void const *restrict __src,
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| 176 | size_t __n));
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| 177 | _GL_CXXALIASWARN (mempcpy);
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| 178 | #elif defined GNULIB_POSIXCHECK
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| 179 | # undef mempcpy
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| 180 | # if HAVE_RAW_DECL_MEMPCPY
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| 181 | _GL_WARN_ON_USE (mempcpy, "mempcpy is unportable - "
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| 182 | "use gnulib module mempcpy for portability");
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| 183 | # endif
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| 184 | #endif
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| 185 |
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| 186 | /* Search backwards through a block for a byte (specified as an int). */
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| 187 | #if @GNULIB_MEMRCHR@
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| 188 | # if ! @HAVE_DECL_MEMRCHR@
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| 189 | _GL_FUNCDECL_SYS (memrchr, void *, (void const *, int, size_t)
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| 190 | _GL_ATTRIBUTE_PURE
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| 191 | _GL_ARG_NONNULL ((1)));
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| 192 | # endif
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| 193 | /* On some systems, this function is defined as an overloaded function:
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| 194 | extern "C++" { const void * std::memrchr (const void *, int, size_t); }
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| 195 | extern "C++" { void * std::memrchr (void *, int, size_t); } */
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| 196 | _GL_CXXALIAS_SYS_CAST2 (memrchr,
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| 197 | void *, (void const *, int, size_t),
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| 198 | void const *, (void const *, int, size_t));
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| 199 | # if ((__GLIBC__ == 2 && __GLIBC_MINOR__ >= 10) && !defined __UCLIBC__) \
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| 200 | && (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 4))
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| 201 | _GL_CXXALIASWARN1 (memrchr, void *, (void *, int, size_t));
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| 202 | _GL_CXXALIASWARN1 (memrchr, void const *, (void const *, int, size_t));
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| 203 | # else
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| 204 | _GL_CXXALIASWARN (memrchr);
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| 205 | # endif
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| 206 | #elif defined GNULIB_POSIXCHECK
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| 207 | # undef memrchr
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| 208 | # if HAVE_RAW_DECL_MEMRCHR
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| 209 | _GL_WARN_ON_USE (memrchr, "memrchr is unportable - "
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| 210 | "use gnulib module memrchr for portability");
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| 211 | # endif
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| 212 | #endif
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| 213 |
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| 214 | /* Find the first occurrence of C in S. More efficient than
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| 215 | memchr(S,C,N), at the expense of undefined behavior if C does not
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| 216 | occur within N bytes. */
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| 217 | #if @GNULIB_RAWMEMCHR@
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| 218 | # if ! @HAVE_RAWMEMCHR@
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| 219 | _GL_FUNCDECL_SYS (rawmemchr, void *, (void const *__s, int __c_in)
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| 220 | _GL_ATTRIBUTE_PURE
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| 221 | _GL_ARG_NONNULL ((1)));
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| 222 | # endif
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| 223 | /* On some systems, this function is defined as an overloaded function:
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| 224 | extern "C++" { const void * std::rawmemchr (const void *, int); }
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| 225 | extern "C++" { void * std::rawmemchr (void *, int); } */
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| 226 | _GL_CXXALIAS_SYS_CAST2 (rawmemchr,
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| 227 | void *, (void const *__s, int __c_in),
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| 228 | void const *, (void const *__s, int __c_in));
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| 229 | # if ((__GLIBC__ == 2 && __GLIBC_MINOR__ >= 10) && !defined __UCLIBC__) \
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| 230 | && (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 4))
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| 231 | _GL_CXXALIASWARN1 (rawmemchr, void *, (void *__s, int __c_in));
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| 232 | _GL_CXXALIASWARN1 (rawmemchr, void const *, (void const *__s, int __c_in));
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| 233 | # else
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| 234 | _GL_CXXALIASWARN (rawmemchr);
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| 235 | # endif
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| 236 | #elif defined GNULIB_POSIXCHECK
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| 237 | # undef rawmemchr
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| 238 | # if HAVE_RAW_DECL_RAWMEMCHR
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| 239 | _GL_WARN_ON_USE (rawmemchr, "rawmemchr is unportable - "
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| 240 | "use gnulib module rawmemchr for portability");
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| 241 | # endif
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| 242 | #endif
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| 243 |
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| 244 | /* Copy SRC to DST, returning the address of the terminating '\0' in DST. */
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| 245 | #if @GNULIB_STPCPY@
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| 246 | # if ! @HAVE_STPCPY@
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| 247 | _GL_FUNCDECL_SYS (stpcpy, char *,
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| 248 | (char *restrict __dst, char const *restrict __src)
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| 249 | _GL_ARG_NONNULL ((1, 2)));
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| 250 | # endif
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| 251 | _GL_CXXALIAS_SYS (stpcpy, char *,
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| 252 | (char *restrict __dst, char const *restrict __src));
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| 253 | _GL_CXXALIASWARN (stpcpy);
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| 254 | #elif defined GNULIB_POSIXCHECK
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| 255 | # undef stpcpy
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| 256 | # if HAVE_RAW_DECL_STPCPY
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| 257 | _GL_WARN_ON_USE (stpcpy, "stpcpy is unportable - "
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| 258 | "use gnulib module stpcpy for portability");
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| 259 | # endif
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| 260 | #endif
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| 261 |
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| 262 | /* Copy no more than N bytes of SRC to DST, returning a pointer past the
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| 263 | last non-NUL byte written into DST. */
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| 264 | #if @GNULIB_STPNCPY@
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| 265 | # if @REPLACE_STPNCPY@
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| 266 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
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| 267 | # undef stpncpy
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| 268 | # define stpncpy rpl_stpncpy
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| 269 | # endif
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| 270 | _GL_FUNCDECL_RPL (stpncpy, char *,
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| 271 | (char *restrict __dst, char const *restrict __src,
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| 272 | size_t __n)
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| 273 | _GL_ARG_NONNULL ((1, 2)));
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| 274 | _GL_CXXALIAS_RPL (stpncpy, char *,
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| 275 | (char *restrict __dst, char const *restrict __src,
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| 276 | size_t __n));
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| 277 | # else
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| 278 | # if ! @HAVE_STPNCPY@
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| 279 | _GL_FUNCDECL_SYS (stpncpy, char *,
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| 280 | (char *restrict __dst, char const *restrict __src,
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| 281 | size_t __n)
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| 282 | _GL_ARG_NONNULL ((1, 2)));
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| 283 | # endif
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| 284 | _GL_CXXALIAS_SYS (stpncpy, char *,
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| 285 | (char *restrict __dst, char const *restrict __src,
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| 286 | size_t __n));
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| 287 | # endif
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| 288 | _GL_CXXALIASWARN (stpncpy);
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| 289 | #elif defined GNULIB_POSIXCHECK
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| 290 | # undef stpncpy
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| 291 | # if HAVE_RAW_DECL_STPNCPY
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| 292 | _GL_WARN_ON_USE (stpncpy, "stpncpy is unportable - "
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| 293 | "use gnulib module stpncpy for portability");
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| 294 | # endif
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| 295 | #endif
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| 296 |
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| 297 | #if defined GNULIB_POSIXCHECK
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| 298 | /* strchr() does not work with multibyte strings if the locale encoding is
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| 299 | GB18030 and the character to be searched is a digit. */
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| 300 | # undef strchr
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| 301 | /* Assume strchr is always declared. */
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| 302 | _GL_WARN_ON_USE (strchr, "strchr cannot work correctly on character strings "
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| 303 | "in some multibyte locales - "
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| 304 | "use mbschr if you care about internationalization");
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| 305 | #endif
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| 306 |
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| 307 | /* Find the first occurrence of C in S or the final NUL byte. */
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| 308 | #if @GNULIB_STRCHRNUL@
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| 309 | # if @REPLACE_STRCHRNUL@
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| 310 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
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| 311 | # define strchrnul rpl_strchrnul
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| 312 | # endif
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| 313 | _GL_FUNCDECL_RPL (strchrnul, char *, (const char *__s, int __c_in)
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| 314 | _GL_ATTRIBUTE_PURE
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| 315 | _GL_ARG_NONNULL ((1)));
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| 316 | _GL_CXXALIAS_RPL (strchrnul, char *,
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| 317 | (const char *str, int ch));
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| 318 | # else
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| 319 | # if ! @HAVE_STRCHRNUL@
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| 320 | _GL_FUNCDECL_SYS (strchrnul, char *, (char const *__s, int __c_in)
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| 321 | _GL_ATTRIBUTE_PURE
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| 322 | _GL_ARG_NONNULL ((1)));
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| 323 | # endif
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| 324 | /* On some systems, this function is defined as an overloaded function:
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| 325 | extern "C++" { const char * std::strchrnul (const char *, int); }
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| 326 | extern "C++" { char * std::strchrnul (char *, int); } */
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| 327 | _GL_CXXALIAS_SYS_CAST2 (strchrnul,
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| 328 | char *, (char const *__s, int __c_in),
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| 329 | char const *, (char const *__s, int __c_in));
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| 330 | # endif
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| 331 | # if ((__GLIBC__ == 2 && __GLIBC_MINOR__ >= 10) && !defined __UCLIBC__) \
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| 332 | && (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 4))
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| 333 | _GL_CXXALIASWARN1 (strchrnul, char *, (char *__s, int __c_in));
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| 334 | _GL_CXXALIASWARN1 (strchrnul, char const *, (char const *__s, int __c_in));
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| 335 | # else
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| 336 | _GL_CXXALIASWARN (strchrnul);
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| 337 | # endif
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| 338 | #elif defined GNULIB_POSIXCHECK
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| 339 | # undef strchrnul
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| 340 | # if HAVE_RAW_DECL_STRCHRNUL
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| 341 | _GL_WARN_ON_USE (strchrnul, "strchrnul is unportable - "
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| 342 | "use gnulib module strchrnul for portability");
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| 343 | # endif
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| 344 | #endif
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| 345 |
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| 346 | /* Duplicate S, returning an identical malloc'd string. */
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| 347 | #if @GNULIB_STRDUP@
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| 348 | # if @REPLACE_STRDUP@
|
|---|
| 349 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
|
|---|
| 350 | # undef strdup
|
|---|
| 351 | # define strdup rpl_strdup
|
|---|
| 352 | # endif
|
|---|
| 353 | _GL_FUNCDECL_RPL (strdup, char *, (char const *__s) _GL_ARG_NONNULL ((1)));
|
|---|
| 354 | _GL_CXXALIAS_RPL (strdup, char *, (char const *__s));
|
|---|
| 355 | # else
|
|---|
| 356 | # if defined __cplusplus && defined GNULIB_NAMESPACE && defined strdup
|
|---|
| 357 | /* strdup exists as a function and as a macro. Get rid of the macro. */
|
|---|
| 358 | # undef strdup
|
|---|
| 359 | # endif
|
|---|
| 360 | # if !(@HAVE_DECL_STRDUP@ || defined strdup)
|
|---|
| 361 | _GL_FUNCDECL_SYS (strdup, char *, (char const *__s) _GL_ARG_NONNULL ((1)));
|
|---|
| 362 | # endif
|
|---|
| 363 | _GL_CXXALIAS_SYS (strdup, char *, (char const *__s));
|
|---|
| 364 | # endif
|
|---|
| 365 | _GL_CXXALIASWARN (strdup);
|
|---|
| 366 | #elif defined GNULIB_POSIXCHECK
|
|---|
| 367 | # undef strdup
|
|---|
| 368 | # if HAVE_RAW_DECL_STRDUP
|
|---|
| 369 | _GL_WARN_ON_USE (strdup, "strdup is unportable - "
|
|---|
| 370 | "use gnulib module strdup for portability");
|
|---|
| 371 | # endif
|
|---|
| 372 | #endif
|
|---|
| 373 |
|
|---|
| 374 | /* Append no more than N characters from SRC onto DEST. */
|
|---|
| 375 | #if @GNULIB_STRNCAT@
|
|---|
| 376 | # if @REPLACE_STRNCAT@
|
|---|
| 377 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
|
|---|
| 378 | # undef strncat
|
|---|
| 379 | # define strncat rpl_strncat
|
|---|
| 380 | # endif
|
|---|
| 381 | _GL_FUNCDECL_RPL (strncat, char *, (char *dest, const char *src, size_t n)
|
|---|
| 382 | _GL_ARG_NONNULL ((1, 2)));
|
|---|
| 383 | _GL_CXXALIAS_RPL (strncat, char *, (char *dest, const char *src, size_t n));
|
|---|
| 384 | # else
|
|---|
| 385 | _GL_CXXALIAS_SYS (strncat, char *, (char *dest, const char *src, size_t n));
|
|---|
| 386 | # endif
|
|---|
| 387 | _GL_CXXALIASWARN (strncat);
|
|---|
| 388 | #elif defined GNULIB_POSIXCHECK
|
|---|
| 389 | # undef strncat
|
|---|
| 390 | # if HAVE_RAW_DECL_STRNCAT
|
|---|
| 391 | _GL_WARN_ON_USE (strncat, "strncat is unportable - "
|
|---|
| 392 | "use gnulib module strncat for portability");
|
|---|
| 393 | # endif
|
|---|
| 394 | #endif
|
|---|
| 395 |
|
|---|
| 396 | /* Return a newly allocated copy of at most N bytes of STRING. */
|
|---|
| 397 | #if @GNULIB_STRNDUP@
|
|---|
| 398 | # if @REPLACE_STRNDUP@
|
|---|
| 399 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
|
|---|
| 400 | # undef strndup
|
|---|
| 401 | # define strndup rpl_strndup
|
|---|
| 402 | # endif
|
|---|
| 403 | _GL_FUNCDECL_RPL (strndup, char *, (char const *__string, size_t __n)
|
|---|
| 404 | _GL_ARG_NONNULL ((1)));
|
|---|
| 405 | _GL_CXXALIAS_RPL (strndup, char *, (char const *__string, size_t __n));
|
|---|
| 406 | # else
|
|---|
| 407 | # if ! @HAVE_DECL_STRNDUP@
|
|---|
| 408 | _GL_FUNCDECL_SYS (strndup, char *, (char const *__string, size_t __n)
|
|---|
| 409 | _GL_ARG_NONNULL ((1)));
|
|---|
| 410 | # endif
|
|---|
| 411 | _GL_CXXALIAS_SYS (strndup, char *, (char const *__string, size_t __n));
|
|---|
| 412 | # endif
|
|---|
| 413 | _GL_CXXALIASWARN (strndup);
|
|---|
| 414 | #elif defined GNULIB_POSIXCHECK
|
|---|
| 415 | # undef strndup
|
|---|
| 416 | # if HAVE_RAW_DECL_STRNDUP
|
|---|
| 417 | _GL_WARN_ON_USE (strndup, "strndup is unportable - "
|
|---|
| 418 | "use gnulib module strndup for portability");
|
|---|
| 419 | # endif
|
|---|
| 420 | #endif
|
|---|
| 421 |
|
|---|
| 422 | /* Find the length (number of bytes) of STRING, but scan at most
|
|---|
| 423 | MAXLEN bytes. If no '\0' terminator is found in that many bytes,
|
|---|
| 424 | return MAXLEN. */
|
|---|
| 425 | #if @GNULIB_STRNLEN@
|
|---|
| 426 | # if @REPLACE_STRNLEN@
|
|---|
| 427 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
|
|---|
| 428 | # undef strnlen
|
|---|
| 429 | # define strnlen rpl_strnlen
|
|---|
| 430 | # endif
|
|---|
| 431 | _GL_FUNCDECL_RPL (strnlen, size_t, (char const *__string, size_t __maxlen)
|
|---|
| 432 | _GL_ATTRIBUTE_PURE
|
|---|
| 433 | _GL_ARG_NONNULL ((1)));
|
|---|
| 434 | _GL_CXXALIAS_RPL (strnlen, size_t, (char const *__string, size_t __maxlen));
|
|---|
| 435 | # else
|
|---|
| 436 | # if ! @HAVE_DECL_STRNLEN@
|
|---|
| 437 | _GL_FUNCDECL_SYS (strnlen, size_t, (char const *__string, size_t __maxlen)
|
|---|
| 438 | _GL_ATTRIBUTE_PURE
|
|---|
| 439 | _GL_ARG_NONNULL ((1)));
|
|---|
| 440 | # endif
|
|---|
| 441 | _GL_CXXALIAS_SYS (strnlen, size_t, (char const *__string, size_t __maxlen));
|
|---|
| 442 | # endif
|
|---|
| 443 | _GL_CXXALIASWARN (strnlen);
|
|---|
| 444 | #elif defined GNULIB_POSIXCHECK
|
|---|
| 445 | # undef strnlen
|
|---|
| 446 | # if HAVE_RAW_DECL_STRNLEN
|
|---|
| 447 | _GL_WARN_ON_USE (strnlen, "strnlen is unportable - "
|
|---|
| 448 | "use gnulib module strnlen for portability");
|
|---|
| 449 | # endif
|
|---|
| 450 | #endif
|
|---|
| 451 |
|
|---|
| 452 | #if defined GNULIB_POSIXCHECK
|
|---|
| 453 | /* strcspn() assumes the second argument is a list of single-byte characters.
|
|---|
| 454 | Even in this simple case, it does not work with multibyte strings if the
|
|---|
| 455 | locale encoding is GB18030 and one of the characters to be searched is a
|
|---|
| 456 | digit. */
|
|---|
| 457 | # undef strcspn
|
|---|
| 458 | /* Assume strcspn is always declared. */
|
|---|
| 459 | _GL_WARN_ON_USE (strcspn, "strcspn cannot work correctly on character strings "
|
|---|
| 460 | "in multibyte locales - "
|
|---|
| 461 | "use mbscspn if you care about internationalization");
|
|---|
| 462 | #endif
|
|---|
| 463 |
|
|---|
| 464 | /* Find the first occurrence in S of any character in ACCEPT. */
|
|---|
| 465 | #if @GNULIB_STRPBRK@
|
|---|
| 466 | # if ! @HAVE_STRPBRK@
|
|---|
| 467 | _GL_FUNCDECL_SYS (strpbrk, char *, (char const *__s, char const *__accept)
|
|---|
| 468 | _GL_ATTRIBUTE_PURE
|
|---|
| 469 | _GL_ARG_NONNULL ((1, 2)));
|
|---|
| 470 | # endif
|
|---|
| 471 | /* On some systems, this function is defined as an overloaded function:
|
|---|
| 472 | extern "C" { const char * strpbrk (const char *, const char *); }
|
|---|
| 473 | extern "C++" { char * strpbrk (char *, const char *); } */
|
|---|
| 474 | _GL_CXXALIAS_SYS_CAST2 (strpbrk,
|
|---|
| 475 | char *, (char const *__s, char const *__accept),
|
|---|
| 476 | const char *, (char const *__s, char const *__accept));
|
|---|
| 477 | # if ((__GLIBC__ == 2 && __GLIBC_MINOR__ >= 10) && !defined __UCLIBC__) \
|
|---|
| 478 | && (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 4))
|
|---|
| 479 | _GL_CXXALIASWARN1 (strpbrk, char *, (char *__s, char const *__accept));
|
|---|
| 480 | _GL_CXXALIASWARN1 (strpbrk, char const *,
|
|---|
| 481 | (char const *__s, char const *__accept));
|
|---|
| 482 | # else
|
|---|
| 483 | _GL_CXXALIASWARN (strpbrk);
|
|---|
| 484 | # endif
|
|---|
| 485 | # if defined GNULIB_POSIXCHECK
|
|---|
| 486 | /* strpbrk() assumes the second argument is a list of single-byte characters.
|
|---|
| 487 | Even in this simple case, it does not work with multibyte strings if the
|
|---|
| 488 | locale encoding is GB18030 and one of the characters to be searched is a
|
|---|
| 489 | digit. */
|
|---|
| 490 | # undef strpbrk
|
|---|
| 491 | _GL_WARN_ON_USE (strpbrk, "strpbrk cannot work correctly on character strings "
|
|---|
| 492 | "in multibyte locales - "
|
|---|
| 493 | "use mbspbrk if you care about internationalization");
|
|---|
| 494 | # endif
|
|---|
| 495 | #elif defined GNULIB_POSIXCHECK
|
|---|
| 496 | # undef strpbrk
|
|---|
| 497 | # if HAVE_RAW_DECL_STRPBRK
|
|---|
| 498 | _GL_WARN_ON_USE (strpbrk, "strpbrk is unportable - "
|
|---|
| 499 | "use gnulib module strpbrk for portability");
|
|---|
| 500 | # endif
|
|---|
| 501 | #endif
|
|---|
| 502 |
|
|---|
| 503 | #if defined GNULIB_POSIXCHECK
|
|---|
| 504 | /* strspn() assumes the second argument is a list of single-byte characters.
|
|---|
| 505 | Even in this simple case, it cannot work with multibyte strings. */
|
|---|
| 506 | # undef strspn
|
|---|
| 507 | /* Assume strspn is always declared. */
|
|---|
| 508 | _GL_WARN_ON_USE (strspn, "strspn cannot work correctly on character strings "
|
|---|
| 509 | "in multibyte locales - "
|
|---|
| 510 | "use mbsspn if you care about internationalization");
|
|---|
| 511 | #endif
|
|---|
| 512 |
|
|---|
| 513 | #if defined GNULIB_POSIXCHECK
|
|---|
| 514 | /* strrchr() does not work with multibyte strings if the locale encoding is
|
|---|
| 515 | GB18030 and the character to be searched is a digit. */
|
|---|
| 516 | # undef strrchr
|
|---|
| 517 | /* Assume strrchr is always declared. */
|
|---|
| 518 | _GL_WARN_ON_USE (strrchr, "strrchr cannot work correctly on character strings "
|
|---|
| 519 | "in some multibyte locales - "
|
|---|
| 520 | "use mbsrchr if you care about internationalization");
|
|---|
| 521 | #endif
|
|---|
| 522 |
|
|---|
| 523 | /* Search the next delimiter (char listed in DELIM) starting at *STRINGP.
|
|---|
| 524 | If one is found, overwrite it with a NUL, and advance *STRINGP
|
|---|
| 525 | to point to the next char after it. Otherwise, set *STRINGP to NULL.
|
|---|
| 526 | If *STRINGP was already NULL, nothing happens.
|
|---|
| 527 | Return the old value of *STRINGP.
|
|---|
| 528 |
|
|---|
| 529 | This is a variant of strtok() that is multithread-safe and supports
|
|---|
| 530 | empty fields.
|
|---|
| 531 |
|
|---|
| 532 | Caveat: It modifies the original string.
|
|---|
| 533 | Caveat: These functions cannot be used on constant strings.
|
|---|
| 534 | Caveat: The identity of the delimiting character is lost.
|
|---|
| 535 | Caveat: It doesn't work with multibyte strings unless all of the delimiter
|
|---|
| 536 | characters are ASCII characters < 0x30.
|
|---|
| 537 |
|
|---|
| 538 | See also strtok_r(). */
|
|---|
| 539 | #if @GNULIB_STRSEP@
|
|---|
| 540 | # if ! @HAVE_STRSEP@
|
|---|
| 541 | _GL_FUNCDECL_SYS (strsep, char *,
|
|---|
| 542 | (char **restrict __stringp, char const *restrict __delim)
|
|---|
| 543 | _GL_ARG_NONNULL ((1, 2)));
|
|---|
| 544 | # endif
|
|---|
| 545 | _GL_CXXALIAS_SYS (strsep, char *,
|
|---|
| 546 | (char **restrict __stringp, char const *restrict __delim));
|
|---|
| 547 | _GL_CXXALIASWARN (strsep);
|
|---|
| 548 | # if defined GNULIB_POSIXCHECK
|
|---|
| 549 | # undef strsep
|
|---|
| 550 | _GL_WARN_ON_USE (strsep, "strsep cannot work correctly on character strings "
|
|---|
| 551 | "in multibyte locales - "
|
|---|
| 552 | "use mbssep if you care about internationalization");
|
|---|
| 553 | # endif
|
|---|
| 554 | #elif defined GNULIB_POSIXCHECK
|
|---|
| 555 | # undef strsep
|
|---|
| 556 | # if HAVE_RAW_DECL_STRSEP
|
|---|
| 557 | _GL_WARN_ON_USE (strsep, "strsep is unportable - "
|
|---|
| 558 | "use gnulib module strsep for portability");
|
|---|
| 559 | # endif
|
|---|
| 560 | #endif
|
|---|
| 561 |
|
|---|
| 562 | #if @GNULIB_STRSTR@
|
|---|
| 563 | # if @REPLACE_STRSTR@
|
|---|
| 564 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
|
|---|
| 565 | # define strstr rpl_strstr
|
|---|
| 566 | # endif
|
|---|
| 567 | _GL_FUNCDECL_RPL (strstr, char *, (const char *haystack, const char *needle)
|
|---|
| 568 | _GL_ATTRIBUTE_PURE
|
|---|
| 569 | _GL_ARG_NONNULL ((1, 2)));
|
|---|
| 570 | _GL_CXXALIAS_RPL (strstr, char *, (const char *haystack, const char *needle));
|
|---|
| 571 | # else
|
|---|
| 572 | /* On some systems, this function is defined as an overloaded function:
|
|---|
| 573 | extern "C++" { const char * strstr (const char *, const char *); }
|
|---|
| 574 | extern "C++" { char * strstr (char *, const char *); } */
|
|---|
| 575 | _GL_CXXALIAS_SYS_CAST2 (strstr,
|
|---|
| 576 | char *, (const char *haystack, const char *needle),
|
|---|
| 577 | const char *, (const char *haystack, const char *needle));
|
|---|
| 578 | # endif
|
|---|
| 579 | # if ((__GLIBC__ == 2 && __GLIBC_MINOR__ >= 10) && !defined __UCLIBC__) \
|
|---|
| 580 | && (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 4))
|
|---|
| 581 | _GL_CXXALIASWARN1 (strstr, char *, (char *haystack, const char *needle));
|
|---|
| 582 | _GL_CXXALIASWARN1 (strstr, const char *,
|
|---|
| 583 | (const char *haystack, const char *needle));
|
|---|
| 584 | # else
|
|---|
| 585 | _GL_CXXALIASWARN (strstr);
|
|---|
| 586 | # endif
|
|---|
| 587 | #elif defined GNULIB_POSIXCHECK
|
|---|
| 588 | /* strstr() does not work with multibyte strings if the locale encoding is
|
|---|
| 589 | different from UTF-8:
|
|---|
| 590 | POSIX says that it operates on "strings", and "string" in POSIX is defined
|
|---|
| 591 | as a sequence of bytes, not of characters. */
|
|---|
| 592 | # undef strstr
|
|---|
| 593 | /* Assume strstr is always declared. */
|
|---|
| 594 | _GL_WARN_ON_USE (strstr, "strstr is quadratic on many systems, and cannot "
|
|---|
| 595 | "work correctly on character strings in most "
|
|---|
| 596 | "multibyte locales - "
|
|---|
| 597 | "use mbsstr if you care about internationalization, "
|
|---|
| 598 | "or use strstr if you care about speed");
|
|---|
| 599 | #endif
|
|---|
| 600 |
|
|---|
| 601 | /* Find the first occurrence of NEEDLE in HAYSTACK, using case-insensitive
|
|---|
| 602 | comparison. */
|
|---|
| 603 | #if @GNULIB_STRCASESTR@
|
|---|
| 604 | # if @REPLACE_STRCASESTR@
|
|---|
| 605 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
|
|---|
| 606 | # define strcasestr rpl_strcasestr
|
|---|
| 607 | # endif
|
|---|
| 608 | _GL_FUNCDECL_RPL (strcasestr, char *,
|
|---|
| 609 | (const char *haystack, const char *needle)
|
|---|
| 610 | _GL_ATTRIBUTE_PURE
|
|---|
| 611 | _GL_ARG_NONNULL ((1, 2)));
|
|---|
| 612 | _GL_CXXALIAS_RPL (strcasestr, char *,
|
|---|
| 613 | (const char *haystack, const char *needle));
|
|---|
| 614 | # else
|
|---|
| 615 | # if ! @HAVE_STRCASESTR@
|
|---|
| 616 | _GL_FUNCDECL_SYS (strcasestr, char *,
|
|---|
| 617 | (const char *haystack, const char *needle)
|
|---|
| 618 | _GL_ATTRIBUTE_PURE
|
|---|
| 619 | _GL_ARG_NONNULL ((1, 2)));
|
|---|
| 620 | # endif
|
|---|
| 621 | /* On some systems, this function is defined as an overloaded function:
|
|---|
| 622 | extern "C++" { const char * strcasestr (const char *, const char *); }
|
|---|
| 623 | extern "C++" { char * strcasestr (char *, const char *); } */
|
|---|
| 624 | _GL_CXXALIAS_SYS_CAST2 (strcasestr,
|
|---|
| 625 | char *, (const char *haystack, const char *needle),
|
|---|
| 626 | const char *, (const char *haystack, const char *needle));
|
|---|
| 627 | # endif
|
|---|
| 628 | # if ((__GLIBC__ == 2 && __GLIBC_MINOR__ >= 10) && !defined __UCLIBC__) \
|
|---|
| 629 | && (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 4))
|
|---|
| 630 | _GL_CXXALIASWARN1 (strcasestr, char *, (char *haystack, const char *needle));
|
|---|
| 631 | _GL_CXXALIASWARN1 (strcasestr, const char *,
|
|---|
| 632 | (const char *haystack, const char *needle));
|
|---|
| 633 | # else
|
|---|
| 634 | _GL_CXXALIASWARN (strcasestr);
|
|---|
| 635 | # endif
|
|---|
| 636 | #elif defined GNULIB_POSIXCHECK
|
|---|
| 637 | /* strcasestr() does not work with multibyte strings:
|
|---|
| 638 | It is a glibc extension, and glibc implements it only for unibyte
|
|---|
| 639 | locales. */
|
|---|
| 640 | # undef strcasestr
|
|---|
| 641 | # if HAVE_RAW_DECL_STRCASESTR
|
|---|
| 642 | _GL_WARN_ON_USE (strcasestr, "strcasestr does work correctly on character "
|
|---|
| 643 | "strings in multibyte locales - "
|
|---|
| 644 | "use mbscasestr if you care about "
|
|---|
| 645 | "internationalization, or use c-strcasestr if you want "
|
|---|
| 646 | "a locale independent function");
|
|---|
| 647 | # endif
|
|---|
| 648 | #endif
|
|---|
| 649 |
|
|---|
| 650 | /* Parse S into tokens separated by characters in DELIM.
|
|---|
| 651 | If S is NULL, the saved pointer in SAVE_PTR is used as
|
|---|
| 652 | the next starting point. For example:
|
|---|
| 653 | char s[] = "-abc-=-def";
|
|---|
| 654 | char *sp;
|
|---|
| 655 | x = strtok_r(s, "-", &sp); // x = "abc", sp = "=-def"
|
|---|
| 656 | x = strtok_r(NULL, "-=", &sp); // x = "def", sp = NULL
|
|---|
| 657 | x = strtok_r(NULL, "=", &sp); // x = NULL
|
|---|
| 658 | // s = "abc\0-def\0"
|
|---|
| 659 |
|
|---|
| 660 | This is a variant of strtok() that is multithread-safe.
|
|---|
| 661 |
|
|---|
| 662 | For the POSIX documentation for this function, see:
|
|---|
| 663 | http://www.opengroup.org/susv3xsh/strtok.html
|
|---|
| 664 |
|
|---|
| 665 | Caveat: It modifies the original string.
|
|---|
| 666 | Caveat: These functions cannot be used on constant strings.
|
|---|
| 667 | Caveat: The identity of the delimiting character is lost.
|
|---|
| 668 | Caveat: It doesn't work with multibyte strings unless all of the delimiter
|
|---|
| 669 | characters are ASCII characters < 0x30.
|
|---|
| 670 |
|
|---|
| 671 | See also strsep(). */
|
|---|
| 672 | #if @GNULIB_STRTOK_R@
|
|---|
| 673 | # if @REPLACE_STRTOK_R@
|
|---|
| 674 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
|
|---|
| 675 | # undef strtok_r
|
|---|
| 676 | # define strtok_r rpl_strtok_r
|
|---|
| 677 | # endif
|
|---|
| 678 | _GL_FUNCDECL_RPL (strtok_r, char *,
|
|---|
| 679 | (char *restrict s, char const *restrict delim,
|
|---|
| 680 | char **restrict save_ptr)
|
|---|
| 681 | _GL_ARG_NONNULL ((2, 3)));
|
|---|
| 682 | _GL_CXXALIAS_RPL (strtok_r, char *,
|
|---|
| 683 | (char *restrict s, char const *restrict delim,
|
|---|
| 684 | char **restrict save_ptr));
|
|---|
| 685 | # else
|
|---|
| 686 | # if @UNDEFINE_STRTOK_R@ || defined GNULIB_POSIXCHECK
|
|---|
| 687 | # undef strtok_r
|
|---|
| 688 | # endif
|
|---|
| 689 | # if ! @HAVE_DECL_STRTOK_R@
|
|---|
| 690 | _GL_FUNCDECL_SYS (strtok_r, char *,
|
|---|
| 691 | (char *restrict s, char const *restrict delim,
|
|---|
| 692 | char **restrict save_ptr)
|
|---|
| 693 | _GL_ARG_NONNULL ((2, 3)));
|
|---|
| 694 | # endif
|
|---|
| 695 | _GL_CXXALIAS_SYS (strtok_r, char *,
|
|---|
| 696 | (char *restrict s, char const *restrict delim,
|
|---|
| 697 | char **restrict save_ptr));
|
|---|
| 698 | # endif
|
|---|
| 699 | _GL_CXXALIASWARN (strtok_r);
|
|---|
| 700 | # if defined GNULIB_POSIXCHECK
|
|---|
| 701 | _GL_WARN_ON_USE (strtok_r, "strtok_r cannot work correctly on character "
|
|---|
| 702 | "strings in multibyte locales - "
|
|---|
| 703 | "use mbstok_r if you care about internationalization");
|
|---|
| 704 | # endif
|
|---|
| 705 | #elif defined GNULIB_POSIXCHECK
|
|---|
| 706 | # undef strtok_r
|
|---|
| 707 | # if HAVE_RAW_DECL_STRTOK_R
|
|---|
| 708 | _GL_WARN_ON_USE (strtok_r, "strtok_r is unportable - "
|
|---|
| 709 | "use gnulib module strtok_r for portability");
|
|---|
| 710 | # endif
|
|---|
| 711 | #endif
|
|---|
| 712 |
|
|---|
| 713 |
|
|---|
| 714 | /* The following functions are not specified by POSIX. They are gnulib
|
|---|
| 715 | extensions. */
|
|---|
| 716 |
|
|---|
| 717 | #if @GNULIB_MBSLEN@
|
|---|
| 718 | /* Return the number of multibyte characters in the character string STRING.
|
|---|
| 719 | This considers multibyte characters, unlike strlen, which counts bytes. */
|
|---|
| 720 | # ifdef __MirBSD__ /* MirBSD defines mbslen as a macro. Override it. */
|
|---|
| 721 | # undef mbslen
|
|---|
| 722 | # endif
|
|---|
| 723 | # if @HAVE_MBSLEN@ /* AIX, OSF/1, MirBSD define mbslen already in libc. */
|
|---|
| 724 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
|
|---|
| 725 | # define mbslen rpl_mbslen
|
|---|
| 726 | # endif
|
|---|
| 727 | _GL_FUNCDECL_RPL (mbslen, size_t, (const char *string)
|
|---|
| 728 | _GL_ATTRIBUTE_PURE
|
|---|
| 729 | _GL_ARG_NONNULL ((1)));
|
|---|
| 730 | _GL_CXXALIAS_RPL (mbslen, size_t, (const char *string));
|
|---|
| 731 | # else
|
|---|
| 732 | _GL_FUNCDECL_SYS (mbslen, size_t, (const char *string)
|
|---|
| 733 | _GL_ATTRIBUTE_PURE
|
|---|
| 734 | _GL_ARG_NONNULL ((1)));
|
|---|
| 735 | _GL_CXXALIAS_SYS (mbslen, size_t, (const char *string));
|
|---|
| 736 | # endif
|
|---|
| 737 | _GL_CXXALIASWARN (mbslen);
|
|---|
| 738 | #endif
|
|---|
| 739 |
|
|---|
| 740 | #if @GNULIB_MBSNLEN@
|
|---|
| 741 | /* Return the number of multibyte characters in the character string starting
|
|---|
| 742 | at STRING and ending at STRING + LEN. */
|
|---|
| 743 | _GL_EXTERN_C size_t mbsnlen (const char *string, size_t len)
|
|---|
| 744 | _GL_ATTRIBUTE_PURE
|
|---|
| 745 | _GL_ARG_NONNULL ((1));
|
|---|
| 746 | #endif
|
|---|
| 747 |
|
|---|
| 748 | #if @GNULIB_MBSCHR@
|
|---|
| 749 | /* Locate the first single-byte character C in the character string STRING,
|
|---|
| 750 | and return a pointer to it. Return NULL if C is not found in STRING.
|
|---|
| 751 | Unlike strchr(), this function works correctly in multibyte locales with
|
|---|
| 752 | encodings such as GB18030. */
|
|---|
| 753 | # if defined __hpux
|
|---|
| 754 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
|
|---|
| 755 | # define mbschr rpl_mbschr /* avoid collision with HP-UX function */
|
|---|
| 756 | # endif
|
|---|
| 757 | _GL_FUNCDECL_RPL (mbschr, char *, (const char *string, int c)
|
|---|
| 758 | _GL_ATTRIBUTE_PURE
|
|---|
| 759 | _GL_ARG_NONNULL ((1)));
|
|---|
| 760 | _GL_CXXALIAS_RPL (mbschr, char *, (const char *string, int c));
|
|---|
| 761 | # else
|
|---|
| 762 | _GL_FUNCDECL_SYS (mbschr, char *, (const char *string, int c)
|
|---|
| 763 | _GL_ATTRIBUTE_PURE
|
|---|
| 764 | _GL_ARG_NONNULL ((1)));
|
|---|
| 765 | _GL_CXXALIAS_SYS (mbschr, char *, (const char *string, int c));
|
|---|
| 766 | # endif
|
|---|
| 767 | _GL_CXXALIASWARN (mbschr);
|
|---|
| 768 | #endif
|
|---|
| 769 |
|
|---|
| 770 | #if @GNULIB_MBSRCHR@
|
|---|
| 771 | /* Locate the last single-byte character C in the character string STRING,
|
|---|
| 772 | and return a pointer to it. Return NULL if C is not found in STRING.
|
|---|
| 773 | Unlike strrchr(), this function works correctly in multibyte locales with
|
|---|
| 774 | encodings such as GB18030. */
|
|---|
| 775 | # if defined __hpux || defined __INTERIX
|
|---|
| 776 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
|
|---|
| 777 | # define mbsrchr rpl_mbsrchr /* avoid collision with system function */
|
|---|
| 778 | # endif
|
|---|
| 779 | _GL_FUNCDECL_RPL (mbsrchr, char *, (const char *string, int c)
|
|---|
| 780 | _GL_ATTRIBUTE_PURE
|
|---|
| 781 | _GL_ARG_NONNULL ((1)));
|
|---|
| 782 | _GL_CXXALIAS_RPL (mbsrchr, char *, (const char *string, int c));
|
|---|
| 783 | # else
|
|---|
| 784 | _GL_FUNCDECL_SYS (mbsrchr, char *, (const char *string, int c)
|
|---|
| 785 | _GL_ATTRIBUTE_PURE
|
|---|
| 786 | _GL_ARG_NONNULL ((1)));
|
|---|
| 787 | _GL_CXXALIAS_SYS (mbsrchr, char *, (const char *string, int c));
|
|---|
| 788 | # endif
|
|---|
| 789 | _GL_CXXALIASWARN (mbsrchr);
|
|---|
| 790 | #endif
|
|---|
| 791 |
|
|---|
| 792 | #if @GNULIB_MBSSTR@
|
|---|
| 793 | /* Find the first occurrence of the character string NEEDLE in the character
|
|---|
| 794 | string HAYSTACK. Return NULL if NEEDLE is not found in HAYSTACK.
|
|---|
| 795 | Unlike strstr(), this function works correctly in multibyte locales with
|
|---|
| 796 | encodings different from UTF-8. */
|
|---|
| 797 | _GL_EXTERN_C char * mbsstr (const char *haystack, const char *needle)
|
|---|
| 798 | _GL_ATTRIBUTE_PURE
|
|---|
| 799 | _GL_ARG_NONNULL ((1, 2));
|
|---|
| 800 | #endif
|
|---|
| 801 |
|
|---|
| 802 | #if @GNULIB_MBSCASECMP@
|
|---|
| 803 | /* Compare the character strings S1 and S2, ignoring case, returning less than,
|
|---|
| 804 | equal to or greater than zero if S1 is lexicographically less than, equal to
|
|---|
| 805 | or greater than S2.
|
|---|
| 806 | Note: This function may, in multibyte locales, return 0 for strings of
|
|---|
| 807 | different lengths!
|
|---|
| 808 | Unlike strcasecmp(), this function works correctly in multibyte locales. */
|
|---|
| 809 | _GL_EXTERN_C int mbscasecmp (const char *s1, const char *s2)
|
|---|
| 810 | _GL_ATTRIBUTE_PURE
|
|---|
| 811 | _GL_ARG_NONNULL ((1, 2));
|
|---|
| 812 | #endif
|
|---|
| 813 |
|
|---|
| 814 | #if @GNULIB_MBSNCASECMP@
|
|---|
| 815 | /* Compare the initial segment of the character string S1 consisting of at most
|
|---|
| 816 | N characters with the initial segment of the character string S2 consisting
|
|---|
| 817 | of at most N characters, ignoring case, returning less than, equal to or
|
|---|
| 818 | greater than zero if the initial segment of S1 is lexicographically less
|
|---|
| 819 | than, equal to or greater than the initial segment of S2.
|
|---|
| 820 | Note: This function may, in multibyte locales, return 0 for initial segments
|
|---|
| 821 | of different lengths!
|
|---|
| 822 | Unlike strncasecmp(), this function works correctly in multibyte locales.
|
|---|
| 823 | But beware that N is not a byte count but a character count! */
|
|---|
| 824 | _GL_EXTERN_C int mbsncasecmp (const char *s1, const char *s2, size_t n)
|
|---|
| 825 | _GL_ATTRIBUTE_PURE
|
|---|
| 826 | _GL_ARG_NONNULL ((1, 2));
|
|---|
| 827 | #endif
|
|---|
| 828 |
|
|---|
| 829 | #if @GNULIB_MBSPCASECMP@
|
|---|
| 830 | /* Compare the initial segment of the character string STRING consisting of
|
|---|
| 831 | at most mbslen (PREFIX) characters with the character string PREFIX,
|
|---|
| 832 | ignoring case. If the two match, return a pointer to the first byte
|
|---|
| 833 | after this prefix in STRING. Otherwise, return NULL.
|
|---|
| 834 | Note: This function may, in multibyte locales, return non-NULL if STRING
|
|---|
| 835 | is of smaller length than PREFIX!
|
|---|
| 836 | Unlike strncasecmp(), this function works correctly in multibyte
|
|---|
| 837 | locales. */
|
|---|
| 838 | _GL_EXTERN_C char * mbspcasecmp (const char *string, const char *prefix)
|
|---|
| 839 | _GL_ATTRIBUTE_PURE
|
|---|
| 840 | _GL_ARG_NONNULL ((1, 2));
|
|---|
| 841 | #endif
|
|---|
| 842 |
|
|---|
| 843 | #if @GNULIB_MBSCASESTR@
|
|---|
| 844 | /* Find the first occurrence of the character string NEEDLE in the character
|
|---|
| 845 | string HAYSTACK, using case-insensitive comparison.
|
|---|
| 846 | Note: This function may, in multibyte locales, return success even if
|
|---|
| 847 | strlen (haystack) < strlen (needle) !
|
|---|
| 848 | Unlike strcasestr(), this function works correctly in multibyte locales. */
|
|---|
| 849 | _GL_EXTERN_C char * mbscasestr (const char *haystack, const char *needle)
|
|---|
| 850 | _GL_ATTRIBUTE_PURE
|
|---|
| 851 | _GL_ARG_NONNULL ((1, 2));
|
|---|
| 852 | #endif
|
|---|
| 853 |
|
|---|
| 854 | #if @GNULIB_MBSCSPN@
|
|---|
| 855 | /* Find the first occurrence in the character string STRING of any character
|
|---|
| 856 | in the character string ACCEPT. Return the number of bytes from the
|
|---|
| 857 | beginning of the string to this occurrence, or to the end of the string
|
|---|
| 858 | if none exists.
|
|---|
| 859 | Unlike strcspn(), this function works correctly in multibyte locales. */
|
|---|
| 860 | _GL_EXTERN_C size_t mbscspn (const char *string, const char *accept)
|
|---|
| 861 | _GL_ATTRIBUTE_PURE
|
|---|
| 862 | _GL_ARG_NONNULL ((1, 2));
|
|---|
| 863 | #endif
|
|---|
| 864 |
|
|---|
| 865 | #if @GNULIB_MBSPBRK@
|
|---|
| 866 | /* Find the first occurrence in the character string STRING of any character
|
|---|
| 867 | in the character string ACCEPT. Return the pointer to it, or NULL if none
|
|---|
| 868 | exists.
|
|---|
| 869 | Unlike strpbrk(), this function works correctly in multibyte locales. */
|
|---|
| 870 | # if defined __hpux
|
|---|
| 871 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
|
|---|
| 872 | # define mbspbrk rpl_mbspbrk /* avoid collision with HP-UX function */
|
|---|
| 873 | # endif
|
|---|
| 874 | _GL_FUNCDECL_RPL (mbspbrk, char *, (const char *string, const char *accept)
|
|---|
| 875 | _GL_ATTRIBUTE_PURE
|
|---|
| 876 | _GL_ARG_NONNULL ((1, 2)));
|
|---|
| 877 | _GL_CXXALIAS_RPL (mbspbrk, char *, (const char *string, const char *accept));
|
|---|
| 878 | # else
|
|---|
| 879 | _GL_FUNCDECL_SYS (mbspbrk, char *, (const char *string, const char *accept)
|
|---|
| 880 | _GL_ATTRIBUTE_PURE
|
|---|
| 881 | _GL_ARG_NONNULL ((1, 2)));
|
|---|
| 882 | _GL_CXXALIAS_SYS (mbspbrk, char *, (const char *string, const char *accept));
|
|---|
| 883 | # endif
|
|---|
| 884 | _GL_CXXALIASWARN (mbspbrk);
|
|---|
| 885 | #endif
|
|---|
| 886 |
|
|---|
| 887 | #if @GNULIB_MBSSPN@
|
|---|
| 888 | /* Find the first occurrence in the character string STRING of any character
|
|---|
| 889 | not in the character string REJECT. Return the number of bytes from the
|
|---|
| 890 | beginning of the string to this occurrence, or to the end of the string
|
|---|
| 891 | if none exists.
|
|---|
| 892 | Unlike strspn(), this function works correctly in multibyte locales. */
|
|---|
| 893 | _GL_EXTERN_C size_t mbsspn (const char *string, const char *reject)
|
|---|
| 894 | _GL_ATTRIBUTE_PURE
|
|---|
| 895 | _GL_ARG_NONNULL ((1, 2));
|
|---|
| 896 | #endif
|
|---|
| 897 |
|
|---|
| 898 | #if @GNULIB_MBSSEP@
|
|---|
| 899 | /* Search the next delimiter (multibyte character listed in the character
|
|---|
| 900 | string DELIM) starting at the character string *STRINGP.
|
|---|
| 901 | If one is found, overwrite it with a NUL, and advance *STRINGP to point
|
|---|
| 902 | to the next multibyte character after it. Otherwise, set *STRINGP to NULL.
|
|---|
| 903 | If *STRINGP was already NULL, nothing happens.
|
|---|
| 904 | Return the old value of *STRINGP.
|
|---|
| 905 |
|
|---|
| 906 | This is a variant of mbstok_r() that supports empty fields.
|
|---|
| 907 |
|
|---|
| 908 | Caveat: It modifies the original string.
|
|---|
| 909 | Caveat: These functions cannot be used on constant strings.
|
|---|
| 910 | Caveat: The identity of the delimiting character is lost.
|
|---|
| 911 |
|
|---|
| 912 | See also mbstok_r(). */
|
|---|
| 913 | _GL_EXTERN_C char * mbssep (char **stringp, const char *delim)
|
|---|
| 914 | _GL_ARG_NONNULL ((1, 2));
|
|---|
| 915 | #endif
|
|---|
| 916 |
|
|---|
| 917 | #if @GNULIB_MBSTOK_R@
|
|---|
| 918 | /* Parse the character string STRING into tokens separated by characters in
|
|---|
| 919 | the character string DELIM.
|
|---|
| 920 | If STRING is NULL, the saved pointer in SAVE_PTR is used as
|
|---|
| 921 | the next starting point. For example:
|
|---|
| 922 | char s[] = "-abc-=-def";
|
|---|
| 923 | char *sp;
|
|---|
| 924 | x = mbstok_r(s, "-", &sp); // x = "abc", sp = "=-def"
|
|---|
| 925 | x = mbstok_r(NULL, "-=", &sp); // x = "def", sp = NULL
|
|---|
| 926 | x = mbstok_r(NULL, "=", &sp); // x = NULL
|
|---|
| 927 | // s = "abc\0-def\0"
|
|---|
| 928 |
|
|---|
| 929 | Caveat: It modifies the original string.
|
|---|
| 930 | Caveat: These functions cannot be used on constant strings.
|
|---|
| 931 | Caveat: The identity of the delimiting character is lost.
|
|---|
| 932 |
|
|---|
| 933 | See also mbssep(). */
|
|---|
| 934 | _GL_EXTERN_C char * mbstok_r (char *string, const char *delim, char **save_ptr)
|
|---|
| 935 | _GL_ARG_NONNULL ((2, 3));
|
|---|
| 936 | #endif
|
|---|
| 937 |
|
|---|
| 938 | /* Map any int, typically from errno, into an error message. */
|
|---|
| 939 | #if @GNULIB_STRERROR@
|
|---|
| 940 | # if @REPLACE_STRERROR@
|
|---|
| 941 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
|
|---|
| 942 | # undef strerror
|
|---|
| 943 | # define strerror rpl_strerror
|
|---|
| 944 | # endif
|
|---|
| 945 | _GL_FUNCDECL_RPL (strerror, char *, (int));
|
|---|
| 946 | _GL_CXXALIAS_RPL (strerror, char *, (int));
|
|---|
| 947 | # else
|
|---|
| 948 | _GL_CXXALIAS_SYS (strerror, char *, (int));
|
|---|
| 949 | # endif
|
|---|
| 950 | _GL_CXXALIASWARN (strerror);
|
|---|
| 951 | #elif defined GNULIB_POSIXCHECK
|
|---|
| 952 | # undef strerror
|
|---|
| 953 | /* Assume strerror is always declared. */
|
|---|
| 954 | _GL_WARN_ON_USE (strerror, "strerror is unportable - "
|
|---|
| 955 | "use gnulib module strerror to guarantee non-NULL result");
|
|---|
| 956 | #endif
|
|---|
| 957 |
|
|---|
| 958 | /* Map any int, typically from errno, into an error message. Multithread-safe.
|
|---|
| 959 | Uses the POSIX declaration, not the glibc declaration. */
|
|---|
| 960 | #if @GNULIB_STRERROR_R@
|
|---|
| 961 | # if @REPLACE_STRERROR_R@
|
|---|
| 962 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
|
|---|
| 963 | # undef strerror_r
|
|---|
| 964 | # define strerror_r rpl_strerror_r
|
|---|
| 965 | # endif
|
|---|
| 966 | _GL_FUNCDECL_RPL (strerror_r, int, (int errnum, char *buf, size_t buflen)
|
|---|
| 967 | _GL_ARG_NONNULL ((2)));
|
|---|
| 968 | _GL_CXXALIAS_RPL (strerror_r, int, (int errnum, char *buf, size_t buflen));
|
|---|
| 969 | # else
|
|---|
| 970 | # if !@HAVE_DECL_STRERROR_R@
|
|---|
| 971 | _GL_FUNCDECL_SYS (strerror_r, int, (int errnum, char *buf, size_t buflen)
|
|---|
| 972 | _GL_ARG_NONNULL ((2)));
|
|---|
| 973 | # endif
|
|---|
| 974 | _GL_CXXALIAS_SYS (strerror_r, int, (int errnum, char *buf, size_t buflen));
|
|---|
| 975 | # endif
|
|---|
| 976 | # if @HAVE_DECL_STRERROR_R@
|
|---|
| 977 | _GL_CXXALIASWARN (strerror_r);
|
|---|
| 978 | # endif
|
|---|
| 979 | #elif defined GNULIB_POSIXCHECK
|
|---|
| 980 | # undef strerror_r
|
|---|
| 981 | # if HAVE_RAW_DECL_STRERROR_R
|
|---|
| 982 | _GL_WARN_ON_USE (strerror_r, "strerror_r is unportable - "
|
|---|
| 983 | "use gnulib module strerror_r-posix for portability");
|
|---|
| 984 | # endif
|
|---|
| 985 | #endif
|
|---|
| 986 |
|
|---|
| 987 | #if @GNULIB_STRSIGNAL@
|
|---|
| 988 | # if @REPLACE_STRSIGNAL@
|
|---|
| 989 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
|
|---|
| 990 | # define strsignal rpl_strsignal
|
|---|
| 991 | # endif
|
|---|
| 992 | _GL_FUNCDECL_RPL (strsignal, char *, (int __sig));
|
|---|
| 993 | _GL_CXXALIAS_RPL (strsignal, char *, (int __sig));
|
|---|
| 994 | # else
|
|---|
| 995 | # if ! @HAVE_DECL_STRSIGNAL@
|
|---|
| 996 | _GL_FUNCDECL_SYS (strsignal, char *, (int __sig));
|
|---|
| 997 | # endif
|
|---|
| 998 | /* Need to cast, because on Cygwin 1.5.x systems, the return type is
|
|---|
| 999 | 'const char *'. */
|
|---|
| 1000 | _GL_CXXALIAS_SYS_CAST (strsignal, char *, (int __sig));
|
|---|
| 1001 | # endif
|
|---|
| 1002 | _GL_CXXALIASWARN (strsignal);
|
|---|
| 1003 | #elif defined GNULIB_POSIXCHECK
|
|---|
| 1004 | # undef strsignal
|
|---|
| 1005 | # if HAVE_RAW_DECL_STRSIGNAL
|
|---|
| 1006 | _GL_WARN_ON_USE (strsignal, "strsignal is unportable - "
|
|---|
| 1007 | "use gnulib module strsignal for portability");
|
|---|
| 1008 | # endif
|
|---|
| 1009 | #endif
|
|---|
| 1010 |
|
|---|
| 1011 | #if @GNULIB_STRVERSCMP@
|
|---|
| 1012 | # if !@HAVE_STRVERSCMP@
|
|---|
| 1013 | _GL_FUNCDECL_SYS (strverscmp, int, (const char *, const char *)
|
|---|
| 1014 | _GL_ATTRIBUTE_PURE
|
|---|
| 1015 | _GL_ARG_NONNULL ((1, 2)));
|
|---|
| 1016 | # endif
|
|---|
| 1017 | _GL_CXXALIAS_SYS (strverscmp, int, (const char *, const char *));
|
|---|
| 1018 | _GL_CXXALIASWARN (strverscmp);
|
|---|
| 1019 | #elif defined GNULIB_POSIXCHECK
|
|---|
| 1020 | # undef strverscmp
|
|---|
| 1021 | # if HAVE_RAW_DECL_STRVERSCMP
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| 1022 | _GL_WARN_ON_USE (strverscmp, "strverscmp is unportable - "
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| 1023 | "use gnulib module strverscmp for portability");
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| 1024 | # endif
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| 1025 | #endif
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| 1026 |
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| 1027 |
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| 1028 | #endif /* _@GUARD_PREFIX@_STRING_H */
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| 1029 | #endif /* _@GUARD_PREFIX@_STRING_H */
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