1072 lines
41 KiB
C
1072 lines
41 KiB
C
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/* A GNU-like <string.h>.
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Copyright (C) 1995-1996, 2001-2020 Free Software Foundation, Inc.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3, or (at your option)
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any later version.
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This program 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
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, see <https://www.gnu.org/licenses/>. */
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#if __GNUC__ >= 3
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@PRAGMA_SYSTEM_HEADER@
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#endif
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@PRAGMA_COLUMNS@
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#if defined _GL_ALREADY_INCLUDING_STRING_H
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/* Special invocation convention:
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- On OS X/NetBSD we have a sequence of nested includes
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<string.h> -> <strings.h> -> "string.h"
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In this situation system _chk variants due to -D_FORTIFY_SOURCE
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might be used after any replacements defined here. */
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#@INCLUDE_NEXT@ @NEXT_STRING_H@
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#else
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/* Normal invocation convention. */
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#ifndef _@GUARD_PREFIX@_STRING_H
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#define _GL_ALREADY_INCLUDING_STRING_H
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/* The include_next requires a split double-inclusion guard. */
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#@INCLUDE_NEXT@ @NEXT_STRING_H@
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#undef _GL_ALREADY_INCLUDING_STRING_H
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#ifndef _@GUARD_PREFIX@_STRING_H
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#define _@GUARD_PREFIX@_STRING_H
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/* NetBSD 5.0 mis-defines NULL. */
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#include <stddef.h>
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/* MirBSD defines mbslen as a macro. */
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#if @GNULIB_MBSLEN@ && defined __MirBSD__
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# include <wchar.h>
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#endif
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/* The __attribute__ feature is available in gcc versions 2.5 and later.
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The attribute __pure__ was added in gcc 2.96. */
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#if __GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 96)
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# define _GL_ATTRIBUTE_PURE __attribute__ ((__pure__))
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#else
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# define _GL_ATTRIBUTE_PURE /* empty */
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#endif
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/* NetBSD 5.0 declares strsignal in <unistd.h>, not in <string.h>. */
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/* But in any case avoid namespace pollution on glibc systems. */
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#if (@GNULIB_STRSIGNAL@ || defined GNULIB_POSIXCHECK) && defined __NetBSD__ \
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&& ! defined __GLIBC__
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# include <unistd.h>
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#endif
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/* The definitions of _GL_FUNCDECL_RPL etc. are copied here. */
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/* The definition of _GL_ARG_NONNULL is copied here. */
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/* The definition of _GL_WARN_ON_USE is copied here. */
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/* Clear a block of memory. The compiler will not delete a call to
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this function, even if the block is dead after the call. */
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#if @GNULIB_EXPLICIT_BZERO@
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# if ! @HAVE_EXPLICIT_BZERO@
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_GL_FUNCDECL_SYS (explicit_bzero, void,
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(void *__dest, size_t __n) _GL_ARG_NONNULL ((1)));
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# endif
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_GL_CXXALIAS_SYS (explicit_bzero, void, (void *__dest, size_t __n));
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_GL_CXXALIASWARN (explicit_bzero);
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#elif defined GNULIB_POSIXCHECK
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# undef explicit_bzero
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# if HAVE_RAW_DECL_EXPLICIT_BZERO
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_GL_WARN_ON_USE (explicit_bzero, "explicit_bzero is unportable - "
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"use gnulib module explicit_bzero for portability");
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# endif
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#endif
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/* Find the index of the least-significant set bit. */
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#if @GNULIB_FFSL@
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# if !@HAVE_FFSL@
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_GL_FUNCDECL_SYS (ffsl, int, (long int i));
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# endif
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_GL_CXXALIAS_SYS (ffsl, int, (long int i));
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_GL_CXXALIASWARN (ffsl);
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#elif defined GNULIB_POSIXCHECK
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# undef ffsl
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# if HAVE_RAW_DECL_FFSL
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_GL_WARN_ON_USE (ffsl, "ffsl is not portable - use the ffsl module");
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# endif
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#endif
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/* Find the index of the least-significant set bit. */
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#if @GNULIB_FFSLL@
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# if !@HAVE_FFSLL@
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_GL_FUNCDECL_SYS (ffsll, int, (long long int i));
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# endif
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_GL_CXXALIAS_SYS (ffsll, int, (long long int i));
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_GL_CXXALIASWARN (ffsll);
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#elif defined GNULIB_POSIXCHECK
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# undef ffsll
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# if HAVE_RAW_DECL_FFSLL
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_GL_WARN_ON_USE (ffsll, "ffsll is not portable - use the ffsll module");
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# endif
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#endif
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/* Return the first instance of C within N bytes of S, or NULL. */
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#if @GNULIB_MEMCHR@
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# if @REPLACE_MEMCHR@
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# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
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# define memchr rpl_memchr
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# endif
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_GL_FUNCDECL_RPL (memchr, void *, (void const *__s, int __c, size_t __n)
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_GL_ATTRIBUTE_PURE
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_GL_ARG_NONNULL ((1)));
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_GL_CXXALIAS_RPL (memchr, void *, (void const *__s, int __c, size_t __n));
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# else
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# if ! @HAVE_MEMCHR@
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_GL_FUNCDECL_SYS (memchr, void *, (void const *__s, int __c, size_t __n)
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_GL_ATTRIBUTE_PURE
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_GL_ARG_NONNULL ((1)));
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# endif
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/* On some systems, this function is defined as an overloaded function:
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extern "C" { const void * std::memchr (const void *, int, size_t); }
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extern "C++" { void * std::memchr (void *, int, size_t); } */
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_GL_CXXALIAS_SYS_CAST2 (memchr,
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void *, (void const *__s, int __c, size_t __n),
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void const *, (void const *__s, int __c, size_t __n));
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# endif
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# if ((__GLIBC__ == 2 && __GLIBC_MINOR__ >= 10) && !defined __UCLIBC__) \
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&& (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 4))
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_GL_CXXALIASWARN1 (memchr, void *, (void *__s, int __c, size_t __n));
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_GL_CXXALIASWARN1 (memchr, void const *,
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(void const *__s, int __c, size_t __n));
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# elif __GLIBC__ >= 2
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_GL_CXXALIASWARN (memchr);
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# endif
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#elif defined GNULIB_POSIXCHECK
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# undef memchr
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/* Assume memchr is always declared. */
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_GL_WARN_ON_USE (memchr, "memchr has platform-specific bugs - "
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"use gnulib module memchr for portability" );
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#endif
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/* Return the first occurrence of NEEDLE in HAYSTACK. */
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#if @GNULIB_MEMMEM@
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# if @REPLACE_MEMMEM@
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# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
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# define memmem rpl_memmem
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# endif
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_GL_FUNCDECL_RPL (memmem, void *,
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(void const *__haystack, size_t __haystack_len,
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void const *__needle, size_t __needle_len)
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_GL_ATTRIBUTE_PURE
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_GL_ARG_NONNULL ((1, 3)));
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_GL_CXXALIAS_RPL (memmem, void *,
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(void const *__haystack, size_t __haystack_len,
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void const *__needle, size_t __needle_len));
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# else
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# if ! @HAVE_DECL_MEMMEM@
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_GL_FUNCDECL_SYS (memmem, void *,
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(void const *__haystack, size_t __haystack_len,
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void const *__needle, size_t __needle_len)
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_GL_ATTRIBUTE_PURE
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_GL_ARG_NONNULL ((1, 3)));
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# endif
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_GL_CXXALIAS_SYS (memmem, void *,
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(void const *__haystack, size_t __haystack_len,
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void const *__needle, size_t __needle_len));
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# endif
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_GL_CXXALIASWARN (memmem);
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#elif defined GNULIB_POSIXCHECK
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# undef memmem
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# if HAVE_RAW_DECL_MEMMEM
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_GL_WARN_ON_USE (memmem, "memmem is unportable and often quadratic - "
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"use gnulib module memmem-simple for portability, "
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"and module memmem for speed" );
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# endif
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#endif
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/* Copy N bytes of SRC to DEST, return pointer to bytes after the
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last written byte. */
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#if @GNULIB_MEMPCPY@
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# if ! @HAVE_MEMPCPY@
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_GL_FUNCDECL_SYS (mempcpy, void *,
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(void *restrict __dest, void const *restrict __src,
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size_t __n)
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_GL_ARG_NONNULL ((1, 2)));
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# endif
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_GL_CXXALIAS_SYS (mempcpy, void *,
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(void *restrict __dest, void const *restrict __src,
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size_t __n));
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_GL_CXXALIASWARN (mempcpy);
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#elif defined GNULIB_POSIXCHECK
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# undef mempcpy
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# if HAVE_RAW_DECL_MEMPCPY
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_GL_WARN_ON_USE (mempcpy, "mempcpy is unportable - "
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"use gnulib module mempcpy for portability");
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# endif
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#endif
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/* Search backwards through a block for a byte (specified as an int). */
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#if @GNULIB_MEMRCHR@
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# if ! @HAVE_DECL_MEMRCHR@
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_GL_FUNCDECL_SYS (memrchr, void *, (void const *, int, size_t)
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_GL_ATTRIBUTE_PURE
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_GL_ARG_NONNULL ((1)));
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# endif
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/* On some systems, this function is defined as an overloaded function:
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extern "C++" { const void * std::memrchr (const void *, int, size_t); }
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extern "C++" { void * std::memrchr (void *, int, size_t); } */
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_GL_CXXALIAS_SYS_CAST2 (memrchr,
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void *, (void const *, int, size_t),
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void const *, (void const *, int, size_t));
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# if ((__GLIBC__ == 2 && __GLIBC_MINOR__ >= 10) && !defined __UCLIBC__) \
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&& (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 4))
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_GL_CXXALIASWARN1 (memrchr, void *, (void *, int, size_t));
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_GL_CXXALIASWARN1 (memrchr, void const *, (void const *, int, size_t));
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# else
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_GL_CXXALIASWARN (memrchr);
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# endif
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#elif defined GNULIB_POSIXCHECK
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# undef memrchr
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# if HAVE_RAW_DECL_MEMRCHR
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_GL_WARN_ON_USE (memrchr, "memrchr is unportable - "
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"use gnulib module memrchr for portability");
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# endif
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#endif
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/* Find the first occurrence of C in S. More efficient than
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memchr(S,C,N), at the expense of undefined behavior if C does not
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occur within N bytes. */
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#if @GNULIB_RAWMEMCHR@
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# if ! @HAVE_RAWMEMCHR@
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_GL_FUNCDECL_SYS (rawmemchr, void *, (void const *__s, int __c_in)
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_GL_ATTRIBUTE_PURE
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_GL_ARG_NONNULL ((1)));
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# endif
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/* On some systems, this function is defined as an overloaded function:
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extern "C++" { const void * std::rawmemchr (const void *, int); }
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extern "C++" { void * std::rawmemchr (void *, int); } */
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_GL_CXXALIAS_SYS_CAST2 (rawmemchr,
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void *, (void const *__s, int __c_in),
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void const *, (void const *__s, int __c_in));
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# if ((__GLIBC__ == 2 && __GLIBC_MINOR__ >= 10) && !defined __UCLIBC__) \
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&& (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 4))
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_GL_CXXALIASWARN1 (rawmemchr, void *, (void *__s, int __c_in));
|
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_GL_CXXALIASWARN1 (rawmemchr, void const *, (void const *__s, int __c_in));
|
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# else
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_GL_CXXALIASWARN (rawmemchr);
|
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|
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# endif
|
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#elif defined GNULIB_POSIXCHECK
|
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|
|
# undef rawmemchr
|
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|
|
# if HAVE_RAW_DECL_RAWMEMCHR
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_GL_WARN_ON_USE (rawmemchr, "rawmemchr is unportable - "
|
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"use gnulib module rawmemchr for portability");
|
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|
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# endif
|
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#endif
|
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|
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/* Copy SRC to DST, returning the address of the terminating '\0' in DST. */
|
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|
#if @GNULIB_STPCPY@
|
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# if ! @HAVE_STPCPY@
|
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_GL_FUNCDECL_SYS (stpcpy, char *,
|
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|
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(char *restrict __dst, char const *restrict __src)
|
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|
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_GL_ARG_NONNULL ((1, 2)));
|
||
|
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# endif
|
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|
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_GL_CXXALIAS_SYS (stpcpy, char *,
|
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|
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(char *restrict __dst, char const *restrict __src));
|
||
|
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_GL_CXXALIASWARN (stpcpy);
|
||
|
|
#elif defined GNULIB_POSIXCHECK
|
||
|
|
# undef stpcpy
|
||
|
|
# if HAVE_RAW_DECL_STPCPY
|
||
|
|
_GL_WARN_ON_USE (stpcpy, "stpcpy is unportable - "
|
||
|
|
"use gnulib module stpcpy for portability");
|
||
|
|
# endif
|
||
|
|
#endif
|
||
|
|
|
||
|
|
/* Copy no more than N bytes of SRC to DST, returning a pointer past the
|
||
|
|
last non-NUL byte written into DST. */
|
||
|
|
#if @GNULIB_STPNCPY@
|
||
|
|
# if @REPLACE_STPNCPY@
|
||
|
|
# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
|
||
|
|
# undef stpncpy
|
||
|
|
# define stpncpy rpl_stpncpy
|
||
|
|
# endif
|
||
|
|
_GL_FUNCDECL_RPL (stpncpy, char *,
|
||
|
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(char *restrict __dst, char const *restrict __src,
|
||
|
|
size_t __n)
|
||
|
|
_GL_ARG_NONNULL ((1, 2)));
|
||
|
|
_GL_CXXALIAS_RPL (stpncpy, char *,
|
||
|
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(char *restrict __dst, char const *restrict __src,
|
||
|
|
size_t __n));
|
||
|
|
# else
|
||
|
|
# if ! @HAVE_STPNCPY@
|
||
|
|
_GL_FUNCDECL_SYS (stpncpy, char *,
|
||
|
|
(char *restrict __dst, char const *restrict __src,
|
||
|
|
size_t __n)
|
||
|
|
_GL_ARG_NONNULL ((1, 2)));
|
||
|
|
# endif
|
||
|
|
_GL_CXXALIAS_SYS (stpncpy, char *,
|
||
|
|
(char *restrict __dst, char const *restrict __src,
|
||
|
|
size_t __n));
|
||
|
|
# endif
|
||
|
|
_GL_CXXALIASWARN (stpncpy);
|
||
|
|
#elif defined GNULIB_POSIXCHECK
|
||
|
|
# undef stpncpy
|
||
|
|
# if HAVE_RAW_DECL_STPNCPY
|
||
|
|
_GL_WARN_ON_USE (stpncpy, "stpncpy is unportable - "
|
||
|
|
"use gnulib module stpncpy for portability");
|
||
|
|
# endif
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#if defined GNULIB_POSIXCHECK
|
||
|
|
/* strchr() does not work with multibyte strings if the locale encoding is
|
||
|
|
GB18030 and the character to be searched is a digit. */
|
||
|
|
# undef strchr
|
||
|
|
/* Assume strchr is always declared. */
|
||
|
|
_GL_WARN_ON_USE (strchr, "strchr cannot work correctly on character strings "
|
||
|
|
"in some multibyte locales - "
|
||
|
|
"use mbschr if you care about internationalization");
|
||
|
|
#endif
|
||
|
|
|
||
|
|
/* Find the first occurrence of C in S or the final NUL byte. */
|
||
|
|
#if @GNULIB_STRCHRNUL@
|
||
|
|
# if @REPLACE_STRCHRNUL@
|
||
|
|
# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
|
||
|
|
# define strchrnul rpl_strchrnul
|
||
|
|
# endif
|
||
|
|
_GL_FUNCDECL_RPL (strchrnul, char *, (const char *__s, int __c_in)
|
||
|
|
_GL_ATTRIBUTE_PURE
|
||
|
|
_GL_ARG_NONNULL ((1)));
|
||
|
|
_GL_CXXALIAS_RPL (strchrnul, char *,
|
||
|
|
(const char *str, int ch));
|
||
|
|
# else
|
||
|
|
# if ! @HAVE_STRCHRNUL@
|
||
|
|
_GL_FUNCDECL_SYS (strchrnul, char *, (char const *__s, int __c_in)
|
||
|
|
_GL_ATTRIBUTE_PURE
|
||
|
|
_GL_ARG_NONNULL ((1)));
|
||
|
|
# endif
|
||
|
|
/* On some systems, this function is defined as an overloaded function:
|
||
|
|
extern "C++" { const char * std::strchrnul (const char *, int); }
|
||
|
|
extern "C++" { char * std::strchrnul (char *, int); } */
|
||
|
|
_GL_CXXALIAS_SYS_CAST2 (strchrnul,
|
||
|
|
char *, (char const *__s, int __c_in),
|
||
|
|
char const *, (char const *__s, int __c_in));
|
||
|
|
# endif
|
||
|
|
# if ((__GLIBC__ == 2 && __GLIBC_MINOR__ >= 10) && !defined __UCLIBC__) \
|
||
|
|
&& (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 4))
|
||
|
|
_GL_CXXALIASWARN1 (strchrnul, char *, (char *__s, int __c_in));
|
||
|
|
_GL_CXXALIASWARN1 (strchrnul, char const *, (char const *__s, int __c_in));
|
||
|
|
# else
|
||
|
|
_GL_CXXALIASWARN (strchrnul);
|
||
|
|
# endif
|
||
|
|
#elif defined GNULIB_POSIXCHECK
|
||
|
|
# undef strchrnul
|
||
|
|
# if HAVE_RAW_DECL_STRCHRNUL
|
||
|
|
_GL_WARN_ON_USE (strchrnul, "strchrnul is unportable - "
|
||
|
|
"use gnulib module strchrnul for portability");
|
||
|
|
# endif
|
||
|
|
#endif
|
||
|
|
|
||
|
|
/* Duplicate S, returning an identical malloc'd string. */
|
||
|
|
#if @GNULIB_STRDUP@
|
||
|
|
# if @REPLACE_STRDUP@
|
||
|
|
# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
|
||
|
|
# undef strdup
|
||
|
|
# define strdup rpl_strdup
|
||
|
|
# endif
|
||
|
|
_GL_FUNCDECL_RPL (strdup, char *, (char const *__s) _GL_ARG_NONNULL ((1)));
|
||
|
|
_GL_CXXALIAS_RPL (strdup, char *, (char const *__s));
|
||
|
|
# else
|
||
|
|
# if defined __cplusplus && defined GNULIB_NAMESPACE && defined strdup
|
||
|
|
/* strdup exists as a function and as a macro. Get rid of the macro. */
|
||
|
|
# undef strdup
|
||
|
|
# endif
|
||
|
|
# if !(@HAVE_DECL_STRDUP@ || defined strdup)
|
||
|
|
_GL_FUNCDECL_SYS (strdup, char *, (char const *__s) _GL_ARG_NONNULL ((1)));
|
||
|
|
# endif
|
||
|
|
_GL_CXXALIAS_SYS (strdup, char *, (char const *__s));
|
||
|
|
# endif
|
||
|
|
_GL_CXXALIASWARN (strdup);
|
||
|
|
#elif defined GNULIB_POSIXCHECK
|
||
|
|
# undef strdup
|
||
|
|
# if HAVE_RAW_DECL_STRDUP
|
||
|
|
_GL_WARN_ON_USE (strdup, "strdup is unportable - "
|
||
|
|
"use gnulib module strdup for portability");
|
||
|
|
# endif
|
||
|
|
#endif
|
||
|
|
|
||
|
|
/* Append no more than N characters from SRC onto DEST. */
|
||
|
|
#if @GNULIB_STRNCAT@
|
||
|
|
# if @REPLACE_STRNCAT@
|
||
|
|
# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
|
||
|
|
# undef strncat
|
||
|
|
# define strncat rpl_strncat
|
||
|
|
# endif
|
||
|
|
_GL_FUNCDECL_RPL (strncat, char *,
|
||
|
|
(char *restrict dest, const char *restrict src, size_t n)
|
||
|
|
_GL_ARG_NONNULL ((1, 2)));
|
||
|
|
_GL_CXXALIAS_RPL (strncat, char *,
|
||
|
|
(char *restrict dest, const char *restrict src, size_t n));
|
||
|
|
# else
|
||
|
|
_GL_CXXALIAS_SYS (strncat, char *,
|
||
|
|
(char *restrict dest, const char *restrict src, size_t n));
|
||
|
|
# endif
|
||
|
|
# if __GLIBC__ >= 2
|
||
|
|
_GL_CXXALIASWARN (strncat);
|
||
|
|
# endif
|
||
|
|
#elif defined GNULIB_POSIXCHECK
|
||
|
|
# undef strncat
|
||
|
|
# if HAVE_RAW_DECL_STRNCAT
|
||
|
|
_GL_WARN_ON_USE (strncat, "strncat is unportable - "
|
||
|
|
"use gnulib module strncat for portability");
|
||
|
|
# endif
|
||
|
|
#endif
|
||
|
|
|
||
|
|
/* Return a newly allocated copy of at most N bytes of STRING. */
|
||
|
|
#if @GNULIB_STRNDUP@
|
||
|
|
# if @REPLACE_STRNDUP@
|
||
|
|
# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
|
||
|
|
# undef strndup
|
||
|
|
# define strndup rpl_strndup
|
||
|
|
# endif
|
||
|
|
_GL_FUNCDECL_RPL (strndup, char *, (char const *__s, size_t __n)
|
||
|
|
_GL_ARG_NONNULL ((1)));
|
||
|
|
_GL_CXXALIAS_RPL (strndup, char *, (char const *__s, size_t __n));
|
||
|
|
# else
|
||
|
|
# if ! @HAVE_DECL_STRNDUP@
|
||
|
|
_GL_FUNCDECL_SYS (strndup, char *, (char const *__s, size_t __n)
|
||
|
|
_GL_ARG_NONNULL ((1)));
|
||
|
|
# endif
|
||
|
|
_GL_CXXALIAS_SYS (strndup, char *, (char const *__s, size_t __n));
|
||
|
|
# endif
|
||
|
|
_GL_CXXALIASWARN (strndup);
|
||
|
|
#elif defined GNULIB_POSIXCHECK
|
||
|
|
# undef strndup
|
||
|
|
# if HAVE_RAW_DECL_STRNDUP
|
||
|
|
_GL_WARN_ON_USE (strndup, "strndup is unportable - "
|
||
|
|
"use gnulib module strndup for portability");
|
||
|
|
# endif
|
||
|
|
#endif
|
||
|
|
|
||
|
|
/* Find the length (number of bytes) of STRING, but scan at most
|
||
|
|
MAXLEN bytes. If no '\0' terminator is found in that many bytes,
|
||
|
|
return MAXLEN. */
|
||
|
|
#if @GNULIB_STRNLEN@
|
||
|
|
# if @REPLACE_STRNLEN@
|
||
|
|
# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
|
||
|
|
# undef strnlen
|
||
|
|
# define strnlen rpl_strnlen
|
||
|
|
# endif
|
||
|
|
_GL_FUNCDECL_RPL (strnlen, size_t, (char const *__s, size_t __maxlen)
|
||
|
|
_GL_ATTRIBUTE_PURE
|
||
|
|
_GL_ARG_NONNULL ((1)));
|
||
|
|
_GL_CXXALIAS_RPL (strnlen, size_t, (char const *__s, size_t __maxlen));
|
||
|
|
# else
|
||
|
|
# if ! @HAVE_DECL_STRNLEN@
|
||
|
|
_GL_FUNCDECL_SYS (strnlen, size_t, (char const *__s, size_t __maxlen)
|
||
|
|
_GL_ATTRIBUTE_PURE
|
||
|
|
_GL_ARG_NONNULL ((1)));
|
||
|
|
# endif
|
||
|
|
_GL_CXXALIAS_SYS (strnlen, size_t, (char const *__s, size_t __maxlen));
|
||
|
|
# endif
|
||
|
|
_GL_CXXALIASWARN (strnlen);
|
||
|
|
#elif defined GNULIB_POSIXCHECK
|
||
|
|
# undef strnlen
|
||
|
|
# if HAVE_RAW_DECL_STRNLEN
|
||
|
|
_GL_WARN_ON_USE (strnlen, "strnlen is unportable - "
|
||
|
|
"use gnulib module strnlen for portability");
|
||
|
|
# endif
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#if defined GNULIB_POSIXCHECK
|
||
|
|
/* strcspn() assumes the second argument is a list of single-byte characters.
|
||
|
|
Even in this simple case, it does not work with multibyte strings if the
|
||
|
|
locale encoding is GB18030 and one of the characters to be searched is a
|
||
|
|
digit. */
|
||
|
|
# undef strcspn
|
||
|
|
/* Assume strcspn is always declared. */
|
||
|
|
_GL_WARN_ON_USE (strcspn, "strcspn cannot work correctly on character strings "
|
||
|
|
"in multibyte locales - "
|
||
|
|
"use mbscspn if you care about internationalization");
|
||
|
|
#endif
|
||
|
|
|
||
|
|
/* Find the first occurrence in S of any character in ACCEPT. */
|
||
|
|
#if @GNULIB_STRPBRK@
|
||
|
|
# if ! @HAVE_STRPBRK@
|
||
|
|
_GL_FUNCDECL_SYS (strpbrk, char *, (char const *__s, char const *__accept)
|
||
|
|
_GL_ATTRIBUTE_PURE
|
||
|
|
_GL_ARG_NONNULL ((1, 2)));
|
||
|
|
# endif
|
||
|
|
/* On some systems, this function is defined as an overloaded function:
|
||
|
|
extern "C" { const char * strpbrk (const char *, const char *); }
|
||
|
|
extern "C++" { char * strpbrk (char *, const char *); } */
|
||
|
|
_GL_CXXALIAS_SYS_CAST2 (strpbrk,
|
||
|
|
char *, (char const *__s, char const *__accept),
|
||
|
|
const char *, (char const *__s, char const *__accept));
|
||
|
|
# if ((__GLIBC__ == 2 && __GLIBC_MINOR__ >= 10) && !defined __UCLIBC__) \
|
||
|
|
&& (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 4))
|
||
|
|
_GL_CXXALIASWARN1 (strpbrk, char *, (char *__s, char const *__accept));
|
||
|
|
_GL_CXXALIASWARN1 (strpbrk, char const *,
|
||
|
|
(char const *__s, char const *__accept));
|
||
|
|
# elif __GLIBC__ >= 2
|
||
|
|
_GL_CXXALIASWARN (strpbrk);
|
||
|
|
# endif
|
||
|
|
# if defined GNULIB_POSIXCHECK
|
||
|
|
/* strpbrk() assumes the second argument is a list of single-byte characters.
|
||
|
|
Even in this simple case, it does not work with multibyte strings if the
|
||
|
|
locale encoding is GB18030 and one of the characters to be searched is a
|
||
|
|
digit. */
|
||
|
|
# undef strpbrk
|
||
|
|
_GL_WARN_ON_USE (strpbrk, "strpbrk cannot work correctly on character strings "
|
||
|
|
"in multibyte locales - "
|
||
|
|
"use mbspbrk if you care about internationalization");
|
||
|
|
# endif
|
||
|
|
#elif defined GNULIB_POSIXCHECK
|
||
|
|
# undef strpbrk
|
||
|
|
# if HAVE_RAW_DECL_STRPBRK
|
||
|
|
_GL_WARN_ON_USE (strpbrk, "strpbrk is unportable - "
|
||
|
|
"use gnulib module strpbrk for portability");
|
||
|
|
# endif
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#if defined GNULIB_POSIXCHECK
|
||
|
|
/* strspn() assumes the second argument is a list of single-byte characters.
|
||
|
|
Even in this simple case, it cannot work with multibyte strings. */
|
||
|
|
# undef strspn
|
||
|
|
/* Assume strspn is always declared. */
|
||
|
|
_GL_WARN_ON_USE (strspn, "strspn cannot work correctly on character strings "
|
||
|
|
"in multibyte locales - "
|
||
|
|
"use mbsspn if you care about internationalization");
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#if defined GNULIB_POSIXCHECK
|
||
|
|
/* strrchr() does not work with multibyte strings if the locale encoding is
|
||
|
|
GB18030 and the character to be searched is a digit. */
|
||
|
|
# undef strrchr
|
||
|
|
/* Assume strrchr is always declared. */
|
||
|
|
_GL_WARN_ON_USE (strrchr, "strrchr cannot work correctly on character strings "
|
||
|
|
"in some multibyte locales - "
|
||
|
|
"use mbsrchr if you care about internationalization");
|
||
|
|
#endif
|
||
|
|
|
||
|
|
/* Search the next delimiter (char listed in DELIM) starting at *STRINGP.
|
||
|
|
If one is found, overwrite it with a NUL, and advance *STRINGP
|
||
|
|
to point to the next char after it. Otherwise, set *STRINGP to NULL.
|
||
|
|
If *STRINGP was already NULL, nothing happens.
|
||
|
|
Return the old value of *STRINGP.
|
||
|
|
|
||
|
|
This is a variant of strtok() that is multithread-safe and supports
|
||
|
|
empty fields.
|
||
|
|
|
||
|
|
Caveat: It modifies the original string.
|
||
|
|
Caveat: These functions cannot be used on constant strings.
|
||
|
|
Caveat: The identity of the delimiting character is lost.
|
||
|
|
Caveat: It doesn't work with multibyte strings unless all of the delimiter
|
||
|
|
characters are ASCII characters < 0x30.
|
||
|
|
|
||
|
|
See also strtok_r(). */
|
||
|
|
#if @GNULIB_STRSEP@
|
||
|
|
# if ! @HAVE_STRSEP@
|
||
|
|
_GL_FUNCDECL_SYS (strsep, char *,
|
||
|
|
(char **restrict __stringp, char const *restrict __delim)
|
||
|
|
_GL_ARG_NONNULL ((1, 2)));
|
||
|
|
# endif
|
||
|
|
_GL_CXXALIAS_SYS (strsep, char *,
|
||
|
|
(char **restrict __stringp, char const *restrict __delim));
|
||
|
|
_GL_CXXALIASWARN (strsep);
|
||
|
|
# if defined GNULIB_POSIXCHECK
|
||
|
|
# undef strsep
|
||
|
|
_GL_WARN_ON_USE (strsep, "strsep cannot work correctly on character strings "
|
||
|
|
"in multibyte locales - "
|
||
|
|
"use mbssep if you care about internationalization");
|
||
|
|
# endif
|
||
|
|
#elif defined GNULIB_POSIXCHECK
|
||
|
|
# undef strsep
|
||
|
|
# if HAVE_RAW_DECL_STRSEP
|
||
|
|
_GL_WARN_ON_USE (strsep, "strsep is unportable - "
|
||
|
|
"use gnulib module strsep for portability");
|
||
|
|
# endif
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#if @GNULIB_STRSTR@
|
||
|
|
# if @REPLACE_STRSTR@
|
||
|
|
# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
|
||
|
|
# define strstr rpl_strstr
|
||
|
|
# endif
|
||
|
|
_GL_FUNCDECL_RPL (strstr, char *, (const char *haystack, const char *needle)
|
||
|
|
_GL_ATTRIBUTE_PURE
|
||
|
|
_GL_ARG_NONNULL ((1, 2)));
|
||
|
|
_GL_CXXALIAS_RPL (strstr, char *, (const char *haystack, const char *needle));
|
||
|
|
# else
|
||
|
|
/* On some systems, this function is defined as an overloaded function:
|
||
|
|
extern "C++" { const char * strstr (const char *, const char *); }
|
||
|
|
extern "C++" { char * strstr (char *, const char *); } */
|
||
|
|
_GL_CXXALIAS_SYS_CAST2 (strstr,
|
||
|
|
char *, (const char *haystack, const char *needle),
|
||
|
|
const char *, (const char *haystack, const char *needle));
|
||
|
|
# endif
|
||
|
|
# if ((__GLIBC__ == 2 && __GLIBC_MINOR__ >= 10) && !defined __UCLIBC__) \
|
||
|
|
&& (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 4))
|
||
|
|
_GL_CXXALIASWARN1 (strstr, char *, (char *haystack, const char *needle));
|
||
|
|
_GL_CXXALIASWARN1 (strstr, const char *,
|
||
|
|
(const char *haystack, const char *needle));
|
||
|
|
# elif __GLIBC__ >= 2
|
||
|
|
_GL_CXXALIASWARN (strstr);
|
||
|
|
# endif
|
||
|
|
#elif defined GNULIB_POSIXCHECK
|
||
|
|
/* strstr() does not work with multibyte strings if the locale encoding is
|
||
|
|
different from UTF-8:
|
||
|
|
POSIX says that it operates on "strings", and "string" in POSIX is defined
|
||
|
|
as a sequence of bytes, not of characters. */
|
||
|
|
# undef strstr
|
||
|
|
/* Assume strstr is always declared. */
|
||
|
|
_GL_WARN_ON_USE (strstr, "strstr is quadratic on many systems, and cannot "
|
||
|
|
"work correctly on character strings in most "
|
||
|
|
"multibyte locales - "
|
||
|
|
"use mbsstr if you care about internationalization, "
|
||
|
|
"or use strstr if you care about speed");
|
||
|
|
#endif
|
||
|
|
|
||
|
|
/* Find the first occurrence of NEEDLE in HAYSTACK, using case-insensitive
|
||
|
|
comparison. */
|
||
|
|
#if @GNULIB_STRCASESTR@
|
||
|
|
# if @REPLACE_STRCASESTR@
|
||
|
|
# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
|
||
|
|
# define strcasestr rpl_strcasestr
|
||
|
|
# endif
|
||
|
|
_GL_FUNCDECL_RPL (strcasestr, char *,
|
||
|
|
(const char *haystack, const char *needle)
|
||
|
|
_GL_ATTRIBUTE_PURE
|
||
|
|
_GL_ARG_NONNULL ((1, 2)));
|
||
|
|
_GL_CXXALIAS_RPL (strcasestr, char *,
|
||
|
|
(const char *haystack, const char *needle));
|
||
|
|
# else
|
||
|
|
# if ! @HAVE_STRCASESTR@
|
||
|
|
_GL_FUNCDECL_SYS (strcasestr, char *,
|
||
|
|
(const char *haystack, const char *needle)
|
||
|
|
_GL_ATTRIBUTE_PURE
|
||
|
|
_GL_ARG_NONNULL ((1, 2)));
|
||
|
|
# endif
|
||
|
|
/* On some systems, this function is defined as an overloaded function:
|
||
|
|
extern "C++" { const char * strcasestr (const char *, const char *); }
|
||
|
|
extern "C++" { char * strcasestr (char *, const char *); } */
|
||
|
|
_GL_CXXALIAS_SYS_CAST2 (strcasestr,
|
||
|
|
char *, (const char *haystack, const char *needle),
|
||
|
|
const char *, (const char *haystack, const char *needle));
|
||
|
|
# endif
|
||
|
|
# if ((__GLIBC__ == 2 && __GLIBC_MINOR__ >= 10) && !defined __UCLIBC__) \
|
||
|
|
&& (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 4))
|
||
|
|
_GL_CXXALIASWARN1 (strcasestr, char *, (char *haystack, const char *needle));
|
||
|
|
_GL_CXXALIASWARN1 (strcasestr, const char *,
|
||
|
|
(const char *haystack, const char *needle));
|
||
|
|
# else
|
||
|
|
_GL_CXXALIASWARN (strcasestr);
|
||
|
|
# endif
|
||
|
|
#elif defined GNULIB_POSIXCHECK
|
||
|
|
/* strcasestr() does not work with multibyte strings:
|
||
|
|
It is a glibc extension, and glibc implements it only for unibyte
|
||
|
|
locales. */
|
||
|
|
# undef strcasestr
|
||
|
|
# if HAVE_RAW_DECL_STRCASESTR
|
||
|
|
_GL_WARN_ON_USE (strcasestr, "strcasestr does work correctly on character "
|
||
|
|
"strings in multibyte locales - "
|
||
|
|
"use mbscasestr if you care about "
|
||
|
|
"internationalization, or use c-strcasestr if you want "
|
||
|
|
"a locale independent function");
|
||
|
|
# endif
|
||
|
|
#endif
|
||
|
|
|
||
|
|
/* Parse S into tokens separated by characters in DELIM.
|
||
|
|
If S is NULL, the saved pointer in SAVE_PTR is used as
|
||
|
|
the next starting point. For example:
|
||
|
|
char s[] = "-abc-=-def";
|
||
|
|
char *sp;
|
||
|
|
x = strtok_r(s, "-", &sp); // x = "abc", sp = "=-def"
|
||
|
|
x = strtok_r(NULL, "-=", &sp); // x = "def", sp = NULL
|
||
|
|
x = strtok_r(NULL, "=", &sp); // x = NULL
|
||
|
|
// s = "abc\0-def\0"
|
||
|
|
|
||
|
|
This is a variant of strtok() that is multithread-safe.
|
||
|
|
|
||
|
|
For the POSIX documentation for this function, see:
|
||
|
|
https://pubs.opengroup.org/onlinepubs/9699919799/functions/strtok.html
|
||
|
|
|
||
|
|
Caveat: It modifies the original string.
|
||
|
|
Caveat: These functions cannot be used on constant strings.
|
||
|
|
Caveat: The identity of the delimiting character is lost.
|
||
|
|
Caveat: It doesn't work with multibyte strings unless all of the delimiter
|
||
|
|
characters are ASCII characters < 0x30.
|
||
|
|
|
||
|
|
See also strsep(). */
|
||
|
|
#if @GNULIB_STRTOK_R@
|
||
|
|
# if @REPLACE_STRTOK_R@
|
||
|
|
# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
|
||
|
|
# undef strtok_r
|
||
|
|
# define strtok_r rpl_strtok_r
|
||
|
|
# endif
|
||
|
|
_GL_FUNCDECL_RPL (strtok_r, char *,
|
||
|
|
(char *restrict s, char const *restrict delim,
|
||
|
|
char **restrict save_ptr)
|
||
|
|
_GL_ARG_NONNULL ((2, 3)));
|
||
|
|
_GL_CXXALIAS_RPL (strtok_r, char *,
|
||
|
|
(char *restrict s, char const *restrict delim,
|
||
|
|
char **restrict save_ptr));
|
||
|
|
# else
|
||
|
|
# if @UNDEFINE_STRTOK_R@ || defined GNULIB_POSIXCHECK
|
||
|
|
# undef strtok_r
|
||
|
|
# endif
|
||
|
|
# if ! @HAVE_DECL_STRTOK_R@
|
||
|
|
_GL_FUNCDECL_SYS (strtok_r, char *,
|
||
|
|
(char *restrict s, char const *restrict delim,
|
||
|
|
char **restrict save_ptr)
|
||
|
|
_GL_ARG_NONNULL ((2, 3)));
|
||
|
|
# endif
|
||
|
|
_GL_CXXALIAS_SYS (strtok_r, char *,
|
||
|
|
(char *restrict s, char const *restrict delim,
|
||
|
|
char **restrict save_ptr));
|
||
|
|
# endif
|
||
|
|
_GL_CXXALIASWARN (strtok_r);
|
||
|
|
# if defined GNULIB_POSIXCHECK
|
||
|
|
_GL_WARN_ON_USE (strtok_r, "strtok_r cannot work correctly on character "
|
||
|
|
"strings in multibyte locales - "
|
||
|
|
"use mbstok_r if you care about internationalization");
|
||
|
|
# endif
|
||
|
|
#elif defined GNULIB_POSIXCHECK
|
||
|
|
# undef strtok_r
|
||
|
|
# if HAVE_RAW_DECL_STRTOK_R
|
||
|
|
_GL_WARN_ON_USE (strtok_r, "strtok_r is unportable - "
|
||
|
|
"use gnulib module strtok_r for portability");
|
||
|
|
# endif
|
||
|
|
#endif
|
||
|
|
|
||
|
|
|
||
|
|
/* The following functions are not specified by POSIX. They are gnulib
|
||
|
|
extensions. */
|
||
|
|
|
||
|
|
#if @GNULIB_MBSLEN@
|
||
|
|
/* Return the number of multibyte characters in the character string STRING.
|
||
|
|
This considers multibyte characters, unlike strlen, which counts bytes. */
|
||
|
|
# ifdef __MirBSD__ /* MirBSD defines mbslen as a macro. Override it. */
|
||
|
|
# undef mbslen
|
||
|
|
# endif
|
||
|
|
# if @HAVE_MBSLEN@ /* AIX, OSF/1, MirBSD define mbslen already in libc. */
|
||
|
|
# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
|
||
|
|
# define mbslen rpl_mbslen
|
||
|
|
# endif
|
||
|
|
_GL_FUNCDECL_RPL (mbslen, size_t, (const char *string)
|
||
|
|
_GL_ATTRIBUTE_PURE
|
||
|
|
_GL_ARG_NONNULL ((1)));
|
||
|
|
_GL_CXXALIAS_RPL (mbslen, size_t, (const char *string));
|
||
|
|
# else
|
||
|
|
_GL_FUNCDECL_SYS (mbslen, size_t, (const char *string)
|
||
|
|
_GL_ATTRIBUTE_PURE
|
||
|
|
_GL_ARG_NONNULL ((1)));
|
||
|
|
_GL_CXXALIAS_SYS (mbslen, size_t, (const char *string));
|
||
|
|
# endif
|
||
|
|
_GL_CXXALIASWARN (mbslen);
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#if @GNULIB_MBSNLEN@
|
||
|
|
/* Return the number of multibyte characters in the character string starting
|
||
|
|
at STRING and ending at STRING + LEN. */
|
||
|
|
_GL_EXTERN_C size_t mbsnlen (const char *string, size_t len)
|
||
|
|
_GL_ATTRIBUTE_PURE
|
||
|
|
_GL_ARG_NONNULL ((1));
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#if @GNULIB_MBSCHR@
|
||
|
|
/* Locate the first single-byte character C in the character string STRING,
|
||
|
|
and return a pointer to it. Return NULL if C is not found in STRING.
|
||
|
|
Unlike strchr(), this function works correctly in multibyte locales with
|
||
|
|
encodings such as GB18030. */
|
||
|
|
# if defined __hpux
|
||
|
|
# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
|
||
|
|
# define mbschr rpl_mbschr /* avoid collision with HP-UX function */
|
||
|
|
# endif
|
||
|
|
_GL_FUNCDECL_RPL (mbschr, char *, (const char *string, int c)
|
||
|
|
_GL_ATTRIBUTE_PURE
|
||
|
|
_GL_ARG_NONNULL ((1)));
|
||
|
|
_GL_CXXALIAS_RPL (mbschr, char *, (const char *string, int c));
|
||
|
|
# else
|
||
|
|
_GL_FUNCDECL_SYS (mbschr, char *, (const char *string, int c)
|
||
|
|
_GL_ATTRIBUTE_PURE
|
||
|
|
_GL_ARG_NONNULL ((1)));
|
||
|
|
_GL_CXXALIAS_SYS (mbschr, char *, (const char *string, int c));
|
||
|
|
# endif
|
||
|
|
_GL_CXXALIASWARN (mbschr);
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#if @GNULIB_MBSRCHR@
|
||
|
|
/* Locate the last single-byte character C in the character string STRING,
|
||
|
|
and return a pointer to it. Return NULL if C is not found in STRING.
|
||
|
|
Unlike strrchr(), this function works correctly in multibyte locales with
|
||
|
|
encodings such as GB18030. */
|
||
|
|
# if defined __hpux || defined __INTERIX
|
||
|
|
# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
|
||
|
|
# define mbsrchr rpl_mbsrchr /* avoid collision with system function */
|
||
|
|
# endif
|
||
|
|
_GL_FUNCDECL_RPL (mbsrchr, char *, (const char *string, int c)
|
||
|
|
_GL_ATTRIBUTE_PURE
|
||
|
|
_GL_ARG_NONNULL ((1)));
|
||
|
|
_GL_CXXALIAS_RPL (mbsrchr, char *, (const char *string, int c));
|
||
|
|
# else
|
||
|
|
_GL_FUNCDECL_SYS (mbsrchr, char *, (const char *string, int c)
|
||
|
|
_GL_ATTRIBUTE_PURE
|
||
|
|
_GL_ARG_NONNULL ((1)));
|
||
|
|
_GL_CXXALIAS_SYS (mbsrchr, char *, (const char *string, int c));
|
||
|
|
# endif
|
||
|
|
_GL_CXXALIASWARN (mbsrchr);
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#if @GNULIB_MBSSTR@
|
||
|
|
/* Find the first occurrence of the character string NEEDLE in the character
|
||
|
|
string HAYSTACK. Return NULL if NEEDLE is not found in HAYSTACK.
|
||
|
|
Unlike strstr(), this function works correctly in multibyte locales with
|
||
|
|
encodings different from UTF-8. */
|
||
|
|
_GL_EXTERN_C char * mbsstr (const char *haystack, const char *needle)
|
||
|
|
_GL_ATTRIBUTE_PURE
|
||
|
|
_GL_ARG_NONNULL ((1, 2));
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#if @GNULIB_MBSCASECMP@
|
||
|
|
/* Compare the character strings S1 and S2, ignoring case, returning less than,
|
||
|
|
equal to or greater than zero if S1 is lexicographically less than, equal to
|
||
|
|
or greater than S2.
|
||
|
|
Note: This function may, in multibyte locales, return 0 for strings of
|
||
|
|
different lengths!
|
||
|
|
Unlike strcasecmp(), this function works correctly in multibyte locales. */
|
||
|
|
_GL_EXTERN_C int mbscasecmp (const char *s1, const char *s2)
|
||
|
|
_GL_ATTRIBUTE_PURE
|
||
|
|
_GL_ARG_NONNULL ((1, 2));
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#if @GNULIB_MBSNCASECMP@
|
||
|
|
/* Compare the initial segment of the character string S1 consisting of at most
|
||
|
|
N characters with the initial segment of the character string S2 consisting
|
||
|
|
of at most N characters, ignoring case, returning less than, equal to or
|
||
|
|
greater than zero if the initial segment of S1 is lexicographically less
|
||
|
|
than, equal to or greater than the initial segment of S2.
|
||
|
|
Note: This function may, in multibyte locales, return 0 for initial segments
|
||
|
|
of different lengths!
|
||
|
|
Unlike strncasecmp(), this function works correctly in multibyte locales.
|
||
|
|
But beware that N is not a byte count but a character count! */
|
||
|
|
_GL_EXTERN_C int mbsncasecmp (const char *s1, const char *s2, size_t n)
|
||
|
|
_GL_ATTRIBUTE_PURE
|
||
|
|
_GL_ARG_NONNULL ((1, 2));
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#if @GNULIB_MBSPCASECMP@
|
||
|
|
/* Compare the initial segment of the character string STRING consisting of
|
||
|
|
at most mbslen (PREFIX) characters with the character string PREFIX,
|
||
|
|
ignoring case. If the two match, return a pointer to the first byte
|
||
|
|
after this prefix in STRING. Otherwise, return NULL.
|
||
|
|
Note: This function may, in multibyte locales, return non-NULL if STRING
|
||
|
|
is of smaller length than PREFIX!
|
||
|
|
Unlike strncasecmp(), this function works correctly in multibyte
|
||
|
|
locales. */
|
||
|
|
_GL_EXTERN_C char * mbspcasecmp (const char *string, const char *prefix)
|
||
|
|
_GL_ATTRIBUTE_PURE
|
||
|
|
_GL_ARG_NONNULL ((1, 2));
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#if @GNULIB_MBSCASESTR@
|
||
|
|
/* Find the first occurrence of the character string NEEDLE in the character
|
||
|
|
string HAYSTACK, using case-insensitive comparison.
|
||
|
|
Note: This function may, in multibyte locales, return success even if
|
||
|
|
strlen (haystack) < strlen (needle) !
|
||
|
|
Unlike strcasestr(), this function works correctly in multibyte locales. */
|
||
|
|
_GL_EXTERN_C char * mbscasestr (const char *haystack, const char *needle)
|
||
|
|
_GL_ATTRIBUTE_PURE
|
||
|
|
_GL_ARG_NONNULL ((1, 2));
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#if @GNULIB_MBSCSPN@
|
||
|
|
/* Find the first occurrence in the character string STRING of any character
|
||
|
|
in the character string ACCEPT. Return the number of bytes from the
|
||
|
|
beginning of the string to this occurrence, or to the end of the string
|
||
|
|
if none exists.
|
||
|
|
Unlike strcspn(), this function works correctly in multibyte locales. */
|
||
|
|
_GL_EXTERN_C size_t mbscspn (const char *string, const char *accept)
|
||
|
|
_GL_ATTRIBUTE_PURE
|
||
|
|
_GL_ARG_NONNULL ((1, 2));
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#if @GNULIB_MBSPBRK@
|
||
|
|
/* Find the first occurrence in the character string STRING of any character
|
||
|
|
in the character string ACCEPT. Return the pointer to it, or NULL if none
|
||
|
|
exists.
|
||
|
|
Unlike strpbrk(), this function works correctly in multibyte locales. */
|
||
|
|
# if defined __hpux
|
||
|
|
# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
|
||
|
|
# define mbspbrk rpl_mbspbrk /* avoid collision with HP-UX function */
|
||
|
|
# endif
|
||
|
|
_GL_FUNCDECL_RPL (mbspbrk, char *, (const char *string, const char *accept)
|
||
|
|
_GL_ATTRIBUTE_PURE
|
||
|
|
_GL_ARG_NONNULL ((1, 2)));
|
||
|
|
_GL_CXXALIAS_RPL (mbspbrk, char *, (const char *string, const char *accept));
|
||
|
|
# else
|
||
|
|
_GL_FUNCDECL_SYS (mbspbrk, char *, (const char *string, const char *accept)
|
||
|
|
_GL_ATTRIBUTE_PURE
|
||
|
|
_GL_ARG_NONNULL ((1, 2)));
|
||
|
|
_GL_CXXALIAS_SYS (mbspbrk, char *, (const char *string, const char *accept));
|
||
|
|
# endif
|
||
|
|
_GL_CXXALIASWARN (mbspbrk);
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#if @GNULIB_MBSSPN@
|
||
|
|
/* Find the first occurrence in the character string STRING of any character
|
||
|
|
not in the character string REJECT. Return the number of bytes from the
|
||
|
|
beginning of the string to this occurrence, or to the end of the string
|
||
|
|
if none exists.
|
||
|
|
Unlike strspn(), this function works correctly in multibyte locales. */
|
||
|
|
_GL_EXTERN_C size_t mbsspn (const char *string, const char *reject)
|
||
|
|
_GL_ATTRIBUTE_PURE
|
||
|
|
_GL_ARG_NONNULL ((1, 2));
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#if @GNULIB_MBSSEP@
|
||
|
|
/* Search the next delimiter (multibyte character listed in the character
|
||
|
|
string DELIM) starting at the character string *STRINGP.
|
||
|
|
If one is found, overwrite it with a NUL, and advance *STRINGP to point
|
||
|
|
to the next multibyte character after it. Otherwise, set *STRINGP to NULL.
|
||
|
|
If *STRINGP was already NULL, nothing happens.
|
||
|
|
Return the old value of *STRINGP.
|
||
|
|
|
||
|
|
This is a variant of mbstok_r() that supports empty fields.
|
||
|
|
|
||
|
|
Caveat: It modifies the original string.
|
||
|
|
Caveat: These functions cannot be used on constant strings.
|
||
|
|
Caveat: The identity of the delimiting character is lost.
|
||
|
|
|
||
|
|
See also mbstok_r(). */
|
||
|
|
_GL_EXTERN_C char * mbssep (char **stringp, const char *delim)
|
||
|
|
_GL_ARG_NONNULL ((1, 2));
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#if @GNULIB_MBSTOK_R@
|
||
|
|
/* Parse the character string STRING into tokens separated by characters in
|
||
|
|
the character string DELIM.
|
||
|
|
If STRING is NULL, the saved pointer in SAVE_PTR is used as
|
||
|
|
the next starting point. For example:
|
||
|
|
char s[] = "-abc-=-def";
|
||
|
|
char *sp;
|
||
|
|
x = mbstok_r(s, "-", &sp); // x = "abc", sp = "=-def"
|
||
|
|
x = mbstok_r(NULL, "-=", &sp); // x = "def", sp = NULL
|
||
|
|
x = mbstok_r(NULL, "=", &sp); // x = NULL
|
||
|
|
// s = "abc\0-def\0"
|
||
|
|
|
||
|
|
Caveat: It modifies the original string.
|
||
|
|
Caveat: These functions cannot be used on constant strings.
|
||
|
|
Caveat: The identity of the delimiting character is lost.
|
||
|
|
|
||
|
|
See also mbssep(). */
|
||
|
|
_GL_EXTERN_C char * mbstok_r (char *restrict string, const char *delim,
|
||
|
|
char **save_ptr)
|
||
|
|
_GL_ARG_NONNULL ((2, 3));
|
||
|
|
#endif
|
||
|
|
|
||
|
|
/* Map any int, typically from errno, into an error message. */
|
||
|
|
#if @GNULIB_STRERROR@
|
||
|
|
# if @REPLACE_STRERROR@
|
||
|
|
# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
|
||
|
|
# undef strerror
|
||
|
|
# define strerror rpl_strerror
|
||
|
|
# endif
|
||
|
|
_GL_FUNCDECL_RPL (strerror, char *, (int));
|
||
|
|
_GL_CXXALIAS_RPL (strerror, char *, (int));
|
||
|
|
# else
|
||
|
|
_GL_CXXALIAS_SYS (strerror, char *, (int));
|
||
|
|
# endif
|
||
|
|
# if __GLIBC__ >= 2
|
||
|
|
_GL_CXXALIASWARN (strerror);
|
||
|
|
# endif
|
||
|
|
#elif defined GNULIB_POSIXCHECK
|
||
|
|
# undef strerror
|
||
|
|
/* Assume strerror is always declared. */
|
||
|
|
_GL_WARN_ON_USE (strerror, "strerror is unportable - "
|
||
|
|
"use gnulib module strerror to guarantee non-NULL result");
|
||
|
|
#endif
|
||
|
|
|
||
|
|
/* Map any int, typically from errno, into an error message. Multithread-safe.
|
||
|
|
Uses the POSIX declaration, not the glibc declaration. */
|
||
|
|
#if @GNULIB_STRERROR_R@
|
||
|
|
# if @REPLACE_STRERROR_R@
|
||
|
|
# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
|
||
|
|
# undef strerror_r
|
||
|
|
# define strerror_r rpl_strerror_r
|
||
|
|
# endif
|
||
|
|
_GL_FUNCDECL_RPL (strerror_r, int, (int errnum, char *buf, size_t buflen)
|
||
|
|
_GL_ARG_NONNULL ((2)));
|
||
|
|
_GL_CXXALIAS_RPL (strerror_r, int, (int errnum, char *buf, size_t buflen));
|
||
|
|
# else
|
||
|
|
# if !@HAVE_DECL_STRERROR_R@
|
||
|
|
_GL_FUNCDECL_SYS (strerror_r, int, (int errnum, char *buf, size_t buflen)
|
||
|
|
_GL_ARG_NONNULL ((2)));
|
||
|
|
# endif
|
||
|
|
_GL_CXXALIAS_SYS (strerror_r, int, (int errnum, char *buf, size_t buflen));
|
||
|
|
# endif
|
||
|
|
# if @HAVE_DECL_STRERROR_R@
|
||
|
|
_GL_CXXALIASWARN (strerror_r);
|
||
|
|
# endif
|
||
|
|
#elif defined GNULIB_POSIXCHECK
|
||
|
|
# undef strerror_r
|
||
|
|
# if HAVE_RAW_DECL_STRERROR_R
|
||
|
|
_GL_WARN_ON_USE (strerror_r, "strerror_r is unportable - "
|
||
|
|
"use gnulib module strerror_r-posix for portability");
|
||
|
|
# endif
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#if @GNULIB_STRSIGNAL@
|
||
|
|
# if @REPLACE_STRSIGNAL@
|
||
|
|
# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
|
||
|
|
# define strsignal rpl_strsignal
|
||
|
|
# endif
|
||
|
|
_GL_FUNCDECL_RPL (strsignal, char *, (int __sig));
|
||
|
|
_GL_CXXALIAS_RPL (strsignal, char *, (int __sig));
|
||
|
|
# else
|
||
|
|
# if ! @HAVE_DECL_STRSIGNAL@
|
||
|
|
_GL_FUNCDECL_SYS (strsignal, char *, (int __sig));
|
||
|
|
# endif
|
||
|
|
/* Need to cast, because on Cygwin 1.5.x systems, the return type is
|
||
|
|
'const char *'. */
|
||
|
|
_GL_CXXALIAS_SYS_CAST (strsignal, char *, (int __sig));
|
||
|
|
# endif
|
||
|
|
_GL_CXXALIASWARN (strsignal);
|
||
|
|
#elif defined GNULIB_POSIXCHECK
|
||
|
|
# undef strsignal
|
||
|
|
# if HAVE_RAW_DECL_STRSIGNAL
|
||
|
|
_GL_WARN_ON_USE (strsignal, "strsignal is unportable - "
|
||
|
|
"use gnulib module strsignal for portability");
|
||
|
|
# endif
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#if @GNULIB_STRVERSCMP@
|
||
|
|
# if !@HAVE_STRVERSCMP@
|
||
|
|
_GL_FUNCDECL_SYS (strverscmp, int, (const char *, const char *)
|
||
|
|
_GL_ATTRIBUTE_PURE
|
||
|
|
_GL_ARG_NONNULL ((1, 2)));
|
||
|
|
# endif
|
||
|
|
_GL_CXXALIAS_SYS (strverscmp, int, (const char *, const char *));
|
||
|
|
_GL_CXXALIASWARN (strverscmp);
|
||
|
|
#elif defined GNULIB_POSIXCHECK
|
||
|
|
# undef strverscmp
|
||
|
|
# if HAVE_RAW_DECL_STRVERSCMP
|
||
|
|
_GL_WARN_ON_USE (strverscmp, "strverscmp is unportable - "
|
||
|
|
"use gnulib module strverscmp for portability");
|
||
|
|
# endif
|
||
|
|
#endif
|
||
|
|
|
||
|
|
|
||
|
|
#endif /* _@GUARD_PREFIX@_STRING_H */
|
||
|
|
#endif /* _@GUARD_PREFIX@_STRING_H */
|
||
|
|
#endif
|