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981 lines
38 KiB
981 lines
38 KiB
/* A GNU-like <string.h>. |
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Copyright (C) 1995-1996, 2001-2011 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, write to the Free Software Foundation, |
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Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */ |
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#ifndef _@GUARD_PREFIX@_STRING_H |
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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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/* The include_next requires a split double-inclusion guard. */ |
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#@INCLUDE_NEXT@ @NEXT_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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/* 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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# else |
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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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# 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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# endif |
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#endif |
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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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(char *restrict __dst, char const *restrict __src) |
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_GL_ARG_NONNULL ((1, 2))); |
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# endif |
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_GL_CXXALIAS_SYS (stpcpy, char *, |
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(char *restrict __dst, char const *restrict __src)); |
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_GL_CXXALIASWARN (stpcpy); |
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#elif defined GNULIB_POSIXCHECK |
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# undef stpcpy |
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# if HAVE_RAW_DECL_STPCPY |
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_GL_WARN_ON_USE (stpcpy, "stpcpy is unportable - " |
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"use gnulib module stpcpy for portability"); |
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# endif |
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#endif |
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/* Copy no more than N bytes of SRC to DST, returning a pointer past the |
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last non-NUL byte written into DST. */ |
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#if @GNULIB_STPNCPY@ |
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# if @REPLACE_STPNCPY@ |
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# if !(defined __cplusplus && defined GNULIB_NAMESPACE) |
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# undef stpncpy |
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# define stpncpy rpl_stpncpy |
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# endif |
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_GL_FUNCDECL_RPL (stpncpy, char *, |
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(char *restrict __dst, char const *restrict __src, |
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size_t __n) |
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_GL_ARG_NONNULL ((1, 2))); |
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_GL_CXXALIAS_RPL (stpncpy, char *, |
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(char *restrict __dst, char const *restrict __src, |
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size_t __n)); |
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# else |
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# if ! @HAVE_STPNCPY@ |
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_GL_FUNCDECL_SYS (stpncpy, char *, |
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(char *restrict __dst, char 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 (stpncpy, char *, |
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(char *restrict __dst, char const *restrict __src, |
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size_t __n)); |
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# endif |
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_GL_CXXALIASWARN (stpncpy); |
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#elif defined GNULIB_POSIXCHECK |
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# undef stpncpy |
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# if HAVE_RAW_DECL_STPNCPY |
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_GL_WARN_ON_USE (stpncpy, "stpncpy is unportable - " |
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"use gnulib module stpncpy for portability"); |
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# endif |
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#endif |
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#if defined GNULIB_POSIXCHECK |
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/* strchr() does not work with multibyte strings if the locale encoding is |
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GB18030 and the character to be searched is a digit. */ |
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# undef strchr |
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/* Assume strchr is always declared. */ |
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_GL_WARN_ON_USE (strchr, "strchr cannot work correctly on character strings " |
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"in some multibyte locales - " |
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"use mbschr if you care about internationalization"); |
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#endif |
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/* Find the first occurrence of C in S or the final NUL byte. */ |
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#if @GNULIB_STRCHRNUL@ |
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# if @REPLACE_STRCHRNUL@ |
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# if !(defined __cplusplus && defined GNULIB_NAMESPACE) |
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# define strchrnul rpl_strchrnul |
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# endif |
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_GL_FUNCDECL_RPL (strchrnul, char *, (const char *__s, int __c_in) |
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_GL_ATTRIBUTE_PURE |
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_GL_ARG_NONNULL ((1))); |
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_GL_CXXALIAS_RPL (strchrnul, char *, |
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(const char *str, int ch)); |
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# else |
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# if ! @HAVE_STRCHRNUL@ |
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_GL_FUNCDECL_SYS (strchrnul, char *, (char 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 char * std::strchrnul (const char *, int); } |
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extern "C++" { char * std::strchrnul (char *, int); } */ |
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_GL_CXXALIAS_SYS_CAST2 (strchrnul, |
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char *, (char const *__s, int __c_in), |
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char const *, (char const *__s, int __c_in)); |
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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 (strchrnul, char *, (char *__s, int __c_in)); |
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_GL_CXXALIASWARN1 (strchrnul, char const *, (char const *__s, int __c_in)); |
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# else |
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_GL_CXXALIASWARN (strchrnul); |
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# endif |
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#elif defined GNULIB_POSIXCHECK |
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# undef strchrnul |
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# if HAVE_RAW_DECL_STRCHRNUL |
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_GL_WARN_ON_USE (strchrnul, "strchrnul is unportable - " |
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"use gnulib module strchrnul for portability"); |
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# endif |
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#endif |
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/* Duplicate S, returning an identical malloc'd string. */ |
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#if @GNULIB_STRDUP@ |
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# if @REPLACE_STRDUP@ |
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# if !(defined __cplusplus && defined GNULIB_NAMESPACE) |
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# undef strdup |
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# define strdup rpl_strdup |
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# endif |
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_GL_FUNCDECL_RPL (strdup, char *, (char const *__s) _GL_ARG_NONNULL ((1))); |
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_GL_CXXALIAS_RPL (strdup, char *, (char const *__s)); |
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# else |
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# if defined __cplusplus && defined GNULIB_NAMESPACE && defined strdup |
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/* strdup exists as a function and as a macro. Get rid of the macro. */ |
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# undef strdup |
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# endif |
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# if !(@HAVE_DECL_STRDUP@ || defined strdup) |
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_GL_FUNCDECL_SYS (strdup, char *, (char const *__s) _GL_ARG_NONNULL ((1))); |
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# endif |
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_GL_CXXALIAS_SYS (strdup, char *, (char const *__s)); |
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# endif |
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_GL_CXXALIASWARN (strdup); |
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#elif defined GNULIB_POSIXCHECK |
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# undef strdup |
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# if HAVE_RAW_DECL_STRDUP |
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_GL_WARN_ON_USE (strdup, "strdup is unportable - " |
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"use gnulib module strdup for portability"); |
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# endif |
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#endif |
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/* Append no more than N characters from SRC onto DEST. */ |
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#if @GNULIB_STRNCAT@ |
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# if @REPLACE_STRNCAT@ |
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# if !(defined __cplusplus && defined GNULIB_NAMESPACE) |
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# undef strncat |
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# define strncat rpl_strncat |
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# endif |
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_GL_FUNCDECL_RPL (strncat, char *, (char *dest, const char *src, size_t n) |
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_GL_ARG_NONNULL ((1, 2))); |
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_GL_CXXALIAS_RPL (strncat, char *, (char *dest, const char *src, size_t n)); |
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# else |
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_GL_CXXALIAS_SYS (strncat, char *, (char *dest, const char *src, size_t n)); |
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# endif |
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_GL_CXXALIASWARN (strncat); |
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#elif defined GNULIB_POSIXCHECK |
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# undef strncat |
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# if HAVE_RAW_DECL_STRNCAT |
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_GL_WARN_ON_USE (strncat, "strncat is unportable - " |
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"use gnulib module strncat for portability"); |
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# endif |
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#endif |
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/* Return a newly allocated copy of at most N bytes of STRING. */ |
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#if @GNULIB_STRNDUP@ |
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# if @REPLACE_STRNDUP@ |
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# if !(defined __cplusplus && defined GNULIB_NAMESPACE) |
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# undef strndup |
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# define strndup rpl_strndup |
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# endif |
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_GL_FUNCDECL_RPL (strndup, char *, (char const *__string, size_t __n) |
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_GL_ARG_NONNULL ((1))); |
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_GL_CXXALIAS_RPL (strndup, char *, (char const *__string, size_t __n)); |
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# else |
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# if ! @HAVE_DECL_STRNDUP@ |
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_GL_FUNCDECL_SYS (strndup, char *, (char const *__string, size_t __n) |
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_GL_ARG_NONNULL ((1))); |
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# endif |
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_GL_CXXALIAS_SYS (strndup, char *, (char const *__string, size_t __n)); |
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# endif |
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_GL_CXXALIASWARN (strndup); |
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#elif defined GNULIB_POSIXCHECK |
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# undef strndup |
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# if HAVE_RAW_DECL_STRNDUP |
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_GL_WARN_ON_USE (strndup, "strndup is unportable - " |
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"use gnulib module strndup for portability"); |
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# endif |
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#endif |
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|
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/* Find the length (number of bytes) of STRING, but scan at most |
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MAXLEN bytes. If no '\0' terminator is found in that many bytes, |
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return MAXLEN. */ |
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#if @GNULIB_STRNLEN@ |
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# if @REPLACE_STRNLEN@ |
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# if !(defined __cplusplus && defined GNULIB_NAMESPACE) |
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# undef strnlen |
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# define strnlen rpl_strnlen |
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# endif |
|
_GL_FUNCDECL_RPL (strnlen, size_t, (char const *__string, size_t __maxlen) |
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_GL_ATTRIBUTE_PURE |
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_GL_ARG_NONNULL ((1))); |
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_GL_CXXALIAS_RPL (strnlen, size_t, (char const *__string, size_t __maxlen)); |
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# else |
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# if ! @HAVE_DECL_STRNLEN@ |
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_GL_FUNCDECL_SYS (strnlen, size_t, (char const *__string, size_t __maxlen) |
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_GL_ATTRIBUTE_PURE |
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_GL_ARG_NONNULL ((1))); |
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# endif |
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_GL_CXXALIAS_SYS (strnlen, size_t, (char const *__string, size_t __maxlen)); |
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# endif |
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_GL_CXXALIASWARN (strnlen); |
|
#elif defined GNULIB_POSIXCHECK |
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# undef strnlen |
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# if HAVE_RAW_DECL_STRNLEN |
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_GL_WARN_ON_USE (strnlen, "strnlen is unportable - " |
|
"use gnulib module strnlen for portability"); |
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# endif |
|
#endif |
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|
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#if defined GNULIB_POSIXCHECK |
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/* 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 |
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locale encoding is GB18030 and one of the characters to be searched is a |
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digit. */ |
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# undef strcspn |
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/* Assume strcspn is always declared. */ |
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_GL_WARN_ON_USE (strcspn, "strcspn cannot work correctly on character strings " |
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"in multibyte locales - " |
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"use mbscspn if you care about internationalization"); |
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#endif |
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|
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/* Find the first occurrence in S of any character in ACCEPT. */ |
|
#if @GNULIB_STRPBRK@ |
|
# if ! @HAVE_STRPBRK@ |
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_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), |
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const char *, (char const *__s, char const *__accept)); |
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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 (strpbrk, char *, (char *__s, char const *__accept)); |
|
_GL_CXXALIASWARN1 (strpbrk, char const *, |
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(char const *__s, char const *__accept)); |
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# else |
|
_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)); |
|
# else |
|
_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: |
|
http://www.opengroup.org/susv3xsh/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_ARG_NONNULL ((1))); |
|
_GL_CXXALIAS_RPL (mbslen, size_t, (const char *string)); |
|
# else |
|
_GL_FUNCDECL_SYS (mbslen, size_t, (const char *string) _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_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_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_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_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_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_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_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_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_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_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_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_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_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_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 *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 |
|
_GL_CXXALIASWARN (strerror); |
|
#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@ |
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# if @REPLACE_STRERROR_R@ |
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# if !(defined __cplusplus && defined GNULIB_NAMESPACE) |
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# undef strerror_r |
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# define strerror_r rpl_strerror_r |
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# endif |
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_GL_FUNCDECL_RPL (strerror_r, int, (int errnum, char *buf, size_t buflen) |
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_GL_ARG_NONNULL ((2))); |
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_GL_CXXALIAS_RPL (strerror_r, int, (int errnum, char *buf, size_t buflen)); |
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# else |
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# if !@HAVE_DECL_STRERROR_R@ |
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_GL_FUNCDECL_SYS (strerror_r, int, (int errnum, char *buf, size_t buflen) |
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_GL_ARG_NONNULL ((2))); |
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# endif |
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_GL_CXXALIAS_SYS (strerror_r, int, (int errnum, char *buf, size_t buflen)); |
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# endif |
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# if @HAVE_DECL_STRERROR_R@ |
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_GL_CXXALIASWARN (strerror_r); |
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# endif |
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#elif defined GNULIB_POSIXCHECK |
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# undef strerror_r |
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# if HAVE_RAW_DECL_STRERROR_R |
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_GL_WARN_ON_USE (strerror_r, "strerror_r is unportable - " |
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"use gnulib module strerror_r-posix for portability"); |
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# endif |
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#endif |
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|
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#if @GNULIB_STRSIGNAL@ |
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# if @REPLACE_STRSIGNAL@ |
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# if !(defined __cplusplus && defined GNULIB_NAMESPACE) |
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# define strsignal rpl_strsignal |
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# endif |
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_GL_FUNCDECL_RPL (strsignal, char *, (int __sig)); |
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_GL_CXXALIAS_RPL (strsignal, char *, (int __sig)); |
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# else |
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# if ! @HAVE_DECL_STRSIGNAL@ |
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_GL_FUNCDECL_SYS (strsignal, char *, (int __sig)); |
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# endif |
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/* Need to cast, because on Cygwin 1.5.x systems, the return type is |
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'const char *'. */ |
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_GL_CXXALIAS_SYS_CAST (strsignal, char *, (int __sig)); |
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# endif |
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_GL_CXXALIASWARN (strsignal); |
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#elif defined GNULIB_POSIXCHECK |
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# undef strsignal |
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# if HAVE_RAW_DECL_STRSIGNAL |
|
_GL_WARN_ON_USE (strsignal, "strsignal is unportable - " |
|
"use gnulib module strsignal for portability"); |
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# endif |
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#endif |
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|
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#if @GNULIB_STRVERSCMP@ |
|
# if !@HAVE_STRVERSCMP@ |
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_GL_FUNCDECL_SYS (strverscmp, int, (const char *, const char *) |
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_GL_ARG_NONNULL ((1, 2))); |
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# endif |
|
_GL_CXXALIAS_SYS (strverscmp, int, (const char *, const char *)); |
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_GL_CXXALIASWARN (strverscmp); |
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#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"); |
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# endif |
|
#endif |
|
|
|
|
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#endif /* _@GUARD_PREFIX@_STRING_H */ |
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#endif /* _@GUARD_PREFIX@_STRING_H */
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