text: /* DO NOT EDIT! GENERATED AUTOMATICALLY! */
  /* A GNU-like <string.h>.
  
     Copyright (C) 1995-1996, 2001-2011 Free Software Foundation, Inc.
  
     This program is free software; you can redistribute it and/or modify
     it under the terms of the GNU General Public License as published by
     the Free Software Foundation; either version 3, or (at your option)
     any later version.
  
     This program is distributed in the hope that it will be useful,
     but WITHOUT ANY WARRANTY; without even the implied warranty of
     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
     GNU General Public License for more details.
  
     You should have received a copy of the GNU General Public License
     along with this program; if not, write to the Free Software Foundation,
     Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.  */
  
  #ifndef _GL_STRING_H
  
  #if __GNUC__ >= 3
  #pragma GCC system_header
  #endif
  
  
  /* The include_next requires a split double-inclusion guard.  */
  #include_next <string.h>
  
  #ifndef _GL_STRING_H
  #define _GL_STRING_H
  
  /* NetBSD 5.0 mis-defines NULL.  */
  #include <stddef.h>
  
  /* MirBSD defines mbslen as a macro.  */
  #if 0 && defined __MirBSD__
  # include <wchar.h>
  #endif
  
  /* The __attribute__ feature is available in gcc versions 2.5 and later.
     The attribute __pure__ was added in gcc 2.96.  */
  #if __GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 96)
  # define _GL_ATTRIBUTE_PURE __attribute__ ((__pure__))
  #else
  # define _GL_ATTRIBUTE_PURE /* empty */
  #endif
  
  /* NetBSD 5.0 declares strsignal in <unistd.h>, not in <string.h>.  */
  /* But in any case avoid namespace pollution on glibc systems.  */
  #if (0 || defined GNULIB_POSIXCHECK) && defined __NetBSD__ \
      && ! defined __GLIBC__
  # include <unistd.h>
  #endif
  
  /* The definitions of _GL_FUNCDECL_RPL etc. are copied here.  */
  #ifndef _GL_CXXDEFS_H
  #define _GL_CXXDEFS_H
  
  /* The three most frequent use cases of these macros are:
  
     * For providing a substitute for a function that is missing on some
       platforms, but is declared and works fine on the platforms on which
       it exists:
  
         #if @GNULIB_FOO@
         # if !@HAVE_FOO@
         _GL_FUNCDECL_SYS (foo, ...);
         # endif
         _GL_CXXALIAS_SYS (foo, ...);
         _GL_CXXALIASWARN (foo);
         #elif defined GNULIB_POSIXCHECK
         ...
         #endif
  
     * For providing a replacement for a function that exists on all platforms,
       but is broken/insufficient and needs to be replaced on some platforms:
  
         #if @GNULIB_FOO@
         # if @REPLACE_FOO@
         #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
         #   undef foo
         #   define foo rpl_foo
         #  endif
         _GL_FUNCDECL_RPL (foo, ...);
         _GL_CXXALIAS_RPL (foo, ...);
         # else
         _GL_CXXALIAS_SYS (foo, ...);
         # endif
         _GL_CXXALIASWARN (foo);
         #elif defined GNULIB_POSIXCHECK
         ...
         #endif
  
     * For providing a replacement for a function that exists on some platforms
       but is broken/insufficient and needs to be replaced on some of them and
       is additionally either missing or undeclared on some other platforms:
  
         #if @GNULIB_FOO@
         # if @REPLACE_FOO@
         #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
         #   undef foo
         #   define foo rpl_foo
         #  endif
         _GL_FUNCDECL_RPL (foo, ...);
         _GL_CXXALIAS_RPL (foo, ...);
         # else
         #  if !@HAVE_FOO@   or   if !@HAVE_DECL_FOO@
         _GL_FUNCDECL_SYS (foo, ...);
         #  endif
         _GL_CXXALIAS_SYS (foo, ...);
         # endif
         _GL_CXXALIASWARN (foo);
         #elif defined GNULIB_POSIXCHECK
         ...
         #endif
  */
  
  /* _GL_EXTERN_C declaration;
     performs the declaration with C linkage.  */
  #if defined __cplusplus
  # define _GL_EXTERN_C extern "C"
  #else
  # define _GL_EXTERN_C extern
  #endif
  
  /* _GL_FUNCDECL_RPL (func, rettype, parameters_and_attributes);
     declares a replacement function, named rpl_func, with the given prototype,
     consisting of return type, parameters, and attributes.
     Example:
       _GL_FUNCDECL_RPL (open, int, (const char *filename, int flags, ...)
                                    _GL_ARG_NONNULL ((1)));
   */
  #define _GL_FUNCDECL_RPL(func,rettype,parameters_and_attributes) \
    _GL_FUNCDECL_RPL_1 (rpl_##func, rettype, parameters_and_attributes)
  #define _GL_FUNCDECL_RPL_1(rpl_func,rettype,parameters_and_attributes) \
    _GL_EXTERN_C rettype rpl_func parameters_and_attributes
  
  /* _GL_FUNCDECL_SYS (func, rettype, parameters_and_attributes);
     declares the system function, named func, with the given prototype,
     consisting of return type, parameters, and attributes.
     Example:
       _GL_FUNCDECL_SYS (open, int, (const char *filename, int flags, ...)
                                    _GL_ARG_NONNULL ((1)));
   */
  #define _GL_FUNCDECL_SYS(func,rettype,parameters_and_attributes) \
    _GL_EXTERN_C rettype func parameters_and_attributes
  
  /* _GL_CXXALIAS_RPL (func, rettype, parameters);
     declares a C++ alias called GNULIB_NAMESPACE::func
     that redirects to rpl_func, if GNULIB_NAMESPACE is defined.
     Example:
       _GL_CXXALIAS_RPL (open, int, (const char *filename, int flags, ...));
   */
  #define _GL_CXXALIAS_RPL(func,rettype,parameters) \
    _GL_CXXALIAS_RPL_1 (func, rpl_##func, rettype, parameters)
  #if defined __cplusplus && defined GNULIB_NAMESPACE
  # define _GL_CXXALIAS_RPL_1(func,rpl_func,rettype,parameters) \
      namespace GNULIB_NAMESPACE                                \
      {                                                         \
        rettype (*const func) parameters = ::rpl_func;          \
      }                                                         \
      _GL_EXTERN_C int _gl_cxxalias_dummy
  #else
  # define _GL_CXXALIAS_RPL_1(func,rpl_func,rettype,parameters) \
      _GL_EXTERN_C int _gl_cxxalias_dummy
  #endif
  
  /* _GL_CXXALIAS_RPL_CAST_1 (func, rpl_func, rettype, parameters);
     is like  _GL_CXXALIAS_RPL_1 (func, rpl_func, rettype, parameters);
     except that the C function rpl_func may have a slightly different
     declaration.  A cast is used to silence the "invalid conversion" error
     that would otherwise occur.  */
  #if defined __cplusplus && defined GNULIB_NAMESPACE
  # define _GL_CXXALIAS_RPL_CAST_1(func,rpl_func,rettype,parameters) \
      namespace GNULIB_NAMESPACE                                     \
      {                                                              \
        rettype (*const func) parameters =                           \
          reinterpret_cast<rettype(*)parameters>(::rpl_func);        \
      }                                                              \
      _GL_EXTERN_C int _gl_cxxalias_dummy
  #else
  # define _GL_CXXALIAS_RPL_CAST_1(func,rpl_func,rettype,parameters) \
      _GL_EXTERN_C int _gl_cxxalias_dummy
  #endif
  
  /* _GL_CXXALIAS_SYS (func, rettype, parameters);
     declares a C++ alias called GNULIB_NAMESPACE::func
     that redirects to the system provided function func, if GNULIB_NAMESPACE
     is defined.
     Example:
       _GL_CXXALIAS_SYS (open, int, (const char *filename, int flags, ...));
   */
  #if defined __cplusplus && defined GNULIB_NAMESPACE
    /* If we were to write
         rettype (*const func) parameters = ::func;
       like above in _GL_CXXALIAS_RPL_1, the compiler could optimize calls
       better (remove an indirection through a 'static' pointer variable),
       but then the _GL_CXXALIASWARN macro below would cause a warning not only
       for uses of ::func but also for uses of GNULIB_NAMESPACE::func.  */
  # define _GL_CXXALIAS_SYS(func,rettype,parameters) \
      namespace GNULIB_NAMESPACE                     \
      {                                              \
        static rettype (*func) parameters = ::func;  \
      }                                              \
      _GL_EXTERN_C int _gl_cxxalias_dummy
  #else
  # define _GL_CXXALIAS_SYS(func,rettype,parameters) \
      _GL_EXTERN_C int _gl_cxxalias_dummy
  #endif
  
  /* _GL_CXXALIAS_SYS_CAST (func, rettype, parameters);
     is like  _GL_CXXALIAS_SYS (func, rettype, parameters);
     except that the C function func may have a slightly different declaration.
     A cast is used to silence the "invalid conversion" error that would
     otherwise occur.  */
  #if defined __cplusplus && defined GNULIB_NAMESPACE
  # define _GL_CXXALIAS_SYS_CAST(func,rettype,parameters) \
      namespace GNULIB_NAMESPACE                          \
      {                                                   \
        static rettype (*func) parameters =               \
          reinterpret_cast<rettype(*)parameters>(::func); \
      }                                                   \
      _GL_EXTERN_C int _gl_cxxalias_dummy
  #else
  # define _GL_CXXALIAS_SYS_CAST(func,rettype,parameters) \
      _GL_EXTERN_C int _gl_cxxalias_dummy
  #endif
  
  /* _GL_CXXALIAS_SYS_CAST2 (func, rettype, parameters, rettype2, parameters2);
     is like  _GL_CXXALIAS_SYS (func, rettype, parameters);
     except that the C function is picked among a set of overloaded functions,
     namely the one with rettype2 and parameters2.  Two consecutive casts
     are used to silence the "cannot find a match" and "invalid conversion"
     errors that would otherwise occur.  */
  #if defined __cplusplus && defined GNULIB_NAMESPACE
    /* The outer cast must be a reinterpret_cast.
       The inner cast: When the function is defined as a set of overloaded
       functions, it works as a static_cast<>, choosing the designated variant.
       When the function is defined as a single variant, it works as a
       reinterpret_cast<>. The parenthesized cast syntax works both ways.  */
  # define _GL_CXXALIAS_SYS_CAST2(func,rettype,parameters,rettype2,parameters2) \
      namespace GNULIB_NAMESPACE                                                \
      {                                                                         \
        static rettype (*func) parameters =                                     \
          reinterpret_cast<rettype(*)parameters>(                               \
            (rettype2(*)parameters2)(::func));                                  \
      }                                                                         \
      _GL_EXTERN_C int _gl_cxxalias_dummy
  #else
  # define _GL_CXXALIAS_SYS_CAST2(func,rettype,parameters,rettype2,parameters2) \
      _GL_EXTERN_C int _gl_cxxalias_dummy
  #endif
  
  /* _GL_CXXALIASWARN (func);
     causes a warning to be emitted when ::func is used but not when
     GNULIB_NAMESPACE::func is used.  func must be defined without overloaded
     variants.  */
  #if defined __cplusplus && defined GNULIB_NAMESPACE
  # define _GL_CXXALIASWARN(func) \
     _GL_CXXALIASWARN_1 (func, GNULIB_NAMESPACE)
  # define _GL_CXXALIASWARN_1(func,namespace) \
     _GL_CXXALIASWARN_2 (func, namespace)
  /* To work around GCC bug <http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43881>,
     we enable the warning only when not optimizing.  */
  # if !__OPTIMIZE__
  #  define _GL_CXXALIASWARN_2(func,namespace) \
      _GL_WARN_ON_USE (func, \
                       "The symbol ::" #func " refers to the system function. " \
                       "Use " #namespace "::" #func " instead.")
  # elif __GNUC__ >= 3 && GNULIB_STRICT_CHECKING
  #  define _GL_CXXALIASWARN_2(func,namespace) \
       extern __typeof__ (func) func
  # else
  #  define _GL_CXXALIASWARN_2(func,namespace) \
       _GL_EXTERN_C int _gl_cxxalias_dummy
  # endif
  #else
  # define _GL_CXXALIASWARN(func) \
      _GL_EXTERN_C int _gl_cxxalias_dummy
  #endif
  
  /* _GL_CXXALIASWARN1 (func, rettype, parameters_and_attributes);
     causes a warning to be emitted when the given overloaded variant of ::func
     is used but not when GNULIB_NAMESPACE::func is used.  */
  #if defined __cplusplus && defined GNULIB_NAMESPACE
  # define _GL_CXXALIASWARN1(func,rettype,parameters_and_attributes) \
     _GL_CXXALIASWARN1_1 (func, rettype, parameters_and_attributes, \
                          GNULIB_NAMESPACE)
  # define _GL_CXXALIASWARN1_1(func,rettype,parameters_and_attributes,namespace) \
     _GL_CXXALIASWARN1_2 (func, rettype, parameters_and_attributes, namespace)
  /* To work around GCC bug <http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43881>,
     we enable the warning only when not optimizing.  */
  # if !__OPTIMIZE__
  #  define _GL_CXXALIASWARN1_2(func,rettype,parameters_and_attributes,namespace) \
      _GL_WARN_ON_USE_CXX (func, rettype, parameters_and_attributes, \
                           "The symbol ::" #func " refers to the system function. " \
                           "Use " #namespace "::" #func " instead.")
  # elif __GNUC__ >= 3 && GNULIB_STRICT_CHECKING
  #  define _GL_CXXALIASWARN1_2(func,rettype,parameters_and_attributes,namespace) \
       extern __typeof__ (func) func
  # else
  #  define _GL_CXXALIASWARN1_2(func,rettype,parameters_and_attributes,namespace) \
       _GL_EXTERN_C int _gl_cxxalias_dummy
  # endif
  #else
  # define _GL_CXXALIASWARN1(func,rettype,parameters_and_attributes) \
      _GL_EXTERN_C int _gl_cxxalias_dummy
  #endif
  
  #endif /* _GL_CXXDEFS_H */
  
  /* The definition of _GL_ARG_NONNULL is copied here.  */
  /* _GL_ARG_NONNULL((n,...,m)) tells the compiler and static analyzer tools
     that the values passed as arguments n, ..., m must be non-NULL pointers.
     n = 1 stands for the first argument, n = 2 for the second argument etc.  */
  #ifndef _GL_ARG_NONNULL
  # if (__GNUC__ == 3 && __GNUC_MINOR__ >= 3) || __GNUC__ > 3
  #  define _GL_ARG_NONNULL(params) __attribute__ ((__nonnull__ params))
  # else
  #  define _GL_ARG_NONNULL(params)
  # endif
  #endif
  
  /* The definition of _GL_WARN_ON_USE is copied here.  */
  #ifndef _GL_WARN_ON_USE
  
  # if 4 < __GNUC__ || (__GNUC__ == 4 && 3 <= __GNUC_MINOR__)
  /* A compiler attribute is available in gcc versions 4.3.0 and later.  */
  #  define _GL_WARN_ON_USE(function, message) \
  extern __typeof__ (function) function __attribute__ ((__warning__ (message)))
  # elif __GNUC__ >= 3 && GNULIB_STRICT_CHECKING
  /* Verify the existence of the function.  */
  #  define _GL_WARN_ON_USE(function, message) \
  extern __typeof__ (function) function
  # else /* Unsupported.  */
  #  define _GL_WARN_ON_USE(function, message) \
  _GL_WARN_EXTERN_C int _gl_warn_on_use
  # endif
  #endif
  
  /* _GL_WARN_ON_USE_CXX (function, rettype, parameters_and_attributes, "string")
     is like _GL_WARN_ON_USE (function, "string"), except that the function is
     declared with the given prototype, consisting of return type, parameters,
     and attributes.
     This variant is useful for overloaded functions in C++. _GL_WARN_ON_USE does
     not work in this case.  */
  #ifndef _GL_WARN_ON_USE_CXX
  # if 4 < __GNUC__ || (__GNUC__ == 4 && 3 <= __GNUC_MINOR__)
  #  define _GL_WARN_ON_USE_CXX(function,rettype,parameters_and_attributes,msg) \
  extern rettype function parameters_and_attributes \
       __attribute__ ((__warning__ (msg)))
  # elif __GNUC__ >= 3 && GNULIB_STRICT_CHECKING
  /* Verify the existence of the function.  */
  #  define _GL_WARN_ON_USE_CXX(function,rettype,parameters_and_attributes,msg) \
  extern rettype function parameters_and_attributes
  # else /* Unsupported.  */
  #  define _GL_WARN_ON_USE_CXX(function,rettype,parameters_and_attributes,msg) \
  _GL_WARN_EXTERN_C int _gl_warn_on_use
  # endif
  #endif
  
  /* _GL_WARN_EXTERN_C declaration;
     performs the declaration with C linkage.  */
  #ifndef _GL_WARN_EXTERN_C
  # if defined __cplusplus
  #  define _GL_WARN_EXTERN_C extern "C"
  # else
  #  define _GL_WARN_EXTERN_C extern
  # endif
  #endif
  
  
  /* Find the index of the least-significant set bit.  */
  #if 0
  # if !1
  _GL_FUNCDECL_SYS (ffsl, int, (long int i));
  # endif
  _GL_CXXALIAS_SYS (ffsl, int, (long int i));
  _GL_CXXALIASWARN (ffsl);
  #elif defined GNULIB_POSIXCHECK
  # undef ffsl
  # if HAVE_RAW_DECL_FFSL
  _GL_WARN_ON_USE (ffsl, "ffsl is not portable - use the ffsl module");
  # endif
  #endif
  
  
  /* Find the index of the least-significant set bit.  */
  #if 0
  # if !1
  _GL_FUNCDECL_SYS (ffsll, int, (long long int i));
  # endif
  _GL_CXXALIAS_SYS (ffsll, int, (long long int i));
  _GL_CXXALIASWARN (ffsll);
  #elif defined GNULIB_POSIXCHECK
  # undef ffsll
  # if HAVE_RAW_DECL_FFSLL
  _GL_WARN_ON_USE (ffsll, "ffsll is not portable - use the ffsll module");
  # endif
  #endif
  
  
  /* Return the first instance of C within N bytes of S, or NULL.  */
  #if 0
  # if 0
  #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
  #   define memchr rpl_memchr
  #  endif
  _GL_FUNCDECL_RPL (memchr, void *, (void const *__s, int __c, size_t __n)
                                    _GL_ATTRIBUTE_PURE
                                    _GL_ARG_NONNULL ((1)));
  _GL_CXXALIAS_RPL (memchr, void *, (void const *__s, int __c, size_t __n));
  # else
  #  if ! 1
  _GL_FUNCDECL_SYS (memchr, void *, (void const *__s, int __c, size_t __n)
                                    _GL_ATTRIBUTE_PURE
                                    _GL_ARG_NONNULL ((1)));
  #  endif
    /* On some systems, this function is defined as an overloaded function:
         extern "C" { const void * std::memchr (const void *, int, size_t); }
         extern "C++" { void * std::memchr (void *, int, size_t); }  */
  _GL_CXXALIAS_SYS_CAST2 (memchr,
                          void *, (void const *__s, int __c, size_t __n),
                          void const *, (void const *__s, int __c, size_t __n));
  # endif
  # if ((__GLIBC__ == 2 && __GLIBC_MINOR__ >= 10) && !defined __UCLIBC__) \
       && (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 4))
  _GL_CXXALIASWARN1 (memchr, void *, (void *__s, int __c, size_t __n));
  _GL_CXXALIASWARN1 (memchr, void const *,
                     (void const *__s, int __c, size_t __n));
  # else
  _GL_CXXALIASWARN (memchr);
  # endif
  #elif defined GNULIB_POSIXCHECK
  # undef memchr
  /* Assume memchr is always declared.  */
  _GL_WARN_ON_USE (memchr, "memchr has platform-specific bugs - "
                   "use gnulib module memchr for portability" );
  #endif
  
  /* Return the first occurrence of NEEDLE in HAYSTACK.  */
  #if 0
  # if 0
  #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
  #   define memmem rpl_memmem
  #  endif
  _GL_FUNCDECL_RPL (memmem, void *,
                    (void const *__haystack, size_t __haystack_len,
                     void const *__needle, size_t __needle_len)
                    _GL_ATTRIBUTE_PURE
                    _GL_ARG_NONNULL ((1, 3)));
  _GL_CXXALIAS_RPL (memmem, void *,
                    (void const *__haystack, size_t __haystack_len,
                     void const *__needle, size_t __needle_len));
  # else
  #  if ! 1
  _GL_FUNCDECL_SYS (memmem, void *,
                    (void const *__haystack, size_t __haystack_len,
                     void const *__needle, size_t __needle_len)
                    _GL_ATTRIBUTE_PURE
                    _GL_ARG_NONNULL ((1, 3)));
  #  endif
  _GL_CXXALIAS_SYS (memmem, void *,
                    (void const *__haystack, size_t __haystack_len,
                     void const *__needle, size_t __needle_len));
  # endif
  _GL_CXXALIASWARN (memmem);
  #elif defined GNULIB_POSIXCHECK
  # undef memmem
  # if HAVE_RAW_DECL_MEMMEM
  _GL_WARN_ON_USE (memmem, "memmem is unportable and often quadratic - "
                   "use gnulib module memmem-simple for portability, "
                   "and module memmem for speed" );
  # endif
  #endif
  
  /* Copy N bytes of SRC to DEST, return pointer to bytes after the
     last written byte.  */
  #if 0
  # if ! 1
  _GL_FUNCDECL_SYS (mempcpy, void *,
                    (void *restrict __dest, void const *restrict __src,
                     size_t __n)
                    _GL_ARG_NONNULL ((1, 2)));
  # endif
  _GL_CXXALIAS_SYS (mempcpy, void *,
                    (void *restrict __dest, void const *restrict __src,
                     size_t __n));
  _GL_CXXALIASWARN (mempcpy);
  #elif defined GNULIB_POSIXCHECK
  # undef mempcpy
  # if HAVE_RAW_DECL_MEMPCPY
  _GL_WARN_ON_USE (mempcpy, "mempcpy is unportable - "
                   "use gnulib module mempcpy for portability");
  # endif
  #endif
  
  /* Search backwards through a block for a byte (specified as an int).  */
  #if 0
  # if ! 1
  _GL_FUNCDECL_SYS (memrchr, void *, (void const *, int, size_t)
                                     _GL_ATTRIBUTE_PURE
                                     _GL_ARG_NONNULL ((1)));
  # endif
    /* On some systems, this function is defined as an overloaded function:
         extern "C++" { const void * std::memrchr (const void *, int, size_t); }
         extern "C++" { void * std::memrchr (void *, int, size_t); }  */
  _GL_CXXALIAS_SYS_CAST2 (memrchr,
                          void *, (void const *, int, size_t),
                          void const *, (void const *, int, size_t));
  # if ((__GLIBC__ == 2 && __GLIBC_MINOR__ >= 10) && !defined __UCLIBC__) \
       && (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 4))
  _GL_CXXALIASWARN1 (memrchr, void *, (void *, int, size_t));
  _GL_CXXALIASWARN1 (memrchr, void const *, (void const *, int, size_t));
  # else
  _GL_CXXALIASWARN (memrchr);
  # endif
  #elif defined GNULIB_POSIXCHECK
  # undef memrchr
  # if HAVE_RAW_DECL_MEMRCHR
  _GL_WARN_ON_USE (memrchr, "memrchr is unportable - "
                   "use gnulib module memrchr for portability");
  # endif
  #endif
  
  /* Find the first occurrence of C in S.  More efficient than
     memchr(S,C,N), at the expense of undefined behavior if C does not
     occur within N bytes.  */
  #if 0
  # if ! 1
  _GL_FUNCDECL_SYS (rawmemchr, void *, (void 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 void * std::rawmemchr (const void *, int); }
         extern "C++" { void * std::rawmemchr (void *, int); }  */
  _GL_CXXALIAS_SYS_CAST2 (rawmemchr,
                          void *, (void const *__s, int __c_in),
                          void const *, (void const *__s, int __c_in));
  # if ((__GLIBC__ == 2 && __GLIBC_MINOR__ >= 10) && !defined __UCLIBC__) \
       && (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 4))
  _GL_CXXALIASWARN1 (rawmemchr, void *, (void *__s, int __c_in));
  _GL_CXXALIASWARN1 (rawmemchr, void const *, (void const *__s, int __c_in));
  # else
  _GL_CXXALIASWARN (rawmemchr);
  # endif
  #elif defined GNULIB_POSIXCHECK
  # undef rawmemchr
  # if HAVE_RAW_DECL_RAWMEMCHR
  _GL_WARN_ON_USE (rawmemchr, "rawmemchr is unportable - "
                   "use gnulib module rawmemchr for portability");
  # endif
  #endif
  
  /* Copy SRC to DST, returning the address of the terminating '\0' in DST.  */
  #if 0
  # if ! 1
  _GL_FUNCDECL_SYS (stpcpy, char *,
                    (char *restrict __dst, char const *restrict __src)
                    _GL_ARG_NONNULL ((1, 2)));
  # endif
  _GL_CXXALIAS_SYS (stpcpy, char *,
                    (char *restrict __dst, char const *restrict __src));
  _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 0
  # if 0
  #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
  #   undef stpncpy
  #   define stpncpy rpl_stpncpy
  #  endif
  _GL_FUNCDECL_RPL (stpncpy, char *,
                    (char *restrict __dst, char const *restrict __src,
                     size_t __n)
                    _GL_ARG_NONNULL ((1, 2)));
  _GL_CXXALIAS_RPL (stpncpy, char *,
                    (char *restrict __dst, char const *restrict __src,
                     size_t __n));
  # else
  #  if ! 1
  _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 0
  # if 0
  #  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 ! 1
  _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 0
  # if 0
  #  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 !(1 || 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 0
  # if 0
  #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
  #   undef strncat
  #   define strncat rpl_strncat
  #  endif
  _GL_FUNCDECL_RPL (strncat, char *, (char *dest, const char *src, size_t n)
                                     _GL_ARG_NONNULL ((1, 2)));
  _GL_CXXALIAS_RPL (strncat, char *, (char *dest, const char *src, size_t n));
  # else
  _GL_CXXALIAS_SYS (strncat, char *, (char *dest, const char *src, size_t n));
  # endif
  _GL_CXXALIASWARN (strncat);
  #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 0
  # if 0
  #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
  #   undef strndup
  #   define strndup rpl_strndup
  #  endif
  _GL_FUNCDECL_RPL (strndup, char *, (char const *__string, size_t __n)
                                     _GL_ARG_NONNULL ((1)));
  _GL_CXXALIAS_RPL (strndup, char *, (char const *__string, size_t __n));
  # else
  #  if ! 1
  _GL_FUNCDECL_SYS (strndup, char *, (char const *__string, size_t __n)
                                     _GL_ARG_NONNULL ((1)));
  #  endif
  _GL_CXXALIAS_SYS (strndup, char *, (char const *__string, 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 0
  # if 0
  #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
  #   undef strnlen
  #   define strnlen rpl_strnlen
  #  endif
  _GL_FUNCDECL_RPL (strnlen, size_t, (char const *__string, size_t __maxlen)
                                     _GL_ATTRIBUTE_PURE
                                     _GL_ARG_NONNULL ((1)));
  _GL_CXXALIAS_RPL (strnlen, size_t, (char const *__string, size_t __maxlen));
  # else
  #  if ! 1
  _GL_FUNCDECL_SYS (strnlen, size_t, (char const *__string, size_t __maxlen)
                                     _GL_ATTRIBUTE_PURE
                                     _GL_ARG_NONNULL ((1)));
  #  endif
  _GL_CXXALIAS_SYS (strnlen, size_t, (char const *__string, 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 0
  # if ! 1
  _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));
  # 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 0
  # if ! 1
  _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 0
  # if 0
  #  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 0
  # if 0
  #  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 ! 1
  _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 0
  # if 0
  #  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 0 || defined GNULIB_POSIXCHECK
  #   undef strtok_r
  #  endif
  #  if ! 1
  _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 0
  /* 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 0  /* 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 0
  /* 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 0
  /* 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 0
  /* 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 0
  /* 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 0
  /* 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 0
  /* 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 0
  /* 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 0
  /* 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 0
  /* 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 0
  /* 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 0
  /* 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 0
  /* 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 0
  /* 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 1
  # if 1
  #  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 0
  # if 0
  #  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 !1
  _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 1
  _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 0
  # if 0
  #  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 ! 1
  _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 0
  # if !1
  _GL_FUNCDECL_SYS (strverscmp, int, (const char *, const char *)
                                     _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 /* _GL_STRING_H */
  #endif /* _GL_STRING_H */
  