/* A substitute for ISO C99 <wchar.h>, for platforms that have issues.

   Copyright (C) 2007-2020 Free Software Foundation, Inc.

   This program is free software; you can redistribute it and/or modify

   it under the terms of the GNU Lesser General Public License as published by

   the Free Software Foundation; either version 2.1, 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 Lesser General Public License for more details.

   You should have received a copy of the GNU Lesser General Public License

   along with this program; if not, see <https://www.gnu.org/licenses/>.  */

/* Written by Eric Blake.  */

/*

 * ISO C 99 <wchar.h> for platforms that have issues.

 * <https://pubs.opengroup.org/onlinepubs/9699919799/basedefs/wchar.h.html>

 *

 * For now, this just ensures proper prerequisite inclusion order and

 * the declaration of wcwidth().

 */

#if __GNUC__ >= 3

@PRAGMA_SYSTEM_HEADER@

#endif

@PRAGMA_COLUMNS@

#if (((defined __need_mbstate_t || defined __need_wint_t)               \

      && !defined __MINGW32__)                                          \

     || (defined __hpux                                                 \

         && ((defined _INTTYPES_INCLUDED                                \

              && !defined _GL_FINISHED_INCLUDING_SYSTEM_INTTYPES_H)     \

             || defined _GL_JUST_INCLUDE_SYSTEM_WCHAR_H))               \

     || (defined __MINGW32__ && defined __STRING_H_SOURCED__)           \

     || defined _GL_ALREADY_INCLUDING_WCHAR_H)

/* Special invocation convention:

   - Inside glibc and uClibc header files, but not MinGW.

   - On HP-UX 11.00 we have a sequence of nested includes

     <wchar.h> -> <stdlib.h> -> <stdint.h>, and the latter includes <wchar.h>,

     once indirectly <stdint.h> -> <sys/types.h> -> <inttypes.h> -> <wchar.h>

     and once directly.  In both situations 'wint_t' is not yet defined,

     therefore we cannot provide the function overrides; instead include only

     the system's <wchar.h>.

   - With MinGW 3.22, when <string.h> includes <wchar.h>, only some part of

     <wchar.h> is actually processed, and that doesn't include 'mbstate_t'.

   - On IRIX 6.5, similarly, we have an include <wchar.h> -> <wctype.h>, and

     the latter includes <wchar.h>.  But here, we have no way to detect whether

     <wctype.h> is completely included or is still being included.  */

#@INCLUDE_NEXT@ @NEXT_WCHAR_H@

#else

/* Normal invocation convention.  */

#ifndef _@GUARD_PREFIX@_WCHAR_H

#define _GL_ALREADY_INCLUDING_WCHAR_H

#if @HAVE_FEATURES_H@

# include <features.h> /* for __GLIBC__ */

#endif

/* Tru64 with Desktop Toolkit C has a bug: <stdio.h> must be included before

   <wchar.h>.

   BSD/OS 4.0.1 has a bug: <stddef.h>, <stdio.h> and <time.h> must be

   included before <wchar.h>.

   In some builds of uClibc, <wchar.h> is nonexistent and wchar_t is defined

   by <stddef.h>.

   But avoid namespace pollution on glibc systems.  */

#if !(defined __GLIBC__ && !defined __UCLIBC__)

# include <stddef.h>

#endif

#ifndef __GLIBC__

# include <stdio.h>

# include <time.h>

#endif

/* Include the original <wchar.h> if it exists.

   Some builds of uClibc lack it.  */

/* The include_next requires a split double-inclusion guard.  */

#if @HAVE_WCHAR_H@

# @INCLUDE_NEXT@ @NEXT_WCHAR_H@

#endif

#undef _GL_ALREADY_INCLUDING_WCHAR_H

#ifndef _@GUARD_PREFIX@_WCHAR_H

#define _@GUARD_PREFIX@_WCHAR_H

/* The __attribute__ feature is available in gcc versions 2.5 and later.

   The attribute __pure__ was added in gcc 2.96.  */

#ifndef _GL_ATTRIBUTE_PURE

# if __GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 96)

#  define _GL_ATTRIBUTE_PURE __attribute__ ((__pure__))

# else

#  define _GL_ATTRIBUTE_PURE /* empty */

# endif

#endif

/* The definitions of _GL_FUNCDECL_RPL etc. are copied here.  */

/* The definition of _GL_ARG_NONNULL is copied here.  */

/* The definition of _GL_WARN_ON_USE is copied here.  */

/* Define wint_t and WEOF.  (Also done in wctype.in.h.)  */

#if !@HAVE_WINT_T@ && !defined wint_t

# define wint_t int

# ifndef WEOF

#  define WEOF -1

# endif

#else

/* mingw and MSVC define wint_t as 'unsigned short' in <crtdefs.h> or

   <stddef.h>.  This is too small: ISO C 99 section 7.24.1.(2) says that

   wint_t must be "unchanged by default argument promotions".  Override it.  */

# if @GNULIB_OVERRIDES_WINT_T@

#  if !GNULIB_defined_wint_t

#   if @HAVE_CRTDEFS_H@

#    include <crtdefs.h>

#   else

#    include <stddef.h>

#   endif

typedef unsigned int rpl_wint_t;

#   undef wint_t

#   define wint_t rpl_wint_t

#   define GNULIB_defined_wint_t 1

#  endif

# endif

# ifndef WEOF

#  define WEOF ((wint_t) -1)

# endif

#endif

/* Override mbstate_t if it is too small.

   On IRIX 6.5, sizeof (mbstate_t) == 1, which is not sufficient for

   implementing mbrtowc for encodings like UTF-8.

   On AIX and MSVC, mbrtowc needs to be overridden, but mbstate_t exists and is

   large enough and overriding it would cause problems in C++ mode.  */

#if !(((defined _WIN32 && !defined __CYGWIN__) || @HAVE_MBSINIT@) && @HAVE_MBRTOWC@) || @REPLACE_MBSTATE_T@

# if !GNULIB_defined_mbstate_t

#  if !(defined _AIX || defined _MSC_VER)

typedef int rpl_mbstate_t;

#   undef mbstate_t

#   define mbstate_t rpl_mbstate_t

#  endif

#  define GNULIB_defined_mbstate_t 1

# endif

#endif

/* Convert a single-byte character to a wide character.  */

#if @GNULIB_BTOWC@

# if @REPLACE_BTOWC@

#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)

#   undef btowc

#   define btowc rpl_btowc

#  endif

_GL_FUNCDECL_RPL (btowc, wint_t, (int c) _GL_ATTRIBUTE_PURE);

_GL_CXXALIAS_RPL (btowc, wint_t, (int c));

# else

#  if !@HAVE_BTOWC@

_GL_FUNCDECL_SYS (btowc, wint_t, (int c) _GL_ATTRIBUTE_PURE);

#  endif

/* Need to cast, because on mingw, the return type is 'unsigned short'.  */

_GL_CXXALIAS_SYS_CAST (btowc, wint_t, (int c));

# endif

# if __GLIBC__ >= 2

_GL_CXXALIASWARN (btowc);

# endif

#elif defined GNULIB_POSIXCHECK

# undef btowc

# if HAVE_RAW_DECL_BTOWC

_GL_WARN_ON_USE (btowc, "btowc is unportable - "

                 "use gnulib module btowc for portability");

# endif

#endif

/* Convert a wide character to a single-byte character.  */

#if @GNULIB_WCTOB@

# if @REPLACE_WCTOB@

#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)

#   undef wctob

#   define wctob rpl_wctob

#  endif

_GL_FUNCDECL_RPL (wctob, int, (wint_t wc) _GL_ATTRIBUTE_PURE);

_GL_CXXALIAS_RPL (wctob, int, (wint_t wc));

# else

#  if !defined wctob && !@HAVE_DECL_WCTOB@

/* wctob is provided by gnulib, or wctob exists but is not declared.  */

_GL_FUNCDECL_SYS (wctob, int, (wint_t wc) _GL_ATTRIBUTE_PURE);

#  endif

_GL_CXXALIAS_SYS (wctob, int, (wint_t wc));

# endif

# if __GLIBC__ >= 2

_GL_CXXALIASWARN (wctob);

# endif

#elif defined GNULIB_POSIXCHECK

# undef wctob

# if HAVE_RAW_DECL_WCTOB

_GL_WARN_ON_USE (wctob, "wctob is unportable - "

                 "use gnulib module wctob for portability");

# endif

#endif

/* Test whether *PS is in the initial state.  */

#if @GNULIB_MBSINIT@

# if @REPLACE_MBSINIT@

#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)

#   undef mbsinit

#   define mbsinit rpl_mbsinit

#  endif

_GL_FUNCDECL_RPL (mbsinit, int, (const mbstate_t *ps));

_GL_CXXALIAS_RPL (mbsinit, int, (const mbstate_t *ps));

# else

#  if !@HAVE_MBSINIT@

_GL_FUNCDECL_SYS (mbsinit, int, (const mbstate_t *ps));

#  endif

_GL_CXXALIAS_SYS (mbsinit, int, (const mbstate_t *ps));

# endif

# if __GLIBC__ >= 2

_GL_CXXALIASWARN (mbsinit);

# endif

#elif defined GNULIB_POSIXCHECK

# undef mbsinit

# if HAVE_RAW_DECL_MBSINIT

_GL_WARN_ON_USE (mbsinit, "mbsinit is unportable - "

                 "use gnulib module mbsinit for portability");

# endif

#endif

/* Convert a multibyte character to a wide character.  */

#if @GNULIB_MBRTOWC@

# if @REPLACE_MBRTOWC@

#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)

#   undef mbrtowc

#   define mbrtowc rpl_mbrtowc

#  endif

_GL_FUNCDECL_RPL (mbrtowc, size_t,

                  (wchar_t *restrict pwc, const char *restrict s, size_t n,

                   mbstate_t *restrict ps));

_GL_CXXALIAS_RPL (mbrtowc, size_t,

                  (wchar_t *restrict pwc, const char *restrict s, size_t n,

                   mbstate_t *restrict ps));

# else

#  if !@HAVE_MBRTOWC@

_GL_FUNCDECL_SYS (mbrtowc, size_t,

                  (wchar_t *restrict pwc, const char *restrict s, size_t n,

                   mbstate_t *restrict ps));

#  endif

_GL_CXXALIAS_SYS (mbrtowc, size_t,

                  (wchar_t *restrict pwc, const char *restrict s, size_t n,

                   mbstate_t *restrict ps));

# endif

# if __GLIBC__ >= 2

_GL_CXXALIASWARN (mbrtowc);

# endif

#elif defined GNULIB_POSIXCHECK

# undef mbrtowc

# if HAVE_RAW_DECL_MBRTOWC

_GL_WARN_ON_USE (mbrtowc, "mbrtowc is unportable - "

                 "use gnulib module mbrtowc for portability");

# endif

#endif

/* Recognize a multibyte character.  */

#if @GNULIB_MBRLEN@

# if @REPLACE_MBRLEN@

#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)

#   undef mbrlen

#   define mbrlen rpl_mbrlen

#  endif

_GL_FUNCDECL_RPL (mbrlen, size_t,

                  (const char *restrict s, size_t n, mbstate_t *restrict ps));

_GL_CXXALIAS_RPL (mbrlen, size_t,

                  (const char *restrict s, size_t n, mbstate_t *restrict ps));

# else

#  if !@HAVE_MBRLEN@

_GL_FUNCDECL_SYS (mbrlen, size_t,

                  (const char *restrict s, size_t n, mbstate_t *restrict ps));

#  endif

_GL_CXXALIAS_SYS (mbrlen, size_t,

                  (const char *restrict s, size_t n, mbstate_t *restrict ps));

# endif

# if __GLIBC__ >= 2

_GL_CXXALIASWARN (mbrlen);

# endif

#elif defined GNULIB_POSIXCHECK

# undef mbrlen

# if HAVE_RAW_DECL_MBRLEN

_GL_WARN_ON_USE (mbrlen, "mbrlen is unportable - "

                 "use gnulib module mbrlen for portability");

# endif

#endif

/* Convert a string to a wide string.  */

#if @GNULIB_MBSRTOWCS@

# if @REPLACE_MBSRTOWCS@

#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)

#   undef mbsrtowcs

#   define mbsrtowcs rpl_mbsrtowcs

#  endif

_GL_FUNCDECL_RPL (mbsrtowcs, size_t,

                  (wchar_t *restrict dest,

                   const char **restrict srcp, size_t len,

                   mbstate_t *restrict ps)

                  _GL_ARG_NONNULL ((2)));

_GL_CXXALIAS_RPL (mbsrtowcs, size_t,

                  (wchar_t *restrict dest,

                   const char **restrict srcp, size_t len,

                   mbstate_t *restrict ps));

# else

#  if !@HAVE_MBSRTOWCS@

_GL_FUNCDECL_SYS (mbsrtowcs, size_t,

                  (wchar_t *restrict dest,

                   const char **restrict srcp, size_t len,

                   mbstate_t *restrict ps)

                  _GL_ARG_NONNULL ((2)));

#  endif

_GL_CXXALIAS_SYS (mbsrtowcs, size_t,

                  (wchar_t *restrict dest,

                   const char **restrict srcp, size_t len,

                   mbstate_t *restrict ps));

# endif

# if __GLIBC__ >= 2

_GL_CXXALIASWARN (mbsrtowcs);

# endif

#elif defined GNULIB_POSIXCHECK

# undef mbsrtowcs

# if HAVE_RAW_DECL_MBSRTOWCS

_GL_WARN_ON_USE (mbsrtowcs, "mbsrtowcs is unportable - "

                 "use gnulib module mbsrtowcs for portability");

# endif

#endif

/* Convert a string to a wide string.  */

#if @GNULIB_MBSNRTOWCS@

# if @REPLACE_MBSNRTOWCS@

#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)

#   undef mbsnrtowcs

#   define mbsnrtowcs rpl_mbsnrtowcs

#  endif

_GL_FUNCDECL_RPL (mbsnrtowcs, size_t,

                  (wchar_t *restrict dest,

                   const char **restrict srcp, size_t srclen, size_t len,

                   mbstate_t *restrict ps)

                  _GL_ARG_NONNULL ((2)));

_GL_CXXALIAS_RPL (mbsnrtowcs, size_t,

                  (wchar_t *restrict dest,

                   const char **restrict srcp, size_t srclen, size_t len,

                   mbstate_t *restrict ps));

# else

#  if !@HAVE_MBSNRTOWCS@

_GL_FUNCDECL_SYS (mbsnrtowcs, size_t,

                  (wchar_t *restrict dest,

                   const char **restrict srcp, size_t srclen, size_t len,

                   mbstate_t *restrict ps)

                  _GL_ARG_NONNULL ((2)));

#  endif

_GL_CXXALIAS_SYS (mbsnrtowcs, size_t,

                  (wchar_t *restrict dest,

                   const char **restrict srcp, size_t srclen, size_t len,

                   mbstate_t *restrict ps));

# endif

_GL_CXXALIASWARN (mbsnrtowcs);

#elif defined GNULIB_POSIXCHECK

# undef mbsnrtowcs

# if HAVE_RAW_DECL_MBSNRTOWCS

_GL_WARN_ON_USE (mbsnrtowcs, "mbsnrtowcs is unportable - "

                 "use gnulib module mbsnrtowcs for portability");

# endif

#endif

/* Convert a wide character to a multibyte character.  */

#if @GNULIB_WCRTOMB@

# if @REPLACE_WCRTOMB@

#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)

#   undef wcrtomb

#   define wcrtomb rpl_wcrtomb

#  endif

_GL_FUNCDECL_RPL (wcrtomb, size_t,

                  (char *restrict s, wchar_t wc, mbstate_t *restrict ps));

_GL_CXXALIAS_RPL (wcrtomb, size_t,

                  (char *restrict s, wchar_t wc, mbstate_t *restrict ps));

# else

#  if !@HAVE_WCRTOMB@

_GL_FUNCDECL_SYS (wcrtomb, size_t,

                  (char *restrict s, wchar_t wc, mbstate_t *restrict ps));

#  endif

_GL_CXXALIAS_SYS (wcrtomb, size_t,

                  (char *restrict s, wchar_t wc, mbstate_t *restrict ps));

# endif

# if __GLIBC__ >= 2

_GL_CXXALIASWARN (wcrtomb);

# endif

#elif defined GNULIB_POSIXCHECK

# undef wcrtomb

# if HAVE_RAW_DECL_WCRTOMB

_GL_WARN_ON_USE (wcrtomb, "wcrtomb is unportable - "

                 "use gnulib module wcrtomb for portability");

# endif

#endif

/* Convert a wide string to a string.  */

#if @GNULIB_WCSRTOMBS@

# if @REPLACE_WCSRTOMBS@

#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)

#   undef wcsrtombs

#   define wcsrtombs rpl_wcsrtombs

#  endif

_GL_FUNCDECL_RPL (wcsrtombs, size_t,

                  (char *restrict dest, const wchar_t **restrict srcp,

                   size_t len,

                   mbstate_t *restrict ps)

                  _GL_ARG_NONNULL ((2)));

_GL_CXXALIAS_RPL (wcsrtombs, size_t,

                  (char *restrict dest, const wchar_t **restrict srcp,

                   size_t len,

                   mbstate_t *restrict ps));

# else

#  if !@HAVE_WCSRTOMBS@

_GL_FUNCDECL_SYS (wcsrtombs, size_t,

                  (char *restrict dest, const wchar_t **restrict srcp,

                   size_t len,

                   mbstate_t *restrict ps)

                  _GL_ARG_NONNULL ((2)));

#  endif

_GL_CXXALIAS_SYS (wcsrtombs, size_t,

                  (char *restrict dest, const wchar_t **restrict srcp,

                   size_t len,

                   mbstate_t *restrict ps));

# endif

# if __GLIBC__ >= 2

_GL_CXXALIASWARN (wcsrtombs);

# endif

#elif defined GNULIB_POSIXCHECK

# undef wcsrtombs

# if HAVE_RAW_DECL_WCSRTOMBS

_GL_WARN_ON_USE (wcsrtombs, "wcsrtombs is unportable - "

                 "use gnulib module wcsrtombs for portability");

# endif

#endif

/* Convert a wide string to a string.  */

#if @GNULIB_WCSNRTOMBS@

# if @REPLACE_WCSNRTOMBS@

#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)

#   undef wcsnrtombs

#   define wcsnrtombs rpl_wcsnrtombs

#  endif

_GL_FUNCDECL_RPL (wcsnrtombs, size_t,

                  (char *restrict dest,

                   const wchar_t **restrict srcp, size_t srclen,

                   size_t len,

                   mbstate_t *restrict ps)

                  _GL_ARG_NONNULL ((2)));

_GL_CXXALIAS_RPL (wcsnrtombs, size_t,

                  (char *restrict dest,

                   const wchar_t **restrict srcp, size_t srclen,

                   size_t len,

                   mbstate_t *restrict ps));

# else

#  if !@HAVE_WCSNRTOMBS@ || (defined __cplusplus && defined __sun)

_GL_FUNCDECL_SYS (wcsnrtombs, size_t,

                  (char *restrict dest,

                   const wchar_t **restrict srcp, size_t srclen,

                   size_t len,

                   mbstate_t *restrict ps)

                  _GL_ARG_NONNULL ((2)));

#  endif

_GL_CXXALIAS_SYS (wcsnrtombs, size_t,

                  (char *restrict dest,

                   const wchar_t **restrict srcp, size_t srclen,

                   size_t len,

                   mbstate_t *restrict ps));

# endif

# if __GLIBC__ >= 2

_GL_CXXALIASWARN (wcsnrtombs);

# endif

#elif defined GNULIB_POSIXCHECK

# undef wcsnrtombs

# if HAVE_RAW_DECL_WCSNRTOMBS

_GL_WARN_ON_USE (wcsnrtombs, "wcsnrtombs is unportable - "

                 "use gnulib module wcsnrtombs for portability");

# endif

#endif

/* Return the number of screen columns needed for WC.  */

#if @GNULIB_WCWIDTH@

# if @REPLACE_WCWIDTH@

#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)

#   undef wcwidth

#   define wcwidth rpl_wcwidth

#  endif

_GL_FUNCDECL_RPL (wcwidth, int, (wchar_t) _GL_ATTRIBUTE_PURE);

_GL_CXXALIAS_RPL (wcwidth, int, (wchar_t));

# else

#  if !@HAVE_DECL_WCWIDTH@

/* wcwidth exists but is not declared.  */

_GL_FUNCDECL_SYS (wcwidth, int, (wchar_t) _GL_ATTRIBUTE_PURE);

#  endif

_GL_CXXALIAS_SYS (wcwidth, int, (wchar_t));

# endif

# if __GLIBC__ >= 2

_GL_CXXALIASWARN (wcwidth);

# endif

#elif defined GNULIB_POSIXCHECK

# undef wcwidth

# if HAVE_RAW_DECL_WCWIDTH

_GL_WARN_ON_USE (wcwidth, "wcwidth is unportable - "

                 "use gnulib module wcwidth for portability");

# endif

#endif

/* Search N wide characters of S for C.  */

#if @GNULIB_WMEMCHR@

# if !@HAVE_WMEMCHR@

_GL_FUNCDECL_SYS (wmemchr, wchar_t *, (const wchar_t *s, wchar_t c, size_t n)

                                      _GL_ATTRIBUTE_PURE);

# endif

  /* On some systems, this function is defined as an overloaded function:

       extern "C++" {

         const wchar_t * std::wmemchr (const wchar_t *, wchar_t, size_t);

         wchar_t * std::wmemchr (wchar_t *, wchar_t, size_t);

       }  */

_GL_CXXALIAS_SYS_CAST2 (wmemchr,

                        wchar_t *, (const wchar_t *, wchar_t, size_t),

                        const wchar_t *, (const wchar_t *, wchar_t, size_t));

# if ((__GLIBC__ == 2 && __GLIBC_MINOR__ >= 10) && !defined __UCLIBC__) \

     && (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 4))

_GL_CXXALIASWARN1 (wmemchr, wchar_t *, (wchar_t *s, wchar_t c, size_t n));

_GL_CXXALIASWARN1 (wmemchr, const wchar_t *,

                   (const wchar_t *s, wchar_t c, size_t n));

# elif __GLIBC__ >= 2

_GL_CXXALIASWARN (wmemchr);

# endif

#elif defined GNULIB_POSIXCHECK

# undef wmemchr

# if HAVE_RAW_DECL_WMEMCHR

_GL_WARN_ON_USE (wmemchr, "wmemchr is unportable - "

                 "use gnulib module wmemchr for portability");

# endif

#endif

/* Compare N wide characters of S1 and S2.  */

#if @GNULIB_WMEMCMP@

# if !@HAVE_WMEMCMP@

_GL_FUNCDECL_SYS (wmemcmp, int,

                  (const wchar_t *s1, const wchar_t *s2, size_t n)

                  _GL_ATTRIBUTE_PURE);

# endif

_GL_CXXALIAS_SYS (wmemcmp, int,

                  (const wchar_t *s1, const wchar_t *s2, size_t n));

# if __GLIBC__ >= 2

_GL_CXXALIASWARN (wmemcmp);

# endif

#elif defined GNULIB_POSIXCHECK

# undef wmemcmp

# if HAVE_RAW_DECL_WMEMCMP

_GL_WARN_ON_USE (wmemcmp, "wmemcmp is unportable - "

                 "use gnulib module wmemcmp for portability");

# endif

#endif

/* Copy N wide characters of SRC to DEST.  */

#if @GNULIB_WMEMCPY@

# if !@HAVE_WMEMCPY@

_GL_FUNCDECL_SYS (wmemcpy, wchar_t *,

                  (wchar_t *restrict dest,

                   const wchar_t *restrict src, size_t n));

# endif

_GL_CXXALIAS_SYS (wmemcpy, wchar_t *,

                  (wchar_t *restrict dest,

                   const wchar_t *restrict src, size_t n));

# if __GLIBC__ >= 2

_GL_CXXALIASWARN (wmemcpy);

# endif

#elif defined GNULIB_POSIXCHECK

# undef wmemcpy

# if HAVE_RAW_DECL_WMEMCPY

_GL_WARN_ON_USE (wmemcpy, "wmemcpy is unportable - "

                 "use gnulib module wmemcpy for portability");

# endif

#endif

/* Copy N wide characters of SRC to DEST, guaranteeing correct behavior for

   overlapping memory areas.  */

#if @GNULIB_WMEMMOVE@

# if !@HAVE_WMEMMOVE@

_GL_FUNCDECL_SYS (wmemmove, wchar_t *,

                  (wchar_t *dest, const wchar_t *src, size_t n));

# endif

_GL_CXXALIAS_SYS (wmemmove, wchar_t *,

                  (wchar_t *dest, const wchar_t *src, size_t n));

# if __GLIBC__ >= 2

_GL_CXXALIASWARN (wmemmove);

# endif

#elif defined GNULIB_POSIXCHECK

# undef wmemmove

# if HAVE_RAW_DECL_WMEMMOVE

_GL_WARN_ON_USE (wmemmove, "wmemmove is unportable - "

                 "use gnulib module wmemmove for portability");

# endif

#endif

/* Set N wide characters of S to C.  */

#if @GNULIB_WMEMSET@

# if !@HAVE_WMEMSET@

_GL_FUNCDECL_SYS (wmemset, wchar_t *, (wchar_t *s, wchar_t c, size_t n));

# endif

_GL_CXXALIAS_SYS (wmemset, wchar_t *, (wchar_t *s, wchar_t c, size_t n));

# if __GLIBC__ >= 2

_GL_CXXALIASWARN (wmemset);

# endif

#elif defined GNULIB_POSIXCHECK

# undef wmemset

# if HAVE_RAW_DECL_WMEMSET

_GL_WARN_ON_USE (wmemset, "wmemset is unportable - "

                 "use gnulib module wmemset for portability");

# endif

#endif

/* Return the number of wide characters in S.  */

#if @GNULIB_WCSLEN@

# if !@HAVE_WCSLEN@

_GL_FUNCDECL_SYS (wcslen, size_t, (const wchar_t *s) _GL_ATTRIBUTE_PURE);

# endif

_GL_CXXALIAS_SYS (wcslen, size_t, (const wchar_t *s));

# if __GLIBC__ >= 2

_GL_CXXALIASWARN (wcslen);

# endif

#elif defined GNULIB_POSIXCHECK

# undef wcslen

# if HAVE_RAW_DECL_WCSLEN

_GL_WARN_ON_USE (wcslen, "wcslen is unportable - "

                 "use gnulib module wcslen for portability");

# endif

#endif

/* Return the number of wide characters in S, but at most MAXLEN.  */

#if @GNULIB_WCSNLEN@

# if !@HAVE_WCSNLEN@

_GL_FUNCDECL_SYS (wcsnlen, size_t, (const wchar_t *s, size_t maxlen)

                                   _GL_ATTRIBUTE_PURE);

# endif

_GL_CXXALIAS_SYS (wcsnlen, size_t, (const wchar_t *s, size_t maxlen));

_GL_CXXALIASWARN (wcsnlen);

#elif defined GNULIB_POSIXCHECK

# undef wcsnlen

# if HAVE_RAW_DECL_WCSNLEN

_GL_WARN_ON_USE (wcsnlen, "wcsnlen is unportable - "

                 "use gnulib module wcsnlen for portability");

# endif

#endif

/* Copy SRC to DEST.  */

#if @GNULIB_WCSCPY@

# if !@HAVE_WCSCPY@

_GL_FUNCDECL_SYS (wcscpy, wchar_t *,

                  (wchar_t *restrict dest, const wchar_t *restrict src));

# endif

_GL_CXXALIAS_SYS (wcscpy, wchar_t *,

                  (wchar_t *restrict dest, const wchar_t *restrict src));

# if __GLIBC__ >= 2

_GL_CXXALIASWARN (wcscpy);

# endif

#elif defined GNULIB_POSIXCHECK

# undef wcscpy

# if HAVE_RAW_DECL_WCSCPY

_GL_WARN_ON_USE (wcscpy, "wcscpy is unportable - "

                 "use gnulib module wcscpy for portability");

# endif

#endif

/* Copy SRC to DEST, returning the address of the terminating L'\0' in DEST.  */

#if @GNULIB_WCPCPY@

# if !@HAVE_WCPCPY@

_GL_FUNCDECL_SYS (wcpcpy, wchar_t *,

                  (wchar_t *restrict dest, const wchar_t *restrict src));

# endif

_GL_CXXALIAS_SYS (wcpcpy, wchar_t *,

                  (wchar_t *restrict dest, const wchar_t *restrict src));

_GL_CXXALIASWARN (wcpcpy);

#elif defined GNULIB_POSIXCHECK

# undef wcpcpy

# if HAVE_RAW_DECL_WCPCPY

_GL_WARN_ON_USE (wcpcpy, "wcpcpy is unportable - "

                 "use gnulib module wcpcpy for portability");

# endif

#endif

/* Copy no more than N wide characters of SRC to DEST.  */

#if @GNULIB_WCSNCPY@

# if !@HAVE_WCSNCPY@

_GL_FUNCDECL_SYS (wcsncpy, wchar_t *,

                  (wchar_t *restrict dest,

                   const wchar_t *restrict src, size_t n));

# endif

_GL_CXXALIAS_SYS (wcsncpy, wchar_t *,

                  (wchar_t *restrict dest,

                   const wchar_t *restrict src, size_t n));

# if __GLIBC__ >= 2

_GL_CXXALIASWARN (wcsncpy);

# endif

#elif defined GNULIB_POSIXCHECK

# undef wcsncpy

# if HAVE_RAW_DECL_WCSNCPY

_GL_WARN_ON_USE (wcsncpy, "wcsncpy is unportable - "

                 "use gnulib module wcsncpy for portability");

# endif

#endif

/* Copy no more than N characters of SRC to DEST, returning the address of

   the last character written into DEST.  */

#if @GNULIB_WCPNCPY@

# if !@HAVE_WCPNCPY@

_GL_FUNCDECL_SYS (wcpncpy, wchar_t *,

                  (wchar_t *restrict dest,

                   const wchar_t *restrict src, size_t n));

# endif

_GL_CXXALIAS_SYS (wcpncpy, wchar_t *,

                  (wchar_t *restrict dest,

                   const wchar_t *restrict src, size_t n));

_GL_CXXALIASWARN (wcpncpy);

#elif defined GNULIB_POSIXCHECK

# undef wcpncpy

# if HAVE_RAW_DECL_WCPNCPY

_GL_WARN_ON_USE (wcpncpy, "wcpncpy is unportable - "

                 "use gnulib module wcpncpy for portability");

# endif

#endif

/* Append SRC onto DEST.  */

#if @GNULIB_WCSCAT@

# if !@HAVE_WCSCAT@

_GL_FUNCDECL_SYS (wcscat, wchar_t *,

                  (wchar_t *restrict dest, const wchar_t *restrict src));

# endif

_GL_CXXALIAS_SYS (wcscat, wchar_t *,

                  (wchar_t *restrict dest, const wchar_t *restrict src));

# if __GLIBC__ >= 2

_GL_CXXALIASWARN (wcscat);

# endif

#elif defined GNULIB_POSIXCHECK

# undef wcscat

# if HAVE_RAW_DECL_WCSCAT

_GL_WARN_ON_USE (wcscat, "wcscat is unportable - "

                 "use gnulib module wcscat for portability");

# endif

#endif

/* Append no more than N wide characters of SRC onto DEST.  */

#if @GNULIB_WCSNCAT@

# if !@HAVE_WCSNCAT@

_GL_FUNCDECL_SYS (wcsncat, wchar_t *,

                  (wchar_t *restrict dest, const wchar_t *restrict src,

                   size_t n));

# endif

_GL_CXXALIAS_SYS (wcsncat, wchar_t *,

                  (wchar_t *restrict dest, const wchar_t *restrict src,

                   size_t n));

# if __GLIBC__ >= 2

_GL_CXXALIASWARN (wcsncat);

# endif

#elif defined GNULIB_POSIXCHECK

# undef wcsncat

# if HAVE_RAW_DECL_WCSNCAT

_GL_WARN_ON_USE (wcsncat, "wcsncat is unportable - "

                 "use gnulib module wcsncat for portability");

# endif

#endif

/* Compare S1 and S2.  */

#if @GNULIB_WCSCMP@

# if !@HAVE_WCSCMP@

_GL_FUNCDECL_SYS (wcscmp, int, (const wchar_t *s1, const wchar_t *s2)

                               _GL_ATTRIBUTE_PURE);

# endif

_GL_CXXALIAS_SYS (wcscmp, int, (const wchar_t *s1, const wchar_t *s2));

# if __GLIBC__ >= 2

_GL_CXXALIASWARN (wcscmp);

# endif

#elif defined GNULIB_POSIXCHECK

# undef wcscmp

# if HAVE_RAW_DECL_WCSCMP

_GL_WARN_ON_USE (wcscmp, "wcscmp is unportable - "

                 "use gnulib module wcscmp for portability");

# endif

#endif

/* Compare no more than N wide characters of S1 and S2.  */

#if @GNULIB_WCSNCMP@

# if !@HAVE_WCSNCMP@

_GL_FUNCDECL_SYS (wcsncmp, int,

                  (const wchar_t *s1, const wchar_t *s2, size_t n)

                  _GL_ATTRIBUTE_PURE);

# endif

_GL_CXXALIAS_SYS (wcsncmp, int,

                  (const wchar_t *s1, const wchar_t *s2, size_t n));

# if __GLIBC__ >= 2

_GL_CXXALIASWARN (wcsncmp);

# endif

#elif defined GNULIB_POSIXCHECK

# undef wcsncmp

# if HAVE_RAW_DECL_WCSNCMP

_GL_WARN_ON_USE (wcsncmp, "wcsncmp is unportable - "

                 "use gnulib module wcsncmp for portability");

# endif

#endif

/* Compare S1 and S2, ignoring case.  */

#if @GNULIB_WCSCASECMP@

# if !@HAVE_WCSCASECMP@

_GL_FUNCDECL_SYS (wcscasecmp, int, (const wchar_t *s1, const wchar_t *s2)

                                   _GL_ATTRIBUTE_PURE);

# endif

_GL_CXXALIAS_SYS (wcscasecmp, int, (const wchar_t *s1, const wchar_t *s2));

_GL_CXXALIASWARN (wcscasecmp);

#elif defined GNULIB_POSIXCHECK

# undef wcscasecmp

# if HAVE_RAW_DECL_WCSCASECMP

_GL_WARN_ON_USE (wcscasecmp, "wcscasecmp is unportable - "

                 "use gnulib module wcscasecmp for portability");

# endif

#endif

/* Compare no more than N chars of S1 and S2, ignoring case.  */

#if @GNULIB_WCSNCASECMP@

# if !@HAVE_WCSNCASECMP@

_GL_FUNCDECL_SYS (wcsncasecmp, int,

                  (const wchar_t *s1, const wchar_t *s2, size_t n)

                  _GL_ATTRIBUTE_PURE);

# endif

_GL_CXXALIAS_SYS (wcsncasecmp, int,

                  (const wchar_t *s1, const wchar_t *s2, size_t n));

_GL_CXXALIASWARN (wcsncasecmp);

#elif defined GNULIB_POSIXCHECK

# undef wcsncasecmp

# if HAVE_RAW_DECL_WCSNCASECMP

_GL_WARN_ON_USE (wcsncasecmp, "wcsncasecmp is unportable - "

                 "use gnulib module wcsncasecmp for portability");

# endif

#endif

/* Compare S1 and S2, both interpreted as appropriate to the LC_COLLATE

   category of the current locale.  */