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

   Copyright (C) 2007-2018 Free Software Foundation, Inc.

   This program is free software: you can redistribute it and/or
   modify it under the terms of either:

     * the GNU Lesser General Public License as published by the Free
       Software Foundation; either version 3 of the License, or (at your
       option) any later version.

   or

     * the GNU General Public License as published by the Free
       Software Foundation; either version 2 of the License, or (at your
       option) any later version.

   or both in parallel, as here.
   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, see <https://www.gnu.org/licenses/>.  */

/* Written by Eric Blake.  */

/*
 * ISO C 99 <wchar.h> for platforms that have issues.
 * <http://www.opengroup.org/susv3xbd/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 strtoimax)         \
             || 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.  */
#if __GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 96)
# define _GL_ATTRIBUTE_PURE __attribute__ ((__pure__))
#else
# define _GL_ATTRIBUTE_PURE /* empty */
#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.  */
#if !(@HAVE_MBSINIT@ && @HAVE_MBRTOWC@) || @REPLACE_MBSTATE_T@
# if !GNULIB_defined_mbstate_t
typedef int rpl_mbstate_t;
#  undef mbstate_t
#  define mbstate_t rpl_mbstate_t
#  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
_GL_CXXALIAS_SYS (btowc, wint_t, (int c));
# endif
_GL_CXXALIASWARN (btowc);
#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
_GL_CXXALIASWARN (wctob);
#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
_GL_CXXALIASWARN (mbsinit);
#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 *pwc, const char *s, size_t n, mbstate_t *ps));
_GL_CXXALIAS_RPL (mbrtowc, size_t,
                  (wchar_t *pwc, const char *s, size_t n, mbstate_t *ps));
# else
#  if !@HAVE_MBRTOWC@
_GL_FUNCDECL_SYS (mbrtowc, size_t,
                  (wchar_t *pwc, const char *s, size_t n, mbstate_t *ps));
#  endif
_GL_CXXALIAS_SYS (mbrtowc, size_t,
                  (wchar_t *pwc, const char *s, size_t n, mbstate_t *ps));
# endif
_GL_CXXALIASWARN (mbrtowc);
#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 *s, size_t n, mbstate_t *ps));
_GL_CXXALIAS_RPL (mbrlen, size_t, (const char *s, size_t n, mbstate_t *ps));
# else
#  if !@HAVE_MBRLEN@
_GL_FUNCDECL_SYS (mbrlen, size_t, (const char *s, size_t n, mbstate_t *ps));
#  endif
_GL_CXXALIAS_SYS (mbrlen, size_t, (const char *s, size_t n, mbstate_t *ps));
# endif
_GL_CXXALIASWARN (mbrlen);
#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 *dest, const char **srcp, size_t len, mbstate_t *ps)
                  _GL_ARG_NONNULL ((2)));
_GL_CXXALIAS_RPL (mbsrtowcs, size_t,
                  (wchar_t *dest, const char **srcp, size_t len,
                   mbstate_t *ps));
# else
#  if !@HAVE_MBSRTOWCS@
_GL_FUNCDECL_SYS (mbsrtowcs, size_t,
                  (wchar_t *dest, const char **srcp, size_t len, mbstate_t *ps)
                  _GL_ARG_NONNULL ((2)));
#  endif
_GL_CXXALIAS_SYS (mbsrtowcs, size_t,
                  (wchar_t *dest, const char **srcp, size_t len,
                   mbstate_t *ps));
# endif
_GL_CXXALIASWARN (mbsrtowcs);
#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 *dest, const char **srcp, size_t srclen, size_t len,
                   mbstate_t *ps)
                  _GL_ARG_NONNULL ((2)));
_GL_CXXALIAS_RPL (mbsnrtowcs, size_t,
                  (wchar_t *dest, const char **srcp, size_t srclen, size_t len,
                   mbstate_t *ps));
# else
#  if !@HAVE_MBSNRTOWCS@
_GL_FUNCDECL_SYS (mbsnrtowcs, size_t,
                  (wchar_t *dest, const char **srcp, size_t srclen, size_t len,
                   mbstate_t *ps)
                  _GL_ARG_NONNULL ((2)));
#  endif
_GL_CXXALIAS_SYS (mbsnrtowcs, size_t,
                  (wchar_t *dest, const char **srcp, size_t srclen, size_t len,
                   mbstate_t *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 *s, wchar_t wc, mbstate_t *ps));
_GL_CXXALIAS_RPL (wcrtomb, size_t, (char *s, wchar_t wc, mbstate_t *ps));
# else
#  if !@HAVE_WCRTOMB@
_GL_FUNCDECL_SYS (wcrtomb, size_t, (char *s, wchar_t wc, mbstate_t *ps));
#  endif
_GL_CXXALIAS_SYS (wcrtomb, size_t, (char *s, wchar_t wc, mbstate_t *ps));
# endif
_GL_CXXALIASWARN (wcrtomb);
#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 *dest, const wchar_t **srcp, size_t len, mbstate_t *ps)
                  _GL_ARG_NONNULL ((2)));
_GL_CXXALIAS_RPL (wcsrtombs, size_t,
                  (char *dest, const wchar_t **srcp, size_t len,
                   mbstate_t *ps));
# else
#  if !@HAVE_WCSRTOMBS@
_GL_FUNCDECL_SYS (wcsrtombs, size_t,
                  (char *dest, const wchar_t **srcp, size_t len, mbstate_t *ps)
                  _GL_ARG_NONNULL ((2)));
#  endif
_GL_CXXALIAS_SYS (wcsrtombs, size_t,
                  (char *dest, const wchar_t **srcp, size_t len,
                   mbstate_t *ps));
# endif
_GL_CXXALIASWARN (wcsrtombs);
#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 *dest, const wchar_t **srcp, size_t srclen, size_t len,
                   mbstate_t *ps)
                  _GL_ARG_NONNULL ((2)));
_GL_CXXALIAS_RPL (wcsnrtombs, size_t,
                  (char *dest, const wchar_t **srcp, size_t srclen, size_t len,
                   mbstate_t *ps));
# else
#  if !@HAVE_WCSNRTOMBS@
_GL_FUNCDECL_SYS (wcsnrtombs, size_t,
                  (char *dest, const wchar_t **srcp, size_t srclen, size_t len,
                   mbstate_t *ps)
                  _GL_ARG_NONNULL ((2)));
#  endif
_GL_CXXALIAS_SYS (wcsnrtombs, size_t,
                  (char *dest, const wchar_t **srcp, size_t srclen, size_t len,
                   mbstate_t *ps));
# endif
_GL_CXXALIASWARN (wcsnrtombs);
#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
_GL_CXXALIASWARN (wcwidth);
#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));
# else
_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));
_GL_CXXALIASWARN (wmemcmp);
#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 *dest, const wchar_t *src, size_t n));
# endif
_GL_CXXALIAS_SYS (wmemcpy, wchar_t *,
                  (wchar_t *dest, const wchar_t *src, size_t n));
_GL_CXXALIASWARN (wmemcpy);
#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));
_GL_CXXALIASWARN (wmemmove);
#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));
_GL_CXXALIASWARN (wmemset);
#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));
_GL_CXXALIASWARN (wcslen);
#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 *dest, const wchar_t *src));
# endif
_GL_CXXALIAS_SYS (wcscpy, wchar_t *, (wchar_t *dest, const wchar_t *src));
_GL_CXXALIASWARN (wcscpy);
#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 *dest, const wchar_t *src));
# endif
_GL_CXXALIAS_SYS (wcpcpy, wchar_t *, (wchar_t *dest, const wchar_t *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 *dest, const wchar_t *src, size_t n));
# endif
_GL_CXXALIAS_SYS (wcsncpy, wchar_t *,
                  (wchar_t *dest, const wchar_t *src, size_t n));
_GL_CXXALIASWARN (wcsncpy);
#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 *dest, const wchar_t *src, size_t n));
# endif
_GL_CXXALIAS_SYS (wcpncpy, wchar_t *,
                  (wchar_t *dest, const wchar_t *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 *dest, const wchar_t *src));
# endif
_GL_CXXALIAS_SYS (wcscat, wchar_t *, (wchar_t *dest, const wchar_t *src));
_GL_CXXALIASWARN (wcscat);
#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 *dest, const wchar_t *src, size_t n));
# endif
_GL_CXXALIAS_SYS (wcsncat, wchar_t *,
                  (wchar_t *dest, const wchar_t *src, size_t n));
_GL_CXXALIASWARN (wcsncat);
#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));
_GL_CXXALIASWARN (wcscmp);
#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));
_GL_CXXALIASWARN (wcsncmp);
#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.  */
#if @GNULIB_WCSCOLL@
# if !@HAVE_WCSCOLL@
_GL_FUNCDECL_SYS (wcscoll, int, (const wchar_t *s1, const wchar_t *s2));
# endif
_GL_CXXALIAS_SYS (wcscoll, int, (const wchar_t *s1, const wchar_t *s2));
_GL_CXXALIASWARN (wcscoll);
#elif defined GNULIB_POSIXCHECK
# undef wcscoll
# if HAVE_RAW_DECL_WCSCOLL
_GL_WARN_ON_USE (wcscoll, "wcscoll is unportable - "
                 "use gnulib module wcscoll for portability");
# endif
#endif


/* Transform S2 into array pointed to by S1 such that if wcscmp is applied
   to two transformed strings the result is the as applying 'wcscoll' to the
   original strings.  */
#if @GNULIB_WCSXFRM@
# if !@HAVE_WCSXFRM@
_GL_FUNCDECL_SYS (wcsxfrm, size_t, (wchar_t *s1, const wchar_t *s2, size_t n));
# endif
_GL_CXXALIAS_SYS (wcsxfrm, size_t, (wchar_t *s1, const wchar_t *s2, size_t n));
_GL_CXXALIASWARN (wcsxfrm);
#elif defined GNULIB_POSIXCHECK
# undef wcsxfrm
# if HAVE_RAW_DECL_WCSXFRM
_GL_WARN_ON_USE (wcsxfrm, "wcsxfrm is unportable - "
                 "use gnulib module wcsxfrm for portability");
# endif
#endif


/* Duplicate S, returning an identical malloc'd string.  */
#if @GNULIB_WCSDUP@
# if !@HAVE_WCSDUP@
_GL_FUNCDECL_SYS (wcsdup, wchar_t *, (const wchar_t *s));
# endif
_GL_CXXALIAS_SYS (wcsdup, wchar_t *, (const wchar_t *s));
_GL_CXXALIASWARN (wcsdup);
#elif defined GNULIB_POSIXCHECK
# undef wcsdup
# if HAVE_RAW_DECL_WCSDUP
_GL_WARN_ON_USE (wcsdup, "wcsdup is unportable - "
                 "use gnulib module wcsdup for portability");
# endif
#endif


/* Find the first occurrence of WC in WCS.  */
#if @GNULIB_WCSCHR@
# if !@HAVE_WCSCHR@
_GL_FUNCDECL_SYS (wcschr, wchar_t *, (const wchar_t *wcs, wchar_t wc)
                                     _GL_ATTRIBUTE_PURE);
# endif
  /* On some systems, this function is defined as an overloaded function:
       extern "C++" {
         const wchar_t * std::wcschr (const wchar_t *, wchar_t);
         wchar_t * std::wcschr (wchar_t *, wchar_t);
       }  */
_GL_CXXALIAS_SYS_CAST2 (wcschr,
                        wchar_t *, (const wchar_t *, wchar_t),
                        const wchar_t *, (const wchar_t *, wchar_t));
# if ((__GLIBC__ == 2 && __GLIBC_MINOR__ >= 10) && !defined __UCLIBC__) \
     && (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 4))
_GL_CXXALIASWARN1 (wcschr, wchar_t *, (wchar_t *wcs, wchar_t wc));
_GL_CXXALIASWARN1 (wcschr, const wchar_t *, (const wchar_t *wcs, wchar_t wc));
# else
_GL_CXXALIASWARN (wcschr);
# endif
#elif defined GNULIB_POSIXCHECK
# undef wcschr
# if HAVE_RAW_DECL_WCSCHR
_GL_WARN_ON_USE (wcschr, "wcschr is unportable - "
                 "use gnulib module wcschr for portability");
# endif
#endif


/* Find the last occurrence of WC in WCS.  */
#if @GNULIB_WCSRCHR@
# if !@HAVE_WCSRCHR@
_GL_FUNCDECL_SYS (wcsrchr, wchar_t *, (const wchar_t *wcs, wchar_t wc)
                                      _GL_ATTRIBUTE_PURE);
# endif
  /* On some systems, this function is defined as an overloaded function:
       extern "C++" {
         const wchar_t * std::wcsrchr (const wchar_t *, wchar_t);
         wchar_t * std::wcsrchr (wchar_t *, wchar_t);
       }  */
_GL_CXXALIAS_SYS_CAST2 (wcsrchr,
                        wchar_t *, (const wchar_t *, wchar_t),
                        const wchar_t *, (const wchar_t *, wchar_t));
# if ((__GLIBC__ == 2 && __GLIBC_MINOR__ >= 10) && !defined __UCLIBC__) \
     && (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 4))
_GL_CXXALIASWARN1 (wcsrchr, wchar_t *, (wchar_t *wcs, wchar_t wc));
_GL_CXXALIASWARN1 (wcsrchr, const wchar_t *, (const wchar_t *wcs, wchar_t wc));
# else
_GL_CXXALIASWARN (wcsrchr);
# endif
#elif defined GNULIB_POSIXCHECK
# undef wcsrchr
# if HAVE_RAW_DECL_WCSRCHR
_GL_WARN_ON_USE (wcsrchr, "wcsrchr is unportable - "
                 "use gnulib module wcsrchr for portability");
# endif
#endif


/* Return the length of the initial segmet of WCS which consists entirely
   of wide characters not in REJECT.  */
#if @GNULIB_WCSCSPN@
# if !@HAVE_WCSCSPN@
_GL_FUNCDECL_SYS (wcscspn, size_t, (const wchar_t *wcs, const wchar_t *reject)
                                   _GL_ATTRIBUTE_PURE);
# endif
_GL_CXXALIAS_SYS (wcscspn, size_t, (const wchar_t *wcs, const wchar_t *reject));
_GL_CXXALIASWARN (wcscspn);
#elif defined GNULIB_POSIXCHECK
# undef wcscspn
# if HAVE_RAW_DECL_WCSCSPN
_GL_WARN_ON_USE (wcscspn, "wcscspn is unportable - "
                 "use gnulib module wcscspn for portability");
# endif
#endif


/* Return the length of the initial segmet of WCS which consists entirely
   of wide characters in ACCEPT.  */
#if @GNULIB_WCSSPN@
# if !@HAVE_WCSSPN@
_GL_FUNCDECL_SYS (wcsspn, size_t, (const wchar_t *wcs, const wchar_t *accept)
                                  _GL_ATTRIBUTE_PURE);
# endif
_GL_CXXALIAS_SYS (wcsspn, size_t, (const wchar_t *wcs, const wchar_t *accept));
_GL_CXXALIASWARN (wcsspn);
#elif defined GNULIB_POSIXCHECK
# undef wcsspn
# if HAVE_RAW_DECL_WCSSPN
_GL_WARN_ON_USE (wcsspn, "wcsspn is unportable - "
                 "use gnulib module wcsspn for portability");
# endif
#endif


/* Find the first occurrence in WCS of any character in ACCEPT.  */
#if @GNULIB_WCSPBRK@
# if !@HAVE_WCSPBRK@
_GL_FUNCDECL_SYS (wcspbrk, wchar_t *,
                  (const wchar_t *wcs, const wchar_t *accept)
                  _GL_ATTRIBUTE_PURE);
# endif
  /* On some systems, this function is defined as an overloaded function:
       extern "C++" {
         const wchar_t * std::wcspbrk (const wchar_t *, const wchar_t *);
         wchar_t * std::wcspbrk (wchar_t *, const wchar_t *);
       }  */
_GL_CXXALIAS_SYS_CAST2 (wcspbrk,
                        wchar_t *, (const wchar_t *, const wchar_t *),
                        const wchar_t *, (const wchar_t *, const wchar_t *));
# if ((__GLIBC__ == 2 && __GLIBC_MINOR__ >= 10) && !defined __UCLIBC__) \
     && (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 4))
_GL_CXXALIASWARN1 (wcspbrk, wchar_t *,
                   (wchar_t *wcs, const wchar_t *accept));
_GL_CXXALIASWARN1 (wcspbrk, const wchar_t *,
                   (const wchar_t *wcs, const wchar_t *accept));
# else
_GL_CXXALIASWARN (wcspbrk);
# endif
#elif defined GNULIB_POSIXCHECK
# undef wcspbrk
# if HAVE_RAW_DECL_WCSPBRK
_GL_WARN_ON_USE (wcspbrk, "wcspbrk is unportable - "
                 "use gnulib module wcspbrk for portability");
# endif
#endif


/* Find the first occurrence of NEEDLE in HAYSTACK.  */
#if @GNULIB_WCSSTR@
# if !@HAVE_WCSSTR@
_GL_FUNCDECL_SYS (wcsstr, wchar_t *,
                  (const wchar_t *haystack, const wchar_t *needle)
                  _GL_ATTRIBUTE_PURE);
# endif
  /* On some systems, this function is defined as an overloaded function:
       extern "C++" {
         const wchar_t * std::wcsstr (const wchar_t *, const wchar_t *);
         wchar_t * std::wcsstr (wchar_t *, const wchar_t *);
       }  */
_GL_CXXALIAS_SYS_CAST2 (wcsstr,
                        wchar_t *, (const wchar_t *, const wchar_t *),
                        const wchar_t *, (const wchar_t *, const wchar_t *));
# if ((__GLIBC__ == 2 && __GLIBC_MINOR__ >= 10) && !defined __UCLIBC__) \
     && (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 4))
_GL_CXXALIASWARN1 (wcsstr, wchar_t *,
                   (wchar_t *haystack, const wchar_t *needle));
_GL_CXXALIASWARN1 (wcsstr, const wchar_t *,
                   (const wchar_t *haystack, const wchar_t *needle));
# else
_GL_CXXALIASWARN (wcsstr);
# endif
#elif defined GNULIB_POSIXCHECK
# undef wcsstr
# if HAVE_RAW_DECL_WCSSTR
_GL_WARN_ON_USE (wcsstr, "wcsstr is unportable - "
                 "use gnulib module wcsstr for portability");
# endif
#endif


/* Divide WCS into tokens separated by characters in DELIM.  */
#if @GNULIB_WCSTOK@
# if !@HAVE_WCSTOK@
_GL_FUNCDECL_SYS (wcstok, wchar_t *,
                  (wchar_t *wcs, const wchar_t *delim, wchar_t **ptr));
# endif
_GL_CXXALIAS_SYS (wcstok, wchar_t *,
                  (wchar_t *wcs, const wchar_t *delim, wchar_t **ptr));
_GL_CXXALIASWARN (wcstok);
#elif defined GNULIB_POSIXCHECK
# undef wcstok
# if HAVE_RAW_DECL_WCSTOK
_GL_WARN_ON_USE (wcstok, "wcstok is unportable - "
                 "use gnulib module wcstok for portability");
# endif
#endif


/* Determine number of column positions required for first N wide
   characters (or fewer if S ends before this) in S.  */
#if @GNULIB_WCSWIDTH@
# if @REPLACE_WCSWIDTH@
#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
#   undef wcswidth
#   define wcswidth rpl_wcswidth
#  endif
_GL_FUNCDECL_RPL (wcswidth, int, (const wchar_t *s, size_t n)
                                 _GL_ATTRIBUTE_PURE);
_GL_CXXALIAS_RPL (wcswidth, int, (const wchar_t *s, size_t n));
# else
#  if !@HAVE_WCSWIDTH@
_GL_FUNCDECL_SYS (wcswidth, int, (const wchar_t *s, size_t n)
                                 _GL_ATTRIBUTE_PURE);
#  endif
_GL_CXXALIAS_SYS (wcswidth, int, (const wchar_t *s, size_t n));
# endif
_GL_CXXALIASWARN (wcswidth);
#elif defined GNULIB_POSIXCHECK
# undef wcswidth
# if HAVE_RAW_DECL_WCSWIDTH
_GL_WARN_ON_USE (wcswidth, "wcswidth is unportable - "
                 "use gnulib module wcswidth for portability");
# endif
#endif


/* Convert *TP to a date and time wide string.  See
   <http://pubs.opengroup.org/onlinepubs/9699919799/functions/wcsftime.html>.  */
#if @GNULIB_WCSFTIME@
# if @REPLACE_WCSFTIME@
#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
#   undef wcsftime
#   define wcsftime rpl_wcsftime
#  endif
_GL_FUNCDECL_RPL (wcsftime, size_t, (wchar_t *__buf, size_t __bufsize,
                                     const wchar_t *__fmt, const struct tm *__tp)
                                    _GL_ARG_NONNULL ((1, 3, 4)));
_GL_CXXALIAS_RPL (wcsftime, size_t, (wchar_t *__buf, size_t __bufsize,
                                     const wchar_t *__fmt, const struct tm *__tp));
# else
#  if !@HAVE_WCSFTIME@
_GL_FUNCDECL_SYS (wcsftime, size_t, (wchar_t *__buf, size_t __bufsize,
                                     const wchar_t *__fmt, const struct tm *__tp)
                                    _GL_ARG_NONNULL ((1, 3, 4)));
#  endif
_GL_CXXALIAS_SYS (wcsftime, size_t, (wchar_t *__buf, size_t __bufsize,
                                     const wchar_t *__fmt, const struct tm *__tp));
# endif
_GL_CXXALIASWARN (wcsftime);
#elif defined GNULIB_POSIXCHECK
# undef wcsftime
# if HAVE_RAW_DECL_WCSFTIME
_GL_WARN_ON_USE (wcsftime, "wcsftime is unportable - "
                 "use gnulib module wcsftime for portability");
# endif
#endif


#endif /* _@GUARD_PREFIX@_WCHAR_H */
#endif /* _@GUARD_PREFIX@_WCHAR_H */
#endif
