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

   Copyright (C) 2007-2010 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.  */

/* 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

#if defined __need_mbstate_t || defined __need_wint_t || (defined __hpux && ((defined _INTTYPES_INCLUDED && !defined strtoimax) || defined _GL_JUST_INCLUDE_SYSTEM_WCHAR_H)) || defined _GL_ALREADY_INCLUDING_WCHAR_H

/* Special invocation convention:

   - Inside glibc and uClibc header files.

   - 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>.

   - 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 _GL_WCHAR_H

#define _GL_ALREADY_INCLUDING_WCHAR_H

/* 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>.

   But avoid namespace pollution on glibc systems.  */

#ifndef __GLIBC__

# include <stddef.h>

# 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 _GL_WCHAR_H

#define _GL_WCHAR_H

/* 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

# 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@

typedef int rpl_mbstate_t;

# undef mbstate_t

# define mbstate_t rpl_mbstate_t

# define GNULIB_defined_mbstate_t 1

#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_CXXALIAS_RPL (btowc, wint_t, (int c));

# else

#  if !@HAVE_BTOWC@

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

#  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_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));

#  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_CXXALIAS_RPL (wcwidth, int, (wchar_t));

# else

#  if !@HAVE_DECL_WCWIDTH@

/* wcwidth exists but is not declared.  */

_GL_FUNCDECL_SYS (wcwidth, int, (wchar_t));

#  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

#endif /* _GL_WCHAR_H */

#endif /* _GL_WCHAR_H */

#endif