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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
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