--- /dev/null
+/* Copyright (C) 1995-2018 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library 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 of the License, or (at your option) any later version.
+
+ The GNU C Library 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 the GNU C Library; if not, see
+ <http://www.gnu.org/licenses/>. */
+
+/*
+ * ISO C99 Standard: 7.24
+ * Extended multibyte and wide character utilities <wchar.h>
+ */
+
+#ifndef _WCHAR_H
+#define _WCHAR_H 1
+
+#define __GLIBC_INTERNAL_STARTING_HEADER_IMPLEMENTATION
+#include <bits/libc-header-start.h>
+
+/* Gather machine dependent type support. */
+#include <bits/floatn.h>
+
+#define __need_size_t
+#define __need_wchar_t
+#define __need_NULL
+#include <stddef.h>
+
+#define __need___va_list
+#include <stdarg.h>
+
+#include <bits/wchar.h>
+#include <bits/types/wint_t.h>
+#include <bits/types/mbstate_t.h>
+#include <bits/types/__FILE.h>
+
+#if defined __USE_UNIX98 || defined __USE_XOPEN2K
+# include <bits/types/FILE.h>
+#endif
+#ifdef __USE_XOPEN2K8
+# include <bits/types/locale_t.h>
+#endif
+
+/* Tell the caller that we provide correct C++ prototypes. */
+#if defined __cplusplus && __GNUC_PREREQ (4, 4)
+# define __CORRECT_ISO_CPP_WCHAR_H_PROTO
+#endif
+
+#ifndef WCHAR_MIN
+/* These constants might also be defined in <inttypes.h>. */
+# define WCHAR_MIN __WCHAR_MIN
+# define WCHAR_MAX __WCHAR_MAX
+#endif
+
+#ifndef WEOF
+# define WEOF (0xffffffffu)
+#endif
+
+/* All versions of XPG prior to the publication of ISO C99 required
+ the bulk of <wctype.h>'s declarations to appear in this header
+ (because <wctype.h> did not exist prior to C99). In POSIX.1-2001
+ those declarations were marked as XSI extensions; in -2008 they
+ were additionally marked as obsolescent. _GNU_SOURCE mode
+ anticipates the removal of these declarations in the next revision
+ of POSIX. */
+#if (defined __USE_XOPEN && !defined __USE_GNU \
+ && !(defined __USE_XOPEN2K && !defined __USE_XOPEN2KXSI))
+# include <bits/wctype-wchar.h>
+#endif
+
+__BEGIN_DECLS
+
+/* This incomplete type is defined in <time.h> but needed here because
+ of `wcsftime'. */
+struct tm;
+
+
+/* Copy SRC to DEST. */
+extern wchar_t *wcscpy (wchar_t *__restrict __dest,
+ const wchar_t *__restrict __src)
+ __THROW __nonnull ((1, 2));
+
+/* Copy no more than N wide-characters of SRC to DEST. */
+extern wchar_t *wcsncpy (wchar_t *__restrict __dest,
+ const wchar_t *__restrict __src, size_t __n)
+ __THROW __nonnull ((1, 2));
+
+/* Append SRC onto DEST. */
+extern wchar_t *wcscat (wchar_t *__restrict __dest,
+ const wchar_t *__restrict __src)
+ __THROW __nonnull ((1, 2));
+/* Append no more than N wide-characters of SRC onto DEST. */
+extern wchar_t *wcsncat (wchar_t *__restrict __dest,
+ const wchar_t *__restrict __src, size_t __n)
+ __THROW __nonnull ((1, 2));
+
+/* Compare S1 and S2. */
+extern int wcscmp (const wchar_t *__s1, const wchar_t *__s2)
+ __THROW __attribute_pure__ __nonnull ((1, 2));
+/* Compare N wide-characters of S1 and S2. */
+extern int wcsncmp (const wchar_t *__s1, const wchar_t *__s2, size_t __n)
+ __THROW __attribute_pure__ __nonnull ((1, 2));
+
+#ifdef __USE_XOPEN2K8
+/* Compare S1 and S2, ignoring case. */
+extern int wcscasecmp (const wchar_t *__s1, const wchar_t *__s2) __THROW;
+
+/* Compare no more than N chars of S1 and S2, ignoring case. */
+extern int wcsncasecmp (const wchar_t *__s1, const wchar_t *__s2,
+ size_t __n) __THROW;
+
+/* Similar to the two functions above but take the information from
+ the provided locale and not the global locale. */
+extern int wcscasecmp_l (const wchar_t *__s1, const wchar_t *__s2,
+ locale_t __loc) __THROW;
+
+extern int wcsncasecmp_l (const wchar_t *__s1, const wchar_t *__s2,
+ size_t __n, locale_t __loc) __THROW;
+#endif
+
+/* Compare S1 and S2, both interpreted as appropriate to the
+ LC_COLLATE category of the current locale. */
+extern int wcscoll (const wchar_t *__s1, const wchar_t *__s2) __THROW;
+/* 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. */
+extern size_t wcsxfrm (wchar_t *__restrict __s1,
+ const wchar_t *__restrict __s2, size_t __n) __THROW;
+
+#ifdef __USE_XOPEN2K8
+/* Similar to the two functions above but take the information from
+ the provided locale and not the global locale. */
+
+/* Compare S1 and S2, both interpreted as appropriate to the
+ LC_COLLATE category of the given locale. */
+extern int wcscoll_l (const wchar_t *__s1, const wchar_t *__s2,
+ locale_t __loc) __THROW;
+
+/* 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. */
+extern size_t wcsxfrm_l (wchar_t *__s1, const wchar_t *__s2,
+ size_t __n, locale_t __loc) __THROW;
+
+/* Duplicate S, returning an identical malloc'd string. */
+extern wchar_t *wcsdup (const wchar_t *__s) __THROW __attribute_malloc__;
+#endif
+
+/* Find the first occurrence of WC in WCS. */
+#ifdef __CORRECT_ISO_CPP_WCHAR_H_PROTO
+extern "C++" wchar_t *wcschr (wchar_t *__wcs, wchar_t __wc)
+ __THROW __asm ("wcschr") __attribute_pure__;
+extern "C++" const wchar_t *wcschr (const wchar_t *__wcs, wchar_t __wc)
+ __THROW __asm ("wcschr") __attribute_pure__;
+#else
+extern wchar_t *wcschr (const wchar_t *__wcs, wchar_t __wc)
+ __THROW __attribute_pure__;
+#endif
+/* Find the last occurrence of WC in WCS. */
+#ifdef __CORRECT_ISO_CPP_WCHAR_H_PROTO
+extern "C++" wchar_t *wcsrchr (wchar_t *__wcs, wchar_t __wc)
+ __THROW __asm ("wcsrchr") __attribute_pure__;
+extern "C++" const wchar_t *wcsrchr (const wchar_t *__wcs, wchar_t __wc)
+ __THROW __asm ("wcsrchr") __attribute_pure__;
+#else
+extern wchar_t *wcsrchr (const wchar_t *__wcs, wchar_t __wc)
+ __THROW __attribute_pure__;
+#endif
+
+#ifdef __USE_GNU
+/* This function is similar to `wcschr'. But it returns a pointer to
+ the closing NUL wide character in case C is not found in S. */
+extern wchar_t *wcschrnul (const wchar_t *__s, wchar_t __wc)
+ __THROW __attribute_pure__;
+#endif
+
+/* Return the length of the initial segmet of WCS which
+ consists entirely of wide characters not in REJECT. */
+extern size_t wcscspn (const wchar_t *__wcs, const wchar_t *__reject)
+ __THROW __attribute_pure__;
+/* Return the length of the initial segmet of WCS which
+ consists entirely of wide characters in ACCEPT. */
+extern size_t wcsspn (const wchar_t *__wcs, const wchar_t *__accept)
+ __THROW __attribute_pure__;
+/* Find the first occurrence in WCS of any character in ACCEPT. */
+#ifdef __CORRECT_ISO_CPP_WCHAR_H_PROTO
+extern "C++" wchar_t *wcspbrk (wchar_t *__wcs, const wchar_t *__accept)
+ __THROW __asm ("wcspbrk") __attribute_pure__;
+extern "C++" const wchar_t *wcspbrk (const wchar_t *__wcs,
+ const wchar_t *__accept)
+ __THROW __asm ("wcspbrk") __attribute_pure__;
+#else
+extern wchar_t *wcspbrk (const wchar_t *__wcs, const wchar_t *__accept)
+ __THROW __attribute_pure__;
+#endif
+/* Find the first occurrence of NEEDLE in HAYSTACK. */
+#ifdef __CORRECT_ISO_CPP_WCHAR_H_PROTO
+extern "C++" wchar_t *wcsstr (wchar_t *__haystack, const wchar_t *__needle)
+ __THROW __asm ("wcsstr") __attribute_pure__;
+extern "C++" const wchar_t *wcsstr (const wchar_t *__haystack,
+ const wchar_t *__needle)
+ __THROW __asm ("wcsstr") __attribute_pure__;
+#else
+extern wchar_t *wcsstr (const wchar_t *__haystack, const wchar_t *__needle)
+ __THROW __attribute_pure__;
+#endif
+
+/* Divide WCS into tokens separated by characters in DELIM. */
+extern wchar_t *wcstok (wchar_t *__restrict __s,
+ const wchar_t *__restrict __delim,
+ wchar_t **__restrict __ptr) __THROW;
+
+/* Return the number of wide characters in S. */
+extern size_t wcslen (const wchar_t *__s) __THROW __attribute_pure__;
+
+#ifdef __USE_XOPEN
+/* Another name for `wcsstr' from XPG4. */
+# ifdef __CORRECT_ISO_CPP_WCHAR_H_PROTO
+extern "C++" wchar_t *wcswcs (wchar_t *__haystack, const wchar_t *__needle)
+ __THROW __asm ("wcswcs") __attribute_pure__;
+extern "C++" const wchar_t *wcswcs (const wchar_t *__haystack,
+ const wchar_t *__needle)
+ __THROW __asm ("wcswcs") __attribute_pure__;
+# else
+extern wchar_t *wcswcs (const wchar_t *__haystack, const wchar_t *__needle)
+ __THROW __attribute_pure__;
+# endif
+#endif
+
+#ifdef __USE_XOPEN2K8
+/* Return the number of wide characters in S, but at most MAXLEN. */
+extern size_t wcsnlen (const wchar_t *__s, size_t __maxlen)
+ __THROW __attribute_pure__;
+#endif
+
+
+/* Search N wide characters of S for C. */
+#ifdef __CORRECT_ISO_CPP_WCHAR_H_PROTO
+extern "C++" wchar_t *wmemchr (wchar_t *__s, wchar_t __c, size_t __n)
+ __THROW __asm ("wmemchr") __attribute_pure__;
+extern "C++" const wchar_t *wmemchr (const wchar_t *__s, wchar_t __c,
+ size_t __n)
+ __THROW __asm ("wmemchr") __attribute_pure__;
+#else
+extern wchar_t *wmemchr (const wchar_t *__s, wchar_t __c, size_t __n)
+ __THROW __attribute_pure__;
+#endif
+
+/* Compare N wide characters of S1 and S2. */
+extern int wmemcmp (const wchar_t *__s1, const wchar_t *__s2, size_t __n)
+ __THROW __attribute_pure__;
+
+/* Copy N wide characters of SRC to DEST. */
+extern wchar_t *wmemcpy (wchar_t *__restrict __s1,
+ const wchar_t *__restrict __s2, size_t __n) __THROW;
+
+/* Copy N wide characters of SRC to DEST, guaranteeing
+ correct behavior for overlapping strings. */
+extern wchar_t *wmemmove (wchar_t *__s1, const wchar_t *__s2, size_t __n)
+ __THROW;
+
+/* Set N wide characters of S to C. */
+extern wchar_t *wmemset (wchar_t *__s, wchar_t __c, size_t __n) __THROW;
+
+#ifdef __USE_GNU
+/* Copy N wide characters of SRC to DEST and return pointer to following
+ wide character. */
+extern wchar_t *wmempcpy (wchar_t *__restrict __s1,
+ const wchar_t *__restrict __s2, size_t __n)
+ __THROW;
+#endif
+
+
+/* Determine whether C constitutes a valid (one-byte) multibyte
+ character. */
+extern wint_t btowc (int __c) __THROW;
+
+/* Determine whether C corresponds to a member of the extended
+ character set whose multibyte representation is a single byte. */
+extern int wctob (wint_t __c) __THROW;
+
+/* Determine whether PS points to an object representing the initial
+ state. */
+extern int mbsinit (const mbstate_t *__ps) __THROW __attribute_pure__;
+
+/* Write wide character representation of multibyte character pointed
+ to by S to PWC. */
+extern size_t mbrtowc (wchar_t *__restrict __pwc,
+ const char *__restrict __s, size_t __n,
+ mbstate_t *__restrict __p) __THROW;
+
+/* Write multibyte representation of wide character WC to S. */
+extern size_t wcrtomb (char *__restrict __s, wchar_t __wc,
+ mbstate_t *__restrict __ps) __THROW;
+
+/* Return number of bytes in multibyte character pointed to by S. */
+extern size_t __mbrlen (const char *__restrict __s, size_t __n,
+ mbstate_t *__restrict __ps) __THROW;
+extern size_t mbrlen (const char *__restrict __s, size_t __n,
+ mbstate_t *__restrict __ps) __THROW;
+
+#ifdef __USE_EXTERN_INLINES
+/* Define inline function as optimization. */
+
+/* We can use the BTOWC and WCTOB optimizations since we know that all
+ locales must use ASCII encoding for the values in the ASCII range
+ and because the wchar_t encoding is always ISO 10646. */
+extern wint_t __btowc_alias (int __c) __asm ("btowc");
+__extern_inline wint_t
+__NTH (btowc (int __c))
+{ return (__builtin_constant_p (__c) && __c >= '\0' && __c <= '\x7f'
+ ? (wint_t) __c : __btowc_alias (__c)); }
+
+extern int __wctob_alias (wint_t __c) __asm ("wctob");
+__extern_inline int
+__NTH (wctob (wint_t __wc))
+{ return (__builtin_constant_p (__wc) && __wc >= L'\0' && __wc <= L'\x7f'
+ ? (int) __wc : __wctob_alias (__wc)); }
+
+__extern_inline size_t
+__NTH (mbrlen (const char *__restrict __s, size_t __n,
+ mbstate_t *__restrict __ps))
+{ return (__ps != NULL
+ ? mbrtowc (NULL, __s, __n, __ps) : __mbrlen (__s, __n, NULL)); }
+#endif
+
+/* Write wide character representation of multibyte character string
+ SRC to DST. */
+extern size_t mbsrtowcs (wchar_t *__restrict __dst,
+ const char **__restrict __src, size_t __len,
+ mbstate_t *__restrict __ps) __THROW;
+
+/* Write multibyte character representation of wide character string
+ SRC to DST. */
+extern size_t wcsrtombs (char *__restrict __dst,
+ const wchar_t **__restrict __src, size_t __len,
+ mbstate_t *__restrict __ps) __THROW;
+
+
+#ifdef __USE_XOPEN2K8
+/* Write wide character representation of at most NMC bytes of the
+ multibyte character string SRC to DST. */
+extern size_t mbsnrtowcs (wchar_t *__restrict __dst,
+ const char **__restrict __src, size_t __nmc,
+ size_t __len, mbstate_t *__restrict __ps) __THROW;
+
+/* Write multibyte character representation of at most NWC characters
+ from the wide character string SRC to DST. */
+extern size_t wcsnrtombs (char *__restrict __dst,
+ const wchar_t **__restrict __src,
+ size_t __nwc, size_t __len,
+ mbstate_t *__restrict __ps) __THROW;
+#endif /* use POSIX 2008 */
+
+
+/* The following functions are extensions found in X/Open CAE. */
+#ifdef __USE_XOPEN
+/* Determine number of column positions required for C. */
+extern int wcwidth (wchar_t __c) __THROW;
+
+/* Determine number of column positions required for first N wide
+ characters (or fewer if S ends before this) in S. */
+extern int wcswidth (const wchar_t *__s, size_t __n) __THROW;
+#endif /* Use X/Open. */
+
+
+/* Convert initial portion of the wide string NPTR to `double'
+ representation. */
+extern double wcstod (const wchar_t *__restrict __nptr,
+ wchar_t **__restrict __endptr) __THROW;
+
+#ifdef __USE_ISOC99
+/* Likewise for `float' and `long double' sizes of floating-point numbers. */
+extern float wcstof (const wchar_t *__restrict __nptr,
+ wchar_t **__restrict __endptr) __THROW;
+extern long double wcstold (const wchar_t *__restrict __nptr,
+ wchar_t **__restrict __endptr) __THROW;
+#endif /* C99 */
+
+/* Likewise for `_FloatN' and `_FloatNx' when support is enabled. */
+
+#if __HAVE_FLOAT16 && defined __USE_GNU
+extern _Float16 wcstof16 (const wchar_t *__restrict __nptr,
+ wchar_t **__restrict __endptr) __THROW;
+#endif
+
+#if __HAVE_FLOAT32 && defined __USE_GNU
+extern _Float32 wcstof32 (const wchar_t *__restrict __nptr,
+ wchar_t **__restrict __endptr) __THROW;
+#endif
+
+#if __HAVE_FLOAT64 && defined __USE_GNU
+extern _Float64 wcstof64 (const wchar_t *__restrict __nptr,
+ wchar_t **__restrict __endptr) __THROW;
+#endif
+
+#if __HAVE_FLOAT128 && defined __USE_GNU
+extern _Float128 wcstof128 (const wchar_t *__restrict __nptr,
+ wchar_t **__restrict __endptr) __THROW;
+#endif
+
+#if __HAVE_FLOAT32X && defined __USE_GNU
+extern _Float32x wcstof32x (const wchar_t *__restrict __nptr,
+ wchar_t **__restrict __endptr) __THROW;
+#endif
+
+#if __HAVE_FLOAT64X && defined __USE_GNU
+extern _Float64x wcstof64x (const wchar_t *__restrict __nptr,
+ wchar_t **__restrict __endptr) __THROW;
+#endif
+
+#if __HAVE_FLOAT128X && defined __USE_GNU
+extern _Float128x wcstof128x (const wchar_t *__restrict __nptr,
+ wchar_t **__restrict __endptr) __THROW;
+#endif
+
+
+/* Convert initial portion of wide string NPTR to `long int'
+ representation. */
+extern long int wcstol (const wchar_t *__restrict __nptr,
+ wchar_t **__restrict __endptr, int __base) __THROW;
+
+/* Convert initial portion of wide string NPTR to `unsigned long int'
+ representation. */
+extern unsigned long int wcstoul (const wchar_t *__restrict __nptr,
+ wchar_t **__restrict __endptr, int __base)
+ __THROW;
+
+#ifdef __USE_ISOC99
+/* Convert initial portion of wide string NPTR to `long long int'
+ representation. */
+__extension__
+extern long long int wcstoll (const wchar_t *__restrict __nptr,
+ wchar_t **__restrict __endptr, int __base)
+ __THROW;
+
+/* Convert initial portion of wide string NPTR to `unsigned long long int'
+ representation. */
+__extension__
+extern unsigned long long int wcstoull (const wchar_t *__restrict __nptr,
+ wchar_t **__restrict __endptr,
+ int __base) __THROW;
+#endif /* ISO C99. */
+
+#ifdef __USE_GNU
+/* Convert initial portion of wide string NPTR to `long long int'
+ representation. */
+__extension__
+extern long long int wcstoq (const wchar_t *__restrict __nptr,
+ wchar_t **__restrict __endptr, int __base)
+ __THROW;
+
+/* Convert initial portion of wide string NPTR to `unsigned long long int'
+ representation. */
+__extension__
+extern unsigned long long int wcstouq (const wchar_t *__restrict __nptr,
+ wchar_t **__restrict __endptr,
+ int __base) __THROW;
+#endif /* Use GNU. */
+
+#ifdef __USE_GNU
+/* Parallel versions of the functions above which take the locale to
+ use as an additional parameter. These are GNU extensions inspired
+ by the POSIX.1-2008 extended locale API. */
+extern long int wcstol_l (const wchar_t *__restrict __nptr,
+ wchar_t **__restrict __endptr, int __base,
+ locale_t __loc) __THROW;
+
+extern unsigned long int wcstoul_l (const wchar_t *__restrict __nptr,
+ wchar_t **__restrict __endptr,
+ int __base, locale_t __loc) __THROW;
+
+__extension__
+extern long long int wcstoll_l (const wchar_t *__restrict __nptr,
+ wchar_t **__restrict __endptr,
+ int __base, locale_t __loc) __THROW;
+
+__extension__
+extern unsigned long long int wcstoull_l (const wchar_t *__restrict __nptr,
+ wchar_t **__restrict __endptr,
+ int __base, locale_t __loc)
+ __THROW;
+
+extern double wcstod_l (const wchar_t *__restrict __nptr,
+ wchar_t **__restrict __endptr, locale_t __loc)
+ __THROW;
+
+extern float wcstof_l (const wchar_t *__restrict __nptr,
+ wchar_t **__restrict __endptr, locale_t __loc)
+ __THROW;
+
+extern long double wcstold_l (const wchar_t *__restrict __nptr,
+ wchar_t **__restrict __endptr,
+ locale_t __loc) __THROW;
+
+# if __HAVE_FLOAT16
+extern _Float16 wcstof16_l (const wchar_t *__restrict __nptr,
+ wchar_t **__restrict __endptr,
+ locale_t __loc) __THROW;
+# endif
+
+# if __HAVE_FLOAT32
+extern _Float32 wcstof32_l (const wchar_t *__restrict __nptr,
+ wchar_t **__restrict __endptr,
+ locale_t __loc) __THROW;
+# endif
+
+# if __HAVE_FLOAT64
+extern _Float64 wcstof64_l (const wchar_t *__restrict __nptr,
+ wchar_t **__restrict __endptr,
+ locale_t __loc) __THROW;
+# endif
+
+# if __HAVE_FLOAT128
+extern _Float128 wcstof128_l (const wchar_t *__restrict __nptr,
+ wchar_t **__restrict __endptr,
+ locale_t __loc) __THROW;
+# endif
+
+# if __HAVE_FLOAT32X
+extern _Float32x wcstof32x_l (const wchar_t *__restrict __nptr,
+ wchar_t **__restrict __endptr,
+ locale_t __loc) __THROW;
+# endif
+
+# if __HAVE_FLOAT64X
+extern _Float64x wcstof64x_l (const wchar_t *__restrict __nptr,
+ wchar_t **__restrict __endptr,
+ locale_t __loc) __THROW;
+# endif
+
+# if __HAVE_FLOAT128X
+extern _Float128x wcstof128x_l (const wchar_t *__restrict __nptr,
+ wchar_t **__restrict __endptr,
+ locale_t __loc) __THROW;
+# endif
+#endif /* use GNU */
+
+
+#ifdef __USE_XOPEN2K8
+/* Copy SRC to DEST, returning the address of the terminating L'\0' in
+ DEST. */
+extern wchar_t *wcpcpy (wchar_t *__restrict __dest,
+ const wchar_t *__restrict __src) __THROW;
+
+/* Copy no more than N characters of SRC to DEST, returning the address of
+ the last character written into DEST. */
+extern wchar_t *wcpncpy (wchar_t *__restrict __dest,
+ const wchar_t *__restrict __src, size_t __n)
+ __THROW;
+#endif
+
+
+/* Wide character I/O functions. */
+
+#if defined __USE_XOPEN2K8 || __GLIBC_USE (LIB_EXT2)
+/* Like OPEN_MEMSTREAM, but the stream is wide oriented and produces
+ a wide character string. */
+extern __FILE *open_wmemstream (wchar_t **__bufloc, size_t *__sizeloc) __THROW;
+#endif
+
+#if defined __USE_ISOC95 || defined __USE_UNIX98
+
+/* Select orientation for stream. */
+extern int fwide (__FILE *__fp, int __mode) __THROW;
+
+
+/* Write formatted output to STREAM.
+
+ This function is a possible cancellation point and therefore not
+ marked with __THROW. */
+extern int fwprintf (__FILE *__restrict __stream,
+ const wchar_t *__restrict __format, ...)
+ /* __attribute__ ((__format__ (__wprintf__, 2, 3))) */;
+/* Write formatted output to stdout.
+
+ This function is a possible cancellation point and therefore not
+ marked with __THROW. */
+extern int wprintf (const wchar_t *__restrict __format, ...)
+ /* __attribute__ ((__format__ (__wprintf__, 1, 2))) */;
+/* Write formatted output of at most N characters to S. */
+extern int swprintf (wchar_t *__restrict __s, size_t __n,
+ const wchar_t *__restrict __format, ...)
+ __THROW /* __attribute__ ((__format__ (__wprintf__, 3, 4))) */;
+
+/* Write formatted output to S from argument list ARG.
+
+ This function is a possible cancellation point and therefore not
+ marked with __THROW. */
+extern int vfwprintf (__FILE *__restrict __s,
+ const wchar_t *__restrict __format,
+ __gnuc_va_list __arg)
+ /* __attribute__ ((__format__ (__wprintf__, 2, 0))) */;
+/* Write formatted output to stdout from argument list ARG.
+
+ This function is a possible cancellation point and therefore not
+ marked with __THROW. */
+extern int vwprintf (const wchar_t *__restrict __format,
+ __gnuc_va_list __arg)
+ /* __attribute__ ((__format__ (__wprintf__, 1, 0))) */;
+/* Write formatted output of at most N character to S from argument
+ list ARG. */
+extern int vswprintf (wchar_t *__restrict __s, size_t __n,
+ const wchar_t *__restrict __format,
+ __gnuc_va_list __arg)
+ __THROW /* __attribute__ ((__format__ (__wprintf__, 3, 0))) */;
+
+
+/* Read formatted input from STREAM.
+
+ This function is a possible cancellation point and therefore not
+ marked with __THROW. */
+extern int fwscanf (__FILE *__restrict __stream,
+ const wchar_t *__restrict __format, ...)
+ /* __attribute__ ((__format__ (__wscanf__, 2, 3))) */;
+/* Read formatted input from stdin.
+
+ This function is a possible cancellation point and therefore not
+ marked with __THROW. */
+extern int wscanf (const wchar_t *__restrict __format, ...)
+ /* __attribute__ ((__format__ (__wscanf__, 1, 2))) */;
+/* Read formatted input from S. */
+extern int swscanf (const wchar_t *__restrict __s,
+ const wchar_t *__restrict __format, ...)
+ __THROW /* __attribute__ ((__format__ (__wscanf__, 2, 3))) */;
+
+# if defined __USE_ISOC99 && !defined __USE_GNU \
+ && (!defined __LDBL_COMPAT || !defined __REDIRECT) \
+ && (defined __STRICT_ANSI__ || defined __USE_XOPEN2K)
+# ifdef __REDIRECT
+/* For strict ISO C99 or POSIX compliance disallow %as, %aS and %a[
+ GNU extension which conflicts with valid %a followed by letter
+ s, S or [. */
+extern int __REDIRECT (fwscanf, (__FILE *__restrict __stream,
+ const wchar_t *__restrict __format, ...),
+ __isoc99_fwscanf)
+ /* __attribute__ ((__format__ (__wscanf__, 2, 3))) */;
+extern int __REDIRECT (wscanf, (const wchar_t *__restrict __format, ...),
+ __isoc99_wscanf)
+ /* __attribute__ ((__format__ (__wscanf__, 1, 2))) */;
+extern int __REDIRECT_NTH (swscanf, (const wchar_t *__restrict __s,
+ const wchar_t *__restrict __format,
+ ...), __isoc99_swscanf)
+ /* __attribute__ ((__format__ (__wscanf__, 2, 3))) */;
+# else
+extern int __isoc99_fwscanf (__FILE *__restrict __stream,
+ const wchar_t *__restrict __format, ...);
+extern int __isoc99_wscanf (const wchar_t *__restrict __format, ...);
+extern int __isoc99_swscanf (const wchar_t *__restrict __s,
+ const wchar_t *__restrict __format, ...)
+ __THROW;
+# define fwscanf __isoc99_fwscanf
+# define wscanf __isoc99_wscanf
+# define swscanf __isoc99_swscanf
+# endif
+# endif
+
+#endif /* Use ISO C95, C99 and Unix98. */
+
+#ifdef __USE_ISOC99
+/* Read formatted input from S into argument list ARG.
+
+ This function is a possible cancellation point and therefore not
+ marked with __THROW. */
+extern int vfwscanf (__FILE *__restrict __s,
+ const wchar_t *__restrict __format,
+ __gnuc_va_list __arg)
+ /* __attribute__ ((__format__ (__wscanf__, 2, 0))) */;
+/* Read formatted input from stdin into argument list ARG.
+
+ This function is a possible cancellation point and therefore not
+ marked with __THROW. */
+extern int vwscanf (const wchar_t *__restrict __format,
+ __gnuc_va_list __arg)
+ /* __attribute__ ((__format__ (__wscanf__, 1, 0))) */;
+/* Read formatted input from S into argument list ARG. */
+extern int vswscanf (const wchar_t *__restrict __s,
+ const wchar_t *__restrict __format,
+ __gnuc_va_list __arg)
+ __THROW /* __attribute__ ((__format__ (__wscanf__, 2, 0))) */;
+
+# if !defined __USE_GNU \
+ && (!defined __LDBL_COMPAT || !defined __REDIRECT) \
+ && (defined __STRICT_ANSI__ || defined __USE_XOPEN2K)
+# ifdef __REDIRECT
+extern int __REDIRECT (vfwscanf, (__FILE *__restrict __s,
+ const wchar_t *__restrict __format,
+ __gnuc_va_list __arg), __isoc99_vfwscanf)
+ /* __attribute__ ((__format__ (__wscanf__, 2, 0))) */;
+extern int __REDIRECT (vwscanf, (const wchar_t *__restrict __format,
+ __gnuc_va_list __arg), __isoc99_vwscanf)
+ /* __attribute__ ((__format__ (__wscanf__, 1, 0))) */;
+extern int __REDIRECT_NTH (vswscanf, (const wchar_t *__restrict __s,
+ const wchar_t *__restrict __format,
+ __gnuc_va_list __arg), __isoc99_vswscanf)
+ /* __attribute__ ((__format__ (__wscanf__, 2, 0))) */;
+# else
+extern int __isoc99_vfwscanf (__FILE *__restrict __s,
+ const wchar_t *__restrict __format,
+ __gnuc_va_list __arg);
+extern int __isoc99_vwscanf (const wchar_t *__restrict __format,
+ __gnuc_va_list __arg);
+extern int __isoc99_vswscanf (const wchar_t *__restrict __s,
+ const wchar_t *__restrict __format,
+ __gnuc_va_list __arg) __THROW;
+# define vfwscanf __isoc99_vfwscanf
+# define vwscanf __isoc99_vwscanf
+# define vswscanf __isoc99_vswscanf
+# endif
+# endif
+
+#endif /* Use ISO C99. */
+
+
+/* Read a character from STREAM.
+
+ These functions are possible cancellation points and therefore not
+ marked with __THROW. */
+extern wint_t fgetwc (__FILE *__stream);
+extern wint_t getwc (__FILE *__stream);
+
+/* Read a character from stdin.
+
+ This function is a possible cancellation point and therefore not
+ marked with __THROW. */
+extern wint_t getwchar (void);
+
+
+/* Write a character to STREAM.
+
+ These functions are possible cancellation points and therefore not
+ marked with __THROW. */
+extern wint_t fputwc (wchar_t __wc, __FILE *__stream);
+extern wint_t putwc (wchar_t __wc, __FILE *__stream);
+
+/* Write a character to stdout.
+
+ This function is a possible cancellation point and therefore not
+ marked with __THROW. */
+extern wint_t putwchar (wchar_t __wc);
+
+
+/* Get a newline-terminated wide character string of finite length
+ from STREAM.
+
+ This function is a possible cancellation point and therefore not
+ marked with __THROW. */
+extern wchar_t *fgetws (wchar_t *__restrict __ws, int __n,
+ __FILE *__restrict __stream);
+
+/* Write a string to STREAM.
+
+ This function is a possible cancellation point and therefore not
+ marked with __THROW. */
+extern int fputws (const wchar_t *__restrict __ws,
+ __FILE *__restrict __stream);
+
+
+/* Push a character back onto the input buffer of STREAM.
+
+ This function is a possible cancellation point and therefore not
+ marked with __THROW. */
+extern wint_t ungetwc (wint_t __wc, __FILE *__stream);
+
+
+#ifdef __USE_GNU
+/* These are defined to be equivalent to the `char' functions defined
+ in POSIX.1:1996.
+
+ These functions are not part of POSIX and therefore no official
+ cancellation point. But due to similarity with an POSIX interface
+ or due to the implementation they are cancellation points and
+ therefore not marked with __THROW. */
+extern wint_t getwc_unlocked (__FILE *__stream);
+extern wint_t getwchar_unlocked (void);
+
+/* This is the wide character version of a GNU extension.
+
+ This function is not part of POSIX and therefore no official
+ cancellation point. But due to similarity with an POSIX interface
+ or due to the implementation it is a cancellation point and
+ therefore not marked with __THROW. */
+extern wint_t fgetwc_unlocked (__FILE *__stream);
+
+/* Faster version when locking is not necessary.
+
+ This function is not part of POSIX and therefore no official
+ cancellation point. But due to similarity with an POSIX interface
+ or due to the implementation it is a cancellation point and
+ therefore not marked with __THROW. */
+extern wint_t fputwc_unlocked (wchar_t __wc, __FILE *__stream);
+
+/* These are defined to be equivalent to the `char' functions defined
+ in POSIX.1:1996.
+
+ These functions are not part of POSIX and therefore no official
+ cancellation point. But due to similarity with an POSIX interface
+ or due to the implementation they are cancellation points and
+ therefore not marked with __THROW. */
+extern wint_t putwc_unlocked (wchar_t __wc, __FILE *__stream);
+extern wint_t putwchar_unlocked (wchar_t __wc);
+
+
+/* This function does the same as `fgetws' but does not lock the stream.
+
+ This function is not part of POSIX and therefore no official
+ cancellation point. But due to similarity with an POSIX interface
+ or due to the implementation it is a cancellation point and
+ therefore not marked with __THROW. */
+extern wchar_t *fgetws_unlocked (wchar_t *__restrict __ws, int __n,
+ __FILE *__restrict __stream);
+
+/* This function does the same as `fputws' but does not lock the stream.
+
+ This function is not part of POSIX and therefore no official
+ cancellation point. But due to similarity with an POSIX interface
+ or due to the implementation it is a cancellation point and
+ therefore not marked with __THROW. */
+extern int fputws_unlocked (const wchar_t *__restrict __ws,
+ __FILE *__restrict __stream);
+#endif
+
+
+/* Format TP into S according to FORMAT.
+ Write no more than MAXSIZE wide characters and return the number
+ of wide characters written, or 0 if it would exceed MAXSIZE. */
+extern size_t wcsftime (wchar_t *__restrict __s, size_t __maxsize,
+ const wchar_t *__restrict __format,
+ const struct tm *__restrict __tp) __THROW;
+
+# ifdef __USE_GNU
+/* Similar to `wcsftime' but takes the information from
+ the provided locale and not the global locale. */
+extern size_t wcsftime_l (wchar_t *__restrict __s, size_t __maxsize,
+ const wchar_t *__restrict __format,
+ const struct tm *__restrict __tp,
+ locale_t __loc) __THROW;
+# endif
+
+/* Define some macros helping to catch buffer overflows. */
+#if __USE_FORTIFY_LEVEL > 0 && defined __fortify_function
+# include <bits/wchar2.h>
+#endif
+
+#ifdef __LDBL_COMPAT
+# include <bits/wchar-ldbl.h>
+#endif
+
+__END_DECLS
+
+#endif /* wchar.h */