text: /* Copyright (C) 1996-2020 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
     <https://www.gnu.org/licenses/>.  */
  
  /*
   *	ISO C99 Standard: 7.25
   *	Wide character classification and mapping utilities  <wctype.h>
   */
  
  #ifndef _WCTYPE_H
  #define _WCTYPE_H 1
  
  #include <features.h>
  #include <bits/types.h>
  #include <bits/types/wint_t.h>
  
  /* Constant expression of type `wint_t' whose value does not correspond
     to any member of the extended character set.  */
  #ifndef WEOF
  # define WEOF (0xffffffffu)
  #endif
  
  /* Some definitions from this header also appear in <wchar.h> in
     Unix98 mode.  */
  #include <bits/wctype-wchar.h>
  
  /*
   * Extensible wide-character mapping functions: 7.15.3.2.
   */
  
  __BEGIN_DECLS
  
  /* Scalar type that can hold values which represent locale-specific
     character mappings.  */
  typedef const __int32_t *wctrans_t;
  
  /* Construct value that describes a mapping between wide characters
     identified by the string argument PROPERTY.  */
  extern wctrans_t wctrans (const char *__property) __THROW;
  
  /* Map the wide character WC using the mapping described by DESC.  */
  extern wint_t towctrans (wint_t __wc, wctrans_t __desc) __THROW;
  
  # ifdef __USE_XOPEN2K8
  /* POSIX.1-2008 extended locale interface (see locale.h).  */
  #  include <bits/types/locale_t.h>
  
  /* Test for any wide character for which `iswalpha' or `iswdigit' is
     true.  */
  extern int iswalnum_l (wint_t __wc, locale_t __locale) __THROW;
  
  /* Test for any wide character for which `iswupper' or 'iswlower' is
     true, or any wide character that is one of a locale-specific set of
     wide-characters for which none of `iswcntrl', `iswdigit',
     `iswpunct', or `iswspace' is true.  */
  extern int iswalpha_l (wint_t __wc, locale_t __locale) __THROW;
  
  /* Test for any control wide character.  */
  extern int iswcntrl_l (wint_t __wc, locale_t __locale) __THROW;
  
  /* Test for any wide character that corresponds to a decimal-digit
     character.  */
  extern int iswdigit_l (wint_t __wc, locale_t __locale) __THROW;
  
  /* Test for any wide character for which `iswprint' is true and
     `iswspace' is false.  */
  extern int iswgraph_l (wint_t __wc, locale_t __locale) __THROW;
  
  /* Test for any wide character that corresponds to a lowercase letter
     or is one of a locale-specific set of wide characters for which
     none of `iswcntrl', `iswdigit', `iswpunct', or `iswspace' is true.  */
  extern int iswlower_l (wint_t __wc, locale_t __locale) __THROW;
  
  /* Test for any printing wide character.  */
  extern int iswprint_l (wint_t __wc, locale_t __locale) __THROW;
  
  /* Test for any printing wide character that is one of a
     locale-specific et of wide characters for which neither `iswspace'
     nor `iswalnum' is true.  */
  extern int iswpunct_l (wint_t __wc, locale_t __locale) __THROW;
  
  /* Test for any wide character that corresponds to a locale-specific
     set of wide characters for which none of `iswalnum', `iswgraph', or
     `iswpunct' is true.  */
  extern int iswspace_l (wint_t __wc, locale_t __locale) __THROW;
  
  /* Test for any wide character that corresponds to an uppercase letter
     or is one of a locale-specific set of wide character for which none
     of `iswcntrl', `iswdigit', `iswpunct', or `iswspace' is true.  */
  extern int iswupper_l (wint_t __wc, locale_t __locale) __THROW;
  
  /* Test for any wide character that corresponds to a hexadecimal-digit
     character equivalent to that performed be the functions described
     in the previous subclause.  */
  extern int iswxdigit_l (wint_t __wc, locale_t __locale) __THROW;
  
  /* Test for any wide character that corresponds to a standard blank
     wide character or a locale-specific set of wide characters for
     which `iswalnum' is false.  */
  extern int iswblank_l (wint_t __wc, locale_t __locale) __THROW;
  
  /* Construct value that describes a class of wide characters identified
     by the string argument PROPERTY.  */
  extern wctype_t wctype_l (const char *__property, locale_t __locale)
       __THROW;
  
  /* Determine whether the wide-character WC has the property described by
     DESC.  */
  extern int iswctype_l (wint_t __wc, wctype_t __desc, locale_t __locale)
       __THROW;
  
  /*
   * Wide-character case-mapping functions.
   */
  
  /* Converts an uppercase letter to the corresponding lowercase letter.  */
  extern wint_t towlower_l (wint_t __wc, locale_t __locale) __THROW;
  
  /* Converts an lowercase letter to the corresponding uppercase letter.  */
  extern wint_t towupper_l (wint_t __wc, locale_t __locale) __THROW;
  
  /* Construct value that describes a mapping between wide characters
     identified by the string argument PROPERTY.  */
  extern wctrans_t wctrans_l (const char *__property, locale_t __locale)
       __THROW;
  
  /* Map the wide character WC using the mapping described by DESC.  */
  extern wint_t towctrans_l (wint_t __wc, wctrans_t __desc,
  			   locale_t __locale) __THROW;
  
  # endif /* Use POSIX 2008.  */
  
  __END_DECLS
  
  #endif /* wctype.h  */
  