wctype/iswctype_l.c

   1 /* Copyright (C) 1996, 1997 Free Software Foundation, Inc.
   2    This file is part of the GNU C Library.
   3    Contributed by Ulrich Drepper <drepper@gnu.ai.mit.edu>, 1996.
   4
   5    The GNU C Library is free software; you can redistribute it and/or
   6    modify it under the terms of the GNU Library General Public License as
   7    published by the Free Software Foundation; either version 2 of the
   8    License, or (at your option) any later version.
   9
  10    The GNU C Library is distributed in the hope that it will be useful,
  11    but WITHOUT ANY WARRANTY; without even the implied warranty of
  12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13    Library General Public License for more details.
  14
  15    You should have received a copy of the GNU Library General Public
  16    License along with the GNU C Library; see the file COPYING.LIB.  If not,
  17    write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  18    Boston, MA 02111-1307, USA.  */
  19
  20 #include <ctype.h>
  21 #include <wctype.h>
  22
  23 #define USE_IN_EXTENDED_LOCALE_MODEL    1
  24 #include "cname-lookup.h"
  25
  26
  27 int
  28 __iswctype_l (wint_t wc, wctype_t desc, __locale_t locale)
  29 {
  30   const unsigned int *class32_b;
  31   size_t idx;
  32
  33   idx = cname_lookup (wc, locale);
  34   if (idx == ~((size_t) 0))
  35     return 0;
  36
  37   class32_b = (u_int32_t *)
  38     locale->__locales[LC_CTYPE]->values[_NL_ITEM_INDEX (_NL_CTYPE_CLASS32)].string;
  39
  40   return class32_b[idx] & desc;
  41 }