wctype/iswctype.c

   1 /* Copyright (C) 1996 Free Software Foundation, Inc.
   2 This file is part of the GNU C Library.
   3 Contributed by Ulrich Drepper, <drepper@gnu.ai.mit.edu>.
   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
  17 not, 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 #include "cname-lookup.h"
  24
  25
  26 extern unsigned int *__ctype32_b;
  27
  28
  29 int
  30 iswctype (wint_t wc, wctype_t desc)
  31 {
  32   size_t idx;
  33
  34   idx = cname_lookup (wc);
  35   if (idx == ~((size_t) 0))
  36     return 0;
  37
  38   return __ctype32_b[idx] & desc;
  39 }