1  /* Map wide character using given mapping and locale.
       2     Copyright (C) 1996-2023 Free Software Foundation, Inc.
       3     This file is part of the GNU C Library.
       4  
       5     The GNU C Library is free software; you can redistribute it and/or
       6     modify it under the terms of the GNU Lesser General Public
       7     License as published by the Free Software Foundation; either
       8     version 2.1 of the 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     Lesser General Public License for more details.
      14  
      15     You should have received a copy of the GNU Lesser General Public
      16     License along with the GNU C Library; if not, see
      17     <https://www.gnu.org/licenses/>.  */
      18  
      19  #include <wctype.h>
      20  
      21  /* Define the lookup function.  */
      22  #define USE_IN_EXTENDED_LOCALE_MODEL	1
      23  #include "wchar-lookup.h"
      24  
      25  wint_t
      26  __towctrans_l (wint_t wc, wctrans_t desc, locale_t locale)
      27  {
      28    /* If the user passes in an invalid DESC valid (the one returned from
      29       `__wctrans_l' in case of an error) simply return the value.  */
      30    if (desc == (wctrans_t) 0)
      31      return wc;
      32  
      33    return wctrans_table_lookup ((const char *) desc, wc);
      34  }
      35  weak_alias (__towctrans_l, towctrans_l)