1  /* Copyright (C) 1991-2023 Free Software Foundation, Inc.
       2     This file is part of the GNU C Library.
       3  
       4     The GNU C Library is free software; you can redistribute it and/or
       5     modify it under the terms of the GNU Lesser General Public
       6     License as published by the Free Software Foundation; either
       7     version 2.1 of the License, or (at your option) any later version.
       8  
       9     The GNU C Library is distributed in the hope that it will be useful,
      10     but WITHOUT ANY WARRANTY; without even the implied warranty of
      11     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
      12     Lesser General Public License for more details.
      13  
      14     You should have received a copy of the GNU Lesser General Public
      15     License along with the GNU C Library; if not, see
      16     <https://www.gnu.org/licenses/>.  */
      17  
      18  #define	__NO_CTYPE
      19  #include <ctype.h>
      20  
      21  #define __ctype_tolower \
      22    ((int32_t *) _NL_CURRENT (LC_CTYPE, _NL_CTYPE_TOLOWER) + 128)
      23  #define __ctype_toupper \
      24    ((int32_t *) _NL_CURRENT (LC_CTYPE, _NL_CTYPE_TOUPPER) + 128)
      25  
      26  /* Real function versions of the non-ANSI ctype functions.  */
      27  
      28  int
      29  _tolower (int c)
      30  {
      31    return __ctype_tolower[c];
      32  }
      33  int
      34  _toupper (int c)
      35  {
      36    return __ctype_toupper[c];
      37  }
      38  
      39  int
      40  toascii (int c)
      41  {
      42    return __toascii (c);
      43  }
      44  weak_alias (toascii, __toascii_l)
      45  
      46  int
      47  isascii (int c)
      48  {
      49    return __isascii (c);
      50  }
      51  weak_alias (isascii, __isascii_l)