ctype/ctype.c

   1 /* Copyright (C) 1991, 1992, 1997, 1999 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, write to the Free
  16    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
  17    02111-1307 USA.  */
  18
  19 #define __NO_CTYPE
  20 #include <ctype.h>
  21
  22 /* Provide real-function versions of all the ctype macros.  */
  23
  24 #define func(name, type) \
  25   int name (int c) { return __isctype (c, type); }
  26
  27 func (isalnum, _ISalnum)
  28 func (isalpha, _ISalpha)
  29 func (iscntrl, _IScntrl)
  30 func (isdigit, _ISdigit)
  31 func (islower, _ISlower)
  32 func (isgraph, _ISgraph)
  33 func (isprint, _ISprint)
  34 func (ispunct, _ISpunct)
  35 func (isspace, _ISspace)
  36 func (isupper, _ISupper)
  37 func (isxdigit, _ISxdigit)
  38
  39 int
  40 tolower (int c)
  41 {
  42   return c >= -128 && c < 256 ? __ctype_tolower[c] : c;
  43 }
  44
  45 int
  46 toupper (int c)
  47 {
  48   return c >= -128 && c < 256 ? __ctype_toupper[c] : c;
  49 }