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/* Provide real-function versions of all the ctype macros. */
22
23#define func(name, type) \
24 int name (int c) { return __isctype (c, type); }
25
26func (isalnum, _ISalnum)
27func (isalpha, _ISalpha)
28func (iscntrl, _IScntrl)
29func (isdigit, _ISdigit)
30func (islower, _ISlower)
31func (isgraph, _ISgraph)
32func (isprint, _ISprint)
33func (ispunct, _ISpunct)
34func (isspace, _ISspace)
35func (isupper, _ISupper)
36func (isxdigit, _ISxdigit)
37
38#define __ctype_tolower \
39 ((int32_t *) _NL_CURRENT (LC_CTYPE, _NL_CTYPE_TOLOWER) + 128)
40#define __ctype_toupper \
41 ((int32_t *) _NL_CURRENT (LC_CTYPE, _NL_CTYPE_TOUPPER) + 128)
42
43int
44tolower (int c)
45{
46 return c >= -128 && c < 256 ? __ctype_tolower[c] : c;
47}
48libc_hidden_def (tolower)
49
50int
51toupper (int c)
52{
53 return c >= -128 && c < 256 ? __ctype_toupper[c] : c;
54}
55libc_hidden_def (toupper)
56