libstdc++
cctype
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1 // -*- C++ -*- forwarding header.
2 
3 // Copyright (C) 1997-2025 Free Software Foundation, Inc.
4 //
5 // This file is part of the GNU ISO C++ Library. This library is free
6 // software; you can redistribute it and/or modify it under the
7 // terms of the GNU General Public License as published by the
8 // Free Software Foundation; either version 3, or (at your option)
9 // any later version.
10 
11 // This library is distributed in the hope that it will be useful,
12 // but WITHOUT ANY WARRANTY; without even the implied warranty of
13 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 // GNU General Public License for more details.
15 
16 // Under Section 7 of GPL version 3, you are granted additional
17 // permissions described in the GCC Runtime Library Exception, version
18 // 3.1, as published by the Free Software Foundation.
19 
20 // You should have received a copy of the GNU General Public License and
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22 // see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
23 // <http://www.gnu.org/licenses/>.
24 
25 /** @file include/cctype
26  * This is a Standard C++ Library file. You should @c \#include this file
27  * in your programs, rather than any of the @a *.h implementation files.
28  *
29  * This is the C++ version of the Standard C Library header @c ctype.h,
30  * and its contents are (mostly) the same as that header, but are all
31  * contained in the namespace @c std (except for names which are defined
32  * as macros in C).
33  */
34 
35 //
36 // ISO C++ 14882: <ccytpe>
37 //
38 
39 #ifndef _GLIBCXX_CCTYPE
40 #define _GLIBCXX_CCTYPE 1
41 
42 #ifdef _GLIBCXX_SYSHDR
43 #pragma GCC system_header
44 #endif
45 
46 #include <bits/c++config.h>
47 #include <ctype.h>
48 
49 // Get rid of those macros defined in <ctype.h> in lieu of real functions.
50 #undef isalnum
51 #undef isalpha
52 #undef iscntrl
53 #undef isdigit
54 #undef isgraph
55 #undef islower
56 #undef isprint
57 #undef ispunct
58 #undef isspace
59 #undef isupper
60 #undef isxdigit
61 #undef tolower
62 #undef toupper
63 
64 namespace std
65 {
66  using ::isalnum;
67  using ::isalpha;
68  using ::iscntrl;
69  using ::isdigit;
70  using ::isgraph;
71  using ::islower;
72  using ::isprint;
73  using ::ispunct;
74  using ::isspace;
75  using ::isupper;
76  using ::isxdigit;
77  using ::tolower;
78  using ::toupper;
79 } // namespace std
80 
81 #if __cplusplus >= 201103L
82 
83 #ifdef _GLIBCXX_USE_C99_CTYPE
84 
85 #undef isblank
86 
87 namespace std
88 {
89  using ::isblank;
90 } // namespace std
91 
92 #endif // _GLIBCXX_USE_C99_CTYPE
93 
94 #endif // C++11
95 
96 #endif