libstdc++
ctype_base.h
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1 // Locale support -*- C++ -*-
2 
3 // Copyright (C) 1997-2021 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
21 // a copy of the GCC Runtime Library Exception along with this program;
22 // see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
23 // <http://www.gnu.org/licenses/>.
24 
25 /** @file bits/ctype_base.h
26  * This is an internal header file, included by other library headers.
27  * Do not attempt to use it directly. @headername{locale}
28  */
29 
30 //
31 // ISO C++ 14882: 22.1 Locales
32 //
33 
34 // Information as gleaned from /usr/include/ctype.h
35 
36 namespace std _GLIBCXX_VISIBILITY(default)
37 {
38 _GLIBCXX_BEGIN_NAMESPACE_VERSION
39 
40  /// @brief Base class for ctype.
41  struct ctype_base
42  {
43  // Non-standard typedefs.
44  typedef const int* __to_type;
45 
46  // NB: Offsets into ctype<char>::_M_table force a particular size
47  // on the mask type. Because of this, we don't use an enum.
48  typedef unsigned short mask;
49  static const mask upper = _ISupper;
50  static const mask lower = _ISlower;
51  static const mask alpha = _ISalpha;
52  static const mask digit = _ISdigit;
53  static const mask xdigit = _ISxdigit;
54  static const mask space = _ISspace;
55  static const mask print = _ISprint;
56  static const mask graph = _ISalpha | _ISdigit | _ISpunct;
57  static const mask cntrl = _IScntrl;
58  static const mask punct = _ISpunct;
59  static const mask alnum = _ISalpha | _ISdigit;
60 #if __cplusplus >= 201103L
61  static const mask blank = _ISblank;
62 #endif
63  };
64 
65 _GLIBCXX_END_NAMESPACE_VERSION
66 } // namespace
ISO C++ entities toplevel namespace is std.
Base class for ctype.
Definition: ctype_base.h:42