libstdc++
ctype_base.h
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1 // Locale support -*- C++ -*-
2 
3 // Copyright (C) 1997, 1998, 1999, 2000, 2002, 2003, 2004, 2009
4 // Free Software Foundation, Inc.
5 //
6 // This file is part of the GNU ISO C++ Library. This library is free
7 // software; you can redistribute it and/or modify it under the
8 // terms of the GNU General Public License as published by the
9 // Free Software Foundation; either version 3, or (at your option)
10 // any later version.
11 
12 // This library is distributed in the hope that it will be useful,
13 // but WITHOUT ANY WARRANTY; without even the implied warranty of
14 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 // GNU General Public License for more details.
16 
17 // Under Section 7 of GPL version 3, you are granted additional
18 // permissions described in the GCC Runtime Library Exception, version
19 // 3.1, as published by the Free Software Foundation.
20 
21 // You should have received a copy of the GNU General Public License and
22 // a copy of the GCC Runtime Library Exception along with this program;
23 // see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
24 // <http://www.gnu.org/licenses/>.
25 
26 //
27 // ISO C++ 14882: 22.1 Locales
28 //
29 
30 /** @file ctype_base.h
31  * This is an internal header file, included by other library headers.
32  * You should not attempt to use it directly.
33  */
34 
35 // Information as gleaned from /usr/include/ctype.h
36 
37 _GLIBCXX_BEGIN_NAMESPACE(std)
38 
39  /// @brief Base class for ctype.
40  struct ctype_base
41  {
42  // Non-standard typedefs.
43  typedef const int* __to_type;
44 
45  // NB: Offsets into ctype<char>::_M_table force a particular size
46  // on the mask type. Because of this, we don't use an enum.
47  typedef unsigned short mask;
48  static const mask upper = _ISupper;
49  static const mask lower = _ISlower;
50  static const mask alpha = _ISalpha;
51  static const mask digit = _ISdigit;
52  static const mask xdigit = _ISxdigit;
53  static const mask space = _ISspace;
54  static const mask print = _ISprint;
55  static const mask graph = _ISalpha | _ISdigit | _ISpunct;
56  static const mask cntrl = _IScntrl;
57  static const mask punct = _ISpunct;
58  static const mask alnum = _ISalpha | _ISdigit;
59  };
60 
61 _GLIBCXX_END_NAMESPACE