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 //
26 // ISO C++ 14882: 22.1 Locales
27 //
28
29 // We don't use the C-locale masks defined in mingw/include/ctype.h
30 // because those masks do not conform to the requirements of 22.2.1.
31 // In particular, a separate 'print' bitmask does not exist (isprint(c)
32 // relies on a combination of flags) and the '_ALPHA' mask is also a
33 // combination of simple bitmasks. Thus, we define libstdc++-specific
34 // masks here, based on the generic masks, and the corresponding
35 // classic_table in ctype_noninline.h.
36
_GLIBCXX_VISIBILITY(default)37 namespace std _GLIBCXX_VISIBILITY(default)
38 {
39 _GLIBCXX_BEGIN_NAMESPACE_VERSION
40
41 /// @brief Base class for ctype.
42 struct ctype_base
43 {
44 // Non-standard typedefs.
45 typedef const int* __to_type;
46
47 // NB: Offsets into ctype<char>::_M_table force a particular size
48 // on the mask type. Because of this, we don't use an enum.
49 typedef unsigned short mask;
50 static const mask upper = 1 << 0;
51 static const mask lower = 1 << 1;
52 static const mask alpha = 1 << 2;
53 static const mask digit = 1 << 3;
54 static const mask xdigit = 1 << 4;
55 static const mask space = 1 << 5;
56 static const mask print = 1 << 6;
57 static const mask graph = (1 << 2) | (1 << 3) | (1 << 9); // alnum|punct
58 static const mask cntrl = 1 << 8;
59 static const mask punct = 1 << 9;
60 static const mask alnum = (1 << 2) | (1 << 3); // alpha|digit
61 #if __cplusplus >= 201103L
62 static const mask blank = 1 << 10;
63 #endif
64 };
65
66 _GLIBCXX_END_NAMESPACE_VERSION
67 } // namespace
68