1 // <locale> Forward declarations -*- C++ -*-
2
3 // Copyright (C) 1997-2023 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/localefwd.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 #ifndef _LOCALE_FWD_H
35 #define _LOCALE_FWD_H 1
36
37 #pragma GCC system_header
38
39 #include <bits/c++config.h>
40 #include <bits/c++locale.h> // Defines __c_locale, config-specific include
41 #include <iosfwd> // For ostreambuf_iterator, istreambuf_iterator
42 #include <cctype>
43
44 namespace std _GLIBCXX_VISIBILITY(default)
45 {
46 _GLIBCXX_BEGIN_NAMESPACE_VERSION
47
48 /**
49 * @defgroup locales Locales
50 *
51 * Classes and functions for internationalization and localization.
52 */
53
54 // 22.1.1 Locale
55 class locale;
56
57 template<typename _Facet>
58 bool
59 has_facet(const locale&) throw();
60
61 template<typename _Facet>
62 const _Facet&
63 use_facet(const locale&);
64
65 // 22.1.3 Convenience interfaces
66 template<typename _CharT>
67 bool
68 isspace(_CharT, const locale&);
69
70 template<typename _CharT>
71 bool
72 isprint(_CharT, const locale&);
73
74 template<typename _CharT>
75 bool
76 iscntrl(_CharT, const locale&);
77
78 template<typename _CharT>
79 bool
80 isupper(_CharT, const locale&);
81
82 template<typename _CharT>
83 bool
84 islower(_CharT, const locale&);
85
86 template<typename _CharT>
87 bool
88 isalpha(_CharT, const locale&);
89
90 template<typename _CharT>
91 bool
92 isdigit(_CharT, const locale&);
93
94 template<typename _CharT>
95 bool
96 ispunct(_CharT, const locale&);
97
98 template<typename _CharT>
99 bool
100 isxdigit(_CharT, const locale&);
101
102 template<typename _CharT>
103 bool
104 isalnum(_CharT, const locale&);
105
106 template<typename _CharT>
107 bool
108 isgraph(_CharT, const locale&);
109
110 #if __cplusplus >= 201103L
111 template<typename _CharT>
112 bool
113 isblank(_CharT, const locale&);
114 #endif
115
116 template<typename _CharT>
117 _CharT
118 toupper(_CharT, const locale&);
119
120 template<typename _CharT>
121 _CharT
122 tolower(_CharT, const locale&);
123
124 // 22.2.1 and 22.2.1.3 ctype
125 struct ctype_base;
126 template<typename _CharT>
127 class ctype;
128 template<> class ctype<char>;
129 #ifdef _GLIBCXX_USE_WCHAR_T
130 template<> class ctype<wchar_t>;
131 #endif
132 template<typename _CharT>
133 class ctype_byname;
134 // NB: Specialized for char and wchar_t in locale_facets.h.
135
136 class codecvt_base;
137 template<typename _InternT, typename _ExternT, typename _StateT>
138 class codecvt;
139 template<> class codecvt<char, char, mbstate_t>;
140 #ifdef _GLIBCXX_USE_WCHAR_T
141 template<> class codecvt<wchar_t, char, mbstate_t>;
142 #endif
143 #if __cplusplus >= 201103L
144 template<> class codecvt<char16_t, char, mbstate_t>;
145 template<> class codecvt<char32_t, char, mbstate_t>;
146 #ifdef _GLIBCXX_USE_CHAR8_T
147 template<> class codecvt<char16_t, char8_t, mbstate_t>;
148 template<> class codecvt<char32_t, char8_t, mbstate_t>;
149 #endif
150 #endif
151 template<typename _InternT, typename _ExternT, typename _StateT>
152 class codecvt_byname;
153
154 // 22.2.2 and 22.2.3 numeric
155 _GLIBCXX_BEGIN_NAMESPACE_LDBL
156 template<typename _CharT, typename _InIter = istreambuf_iterator<_CharT> >
157 class num_get;
158 template<typename _CharT, typename _OutIter = ostreambuf_iterator<_CharT> >
159 class num_put;
160 _GLIBCXX_END_NAMESPACE_LDBL
161 _GLIBCXX_BEGIN_NAMESPACE_CXX11
162 template<typename _CharT> class numpunct;
163 template<typename _CharT> class numpunct_byname;
164 _GLIBCXX_END_NAMESPACE_CXX11
165
166 _GLIBCXX_BEGIN_NAMESPACE_CXX11
167 // 22.2.4 collation
168 template<typename _CharT>
169 class collate;
170 template<typename _CharT>
171 class collate_byname;
172 _GLIBCXX_END_NAMESPACE_CXX11
173
174 // 22.2.5 date and time
175 class time_base;
176 _GLIBCXX_BEGIN_NAMESPACE_CXX11
177 template<typename _CharT, typename _InIter = istreambuf_iterator<_CharT> >
178 class time_get;
179 template<typename _CharT, typename _InIter = istreambuf_iterator<_CharT> >
180 class time_get_byname;
181 _GLIBCXX_END_NAMESPACE_CXX11
182 template<typename _CharT, typename _OutIter = ostreambuf_iterator<_CharT> >
183 class time_put;
184 template<typename _CharT, typename _OutIter = ostreambuf_iterator<_CharT> >
185 class time_put_byname;
186
187 // 22.2.6 money
188 class money_base;
189 _GLIBCXX_BEGIN_NAMESPACE_LDBL_OR_CXX11
190 template<typename _CharT, typename _InIter = istreambuf_iterator<_CharT> >
191 class money_get;
192 template<typename _CharT, typename _OutIter = ostreambuf_iterator<_CharT> >
193 class money_put;
194 _GLIBCXX_END_NAMESPACE_LDBL_OR_CXX11
195 _GLIBCXX_BEGIN_NAMESPACE_CXX11
196 template<typename _CharT, bool _Intl = false>
197 class moneypunct;
198 template<typename _CharT, bool _Intl = false>
199 class moneypunct_byname;
200 _GLIBCXX_END_NAMESPACE_CXX11
201
202 // 22.2.7 message retrieval
203 struct messages_base;
204 _GLIBCXX_BEGIN_NAMESPACE_CXX11
205 template<typename _CharT>
206 class messages;
207 template<typename _CharT>
208 class messages_byname;
209 _GLIBCXX_END_NAMESPACE_CXX11
210
211 _GLIBCXX_END_NAMESPACE_VERSION
212 } // namespace std
213
214 #endif