1 // <locale> Forward declarations -*- C++ -*-
2 
3 // Copyright (C) 1997-2020 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 
_GLIBCXX_VISIBILITY(default)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   class 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   class 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
215