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 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