libstdc++-v3/src/c++11/cow-locale_init.cc

   1 // Copyright (C) 2014-2024 Free Software Foundation, Inc.
   2 //
   3 // This file is part of the GNU ISO C++ Library.  This library is free
   4 // software; you can redistribute it and/or modify it under the
   5 // terms of the GNU General Public License as published by the
   6 // Free Software Foundation; either version 3, or (at your option)
   7 // any later version.
   8
   9 // This library is distributed in the hope that it will be useful,
  10 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12 // GNU General Public License for more details.
  13
  14 // Under Section 7 of GPL version 3, you are granted additional
  15 // permissions described in the GCC Runtime Library Exception, version
  16 // 3.1, as published by the Free Software Foundation.
  17
  18 // You should have received a copy of the GNU General Public License and
  19 // a copy of the GCC Runtime Library Exception along with this program;
  20 // see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
  21 // <http://www.gnu.org/licenses/>.
  22
  23 // Instantiate the facets using old std::string ABI.
  24 #define _GLIBCXX_USE_CXX11_ABI 0
  25 #include <locale>
  26
  27 #if ! _GLIBCXX_USE_DUAL_ABI
  28 # error This file should not be compiled for this configuration.
  29 #endif
  30
  31 namespace std _GLIBCXX_VISIBILITY(default)
  32 {
  33 _GLIBCXX_BEGIN_NAMESPACE_VERSION
  34
  35 namespace
  36 {
  37   typedef char fake_collate_c[sizeof(std::collate<char>)]
  38   __attribute__ ((aligned(__alignof__(std::collate<char>))));
  39   fake_collate_c collate_c;
  40
  41   typedef char fake_numpunct_c[sizeof(numpunct<char>)]
  42   __attribute__ ((aligned(__alignof__(numpunct<char>))));
  43   fake_numpunct_c numpunct_c;
  44
  45   typedef char fake_moneypunct_c[sizeof(moneypunct<char, true>)]
  46   __attribute__ ((aligned(__alignof__(moneypunct<char, true>))));
  47   fake_moneypunct_c moneypunct_ct;
  48   fake_moneypunct_c moneypunct_cf;
  49
  50   typedef char fake_money_get_c[sizeof(money_get<char>)]
  51   __attribute__ ((aligned(__alignof__(money_get<char>))));
  52   fake_money_get_c money_get_c;
  53
  54   typedef char fake_money_put_c[sizeof(money_put<char>)]
  55   __attribute__ ((aligned(__alignof__(money_put<char>))));
  56   fake_money_put_c money_put_c;
  57
  58   typedef char fake_time_get_c[sizeof(time_get<char>)]
  59   __attribute__ ((aligned(__alignof__(time_get<char>))));
  60   fake_time_get_c time_get_c;
  61
  62   typedef char fake_messages_c[sizeof(messages<char>)]
  63   __attribute__ ((aligned(__alignof__(messages<char>))));
  64   fake_messages_c messages_c;
  65
  66 #ifdef  _GLIBCXX_USE_WCHAR_T
  67   typedef char fake_wollate_w[sizeof(std::collate<wchar_t>)]
  68   __attribute__ ((aligned(__alignof__(std::collate<wchar_t>))));
  69   fake_wollate_w collate_w;
  70
  71   typedef char fake_numpunct_w[sizeof(numpunct<wchar_t>)]
  72   __attribute__ ((aligned(__alignof__(numpunct<wchar_t>))));
  73   fake_numpunct_w numpunct_w;
  74
  75   typedef char fake_moneypunct_w[sizeof(moneypunct<wchar_t, true>)]
  76   __attribute__ ((aligned(__alignof__(moneypunct<wchar_t, true>))));
  77   fake_moneypunct_w moneypunct_wt;
  78   fake_moneypunct_w moneypunct_wf;
  79
  80   typedef char fake_money_get_w[sizeof(money_get<wchar_t>)]
  81   __attribute__ ((aligned(__alignof__(money_get<wchar_t>))));
  82   fake_money_get_w money_get_w;
  83
  84   typedef char fake_money_put_w[sizeof(money_put<wchar_t>)]
  85   __attribute__ ((aligned(__alignof__(money_put<wchar_t>))));
  86   fake_money_put_w money_put_w;
  87
  88   typedef char fake_time_get_w[sizeof(time_get<wchar_t>)]
  89   __attribute__ ((aligned(__alignof__(time_get<wchar_t>))));
  90   fake_time_get_w time_get_w;
  91
  92   typedef char fake_messages_w[sizeof(messages<wchar_t>)]
  93   __attribute__ ((aligned(__alignof__(messages<wchar_t>))));
  94   fake_messages_w messages_w;
  95 #endif
  96 } // anonymous namespace
  97
  98   void
  99   locale::_Impl::_M_init_extra(facet** caches)
 100   {
 101     auto __npc = static_cast<__numpunct_cache<char>*>(caches[0]);
 102     auto __mpcf = static_cast<__moneypunct_cache<char, false>*>(caches[1]);
 103     auto __mpct = static_cast<__moneypunct_cache<char, true>*>(caches[2]);
 104
 105     _M_init_facet_unchecked(new (&numpunct_c) numpunct<char>(__npc, 1));
 106     _M_init_facet_unchecked(new (&collate_c) std::collate<char>(1));
 107     _M_init_facet_unchecked(new (&moneypunct_cf) moneypunct<char, false>(__mpcf, 1));
 108     _M_init_facet_unchecked(new (&moneypunct_ct) moneypunct<char, true>(__mpct, 1));
 109     _M_init_facet_unchecked(new (&money_get_c) money_get<char>(1));
 110     _M_init_facet_unchecked(new (&money_put_c) money_put<char>(1));
 111     _M_init_facet_unchecked(new (&time_get_c) time_get<char>(1));
 112     _M_init_facet_unchecked(new (&messages_c) std::messages<char>(1));
 113 #ifdef _GLIBCXX_USE_WCHAR_T
 114     auto __npw = static_cast<__numpunct_cache<wchar_t>*>(caches[3]);
 115     auto __mpwf = static_cast<__moneypunct_cache<wchar_t, false>*>(caches[4]);
 116     auto __mpwt = static_cast<__moneypunct_cache<wchar_t, true>*>(caches[5]);
 117
 118     _M_init_facet_unchecked(new (&numpunct_w) numpunct<wchar_t>(__npw, 1));
 119     _M_init_facet_unchecked(new (&collate_w) std::collate<wchar_t>(1));
 120     _M_init_facet_unchecked(new (&moneypunct_wf) moneypunct<wchar_t, false>(__mpwf, 1));
 121     _M_init_facet_unchecked(new (&moneypunct_wt) moneypunct<wchar_t, true>(__mpwt, 1));
 122     _M_init_facet_unchecked(new (&money_get_w) money_get<wchar_t>(1));
 123     _M_init_facet_unchecked(new (&money_put_w) money_put<wchar_t>(1));
 124     _M_init_facet_unchecked(new (&time_get_w) time_get<wchar_t>(1));
 125     _M_init_facet_unchecked(new (&messages_w) std::messages<wchar_t>(1));
 126 #endif
 127
 128     // The caches must be populated last, after creating all facets.
 129     _M_caches[numpunct<char>::id._M_id()] = __npc;
 130     _M_caches[moneypunct<char, false>::id._M_id()] = __mpcf;
 131     _M_caches[moneypunct<char, true>::id._M_id()] = __mpct;
 132 #ifdef  _GLIBCXX_USE_WCHAR_T
 133     _M_caches[numpunct<wchar_t>::id._M_id()] = __npw;
 134     _M_caches[moneypunct<wchar_t, false>::id._M_id()] = __mpwf;
 135     _M_caches[moneypunct<wchar_t, true>::id._M_id()] = __mpwt;
 136 #endif
 137   }
 138
 139   void
 140   locale::_Impl::_M_init_extra(void* cloc, [[maybe_unused]] void* clocm,
 141                                const char* __s,
 142                                [[maybe_unused]] const char* __smon)
 143   {
 144     auto& __cloc = *static_cast<__c_locale*>(cloc);
 145
 146     _M_init_facet_unchecked(new numpunct<char>(__cloc));
 147     _M_init_facet_unchecked(new std::collate<char>(__cloc));
 148     _M_init_facet_unchecked(new moneypunct<char, false>(__cloc, 0));
 149     _M_init_facet_unchecked(new moneypunct<char, true>(__cloc, 0));
 150     _M_init_facet_unchecked(new money_get<char>);
 151     _M_init_facet_unchecked(new money_put<char>);
 152     _M_init_facet_unchecked(new time_get<char>);
 153     _M_init_facet_unchecked(new std::messages<char>(__cloc, __s));
 154
 155 #ifdef  _GLIBCXX_USE_WCHAR_T
 156     auto& __clocm = *static_cast<__c_locale*>(clocm);
 157
 158     _M_init_facet_unchecked(new numpunct<wchar_t>(__cloc));
 159     _M_init_facet_unchecked(new std::collate<wchar_t>(__cloc));
 160     _M_init_facet_unchecked(new moneypunct<wchar_t, false>(__clocm, __smon));
 161     _M_init_facet_unchecked(new moneypunct<wchar_t, true>(__clocm, __smon));
 162     _M_init_facet_unchecked(new money_get<wchar_t>);
 163     _M_init_facet_unchecked(new money_put<wchar_t>);
 164     _M_init_facet_unchecked(new time_get<wchar_t>);
 165     _M_init_facet_unchecked(new std::messages<wchar_t>(__cloc, __s));
 166 #endif
 167   }
 168
 169 // TODO should be in another file
 170   string
 171   locale::name() const
 172   {
 173     string __ret;
 174     if (!_M_impl->_M_names[0])
 175       __ret = '*';
 176     else if (_M_impl->_M_check_same_name())
 177       __ret = _M_impl->_M_names[0];
 178     else
 179       {
 180         __ret.reserve(128);
 181         __ret += _S_categories[0];
 182         __ret += '=';
 183         __ret += _M_impl->_M_names[0];
 184         for (size_t __i = 1; __i < _S_categories_size; ++__i)
 185           {
 186             __ret += ';';
 187             __ret += _S_categories[__i];
 188             __ret += '=';
 189             __ret += _M_impl->_M_names[__i];
 190           }
 191       }
 192     return __ret;
 193   }
 194
 195 _GLIBCXX_END_NAMESPACE_VERSION
 196 }