toolchain/gcc/libstdc++-v3/config/locale/gnu/numeric_members.cc

   1 // std::numpunct implementation details, GNU version -*- C++ -*-
   2
   3 // Copyright (C) 2001, 2002, 2003, 2004 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 2, 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 // You should have received a copy of the GNU General Public License along
  17 // with this library; see the file COPYING.  If not, write to the Free
  18 // Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307,
  19 // USA.
  20
  21 // As a special exception, you may use this file as part of a free software
  22 // library without restriction.  Specifically, if other files instantiate
  23 // templates or use macros or inline functions from this file, or you compile
  24 // this file and link it with other files to produce an executable, this
  25 // file does not by itself cause the resulting executable to be covered by
  26 // the GNU General Public License.  This exception does not however
  27 // invalidate any other reasons why the executable file might be covered by
  28 // the GNU General Public License.
  29
  30 //
  31 // ISO C++ 14882: 22.2.3.1.2  numpunct virtual functions
  32 //
  33
  34 // Written by Benjamin Kosnik <bkoz@redhat.com>
  35
  36 #include <locale>
  37 #include <bits/c++locale_internal.h>
  38
  39 namespace std
  40 {
  41   template<>
  42     void
  43     numpunct<char>::_M_initialize_numpunct(__c_locale __cloc)
  44     {
  45       if (!_M_data)
  46         _M_data = new __numpunct_cache<char>;
  47
  48       if (!__cloc)
  49         {
  50           // "C" locale
  51           _M_data->_M_grouping = "";
  52           _M_data->_M_grouping_size = 0;
  53           _M_data->_M_use_grouping = false;
  54
  55           _M_data->_M_decimal_point = '.';
  56           _M_data->_M_thousands_sep = ',';
  57
  58           for (size_t __i = 0; __i < __num_base::_S_oend; ++__i)
  59             _M_data->_M_atoms_out[__i] = __num_base::_S_atoms_out[__i];
  60
  61           for (size_t __j = 0; __j < __num_base::_S_iend; ++__j)
  62             _M_data->_M_atoms_in[__j] = __num_base::_S_atoms_in[__j];
  63         }
  64       else
  65         {
  66           // Named locale.
  67           _M_data->_M_decimal_point = *(__nl_langinfo_l(DECIMAL_POINT,
  68                                                         __cloc));
  69           _M_data->_M_thousands_sep = *(__nl_langinfo_l(THOUSANDS_SEP,
  70                                                         __cloc));
  71
  72           // Check for NULL, which implies no grouping.
  73           if (_M_data->_M_thousands_sep == '\0')
  74             _M_data->_M_grouping = "";
  75           else
  76             _M_data->_M_grouping = __nl_langinfo_l(GROUPING, __cloc);
  77           _M_data->_M_grouping_size = strlen(_M_data->_M_grouping);
  78         }
  79
  80       // NB: There is no way to extact this info from posix locales.
  81       // _M_truename = __nl_langinfo_l(YESSTR, __cloc);
  82       _M_data->_M_truename = "true";
  83       _M_data->_M_truename_size = strlen(_M_data->_M_truename);
  84       // _M_falsename = __nl_langinfo_l(NOSTR, __cloc);
  85       _M_data->_M_falsename = "false";
  86       _M_data->_M_falsename_size = strlen(_M_data->_M_falsename);
  87     }
  88
  89   template<>
  90     numpunct<char>::~numpunct()
  91     { delete _M_data; }
  92
  93 #ifdef _GLIBCXX_USE_WCHAR_T
  94   template<>
  95     void
  96     numpunct<wchar_t>::_M_initialize_numpunct(__c_locale __cloc)
  97     {
  98       if (!_M_data)
  99         _M_data = new __numpunct_cache<wchar_t>;
 100
 101       if (!__cloc)
 102         {
 103           // "C" locale
 104           _M_data->_M_grouping = "";
 105           _M_data->_M_grouping_size = 0;
 106           _M_data->_M_use_grouping = false;
 107
 108           _M_data->_M_decimal_point = L'.';
 109           _M_data->_M_thousands_sep = L',';
 110
 111 #if __GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ > 2)
 112           __c_locale __old = __uselocale(_S_get_c_locale());
 113 #endif
 114           // Use ctype::widen code without the facet...
 115           unsigned char uc;
 116           for (size_t __i = 0; __i < __num_base::_S_oend; ++__i)
 117             {
 118               uc = static_cast<unsigned char>(__num_base::_S_atoms_out[__i]);
 119               _M_data->_M_atoms_out[__i] = btowc(uc);
 120             }
 121
 122           for (size_t __j = 0; __j < __num_base::_S_iend; ++__j)
 123             {
 124               uc = static_cast<unsigned char>(__num_base::_S_atoms_in[__j]);
 125               _M_data->_M_atoms_in[__j] = btowc(uc);
 126             }
 127 #if __GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ > 2)
 128           __uselocale(__old);
 129 #endif
 130         }
 131       else
 132         {
 133           // Named locale.
 134           union __s_and_w { const char *__s; unsigned int __w; } __u;
 135           __u.__s = __nl_langinfo_l(_NL_NUMERIC_DECIMAL_POINT_WC, __cloc);
 136           _M_data->_M_decimal_point = static_cast<wchar_t>(__u.__w);
 137
 138           __u.__s = __nl_langinfo_l(_NL_NUMERIC_THOUSANDS_SEP_WC, __cloc);
 139           _M_data->_M_thousands_sep = static_cast<wchar_t>(__u.__w);
 140
 141           if (_M_data->_M_thousands_sep == L'\0')
 142             _M_data->_M_grouping = "";
 143           else
 144             _M_data->_M_grouping = __nl_langinfo_l(GROUPING, __cloc);
 145           _M_data->_M_grouping_size = strlen(_M_data->_M_grouping);
 146         }
 147
 148       // NB: There is no way to extact this info from posix locales.
 149       // _M_truename = __nl_langinfo_l(YESSTR, __cloc);
 150       _M_data->_M_truename = L"true";
 151       _M_data->_M_truename_size = wcslen(_M_data->_M_truename);
 152       // _M_falsename = __nl_langinfo_l(NOSTR, __cloc);
 153       _M_data->_M_falsename = L"false";
 154       _M_data->_M_falsename_size = wcslen(_M_data->_M_falsename);
 155     }
 156
 157   template<>
 158     numpunct<wchar_t>::~numpunct()
 159     { delete _M_data; }
 160  #endif
 161 }