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

   1 // std::numpunct implementation details, GNU version -*- C++ -*-
   2
   3 // Copyright (C) 2001, 2002 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 (!__cloc)
  46         {
  47           // "C" locale
  48           _M_decimal_point = '.';
  49           _M_thousands_sep = ',';
  50           _M_grouping = "";
  51         }
  52       else
  53         {
  54           // Named locale.
  55           _M_decimal_point = *(__nl_langinfo_l(RADIXCHAR, __cloc));
  56           _M_thousands_sep = *(__nl_langinfo_l(THOUSEP, __cloc));
  57           // Check for NUL, which implies no grouping.
  58           if (_M_thousands_sep == '\0')
  59             _M_grouping = "";
  60           else
  61             _M_grouping = __nl_langinfo_l(GROUPING, __cloc);
  62         }
  63       // NB: There is no way to extact this info from posix locales.
  64       // _M_truename = __nl_langinfo_l(YESSTR, __cloc);
  65       _M_truename = "true";
  66       // _M_falsename = __nl_langinfo_l(NOSTR, __cloc);
  67       _M_falsename = "false";
  68     }
  69
  70   template<>
  71     numpunct<char>::~numpunct()
  72     { }
  73
  74 #ifdef _GLIBCPP_USE_WCHAR_T
  75   template<>
  76     void
  77     numpunct<wchar_t>::_M_initialize_numpunct(__c_locale __cloc)
  78     {
  79       if (!__cloc)
  80         {
  81           // "C" locale
  82           _M_decimal_point = L'.';
  83           _M_thousands_sep = L',';
  84           _M_grouping = "";
  85         }
  86       else
  87         {
  88           // Named locale.
  89           union __s_and_w { const char *__s; unsigned int __w; } __u;
  90           __u.__s = __nl_langinfo_l(_NL_NUMERIC_DECIMAL_POINT_WC, __cloc);
  91           _M_decimal_point = static_cast<wchar_t>(__u.__w);
  92
  93           __u.__s = __nl_langinfo_l(_NL_NUMERIC_THOUSANDS_SEP_WC, __cloc);
  94           _M_thousands_sep = static_cast<wchar_t>(__u.__w);
  95           if (_M_thousands_sep == L'\0')
  96             _M_grouping = "";
  97           else
  98             _M_grouping = __nl_langinfo_l(GROUPING, __cloc);
  99         }
 100       // NB: There is no way to extact this info from posix locales.
 101       // _M_truename = __nl_langinfo_l(YESSTR, __cloc);
 102       _M_truename = L"true";
 103       // _M_falsename = __nl_langinfo_l(NOSTR, __cloc);
 104       _M_falsename = L"false";
 105     }
 106
 107   template<>
 108     numpunct<wchar_t>::~numpunct()
 109     { }
 110  #endif
 111 }