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// std::numpunct implementation details, GNU version -*- C++ -*-

// Copyright (C) 2001, 2002, 2003, 2004 Free Software Foundation, Inc.

//

// This file is part of the GNU ISO C++ Library.  This library is free

// software; you can redistribute it and/or modify it under the

// terms of the GNU General Public License as published by the

// Free Software Foundation; either version 2, or (at your option)

// any later version.

// This library is distributed in the hope that it will be useful,

// but WITHOUT ANY WARRANTY; without even the implied warranty of

// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

// GNU General Public License for more details.

// You should have received a copy of the GNU General Public License along

// with this library; see the file COPYING.  If not, write to the Free

// Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,

// USA.

// As a special exception, you may use this file as part of a free software

// library without restriction.  Specifically, if other files instantiate

// templates or use macros or inline functions from this file, or you compile

// this file and link it with other files to produce an executable, this

// file does not by itself cause the resulting executable to be covered by

// the GNU General Public License.  This exception does not however

// invalidate any other reasons why the executable file might be covered by

// the GNU General Public License.

//

// ISO C++ 14882: 22.2.3.1.2  numpunct virtual functions

//

// Written by Benjamin Kosnik <bkoz@redhat.com>

#include <locale>

#include <bits/c++locale_internal.h>

namespace std

{

  template<>

    void

    numpunct<char>::_M_initialize_numpunct(__c_locale __cloc)

    {

      if (!_M_data)

        _M_data = new __numpunct_cache<char>;

      if (!__cloc)

        {

          // "C" locale

          _M_data->_M_grouping = "";

          _M_data->_M_grouping_size = 0;

          _M_data->_M_use_grouping = false;

          _M_data->_M_decimal_point = '.';

          _M_data->_M_thousands_sep = ',';

          for (size_t __i = 0; __i < __num_base::_S_oend; ++__i)

            _M_data->_M_atoms_out[__i] = __num_base::_S_atoms_out[__i];

          for (size_t __j = 0; __j < __num_base::_S_iend; ++__j)

            _M_data->_M_atoms_in[__j] = __num_base::_S_atoms_in[__j];

        }

      else

        {

          // Named locale.

          _M_data->_M_decimal_point = *(__nl_langinfo_l(DECIMAL_POINT,

                                                        __cloc));

          _M_data->_M_thousands_sep = *(__nl_langinfo_l(THOUSANDS_SEP,

                                                        __cloc));

          // Check for NULL, which implies no grouping.

          if (_M_data->_M_thousands_sep == '\0')

            _M_data->_M_grouping = "";

          else

            _M_data->_M_grouping = __nl_langinfo_l(GROUPING, __cloc);

          _M_data->_M_grouping_size = strlen(_M_data->_M_grouping);

        }

      // NB: There is no way to extact this info from posix locales.

      // _M_truename = __nl_langinfo_l(YESSTR, __cloc);

      _M_data->_M_truename = "true";

      _M_data->_M_truename_size = 4;

      // _M_falsename = __nl_langinfo_l(NOSTR, __cloc);

      _M_data->_M_falsename = "false";

      _M_data->_M_falsename_size = 5;

    }

  template<>

    numpunct<char>::~numpunct()

    { delete _M_data; }

#ifdef _GLIBCXX_USE_WCHAR_T

  template<>

    void

    numpunct<wchar_t>::_M_initialize_numpunct(__c_locale __cloc)

    {

      if (!_M_data)

        _M_data = new __numpunct_cache<wchar_t>;

      if (!__cloc)

        {

          // "C" locale

          _M_data->_M_grouping = "";

          _M_data->_M_grouping_size = 0;

          _M_data->_M_use_grouping = false;

          _M_data->_M_decimal_point = L'.';

          _M_data->_M_thousands_sep = L',';

          // Use ctype::widen code without the facet...

          for (size_t __i = 0; __i < __num_base::_S_oend; ++__i)

            _M_data->_M_atoms_out[__i] =

              static_cast<wchar_t>(__num_base::_S_atoms_out[__i]);

          for (size_t __j = 0; __j < __num_base::_S_iend; ++__j)

            _M_data->_M_atoms_in[__j] =

              static_cast<wchar_t>(__num_base::_S_atoms_in[__j]);

        }

      else

        {

          // Named locale.

          // NB: In the GNU model wchar_t is always 32 bit wide.

          union { char *__s; wchar_t __w; } __u;

          __u.__s = __nl_langinfo_l(_NL_NUMERIC_DECIMAL_POINT_WC, __cloc);

          _M_data->_M_decimal_point = __u.__w;

          __u.__s = __nl_langinfo_l(_NL_NUMERIC_THOUSANDS_SEP_WC, __cloc);

          _M_data->_M_thousands_sep = __u.__w;

          if (_M_data->_M_thousands_sep == L'\0')

            _M_data->_M_grouping = "";

          else

            _M_data->_M_grouping = __nl_langinfo_l(GROUPING, __cloc);

          _M_data->_M_grouping_size = strlen(_M_data->_M_grouping);

        }

      // NB: There is no way to extact this info from posix locales.

      // _M_truename = __nl_langinfo_l(YESSTR, __cloc);

      _M_data->_M_truename = L"true";

      _M_data->_M_truename_size = 4;

      // _M_falsename = __nl_langinfo_l(NOSTR, __cloc);

      _M_data->_M_falsename = L"false";

      _M_data->_M_falsename_size = 5;

    }

  template<>

    numpunct<wchar_t>::~numpunct()

    { delete _M_data; }

 #endif

}