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

// Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009

// 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 3, 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.

// Under Section 7 of GPL version 3, you are granted additional

// permissions described in the GCC Runtime Library Exception, version

// 3.1, as published by the Free Software Foundation.

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

// a copy of the GCC Runtime Library Exception along with this program;

// see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see

// <http://www.gnu.org/licenses/>.

//

// 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 _GLIBCXX_VISIBILITY(default)

{

_GLIBCXX_BEGIN_NAMESPACE_VERSION

  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')

            {

              // Like in "C" locale.

              _M_data->_M_grouping = "";

              _M_data->_M_grouping_size = 0;

              _M_data->_M_use_grouping = false;

              _M_data->_M_thousands_sep = ',';

            }

          else

            {

              const char* __src = __nl_langinfo_l(GROUPING, __cloc);

              const size_t __len = strlen(__src);

              if (__len)

                {

                  __try

                    {

                      char* __dst = new char[__len + 1];

                      memcpy(__dst, __src, __len + 1);

                      _M_data->_M_grouping = __dst;

                    }

                  __catch(...)

                    {

                      delete _M_data;

                      _M_data = 0;

                      __throw_exception_again;

                    }

                }

              else

                {

                  _M_data->_M_grouping = "";

                  _M_data->_M_use_grouping = false;

                }

              _M_data->_M_grouping_size = __len;

            }

        }

      // 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()

    {

      if (_M_data->_M_grouping_size)

        delete [] _M_data->_M_grouping;

      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;

          // Check for NULL, which implies no grouping.

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

            {

              // Like in "C" locale.

              _M_data->_M_grouping = "";

              _M_data->_M_grouping_size = 0;

              _M_data->_M_use_grouping = false;

              _M_data->_M_thousands_sep = L',';

            }

          else

            {

              const char* __src = __nl_langinfo_l(GROUPING, __cloc);

              const size_t __len = strlen(__src);

              if (__len)

                {

                  __try

                    {

                      char* __dst = new char[__len + 1];

                      memcpy(__dst, __src, __len + 1);

                      _M_data->_M_grouping = __dst;

                    }

                  __catch(...)

                    {

                      delete _M_data;

                      _M_data = 0;

                      __throw_exception_again;

                    }

                }

              else

                {

                  _M_data->_M_grouping = "";

                  _M_data->_M_use_grouping = false;

                }

              _M_data->_M_grouping_size = __len;

            }

        }

      // 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()

    {

      if (_M_data->_M_grouping_size)

        delete [] _M_data->_M_grouping;

      delete _M_data;

    }

 #endif

_GLIBCXX_END_NAMESPACE_VERSION

} // namespace