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// std::numpunct implementation details, GNU version -*- C++ -*-
// Copyright (C) 2001-2015 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
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