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8 ? // Locale support -*- C++ -*-
// Copyright (C) 1997-2021 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
// .
/** @file bits/locale_facets.tcc
* This is an internal header file, included by other library headers.
* Do not attempt to use it directly. @headername{locale}
*/
#ifndef _LOCALE_FACETS_TCC
#define _LOCALE_FACETS_TCC 1
#pragma GCC system_header
namespace std _GLIBCXX_VISIBILITY(default)
{
_GLIBCXX_BEGIN_NAMESPACE_VERSION
// Routine to access a cache for the facet. If the cache didn't
// exist before, it gets constructed on the fly.
template
struct __use_cache
{
const _Facet*
operator() (const locale& __loc) const;
};
// Specializations.
template
struct __use_cache<__numpunct_cache<_CharT> >
{
const __numpunct_cache<_CharT>*
operator() (const locale& __loc) const
{
const size_t __i = numpunct<_CharT>::id._M_id();
const locale::facet** __caches = __loc._M_impl->_M_caches;
if (!__caches[__i])
{
__numpunct_cache<_CharT>* __tmp = 0;
__try
{
__tmp = new __numpunct_cache<_CharT>;
__tmp->_M_cache(__loc);
}
__catch(...)
{
delete __tmp;
__throw_exception_again;
}
__loc._M_impl->_M_install_cache(__tmp, __i);
}
return static_cast*>(__caches[__i]);
}
};
template
void
__numpunct_cache<_CharT>::_M_cache(const locale& __loc)
{
const numpunct<_CharT>& __np = use_facet >(__loc);
char* __grouping = 0;
_CharT* __truename = 0;
_CharT* __falsename = 0;
__try
{
const string& __g = __np.grouping();
_M_grouping_size = __g.size();
__grouping = new char[_M_grouping_size];
__g.copy(__grouping, _M_grouping_size);
_M_use_grouping = (_M_grouping_size
&& static_cast(__grouping[0]) > 0
&& (__grouping[0]
!= __gnu_cxx::__numeric_traits::__max));
const basic_string<_CharT>& __tn = __np.truename();
_M_truename_size = __tn.size();
__truename = new _CharT[_M_truename_size];
__tn.copy(__truename, _M_truename_size);
const basic_string<_CharT>& __fn = __np.falsename();
_M_falsename_size = __fn.size();
__falsename = new _CharT[_M_falsename_size];
__fn.copy(__falsename, _M_falsename_size);
_M_decimal_point = __np.decimal_point();
_M_thousands_sep = __np.thousands_sep();
const ctype<_CharT>& __ct = use_facet >(__loc);
__ct.widen(__num_base::_S_atoms_out,
__num_base::_S_atoms_out
+ __num_base::_S_oend, _M_atoms_out);
__ct.widen(__num_base::_S_atoms_in,
__num_base::_S_atoms_in
+ __num_base::_S_iend, _M_atoms_in);
_M_grouping = __grouping;
_M_truename = __truename;
_M_falsename = __falsename;
_M_allocated = true;
}
__catch(...)
{
delete [] __grouping;
delete [] __truename;
delete [] __falsena