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y // Locale support -*- C++ -*-
// Copyright (C) 2007-2013 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_classes.tcc
* This is an internal header file, included by other library headers.
* Do not attempt to use it directly. @headername{locale}
*/
//
// ISO C++ 14882: 22.1 Locales
//
#ifndef _LOCALE_CLASSES_TCC
#define _LOCALE_CLASSES_TCC 1
#pragma GCC system_header
namespace std _GLIBCXX_VISIBILITY(default)
{
_GLIBCXX_BEGIN_NAMESPACE_VERSION
template
locale::
locale(const locale& __other, _Facet* __f)
{
_M_impl = new _Impl(*__other._M_impl, 1);
__try
{ _M_impl->_M_install_facet(&_Facet::id, __f); }
__catch(...)
{
_M_impl->_M_remove_reference();
__throw_exception_again;
}
delete [] _M_impl->_M_names[0];
_M_impl->_M_names[0] = 0; // Unnamed.
}
template
locale
locale::
combine(const locale& __other) const
{
_Impl* __tmp = new _Impl(*_M_impl, 1);
__try
{
__tmp->_M_replace_facet(__other._M_impl, &_Facet::id);
}
__catch(...)
{
__tmp->_M_remove_reference();
__throw_exception_again;
}
return locale(__tmp);
}
template
bool
locale::
operator()(const basic_string<_CharT, _Traits, _Alloc>& __s1,
const basic_string<_CharT, _Traits, _Alloc>& __s2) const
{
typedef std::collate<_CharT> __collate_type;
const __collate_type& __collate = use_facet<__collate_type>(*this);
return (__collate.compare(__s1.data(), __s1.data() + __s1.length(),
__s2.data(), __s2.data() + __s2.length()) < 0);
}
/**
* @brief Test for the presence of a facet.
* @ingroup locales
*
* has_facet tests the locale argument for the presence of the facet type
* provided as the template parameter. Facets derived from the facet
* parameter will also return true.
*
* @tparam _Facet The facet type to test the presence of.
* @param __loc The locale to test.
* @return true if @p __loc contains a facet of type _Facet, else false.
*/
template
bool
has_facet(const locale& __loc) throw()
{
const size_t __i = _Facet::id._M_id();
const locale::facet** __facets = __loc._M_impl->_M_facets;
return (__i < __loc._M_impl->_M_facets_size
#ifdef __GXX_RTTI
&& dynamic_cast(__facets[__i]));
#else
&& static_cast(__facets[__i]));
#endif
}
/**
* @brief Return a facet.
* @ingroup locales
*
* use_facet looks for and returns a reference to a facet of type Facet