messages_members.h
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// std::messages implementation details, GNU version -*- C++ -*-
// Copyright (C) 2001-2021 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
// <http://www.gnu.org/licenses/>.
/** @file bits/messages_members.h
* This is an internal header file, included by other library headers.
* Do not attempt to use it directly. @headername{locale}
*/
//
// ISO C++ 14882: 22.2.7.1.2 messages functions
//
// Written by Benjamin Kosnik <bkoz@redhat.com>
#include <libintl.h>
namespace std _GLIBCXX_VISIBILITY(default)
{
_GLIBCXX_BEGIN_NAMESPACE_VERSION
// Non-virtual member functions.
template<typename _CharT>
messages<_CharT>::messages(size_t __refs)
: facet(__refs), _M_c_locale_messages(_S_get_c_locale()),
_M_name_messages(_S_get_c_name())
{ }
template<typename _CharT>
messages<_CharT>::messages(__c_locale __cloc, const char* __s,
size_t __refs)
: facet(__refs), _M_c_locale_messages(0), _M_name_messages(0)
{
if (__builtin_strcmp(__s, _S_get_c_name()) != 0)
{
const size_t __len = __builtin_strlen(__s) + 1;
char* __tmp = new char[__len];
__builtin_memcpy(__tmp, __s, __len);
_M_name_messages = __tmp;
}
else
_M_name_messages = _S_get_c_name();
// Last to avoid leaking memory if new throws.
_M_c_locale_messages = _S_clone_c_locale(__cloc);
}
template<typename _CharT>
typename messages<_CharT>::catalog
messages<_CharT>::open(const basic_string<char>& __s, const locale& __loc,
const char* __dir) const
{
bindtextdomain(__s.c_str(), __dir);
return this->do_open(__s, __loc);
}
// Virtual member functions.
template<typename _CharT>
messages<_CharT>::~messages()
{
if (_M_name_messages != _S_get_c_name())
delete [] _M_name_messages;
_S_destroy_c_locale(_M_c_locale_messages);
}
template<typename _CharT>
typename messages<_CharT>::catalog
messages<_CharT>::do_open(const basic_string<char>& __s,
const locale&) const
{
// No error checking is done, assume the catalog exists and can
// be used.
textdomain(__s.c_str());
return 0;
}
template<typename _CharT>
void
messages<_CharT>::do_close(catalog) const
{ }
// messages_byname
template<typename _CharT>
messages_byname<_CharT>::messages_byname(const char* __s, size_t __refs)
: messages<_CharT>(__refs)
{
if (this->_M_name_messages != locale::facet::_S_get_c_name())
{
delete [] this->_M_name_messages;
if (__builtin_strcmp(__s, locale::facet::_S_get_c_name()) != 0)
{
const size_t __len = __builtin_strlen(__s) + 1;
char* __tmp = new char[__len];
__builtin_memcpy(__tmp, __s, __len);
this->_M_name_messages = __tmp;
}
else
this->_M_name_messages = locale::facet::_S_get_c_name();
}
if (__builtin_strcmp(__s, "C") != 0
&& __builtin_strcmp(__s, "POSIX") != 0)
{
this->_S_destroy_c_locale(this->_M_c_locale_messages);
this->_S_create_c_locale(this->_M_c_locale_messages, __s);
}
}
//Specializations.
template<>
typename messages<char>::catalog
messages<char>::do_open(const basic_string<char>&,
const locale&) const;
template<>
void
messages<char>::do_close(catalog) const;
#ifdef _GLIBCXX_USE_WCHAR_T
template<>
typename messages<wchar_t>::catalog
messages<wchar_t>::do_open(const basic_string<char>&,
const locale&) const;
template<>
void
messages<wchar_t>::do_close(catalog) const;
#endif
_GLIBCXX_END_NAMESPACE_VERSION
} // namespace
std
ISO C++ entities toplevel namespace is std.
std::basic_string< char >
std::basic_string::c_str
const _CharT * c_str() const noexcept
Return const pointer to null-terminated contents.
Definition: basic_string.h:5256
std::locale
Container class for localization functionality.
Definition: locale_classes.h:63
std::messages
Primary class template messages.
Definition: locale_facets_nonio.h:1816
std::messages::messages
messages(size_t __refs=0)
Constructor performs initialization.
Definition: messages_members.h:44
std::messages::~messages
virtual ~messages()
Destructor.
Definition: messages_members.h:79