64 lines
2.0 KiB
C++
64 lines
2.0 KiB
C++
|
// (C) Copyright 2008 CodeRage, LLC (turkanis at coderage dot com)
|
||
|
|
// (C) Copyright 2003-2007 Jonathan Turkanis
|
||
|
|
// Distributed under the Boost Software License, Version 1.0. (See accompanying
|
||
|
|
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt.)
|
||
|
|
|
||
|
|
// See http://www.boost.org/libs/iostreams for documentation.
|
||
|
|
|
||
|
|
// Contains machinery for performing code conversion.
|
||
|
|
|
||
|
|
#ifndef BOOST_IOSTREAMS_DETAIL_CODECVT_HOLDER_HPP_INCLUDED
|
||
|
|
#define BOOST_IOSTREAMS_DETAIL_CODECVT_HOLDER_HPP_INCLUDED
|
||
|
|
|
||
|
|
#if defined(_MSC_VER)
|
||
|
|
# pragma once
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#include <cwchar> // mbstate_t.
|
||
|
|
#include <locale> // codecvt, locale.
|
||
|
|
#include <boost/config.hpp> // HAS_MACRO_USE_FACET.
|
||
|
|
#include <boost/iostreams/detail/config/codecvt.hpp>
|
||
|
|
|
||
|
|
namespace boost { namespace iostreams { namespace detail {
|
||
|
|
|
||
|
|
struct default_codecvt {
|
||
|
|
typedef wchar_t intern_type, from_type;
|
||
|
|
typedef char extern_type, to_type;
|
||
|
|
typedef std::mbstate_t state_type;
|
||
|
|
};
|
||
|
|
|
||
|
|
template<typename Codecvt>
|
||
|
|
struct codecvt_holder {
|
||
|
|
typedef Codecvt codecvt_type;
|
||
|
|
const codecvt_type& get() const { return codecvt_; }
|
||
|
|
void imbue(const std::locale&) { }
|
||
|
|
Codecvt codecvt_;
|
||
|
|
};
|
||
|
|
|
||
|
|
template<>
|
||
|
|
struct codecvt_holder<default_codecvt> {
|
||
|
|
typedef std::codecvt<wchar_t, char, std::mbstate_t> codecvt_type;
|
||
|
|
codecvt_holder() { reset_codecvt(); }
|
||
|
|
const codecvt_type& get() const { return *codecvt_; }
|
||
|
|
void imbue(const std::locale& loc)
|
||
|
|
{
|
||
|
|
loc_ = loc;
|
||
|
|
reset_codecvt();
|
||
|
|
}
|
||
|
|
void reset_codecvt()
|
||
|
|
{
|
||
|
|
using namespace std;
|
||
|
|
#ifndef BOOST_HAS_MACRO_USE_FACET
|
||
|
|
codecvt_ = & use_facet< codecvt_type >(loc_);
|
||
|
|
#else
|
||
|
|
codecvt_ = & _USE(loc_, codecvt_type);
|
||
|
|
#endif
|
||
|
|
}
|
||
|
|
std::locale loc_; // Prevent codecvt_ from being freed.
|
||
|
|
const codecvt_type* codecvt_;
|
||
|
|
};
|
||
|
|
|
||
|
|
} } } // End namespaces detail, iostreams, boost.
|
||
|
|
|
||
|
|
#endif // #ifndef BOOST_IOSTREAMS_DETAIL_CODECVT_HOLDER_HPP_INCLUDED
|