You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and dots ('.'), can be up to 35 characters long. Letters must be lowercase.
63 lines
1.9 KiB
63 lines
1.9 KiB
// (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) && (_MSC_VER >= 1020) |
|
# 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
|
|
|