boost/archive/codecvt_null.hpp
#ifndef BOOST_ARCHIVE_CODECVT_NULL_HPP
#define BOOST_ARCHIVE_CODECVT_NULL_HPP
// MS compatible compilers support #pragma once
#if defined(_MSC_VER) && (_MSC_VER >= 1020)
# pragma once
#endif
/////////1/////////2/////////3/////////4/////////5/////////6/////////7/////////8
// codecvt_null.hpp:
// (C) Copyright 2004 Robert Ramey - http://www.rrsd.com .
// Use, modification and distribution is subject to 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 for updates, documentation, and revision history.
#include <locale>
#include <cstddef>
#include <boost/config.hpp>
namespace std{
#if defined(__LIBCOMO__)
using ::mbstate_t;
#elif defined(__QNXNTO__)
using std::mbstate_t;
#elif defined(BOOST_DINKUMWARE_STDLIB) && BOOST_DINKUMWARE_STDLIB == 1
using ::mbstate_t;
#elif defined(__SGI_STL_PORT)
#elif defined(BOOST_NO_STDC_NAMESPACE)
using ::codecvt;
using ::mbstate_t;
#endif
} // namespace std
namespace boost {
namespace archive {
template<class Ch>
class codecvt_null;
template<>
class codecvt_null<char> : public std::codecvt<char, char, std::mbstate_t>
{
virtual bool do_always_noconv() const throw() {
return true;
}
public:
explicit codecvt_null(std::size_t no_locale_manage = 0) :
std::codecvt<char, char, std::mbstate_t>(no_locale_manage)
{}
};
template<>
class codecvt_null<wchar_t> : public std::codecvt<wchar_t, char, std::mbstate_t>
{
virtual std::codecvt_base::result
do_out(
std::mbstate_t & state,
const wchar_t * first1,
const wchar_t * last1,
const wchar_t * & next1,
char * first2,
char * last2,
char * & next2
) const;
virtual std::codecvt_base::result
do_in(
std::mbstate_t & state,
const char * first1,
const char * last1,
const char * & next1,
wchar_t * first2,
wchar_t * last2,
wchar_t * & next2
) const;
virtual int do_encoding( ) const throw( ){
return sizeof(wchar_t) / sizeof(char);
}
virtual int do_max_length( ) const throw( ){
return do_encoding();
}
};
} // namespace archive
} // namespace boost
#endif //BOOST_ARCHIVE_CODECVT_NULL_HPP