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        return;
        
    BOOST_ASSERT(
        static_cast<std::size_t>((std::numeric_limits<std::streamsize>::max)())
        > (count + sizeof(CharType) - 1)/sizeof(CharType)
    );
        
    if(is.fail())
        boost::serialization::throw_exception(
            archive_exception(archive_exception::input_stream_error)
        );
    // convert from base64 to binary
    typedef BOOST_DEDUCED_TYPENAME
        iterators::transform_width<
            iterators::binary_from_base64<
                iterators::remove_whitespace<
                    iterators::istream_iterator<CharType>
                >
                ,CharType
            >
            ,8
            ,6
            ,CharType
        > 
        binary;
        
    binary i = binary(
        BOOST_MAKE_PFTO_WRAPPER(
            iterators::istream_iterator<CharType>(is)
        )
    );

    char * caddr = static_cast<char *>(address);
    
    // take care that we don't increment anymore than necessary
    while(count-- > 0){
        *caddr++ = static_cast<char>(*i++);
    }

    // skip over any excess input
    for(;;){
        BOOST_DEDUCED_TYPENAME IStream::int_type r;
        r = is.get();
        if(is.eof())
            break;
        if(is_whitespace(static_cast<CharType>(r)))
            break;
    }
}
    
template<class IStream>
BOOST_ARCHIVE_OR_WARCHIVE_DECL(BOOST_PP_EMPTY())
basic_text_iprimitive<IStream>::basic_text_iprimitive(
    IStream  &is_,
    bool no_codecvt
) :
#ifndef BOOST_NO_STD_LOCALE
    is(is_),
    flags_saver(is_),
    precision_saver(is_),
    archive_locale(NULL),
    locale_saver(* is_.rdbuf())
{
    if(! no_codecvt){
        archive_locale.reset(
            add_facet(
                std::locale::classic(), 
                new codecvt_null<BOOST_DEDUCED_TYPENAME IStream::char_type>
            )
        );
        is.imbue(* archive_locale);
    }
    is >> std::noboolalpha;
}
#else
    is(is_),
    flags_saver(is_),
    precision_saver(is_)
{}
#endif

template<class IStream>
BOOST_ARCHIVE_OR_WARCHIVE_DECL(BOOST_PP_EMPTY())
basic_text_iprimitive<IStream>::~basic_text_iprimitive(){
    is.sync();
}

} // namespace archive
} // namespace boost