type_encoding.hpp

[2005最新C++经典著作].C++ Programming.新手必看的学VC的奠基之著。

// Copyright (C) 2004 Arkadiy Vertleyb
// Use, modification and distribution is subject to the Boost Software
// License, Version 1.0. (http://www.boost.org/LICENSE_1_0.txt)

#ifndef BOOST_TYPE_ENCODING_HPP_INCLUDED
#define BOOST_TYPE_ENCODING_HPP_INCLUDED

#include <boost/spirit/typeof/encode_decode.hpp>
#include <boost/spirit/typeof/concatenate.hpp>

#define BOOST_TYPEOF_REGISTER_TYPE_IMPL(T, Id)                          \
                                                                        \
    template<class V> struct encode_type_impl<V, T >                    \
        : BOOST_TYPEOF_PUSH_BACK<V, mpl::size_t<Id> >                   \
    {};                                                                 \
    template<class Iter> struct decode_type_impl<mpl::size_t<Id>, Iter> \
    {                                                                   \
        typedef T type;                                                 \
        typedef Iter iter;                                              \
    };

#define BOOST_TYPEOF_REGISTER_TYPE(Type)                                \
    namespace boost{namespace type_of{namespace{                        \
        BOOST_TYPEOF_REGISTER_TYPE_IMPL(Type, BOOST_TYPEOF_UNIQUE_ID()) \
    }}}

#endif//BOOST_TYPE_ENCODING_HPP_INCLUDED