// 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)// member functionstemplate<class V, class T, class R BOOST_PP_ENUM_TRAILING_PARAMS(n, class P)> struct encode_type_impl<V, R(T::*)(BOOST_PP_ENUM_PARAMS(n, P)) BOOST_TYPEOF_qualifier>{    typedef R BOOST_PP_CAT(P, n);    typedef T BOOST_PP_CAT(P, BOOST_PP_INC(n));    typedef BOOST_TYPEOF_ENCODE_PARAMS(BOOST_PP_ADD(n, 2), BOOST_TYPEOF_id + n) type;};template<class Iter>struct decode_type_impl<mpl::size_t<BOOST_TYPEOF_id + n>, Iter>{    typedef Iter iter0;    BOOST_TYPEOF_DECODE_PARAMS(BOOST_PP_ADD(n, 2))    template<class T> struct workaround{        typedef BOOST_PP_CAT(p, n)(T::*type)(BOOST_PP_ENUM_PARAMS(n, p)) BOOST_TYPEOF_qualifier;    };    typedef typename workaround<BOOST_PP_CAT(p, BOOST_PP_INC(n))>::type type;    typedef BOOST_PP_CAT(iter, BOOST_PP_ADD(n, 2)) iter;};// undef parameters#undef BOOST_TYPEOF_id#undef BOOST_TYPEOF_qualifier