1 #ifndef BOOST_METAPARSE_V1_IMPL_ONE_OF_FWD_OP_HPP
2 #define BOOST_METAPARSE_V1_IMPL_ONE_OF_FWD_OP_HPP
4 // Copyright Abel Sinkovics (abel@sinkovics.hu) 2015.
5 // Distributed under the Boost Software License, Version 1.0.
6 // (See accompanying file LICENSE_1_0.txt or copy at
7 // http://www.boost.org/LICENSE_1_0.txt)
9 #include <boost/metaparse/v1/is_error.hpp>
10 #include <boost/metaparse/v1/impl/later_result.hpp>
12 #include <boost/mpl/eval_if.hpp>
22 template <class S, class Pos>
25 typedef one_of_fwd_op type;
27 template <class State, class P>
30 typename is_error<State>::type,
32 typename is_error<typename P::template apply<S, Pos> >::type,
33 later_result<State, typename P::template apply<S, Pos> >,
34 typename P::template apply<S, Pos>