Function call

include/boost/parser/parser.hpp:7026–7037

            typename Context,
            typename SkipParser>
        auto call(
            Iter & first,
            Sentinel last,
            Context const & context,
            SkipParser const & skip,
            detail::flags flags,
            bool & success) const -> attribute_type<decltype(*first)>
        {
            attribute_type<decltype(*first)> retval{};
            call(first, last, context, skip, flags, success, retval);
            return retval;
        }

        template<
            typename Iter,