#ifndef BOOST_METAPARSE_V1_IMPL_ITERATE_IMPL_HPP #define BOOST_METAPARSE_V1_IMPL_ITERATE_IMPL_HPP // Copyright Abel Sinkovics (abel@sinkovics.hu) 2013. // Distributed under the Boost Software License, Version 1.0. // (See accompanying file LICENSE_1_0.txt or copy at // http://www.boost.org/LICENSE_1_0.txt) #include <boost/metaparse/v1/impl/iterate_impl_unchecked.hpp> #include <boost/metaparse/v1/return_.hpp> #include <boost/metaparse/v1/is_error.hpp> #include <boost/mpl/eval_if.hpp> namespace boost { namespace metaparse { namespace v1 { namespace impl { template <int N, class P, class Accum> struct iterate_impl { typedef iterate_impl type; template <class S, class Pos> struct apply : boost::mpl::eval_if< typename is_error<typename P::template apply<S, Pos> >::type, typename P::template apply<S, Pos>, iterate_impl_unchecked<N, P, Accum, S, Pos> > {}; }; template <class P, class Accum> struct iterate_impl<0, P, Accum> : return_<Accum> {}; } } } } #endif