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#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
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