ClickHouse/contrib/libboost/boost_1_62_0/boost/mpl/fold.hpp
2016-12-12 07:17:16 +03:00

49 lines
1.1 KiB
C++

#ifndef BOOST_MPL_FOLD_HPP_INCLUDED
#define BOOST_MPL_FOLD_HPP_INCLUDED
// Copyright Aleksey Gurtovoy 2001-2004
// Copyright David Abrahams 2001-2002
//
// 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)
//
// See http://www.boost.org/libs/mpl for documentation.
// $Id$
// $Date$
// $Revision$
#include <boost/mpl/begin_end.hpp>
#include <boost/mpl/O1_size.hpp>
#include <boost/mpl/aux_/fold_impl.hpp>
#include <boost/mpl/aux_/na_spec.hpp>
#include <boost/mpl/aux_/lambda_support.hpp>
namespace boost { namespace mpl {
template<
typename BOOST_MPL_AUX_NA_PARAM(Sequence)
, typename BOOST_MPL_AUX_NA_PARAM(State)
, typename BOOST_MPL_AUX_NA_PARAM(ForwardOp)
>
struct fold
{
typedef typename aux::fold_impl<
::boost::mpl::O1_size<Sequence>::value
, typename begin<Sequence>::type
, typename end<Sequence>::type
, State
, ForwardOp
>::state type;
BOOST_MPL_AUX_LAMBDA_SUPPORT(3,fold,(Sequence,State,ForwardOp))
};
BOOST_MPL_AUX_NA_SPEC(3, fold)
}}
#endif // BOOST_MPL_FOLD_HPP_INCLUDED