#ifndef BOOST_MPL_TRANSFORM_HPP_INCLUDED | |
#define BOOST_MPL_TRANSFORM_HPP_INCLUDED | |
// Copyright Aleksey Gurtovoy 2000-2004 | |
// Copyright David Abrahams 2003-2004 | |
// | |
// 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: transform.hpp 49267 2008-10-11 06:19:02Z agurtovoy $ | |
// $Date: 2008-10-11 02:19:02 -0400 (Sat, 11 Oct 2008) $ | |
// $Revision: 49267 $ | |
#include <boost/mpl/fold.hpp> | |
#include <boost/mpl/reverse_fold.hpp> | |
#include <boost/mpl/pair_view.hpp> | |
#include <boost/mpl/is_sequence.hpp> | |
#include <boost/mpl/eval_if.hpp> | |
#include <boost/mpl/lambda.hpp> | |
#include <boost/mpl/bind.hpp> | |
#include <boost/mpl/or.hpp> | |
#include <boost/mpl/not.hpp> | |
#include <boost/mpl/aux_/na.hpp> | |
#include <boost/mpl/aux_/inserter_algorithm.hpp> | |
namespace boost { namespace mpl { | |
namespace aux { | |
template< | |
typename Seq | |
, typename Op | |
, typename In | |
> | |
struct transform1_impl | |
: fold< | |
Seq | |
, typename In::state | |
, bind2< typename lambda< typename In::operation >::type | |
, _1 | |
, bind1< typename lambda<Op>::type, _2> | |
> | |
> | |
{ | |
}; | |
template< | |
typename Seq | |
, typename Op | |
, typename In | |
> | |
struct reverse_transform1_impl | |
: reverse_fold< | |
Seq | |
, typename In::state | |
, bind2< typename lambda< typename In::operation >::type | |
, _1 | |
, bind1< typename lambda<Op>::type, _2> | |
> | |
> | |
{ | |
}; | |
template< | |
typename Seq1 | |
, typename Seq2 | |
, typename Op | |
, typename In | |
> | |
struct transform2_impl | |
: fold< | |
pair_view<Seq1,Seq2> | |
, typename In::state | |
, bind2< typename lambda< typename In::operation >::type | |
, _1 | |
, bind2< | |
typename lambda<Op>::type | |
, bind1<first<>,_2> | |
, bind1<second<>,_2> | |
> | |
> | |
> | |
{ | |
}; | |
template< | |
typename Seq1 | |
, typename Seq2 | |
, typename Op | |
, typename In | |
> | |
struct reverse_transform2_impl | |
: reverse_fold< | |
pair_view<Seq1,Seq2> | |
, typename In::state | |
, bind2< typename lambda< typename In::operation >::type | |
, _1 | |
, bind2< typename lambda< Op >::type | |
, bind1<first<>,_2> | |
, bind1<second<>,_2> | |
> | |
> | |
> | |
{ | |
}; | |
} // namespace aux | |
BOOST_MPL_AUX_INSERTER_ALGORITHM_DEF(3, transform1) | |
BOOST_MPL_AUX_INSERTER_ALGORITHM_DEF(4, transform2) | |
#define AUX778076_TRANSFORM_DEF(name) \ | |
template< \ | |
typename BOOST_MPL_AUX_NA_PARAM(Seq1) \ | |
, typename BOOST_MPL_AUX_NA_PARAM(Seq2OrOperation) \ | |
, typename BOOST_MPL_AUX_NA_PARAM(OperationOrInserter) \ | |
, typename BOOST_MPL_AUX_NA_PARAM(Inserter) \ | |
> \ | |
struct name \ | |
{ \ | |
typedef typename eval_if< \ | |
or_< \ | |
is_na<OperationOrInserter> \ | |
, is_lambda_expression< Seq2OrOperation > \ | |
, not_< is_sequence<Seq2OrOperation> > \ | |
> \ | |
, name##1<Seq1,Seq2OrOperation,OperationOrInserter> \ | |
, name##2<Seq1,Seq2OrOperation,OperationOrInserter,Inserter> \ | |
>::type type; \ | |
}; \ | |
BOOST_MPL_AUX_NA_SPEC(4, name) \ | |
/**/ | |
AUX778076_TRANSFORM_DEF(transform) | |
AUX778076_TRANSFORM_DEF(reverse_transform) | |
#undef AUX778076_TRANSFORM_DEF | |
}} | |
#endif // BOOST_MPL_TRANSFORM_HPP_INCLUDED |