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#ifndef BOOST_MPL_AUX_TRANSFORM_ITER_HPP_INCLUDED
#define BOOST_MPL_AUX_TRANSFORM_ITER_HPP_INCLUDED
// Copyright Aleksey Gurtovoy 2000-2004
//
// 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.
// $Id$
// $Date$
// $Revision$
#include <boost/mpl/apply.hpp>
#include <boost/mpl/iterator_tags.hpp>
#include <boost/mpl/next.hpp>
#include <boost/mpl/deref.hpp>
#include <boost/mpl/aux_/lambda_spec.hpp>
#include <boost/mpl/aux_/config/ctps.hpp>
#include <boost/type_traits/is_same.hpp>
namespace boost { namespace mpl {
namespace aux {
#if !defined(BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION)
template<
typename Iterator
, typename LastIterator
, typename F
>
struct transform_iter
{
typedef Iterator base;
typedef forward_iterator_tag category;
typedef transform_iter< typename mpl::next<base>::type,LastIterator,F > next;
typedef typename apply1<
F
, typename deref<base>::type
>::type type;
};
template<
typename LastIterator
, typename F
>
struct transform_iter< LastIterator,LastIterator,F >
{
typedef LastIterator base;
typedef forward_iterator_tag category;
};
#else
template<
typename Iterator
, typename LastIterator
, typename F
>
struct transform_iter;
template< bool >
struct transform_iter_impl
{
template<
typename Iterator
, typename LastIterator
, typename F
>
struct result_
{
typedef Iterator base;
typedef forward_iterator_tag category;
typedef transform_iter< typename mpl::next<Iterator>::type,LastIterator,F > next;
typedef typename apply1<
F
, typename deref<Iterator>::type
>::type type;
};
};
template<>
struct transform_iter_impl<true>
{
template<
typename Iterator
, typename LastIterator
, typename F
>
struct result_
{
typedef Iterator base;
typedef forward_iterator_tag category;
};
};
template<
typename Iterator
, typename LastIterator
, typename F
>
struct transform_iter
: transform_iter_impl<
::boost::is_same<Iterator,LastIterator>::value
>::template result_< Iterator,LastIterator,F >
{
};
#endif // BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION
} // namespace aux
BOOST_MPL_AUX_PASS_THROUGH_LAMBDA_SPEC(3, aux::transform_iter)
}}
#endif // BOOST_MPL_AUX_TRANSFORM_ITER_HPP_INCLUDED
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