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#ifndef BOOST_MPL_MAP_AUX_ITERATOR_HPP_INCLUDED
#define BOOST_MPL_MAP_AUX_ITERATOR_HPP_INCLUDED
// Copyright Aleksey Gurtovoy 2003-2004
// 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: iterator.hpp 49267 2008-10-11 06:19:02Z agurtovoy $
// $Date: 2008-10-10 23:19:02 -0700 (Fri, 10 Oct 2008) $
// $Revision: 49267 $
#include <boost/mpl/map/aux_/map0.hpp>
#include <boost/mpl/map/aux_/at_impl.hpp>
#include <boost/mpl/map/aux_/tag.hpp>
#include <boost/mpl/iterator_tags.hpp>
#include <boost/mpl/if.hpp>
#include <boost/mpl/next.hpp>
#include <boost/mpl/deref.hpp>
#include <boost/mpl/long.hpp>
#include <boost/mpl/void.hpp>
#include <boost/mpl/aux_/nttp_decl.hpp>
#include <boost/mpl/aux_/config/ctps.hpp>
namespace boost { namespace mpl {
#if !defined(BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION)
template<
typename Map
, long order
, long max_order
>
struct next_order
: if_<
is_void_< typename item_by_order<Map,order>::type >
, next_order<Map,(order+1),max_order>
, long_<order>
>::type
{
};
template<
typename Map
, long max_order
>
struct next_order<Map,max_order,max_order>
: long_<max_order>
{
};
template< typename Map, long order, long max_order >
struct m_iter
{
typedef forward_iterator_tag category;
typedef typename item_by_order<Map,order>::type type;
};
template< typename Map, long max_order >
struct m_iter<Map,max_order,max_order>
{
typedef forward_iterator_tag category;
};
template< typename Map, long order, long max_order >
struct next< m_iter<Map,order,max_order> >
{
typedef m_iter<
Map
, next_order<Map,order+1,max_order>::value
, max_order
> type;
};
template< typename Map, long max_order >
struct next< m_iter<Map,max_order,max_order> >
{
};
#else
template<
typename Map
, BOOST_MPL_AUX_NTTP_DECL(long, order)
, BOOST_MPL_AUX_NTTP_DECL(long, max_order)
>
struct next_order;
template<
typename Map
, BOOST_MPL_AUX_NTTP_DECL(long, order)
, BOOST_MPL_AUX_NTTP_DECL(long, max_order)
>
struct next_order_impl
: if_<
is_void_< typename item_by_order<Map,order>::type >
, next_order<Map,(order+1),max_order>
, long_<order>
>::type
{
};
template<
typename Map
, BOOST_MPL_AUX_NTTP_DECL(long, order)
, BOOST_MPL_AUX_NTTP_DECL(long, max_order)
>
struct next_order
: if_c<
(order != max_order)
, next_order_impl<Map,order,max_order>
, long_<order>
>::type
{
};
template<
typename Map
, BOOST_MPL_AUX_NTTP_DECL(long, order)
, BOOST_MPL_AUX_NTTP_DECL(long, max_order)
>
struct m_iter;
struct m_iter_empty_base {};
template<
typename Map
, BOOST_MPL_AUX_NTTP_DECL(long, order)
, BOOST_MPL_AUX_NTTP_DECL(long, max_order)
>
struct m_iter_base
{
typedef typename item_by_order<Map,order>::type type;
typedef m_iter<
Map
, next_order<Map,order+1,max_order>::value
, max_order
> next;
};
template<
typename Map
, BOOST_MPL_AUX_NTTP_DECL(long, order)
, BOOST_MPL_AUX_NTTP_DECL(long, max_order)
>
struct m_iter
: if_c<
(order == max_order)
, m_iter_empty_base
, m_iter_base<Map,order,max_order>
>::type
{
typedef forward_iterator_tag category;
};
#endif // BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION
}}
#endif // BOOST_MPL_MAP_AUX_ITERATOR_HPP_INCLUDED
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Swift