#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: 2008-10-11 02:19:02 -0400 (Sat, 11 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 |