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169 lines
3.6 KiB
169 lines
3.6 KiB
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#ifndef BOOST_MPL_MAP_AUX_ITERATOR_HPP_INCLUDED |
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#define BOOST_MPL_MAP_AUX_ITERATOR_HPP_INCLUDED |
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// Copyright Aleksey Gurtovoy 2003-2004 |
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// Copyright David Abrahams 2003-2004 |
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// |
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// Distributed under the Boost Software License, Version 1.0. |
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// (See accompanying file LICENSE_1_0.txt or copy at |
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// http://www.boost.org/LICENSE_1_0.txt) |
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// |
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// See http://www.boost.org/libs/mpl for documentation. |
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// $Id: iterator.hpp 49267 2008-10-11 06:19:02Z agurtovoy $ |
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// $Date: 2008-10-11 02:19:02 -0400 (Sat, 11 Oct 2008) $ |
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// $Revision: 49267 $ |
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#include <boost/mpl/map/aux_/map0.hpp> |
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#include <boost/mpl/map/aux_/at_impl.hpp> |
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#include <boost/mpl/map/aux_/tag.hpp> |
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#include <boost/mpl/iterator_tags.hpp> |
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#include <boost/mpl/if.hpp> |
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#include <boost/mpl/next.hpp> |
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#include <boost/mpl/deref.hpp> |
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#include <boost/mpl/long.hpp> |
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#include <boost/mpl/void.hpp> |
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#include <boost/mpl/aux_/nttp_decl.hpp> |
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#include <boost/mpl/aux_/config/ctps.hpp> |
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namespace boost { namespace mpl { |
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#if !defined(BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION) |
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template< |
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typename Map |
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, long order |
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, long max_order |
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> |
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struct next_order |
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: if_< |
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is_void_< typename item_by_order<Map,order>::type > |
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, next_order<Map,(order+1),max_order> |
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, long_<order> |
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>::type |
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{ |
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}; |
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template< |
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typename Map |
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, long max_order |
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> |
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struct next_order<Map,max_order,max_order> |
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: long_<max_order> |
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{ |
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}; |
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template< typename Map, long order, long max_order > |
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struct m_iter |
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{ |
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typedef forward_iterator_tag category; |
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typedef typename item_by_order<Map,order>::type type; |
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}; |
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template< typename Map, long max_order > |
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struct m_iter<Map,max_order,max_order> |
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{ |
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typedef forward_iterator_tag category; |
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}; |
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template< typename Map, long order, long max_order > |
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struct next< m_iter<Map,order,max_order> > |
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{ |
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typedef m_iter< |
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Map |
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, next_order<Map,order+1,max_order>::value |
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, max_order |
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> type; |
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}; |
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template< typename Map, long max_order > |
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struct next< m_iter<Map,max_order,max_order> > |
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{ |
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}; |
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#else |
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template< |
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typename Map |
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, BOOST_MPL_AUX_NTTP_DECL(long, order) |
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, BOOST_MPL_AUX_NTTP_DECL(long, max_order) |
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> |
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struct next_order; |
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template< |
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typename Map |
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, BOOST_MPL_AUX_NTTP_DECL(long, order) |
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, BOOST_MPL_AUX_NTTP_DECL(long, max_order) |
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> |
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struct next_order_impl |
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: if_< |
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is_void_< typename item_by_order<Map,order>::type > |
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, next_order<Map,(order+1),max_order> |
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, long_<order> |
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>::type |
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{ |
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}; |
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template< |
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typename Map |
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, BOOST_MPL_AUX_NTTP_DECL(long, order) |
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, BOOST_MPL_AUX_NTTP_DECL(long, max_order) |
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> |
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struct next_order |
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: if_c< |
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(order != max_order) |
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, next_order_impl<Map,order,max_order> |
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, long_<order> |
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>::type |
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{ |
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}; |
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template< |
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typename Map |
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, BOOST_MPL_AUX_NTTP_DECL(long, order) |
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, BOOST_MPL_AUX_NTTP_DECL(long, max_order) |
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> |
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struct m_iter; |
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struct m_iter_empty_base {}; |
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template< |
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typename Map |
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, BOOST_MPL_AUX_NTTP_DECL(long, order) |
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, BOOST_MPL_AUX_NTTP_DECL(long, max_order) |
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> |
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struct m_iter_base |
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{ |
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typedef typename item_by_order<Map,order>::type type; |
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typedef m_iter< |
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Map |
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, next_order<Map,order+1,max_order>::value |
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, max_order |
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> next; |
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}; |
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template< |
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typename Map |
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, BOOST_MPL_AUX_NTTP_DECL(long, order) |
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, BOOST_MPL_AUX_NTTP_DECL(long, max_order) |
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> |
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struct m_iter |
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: if_c< |
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(order == max_order) |
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, m_iter_empty_base |
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, m_iter_base<Map,order,max_order> |
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>::type |
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{ |
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typedef forward_iterator_tag category; |
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}; |
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#endif // BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION |
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}} |
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#endif // BOOST_MPL_MAP_AUX_ITERATOR_HPP_INCLUDED
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