williamr@4: williamr@4: #ifndef BOOST_MPL_SET_AUX_ITERATOR_HPP_INCLUDED williamr@4: #define BOOST_MPL_SET_AUX_ITERATOR_HPP_INCLUDED williamr@4: williamr@4: // Copyright Aleksey Gurtovoy 2003-2004 williamr@4: // Copyright David Abrahams 2003-2004 williamr@4: // williamr@4: // Distributed under the Boost Software License, Version 1.0. williamr@4: // (See accompanying file LICENSE_1_0.txt or copy at williamr@4: // http://www.boost.org/LICENSE_1_0.txt) williamr@4: // williamr@4: // See http://www.boost.org/libs/mpl for documentation. williamr@4: williamr@4: // $Source: /cvsroot/boost/boost/boost/mpl/set/aux_/iterator.hpp,v $ williamr@4: // $Date: 2005/06/18 22:03:09 $ williamr@4: // $Revision: 1.4 $ williamr@4: williamr@4: #include williamr@4: #include williamr@4: #include williamr@4: #include williamr@4: #include williamr@4: #include williamr@4: #include williamr@4: #include williamr@4: williamr@4: namespace boost { namespace mpl { williamr@4: williamr@4: // used by 's_iter_impl' williamr@4: template< typename Set, typename Tail > struct s_iter; williamr@4: williamr@4: template< typename Set, typename Tail > struct s_iter_impl williamr@4: { williamr@4: typedef Tail tail_; williamr@4: typedef forward_iterator_tag category; williamr@4: typedef typename Tail::item_::type type; williamr@4: williamr@4: #if defined(BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION) williamr@4: typedef typename eval_if< williamr@4: has_key< Set,typename Tail::next_::type > williamr@4: , identity< s_iter > williamr@4: , next< s_iter > williamr@4: >::type next; williamr@4: #endif williamr@4: }; williamr@4: williamr@4: #if !defined(BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION) williamr@4: williamr@4: template< typename Set, typename Tail > williamr@4: struct next< s_iter > williamr@4: : eval_if< williamr@4: has_key< Set,typename Tail::next_::type > williamr@4: , identity< s_iter > williamr@4: , next< s_iter > williamr@4: > williamr@4: { williamr@4: }; williamr@4: williamr@4: template< typename Set > williamr@4: struct next< s_iter > > williamr@4: { williamr@4: typedef s_iter > type; williamr@4: }; williamr@4: williamr@4: template< typename Set, typename Tail > struct s_iter williamr@4: : s_iter_impl williamr@4: { williamr@4: }; williamr@4: williamr@4: template< typename Set > struct s_iter > williamr@4: { williamr@4: typedef forward_iterator_tag category; williamr@4: }; williamr@4: williamr@4: #else williamr@4: williamr@4: template< typename Set > williamr@4: struct s_end_iter williamr@4: { williamr@4: typedef forward_iterator_tag category; williamr@4: typedef s_iter > next; williamr@4: }; williamr@4: williamr@4: template< typename Set, typename Tail > struct s_iter williamr@4: : if_< williamr@4: is_same< Tail,set0<> > williamr@4: , s_end_iter williamr@4: , s_iter_impl williamr@4: >::type williamr@4: { williamr@4: }; williamr@4: williamr@4: #endif // BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION williamr@4: williamr@4: }} williamr@4: williamr@4: #endif // BOOST_MPL_SET_AUX_ITERATOR_HPP_INCLUDED