Chris@16: 
Chris@16: #ifndef BOOST_MPL_SET_AUX_INSERT_IMPL_HPP_INCLUDED
Chris@16: #define BOOST_MPL_SET_AUX_INSERT_IMPL_HPP_INCLUDED
Chris@16: 
Chris@16: // Copyright Aleksey Gurtovoy 2003-2007
Chris@16: // Copyright David Abrahams 2003-2004
Chris@16: //
Chris@16: // Distributed under the Boost Software License, Version 1.0. 
Chris@16: // (See accompanying file LICENSE_1_0.txt or copy at 
Chris@16: // http://www.boost.org/LICENSE_1_0.txt)
Chris@16: //
Chris@16: // See http://www.boost.org/libs/mpl for documentation.
Chris@16: 
Chris@101: // $Id$
Chris@101: // $Date$
Chris@101: // $Revision$
Chris@16: 
Chris@16: #include <boost/mpl/insert_fwd.hpp>
Chris@16: #include <boost/mpl/set/aux_/has_key_impl.hpp>
Chris@16: #include <boost/mpl/set/aux_/item.hpp>
Chris@16: #include <boost/mpl/set/aux_/tag.hpp>
Chris@16: #include <boost/mpl/identity.hpp>
Chris@16: #include <boost/mpl/base.hpp>
Chris@16: #include <boost/mpl/eval_if.hpp>
Chris@16: #include <boost/mpl/aux_/na.hpp>
Chris@16: 
Chris@16: #include <boost/type_traits/is_same.hpp>
Chris@16: 
Chris@16: namespace boost { namespace mpl {
Chris@16: 
Chris@16: namespace aux {
Chris@16: template<  typename Set, typename T > struct set_insert_impl
Chris@16:     : eval_if< 
Chris@16:           has_key_impl<aux::set_tag>::apply<Set,T>
Chris@16:         , identity<Set>
Chris@16:         , eval_if< 
Chris@16:               is_same< T,typename Set::last_masked_ > 
Chris@16:             , base<Set>
Chris@16:             , identity< s_item<T,typename Set::item_> >
Chris@16:             >
Chris@16:         >
Chris@16: {
Chris@16: };
Chris@16: }
Chris@16: 
Chris@16: template<>
Chris@16: struct insert_impl< aux::set_tag >
Chris@16: {
Chris@16:     template< 
Chris@16:           typename Set
Chris@16:         , typename PosOrKey
Chris@16:         , typename KeyOrNA
Chris@16:         > 
Chris@16:     struct apply
Chris@16:         : aux::set_insert_impl<
Chris@16:               Set
Chris@16:             , typename if_na<KeyOrNA,PosOrKey>::type
Chris@16:             >
Chris@16:     {
Chris@16:     };
Chris@16: };
Chris@16: 
Chris@16: }}
Chris@16: 
Chris@16: #endif // BOOST_MPL_SET_AUX_INSERT_IMPL_HPP_INCLUDED