#ifndef BOOST_MPL_SET_AUX_INSERT_IMPL_HPP_INCLUDED #define BOOST_MPL_SET_AUX_INSERT_IMPL_HPP_INCLUDED // Copyright Aleksey Gurtovoy 2003-2007 // 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: insert_impl.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/insert_fwd.hpp> #include <boost/mpl/set/aux_/has_key_impl.hpp> #include <boost/mpl/set/aux_/item.hpp> #include <boost/mpl/set/aux_/tag.hpp> #include <boost/mpl/identity.hpp> #include <boost/mpl/base.hpp> #include <boost/mpl/eval_if.hpp> #include <boost/mpl/aux_/na.hpp> #include <boost/type_traits/is_same.hpp> namespace boost { namespace mpl { namespace aux { template< typename Set, typename T > struct set_insert_impl : eval_if< has_key_impl<aux::set_tag>::apply<Set,T> , identity<Set> , eval_if< is_same< T,typename Set::last_masked_ > , base<Set> , identity< s_item<T,typename Set::item_> > > > { }; } template<> struct insert_impl< aux::set_tag > { template< typename Set , typename PosOrKey , typename KeyOrNA > struct apply : aux::set_insert_impl< Set , typename if_na<KeyOrNA,PosOrKey>::type > { }; }; }} #endif // BOOST_MPL_SET_AUX_INSERT_IMPL_HPP_INCLUDED