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#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.
// $Id$
// $Date$
// $Revision$
#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
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