1
2#ifndef BOOST_MPL_SET_AUX_INSERT_IMPL_HPP_INCLUDED
3#define BOOST_MPL_SET_AUX_INSERT_IMPL_HPP_INCLUDED
4
5// Copyright Aleksey Gurtovoy 2003-2007
6// Copyright David Abrahams 2003-2004
7//
8// Distributed under the Boost Software License, Version 1.0.
9// (See accompanying file LICENSE_1_0.txt or copy at
10// http://www.boost.org/LICENSE_1_0.txt)
11//
12// See http://www.boost.org/libs/mpl for documentation.
13
14// $Id$
15// $Date$
16// $Revision$
17
18#include <boost/mpl/insert_fwd.hpp>
19#include <boost/mpl/set/aux_/has_key_impl.hpp>
20#include <boost/mpl/set/aux_/item.hpp>
21#include <boost/mpl/set/aux_/tag.hpp>
22#include <boost/mpl/identity.hpp>
23#include <boost/mpl/base.hpp>
24#include <boost/mpl/eval_if.hpp>
25#include <boost/mpl/aux_/na.hpp>
26
27#include <boost/type_traits/is_same.hpp>
28
29namespace boost { namespace mpl {
30
31namespace aux {
32template< typename Set, typename T > struct set_insert_impl
33 : eval_if<
34 has_key_impl<aux::set_tag>::apply<Set,T>
35 , identity<Set>
36 , eval_if<
37 is_same< T,typename Set::last_masked_ >
38 , base<Set>
39 , identity< s_item<T,typename Set::item_> >
40 >
41 >
42{
43};
44}
45
46template<>
47struct insert_impl< aux::set_tag >
48{
49 template<
50 typename Set
51 , typename PosOrKey
52 , typename KeyOrNA
53 >
54 struct apply
55 : aux::set_insert_impl<
56 Set
57 , typename if_na<KeyOrNA,PosOrKey>::type
58 >
59 {
60 };
61};
62
63}}
64
65#endif // BOOST_MPL_SET_AUX_INSERT_IMPL_HPP_INCLUDED
66

source code of include/boost/mpl/set/aux_/insert_impl.hpp