1 | |
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2 | #ifndef BOOST_MPL_SET_AUX_ERASE_KEY_IMPL_HPP_INCLUDED |
3 | #define BOOST_MPL_SET_AUX_ERASE_KEY_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/erase_key_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 | |
26 | #include <boost/type_traits/is_same.hpp> |
27 | |
28 | namespace boost { namespace mpl { |
29 | |
30 | template<> |
31 | struct erase_key_impl< aux::set_tag > |
32 | { |
33 | template< |
34 | typename Set |
35 | , typename T |
36 | > |
37 | struct apply |
38 | : eval_if< |
39 | has_key_impl<aux::set_tag>::apply<Set,T> |
40 | , eval_if< |
41 | is_same< T,typename Set::item_type_ > |
42 | , base<Set> |
43 | , identity< s_mask<T,typename Set::item_> > |
44 | > |
45 | , identity<Set> |
46 | > |
47 | { |
48 | }; |
49 | }; |
50 | |
51 | }} |
52 | |
53 | #endif // BOOST_MPL_SET_AUX_ERASE_KEY_IMPL_HPP_INCLUDED |
54 |