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1 | |
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 |