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1 | |
2 | #ifndef BOOST_MPL_SET_AUX_HAS_KEY_IMPL_HPP_INCLUDED | |
3 | #define BOOST_MPL_SET_AUX_HAS_KEY_IMPL_HPP_INCLUDED | |
4 | ||
5 | // Copyright Aleksey Gurtovoy 2003-2004 | |
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/set/aux_/tag.hpp> | |
19 | #include <boost/mpl/has_key_fwd.hpp> | |
20 | #include <boost/mpl/bool.hpp> | |
21 | #include <boost/mpl/aux_/overload_names.hpp> | |
22 | #include <boost/mpl/aux_/static_cast.hpp> | |
23 | #include <boost/mpl/aux_/yes_no.hpp> | |
24 | #include <boost/mpl/aux_/type_wrapper.hpp> | |
25 | #include <boost/mpl/aux_/config/workaround.hpp> | |
26 | #include <boost/mpl/aux_/config/static_constant.hpp> | |
27 | ||
28 | namespace boost { namespace mpl { | |
29 | ||
30 | template<> | |
31 | struct has_key_impl< aux::set_tag > | |
32 | { | |
33 | template< typename Set, typename T > struct apply | |
34 | #if BOOST_WORKAROUND(BOOST_MSVC, BOOST_TESTED_AT(1400)) \ | |
35 | || BOOST_WORKAROUND(__EDG_VERSION__, <= 245) | |
36 | { | |
37 | BOOST_STATIC_CONSTANT(bool, value = | |
38 | ( sizeof( BOOST_MPL_AUX_OVERLOAD_CALL_IS_MASKED( | |
39 | Set | |
40 | , BOOST_MPL_AUX_STATIC_CAST(aux::type_wrapper<T>*, 0) | |
41 | ) ) == sizeof(aux::no_tag) ) | |
42 | ); | |
43 | ||
44 | typedef bool_<value> type; | |
45 | ||
46 | #else // ISO98 C++ | |
47 | : bool_< | |
48 | ( sizeof( BOOST_MPL_AUX_OVERLOAD_CALL_IS_MASKED( | |
49 | Set | |
50 | , BOOST_MPL_AUX_STATIC_CAST(aux::type_wrapper<T>*, 0) | |
51 | ) ) == sizeof(aux::no_tag) ) | |
52 | > | |
53 | { | |
54 | #endif | |
55 | }; | |
56 | }; | |
57 | ||
58 | }} | |
59 | ||
60 | #endif // BOOST_MPL_SET_AUX_HAS_KEY_IMPL_HPP_INCLUDED |